JPH0114286Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a thermos flask, etc., which is equipped with an insulated container having a vacuum double structure with a vacuum between the outer shell part and the inner shell part, and is configured to keep the liquid inside the container warm. The present invention relates to a liquid heat insulating container.

Conventional technology In an insulated container such as a vacuum double container, the heat inside the container tends to escape upward, so a structure in which the liquid supply port is opened directly upward or the liquid injection port extends upward prevents heat from escaping. difficult to prevent. Therefore, as known from Japanese Utility Model Application Publication No. 56-87833 and Japanese Utility Model Application Publication No. 55-130634, an opening for liquid supply and injection, which is oriented slightly horizontally, is formed at the upper side of the container. There is.

Problems that the invention aims to solve However, although the opening is located on the side and facing sideways, it is easier to pour the liquid and prevent the heat inside the container from escaping upwards, but this makes it more inconvenient to supply the liquid. There is a drawback.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a liquid heat-insulating container that eliminates the drawbacks of the conventional examples, has an excellent heat-insulating effect, and is convenient for pouring and supplying liquid.

Means for Solving the Problems In order to achieve the above objectives, the present invention has the following objectives:
In an insulated container that has a structure where a vacuum is created between the outer shell and the inner shell, there is a liquid injection port that opens horizontally on the upper side, and an opening on the outer shell side and the inner shell side of this liquid injection port. A tubular member whose proximal end portions are fitted and fixed to each side and forms a lateral pouring path that faces outside the vessel sideways from the injection port; It is equipped with a sideways discharge pipe that forms a liquid injection passage extending outside the device, and an upwardly facing liquid supply port is integrally formed in the middle of this discharge pipe, and the liquid supply port is connected to and detached from the liquid supply port to open and close it. The present invention is characterized in that a stopper is provided that opens and closes the passage of the discharge pipe when it is attached to the discharge pipe.

The present invention will be explained in detail below based on embodiments shown in the drawings. The first embodiment shown in FIG.
A vacuum double container (insulated container) 3 with a vacuum formed between the inner shell portion 2 and the inner shell portion 2 is made of stainless steel, and the outer shell portion 1 serves as the entire exterior body. The inner shell part 2 of the vacuum double container 3 is integrated by overlapping a capped cylindrical body 5 and a bottomed bowl-shaped body 6 at their mouth rim flange parts 5a and 6a, and welding these parts. . In this embodiment, the liquid injection port 4 is provided in the inner shell 2 at the base end 8 of the short cylindrical tube 8 in the bulge wall 7a of the bulge hole 7 provided near the upper end of the side of the cylindrical body 5.
a, and by welding the fitting portion, the cylindrical short tube 8 is integrally attached to the crested cylinder 5, and is provided on the upper side surface of the vacuum double container 3. The outer shell portion 1 is formed by overlapping the cylindrical body 9 and the cylindrical body 10 at their mouth flange portions 9a and 10a, and welding these parts together to integrate the cylindrical body 9 and the cylindrical body 10. The proximal end 12a of the nozzle-shaped short tube 12 is fitted into the bulge wall 11a of the bulge hole 11 provided near the upper end of the side of the tube, and the fitted portion is welded to form the nozzle-shaped short tube 12 with a crest. It is configured by being integrally attached to the cylindrical body 9. The nozzle-shaped short tube 12
The distal end 12b is the distal end 8b of the short cylindrical tube 8.
The diameter is reduced so as to polymerize, and both tip portions 12
b and 8b are integrated by welding their overlapping parts. Numerals 13 and 13 are stainless steel support pieces for fixing the inner shell part 2 at a predetermined position in the outer shell part 1, and the upper end part 13a is welded to the inner shell part 2, while the lower end part 13b is welded to the inner shell part 2. Expands outward, outer shell part 1
It is pressed against the inner surface of the In addition, 37a is the outer shell part 1
This is an elastic decorative ring that covers the outside of the respective lip flange portions 9a and 10a located at the welded portion between the capped cylindrical body 9 and the bottomed cylindrical body 10.

Next, one example of the manufacturing process of the vacuum double container 3 will be explained step by step.

The inner shell side capped cylindrical body 5 is welded to the inner shell side bottomed bowl-shaped body 6 to which the support pieces 13, 13 are attached by welding.

A short cylindrical tube 8 is welded to the crested cylindrical body 5 to complete the inner shell part 2.

A nozzle-shaped short tube 12 is welded to the cylindrical short tube 8.

The inner shell part 2 to which the nozzle-shaped short tube 12 is welded is inserted into the outer shell-side bottomed cylindrical body 10, and is fixed to the outer shell-side bottomed cylindrical body 10 by the support pieces 13, 13.

