Note: Descriptions are shown in the official language in which they were submitted.
F~LLY AUTOMATIC SINGLE PUSH BUTTON TYPE UMBRELLA
. BACKGROUND OF THE INVENTIO~I .
The present invention relates to a single-push-
button-controlled automatic umbrella and, more
particularly, to an automatic umbrella, the opening and
closing of which is controllable by a push button
device being improved to the operation merely of a
single push button in unidirection.
In the past, several types of automatic umbrella
10 have been disclosed, to cite for example,U.S. Pat. No.
3,856,030 to Sato. In the prior art) the umbrella
employs two push button means for operation of opening
and closing respectively. Such an umbrella is not only
complicated in construction but is also difficult and
troublesome in assembling, and hence of high cos-t. To
obviate these shortcomings of the conventional automatic
umbrel].a, the present inventor discloses in U.S. Pat.
Nos. 4,53~,374 and ~,548,222 a d.iEferent and improved
type of fully au-tomatic umbrella. In operation, the
umbre.lla may be opened by depressing the sinyle push
button in the first stage. Whén the umbrella which has
been opened is next to be closed, the push button now
in its second stage is first slid downwardly and then
depressed. Although the single push button opening and
2S closiny mechanism thus constructed simplifies the
.
operation and construction in an umbrella, nevertheless,
it is still a way from perfection in view of its
:~ .
49
requlrellletll: tllat i.~l operatioll tlle user ' s L~ b ~las to perEorm -two
diE~erent actions. :1l1 aiditl.ollr it may yet be a cause to blame
tha-t a laryer area o~ space has to be provi.ded in -the grip for
pullirlg up and down oE -the push ~UttOII, and also in the spring
pawl formed integrally with the locking head, when used for some
time the resiliency may be efEected as a result o~ res~riction by
!; i ts shape and ma-terial .
The present invention overcomes -the problems associa-ted
wit~l-tlle converltlonal automatic umbre:l.la by ~rov.lding a s.Lnglc
puSh bu-tton type automa-tic umbrellas havlrlg push button system
being more simplified, precise and most easy to operate with.
Thus the invention provides a sin~le push-button
controllable, automatic umbrella in which the slngle push but-ton
is capable of controlling the opening and closing of the umbrella
in sequence in a two-stage manner in a uni-direction by directly
pressing against a locking member in a similar press operation.
: The invention also provides a single-push-button
controllable, automatic umbrella wherein push button means is
mounted directly above the Iocking member thereby simplifying the
construction and reducing khe cost of production, and being
itself occupying relatively less space in the grip and thus
adding tidiness to the external shape of the grip.
The irlvention also provides a single-push button
controllable, automatic umbrella, whose locking member is moun-ted
in the shaEt by a shaft pi.n and a spring means for simpliEying
the construction thereof and for securement in po~ition, and
through the spring means of this single member to ensure delivery
~U of an effective energy of recovery resiliency to the locking
member.
Thus according to the present lnvention thére is provided
an automatically actuated umbrella having a single push
3i
~: - 2 -
~ ,
buttol-l to In:it:iclte e~}~and~ y all~l co~l,a~sill~ operations,
colllprisinc~: outer shaft means i.ncludillcJ an outer tubular
shart and a lower ring fi~eclly attaclled to sa,id outer tubular
shaft, in-termediate shaft means includin~ an :intermediate
-tubular shaEt slidabl~ telescoped with.in said outer tubular
sllaft alld an :intermediate rinc3 aE.rixed to sai.d i,ntermediate
tul~ul.ar sha~t at a locat:ioll above sai.~ outer tubu],ar shaEt,
upper inner sha~t means including an uL~per .i,nller shaft
sli.dably telescoped rel.ative to an uppe~ end of said
intermediate tubular shaft and an upper ring affixed to said
upper inner shaEt at a location above said i.ntermedia-te shaft
means, a lower inner shaft slidably telescoped within a lower
end of,said intermediate tubular shaft, and a rib arrangemen-t
including dome ribs, stretcher ribs, and supporting ribs
having i.nner ends thereoE pivotably connected to said upper
ring, intermediate ring, and~said .l.ower ring, respec-tively,
with outer ends of said stretcher ribs and supporting ribs
being pivotably connected to said dome ribs and stre-tche
ribs, respectively, to form an umbrella frame, said rib
arrangement being movable between expanded and collapsed
positions, first spring means arranged to act be-tween said
.
