U.S. patent number 3,863,798 [Application Number 05/411,406] was granted by the patent office on 1975-02-04 for push-button-type cap for container.
This patent grant is currently assigned to Kanebo Kabushiki Kaisha, Yoshida Kogyo Kabushiki Kaisha. Invention is credited to Tsuneaki Kurihara, Kenji Saka.
United States Patent |
3,863,798 |
Kurihara , et al. |
February 4, 1975 |
PUSH-BUTTON-TYPE CAP FOR CONTAINER
Abstract
A novel push-button-type cap comprising: an engaging cap member
with elastic means for detachably engaging the receiving means
formed on the circumference of the mouth portion of a container; an
inner cap member having a botton-closed top-open spaced walls
forming a gap for receiving therein said engaging cap member and
having apertures for passing said elastic engaging means
therethrough for enabling the latter means to engage and
disengaging said receiving means of the container mouth; a
top-closed push-button member having a circumferential wall
slidably inserted between the inner cap member and the elastic
engaging means of the engaging cap member to progressively engage
the engaging means as this push-button member is depressed to
release the locking state between the engaging means and the
receiving means of the container mouth; a packing means interposed
between said mouth and said inner cap for blocking the mouth; with
or without spring means facilitating the returning to the normal
position of the push-button member; and with or without an outer
cap member housing the aforesaid member and having an opening to
expose the top of the push-button member.
Inventors: |
Kurihara; Tsuneaki (Tokyo,
JA), Saka; Kenji (Odawara, JA) |
Assignee: |
Kanebo Kabushiki Kaisha (Tokyo,
JA)
Yoshida Kogyo Kabushiki Kaisha (Tokyo, JA)
|
Family
ID: |
27294691 |
Appl.
No.: |
05/411,406 |
Filed: |
October 31, 1973 |
Foreign Application Priority Data
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|
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Nov 6, 1972 [JA] |
|
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47-127232[U] |
May 7, 1973 [JA] |
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48-52636[U]JA |
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Current U.S.
Class: |
215/301;
215/272 |
Current CPC
Class: |
B65D
41/185 (20130101); B65D 55/12 (20130101) |
Current International
Class: |
B65D
41/18 (20060101); B65D 41/02 (20060101); B65D
55/12 (20060101); B65D 55/02 (20060101); B65d
041/02 () |
Field of
Search: |
;215/301,272,279,293,317,337 ;220/6A |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Ross; Herbert F.
Attorney, Agent or Firm: Cushman, Darby & Cushman
Claims
We claim:
1. A push-button-type cap for a container such as a bottle,
comprising in combination:
an engaging cap member having an outer wall with a recess formed at
its lower end and having an elastic engaging means positioned
proximal to said outer wall and normally engaged with a receiving
means formed around a mouth portion of said container,
an inner cap member having an inner member and an outer wall spaced
from said inner member and connected to said inner member at their
lower ends by a coupling member to provide an open-top hollow gap
in which is received said engaging means of the engaging cap
member, the upper portion of said outer wall of the inner cap
member being fit in said recess of the engaging cap member, said
inner member being fit to and covering said mouth portion of the
container and provided with apertures for the passage therethrough
of said engaging means,
a top-closed hollow push-button member with a circumferential wall
slidably inserted between said inner member of said inner cap
member and said engaging means of said engaging cap member for
progressively engaging said elastic engaging means as this button
member is depressed progressively to outwardly urge said engaging
means to release said engaging means from engagement with said
receiving means through said apertures, and
a container-mouth blocking means interposed between said mouth
portion of the container and said inner cap member for blocking the
dispensing open mouth of said container.
2. A push-button-type cap according to claim 1, further
comprising:
a spring means provided beneath said push-button member with one
end contacting the top of this push-button member, and
an outer cap member housing enclosing said inner cap member, said
engaging cap member and said push-button member, and having an open
top through which is exposed the top of said push-button
member.
3. A push-button-type cap according to claim 2, in which said
blocking means is a disk-shaped packing member.
4. A push-button-type cap according to claim 2, in which said
blocking means is a disk-shaped packing member having an elongated
tubular member extending upright from the central portion of this
packing member and protruding through the opening of said inner
member beyond the edge of said opening of the inner member and
being adapted to contact the top of said push-button member when
the latter is depressed.
5. A push-button-type cap according to claim 2, in which said
blocking means is a disk-shaped packing member having an elongated
tubular member extending upright from the central portion of said
packing member and extending through said opening of said inner
member and being adapted to contact the top of said push-button
member when the latter is depressed.
