CA2491577A1 - Cap for beverage-container - Google Patents
Cap for beverage-container Download PDFInfo
- Publication number
- CA2491577A1 CA2491577A1 CA 2491577 CA2491577A CA2491577A1 CA 2491577 A1 CA2491577 A1 CA 2491577A1 CA 2491577 CA2491577 CA 2491577 CA 2491577 A CA2491577 A CA 2491577A CA 2491577 A1 CA2491577 A1 CA 2491577A1
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- Canada
- Prior art keywords
- engagement
- lock button
- stopper
- cover member
- plug member
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- Abandoned
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 210000002445 nipple Anatomy 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 210000003813 thumb Anatomy 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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- Closures For Containers (AREA)
- Thermally Insulated Containers For Foods (AREA)
Abstract
The lock mechanism is provided on the opposite side of the hinge of the cap. The lock mechanism comprises: the engagement portion formed on the cover member; the tilting-type lock button pivotably supported by the axial member so as to pivot to the inward and outward directions of the plug member, the axial member being provided on the outer-surface side of the plug member;
and the sliding-type stopper slidably provided on the periphery-wall of the plug member. The lock button includes: the engagement member being able to be engaged with the engagement portion; and the first biasing means biasing the engagement member toward a direction for the engagement member to be engaged with the engagement portion. The sliding-type stopper includes: the stopper portion regulating a movement of the lock button toward a direction for releasing a lock of the lock button upon inserted in between a bottom portion of the lock button and the periphery-wall of the plug member; and the protrusion member holding the sliding-type stopper at a position where the stopper portion is inserted and another position where the stopper portion is not inserted.
and the sliding-type stopper slidably provided on the periphery-wall of the plug member. The lock button includes: the engagement member being able to be engaged with the engagement portion; and the first biasing means biasing the engagement member toward a direction for the engagement member to be engaged with the engagement portion. The sliding-type stopper includes: the stopper portion regulating a movement of the lock button toward a direction for releasing a lock of the lock button upon inserted in between a bottom portion of the lock button and the periphery-wall of the plug member; and the protrusion member holding the sliding-type stopper at a position where the stopper portion is inserted and another position where the stopper portion is not inserted.
Description
CAP FOR BEVERAGE-CONTAINER
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to a cap for various kinds of beverage-containers such as a portable thermos bottle, a canteen, a bottle of sport drink, or the like. In particular, the present invention relates to a cap for a beverage-container which can allow its cover to be opened through its "one-touch operation" when used.
Description of the Related Art As an example of conventional technique, Japanese Unexamined Patent Publication No. 2003-212258 discloses a cap for a beverage-container which comprises: a plug member attached to an aperture of an upper portion of a container body; and a cover member openably and closably connected to the plug member via a hinge and liquid-tightly covering a liquid-passage-hole being provided in a top panel of the plug member, wherein a lock mechanism, which maintains the closed-condition of the cover member and releases this closed-condition, is provided on the opposite side of the hinge.
The lock mechanism comprises: a tilting-type lock button provided on the plug member; a latching ring; an engagement portion formed on the cover member and engaged with the lock button; and a latching rib for locking the latching ring. The engagement portion of the cover pivoted to a closed-position is engaged with the lock button, and the latching rib is hung with the latching ring, whereby a closed-condition of the cover member is maintained. In contrast, when the cover member is to be opened, the latching ring retained at the latching rib is released, and a lower-end side of the lock button is pushed so as to release the engagement of the lock button and the engagement portion, whereby the cover member is biased toward a direction for opening by a biasing means.
In the above-described technique, however, when the cover member is to be opened or closed, first, the latching ring is needed to be released from the latching rib, or the latching rib is needed to be hung with the latching ring, and thus the opening or closing of the cover member takes time. Moreover, because the latching rib and the latching ring are provided adjacent to the lock button, a cap has an unattractive contour. Further, the latching ring is easily to be gotten stuck on things around it, and thus it is likely to be released from the latching rib accidentally SUMMARY OF THE INVENTION
The present invention has been made to solve those problems. It is, accordingly, an object of the present invention to provide a cap for a beverage-container which can allow the opening or closing of the cover member to be carried out easily, have a fine design and reliably maintain the closed-condition of the cover member.
In order to attain the above objects, according to a first aspect of the present invention, there is provided a cap for a beverage-container which comprises: a plug member attached to an aperture of an upper portion of a container body; a cover member openably and closably connected to the plug member via a hinge, the cover member liquid-tightly covering a liquid-passage-hole, the liquid-passage-hole being provided in a top panel of the plug member; a locking mechanism provided on an opposite side of the hinge, the locking mechanism maintaining a closed-condition of the cover member and releasing the closed-condition thereof, wherein: the lock mechanism comprises:
an engagement portion provided on a freely movable end of the cover member; a lock button pivotably supported by an axial member so as to pivot to inward and outward directions of the plug member, the axial member being provided on an outer-surface side of the plug member; a sliding-type stopper slidably provided on a periphery-wall of the plug member; the lock button includes: an engagement member being able to be engaged with the engagement portion; and a first biasing means biasing the engagement member toward a direction for the engagement member to be engaged with the engagement portion; the sliding-type stopper includes: a stopper portion regulating a movement of the lock button toward a direction for releasing a lock of the lock button upon inserted in between a bottom portion of the lock button and the periphery-wall of the plug member; and a latching member holding the sliding-type stopper at a position where the stopper portion is inserted and another position where the stopper portion is not inserted.
According to the first aspect of the present invention, the lock button and the engagement portion of the cover member is engaged with each other, the sliding-type stopper is slid upwardly, an upper portion of the stopper is inserted in between the bottom portion of the lock button and the periphery-wall of the container body, whereby the movement of the lock button is regulated, and thus the closed-condition of the cover member can be positively maintained.
