Note: Descriptions are shown in the official language in which they were submitted.
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MULTIPLE POINT DOOR LOCKING SYSTEM,
WITH HANDLE TURNING DIRECTION CONTROL
BACKGROUND OF THE INVENTION
There is need for simple, highly compact, durable and efficient door
locking and unlocking devices, where deadbolts and latches are to be operated,
as
from the inner and outer sides of doors. In
particular, there is need for
improvements in mechanism responsive to door handle turning, and incorporating
means enabling handle positioning for selective handed turning, clockwise or
counterclockwise. One example enables selected direction handle turning at the
door inner side, with mechanism responsive to door unlocking at the door inner
side, to secure door unlatching.
SUMMARY OF THE INVENTION
According to the present invention there is provided a locking system
enabling selective (right or left) handle turning direction to operate an
unlocking
mechanism, comprising:
a) a handle,
b) a gear rack driven linearly by rotation of the handle, the gear
rack including first and second coupling racks, and
c) a coupling means, and
d) a plate selectively coupled to the gear rack by the coupling
means, wherein the coupling means is configured to selectively couple either
the
first coupling rack to said plate in a first selected position or said second
coupling
rack to said plate in a second selected position, wherein the plate moves in a
first
linear direction in response to handle rotation, wherein when said coupling
means
is in said first selected position to couple said plate to said first coupling
rack, a
rotation of said handle in a first rotational direction displaces said plate
in said first
linear direction, wherein when said coupling means is in said second selected
position to couple said plate to said second coupling rack, a rotation of said
handle in a second rotation direction displaces said plate in said first
linear
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direction, wherein movement of said plate in said first linear direction
operates
said unlocking mechanism, and wherein said first rotational direction is
opposite of
said second rotational direction.
As will be seen, such structure and functioning enables or facilitates
door installation and operation for unlocking operation, by turning to handle
either
clockwise or counterclockwise, with the basic mechanism of the lock structure
remaining unchanged.
Another object includes provision of such coupling to include two
coupling racks, one of which is operatively coupled to the driven part when
the
handle is rotated clockwise, and the other of which is operatively coupled to
the
driven part when the handle is rotated counterclockwise. As will be seen, the
selector is alternatively coupled to one or the other of two coupling racks,
characterized in that the non-coupled rack remains inactive when the coupled
rack is
displaced in said direction in response to handle rotation, for either
direction of such
rotation.
A further object includes provision of the driven means to include a
linearly movable lock actuating member to which one or the other of the racks
is
coupled by the selector. As will be seen, the selector may comprise a
connector
such as a pin, easily shifted between alternate positions of rack coupling to
the
lock actuating member, as at the time of lock system installation. The
uncoupled
rack typically "floats" inactively during coupled rack displacement. Yet
another
object includes provision of such racks to be separately movable in parallel
relation,
at opposite sides of a rack engaging gear driven by handle rotation.
An additional object includes provision of the selector in the form of a
connector shiftable between alternate positions of rack coupling to the lock
actuating member, as at the time of lock system installation.
Yet another object includes provision of the lock actuating member
in the form of a linearly movable plate incorporating a further rack
operatively
coupled to a driven gear that operates door locking and unlocking mechanism.
The two coupling racks, the further rack, and the plate are typically
longitudinally
vertically oriented for movement longitudinally, in compact, efficient aligned
relation, for door mounting.
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In accordance with a further aspect of the invention, the structure as
referred to, may be efficiently incorporated in a multi-function door lock
system
comprising:
a) a frame having a first side and a second side opposite said first
side,
b) a dead bolt and a door latch connected to the frame configured
to move between retracted and extended positions,
c) a first rotary control connected to said frame, having a first axis
of rotation and configured to control deadbolt movement between extended and
retracted positions via a primary cam mechanism having a second axis of
rotation off-
spaced from said first axis of rotation and acted upon by said first rotary
control,
d) a second rotary control having a third axis of rotation off-spaced
from said first and second axes of rotation and configured to control latch
movement
between extended and retracted positions, via secondary cam mechanism,
e) a link operatively connected to said secondary cam mechanism
and contactable with said primary cam mechanism to move said deadbolt to said
retracted position in response to operation of said second rotary control when
said
latch is moved toward said retracted position by said second rotary control,
as
effected via a rotary input to said second rotary control from one of said
first or
second sides of said frame,
wherein, upon rotary input to said second rotary control, said link is
configured to move normal to said movement of said deadbolt and said door
latch
and to contact said primary cam mechanism upon said link movement to affect
movement of said dead latch between said retracted and said extended
positions.