.
~L2~4~
o~lter alld in-t~:rmediate shaft mea1-ls for moVil-lg said rib
arranyement to sai.d collapsed pOSitiOI1~ second spring means
arranged to act between said lower inner shaft and said upper
lnller shaft means for Moving said rib arranyement -to said
expanded position, said outer tubular shaft, said
intermediate tubular sllaf-t, and said lower inner shaft
including lateral- openings which are laterally alignable,
loclcing pawl means mourlted for movement in sai.d lower inner
shaft, having a lockiny head, and beiny yieldably spri.ng-
biased laterally ou-twardly to a Iocking position wherein said
locking head projects in-to all of said openings when said
openings are laterally aligned, to retain said rib
arrangement in a collapsed positi.on witll said second spring -
means being in an energy-storing state, a grip affixed to a
lower end of said lower inner shaft and including a side wall
- 3a -
,
~,%~
~li.sposed oul.s.k:le oE s.a itl lower :i lulel- sl~ t, said ~Jri.p
includillg a pUSIl bUttOII lllOUnted i.ll saicl si.de wal.l and
yieldably spring-biased lateral]y outwardly, said push button
i.l~ClUd:illy all abutment surface OppOSill(J said locking head and
said aligned openi.ngs, said push button bein~ movable in a
d:irec-tion of actuation -to di.splace said loclcing head inwardly
arl~l out o~ said opening oL said outer tubular s}laft in
respollse to a first inward depression of saicl pusll but-ton to
a first stop posi-tion in engagcmellt wi.tll sai(l outcr tubular
shaft to enable said upper inner shart means and said outer
shaft means to be raised relative to said intermediate shaft
means by said second spring means in a manner expanding said
rib arrangement while causing said first spring means to
store energy, with said locking head remaining within said
opening of said intermediate tubular shaft and retaining said
first spring means in such energy storing state, said push
button being movable in said direction oE actua-tion to
displace said locking head inwardly and out of said opening
of said intermediate tubular sha~t in response to a second
inward depression of said push botton to a second stop
position beyond said first stop position vaca-ted by said
outer tubular shaft upon the raising o~ the latter, said
second stop position defined by engagement of said push
button with said intermediate tubular shaft to enable said
second spring means to ralse said upper inner sha~t means
relative to said outer shaEt means and to enable sald ~irst
spring means to raise said intermedia-te shaft mealls relative
to sai.d upper inller shaEt means ~or collapsing said rib
arrangement.
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~` ~ 3b _
.,
....
~` 129~
l'he present invention provi.des an automaticallyactua-ted umbrella havltly a sinyle push bu-tton to ini-tiate
expanding and collapsing operatlons, compri.sing: a shaft assembly
including a plurality of slidably telescoped shafts, a rib
arrangement pivotably mounted -to said sha~t assembly such that
said rib assembly is disposed in an expand~d state when said
shafts are in a first position relative to one another and
disposed in a collapsed state wherl said sha~ls are in a second
posi-tion relatlve to one another, spring means operably connected
to said shaft assembly for biasing said shaE-ts toward said first
and second positions, said shaft assembly including: an inner
shaft carrying a manual grip, an intermediate shaft slidably
telescoped on said inner shaE-t, and an outer shaft slidably
telescoped on said intermediate shaft, said intermediate, and
outer shafts including alignable lateral openings, and actua-ting
means comprising: locking pawl means mounted for movement in said
inner haft, having a locking head and being yieldabl.y spring-
biased laterally outwardly to a locklng position wherein said
locking head pro~ects in-to said openings when said openings are
laterally aligned, for resisting movement of said outer an
intermediate sha~ts in order to retain said rlb arrangement in a
collapsed state, a push button moun-ted in said yrip and yieldably
- 3c -
~ . ~
spring-biased laterally outwardly, said push button i.ncluding an
abutment surface opposing said pawl and said outer shaft when
said outer and intermediate shafts are re~ained by said lockiny
head, said push button being movable in a direction of actuation
to displace said pawl in a manner moving said locking head
inwardly and out of said opening of said outer shaft in response
to a first inward depression of said push button to a f1rst stop
position against said outer shaft to enable said shaft assembly
to be moved to said first position by said spring means in a
manner raising said outer shaft and expanding said rib
arrangement, with said locking head remaining wlthin said opening
;Iu Of said intermediate shaft in response to a second inward
depression of said push button to a second stop position beyond
said first stop position vacated by said outer shaft upon the
raising of the latter, said second stop position defined by
engagement of said push button with said intermediate shaft to
1~ enable said shaft assembly to be moved to said second position by
said spring means in a manner raisin~ said intermediate shaft and
collapsing said rib arrangement.