Moreover, the lock button is slid downwardly, the bottom portion of the lock button is pushed inwardly, whereby the engagement of the lock button and the engagement portion of the cover member is released, and thus the cover member can be easily opened. The sliding-type stopper and the lock button can be operated by one thumb only, and thus the cover member 6 can be easily opened and closed. Moreover, a contour of the cap can be simple, and thus it can have a fine design.
Alternatively, in the above-described cap, the lock button may be tapered so that an upper surface thereof which contacts the engagement portion inclines toward an inward direction of the plug member or an outward direction thereof.
Moreover, the above-described cover member may further comprise a second biasing means biasing the cover member toward a direction for being opened.
BRIEF DESCRIPTION OF THE DRAWINGS
These objects, other objects and advantages of the present invention will become more apparent upon reading of the following detailed description and the accompanying drawings in which:
FIG. 1 is a cross sectional view illustrating major portions of a cap according to a first embodiment of the present invention in a condition that a cover member of the cap is closed;
FIG. 2 is a cross sectional view illustrating the major portions of the cap of FIG. 1 in a condition that the cover member is opened;
FIG. 3 is a front view illustrating the major portions of the cap of FIG. 1 in a condition that a sliding-type stopper is slid upwardly;
FIG. 4 is a front view illustrating the major portions of the cap of FIG. 1 in a condition that the sliding-type stopper is slid downwardly; and FIG. 5 is a cross sectional view illustrating major portions of a cap according to a second embodiment of the present invention in a condition that a cover member of the cap is closed.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Preferred embodiments that the present invention is applied to a portable thermos bottle will now be described in detail with reference to the accompanying drawings. FIGS. 1 to 4 illustrate a first embodiment of the present invention, while a thermos bottle 1 comprises a container body 2 made from metal, and a synthetic-resin-made cap 3 attached to an aperture of an upper portion of the container body 2. The cap 3 comprises: a plug member 4; a cover member 6 openably and closably connected to the plug member 4 via a hinge 5, and liquid-tightly covering a liquid-passage-hole 4b being provided in a top panel 4a of the plug member 4. A lock mechanism 7, which maintains the closed-condition of the cover member 6 and releases this condition, is provided on an opposite side of the hinge 5. The container body 2 employs a heat-insulating double-walled structure that edges of apertures of upper portions of an internal cylinder 2a and an external cylinder 2b are connected with each other into a single piece, while an evacuated heat-insulating layer 2c is defined in between the internal and external cylinders 2a, 2b. On the periphery of the upper portion of the external cylinder 2b, a male thread 2d for fitting the plug member 4 in a screwing manner, is formed.
The lock mechanism 7 comprises: an engagement portion 8 provided on an outer surface of a freely movable end of the cover member 6 relative to and end connected to the hinge 5; a tilting-type lock button 10 whose intermediate portion is pivotably supported by an axial member 9 provided on a periphery portion of the plug member 4 so as to pivot toward an inward or outward direction of the plug member 4; and a sliding-type stopper 11 slidably provided on an periphery-wall of the plug member 4.
An inner surface of an upper portion of the lock button 10 is formed with an engagement groove 12, while the engagement portion 8 can be engaged with the engagement groove 12. An upper-end surface l0a is tapered so as to incline toward the inward direction of the plug member 4. Moreover, a spring 13 ( a first biasing means) biasing the engagement groove 12 toward a direction for the engagement portion 8 to be engaged therewith is compressed and provided in between a rear surface of the lock button 10 downward of the axial member 9 and the plug member 4.
The sliding-type stopper 11 is provided in a manner that it enables to slide upwardly and downwardly while guided by a guide rib 14 provide on a periphery of the plug member 4 in a protrusion manner. The stopper 11 has a stopper portion lla, while the stopper portion 11a regulates a movement of the lock button 10 toward a direction for releasing a locking thereof when it is inserted in between a bottom portion of the lock button 10 and the periphery-wall of the plug member 4. A knob llb is provided on a periphery of the stopper 11 in a protrusion manner. On a rear surface of the sliding-type stopper 11, a protrusion portion llc (latching member) is provided so as to hold the stopper at a position where the stopper portion 11a is inserted and another position where the stopper portion lla is not inserted.
s The plug member 4 is formed in a reversed cylindrical shape with a bottom that the top panel 4a covering the upper aperture of the container body is provided on an upper surface of a cylindrical portion 4c surrounding a periphery of an upper portion of the external cylinder 2b. A female thread 4d for fitting the male thread 2d in a screwing manner is formed on an inner surface of the cylindrical portion 4c. On one side of the cylindrical portion 4c, the guide rib 14 is provided in a protrusion manner. The plug member 4 has an upper protrusion portion 4e and bottom protrusion portion 4f respectively holding the stopper 11 at the position where the stopper portion 11 is inserted and another position where the stopper 11 is not inserted with the protrusion portion 11c engaged. On one side of the top panel 4a, a nipple 15 is formed, while on the other side of the top panel 4a, a hinging rib 16 as a structure portion of the hinge is provided in a protrusion manner. The nipple 15 has a proper diameter that a user can put the nipple 15 into his/her mouth from the top panel 4a, and it is formed in a substantial circular cylinder shape in a protrusion manner having a height to be covered with the cover member 6. An interior thereof works as the liquid-passage-hole 4b.
