JP2003190675A - Razor for haircut - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a razor for a haircut capable of stably supplying hairs to the edge of the razor exposed at the time of cutting and moreover adjusting the combing amount of hairs, thereby performing a well-balanced haircut. <P>SOLUTION: The razor for a haircut comprises a blade edge intermittently covered with a plurality of convex pieces to be alternately exposed and covered. The blade edge comprises grooves having bottom portions positioned lower than and parallel to the blade edge between the pairs of convex pieces for adjusting the combing amount of hairs. The pairs of convex pieces have the same semicircular shape at the portions thereof projecting from the blade edge. When the razor for a haircut is moved in a direction intersecting with hairs at the blade edge thereof at the time of cutting hairs, the hairs are branched by the apexes of the semicircular convex pieces to be divided into two, that is, toward the exposed blade edge side and groove side. As a result, the hairs guided along the peripheries of the convex pieces are eventually moved to the exposed blade edges and grooves so as to adjust the amount of hairs supplied to the exposed blade edges. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to improvement of a razor for hair cutting.

[0002]

2. Description of the Related Art Conventionally, a razor for cutting hair, which partially cuts hair, is provided with protruding pieces called comb teeth along the blade edge and is covered with the exposed blade edge at regular intervals by intermittent protruding pieces. And a blade edge. Razor for haircut,
Since the basics are partial cuts, the major point is how to prepare hair that gives a balanced and natural feeling overall. For this reason, for example, paying attention to the combing function of the hair of the razor for haircut, a razor for haircut for adjusting the combing amount of the hair has been developed. As conventional examples, JP-A-54-72155 and JP-A-10-24 are available.
No. 9075, JP-A-2000-61175, Shoukai Sho 55
A razor for hair cutting disclosed in, for example, No. 86672. This is to adjust the amount of hair combing at the hair cut and groove, but the side of the convex piece is almost perpendicular to the exposed blade edge, and the hair moves from the tip of the convex piece to the blade edge at the time of cutting. Since it moves immediately (that is, almost at the same time), it is a negative factor in making a balanced cut.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a razor for a haircut, which can stably supply hair to the exposed edge of the blade during cutting to achieve a balanced cut. Further, it aims to provide a razor for hair cutting, in which the amount of hair combing can be adjusted to achieve a balanced cut.

[0004]

[Means for Solving the Problems] In the razor for haircut based on partial cutting, as described above,
It is important to condition the hair to give it a balanced and natural feel. The basic idea of the present invention corresponding to this problem is to adjust the amount of hair cut and the amount of combing, to prevent a temporary or sudden increase or decrease in the amount of cut, and to harmonize the amount of cut with the amount of combing of hair. The balance is to finish a well-balanced hair.

That is, according to the present invention, a plurality of projecting pieces intermittently cover the blade edge, and alternately provide exposed blade edges and coated blade edges. In a razor for haircut having a parallel bottom located below and a groove for adjusting the combing amount of hair, a pair of convex pieces has a semicircular shape in which the portion protruding from the blade edge is the same shape, and the hair cut When moving the blade in the direction in which the blade edge crosses the hair, the hair is divided into two parts, the apex of the semicircular convex piece as a branch point, to the exposed blade edge side and groove side, and is guided to the peripheral edge of the convex piece. The hair is moved to the exposed blade edge and the groove portion with time, and the hair supplied to the exposed blade edge is adjusted.

When the hair-cutting razor is moved in the direction in which the blade edge intersects the hair when the hair is cut, the hair is branched to the exposed blade edge side and groove side with the apex of the semicircular convex piece as a branch point. The hair thus bisected is guided by the peripheral edge of the semicircular convex piece and moves to the adjacent exposed blade edge and groove. Since the protruding portions of the pair of convex pieces have the same semicircular shape from the blade edge, at least the hair contacting the convex pieces does not instantly move to the exposed blade edge and groove. In this case, the blade is moved to the blade edge and the groove portion with time, that is, with a slight time shift. As a result, a stable amount of hair moves on average from the convex piece to the exposed blade edge, and it becomes possible to cut the hair in a balanced manner at the exposed blade edge. In order to evenly divide the hair and supply it to the blade edge stably, it is effective that the protruding portion from the blade edge has a semicircular shape with the same shape. In addition, hereinafter, the "same circular shape" allows a design difference.

Further, a semicircular convex piece, a cut portion having a space A provided on both sides of the convex piece and a groove portion having a space B for determining a carding capacity are provided, and the space A of the cut portion is provided.
Is larger than the space B of the groove, and when the hair in the space B of the groove exceeds the combing capacity when the hair is cut, a part of the hair near the apex of the convex piece is exposed from the groove side beyond the apex. It is possible to move to the blade edge side and adjust the carding capacity of the groove.