6. A push-button type cap according to claim 3, in which said
elastic engaging means comprises a plural number of spaced legs
depending from predetermined sites of the upper edge of said outer
wall of the engaging cap member, a projection extending proximally
at the lower end of each of said legs, and a downwardly
progressively bulging tapered rib carried on the inner side of each
of said legs, and said inner member has a cylindrical member
extending upright from the central portion of the top of this inner
member to contact the top of the push-button member as the latter
is depressed, and said inner member further has a plural number of
apertures at sites corresponding to the positions of said
projections, and said push-button member has a hollow column
depending downwardly from the closed top of this push-button member
and has a size sufficient for slidably receiving said hollow member
of said inner member, and said spring means is provided around said
hollow column and engages at one end of the top of the push-button
member and at the end the top of said inner cap member.
7. A push-button-type cap according to claim 6, in which said inner
member of the inner cap member has a plurality of spaced
positioning ribs formed at the end portion on the inner side of
this inner member, and said mouth portion of the container has a
plural number of spaced positioning ribs circumferentially thereof
at positions corresponding to the positions of said ribs of the
inner member.
8. A push-button-type cap according to claim 4, in which said
elastic engaging means comprises a plural number of spaced legs
depending from predetermined sites of the upper edge of said outer
wall of the engaging cap member, a projection extending proximally
at the lower end of each of said legs, and a downwardly
progressively bulging tapered rib carried on the inner side of each
of said legs, and said inner member has a hollow cylindrical member
extending upright from the central portion of the top of this inner
member to receive said elongated tubular member of the packing
member, and said inner member further has a plural number of
apertures at sites corresponding to the positions of said
projections, and said push-button member has a hollow column
depending downwardly from the closed top of this push-button member
and has a size sufficient for slidably receiving said hollow
cylindrical member of said inner member, and said spring means is
provided around said hollow column and engages at one end the top
of the push-button member and at the other end the top of said
inner cap member.
9. A push-button-type cap according to claim 8, in which said inner
member of the inner cap member has a plurality of spaced
positioning ribs formed at the end portion on the inner side of
this inner member, and said mouth portion of the container has a
plural number of spaced positioning ribs circumferentially thereof
at positions corresponding to the positions of said ribs of the
inner member.
10. A push-button-type cap according to claim 5, in which said
elastic engaging means comprises a plural number of spaced legs
depending from predetermined sites of the upper edge of said outer
wall of the engaging cap member, a projection extending proximally
at the lower end of each of said legs, and a downwardly
progressively bulging tapered rib carried on the inner side of each
of said legs, and said inner member has a hollow cylindrical member
extending upright from the central portion of the top of this inner
member to receive said elongated tubular member of said packing
member, and said inner member further has a plural number of
apertures at sites corresponding to the positions of said
projections, and said push-button member has a hollow column
depending downwardly from the closed top of this push-button member
and has a size sufficient for slidably receiving said hollow
cylindrical member of said inner member, and said spring means is
housed in said elongated tubular member of the packing member and
engages at one end the top of the push-button member and at the
other end the inner bottom of the packing member.
11. A push-button-type cap according to claim 10, in which said
inner member of the inner cap member has a plurality of spaced
positioning ribs formed at the end portion of the inner side of
this inner member, and said mouth portion of the container has a
plural number of spaced positioning ribs circumferentially thereof
at positions corresponding to the positions of said ribs of the
inner member.
12. A combination of the push-button-type cap according to claim 7
and a container having said mouth portion according to claim 7.
13. A combination of the push-button-type cap according to claiim 9
and a container having said mouth portion according to claim 9.
14. A combination of the push-button-type cap according to claim 11
and a container having said mouth portion according to claim 11.
Description
BACKGROUND OF THE INVENTION
A. Field of the Invention
The present invention pertains to a cap for sealing and covering
the open dispensing mouth of a container such as bottle.
B. Description of the Prior Art
Conventional caps for containers may be divided into the following
two types, i.e., the screw type and the twist type. In each of
these known types, the cap had to be opened or removed from the
mouth of the container by intensively turning the cap either
leftwise or rightwise after nipping the cap between fingers of the
user.
SUMMARY OF THE INVENTION
The present invention, therefore, is intended to drastically
improve the conventional manner of opening or removing caps from
containers of the type described and to provide a cap of a
perfectly new type such that the cap can be released automatically
from its state of locking-engagement with the circumference of the
mouth of the container by a mere depression of the button exposed
at top of the cap, and moreover which can be brought into
locking-engagement with the circumference of the mouth of the
container by a mere depression of the cap as a whole onto the mouth
of the container.
Thus, it is the primary object of the present invention to provide
a new push-button type cap.
