JPS6124951B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric shaver, particularly to an improvement in the hair introduction hole portion of the outer blade.

Conventionally, this type of rotary electric shaver uses a hair introduction comb to straighten loose hair (long hair) and curly hair and introduce it into the hair introduction hole of the fixed blade, that is, the outer blade, as shown in Figures 1 and 2. It looks like this. 1 is an outer cutter with a cylindrical peripheral wall 10 hanging downward from the outer peripheral edge of the dome-shaped upper surface 9; 2 is an inner cutter;
The outer cutter 1 is attached to an outer cutter frame 3, and the inner cutter 2 is attached to an inner cutter frame 4. The outer cutter frame 3 is detachably attached to the main body housing (not shown) using a threaded cylindrical portion 5, and the inner cutter frame 4 is attached to the output shaft of a motor (not shown) in the main body housing. When driven, the inner cutter 2 rotates while slidingly contacting the inner peripheral surface of the outer cutter 1. Top surface 9 of outer blade 1
A small hair introduction hole 12 is provided in the center of the
In the upper part of the peripheral wall 10, a large number of three-dimensional slit-shaped hair introduction holes 13 that are continuous with the outer peripheral edge of the upper surface 9 are bored laterally, that is, in an annular shape, and the hair introduction holes 13 are arranged in long radial rows in the radial direction. It has been done. 15' is a ring-shaped bristle guide body, and the bristle guide body 15' has a comb 16 formed at its upper end, and a bristle introduction groove 18 corresponding to the bristle introduction hole 13 formed between the comb teeth 16a of the comb 16; It is attached to the outer periphery of the peripheral wall 10 of the outer cutter 1 so that the hair introduction groove 18 and the hair introduction hole 13 of the outer cutter 1 communicate with each other. By the way, in such a conventional example, the outer blade 1 is moved while styling hair using the hair guide body 15'.
When introducing hair into the hair introduction hole 13 and cutting it with the inner blade 2, the shape of the hair introduction hole 13 of the hair guide body 15' and the outer blade 1, or the relative position of the hair guide body 15' and the outer blade 1. If the inner cutter 2 is not appropriate, the skin S may be cut by the inner cutter 2, resulting in strong irritation or poor contact with the skin. That is, the main factors that influence the stimulation are the slit width B ₁ of the hair introduction hole 13 and the blade thickness T in the outer cutter 1, and the groove width b ₁ of the hair introduction groove 18 in the hair guide body 15'.
The length of the comb teeth 16a in the direction of the hair introduction groove, that is, the radial dimension W, and the relative position between the hair guide body 15' and the outer cutter 1 is determined by the height difference, that is, the step ΔH, and the hair introduction hole 13 and the hair introduction groove 18. is the lateral deviation ΔB. Further, a factor related to the contact with the skin is the level difference ΔH between the hair guide body 15' and the outer cutter 1. By the way, in the conventional example, the hair guide body 15' could not adjust the level difference ΔH among the factors that affect stimulation, so depending on the characteristics of the user's skin, the hair guide body 15' could not adjust the level difference ΔH as shown in FIG. There is a problem in that the amount of protrusion 8 of the outer cutter 1 of S into the hair introduction hole 13 becomes larger than necessary, and the skin S may be cut by the inner cutter 2, resulting in strong irritation or poor contact with the skin. Also, since the hair guide body 15' is a fixed, ring-shaped integral piece, the skin S and the hair guide body 15' are separated from each other as shown in FIG.
The problem is that the skin S and the hair guide body 15' are in good contact with each other in areas where the contact pressure is large, but in areas where the contact pressure is small and in the vicinity thereof, the skin S and the hair guide body 15' separate or come into contact, resulting in instability and poor skin contact. It was hot.
In FIG. 4, P is the pressure that the hair guide 15' receives from the skin, X is the area where the contact between the hair guide 15' and the skin S is stable, and Y is the area where there is no contact between the hair guide 15' and the skin S. It shows a stable area.