The cover member 6 comprises: a cylindrical portion 6a consequtively arranged on an upward of the cylindrical portion 4c of the plug member 4; and a top panel 6b closing an upper surface of the cylindrical portion 6a, and thus its is formed in a reversed cylindrical shape with a bottom. One side thereof where the lock mechanism 7 is located is taller than the other side thereof, while the other side where the hinge 5 is located is formed in a shorter, inclined shape. In the cylindrical portion 6a, the engagement portion 8 as one structure portion of the lock mechanism 7 is provided on a periphery-side of a bottom surface of the freely movable end thereof in a protrusion manner. A bottom surface of a leading-edge-side of the engagement portion 8 is tapered so that a periphery-side thereof rises. On the other side of the cover member 6, a pair of arms as one structure portion of the hinge 5, and a tooth 6c for maintaining the opened-condition of the cover member 6, are formed. On an inner side of the top panel 6b, a packing 17 and an elastic member (a second biasing means) are provided. The packing 17 is formed in a spherical surface shape having larger diameter than that of the nipple 15, while it elastically contacts an upper-end surface of the nipple 15 so as to liquid-tightly plug the nipple 15 when the cover member 6 is closed. The elastic member 18 is made of, for instance, a soft synthetic resin such as silicon, a non-metallic material such as rubber or the like, while it is formed in a cylindrical shape with a bottom. The elastic member 18 is attached to the cover member 6 by fitting its aperture portion into a cylindrical boss formed on an inner surface of the top panel 6b in a protrusion manner. A
length of the elastic member 18 is designed so that a bottom end thereof contacts the top panel 4a of the plug member 4 when the cover member 6 is at a position slightly higher than a position where the cover member 6 is closed. When the cover member 6 is closed, the elastic member 18 is compressed in its axial direction. Moreover, when the closed-condition of the cover member 6 is released by the lock mechanism 7, the elastic member 18 expands in its axial direction so as to push the cover member 6 in a direction for being opened.
The hinge 5 is structured that the hinging rib 16 of the plug member 4 is sandwiched by the pair of arms of the cover member 6 and a hinge shaft 19 is passed through them, while the cover member 6 is openably and closably attached to an upper portion of the plug member 4 via the hinge 5. On a periphery of the hinging rib 16, an engagement rib 16a is provided, while the tooth portion 6c of the top panel 6b is engaged with the engagement rib 16c, whereby the cover member 6 can be held at an opened-position where the cover member 6 is opened greater than or equal to 180 degree.
Next, operation of the thermos bottle 1 structured as described above will now be explained in detail.
When the cover member 6 in the opened-condition is pushed toward a direction for being closed, the engagement portion 8 of the cover member 6 comes down with its tapered leading-edge-side bottom surface 8a guided by the tapered upper-end surface 10a of the lock button 10. Accordingly, an upper portion of the lock button 10 is pivoted toward an outside of the plug member 4, the engagement portion 8 is engaged with the engagement groove 12, and the upper portion of the lock button 10 is biased toward the inside of the plug member 4 by the spring 13, whereby the engagement of the engagement portion 8 and the engagement groove 12 can be held, and thus the cover member 6 can be easily closed.
Next, the sliding-type stopper 11 is slid upwardly, the stopper portion lla is inserted in between the bottom portion of the lock button 10 and the periphery-wall of the container body 2, while the protrusion portion llc is engaged with the upper protrusion portion 4e formed on the cylindrical portion 4c.
Accordingly, the pivot movement of the lock button 10 is regulated, while the engagement condition of the engagement portion 8 and the engagement groove 12 can be reliably maintained since the position where the stopper portion 11a is inserted is maintained by the engagement of the protrusion portion llc and the upper protrusion portion 4e. Therefore, the cover member 6 does not open accidentally In a case that a user drinks liquids with the cover member 6 opened, the stopper 11 is slid downwardly, the stopper portion lla is released from the bottom portion of the lock button 10 and the periphery-wall of the container body 2, while the stopper portion lla is positioned at the downward of the bottom protrusion portion 4f. The bottom portion of the lock button 10 is pressed inwardly against an elastic force of the spring 13, while the upper portion of the lock button 10 is pivoted outwardly so as to release the engagement of the engagement portion 8 and the engagement groove 12. Accordingly, the cover member 6 is biased toward the direction for being opened by an elastic force of the elastic member 18, thereby being opened. The cover member 6 is locked by the engagement of the tooth 6c and the engagement rib 16a, and thus the upward of the plug member 4 can be opened. The stopper 11 can be slid by, for instance, moving the knob llb upwardly or downwardly with a thumb of a user, while the pressing of the lock button 10 can be carried out by the thumb only, whereby the cover member 6 can be easily opened.
Moreover, since a latching ring is not provided as the conventional technique, the cover member 6 can be easily and reliably opened or closed through its one-touch operation, while a contour of the cap 3 can be simple, and thus it can have a fine design.
FIG. 5 illustrates a second embodiment of the present invention. The same reference numbers will denote the same structure portions as those of the first embodiment, while detailed explanations thereof will be omitted. A lock mechanism 20 according to the second embodiment comprises: an engagement portion 21 provided on the inner surface of the freely movable end of the cover member 6; a tilting-type lock button 23 whose bottom portion is pivotably supported by an axial member 22 provided on a periphery portion of the plug member 4 so as to pivot toward the inward or outward direction of the plug member 4; and a sliding-type stopper 24 slidably provided on the periphery-wall of the plug member 4.
The engagement portion 21 is provided on the inner surface of the freely movable end in a protrusion manner, while a bottom surface of a leading-edge-side 21a thereof is tapered so that a periphery-side thereof falls.
The lock button 23 has an outer surface of its upper portion formed with an engagement member 25 in a protrusion manner, while the engagement portion 21 can be engaged with the engagement member 25 or released therefrom. An upper end surface 25a of the engagement member 25 is tapered so as to fall outwardly Moreover, on a bottom of the engagement member 25, an inclined surface 25b is formed so that the engagement portion 21 is accommodated without protruding from the periphery of the container body 2. A spring 26 biasing the engagement member 25 toward a direction for the engagement portion 21 to be engaged therewith is compressed and provided in between a rear surface of the lock button 23 upward of the axial member 22 and the plug member 4.
The sliding-type stopper 24 is provided in a manner that it enables to slide upwardly and downwardly while guided by a guide rib 14 provide on the periphery of the plug member 4 in a protrusion manner. The stopper 24 has a stopper portion 24a, while the stopper portion 24a regulates a movement of the lock button 23 toward a direction for releasing a locking thereof when it is inserted in between a bottom portion of the lock button 23 and the periphery-wall of the plug member 4. A knob 24b is provided on a periphery of the stopper 24 in a protrusion manner. On a rear surface of the sliding-type stopper 24, a protrusion portion 24c is provided so as to hold the stopper 24 at a position where the stopper portion 24a is inserted and a position where the stopper portion 24a is not inserted.
