JPS6112903Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a thermos flask, and particularly to the structure of the exterior body of the thermos flask.

Metals and ceramics are generally used for the exterior of thermos flasks, but they cannot be used for practical purposes unless they are treated with anti-rust treatment or decorated with patterns or pictures by printing or other means. The problem was that the processing was complicated.

The technical objective of this invention is to make it possible to put into practical use the exterior body without applying anti-rust or decorative treatments, thereby simplifying the manufacturing process.

In order to achieve the above-mentioned objective, the present invention provides that when a medium bottle consisting of a vacuum double bottle is made of glass, the medium bottle itself has an extremely elegant appearance due to the silver mirror plating formed on the walls of the inner and outer bottles that form the vacuum space. We focused on the appearance of the thermos and used it as the appearance of the thermos flask. That is, the present invention provides a thermos flask in which an inner bottle is housed in an exterior body, and the inner bottle is a vacuum double bottle made of glass in which silver mirror plating is formed on the walls of the inner and outer bottles forming a vacuum space.
The gist of the thermos flask is that at least the body of the members constituting the exterior body is made of a transparent material so that the inner bottle can be viewed from the outside.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In the drawings, 1 is a body made of transparent glass and is a bottomed exterior body, 22 is a medium bottle made of a vacuum double bottle, and by fitting a protrusion 21 into a hole 2 provided at the center of the bottom of the body 1. The bottom part is supported by a fixed medium bottle support 20. Two holes 3 are provided in the side of the body 1, and a handle 4 is fixed to the holes 3 with screws 5 and nuts 6.

Even when the body 1 of the exterior body is made of glass with poor formability, a dimensional error is absorbed and the shoulder body 24 of the exterior body can be easily and reliably attached. is provided with an annular groove 7, and a band-shaped synthetic resin screw member 9 is attached to the annular groove 7 in an annular manner.
By screwing the shoulder mounting member 28 onto the shoulder body 2
4 is fixed. This shoulder body 24 is connected to the shoulder mounting member 2
8 and the body 1 constitute the main body of the exterior body.

As shown in FIG. 5, the body 1 has one positioning hole 8 drilled in the annular groove 7, and the screw member 9 has a male thread 10 on the side that becomes the outer peripheral surface when assembled in an annular shape. At the same time, a tongue 11 and a recess 12 are formed at both ends, respectively, and the tongue 11 is provided with an insertion hole 13, and the recess 12 is provided with a protrusion 14. Further, an L-shaped engagement piece 15 whose tip is bent inward is provided at the upper end of the screw member 9.
Three are formed. This screw member 9 is attached to the body 1
When installing the tongue piece 11 on one end side, align the insertion hole 13 of the tongue piece 11 with the positioning hole 8 and wind it along the annular groove 7, and fit the protrusion 14 on the other end side into the positioning hole 8 through the insertion hole 13. Just make sure it matches. As a result, both ends of the screw member 9 are joined,
It is fixed in a fixed position relative to the annular groove 7 and is installed in an annular shape. In addition, since the tongue piece 11 and the recess 12 that engage with each other are provided at both ends of the screw member 9, when a vertical force is applied to one end of the screw member 9, the force is concentrated on the protrusion 14. This prevents the protrusions 14 from breaking.

The shoulder body 2 is attached to the mouth of the medium bottle 22 via the mouth rubber 23.
4 is placed thereon, and three grooves 25 provided at the outer peripheral end of the shoulder body 24 engage with the engagement piece 15 of the screw member 9 so as to be able to slide vertically. A bottle holder 26 for receiving the mouth of the medium bottle 22 is formed on the lower inner surface of the shoulder body 24, and a sprue 27 is formed on the upper end. Then, the cut groove 25 and the engagement piece 15
By engaging the screw member 9 and the shoulder body 24
On the other hand, since the screw member 9 is positioned with respect to the body 1 by fitting the protrusion 14 and the positioning hole 8, the sprue 27 is placed at a 180° symmetrical position with respect to the handle 4. can be made to correspond accurately.

