JPS6214950Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a method for using chopsticks all at once for instant foods such as cutlet ramen and katsupu udon that are enclosed in relatively small containers, and for relatively small bento boxes. When wrapping and accompanying chopsticks, we take care to avoid inconveniences such as chopsticks being too long to be packaged all at once, or chopsticks falling apart and being difficult to handle.
The two rods constituting the chopsticks can be folded at their longitudinal intermediate portions, and the two rods can be fitted and fixed to each other at their respective sides, and can be manufactured easily and inexpensively. This relates to foldable fitting chopsticks made of integrally molded synthetic resin, which are formed by integral molding of synthetic resin, and more specifically, each of the two rods constituting the chopsticks is made of a thin film at the longitudinally intermediate portion thereof. one of the rods has a first engaging recess and a first engaging protrusion that can be elastically fixed and detached from each other, and one rod has a second engaging convex portion on one side thereof. the two rods have a concave portion, and the other rod has a second engaging convex portion on one side thereof that can be elastically engaged and fixed to and detached from the second engaging concave portion; The present invention relates to foldable fitting chopsticks made of integrally molded synthetic resin, each of which is formed by integrally molding synthetic resin.

[Conventional technology]

Traditionally, the two rods that make up chopsticks can be folded at their longitudinal intermediate portions.
For example, foldable chopsticks in which each rod is formed to have a thin film-like flexible hinge portion, and a concave portion and a convex portion that can be elastically engaged and fixed and detached from each other in the longitudinal intermediate portion thereof are, for example. It is known from Japanese Utility Model Publication No. 53-21682, and a recess is formed on one side of one of the rods so that the two rods forming the chopsticks can be fitted and fixed together on their respective sides. At the same time, fitting chopsticks in which a convex portion is formed on one side of the other rod body so that the convex portion can be elastically engaged with and detached from the recessed portion in the one rod body is disclosed in, for example, Japanese Utility Model Application Publication No. 54-62882. It is known by
Conventionally, there have been no foldable fitting chopsticks that can be folded and fixedly fitted together.

[Problem that the invention attempts to solve]

The basic purpose of the present invention is to provide foldable fitting chopsticks that have not existed in the past, and this can be achieved relatively easily by combining the two conventional technologies mentioned above. Although this is possible, the more specific objective of manufacturing it as easily and inexpensively as possible by integral molding of synthetic resin cannot be sufficiently achieved by simply combining the above two conventional techniques.

This is because, when constructing fitting chopsticks using the technology related to the above-mentioned Japanese Utility Model Publication No. 54-62882, only a recess is formed in one rod, and a recess for engagement with the recess is formed in the other rod. Because the two rods that make up the chopsticks must be formed into different shapes, such as forming only the convex portion,
This is because it is necessary to prepare two types of molds used for integral molding of the synthetic resin, and two production lines are also required.

The present invention was made in view of the above circumstances, and the two rods having a relatively complicated shape constituting the folding type fitting chopsticks made of integrally molded synthetic resin are combined into one type of mold and one type of mold. It is an object of the present invention to enable manufacturing using only one production line, to easily perform the manufacturing with simple equipment, and to achieve a significant reduction in cost.

[Means for solving the problem]

In order to achieve the above object, the present invention provides foldable fitting chopsticks made of integrally molded synthetic resin having the basic configuration as described at the beginning. By forming a concave portion corresponding to the engaging concave portion and forming a convex portion corresponding to the second engaging convex portion on the opposite side surface, the two rods have the same shape. It takes the characteristic method of configuring the system.

[Effect]

The effects exhibited by the above characteristic configuration are as follows.

That is, instead of forming only one fitting recess and one protrusion on each of the two rods constituting the chopsticks as in the past, each rod has a fitting recess ( By forming both the convex portion (second engaging concave portion) and the convex portion (second engaging convex portion) so that the two rods have the same shape, an integrally molded synthetic resin The two rods with relatively complex shapes that make up the foldable fitting chopsticks are
It can now be manufactured easily and inexpensively with simple equipment using one type of mold and one production line, and is used especially as an accessory for instant foods such as cutlet ramen and cutlet udon. It has now become possible to satisfactorily achieve the important task of cost reduction, which is strongly required in many cases.

