JPH09108033A - Comb and manufacture of comb - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to use a comb at a site where the amt. of hair is a little by forming a number of comb teeth at a specified interval on each one side edge of comb half base and combining and bonding the half bases in such a way that these comb teeth forming positions are positioned between each comb teeth on the mutual opposite face sides on each comb half base. SOLUTION: A comb base is divided in the thick thickness direction to form two comb half bases 1a and 1b and a number of comb teeth 2 are arranged at a specified interval respectively on one side edge of the comb half bases 1a and 1b. In addition, when the comb half bases 1a and 1b are developed and molded, a central line 3 is provided at the dividing line position of each comb half base 1a and 1b and both comb half bases 1a and 1b are laminated by bending this central line 3 in such a way that both comb half bases 1a and 1b are faced to each other to form an integrated comb. It is possible thereby to use it at a site where the amt. of hair is a little without damaging the head skin, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a comb and a method for manufacturing the comb, and more particularly to a comb and a method for manufacturing the comb which are suitable for use on a portion having a small amount of hair.

[0002]

2. Description of the Related Art A conventional comb manufacturing method is a method in which a natural material such as wood such as boxwood, beef horn, and gypsum is processed into a plate shape, or a metal plate material such as synthetic resin and aluminum is formed at a constant pitch. The comb teeth of the comb were formed by cutting.

An injection molding method has also been known in which a mold for manufacturing a comb is prepared and a synthetic resin is injected into the mold cavity at a high temperature and a high pressure to manufacture the comb.

As another manufacturing method, in particular, as a method of manufacturing combs having comb teeth and a narrow tip pitch of the comb teeth, perforations corresponding to the tip pitch of the comb teeth are formed on the side edge portion of the comb base. There is also a method of implanting comb teeth one by one in the hole.

Alternatively, the comb teeth are aligned and fixed in advance with the tip pitch of the comb teeth being narrowed, and then the comb base is formed by injection molding, whereby the comb teeth and the comb base are integrally joined. There is also a method (insert molding method).

[0006]

[Problems to be Solved by the Invention] The number of hair flows to be divided during hair styling when styling hair with a small amount of hair such as eyelashes and eyebrows, or thin hair (people with a small amount of hair) often seen in the elderly. In order to increase, the comb teeth and combs with a narrow tip pitch of the comb teeth are suitable.

However, in the case of molding by the above-mentioned cutting method, the thickness of the cutting tool (eg, the thickness of a circular saw) becomes cutting white, and therefore the comb teeth of the comb and the base interval L1 of the comb teeth.
Cannot be less than or equal to the thickness of the cutting tool.

Also in the general injection molding method, the comb teeth of the comb forming a gap between the comb teeth presents a convex partition wall in the mold, which is made of a synthetic resin of high temperature and high pressure during molding. In order to withstand the fluid pressure, a certain thickness or more is absolutely necessary.

That is, in a comb molded product completed by a cutting method or an injection molding method, a comb-tooth base interval L1 is provided.
Has a drawback that it cannot be less than 0.3 mm.

On the other hand, the planting method and the insert molding method have the drawback that the manufacturing process is complicated and that the product cannot be provided at low cost.

As the material of the comb teeth used in the insert molding method, a metal material is used in order to withstand the flow pressure of synthetic resin at high temperature and high pressure, but this material has a drawback that it is inferior in usability because of its high rigidity. . If you make the comb teeth thinner,
Since the tip inevitably becomes sharp, there is a danger that the scalp and the like will be easily damaged.

[0012]

In order to solve the above problems, a comb according to the present invention has a comb base divided into two in the thickness direction to form a pair of comb half bases. A large number of comb teeth are formed on each one side edge of the comb at predetermined intervals, and the comb bases are combined and combined so that the comb teeth forming positions are located between the comb teeth on the opposite sides of each comb half base. It is a comb that is characterized by having done.

According to a second aspect of the present invention, the first step of forming a pair of comb half bases in which the comb base is divided into two in the thickness direction, and the pair of comb half bases are developed and The second step of forming a large number of comb teeth at a predetermined interval on each one side edge of the comb half base, and the comb tooth forming position is located between the comb teeth on the facing side of each comb half base. And a third step of combining and combining the semi-bases of the comb as described above.

According to the third aspect of the present invention, the first step of forming a pair of comb half bases in which the comb base is divided into two in the thickness direction, and the pair of comb half bases are developed and The second step of forming a large number of comb teeth at a predetermined interval is formed simultaneously with the first step on each one side edge of each comb half base, and the comb tooth forming positions are located on opposite sides of each comb half base. And a third step of combining and joining the semi-bases of the comb so that they are located between the comb teeth.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The comb base is the cheapest to be formed by a general injection molding method, but may be formed by a cutting method.

In the case of molding with a flexible and bendable synthetic resin (eg polypropylene), a pair of comb half bases are developed in line symmetry and molded integrally, and then with a center line (hinge). It can also be fixed by bending and integrated.