These and other objects and advantages of the invention, as well as
the details of an illustrative embodiment, will be more fully understood from
the
following specification and drawings, in which:
DRAWING DESCRIPTION
Fig. 1 is an elevation showing a door edge with two inputs (latch key
and handle) from the door extension side, and two inputs (finger and thumb,
knob
and door handle) from the door interior side;
Fig. 2 is an elevation taken on lines 2-2 of Fig. 1;
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Fig. 3 is an elevation taken on lines 3-3 of Fig. 1;
Fig. 4 is a vertical section taken on lines 4-4 of Fig. 2;
Fig. 5 is an elevation taken on lines 5-5 of Fig. 4 and showing the
frame and actuating mechanism within the frame, as viewed from the door
interior
side; both deadbolt and latch elements extended;
Fig. 6 is an elevation taken on lines 6-6 of Fig. 4; and showing both
deadbolt and latch elements extended into openings in a door frame; and as
viewed from the door exterior side;
Fig. 7 is a view like Fig. 5, but showing the deadbolt retracted, and
latch extended;
Fig. 8 is a view like Fig. 6, but showing the deadbolt retracted and
latch extended;
Fig. 9 is a view like Fig. 8 but showing both the deadbolt and latch
retracted, whereby the door can freely swing between locations at opposite
sides
of the door frame;
Fig. 10 is a view like Fig. 5, but showing locked positions of different
actuator elements;
Fig. 11 is a view like Fig. 6, but showing locked positions of different
actuator elements;
Fig. 12 is a view like Fig. 10 but showing unlocked positions of the
elements seen in Fig. 10;
Fig. 13 is a view like Fig. 11 but showing unlocked positions of the
elements seen in Fig. 11;
Fig. 14 is a fragmentary section taken on lines 14-14 of Fig. 10;
Fig. 15 is a fragmentary section taken on lines 15-15 of Fig. 12;
Fig. 16 is a fragmentary section, like Fig. 15, but viewing the frame
with extended and interior sides reversed;
Fig. 17 is a perspective view of an actuator arm seen in Figs. 12 and
13;
Fig. 18 is a section showing holdback mechanism in engaged
position; with latch bolt in extended position;
Fig. 19 is like Fig. 18 but shows the holdback mechanism in
sidewardly disengaged position, with the latch bolt in retracted position;
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Fig. 20 is like Fig. 19, but with a hold back plate displaced
downwardly into a groove in the retracted latch;
Fig. 21 is an exploded view of the latch plate, the latch bolt; and the
hold back plate retainer;
Fig. 22 is a view like Fig. 5, but showing split cam structure, the
deadbolt being in locked extended position, and the latch also being extended.
Fig. 23 is an enlarged section taken on lines 23-23 of Fig. 22;
Fig. 24 is a view like Fig. 6, and showing split cam mechanism in
deadbolt extended and looked position, with a deadlock arm in actuated
position;
Fig. 25 is a view like Fig. 24, showing the deadlock arm moved away
from the deadbolt to allow deadbolt release;
Fig. 26 is a view like Fig. 25, showing elements when deadbolt and
latch are retracted;
Fig. 27 is a section taken on line 27-27 of Fig. 24, elements being
locked;
Fig. 28 is a view like Fig. 27, showing elements in unlocked
positions;
Fig. 29 is a plan view section taken on lines 29-29 of Fig. 24,
elements being locked;
Fig. 30 is a section taken on lines 30-30 of Fig. 29;
Fig. 31 is an exploded perspective view showing split cam
mechanism;
Fig. 32 is a perspective view of mechanism elements; and
Fig. 33 is a view similar to Fig. 32, but showing additional elements.
