JP4939632B2 - Beverage container - Google Patents

Description

The present invention relates to a beverage container, and more particularly to a beverage container such as a portable thermos bottle that contains a beverage in a heat-retaining state or a cold-retaining state.

As shown in FIG. 5 (A), a beverage container for storing a beverage such as a portable thermos bottle in a warm or cold state is mounted on the container body 1 and the upper opening of the container body 1 and the interior of the container body. And a cap member 5 that is openable and closable with a sealing member 4 that closes the mouthpiece 2 a of the mouthpiece member 2.

Usually, the cap member 5 is pivotally connected to the back surface portion of the shoulder member 3 via a horizontal pivot 6 and between a closed position covered by the shoulder member 3 and an open position where the shoulder member 3 is opened. It is configured to be rotatable. The cap member 5 is locked by the detachable locking means 7 in the closed position. When the cap member 5 is released from the locking by pressing the operation button 8 with a fingertip, the cap member 5 is moved to the open position by the spring 9. When the cap member 5 is returned against the spring 9 after automatically opening and drinking a beverage, the cap member 5 is again locked in the closed position, and the sealing means 4 closes in close contact with the drinking mouth 2a.

By the way, after putting the cooled drink in the container main body 1, when the shoulder member 3 is attached to the container main body 1 and the cap member 2 is closed, the inside of the container main body 1 becomes airtight. At this time, the air inside the container main body 1 is cooled by the beverage, and thereby the inside of the container main body 1 is brought into a reduced pressure state, so that the sealing means 4 is adsorbed to the mouthpiece 2a. For this reason, even when the operation button 8 is pressed to open the cap member 2, the cap member 2 may not open.

On the contrary, after putting the heated beverage in the container body 1, when the shoulder member 3 was attached to the container body 1 and the cap member 2 was closed to make the inside of the container body 1 airtight, the container body 1 was heated. As the air cools together with the beverage, the inside of the container main body 1 is depressurized, so that the sealing means 4 is adsorbed by the drinking mouth 2a and makes it difficult to open the cap member 2 as in the case described above.

Therefore, in order to solve the above problem, a beverage container provided with a differential pressure valve has been proposed. As shown in FIG. 5 (B), the proposed beverage container is provided with a differential pressure valve 10 formed of an elastic material on the flat plate portion 3a of the shoulder member 3 positioned around the mouthpiece member 2. According to this, when the inside of the container main body 1 is depressurized, the differential pressure valve 10 opens the vent hole 10a and introduces the outside air, so that the internal pressure is balanced with the atmospheric pressure, and the sealing means 4 becomes the mouthpiece 2a. Can be prevented from adsorbing.

Registered Utility Model No. 3125880

In the beverage container provided with the mouthpiece member 2 as described above, it is desirable to make the diameter of the mouthpiece member 2 as large as possible from the viewpoint of ease of drinking, and accordingly, the area of the flat plate portion 3a of the shoulder member 3 Must be narrow.

However, as shown in FIG. 5, in the case of Patent Document 1 in which the differential pressure valve 10 is provided in the flat plate portion 3a, the differential pressure valve 10 and the vent hole 10a are extremely small, so that the valve function is not good. When removing the differential pressure valve 10 for cleaning, there is an inconvenience that the shoulder member 3 must always be separated from the container body 1 first. Moreover, even when the differential pressure valve 10 is mounted again after cleaning, it is very small, so that it is difficult to work, and particularly difficult for amateurs such as housewives in the home.

The present invention provides a beverage container that solves the above-mentioned problems when providing a differential pressure valve means that prevents the cap means from becoming unopenable by being adsorbed by the drinking mouth due to the temperature of the beverage. . Therefore, as a means for that , the container body (11), the inside of which can be depressurized by a beverage stored in a heat-retaining state or a cold-reserved state, and the interior of the container body that is attached to the upper opening of the container body communicating the shoulder member (13) having a cylindrical mouthpiece member protruding upward than the upper opening of the container body (12), the mouthpiece member (12) of the mouthpiece to (12a) And a cap means (15) pivotably connected to the shoulder member (13), the seal means (14) facing the drinking mouth (12a). A cylindrical means (26) provided with a slit projecting from the cap means (15) and facing the inner surface of the cap means (15), and detachably provided around the distal end side of the cylindrical means (26) An annular seal packing (28) for closing the mouthpiece (12a), and a through hole (3) penetrating through a closing portion for closing the tip of the cylindrical means (26). 0) and a detachable valve member (31) that removably closes the through hole (30) from the outside of the closing portion , the valve member (31) being a container due to the temperature of the beverage When the inside of the main body is depressurized, it is elastically deformed toward the inside of the mouthpiece (12a) to open the through hole (30), and when the inside of the container body returns to atmospheric pressure, it is elastically restored and the through hole (30 ) Is configured to constitute a differential pressure valve means (32) for preventing the seal packing (28) from being adsorbed by the mouthpiece (12a) .