In the above-described lock mechanism 20, when the cover member 6 in the opened-condition is pushed toward a direction for being closed, the engagement portion 21 of the cover member 6 comes down with its tapered leading-edge-side bottom surface 21a guided by the tapered upper-end surface 25a of the lock button 23. Accordingly, an upper portion of the lock button 23 is pivoted toward the inside of the plug member 4, the leading-edge-side bottom surface 21a and the inclined surface 25b come in contact with each other, the engagement portion2l is engaged with the engagement member 25, and the upper portion of the lock button 23 is biased toward the outside of the plug member 4 by the spring 26, whereby the engagement of the engagement portion 21 and the engagement member 25 can be held, and thus the cover member 6 can be easily closed.
Next, the sliding-type stopper 24 is slid upwardly, the stopper portion 24a is inserted in between the bottom portion of the lock button 23 and the periphery-wall of the container body 2, while the protrusion portion 24c is engaged with the upper protrusion portion 4e formed on the cylindrical portion 4c.
Accordingly, the pivot movement of the lock button 23 is regulated, while the engagement-condition of the engagement portion 21 and the engagement member 25 can be reliably maintained since the position where the stopper portion 24a is inserted is maintained by the engagement of the protrusion portion 24c and the upper protrusion portion 4e. Therefore, the cover member 6 does not open accidentally In a case that a user drinks liquids with the cover member 6 opened, the stopper 24 is slid downwardly, the stopper portion 24a is released from the bottom portion of the lock button 23 and the periphery-wall of the container body 2, and the protrusion portion 24c is positioned at the downward of the bottom protrusion portion 4~ A portion of the lock button 23 slightly above the axial member 22 is pressed inwardly against an elastic force of the spring 26, while the upper portion of the lock button 23 is pivoted inwardly so as to release the engagement of the engagement portion 21 and the engagement 25.
Various embodiments and changes may be made thereonto without departing from the broad spirit and scope of the present invention. The above-described embodiments are intended to illustrate the present invention, not to limit the scope of the present invention. The scope of the present invention is shown by the attached claims rather than the embodiments.
Various modifications made within the meaning of an equivalent of the claims of the present invention and within the claims are to be regarded to be in the scope of the present invention.
For instance, in the above-described embodiments, the present invention is applied to a portable thermos bottle, but it may be applied to all kinds of beverage-containers except one that a user can directly drink liquids.
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to a cap for various kinds of beverage-containers such as a portable thermos bottle, a canteen, a bottle of sport drink, or the like. In particular, the present invention relates to a cap for a beverage-container which can allow its cover to be opened through its "one-touch operation" when used.
Description of the Related Art As an example of conventional technique, Japanese Unexamined Patent Publication No. 2003-212258 discloses a cap for a beverage-container which comprises: a plug member attached to an aperture of an upper portion of a container body; and a cover member openably and closably connected to the plug member via a hinge and liquid-tightly covering a liquid-passage-hole being provided in a top panel of the plug member, wherein a lock mechanism, which maintains the closed-condition of the cover member and releases this closed-condition, is provided on the opposite side of the hinge.
The lock mechanism comprises: a tilting-type lock button provided on the plug member; a latching ring; an engagement portion formed on the cover member and engaged with the lock button; and a latching rib for locking the latching ring. The engagement portion of the cover pivoted to a closed-position is engaged with the lock button, and the latching rib is hung with the latching ring, whereby a closed-condition of the cover member is maintained. In contrast, when the cover member is to be opened, the latching ring retained at the latching rib is released, and a lower-end side of the lock button is pushed so as to release the engagement of the lock button and the engagement portion, whereby the cover member is biased toward a direction for opening by a biasing means.
In the above-described technique, however, when the cover member is to be opened or closed, first, the latching ring is needed to be released from the latching rib, or the latching rib is needed to be hung with the latching ring, and thus the opening or closing of the cover member takes time. Moreover, because the latching rib and the latching ring are provided adjacent to the lock button, a cap has an unattractive contour. Further, the latching ring is easily to be gotten stuck on things around it, and thus it is likely to be released from the latching rib accidentally SUMMARY OF THE INVENTION
The present invention has been made to solve those problems. It is, accordingly, an object of the present invention to provide a cap for a beverage-container which can allow the opening or closing of the cover member to be carried out easily, have a fine design and reliably maintain the closed-condition of the cover member.
In order to attain the above objects, according to a first aspect of the present invention, there is provided a cap for a beverage-container which comprises: a plug member attached to an aperture of an upper portion of a container body; a cover member openably and closably connected to the plug member via a hinge, the cover member liquid-tightly covering a liquid-passage-hole, the liquid-passage-hole being provided in a top panel of the plug member; a locking mechanism provided on an opposite side of the hinge, the locking mechanism maintaining a closed-condition of the cover member and releasing the closed-condition thereof, wherein: the lock mechanism comprises:
an engagement portion provided on a freely movable end of the cover member; a lock button pivotably supported by an axial member so as to pivot to inward and outward directions of the plug member, the axial member being provided on an outer-surface side of the plug member; a sliding-type stopper slidably provided on a periphery-wall of the plug member; the lock button includes: an engagement member being able to be engaged with the engagement portion; and a first biasing means biasing the engagement member toward a direction for the engagement member to be engaged with the engagement portion; the sliding-type stopper includes: a stopper portion regulating a movement of the lock button toward a direction for releasing a lock of the lock button upon inserted in between a bottom portion of the lock button and the periphery-wall of the plug member; and a latching member holding the sliding-type stopper at a position where the stopper portion is inserted and another position where the stopper portion is not inserted.
According to the first aspect of the present invention, the lock button and the engagement portion of the cover member is engaged with each other, the sliding-type stopper is slid upwardly, an upper portion of the stopper is inserted in between the bottom portion of the lock button and the periphery-wall of the container body, whereby the movement of the lock button is regulated, and thus the closed-condition of the cover member can be positively maintained.
