JPH0517103B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention provides a liquid amount display tube for displaying the liquid amount in the inner container to the outside on the outer side of the inner container housed in the outer case. It relates to liquid containers.

(Prior art) A thermos flask (Utility Model Publication No. 47-3657) shown in FIG.
No.).

In the known liquid container shown in FIG. 12, the liquid volume indicator tube 11 is installed in a state housed in the outer case, so the outer case has a larger diameter than the inner container 5. There was a problem that the entire liquid container became larger.

Furthermore, among liquid containers of this type with a liquid volume display tube, there is one disclosed in Japanese Utility Model Application Publication No. 57-90016. In the liquid container disclosed in Japanese Utility Model Application Publication No. 57-90016, a liquid volume display tube is installed on the outside of the outer case, and the problems of the known liquid container shown in FIG. 12 can be improved.

However, in the liquid container disclosed in Japanese Utility Model Application Publication No. 57-90016, the outer case and the shoulder member provided on the upper part of the outer case have a special push-up plate that moves the upper edge of the outer case against the lower surface of the outer periphery of the shoulder member. (the push-up plate is fixed to the lower surface of the shoulder member with screws), so the fixing structure between the outer case and the shoulder member is complicated and the fixing work is troublesome (the push-up plate is fixed with screws). (need to be stopped).

(Purpose of the invention) In view of the problems of the above-mentioned known liquid containers, the present invention provides a liquid container that can be made compact even if it is equipped with a liquid volume display tube, and that also allows for easy assembly of the outer case and shoulder member and the liquid volume. It is an object of the present invention to provide a liquid container in which work such as assembling a display tube can be easily performed, and the liquid volume display tube can be positioned using existing members.

(Structure of the Invention) The present invention provides a liquid container that includes a shoulder member attached to the upper part of an outer case, an inner container accommodated in the outer case, and a liquid volume display tube of the inner container. The outer case and the shoulder member are coupled by force fitting, and the liquid level display tube is formed by connecting connecting tubes to the upper and lower parts of the transparent tube serving as the liquid level display section, respectively, and the transparent tube is connected to the outer case. A liquid level display panel installed vertically on the outside of the case and forming a viewing window is attached to the outer surface of the outer case so as to cover the outside of the transparent tube, and when the outer case and the shoulder member are forcefully fitted, The transparent tube and the upper connecting tube are connected to each other outside the outer case by a connecting gasket, with the upper connecting tube facing the outside of the outer case through an opening formed in the outer case, and the opening has the upper connecting tube interposed therebetween. The liquid volume display panel is characterized in that the transparent tube is formed at a position corresponding to a viewing window of the liquid level display panel.

(Function) In the liquid container of the present invention, since the outer case and the shoulder member are coupled by force fitting, they can be coupled simply by fitting the outer case and the shoulder member to each other. . Also, connect connecting tubes to the top and bottom of the transparent tube that will serve as the liquid level display section, respectively.
Moreover, since the transparent tube is installed outside the outer case, even if the device is equipped with a liquid amount display function, there is no need for a space between the outer case and the inner container for installing the liquid amount display tube. In addition, since the upper connecting pipe is exposed to the outside of the outer case through the opening formed in the outer case when the outer case and the shoulder member are forcibly fitted,
The upper connecting tube and the transparent tube can be connected with a connecting gasket outside the outer case. moreover,
The opening formed in the outer case is formed at a position that positions the transparent tube at a position corresponding to the viewing window of the liquid level display panel with the upper connecting tube interposed therebetween.
the upper connecting tube is positioned within the opening;
Moreover, when the liquid level display tube is assembled, the transparent tube is accurately positioned at a position corresponding to the viewing window.

(Effect of the invention) The liquid container of the present invention has the following effects.

(1) Since the outer case and the shoulder member are connected by force fitting, it is easy to assemble the two.

