JPH0232201Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field This invention relates to a metal vacuum double container in which the space between the inner and outer metal containers is evacuated and sealed through a vacuum tip tube protruding from a part of the outer container.

Prior Art Conventionally, as shown in FIG. 1, for example, a container of this type has a tip tube B protruding downward from the lower surface of the bottom of a metal outer container A, a bottom plate D decorating the lower end of the container body C, and an outer container. A space E with a height _H1 sufficient to accommodate the tip tube B is required between the tip tube A and the tip tube A.
This space E has no other use and increases the height of the container C regardless of the internal capacity, and also increases the bottom height H ₂ of the inner container F that accommodates the liquid content, reducing stability.

Purpose The purpose of this invention is to improve the protruding location or protruding state of the tip tube, and to provide a metal vacuum double container which can eliminate the drawbacks of the prior art.

Structure/Function This invention is based on the above-mentioned metal vacuum double container, in which the tip tube is placed in the space between the shoulder of the outer container and the shoulder member placed over it, facing in the upright direction of the container. The outer container is characterized in that it has a bottom portion on which it is placed in an upright state.

With this structure, the container can be stably placed in an upright position by the bottom of the container, and the tip tube is installed on the shoulder of the container in such a state, facing toward the upright direction of the container. This makes it easier to perform vacuum work through the tip tube and subsequent work to close the tip tube.

Such a tip tube is covered by a shoulder member that is placed over the shoulder of the outer container, so that even if it is placed on the upper part of the container, the appearance will not be impaired, and it will be protected together with the shoulder of the outer container and will not be damaged by external force. can avoid.

Embodiment To explain the first embodiment shown in FIG. 2, a space 3 between an inner container 1 and an outer container 2 made of stainless steel is formed by a vacuum tip tube 4 protruding from a part of the outer container 2. The container body 5 is evacuated and sealed through the container body 5. This container body 5 has a synthetic resin bottom plate 6 attached to its lower end and a synthetic resin shoulder member 7 attached to its upper end to form a container body 8, and the container body 8 is a handy type pot having a handle 9 on its side. ing.

The inner container 1 and the outer container 2 are formed by dividing them at appropriate points depending on their shape and size.
The vacuum space 3 is airtightly surrounded by an airtight joint 10 by welding, brazing, or the like. The bottom plate 6 is fixed with screws 13 to bifurcated metal fittings 12 fixed by spot welding or the like at several locations on the outer periphery of the lower surface of the outer container 2, with the upper end of the upwardly directed peripheral wall 6a fitted to the stepped portion 11 on the outer periphery of the lower surface of the outer container 2. It is worn. The shoulder member 7 is formed in the shape of a dish having a communication port 7a at the bottom that communicates with the narrow opening 1a of the inner container 1, and when its downward peripheral wall 7b is fitted into the stepped portion 14 on the upper outer periphery of the outer container 2. It is fixed by screws 13 to a bifurcated metal fitting 12 which is fixed by spot welding or the like to several locations on the outer periphery of the shoulder surface 5a of the container body 5.

The shoulder member 7 is further fitted with a cover plate 27 that covers its upper part by force fitting 15, and a screw stopper 17 inserted from above through an opening 16 of the cover plate 27.
A threaded portion 7c is formed on the lower inner periphery of the lid plate 27, and has a liquid injection path 18 extending from a part of the inner periphery to one side in a gutter shape and forming a tunnel shape between it and the lid plate 14. .
A flap 19 whose upper end is pivoted about a horizontal axis (not shown) is provided at the distal end liquid injection port 18a of the liquid injection path 18. The screw stopper 17 is connected to the screw portion 7 of the shoulder member 7.
When it is rotated within an appropriate range in the screwed state with C, it is moved up and down according to the direction of rotation, and the O-ring 20 on the outer periphery of the lower end of the plug part 17a, which is loosely fitted in the narrow mouth part 1a of the inner container, is moved up and down according to the direction of rotation. is in contact with and away from the lower valve seat 1b of the narrow mouth portion 1a,
Open and close the inner container 1.

The handle 9 is integrally molded so that its upper end is continuous with the shoulder member 7, and its lower end 9a is fixed to the bottom plate 6 with a screw 21 with a recess 9b fitted into a positioning protrusion 6b on one side thereof. has been done. 22
is the mouth edge of the communication port 7a of the shoulder member 7 and the narrow mouth portion 1 of the inner container.
A Seal packing between the mouth rim.

