JP2015073612A - Electric shaver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric shaver in which fear of hurting skin is resolved.SOLUTION: An electric shaver 20 of the present embodiment includes a stationary blade 42 forming a comb-tooth shape and a movable blade 40 which forms a comb-tooth shape, slides on and contacts to the stationary blade 42 and reciprocates in the direction of aligning of comb teeth. In the electric shaver 20, which is provided with a trimmer unit 30 where the blade tip of the stationary blade 42 protrudes more forward than the blade tip of the movable blade 40, the stationary blade 42 is constituted by a first stationary blade 42a and a second stationary blade 42b which form comb-tooth shapes, are provided at opposite sides to each other sandwiching the movable blade 40 and have blade tips protruding more forward than the blade tip of the movable blade 40.

Description

  The present invention relates to an electric razor.

  Some electric razors are equipped with a trimmer unit for preparing sideburns, cutting firewood, and trimming. The trimmer unit can be mounted on the side of the outer blade so that it can be moved up and down in parallel with the side of the main unit. Some of them can be trimmed by protruding upward from the outer blade. Alternatively, the trimmer blade is provided so as to rotate between a position where the trimmer blade is housed on the back surface of the main body and a position where the blade edge protrudes laterally from the back surface of the main body, and the trimmer blade edge protrudes to the side of the main body when in use. And so on that can be trimmed.

In these electric razors, as shown in FIG. 4, the trimmer unit 10 has a comb-tooth-like fixed blade 12 and a comb-tooth shape, is in sliding contact with the fixed blade 12, and reciprocates in the direction in which the comb teeth are arranged. The movable blade 14 is generally provided so that the blade edge of the fixed blade 12 protrudes beyond the blade edge of the movable blade 14 (for example, Patent Document 1).
As described above, in the trimmer unit 10, the fixed blade 12 is provided so that the cutting edge protrudes ahead of the cutting edge of the movable blade 14, so that the movable blade 14 can prevent the skin from being damaged.

JP 2002-273072 A

However, in the conventional electric razor, although the cutting edge of the movable blade 14 is retracted from the cutting edge of the fixed blade 12 in the trimmer unit 10, the movable blade 14 is exposed on one side, so that the movable blade 14 is exposed for some reason. There was a risk of 14 touching the skin and damaging the skin.
Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electric razor that eliminates the risk of damaging the skin in an electric razor having a trimmer unit.

In order to achieve the above object, the present invention comprises the following arrangement.
That is, an electric razor according to the present invention has a fixed blade having a comb-tooth shape, and a movable blade that has a comb-tooth shape and slides in contact with the fixed blade and reciprocates in the direction in which the comb teeth are arranged. In the electric razor comprising a trimmer unit in which the cutting edge of the fixed blade protrudes further than the cutting edge of the movable blade, the fixed blade has a comb-tooth shape and is provided on the opposite side across the movable blade. Consists of a first fixed blade and a second fixed blade that protrude further forward than the cutting edge of the movable blade.

  The first fixed blade and the second fixed blade may have mutually different blade thicknesses, blade lengths, or blade pitches.

  According to the present invention, there is no exposed portion of the movable blade, and the risk of damaging the skin is completely eliminated. In addition, since the hair and wrinkles are cut between the movable blade and both the first fixed blade and the second fixed blade, there is an effect of further improving the sharpness and shaving.

It is the perspective view which looked at the electric razor from the front side. It is the perspective view which looked at the electric razor from the back side. It is explanatory drawing which shows the structure of the fixed blade and movable blade of a trimmer unit. It is explanatory drawing which shows the structure of the fixed blade and movable blade of a trimmer unit in the conventional electric shaver.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a perspective view of the electric razor 20 viewed from the front side, and FIG. 1 is a perspective view of the electric razor 20 viewed from the back side.
The electric razor 20 itself may be of a known mechanism and will be briefly described below.
Reference numeral 22 denotes a main body, which includes an electric motor (not shown) and the like. A head unit 24 is detachably attached to the main body 22.

  A razor portion 26 is provided on the top of the head portion 24. The razor portion 26 in the present embodiment is formed in the reciprocating razor portion 26. The reciprocating razor portion 26 is formed in two, and each of the razor portions 26 is in sliding contact with the outer blades 27, 27 having a semi-cylindrical shape and the outer blades 27, 27 from the inside, and reciprocates along the outer blade 27. It has an inner blade (not shown) that moves and cuts the ridges with the outer blade 27. The reciprocating razor 26 is not limited to two stations.

Inside the main body 22, a conversion mechanism (not shown) that converts the rotational movement of the electric motor into a reciprocating linear motion, and a transmission mechanism (not shown) that transmits the reciprocating linear motion converted by the conversion mechanism to the inner blade. Are provided to drive the inner blade.
Reference numeral 28 denotes a switch provided on the front surface of the main body 22, which turns on / off the driving of the electric motor.

  As shown in FIG. 2, a trimmer unit 30 is provided on the back side of the main body 22. In the trimmer unit 30, the base 33 is pivotally supported at the base of the inner wall upper portion of the recess 32 provided on the back surface of the main body 22. When the trimmer unit 30 is rotated so as to be parallel to the back surface of the main body 22, the trimmer unit 30 is accommodated in the recess 32, and is also positioned at a substantially right angle with respect to the back surface of the main body 22. Thus, the movable blade provided on the trimmer unit 30 is driven at this position.