Other aspects and advantages of the present invention
2U will become apparent rom the following description of the
preferred embodiment, taken in con~unction with the accompanying .
drawings in which:
FIG. 1 illustrates an umbrella o~ the present lnvention
in partly sectional elevation in the closed and folded state;
FIG. 2 shows the umbrella of FIG. 1 in partly sectional
elevation in the ~ully extended position;
3U FIG. 3 depicts the umbrella in partly sectional
: elevation in a clbsing state from the position as shown in FIG.
2;
. FIG. 4(A) is a sectional view of the portion of the
3~ .
~ 3d -
.
. .
,,,
umbrella taken along the line A-A ln FIG. 3;
FIG. 4(B) is a longitudinal sectional view of portion
of the members shown in FIG. 4(~;
FIG. 5 illustrates a portion of the lower inner shaft
wherein axial slot and opening are shown;
FIG. 6 is an enlarged sectional view of a detail
2U
3U
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3~
- 3e -
. . . ~ .
4~ ~
-- 4
of oueration of the push button mechanism shown in FIG.l;
FIG. 7 is an enlaryed sectional view showing the
operating condition in the push button mechanism; and
FIG. 8 is an illustra-tion depicting the operating
condition in the push button mechanism taken along the
line B-B of FIG~ 7.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
.
The automatic umbrella according to the present
invention comprises, as shown in FIG. l, an outer
tubular shaft l having a lower ring ll ~ixed to the
upper portion thereof, an intermediate tubular shaft 2
having the outer tubular shaft l slidably housed thereto
and an intermediate ring 21 fixed to the upper portion
thereof, a lower inner shaft 3 slidably insertible in
the lower end portion of intermediate ~ubular shaft 2
and a grip 31 mounted to the lower end thereof, an
~: upper inner shaft 4 slidably insertible in the upper
. end portion of intermediate tubular shat.2 and provided;... ...,~... ..
with an upper ring 41 fixed at the middle portion
: 20 thereof, a rib assembly 5 having ends of the ribs
pivotably connected to each of the rings 11, ~l and 41,
an operating push button mounted between the upper
portion of the grip 31 and the lower inner shaft 3, a
first spring means 7 for closing the umbrella and
25: provided on the upper end portion of intermediate
tubular shaft 2 and between the intermediate and- the
low~r rings 21 and ll, and a second spring means 8
:'
.. , ~ . . .. .
-- 5 --
adapted for opening the umbrella being provided in the
intermediate tubular shaft 2 and between -the upper and ?
the lower inner shafts, 4 and 3. .'
While on the upper end of the abovementioned outer
tubular shaft 1 there is formed a side wall of lower
ring 11, on one side wall of the lower end thereof is
defined a rectangular locking opening 12 to allow the
engagement therein of a locking head to be described
hereinafter. The intermediate tubular shaft 2 which
is slidably inserted in the outer tubular shaft 1 is
longer in length than the latter and is provided at
the upper end thereof with an intermediate ring 21
fixed thereto. The inner sides of the upper and the
lower end portions of the shaft 2 are further f,ormed
with at least one, preferably two,'according to the
present embodiment, symmetrically and inwardly guide
convex portions 22, 22 as shown in FIGS~ 4(A) ancl 4(B).
.... .... ..
In operation', said ~wo convex portions 22, 22 preven-t' " '''":'""' ''
the upper and the lower inner shafts 3, 4 Erom ro-taking
inside the intermediate shaft 2 and also act as guide-
projection when the two inner shafts 3, 4 are sli~ing
up and down therein. Furthermore, an opening 23 is
defined on one side wall o~ the intermediate shaf-t 2
at the lower end thereof and located between the two
convex portions 22, 22 to allow the enlarged head 92
of the locking pawl 9, whlch will be described herein-
after, to be engaged therein. Both the lower and the
': '
~%~ 9
upper inner shafts, 3, and 4, are defined with at least
one, but preferably, two symmetrically arranged guide-
grooves 32, 42 as illustrated in EIGS. 4(~) and 4(B).