A fairly large annular dead space 23 is formed around the inner container narrow opening 1a between the inner container and the outer container 2, which has a substantially straight outer peripheral surface and also serves as an outer case. By utilizing this dead space portion 23, the shoulder surface 5a of the container body 5 covered with the shoulder member 7 is
By partially recessing 24 downward, that is, into the dead space portion 23, a recess 25 for protruding the tip tube 4 is formed. The tip tube 4 projects within this recess 25, in particular at the bottom of the recess 25, relative to the outer container 2. The tip tube 4 is connected to the outer container 2 by welding in an airtight joint 26, and is connected to a vacuum device (not shown) while the shoulder member 7 is not yet attached to the container body 5, and the inner and outer containers 1, 2 are connected to each other. The air in the space 3 between them is removed by suction to create a vacuum. After this evacuation, the intermediate portion is cut by cold pressure welding and simultaneously closed 4a. These operations are performed with the shoulder member 7 not attached, so
The tip tube 4 can be extended as shown by the imaginary line in FIG. 2 to a length necessary and sufficient for these operations.

Due to the above structure, both the height H ₁ of the space below the bottom of the outer container 2 and the height H ₂ of the bottom of the inner container are reduced by half compared to the conventional case. In particular, the container main body 5 is stably placed in an upright state by the mounting bottom 100 provided on the outer container 2, and the tip tube 4 is positioned in an upright direction on the shoulder of the container main body 5 in this state. Therefore, the operation of closing the vacuum tip tube through the tip tube 4 can be easily performed.

In the second embodiment shown in FIG. 3, a shoulder member 7 mounted on a container body 5 is formed between an inner periphery having a threaded portion 7c and an outer periphery that is made to approximately match the outer diameter of the outer container 2. A recess 42 for protruding the tip pipe 4 is formed by using the dead space 41.
The recess 42 is formed between the outer container 2 by recessing 43 upward the back surface 7e of the shoulder member 7 that covers the shoulder surface 5a of the container main body 5, and is formed between the container main body shoulder surface 5a and the bottom of the recess 42. The outer container 2 has a chip tube 4 in a part.
is installed protrudingly.

If the dead space portion 41 formed by the shoulder member 7 alone is insufficient for the protrusion of the tip tube 4,
The shoulder surface 5a is also appropriately recessed 44 as shown in the imaginary line,
The dead space portion 23 on the side of the container body 5 may be effectively utilized.

The lower end of the handle 9 integrally formed on the shoulder member 7 is
The engagement piece 52 screwed 51 to the surface that contacts the outer circumferential surface of the outer container 2 is engaged from above with a locking fitting 54 that is fixed by welding or the like in a recess 53 on a part of the outer surface of the outer container 2. and is fixedly attached to the outer container 2.

In the third embodiment shown in FIG. 4, a recess 61 is formed in the shoulder surface 5a of the container main body 5 so as to form an annular step opening upwardly and laterally to the dead space portion 23, and a shoulder member 7 is formed to cover the recess 61. A recess 62 is formed between the container body 5 and the tip tube 4 in the recess 61 of the container body 5.
is installed protrudingly. The recess 61 may not be annular but may be formed only in a portion. In this case, the hanging wall 7d of the shoulder member 7 that covers the recess 61 from the side may also be partially formed.

Effects According to this invention, the tip tube is provided in the space between the shoulder of the outer container and the shoulder member placed over it, facing in the upright direction of the container, and the outer container is in the upright state. Since the container has a mounting bottom part, the container can be stably placed in an upright state by the mounting bottom part, and a tip tube is placed on the shoulder of the container in such a state to keep the container upright. Since it is oriented in the same direction, it becomes easier to perform vacuum work through the tip tube and subsequent operation to close the tip tube.

Such a tip tube is covered by a shoulder member that is placed over the shoulder of the outer container, so that even if it is placed on the upper part of the container, the appearance will not be impaired, and it will be protected together with the shoulder of the outer container and will not be damaged by external force. can avoid.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of main parts showing a conventional example, Fig. 2 is a longitudinal sectional view showing a first embodiment of this invention, Fig. 3,
FIG. 4 is a sectional view of the main parts showing the second and third embodiments. {1...Inner container, 2...Outer container, 3...Vacuum space,}5...Container body, 4...Tip tube, 7...
Shoulder member, 100... mounting bottom.

Claims (1)

[Scope of Claim for Utility Model Registration] A metal vacuum double container in which the space between the inner and outer metal containers is evacuated and sealed through a vacuum tip tube protruding from a part of the outer container, and the tip tube is: The outer container is provided in a space between the shoulder of the outer container and the shoulder member placed over it, facing in the upright direction of the container, and the outer container has a bottom on which it is placed in the upright state. Metal vacuum double container.