JPH0529447B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a liquid container in which a liquid volume display tube is connected to a lower opening of an inner container having an upper opening and a lower opening via a connecting tube. .

(Prior Art) A known example of a liquid container that houses an inner container having an upper opening and a lower opening in an outer case, and is equipped with a liquid volume display tube for displaying the liquid volume in the inner container to the outside. For example, there is Japanese Utility Model Application No. 58-109421.

In the liquid container of this Japanese Utility Model Publication No. 58-109421,
A communication pipe made of a separate member is attached to a lower opening provided at the bottom of the inner container made of a steel plate, and the lower side of the liquid level display tube is connected to this communication pipe via an L-shaped connecting pipe.

(Problem to be Solved by the Invention) However, in the above-mentioned known liquid container, the communication tube (to which the liquid volume display tube is connected) at the bottom opening of the inner container is formed separately from the inner container, and the communication tube is formed separately from the inner container. Since the tube must be installed watertightly at the bottom opening of the inner container,
There were problems in that the connection structure of the liquid level display tube was complicated and the work of attaching the communication tube to the lower opening of the inner container was troublesome.

The present invention has been made in view of the above-mentioned problems with the known liquid containers, with the aim of simplifying the connection structure of the liquid volume display tube.

(Means for Solving the Problems) As a means for solving the above problems, the liquid container of the present invention is made of a vacuum double bottle, has an upper opening and a lower opening, and has a cylindrical communicating tube in the lower opening. is housed in an outer case, and a liquid volume display tube is connected to the communication pipe via a connection pipe, while the connection pipe is connected to the liquid volume display from the base connected to the communication pipe. The pipe is characterized in that the entire length up to the tip end to which the pipe is connected is formed by integral molding, and the base part of the connecting pipe is tightly fitted directly into the communicating pipe without using a packing.

(Function) In the liquid container of the present invention, the inner container is made of a vacuum double bottle, and the communication tube for connecting the liquid quantity display tube is integrally formed in the lower opening of the inner container. No need to install. In addition, the liquid level display tube is connected to the communication tube via a connecting tube, and the entire length of the connecting tube from the base connected to the communication tube to the tip connected to the liquid level display tube is integrally molded. Since the base of the connecting tube is tightly fitted directly into the communicating tube without using a packing, the liquid volume indicating tube can be connected with a simple structure.

(Effects of the Invention) In the liquid container of the present invention, the communication pipe is integrally formed at the lower opening of the inner container made of a vacuum double bottle, so there is no need for a separate component to form the communication pipe. Moreover, there is no need to install a communication pipe. In addition, since the communication pipe and the liquid level display tube are connected by only a single connecting pipe, and the base of the connecting pipe is tightly fitted directly into the communication pipe without using a packing, the liquid level display tube This has the effect of simplifying the connection structure.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 6. The liquid container of the embodiment has an upper opening 18 for replenishing liquid inside the outer case 4 and an opening 18 for dispensing liquid. An inner container 5 made of a double-ended vacuum bottle with a lower opening 19 formed therein is accommodated, and a shoulder member 6 and a base member 3 integrated with a bottom member 54 are attached to the upper and lower parts of the outer case 4, respectively. , the shoulder member 6
The plug body 2 is attached to a plug insertion hole 8 formed approximately in the center of the plug body.

A female thread 56 is formed in the bottom member 54 portion, which is a part of the base member 3, so as to surround the lower opening 19 of the inner container 5, and a circular male thread 20 is formed in this female thread 56. They are screwed together to tighten the inner container 5.

The inner container 5 is located in the center of the stopper insertion hole 8 of the shoulder member 6.
A liquid supply port 7 communicating with an upper opening 18 is formed. This liquid supply port 7 is opened and closed by a plug body 2 attached to a plug insertion hole 8.

The outer periphery of the liquid supply port 7 is an annular dish-shaped portion 9 . The upper part of this dish-shaped part 9 is covered by the lower surface of the stopper 2 when the stopper 2 is closed.

A recess 30 for accommodating a liquid receiving container (such as a cup) is formed in the base member 3 and is recessed from one side of the liquid container toward the center.

The lower opening 19 of the inner container 5 is formed to have a relatively small diameter. Further, a cylindrical communication pipe 19a that projects downward is integrally formed in the lower opening 19.

The communication pipe 19a of the lower opening 19 of the inner container has a base 5 of a connecting pipe 51 for connecting the liquid quantity display pipe 11.
1a are directly connected without using a gasket. This connecting pipe 51 also serves as the proximal end portion of the liquid pouring passage 10 for guiding the liquid in the inner container 5 to the outside.