The exposed blade edge normally cuts the hair that contacts the blade edge and removes a certain amount of hair. In the present invention, since a certain amount of other hair is supplied from the convex piece to the exposed blade edge, there is no great change in the amount of hair in the space A of the cut portion. Adjusting the amount of hair in the space A is an important premise for achieving a balanced cut.

The length of the exposed blade edge is related to the amount of hair cut. That is, when the length of the exposed blade edge is large, the amount of cutting increases. Also, reducing the length of the exposed blade edge will reduce the amount of cutting, but if the amount of cutting is too small, it will not only require repeated cutting work, but also a well-balanced hair finish. It will be difficult. In the present invention, a certain amount of hair is further supplied from the convex piece to the exposed blade edge, and the length of the exposed blade edge is at least twice the radius of the semi-circular convex piece in relation to the supply amount. And within 5 times. This makes it possible to sufficiently adjust the amount of hair in the space A of the cut portion, that is, to prevent the hair from temporarily or suddenly increasing or decreasing in the space A, and to achieve a balanced cut. However, in order to keep the length of the blade edge as small as possible and to process the amount of supply from the convex piece, the length of the exposed blade edge should be at least twice the radius of the semicircular convex piece and within three times. You can also

When the hair accommodated in the groove exceeds the combing capacity of the groove at the time of cutting the hair, a part of the unacceptable hair near the apex of the semicircular convex piece has a vertex. Go over and move from the groove side to the exposed blade edge side,
Adjust the carding capacity. That is, in haircut,
It is important to adjust not only the amount of hair cut but also the amount of hair combed. The combing capacity is determined by the space B of the groove, and the hair is usually combed within the range of the combing capacity of the groove. However, when the hair exceeding the combing capacity is supplied to the space B, the hair that cannot be accommodated in the space B cannot stay in the groove portion, and a part of the hair easily moves to the exposed blade edge side. . That is, since the convex piece (protruding portion from the blade edge) is semicircular, the apex of the convex piece and the part of the hair in the vicinity crosses the apex as if it overflows and the blade edge side exposed from the groove side. Move to. Even when hair exceeding the combing capacity is supplied to the space B in this way, the combing capacity (maximum amount) of the groove portion can be adjusted to prepare hair with a good balance as a whole.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the accompanying drawings. The blade body 2 of the razor 1 for haircut has the blade edge 3 intermittently covered by a convex piece 5 projecting from the blade edge 3, and alternately has an exposed blade edge 3a and a coated blade edge 3b. Further, a groove portion 6 is formed between the pair of convex pieces 5, 5 to limit the amount of combing (maximum amount) of hair during cutting. The groove portion 6 has a parallel bottom portion 7 located below the blade edge 3,
The hair 9 does not come into contact with the blade edge 3. Bottom 7
Is not particularly limited as long as it is located below the blade edge 3.
However, the position is related to the carding capacity of the groove 6 (space B of the groove 6). Therefore, in order to increase the carding capacity, as shown in the figure, the bottom portion 7 can hold down the length thereof,
It is desirable that the hair is positioned slightly below the edge 3 so that the hair does not contact the edge 3.

The pair of protrusions 5, 5 are semi-circular with the same shape except for the ones 30 at both ends, which project from the blade edge 3, and the pair of protrusions 5 arranged on both sides of the groove 6 are sandwiched therebetween. 5 are symmetrically arranged on the intermediate line X-X of both. Therefore, when the hair cutting razor 1 is moved in the direction in which the blade edge 3 intersects with the hair 9 to cut the hair 9, the hair 9 contacting the peripheral edge 10 of the protruding piece 5 branches off from the apex 11 of the semicircular protruding piece. And is divided into two parts, the exposed blade edge 3a side and the groove portion 6 side,
As a result, the branched hairs 9a and 9b move to the adjacent exposed blade edge 3 and groove portion 6, respectively. Since the protruding piece 5 has a semicircular portion protruding from the blade edge 3, the branched hair 9
The a and 9b are guided to the peripheral edge 10 and move to the blade edge side along the arcuate peripheral edge 10. Here, "perimeter 1
"Move along 0" includes not only the hair 9a that moves while contacting the peripheral edge 10 but also the one that moves non-linearly while being affected by the arc-shaped peripheral edge 10. Hair 9
Moves to the blade edge 5 side along the arcuate peripheral edge 10,
After branching, there is a slight time delay until the hair 9a reaches the exposed blade edge 3a (or the vicinity thereof). In this way, the hair 9 moves to the adjacent exposed blade edge 5 and groove portion 6 through the aging process and is supplied in a substantially even manner, so that the hair 9 can be cut in a well-balanced manner as a whole. . On the other hand, as in the conventional example, in the case where the branched hair moves to the exposed blade edge side almost immediately, the hair that exceeds the cutting ability of the blade edge (largely) is temporarily supplied, and the hair is balanced. It becomes an obstacle in cutting. The cutting of the hair 9 changes depending on various conditions such as the amount of hair to be cut and the cut portion, but since the portion protruding from the blade edge 3 is semicircular, the supply function over time is effectively exhibited.

