JPS5839670Y2 - Rotary electric razor outer blade - Google Patents

Description

[Detailed description of the invention] The present invention relates to a new outer blade pattern of a rotary electric shaver, in which holes that are close to square, holes that are elongated, and even very long slit holes and various types of sink introduction holes are arranged in an orderly manner. The arrangement direction of the holes is a single spiral pattern, and the holes that are close to square can cut the beard shorter and better, while the long holes and very long slit holes can cut long hair and curly hair. It is easy to introduce and can be expected to improve the overall shear rate of the whiskers.

Since the whisker introduction holes are arranged in a spiral shape, the muscles also form a spiral shape, which has various advantages such as increasing the mechanical strength of the outer cutter.

Hereinafter, one embodiment of the present invention will be described based on the drawings.
First, the long holes 2, 2...
Arrange...

A single spiral virtual line 3 starting from Q is formed on its outer periphery.

This imaginary line 3 has whisker introduction holes 4, 4...
becomes the reference line on which the lines are placed, and the intervals PI, P2゜P3. P4...P is formed so that it gradually becomes wider toward the outer periphery.

Further, on the outermost periphery 5, elongated holes 6, 6, . . . of the same length are arranged in a circular shape.

The present invention consists of two long hole groups 2 arranged in a circular shape, inside and outside.
The whisker introduction holes 4, 4 formed between the 6... have a characteristic pattern.

That is, the spiral imaginary line 3 is centered, and the whisker introduction holes 4, 4 arranged radially thereon gradually increase in length b in the radial direction from the center area to the outer peripheral area.
increases, and its width a in the central area is approximately 1:1 with the radius length, and is so wide that it is close to a square hole.
The width of the hole 4'' gradually decreases toward the outer periphery, and becomes very long and narrow at the outermost periphery.

4″...

In this way, it has a unique shape in which the length b gradually increases toward the outer periphery, and the width a gradually decreases.

Therefore, in the center area, it is close to the square holes 4', 4', etc., and then as it moves away from the outer periphery, the long holes 4, 4, etc.
・In addition, there is a very long slit hole 4 in the outer peripheral area.
″.

4″...The outer blade pattern has three different patterns of hair introduction holes arranged in an orderly manner.

Along with this, each sink introduction hole 4.4', 4"...
・Muscle and bone formed by 1. l, 1... is a uniform spiral muscle, and that muscle l.

1... The gap gradually becomes wider.

The arrangement of the whisker introduction holes as described above is the square hole 4' in the center area.

4'...Cut the beard short.

In other words, deep recesses are made, and the other areas and the long holes 4, 4... slit holes 4//, 4//... in the outer peripheral area.
... makes it easy to introduce long hair, and it is possible to shear it with good skin touch.

Therefore, it can be expected to be able to capture various types of hair, including short hair, long hair, and curly hair, and cut it reliably.

Furthermore, since the muscle l has a spiral shape, when the rotating inner cutter and outer cutter come into sliding contact, the tips of the inner blades evenly contact the hole 4 and the muscle l, so only a portion of the cutting edge The phenomenon of wear is eliminated.

In addition, since the blade has spiral muscles and bones, the mechanical strength of the outer cutter is increased compared to the conventional blade which has concentric muscles.

As described above, the outer cutter pattern of the present invention is formed by forming a single spiral muscle so that the spacing between the muscles gradually increases from the center to the outer periphery, and the sink marks are arranged between the muscles in a radial direction. The radial length of the introduction hole gradually increases from the center area to the outer circumference, and conversely, the width gradually narrows from the center to the outer circumference, with the length to width being approximately 1 in the center area. :The square holes close to 1 are arranged in a cluster, and as they move away from the square holes, the long holes are gradually lined up, and as they move towards the outer periphery, very long and narrow slit holes are formed continuously and uniformly. The square holes allow for a close shave by cutting the hair short, and the long holes and even slit holes make it easy to introduce long or curly hair and provide a smooth shave.

Therefore, both long and short hair and curly hair can be introduced and cut very effectively.

In addition, since it is a spiral muscle, the tension of the muscle against the entire outer cutter is mechanically stronger than that of a conventional concentric muscle, and the uneven wear of the conventional inner cutter due to sliding rotation of the inner cutter is eliminated. You can expect it.

In this way, a new outer cutter that is improved over the conventional one can be provided.

[Brief explanation of drawings]

The drawing is a plan view of an outer cutter pattern showing an embodiment of the present invention. l... Spiral musculature, 4.4', 4"...
... Sink introduction hole.

Claims (1)

[Scope of utility model registration request] The long holes are arranged in a circle around the center of the outer blade as a fulcrum, and the subsequent tattoo blade has a single spiral muscle bone that continues from the center toward the outer periphery, with the muscle spacing gradually increasing. The outer blade of the rotary electric shaver is characterized in that the hair introduction holes arranged radially between the muscles gradually increase in radial length and decrease in width from the central area to the outer peripheral area.