JPH0325652Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention is a synthetic resin molded product that is advantageous for carrying or attaching to other products by making it into a folded shape compared to the shape in normal use. This invention relates to table utensils such as spoons that are easy to attach directly to foods such as desserts, and toothbrushes that are easy to carry.

(Prior art) Regarding synthetic resin molded products that can be made compact by folding,
Inventions etc. described in Publication No. 142 (in addition,
No. 143, Jitko No. 52-25425) exists. The above-mentioned idea concerns folding chopsticks, in which the upper and lower halves of the chopsticks are connected by a thin bendable part so that the chopsticks can be folded, and when the chopsticks are stretched into the shape for use, the shape is retained by a latching mechanism. I can do it.

(Problems to be solved by the invention) On the other hand, considering the manufacturing method in the above-mentioned invention, the injection mold used must incorporate complex mechanisms such as split molds and slide structures due to its shape. Therefore, there was a problem that the number of molds required was reduced and the cost became high. SUMMARY OF THE INVENTION In order to eliminate the above-mentioned drawbacks of the prior art, the present invention aims to provide a foldable injection molded synthetic resin product having a shape and structure that can be produced at low cost.

(Means for solving the problem) The structure of the present invention for achieving the above object will be explained with reference to a drawing of an embodiment of a spoon.A scooping part 1 and a handle part 2 are connected by a bendable part 3. The scooping part 1 and the handle part 2 can be bent around the bendable part 3, as shown in FIG.

The mechanism for maintaining the shape during use is the fourth to
As shown in the enlarged view of FIG. 6, a retaining portion 4 and a fitting portion 5 are provided. The bendable part 3, the retaining part 4, and the fitting part 5 are formed on both sides of the approximately W-shaped parting line of the injection mold shown by the broken line as shown in FIG. It is possible to open the loading line and take it out without any difficulty.

(Function) The present invention uses the above-mentioned means to provide a fourth method at low cost.
The spoon shown in FIG. 1 having the detailed structure shown in FIG.
When in use, it is possible to fold it in the opposite direction and fit the fitting part 5 into the retaining part 4 against elasticity as shown in FIG. 8, so that it can be held in the shape when in use as shown in FIG. 3.

(Embodiment) Below, an embodiment of the present invention will be explained about a spoon according to the drawings. As shown in FIG. establish. 4 to 7, the structure of the bendable part 3, retaining part 4, and fitting part 5 will be explained in detail.As shown in Fig. 7, the bendable part 3 is approximately W.
A stopper is provided with a thin wall at the center corner of the mold parting line so that the engagement surface 41 of the stopper part 4 and the engagement surface 51 of the fitting part 5 are perpendicular to the direction of rotation about the bendable part 3. Part 4, Inset part 5
will be established.

A folding spoon formed as shown in Figure 1 can be folded into a compact shape as shown in Figure 2, and if it is necessary to hold it in this folded form, it can be folded as shown in the figure. By providing a fixing part 7 and a wall hanging hole 6, it becomes possible to maintain the folded shape by folding the tip of the spoon scooping part 1 and hanging it on the fixing part 7 as shown in FIG.

When in use, the scooping part 1 and handle part 2 are folded into the bendable part 3
The fitting part 5 is fitted into the retaining part 4 against elasticity, and the structure shown in FIG. 8 can maintain the shape when used as shown in FIG. 3.

(Effects of the invention) The spoon having the structure of the invention shown in the examples can be made compact in length to about half, making it easy to carry around or attach to cup foods, etc. A complicated and large-scale mold structure such as a mold or a slide mold is not required, and therefore a large number of molds can be made, and an inexpensive folding spoon can be provided, which is excellent in practical use. Furthermore, the present invention can be applied to not only spoons but also tableware such as forks and knives, toothbrushes, etc., and provides an excellent foldable molded product made of synthetic resin.

[Brief explanation of drawings]

Figure 1 is an oblique projection view of a spoon when the present invention is applied during molding, Figure 2 is an oblique projection view of the spoon in Figure 1 in a folded state, and Figure 3 is a state in which the spoon in Figure 1 is opened and stretched. An oblique projection view is shown. Figure 4 is a vertical sectional view taken along the line C-C in Figure 5, and Figure 5 is a vertical cross-sectional view of the
Fig. 6 is a bottom view of Fig. 5, Fig. 7 is a layout of the molded parts of the mold of Fig. 1, Fig. 8 shows the fitted state. An enlarged vertical cross-sectional view of part A. 1... Scooping part, 2... Handle part, 3... Flexible part, 4... Retaining part, 5... Fitting part, 6...
Wall hanging hole, 7... Folding fixing part, 41... Receptacle engagement surface, 51... Fitting part engagement surface.

Claims (1)

[Scope of utility model registration request] By dividing the shape of the molded product into two or more parts, connecting the parts with flexible parts and folding them, it is possible to supply them in a compact size. In a molded product that can be held, a bendable part connecting the scooping part and the handle is formed on both edges of the handle with a roughly W-shaped parting line, and a stopper on the scooping part side is provided between the bendable parts. This foldable molded product has a hook-shaped fitting part on the handle side, which when opened and stretched during use, latches against each other against elasticity and locks when the engaging surfaces are aligned.