The space A of the cut portion is formed by the exposed blade edge 3a serving as the bottom side and the semicircular convex pieces 5 and 5 of the same shape arranged on both sides. The length of the exposed blade edge 3a, which is a constituent element of the cut portion, is set to be twice or more the radius of the semicircular convex piece 5 and within 5 times. The exposed blade edge 3a cuts the hair 9 in the space A of the cut portion, but the blade edge 3a
The hairs 9a, 9 which are further branched by the convex pieces 5, 5 on both sides.
a is supplied. In consideration of the overflowing hair, the length of the blade edge 3a is sufficiently accommodated in the space A of the cut portion if the length is up to 5 times the radius of the semicircular convex piece 5.

A space B, which is a carding capacity of the groove portion 6, is formed by a parallel bottom portion 7 slightly below the blade edge 3 and semicircular convex pieces 5 and 5 of the same shape. In the illustrated case, the convex pieces 5 and 5 are arranged symmetrically with respect to the middle line (line XX in the figure). The length of the bottom portion 7, which is a component of the space B, is smaller than the length of the exposed blade edge 3a. That is, the space B of the groove portion, which is the carding capacity of the groove portion 6, and the space A of the cut portion including the exposed blade edge 3a.
When comparing, the space A of the cut portion is larger than the space B of the groove portion. When the space B in the groove has a storage capacity, the hair 9b on the groove side branched from the apex 11 of the convex piece 5,
9b moves to the groove portion 6 along the peripheral edge 10 of the semicircular convex piece 5, and is supplied to the space B of the groove portion. Hair 9 again
There is no immediate movement of b and 9b. Since the hairs 9b and 9b do not move abruptly to the groove portion 6, stable combing is possible, which also has a good effect on combing.

As described above, the semicircular convex piece 5 and the cut portion having the spaces A arranged in parallel on both sides of the convex piece 5 and the cut portion having the space B for determining the carding capacity are provided. When A is set to be larger than the space B of the groove portion and the hair in the space B of the groove portion exceeds the combing capacity when the hair is cut, a part of the unacceptable hair 9 near the apex 11 of the convex piece is apex 11 It is possible to move from the groove portion 6 side to the exposed blade edge 3a side over the distance to adjust the combing capacity of the groove portion 6. The present invention is applicable to any razor for hair cutting regardless of its specific structure such as a replaceable blade type.

[0016]

As described above, according to the present invention, the amount of hair supplied to the exposed blade edge can be stabilized, and the amount of combing hair is also adjusted, so that the overall balance is achieved. Hair can be cut.

[Brief description of drawings]

FIG. 1 is a front view of a razor for hair cutting according to the present invention.

FIG. 2 is a partially enlarged front view of the blade of the razor for hair cutting.

FIG. 3 is a partially enlarged rear view of the blade of the razor for hair cutting.

FIG. 4 is a partially enlarged front view of a convex piece of the blade body.

FIG. 5 is an explanatory diagram showing an example of a relationship between a convex piece and hair during cutting.

[Explanation of symbols]

1 Razor for haircut 2 blades 3 blade edge 5 convex pieces 6 groove 7 bottom 9 hair 10 rim 11 vertices Space of A cut part B Groove space

Claims (3)

[Claims] 1. A plurality of convex pieces intermittently coats a blade edge, and alternately has exposed blade edges and coated blade edges, and is located below the blade edge between a pair of convex pieces. In a razor for haircut having parallel grooves and a groove for adjusting the amount of combing hair, a pair of convex pieces has a semicircular shape in which the portion protruding from the blade edge is the same shape, and the blade edge when cutting the hair When moving the razor for cutting hair in a direction that intersects with the hair, the hair is guided into the peripheral edge of the convex piece by dividing the hair into exposed blade edge side and groove side with the apex of the semicircular convex piece as a branch point. A razor for hair cutting that moves over time to the exposed blade edge and groove and regulates the hair supplied to the exposed blade edge. 2. A semicircular convex piece, a cut portion having a space A provided in parallel on both sides of the convex piece, and a groove portion having a space B for determining a carding capacity, the space A of the cut portion being a space B of the groove portion. When the hair is made larger and the hair in the space B of the groove exceeds the combing capacity when the hair is cut, part of the hair near the apex of the convex piece can move beyond the apex to the exposed blade edge side from the groove side. The razor for hair cutting according to claim 1, wherein the combing capacity of the groove is adjusted. 3. The length of the blade edge exposed between the pair of convex pieces is
The razor for hair cutting according to claim 1 or 2, wherein the radius of the semicircular convex piece is not less than twice and not more than 5 times, and the length of the bottom of the groove is smaller than the length of the exposed blade edge.