More specifically, an object of the present invention is to provide
a cap of the type to be pressed against the mouth portion of a
container such as a bottle to seal and cover the opening of said
mouth, which cap being arranged so that the fixing of this cap to
the mouth portion of the container and the removal of the cap
therefrom can both be accomplished quite easily by the mere
depression of the top region of this cap.
Another object of the present invention is to provide a cap of the
type described, which cap being arranged so that, when it is
intended to remove the cap from the mouth portion of a container to
which it has been fixed, the cap is depressed at its top, whereupon
the cap as a whole disengages the mouth portion of the cap and
lifts itself therefrom as a reactive movement, thus unfailingly
attaining the purpose of removing the cap from the mouth of the
container.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an explanatory perspective view, in exploded fashion, of
the respective component members, partly broken away, of a first
example of the cap embodying the present invention.
FIG. 2A is a sectional view of the cap of FIG. 1 in the state that
its component members are assembled together and that this cap as a
whole is applied to the mouth portion of a container, sealing the
opening of this mouth.
FIG. 2B is a sectional view of the cap of FIG. 2A showing the
relations of the component members as this cap is operated to be
removed from the mouth portion of the container.
FIGS. 3 and 5 are explanatory perspective views, in exploded
fashion, of the caps representing a second example and a third
example of the present invention, respectively, to show the
respective component members, partly broken away.
FIGS. 4A and 4B are sectional views of the cap of said second
example in its state similar to that shown in FIG. 2A and that
shown in FIG. 2B, respectively.
FIGS. 6A and 6B are sectional views of the cap of said third
example in its state similar to FIGS. 4A and 4B, respectively.
Similar members are indicated by similar reference numerals and
letters throughout the drawings.
DESCRIPTION OF PREFERRED EMBODIMENTS
First Example
Referring now to FIG. 1, there is shown a first example of the cap
according to the present invention. In FIG. 1, A represents
generally the mouth portion of a bottle. A ring-like groove 1 is
formed at a predetermined position circumferentially of this mouth
portion A. A plurality of positioning projecting ribs 2 are
provided, in spaced relation with each other, on the circumference
of the stepped portion adjacent to said ring-like groove 1. B
represents generally an engaging cap member having an outer wall
and a relatively broad upper end bank. From a plural number of
predetermined spaced sites of the inner side of this upper end bank
depends downwardly engaging legs 4 each having a projection 3 which
extends proximally at the lowermost end of the leg 4 and which is
adapted to engage in the ring-like groove 1 of this mouth portion A
of the bottle. Each of said legs 4 has a rib 5 formed on the inner
side thereof, said rib 5 having a triangular configuration with the
apex positioned at the upper inner portion of the leg 4 and
broadening, in tapering fashion, as it extends downwardly from said
apex. At the lower end portion of the outer wall of the engaging
cap member B is formed a recess adapted to receive the upper end of
an inner cap member which will be described later. In this first
example, the engaging leg 4 is provided, on the inner side thereof,
with a tapered rib 5. However, depending on the condition required,
the engaging leg 4 may be bent to have a tapered edge, instead of
the provision of said rib 5. C represents generally a packing which
is generally of a disk-like shape and is interposed between the
mouth portion A of the bottle and the inner cap member D which will
be described later.
D represents generally an inner cap member having a tubular outer
wall with a diameter such that this wall can be snugly received in
the recess formed at the lower end of the outer wall of the
engaging cap member B. This inner cap member D also has,
thereinside, an inner tubular member 7 adapted to engage the mouth
portion A of the bottle. Said inner tubular member 7 is coupled
integrally to the tubular outer wall 6 at their lowermost ends by a
coupling member 8. The inner tubular member 7 is spaced from the
tubular outer wall 6 at a distance sufficient for receiving both
the engaging legs 4 and a push-button which will be described
later. Said inner tubular member 7 has, at predetermined sites, a
plural number of apertures 9 corresponding to the projections 3 of
the engaging legs 4 each for receiving said projection 3. Said
inner tubular member 7 has its top portion which is of a dish
shape. A hollow cylindrical member 10 extends upright from the
central portion said dish-shaped top portion. The inner tubular
member 7 has, at the lower end portion of the inner wall thereof, a
plural number of positioning ribs 11 adapted to engage the
positioning ribs 2 of the mouth portion A of the bottle.
