Note : Les descriptions sont présentées dans la langue officielle dans laquelle elles ont été soumises.
This is an improvement on cement lasting machines of the
type shown in U.S. Patent No 3,g63,8~0 issued June 15, 1976.
This is a division of copending Canadian Patent Appli-
cation Serial ~lo. 294,398, filed January 5, 197~.
The prior art machine is operable on a shoe assembly
formed of a last having an insole located on its bottom and an
upper mounted thereon with the toe portion of the upper margin
being wiped against and secured to the insole and unwiped portions
of the upper margin extending heelwardly of the wiped toe portion
of the upper margin. The machine applies cement in the corners
between the unwiped margin portions and the corresponding
portions of the insole periphery. The machine includes a shoe
assembly support for supporting the shoe assembly bottom-up with
the toe end of the shoe assembly facing forwardly. ~ pair of
nozzles, located above the shoe assembly! are mounted for forward-
rearward movement, for heightwise movement, and for inward-
outward movement. In order to apply cement into the corners
heelwardly from the boundaries between the wiped and unwiped
margin portions, the nozzles are caused to move forwardly while
they are in upper and inner positions until an engaging member~ -
that is mounted for forward-rearward movement with the nozzles,
intersects a stop member. The stop member is so located as to
stop the forward movement of the nozzles when the nozzles are
over the widest part of the shoe assembly bottom heelwardly of
said boundaries. After the stop member stops forward movement
of the nozzles, the nozzles are lowered and moved outwardly into
the corners heelwardly of said boundaries. The stop member is
then moved out of intersecting relationship with the engaging
member so that the nozzles can again resume their fo~ward movement
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so as to bring the nozzles to said boundaries. When the
nozzles have arrived at said boundaries, they are caused to
move rearwardly while being maintained in said corners and
cement is extruded from the nozzles into the corners during
this rearward movement. In order to properly stop the first
mentioned forward movement of the nozzles in the appropriate
position for the particular length of shoe being operated on,
the forward-heelward location of the stop member is manually
adjusted.
In the operation of the prior art machine, the unwiped
portions of the upper margin are the side and heel portions.
The prior art machine includes a slide plate, located rearwardly
of-the support, mounted for forward-rearward movement. Heel
wiping means are mounted to the slide plate for forward movement
with respect to the slide plate in a heel wiping stroke from a
retracted position wherein the heel wiping means is in a
position in readiness for wiping to an advanced position wherein
the heel wiping means has wiped the heel portion of the upper
margin against the corresponding portion of the insole periphery. -
A shoe assembly engaging member is mounted to the slide plate
below the heel wiping means. A side wiping means is located on
each side of the support, each side wiping means being mounted
for inward movement from a position of disengagement with the
shoe assembly through a side wiping stroke to an inner position
wherein the side wiping means has wiped a side portion of the
upper margin against a corresponding portion of the insole
periphery. The slide plate is initially maintained in its rear-
ward position, the heel wiping means is initially maintained in
its retracted position, and the side wiping means are initially
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maintained in their positions of disengagement. Thereafter,
the slide plate is moved forwardly until the shoe assembly
engaging member engages the heel end extremity of the shoe
assembly. This is followed by the imparting of inward movements
of each side wiping means from its position of disengagement
through a side wiping stroke and outward movement of each side
wiping means back to its position of disengagement. After the
side wiping means have returned to their positions of disengage-
ment, a heel wiping stroke is imparted to the heel wiping means.
In the prior art machine, the wiping strokes are imparted
sequentially to the side and heel wiping means because there is
some overlap in the upper margin portions engaged by the side
wiping means and the heel wiping means and it is necessary to
have the side wiping means returned to their positions of dis-
engagement prior to the imparting of the heel wiping stoke to
prevent undesired interference between the side wiping means
and the heel wiping means during the side wiping strokes and the
heel wiping stroke. It is, however, desirable to have the side
and heel wiping strokes take place simultaneously in order to
minimize the time of the operating cycle of the machine in
operating on a shoe assembly.
According to the present invention there is provided a
side and heel lasting machine which is operable on a shoe
assembly formed of a last having an insole located on its bottom
and an upper mounted thereon, the machine including a shoe
assembly support for supporting the shoe assembly bottom-up
with the toe end of the shoe assembly facing forwarding and with
the side and heel portions of the upper margin extending upwardly
of the insole. The machine includes a slide plate, located
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rearwardly of the support, and mounted for forwara-rearward
movement and a heel wiping means mounted to the slide plate
for forward movement with respect to the slide plate in a heel
wiping stroke from a retracted position wherein the heel wiping
means is in a position in readiness for wiping to an advanced
position wherein the heel wiping means has wiped the heel portion
of the upper margin against the corresponding portion of the
insole periphery. The machine includes a shoe assembly engaging
member mounted to the slide plate below the heel wiping means
io and a side wiping means located on each side of the support,
each side wiping means being mounted for inward movement from a
position of disengagement with the shoe assembly through a side
wiping stroke to an inner position wherein the side wiping means
has wiped a side portion of the upper margin against a corres-
ponding portion of the insole periphery. Means is provided for
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initially maintaining the slide plate in a rearward position,
and means is provided for initially maintaining the heel wiping
means in its retracted position. The machine has means for
thereafter moving the slide plate forwardly until the shoe
assembly engaging member engages the heel and the extremity of
the shoe assembly. Means is provided for imparting a heel wiping
stroke to the heel wiping means, and the machine has means for
initially maintaining each side wiping means in its position of
disengagement. There is further provided means for thereafter
imparting a side wiping stro~e to each side wiping means. The
machine of the present invention includes means mounting each
side wiping means for forward-rearward movement and connecting
means for connecting each side wiping means to the slide plate as
to cause forward movement of the side wiping means concomitantly -
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with the forward movement of the slide plate so that the heel
wiping stroke and the side wiping stroke may be performed
simultaneously regardless of the position of engagement of the
shoe assembly engaging member with the heel end extremity of
the shoe assembly.
In accordance with this invention, the prior art machine
has been modified so as to enable the side wiping strokes and
the heel wiping stroke to automatically take place simultaneously
regardless of the length of the shoe assembly and the position
of engagement of the shoe assembly engaging member with the
heel end extremity of the shoe assembly. It may be seen that
this is accomplished by mounting each side wiping means for
forward-rearward movement and by so connecting each side wiping
means to the slide plate as to cause forward movement of both
side wiping means concomitantly with the forward movement of
the slide plate.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a front elevation of the machine;
Figures 2 and 3 are side elevations of the machine
respectively taken along the lines 2-2 and 3-3 of Figure l;
Figure 4 is a partially sectional view of a mounting
of the shoe assembly support;
Figures 5 and 6 are views respectively taken along the
lines 5-5 and 6-6 of Figure 4;
Figure 7 is a partially sectional elevation of a toe
rest-detec*or member assembly and the mounting therefor;
Figure 8 is an elevation of the toe rest-detector
member assembly,
Figure 9 is a view taken along the line 9-9 of Figure 8;
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Figure 10 is an elevation of a side lasting unit;
Figure 11 is a view taken along the line 11-11 of
Figure 10;
Figure 12 is a view taken along the line 12-12 of
Figure 11;
Figure 13 is an isometric view of a side lasting
instrumentality that is a part of the side lasting unit;
Figure 14 is a side elevation of a portion of the
machine showing instrumentalities operating on the heel
portion of the shoe assembly and the cement applying nozzles;
Figure 15 is a view taken along the line 15-15 of
Figure 14;
Figure 16 is a side elevation showing instrumentalities
operating on the
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heel portion of the shoe assembly and drive mechanisms therefor;
Figure 17 is a view taken along the line 17-17 of Figure 16i
Figure 18 is an elevation of a cement pumping mechanism;
Figure 19 is a section of part of the cement pumping mechanismi
Figure 20 is a side elevation of a no~zle raising and lo~ler;ng mechanism;
Figures 21 and 22 are respectively views taken along the lines 21 21 and
22-22 of Figure 20;
Figure 23 is a side elevation bf a portion of the machine that includes
the extrusion rate control means;
o Figures 24 and 25 are respectively views taken along the lines 24-24 and
25-25 of Figure 23;
Figure 26 is a side elevation of a portion of the machine that includes
the stop member and the mounting therefor;
Figures 27 and 28 are respect;vely views taken along the lines 27-27 and
28-28 of Figure 26;
Figure 29 is a view of a braking mechanism that is cooperative with the
stop member to lock it, together with the detector member, in a for~Jard-rean~ard
position.