The present invention has been made in view of the above points, and its purpose is to provide an electric shaver that can adjust the intensity of irritation to the skin and the touch to the skin according to the characteristics of the skin.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments. 6 to 8 show a first embodiment of the present invention. An annular groove 20 is formed in the upper end surface of the outer cutter frame 3. A bristle guide body 15 has a comb 16 at its upper end, and is formed by arranging a plurality of guide bodies 15a in a ring shape, and the lower part of each guide body 15a is fitted into an annular groove 20. Comb teeth 1 are provided on the upper part of the guide body 15a.
A retaining protrusion 6 is formed on the inner surface of the lower part of the guide body 15a in a lateral direction (circumferential direction).
The guide body 1 is engaged with the groove 8 on the inner circumferential wall of the guide body 1.
5a is prevented from coming out of the annular groove 20. 1
7 is an elastic body such as a spring that biases the guide body 15a upward; 19 is an elastic body that biases the guide body 15a upward;
This is a spring body that prevents the outer cutter from swinging in one direction.
A protrusion 21 is provided on one end surface of the guide element body 15a, and a protrusion 21 is provided on the other end surface of the guide element body 15a.
A vertical groove 22 for guiding the device 1 in the vertical direction is recessed. When each guide body 15a is fitted into the annular groove 20, each bristle introduction groove 18 formed between the comb teeth 16a is connected to each bristle introduction hole 12 of the outer cutter 1.
It corresponds to In this way, the hair guide body 15
By moving the guide element 15a up and down, the height difference ΔH can be adjusted so that the amount of protrusion 8 into the hair introduction hole 13 that is optimal for the user's skin can be obtained. can move up and down independently, so that by lowering some of the guide bodies 15a, the hair guide body 15 can smoothly follow the skin, resulting in better contact with the skin. Note that the structure of other parts is the same as that of the conventional example shown in FIG. 1, so a description thereof will be omitted.

FIG. 9 shows a guide body 15a according to a second embodiment of the present invention, which is used in a reciprocating electric shaver in which the inner cutter that slides on the outer cutter is reciprocated, and each guide body 15a has a flat plate shape. The hair guide body 1 is formed by arranging each guide body 15a in a straight line.
5.

10 and 11 show a third embodiment of the invention. The retaining protrusion 6 provided at the lower part of each guide element 15a is fitted into the groove 8 of the annular groove 20, so that the guide element 15a can move laterally along the groove 8. . Adjacent guide bodies 15a are connected by an elastic body 11. Therefore, even if a lateral deviation ΔB occurs between the hair introduction holes 13 and the hair introduction grooves 18 due to variations in the pitch of the hair introduction holes 13 of the outer cutter 1, as shown in FIG. The hair introduction groove 18 of the guide body 15a can be aligned independently with respect to the hair introduction hole 13.
The deviation ΔB between the hair introduction hole 13 and the hair introduction hole 13 can be absorbed, and the intensity of irritation to the skin can be adjusted. Any guide body 15 of the hair guide body 15
A positioning protrusion 23 that engages with the hair introduction hole 13 is formed in a to prevent the entire hair guide body 15 from shifting in the lateral direction. FIG. 12 shows a fourth embodiment of the present invention, and shows the positional relationship between the linear hair guide body 15 and the outer cutter 1 of a reciprocating electric shaver.

FIG. 13 shows a fifth embodiment of the present invention,
The guide body 15a is a thin-walled elastic body 11.
It is connected by . FIG. 14 shows a sixth embodiment of the present invention, in which flat guide bodies 15a used in a reciprocating electric shaver are connected by an elastic body 11 made of a thin-walled molded product.

In the present invention, as described above, the hair guide body is formed by arranging a plurality of guide bodies in a row in the horizontal direction, and each guide body is mounted so as to be movable up and down, so that each guide body is independent from the other. As a result, some of the guide elements are lowered, allowing the hair guide to follow the skin smoothly, even in areas where the contact pressure between the skin and the hair guide is small and in the vicinity. It has the advantage of being a good hit.

[Brief explanation of the drawing]

Fig. 1 is a cutaway partial front view of the conventional example, Fig. 2 is an explanatory view of the same as the above, Fig. 3 is a perspective view of the same as the above, Fig. 4 is an explanatory view of the same as the above, and Fig. 5 is the bristle guide as above. FIG. 6 is a partial front cross-sectional view of the first embodiment of the present invention, FIG. 7 is a perspective view of the same hair guide body, FIG. 8 is a perspective view of the same hair guide body, and FIG. 9
The figure is a perspective view of a guide body according to a second embodiment of the present invention.
FIG. 10 is a partial front cross-sectional view of a third embodiment of the present invention;
FIG. 11 is a plan view of the hair guide body same as above, FIG. 12 is a partial plan view of the fourth embodiment of the present invention, and FIG. 13 is a partial plan view of the hair guide body of the fifth embodiment of the present invention.
FIG. 14 is a partial plan view of a bristle guide body according to a sixth embodiment of the present invention, in which 1 is an outer blade, 13 is a bristle introduction hole,
15 is a hair guide body, and 15a is a guide body.

Claims (1)

[Claims] 1. On the outside of the outer blade in which a large number of hair introduction holes are bored,
A hair guide body that guides the hair is disposed in the hair introduction hole, and this hair guide body is formed by arranging a plurality of guide bodies in a row in the horizontal direction, and each guide body is attached so as to be vertically movable. An electric razor characterized by comprising: 2. The electric shaver according to claim 1, wherein each guide body is made movable in the lateral direction, and adjacent guide bodies are connected to each other by an elastic body. 3. The electric shaver according to claim 1, characterized in that a comb is formed at the upper end of the hair guide body.