In a preferred embodiment of the present invention, the valve member (31) includes a shaft portion (31a) inserted into a central through hole of the closing portion, and the through hole (30) by spreading from the shaft portion (31a). And an annular rib (31d) projecting downward is provided at the periphery of the umbrella portion (31c) .

The cylindrical means (26) has the outer diameter formed smaller than the inner diameter (D) of the mouthpiece (12a), and the mouthpiece (12a) is closed by the seal packing (28). The pressure valve means (32) is configured to enter and be positioned inside the mouthpiece (12a) .

According to the first aspect of the present invention, the mouthpiece 12 a of the mouthpiece member 12 standing from the shoulder member 13 is closed by the sealing means 14 provided around the cylindrical means 26 of the cap means 15. The slit means 36 is provided with slits 36 and 37, and the valve member 31 for opening and closing the through hole 30 penetrating the closing portion for closing the tip of the cylindrical means 26 is provided. When the inside of the container main body 11 is depressurized due to the temperature of the stored beverage while being positioned at 12a, the container body is opened by elastically deforming toward the inside of the mouthpiece 12a. It is possible to suitably configure the differential pressure valve means 32 that prevents the seal packing 28 from being adsorbed by the mouthpiece 12a by elastically restoring the interior of the interior when the pressure returns to atmospheric pressure and closing the through hole 30. Become.

In particular, since the valve member 31 is provided at the drinking mouth 12a above the upper opening of the container body 11 containing the beverage, the valve member 31 is away from the beverage and allows the differential pressure valve means 32 to function suitably. be able to.

And since both the seal packing 28 and the valve member 31 are detachable structures, there exists an effect that it can wash | clean easily. In particular, since the sealing means 14 and the differential pressure valve means 32 are provided on the distal end side of the cylindrical means 26 protruding from the cap means 15, when removing the seal packing 28 and the valve member 31 for cleaning, shoulders are used. Even if the member 13 is not separated from the container main body 11, it is convenient that it can be removed at the front end side of the cylindrical means 26 protruding from the opened cap means 15 just by opening the cap means 15, It is convenient that the seal packing 28 and the valve member 31 can be simultaneously removed and cleaned at the same location.

According to the second aspect of the present invention, since the valve member 31 is provided with the annular rib 31d protruding downward on the periphery of the umbrella portion 31c, the outer periphery of the umbrella portion 31c is held in a perfect circle. It is possible to provide a knob for removing the valve member 31 with a fingertip.

According to the third aspect of the present invention, the differential pressure valve means is formed in a state where the outer diameter of the cylindrical means 26 is smaller than the inner diameter D of the mouthpiece 12a and the mouthpiece 12a is closed by the seal packing 28. 32 is configured to enter and be positioned inside the mouthpiece 12a. Therefore, there is nothing in the internal space of the mouthpiece 12a that hinders the operation of the differential pressure valve means 32, so that the differential pressure valve means 32 can be operated satisfactorily.

It is a vertical side view which shows one Embodiment of this invention. It is a vertical side view which shows the opening / closing effect | action of the cap member which concerns on one Embodiment of this invention. The sealing means, closing means, and differential pressure | voltage valve means which concern on one Embodiment of this invention are shown, (A) is a vertical side view, (B) is an expanded sectional view of the principal part. It is a vertical side view which shows the effect | action of the differential pressure | voltage valve means which concerns on one Embodiment of this invention. The prior art is shown, (A) is a vertical side view which shows a shoulder member and a cap member, (B) is an expanded sectional view of a differential pressure valve.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 2, the beverage container includes a container main body 11 that contains a beverage in a heat-retaining state or a cold-retained state, and a cylinder that is attached to the upper opening of the container main body 11 and communicates with the inside of the container main body 11. And a cap member 15 having an openable / closable cap member 15 having a sealing member 14 for closing the mouthpiece 12a of the mouthpiece member 12.

