JPH08280556A - Bottle - Google Patents

Abstract

PURPOSE: To improve the mouth touch when a container body is used as a cup as it is by automatically or manually resolving the negative pressure when the pressure in the void in the container body becomes negative in a bottle capable of sealing the container body. CONSTITUTION: An opening section 13 of a container body 1 having a heat retaining function can be sealed by a removable plug body 2 in this bottle. The plug body 2 is provided with an air passage 24 communicating a void 16 in the container body 1 with the outside air and a valve element 3 opening or closing the air passage 24. A pressure-operated valve capable of being opened when the valve element 3 is operated by a valve element operating means 4 from the outside or only when the pressure of the void 16 becomes negative at a prescribed level, is employed as valve element 3, and the negative pressure of the void 16 in the container body 1 can be resolved. A small-diameter step section 17 serving as a mouth pad section is formed on the upper edge outer periphery section of the container body 1, and the taste at the time of drinking is improved.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention allows a relatively small amount of liquid to be kept warm, or cans (or bottles) to be kept warm as they are, and the container body to be used as a cup as it is. It's about bottles.

[0002]

2. Description of the Related Art For example, a relatively small amount of tea (or coffee) to be drunk when eating, such as bento, may be used, and in recent years, heat-insulating bottles for such small amounts have been commercially available.

In a conventional bottle of this type, a stopper is screwed into an opening of a container having a heat retaining function (a metal vacuum double wall structure). Is sealed. Then, in this conventional bottle, the opening is sealed and carried while the liquid is contained in the container body, and when drinking, the stopper body is unscrewed to directly drink the liquid in the container body or transfer it to another cup. Change and drink. In addition, when drinking the liquid in the container as it is,
The mouth is attached directly to the opening edge of the container body.

By the way, in this type of bottle, a hot liquid (for example, tea or coffee) is often contained, but if such a hot liquid is contained in the container body and tightly stoppered, the liquid will be stored after a long time. When cooled, the temperature of the air in the void inside the container also drops and the void becomes negative pressure. When the void becomes negative pressure in this way, the negative pressure causes the plug packing of the plug body to come into pressure contact with the plug seat of the container body opening.

[0005]

However, the conventional bottle of this type does not have the function of eliminating the above-mentioned negative pressure. Therefore, when the liquid in the container cools and the void becomes a strong negative pressure, However, there is a problem that the screwing operation of the plug body becomes heavy due to the pressure contact with the plug seat. Further, in the conventional bottle of this type, when the liquid contained in the container body is to be poured out, the stopper must be screwed and removed, which makes the pre-operation for liquid pouring troublesome. There was also the problem of being.

In view of the above-mentioned problems of known bottles, the present invention relates to a bottle having a structure capable of hermetically sealing the inside of the container body. Even if a void in the container body becomes negative pressure, the negative pressure is artificially or automatically The liquid inside the container can be poured or drunk while the stopper is still attached, and the liquid inside the container can be directly attached to the opening edge of the container. The purpose is to improve the mouth feel when drinking.

[0007]

The present invention has the following constitution as means for solving the above problems.

The invention of claim 1 of the present application The bottle of the invention of claim 1 of the present application is a container body having a metal vacuum double-wall structure in which a vacuum is provided between the outer wall and the inner wall, and a plug body for tightly sealing the opening of the container body. And the opening is a wide mouth having substantially the same diameter as the inner diameter of the body of the container body, and the opening forming portion of the inner wall,
An internal thread for screwing the stopper body and an annular bulging portion that serves as a stopper seat of the stopper packing of the stopper body are integrally formed, and the stopper body has an air passage for communicating a space inside the container body with the outside air, and an air passage. A valve body for opening and closing the passage and a valve body operating means for opening the valve body from the outside to communicate with the outside air are provided, and a small-diameter step portion serving as a mouth rest portion is formed on the outer peripheral portion of the upper edge of the container body. It is characterized by

Invention of Claim 2 The invention of Claim 2 of the present invention is characterized in that, in the bottle of Claim 1, the air passage is a discharge passage for discharging the liquid in the container body.