Moreover, the lock button is slid downwardly, the bottom portion of the lock button is pushed inwardly, whereby the engagement of the lock button and the engagement portion of the cover member is released, and thus the cover member can be easily opened. The sliding-type stopper and the lock button can be operated by one thumb only, and thus the cover member 6 can be easily opened and closed. Moreover, a contour of the cap can be simple, and thus it can have a fine design.
Alternatively, in the above-described cap, the lock button may be tapered so that an upper surface thereof which contacts the engagement portion inclines toward an inward direction of the plug member or an outward direction thereof.
Moreover, the above-described cover member may further comprise a second biasing means biasing the cover member toward a direction for being opened.
BRIEF DESCRIPTION OF THE DRAWINGS
These objects, other objects and advantages of the present invention will become more apparent upon reading of the following detailed description and the accompanying drawings in which:
FIG. 1 is a cross sectional view illustrating major portions of a cap according to a first embodiment of the present invention in a condition that a cover member of the cap is closed;
FIG. 2 is a cross sectional view illustrating the major portions of the cap of FIG. 1 in a condition that the cover member is opened;
FIG. 3 is a front view illustrating the major portions of the cap of FIG. 1 in a condition that a sliding-type stopper is slid upwardly;
FIG. 4 is a front view illustrating the major portions of the cap of FIG. 1 in a condition that the sliding-type stopper is slid downwardly; and FIG. 5 is a cross sectional view illustrating major portions of a cap according to a second embodiment of the present invention in a condition that a cover member of the cap is closed.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Preferred embodiments that the present invention is applied to a portable thermos bottle will now be described in detail with reference to the accompanying drawings. FIGS. 1 to 4 illustrate a first embodiment of the present invention, while a thermos bottle 1 comprises a container body 2 made from metal, and a synthetic-resin-made cap 3 attached to an aperture of an upper portion of the container body 2. The cap 3 comprises: a plug member 4; a cover member 6 openably and closably connected to the plug member 4 via a hinge 5, and liquid-tightly covering a liquid-passage-hole 4b being provided in a top panel 4a of the plug member 4. A lock mechanism 7, which maintains the closed-condition of the cover member 6 and releases this condition, is provided on an opposite side of the hinge 5. The container body 2 employs a heat-insulating double-walled structure that edges of apertures of upper portions of an internal cylinder 2a and an external cylinder 2b are connected with each other into a single piece, while an evacuated heat-insulating layer 2c is defined in between the internal and external cylinders 2a, 2b. On the periphery of the upper portion of the external cylinder 2b, a male thread 2d for fitting the plug member 4 in a screwing manner, is formed.
The lock mechanism 7 comprises: an engagement portion 8 provided on an outer surface of a freely movable end of the cover member 6 relative to and end connected to the hinge 5; a tilting-type lock button 10 whose intermediate portion is pivotably supported by an axial member 9 provided on a periphery portion of the plug member 4 so as to pivot toward an inward or outward direction of the plug member 4; and a sliding-type stopper 11 slidably provided on an periphery-wall of the plug member 4.
An inner surface of an upper portion of the lock button 10 is formed with an engagement groove 12, while the engagement portion 8 can be engaged with the engagement groove 12. An upper-end surface l0a is tapered so as to incline toward the inward direction of the plug member 4. Moreover, a spring 13 ( a first biasing means) biasing the engagement groove 12 toward a direction for the engagement portion 8 to be engaged therewith is compressed and provided in between a rear surface of the lock button 10 downward of the axial member 9 and the plug member 4.
The sliding-type stopper 11 is provided in a manner that it enables to slide upwardly and downwardly while guided by a guide rib 14 provide on a periphery of the plug member 4 in a protrusion manner. The stopper 11 has a stopper portion lla, while the stopper portion 11a regulates a movement of the lock button 10 toward a direction for releasing a locking thereof when it is inserted in between a bottom portion of the lock button 10 and the periphery-wall of the plug member 4. A knob llb is provided on a periphery of the stopper 11 in a protrusion manner. On a rear surface of the sliding-type stopper 11, a protrusion portion llc (latching member) is provided so as to hold the stopper at a position where the stopper portion 11a is inserted and another position where the stopper portion lla is not inserted.
s The plug member 4 is formed in a reversed cylindrical shape with a bottom that the top panel 4a covering the upper aperture of the container body is provided on an upper surface of a cylindrical portion 4c surrounding a periphery of an upper portion of the external cylinder 2b. A female thread 4d for fitting the male thread 2d in a screwing manner is formed on an inner surface of the cylindrical portion 4c. On one side of the cylindrical portion 4c, the guide rib 14 is provided in a protrusion manner. The plug member 4 has an upper protrusion portion 4e and bottom protrusion portion 4f respectively holding the stopper 11 at the position where the stopper portion 11 is inserted and another position where the stopper 11 is not inserted with the protrusion portion 11c engaged. On one side of the top panel 4a, a nipple 15 is formed, while on the other side of the top panel 4a, a hinging rib 16 as a structure portion of the hinge is provided in a protrusion manner. The nipple 15 has a proper diameter that a user can put the nipple 15 into his/her mouth from the top panel 4a, and it is formed in a substantial circular cylinder shape in a protrusion manner having a height to be covered with the cover member 6. An interior thereof works as the liquid-passage-hole 4b.
The cover member 6 comprises: a cylindrical portion 6a consequtively arranged on an upward of the cylindrical portion 4c of the plug member 4; and a top panel 6b closing an upper surface of the cylindrical portion 6a, and thus its is formed in a reversed cylindrical shape with a bottom. One side thereof where the lock mechanism 7 is located is taller than the other side thereof, while the other side where the hinge 5 is located is formed in a shorter, inclined shape. In the cylindrical portion 6a, the engagement portion 8 as one structure portion of the lock mechanism 7 is provided on a periphery-side of a bottom surface of the freely movable end thereof in a protrusion manner. A bottom surface of a leading-edge-side of the engagement portion 8 is tapered so that a periphery-side thereof rises. On the other side of the cover member 6, a pair of arms as one structure portion of the hinge 5, and a tooth 6c for maintaining the opened-condition of the cover member 6, are formed. On an inner side of the top panel 6b, a packing 17 and an elastic member (a second biasing means) are provided. The packing 17 is formed in a spherical surface shape having larger diameter than that of the nipple 15, while it elastically contacts an upper-end surface of the nipple 15 so as to liquid-tightly plug the nipple 15 when the cover member 6 is closed. The elastic member 18 is made of, for instance, a soft synthetic resin such as silicon, a non-metallic material such as rubber or the like, while it is formed in a cylindrical shape with a bottom. The elastic member 18 is attached to the cover member 6 by fitting its aperture portion into a cylindrical boss formed on an inner surface of the top panel 6b in a protrusion manner. A
length of the elastic member 18 is designed so that a bottom end thereof contacts the top panel 4a of the plug member 4 when the cover member 6 is at a position slightly higher than a position where the cover member 6 is closed. When the cover member 6 is closed, the elastic member 18 is compressed in its axial direction. Moreover, when the closed-condition of the cover member 6 is released by the lock mechanism 7, the elastic member 18 expands in its axial direction so as to push the cover member 6 in a direction for being opened.
The hinge 5 is structured that the hinging rib 16 of the plug member 4 is sandwiched by the pair of arms of the cover member 6 and a hinge shaft 19 is passed through them, while the cover member 6 is openably and closably attached to an upper portion of the plug member 4 via the hinge 5. On a periphery of the hinging rib 16, an engagement rib 16a is provided, while the tooth portion 6c of the top panel 6b is engaged with the engagement rib 16c, whereby the cover member 6 can be held at an opened-position where the cover member 6 is opened greater than or equal to 180 degree.
Next, operation of the thermos bottle 1 structured as described above will now be explained in detail.
When the cover member 6 in the opened-condition is pushed toward a direction for being closed, the engagement portion 8 of the cover member 6 comes down with its tapered leading-edge-side bottom surface 8a guided by the tapered upper-end surface 10a of the lock button 10. Accordingly, an upper portion of the lock button 10 is pivoted toward an outside of the plug member 4, the engagement portion 8 is engaged with the engagement groove 12, and the upper portion of the lock button 10 is biased toward the inside of the plug member 4 by the spring 13, whereby the engagement of the engagement portion 8 and the engagement groove 12 can be held, and thus the cover member 6 can be easily closed.
Next, the sliding-type stopper 11 is slid upwardly, the stopper portion lla is inserted in between the bottom portion of the lock button 10 and the periphery-wall of the container body 2, while the protrusion portion llc is engaged with the upper protrusion portion 4e formed on the cylindrical portion 4c.
Accordingly, the pivot movement of the lock button 10 is regulated, while the engagement condition of the engagement portion 8 and the engagement groove 12 can be reliably maintained since the position where the stopper portion 11a is inserted is maintained by the engagement of the protrusion portion llc and the upper protrusion portion 4e. Therefore, the cover member 6 does not open accidentally In a case that a user drinks liquids with the cover member 6 opened, the stopper 11 is slid downwardly, the stopper portion lla is released from the bottom portion of the lock button 10 and the periphery-wall of the container body 2, while the stopper portion lla is positioned at the downward of the bottom protrusion portion 4f. The bottom portion of the lock button 10 is pressed inwardly against an elastic force of the spring 13, while the upper portion of the lock button 10 is pivoted outwardly so as to release the engagement of the engagement portion 8 and the engagement groove 12. Accordingly, the cover member 6 is biased toward the direction for being opened by an elastic force of the elastic member 18, thereby being opened. The cover member 6 is locked by the engagement of the tooth 6c and the engagement rib 16a, and thus the upward of the plug member 4 can be opened. The stopper 11 can be slid by, for instance, moving the knob llb upwardly or downwardly with a thumb of a user, while the pressing of the lock button 10 can be carried out by the thumb only, whereby the cover member 6 can be easily opened.
Moreover, since a latching ring is not provided as the conventional technique, the cover member 6 can be easily and reliably opened or closed through its one-touch operation, while a contour of the cap 3 can be simple, and thus it can have a fine design.
FIG. 5 illustrates a second embodiment of the present invention. The same reference numbers will denote the same structure portions as those of the first embodiment, while detailed explanations thereof will be omitted. A lock mechanism 20 according to the second embodiment comprises: an engagement portion 21 provided on the inner surface of the freely movable end of the cover member 6; a tilting-type lock button 23 whose bottom portion is pivotably supported by an axial member 22 provided on a periphery portion of the plug member 4 so as to pivot toward the inward or outward direction of the plug member 4; and a sliding-type stopper 24 slidably provided on the periphery-wall of the plug member 4.
The engagement portion 21 is provided on the inner surface of the freely movable end in a protrusion manner, while a bottom surface of a leading-edge-side 21a thereof is tapered so that a periphery-side thereof falls.
The lock button 23 has an outer surface of its upper portion formed with an engagement member 25 in a protrusion manner, while the engagement portion 21 can be engaged with the engagement member 25 or released therefrom. An upper end surface 25a of the engagement member 25 is tapered so as to fall outwardly Moreover, on a bottom of the engagement member 25, an inclined surface 25b is formed so that the engagement portion 21 is accommodated without protruding from the periphery of the container body 2. A spring 26 biasing the engagement member 25 toward a direction for the engagement portion 21 to be engaged therewith is compressed and provided in between a rear surface of the lock button 23 upward of the axial member 22 and the plug member 4.