The cap member 15 is pivotally connected to the back surface of the shoulder member 13 via a horizontal pivot 16 and rotates between a closed position covered by the shoulder member 13 and an open position where the shoulder member 13 is opened. It is configured freely. The cap member 15 is locked by the detachable locking means 17 in the closed position. When the cap member 15 is released from the locking by pressing the operation button 18 with a fingertip, the cap member 15 is moved to the open position by the spring 19. When the cap member 15 is returned against the spring 19 after the beverage is automatically opened and the beverage is drunk, the cap member 15 is again locked in the closed position, and the sealing means 14 is brought into close contact with the drinking mouth 12a and closed.

The container body 11 is, for example, a thermos bottle type in which a vacuum heat insulating wall is formed by stainless inner and outer containers 20a and 20b, and an opening edge 22 formed with a male screw 21a is formed with a small diameter upward and extended. .

The shoulder member 13 is formed of a synthetic resin, and a flat plate portion 13a is formed on an upper portion of the shoulder portion 13b formed with a female screw 21b screwed to the male screw 21a, and the mouthpiece member 12 is erected from the flat plate portion 13a. In addition, an inclined enlarged diameter portion 12b toward the flat plate portion 13a is formed at the lower end portion of the mouthpiece member 12.

Such a beverage container drinks the beverage filled in the container body 11 by the user putting his / her lips against the drinking mouth 12a from the front side having the locking means 17 and tilting the beverage container. As shown in FIG. 1, it is desirable that the mouthpiece member 12 has an inner diameter D of the mouthpiece member 12 as large as possible from the viewpoint of ease of drinking, so that the outflow of the beverage and the inflow of the outside air are improved. Therefore, the it is not to desired to form an inclined enlarged diameter portion 12b as described above. Therefore, as shown in FIG. 1, the width W of the flat plate portion 13a surrounding the inclined enlarged diameter portion 12b must be narrow, and the width W is less than or equal to one half of the inner diameter D, that is, 2W <D. (W <D at maximum).

When the cap member 15 rotates to the closed position against the spring 19, the cap member 15 is automatically locked by the locking means 18 with one touch. Locking means 23 is provided on the cap member 15 so as to be slidable up and down. When the cap member 15 is rotated to the closed position, the locking means 23 faces the locking means 17. That is, when the locking means 23 is moved downward, the operation button 18 of the locking means 17 is locked and cannot be pushed. Therefore, when drinking a beverage, if the operation button 18 is released by moving the locking means 23 upward as shown by the arrow F1 in FIG. 2 and then pressing the operation button 18 as shown by the arrow F2 from this state, The locking means 17 is released, and the cap member 15 is automatically opened to the open position by the spring 19 as shown by the arrow F3, and the opened cap member 15 holds the open position by the spring 19.

In the case of the illustrated example, the locking means 23 includes a holding means 24 that protrudes forward and backward toward both sides by a spring, and is slidable up and down between a pair of vertical walls 25. A concave portion for fitting and locking the holding means 24 is provided on the vertical wall 25 at both the unlocked position moved upward and the locked position moved downward.

As shown in FIG. 3, the sealing means 14 projects from the inside of the cap means 15 so as to face the mouthpiece 12a, and the tubular means 26 communicates the internal space with the outside air, and the tubular means. A closing means 27 for closing the front end of 26, and a seal packing 28 detachably attached to a peripheral portion of the front end of the cylindrical means 26.

The closing means 27 includes a closing plate portion 29 that closes the distal end tubular portion of the cylindrical means 26, a through hole 30 penetrating through the closing plate portion 29, and a valve member 31 that closes the through hole 30 in an openable and closable manner. The valve member 31 opens the through hole 30 by elastic deformation when the inside of the container body 11 is depressurized, and elastically deforms the through hole 30 when the inside of the container body 11 returns to atmospheric pressure. A differential pressure valve means 32 for closing is configured.

