JPS5917270Y2 - electric razor outer blade - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an outer blade of an electric razor, and more particularly, to the thickness of the outer blade.

In particular, the present invention relates to an outer blade of an electric razor in which a thin metal plate is used for the outer blade, the razor head is composed of two or more ridges, and the inner blade moves back and forth.

Electric razors in which the inner blade moves reciprocally have generally had a shape as shown in FIG. 1.

The outer cutter 1 has a semicylindrical shape as shown in the figure,
The movement of the outer blade during use is mostly shown in the diagram.
Limited to Y and Y' directions.

If the front side is the side with the switch, or the side where the switch is visible on the right side, the razor is usually moved as shown by the arrow in Figure 3 in the same way as when shaving the beard. The skin moves on the outer cutter 1 from the back side Y to the front side Y'.

That is, with the surface visible in FIG. 1 (the surface where the switch 3 is located) as the front, it moves from Y to Y' in the figure.

The movement of this razor differs depending on the direction of your dominant arm, but if you take into account that most people are right-handed, most people are right-handed.

Although the direction of movement of this type of razor is almost fixed, the thickness of the outer blade has not been set in consideration of this unique direction of movement of the razor, and the outer blade thickness is not uniform. It has become.

The thickness of the outer blade was determined with a focus on close shaving, that is, it is manufactured to a thickness that is uniform over the entire surface for finishing shaving.

Although not yet widely used, there is a razor with a so-called double ridge outer blade, in which the razor head is structured with two ridges, as shown in Fig. 2.

However, even in this type of razor, the thickness of the two outer blades is uniform, and no consideration is given to the direction of movement of the razor or the advantages of having a double outer blade.

In other words, while it is possible to get a close shave, it is impossible to introduce long hair, resulting in unshaved hair.

Cutting long and curly hair requires a hole with a large area, and if the outer blade is thick enough for a final shave, the inner blade will also scratch the skin, which is the cause of so-called irritation after shaving. This is the result.

Therefore, since it takes the form of a conventional outer blade, there is no unshaved area,
It is difficult to obtain an outer blade that satisfies a close shave, and in order to get a close shave, you have to sacrifice the unshave, and to eliminate the unshave, you have to sacrifice a close shave, and both have to be sacrificed to some extent. had to pay.

The present invention has been developed in view of the above points, and aims to provide an outer blade that can provide a close shave while also eliminating any unshaved parts, and which satisfies both parties.

The present invention will be explained below based on examples.

The present invention was developed by focusing on the direction of movement of the outer blade during use, and is characterized by assigning functions to each razor head with multiple cores.

In other words, as shown in Fig. 2, the outer blade of the electric razor of the present invention is made up of two or more multi-core outer blades in the razor head. Since the radius of the blade is smaller, it makes stronger contact with the skin during shaving, resulting in a closer shave.

In addition, since the outer cutter has multiple cores, the area that comes into contact with the skin is large and the texture is good.

In addition to having the above-mentioned features, the present invention provides an indispensable configuration in that it is possible to assign functions to the protruding outer cutter.

The outer blade of the electric razor according to the present invention stands out from a plurality of peaks, and the thickness of the protruding outer blade is divided into functions for finishing and rough shaving.

A side view of the outer cutter according to the present invention is shown in FIG. 4, and a plan view is shown in FIG. 5.

The razor blade 1a is designed to provide a close shave, and has a thickness of 40 to 60 μm in order to prevent damage to the skin, and the holes are circular, rectangular, hexagonal, etc. with approximately equal aspect ratios. .

In addition, since the rough shaving blade 1b introduces long and curly hair, it must have a relatively large surface area, and must be thick (60 to 120 μm) to prevent damaging the skin, and the hole shape must also be It consists of elongated slit holes having an aspect ratio of approximately 1:2 to 10.

The opening area varies depending on the thickness of the outer blade, but assuming the above thickness, the finishing shaving hole is 0.10 to 0.60 mm2.
The appropriate rough shaving hole is 0.40 to 1.50 mm2.

Since the outer cutter is moved in the direction from Y to Y', the hairs are successively shortened and finished.

That is, long hair and curly hair are cut into short pieces with the rough shaving blade 1b without leaving anything unshaved, and then a close shave is performed with the finishing shaving blade 1a.

In addition, if a three-edge outer blade is used, with a finishing razor blade 1a in the center and rough shaving blades 1b at both ends, as shown in Figures 6 and 7, long hairs will become shorter in sequence, regardless of the direction in which the razor moves. It is something that can be completed.

In addition, in one outer cutter, within the above thickness range,
The thickness may be increased or decreased in the forward direction of X', YY'.

Therefore, if the outer blade of the present invention is used, it is a multi-purpose outer blade, which provides a close shave and excellent skin touch, and since the functions are divided into rough shaving and finishing shaving, it can also cut long hair and curly hair. However, it exhibits an excellent shaving effect that allows you to get a close shave without leaving any unshave.

[Brief explanation of the drawing]

Fig. 1 is an external view of a conventional razor, Fig. 2 is an external view of a razor according to the present invention, Fig. 3 is a view showing the direction of movement of the razor during use, and Fig. 4 is an external view of a double-crested outer blade according to the present invention. A side view, FIG. 5 is a plan view of the outer cutter, and FIG. 6 is a side view of the outer cutter according to the present invention.
A side view of the outer cutter, and FIG. 7 is a plan view of the outer cutter. 1... Outer blade, 1a... Finishing razor blade,
1b...Rough shaving blade, 2...Outer frame, 3.
·····switch.

Claims (1)

[Scope of utility model registration request] In an electric razor where the razor head is integrally composed of two or more ridges, at least two of the plurality of ridges have different outer blade thicknesses, and in this case, the outer blade has a substantially aspect ratio such as circular, rectangular, hexagonal, etc. An outer blade for an electric razor, characterized in that the outer blade having holes with the same diameter is thin, and the outer blade having elongated slit holes is thick.