Next, an embodiment of the present invention will be described with reference to the drawings.

The present invention is configured as described above, and it is possible to increase the number of comb teeth in a constant width as compared with the comb formed by the conventional molding method.

That is, if the number of comb teeth is increased with a comb having the same effective width, the number of divided hair flows at the time of hair styling is increased.
The effect of evenly adjusting the hair flow on a portion having a small amount of hair such as an eyebrow or on a hair having a small amount of hair is enhanced.

Further, since it is possible to select a synthetic resin material having an appropriate elasticity, even if the comb of the present invention is used in a soft part of the skin around the eyes such as eyelashes and eyebrows, the comb tooth tip of the comb is used. There is little danger of scratching the skin.

Reference numeral 1 is a comb base made by injection molding of synthetic resin, and the comb base 1 is divided in the thickness direction to form two comb half bases 1a and 1b.

A large number of comb teeth 2 are planted at predetermined intervals on one side edge of the comb half bases 1a, 1b. Further, when the comb halves 1a and 1b are expanded and formed, a center line 3 is provided at a partition line position of both comb pedestals, and when the center line 3 is bent, both comb half pedestals are joined to face each other. Become.

By bending from the center line 3, the comb half bases 1a and 1b are superposed to form an integral comb.

The comb halves 1a and 1b may be joined by ultrasonic waves, high frequencies, adhesives, or the like, but may be joined by forming an undercut at the joints.

Further, in the method of manufacturing a comb according to the present invention, a pair of comb half bases 1 in which the comb base is divided into two in the thickness direction is used.
a first step of forming a and 1b, and a second step of developing the pair of comb half bases and forming a large number of comb teeth 2 at a predetermined interval on one side edge of each of the comb half bases And a third step of combining and combining the comb half bases so that the comb tooth forming position is located between the comb teeth on the facing side of each comb half base, but due to the convenience of the molding step, It is also possible to mold the first step and the second step at the same time.

(Comparative Example) In the prior art, the comb teeth 2 and the base interval L1 between the comb teeth 2 are 0.3 mm due to the material strength.
From the material strength, the width t of the comb teeth 2 is generally set to 0.7 mm, but in this case, the pitch L2 of the comb teeth 2 is 1.0 mm and the effective comb width L3 is 24 mm. , The number of comb teeth is 24.

(Example) On the other hand, in the present invention, the comb teeth 2
The base interval L1 of the comb teeth 2 can be set to ≦ 0.3 mm. As an example, when this is 0.1 mm and the width t of the comb teeth is 0.7 mm using the same material, Pitch L
2 can be 0.8 mm, and when the effective comb width L3 is 24 mm as in the comparative example, the number of comb teeth is 30.

[0028]

Therefore, in the comb according to the present invention, when the combs have the same effective width, the number of comb teeth of the comb increases,
As a result, the pitch of the comb teeth becomes smaller. Therefore, when used on a portion with a small amount of hair, such as eyelashes, eyebrows, and hair, without deteriorating the feeling of use, the hair flow can be finely combed to be evenly adjusted.

[Brief description of the drawings]

FIG. 1 is a front view of a half base of the present invention in a developed state.

FIG. 2 is a side view of the same.

FIG. 3 is a front view of the comb in which the half bases are joined and integrally combined.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a sectional view taken along line CC of FIG. 4;

FIG. 7 is a front view of a conventional comb.

FIG. 8 is a sectional view taken along line DD of FIG. 7;

[Explanation of symbols]

 1 Comb base 1a, 1b Comb half base 2 Comb teeth 3 Center line L1 Comb tooth base spacing L2 Comb tooth pitch L3 Effective comb width t Comb width

Claims (3)

[Claims] 1. A pair of comb halves is formed by dividing the comb pedestal into two in the thickness direction, and a large number of comb teeth are formed at predetermined intervals on one side edge of each of the comb halves. A comb, wherein the comb bases are combined and coupled so that the comb teeth forming position is located between the comb teeth on the opposite side of each comb half base. 2. A first step of forming a pair of comb half bases in which the comb base is divided into two in the thickness direction, and the pair of comb half bases are developed, and each of the comb half bases is expanded. The second step of forming a large number of comb teeth at one side edge at a predetermined interval, and the comb half bases so that the comb teeth forming positions are located between the comb teeth on the opposite sides of each comb half base. A method of manufacturing a comb, comprising a third step of combining and joining the stands. 3. A first step of forming a pair of comb half bases in which the comb base is divided into two in the thickness direction, and the pair of comb half bases are developed, and each of the comb half bases is expanded. The second step of forming a large number of comb teeth at a predetermined interval on one side edge is formed simultaneously with the first step, and the comb tooth forming position is located between the comb teeth on the facing side of each comb half base. A method of manufacturing a comb, comprising a third step of combining and joining the semi-bases of the comb so that they are positioned.