Thereby, as described above with respect to the prior art, when the inside of the container body 11 is depressurized due to the temperature of the beverage, outside air is introduced by opening the vent hole 30, so that the internal pressure is balanced with the atmospheric pressure, It is possible to prevent the seal packing 28 from adsorbing to the mouthpiece 12a.

The details of the illustrated embodiment will be described with reference to FIG. 3 (A). The cylindrical means 26 is integrally provided with an outer cylindrical member 33 projecting integrally from the cap means 15 and the closing plate portion 29. The inner cylinder member 34 is inserted into the outer cylinder member 33 and fixed to each other by ultrasonic welding or high frequency welding. At this time, as shown in the figure, a rib 35 concentric with the outer cylinder member 33 is formed in the cap means 15 so that the insertion end of the inner cylinder member 34 is fitted between the rib 35 and the outer cylinder member 33. It is preferable to configure.

The outer cylinder member 33 and the inner cylinder member 34 are located at locations near the inner surface of the cap means 15 and form slits 36 and 37 that communicate with each other, whereby the inner space of the cylindrical means 26 is formed. 38 communicates with the internal space of the cap means 15 and further communicates with the outside air through a gap between the cap means 15 and the shoulder member 13.

With the inner cylinder member 34 inserted into the outer cylinder member 33, the inner cylinder member 34 forms a protruding portion 34 a that protrudes from the distal end portion 33 a of the outer cylinder member 33. At this time, a flange 34b is preferably formed on the outer peripheral surface of the protruding end of the protruding portion 34a.

The seal packing 28 is integrally formed in an annular shape by an elastic material such as silicon rubber or other rubber, and has an inward protruding peripheral strip 28a fitted to the outer peripheral surface of the protruding portion 34a of the inner cylindrical member 34; A skirt portion 28b that is fitted to the outer peripheral surface of the distal end portion 33a of the outer cylinder member 33 is integrally formed, and the outer cylinder member 33 and the inner cylinder member 34 are simply formed by elastically attaching one seal packing 28. Seals the joint surface well. In the case of the illustrated embodiment, the projecting circumferential stripe 28 a is fitted into a circumferential groove formed between the flange 34 b of the inner cylinder member 34 and the distal end portion 33 a of the outer cylinder member 33, and thereby the axial direction of the cylindrical means 26. Fixed immovable. Accordingly, when the seal packing 28 is crimped to the mouthpiece 12a by closing the cap means 15, the seal packing 28 does not squeeze up and fall off, and is securely fixed to a predetermined position of the cylindrical means 26. In this state, the mouthpiece 12a is suitably sealed.

The valve member 31 is integrally formed of an elastic material such as silicon rubber or other rubber, and a shaft portion 31a inserted into the central through hole of the closing plate portion 29, and the back surface of the closing plate portion 29 at the tip of the shaft portion 31a. A conical protrusion 31b that locks onto the shaft, and an umbrella portion 31c that extends from the base end of the shaft portion 31a to cover the through-hole 30 and elastically contact the peripheral portion with the surface of the closing plate portion 29. Preferably, an annular rib 31d protruding downward is provided on the periphery of the umbrella portion 31c. The annular rib 31d keeps the outer peripheral edge of the umbrella portion 31c in a perfect circle and provides a knob when the valve member 31 is removed with a fingertip.

Accordingly, the through hole 30 of the closing plate portion 29 is normally closed by the valve member 31. Therefore, the seal packing 28 is in close contact with the mouthpiece 12a while the mouthpiece 12a is closed by the sealing means 14 by turning the cap means 15 to the closed position, and the inner periphery of the seal packing 28 is closed. Since the plate portion 29 closes the through-hole 30 by the valve member 31, even when the beverage container falls down, the beverage does not leak from the mouthpiece 12a.

Therefore, as described above, when the inside of the container main body 11 is depressurized due to the temperature of the beverage and a pressure difference is generated with respect to the atmospheric pressure , the upper portion of the container main body 11 containing the beverage as shown in FIG. Located at the mouthpiece 12a above the opening, the umbrella portion 31c of the valve member 31 constituting the differential pressure valve means 32 is elastically deformed to separate the peripheral portion from the surface of the closing plate portion 29 and open the through hole 30. An internal space 38 of the cylindrical means 26 communicating with the outside air is communicated with the inside of the container main body 11, and the outside air is introduced into the container main body 11 as shown by the arrows in the drawing. Therefore, since the internal pressure of the container body 11 is balanced with the atmospheric pressure, the seal packing 28 is not adsorbed by the mouthpiece 12a and does not hinder the opening operation of the cap means 15.

