JPS6025959Y2 - square pot - Google Patents

Description

[Detailed description of the invention] The present invention relates to a square pot having a square cylindrical outer case.
In particular, it concerns the structure of the bottom of such a square pot.

As an example of the conventional pot bottom structure,
In these pots, both the outer case and the bottom member have a circular shape, and the bottom member has a circular shape. It is attached by elastically engaging a plurality of shaped engaging claws with the lower edge of the outer case.

However, since these conventional pots have a circular outer shape, in order to provide elasticity to each engaging claw on the bottom member side, it is necessary to shorten the length of the engaging claw in the circumferential direction. Therefore, there was a problem in that the mounting strength of the bottom member was weakened.

Incidentally, when each engaging claw is lengthened in the circumferential direction, the engaging claw becomes arcuate and loses elasticity in the radial direction, making it impossible to elastically engage the engaging claw with the lower edge of the outer case.

In view of the above-mentioned problems with the conventional pot, the present invention has a rectangular outer shape and provides appropriate elasticity to the engaging claw formed on the bottom member, so that the bottom member can be easily attached. The object of the present invention is to provide a pot in which the bottom member can be firmly attached even if the bottom member is easily attached. In order to achieve this purpose, a bent edge is provided by bending the bottom edge of the rectangular cylindrical metal outer case inward, while a bottom member having a rectangular shape approximately the same as the bottom of the outer case is provided with a bent edge formed by bending the bottom edge of the outer case. It is characterized by an elastic plate that is horizontally elongated along the length of each side of the material and has outward engaging claws that are elastically engaged with the bent edges.

Hereinafter, the square pot of the present invention will be explained with reference to the first embodiment shown in FIGS. 1 and 2, and the second embodiment shown in FIGS. 3 and 4. A metal outer case 1 that accommodates a liquid container (vacuum duplex type) 3 is shaped into a rectangular cylinder, and the outline of a bottom member 2 attached to the bottom of the outer case 1 is made to match the bottom of the outer case 1. They are almost the same rectangular shape.

In addition, in the square pot of each embodiment, a bent edge 11 is provided at the bottom of the outer case 1 by bending the bottom edge of the outer case 1 diagonally upward inwardly, and a bottom member (made of plastic or resin) is provided at the bottom of the outer case 1. ) an outward engaging claw 21 that elastically engages with the bent edge 11 on the periphery of the bent edge 11;
An elastic plate 2I with a is integrally formed.

In each embodiment, an acid screw 23 is provided in the center of the bottom member 2.
An internal thread 21 having a male thread 25 is screwed into this internal threaded cylinder 22 to support the medium bottle 3.

In the first embodiment shown in FIGS. 1 and 2, the bent edge 11 on the outer case 1 side and the elastic plate 21 with engaging claws on the bottom member 2 side are arranged in the lengthwise direction of each side of the square shape. It is formed to be horizontally long (approximately 3/4 of the length of each side).

If the elastic plate 21 on the bottom member 2 side is formed along the length direction of each side of the square shape in this way, the elastic plate 21
has a substantially straight shape, and even when the elastic plate 21 is made horizontally long, it can maintain appropriate elasticity. This allows for relatively easy engagement.

Further, even if the engaging claw 21a can be relatively easily engaged with the bent edge 11 of the outer case, since the elastic plate 21 is horizontally long, the outer case cannot be folded. The range of engagement with the curved edge 11 is increased, so that the attachment of the bottom member 2 is strengthened.

In the second embodiment shown in FIGS. 3 and 4, the bent edge 11 on the outer case 1 side is shaped into small pieces to facilitate bending of the bent edge 11, and the elastic plate 21 of the two bottom members As in the case of the first embodiment, it is formed to be horizontally long along the length direction of each side of the rectangular shape.

Therefore, the bottom structure of this second embodiment also provides the same effect as that of the first embodiment.

Further, in this second embodiment, an upward extension piece 21b is formed on the elastic plate 21 on the side of the bottom member 2, a screw catch 29 is formed on the upper extension piece 21b, and a screw catch 29 is formed on the outer case 1. The screw 4 is screwed in through the screw through hole 19.

In this way, the bottom member 2 can be fixed even more firmly even if there are concerns about the strength of the folded edges 11 in the form of small pieces.

In each of the above embodiments, the bottom member 2 is pushed in from below the outer case 1, but at that time, the bent edge 11 and the elastic plate 21 elastically deform each other, and the bottom member 2 In the fitted state, the engaging claw 21a of the elastic plate 21 is engaged with the upper end of the bent edge 11.

Incidentally, in each of the above embodiments, the bottom member 2 is integrally formed as a whole and serves as the bottom cover, but in other embodiments, an elastic plate 21 is formed on a square frame member and is used as the bottom member 2. It is also possible to attach the bottom cover to the bottom member 2 by screwing or screwing.

Next, to explain the effects of the present invention, the square pot of the present invention has an outer case 1 and a bottom member 2 having a square shape, and the bottom member 2 has an engaging claw facing outward along the length direction of each side. By forming the elastic plates 21, 21, . 2 is easy to assemble, and even if the elastic plate 21 is made to maintain appropriate elasticity, by forming the elastic plate 21 horizontally, the elastic plate 21 and the outside can be easily assembled. The engagement range with the case bent edge 11 can be increased,
This has the effect that the attachment strength of the bottom member 2 can be improved.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view of the bottom of the square pot according to the first embodiment of the present invention, Fig. 2 is an exploded perspective view of the bottom of the square pot of Fig. 1, and Fig. 3 is a second embodiment of the present invention. FIG. 4 is a vertical cross-sectional view of a main part of the square pot shown in FIG. 3 in an assembled state. 1...Outer case, 2...Bottom member, 3.
...Liquid container, 11...Bent edge, 21...
...Elastic plate, 21a...Engaging claw.

Claims (1)

[Scope of utility model registration request] A bent edge 11 is provided by bending the bottom edge of the rectangular cylindrical metal outer case 1 inward for accommodating the liquid container 3, and a bottom portion having a square shape substantially the same as the bottom of the outer case 1 is provided. Material 2
The bottom member 2 is provided with elastic plates 21, 21, . A square pot that is characterized by: