JPS5941790Y2 - Stoppers for liquid containers such as thermos flasks - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stopper for a liquid container equipped with an inner container, such as a thermos flask or an electric heat-retaining pot.

The stopper of the present invention relates to a so-called screw stopper that opens and closes a liquid dispensing passage in an inner container by rotating the stopper, and is formed by covering the head of a hollow stopper body with a cap made of a thin metal plate.

In order to prevent the relative rotation between the hollow stopper and the thin metal plate cap, the present invention uses a position indicating member to fix the two, and the present invention is a thermos flask that does not require any special parts to prevent the relative rotation. The present invention is characterized by providing a stopper for a liquid container.

The present invention will be explained in detail below based on embodiments shown in the drawings.

The embodiment shown in the figure is an embodiment of the present invention in a thermos flask, and the container body 1 is composed of an outer case 2, a lower opening member 3, an annular top plate 4, a reinforcing member 5, a handle 6, etc. An inner container 7 consisting of a vacuum double bottle is housed in the container.

A liquid injection space 10 is formed between the beak part 8 of the lower mouth member 3 and the beak cover part 9 of the top plate 4, and a liquid injection space 10 is formed at the tip thereof.
6 is provided with a flap 11'.

The liquid injection space 10 communicates with the inside of the inner container 7 through the opening 11 of the lower mouth member 3, and forms a liquid pouring passage a.

A screw 13 is formed on the inner surface of the central cylindrical portion 12 of the lower mouth member 3, so that the plug A can be screwed into the screw 13.

The plug A shown in FIG. 1 includes a synthetic resin hollow plug body 16 formed by force-fitting and integrating a dish-shaped top plate 14 located above and a stepped bottomed cylindrical base 15 located below; A thin metal plate cap 1 that is placed over the head 17 of the hollow plug 16
It consists of 8.

A heat insulating material 19 is disposed inside the hollow plug body 16, and is fixed by a hanging projection 20 protruding from the back surface of the top plate 14.

The base body 15 has a maximum diameter portion 27, a large diameter portion 21. The medium diameter portion 22 is formed in four stages, including a medium diameter portion 22 and a small diameter portion 23. A screw 24 that is screwed into the screw 13 is formed on the outer peripheral surface of the medium diameter portion 22, and a lower mouth member 3 is formed at the upper end of the small diameter portion 23. An annular packing 25 for closing the opening 11 is fitted.

A concave portion 2 is provided at a position eccentric from the center of the plug on the top plate 14.
8, a hole 29 is provided in the center thereof, and a hole 30 is also provided in the corresponding position of the cap 18, and the recessed portion 28
Then, insert the insertion part 32 of the position display member 31 into the hole 30 of the cap 18, and use the screw 33 screwed into the position display member 31 to connect the cap 18 to the top plate 14 and the hollow stopper 1.
It is stuck at 6.

The position display member 31 has a flange 34 on the top of the insertion portion 32, and an explanation such as ``When pouring, turn the stopper to the left and align it with the spout'' is written on the top surface 35.

This position display member 31, as shown in FIG.
It is located 1800 degrees apart from the spout 36, and the stopper A is 180 degrees apart.
When rotated, it is positioned so that it aligns with the spout 36, indicating that the stopper A remains open.

The position indicating member 31, the recessed part 28, and the two holes 3
0.29 can be set in any shape, but it is convenient to set it as shown in FIG. 2 because it makes it easier to tighten the screw 33.

In this embodiment, after the cap 18 is fixed to the top plate 14 using the position indicating member 31 and screws 33, the top plate 14 and the base body 15 are integrated by force fitting, and then the lower edge 37 of the cap 18 is The cap 18 and the hollow stopper 16 are bent inward and brought into close contact with the lower surface of the maximum diameter portion 27.
We are trying to integrate with

However, it is also possible to omit the step of bending the lower edge portion 37 inward and fix the cap 18 to the hollow plug body 16 only by fastening with the position indicating member 31 and the screws 33.

In the above embodiment, the thin metal plate cap 18 is fastened to the hollow stopper 16 using screws using the position indicating member 31, but as shown in FIG. May be combined.

That is, the cylindrical portion 32 consists of the collar portion 34a and the cylindrical portion 32a.
A position indicating member 31 made of an elastic material such as synthetic resin and having a hook portion 39 at the lower end of the cap 18 and a plurality of grooves 40, 40 in the cylindrical portion 32a is attached to the cap 18.
The cap 18 is forcibly fitted into the concentric holes 30a and 29a provided in the top plate 14, and the hollow stopper 16 is extended to the top plate 14 by utilizing the elastic deformation of the cylindrical portion 32a of the position indicating member 31.
It may be attached to.

Further, as shown in FIG. 4, a position indicating member 31 consisting of a flange portion 34b and a shaft portion 32b and having a screw 41 carved on the outer periphery of the shaft portion 32b is attached to a concentric hole 30b provided in the cap 18 and the top plate 14. The cap 18 may be fixed to the hollow stopper 16 by fitting and screwing into the sign plate 29b.

Further, as shown in FIG. 5, the position indicating member 31 may have a rivet structure, and the cap 18 may be fixed to the hollow stopper 16 by caulking the lower end 42 of the cylindrical portion 32c.

Note that 34c is a flange, and 29c and 30c are holes.

Since the present invention has the above-mentioned configuration, relative rotation between the hollow stopper and the thin metal plate cap can be reliably prevented using the position indicating member, thereby reliably preventing the cap from spinning idly even after long-term use. It is possible to achieve the effect of being able to

Also, according to the present invention, in order to prevent the cap from spinning idly,
Since no special parts are required and the position indicating member, which has been an essential part in the past, is used, the number of parts and assembly man-hours do not increase, which is advantageous in terms of manufacturing.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of parts constituting the main part and a longitudinal section showing a part thereof, Figs. 3 to 5 FIG. 2 is a longitudinal sectional front view showing a main part of another embodiment. 16...Hollow plug body, 17...Head, 1
8... Cap made of thin metal plate, 31...
Position display member.

Claims (1)

[Scope of utility model registration request] In a stopper for a liquid container such as a thermos flask, in which the head of a hollow stopper is covered with a thin metal plate cap, the thin metal plate cap is fixed to the hollow stopper using a position indicating member at a position eccentric from the center of the stopper. A stopper for a liquid container such as a thermos flask.