JPS6058989B2 - electric razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric shaver, and more particularly to an electric shaver equipped with a shaving unit.

In conventional electric shavers of this type, it is common to operate a lever or the like to selectively slide the shaving unit into an operating position or a storage position.

As a result, the sharpening unit becomes large in size, and the space within the case for sliding it also becomes large, resulting in the drawback that the amount of protrusion of the cutting edge from the case cannot be increased very much. In addition, recently, the edge-sliding unit is rotatably supported using the longitudinal side as a fulcrum, and handles are arranged in the horizontal direction of this edge-sliding unit and directly rotate the axis of the edge-sliding unit. There has also been proposed a device in which the handle is manually operated to rotate the sliding unit to the operating position or the storage position (see Japanese Patent Laid-Open Publication No. 131/1983).

According to this, the space required inside the case to install the sharpening unit is small, and the amount of protrusion of the cutting edge from the case can be set large regardless of the space inside the case. Not only is it dangerous to touch the blade tip during operation, but there is also the risk of hair particles adhering to your hands and the blade tip rusting, and the horizontal length of the razor bristles is limited. Since the space for installing the handle was narrow and the handle could not be made larger, it was difficult to apply finger pressure and it was difficult to operate. Therefore, in the present invention, the upper part of the main body is actuated, the lower part is used as a grip part, and the above-mentioned actuating part side is provided with a cutting unit having blades for scraping arranged at one end. A storage position in which the blade is stored along the surface and the cutting blade faces toward the grip;
The edge sliding unit is pivotally supported using the longitudinal side as a fulcrum so that it can rotate freely between a protruding position that stands up almost perpendicularly to the main body, and the edge A finger hook for rotating the unit is arranged so that it can be slid vertically below the tip of the blade in the above-mentioned edge storage position of the main body, and a By creating a gap between the finger rest and the finger rest, the edge unit and the finger rest can be effectively arranged relative to the main body shape, and the finger rest can be made sufficiently large for easy operation. To provide an electric shaver with high operability that reliably prevents fingers from touching the cutting edge when opening and closing.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 3. The razor main body 1 has an upper part as an operating part 1a, a lower part as a grip part 1b, and an upper front surface of the operating part 1a. The shaving head 2 is equipped with a rotary shaving head 2, and the shaving unit 3 is provided at the center of the back of the operating part 1a. A drive lever 8 is attached to this fixed blade 5 by a compression spring 6.
is constructed by pressing a movable blade 7 integrally formed with the movable blade 7,
A fulcrum pin 9 protruding from the outer side wall of the sharpening blade support 4
is rotatably supported relative to the main body 1 by fitting into a fulcrum hole (not shown) bored in the periphery of the opening 11 formed in the actuating portion 1a.

That is, the sharpening unit 3 is stored along the surface of the main body 1, with the blades 5 and 7 facing toward the grip portion 1b, and the sharpening unit 3 stands up almost perpendicular to the main body 1. It is pivoted to the main body 1 with the longitudinal side of the edge unit 3 as a fulcrum so as to be rotatable between the protruding position and the protruding position.

On the inner wall of the gripping portion 1b directly below the edge unit 3,
A switching sliding plate 13 is mounted so as to be slidable in the vertical direction. This switching sliding plate 13 is a poria. It is made of a molded product of synthetic resin such as setal, and has a pair of elastic arms 14 integrally extending from both upper ends thereof, each having claws 15, and the claws 15 of the elastic arms 14 having sharp edges. This is elastically pressed into the notches 16 formed in the rear portions of both side walls of the support body 4! It is engaged like that. Further, a convex portion is provided on the outer surface of the switching sliding plate 13 to serve as a finger hook portion 13a, and the fitting hole 1
2 is exposed below the edge unit 3 on the outside of the main body 1, and by sliding this finger hook 13a up and down with a finger from the outside, the switching sliding plate 13 can be moved up and down. , the offset unit 3 is rotated via the elastic arm portion 14. Here, in other words, between the cutting edge portions of the blades 5 and 7 and the finger hook portion 13a at the edge storage position, there is a gap between the lower end 11a of the opening 11 and the upper end 1 of the fitting hole 12.
2a, a sufficient gap X is formed between the blades 13a and 2a, so that during the edge rotation operation, the finger hook 13a may be erroneously moved up or down during the rotation trajectory of the blades 5, 7 of the edge rotation unit 3. I try not to get my fingers in it.

