JP3286199B2 - Liquid container stopper structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug structure for a liquid container such as a pot or a water bottle.

[0002]

2. Description of the Related Art
As the plug structure of the liquid container, for example, Japanese Utility Model 2-2097
There is an apparatus disclosed in Japanese Patent Publication No. In this plug structure, a liquid passage is opened and closed by pushing an operation member protruding from the plug body and driving the valve body. The operation member itself has a common form in which the operation member is protruded from the center of the upper surface of the stopper body so as to be able to be pushed.

Accordingly, it is a first object of the present invention to provide a compact liquid container plug structure having a novel operation member and having a small number of protrusions.

In the plug structure of the liquid container, a pair of cam members are provided on the plug body, and pins provided on the valve body are guided to both cam grooves, so that the valve body opens and closes the liquid passage. And the structure is complicated.

It is a second object of the present invention to provide a stopper structure for a liquid container which can employ a simple cam structure.

As another plug structure of a liquid container, for example, there is one disclosed in Japanese Utility Model Laid-Open Publication No. 7-20144. In this lid structure, as shown in FIG. 9, the plug 1 includes an outer plug 2 and an inner plug 3. The outer stopper 2 has a through hole 2 a on the bottom surface, and is attached to the upper opening of the liquid container body 4. The inner plug 3 is provided with a predetermined gap around the inner periphery of the outer plug 2. A valve 6 urged upward by a spring 5 is attached to the bottom of the inner plug 3. The valve portion 6a of the valve body 6 has a disk shape and closes the through hole 2a of the outer plug portion 2 from below. Further, a push button 7 and an operation arm 8 that is rotated by a pushing operation thereof are disposed above the inner plug portion 3. Push button 7
In the state before pushing in, the operating arm 8 is rotated in the horizontal direction, and the valve body 6 moves upward to close the through hole 2a.
In a state where the push button 7 is pushed in, the operating arm 8 rotates and tilts so as to push down the valve body 6 to open the through hole 2a.

However, in this plug structure, the contained liquid can be discharged only through a gap formed between the outer plug portion 2 and the inner plug portion 3. Therefore, it cannot be applied to a so-called “sake-drinking” type water bottle that can be drunk with a mouth directly.

Accordingly, a third object of the present invention is to provide a compact liquid container stopper structure having both liquid outlets for water injection and for direct drinking.

[0009]

According to the present invention, in order to achieve the first object, a stopper has a liquid outlet, a liquid passage communicating with the liquid outlet, and a valve for opening and closing the liquid passage. An operating means for driving the valve body by an external operation to open and close the liquid passage, wherein the operating means is exposed to at least a part of an outer peripheral wall of the plug body, It is constituted by a rotary operation member that opens and closes a liquid passage by driving a valve element by rotating the body in a circumferential direction.

According to the present invention, in order to achieve the second object, the rotary operation member is exposed at least on a part of the outer peripheral wall of the plug, and is rotated along the outer peripheral wall of the plug. Operating part and a cam part located inside the stopper,
One of the valve body and the cam portion is formed with an engaging portion located at a plugging position and an opening position in the vertical direction on the same circumference, and the other is formed with one of the engaging portions. An engagement receiving portion that engages and disengages is formed.

Further, in order to achieve the third object, the present invention provides the liquid outlet at two places, and the operating means is provided on a ceiling wall of a plug body in addition to the rotary operating member, A push operation member drives the valve body to open the liquid passage and communicates with the newly provided liquid outlet by a push operation member. . Thus, when the rotation operation member is rotated or the push operation member is pushed, the valve body is pushed down, the liquid passage is opened, and the liquid outlet corresponding to the plug is opened. When the liquid container is tilted, the stored liquid is discharged from the liquid outlet through the liquid passage.

[0012] When the valve body is driven by operation of one of the rotation operation member and the push operation member of the operation means to open the liquid passage, the operation preventing portion for preventing operation of the other operation means is provided. Preferably, it is formed on at least one of the operating means.

[0013] It is preferable that the valve body includes a closing means for closing the liquid passage when the temperature of the stored liquid is equal to or higher than a predetermined value.

The valve body includes an outer valve and an inner valve,
The first valve is formed by integrally driving the outer valve and the inner valve, and the second channel is formed by driving only the inner valve. If the temperature of the contained liquid is equal to or higher than a predetermined value. For example, the second valve may be closed by acting on the inner valve.

A lid for covering the stopper is screwed into the liquid container, and the operating means interlocks with the screwing operation of the lid, so that the valve body closes the liquid passage. It is preferable to form it on at least one of the lid and the operating member.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1A is a sectional view showing a plug 11 having a plug structure according to the present invention and a part of a liquid container body 12. The plug 11 generally includes a plug body 13, a valve 14, an operation ring 15, and a plug cap 16.

The plug body 13 has a substantially cylindrical shape, and as shown in FIG. 2 (e), a partition tube portion 17 extending inward is formed at the opening edge of the lower end of the plug body 13. In the side wall of the partitioning tube portion 17, rectangular holes 17a extending in the vertical direction at four equal portions are respectively formed. A shaft hole 17b is formed at the center of the ceiling wall of the partition tube part 17, and an insertion hole 17c is formed at a position 180 ° apart on both sides thereof. A water inlet 18 and a drinking spout 19 are formed at 180 ° apart at the upper opening edge of the plug body 13. Water injection port 18
Is formed by notching the wall surface of the upper opening edge of the plug main body 13 and extending the wall in a substantially U-shaped cross section from the notch edge toward the inside and the outside. The bottom of the water inlet 18
It gradually inclines upward toward the outside (Fig. 1
reference). On the other hand, the spout 19 is formed by projecting the upper opening edge of the plug body 13 upward from the outside. The upper opening of the plug body 13 extends outward,
A substantially cylindrical plug ring 20 is fixed thereto. The stopper main body 13 is a liquid container main body 12 to which a shoulder 12a is attached.
The stopper ring 20 is screwed into the shoulder body 12a, and the lower end opening edge is pressed into contact with the inner rear side of the mouth 12b via the stopper packing 21 to be fixed.

The valve element 14 comprises an outer valve 22, a slide member 23, an inner valve 24, a valve cover 25 and the like shown in FIGS.

As shown in FIG. 3 (a), the outer valve 22 has a cylindrical shape with a bottom and a plurality of communication holes 21 extending in a longitudinal direction in a side wall.
a is formed. At the lower end of the outer valve 22, a tubular portion 26 bulging outward is formed. The cylindrical portion 26 has an abutment portion 26a at an upper portion. At the center of the ceiling wall of the outer valve 22, a shaft portion 27 is protruded upward. In the ceiling wall of the outer valve 22, a plurality of insertion holes 30 are formed around the shaft portion 27.

As shown in FIG. 3 (b), the sliding member 23 has arms 32, 32 which are an example of the engaging portion of the present invention projecting from a position 180 ° away from the outer edge of the bottom plate 31. Things. The outer edge of the bottom plate 31 extends outward at positions corresponding to the arms 32, respectively, and forms a locking portion 31a. The arm 32 penetrates through an insertion hole 17 c formed in the ceiling surface of the plug body 13 and protrudes above the partition tube 17.

As shown in FIG. 3 (c), the inner valve 24 has a cylindrical shape with a bottom, similar to the outer valve 22, and has spring receiving portions 33a, 33b projecting vertically at the center of the ceiling surface. Have been. The lower opening edge of the inner valve 24 extends outward, and a packing 36 is disposed in a circumferential groove 35 formed in the vicinity thereof. When the inner valve 24 moves upward, the packing 36 comes into contact with the contact portion 26 a of the cylindrical portion 26 of the outer valve 22 to seal the lower end of the outer valve 22. Guide walls 37 are erected at two positions 180 ° apart from each other on the ceiling surface of the inner valve 24. The guide wall 37 has a substantially rectangular guide hole 37a extending vertically. The upper end of the guide wall 37 is bent outward so as to be guided by the inner peripheral surface of the outer valve 22.

As shown in FIG. 3 (d), the valve cover 25 has a cylindrical portion 25a formed at the center thereof, and a plurality of through holes 25b formed in the circumference thereof at equal intervals in the circumferential direction.
A closure spring 38a, which is a closure means of the present invention, is disposed on the inner periphery of the cylindrical portion 25a, and the auxiliary spring 3 is disposed on the outer periphery.
8b is provided. Closure spring 3
As 8a, a material such as a shape memory alloy or a bimetal that deforms to a predetermined length at a predetermined temperature is used.

The valve element 14 having the above structure is assembled as follows. First, the spring receiving portion 33 on the upper side of the inner valve 24
A bias spring 34 is disposed at a, and the locking portion 31 a of the slide member 23 is locked in a guide hole 37 a formed in the guide wall 37. Thereby, the bias spring 3
4 is located between the spring receiving portion 33a of the inner valve 24 and the bottom surface of the slide member 23 to urge the slide member 23 upward.

Next, the inner valve 24 and the slide member 23 are housed in the outer valve 22. At this time, the arm 32 of the slide member 23 projects upward through the insertion hole 30 of the outer valve 22. Further, a stopper spring 38a and an auxiliary spring 38b are disposed in a spring receiving portion 33b below the inner valve 24, and a valve cover 25 is mounted on an opening of the outer valve 22. As a result, the inner valve 24 is urged upward by the auxiliary spring 38b, and the packing 36 comes into close contact with the contact portion 26a.

In the valve body 14 assembled in this manner, the arm 32 of the slide member 23 passes through the insertion hole 17 c of the plug body 14 from below the plug body 13, and the shaft portion 27 of the outer valve 22.
With the valve spring 29 projecting from the shaft hole 17b.
The spring holding portion 28 is attached to the shaft portion 27 through the shaft body 27 to assemble the plug body 14.

As shown in FIG. 4, the operation ring 15 has a tubular configuration in which an outer peripheral wall 15a, which is an operation portion, and a ceiling wall 15b are connected at two locations on the outer peripheral portion by a connecting portion 15c. It is arranged rotatably along the outer circumference of the plug ring 20 provided on the main body 13. Ceiling wall 15 of operation ring 15
A center hole 15d is bored in b, and a cam portion 39 extends downward on the inner peripheral edge thereof. This cam part 39
Position the tip of the arm portion 32 of the slide member 23 at two positions 180 ° apart in the circumferential direction,
Positioning recesses 40a, 4 which are an example of the engagement receiving portion of the present invention
0b and the inclined surface 4 connecting the positioning recesses 40a and 40b.
0c. On the inner peripheral surface of the cam portion 39, a groove portion 41 is formed at an opposing position in a vertical direction. In addition, the first peripheral edge of the ceiling wall 15b is
A window 42 and a second window 43 are formed respectively.
The first window 42 is located on the side of the spout, and the second window 43 is located on the side of the water inlet.

The stopper cap 16 is substantially dish-shaped, and has a stopper body 13.
It is mounted on the upper opening of. As shown in FIGS. 2A and 2B, a through hole 16a is formed in the center of the plug cap 16, and a push button 44 is disposed therein so as to be vertically movable. At the lower opening of the push button 44, a locking projection 45 (see FIG. 1B) that protrudes outwardly constitutes an operation blocking section according to the present invention. Before the rotation of the operation ring 15, the locking projection 45
Corresponds to the position of the groove 41 of the operation ring 15 (see FIG. 5B). Therefore, the push button 44
Is possible. If the groove 41 is retracted by rotating the operation ring 15 (FIG. 6B)
), The locking projection 45 is the ceiling wall 15b of the operation ring 15.
Abut. Therefore, the push operation of the push button 44 cannot be performed. The lower opening edge of the push button 44 abuts on the spring retainer 28 provided on the outer valve 22,
The outer valve 22 can be pushed downward against the urging force of the valve spring 29. Stopper cap 16
The plug body 13 is positioned 180 ° away from the outer edge of the upper surface of the plug body.
The water inlet 46 and the water outlet 47, which are the liquid outlets according to the present invention, together with the water inlet 18 and the water outlet 19 (see FIG. 1B).
Notch 48 for water inlet and notch 49 for drinking spout
(See FIG. 2A). An operation piece 50 is slidably disposed in the notch for water inlet 48 in the horizontal direction.

As shown in FIGS. 2C and 2D, the operation piece 50 has a lid 51 for closing the water inlet 46 at one end, and an operation part 52 projecting upward. The operation piece 50
An annular portion 53 is formed on the other end side of the member, and a projection 54 for receiving a spring is provided at the end portion. A substantially U-shaped concave portion 55 is formed on the bottom surface of the annular portion 53, and a stopper surface 55a is provided at both ends thereof.
And an inclined surface 55b that is continuous with the bottom surface.
The protrusion 54 holds a spring 56 (FIGS. 1 and 5) between the operation piece 50 and the stopper cap 16. Thereby, the operation piece 50 is urged in a direction to protrude from the stopper cap 16.

In the plug 11 having the plug structure, when the stored liquid is poured into a cup or the like, the push button 44 is pushed in from the state of FIG.
As shown in (2), the outer valve 22 is moved down together with the inner valve 24 against the urging force of the valve spring 29. At this time, the locking projection 45 of the push button 44 is
Drops from 5a. Since the operation piece 50 projects sideways due to the urging force of the spring 56, the locking projection 45
The operation piece 50 extends from the inclined surface 55b to the bottom surface. As a result, the push button 44 maintains the depressed state,
Since the upper opening of the liquid container main body 12 maintains the open state, by tilting the liquid container main body 12, the stored liquid is supplied from the water inlet 46 through the first flow path indicated by the arrow A in FIG. Water can be injected. In the state where the operation piece 50 protrudes, the side surface thereof is positioned by the notch 60 of the plug body 13, so that the end surface of the second window 43 of the operation ring 15 abuts and the operation ring 15 cannot be rotated. , The mouthpiece 47 is kept closed.

When the water injection from the water inlet 46 is stopped, the operation part 52 of the operation piece 50 is pushed into the stopper cap 16 against the urging force of the spring 56. Then,
By the urging force of the valve spring 29, the locking projection 45 of the push button 44 slides on the inclined surface 55b from the bottom surface of the annular portion 53 of the operation piece 50 to reach the recess 55, and the push button 44 moves upward. As the outer valve 22 itself moves upward and the contact portion 26a contacts the plug packing 21, the upper opening of the liquid container body 12 is closed.

On the other hand, when the contained liquid is directly drunk from the spout 47, as shown in FIG.
5 is rotated until the connecting piece 15c comes into contact with the notch 70 of the plug 11, so that the first window 42 is located at the drinking spout 47 and the slide member 23 is pushed down by the cam 39. Due to the downward movement of the slide member 23, the inner valve 24 is
Is pressed down against the urging force of the auxiliary spring 38b, and the packing 36 of the inner valve 24 and the contact portion 26 of the outer valve 22
A gap is formed between the two. Thus, when the liquid container main body 12 is tilted and the mouth 47 is attached, the contained liquid is discharged through the second flow path indicated by the arrow B in FIG. 6A.

In this case, if the stored liquid is at a predetermined temperature or higher, the stopper spring 3 is set depending on the ambient temperature.
8a is extended, the inner valve 24 is forcibly moved upward against the biasing force of the bias spring 34, and the packing 36 seals the contact portion 26a of the outer valve 22, so that the liquid does not flow out. Therefore, when the liquid is directly attached to the drinking spout 47 and the temperature of the stored liquid is equal to or higher than the predetermined temperature, the liquid is not injected and there is no risk of burns. Of course, even in this case, it is possible to pour water into a container such as a cup by opening the water injection port 46 by the above operation.

In the above embodiment, the water inlet 46 and the drinking spout 47 are formed in the liquid container, but only one of them may be used. For example, FIG.
, A liquid container having only the water inlet 46 may be used. This liquid container is characterized by the configuration of the valve body 80 and the operation ring 81. As shown in FIG. 7B, the valve body 80 includes a bottom plate portion 82, a shaft portion 83 extending from the center thereof,
And an upper plate 84 formed above the shaft 83. A projection 84a is formed on the outer periphery of the upper plate portion 84 at least at one location (two locations in the embodiment) upward. Further, a spring receiving portion 85 is mounted on the upper end of the shaft portion 83. The operation ring 81 is shown in FIG.
As shown in (c), the outer peripheral wall 86 and the inner peripheral wall 87 are connected and integrated at a plurality of locations. Outer wall 86 is plug 1
1 are arranged along the outer peripheral surface, and there is no portion protruding outside. Therefore, the appearance of the liquid container can be made smart. On the other hand, in the lower part of the inner peripheral wall 87, first and second positioning recesses 89 and 90 continuous with the inclined surface 88 are formed by being cut out from the lower edge.

In this liquid container, when the operating ring 81 is rotated, the projection 84a of the valve body 80 is moved from the first positioning recess 89 located on the upper side to the second positioning recess located on the lower side via the inclined surface 88. 90. As a result, the valve element 80 moves downward to open the liquid passage, so that the liquid in the liquid container body 12 can be injected through the injection port 46. Conversely, when the operation ring 81 is rotated in the opposite direction, the projection 84a of the valve body 80 moves from the second positioning recess 90 to the first positioning recess 89, and the valve body 80
Move upward by the urging force of the valve spring 56. As a result, the liquid passage is closed, so that the liquid in the liquid container is not poured outside.

In the above-described embodiment, the substantially cylindrical operating ring 81 is used, but instead of the outer peripheral wall, as shown in FIG. 8, a lever 91 extending from the inner peripheral wall is used. You may.

Further, in the above-described embodiment, the liquid container having the structure in which the stopper main body 11 is merely provided at the upper opening of the liquid container main body 12 has been described, but the stopper 11 is disposed at the upper opening of the liquid container main body 12. The cover may be attached by screwing or the like so as to cover. In this case, it is preferable that the lid can be automatically closed if the lid is attached without noticing that one of the water inlet 46 and the drinking mouth 47 remains open. For example, an inclined surface which is gradually pressed into contact with the operation piece 50 by screwing is formed on the inner surface of the side wall of the lid. Thereby, even if the water inlet 46 remains open, it can be closed by the operation piece 50 and the valve 14 can be moved up to the closed state. A receiving portion (not shown) is formed on the outer peripheral surface of the operation ring 15, and a pressing portion (not shown) capable of pressing the receiving portion by a screwing operation is formed on the inner surface of the side wall of the lid. Thereby, the drinking ring 47 can be closed by rotating the operation ring 15 and the valve body 14 can be moved upward to be in the closed state.

In the above embodiment, the arm 32, which is an example of the engaging portion of the present invention, is formed on the valve body 14, and the positioning concave portions 40a, 40b, which are the example of the engaging receiving portion of the present invention, are operated. Although the ring 15 is formed, the engagement portion may be formed on the valve body 14 and the engagement receiving portion may be formed on the operation ring 15. And an engagement part may be formed in concave shape and the engagement receiving part may be formed in convex shape.

[0039]

As is apparent from the above description, according to the stopper structure of the liquid container according to the present invention, the valve body can be driven by the rotation of the rotary operation member. Can be provided.

In particular, since the valve body can be driven by the engagement portion and the engagement receiving portion formed on the valve body and the cam portion, the structure can be simplified as compared with the related art.

Further, since two liquid outlets are provided, for example, one can be used for water injection and the other can be used directly for drinking, and the use is wide.

Further, since an operation preventing portion is formed which disables the operation of one of the operation members when one of the operation members is operated, erroneous operation can be reliably prevented.

Further, since the closing means for closing the liquid passage when the liquid temperature is higher than a predetermined value is provided, for example, even if hot water is stored and one of them is directly used as a liquid outlet for drinking, it is erroneously made. There is no worry that the hot water will be poured out and cause burns.

Further, even when the liquid passage is forgotten to be closed, the liquid passage can be automatically closed by attaching the lid, so that the liquid leakage at the time of falling can be surely prevented.

[Brief description of the drawings]

FIG. 1A is a sectional view showing a plug structure of a liquid container according to an embodiment of the present invention, and FIG.

FIG. 2 is a sectional view (a) of the stopper cap of FIG. 1, another partial sectional view (b), a sectional view of an operation piece (c), a plan view (d) thereof, and a partial sectional view of a stopper body (e). ).

FIG. 3 is a sectional view (a) of an outer valve of the valve body of FIG. 1, a front view (b) of a slide shaft, a partial sectional view (c) of an inner valve, and a sectional view (d) of a valve cover.

FIG. 4 is a sectional view (a) and a bottom view (b) of the operation ring of FIG. 1;

FIGS. 5A and 5B are a cross-sectional view and a plan view showing a state in which a push button of the stopper cap of FIG. 1 is pushed.

FIGS. 6A and 6B are a cross-sectional view and a plan view showing a state in which the operation ring of FIG. 1 is rotated.

7A is a cross-sectional view showing a plug structure of a liquid container according to another embodiment, FIG. 7A is a partially cutaway perspective view of an operation ring of FIG. 7A, and FIG. 7C is a perspective view of a valve body of FIG. ).

FIG. 8 is a perspective view showing another example of the operation ring.

FIG. 9 is a cross-sectional view showing a plug structure of a liquid container according to a conventional example.

[Explanation of symbols]

 13 plug body 14 valve body 15 operation ring (rotation operation member) 17a rectangular hole (liquid passage) 44 push button (push operation member) 46 water inlet (liquid outlet) 47 drinking spout (liquid outlet)

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47J 41/00

Claims (6)

(57) [Claims] 1. A stopper, a liquid outlet, a liquid passage communicating with the liquid outlet, a valve for opening and closing the liquid passage, and an operation for driving the valve by an external operation to open and close the liquid passage. In the stopper structure of a liquid container provided with means, the operating means is exposed at least in a part of the outer peripheral wall of the stopper, and the valve is driven by rotating the stopper in the circumferential direction to open the liquid passage. The liquid outlet is provided at two places, and the operating means is provided on a ceiling wall of a plug body in addition to the rotary operating member, and a liquid passage is formed by driving a valve body by a pushing operation. And a push operation member for opening the liquid passage and communicating the liquid passage with a newly provided liquid outlet. 2. A plug, a liquid outlet, a liquid passage communicating with the liquid outlet, a valve for opening and closing the liquid passage, and an operation for driving the valve by an external operation to open and close the liquid passage. In the stopper structure of a liquid container provided with means, the operating means is exposed at least in a part of the outer peripheral wall of the stopper, and the valve is driven by rotating the stopper in the circumferential direction to open the liquid passage. An operating unit configured to be opened / closed and configured to be opened and closed, wherein the rotating operation member is exposed at least on a part of an outer peripheral wall of the plug, and is operated to rotate along the outer peripheral wall of the plug; And an engaging portion located at the closing position and the opening position in the up and down direction on the same circumference is formed on one of the valve body and the cam portion. Forming an engagement receiving portion that engages with or disengages from any one of the engaging portions; The operating means is provided on the ceiling wall of the plug, in addition to the rotary operating member, drives the valve body by a pushing operation to open the liquid passage, and connects the liquid passage to a newly provided liquid outlet. A stopper structure for a liquid container, comprising a pushing operation member. 3. An operation preventing portion for preventing operation of the other operation means when the valve body is driven by opening one of the liquid passages by operation of one of the rotation operation member and the push operation member of the operation means. 3. The stopper structure for a liquid container according to claim 1, wherein the stopper structure is formed on at least one of the operation means. 4. The valve body according to claim 1, wherein the valve body includes a stopper for closing the liquid passage when the temperature of the stored liquid is equal to or higher than a predetermined value. Liquid container stopper structure. 5. The valve body comprises an outer valve and an inner valve, wherein the outer valve and the inner valve are integrally driven to form a first flow path, while only the inner valve is driven. 5. The liquid according to claim 4, wherein the second flow path is formed, and if the temperature of the contained liquid is equal to or higher than a predetermined value, the liquid acts on the inner valve to close the second flow path. Container stopper structure. 6. The liquid container is screwed with a lid for covering the stopper, and the operating means interlocks with the screwing operation of the lid to prevent the valve from closing the liquid passage. The plug structure for a liquid container according to any one of claims 1 to 5, wherein the portion is formed on at least one of the lid and the operating means.