Reference numeral 28 denotes a shoulder mounting member, which has a female thread 29 on its inner surface that engages with the male thread 10 of the screw member 9;
An inner collar 30 is integrally provided at the upper end. When this shoulder attachment member 28 is screwed onto the screw member 9,
The inner flange 30 presses against the upper surface of the shoulder body 24 to press the bottle holder 26 of the shoulder body 24 to the mouth of the medium bottle 22.

Reference numeral 31 denotes a shoulder cover made of a thin metal plate, which is fitted to cover the shoulder attachment member 28 and the shoulder body 24, and is integrated with the shoulder body 24 and the shoulder attachment member 28 by fixing screws 32. The lower end of this shoulder cover 31 extends downward from the annular groove 7 of the body 1,
The large diameter portion of the body 1 is also covered, and due to variations in the amount of threading between the shoulder mounting member 28 and the screw member 9, a gap X ( 3), the shoulder cover 31 covers the gap X and is not exposed to the outside.

Reference numeral 33 denotes a stopper which is detachably screwed onto the shoulder body 24, houses a heat insulating material 34 therein, and has a metal stopper cover 35 attached to the upper surface and outer periphery.

In the thermos bottle having the above configuration, the body 1 and the middle bottle 22
Both are made of glass, and dimensional errors in the vertical direction are unavoidable.
It is absorbed by the amount of threading into the screw member 9, and the shoulder body 2
The bottle holder 26 of No. 4 and the mouth of the medium bottle 22 are connected to the mouth rubber 23.
There is no need to worry about water leakage as it always adheres with a constant pressure force. By tightening the shoulder attachment member 28, the shoulder body 24 comes into pressure contact with the medium bottle 22, and the reaction force causes the upper end surface of the screw member 9 to come into pressure contact with the flange portion 1a of the body 1 forming the annular groove 7. Therefore, even if there is variation in the fitting precision between the screw member 9 and the annular groove 7, the shoulder body 24, the shoulder attachment member 28, and the screw member 9
will not shake against body 1.

FIG. 6 shows another embodiment of the present invention, in which tongue pieces 11' and recesses 12' at both ends of the screw member 9 are formed in a wedge shape. Even if a force is applied, the force is not concentrated only on the protrusion 14'.

In the embodiment described above, the body 1 made of a transparent material has a bottomed shape, but the body 1 may have a cylindrical shape with an open bottom, and the bottom may be a separate member to constitute the exterior body. However, when the body is made of bottomed glass, unlike a cylindrical body, the conventionally known shoulder attachment structure in which the shoulder attachment member is screwed onto the shoulder body from the inside of the body cannot be applied. The structure of the example is effective.

As is clear from the above description, according to the present invention, the body of the exterior body is made of a transparent material, such as glass, so that the inner bottle can be observed from the outside, and the elegant appearance of the inner bottle itself can be enhanced with a decorative effect. Since the exterior body is used as a metal or ceramic body, there is no need for anti-corrosion treatment or decorative treatment unlike when the exterior body is made of metal or ceramics, and the body of the exterior body can be formed by simply molding, simplifying the manufacturing process. can do.

[Brief explanation of the drawing]

Figure 1 is a front view of the thermos flask according to the present invention, Figure 2
The figure is a plan view, Figure 3 is a cross-sectional view taken along the - line in Figure 2,
FIG. 4 is an exploded sectional view of the main parts, FIG. 5 is an exploded perspective view of the body and the screw member, and FIG. 6 is a perspective view of both ends of another embodiment of the screw member. DESCRIPTION OF SYMBOLS 1... Body, 7... Annular groove, 8... Positioning hole, 9... Screw member, 10... Male thread, 14...
Projection, 15... Engaging piece, 20... Medium bottle support, 2
2... Medium bottle, 24... Shoulder body, 25... Cut groove, 26
... Bottle holder, 28 ... Shoulder mounting member, 29 ... Female thread, 33 ... Stopper.

Claims (1)

[Scope of utility model registration request] A thermos flask having an inner bottle housed in an outer case, wherein the inner bottle is a vacuum double bottle made of glass with silver mirror plating formed on the walls of the inner and outer bottles forming a vacuum space, and the member constituting the outer case. A thermos flask, characterized in that at least the body of the flask is made of a transparent material so that the inner flask can be viewed from the outside.