〔Example〕

Hereinafter, specific embodiments of the foldable fitting chopsticks made of integrally molded synthetic resin according to the present invention will be described with reference to the drawings.

That is, as shown in FIGS. 1 to 3, chopsticks
Regarding the two rods 1, 1 constituting the , each of the rods 1 can be folded and extended and fixed at the intermediate portion thereof, and both rods 1, 1 can be fitted and fixed together at their respective sides. In order to make the rods 1 and 1 removable, and furthermore to configure both the rods 1, 1 to have the same shape, each rod 1 is made of a thin film-like material at its longitudinal intermediate portion. A flexible hinge portion 2 and a first engagement recess 3 that can be elastically engaged and fixed with each other and detached from each other.
B and a first engaging convex portion 3A, and a second engaging recess 4 for fitting on one side thereof.
A, while the opposite side has the second
It is formed by integral molding of synthetic resin (for example, polypropylene resin) so as to have a second engagement convex portion 4B having the same shape as the convex portion that can be elastically engaged with and detached from the engagement concave portion 4A. Note that the thickness of the thin film-like flexible hinge portion 2 at the middle portion of each rod 1 is approximately 0.2 in the case of polypropylene resin, considering its flexibility and cyclic strength.
About mm is sufficient.

FIGS. 4A and 4B show that the foldable fitting chopsticks X made of integrally molded synthetic resin according to the present invention configured as described above are sealed in a relatively small container such as cutlet ramen or cutlet udon. This figure shows an example in which the short pieces are attached to the outside of the instant food 5 by folding and fitting together, and are packaged together with vinyl 6 or the like, and as is clear from this figure,
Chopsticks .

[Effect of idea]

As is clear from the detailed description above, according to the present invention, in each of the two rods constituting the foldable fitting chopsticks made of integrally molded synthetic resin, the second engaging recess is formed on one side of each rod. By forming a corresponding concave part and forming a convex part corresponding to the second engaging convex part on the opposite side surface so that the two rods have the same shape, The chopsticks have two functions: they are foldable and fit together, and the two sticks have relatively complex shapes.
With simple synthetic resin integral molding equipment that uses one type of mold and one production line, it has become possible to manufacture products very easily and inexpensively, especially cutlet ramen and cutlet udon. An excellent practical effect has been demonstrated in that it can sufficiently achieve the important task of cost reduction, which is strongly required when used as an accessory for instant foods.

[Brief description of the drawings]

The drawings show a specific embodiment of the foldable fitting chopsticks made of integrally molded synthetic resin according to the present invention, and FIG. 1 is an overall plan view in the extended fixed and fitted state;
2 is an enlarged cross-sectional view taken along the line -- in FIG. 1, FIG. 3 is an enlarged cross-sectional view taken along the line -- in FIG. 1, and FIGS. 1... Rod body, 2... Thin film-like flexible hinge part, 3
B...First engagement recess, 3A...First engagement convexity, 4A...Second engagement recess, 4B...Second engagement convexity.

Claims (1)

[Claims for Utility Model Registration] Each of the two rods constituting the chopsticks is provided with a thin film-like flexible hinge portion at the longitudinally intermediate portion thereof,
having a first engaging recess and a first engaging protrusion that can be elastically fixed and detached from each other, and
One rod has a second engaging recess on one side thereof, and the other rod has the second engaging recess on one side thereof.
Each of the two rods is formed by integral molding of synthetic resin so as to have a second engaging protrusion that can be elastically fixed and detached from the engaging recess. The foldable fitting chopsticks are provided with a recess corresponding to the second engagement recess formed on one side of each of the rods, and
A folding type fitting characterized in that the two rods are configured to have the same shape by forming a convex portion corresponding to the second engaging convex portion on the opposite side surface. Combined chopsticks.