- Figure 30 is a section of the stop member;
Figure 31 is an 7sometric view showing linkage connect;ng the stop member
and the detector member; ~ .
Figure 32 is an isometric view of the connection of the side wiping means
- to the slide plate;
Figure 33 is a side view of the shoe assembly as it appears in the machine
at the beginning of a machine cycle;
Figure 33A ;5 a view taken along the l;ne 33A-33A of Figure 33;
Figure 34 is a plan view of the shoe assembly as it appears in the machine
after the side and heel portions of the upper have been clamped to the last;
Figure 34A i5 a section taken along the line 34A-34A of Figure 34; and
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Figure 35 is a view showing the no~zles as they appear when applying
cement to the shoe assembly.
OESCRIPTION OF THE PREFERRED EMBO~IME~T
The operator is intended to stand in front of the machine as seen in
Figure 1, to the left of the machine as seen in Figure 2, and to the right of
the machine as seen in Figure 3. Directions extending toward the operator will
be designated as "forward" and directions extending away from the operator will
be designated as "rearward". The front of the machine is closest to the oper-
ator and the back of the machine is furthermost from the operator.
Referr;ng to Figures 4-6, the machine includes a sleeve 10 that is mounted
to a bracket 12. A bar 14 is mounted in the sleeve 10 for heightwise movement.
An a;r operated motor 16, that is secured to the bracket 12, has an upwardly
extending p;ston rod 18 that is secured to the bottom of the bar 14, whereby
the motor 16 can effect heightwise movement of the bar 14. A last pin 20 and a
support plate 22 are secured to the top of the bar 14. A flange 24 is a~fixed
to the front of the bar 14 by means of screws 26 that connect the flange Z4 and
the bar 14 and that extend through slots 2~ in the sleeve 10; A strut 28 is
secured to and extends forwardly of the flange 24.
Referring to F;gures 7-9, a housing 30 is slideably mounted to the strut
~o 28 for forward-rearward movement. An air operated motor 32, mounted to theflange 24, has a forwardly directed piston rod 34 that is connected to the
housing 30. A column 36, extending upwardly of the housing 30, has an air
operated motor 38 formed therein. The motor 38 has an up~.~ardly directed piston
rod 40 that is secured to a bracket 42. A toe rest 44 is secured to and extendsupuardly of the bracket 42. An air operated motor 46, formed ;n the bracket 42,has an up~Jardly directed piston rod 48 and a clevis 50 is secured ~Q the top ofthe piston rod 48. An arm 52 is pivoted to-the clevis 50 by a pin 54 for
swinging movement about the horizontal axis of the pin 54 in a vertical plane
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that lies at right angles to the transverse axis o~ the pin ~4. A detector
member or finger 56 is so`mounted to the arm 52 as to extend upwardly~of the
back o, the arm 52 forwardly of the toe rest 44. A compression spring 58,
interposed between the fronts of the clevis 50 and the arm 52,y;eldably urges
the arm 52 clockwise (Figure 8) about the axis of the pin 54 to thereby yield-
ably urge the finger 56 rearwardly about this axis to a position ~Iherein the
bottom of the back of the arm 52 abuts the clevis 50. A valve 60, mounted to
the front of the bracket 42, has an upwardly directed valve 5pO01 62 that is
resiliently urged upwardly by a conventional spring in the valve 60 into
~O engagement with the front of the arm 52.
The last pin 20, the support plate 22 and the toe rest 44 constitute a
shoe assembly support 63 (Figure 1).
Duplicate side lasting units 64 (Figures 1-3) are located on opposite
sides of the shoe assembly support 63. Referring to Figures 2, 3 and 10-12,
each side lasting unit 64 includes a table 66 that is mounted to the machine
frame on opposite sides of the shoe assembly support 63. An air actuated
motor 68, mounted to each table 66, has a piston rod 70 that is mounted to a
frame 72. Each frame 72 is mounted to its associated table 66 for inward-
outward movement by the frames 72 being slideably mounted on rods 74 that are
secured to the tables 66. A sled 80 is mounted to each frame 72 for for~ard-
.
rearward movement by the sleds 80 being slideably mounted on rods 82 that aresecured to the frames 72.
In the manner shown in U.S. Patent No. 3,962,741, a base 84 is adjustably
mounted to each sled 80. A side last;ng instrumen.ality 86 of the type shown
in U.S. Patent No. 3,962,741 is mounted to each base 84 (see Figure 13).
Referring to Figures 2, 3 and 14-17, a head 88 is located rear~ardly of
the last pin 20 and the lasting units 64. A main slide plate ~0 is slideably
mounted in the head 88 for forward-rearward movement in the manner shown in
U.S. Patent No. 3,963,840. A fluid actuated motor 92, mounted to the head 88,
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has a piston rod 94 connected to a bracket 96 mounted to the main slide plate
90 to effect forward-rearward movement of the main s7ide plate 90. In the man-
ner shown in U.S. Patent No. 3,963,840, a forwardly facing heel cla;Tp gi3 and
forwardly facing heel wipers 100 are movably mounted to the main slide plate 90
with the heel wipers 100 being located above t'ne heel clamp 98. A hold-down
102 is movably mounted to a cover 104 of the main slide plate 90 for forward-
rearward movement and for heightwise movement in the manner shol,ln in U.S. Patent
No. 3,963,840.
Referring to Figures 1-3, 14 and 15,a pair of front posts 106 and 108 and
/O a pair of back posts 110 and 112 are upstanding from the head 88. The two
front posts and the two back posts are located on opposite sides of the head 88
and a slide rod 114 extends between the posts 106 and 110 and between the posts
108 and 112 so as to be located on opposite s;des of the head 88 and so as to
extend in forward-rearward directions. A bearing block 116 is slideably
mounted on one of the rods ll4 and a bearing block 118 is slideably mounted on
the other of the rods 114. A plate 120 extends between the slide rods 114 and
is secured to the bearing blocks 116, 118, the pla~e 120 thus being rnounted forforward-rearward movement. A lug 122, that is upstanding from a bracket 124
secured to the head 88, has an air operated motor 126 pivoted thereto. The
.~0 motor 126 has a forwardly directed piston rod 128 that is mounted to a prong130 depending from the front of the plate 120, whereby the motor 126 effects
forward-rearward movement of the plate 120 and the parts, described below,
mounted thereto.
