JPS5935167Y2 - thermos - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a small-capacity thermos flask, and more specifically, to the structure of an exterior body of a small-capacity thermos flask.

In this invention, the exterior body that should constitute the outer peripheral surface of the thermos bottle body is
It is divided into a lower opening side cylinder part and a bottom side cylinder part, both of which are made of synthetic resin and are screwed together, and a plurality of reinforcing ribs are provided on the inner surface of the bottom side cylinder part, extending from the bottom part to the back of the screw part. A thermos flask according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

This thermos flask has a small capacity, and its main body 1 is composed of an exterior body 2 made of synthetic resin that constitutes the outer circumferential surface and a liquid container 3 made of a vacuum double bottle that constitutes the inner circumferential surface. .

The exterior body 2 is divided into an upper cylindrical portion 2a on the lower side and a bottom cylindrical portion 2b on the lower half. The two are screwed together by screwing together a female screw 5 formed on the opening edge of the mouth-side cylinder portion 2a.

A lower mouth part 6, which serves as a lower part for supplying liquid to the liquid container 3 and a gutter-like liquid injection passage 8 from the liquid container 3, is integrally formed in the upper part of the lower part side cylindrical part 2a.

The upper opening of the lower opening 6 is covered with a lower opening cover 9 having a plug insertion hole 10.

Further, a plug 11 for opening and closing the liquid supply lower is screwed into the lower opening 6 through the plug insertion hole 10.

Furthermore, the liquid injection passage 80 is formed on the outer surface of the lower mouth side cylindrical portion 2a.
A handle 12 is integrally formed on the opposite side.

On the other hand, a cylindrical portion 13 in which no thread is formed is integrally formed on the upper edge of the male thread 5 in the bottom side cylindrical portion 2b.

Furthermore, on the inner surface of the bottom cylinder part 26, there are a plurality of reinforcing ribs 14 (six in this embodiment) extending from the bottom to the back of the screw part 4.
14... are integrally formed.

This reinforcing rib 14 serves to prevent the bottom side cylinder portion 2b and its threaded portion 40 from being deformed in the radial direction.

Reference numeral 15 indicates the reinforcing rib 14 on the inner surface of the lower mouth side cylinder portion 2a.
, 14 . A cutout recess 16 into which the cylindrical portion 13 of 2b fits is formed.

By fitting the cylindrical portion 13 into the notch recess 16, the threaded portion 4 is prevented from deforming inwardly when an impact is applied to the main body 1.

In addition, the threaded joint part between the lower mouth side cylinder part 2a and the bottom side cylinder part 2b is as follows.
It is fastened at appropriate locations with screws 17.

Reference numeral 18 is a receiving member that supports the liquid container 3.

In this embodiment, the screw 1T is fixed to a portion where the reinforcing lip 14Q is not provided, but the screw 17 may be fixed to the reinforcing lip 14.

Next, the effects of the thermos of the present invention are listed below.

That is, according to the present invention, (1) the exterior body 2 that constitutes the outer peripheral surface of the thermos bottle body 1;
Since the structure is divided into a lower opening side cylinder part 2a and a bottom side cylinder part 2b, both of which are made of synthetic resin and are screwed together, the structure of the exterior body 2 is significantly simplified, and costs are reduced. (2) A plurality of reinforcing lips 14 are provided on the inner surface of the bottom cylinder portion 2b, and are bent from the bottom to the rear of the threaded portion 4.
14... are integrally formed to prevent the bottom cylinder part 2b and the threaded part 4 from being deformed in the radial direction, so that the threaded joint part can be firmly connected. In addition to this, there are practical effects such as eliminating the possibility that the threaded joint will come off even when subjected to impact such as dropping.

[Brief explanation of drawings]

FIG. 1 is a semi-longitudinal side view of a thermos flask according to an embodiment of the present invention, and FIG. 2 is a plan view of the bottom cylindrical portion of the thermos flask of FIG. 1. 1... Thermos body, 2... Exterior body, 2
a...Lower mouth cylinder part, 2b...Bottom side cylinder part, 4...Thread part, 14...Reinforcing lip.

Claims (1)

[Scope of utility model registration request] The outer casing 2 that constitutes the outer circumferential surface of the thermos bottle body 1 is made of synthetic resin and is screwed together with a lower opening side joint 2a.
and the bottom side cylindrical part 2b, and the inner surface of the bottom side cylindrical part 2b is integrally provided with a plurality of reinforcing ribs 14, 14 extending from the bottom to the back of the screw part 5. A thermos flask characterized by the fact that it is formed.