The outer shell-side capped cylinder 9 is fitted into the inner shell-side capped cylinder 5, and at the same time, the nozzle-like short pipe 12 and the bulge wall 11a of the outer shell-side capped cylinder 9 are provided with a gap for air bleed. Overlap them in this way.

The outer shell side capped cylindrical body 9 and the outer shell side bottomed cylindrical body 1
Weld with 0.

In order to bring the space between the outer shell part 1 and the inner shell part 2 into a vacuum state, air is extracted from the air bleed gap described above.

The bulge wall 11a of the outer shell-side capped cylindrical body 9 is narrowed and brought into close contact with the nozzle-shaped short pipe 12, and then they are welded to integrate the outer shell part 1 and the inner shell part 2.

The elastic decorative ring 37a is fitted in a predetermined position.

The lower end portion 14 of the outer shell portion 1 is formed to have a slightly smaller outer diameter than the upper portion thereof, and has a protrusion 15 for force fitting. A synthetic resin bottom case 16 is fitted into the lower end 14, and a force-fitting groove 17 provided in the bottom case 16 is inserted into the bottom case 16.
The bottom case 16 is force-fitted to the outer shell portion 1 by fitting the forcible-fitting protrusion 15 to the forcible-fitting protrusion 15 . A substantially inverted L-shaped handle 18 is integrally formed on the bottom case 16. Vertical portion 18 of this handle 18
The handle 18 extends upward substantially parallel to the rear of the outer shell 1, and the upper part 19 of the handle 18 extends forward above the vacuum double container 3, and its tip 20 is bent diagonally downward. It is convenient to use the handle 18 by gripping the vertical portion 18a when pouring liquid, and gripping the upper portion 19 when lifting the liquid heat-insulating container.

The overlapping portion of the cylindrical short tube 8 and the nozzle-like short tube 12 is located above the front side of the vacuum double container 3, and there is a sideways synthetic resin 21 ( (discharge pipe) is stuck. This tip member 21 has a liquid injection passage 22 inside thereof, and also has a liquid supply port 23 formed in the shape of an upward taper on its upper surface for convenient liquid supply. The liquid supply port 23 and the liquid injection passage 22 communicate with each other through a screw hole 24, and a screw plug 25 is removably screwed into the screw hole 24 from above. The screw stopper 25 is configured to open and close the liquid supply port 23 and the liquid injection port 4 by its rotation, and to adjust the flow rate during liquid injection. 26
is a gasket which is fitted to the lower end of the screw stopper 25 and also serves as a cushion.

The second embodiment shown in FIG. 2 is characterized in that the center lines of the outer shell part 1 and the inner shell part 2 constituting the stainless steel vacuum double container 3 are both in the horizontal direction (in the first embodiment, The center line is in the vertical direction).

In this embodiment, the inner shell portion 2 of the vacuum double container 3
have been completed in the following order. That is, the base 29a of the cylindrical short tube 29 is inserted into the circular hole 31 drilled near the upper end of the disc-shaped lid 30, and this portion is welded to attach the cylindrical short tube 29 to the lid 30. After providing the liquid inlet 4, the inner shell 2 can be completed by welding the lid 30 to the mouth flange 32a of the bottomed bowl-shaped body 32.

On the other hand, the outer shell portion 1 is composed of a bottomed cylindrical body 33 and a crested cylindrical body 34, and the crested cylindrical body 34 is integrally formed with a nozzle-shaped tube portion 35.

The manufacturing process of the vacuum double container 3 of this example is as follows.

The tip portions 36b of the support pieces 36, 36 are attached to the bottomed bowl-shaped body 32 of the inner shell portion 2 completed in advance as described above.
Weld and attach 36b.

This inner shell part 2 is inserted into the outer shell side bottomed cylindrical body 33, and the base end part 36a of the support pieces 36, 36,
36a is press-fitted onto the inner surface of the bottomed cylindrical body 33 to fix the inner shell portion 2.

The outer shell side capped cylindrical body 34 is placed on top, and the mouth flange 34a thereof and the mouth edge flange 33a of the outer shell side bottomed cylindrical body 33 are welded to integrate them.
Incidentally, prior to this welding, the nozzle-shaped tube portion 35
is fitted into the short cylindrical tube 29.

In order to make the space between the outer shell part 1 and the inner shell part 2 into a vacuum state, air is extracted from the gap between the overlapping part of the tip part 35b of the nozzle-shaped tube part 35 and the tip part 29b of the cylindrical short tube 29.

The overlapping portion is welded to integrate the outer shell portion 1 and the inner shell portion 2.

As mentioned above, this embodiment has the advantage that the number of materials constituting the vacuum double container 3 can be reduced and the number of welding points can be reduced compared to the first embodiment. .

The rest of the configuration of this embodiment is the same as that of the first embodiment, so a description thereof will be omitted (common reference numerals are given to parts common to both embodiments in the drawings). Furthermore, 37b
38 is an elastic decorative ring that covers the weld line of the outer shell part 1;
3 is a groove for accommodating this elastic decorative ring 37b;
Reference numeral 9 represents leg-like projections provided on the bottom surface of the bottom case 16.

In both the first and second embodiments, the liquid supply port 2 can be opened by removing the screw plug 25.
3. Liquid such as boiling water can be supplied into the vacuum double container 3 from the cylindrical short pipes 8 and 29 through the screw hole 24 and the liquid injection passage 22 (the liquid supply port 23 is formed in the shape of a taper). (This makes it possible to perform fluid supply operations smoothly.) Further, by moving the screw stopper 25 upward to open the liquid injection passage 22, the liquid in the vacuum double container 3 can be poured out from the short cylindrical tubes 8, 29 through the liquid injection passage 22. In this way, the cylindrical short tubes 8 and 29 serve both as a liquid supply and a liquid injection.

As described above, the present invention is provided with a liquid injection port 4 on the upper side of the vacuum double container 3 and a sideways discharge pipe 21 following the liquid injection port 4, and an upward liquid supply port in the middle of this discharge pipe 21. 23 is provided, and this liquid supply port 23
The present invention is characterized by being provided with a stopper 25 that opens and closes the liquid injection passage 22 to the liquid injection port 4 when attached to and removed from the liquid supply port 23, but other than that shown in the above embodiment. , can be configured in various ways.
For example, the vacuum double container 3 can be constructed of a vacuum double glass bottle, and this can be arranged inside the outer case body. Alternatively, the handle may be made of stainless steel and directly attached to the rear surface of the outer shell 1 by welding.

Since the present invention has the above configuration, the following effects can be achieved.

A liquid injection port is provided on the upper side of the liquid heat-insulating container and continues to the tubular member and discharge pipe that extend toward the outside of the container, reducing the angle at which the container is tilted when pouring liquid, making the liquid injection operation easy. At the same time, the heat retention effect can be enhanced by preventing heat from escaping upward.

The liquid supply port is located in the middle of the discharge pipe facing the outside of the liquid container, so it does not become an upward escape point for heat and does not impair the heat retention effect. Since it is installed upward in the middle of the pipe, it is easy to supply liquid from above, making it convenient to use.

Even though the liquid supply port and the liquid injection port face different directions, upward and sideward, only one plug is needed to open and close them, and it is installed so that it can be attached and removed from above. Convenient to handle.

By fitting and fixing the spout of the heat-insulating container and the discharge pipe via a tubular member, it is possible to form both the spout passage and the connection of the discharge pipe using only the tubular member, and it is also easy to assemble during the manufacturing process. It's easy.

In other words, since the base of the tubular member is fitted and fixed into the openings of both the inner shell and outer shell of the heat insulating container, it is possible to form a firmly fixed lateral pouring passage, and the tubular member has a liquid supply port. By fitting and fixing the discharge pipe to the tubular member, the tubular member also serves as a mounting member and can be securely mounted without a special mounting member. Therefore, the number of parts is small, assembly is easy, and the device is robust.

[Brief explanation of drawings]

FIG. 1 is a longitudinal side view of a first embodiment of the present invention, and FIG. 2 is a longitudinal side view of a second embodiment of the present invention. 1... Outer shell part, 2... Inner shell part, 3... Vacuum double container (insulated container), 4... Liquid injection port, 7... Bulge hole (opening on inner shell side), 8, 29 ... Circular short pipe (tubular member), 12 ... Nozzle-like short pipe (opening on the outer shell side), 21 ... Tip member (discharge pipe), 22 ...
...liquid injection passage, 23...liquid supply port, 25...screw plug (stopper), 31...circular hole (opening on inner shell side),
35b... Tip (opening on the outer shell side).

Claims (1)

[Scope of utility model registration request] In an insulated container that has a structure where a vacuum is created between the outer shell and the inner shell, there is a liquid injection port that opens horizontally on the upper side of the container, and an opening on the outer shell side and the inner shell side of this liquid injection port. A tubular member whose proximal end portions are fitted and fixed to each side and forms a lateral pouring path that faces outside the vessel sideways from the injection port; It is equipped with a sideways discharge pipe that forms a liquid injection passage extending outside the vessel, and an upwardly directed liquid supply port is integrally formed in the middle of this discharge pipe,
A liquid heat-insulating container characterized by being provided with a stopper that is attached to and removed from the liquid supply port to open and close it, and that opens and closes the passage of the discharge pipe when attached to the liquid supply port.