Referring to Figures 18 and l9, a cement pumping mechanism 132 is mounted
to the slide plate 120 for forward-rearward movement therewith. The mechanism
132 includes a funnel 13~ into which solid granules of thermoplastic cement is
supplied and from which it gravitates into a storage chamber 136 wherein it is
melted by heating Ineans (not shown). The molten cement gravitates from the
chamber 136 into a bore 137 formed by the ;nterior of a hollow sleeve 138 by
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ay of a passage 140 in the hollow sleeve 138 that provides communicat;on
between the chamber 136 an`d the bore 137 and by way o~ the interior of- a val~e142 and a passage 144 that communicates with the bottom of the bore 137. An
air actuated motor 146 has a do~mwardly directed piston rod 148 that is con-
nected to a plunger 150, the plunger 150 being slideable in the bore 137. A
post 152 is secured to and extends downwardly of the mechanism 132. Passages
154 provide communication between the opposite sides of the per;phery o~ the
post 152.and the bottom of the bore 137.
Referring to Figures 14 and 1~, the post 152 is seated in a block 156 that
is swingably mounted on the post 152 and is held on the post 152 by a retaining
ring 158 (Figure 19).
Referring to Figures 14 and 15, a pair of spindles 160 are rotatably
mounted in extensions 162 of the block 156 for swinging movement about a hori-
zontal axis and a heightwise extend;ng spindle 164 is s~ingably mounted in each
spindle 160 ~or s~linging movement about a heightwise extending axis in the man-ner shown in U.S. Patent No. 3,963,840. A nozzle carrier 166 is mounted to
each spindle 164 so as to exten~ forwardly thereof and a nozzle holder 170 is
pivotally mounted to the front of each nozzle carrier 166 for s~linging movemenLabout a heightwise extending axis substantiaily as shown in U.S. Patent No.
3,901,181. A motor 172, mounted to each spindle 160, has a forwardly directed
piston rod 174 that is connected to each nozzle holder 170 to e~fect swingi`ng
movement of its associated nozzle holder 170. A nozzle 176 is mounted ~o and
extends downwardly of each nozzle holder 170. Interconnected passages~ not .
shown, in the members 156, 162, 160, 164, 166 and 170 provide communication
bet~Jeen ~he passages 154 and t~e bottoms of the nozzles 176 substantially in
the manner shown in U.S. Patent ~os. 3,901,181 and 3,963,84Q. Strategically
located electri.c heaters, not shown, serve to maintain the cement in these
passages molten. . ~.
An arm 178 extends radially from each spindle 164. One of the arms 178 is
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connected to the cylinder 180 of an air operated motor 182 and the other arm
178 is connected to the piston rod 184 of the motor 182 whereby the motor 182
may effect rotation of the spindles 164 in the spindles 160 and thereby effect
in~lard and outward movements of the nozzles 176.
Referring to Figures 14 15 and 20-22 a frame 186 is attached to the
block 156. Flanges 188 extend rean"ardly of the frame 186 on each side of the
frame 186 and an air operated motor 190 is pivoted to the back of each flange
188 by a pivot pin 192. The forwardly directed piston rod 194 of each motor
190 is secured to a clevis 196. Each clevis 196 is pivoted by a pin 198 to a
Tug 200 that is secured to and depends from one of the spindles 160. A rear-
wardly facing plunger 202 is secured to each clevis 196 and a valve 204 is
secured to each flange 188. The stem 206 of each valve 2û4 is located rear-
wardly of and in registry with its associated plunger 202. The motors 190 can
thus be seen to e~fect swinging movement of the spindles 160 in the block
extensions 162 and thereby effect heightwise movement of the nozzles 1i6. A
stabilizer bolt 208 (Figures 14 and 15) is mounted to and extends rearwardly of
each side of the frame 186. A spring return air operated motor 210 mounted to
each side of the plate 120 has a forwardly directed piston rod 212 that is in
registry with ~its associated stabilizer bolt 208. Each piston rod 212 has a
head 214 mounted thereon that is adapted to engage its associated bolt 208 in
the manner described below.
Referring to Figures 23-25 a brace 216 is anchored to the main slide
plate 90 for forward-rearward movement therewith. A mount 218 is secured to
the brace 216 and a housing 220 is secured to the mount 218. The housing 22n
is slideably mounted on a rod 222 that extends between the posts 106 and 110
and the bottom of the housing 220 has a roll 223 fixed thereto that is sl;de-
ably received in a cut out 224 in the head 88 thus enabling the housing 220 to
partake of the forw~rd-rear~Jard movement of the main slide plate 90.
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A valve bank 226 is pivotally mounted to the housing 220 for height~Jise
swinging movement about a pivo,t pin 228. The valve bank 226 includes three
side by side valves 230, 232 and 234 which respectively have upwardly extending
valve actuators 236, 238 and 240. An air actuated motor 24%, mounted to a
hanger 244 of the housing 220, has a piston rod 246 that is connected to the
valve bank 226 thus enabling the motor 242 to e~fect heightwise movement of the
valve ban~ 226. A strut 248 connected to the bearing block 116 mounts a cam
bank 250. The cam bank 250 consists of three s;de by side rearwardly directed
cams 2~2, 254 and 256 that are respectively in registry with the valve actua-
o , tors 236, 238 and 240 when the valve bank has been raised by the motor 242 toan upper position. The cam 254 extends further rearwardly than the cams 252
and 256. A latch 258 is mounted to the valve bank 226 for heightwise movement
therewith and, when raised to an upper position by the motor 242, is in inter-
secting relation with a detent 260 that is mounted to the strut 248.
Referring to Figures 26-28, a pair of vert-ically spaced rods 262 and 264
,~ are so mounted to the head 88 as to be below and outwardly offset from the rod
114 extending between the posts 108 and 112. A housing 266 is slideably mountedon the rods 26?, 264 for forward-rearward movement. A valve bank 268, contain-
ing three side by side,valves 270, 272 and 274, is mounted to the housing 266
for for~rd-rearward adjustment. The valves 270, 272 and 274 respectively
have upwardly extending valve actuators 276, 278 and 280. An air actuated
motor'282 is so mounted to the housing 266 as to have piston rod 284 directed
rearwardly with the piston rod located forwardly of and in alignment with the ,"-
valve actuator 276. A stop pin 286 (see Figure 30) is mounted to the motor 282
for forward-rearward adjustment and is located within the cylinder 288 of the
motor 282 forwardly of the piston 290 of the motor 282. An adjusting mechanism
292 so connects the stop pin 286 and the valve bank 268 as to enable them to be
adjusted forwardly and rearwardly in unison. A tail 294 depends from the
housing 266.
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As shown in Figure 29, a bracket 296 extends between elements 298 and 300
of the head 88. A pair of arms 302 and 304 are pivotally mounted to the bracket296 and a brake pad 306 is pivoted to the top of each of these arms with the
bra~e pads being located on opposite sides of the tail 294. The bottom of the
arm 302 is pivoted to the cylinder 308 of an air operated motor 310 and the
bottom of the arm 304 is pivoted to the piston rod 312 of this motor. The
motor 310 is therefore actuable to move the brake pads 306 towards and away
from the tail 294.