The invention of claim 3 of the present application The bottle of the invention of claim 3 of the present application is a container body having a metal vacuum double-wall structure in which a vacuum is provided between the outer wall and the inner wall, and a plug body for tightly sealing the opening of the container body. And the opening is a wide mouth having substantially the same diameter as the inner diameter of the body of the container body, and the opening forming portion of the inner wall,
An internal thread for screwing the stopper body and an annular bulge portion that serves as a stopper seat for the stopper packing of the stopper body are integrally formed, and the stopper body has an air passage for communicating a void in the container body with the outside air, The valve body that opens and closes the air passage is provided, and as the valve body, a pressure operated valve that opens only when the pressure in the cavity becomes a negative pressure below a predetermined level is adopted. It is characterized in that a small-diameter step portion serving as a mouthpiece portion is formed in the portion.

Invention of Claim 4 of the Invention According to the invention of Claim 4 of the present invention, in the bottle of Claim 3 above, the air passage is formed in a straight line in the vertical direction such that the straw can be inserted from above the stopper to the inside of the container. It is characterized in that a flap-shaped valve is used as the valve element, which is pressed by the straw when the straw is inserted and retracts downward.

Invention of Claim 5 The invention of Claim 5 of the present application is the bottle according to any one of Claims 1 to 4, wherein the stopper is provided with an outside of a small-diameter step portion serving as a mouthpiece. It is characterized in that a cover portion for covering is provided.

Invention of Claim 6 of the Invention In the invention of claim 6 of the present application, in the bottle according to any one of claims 1 to 5, a shoulder ring is forcibly fitted on the upper outer surface of the outer wall of the container body. It is characterized in that the shoulder ring is provided with a small-diameter step portion which serves as a mouthpiece.

[0014]

In the bottles of the claims of the present application, the container body has a vacuum double-wall structure made of metal and therefore has a heat retaining function. Moreover, since the opening of the container body is wide, it is also possible to store the beverage can in the container body as it is and keep it warm. Further, since the female screw for screwing the plug body and the annular bulge portion that serves as the plug seat are integrally formed on the inner wall side of the container body, appropriate work can be performed on the upper outer surface side of the container body. Thus, in the bottle of each claim of the present application, the small-diameter stepped portion serving as the mouthpiece is formed on the outer peripheral portion of the upper edge of the container body. By doing this, the lower lip can be applied to the small-diameter step portion when drinking with the mouth directly attached to the opening edge portion of the container body, and in this case, the lower lip has a large area of the opening edge portion of the container body. Since it contacts the part, the contact feeling of the lower lip becomes good.

In this type of bottle, a hot liquid (for example, tea or coffee) is often contained, but when the hot liquid cools, the temperature of the air in the empty space in the container is also lowered and the empty space is under negative pressure. become.

In the bottle of the first aspect of the present invention, the stopper has an air passage communicating with the outside air, a valve body for opening and closing the air passage, and a valve body operating means for opening and closing the valve body from the outside. Since the valve body is provided, the valve body can be opened by the valve body operating means when the liquid in the bottle cools and the void in the container body becomes negative pressure. When the valve body is opened in this way, outside air is introduced into the void inside the container body through the air passage, and the negative pressure state of the void is eliminated. Further, in the bottle of claim 1 of the present application, when the valve body is kept closed in the tightly plugged state, the air passage is always closed. Therefore, for example, even if the bottle is turned upside down, the liquid in the bottle remains There is no risk of outflow through the air passage.
Further, since the valve body is normally closed, even if the valve body is provided with an air passage, the heat retaining action of the liquid contained in the bottle is improved.

The bottle of the invention of claim 2 of the present application has the following action in addition to the action of claim 1. That is, since the air passage provided in the stopper is used as the discharge passage for discharging the liquid in the container body, when the valve body is opened, the liquid in the container is discharged without removing the stopper body. It can be poured out through the (air passage).