Fig. 34 is an elevation showing structure incorporating the invention;
Fig. 35 is a perspective exploded view of preferred apparatus
incorporating the invention;
Fig. 36 is an enlarged vertical elevation showing elements including
racks and gears shown in Fig. 34, and a door handle turnable clockwise to
unlock
the door, in response to activation of one of two parallel racks;
Fig. 36a shows the handle of Fig. 34 in relation to a door installation;
Fig. 37 is a view like Fig. 36, with the door handle turnable
counterclockwise to activate the other of the two parallel racks; and
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Fig. 37a shows the handle of Fig. 37 in relation to a door installation;
Fig. 38 is a section taken on lines 38-38 of Fig. 37.
DETAILED DESCRIPTION
In the drawings, a preferred multi-function door lock system 10, has
a mounting frame 11 sized for insertion into a door opening 11.
The frame has opposite sides 12 and 13 which respectively face
toward the door exterior 14, and the door interior 15. The front side 16 of
the
frame is carried by a mounting plate 17 held in position by fasteners 18, as
seen
in Fig. 1. As also seen in Fig. 2, a deadbolt 19 is carried by the frame to
protrude
from the plate 17, via opening 20, as the bolt is moved between extended
position
19a (see Fig. 6) and retracted position 19b in the frame (see Fig. 7); and a
latch
bolt 21 is carried by the frame to protrude from plate 17 via opening 22, as
it is
moved between extended position 21a and retracted position in the frame.
Elongated
frame structure appears at 11a---11d. See Figs. 10 and 11.
With additional reference to Fig. 24, a first rotary control such as rotary
actuator 25 has a first axis of rotation 31 and is located at one level on the
frame, at
the interior side of the door, for example, to control deadbolt movement
between extended and retracted positions via compact mechanism in the frame.
That mechanism typically includes primary cam 26 having a second axis of
rotation 33 off-spaced from first axis of rotation 31. Actuator 25 is
typically gripped
by the user's thumb and finger, to be turned in operating the deadbolt. A
second
rotary control, handle 27 has a third axis of rotation 35 off-spaced from
first and
second axes of rotation 31, 33 and is located at a second and typically lower
level,
to project from the frame, at the interior side of the door, for example, to
control
latch 21 movement between extended and retracted positions via compact
mechanism in the frame, that mechanism including a secondary cam
mechanism 28. See Fig. 5.
Fig. 1 also shows a key 29 projecting or inserted via keyhole 29a at
the exterior side of the door, i.e. opposite from rotary actuator 25, to be
operatively connected with the first rotary control for moving the deadbolt
(as
between extended or locking positions, and a retracted or unlocking position).
Also
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Fig. 1 shows a handle lever 32, projecting at the exterior side of the door,
and at the
opposite side of the frame from handle 27. Handle 32 is operatively connected
with the second rotary control mechanism as is handle 27 to control latch
movement between extended and retracted positions, in response to manual down-
turning of handle 32, at the exterior side of the door.
Latch movement between extended and retracted positions occurs in
response to turning of either of handles 27 and 32 as effected via compact
secondary cam mechanism 28.