In the case of the illustrated embodiment, the outer diameter of the cylindrical means 26 is formed slightly smaller than the inner diameter D of the mouthpiece member 12, and the seal member 28 is in close contact with the mouthpiece 12a, and the valve member 31 and the blockage are closed. Since the plate portion 29 is positioned so as to enter the mouthpiece 12a, and there is nothing that hinders the operation of the pressure difference valve means 32 in the inner space of the mouthpiece 12a, the pressure difference valve means 32 is operated satisfactorily. I can.

Incidentally, as described above, the mouthpiece member 12 is configured to be easy to drink by making the inner diameter D sufficiently large, and accordingly, the cylindrical means 26 and the differential pressure valve means 32 are necessary and sufficient. It is greatly formed. As a result, the differential pressure valve means 32 can be satisfactorily operated, and the operation of attaching and removing the valve member 31 to the closing plate portion 29 is facilitated.

In particular, for cleaning, when removing the valve member 31, without separating the shoulder member 13 from the container body 11,-out the cap means 15 opens, the tubular means 26 projecting from the inner surface of the cap means 15 There is a convenience that the valve member 31 can be pulled out at the distal end side . Further, there is a convenience that the seal packing 28 provided on the cylindrical means 26 at the same location can be removed and cleaned at the same time.

Also, when the valve member 31 is mounted on the closing plate portion 29 again after cleaning, the valve member 31 is formed to be sufficiently large as necessary, so that the operation is easy, and particularly an amateur such as a housewife at home. Therefore, it is of great significance that no difficulty is involved in the installation / removal work.

DESCRIPTION OF SYMBOLS 11 Container body 12 Spout member 12a Spout 13 Shoulder member 14 Sealing means 15 Cap means 26 Cylindrical means 27 Closing means 28 Seal packing 28a Projection strip 28b Skirt part 29 Closure board part 30 Through-hole 31 Valve member 31a Shaft part 31b Projection 31c Umbrella 32 Differential pressure valve means 33 Outer cylinder member 33a Tip 34 Inner cylinder 34a Projection 34b Flange 36, 37 Slit 38 Internal space

Claims (3)

A container body (11) inside is possible depressurized by the beverage contained in a heat insulating state or cold state, the upper opening of the communicating to said container body in the container main body while being attached to the upper opening of the container body comprising a shoulder member (13), the mouthpiece member (12) of the mouthpiece sealing means (14) for closing the (12a) having a cylindrical mouthpiece members projecting (12) upward than And a cap means (15) pivotably connected to the shoulder member (13) .
The sealing means (14) protrudes from the cap means (15) so as to face the mouthpiece (12a) and has a cylindrical means (26) provided with a slit facing the inner surface of the cap means (15). An annular seal packing (28) that is detachably provided around the distal end side of the cylindrical means (26) and closes the mouthpiece (12a), and a closing portion that closes the distal end of the cylindrical means (26) And a detachable valve member (31) for opening and closing the through hole (30) from the outside of the closing portion .
When the inside of the container body is depressurized due to the temperature of the beverage, the valve member (31) elastically deforms toward the inside of the mouthpiece (12a) to open the through hole (30), and the container body Differential pressure valve means (32) for preventing the seal packing (28) from being adsorbed to the mouthpiece (12a) by elastically restoring the interior of the interior when the pressure returns to atmospheric pressure and closing the through hole (30). A beverage container characterized by comprising . The valve member (31) covers the through hole (30) by spreading from the shaft portion (31a) inserted into the central through hole of the closing portion and the shaft portion (31a), and the peripheral portion is closed. 2. An umbrella rib (31c) elastically contacting and intimately contacting the surface of the portion, and an annular rib (31d) projecting downward is provided on the periphery of the umbrella portion (31c). Beverage container . The cylindrical means (26) has the outer diameter formed smaller than the inner diameter (D) of the mouthpiece (12a), and the mouthpiece (12a) is closed by the seal packing (28). The beverage container according to claim 1 or 2 , wherein the pressure valve means (32) is configured to enter and be positioned inside the drinking mouth (12a).

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