In the bottle according to the third aspect of the present invention, when the liquid in the bottle cools and the negative pressure in the container body becomes a predetermined level or lower, the valve body automatically opens due to the negative pressure state. (A void inside the container communicates with the outside air). Therefore, the negative pressure state in the space inside the container can be automatically canceled without any special valve opening operation. When the valve body opens, the negative pressure state in the space inside the container is instantly canceled, and when the negative pressure state subsequently disappears, the valve body instantly closes. Therefore, the time when the air passage is opened is instant, and even if the air passage is opened and closed, the temperature decrease rate of the liquid in the container body is not so different from that in the completely sealed state. In the bottle of claim 3, a pressure-operated valve is used as the valve element. However, since the valve element does not open when the lower surface side thereof is in a negative pressure state below a predetermined level, for example, a bottle When the liquid in the bottle is in contact with the valve body when the is upside down, the void inside the container (in this case, the void is located on the bottom side of the container) is below a certain level. The valve does not open even when the negative pressure is reached.

The bottle of the invention of claim 4 of the present application has the following action in addition to the action of claim 3. That is, the straw can be inserted into the air passage provided in the stopper, and when the straw is inserted, the valve body is pressed by the straw and retracts downward. When drinking the liquid therein, the straw can be sucked through the straw by inserting the straw into the container body through the air passage without removing the stopper.

In the bottle of the invention of claim 5 of the present application, the stopper is provided with the cover portion for covering the outside of the small-diameter stepped portion serving as the mouth portion, so that when the stopper is screwed into the container body, Dust, dust, etc. will not adhere to the small-diameter step portion that serves as the mouthpiece.

In the bottle of the invention of claim 6 of the present application, the shoulder ring is attached by force fitting to the upper outer surface of the outer wall of the container body. However, in the present application, the female screw for screwing the plug body and the bulging portion serving as the plug seat are attached. Since the and are formed on the inner wall of the container body, such a configuration (attachment of the shoulder ring) is possible. Further, according to the sixth aspect of the invention, since the shoulder ring has the small-diameter step portion serving as the mouthpiece portion, the mouthfeel becomes better than the case where the small-diameter step portion is directly formed on the metal portion of the container body.

[0022]

In the bottles according to the inventions of claims 1 to 6, since the small-diameter step portion serving as the mouth portion is formed on the outer peripheral portion of the upper edge of the container body, the bottle is directly attached to the opening edge portion of the container body. It has the effect of improving the mouth feel when drinking with the mouth attached.

According to the first aspect of the present invention, in a bottle in which the opening of the container can be sealed with a stopper, an air passage for communicating a space in the container with the outside air and the air passage are provided in the bottle. Since the valve body that opens and closes and the valve body operating means that opens the valve body from the outside are provided, even if the liquid inside the container cools and the space on the lower surface side of the stopper body becomes negative pressure, By opening the valve body with the valve body operating means prior to the body opening operation, the negative pressure in the void can be eliminated. Therefore,
The bottle according to claim 1 of the present application has an effect that it is possible to prevent the opening operation of the plug body from becoming heavy due to the negative pressure. Further, in the bottle according to claim 1 of the present application, in the tightly plugged state, the air passage in the stopper is always closed by the valve body. Therefore, even if the air passage is provided in the stopper, the liquid in the bottle is It does not flow out through the air passage and can be used as a portable device (upside down). Further, since the valve body is normally in a closed state, there is also an effect that the heat retaining action of the liquid contained in the bottle becomes good even if the air passage is provided.

In the bottle of the invention of claim 2 of the present application, in addition to the effect of claim 1, since the air passage provided in the plug is used as a discharge passage for discharging the liquid in the container body, the valve body When the valve is opened, the liquid in the container can be discharged to the outside through the discharge passage (air passage) without removing the stopper, and the liquid discharge operation becomes simple. Also, since the liquid inside the container can be poured out simply by opening the valve with the stopper attached, when drinking in a swaying place such as in a car, directly into the outlet (upper end opening) of the outlet passage. , It can be performed with the mouth attached, and in that case, there is an effect that the liquid in the container body does not spill.