Referring again to Figures 26-28, a cam bank 314 is mounted to the bearing
o block 118 for forward-rearward movement therewith. The cam ~ank 314 includescams 316, 318 and 320 that are respectively in alignment with the valve actua-
tors 270, 272 and 274, the cam 320 also being in alignment w;th the piston rod
284. The cam 320 extends further forwardly than the cams 316 and 318.
Referring to Figures 28 and 31, a link 322 is secured to the housing ~66
and depends from and extends forwardly of this housing. A link 324 is secured
to and extends rearwardly of the housing 30. A pin and slot connection 326
connects the lin~s 322, 324 for unitary for~ard-rearward movement whereby the
motor 32 effects concurrent forward-rear~lard movement of the housings 30 and
266.
Referring to Figures 11, 12, 16 and 32, a lug 328 depends from each side
of the front of the main slide plate 90 and a rod 330 ;s adjustably mounted eO
each lug 328 for forward-rearward adjustment. Each rod 330 is captured in a
gib 332 that is secured to each sled 80, the gibs 332 being so constructed as
to enable the main slide plate 90 and the sleds 80 to move forwardly and rear-
wardly in unison while permitting the sleds 80 to have inward-outward movement
with respect to the main slide plate 90.
In the idle condition of the machine: the piston rod 18 is retracted into
the motor 16 to maintain the shoe assembly support 63 in a lower position; the
piston rod 34 is projected out of the motor 32 to maintain the toe rest ~4, the
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finger 56, the valve bank 26~ and t'ne motor 282 in forward positions, the motor38 causes the piston rod ao to move up~lardly to thereby resiliently urge the
toe rest 44 upwardly under the ~orce of pressurized air in the motor 3~; the
piston rod 48 is projected out of the motor 46 to maintain-the finger 56 in an
upper pos;tion with respect to the toe rest 44 with the finger extending
upwardly of the toe rest; the piston rods 70 are retracted into the motors 68
to thus ma;ntain the bases 84 in outer positions and thus position the side
lasting instrumental;ties 86 in outer positions wherein they do not interfere
with the placement of a shoe assembly on the shoe assembly support 63 as
o described below; the piston rod 94 is retracted into the motor 92 to maintainthe main slide plate 90 and the heel clamp 98 and the heel ~;pers 100 carried
by the main slide plate 90 in rearward positions, the motor 92 also, through
the connection provided by the members 328, 330 and 332 thus maintaining the
sleds 80, together with the side lasting instrumentalities 86, in rearward
positions on the rods 82; the piston rod 128 is retracted into the motor 126 to
thereby locate the plate 120 and the parts carried thereby, includi~g the noz-
zles 176, in a rearward position ~lith the detent 260 loca~ed rear~lardly of thevalve bank 226 and the latch 258; the piston rod 148 is retracted into the
motor 146 so that the bottom of the plunger 150 is above the passage 140; the
~o piston rods 174 are projected out of the motors 172 so that tips 334 (Figure 14)
at the bottoms of the nozzles 176 point out~ardly substantially at r;ght angles
to the longitudinal center line of the machine; the piston rod 184 is retracted
into the cylinder 180 of the motor 182 so that the nozzles 176 are swung about
the axes o~ the spindles 164 to positions that are relatively close to each
other; the piston rods 194 are projected out of the motors 190 to thereby move
the nozzles 176 about the ax;s o~ the spindles 160 to raised positions; the
piston rods 212 are projecting out o~ the motors 210 ~lith the heads 214 bearingagainst the stabilizer bolts 203 so that the block 156, together ~ith the
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nozzles 176, is restrained against movement about the upright axis of the post
152; the piston rod 246 is retracted into the motor 242 to thereby lower the
latch 250 out of intersecting relationshi? ~Jith the detent 260 and to lower thevalve bank 226 out of intersecting relationship ~lith the cam bank 250; the pis-ton rod 284 is projected to its greatest extent rearwardly of the motor 282, as
shown in Figure 30, 50 that the piston 290 is spaced from the stop pin 286, the
cam bank 314 at this time being rearward of the valve bank 268; and the piston
rod 312 is retracted into the cylinder 308 of the motor 31n so that the brake
pads 306 are spaced from and not in engagement with the tail 294.
Thermoplastic cement is deposited in the funnel 134 o~ the pumping mech-
anism 132 and gravitates into the storage chamber 136 where;n it is melted.
The molten cement flows from the chamber 136 through the passage 140 and throughthe interior of the valve 142 and the passage la4 into the bottom of the bore
137. From the bottom of the bore 137, the molten cement flows through the pas-
sages 154 and the abo~e mentioned interconnected passages in the members 156,
162, 160, 164, 166 and 170 up to valves in each nozzle holder 170 that are
similar to the valves ;n the nozzle holders shown in U.S. Patent ~'o. 3,901,~81.A shoe assembly 336 (Figures 33 and 33A) comprising a last 338 having an
insole 340 located on its bottom and an upper 342 mounted thereon is placed
~o bottom-up on the shoe assembly support 63 ~lith the vamp of the shoe assembly
resting on the toe rest 44, with the back cone 344 of the last resting an the
support plate 22 and with the last pin 20 inserted into the thimble 3~6 in the
heel port;on of the last so that the toe of the shoe assembly faces forwardly.
At this time the detector finger 56 is located forwardly of the toe end extrem-
ity of the shoe assembly 336 an amount that is dependent on the length of the
shoe assembly 336 and that is also dependent on the distance between the
thimble 346 and the toe end extremity of the shoe assembly. Prior to place-
ment in the machine, the shoe assembly 336 had been toe lasted so that the toe
portion 347 (see Figure 34) of the upper margin had been wiped against and
attached to the insole 340.
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- :
s~
Pursuant to the placelnent o~ the shoe assembly 336 on the shoe assembly
support 63 a valve (not shown) is shifted to so actuate the motor 32 as to
retract its piston rod 34 rearl~ardly under the yieldable force of pressuri~ed
air to thereby yieldably move the bracket 42; together with the toe rest 44 and
the detector finger 56 rear~ardly with the toe rest sliding under the shoe
assembly vamp until this rearward movement is terminated by the engagenlent of . .
the detector finger 56 ~lith the toe end extremity of the shoe assembly 336 as
; indicated in Figure 33. The links 322 324 and the connection 326 enables the -
housing 266 together with the valve bank 268 and the motor 282 to move rear- -~o wardly on the rods 26Z 264 in unison ~lith the rearward movement of the bracket
. 42.
In response to the engagement of the detector finger 56 with the toe end
of the shoe assembly the detector finger is swung counter-clockwise (Figure 8)
about the axis of the pin 54 to thereby cause the arm 52 to engage and shift
the valve spool 62 of the valve 60. In response to this shi~ting of the valve- 60 the hold-down 102 is caused to move forwardly over the heel portion of the
shoe assembly 336 and to be lo~ered to a position wherein its bottom is at sub-
stantially the same elevation as the plane of the bottoms of the heel wipers 98
. in the manner shown in U.S. Patent No. 3 963 840. This is followed by an actu-
ation of the motor 1~ to project its piston rod 18 upwardly under relatively
low pressure to thereby raise the bar 1~ together with the shoe assembly sup-
port 63 and the detector finger 563 until the heel seat portion 348 (Fîgures 33
and 33A) of the insole bears against the bottom of the hold-down 1~2 to thus
locate the insole heel seat portion 348 in a plane substantially level with t~e
plane of the bottoms of the heel ~YiperS 98 in a plane parallel to the plane of
movement of the heel wipers 98.
