JPH0317808Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to the structure of a liquid container such as a thermos flask.

(Prior art) Conventionally, liquid containers such as thermos flasks have
Although it has a certain degree of impact resistance against impact in the vertical direction, it is vulnerable to impact in the lateral direction, and the opening of the internal liquid container is easily damaged.
Resolving this remained a major issue.

(Purpose of the invention) The present invention is intended to solve the above-mentioned problems, and aims to provide a liquid container having a structure that can sufficiently withstand impacts from the lateral direction.

(Structure of the invention) Annular grooves are formed in the upper and lower parts of the outer periphery of the outer case constituting the outer periphery of the main body, and an annular member that protrudes radially from the outer periphery of the main body is provided in each of the annular grooves. , and an annular shock absorbing member made of an elastic body located on the inner peripheral side of the annular member are housed and arranged, thereby absorbing and mitigating the impact force acting on the main body from the lateral direction. It is.

(Example) Below, based on each example shown in the attached drawings,
The liquid container of the present invention will be explained.

FIG. 1 shows a thermos flask that is a first embodiment of the present invention.

The main body 1 of this thermos flask includes an outer case 2 forming the outer peripheral surface, a liquid container 3 made of a vacuum double bottle located inside the main body 1 and forming the inner peripheral surface, and an upper opening 3a of the liquid container 3 having a gasket. Shoulder member 5 abutted via 4
and a bottom member 6 that supports the liquid container 3 from below.
, and an upper tip 7 and a lower tip 8 attached to the top and bottom of the main body 1.

An inwardly directed flange 9 that engages with the shoulder member 5 to position the shoulder member 5 within the main body 1 is integrally provided on the upper end of the outer case 2 and projects therefrom. An annular buffer member 10 is interposed between the flange 9 and the shoulder member 5. The buffer member 10
has the function of absorbing horizontal and vertical impacts and mitigating the impact force on the shoulder member 5 and the liquid container opening 3a. In this embodiment, the upper tip 7 is screwed onto the upper end of the outer case 2.

The bottom 3b of the liquid container 3 is supported by a receiving member 11, and the upper end of the receiving member 11 is screwed together with the lower end of the shoulder member 5, forming a unit as a whole.

The receiving member 11 is supported by a bottom member 6 screwed onto the lower end of the outer case 2. and,
The lower tip 8 is screwed onto the bottom member 6.

A dish-shaped buffer member 12 is interposed between the receiving member 11 and the bottom member 6 so as to hold the lower end small diameter portion 11a of the receiving member 11 downward. The annular standing portion 12b absorbs the impact force in the vertical direction and the impact force in the lateral direction.

Therefore, as a feature of the present invention, the outer case 2
Annular members 13, 1 made of synthetic resin that protrude in the radial direction from the outer peripheral surface of the outer case 2 are provided at the upper and lower parts of the outer case 2.
3 are disposed via annular shock absorbing members 14, 14, respectively.

These annular members 13, 13 and shock absorbing members 14, 14 are positioned and attached to annular grooves 15, 15 recessed in the upper and lower parts of the outer periphery of the outer case 2.

The annular member 13 has open ends 13a, 13a as shown in FIG.
A is integrally provided with bosses 16, 16 for attaching a hanging cord. These bosses 16, 16 are
Holes 18, 18 for inserting 7 are bored,
By fitting the hanger 17 into the holes 18, 18, the open ends 13a, 13a are connected.

On the other hand, the shock absorbing member 14 is made of an elastic body and has a hollow tube shape, and is configured to absorb the shock force acting on the annular member 13 from the radial direction.

These annular member 13 and shock absorbing member 14 are attached as follows.

That is, after the shock absorbing member 14 is fitted into the annular groove 15 of the outer case 2, the annular member 13 is inserted from above.
and hang the open ends 13a, 13a.
They are connected by fitting into the holes 18, 18 of No.7.

In this configuration, when the main body 1 is dropped sideways, an impact force is first applied to the annular member 13, but the impact force is guided by the annular groove 15 and absorbed by the impact absorbing member 14. The impact force on the main body 1 is greatly reduced.

Note that the shock absorbing member 14 may have a triangular tube shape or a dogleg shape in cross section, as shown in the third embodiment (FIG. 4) or the fourth embodiment (FIG. 5). . In short, any material may be used as long as it can absorb impact force from the radial direction.

In the second embodiment shown in FIG. 3, a guide piece 19 is integrally provided on the annular member 13 to abut against the axial end face of the shock absorbing member 14. Note that the guide piece 19 is located in the annular groove 15 on the outer case 2 side.
A recess 20 that allows the guide piece 19 to move in the radial direction is provided at a position facing the guide piece 19 .

In the fourth embodiment shown in FIG.
are integrally protruded.

In the drawings, numeral 22 is a liquid inlet, and 23 is a plug.

(Effect of the invention) As described above, according to the invention, on the upper and lower parts of the outer periphery of the outer case 2, which constitutes the outer peripheral surface of the main body 1,
An annular groove 15 is formed in each annular groove 15, and an annular member 13 protrudes in the radial direction from the outer peripheral surface of the main body 1, and an elastic body located on the inner peripheral side of the annular member 13. Since the annular shock absorbing member 14 is housed and arranged, the annular member 13 and the shock absorbing member 14 are reliably prevented from falling off, and also act from the radial direction when the main body 1 is dropped sideways. The impact force is guided by the annular groove 15 and reliably absorbed by the impact absorbing member 14, which has the practical effect of significantly improving impact resistance.

In addition, since the annular member 13 is attached to the outside of the impact absorbing member 14, the impact absorbing member 14, which has relatively poor mechanical strength, is protected, and the impact absorbing member 14 protects the annular member 13. It also has the advantage of being able to absorb dimensional errors during assembly.

[Brief explanation of the drawing]

FIG. 1 is a half-longitudinal sectional view of a liquid container according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view of an annular member in FIG. 1, and FIGS. FIG. 7 is a half longitudinal sectional view of the upper part of the liquid container according to the second to fourth embodiments. 1... Main body, 2... Outer case, 13... Annular member, 14... Shock absorbing member.

Claims (1)

[Scope of utility model registration request] Annular grooves 15 and 15 are respectively formed in the upper and lower portions of the outer periphery of the outer case 2 constituting the outer periphery of the main body 1, and in each of the annular grooves 15, there are grooves that protrude in the radial direction from the outer periphery of the main body 1. Annular member 13
and an annular shock absorbing member 14 made of an elastic body located on the inner peripheral side of the annular member 13.