In the bottle of the third aspect of the present invention, since the valve element is a pressure actuated valve that opens only when the pressure in the inner space of the container becomes a negative pressure below a predetermined level. There is an effect that the negative pressure state of the void can be automatically canceled without special valve opening operation, and the plug opening operation can be prevented from becoming heavy due to the negative pressure. Also, with the bottle of the third aspect, although the stopper has the air passage, it has an effect that it can be used as a portable device without any trouble.

In addition to the effect of claim 3, in the bottle of the invention of claim 4 of the present application, the straw can be inserted into the container body from the air passage provided in the stopper, so that the liquid in the container body At the time of drinking, it is possible to suck with a straw with the stopper attached, and for example, even when drinking in a swaying place such as in a car, there is an effect that the liquid in the container body does not spill due to the swaying.

In the bottle of the invention of claim 5 of the present application, the stopper is provided with the cover portion for covering the outside of the small-diameter step portion serving as the mouthpiece portion. Therefore, when the stopper body is screwed into the container body, There is an effect that dust and dirt do not adhere to the small-diameter step portion that serves as the mouthpiece, which is good in hygiene.

In the bottle of the invention of claim 6 of the present application, the shoulder ring is attached to the upper outer surface of the outer wall of the container body by force fitting, and the shoulder ring is formed with the small-diameter step portion which serves as the mouth portion. There is an effect that the mouth feel becomes better than in the case where the small diameter step portion is directly formed on the metal portion.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the present invention will be described with reference to FIGS. 1 to 6. The first embodiment of the present invention is shown in FIGS. 1 and 2, the second embodiment is shown in FIG. Shows the bottle of the third embodiment, and FIGS. 5 and 6 show the bottle of the fourth embodiment.

First, the structure of the common parts in the bottles of the first to fourth embodiments will be described. The bottle of each of the embodiments is composed of a metal vacuum double-walled container body 1 having an outer wall 11 and an inner wall 12, and a plug body 2 for closing an opening 13 of the container body 1. Further, each of the bottles is formed in a relatively small size such that the body portion can be held with one hand.

The outer wall 11 and the inner wall 12 of the container body 1 are each formed of a stainless steel plate. In addition, the container body 1 has a heat-retaining function by making a vacuum between the outer wall 11 and the inner wall 12.

The opening 13 of the inner wall 12 is a wide mouth having a diameter substantially the same as or slightly smaller than the inner diameter of the container body. And
In the bottle of each of the embodiments, the beverage-filled can (or bottle) 5 is introduced from the opening 13 into the container body 1, for example, as shown in FIG.
So that they can be put in and taken out.

On the inner surface of the opening portion 13, a female screw 14 and an annular bulging portion 15 which bulges inward are formed integrally at a position slightly below the female screw forming portion. By doing so, appropriate work can be performed on the upper outer surface side of the container body 1. In the first embodiment (FIGS. 1 and 2), the second embodiment (FIG. 3), and the fourth embodiment (FIG. 5), the shoulder ring 10 has the reference numeral 19 on the upper outer peripheral surface of the outer wall 11.
As shown by, it is forcibly fitted and attached by concave and convex fitting. A small-diameter step portion 17 is formed on the outer peripheral portion of the upper edge of the shoulder ring 10 to serve as a mouthpiece for drinking.
Thus, the small-diameter step portion 17 is formed on the outer peripheral portion of the upper edge of the shoulder ring 10.
By forming the above, the lower lip can be applied to the small diameter step portion 17 when the mouth is directly attached to the opening edge portion of the container body 1 for drinking. In the third embodiment shown in FIG. 4, there is no shoulder ring, and the outer wall 11 has a small-diameter step portion 17 formed on the upper end portion thereof which serves as a mouth rest portion for drinking.