Means is provided and between the secondary cam mechanism 28,
and primary cam mechanism 26 comprised of upper split cam parts 55 and 55a
and arms 39 and 39a, to effect deadbolt movement as aforesaid in response to
operation of said second rotary control, as effected via rotary input to said
second
rotary control from only one side of the frame, Thus, for example, as interior
side
handle 27 is turned to turn shaft 27a, not only is the latch retracted from
extended
position in engagement with the door frame or associated hardware, at opening
22,
(see Figs. 12 and 13) but also the deadbolt is retracted from extended
position in
engagement with the door frame or associated hardware, whereby a person
trapped at the door interior side (building room side) can quickly escape from
that
interior by opening the deadbolt locked and latch engaged door in response to
emergency turning of handle 27 alone; this occurs even though actuator 25 and
key
29 are not manipulated. This is enabled by provision and operation of lower
secondary cam mechanism 28 situated on each of split hubs 40 and 40a effecting
downward translation of a link 36 (see Fig. 12) which extends upwardly into
connection with compact upper or primary split cam mechanism 26, and which in
turn effects deadbolt retraction from locking or extended positions. In this
regard,
as the secondary split cam mechanism is operated by handle 27, the latch is
retracted from engagement with the door frame or associated hardware. As a
result, the door is completely unlocked, i.e. is free for swinging to allow
"panic"
escape. See in this regard lower split cam mechanism arm 50 in Figs. 12 and
25,
rotating into engagement with foot 36a of link 36 to displace 36 downwardly,
as in
Fig. 25. This causes or effects downward movement of arm extension 36a', pin
guided at 36c, to push pin 38a down to engage arm 38, rotating it and
actuating
arm 39 clockwise in Fig. 25. This causes downward and leftward movement of
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actuating arm 39, of the upper split cam (see also Fig. 31), so that a pin 39b
extending in deadbolt slot 49 retracts the deadbolt due to pin 39b movement to
the
left, in vertical lost motion slot 49 in the deadbolt 19, retracting the
deadbolt to the
left, in Fig. 26. Arms 39 and 39a of the upper split cam extend from hubs 39
and
39a, in Fig. 31. The arms are assembled side by side. See Fig, 30.
In this regard, return of the deadbolt to the right in Fig. 24 is effected
by rotation of key 29 or by actuator 25, rotating the rotor 53 clockwise in
Fig. 24. A
lug 53a on 53 then cams or rotates the upper split cam part 55
counterclockwise,
which rotates 39 counter-clockwise, pushing the deadbolt to the right, via pin
39a
movement in slot 49. Alternatively, rotation of rotor 53 counterclockwise by
the key
causes lug 53a to push the corresponding upper split cam part 55a and
actuating
arm 39 clockwise to retract the deadbolt.
Figs. 8 and 9 also show mechanism to retract the latch 21 in response
to reverse (counter-clockwise) rotation of rotor 53 by either of actuator 25
or key 29,
seen in Fig. 1. As shown, dog or lug 53a on rotor 53 (rotated
counterclockwise)
engages projection 61a on lever 61, pivoted at 62, to rotate 61
counterclockwise.
Lower extension 61b on 61 then engages protrusion 56 associated with the
secondary cam mechanism 28 to retract the latch. That mechanism includes a
split hub 40, 40a (Figs. 4, 14, 16) and secondary cam mechanism 28 which
rotates
clockwise in Figs. 5 and 12 to engage and displace lug 42 on the latch body
21a,
(Fig. 6) retracting the latch to the right in Fig. 5, against compression
spring 43.
Arm 50 on the hub 40a is rotatable to displace foot 36a on link 36
downwardly. This movement causes downward translation of link 36 (see Figs.
12-17 and 26) effecting or enabling retraction of the deadbolt, via operation
of the
primary cam mechanism, as referred to above. Part 406 in Figs. 5 and 6 does
not
dog secondary cam mechanism 28 but is axially spaced between 40 and 40a.
In this regard, counterclockwise turning of rotor 53 in Fig. 24 in
response to turning of key 29 causes lug 53a on the rotor to engage the
primary split cam extension 55a on arm 39 and thereby rotate that arm
clockwise
in Fig. 25 for retracting the bolt. Rotor 53 is also rotatable by the actuator
25 at
the interior side of the door, enabling unlocking of the deadbolt.
In Figs. 5-9, and 17, and as referred to, secondary cam mechanism 28
carried by rotary split hub part 40 is operable upon handle actuated rotation
of
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40 to rotate and engage lug 42 on the latch to push the latch into retracted
position. As referred to, rotation of 28 is effected by handle 27 at the inner
side of
the door, which also effects deadbolt retraction, via link 36. See Figs. 14,
and 25.