The upper portion of the lower inner shaft 3 is glidably
inserted in the lower portion.of intermediate shaft 2
and prevents the intermediate shaft 2 from escaping
out upwardly from the lower lnner shaft 3. This guide-
groove 32 of lower inner shaft 3 is formed at the upper
end with a check shoulder 321 (that is, a guide-groove
32 is not defined therein). The lower end of upper
inner shaft 4 is slidably inserted in the upper end
pvrtion of intermediate tubular shaft 2, while the
convex portions 22, 22 formed respectively at the
upper and the lower end:portions of intermediate shaft
.2 ~re engaged respectively. in the guide-grooves 42, 32
~;~ of the upper and the lower inner shafts 4~ 3 in order
~ to impede rotation inside the intermediate shaft 2 by
; the two inner shaEts 4, 3. The grip 31 is fixedly
mounted to the lower end portion of lower inner shaft
3 by a fixed pin 33 provided therewith, and on the
upper end of said grip 31 is formed a sleeve member 35
having an oblong opening 34 being deflned on one side
face thereof. This opening 34 of the sleeve member
receives therein an operating push button 6 having its
upper end protruding out of the opening. The push
button 6 is resiliently and slidably re-tained in the
~ opening 34 by a return spring 64 mounted in the buttom
,~ ~
,, ., ,,, ~ .. .. . . .
34~
chereof and having the top portion abutting against
- : the inner waL1 o~ sleeve member 35 and by a bottom
flanye 65, and at the lower edge of the huttom of which
is further provided a bevel face 6.7 for use in release.
A locking pawl 9 is pivotably mounted in the inside of
lower inner shaft 3 by a shaft pin 93~ The enlarged
head 92 formed at the upper end of said locking pawl
projects out from the front end outer portion of an
elongated slot 38 being formed on the inner shaft 3
and on one side of said upper end is disposed a return
spring 97 engaginy the inner circumference of inner
shaf~ 3 in order to enable the locking pawl 9 to be
returned and sprung out of the slot 3~ and openings 23
and 12. At the upper end of lower inner shaft 3 there
is provided a smalL spring pawl 95, the lockiny head
96 oE which projects out from an opening 30 being
defined in said inner shaft 3 and is capable of moviny
. . . ., . . . . ,, .. , ., ~; .. .....
into the openings 23 and 12 in the inner sha~t 2 and
outer tubular shaft 1 and being engaged therein as
shown in E'IG. 3. In additionr an upper ring 41 is
mounted in slightly the middle portion of the upper
inner shaEt 4, the upper end of which is screwed with
a cap 43.
As illustrated in FIGS. 6 through 8, inside the
oblong opening 34 of grip 31, the bottom face 66 of
push button 6 is located just above the locking head
92 and between the upper and lower édges of the two
:i .
-- 8 ~
openlngs, 12 and 13. During operation of the push
,blltton in opening of the umbrella, when the locking !~ ',$~ ;'
head 92 has been pressed down by the push button 6, the
bottom face of said push button 6, which just lies
across the edge tops 121 at the two sides of the
opening 12, will upon reaching the outer circumference
of intermediate shaft 2 press against the locking head
92 and force the latter to be disengaged from the
opening 12, and ~can not be depressed any more. Again,
in operation of the push button for closing the
umbrella,when the locking head 92 is being pressed
down by the push button 6, this push button 6, being
located now at the place of the opening 23 in the
: intermediate shaft, will upon reaching the outer
circumference of inner shaf-t 3 by its bottom face 66
force the lock.ing head 92 to be completely disengaged
from the opening 23.
...... .. .... . . . . . . . . . . ... ... ......... ...
The rib assembly 5 includes usually 8 to 10 dome
; ribs 51, a same number of stretcher ribs 52 and a same
number oE supporting ribs 530 One end of each dome
r.ib 51 is pivokably mounted to the upper ring 41 while
the other end thereof remains Eree and the middle
portion thereof is, on the other hand, provided with
a pivot member 54 adapted to connect pivotably with
one end of the stretcher rib 52, the other end of which
is again pivotably mounted to the intermediate ring
21. The m~iddle portion of the stretcher rib 52 is
~ . . - .