E represents generally a push-button having a lower tubular portion
of a larger diameter and an upper tubular portion of a smaller
diameter which are formed on the outer circumference of this
button. This lower tubular portion of the push-button E has an
inner diameter sufficient for being mounted on the inner tubular
member 7 of the inner cap member D and also for vertical sliding
movement around said inner tubular member 7. Furthermore, a hollow
tubular column 12 depends downwardly from the central portion of
the inner side of the top of the push-button E, said column having
an inner diameter sufficient for receiving the hollow cylindrical
member 10 of the inner cap member D. A spring 13 is mounted around
said hollow tubular column 12.
In this first example, there is prepared separately an outer cap
member F, as shown in FIGS. 2A and 2B, for accommodating
thereinside both the inner cap member D and the engaging cap member
B. This outer cap member F has an opening 16 formed in its top for
allowing only the head of the upper tubular portion of the
push-button E to be exposed through said opening 16.
The first example of the cap according to the present invention is
fabricated in the following manner. As will be understood from
FIGS. 2A and 2B, firstly the lower end of the engaging cap member B
is inserted into the space between the inner tubular member 7 and
the tubular outer wall 6 of the inner cap member D until the
engaging cap member B is posted in place in said inner cap member
D. At the same time with this, the projections 3 of the legs 4 of
the engaging cap member B are inserted through the corresponding
apertures 9 of the inner tubular member 7 of the inner cap member D
from the outside of these apertures to protrude inwardly from these
apertures, respectively. Next, the push-button E is mounted onto
the inner tubular member 7 from thereabove. Along with this, the
hollow cylindrical member 10 is inserted in the hollow tubular
column 12 of the push-button E, and also a spring is provided
therearound. Then, the outer cap member F is mounted on the
push-button E from thereabove, thereby accommodating and anchoring,
inside this outer cap member F, both the engaging cap member B and
the inner cap member D to thereby provide an integral assembly of
these component members in such a way that the head of the
push-button E is exposed through the opening 16 of the outer cap
member F. Furthermore, the packing C is mounted onto the lower end
of the top of the inner tubular member 7 of the inner cap member D.
In this way, the cap as a whole is fabricated.
In use, the push-button E which is exposed through the opening 16
of the outer cap member F is depressed downwardly as will be
appreciated by referring to FIGS. 2A and 2B. Whereupon, this
push-button E will progressively move downwardly along the outer
circumferential wall of the inner tubular member 7 of the inner cap
member D while pressing on the spring 13. During this sliding
downward movement of said push-button E, the lower tubular portion
constituting a part of the outer circumferential wall of the
push-button E will progressively engage the tapered ribs 5 of the
engaging legs 4 of the engaging cap member B. Accordingly, these
engaging legs 4 will be urged outwardly progressively by the
push-button E to widen the distance between each substantially
opposing legs 4. Thus, eventually the projections 3 which are
provided at the lowermost ends of the engaging legs 4 will be
caused to be withdrawn completely from the ring-like groove 1 of
the mouth portion A of the bottle. Whereby, the locked state
established till then between the cap and the mouth portion of the
bottle is released. Thus, the cap can now be readily removed from
the mouth portion of the bottle. It will be appreciated that with
the release of the depressing force applied to the push-button E
therefrom, the push-button E will resume its initial position by
the restoring force of the spring 13.
In case it is intended to fix the removed cap onto the mouth
portion A of the bottle, it is only necessary to coercively insert
this mouth portion A into the cavity of the cap. Since the engaging
legs 4 are resilient, these legs 4 are automatically rendered wide
apart relative to each other, respectively. Thus, the mouth portion
A of the bottle is easily received in the cavity of the cap.
Therefore, the mouth portion A of the bottle is brought into the
predetermined position in the inner tubular member 7 of the inner
cap member D. Along therewith, the engaging legs 4 restore their
initial positions so that the projections 3 which are provided at
the lowermost ends thereof are again inserted into the ring-like
groove 1 formed around the mouth portion A of the bottle, thus
completing the locking.
Description will next be made on the second example of the present
invention. This second example provides a mechanism operative so
that, upon the depression of the push-button at the time of
removing the cap off the mouth portion of the bottle, the locked
state is released and at the same time the cap as a whole
reactionarily lifts itself, and thus there is obtained an unfailing
removing action of the cap.
Second Example
As shown in FIGS. 3, 4A and 4B, this instant example also
comprises, as in the first example, the combination of: a mouth
portion A of a bottle having a ring-like groove 1 formed around the
neck of this bottle; an engaging cap member B adapted to engage
said mouth portion A of the bottle; a packing C; an inner cap
member D; a push-button E and an outer cap member F. Among these
component members, it is only the packing C that has a
configuration different from the members of the first example.
Other members are exactly same as those of the first example.