The sliding-type stopper 24 is provided in a manner that it enables to slide upwardly and downwardly while guided by a guide rib 14 provide on the periphery of the plug member 4 in a protrusion manner. The stopper 24 has a stopper portion 24a, while the stopper portion 24a regulates a movement of the lock button 23 toward a direction for releasing a locking thereof when it is inserted in between a bottom portion of the lock button 23 and the periphery-wall of the plug member 4. A knob 24b is provided on a periphery of the stopper 24 in a protrusion manner. On a rear surface of the sliding-type stopper 24, a protrusion portion 24c is provided so as to hold the stopper 24 at a position where the stopper portion 24a is inserted and a position where the stopper portion 24a is not inserted.
In the above-described lock mechanism 20, when the cover member 6 in the opened-condition is pushed toward a direction for being closed, the engagement portion 21 of the cover member 6 comes down with its tapered leading-edge-side bottom surface 21a guided by the tapered upper-end surface 25a of the lock button 23. Accordingly, an upper portion of the lock button 23 is pivoted toward the inside of the plug member 4, the leading-edge-side bottom surface 21a and the inclined surface 25b come in contact with each other, the engagement portion2l is engaged with the engagement member 25, and the upper portion of the lock button 23 is biased toward the outside of the plug member 4 by the spring 26, whereby the engagement of the engagement portion 21 and the engagement member 25 can be held, and thus the cover member 6 can be easily closed.
Next, the sliding-type stopper 24 is slid upwardly, the stopper portion 24a is inserted in between the bottom portion of the lock button 23 and the periphery-wall of the container body 2, while the protrusion portion 24c is engaged with the upper protrusion portion 4e formed on the cylindrical portion 4c.
Accordingly, the pivot movement of the lock button 23 is regulated, while the engagement-condition of the engagement portion 21 and the engagement member 25 can be reliably maintained since the position where the stopper portion 24a is inserted is maintained by the engagement of the protrusion portion 24c and the upper protrusion portion 4e. Therefore, the cover member 6 does not open accidentally In a case that a user drinks liquids with the cover member 6 opened, the stopper 24 is slid downwardly, the stopper portion 24a is released from the bottom portion of the lock button 23 and the periphery-wall of the container body 2, and the protrusion portion 24c is positioned at the downward of the bottom protrusion portion 4~ A portion of the lock button 23 slightly above the axial member 22 is pressed inwardly against an elastic force of the spring 26, while the upper portion of the lock button 23 is pivoted inwardly so as to release the engagement of the engagement portion 21 and the engagement 25.
Various embodiments and changes may be made thereonto without departing from the broad spirit and scope of the present invention. The above-described embodiments are intended to illustrate the present invention, not to limit the scope of the present invention. The scope of the present invention is shown by the attached claims rather than the embodiments.
Various modifications made within the meaning of an equivalent of the claims of the present invention and within the claims are to be regarded to be in the scope of the present invention.
For instance, in the above-described embodiments, the present invention is applied to a portable thermos bottle, but it may be applied to all kinds of beverage-containers except one that a user can directly drink liquids.
Claims (3)
1. A cap for a beverage-container comprising: a plug member attached to an aperture of an upper portion of a container body; a cover member openably and closably connected to said plug member via a hinge, said cover member liquid-tightly covering a liquid-passage-hole, said liquid-passage-hole being provided in a top panel of said plug member; a locking mechanism provided on an opposite side of said hinge, said locking mechanism maintaining a closed-condition of said cover member and releasing the closed-condition thereof, wherein:
said lock mechanism comprises: an engagement portion provided on a freely movable end of said cover member; a lock button pivotably supported by an axial member so as to pivot to inward and outward directions of said plug member, said axial member being provided on an outer-surface side of said plug member; a sliding-type stopper slidably provided on a periphery-wall of said plug member;
said lock button includes: an engagement member being able to be engaged with said engagement portion; and a first biasing means biasing said engagement member toward a direction for said engagement member to be engaged with said engagement portion; and said sliding-type stopper includes: a stopper portion regulating a movement of said lock button toward a direction for releasing a lock of said lock button upon inserted in between a bottom portion of said lock button and the periphery-wall of said plug member; and a latching member holding said sliding-type stopper at a position where said stopper portion is inserted and another position where said stopper portion is not inserted.
said lock mechanism comprises: an engagement portion provided on a freely movable end of said cover member; a lock button pivotably supported by an axial member so as to pivot to inward and outward directions of said plug member, said axial member being provided on an outer-surface side of said plug member; a sliding-type stopper slidably provided on a periphery-wall of said plug member;
said lock button includes: an engagement member being able to be engaged with said engagement portion; and a first biasing means biasing said engagement member toward a direction for said engagement member to be engaged with said engagement portion; and said sliding-type stopper includes: a stopper portion regulating a movement of said lock button toward a direction for releasing a lock of said lock button upon inserted in between a bottom portion of said lock button and the periphery-wall of said plug member; and a latching member holding said sliding-type stopper at a position where said stopper portion is inserted and another position where said stopper portion is not inserted.
2. The cap according to claim 1, wherein said lock button is tapered so that an upper surface thereof contacting said engagement portion inclines toward an inward direction of said plug member or an outward direction thereof.