Referring to Figures a and 5 a brake plate 350 is connected to the bar 14
for heightwise movement therew;th and is located bet~leen a pair of bra~e arms
352 that are pivotally mounted on levers 354. The levers 354 are pivoted to
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' ' ' . - ' ''.. . ' -"-' . ' . .. : .' ~ .'. ' ' .
.
.. . .
the bracket 12 by means of pins 356. The back end of one of the levers 354 is
pivotally connected to the piston rod of an air actua~ed motor 358 and the back
end of the other lever 354 is pivotally conn~cted to the cylinder of'the motor
358.
In the idle condition of the machine, the motor 358 is so actuated as to
cause the brake arms 352 to be spaced from the brake plate 350 so that the
brake arms 352 will not interfere with the aforementioned raising of the bar 14.Pursuant to the raising of the bar 14 and the bearing of the insole heel seat
portion 348 against the bottom of the hold-do~m 102, the motor 358 is actuated
o to force the brake arms 352 against the brake plate 350 to thereby lock the
bar 1~ and the shoe assembly support 63 in their riased positions.
Also pursuant to the raising of the bar 14 and the bearing of the insole
heel seat portion 348 against the bottom of the hold-down 102, the motor 32 is 'actuated to relieve the rear~ardly directed movement of its piston rod 34 and
thus relieve the rearwardly directed force applied by the detector finger 56
against the toe~end of thé shoe assembly 33~and the motor 46 is actuated-to
lo~Jer its ~iston rod fl8 and thereby lower the detector finger ~6 out af engage-
ment ~ith the toe end of the shoe assembly 336. The relieving of the rearwardlydirected farce of the detector finger 56 against the toe end of the shoe
assembly 336 enables the detector finger to move do~m~ard1y without snubbing or
being caught on the toe end of the shoe assembly. ~owever, due to inertia and
the yieldably upwardly directed pressure applied by the toe rest 44 against the
vamp of the shoe assembly 336 by the'motor 38, there is no sign;ficant forward-
rearward shifting of the bracket 42 and the housing 266 ~hen the rear~rardly
directed movement of the piston rod 34 is relieved.
Also pursuant to the raising of the bar 14 and the bearing of the insole
heel seat portion 348 against the bottom of the hold-down 102, the motor 92 is
actuated to move its piston rod'94 forwardly to thereby move the main slide
plate 90 forwardly. As shown in Figure 17, the heel clamp 98 has a bight 360 -'
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and a pair of legs 362 extending forwardly and,divergently from the bight~ ~n
the idle position of the machi'ne, the heel clamp is held in an open position
with the legs 362 spaced relatively far apart by the mechanism sho~m in U.S.
Patent No. 3,963,840. The forward movement of the main sl'ide plate 90 causes
concurrent forward movement of the heel clamp 98 and the heel wipers 100, this
for~lard movement being terminated in response to the engagement of the clamp
'bight 360 with the heel end extremity of the shoe assembly 336 by the mechanismdisclosed in U S. Patent No. 3,963,840 to thereby position the heel clamp 98 in
a clamping position and the heel wipers in a position of readiness for ~liping
in a desired relationship ~ith the heel end of the shoe assembly 336 regardless
of the location of the heel end of the shoe assembly, the location of the heel
end of the shoe assembly being dependent on the ~orward-rearward distance
between the spindle 346 and the heel end of-the shoe assembly. Due to the con-
nection formed by the members 328, 330 and 332 shown in Figure~ 32 between the
main slide plate 90 and the sleds 80, the sleds 80, together with the side last-ing instrumentalities 86, partake of the for~ard movement of the main slide
plate with the sleds 80 moving along the rods ~2~ By the mechanism shown in
U.S. Patent No. 3,963,840, in response to the engagement of the clamp bight 360
with the heel end of the shoe assembly 336, the clamp legs 362 are caused to
move in~Jardly to clamp the sides of the heel end of the shae assembly to thereby
enable the clamp 98 to clamp the entire heel end of the shoe assembly ~s shown
in Figure 34.
Re~erring to Figures 13 and 35, each side lasting instrumentality 86
inciudes a lasting strap 366 made of an elastic~ flexible and deformable mate- 'rial such as urethane. The top of each lasting strap 366 is formed into a
plurality of rigid top segments 366a.
At this time in the machine cycle, the operator momentarily shifts a pair
of valves mounted at the tops of posts 370 (Figures 1-3) at the front of the '-
machine. The shi~ting of these valves actuates the motors 68 to move the sleds8
.
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107~5~
- toye-ther with the bases 84 and the side lasting instrumentalities ~6,inwardly
to positions wherein the side lasting instrumentalities are close to but not in
engagement with the sides of the shoe assembly 336, this inward movement being
permitted by the gibs 332 moving inwardly along the rods 330. This is fol-
lowed, in the manner shown in U.S. Patent Nos. 3,775,797 and 3,962,741 by a
movement of the lasting straps 366 to the position shown in Figures 34, 34A and
35 wherein the lasting straps are pressing the side portions of the upper 342
against the sides of the last 338 with the side portions 372 of the upper margin. extending upwardly of the insole 340 and being folded partway to~lards the insole
by the top segments 366a.
- The shoe assembly engaging parts are now in the position shown in Figures
34 and 34A with the heel clamp 98 pressing the heel portion of the upper 3a2
against the last 338 and the side lasting instrumentalities 86 pressing the sideportions of the upper against the last.
The momentary shifting of the valves in the posts 370 also so actuates the
motor 310 as to force the brake pads 306 against the tail 294 and thus lock the
housing 266, the valve bank 268 and the motar 282 in the po~ition they had
assum2d pursuant to the engagement of the detector finger 56 with the toe end
extremity of the shoe assembly 336~
The momentary shifting of the valves in the posts 370 also so actuates the
o?O
motor 126 as to project its piston rod 128 for~lardly to thus move the plate 120and the parts carried thereby, including the nozzles 176, forwardly with the
now raised nozzles moving over the hold-down 102 The plate 120 continues its
forward movement until the cam 320 engages the piston rod 284, the cam 320
intersecting the valve actuator 280 to shift the valve 27~ just before it
enga~es the piston rod 284. During the forward movement of the plate 12~, the
hold-down 102 is raised from the shoe assembly 336 and is moved rearlJardly to
its idle position in the manner shown in U.S. Patent No. 3,963,840 to prevent
interference bet~Jeen the hold-do~m and the nozzles 176 during the belo~.J
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described rearward cement applying rnovement of the nozzles. The heightwise
position of the shoe assembly"336 ;s not affected by the disengagement of the
hold-down 102 from the shoe assembly due to the aforementioned locking of the
bar 14 against heightwise movement by the actuation of the-motor 358.
The return of the hold-down 102 to its idle position causes a valve to
shift. Pursuant to the shift;ng of this valve and of the valve 274 the motors
190 are actuated to retract their piston rods 194 rearwardly under the forces
of pressurized air'and thus cause the nozzles 176 to be yieldably lowerèd until
they engage the insole 340 in the general region indicated by the number 374 in
o Figure 33A wherein the nozzles 176 are spaced from the upper margin and the
insole periphery laterally of the side portions of the upper margin and the
insole periphery that are between the toe and heel portions of the shoe assembly336 and that are rearward and heelward of the boundaries bet\Jeen the previously '
lasted toe portion 347 of the upper margin and the unlasted side portions 372
of the upper margin. This desired location of the position of engagement 37~
of the nozzles 176 with the insole 340 is accomplished automatically regardless
of the length of the shoe assembiy 336 and regardless of the forward-rearward
distance between the last thimble 346 and the toe end extremity of the shoe
assembly due to the forward-rearward position of the housing 266 and thus of
the valve 274 and the valve actuator 280 being determined by the position of
engagement of the detector finger 56 with the toe end extremity of the shoe
asse~bly 336.