(2) Since the transparent tube that serves as the liquid level display is installed vertically on the outside of the outer case, there is no need for space for installing the transparent tube between the outer case and the inner container. The entire liquid container can be made compact considering its diameter.

(3) Connecting tubes are connected to the upper and lower parts of the transparent tube, and the upper connecting tube and the transparent tube are connected with a connecting gasket outside the outer case.
The entire liquid level display tube can be easily assembled.

(4) Since the upper connecting pipe is exposed to the outside of the outer case through the opening of the outer case when the outer case and shoulder member are force-fitted, even after the outer case and shoulder member are assembled, the upper The connection work between the connecting pipe and the transparent pipe can be easily performed.

(5) The opening formed in the outer case is located at a position that corresponds to the viewing window of the liquid level display panel through the upper connecting tube and at a position for positioning the transparent tube. It can be used both for positioning the tube and for aligning the transparent tube and the sight glass, and has a configuration for holding the position of the liquid level display tube and a configuration for aligning the transparent tube and the sight glass. Each becomes easier.

(Embodiments) Several embodiments of the present invention will be described with reference to FIGS. 1 to 11. FIGS. 1 to 6 show the first embodiment of the present invention, and FIG. Embodiment 2, FIGS. 8 to 10 show a liquid container of the third embodiment, and FIG. 11 shows a liquid container of the fourth embodiment.

The liquid container of the first embodiment shown in FIGS. 1 to 6 has an upper opening 1 for liquid replenishment inside the outer case 4.
8 and a double-ended vacuum bottle inner container 5 having a lower opening 19 for dispensing liquid is housed therein, and a base member 3 which also serves as a shoulder member 6 and a bottom member is provided at the upper and lower parts of the outer case 4, respectively. At the same time, the plug body 2 is inserted into the plug insertion hole 8 formed approximately at the center of the shoulder member 6.
It is configured by installing.

The outer case 4 and the shoulder member 6 are coupled by force-fitting the upper end of the outer case 4 to the outer peripheral surface of the lower end of the shoulder member 6.

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 has a relatively small diameter and projects downward.

The lower opening 19 of the inner container 5 is connected to the base side 10a of a liquid pouring passage 10 for guiding the liquid in the inner container to the outside.

The tip spout 10b of the liquid pouring passage 10 penetrates a lower panel portion 24 of the liquid amount display panel 12, which will be described later, and opens downward toward the liquid receiving container housing recess 30.

Inside the liquid pouring passage 10, the liquid pouring passage 10
A valve member 13 for opening and closing is provided so as to be slidable inward and outward 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.

A liquid amount display tube 11 for displaying the amount of liquid in the inner container 5 to the outside is branched off from this liquid pouring passage 10.

This liquid level display tube 11 has connecting tubes 3 at the top and bottom of a vertically long transparent tube 31 that serves as a liquid level display section, respectively.
2 and 33 are attached.

The transparent tube 31 is installed vertically on the outside of the outer case 4.

The base end of the lower connecting pipe 33 (see FIG. 5) of the liquid volume indicator tube 11 is opened into the interior of the liquid pouring passage 10 on the upstream side of the valve 16 installation position of the valve member 13.

The upper connecting pipe 32 of the liquid level display tube 11 is installed so as to face the outside of the outer case through an opening 4a formed in the outer case 4 when the outer case 4 and the shoulder member 6 are forcefully fitted together. The upper connecting tube 32 and the transparent tube 31 are connected by a connecting gasket 37 outside the outer case 4. In this way, if the upper connecting pipe 32 and the transparent tube 31 are connected outside the outer case, even after the outer case 4 and the shoulder member 6 are combined, the upper connecting pipe 3
2 and the transparent tube 31 can be easily connected.

As shown in FIG. 2, the opening 4a of the outer case 4 is a hole with a size slightly larger than the outer diameter of the upper connecting pipe 32, and the upper connecting pipe 32 is inserted into the opening 4a. In this case, the upper connecting pipe 32 is held in position by the edge of the opening 4a. That is, the vertical and horizontal movement range of the upper connecting pipe 32 is restricted by the opening 4a.

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 via a vertical hole 36 formed in the shoulder member 6. The distal end portion of the upper connecting tube 32 is formed of an elastic tube such as a rubber tube in this first embodiment, and the distal end portion of the upper connecting tube 32 is connected to the vertical hole 36.
It is attached by being press-fitted from below. 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 installed in hole 8 (when closed)
The lower surface of the stepped portion 2a formed on the plug body 2 comes into contact with the stopper body 2 to cover it. Further, a small groove 34 is formed at the upper end of the upper connecting pipe 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). This small groove 34
has a small passage area that allows air to circulate, so that even if the liquid container falls over, the liquid in the liquid volume display tube 11 will not flow out through the small groove 34. That's what I do.

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 31 of the liquid volume display tube 11. The liquid volume display panel 12 is provided with the liquid pouring passage 10 at the bottom of a vertical panel portion 23 that covers the outside of the liquid volume display tube 11.
It is constructed by integrally forming a lower panel portion 24 that covers the lower side of the .

The opening 4a formed in the outer case 4 positions the upper connecting pipe 32 passed through the opening as described above, but when the entire liquid level display tube 11 is assembled, the transparent The tube 31 is positioned at a position corresponding to the viewing window 21 of the liquid level display panel 12.

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 to allow a portion of the vertical panel portion 23 to be recessed inward and to guide the valve operating member 14 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. Then, when the valve operating member 14 is pushed down, the intermediate lever 2 is moved by the push plate portion 14b.
8 is rotated, and further, the valve stem 15 of the valve member 13 is pressed inward (in the valve opening direction) against the spring 17 by the intermediate lever 28.

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 it into the entry section 26.

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

The plug 2 has a pair of left and right locking members 40, 4 provided on the plug 2, as shown in FIGS. 3 and 4.
By locking or unlatching 0 to the side wall surface 8a of the plug insertion hole 8, the plug can be locked in the state installed in the plug insertion hole 8 or the plug insertion hole 8 can be locked.
It is configured so that it can be unlocked from That is, the pair of locking members 40, 40 are
They are installed so as to be slidable toward or away from each other in the horizontal direction with respect to the stopper 2, and when the lock members 40, 40 are spaced apart from each other, the locking pieces 41, 41 at the ends thereof penetrates the side wall 2b of the plug body 2 and protrudes to the outside thereof to form a plug insertion hole 8.
When the locking members 40, 40 are engaged with the locking receivers 44, 44 formed on the side wall surface 8a of the plug, the stopper 2 acts to lock the stopper 2, and conversely, when the locking members 40, 40 are brought close to each other, the locking members 44, 44 are engaged with each other. Pieces 41, 41 are plug insertion hole side wall surface 8
The stopper body 2 can be removed from the stopper insertion hole 8 by separating from the locking receivers 44, 44 of a. Further, the two plug body locking members 40, 40 are urged 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 a direction (unlocking direction) toward each other by inserting fingers into finger insertion holes 42, 42 formed on the top surface of the plug 2 and pinching them, respectively.
(See Figure 4).

A stopper 45 is provided at the lower part of the vertical panel portion 23 of the liquid volume 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 is moved upward (the position shown in FIG. 1), the stopper 45 is attached to the intermediate lever 23.
On the contrary, when the stopper 45 moves downward, the protrusion 4 formed on the inner surface of the stopper 45
6 abuts against a part of the intermediate lever 28 (part 28a), and the intermediate lever 28 is moved in the liquid dispensing direction (the first
Rotation in the counterclockwise direction (in the figure) is restricted.

In FIGS. 1 to 6, reference numeral 20 indicates a medium screw member for tightening the inner container 5, 29 indicates a handle for suspending the liquid container, and 35 indicates the inner container 5 formed at the rim of the liquid supply port 7.
A concave groove for supplying air into the inner container, 37 a rotary table, and 39 a protective case for protecting the outer surface of the inner container 5.

In the liquid container of the first embodiment, the outer case 4 and the shoulder member 6 are coupled by force fitting, so that the assembly work of the two is facilitated. Furthermore, since the transparent tube 31 of the liquid volume display tube 11 is installed outside the outer case 4, the body diameter of the outer case 4 can be made smaller in comparison to the body diameter of the inner container 5, and the entire liquid container can be made more compact. . In addition, even if the transparent tube 31 of the liquid level display tube is installed outside the outer case 4 in this way, there are connecting tubes 3 at the upper and lower parts of the transparent tube 31, respectively.
2 and 33 are connected, the entire liquid quantity display tube 11 can be easily assembled. Further, since the upper connecting pipe 32 of the liquid quantity display tube 11 is installed through the opening 4a of the outer case 4, the upper side of the liquid quantity display tube 11 is held in position by the edge of the opening 4a. Therefore, the existing outer case 4 can be used to hold the liquid volume display tube 11 in position, which simplifies the structure (no special position holding member is required).
In addition, when the liquid level display tube 11 is assembled through the opening 4a, the transparent tube 31 is positioned so as to correspond to the viewing part 21, and the opening 4a is connected to the transparent tube 31 and the viewing part 21. Can also be used for positioning with. Then, when the stopper 45 is in the non-operating state, the recessed portion 26 of the liquid level display panel 12
When the valve operating member 14 is pushed down by inserting a finger into the valve operating member 14, the intermediate lever 28 is rotated by the valve operating member 14, and the intermediate lever 28 is further moved to rotate the valve 1 of the valve member 13.
By opening the valve 6, the liquid in the inner container 5 can be poured out from the tip spout 10b through the liquid pouring passage 10. In this case, since the operating part 14a of the valve operating member 14 does not protrude from the outer surface of the liquid level display panel 12, there is almost no possibility that a body or an object will accidentally come into contact with the operating part 14a of the valve operating member 14, and it will not accidentally come into contact with the operating part 14a of the valve operating member 14. Spiking 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 flows 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 is covered by the stopper 2. Therefore, liquid will not flow out from the upper end opening 32a.

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.

In the liquid container of the second embodiment shown in FIG. Formed on the side. That is, the stopper 2 has an upper end opening 32 at a position corresponding to directly above the upper end opening 32a of the liquid level display tube 11 that faces the upper surface of the dish-shaped portion 9 of the shoulder member 6 when the stopper 2 is closed.
A vertical air passage 48 is formed which communicates with a. The upper end opening 32a of the liquid level indicator tube 11 is surrounded by an elastic packing material 49, and the lower end edge of the air passage 48 formed in the plug body 2 comes into contact with the elastic packing material 49 when the plug body is closed. The inside of the liquid volume display tube 11 and the air passage 48 are airtightly communicated with each other. In the air passage 48, there is a ball valve 5 that closes the air passage 48 to shut off water when the liquid container falls over.
0 is stored. An air passage between the inside of the liquid volume indicator tube 11 and the outside air is established through a minute annular passage 48a formed around the ball valve 50. still,
The other configuration of the liquid container of this second embodiment is the same as that of the first embodiment.
Since it has the same structure as the liquid container of the embodiment, the explanation thereof will be omitted.

In the liquid container of the third embodiment shown in FIGS. 8 to 10, the stopper 2 is a screw stopper that can be screwed into and removed from the stopper insertion hole 8. hole 8
The liquid level display tube 11 appears on the bottom surface of the stopper 2 when it is tightened inside.
He is trying to cover the upper end opening 32a.
Further, in the liquid container of the third embodiment, an air passage for supplying or discharging air into the liquid quantity display tube 11 is formed on the lower surface of the stopper body 2. That is, on the lower surface of the stopper 2, there is a small circular annular shape concentric with the center of the threaded portion 51 on the outer periphery of the stopper 2, and at a position corresponding to the upper end opening 32a of the liquid level display tube 11 when the stopper 2 is screwed. The concave groove 52 and the base end are the small concave groove 52 and its communication groove 5.
It communicates with the outside air through 3. In addition, on the lower surface of the plug body 2, there is an annular packing 4 that contacts the dish-shaped portion 9 of the plug insertion hole 8 closer to the outer periphery than the circular small groove 52.
7 is provided, and the distal end side of the communication groove 53 crosses the upper side of the annular packing 47 in a tunnel shape and opens to the outside thereof. The rest of the structure of the liquid container of this third embodiment is substantially the same as that of the liquid container of the first embodiment, so a description thereof will be omitted.

In the liquid container of the fourth embodiment shown in FIG. 11, a screw stopper is adopted as the stopper 2 at the same time as the liquid container of the third embodiment. Air passages for this are formed in the dish 9 of the shoulder member 6. In the liquid container of this fourth embodiment, the upper end opening 32a of the liquid volume display tube 11 is
It opens into a recess 55 formed on the upper surface of the dish-shaped portion 9 in a slightly lowered state than the upper surface thereof, and when the plug 2 is closed, the lower surface of the plug 2 directly closes the upper end opening 32a of the liquid level display tube. The outer edge 55 of the recess 55
I am trying to make contact with a. Further, a small groove 56 is formed in the outer edge 55a of the recess 55 to communicate the inside and outside of the recess 55, and the inside of the liquid level display tube 11 and the outside air are communicated through the small groove 56. ing. The other structure of the liquid container of this fourth embodiment is substantially the same as that of the liquid container of the first embodiment, so a description thereof will be omitted.

[Brief explanation of the drawing]

1 is a vertical sectional view of a liquid container according to a first 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 the liquid volume display tube used in the liquid container shown in Fig. 1, Fig. 6 is a partially enlarged sectional view of the liquid container shown in Fig. 1, Fig. 7 8 is a top vertical cross-sectional view of a liquid container according to a third embodiment of the present invention, and FIG. 9 is a top vertical cross-sectional view of a liquid container according to a third embodiment of the present invention. 10 is a partially enlarged sectional view of the liquid container in FIG. 8; 11th is a partially vertical sectional view of the liquid container according to the fourth embodiment of the present invention; 12th is a bottom view of the stopper used; The figure is a structural explanatory diagram of a known thermos flask. 4...Outer case, 4a...Opening, 5...Inner container, 6...Shoulder member, 11...Liquid level display tube, 12...
...Liquid level display panel, 21...Peep window, 31...Transparent tube, 32...Upper connecting tube, 33...Lower connecting tube, 37...Connecting gasket.

Claims (1)

[Scope of Claims] 1. A liquid product comprising: a shoulder member 6 attached to the upper part of an outer case 4; an inner container 5 housed within the outer case 4; and a liquid volume indicator tube 11 for the inner container 5. In the container, the outer case 4 and the shoulder member 6 are connected by force fitting, and the liquid volume display tube 11 has connection pipes 32 and 33 at the upper and lower parts of a transparent tube 31 that serves as a liquid volume display section, respectively.
The transparent tube 31 is installed vertically on the outside of the outer case 4, and the liquid level display panel 12 with the viewing window 21 is attached to the outside of the transparent tube 31 on the outer surface of the outer case 4. The upper connecting pipe 32 is exposed to the outside of the outer case 4 through the opening 4a formed in the outer case 4 in a state in which the outer case 4 and the shoulder member 6 are force-fitted, and the transparent pipe 31 and the upper part are covered with each other. The connecting pipe 32 is connected to the transparent pipe at a position corresponding to the viewing window 21 of the liquid level display panel 12 through the upper connecting pipe 32. 31 is formed at a position for positioning.