JPS5977882A - Electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

In order to shave the beard very closely, there has conventionally been a device in which a beard pulling piece (reed cutter) is disposed in front of the inner blade in the sliding direction. By the way, even if the edge of the inner cutter becomes sagging due to wear, etc., will it still be curly due to being caught between the outer cutter and the outer cutter? Because it is cut, the cut surface will be a little rough, but it will not significantly affect the cutting quality. However, since the reed cutter has to cut into the beard, the cutting edge of the reed cutter must always be sharp. However, with conventional knife steel, it was difficult to maintain the full effect due to the ``sagging'' of the cutting edge.

Therefore, an object of the present invention is to provide an electric shaver that can shave hair shorter and maintain the effect over a long period of time.

A first embodiment of the invention is shown in FIGS. 1 through 5.

That is, this rotary electric shaver has a beard debris reservoir 3 formed at the end of a main body 2 containing a storage battery (not shown), a switch 1 and a motor (not shown), and a drive IFII in the beard debris reservoir 3. 4ffi stands out.

An inner blade body 5 is attached to this movement shaft 4, and sink cutting blades (inner blades) 7 are passed through support holes 6 formed at three equally spaced locations in the inner blade body 50. A push-up spring (not shown) is installed on the front side of the trough support hole 6 in the direction of rotation A of the whisker cutting blade 7.
F cutter) 8 is passed through and attached to the push-up spring. This hair tension piece 8 is made of zirconia (Zr02)'
t: Contained Vickers hardness Hv = 1000 to 1500
It is made of ceramic that has a good cutting edge, is extremely hard, and has improved brittleness. An outer cutter frame 10 is screwed into the thread groove 9 of the whisker debris storage portion 3, and the inner surface of the outer cutter 12 having a cutter hole 11 attached to the outer cutter frame 10 comes into contact with the cutting edge of the sink cutter blade 7. Note that the whisker tensioning piece 8 is dimensioned so as not to come into contact with the outer cutter 12. 13 is a blade protection cap, and 14 is a charging hook.

When switch 1 is turned on, the motor operates and drive shaft 4
rotates. As a result, the inner cutter body 5 rotates, and the whisker cutting blade 7 and the whisker tensioning piece 8 rotate.

FIG. 3 shows the whole shaving condition 9, and when the outer cutter 12 is brought into contact with the skin P, the beard Q is introduced into the cutter hole 11. The whisker tensioning piece 8 located in front of the sliding direction of the whisker cutting blade 7 first cuts into the blade hole 11.
In order to pass under the blade, hook the sink (l) as shown in the same figure (aJ) and pull the sink Q into the inside of the blade hole 11 as shown in (b) of the same figure.

In this state, the sink cutting blade 7 approaches the root of the beard Q and cuts the sink.

In this way, the beard Qt can be shaved short. In addition, the hair tension piece 8 is made of ceramic, and the blade steel is also highly hard, so it will not sag even after long periods of use, and the ceramic cutting edge has minute irregularities 15 as shown in Figure 5. Therefore, the unevenness 15 easily bites into the whiskers Q and is easy to hook, resulting in a high tensile effect.

Note that the whisker tensioning piece 8 may be in contact with the outer cutter 12.

A second embodiment of the invention is shown in FIGS. 6 and 7.

That is, it is applied to a reciprocating electric shaver, and hair pulling pieces (lead cutters) 8' are provided on both sides of each hair cutting blade (main blade) 7' of the inner blade body 5'. In addition, 1
2' is a switch, 2' is a main body, 3' is a beard dust storage part, 4' is a reciprocating drive frame, 9' is an outer cutter frame mounting flexible part, 10' is an outer cutter frame, and 12' is an outer cutter exit. Its operation is similar to the ml embodiment.

As described above, the electric shaver of the present invention has beard tensioning pieces, and since the beard tensioning pieces are made of ceramic, the effect of shaving short beards can be maintained for a long period of time, and the pulling efficiency is It has the effect of having a high

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the first embodiment of the present invention, Fig. 2 is an enlarged perspective view of the inner cutter body, Fig. 3 is a perspective view of the shaving operation state, and Fig. 4 is a portion of the hair tensioning piece. FIG. 6 is an exploded perspective view of the second embodiment, and FIG. 7 is a perspective view of the inner cutter body. 7.7'...Sink cutting blade, 8,8'...Hair tension piece,
11...Blade hole, 12, 12'...Outer blade 14 Fig. 1 Fig. 2 (a) (b) Fig. 1 Fig. 4 Fig. 5

Claims (2)

[Claims] (1) An outer blade with a cutting hole provided, a sink cutting blade disposed inside the outer blade and slidingly contacting the inner surface of the outer blade, and a sink cutting blade disposed in front of the sliding direction of the sink cutting blade. Electric razor with ceramic beard tensioner. (2) The whisker tensioning piece is not in contact with the outer cutter, and a plurality of sets of the sinker cutting blade and the whisker tensioning piece are arranged inside the outer cutter. No. (1)
Electric shaver as described in section.