In the figure, 17 is a drive motor, 18 is an eccentric cam, and 19 is a storage battery. In the electric shaver configured in this way, when the finger hook 13a is in the upwardly pressed position as shown in FIG. At a position below the rotational fulcrum of the sledding unit 3, the rear part of the sledding blade support 4 is pressed by the elastic force of the elastic arm 14, and the upper surface of the sledding unit 3 is pushed into the opening of the actuating part 1a. 11 to firmly hold the sharpening unit 3 in an operating position where its cutting edge protrudes from the razor body 1 without wobbling.

At this time, the drive lever 8 of the movable blade 7 is connected to the eccentric cam 18.
It is in a position to engage with. Therefore, by driving the motor 17, the movable blade 7 can be reciprocated and a sharpening action can be performed. Now, when the finger hook part 13a is pushed upward, as shown in FIG. The unit 3 rotates clockwise about the fulcrum pin 9 and is housed in the operating portion 1a.
In this storage position, the claw part 15 is above the fulcrum pin 9 and presses the rear part of the edge-sliding blade support 4 by the elastic force of the elastic arm 14, so that the edge-sliding unit 3 is ,
The cutting edge part is pressed against the lower edge of the opening 11 of the actuating part 1a, and the cutting edge part faces toward the grip part 1b and is firmly held without wobbling. At this time, the engagement between the drive lever 8 of the movable blade 7 and the eccentric cam 18 is released. Further, when the finger hook portion 13a is pushed down, the edge unit 3 is rotated counterclockwise in the opposite operation to the above-mentioned pushing up.
It is again held in the operating position shown in FIG. Here, the finger rest part 13a, which is disposed directly below the cutting unit 3 so as to be vertically slidable, can be formed sufficiently large in the horizontal direction or in the vertical direction by utilizing the general shape of a razor that is long in the vertical direction. In addition to being easy to use, the presence of the gap X can reliably prevent contact between the sharp edge of the blade and fingers.

In the above embodiment, in order to elastically press the rear part of the edge cutting unit 3, a notch 16 is provided at the rear part of the edge cutting blade support 4, and the claw part 15 of the elastic arm part 14 is engaged with this. However, an engagement pin is provided protruding from the rear of the edge cutting blade support 4, and an engagement hole formed at the tip of the elastic arm portion 14 is loosely fitted into this pin. The rear part of the sled unit 3 can also be pressed by the elastic force of the elastic arm part 14.

As described above, according to the present invention, it is possible to provide an electric shaver in which the operating finger does not hit the sharp cutting edge when the sharp cutting unit is rotated, and the sharp cutting operation is easy to perform.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an electric shaver showing an embodiment of the present invention, Fig. 2 is a vertical sectional side view of the same main part, and Fig. 3 shows the features of the electric shaver shown in Figs. 1 and 2. FIG. 3 is an exploded perspective view of the switching unit and the switching sliding plate. 1... Main body, 1a... Operating part, 1b... Gripping part,
3...'' edge unit, 5... fixed blade, 7...
- Movable blade, 13... switching sliding plate, 13a... finger rest, X... gap.

Claims (1)

[Claims] 1 The upper part of the main body 1 is the actuating part 1a, and the lower part is the gripping part 1b.
and a sharpening blade 5 at one end on the side of the actuating part 1a,
The edge cutting unit 3 in which the edge cutting units 7 are arranged is stored in a storage position where the edge cutting unit 3 is stored along the surface of the main body 1 and the edge cutting blades 5 and 7 face toward the grip part 1b, and The sliding unit 3 is pivotally supported with the longitudinal side thereof as a fulcrum so that the sliding unit 3 can freely rotate between a protruding position that stands up substantially perpendicularly to the main body 1, and A finger hook 13a for rotating the sliding unit 3 is disposed below the blade tips of the blades 5 and 7 in the above-mentioned edge storage position of the main body 1 so as to be slidable in the vertical direction. An electric shaver characterized in that a gap X is provided between the cutting edge portions of the blades 5 and 7 and the finger hook portion 13a in the stored position.