Electric shaver

Abstract

PROBLEM TO BE SOLVED: To provide an electric razor which can follow change of skin surface by carrying out tilting and displacement of a cutting blade unit with smaller skin reaction force, can nap mustaches by lengthening the skin surface with the tilting cutting blade unit and can lightly perform mustache cutting as a whole.SOLUTION: First and second cutting blade units 11-12 are provided is formed before or after a razor head 2. The first cutting blade unit 11 includes: an outer edge 23; an inner blade 24; and a tilting frame 25. Rotative power of a motor 15 is transmitted to the inner blade 24 through a gear transmission structure. The inner blade 24 is arranged to either back and forth of an upper half part of a sun gear 60, and rotative driving is carried out by the sun gear 60. The tilting frame 25 is pivotted around an axis in agreement with the axis of the sun gear 60, and is made tiltable. A chopping blade unit 11 is carried out moving energization toward a standby position with a reset spring 26. The skin surface between both chopping blade units 11, 12 is pulled and napped by tilting operation of the first cutting blade unit 11.

Description

technical field [0001] The present invention relates to a rotary electric shaver provided with a cutting blade capable of swinging and tilting displacement around one axis. Background technique [0002] Among rotary electric shavers, it is known, for example, in Patent Document 1 (Japanese Patent Laying-Open No. Hei 09-038351 (paragraph 0031, Figure 11 )) There is an electric shaver in which the cutting blade is tilted and displaced while swinging around an axis. Wherein, the rotational power of the motor is transmitted to a pair of front and rear inner blades arranged on the shaver head through a gear transmission structure. The shaver head is supported so that the central axis of the terminal gear of the gear transmission structure can be used as the swing center to swing the head back and forth, and can follow the changes of the skin surface to make the front and rear cutting blades move obliquely. In addition, the motor and the shaver head are integrally supported by a...

AI Technical Summary

Problems solved by technology

However, since the whole shaving head is rocked back and forth, the shaving head cannot be tilted unless a certain amount of reaction force from the skin surface (hereinafter referred to as skin reaction force) is applied to the cutting blade. Movement displacement, excessive contact with the skin when shaving, and the oblique movement of the cutting knife when it follows the changes in the skin surface tends to become sluggish

[0005] In addition, in the electric shaver of Patent Document 2, since one side end of the inner blade is supported by a bearing elastically supported freely movable up and down, and the other side end is supported by two friction rollers, it is difficult to make the bearing and the two friction rollers support each other. The friction roller falls evenly, and sometimes the outer blade and the inner blade cannot be tightly fitted

Therefore, when shaving while tilting, the cutting performance of the blade tends to decrease.

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