The connecting pipe 51 has its tip 51b facing outside the outer periphery of the annular screw 20 and into the space 55 between the bottom member 54 and the bottom cover member 24 disposed further below the bottom member 54. It is installed in an upright position.

A proximal end 52 a of a liquid spouting tube 52 that constitutes a distal end portion of the liquid spouting passage 10 is connected to a distal end 51 b of the connecting tube 51 . In addition, this base end portion 5
2a also serves as a base end side connection portion of the liquid volume display tube 11.

The distal end portion 52b of the liquid spouting pipe 52 serves as a spout for pouring out the liquid, and is opened downward through the bottom cover member 24 toward the liquid receiving container housing recess 30. There is.

A valve member 13 for opening and closing the inside of the liquid spouting pipe 52 is provided inside the liquid spouting pipe 52 so as to be slidable in the inside and outside directions. This valve member 13 is constructed by providing a valve 16 at the inner end of a valve stem 15. Further, this valve member 13 is urged in the valve closing direction (outward direction) by a spring 17 interposed between the outer end portion of the valve stem 15 and the liquid pouring passage member.

The liquid level display tube 11 has connecting tubes 3 at the upper and lower parts of a vertically long transparent tube section 31 that serves as a liquid level display section.
2 and 33 are attached.

The lower connecting tube 33 (see FIG. 5) of the liquid volume display tube 11 is formed continuously with the base end 52a of the liquid pouring tube 52, and connects the base end 52a with the distal end of the connecting tube 51. 51b, the liquid quantity display tube 11 is connected to the connecting tube 51. The proximal end of the lower connecting tube 33 of the liquid volume display tube 11 is opened into the liquid outlet tube 52 on the upstream side of the valve member 13 where the valve 16 is installed.

The transparent tube part 31 of the liquid level display tube 11 is connected to the outer case 4.
It is installed vertically on the outside of the

Upper opening 3 of upper connecting tube 32 of liquid level display tube 11
2a opens upward from the dish-shaped portion 9 of the shoulder member 6 through a vertical hole 36 formed in the shoulder member 6. In this embodiment, the distal end portion of the upper connecting tube 32 is formed of an elastic tube such as a rubber tube, and the distal end of the upper connecting tube 32 is press-fitted into the vertical hole 36 from below. ing. The upper end opening 32a of the upper connecting pipe 32 is exposed above the upper surface of the dish-shaped portion 9 of the shoulder member 6, as shown in FIG. When the plug body 2 is inserted into the plug insertion hole 8 (when the plug is closed), the lower surface of the stepped portion 2a formed on the plug body 2 comes into contact and is covered. Further, a small groove 34 is formed at the upper end of the upper connecting tube 32 to serve as a minute ventilation passage to keep the upper part of the liquid level display tube 11 slightly in communication with the outside air even when the stopper 2 is closed. (See Figures 5 and 6). The small groove 34 has a small passage area that allows air to circulate, and even if the liquid container falls over, the liquid in the liquid volume display tube 11 will flow through the small groove 34.
Almost no leakage is made to the outside through the

A liquid volume display panel 12 is provided on the outside of the outer case 4 and is provided with a viewing window 21 at a position corresponding to the transparent tube portion 31 of the liquid volume display tube 11. The liquid level display panel 12 is constructed by integrally forming a bottom cover member 24 portion that covers the lower side of the bottom member 54 at the bottom of a vertical panel portion 23 that covers the outside of the liquid level display tube 11.

A valve operating member mounting portion 22 for mounting a valve operating member 14 for operating the valve member 13 is formed in a vertical panel portion 23 portion of the liquid level display panel 12.

The valve operation member 14 has a horizontal operation section 14 on the upper part.
a and a vertical push plate portion 14b at the bottom.

The valve operating member mounting portion 22 is configured by recessing a portion of the vertical panel portion 23 inward so that the valve operating member 14 can be guided vertically along the recessed wall 25. .

A pivotably supported intermediate lever 28 is interposed between the lower end of the push plate portion 14b of the valve operating member 14 and the outer end of the valve stem 15 of the valve member 13. When the operating member 14 is pushed down, the intermediate lever 28 is rotated by the push plate portion 14b, and the valve stem 15 of the valve member 13 is moved inwards by the intermediate lever 28 against the spring 17. (valve opening direction).

Further, the valve operating member 14 is installed so that its operating portion 14a does not protrude beyond the outer surface of the liquid level display panel 12, and when the valve operating member 14 is pressed, the valve operating member 14 is placed in the recess of the valve operating member mounting portion 22. This is done by inserting a finger into the entry part 26.

The valve operating member 14 is urged upward by a spring 17.

As shown in FIGS. 3 and 4, the plug 2 has a pair of left and right locking members 4 provided on the plug 2.
0 and 40 to or from the side wall surface 8a of the plug insertion hole 8.
It is configured so that it can be locked while installed inside the plug or can be unlocked from the plug insertion hole 8. That is, this pair of locking members 40, 4
0 is installed so as to be slidable in the horizontal direction toward or away from the stopper 2,
In addition, when the locking members 40, 40 are separated from each other, the locking pieces 41, 41 at the tips thereof penetrate the side wall 2b of the plug 2 and protrude outward, so that the side wall surface of the plug insertion hole 8 The locking receiving part 44 formed in 8a,
44 and acts to lock the plug body 2, and conversely, when the respective locking members 40, 40 are brought close to each other, the locking pieces 41, 41 are engaged with the plug insertion hole side wall surface 8a. The stopper body 2 can be removed from the stopper insertion hole 8 by separating from the locking receiving portions 44, 44. Also, these two plug locking members 40, 4
0 is biased in a direction away from each other (in the locking direction) by a spring 43 interposed between the two locking members 40, 40. The two plug locking members 40, 40 can be moved in the direction toward each other (in the unlocking direction) by inserting fingers into the finger insertion holes 42, 42 formed on the top surface of the plug 2 and pinching them. (See Figure 4).

A stopper 45 is provided at the lower part of the vertical panel portion 23 of the liquid amount display panel 12 for restricting the rotation of the intermediate lever 28 in the liquid pouring direction when liquid is not being poured.
is provided. This stopper 45 is attached to the vertical panel portion 23 so as to be slidable in the vertical direction, and when the stopper 45 moves upward (first
When the stopper 45 is in the position shown in the figure, the intermediate lever 2
8, and conversely, when the stopper 45 moves downward, the protrusion 46 formed on the inner surface of the stopper 45 is a part of the intermediate lever 28 (part 28a).
The liquid dispensing direction of the intermediate lever 28 (the first
Rotation in the counterclockwise direction (in the figure) is restricted.

In FIGS. 1 to 6, reference numeral 29 is a handle for suspending the liquid container, 35 is a groove formed at the edge of the liquid supply port 7 for supplying air into the inner container 5, and 37 is a rotating handle. A stand 39 indicates a protective case for protecting the outer surface of the inner container 5.

In the liquid container of this embodiment, when the stopper 45 is in the inactive state, when the valve operating member 14 is pushed down by inserting a finger into the recess 26 of the liquid level display panel 12, the intermediate lever 28 is rotated by the valve operating member 14. Then, by opening the valve 16 of the valve member 13 with the intermediate lever 28, the liquid in the inner container 5 is passed through the liquid spouting passage 10 and into the tip spout 52b.
It can be poured outside. In this case, the operating portion 14a of the valve operating member 14 is connected to the liquid amount display panel 1.
Since it does not protrude from the outer surface of the valve operating member 14, it is almost impossible for a body or an article to inadvertently come into contact with the operating portion 14a of the valve operating member 14, and erroneous pouring out of liquid is prevented as much as possible. . Furthermore, if the liquid container is accidentally overturned, the liquid in the liquid volume display tube 11 will flow toward the upper end opening 32a of the liquid volume display tube 11, but the upper end opening 32a of the liquid volume display tube 11 will close to the stopper 2.
Since the top opening 32 is covered by
No liquid flows out from a.

Note that when the liquid in the inner container 5 is dispensed, negative pressure is created inside the inner container 5 and the liquid volume display tube 11. Since each of the grooves 34 communicates with the outside air, air is immediately replenished.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a liquid container according to an embodiment of the present invention, FIG. 2 is a view taken in the direction of the arrow in FIG. FIG. 5 is a perspective view of a liquid volume display tube used in the liquid container shown in FIG. 1, and FIG. 6 is a partially enlarged sectional view of the liquid container shown in FIG. 1. 4...Outer case, 5...Inner container, 11...Liquid level display tube, 18...Top opening, 19...Bottom opening,
19a...Communication pipe, 20...Annular screw, 24...
Bottom cover member, 51...connecting tube, 51a...connecting tube base, 51b...connecting tube tip, 52...liquid spouting tube, 54...bottom member, 55...space.

Claims (1)

[Claims] 1. Made of vacuum double bottle with upper opening 18 and lower opening 19
and a cylindrical communication pipe 19a in the lower opening 19.
is housed in the outer case 4, and the liquid volume display tube 11 is connected to the communication tube 19a via a connection tube 51, and the connection tube 51 is connected to the communication tube 19a. The entire length from the base 51a to the tip 51b to which the liquid volume display tube 11 is connected is formed by integral molding, and the base 51a of the connection tube 51 is connected to the communication tube 19.
A liquid container, characterized in that the liquid container is tightly fitted directly into the container without using a gasket.