In addition, rotation of companion split hub part 40 by the exterior side
handle 32
(see Fig. 5) effects latch retraction via rotation of secondary cam mechanism
28 to
engage protrusion 56 on the latch, (see Fig. 8) to push the latch into
retraction, but
without affecting the status of the deadbolt. To retract the deadbolt, the key
29
must be inserted and turned, to rotate rotor 53, as referred to above.
Figs. 18-21 show the provision of hold back plate 95 movable
downwardly, as seen in Fig. 20, to effect insertion of the plate lower tip
portion 95a
into a groove 76 in the top of the latch 21. This holds the latch against
movement
into latching position. Plate 95 is carried by the frame for sliding movement.
A
serrated pusher 97 associated with the plate protrudes at 97a for thumb
actuation,
as seen in Fig. 1. A hold back plate retainer 98 is engageable by a
rightwardly
movable clutch 79 (see Fig. 18 and 19) actuated by the pivotable extension 55a
of
the cam part 55, pivoted at 62a. When lever 61 is moved leftwardly to bring
groove
76 into registration with hold back plate tip portion 95a, as by clockwise
rotation of
rotor 53, the latch 21 is displaced to the left, by lower extent of cam part
of lever
61, to bring groove 76 into vertical registration with hold back tip 95a, at
which time
the hold back is movable downwardly, allowing the teeth 99a on clutch 79 to
engage teeth 98a on the retainer 98 carried by the plate 95, locking the latch
in
retracted position.
SUMMARY OF USER OPERATION
1. From exterior side of door, key 29 is turning to unlock (retract) the
deadbolt 19. Then handle 32 is turned to retract latch 21, to open door, and
also
perform this function in case deadbolt was already retracted.
2. From interior side of door, rotary actuator 25 is turnable to unlock
(retract) the deadbolt. Also, actuator 25 is turnable to effect retraction of
latch 21,
via lever 61. This enables operation of the hold back pusher 97 to enable door
to
swing freely.
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3. From interior side of door, handle 27 can be turned to retract both
latch and the deadbolt, as in an emergency.
In Fig. 36a, a preferred multi-function door lock system or apparatus
10, has a mounting frame 11 sized for insertion into a door opening 11'.
The frame has opposite sides 12 and 13 which respectively face
toward the door exterior 14, and the door interior. See side 13 facing the
door
interior. The front side 16 of the frame is carried by a mounting plate 17
held in
position by fasteners 18, as seen in Fig. 1. As seen in Figs. 2 and 36a a
deadbolt
19 is carried by the frame to protrude from the plate 17, via opening 20, as
the bolt
is moved between extended position 19a (see Fig. 6) and retracted position 19b
in
the frame (see Fig. 7); and a latch bolt or latch 21 is carried by the frame
below 19,
to protrude from plate 17 via opening as it is moved between extended position
21a
and retracted position in the frame. Elongated frame structure appears at 11a--
--
11d. See Figs. 10 and 11.
A first rotary control such as rotary actuator 25 is located at one level on
the frame, at the interior side of the door, for example, to control deadbolt
movement between extended and retracted positions via compact mechanism in
the frame. That mechanism typically includes primary cam 26. Actuator 25 is
typically gripped by the user's thumb and finger, to be turned in operating
the
deadbolt. A second rotary control, such as handle 27 is located at a second
and
typically lower level, to project from the frame, at the interior side of the
door, for
example, to control latch 21 movement between extended and retracted positions
via compact mechanism in the frame, that mechanism typically including
secondary cam mechanism 28. See Fig. 5.
Fig. 1 also shows a key projecting or inserted via keyhole 29a at the
exterior side of the door, i.e. opposite from rotary actuator 25, to be
operatively
connected with the first rotary control for moving the deadbolt (as between
extended or locking positions, and a retracted or unlocking position). Also
Fig. 1
shows a second handle or handle lever 32, at the exterior side of the door,
and at
the opposite side of the frame from handle 27. Handle 32 is operatively
connected
with second rotary control mechanism, as is handle 27, to control latch 21
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movement between extended and retracted positions, in response to manual
clown-turning of handle 32, at the exterior side of the door.