The lo~ering of the nozzles 176 causes the plungers 202 to shift the val'ves
204. The shifting of the valves 204 shuts off the flow of pressurized air to
the motors 210 so that the return springs of these motors retract the heads 21a
out of engagement with the stabilizer bolts 208 to thereby enable the motor 182
to move the nozzles 176 outwardly. The shifting of the valves 204 also so
actuates the motor 182 as to move its cylinder 180 and piston rod 184 away from
each other and thus move the nozzles 176 outwardly under the yieldable force of
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~a27 ~S~'
pressurized air into the angles between the insole 340 and the upper margin
side portions 372 until the nozzles reach the corners between the insole and
the upper margin side portions as indicated in Figure 35.
The shifting o~ the valves 204 also actuates a pneumatic timer, which
a~ter the lapse of a predetermined time period, actuates the motor 282 to
retract its piston rod 284 in a forward direction until the piston 290 engages
the stop pin 286. The motor 126 is therefore able to impart a resumption of
forward movement of the plate 120, together with the nozzles 176, an amount
that is equal to the amount of retraction of the piston rod 284 in the motor
~o 282 when the cam 320 again engages the piston rod 284 to again stop foPward
movement of the plate 120 and the nozzles 176. During th;s resumption of for-
ward movement of the nozzles 176, the nozzle tips 334 are resiliently urged
out~ardly against the side portions 372 of the upper margin by the motor 182
and are resiliently urged downwardly against the insole 340 by the motors 190
so that they are being urged into the corner between the upper margin side por-
tions 372 and the insole 340 when this resumption of forward movement is termi-
nated. The shoe assembly is so constructed and the stop pin is so located in
the motor 282 that the nozzle tips 334 are at the boundaries between the lasted
toe portion 347 and the unlasted side portions 372 of the upper margin ~hen the
resumption of forward movement of the nozzles 176 is terminated.
The pneumatic timer actuated by the shifting of *he valves 204, after the
lapse of said predetermined time period, also actuates the motor 242 to project
its piston rod 246 to thereby raise the valve bank 226 about th2 pivot pin 228
to bring the valve actuators 236, 238 and 240 respect;vely into registry ~Jith
the cams 252, 25q and 256 and to bring the latch 25B into re~istry with the
detent 260.
Pursuant to the aforementioned resumption of forward movement of the plate
120, the cams 316 and 318 respectively en~age the valve actuators 276 and 278
to thereby respectively shift the valves 270 and 272. ~he shifting of the
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valve 270 actuates the ~otor 126 to retract its piston rod 128 to thereby move
the plate 120, together with 'the nozz'les 176, rear~Jardly. The shifting of the
valve 272 actuates the motor 146 to project its pis~on rod 148 and thus move
the plunger 150 do~mwardly and force molten cement out of the nozzle tips 334
into the angles between the side portions 372 of the upper margin and the side
peripheries of the insole 340. The'downward movement of the plunger 15Q cuts
off communication between the chamber 136 and the bore 137 through the passage
1~0. The pressures generated pursuant to the down~lard movement of the plunger
150 causes a ball 376 (Figure 19) that normally sits on a pin 378 to rise and
~o seat against the valve 142 to thereby cut off communication between the cham~er
136 and the bore 137 through the valve 142 and the passage 144. The plate 120,
together with the nozzles 176, continues its rear~Jard movement until the detent260 engages the latch 258.
The nozzle tips 334 co~tinue to be urged into the corners formed by the
upper margin and the ;nsole periphery from the boundaries bet~een the lasted
toe portion 347 of the upper margin and the unlasted side portions 372 of the ,, '
upper ~argin to the heel end extremity of the upper margin during their rear- ~'
ward movement in the manner shown in U.S. Patent No. 3,901,181, with the motors
172 being actuated to swing the nozzles 176 heelwardly about the axes of the
pivotal mounting of the nozzle holders 170 to the nozzle carriers 166 pursuant
to the shifting of the valve 230 by the engagement of the cam 252 with the
valve actuator 236.
During this rearward movement of the nozzles 176, the cam 256 engages the
valve actuator 240 to shift the valve 234. The shifting of the valve 234
causes actuation of the motor'l80 to swing the nozzles 176 in~Jardly and towardseach other when the nozzles are proximate to the heel end extremity of the heel
portion 380 (F;gure 34A) of the upper margin for the purposes set forth in U.S.
Patent No. 3,901,181. ,~
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The engagement of the detent 260 with the latch 258 terminates the rear~ard
mov eme nt o~ the plate 120 and the concurrent rearward cement applying move-
ment of the nozzles 176. The aforementioned forward movement of the main slide
plate 90 to bring the clamp bight 360 into engagement with the heel end of the
shoe assembly 336 had also through the connect;on between the main slide plate
90 and the housing 220 by the brace 216 and the mount 218 moved the latch 2~8
and the valve bank 252 forwardly ~so that the latch 258 and the valve bank 252
are located in forward-rearward positions that are dependent on the forward-
rearward position of the heel end of the shoe assembly 336 thus ensuring that
o the nozzles terminate their rearward movement at the heel end of the shoe
assembly and also ensuring that the valves 230 and 234 are located in the
proper po~itions to ensure that the operations described above that are per-
formed pursuant to the shifting of these valves take place in a desired rela-
tionship to the heel end of the shoe assembly.
It is desirable that a uniform quantity of cement be applied in the corner
between the side and heel portions of the upper margin and the insole periphery
during the heelward movement of the nozzles 176 so that during the belo~.~
described side and heel wiping operations there will be an adequate amount of
cement to ena~le the side and heel portions of the upper margin to be bonded to
~o the insole pursuant to the side and heel wiping operations and so that there
will not be an excess of cement applied which would cause the cement to be
squeezed out inwardly of the side and heel portions of the upper margin onto
the exposed insole pursuant to the side and heel wiping operations. When the
motor 126 is actuated to cause rearward movement of the slide 12û and the noz-zles 176 the nozzles commence their rearward movement at a relatively slow
speed before the motor 126 can cause the rearward movement of the nozzles to
accelerate to a desired speed. Therefore if the motor 146 causes cement to be
extruded from the nozzles 176 at the same rate during the entire rearward cement
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,,
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applying movement of the nozzles there would either be an excess of cement
applied when the n~zzles are moving rearwardly relatively slo~lly at the com-
mencement of their cement applying movement or there would be an inadequate
amount of cement applied when the nozzles have accelerated so as to move rear-
wardly at a relatively high speed. In orcler to overcome this drawback, at the
commencement of the rear~lard cement applying movement of the nozzles 176, pres-surized air passes to the head end of the motor 146 through a regulator set at
a relatively low pressure to thereby cause the plunger 150 to move do~inwardly
at a relatively low speed and thus cause the cement to be extruded through the
~O nozzle tips 334 at a relatively lo~J rate. Pursuant to the rearward cementapplying movement of the nozzles 176, the cam 254 engages the valve actuator
238 to thereby shift the valve 232, this valve remaining shifted during the
remainder of the rearward cement applying movement of the noz~les 176. The
shifting of the valve 232 cuts off the flow of pressurized air to the head end
of the motor 146 through the regulator set at the relatively low pressure and
instead causes pressurized air to pass to the head end of the motor 146 through
a regu~ator set at a relatively high pressure to thereby cause the plunger 150
to move do~nwardly at a relatively high speed and cause the cement to be
extruded through the nozzle tips 334 at a relatively high rate.
