JP3620042B2 - Beverage container closure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a stopper for a beverage container of a type in which a lid is opened with one touch to directly drink a beverage in a container body.
[0002]
[Prior art]
For example, a stopper disclosed in Japanese Patent Laid-Open No. 9-299253 includes a cylindrical drinking mouth member that is detachably attached to a mouth portion of a container body, and a drinking mouth that is coupled to the drinking mouth member via a hinge shaft. A lid member that opens and closes the upper opening of the mouth member, a spring that biases the lid member in the opening direction, and a lock that is provided at a position facing the hinge shaft of the mouthpiece member and holds the lid member in a closed state A liquid injection passage is formed in the mouthpiece member between the inlet opening in the container body and the outlet from the upper opening. When the locking member is pressed, the lid member opens, and the stopper can be attached directly to the upper opening peripheral wall of the drinking mouth member to drink the beverage in the container.
[0003]
[Problems to be solved by the invention]
However, in the structure described above, since the inlet diameter of the liquid injection passage is large, especially when riding on a vehicle and tilting the container body, the beverage in the container may flow out in large quantities due to vibrations, etc. There is. In addition, when a hot beverage is put in the container, the inlet area of the injection passage is large, so the pressure applied to the inner plug of the lid member that closes the inlet increases, and the lid member vigorously presses the lock member. It may jump up and down. Furthermore, in order to cope with the pressure applied to the lid member, strength and accuracy of the lock member are required.
[0004]
Therefore, an object of the present invention is to provide a beverage container stopper in which a large amount of beverage in the container does not flow out and the lid member does not jump up vigorously even when hot beverage is placed in the container.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention provides a cylindrical drinking mouth member that is detachably attached to a mouth portion of a container body, and an upper opening of the drinking mouth member that is coupled to the drinking mouth member via a hinge shaft. A lid member that opens and closes the lid member, a spring that biases the lid member in the opening direction, and a lock member that is provided at a position facing the hinge shaft of the drinking mouth member and holds the lid member in a closed state. In the stopper of the beverage container, the mouthpiece member includes a mouthpiece formed on the lock member side of the upper opening peripheral wall, a bottom wall having a lower mouthpiece side and a higher hinge shaft side, and the hinge shaft of the bottom wall. A sealing member that has a liquid passage hole formed on a drinking mouth side on a line connecting the lock member and an air hole formed on a hinge shaft side, and the lid member seals the liquid passage hole and the air hole. It has the internal stopper provided with. Moreover, it is preferable that the uppermost edge of the drinking mouth is formed at the uppermost position of the upper peripheral wall of the drinking mouth member.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment in which the present invention is applied to a stopper for a beverage container having a metal double heat insulation structure will be described in more detail with reference to the drawings. A beverage container 1 of a size that can be held with one hand is composed of a container body 2 having a heat insulating structure and a plug body 3 that is detachably attached to the mouth of the container body 2. The container body 2 is formed by integrally joining the upper ends of a metal inner container 21 and an outer container 22 that are open at the top, and has a heat insulating portion 23 having a vacuum heat insulating structure between both the containers 21 and 22. Further, a screw portion 24 for screwing the stopper 3 is formed on the outer periphery of the mouth portion of the container body 2.
[0007]
The stopper 3 includes a cylindrical drinking mouth member 4 that is detachably attached to the mouth portion of the container main body 2, and a lid member 6 that opens and closes the upper opening of the drinking mouth member 4. The mouthpiece member 4 includes a stopper receiving part 41 formed in a bottomed cylindrical shape, and an attachment part 42 to the container body 2 to which the stopper receiving part 41 is assembled. The lid member 6 is coupled to one side of the mounting portion 42 via a hinge shaft 5 and is biased in the opening direction by a torsion spring 7 wound around the hinge shaft 5. The torsion spring 7 has a spring force that rotates the lid member 6 180 degrees or more from the closed state and holds the lid member 6 at that position. In addition, a lock member 8 that locks the tip of the lid member 6 and holds the lid member 6 in a closed state is provided at a position facing the hinge shaft 5 of the mounting portion 42 in the radial direction.
[0008]
The stopper receiving part 41 has a drinking mouth 43 formed on the lock member 8 side of the upper opening peripheral wall with the peripheral wall on the lock member 8 side made higher than the peripheral wall on the hinge shaft 5 side. The uppermost edge of the drinking mouth 43 is formed at the uppermost position of the upper peripheral wall. In addition, a bottom wall 44 is provided on the inner side of the lower part of the trunk portion, and the bottom wall 44 is lower on the drinking mouth 43 side and higher on the hinge shaft 5 side. The bottom wall 44 is formed with a liquid passage hole 45 on the drinking spout 43 side on the line connecting the hinge shaft 5 and the lock member 8 and an air hole 46 on the hinge shaft 5 side. A liquid channel 47 is formed between the openings. Further, a packing 48 is provided on the outer periphery of the lower part of the body part so as to be in close contact with the inner peripheral wall of the mouth of the container body 2. A screw portion 49 that is screwed into the screw portion 24 of the container body 2 is formed on the inner periphery of the attachment portion 42.
[0009]
