JPS6230789B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the structure of an electric razor.

Conventionally, as shown in Figure 1, electric razors generally have a fixed shape for the beard introduction hole A of the outer blade B.
In addition, since the outer cutter (B), which has the hair introduction hole (A), is fixed to the outer cutter frame (C, D) and equipped on the body, the inner cutter (T) is connected to the inner cutter base so that the inner cutter (T) is in sliding contact with the inner surface of the outer cutter (B). is engaged with the motor shaft.

However, with such conventional electric razors, as shown in Figure 2, when soft skin is pressed against the outer blade B, the large diameter hair introduction hole A causes a large amount of skin to protrude into the inside of the outer blade B. There was a problem in that the protrusion would scrape the surface, causing damage, and if it was pressed against hard skin, the amount of protrusion of the skin was small and the beard could not be cut at the root, making it impossible to get a close shave.

The present invention has been made in view of these conventional problems, and it is an object of the present invention to provide an electric razor that is compatible with both soft and hard skin and provides a close shave without causing any damage.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 is a partially cutaway sectional view of an embodiment of the electric razor of the present invention, FIG. 4 is a perspective view of the same, and FIG. 5 is a partially cutaway perspective view of the same. In the figure, 1 is a hair introduction hole, 2 is a spherical shell-shaped outer cutter fixed to the main body 8, and 3 is an inner outer cutter, which has approximately the same shape as the outer cutter 2 and is inside the outer cutter 2. The two are arranged so that their centers coincide with each other, and the whisker introduction holes 1 are overlapped so that they generally coincide with each other, and are rotatably provided by a rotation mechanism 19, which will be described later. 4 is the outer frame,
5 is an inner frame, and 6 is an intermediate frame. Main body 8
A middle frame 6 is connected to the inner frame 6, a motor 9 is built in the inner space, and the motor 9 is connected to an inner cutter stand 11 via a shaft 10. The inner cutter base 11 is equipped with an inner cutter 12.
The blade surfaces are in sliding contact with the inner surfaces of the inner and outer cutters 3. An example of the rotation mechanism 19 is shown below. That is, an adjustment screw 13 provided on the main body 8, a substantially Y-shaped cam lever 14, and a cam lever shaft 2 connected to the center of the cam lever 14.
Cam gear 1 that meshes with 0 and motor shaft gear 18
7 and an intermittent cam 16 that can be integrated with a cam gear 17, and the contact piece 14a of the cam lever 14 and the intermittent cam 16 are in contact with each other.

In the above razor, the cam gear 17 is rotated by the rotation of the motor 9, that is, the shaft 10, and the cam lever 14, which comes into contact with the intermittent cam 16, swings in accordance with the rotation of the cam gear 17, so that the gear 15 can be reciprocated. The operation of rotating slightly and returning to the original position is repeated intermittently. Therefore, the matching state of the hair introduction holes 1 can be adjusted intermittently.

To adjust the misalignment of the beard introduction hole 1, use the adjustment screw 1.
Perform it manually according to step 3.

FIGS. 6 and 7 are cross-sectional views showing the misalignment of the whisker introduction holes. If there is a slight deviation (by b ₂ ) as shown in Figure 7, the amount of skin protruding downward can be reduced,
The stimulation caused by the inner blade 12 is reduced, and the degree of shaving becomes shallower.

As described above, the electric razor of the present invention includes a spherical shell-shaped outer cutter having a beard introduction hole and fixed to the main body, and an inner outer cutter having a beard introduction hole and having substantially the same shape as the outer cutter. The inner and outer cutters are stacked so that their centers coincide with the inner side of the outer cutter and the respective whisker introduction holes are roughly aligned, and the inner and outer cutters are rotated intermittently and slightly relative to each other during shaving time. Since the matching condition of the beard introduction hole is adjusted by setting the beard introduction hole, the action of instantaneously expanding the beard introduction hole is periodically repeated at regular intervals, and the rate of skin introduction can be improved. It can shorten shaving time.
Further, the size of the beard introduction hole can be changed according to the skin characteristics of the individual user, and there is an effect that shaving can be performed while optimizing the contradictory factors of closeness and stimulation.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional electric razor, Fig. 2 is a sectional view of the same as above in a shaving state, Fig. 3 is a partially cutaway sectional view of an embodiment of the present invention, and Fig. 4 is a perspective view of the same as above. , FIG. 5 is a partially cutaway perspective view of the same as above, and FIGS. 6 and 7 are cross-sectional views showing the misalignment of the whisker introduction holes. 1... Beard introduction hole, 2... Outer outer cutter, 3... Inner outer cutter, 19... Rotating mechanism.

Claims (1)

[Claims] 1. A spherical shell-shaped outer cutter having a whisker introduction hole and fixed to the main body, and an inner outer cutter having a whisker introduction hole and having substantially the same shape as the outer cutter, with their centers aligned with the inside of the outer cutter. An electric razor characterized in that the respective beard introduction holes are overlapped so that they generally coincide with each other, and a rotating mechanism is provided to rotate the inner and outer cutters intermittently and slightly relative to each other during shaving time.