The trimmer unit 30 is rotated at a substantially right angle to the back surface of the main body 22.
Reference numeral 34 denotes an operation knob that is movably disposed in the recess 32. The operation knob 34 is fixed with a pressing piece 36 formed of an elastic material and bifurcated on the tip side. The two end portions of the pressing piece 36 are pivotally attached to the base body 33 on the front side (right side in FIG. 2) of the pivotal support position of the base body 33 on the inner wall of the concave portion 32 to form a link mechanism. Yes.

By pushing the operation knob 34 upward in FIG. 2, the trimmer unit 30 is rotated to a position where the base body 33 is pushed through the pressing piece 36 and thereby becomes substantially perpendicular to the back surface of the main body 22. Then, the base body 33 is maintained in a state of being pressed against the upper inner wall surface of the recess 32 by the elastic force of the pressing piece 36. The operation knob 34 also serves as a drive switch for the movable blade of the trimmer unit 30, and the movable blade of the trimmer unit 30 is driven.
Further, by moving the operation knob 34 downward, the base 33 of the trimmer unit 30 is rotated downward via the link mechanism, and the trimmer unit 30 is accommodated in the recess 32.

A trimmer blade 38 is attached to the base 33.
The trimmer blade 38 has a comb blade shape and a movable blade 40 having a comb-like blade portion, and is provided on the opposite side of the movable blade 40 so that the blade tip is ahead of the blade tip of the movable blade 40. It has the 1st fixed blade 42a and the 2nd fixed blade 42b which protrude.

The movable blade 40 is in sliding contact with the first solid blade 42a and the second movable blade 42b, and is reciprocated in the direction in which the comb-shaped blades are lined up by the reciprocating drive mechanism. It is supposed to do.
In order to reduce the sliding resistance of the movable blade 40, the first fixed blade 42a and the second fixed blade 42b are bent at the center so that the cross section becomes trapezoidal as shown in FIG. The contact area between and is made small.
The first fixed blade 42a and the second fixed blade 42b can be exactly the same. Thereby, an increase in manufacturing cost can be suppressed.

  A known mechanism can also be used for the reciprocating drive mechanism of the movable blade 40. The reciprocating drive mechanism is provided in the main body 22 and transmits a reciprocating linear motion converted by the converting mechanism (not shown) that converts the rotational motion of the electric motor to a reciprocating linear motion to the movable blade 35. A drive mechanism including a transmission mechanism (not shown) is employed. As the electric motor, an electric motor for driving the inner blade of the razor portion 26 is also used.

The electric razor 20 of the present embodiment is configured as described above.
In the present embodiment, the fixed blade 42 in the trimmer unit 30 is composed of a first fixed blade 42a and a second fixed blade 42b whose blade edge protrudes further forward than the blade edge of the movable blade 40. 42a and 42 are provided on both sides of the movable blade 40 so as to sandwich the movable blade 40 therebetween. As a result, the cutting edge of the movable blade 40 is retracted from the cutting edges of the fixed blades 42a and 42b, and both sides of the movable blade 40 are covered with the fixed blades 42a and 42b. The risk of hurting the skin is completely eliminated.

Moreover, since the hair and wrinkles are cut between the movable blade 40 and the two fixed blades 42a and 42b, there is an advantage that the sharpness and shaving taste are further improved.
Furthermore, since the movable blade 40 does not touch the skin, the movable blade 40 can be made longer than the conventional one, whereby hair and wrinkles can be cut short, and a beautiful finish can be achieved.

In the above embodiment, the first fixed blade 42a and the second fixed blade 42b have the same form, but the present invention is not limited to this.
For example, the first fixed blade 42a and the second fixed blade 42b may have different blade thicknesses, blade lengths, blade pitches, or the like. Thereby, it can be made to use properly for various uses, and usability improves.

  Moreover, the electric shaver in this invention is used by the concept containing an electric clipper. That is, the hair cutting blade in the electric hair clipper is also composed of a comb-shaped fixed blade composed of a comb-shaped first fixed blade and a second fixed blade whose blade tip protrudes further forward than the blade tip of the movable blade. Both the fixed blades are provided on both sides of the movable blade so as to sandwich the movable blade. Thereby, the electric clipper which has the same effect as the above without damaging skin can be provided.

  20 razor, 22 main body, 24 head, 26 razor, 27 outer blade, 30 trimmer unit, 32 recess, 34 operation knob, 36 pressing piece, 38 trimmer blade, 40 movable blade, 42a first fixed blade, 42b Second fixed blade

Claims (4)

A fixed blade having a comb-tooth shape, and a movable blade having a comb-tooth shape, sliding in contact with the fixed blade and reciprocating in the direction in which the comb teeth are arranged, and the blade edge of the fixed blade is the blade edge of the movable blade In the electric razor having a trimmer unit that protrudes further forward,
The fixed blade has a comb-like shape, is provided on opposite sides of the movable blade, and the blade tip includes a first fixed blade and a second fixed blade that protrude forward from the blade tip of the movable blade. An electric razor characterized by that.   The electric razor according to claim 1, wherein the thicknesses of the first fixed blade and the second fixed blade are different from each other.   The electric shaver according to claim 1 or 2, wherein the first fixed blade and the second fixed blade have different blade lengths.   The electric shaver according to any one of claims 1 to 3, wherein the pitches of the first fixed blade and the second fixed blade are different from each other.

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