Latch movement between extended and retracted positions occurs in
response to turning of either of handles 27 and 32 as effected via compact
secondary cam mechanism 28.
It is a feature of the invention that the door installation may
accommodate either right-handed i.e. clockwise down movement of handle 27
(see arrow 200 in Fig. 36a) to operate the latch, or left-handed i.e.
counterclockwise down movement of handle 27 (see arrow 200a in Fig. 37a) to
operate the latch (i.e. retract it from a latch captivating recess in the door
opening).
This is accomplished with re-setting or re-positioning of only one element,
such as a
selector, i.e. connector pin 201 seen in Figs. 35-37. In other words, the
system
enables selectively handed (right or left) handed turning of a handle for
unlocking
(unlatching) of a door, as at the time of door installation.
As referred to, a drive means includes handle 27 rotatable clockwise
and counterclockwise; a driven means that typically includes a driven part,
such
as linearly movable lock actuating link plate 204, linearly movable in a
primary
direction (see arrow 205) to operate door lock structure; and coupling means
is
provided and includes the handle rotation direction selector pin 201. That pin
has
first and second alternate positions 201a and 201b (see Figs. 36 and 37),
whereby it operates to displace plate 204 in direction 205 in response to
handle
clockwise rotation (see Fig. 36) when the selector pin is in a first position,
and
alternatively it operates to displace 204 in the primary direction 205 in
response to
handle counterclockwise rotation (see Fig. 37) when the pin is in its second
position.
This is accomplished in an efficient, laterally compact, and vertically
longitudinally elongated or disposed positioning of elements, by providing two
vertically elongated coupling racks 208 and 209, one of which is operatively
coupled to the driven part 204 when the handle is turned clockwise (see Fig.
36),
and the other of which is operatively coupled to the driven part 204 when the
handle is rotated counterclockwise (see Fig. 37). Accordingly, the selector
pin or
screw is alternatively coupled to one or the other of the coupling racks, in
such
manner that the non-coupled rack remains inactive when the coupled rack is
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displaced in direction 205 in response to handle rotation. Further, the non-
coupled
rack "floats", i.e. moves upwardly as the selector coupled rack moves
downwardly. See rack teeth 208a and 209a engaging opposite sides of toothed
rotary drive gear 210 rotated by handle 27 via drive cam 230. Pin is manually
positioned in either Fig. 36 or Fig. 37 position, at the time of installation.
It is
received in drilled hole 208b in rack 208, and hole 211b in plate 211; or in
hole
209b in rack 209 and hole 211c in plate 211. In either event, plate 211 is
displaced
downwardly in response to handle turning. Note 211 is coupled to link plate on
member 204.
Plate 211 incorporates a further rack 212 operatively coupled to a
driven spur gear 213, that operates door unlocking mechanism indicated at 216
as
plate 204 moves downwardly, Return springs 218 serve to push plate 204 back
upwardly, and its driving rack (208 or 209) back upwardly returning handle 27
to
horizontal position.
The invention may be efficiently incorporated in the locking
described with reference to Figs. 1 - 33, that comprises
a) a frame having opposite sides, and installable on a door
openable between an interior space and an exterior space,
b) a deadbolt and a door latch carried by the frame to move
between retractable and extended positions,
c) a first rotary control located at one level on the frame to
control deadbolt movement between extended and retracted positions via primary
cam mechanism,
d) a second rotary control, operated by the handle or handles, at
another level on the frame to control latch movement between extended and
retracted positions, via secondary cam mechanism,
e) means operatively connected between the secondary cam
mechanism and the primary cam mechanism to effect deadbolt movement as
aforesaid, in response to operation of the second rotary control, as effected
via
rotary input to the second rotary control from only one side of the frame.
Housing and mounting elements appear at 221-223 in Fig. 35, along
with a mounting plate 224 and a vertical displacement guide 225 for 211.
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