The stopper 2 has a container-shaped stopper main body 21 and a cover 22 for covering the upper portion of the stopper main body 21.
The plug body 21 and the cover body 22 are integrated by force fitting.

A male screw 25 is formed on the outer surface of the plug body 21. An annular plug packing 23 is attached to the outer peripheral surface of the lower end portion of the plug body 21. Further, on the outer peripheral portion of the cover body 22, an annular cover portion 22 that hangs downward.
a is integrally formed. The cover portion 22a covers the outside of the small-diameter step portion 17 which serves as a mouthpiece portion for drinking when the plug body is screwed.

In the bottle of each of the embodiments, when the male screw 25 of the plug 2 is screwed into and tightened with the female screw 14 of the container opening 13, the plug packing 23 is pressed against the plug seat 15 and the opening is opened. 13 can be stoppered. Further, when the plug body is screwed, the cover portion 22a of the cover body 22 covers the outside of the small-diameter step portion 17 that serves as a mouthpiece for drinking, so that dust or dust is prevented from adhering to the small-diameter step portion 17. It can be prevented.

An air passage 24 is formed in the stopper body 2 so that the space 16 in the container body 1 communicates with the outside air. Further, the plug body 2 is provided with a valve body 3 for opening and closing the air passage 24.

Since each of the bottles of the above-mentioned embodiments has a small size, the container body 1 can be used as a cup as it is by removing the plug body 2.

The individual embodiments will be described below.

First, the bottle of the first embodiment shown in FIGS. 1 and 2 will be described. In the bottle of the first embodiment,
The air passage 24 formed in the stopper 2 is vertically penetrated at a position deviated toward the outer periphery of the stopper 2. In the first embodiment, the air passage 24 is also used as the spout passage 28 for spouting the liquid W in the container body 1, has an inner diameter of an appropriate size, and opens on the upper surface of the plug body 2. are doing.

The valve body 3 includes a valve plate 31 that opens and closes a lower opening of the air passage 24 (also serving as a discharge passage 28) from below, and a valve rod 32 that is erected at the center of the upper surface of the valve plate 31. Have An annular packing 33 is attached to the outer peripheral portion of the valve plate 31.

On the other hand, a guide cylinder 26 is formed on the bottom wall of the plug body 21 at a position slightly displaced from the center of the plug body 2 toward the air passage 24 side. Then, the valve body 3 has its valve rod 32 portion inserted into the guide cylinder 26 from below,
It is installed so that it can move up and down. Further, a seal member 34, which slides on the inner surface of the guide cylinder 26, is attached to the outer peripheral surface of the valve rod 32 to prevent liquid from leaking through the gap between the valve rod 32 and the guide cylinder 26. If the valve rod 32 of the valve body 3 is guided at a position close to the air passage 24 side as in the first embodiment, the air passage 24 is located near the outer periphery of the plug body 2. Also, the diameters of the valve plate 31 and the packing 33 can be reduced.

Further, the valve body 3 includes a spring 30 provided between a receiving seat 35 provided on the valve rod 32 and a bottom wall of the plug body 21.
Is urged upward (in the valve closing direction) by the valve plate 31 (packing 33) when the valve body 3 is free.
The lower end opening of the is closed. The spring 30 has such an elastic force as to maintain the valve body 3 in the closed state even if the negative pressure in the space 16 in the container body 1 becomes large.

On the upper part of the plug body 2, a valve body operating means 4 for opening the valve body 3 is provided. The valve body operating means 4 of the first embodiment is a slide operating type operating member 41.
Are using. The operation member 41 is installed directly above the valve body valve rod 32 so as to be horizontally slidable on a slide base 45 provided in the stopper body 21. A cam surface 43 having a height difference and a slope is formed on the lower surface of the operation member 41. Further, the knob 4 is provided on the upper surface of the operation member 41.
2 is formed, and the knob 42 is projected upward from the guide hole 27 formed in the cover body 22 of the plug body 2. Then, the valve body operating means 4 slides the knob 42 of the operating member 41 in the plug diameter direction,
The valve body 3 can be switched between the closed state shown in FIG. 1 and the opened state shown in FIG.