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- 9 -
likewise provided with a pivot member 55 ad~pted to
. connec-t pivotably with one end of the suppor-ting rib 5
while the other end thereof being pivotabLy mounted
to the lower ring ll. When the umbrella is in a,closed
position, the coil spring 7 disposed between the
intermediate ring 21 and the lower ring ll is in its
freely extended condition as shown in FIG. 1. Under
the same condition when the umbrella is in the closed
position, the coil spring 8 disposed in the intermediate
shaft 2 between the upper and the lower inner shafts 4,
~ is, on the other hand, in its compressed condition
and tends to urge the upper and the lower inner shafts
4, 3 upward and downward respectively. However, since
the intermediate shaft 2 and outer sha~-t 1 are all
locked by the enlarged head 92 of locking pawl 9 at
this time, the coil springs 7, 8 are thus unable to
pull apart the intermediate shaft 2 and the outer
~,,,, , ,,,, ,, ,, , , , .... , .. :
shat l, and the upper inner shaft 4 and lower inner
shaft 3.
In operation, when the automatic umbrella of the
invention is in the fully closed position as shown in
FIG. 1, the rib assembly 5 is completely collapsed, the
coil spring 7 is in the released and fully extended
: condition and the coil spring 8 is being compressed
25 thereby accumulating elastic energy. In this positionr
both the immediate and the outer shafts 2, l and the
: : lower inner shaft 3 are locked in engagement by the
~Z9~
-- 10 --
enlarged head 92 thereby maintaining the umbrella in
the closed condition. Again, the push button 6 is
located above the opening 34 in a position as depicted`
in FIG. 6, whereas the bottom face 66 of which ia
placed slightly above the enlarged head 92 In the
process of opening the umhrella from its presently
closed position, the push button 6 is first depressed
whereby said push button 6 in against the resilient
force of the springs, 64 and 97, will immedia-tely press
upon the enlarged head 92 such that the latter will
come down. In this way, the enlarged head 92 is
released from the opening 12 of outer shaft 1 and falls
into the opening 23 of intermediate shaft 2 thereby
releasing the outer shaft 1 and by which thus permits
lS said outer shaft 1 to be slid out. Thereafter, when push
but-ton 6 is released, said push but~n will immediately r^-turn to
its original position by the return spring 64 and alfio by the bevel-
faced portion 67 at the bottom thereof, being slid out
of the edges of opening 12 and urged toward3 the above.
In -the meantime, because the push button 6 has been
arranged in such a way that when it reaches the outer
circumference of intermediaté shaft 2, the botton will
be blocked instantly by the edye tips at -the two sides
of the opening 23 of intermediate shaft 2 and thus can
not be pressed downward any further, that is, the
enlarged head 92 will still be engaging in the opening
23 of intermediate shaft 2, thereby forming a two-stage
.,,, ~, ,
control ~eans and maintainlny the intermediat0 sha~-t 2
an.~ the lower i~ner shaf-t 3 in the original engaginy
position. Owing to the upward extension force of the
coil spring 8, the outer shaft 1 being released from
the engaging position now will force the upper inner
shaft 4 to move upward wi-th respect to the intermediate
shaft 2 and consequently, the.upper ring 41 will also
be moving upward along with the upper inner shaft 4.
Although the dome ribs 51 which are pivotably mounted
at one end to the ring 41 will now tend to ~ove upward
along with the latter, however because of the mid
portions of ribs 51 being pivotably connected to the
stretcher ribs 52 having one ends thereof pivotabLy
mounted to the immediate ring 21 and said intermediate
ring 21 being, in turn, held immovabLy in position in
the intermediate shaft 2, consequently these dome ribs
51 wiLl spread out gradually through the ascending of
: the upper ring 41 and the upward movement of the
stretcher ribs 52-with the pivot joint oE the inter-
mediate ring 21 a~ the center. Simultaneously,
ollowing the upward movement oE the stretcher .ribs 52
by the supporting ribs 53 pivo-tably connected thereto
and throuyh -the intermediary oE lower ring ll, these
stretcher ribs 52 in against the sprlng force of coil
spriny 7 pull the outer shaft l upward with respect
~: to -the intermediate shaft 2. Following the ascending
of this outer shaft 2, the coil spring 7 disposed
, .
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, .. .. ..
- 12 -
between the intermediate and the lower rings 21, 11 is
also compressed thereby accumulating elastic ~nergy - - -
for use next in the closing of the umbrella. The coil
spring 7 is now fully compressed and a~ain the inter-
S mediate ring 21 remains un-moving, thereby permit~ing
the ribs, 52 and 53, respectively of the intermediate
and the lower rings 21, 11 to form irltc an un-moving
rigid body, which even if the ribs 51 are under the
upward pulling force of the upper ring 41, is unable to
move upwardly. The coil spring 8 is, however, in a
partially extended position now when there i5 still
maintained some extension forces and therefore prevent
the upper ring 42 from moving downwardly, while the
same strength thus keeps the ribs Sl, 52 and 53 to be
an un-moving framework and which can hardly be down-
wardl~ pivotable. In this way, the urnbrella is now
opened completely in a ~ully extended.state as shown
.. . . . .. ~ ..
in FIG. 2 to be ready or use.
