JP2011125410A - Electric razor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To permit shaving to be carried out evenly by evenly increasing contact pressure between an outer blade and the skin by applying negative pressure of air between the outer blade and the skin. <P>SOLUTION: A blower is provided in the interior of the housing of the electric razor and is made to cause negative pressure of air inside the outer blade 1 by discharging the air from the sides of the housing. A pressure wall 3 is provided on the outside periphery of the outer blade to retain the negative pressure. When the skin is brought into contact with the top face of the pressure wall, the skin is sucked to the outer blade by the even negative pressure and comes into contact with the outer blade, adapting to the shape of the outer blade. That brings the outer blade into contact with the skin over the entire face and can effectively shave hair. Since pressure bringing the outer cutter into contact with the skin can be controlled by the wind velocity of the blower, the electric razor permits a stable shaving depth to be set by its setting. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an electric shaver with little unshaved residue.

In the conventional electric razor, since the skin is brought into close contact with the outer blade, the outer blade partially adheres to the skin due to the unevenness of the body, and unshaved hair remains.
In addition, the shaving depth is not stable due to the strength of pressing against the skin.

In a rotary or reciprocating electric razor, a blower is provided inside the housing, and air is discharged from the side surface of the housing to generate negative air pressure inside the outer blade.
A pressure wall is provided on the outer periphery of the outer blade for the purpose of maintaining a negative pressure. When skin is brought into contact with the upper surface of the pressure wall, the skin is sucked into the outer blade by a uniform negative pressure, and the shape of the outer blade Adhere closely to. The pressure wall is preferably made of a flexible material so that the pressure wall adheres to the unevenness of the body and does not cause a gap. As a result, the outer blade is in close contact with the skin over the entire surface, and the hair can be efficiently shaved.
Moreover, since the pressure which makes an outer blade and skin contact | adhere is controllable with the wind speed of an air blower, the stable shaving depth can be set by the setting of an electric razor.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a cross-sectional view of the present invention applied to a rotary electric shaver.
FIG. 2 is an exploded perspective view of parts of an electric razor.
As shown in FIG. 1, the outer blade 1 is fixed to the outer blade holder 2. The pressure wall 3 is also fixed to the outer blade holder 2 in the same manner. However, an embodiment in which the function as the pressure wall is intentionally invalidated by removal or movement can be assumed.

The inner blade 4 is fixed to the inner blade holder 5. The inner blade holder 5 is fixed to the inner blade driving motor 6 with a bush 8 interposed therebetween. A fan 10, which is an example of a blower, is fixed to a blower motor 12. The dustproof filter 14 is sandwiched between the inner blade holder 5 and the outer blade holder 2. The outer blade holder 2 is combined with the lower case 15 which is a housing by a screw groove. The inner blade 4, the inner blade holder 5, the inner blade driving motor 6, and the bush 8 are fixed to the lower case 15. The fan 10 and the blower motor 12 are fixed to the lower case 15.

As shown in FIG. 2, the upper case 16 is fixed to the lower case 15. When the fan 10 is rotated by the blower motor 12, air is discharged from the exhaust groove 23 of the upper case 16 and the exhaust groove 22 of the lower case 15. The negative pressure generated at this time sucks the skin from the outer blade 1 through the lower surface ventilation hole 20 and the upper surface ventilation hole 18 of the lower case 15.

It is sectional drawing of the rotary electric shaver incorporating the negative pressure mechanism which is preferable embodiment of this invention. It is the perspective view which decomposed | disassembled the part of the electric razor.

1: Outer blade 2: Outer blade holder 3: Pressure wall 4: Inner blade 5: Inner blade holder 6: Inner blade drive motor 8: Bush 10: Fan 12: Blower motor 14: Dustproof filter 15: Lower case 16 : Upper case 18: Lower case upper surface ventilation hole 20: Lower case lower surface ventilation hole 22: Lower case exhaust groove 23: Upper case exhaust groove

Claims (5)

In a rotary or reciprocating electric razor, a mechanism for suctioning with the negative pressure of air in order to bring the skin into close contact with the outer blade. A mechanism in which a pressure wall is provided on the outer periphery of the outer blade to hold the negative pressure of the air generated inside the outer blade of the electric razor between the skin. A mechanism that generates a negative pressure inside the outer blade by providing a blower inside the electric razor and discharging air to the outside of the electric razor. In order to maintain a negative pressure between the electric razor and the skin, a mechanism provided with a pressure wall that has the flexibility to deform according to the unevenness of the body. Electric razor with a pressure wall that can be removed or moved so that it can be used normally without applying negative pressure.

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