The aforementioned shifting of the valve 240 by the cam 256 causes actua-
tion of a second pneumatic timer and a third pneumatic t;mer. After the iapse
of a predetermined period of time, the actuation of the second pneumatic timer
causes actuation of the motor 146 to retract its piston rod 1a8 to its idle
position and thus terminate the extrusion of cement through the nozzle tips 334.After the lapse of a predetermined leng$h of time, the actuation of the
third pneumatic timer actuates the motors 190 to project their piston rods 194
and thereby raise the nozzles 176 to their idle positions.
~ he actuation of the third pneumatic time~,after the lapse of the pre-
determined length o~ time referred to in the preceding paragraph, simultaneously
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~{~7~V S~
causes an inward wiping movement of the side lasting instrumentalities 86 in
the nlanner disclosed ;n U.S. Patent No. 3,963,840 and a forward and inward
movement of the heel wipers 100 in a heel wi~ing stroke also in the manner dis-
closed in U.S. P~tent No. 3,963,840 to thereby cause the side lasting instru-
mentalities and the heel wipers to respect;vely wipe or fold the side and heel
portions of the upper margin against the insole and bond these wiped margin
portions to the insole by means of the previously applied cement. During these
wiping movements, the side lasting instrumentalities 86 and the heel wipers 100
come close to each other but do not impinge on each other regardless of the
~o position that the heel wipers assumed at the termination of the a~orementioned
forward movement of the main slide plate 90 due to the side lasting instrumen-
talities 86 partaking of the for~ard movement of the main slide plate 90 by ~
virtue of the connection formed by the members 328, 330 and 332 between the
main slide plate 90 and the side lasting instrumentalities 86. Therefore,
regardless of any change in the length of the shoe assembly 336 and regardless
of any change in the forward-rearward distance between the thimble 346 and the
heel end extremity between two succeed;ng shoe assemhlies presented to t~e
machine, there is no need to manually adjust the forward-rearward position of
the side lasting instrumentalities 86 relative to the heel wipers 100 between
the machine cycles for the two succeeding shoe assemblies. During the side
wiping o?erations b~ the side lasting instrumentalities 86, the upward yielding
of the toe rest 44 by the motor 38 coacts with the side lasting instrumentali-
ties 86 in the manner shown in U.S. Patent No. 3,962,741. The detector finger
56 was lowered out of engagement with the toe end extremity of the shoe assembly336 prior to the side wiping operation to prevent interference between the
detector finger and the side lasting instrumentalities 86 during the side wipingoperation, this interference being most likely to take place if the detector
finger is not so lowered when operating on relatively short shoe assemblies.
At or near the end of the heel wiping stroke, the motor 3~8 is so actuated
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~ 0~7~()5 ~1
as to cause the brdke arms 352 to disengage the brake plate 350 and thus unlock
the support 63 for heightwisë ;novement. At about the same time, air is intro-
duced under increased bedding pressure to the motor l6 to cause the support 63
to be so forced upwardly as to press the ~iped side and hee~ portions of the
upper margin against the side lasting instrumentalities 86 and the heel ~lipers
9~ under increased bedding pressure to thereby flatten the wiped side and heel
portions of the upper margin and enhance the bon'd between these margin portionsand the insole. When this bedding pressure has been applied for a des~red
length of time, the motor 242 is actuated to retract its piston rod 246 so that
the latch 258 is lowered out of engagement with the detent 260 and the vzlve
bank 226 is lowered out of engagement with the cam bank 250 thus enabling the
motor l26 to resume the rearward movement of the plate l20 and the nozzles l76
to return them to their idle positions and the other parts that have no. alread~done so are returned to their idle positions~ The machine cycle is now com-
pleted and the lasted shoe assembly 336 is removed from the machine.
There follows a recapitulation of the description of the machine parts and
the mode of operation ~f the machine that are pertinent to this invention.
The machine is operable on the shoe assemb-y 336
that ~s formed of the last 3i8 havina the~ insole 340
located on its bottom and the upper 342 mounted thereon with the toe portion
347 of'the upper margin being wiped against and secured to the insole and
un~iped portions 372 of the upper margin extending heelwardly of said wiped
upper margin portion and the machine has the function of appiying cement in ~he
corners between said unwiped margin portions and the corresponding portions of
the insole periphery. The machine comprises the shoe assembly support 63 fnr
supporting the shoe assembly 336 bottom-up with the toe end of the shoe assem-
bly facing forwardly. The pair of nozzles 176, located above the shoe ~ssembly
336. are mounted for forward-rearward movement, for heightwise movemen~, and
for ir,ward-outward movement. The pis'ton rod 284 constitutes a stop member that
. - 27 -
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is located in a particular location. The cam 320 constitutes an engaging mem-
ber, mounted for forslard-rearward movement in unison ~Jith the nozzles ;76, that
is located rearwardly of the stop member 2~4 in in-ersecting relationship with
the stop member. The motors 126, 190, and 182 respectively act as means for
initially retaining the nozzles 176 in rearward, upper, and inner positions.
The motor 126 constitutes means for thereafter moving the nozzles 176, together
with the engaging member 320, forwardly until the engaging member 320 engages
the stop member 284. The motors l90 and 182 respectively constitute means for
thereafter effecting lowering and out~Jard movements of the nozzles 176 to moYe
io the nozzles into said corners heelwardly of the boundaries between said wipedand unwiped margin portions. The motor 282 acts as means for thereafter remov-
: ing the stop member 284 from said particular location to enahle the nozzles 176to resume their for~Jard movement so as to bring the nozzles to said boundaries.
The motors 126, 190 and ]32 act as means operative when the nozzles 176 have
arrived at said boundaries to effect rearward movement of the nozzles ~hile
maintaining the nozzles in said corners. The cement pumping mechanism 132 acts
as means for extruding cement from the nozz-es 1~6 into said corners during saidrearward movements of the nozzles.
The machihe described in the preceding paragraph is improved
~o by comprising a de~ector member, constituted by the -
finger 56, that is mounted for forward-rearward movement. The rods 262, 2O~
movably mounting the stop member 284 and the links 322, 324 connecting the stop
member 284 to the detector 0ember 56 constitute means so mounting the stop mem-
ber 284 and so connecting the stop member to the detector member 56 as to cause
the stop member~t~ have forward-rear~ard movement in unison with the detector
member. The motor 32 acts as means for initially locatinq the detector mem~er
56 in a forward position that is forward of the toe end extremity of the shoe
assembly 336 and also acts as means, operative prior to the forward moveme~t o~
the nozzles 176 first mentioned in the preceding paragraph, for yieldably moving
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the detector member 56, together with the stop member 284,
rearwardly to bring the detector member into engagement with
the toe end extremity of the shoe assembly and to thereby bring
the stop member to said particular location.
The above-described arrangement, including the detector
member, is also described and is claimed in parent Application
Serial No. 294,398.
The means mounting the stop member 284 and connecting
the stop member to the detector member 56 comprises the housing
266, herein referred to as a back housing, to which the stop
member is mounted, the back housing 266 being mounted for
forward-rearward movement, and the connection formed by the
links 322, 324 between the detector member 56 and the back
housing 266 enabling the detector member and the back housing to
have unitary forward~rearward movement. The stop member 284 is
mounted to the back housing 266 for forward movement
from a rearward stop member position that is determinative of
said particular location to a forward stop member position that
is in intersecting relationship with the engaging member 320.