When the umbrella which has been opened is next
to be clo~ed, all khat is required to do is to depress
the push button, as illustrated in FIG. 6, ln against
the spring ~orce of the springs 64, g7, which in turn
presses upon the enlarged head 92, and sald enlaryed
head 92 is immediately dlsengaged from the opening 23
of intermediate shaft 2. Although the coil spring 8
still has a kendency of urging the lower inner shaft 3
to move downward, thak is, to push said lower inner
- 13 -
shaft outward, nevertheless, since the grip 31 is
firmly held in the UQer~s hand, this lower inner
shaft 3 will not move~ The extension force of the ,'
coil spring 8 acts instead on the upper inner shaft 4
which is made to slide upward with relation to the
intermediate shaft 2 and tends to bring the ribs 51 to
be closed thereby. Meanwhile, as the intermediate
shaft 2 is now in a freely slidable state, the coil
spring 7 by its extension force and through the inter-
mediary of the intermedia-te shaft 21 urges the inter-
; mediate shaft ~ to move upward and the outer shaft 1
downward. When the intermediate shaft 2 is ascending,
the outer shaft 1 relative to said intermediate shaft 2
moves downwardly till the projection of intermediate
shaft 2 has been engaged ln the,guide-channel check
' shoulder 321. Now, since both the oute:r and the
intermdiate shafts 1, 2 have the openings 12, 23 thereof
'" . : ''' ' being engaged to'the locking head 96 and are thus no,t
upwardly movable, the movement of these sha~ts 2, 1 .
causes the rib assembly 5 to be turned down to the
closiny position. As a result, the down rib~ 51 are
collapsqd and folded together through the linked
movement of the stretcher and the' supporting ribs 52,
; : 53 and the respective rings 11, 21 and 41 and, until
both coil springs, 7 and 8, are in their fully extended
:
and substantially unstressed condition and the rib
assembly 5 is completly ~olded to the,condition as shown
,,
~, . .. .
- 14 -
in FIG. 3. As a next and final step of the seria~ of
operakion, the shaft is contracted by holding -the
umbrella down against the ground or any hard,surfaces
and applying compression force ak the oppos1`te end of
the shaft, i.e., at the upper inner shaft 4 and the
grip 31, in opposing thé extension force o~ the coil
spring 8. As the co~pression force is being applied,
khe lower inner shaft 3 will be inserted deeply into
the in-termediate shaft and the coil spring 8 wil] also
be compressed causing now the outer and the intermediate
shaft l, 2 to be engaged therein by the 'ocking head 96
of spring pawl 95 when, both the shafts 2, l will be
held together with the lower inner shaft 3 as a single
body. By now, the compression force of the first coil
spring 1 has weakened and is in a free and released
state whereas the second coil spring 8 is in a
- - compressed position, whereby energy to be consume~ ~or
; automaticaLly closing umbrella after it has been opened
-~- - -. is accumulated.
As described above, in accordance with the present
invention, there is provided an umbrella the operation
of openiny and closing of which can be controlled in
sequence merely by a single push bukkon in a uni-
directional manner. Again, owing to the two~stage
:
type actu;ating construction in the umbrella, such
conventional drawbacks, as pressing of a wrong push
button, can be avoided since a user will not in any way
.
.
- 15 -
perform an actuating action for closing the umbrella
béEore it has been opened. Furthermore, because oE the
simple actuating control in a unidirectional fashion,
the umbrella of the invention can be used with yreater
convenience and since construction of khe single push
button control according to the present invention is
even simpler than those of the conventional ones and
the -type previously disclosed by the presen-t inventor
and also the push button control occupies less space
on the umbrella grip, this will not only render the
manufacture and assembly work easler and reduce the
cost of production, but can also make possible a neat
and esthetic design of the grip.
, The foregoing is a description of the preferred
embodiment of the invention and it should be understood
that changes and variations may be made there-to without
departing from the true spirit of the invention as
defined in,the appended claims.
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~: ~25
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