JPS6039391B2 - electric razor - Google Patents

Description

[Detailed description of the invention] This invention relates to an electric shaver.

Electric razors with comb-shaped blades may damage the skin by pressing the blades strongly against the skin when operating the electric shaver. There was one set up nearby. However, because of the comb A, the appropriate angle of the blade relative to the skin C is limited, and the second
The condition shown in figure a is the most comfortable and allows for short swerving, and the condition shown in figure b,
In the case of c, the shaver is short and does not deviate, so it has the disadvantage that the shaving time is longer. Accordingly, an object of the present invention is to provide an electric shaver that can shorten the shaving time by easing restrictions on the operating angle of the device and allowing short shaving without damaging the skin.

A first embodiment of the invention is shown in FIGS. 3 to 8.

That is, this electric shaver has a motor 2 and a battery built into a main body 1 which also serves as a grip, a drive rod 4 and a joint 5 are attached to a motor shaft 3, a holder 6 is connected to the main body 1, and a holder 6 is connected to the holder 6. The hawk-centered joint 7 is then connected to the joint 5. An eccentric shaft 8 with a roller is connected to the eccentric joint 7 and engages with one end of a swing drive rod 9. A blade portion 13 consisting of a wedge-shaped fixed blade 10, a movable blade 11, and a push-up spring 12 is provided on the blade head of the holder 6. is engaged with the other end. 15 is a cover, 16 is a switch knob, 17 is a dustproof plate, and 9a is a fulcrum bottle.

Now, the cover 15 forms extending pieces 18 on both sides of the tip of the blade part 13 from the holder 6, and the outer surface of the extending pieces 18 corresponds to the sliding surface 19 of the movable blade 11 and the fixed blade 10 (see FIG. ), and a support shaft 20 is formed on the support shaft 20, and a skin contact member 2 is attached to this support shaft 20.
1 is supported.

The skin contact member 21 has a rectangular frame shape made of plastic, and has a comb 23 formed on one surface of the skin contact portions 22a and 22b on both sides, and the connecting pieces 24 at both ends are arranged in the longitudinal direction of the skin contact member 21 with a slope thickness. The center part is made elastically curved outward, and a tongue piece 25 is formed in the center part, and a shaft hole 26 is bored therein. When the connecting piece 24 of the skin pad 21 is expanded outward and the hole 26 is glued to the support shaft 20', the upper comb 23 (skin pad 22a) is positioned on the movable blade 11, and the lower comb 23 (skin contact part 22b) is located on the fixed blade 10 legs and can rotate around the support shaft 20. When the switch knob 16 is operated to activate the motor 2, the motor shaft 3 rotates, the drive rod 4, the joint 5, and the eccentric joint 7 rotate, the swing drive rod 9 swings, and the movable blade 11 The fixed blade 10 is pressed against the fixed blade 10 by the push-up spring 12.
It moves back and forth.

Figures 6 to 8 show the state of use, and Figure 6 shows the blade part 1.
3 is applied to the skin C at a right angle, and FIGS. 7 and 8 are cases in which the blade part 13 is applied to the skin C at an angle.

In either case, the pressing portions 22a, 22 of the skin contact member 21
Since b contacts the skin C, even if the electric shaver is strongly pressed against the skin C, the stopper action of the skin contact member 21 prevents the tip of the blade part 13 from biting into the skin C and causing damage. In addition, the support shaft 20 is the center of the wrapping of the skin contact member 21.
is located near the sliding surface at the tip of the blade portion 13, so the degree of contact of the blade portion 13 with the skin C in the biting direction does not change in any of the above usage modes. Therefore, the usable angle 8 (FIG. 7) at which hair can be shaved short is wider than before, and the shaving time can be shortened because there are fewer cases where hair is shaved short. A second embodiment of the invention is shown in FIGS. 9 to 13.

That is, in this electric shaver, three shaft holes 26a to 26c are formed in a tongue piece 25' corresponding to the tongue piece 25 so as to communicate continuously in a direction perpendicular to the plane of the skin contact member 21', and elastic A provision hole 27 is formed. The rest is the same as the first embodiment. With this configuration, the shaft holes 26a to 26c formed in the support shaft 20 allow the skin-covering material 21' to move forward and backward relative to the cutting edge of the blade portion 13. For example, FIG. 12 shows a case where the support shaft 20 is positioned in the hole 26c, and the skin contact member 21' protrudes from the blade portion 13. In this case, it is convenient for shaving soft skin areas such as the knees (armpits). In addition, Fig. 13 shows the support shaft 2 in the Fuji hole 26a.
0, the skin contact portion 21' is retracted from the cutting edge of the blade portion 13. In this case, it is suitable for areas where the skin C is relatively hard, such as arms and legs. Furthermore, depending on the pressing force of the person operating the electric shaver, the shaft hole 26a
~26c can be selected. Furthermore, the holes 26a to 26c can be easily changed by simply pushing in the protruding or retracting direction, since the hole edges are elastically deformed by the holes 27. In addition to the comb, the pressing part may be a cylindrical brush.

As described above, the electric shaver of the present invention includes a blade portion consisting of a comb-shaped fixed blade and a movable blade, a pair of skin contact portions arranged in parallel along both outer sides of this blade portion, and a connection between both ends of the blade portion. and a skin contact member that is integrally connected to each other at the connecting part and has a rotating shaft part directly outward from both ends of the tip part of the blade part in the connecting part, so that the comb-shaped blade part can be moved arbitrarily against the skin. Even if the skin contact part is pressed at an angle, it will not spread out because it is integrally connected by the connecting part. Therefore, the skin contact part will not injure the skin, and the center of rotation of the skin contact part will be centered at the tip of the blade part. Since it is located near the sliding surface of the fixed blade and the movable blade, the degree of contact of the blade against the skin does not change for any angle of the comb-shaped blade, so This has the effect of increasing the angle at which a shorter shave can be made and shortening the shaving time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the conventional method, FIG. 2 is a sectional view of the shaved state, FIG. 3 is a perspective view of the main part of the first embodiment of the present invention, and FIG.
The figure is a sectional view, FIG. 5 is a partially exploded perspective view, FIGS. 6 to 8 are sectional views in use, FIG. 9 is a perspective view of the second embodiment, and FIG. 10 is an exploded perspective view thereof. , FIG. 11 is a partially enlarged perspective view of the skin pad material, and FIGS. 12 and 13 are cross-sectional views of the material in use. 10...Fixed blade, 11...Movable blade, 1
3...Blade part, 19...Sliding surface, 20...
...Spindle, 21, 21'...Skin contact member, 22a, 2
2b...Skin contact part, 24...Connection piece,
26, 26a to 26c... shaft hole. Figure 1 Figure 2 Figure 6 Figure 7 Figure 8 Figure 3 Figure 4 Figure 5 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13

Claims (1)

[Scope of Claims] 1. A blade part consisting of a comb-shaped fixed blade and a movable blade, and a pair of skin contact parts arranged in parallel along both outer sides of this blade part, and integrally connected to each other at connecting parts at both ends. and a skin contact member provided with rotating shaft portions on outer oriented layers at both ends of the distal end portion of the blade portion in the connecting portion. 2. The connecting portion can be elastically curved in the reciprocating direction of the blade portion,
The electric shaver according to claim 1, wherein the rotating shaft portion is formed by a shaft hole and is elastically fitted to shafts provided on both sides of the blade portion. 3. The electric shaver according to claim 1, wherein the skin contact member is adjustable in forward and backward directions in the direction of the cutting edge of the blade portion.