JPS633636Y2 - - Google Patents

Description

[Detailed description of the invention] The invention relates to a thermos flask equipped with a protective cover that covers the outer periphery of the inner bottle surrounded by an outer case.
Its purpose is to provide a thermos flask to which a protective cover can be easily and reliably attached.

The thermos flask 1 includes an inner bottle 2, an outer case 3 surrounding the inner bottle, a protective cover 4 that covers the outer periphery of the inner bottle within the outer case, a drain member 5 that is forcibly fitted to the upper end of the outer case, and a center of the drain member. An inner plug 6 that is removably screwed into the opening, an annular gasket 7 interposed between the lower end of the center opening of the draining member and the mouth of the inner bottle;
An annular upper cushioning material 8 stretched around the lower end of the draining member, an upper lid 9 covering the inner plug, an upper tip 10 interposed between the inner plug and the upper lid, and a lower end of the outer case. A threaded ring 11 that is force-fitted, a bottom member 12 that is screwed onto the threaded ring, a tightening member 13 that tightens the inner bottle, an annular lower cushioning material 14 stretched around the outer periphery of the threaded ring, and a bottom member. It is composed of a lower lid body 15 that covers the bottom surface of the housing, and a lower tip 16 that is interposed between the bottom member and the lower lid body.

The draining member 5, which is force-fitted to the upper end of the exterior case 3, has a peripheral wall part 17 forming a central opening, a beak part 18 that is bowl-shaped upwardly outward from the upper end of the peripheral wall part, and a beak part 18 of the beak part. A stepped shoulder portion 19 extending outward from the upper end toward the lower portion is integrally molded.

On the inner periphery of the peripheral wall of the draining member, there is a female screw 2 for the inner plug.
0 is engraved.

The beak 18 of the draining member has an annular hanging wall 21 on the lower wall that restricts outward expansion of the gasket 7, which will be described later.

The shoulder portion 19 of the draining member is provided with a male thread 22 for the upper lid body which screws the upper lid body 9 onto the outer wall surface, and the lowest hanging outer wall 22 of the shoulder portion is provided below the male thread for the upper lid body.
3, and an upper locking piece 24 for locking a hanging cord is integrally molded at the rear of this lowest hanging outer wall.

This upper locking piece has a horizontally long vertical hole 25 through which a hanging cord can be inserted.

The inner plug 6 is filled with a heat insulating material inside, has a female thread carved into the outer periphery of the lower part to be screwed into the male thread for the inner plug of the draining member, and has an annular inner plug packing at the upper end of the female thread. It is set up.

The upper lid body 9 is formed into a cylindrical shape with a bottom, and has a female thread carved into the inner periphery of the upper end to be screwed into the male screw for the upper lid body of the draining member, and is turned upside down and inserted into the shoulder portion of the draining member. It is attached to.

The upper lid body can also be used as a top.
The upper stopper 10 is formed into a cylindrical shape with a bottom, and is inverted and loosely fitted between the outer periphery of the inner stopper and the upper lid.

An annular gasket 7 closely interposed between the lower end of the peripheral wall 17 of the draining member and the two mouths of the inner bottle is attached to the upper wall 26.
and an annular inner wall 27 surrounding the outer peripheral wall of the mouth of the inner bottle.
This inner wall and an annular outer wall 28 provided with an annular gap are integrally molded.

The inner periphery of this outer wall is provided with a concave portion 29 or a convex portion 29 for locking a protective cover, which will be described later.

The outer peripheral surface of the outer wall 28 is connected to the hanging wall 21 of the drainage member.
It is regulated to prevent it from expanding outward when it comes into contact with.

The protective cover 4 consists of an upper cover 4a that covers the shoulder of the inner bottle 2, and a lower cover 4b that covers the body and bottom of the inner bottle.

The upper cover 4a has a protrusion 3 on the outer periphery of the upper end that engages with a recess 29 or a protrusion 29 on the outer wall of the packing 7.
0 or a recessed portion 30 is provided, and a male thread 31 for the lower cover, into which the lower cover 4b is screwed, is carved on the inner periphery of the lower end.

The upper end of the upper cover 4a is engaged with a recess 29 or a protrusion 29 on the outer wall of the packing 7, and
7 and the outer wall 28 .

The lower cover 4b has a female screw 32 carved on the outer periphery of the upper end to be screwed into the male screw 31 of the upper cover.

Threaded ring 11 forcefully fitted to the lower end of the exterior case
In this case, a female screw 33 for the bottom member to which the bottom member 12 is screwed is carved on the inner periphery, and a lower locking piece 34 for locking the suspension string is integrally molded on the rear outer wall surface.

This lower locking piece 34 is formed to have a similar shape to the upper locking piece 24, and has a horizontally long vertical hole 35 through which a hanging cord can be inserted.

The bottom member 12 includes an inner circumferential wall portion 12a having a central opening;
A top surface portion 12 extending outward from the upper end of this inner peripheral wall portion
b and an outer peripheral wall portion 12c extending upward from the tip of the top surface portion are integrally molded.

