JPS645566Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a thermos bottle that is heated.

[Conventional technology]

Conventionally, a thermos bottle for heating has a vacuum double-ended bottle made of glass with openings at the top and bottom ends, a shoulder member is connected to the upper end of the exterior case surrounding the double-ended bottle, a bottom member is connected to the lower end, and the bottom A small container communicating with the double-ended bottle is provided outside the lower end opening of the double-ended bottle covered with material, and a heat source is installed on the outer wall of this small container, and this heat source heats the liquid in the small container. The liquid in the double-necked bottle was also heated, but in this type of thermos bottle, a screw was carved into the mouth of the small container, a nut was inserted from inside the double-necked bottle, and the nut was screwed onto the screw of the small container. Because the small container was attached to the outer wall of the lower end of the mouth bottle, the structure was complicated and the assembly work was extremely complicated.
Moreover, since the glass vacuum double bottle is used, there is a high risk of breakage during assembly, which increases the cost of the large product.

[Purpose of invention]

The present invention has been devised in view of the above points, and it is an object of the present invention to provide a thermos bottle that has an extremely simple structure, can be assembled extremely easily, and has a low product cost.

[Structure of the idea]

According to the present invention, the mouth of the small container is extended upward, and a cylindrical mouth part is provided to be inserted into the lower end opening of the double-necked bottle, and a sealing member is stretched around the outer periphery of the cylindrical mouth part of the small container. This objective is achieved only by providing a clamping part on the upper part that covers the peripheral wall of the lower end opening of the double-ended bottle in a sandwich-like manner.

[Example of idea]

Embodiments of the present invention will be described below with reference to the drawings.

The thermos bottle 1 includes a double-ended bottle 2 with openings at the upper and lower ends, an outer case 3 surrounding the double-ended bottle, a shoulder member 4 connected to the upper end of the outer case, and an inner container detachably attached to the center opening of the shoulder member. A stopper 5, an upper lid case 6 with a built-in bellows pump attached to the upper end of the shoulder member so as to be openable and closable, a small container 7 communicating with the lower end opening of the double-ended bottle, and a seal interposed between the small container and the double-ended bottle. member 8 and a heat source 9 for heating the liquid in the double-ended bottle.
and a bottom member 10 coupled to the lower end of the outer case.

The double-necked bottle 2 is a vacuum double bottle made of glass having a wide mouth at the upper end and a narrow mouth at the lower end, and the narrow mouth at the lower end is slightly extended downward to provide a hollow protrusion 11 inside.

The exterior case 3 is formed of a thin iron plate into a cylindrical shape, the upper end is bent inward, a threaded ring 12 is stretched on the inner wall of the lower end, and the lowermost end is curled inward.

The shoulder member 4 is provided with a mouth receiving part in the center that communicates with the upper end opening of the double-mouthed bottle, and a beak part on which the discharge pipe of the inner stopper 5 is placed is provided at the front part of the upper end of this mouth part receptacle. A wide mouth part is provided with the upper end of the receiving part widened into a dome shape, and a fitting part is provided that hangs down the outer wall of the upper end of this wide mouth part and forcefully fits the upper end of the exterior case.
The inner stopper 5 includes an inner stopper main body placed on the upper end of the mouth receptacle of the shoulder member, a pumping pipe whose upper end communicates with the inner stopper main body and whose lower end hangs down inside the double-ended bottle, and whose rear end communicates with the inner stopper main body. , and a discharge pipe whose tip is placed on the beak of the shoulder member and led to the outside of the outer case. The upper lid case 6 includes a bellows pump that sends air into the double-ended bottle via an inner stopper between the upper and lower lids, a spring that constantly pushes up the bellows pump, an upper plate that comes into contact with the top surface of the bellows pump, and a bellows pump. A pressing body for pressing the top case, a hinge device for hingeing the top case to the shoulder member, and a lock device for locking the top case to the upper end of the shoulder member are provided.