The means for removing the stop member 284 from said particular
location comprises the motor 282 which acts as means for moving
the stop member from said rearward stop member position to said
forward stop member position, the intersection of the engaging
member 320 with the stop member 284 during the resumption of the
forward movement of the nozzles 176, referrea to in the preceding
paragraph, when the stop member 284 is in said forward stop
member position being determinative of the arrival of the nozzles
176 at said boundaries.
~he above-described arrangement, including the stop member
- 29 -
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7~)5~-3
.
and the means for moving the stop member is also described and
is claimed in a copending divisional Application Serial No.
325,309, filed April 11, 1979.
The shoe assembly support 63 comprises the last pin 20
and the support plate 22, which constitute a back support
element for supporting the back part of the shoe assembly 336,
and the toe rest 44, which constitutes a front support element
for supporting the forepart of the shoe assembly 336. The
housing 30, hereafter referred to as a front housing, is located
forwardly of the back support element 20, 22 and is mounted for
forward-rearward movement and the front support element 4a is
mounted to the front housing 30. The detector member 56 is
mounted to the front housing 30 and is located forwardly of and
extends upwardiy of the front support element 44. The motor 32,
which acts as means for yieldably moving the detector member 56
rearwardly, is a yieldable force applying drive mechanism that
is connected to the front housing 30. The connection formed
by the links 322, 32a is between the front housing 30 and the
back housing 266 and enables the two housings to have unitary
forwar~-rearward movement.
The machine is operable on the shoe assembly 336 that is
formed of the last 338 having the insole 340 located on its
bottom and the upper 3a2 mounted thereon. The shoe assembly
support 63 supports the shoe assembly 336 bottom-up with the
toe end of the shoe assembly facing forwardly and with the side
and heel portions of the upper margin extending upwardly of
the insole. The main slide plate 90, located rearwardly of the
support 63, is mounted for forward-rearward movement. The heel
wipers 100 constitute heel wiping means that are mounted to the
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slide plate 90 for forward movement with respect to this
slide plate in a heel wiping stroke from a retracted position
wherein the heel wiping means 100 is in a position in readiness
for wiping to an advanced position wherein the heel wiping
means 100 has wiped the heel portion of the upper margin against
the corresponding portion of the insole periphery. The heel
clamp bight 360 constitutes a shoe assembly engaging member that
is mounted to the slide plate 90 below the heel wiping means
100. The lasting straps 366 constitute side wiping means,
located on each side of the support 63, that are each mounted
for inward movement from a position of disengagement with the
shoe assembly 336 through a side wiping stroke to an inner
position wherein the side wiping means 366 has wiped a side
portion of the upper margin against a corresponding portion of
the insole periphery. The motor 92 acts as means for initially
. :
maintaining the slide plate 90 in a rearward position. The heel
wiping means 100 is initially maintained in its retracted
position by an air operated motor 380 (Figures 16 and 17) being
so actuated as to retract its piston rod 382 in the manner
shown in U.S. Patent No. 3,963,840. The motor 92 is thereafter
so actuated as to provide means for thereafter moving the slide
plate 90 forwardly until the shoe assembly engaging member 360
engages the heel end extremity of the shoe assembly. The motor
380 is thereafter so actuated as to pro~ect its piston rod 382
and thereby, in the manner shown in U.S. Patent No. 3,g63,840,
act as means for im~arting a heel wiping stroke to the heel
wiping means 100. The projection of the piston rods 70 out of
the motors 68 constitutes means for initially maintaining each
side wiping means 366 in its position of disengagement. Motors
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384 and 386 (Figure 13) are thereafter so actuated as to
constitute means for imparting said side wiping stroke to each
of said side wiping means 366 in the manner shown in U.S~
Patent Nos. 3,775,797; 3,962,741 and 3,963,840.
The machine described in the preceding paragraph is
improved, by comprising connecting means, constituted by the
rods 82, mounting each side wiping means 366 for forward-rearward
movement and means, constituted by the members 328, 330 and 332,
so connecting each side wiping means 366 to the slide plate 90
as to cause forward movement of the side wiping means 366
concomitantly with said forward movement of the slide plate 90
whereby the heel wipins stroke and the side wiping strokes may
be performed simultaneously regardless of the position of
engagement of the shoe assembly engaging member 360 with the
heel end extremity of the shoe assembly 336.
The machine incorporates the sled 80 located on each side
of the support 63 with each side wiping means 366 being mounted
to its associated sled for inward-outward movement to thereby
provide said mounting for inward-outward movement of the side
wiping means. The motors 68 constitute means for initially
maintaining each sled 80 in an outer position to thereby place
each side wiping means 366 in a relatively remote position
from the support 63 to permit placement of the shoe assembly
336 on the support 63. The motors 68 also act as means for
thereafter moving each sled 80 inwardly to thereby place each
side wiping means 366 in its position of disengagement. In
accordance with this invention, the machine has the improvement
wherein the connecting means comprises the connecting member in
the form of the rod 330 associated with each silea 80 that is
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rigidly connected to the slide plate 90 and is so connected
to its associated sled 80 as to permit inward-outward movement
of its associated sled.
The machine incorporates a mechanism for applying a
substantially uniform quantity of cement along the surface of
a workpiece. This mechanism includes the nozzle 176 mounted
for movement from a starting position to a final position
along the workpiece and the motor 126 connected to the nozzle
operable to effectuate said nozzle movement. The motor 126
has controls that act as means for initially causing the motor
to maintain the nozzle 176 in said starting position and means ..
for thereafter operating the motor to effect said nozzle move-
ment. The cement pumping mechanism 132 constitutes means for
extruding cement from the nozzle 176 during said nozzle movement.
The mechanism described in the preceding paragraph has
the improvement that includes first extrusion rate control means,
effective at the beginning of the nozzle movement when the
motor 126 is moving the nozzle 176 at a relatively slow speed,
to cause the extruding means 132 to extrude the cement from the
nozzle at a relatively slow rate and second extrusion rate
control means, operable after the nozzle 176 has moved a pre-
scribed distance from its starting postion.that is less than the
dist~nce from its starting position to its final position at which time the
motor 126 is m~oving the n~zz~e at a relatively high sp.eed, to;cause the ex-
truding means 132 to extrude the cement from the nozzle at a relatively high rate.
The cement applying mechanism includes the cam 254
which acts as an actuating member and the valve 232 which acts
as a control member, the control member 232 being so located
in intersecting relationship with the actuating member 254 as to
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be intersected by the actuating member when the nozzle 176
has moved through said prescribed distance. The cement
applying mechanism also includes a control that acts as means
responsive to the intersection of the actuating member 25~
with the control member 232 for operating said second extrusion
rate control means.
The extruding means 132 includes the motor 146 which
functions as a fluid pressure operated pump. The first
extrusion rate control means comprises means for causing
pressurized fluld to pass to the pump 146 to operate the
pump at a relatively low pressure and the second extrusion rate
control means comprises means for causing pressurized fluid to
pass to the pump 146 to operate the pump at a relatively high
pressure.
The above-described cement applying mechanism is also
disclosed and is claimed in a copending divisional Application
Serial No. 325,311 , filed April 11, 1979.
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