The lid member 6 includes a lid portion 61 that covers the upper opening of the plug body receiving portion 41, and an inner plug 62 that is provided on the lid portion 61 and is inserted into the liquid flow path 47. A member 63 is provided. The seal member 63 includes an outflow side seal portion 64 that is in close contact with the inner peripheral wall near the upper opening of the liquid flow path 47, an inflow side seal portion 65 that seals the liquid passage hole 45 from above, and the air hole 46 from above. An air hole seal portion 66 to be sealed is integrally formed. A locking claw 67 that is locked to the lock member 8 and an engagement piece 68 that engages the lock ring 81 of the lock member 8 are formed at the tip of the lid portion 61.
[0010]
The lock member 8 has a locking portion 82 at the upper portion and a pushing portion 83 at the lower portion, and is supported rotatably by a horizontal support shaft 84 provided at the intermediate portion at the attachment portion 42. The locking portion 82 is normally urged in the closing direction by the wound spring 85.
[0011]
When the plug body 3 configured in this manner is pushed inward in the radial direction from the closed state shown in FIG. 2, the locking portion 82 of the lock member 8 opens radially outward. The engagement between the locking portion 82 and the locking claw 67 of the lid member 6 is released, and the lid member 6 is rotated upward by the urging force of the torsion spring 7 as shown in FIGS. By opening and attaching the lips to the drinking mouth 43 and tilting the beverage container 1, it is possible to drink the beverage in the container body 2 directly from the liquid through hole 45 through the drinking mouth 43.
[0012]
At this time, since the uppermost edge of the drinking mouth 43 is formed at the uppermost position of the upper peripheral wall of the plug receiving portion 41, the visibility as the drinking mouth 43 is improved. Further, the back surface of the lid member 6 does not hit the face and is hygienic. Furthermore, since there is a distance from the liquid passage hole 45 to the drinking mouth 43, the beverage does not come out suddenly, and a sense of security can be given. Moreover, when drinking a beverage on a vehicle, even if the beverage container 1 is shaken by vibration or the like, the opening area of the liquid passage hole 45 is narrow and there is a distance from the liquid passage hole 45 to the drinking mouth 43, Beverage does not flow out in large quantities. Further, when a hot beverage is put in the container body 2, the opening area of the liquid passage hole 45 is smaller than that of the conventional case, so that the pressure applied to the inner plug 62 of the lid member 6 is small, and the lid member 6 is opened. The lid member 6 does not jump up vigorously.
[0013]
【The invention's effect】
As described above, the stopper of the beverage container according to the present invention includes the cylindrical drinking mouth member that is detachably attached to the mouth portion of the container body, and the lid member that is coupled to the drinking mouth member via the hinge shaft. And a spring that biases the lid member in the opening direction, and a lock member that is provided at a position facing the hinge shaft of the mouthpiece member and holds the lid member in a closed state. A drinking mouth formed on the locking member side, a bottom wall having a lower drinking mouth side and a higher hinge shaft side, a liquid passage hole and a hinge shaft formed on the drinking mouth side on a line connecting the hinge shaft of the bottom wall and the locking member And the lid member has an inner plug provided with a seal member for sealing the liquid passage hole and the air hole, so that there is a distance from the liquid passage hole to the drinking mouth. Therefore, the beverage does not come out suddenly and can give a sense of security. In addition, when drinking beverages on a vehicle, even if the beverage container is shaken by vibration, etc., the liquid passage hole has a small opening area and there is a distance from the liquid passage hole to the drinking mouth. It will not flow out. In addition, when a hot beverage is placed in the container body, the opening area of the liquid passage hole is smaller than the conventional one, so the pressure applied to the lid member is small, and the lid member jumps vigorously when opening the lid member. Absent. Further, by forming the uppermost edge of the mouthpiece at the uppermost position of the upper peripheral wall of the mouthpiece member, the visibility of the mouthpiece is improved and the back surface of the lid member does not hit the face when drinking a drink, and is hygienic. .
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a state in which the plug of the present invention is opened. FIG. 2 is a cross-sectional view of the same in a closed state. FIG. 3 is a plan view of the same in an open state.
DESCRIPTION OF SYMBOLS 1 ... Beverage container, 2 ... Container main body, 3 ... Plug body, 4 ... Spout member, 41 ... Spout part, 42 ... Mounting part, 43 ... Spout, 44 ... Bottom wall, 45 ... Liquid through-hole, 46 Air holes, 5 Hinge shafts, 6 Lid members, 61 Lid portions, 62 Inner plugs, 63 Seal members, 7 Torsion springs, 8 Lock members

Claims (2)

A cylindrical mouthpiece member that is detachably attached to the mouth portion of the container body, a lid member that is coupled to the mouthpiece member via a hinge shaft and opens and closes the upper opening of the mouthpiece member, and opens the lid member In the stopper of a beverage container, comprising: a spring that biases in a direction; and a lock member that is provided at a position facing the hinge shaft of the drinking member and holds the lid member in a closed state. On the locking member side of the upper opening peripheral wall, the bottom wall having a lower drinking mouth side and the hinge shaft side being higher, and the drinking mouth side on the line connecting the hinge shaft and the locking member on the bottom wall A liquid passage hole formed and an air hole formed on the hinge coupling portion side, and the lid member has an inner plug provided with a seal member for sealing the liquid passage hole and the air hole. A liquid container stopper. The stopper of the liquid container according to claim 1, wherein an uppermost edge of the drinking mouth is formed at an uppermost position of the upper peripheral wall of the drinking mouth member.

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