The small container 7 is formed into a small pot shape from a metal material with good thermal conductivity, and is provided outside the opening at the lower end of the double-ended bottle so as to communicate with the inside of the double-ended bottle. Small container 7
As shown in FIG. 2, the mouth is once recessed inward to form an annular groove 13, and the tip of this groove extends upward to form an internally hollow cylindrical mouth portion 14. This cylindrical mouth portion 14 has an outer diameter smaller than the inner diameter of the protruding portion of the double-necked bottle. The small container 7 has a recess 15 formed by recessing the center of the bottom inward, an angle member 16 is welded across the recess 15, and a heat insulating plate 17 is stretched around the outer corner of the lower part of the small container. There is.

18 is a protector that covers the double-ended bottle 2.

The sealing member 8 is made of a heat-resistant rubber material and is formed into a ring shape as shown in FIG.
and a protrusion 20 that fits into the annular groove 13 of the small container at the lower end of the holding part. This sealing member 8 may cover the protruding part 11 of the double-necked bottle while being stretched around the outer periphery of the cylindrical mouth part 14 of the small container 7. Alternatively, after being inserted into the protruding part 11 of the double-necked bottle, The cylindrical mouth portion 14 may also be fitted.

The heat source 9 is a semiconductor of 10W or less, which slows down the temperature drop of the hot water near the boiling point poured into the double-necked bottle, and maintains the temperature close to boiling water even over a long period of time, as shown in Figure 2. As shown, the lower end of the angle member 16 is brought into contact with the inside of the recess 15 of the small container by means of a screw 21. The terminal of one lead wire of the heat source passes through the through hole of the tightening member 23, which will be described later, and connects to the plug receiver 2.
5, and the terminal of the other lead wire is connected to the pilot lamp 26.

The bottom member 10 consists of a bottom body 22 having upper and lower openings, a tightening member 23 that surrounds the small container and pushes up the bottom of the double-ended bottle, and a bottom plate 24 that covers the center of the bottom of the bottom body. The bottom body 22 has a screw carved into the outer periphery of the upper end to be screwed into the threaded ring 12, and a plug receiver 25 at the rear end.
A pilot lamp 26 is held at each front end. The bottom body is provided with an annular flange portion 27 toward the center of the interior. The tightening member 23 consists of a step-shaped cylinder with a bottom, a through hole for a lead wire is bored in the center of the bottom, and a rubber bushing 28 is stretched in the through hole through which the lead wire passes. . This tightening member 23 has a stepped partial outer wall in contact with the upper surface of the annular flange portion 27 of the bottom body 22, and the tightening member rises by screwing the bottom body, and this tightening member The outside of the protruding portion 11 of the bottle 2 is pushed up, and at the same time, the small container is pushed up by the inner wall of the stepped portion of the tightening member that comes into contact with the outer peripheral corner of the lower part of the small container 7 via the heat insulating plate 17. . 29 is a handle.

[Effect of idea]

In this invention, the structure is extremely simple, and each part can be assembled sequentially from the outside of the bottom of the double-necked bottle, rather than from inside the double-necked bottle as in the conventional case, and the product cost is reduced. It is possible to achieve a huge cost reduction.

Further, liquid leakage can be easily and reliably prevented simply by screwing the bottom body.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view of an embodiment of the present invention;
The figure is an enlarged sectional view showing the main parts of the embodiment of the present invention. 1... Thermos bottle, 2... Double-ended bottle, 3... Exterior case, 4... Shoulder member, 7... Small container, 8... Seal member, 9... Heat source, 10... Bottom member, 14...
... Cylinder mouth part, 19... Clamping part.

Claims (1)

[Scope of utility model registration request] A double-ended glass vacuum double-ended bottle with openings at the top and bottom ends is provided, a shoulder member is connected to the upper end of the exterior case surrounding the double-ended bottle, a bottom member is connected to the lower end, and both sides are attached to the outside of the bottom opening of the double-ended bottle. A small container communicating with the mouth bottle is provided,
In a thermos bottle with a heat source attached to the lower end of the outer wall of the small container, the opening of the small container is provided with a cylindrical opening that extends upward and is inserted into the opening at the lower end of the double-necked bottle. 1. A thermos flask, characterized in that a sealing member is provided in tension and a clamping portion is provided on the upper part of the sealing member to cover the peripheral wall of the lower end opening of the double-necked bottle in the shape of a sandwich.