The packing C in the first example has been described as being of a
disk-like shape. In this second example, however, the packing C has
an elongated tube 14 extending upright from the central portion
thereof. A flange 15 is provided around the cental portion of said
elongated tube 14 to prevent this elongated tube 14 from casually
detaching from the inner cap member D. As will be appreciated from
FIGS. 4A and 4B, these respective component members are mounted
together as a combination. One thing which requires attention in
this second example is the relationship between the packing C, the
inner cap member D and the push-button E. More specifically, the
elongated tube 14 of the packing C passes through the top of the
inner cap member D to be inserted into a hollow cylindrical member
10 of this inner cap member D, and extends beyond the open top of
the hollow cylindrical member 10.
In case it is intended to use this second example, the push-button
E is pressed downwardly as shown in FIG. 4B. Whereupon, as
explained in the preceding example, the pushbutton E will
progressively move downwardly along the outer circumference of the
inner tubular member 7 of the inner cap member D while depressing
the spring 13. During this downward movement of the push-button E,
the lower tubular portion of the push-button E engages the tapered
edge-carrying ribs 5 of the engaging legs 4 of the engaging cap
member B. As a result, these engaging legs 4 are caused to extend
their positions apart as they are pushed progressively outwardly by
the push-button E. Accordingly, the projections 3 which are
provided at the lowermost ends of the engaging legs 4 are caused to
escape from the ring-like groove 1 of the mouth portion A of the
bottle, thereby releasing the lock between the cap and said mouth
portion A.
In the preceding first example, as the push-button E is depressed
continuously further, the top of this push-button E will directly
push downwardly the hollow cylindrical member 10 of the inner cap
member D. Therefore, let us suppose that the user depresses the
push-button E by one finger of his hand and tries at the same time
to lift up the outer circumference of the outer cap member F by the
remaining fingers of his hand. However, it is impossible for him to
uplift this outer cap member F because of the fact that this
uplifting force is offset by the force of depressing the
push-button E. Thus, the projections 3 and the ring-like groove 1
which have thus once released of their locked state from each other
will inconveniently be brought into the locked state again as the
depression on the push-button E is removed.
In the second example, however, the depression applied onto the
push-button E will not cause the top of this push-button E to
directly contact the inner cap member D, but instead the top of the
push-button E will depress only the elongated tube 14 of the
packing C. If, therefore, the user depresses the push-button E by
one of his fingers and at the same time uplifts the outer cap
member F by the remaining fingers of his hand, the inner cap member
D which is assembled integrally with the outer cap member F,
together with the engaging cap member B, will readily be lifted up
from the mouth portion A of the bottle. Even when the depression
applied to the push-button E is removed therefrom, the cap will
never be locked again to the mouth portion A of the bottle. Thus,
the removal of the cap is unfailingly accomplished.
Third Example
The third example shown in FIGS. 5, 6A and 6B is of the mechanism
which will exhibit the same function and effect as those by the
Example 2. The only difference from the Second Example is that,
instead of the use of the spring 13, there is provided a spring 18
inside an elongated tube 17 of the packing C. Upon depression of
the push-button E, the packing C is directly pushed downwardly via
the spring 18.
As stated above, the push-button type cap of the present invention
which is described in connection with the foregoing three examples
is operative so that, by a mere depression of the push-button, the
engaging legs having a projection at its lowermost end for engaging
the ring-like groove of the mouth portion of the bottle will be
caused to open the legs apart from each other to release their
locking, enabling the cap as a whole to be removed. On the other
hand, the removed cap can be automatically fixed to the mouth of
the bottle by merely inserting the mouth portion of the bottle into
the cavity of the cap. Thus, the cap of the present invention is
simple and unfailing in operation. Moreover, the projections of the
engaging legs are adapted to engage the ring-like groove of the
mouth portion of the bottle, and therefore, this
engagement-anchoring of the cap can be accomplished without a
failure so that there is no fear for the cap to come off
spontaneously. Moreover, because of the provision of ribs for
effecting relative positioning between the bottle mouth and the
cap, there is the further convenience that the positioning of the
cap to, for example, a container of other type or of a different
shape may be effected also.
In the first and second example, the spring means 13 is housed in
the top-closed push-button member so that one end of this spring
means contact the top of the push-button member and the other end
is supported by the top wall of the inner tubular member 7 of the
inner cap member D as will be noted from FIGS. 2A and 4A. In the
third example, however, the other end of the spring means 18 is
supported by the inner lower end edge of the elongated tube 17.
Description has been made on example wherein a spring means is
provided. It should be noted, however, that the spring means is not
an essential member of the present invention and that the use of
this spring means is intended for causing a smooth returning of the
depressed push-button member to its initial non-depressed
position.
* * * * *