A female thread for a tightening member, into which a tightening member 13 to be described later is screwed, is carved on the inner circumference of the inner peripheral wall portion 12a of the bottom member.

The outer circumferential wall portion 12c of the bottom member has a male thread 36 for a lower lid, into which a lower lid 15, which will be described later, is screwed onto the outer periphery of the lower end.
A male screw 37 is carved on the outer periphery of the upper end to be screwed into a female screw 33 for the bottom member of the threaded ring 11.

The tightening member 13 is formed in a cylindrical shape with a bottom, and has a male thread cut into its outer periphery to be screwed into a female thread for the tightening member on the inner circumferential wall portion 12a of the bottom member 12.

The upper end of this tightening member 13 is screwed into contact with the bottom of the inner bottle via the lower cover 4b.

38 is a bottom relaxation material interposed between the bottom of the inner bottle and the tightening member 13, and is formed in a cylindrical shape.
Before the upper end of the tightening member 13 comes into contact with the bottom of the inner bottle, it first comes into contact with the bottom of the inner bottle to reduce the impact on the inner bottle.

The lower lid body 15 is formed in a cylindrical shape with a bottom,
A female thread 39 is cut on the inner periphery of the upper end to be screwed into a male thread 36 for the lower lid of the outer peripheral wall 12c of the bottom member 12.

The lower tip 16 is connected to the inner peripheral wall 1 of the bottom member 12.
It is loosely fitted between the top surface portion 12b and the lower lid body 15 surrounding the outer periphery of the portion 2a.

This lower tip 16 is a stack of two or more tips placed in the lower lid body.

The upper cushioning material 8 is formed into a ring shape from an elastic material such as rubber, and has a horizontally long through hole in the rear part.
The front part is thick, and when viewed from above, this thick part is cut out in an inwardly curved shape.

This upper cushioning material 8 is stretched over the outer circumferential surface of the lowest hanging outer wall 23 of the shoulder portion 19 of the draining member, with the upper locking piece 24 of the draining member passing through and protruding through the rear through hole.

The lower cushioning material 14 is made of an elastic material such as rubber and is formed into a ring shape similar to the upper cushioning material 8. The lower cushioning material 14 has a horizontally long through hole in the rear part, and has a thick front part. This thick part is cut out in an inwardly curved shape.

This lower cushioning material 14 is stretched over the outer circumferential surface of the screw ring 11, with the lower locking piece 34 of the screw ring passing through and protruding from the rear through hole.

A handle 40 is fixed to the rear longitudinal direction of the exterior case 3.

As described above, in the present invention, the gasket on the rim of the inner bottle is formed into a double wall consisting of the upper wall and the inner wall and the outer wall hanging downward from the outer peripheral edge of the upper wall. An annular concave or convex portion is integrally molded on the inner periphery,
A hanging wall is provided at the lower end of the outer periphery of the center opening of the draining member, and a hanging wall is provided in contact with the outer wall, and an annular convex portion or a recess is provided on the outer periphery of the upper end of the protective cover that covers the outer periphery of the inner bottle.
Since this protrusion or recess is fitted into the recess or protrusion of the packing, the structure is simple and installation work is easy, and the protrusion or recess of the protective cover is fitted into the recess or protrusion of the outer wall of the packing. Just by fitting it in, by tightening the tightening member at the bottom of the inner bottle, the outer circumferential wall of the packing is prevented from expanding outward by the hanging wall of the draining member. The protrusions or recesses of the protective cover can be securely fixed without coming off.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a partially sectional exploded view showing the main parts of the present invention. 1... Thermos flask, 2... Inner bottle, 3... Outer case, 4... Protective cover, 5... Drainer member, 7...
Patchkin, 21... Hanging wall of drainage member, 26...
Upper wall of packing, 27... Inner wall of packing, 2
8... Outer wall of Patsukin.

Claims (1)

[Scope of utility model registration request] An inner bottle surrounded by an outer case, a draining member attached to the upper end of the outer case, a packing interposed between the mouth edge of the inner bottle and the periphery of the central opening of the draining member, and a protective cover that covers the outer periphery of the inner bottle. and an inner stopper that is detachably attached to the central opening of the draining member, the above-mentioned stopper is attached to an upper wall that abuts the upper end of the mouth edge of the inner bottle, and that hangs downward from the outer peripheral edge of the upper wall. The inner wall that contacts the outer periphery of the mouth edge of the inner bottle and the outer wall outside the inner wall are integrally molded, and an annular recess or protrusion is formed on the inner periphery of the outer wall. A hanging wall surrounding the outer periphery of the outer wall of the packing is provided at the lower end of the outer periphery of the opening, while an annular protrusion or recess is provided on the outer periphery of the upper end of the protective cover, and this protrusion or recess is connected to the recess or protrusion of the outer wall of the packing. A thermos flask characterized by being fitted together.