Next, the operation and usage of the bottle of the first embodiment will be described. After the hot liquid W (for example, tea or coffee) is put in the container body 1 and the stopper body 2 is screwed in and tightly closed (at this time, the valve body 3 is kept closed).
Even when the bottle is turned upside down, the liquid W in the container body 1 does not leak to the outside. Therefore, this bottle can be used for carrying. Even if the air passage 24 is formed in the plug body 2, since the air passage 24 is normally closed by the valve body 3, the heat retaining action does not decrease. Further, in the bottle of the first embodiment, when the liquid W in the container body 1 is poured out,
This can be performed by two methods, that is, the case of removing the conventional plug body 2 and the case of keeping the plug body 2 attached. That is, when removing the plug body 2, the plug body 2 may be unscrewed, and the container body 1 can be directly used as a cup with the plug body 2 removed. When the mouth is attached to the opening edge portion of the container body 1, the lower lip contacts the small-diameter step portion 17 serving as the mouth rest portion, and in that case, the lower lip contacts the large area portion of the opening edge portion of the container body. Therefore, the contact feeling of the lower lip is improved. Further, when the plug body 2 is still attached, the operation member 41 is operated to open the valve body to open the valve body 3 as shown in FIG. It can be poured out through the passage 28 (air passage 24). If the valve is opened with the stopper 2 still attached, the outlet of the pouring passage 28 can be directly attached to the mouth so that the liquid in the container does not spill when drinking in a shaking place such as in a car. .

Further, when a hot liquid W is placed in a bottle and is hermetically closed for a long time, the liquid W in the container 1 gradually cools although the container 1 has a heat retaining function. Then, the temperature of the air in the void 16 is also lowered and condensed, so that the void 16 has a negative pressure. If the space 16 becomes a strong negative pressure, the unscrewing operation of the plug body 2 will be significantly heavy as it is. Then, when opening the plug body 2 in a state in which the void 16 has a strong negative pressure, first, the operation member 41 is slid to the valve opening side to open the valve body 3. Then, the outside air flows into the void 16 through the air passage 24, and the negative pressure state of the void 16 is released. Therefore, an effect that the screwing operation of the plug body 2 can be performed lightly is obtained.

The bottle of the second embodiment shown in FIG. 3 shows a modification of the valve body operating means 4 of the first embodiment. In the bottle of the second embodiment, a lever type operating member 46 is adopted as the valve body operating means 4. This operation member 4
6, the base end side of which is pivotally supported by a pin 48 on the inner surface of a concave chamber 47 provided in the upper surface portion of the cover body 22 of the plug body 2, and the other end side (knob 49 side) can be pivoted up and down. Is installed as. A cam surface 50 that pushes down the upper end portion of the valve body valve rod 32 is formed on the proximal end side of the operation member 46. And
In the second embodiment, the cam surface 50 has the valve rod 3 in the state where the operating member 46 is laid sideways (the state shown by the solid line in FIG. 3).
2 does not act on the valve body 3 and maintains the valve closed state, and when the operating member 46 is raised upward as indicated by reference numeral 46 ', the cam face 50 pushes down the upper end portion of the valve rod 32 so that the valve body is closed. The valve 3 is opened as indicated by reference numeral 3 '. Further, in the second embodiment, when the operating member 46 is laid down sideways, the upper opening of the air passage 24 is closed by the tip side (knob 49 side) portion thereof. In this way, when the operation member 46 is used to close the upper opening of the air passage 24, dust and dust do not enter the air passage 24, and the operation member 46 is used for operating the valve body as well as the air passage shielding member. Can be effectively used as. Further, in FIG. 3, the beverage-filled can 5 is housed in the container body 1. However, when the beverage in the can is hot, when the can is cooled, the empty space 16 is provided as in the case of the first embodiment. A negative pressure phenomenon occurs at. Then, in that case, the negative pressure of the void 16 in the container body 1 can be eliminated by operating the operation member 46 to the valve opening side. The other construction of the second embodiment is almost the same as that of the first embodiment.

In the bottle of the third embodiment shown in FIG. 4, the air passage 24 on the plug 2 side is provided with a hole 51 formed in the bottom wall of the plug main body 21, a void 52 inside the plug main body, and, for example, of the plug main body 21. It is composed of a hole 53 (which communicates with the outside air) formed in the side wall.
The hole 53 is not necessary in the structure in which the void 52 in the stopper body communicates with the outside air. Further, as the valve element 3, a pressure operated valve is adopted. The valve body 3 is installed so that the hole 51 in the bottom wall of the plug body can be opened and closed from the lower surface side. Further, the valve body 3 is biased in the upward valve closing direction by interposing the spring 54 between the receiving seat 35 provided on the valve rod 32 and the bottom wall of the plug main body 21. A relatively weak elastic force is used to support the lower power of the valve body 3 in its natural state.

In the bottle of the third embodiment, the valve body 3 maintains the closed state as long as the negative pressure in the void 16 in the container body 1 does not exceed the elastic force of the spring 54.
On the other hand, when the liquid W in the bottle cools and the inside of the container body 1 becomes a negative pressure below a predetermined level, the valve body 3 automatically opens due to the negative pressure state (empty inside the container body 1). The place 16 communicates with the outside air). Therefore, in the bottle of the third embodiment, the negative pressure state of the void 16 can be automatically canceled without any special valve opening operation. When the valve body 3 is opened, the negative pressure state of the void 16 is instantly released, and when the negative pressure state is subsequently released, the valve body 3 is released.
Is immediately closed by the urging force of the spring 51. Therefore, the time when the air passage 24 is opened is instantaneous, and even if the air passage 24 is opened and closed, the temperature decrease rate of the liquid W in the container body 1 is not so different from that in the completely sealed state. In the bottle of the third embodiment, a pressure actuated valve is used as the valve element 3, but the valve element 3 does not open unless the lower surface side thereof is in a negative pressure state below a predetermined level. Therefore, for example, when the bottle is in the upside down state and the liquid W in the bottle is in contact with the valve body 3, the void in the container body 1 (in this case, the void is located on the bottom side of the container body). The valve body 3 does not open even when the negative pressure is below a predetermined level.

In the bottle of the fourth embodiment shown in FIGS. 5 and 6, the air passage 24 on the plug 2 side is provided with a hole 55 provided in the bottom wall of the plug body 21, a void 56 in the plug, and a cover body. 22 and a cylindrical hole 57 (which communicates with the outside air) formed in the vertical direction. The cylindrical hole 57 is located immediately above the hole 55 in the bottom wall of the plug body, and the air passage 24 is formed in a straight line in the vertical direction. Also, the cylindrical hole 57 and the hole 55 in the bottom wall of the plug body are
Each has a diameter such that the straw 6 can be inserted therethrough. A flap-shaped pressure-operated valve is used as the valve element 3. The valve body 3 is installed so as to open and close the hole 55 in the bottom wall of the plug body from below. In the natural state, the valve body 3 closes the hole 55 from below, but when the space 16 in the container body 1 has a negative pressure higher than a predetermined level, the negative pressure causes the reference numeral 3 '(Fig. As shown in 5), the valve is automatically opened. Therefore, the bottle of the fourth embodiment operates similarly to that of the third embodiment. Further, the valve body 3 of the fourth embodiment has a straw 6
When it is inserted, it is pressed by the lower end of the straw 6 and retracts downward as shown in FIG. In the bottle of the fourth embodiment, when the liquid W in the bottle is to be drunk, the stopper 2 can be removed as in the conventional case, but if the straw 6 is used, the stopper 2 can be left attached. That is, as shown in FIG. 6, the straw 6 is inserted from above the plug body into a cylindrical hole 57, a hollow space 56 in the plug body, and a hole 55 in the bottom wall of the plug body.
It suffices to sequentially pass through and insert into the container body 1. As described above, in the bottle of the fourth embodiment, the liquid W in the container body 1 can be drunk by the straw 6 while the stopper body is still attached. Therefore, even if the liquid W in the container body 1 is swung, for example, in the container body 1, Liquid does not spill.

In the first to fourth embodiments, the same reference numerals in the drawings have the same function.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a bottle according to a first embodiment of the present invention.

FIG. 2 is a state change diagram of FIG.

FIG. 3 is a vertical sectional view of a bottle according to a second embodiment of the present invention.

FIG. 4 is a vertical sectional view of an upper half portion of a bottle according to a third embodiment of the present invention.

FIG. 5 is a side view with a left half of a bottle according to a fourth embodiment of the present invention as a section.

FIG. 6 is an explanatory view of the operation of FIG.

[Explanation of symbols]

1 is a container body, 2 is a plug body, 3 is a valve body, 4 is a valve body operating means,
6 is a straw, 10 is a shoulder ring, 11 is an outer wall, 12 is an inner wall, 13 is an opening, 15 is a bulge, 16 is a void, 17 is a small-diameter step, 22a is a cover, 23 is a plug packing, 2
4 is an air passage and 28 is a pouring passage.

Claims (6)

[Claims] 1. A container body (1) having a metal vacuum double wall structure in which a vacuum is provided between an outer wall (11) and an inner wall (12) and a plug body for tightly plugging an opening (13) of the inner wall (12). (2), the opening (13) is a wide mouth having substantially the same diameter as the inner diameter of the body of the container (1), and the plug (2) is screwed into the opening forming portion of the inner wall (12). Plug packing (2) for mating female screw (14) and plug (2)
3) is integrally formed with an annular bulge portion (15) serving as a stopper seat of 3), and the stopper body (2) has a space (16) in the container body (1).
An air passage (24) for communicating the air with the outside air, a valve body (3) for opening and closing the air passage (24), and a valve body operation for communicating the outside air by opening the valve body (3) from the outside. Means (4)
And a small diameter step portion (17) serving as a mouth portion is formed on the outer peripheral portion of the upper edge of the container body (1). 2. The bottle according to claim 1, wherein the air passage (24) is a pouring passage (28) for pouring out the liquid (W) in the container body (1). 3. A container body (1) having a metal vacuum double wall structure in which a vacuum is provided between the outer wall (11) and the inner wall (12) and a plug body for tightly plugging an opening (13) of the inner wall (12). (2), the opening (13) is a wide mouth having substantially the same diameter as the inner diameter of the body of the container (1), and the plug (2) is screwed into the opening forming portion of the inner wall (12). Plug packing (2) for mating female screw (14) and plug (2)
3) is integrally formed with an annular bulge portion (15) serving as a stopper seat of 3), and the stopper body (2) has a space (16) in the container body (1).
An air passage (24) for communicating the air with the outside air and a valve body (3) for opening and closing the air passage (24) are provided, and as the valve body (3), the pressure in the void (16) is at a predetermined level. A pressure actuated valve that opens only when the negative pressure is reached is adopted, and a small diameter step portion (17) serving as a mouth rest portion is formed on the outer peripheral portion of the upper edge of the container body (1). A bottle characterized by that. 4. The air passage (24) is formed in a straight line in the vertical direction so that the straw (6) can be inserted into the container body (1) from above the stopper body (2). The flap-shaped valve, which is pressed by the straw (6) and retracts downward when the straw (6) is inserted, is used as the above). 5. The plug body (2) is provided with a cover portion (22a) for covering the outside of a small diameter step portion (17) serving as a mouth rest portion, wherein the cover portion (22a) is provided. The bottle according to any one. 6. A shoulder ring (10) is attached to the upper outer surface of the outer wall (11) of the container body (1) by force fitting, and a small diameter step (17) serving as a mouth rest is formed on the shoulder ring (10). The bottle according to any one of claims 1 to 5, wherein: