JPH0243327Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to liquid containers such as thermos flasks, and more specifically, the invention relates to a liquid container such as a thermos flask, and more specifically, a liquid injection passage that can be opened and closed with a stopper attached to the stopper hole of the liquid container body. The present invention relates to a portable liquid container in which a liquid receiving container is attached to the upper part of the liquid container main body.

(Prior art) A so-called one-touch stopper type in which a liquid injection passage that is opened and closed by a valve body is formed in the stopper body, and the liquid injection passage can be opened and closed while the stopper remains installed in the stopper hole of the liquid container body. Many liquid containers are known. In addition, in such a one-touch stopper type liquid container,
It is also known that a liquid receiving container is attached to the upper part of the liquid container body so as to cover the outside of the stopper.

However, in such a liquid container with a one-touch stopper and a liquid receiving container, once the liquid receiving container is attached, it is not possible to check the opening/closing status of the liquid injection passage from the outside, and sometimes the liquid injection passage cannot be checked from the outside. Sometimes people leave the passageway unnoticed and leave it open. If the liquid injection passage is left open in this way, the temperature of the liquid stored inside will drop faster, but it is also possible for the liquid container to be placed horizontally without realizing that the liquid injection passage is open. Sometimes, there was a problem in that the internal liquid inadvertently leaked out through the liquid injection passage. In particular, portable liquid containers are often carried or placed on their sides, and are therefore susceptible to liquid leakage if the user does not notice that the liquid injection passage is open.

(Purpose of the invention) In view of the above-mentioned problems of conventional liquid containers, the present invention was developed in a portable liquid container in which a liquid receiving container is attached to the upper part of the liquid container body. The purpose of this invention is to reliably close the formed liquid injection passage and to maintain the liquid injection passage in a closed state even when a large impact is applied to the liquid container.

(Means for Achieving the Object) The present invention provides a stopper in the stopper hole of a liquid container main body, in which a liquid injection passage and a valve body for opening and closing the liquid injection passage are respectively provided in the stopper body, and A portable liquid container in which a liquid receiving container covering the outside of the stopper body is removably screwed onto the upper part of the container body, further comprising: a valve body operating member for opening and closing the valve body; The valve body operating member is positioned such that when the valve body is in the open state, a part of the valve body operating member protrudes above the upper surface of the stopper body, and is in a screwed state with the liquid receiving container. The liquid receiving container is pushed downward from the protruding position to place the valve body in a closed state.

(Function) In the present invention, when the liquid receiving container is in a screwed state, the valve body operating member is pressed by the liquid receiving container and is pushed downward to the valve closing operation position. When the container is attached, the liquid injection passage opening/closing valve body inside the stopper is reliably closed.

(Embodiments) Several embodiments of the present invention will be described with reference to FIGS. 1 to 9. FIGS. 1 to 4 show the first embodiment, and FIGS. 5 to 7 show the first embodiment. Embodiment 2 A portable liquid container (thermos flask) according to the third embodiment is shown in FIGS. 8 and 9.

First, the configuration of common parts in the portable liquid containers of the first to third embodiments will be explained. Reference numeral 1 denotes a liquid container body;
The container member 5 has an annular shoulder member 4 on the top of a container member 5 having a vacuum-insulated double-wall structure in which an inner wall 5a and an outer wall 5b are made of stainless steel plates.

A vertically long plug hole 6 is formed in the upper center of the liquid container body 1. This plug hole 6 serves as an opening for liquid replenishment, and when pouring out liquid, a liquid injection passage inside the plug body, which will be described later, is used.

On the inner surface of the plug hole 6, a female thread 7 for screwing the plug is formed in the upper part, and a plug seat 8 for the plug is formed in the lower part.

Reference numeral 2 denotes a stopper, and the stopper 2 includes a liquid injection passage 13 in the stopper body 10, a valve element 14 for opening and closing the liquid injection passage 13, and a valve element operating member 15 for opening and closing the valve element 14. It is composed of:

A male thread 27 is formed on the outer surface of the plug body 10, and the plug body 2 is provided in the plug hole 6 so that it can be screwed into and removed from it. Note that the plug body 2 may be configured to simply fit into the plug hole 6 via a gasket or the like. Further, an annular packing 28 is attached to the outer peripheral portion of the lower end of the stopper main body 10 so as to be in contact with the stopper seat 8 of the stopper hole 6.

Liquid injection passage 13 formed within the stopper body 10
(Details will be explained later for each embodiment, but common parts will be explained for now) has a liquid inlet 13a on the lower surface of the stopper body 10.

The valve body 14 for opening and closing the liquid injection passage includes a valve plate 41 that can open and close the liquid inlet 13a of the liquid injection passage 13 from below.
A valve rod 42 that projects upward is integrally formed at the center of the upper surface of the valve. The valve body 14 is installed in the center of the stopper body 10 so as to be movable up and down. Further, this valve body 14 is always urged upward in the valve closing direction by a valve body pushing spring 19. And this valve body 1
4 is the valve body push-up spring 1 in its natural state.
9, the valve plate 41 is brought into pressure contact with the lower surface of the mouth edge of the liquid inlet 13a of the liquid injection passage 13, thereby closing the valve. When the valve body 14 is in the closed state, the upper end of the valve stem 42 extends upward to a position slightly lower than the upper surface 10a of the plug body 10.

A valve body operating member 15 for opening and closing the valve body 14 is provided on the top of the stopper body 10. The valve body operating member 15 will be described in detail later for each embodiment.

A liquid receiving container 3 is attached to the upper part of the liquid container body 1 so as to cover the outside of the stopper 2. That is, the liquid receiving container 3 is detachably attached by screwing a female thread 30 formed on the inner surface of the opening into a male thread 40 formed on the outer surface of the shoulder member 4. In addition, the liquid receiving container 3 is
In this example, it is used as a container for receiving liquid.
It may also be a protective cover that simply protects the stopper 2 or a cap that prevents dust from entering.

Next, the features of each embodiment will be explained.

In the portable liquid container of the first embodiment shown in FIGS. 1 to 4, the stopper body 10 of the stopper 2 has an outer cylindrical member 11 formed with a large diameter bulge 22 at the upper end of a cylindrical portion 21. and an inner cylinder member 12 which is located inside the outer cylinder member 11 and also has a large diameter bulging part 32 formed at the upper end of the cylinder part 31, and an upper lid 18 which covers the upper opening of the inner cylinder member 12. It is configured. Liquid injection passage 12
The outer diameter of the cylindrical portion 31 is formed to be considerably smaller than the inner diameter of the cylindrical portion 21 of the outer cylindrical member 11, and when the inner cylindrical member 12 is fitted into the outer cylindrical member 11, the outer cylindrical member cylindrical portion An annular liquid injection passage 13 is formed at a predetermined interval between the inner surface of the tube 21 and the outer surface of the inner cylinder member cylindrical portion 31 .

The outer cylindrical member 11 and the inner cylindrical member 12 are arranged so that the inner cylindrical member 12 is separated by vertical ribs (which serve as spacers) 23, 23 formed inward at four locations on the inner surface of the outer cylindrical member cylindrical portion 21. While positioned at a predetermined position within the cylindrical member 11, the two are force-fitted and coupled to each other at the lower portion. Further, on the outer surface of the inner cylinder member cylinder part 31, there are vertical ribs 2 on the inner surface of the outer cylinder member cylinder part 21.
Vertical ribs 33, 33 that abut against each other are formed to prevent the outer cylinder member 11 and the inner cylinder member 12 from rotating relative to each other.

The space formed between the outer cylindrical member 11 and the inner cylindrical member 12 becomes the liquid injection passage 13, the lower end opening of which becomes the liquid inlet 13a, and the upper end opening (the gap between each large diameter bulging part 22, 32). ) serves as the liquid outlet 13b.

The valve body 14 has its valve plate 41 connected to the inner cylinder member 12.
It is installed so as to extend upward through the lower guide hole 34. A water-stop gasket 29 is provided on the upper edge of the guide hole 34.

A spring receiving member 43 is fixed to the middle position of the valve body valve stem 42 in the vertical direction.
and the upper part of the mouth edge of the guide hole 34 (water stop gasket 29)
A valve body push-up spring 19 is interposed between the valve body and the upper part of the valve body.

The spring bearing member 43 has the function of guiding the valve body 14 together with the spring bearing. That is, the outer periphery of the spring receiving member 43 is formed with notches 44, 44, . , 35... are formed. By fitting the notches 44, 44, . It also prevents rotation in the horizontal plane.

In the portable liquid container of this first embodiment, the valve body operating member 15 is equipped with two push buttons, a push button 16 dedicated to the valve opening operation and a push button 17 dedicated to the valve closing operation. The valve closing operation is performed using a separate push button.

The valve opening operation push button 16 and the valve closing operation push button 17 are each formed to have a non-circular planar shape and a cross-sectional shape. The valve-opening push button 16 is located in the first sliding hole 36 formed directly above the valve stem 42 on the top surface 10a of the valve body, and the valve-closing push button 17 is located in the first sliding hole 36 formed directly above the valve stem 42 on the top surface 10a of the valve body. A second sliding hole 3 is formed on the side of the sliding hole 36 with a partition wall 38 in between.
7, each is installed so that it can slide up and down and cannot rotate within a horizontal plane.

The partition wall 38 in the valve opening operation push button 16
A vertically elongated cutout window 46 is formed in the side wall portion on the opposite side, and a hanging piece 48 of a leaf spring 47 bent into a shape is arranged in the cutout window 46.
This leaf spring hanging piece 48 has elasticity in the inner and outer directions (in the direction toward and away from the partition wall). Further, an outward claw 49 that can be engaged with the lower end 38a of the partition wall 38 is formed at the lower part of the leaf spring hanging piece 48. The lower surface side of this outward claw 49 is an inclined surface 50 that slopes downward inward. When the outward claw 49 of the valve opening operation push button 16 is engaged with the lower end 38a of the partition wall, the upper surface of the valve opening operation push button 16 is connected to the upper surface 10a of the stopper body.
(in the illustrated example, they are flush with each other).

The partition wall 38 in the valve closing operation push button 17
A hanging piece 58 that extends further downward is integrally formed at the lower end of the side wall 57 on the side opposite to . At the lower end of this hanging piece 58, the lower end 38 of the partition wall 38 is attached.
An inward pawl 59 that can be engaged with a is formed. As shown in FIG. 3, this inward pawl 59 is formed within a predetermined height range in the vertical direction so as to obtain a predetermined valve lift H. The valve closing push button 17 is prevented from slipping out above the stopper main body 10 by engaging the inward pawl 59 with the lower end 38a of the partition wall. This valve closing operation push button 17 is attached in a state where it is biased upward by a spring (coil spring) 56.
Further, when the inward claw 59 of the valve closing push button 17 is engaged with the lower end 38a of the partition wall (the state shown in FIG. 3), the top surface of the valve closing push button 17 is lower than the top surface 10a of the stopper body. It is positioned so that it protrudes considerably upward.

The outward pawl 49 on the valve opening push button 16 side and the inward pawl 59 on the valve closing push button 17 side are adapted to selectively engage with the lower end 38a of the partition wall. When the facing claw 49 is engaged with the lower end 38a of the partition wall (the state shown in FIG. 2), the inward claw 59 abuts against the inclined surface 50 of the outward claw 49 from below, and conversely, the inward claw 59 abuts against the inclined surface 50 of the outward claw 49. When engaged with the lower end 38a of the partition wall (the state shown in FIG. 3), the outward pawl 49 abuts against the lower surface of the inward pawl 59 from below.

Also, an outward claw 49 on the push button 16 side for opening the valve.
is engaged with the lower end 38a of the partition wall (second
), the valve opening operation push button 16 is connected to the valve body 14.
Therefore, the valve body 14 is maintained in the closed state by the valve body push-up spring 19.
Further, when the valve opening operation push button 16 is pressed from the state shown in FIG. 3, and comes to abut against the lower surface of the inward claw 59, as shown in FIG. At this time, the valve opening operation push button 16 is pressed against the valve body 14.
(The upper end of the valve stem 42) is pushed down against the valve body push-up spring 19 to open the valve body 14. In the state shown in FIG. 3, the valve-opening push button 16 is urged upward by the valve-pushing spring 19 via the valve body 14, but the outward pawl 49 of the leaf spring 47 By abutting against the lower surface of the inward claw 59,
The valve opening operation push button 16 is never moved upward from the downward movement position shown in FIG.

When pouring out liquid, by tilting the liquid container with the valve open as shown in FIG. 3, the liquid in the inner container 5a can be poured out to the outside through the liquid injection passage 13 inside the stopper.

When closing the valve from the open state shown in FIG. 3, the valve closing operation push button 17 is pressed. Then, the lower surface of the inward pawl 59 presses the outward pawl 49, causing the outward pawl 49 to bend inward, and at the point when the engagement state between the inward pawl 59 and the outward pawl 49 ends. The valve opening operation push button 16 is moved upward together with the valve body 14 by the valve body push-up spring 19, and the inward claw 5
9 and the outward pawl 49 are mutually moved up and down to switch to the closed state shown in FIG.

In this first embodiment, the liquid receiving container has an outer tip 3 and an inner tip 3a housed inside the outer tip 3.

The outer tip 3 is constructed by disposing a cylindrical body 62 made of stainless steel plate so as to cover the outer surface of a tip main body 61 made of synthetic resin, and holding the cylindrical body 62 with a retaining ring 63. . That is, the cylinder body 6
2 is sandwiched and held between a circumferential groove provided at the outer edge of the opening of the tip body 61 and a retaining ring 63 that is forcefully fitted onto the outer peripheral surface of the bottom of the tip body 61. If the retaining ring 63 is made of an elastic material such as a soft synthetic resin or rubber, a buffering effect will occur when the retaining ring portion collides with another article. Further, the retaining ring 63 can be made in a different color from the tip body to enhance the design effect.

The outer tip 3 is attached to the outside of the stopper 2 with the inner tip 3a placed over the top of the stopper 2.

In addition, this outer tip 3 is connected to the external thread 40 of the shoulder member 4.
When completely screwed together, as shown in Fig.
The upper surface of the valve closing operation push button 17 (usually protruding upward from the upper surface 10a of the stopper body) is forcibly pushed down (that is, it is operated in the valve closing operation direction).
It's becoming like that. Note that this tip 3 may be a protective cover, a cap, etc. as described above. Therefore, even when the valve body 14 is in the open state as shown in FIG. Push button 17 for opening the valve on the inside
, and the valve body 14 automatically and reliably closes. In addition, in the portable liquid container of this embodiment, the liquid receiving container 3 that acts to close the valve body 14 is attached to the liquid container main body 1 by screwing, so that, for example, if the liquid container is dropped, Even if a large impact is applied to the liquid container as in the case of a liquid container, the liquid receiving container 3 will not come off inadvertently, and the valve body 14 will therefore be maintained in the closed state.

In FIG. 1, numerals 51 and 52 are body members 5b.
A handle 53 is interposed between the upper and lower rings 51 and 52, which are rings provided on the upper and lower parts of the outer surface. This handle 53 is provided with arm pieces 54, 54 at each of its upper and lower ends, and each arm piece 5
The tips of rings 4 and 54 are pivotally attached to rings 51 and 52 by shafts 55, as shown in FIG. When not in use, the handle 53 is stored close to the outer surface of the liquid container body 1, as shown by the chain line in FIG. 4, and when in use, it can be pivoted outward as shown by the solid line. Note that this liquid container can be carried horizontally by holding the handle 53.

Further, in FIG. 1, the reference numeral 64 indicates a getter material for maintaining a vacuum provided on the inner surface of the bottom portion of the body member 5b, and the reference numeral 65 indicates a getter material presser.

The portable liquid container of the second embodiment shown in FIGS. 5 to 7 is a modification of the first embodiment, and has an outward claw 6 on the valve opening push button 16 side.
9 and the hanging piece 68 are integrally molded with the push button part. In order to provide elasticity in the inner and outer directions, the hanging pieces 68 are provided at both ends of the range L on the side wall in order to separate the part of the side wall 67 facing the partition wall 38 by a predetermined length range L, as shown in FIG. Vertical cut grooves 67a, 67a are formed.
Incidentally, in this second embodiment, the inner tip is omitted.

In the portable liquid container of the third embodiment shown in FIGS. 8 and 9, the stopper body 10 is constructed by covering the upper part of a single-layer cylindrical member 71 with an upper lid 72. As shown in FIGS. The liquid injection passage 13 is composed of an upwardly directed recess 73 provided in the lower part of the stopper body 10 and a passage 74 formed in the side wall of the recess. When the plug body 2 is installed, this port 74 is connected to the outer surface of the plug body 10 (part of which has a non-threaded part) and the inner surface of the plug insertion hole 6 (which also has a part of which has a non-threaded part). In addition, the non-threaded portion is recessed outward) and opens toward a gap (which becomes the stopper external injection liquid passage 75).

In addition, in the portable liquid container of this third embodiment, the valve body operating member 15 is a one-piece plate member 8 that is oriented horizontally.
0 is attached to the upper part of the stopper main body 10 so as to be able to swing vertically like a seesaw. This plate member 80 has an intermediate portion on the lower surface side with an axis 8
1 is supported by the plug body 10, and the plate member 8
When the part (which becomes the valve opening operation part) inward from the shaft support at 0 is pressed, the plate member 80 is tilted as shown in FIG. 9, and the valve body 14 is opened. In the valve open state (inclination state of the plate member) shown in FIG. 9, the outer end of the plate member 80 (which becomes the valve closing operation part 87) protrudes upward from the upper surface 10a of the stopper body 10. Moreover, the plate member 80 has a plate spring 83.
It is designed to be held in a tilted position by the following. Then, when the valve closing operation part 87 is pressed from the inclined state (valve open state) of the plate member 80, the state in which the plate member 80 is held in the inclined position by the plate spring 83 is released (the plate member 80 becomes the horizontal position), and the valve body 14 is The valve will close.

In addition, in the portable liquid container of the third embodiment, when the liquid receiving container 3 is attached (screwed) to the shoulder member 4 with the valve in the open state shown in FIG. The valve body operating member 15 is forcibly operated in the valve closing direction by pressing the valve closing operation portion 87 of the valve body operating member 15 that protrudes upward from the top surface 10a of the stopper body. .

In addition, in the above-mentioned second embodiment and third embodiment,
The members having the same reference numerals as those in the first embodiment have the same functions as those in the first embodiment, and the explanations thereof will be based on those in the first embodiment.

(Effect of the invention) As is clear from the above description, in the portable liquid container of the present invention, when the liquid receiving container 3 is in the screwed attached state, the valve body operating member 15 is pressed by the liquid receiving container 3 and forced. Therefore, when the liquid receiving container 3 is installed, the liquid injection passage opening/closing valve body 14 in the stopper 2 is reliably closed, and if the valve body operating member Even if the user forgets to close the valve in step 15, the valve can be automatically closed by screwing on the liquid receiving container 3. Also, liquid receiving container 3
is attached by screwing, so even if a large impact is applied to the liquid container, such as when the liquid container is dropped, the liquid receiving container 3 will not come off inadvertently, and the valve will remain intact. There is also the effect that the valve body 14 will not be opened inadvertently, improving safety.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a portable liquid container according to a first embodiment of the present invention, FIGS. 2 and 3 are state change diagrams of FIG. 1, and FIG. 4 is a plan view of FIG. 1.
5 is a vertical sectional view of the top of a portable liquid container according to a second embodiment of the present invention, FIG. 6 is a plan view of the stopper of the portable liquid container of FIG. 5, and FIG. 7 is a top view of the portable liquid container of FIG. FIG. 8 is a top vertical sectional view of the portable liquid container according to the third embodiment of the present invention, and FIG. 9 is a state change diagram of FIG. 8. 1... Liquid container body, 2... Stopper, 3, 3a...
...Liquid receiving container, 6...Bung hole, 10...Bung body, 10
a...Top surface, 13...Liquid injection passage, 14...Valve body,
15... Valve body operating member.

Claims (1)

[Scope of utility model registration request] A plug body 2 is provided in the plug hole 6 of the liquid container main body 1, and a plug body 2 is provided in the plug body 10, each having a liquid injection passage 13 and a valve body 14 for opening and closing the liquid injection passage 13. It is a portable liquid container in which a liquid receiving container 3 or 3a covering the outside of the stopper body 2 is removably screwed together, and the stopper body 10 has the valve body 1.
A valve body operating member 15 is provided which can open and close the valve body 14, and the valve body operating member 15 is configured to open and close the valve body 14 when the valve body 14 is in the open state.
5 is located so as to protrude upward from the upper surface 10a of the stopper body 10, and when the liquid receiving container 3 or 3a is in the screwed state, it is pushed downward by the liquid receiving container from the protruding position, A portable liquid container characterized in that the valve body 14 is positioned in a closed state.