3. The cap according to claim 1, wherein said cover member further comprises a second biasing means biasing said cover member toward a direction for being opened.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004001846A JP2005193944A (en) | 2004-01-07 | 2004-01-07 | Stopper of drink container |
| JP2004-001846 | 2004-01-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2491577A1 true CA2491577A1 (en) | 2005-07-07 |
Family
ID=34737113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2491577 Abandoned CA2491577A1 (en) | 2004-01-07 | 2004-12-31 | Cap for beverage-container |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2005193944A (en) |
| CN (1) | CN1636835B (en) |
| CA (1) | CA2491577A1 (en) |
| TW (1) | TW200523177A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD873605S1 (en) | 2017-10-05 | 2020-01-28 | Sistema Plastics Limited | Bottle cap |
| USD930428S1 (en) | 2018-09-26 | 2021-09-14 | Sistema Plastics Limited | Bottle |
| US11396408B2 (en) | 2019-08-05 | 2022-07-26 | Yeti Coolers, Llc | Lid for container |
Families Citing this family (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5109430B2 (en) * | 2007-03-26 | 2012-12-26 | タイガー魔法瓶株式会社 | Beverage container |
| JP5170399B2 (en) * | 2008-03-04 | 2013-03-27 | オルゴ株式会社 | Portable liquid container |
| JP4651688B2 (en) * | 2008-03-19 | 2011-03-16 | スケーター株式会社 | Cap device for beverage containers |
| JP5007749B2 (en) * | 2010-02-18 | 2012-08-22 | サーモス株式会社 | Beverage container |
| US8360258B2 (en) | 2010-11-15 | 2013-01-29 | Pacific Market International, Llc | Beverage container closure |
| US10421587B2 (en) | 2010-11-15 | 2019-09-24 | Pacific Market International, Llc | Beverage container closure |
| JP5310704B2 (en) * | 2010-11-19 | 2013-10-09 | サーモス株式会社 | Beverage container stopper body |
| JP5387608B2 (en) * | 2011-04-05 | 2014-01-15 | タイガー魔法瓶株式会社 | Open bottle |
| JP5774907B2 (en) * | 2011-05-24 | 2015-09-09 | ポーラ化成工業株式会社 | Hinge cap for container |
| JP3171651U (en) * | 2011-08-30 | 2011-11-10 | 株式会社ドウシシャ | Beverage container stopper and beverage container having the same |
| EP2755529B1 (en) | 2011-09-13 | 2018-11-14 | Ignite USA, LLC | Seal mechanism for beverage container |
| US9908687B2 (en) | 2011-11-15 | 2018-03-06 | Ignite Usa, Llc | Travel beverage container |
| US8844762B2 (en) * | 2011-11-15 | 2014-09-30 | Ignite Usa, Llc | Travel beverage container |
| US8978923B2 (en) | 2011-12-05 | 2015-03-17 | Pacific Market International, Llc | Beverage container closure with venting |
| JP2013148633A (en) * | 2012-01-17 | 2013-08-01 | Sharp Corp | Stereoscopic display device and display method for stereoscopic display device |
| JP5430689B2 (en) * | 2012-01-27 | 2014-03-05 | サーモス株式会社 | Beverage container closure |
| US8689989B2 (en) * | 2012-02-28 | 2014-04-08 | Thermos L.L.C. | Drink bottle and lid with button release at back of lid |
| US9150335B2 (en) | 2012-02-28 | 2015-10-06 | Thermos L.L.C. | Beverage container system with button release for lid |
| JP5466284B1 (en) * | 2012-11-19 | 2014-04-09 | サーモス株式会社 | Beverage container closure |
| JP3182568U (en) * | 2012-12-13 | 2013-04-04 | ヨンカン シュンタイ インダストリアル カンパニー、リミテッド | Self-locking cup |
| US9113698B2 (en) | 2013-03-15 | 2015-08-25 | Camelbak Products, Llc | Drink containers and cap assemblies |
| JP6185279B2 (en) | 2013-05-02 | 2017-08-23 | サーモス株式会社 | Beverage container closure |
| JP5650284B1 (en) * | 2013-07-05 | 2015-01-07 | サーモス株式会社 | Beverage container hinge structure |
| US9462904B2 (en) | 2013-09-03 | 2016-10-11 | Ignite Usa, Llc | Travel beverage container |
| CA2936355A1 (en) | 2014-01-22 | 2015-07-30 | Ignite Usa, Llc | Travel beverage container |
| JP5955890B2 (en) * | 2014-06-09 | 2016-07-20 | サーモス株式会社 | Beverage container closure |
| US9282838B2 (en) | 2014-07-01 | 2016-03-15 | Pacific Market International, Llc | Lockable beverage container closure |
| JP6152158B2 (en) * | 2015-11-17 | 2017-06-21 | タケヤ化学工業株式会社 | Portable beverage bottle |
| JP2017218218A (en) * | 2016-06-10 | 2017-12-14 | 大日本印刷株式会社 | Opening/closing container |
| KR20180001886A (en) * | 2016-06-28 | 2018-01-05 | 주식회사 락앤락 | Locking apparatus and cap having the same |
| CN107878912B (en) * | 2016-09-30 | 2021-12-07 | 上海宏晨家庭用品有限公司 | Container cover opened and closed by adopting rotary embedding mode |
| JP6886709B2 (en) * | 2018-02-06 | 2021-06-16 | 株式会社リングスター | Lock structure of storage container |
| KR102444634B1 (en) * | 2022-05-03 | 2022-09-19 | 주식회사 한주글로벌 | water bottle cap |
| GB2621452A (en) * | 2022-06-14 | 2024-02-14 | Aydya Ltd | Cap assembly for use with a food container |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2196608Y (en) * | 1993-12-09 | 1995-05-10 | 刘占青 | Top-opening type bottle cap |
| TWM244854U (en) * | 2000-09-27 | 2004-10-01 | Nippon Oxygen Co Ltd | Cork for soft drink container |
| JP3937428B2 (en) * | 2002-01-18 | 2007-06-27 | サーモス株式会社 | Inner cap for beverage containers |
-
2004
- 2004-01-07 JP JP2004001846A patent/JP2005193944A/en active Pending
- 2004-12-02 TW TW93137157A patent/TW200523177A/en unknown
- 2004-12-27 CN CN 200410104642 patent/CN1636835B/en active Active
- 2004-12-31 CA CA 2491577 patent/CA2491577A1/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD873605S1 (en) | 2017-10-05 | 2020-01-28 | Sistema Plastics Limited | Bottle cap |
| USD930428S1 (en) | 2018-09-26 | 2021-09-14 | Sistema Plastics Limited | Bottle |
| US11396408B2 (en) | 2019-08-05 | 2022-07-26 | Yeti Coolers, Llc | Lid for container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1636835B (en) | 2010-06-09 |
| TWI321117B (en) | 2010-03-01 |
| JP2005193944A (en) | 2005-07-21 |
| TW200523177A (en) | 2005-07-16 |
| CN1636835A (en) | 2005-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |