EP3387945B1

EP3387945B1 - Comb

Info

Publication number: EP3387945B1
Application number: EP15910279.7A
Authority: EP
Inventors: Young-Soo Park
Original assignee: Park Way Co Ltd
Current assignee: Park Way Co Ltd
Priority date: 2015-12-11
Filing date: 2015-12-11
Publication date: 2020-10-21
Anticipated expiration: 2035-12-11
Also published as: CN108471856A; US20180368548A1; EP3387945A1; WO2017098664A1; KR101982997B1; KR20180093913A; EP3387945A4; JPWO2017098664A1; CN108471856B; JP6437671B2; RU2691188C1

Description

TECHNICAL FIELD

The present disclosure relates to a comb which is made easy to be gripped and makes it difficult for a hair bundle dipped up in a hairdressing work etc. to slide down, by forming a curved dent in an edge comb part or comb teeth provided to a comb main body.

BACKGROUND ART

Conventionally, combs used for hairdressing etc. are common to have a structure in which an edge comb part is protruded from both ends of a bar-shaped comb main body, respectively (one-end edge comb part provided to one end side in the longitudinal directions of the comb main body, and the other-end edge comb part provided to the other end side), and a plurality of comb teeth are provided between the edge comb parts provided to the both ends.
The following Patent Document 1 illustrates one example of the conventional comb, where the shape of a comb tooth in a state in which the width directions of the comb tooth is oriented to the front has a tapered wedge shape, and the perimeter edges on both sides (perimeter edges illustrated by the vertical lines on the both sides) are formed by the straight oblique lines (see Fig. 2 of Patent Document 1), and the shape of the edge comb part in a state in which the width directions of the comb edge part is oriented to the front has also a tapered shape, and the perimeter edges on both sides are formed by straight oblique lines (see Fig. 17(B) of Patent Document 1). In addition, this Patent Document 1 also illustrates the edge comb parts having through-holes which penetrate in the width directions thereof (corresponding to a tip-end part 2a or a base-end part 2b of Patent Document 1) (see Figs. 1, 5, 6, etc. of Patent Document 1). Note that, generally, as types of the shape of combs, they can be roughly classified into a type having a grip part (tail part) (e.g., the type illustrated in Figs. 7, 8, 10, 11, 13, 14, 17, 18, etc. of Patent Document 1) and a type which does not have the grip part (e.g., the type illustrated in Figs. 1, 5, 15, etc. of Patent Document 1).
Moreover, the following Patent Document 2 discloses one in which a notched part (6) or a central recessed part (7) is formed in a perimeter edge on one side in width directions (front side of the comb) of comb teeth (see Figs. 1 to 4 of Patent Document 2). Similarly, the following Patent Document 3 also discloses a comb in which a groove 3b which is notched in a corrugated and arc shape is formed in perimeter edges (outside surface) on one side (front side of the comb) or both side (front side and back side of the comb) in width directions of comb teeth (see Figs. 7 and 8, and [0016] of Patent Document 3). Further, the following Patent Document 4 discloses a comb in which a notched part 34 is formed in a perimeter edge on one side in width directions is formed in comb teeth provided to a cap with the comb (see Fig. 7 and [0005] of Patent Document 4).
Note that the following Patent Document 4 discloses a ring comb for permanent which is provided with curved and inclined comb teeth. Moreover, the following Patent Document 5 discloses a brush for hair coloring in which dented parts (finger holding parts) having the size of a finger being stopped are formed in a side surface of a brush base part in order for the comb to be fitted in a hand and in order to make it difficult to be slipped.

[Reference Documents of Conventional Art]

[Patent Documents]

[Patent Document 1] JP1994-066504U
[Patent Document 2] JP1987-039604U
[Patent Document 3] JP1998-276830A
[Patent Document 4] JP1993-220011A
[Patent Document 5] JP3085833U

EP 2 929 800 A1 discloses a comb according to the preamble of claim 1.

DESCRIPTION OF THE DISCLOSURE

[Problems to be Solved by the Disclosure]

Beauticians and barbers who are professional users of the combs change the way to hold the comb variously according to the type of work. As examples of the way to hold the comb, holding the comb while fingers contact comb teeth, a finger (e.g., a thumb) contacts both an edge comb part and comb teeth located in a range near the edge comb part, etc. may be taken. However, if such a holding way is adopted, since the comb teeth and the edge comb part have the perimeter edge of a straight (linear) shape as described above, and on the other hand, the part of the user's finger(s) which touches the comb side has a curved shape in the holding way described above, the contacting state between the comb side and the user's finger(s) side becomes a point contact.
The beauticians and barbers who are professional users may perform the work using the comb while water, hairdressing fluid, etc. is adhered to the fingers, and when water, hairdressing fluid, etc. is adhered to the fingers, the finger surface becomes slippery, and if the comb is held in the point-contact manner as described above in such a state, a problem that a gripping power suitable for holding the comb is difficult to be obtained occurs.
Moreover, the hair may be set with the comb using lotion with a high viscosity (e.g., a method of setting hair, referred to as "Finger Wave" which is also a subject of the beautician's state examination), and when setting hair using such lotion with the high viscosity etc., the user is required to put a remarkable power into the fingers which support the comb. However, since the contacting state of the user's fingers and the comb is the point contact as described above, there is a problem that the power is concentrated on the contacting part of the fingers and the load to the fingers at the contacting part is large. In addition, when the lotion etc. is adhered to the contacting part of the fingers, the skin of this part may be swollen, and in the state where the skin of the fingers is swollen, if the work with the large load to the fingers described above is performed, the skin of the fingers may possibly be damaged, such as the skin of this part of the finger where the power which supports the comb is concentrated may peel off.
Further, as the work using the comb, the hair bundle to be cut may be dipped up by the comb, and when performing such a work, since the comb teeth and the edge comb part have the wedged tapered shape as described above, there is a problem that the hair bundle which has been dipped up with considerable effort is easier to slide down from the tip-end side of the comb teeth and the edge comb part. Further, as another example of the work using the comb, a work in which the comb is inserted into the hair and is moved inside the hair to divide the hair in a desired direction is performed (parting work), and when performing such a work, since the edge comb part has a greater thickness than comb teeth, the resistance caused by the contact with the hair is large and, thus, there is also a problem that the work to insert the edge comb part into the hair or to move the edge comb part is not smoothly performed.
Note that, regarding the problems described above, in the comb teeth according to Patent Document 2, the bottom surface of the notched part (6) or the central recessed part (7) is flat shape. Thus, when the fingers are fitted into the notched part (6) or the central recessed part (7), since the fingers only point-contacts the flat bottom surface, the gripping power suitable for gripping the comb cannot be obtained and the load on the fingers at the contacting part cannot be reduced. Moreover, since the comb according to Patent Document 3 has the notched groove 3b which is formed by notching into the comb teeth of the corrugated arc shape, when the fingers are fitted into such a groove 3b, the load on the fingers increases due to the corrugated sharp part bites into the fingers.
Moreover, referring to the example of usage illustrated in Fig. 5 of Patent Document 4, since in the ring comb for permanent according to Patent Document 4, the thickness of the illustrated fingers is equal to or more than the length of the comb teeth, and the fingers cover up the comb teeth up to the tip end if the way to grip the comb teeth or the edge comb part with the fingers is performed, it does not function as a comb. Thus, it cannot be considered that this holding way cannot be used for the ring comb for permanent according to Patent Document 4. Further, since the brush for hair coloring according to Patent Document 5 is a brush where the dented part is formed in the brush base part corresponding to the comb main body, it cannot contribute at all to the way of hold the comb which supports the comb at the comb teeth or the edge comb part. Moreover, although the comb according to Patent Document 1 has the through-holes formed in the tip-end part 2a or the base-end part 2b corresponding to the edge comb part, since the formed parts of the through-holes are not a tip-end portion, these through-holes are not related to the contact of the tip-end portion of the edge comb part with the hair at all.
The present invention is made in view of these situations, and one purpose thereof is to provide a comb according to claim 1.

[Summary of the Disclosure]

In order to solve the problems, a comb not forming part of the invention includes a comb main body, an edge comb part provided to both ends of the comb main body in longitudinal directions, respectively, and a plurality of comb teeth projecting from the comb main body between the edge comb parts at both ends. In each of the adjacent comb teeth included in at least a partial range of the plurality of comb teeth, a comb tooth recessed part of a curved shape based on a concave curve is formed in a middle part between a tip-end side and a root side in at least one of perimeter edges of the comb tooth in width directions. A dimension of a narrowest-width part in the middle part of the comb tooth where the comb tooth recessed part is formed is smaller than a widest-width part on the tip-end side of the comb tooth.
Since the comb tooth recessed part entirely having the curved shape based on the concave curve is formed in the middle part of each of the adjacent comb teeth included in the partial range, if a holding way in which the comb teeth is supported by fingers is carried out, the fingers are fitted into each of the comb tooth recessed parts of the adjacent comb teeth, and the fingers fitted into each of the comb tooth recessed parts contact to the comb side over a wide area instead of a point contact because of the entire curved shape of the comb tooth recessed parts. By the fingers contacting over such a wide area being fitted into the comb tooth recessed parts, a moderate gripping feel is secured to the fingers which support the comb, power acting on the fingers is distributed to the wide contact locations, and the load on the fingers is reduced. In addition, when a work such as dipping up a hair bundle to be cut is performed by the comb, since the dipped-up hair bundle is fitted into the comb tooth recessed parts, the dipped-up hair bundle is made difficult to slide down from the tip-end side of the comb teeth.
Further, a comb not forming part of the invention includes a comb main body, an edge comb part provided to both ends of the comb main body in longitudinal directions, respectively, and a plurality of comb teeth projecting from the comb main body between the edge comb parts at both ends. In at least one of the edge comb parts at both ends, a recessed part of a curved shape based on a concave curve is formed in a middle part between a tip-end side and a root side in at least one of perimeter edges of the edge comb part in width directions. A dimension of a narrowest-width part in the middle part of the edge comb tooth where the recessed part is formed is smaller than a widest-width part on the tip-end side of the edge comb part. In each of the comb teeth included in a range provided to the edge comb part side where at least the recessed part is formed, among the plurality of comb teeth, a comb tooth recessed part of a curved shape based on a concave curve is formed in a part corresponding to the recessed part of the edge comb part in width directions of the comb teeth. A dimension of a narrowest-width part in the middle part of the comb tooth where the comb tooth recessed part is formed is smaller than a widest-width part on the tip-end side of the comb tooth. The recessed part smoothly leads to the comb tooth recessed parts in directions along in the longitudinal directions of the comb main body.
The recessed part is formed in at least one of the edge comb parts at both ends of the comb main body and the comb tooth recessed part is formed in each of the comb teeth belonging to a range provided on the edge comb part side on which the recessed part is formed, so that the recessed part of the edge comb part smoothly leads to the comb tooth recessed part of each of the comb teeth. Therefore, if one holds the comb in such a manner that fingers contact the edge comb part and the comb teeth located in a range near the edge comb part, the fingers are fitted into the recessed part and the comb tooth recessed parts. Since the recessed part and the comb tooth recessed part entirely have the curved shapes, respectively, they easily contact the fingers over a wide area. Thus, a moderate gripping power is obtained, power acting on the contacting locations of the fingers is distributed to the wide area, and the load on the fingers can be reduced.
In addition, when a work such as dipping up a hair bundle to be cut is performed by the comb, since the dipped-up hair bundle is fitted into the recessed part and the comb tooth recessed parts, it is made difficult to slide down from the tip-end side of the comb teeth and the edge comb part. Note that, the dimension of the narrowest-width part of the edge comb part where the recessed part is formed is smaller than the widest-width part on the tip-end side of the edge comb part, and the dimension of the narrowest-width part of the comb tooth where the comb tooth recessed part is formed is smaller than the widest-width part on the tip-end side of the comb tooth. Therefore, both the recessed part and the comb tooth recessed parts become possible to secure their sufficient range and depth dimensions so as to achieve the above described effect.
The recessed part of the edge comb part may be formed in both the perimeter edges on one side and the other side in the width directions. Since the recessed part of the edge comb part is formed in both the perimeter edges in the width directions, the comb tooth recessed parts of the comb teeth which are formed corresponding to the recessed parts are also provided on both sides in the width directions. Thus, even if the comb is gripped from either of the front side or the back side of the comb, the fingers are fitted into the recessed parts and the comb tooth recessed parts, resulted in enhancing a gripping performance of the comb. Further, due to the similar reason, even if a work such as dipping up a hair bundle to be cut is performed by either of the front side or the back side of the comb, the dipped-up hair bundle is fitted into the recessed part and the comb tooth recessed parts, resulted in improving a user-friendliness of the comb.
The recessed part may be formed in both the edge comb parts at both ends. Since the recessed part is formed in both the edge comb parts provided to both ends of the comb main body, even if the comb is gripped from either of the both ends of the comb main body, a thumb is fitted into the recessed part and the comb tooth recessed parts, resulted in further enhancing the gripping performance. Further, due to the similar reason, even if a work such as dipping up a hair bundle to be cut is performed from either of the both ends of the comb main body, the dipped-up hair bundle is fitted into the recessed part and the comb tooth recessed parts, resulted in further improving the user-friendliness of the comb.
A short comb tooth with a shorter full length than the comb teeth may be provided to the comb main body so that the short comb tooth is adjacent to one of the edge comb parts at both ends. The comb tooth recessed part may be formed in the plurality of adjacent comb teeth other than the short comb tooth.
Since the short comb tooth is provided to be adjacent to one of the edge comb part, even if the recessed part and the comb tooth recessed part are provided, a work of forming a parting line of hair (parting work) is performed by the one of the edge comb part. In addition, since the comb tooth recessed part are formed in the plurality of adjacent comb teeth, it is suitable to a work such as dipping up a large amount of hair bundle, and an efficiency of the work using the comb is improved.
An edge may be formed in a portion where the recessed part and the root side in the edge comb part are connected with each other. Since the edge is formed in the portion where the recessed part and the root side in the edge comb part are connected, the finger fitted into the recessed part is caught at the edge. Thereby, the gripping performance of the finger holding the comb is further enhanced and the edge can be useful as an antiskid for the finger holding the comb.
An edge may be formed in a portion where the comb tooth recessed part and the root side in the comb tooth are connected with each other. Since the edge is formed in the portion where the comb tooth recessed part and the root side in the comb tooth are connected, the finger fitted into the comb tooth recessed parts is caught at the edge of each comb tooth. Thereby, the gripping performance of the finger holding the comb is further enhanced and the antiskid function for the finger holding the comb is further improved.
An edge may be formed in a portion where the recessed part and the tip-end side in the edge comb part are connected with each other. Since the edge is formed in the portion where the recessed part and the tip-end side in the edge comb part are connected, the hair bundle fitted into the recessed part is caught at the edge during the dipping-up by the comb, and it becomes further difficult for the dipped-up hair bundle to slide down from the comb teeth and the edge comb part.
An edge may be formed in a portion where the comb tooth recessed part and the tip-end side in the comb tooth are connected with each other. Since the edge is formed in the portion where the comb tooth recessed part and the tip-end side in the comb tooth are connected, the hair bundle fitted into the comb tooth recessed part is caught at the edge during the dipping-up by the comb, and it becomes further more difficult for the dipped-up hair bundle to slide down from the comb teeth and the edge comb part.
The recessed part and the comb tooth recessed part may be made into the same curved shape based on the concave curve of the same curvature. Since the recessed part and the comb tooth recessed part are made into the same curved shape based on the concave curve of the same curvature, the recessed part and the comb tooth recessed part are continuously connected smoothly in the same shape. Thereby, touching feeling by the fingers fitted in the recessed part and the comb tooth recessed parts is improved and the hair bundle dipped up by the comb becomes easy to be fitted into the recessed part and the comb tooth recessed parts smoothly, which improves a workability of the comb.
According to the present invention, a tip end through-hole penetrating in the width directions of the edge comb part is formed in a part of the edge comb part within a range from the recessed part to the tip-end sides, and a counter bore is formed around the tip end through-hole. The tip end through-hole penetrating in the width directions of the edge comb part is formed in the part of the edge comb part on the tip-end side from the recessed part. Therefore, in a case of inserting the tip end of the comb into the hair, moving the comb inside the hair, etc., although conventionally the edge comb part has become the resistance caused by the contact with the hair because the edge comb part has a greater thickness than comb teeth, by forming the tip end through-hole on the tip-end side of the edge comb part, contact range with the hair is reduced because of the opening of the tip end through-hole and the tip end of the edge comb part becomes easy to move against the hair. Further, since the recessed part of the edge comb part and the comb tooth recessed parts of the comb teeth also loosen the contact state with the hair, the work such as inserting the tip end of the comb into the hair and moving the comb inside the hair becomes easy to be performed than the conventional comb.

[Effect of the Disclosure]

Since the comb tooth recessed part having the curved shape entirely based on the concave curve is formed in the middle part of each of the adjacent comb teeth included in the partial range, the fingers fitted into each of the comb tooth recessed parts contact to the comb side over a wide range, the moderate gripping feel is secured to the fingers which support the comb, the power acting on the fingers is distributed to the wide contact locations, and the load on the fingers is reduced.
Further, since the recessed part of the edge comb part is formed in addition to the comb tooth recessed parts of the comb teeth, even if the comb is gripped from either one of the front side or the back side of the comb, the thumb is fitted into the recessed part and the comb tooth recessed parts. Thus, the gripping performance of the comb is enhanced without considering the direction of the comb and the load on the fingers which support the comb is reduced. Further, even if the work of dipping up a hair bundle to be cut etc. is performed without considering the direction of the comb, the dipped-up hair bundle is fitted into the recessed part and the comb tooth recessed parts, resulted in improving the user-friendliness of the comb.
Since the recessed part and the comb tooth recessed part are made into the same curved shape based on the concave curve of the same curvature, the recessed part and the comb tooth recessed part are continuously and smoothly connected in the same shape. Thereby, the touching feeling by the finger fitted in the recessed part and the comb tooth recessed part is improved and the hair bundle dipped up by the comb is fitted into the recessed part and the comb tooth recessed part smoothly. Thus, the work of dipping up the hair bundle using the comb is performed efficiently. Since the recessed part is formed in both the edge comb parts provided to the both ends of the comb main body, even if the comb is gripped from either of the both ends of the comb main body in the longitudinal direction, the thumb is fitted into the recessed part and the comb tooth recessed part, resulted in further enhancing the gripping performance. Further, due to the similar reason, even if the work of dipping up a hair bundle to be cut etc. is performed by mainly using either one of the ends of the comb main body in the longitudinal direction, the dipped-up hair bundle is fitted into the recessed part and the comb tooth recessed parts, resulted in further improving the user-friendliness of the comb.
Since the short comb tooth is provided to be adjacent to one of the edge comb part, even if the recessed part and the comb tooth recessed part are provided, a work of forming a parting line of hair (parting work) is performed by the one of the edge comb part. In addition, since the comb tooth recessed part are formed over the entire range, it is suitable for a work of dipping up a large amount of hair bundle, etc. and an efficiency of the work using the comb is improved.
Since the edge is formed in the portion where the recessed part and the root side are connected in the edge comb part, the finger fitted into the recessed part and the comb tooth recessed part is caught at the edge. Thereby, the gripping performance of the finger holding the comb is enhanced and the edge can be useful as an antiskid. Since the edge is also formed in the portion where the comb tooth recessed part and the root side are connected in the comb tooth, the finger fitted into the recessed part and the comb tooth recessed part is caught at the edge of each comb tooth. Thereby, the gripping performance of the finger holding the comb is further enhanced and the antiskid function for the finger holding the comb is further improved.
Since the edge is formed in the portion where the recessed part and the tip-end side are connected in the edge comb part, the hair bundle fitted into the recessed part and the comb tooth recessed part is caught at the edge during the dipping-up by the comb, and it prevents the dipped-up hair bundle from sliding down from the comb teeth and the edge comb part. Since the edge is also formed in the portion where the comb tooth recessed part and the tip-end side are connected in the comb tooth, the hair bundle fitted into the recessed part and the comb tooth recessed part is caught at the edge of each comb tooth during the dipping-up by the comb, and the prevention for the dipped-up hair bundle from sliding down from the comb teeth and the edge comb part is further increased.
Since the tip end through-hole penetrating in the width directions of the edge comb part is formed in the part of the edge comb part within a range from the recessed part to the tip end side, contact range of the tip end portion of the edge comb part with the hair is reduced and the work such as inserting the tip end of the comb into the hair and moving the comb inside the hair becomes easier to be performed than the conventional comb.

BRIEF DESCRIPTION OF DRAWINGS

Fig. 1 is a schematic perspective view illustrating a comb according to a first embodiment of the present disclosure.
Fig. 2(a) is a front view illustrating the details on one end side of the comb in longitudinal directions, and (b) is a side view of one-end edge comb part seen from one-end outer edge surface.
Fig. 3(a) is a partial cross-sectional view illustrating a short comb tooth taken along a line A-A of Fig. 2(a), and (b) is a partial cross-sectional view illustrating a comb tooth taken along a line B-B of Fig. 2(a)
Fig. 4(a) is a front view illustrating the details on the other end side of the comb in the longitudinal directions, and (b) is a side view of the other-end edge comb part seen from the other-end outer edge surface.
Fig. 5 is a perspective view of a substantial part illustrating a state where the comb is gripped in such a that manner so that a thumb touches the other-end edge comb part and the comb teeth located nearby.
Figs. 6(a) and (b) illustrate the position of the thumb in a gripping state illustrated in Fig. 5, where (a) is a side view illustrating a state where the thumb is fitted into a recessed part of the other-end edge comb part, and (b) is a partial cross-sectional view illustrating a state where the thumb is fitted into a comb tooth recessed part of the comb tooth taken along a line C-C of Fig. 5.
Fig. 7(a) is a front view illustrating a gripping state of the comb corresponding to the first embodiment according to the way of finger-wave hairdressing, and (b) is a partial cross-sectional view illustrating a supporting state by a little finger corresponding to the way of finger-wave hairdressing.
Fig. 8(a) is a schematic view illustrating an outline of a work to dip up a hair bundle with the comb, (b) is a schematic side view of the one-end edge comb part illustrating a state where the dipped-up hair bundle is fitted into the recessed part, and (c) is a schematic view of the comb tooth illustrating a state where the dipped-up hair bundle is fitted into the comb tooth recessed part.
Fig. 9 is a schematic cross-sectional view illustrating a contacting state of the one-end edge comb part and the hair, taken along a line D-D of Fig. 2(a) when the comb is inserted into the hair.
Fig. 10 is a front view of the comb according to the first embodiment illustrating a range of a plurality of comb teeth.
Fig. 11 illustrates modifications of the first embodiment, (a) is a side view of the one-end edge comb part of the comb according to a modification seen from the one-end outer edge surface, and (b) is a partial cross-sectional view illustrating the comb teeth of the comb according to the modification.
Fig. 12(a) is a side view of one-end edge comb part of a comb according to another modification seen from one-end outer edge surface, and (b) is a partial cross-sectional view illustrating comb teeth of the comb according to another modification.
Fig. 13(a) is a side view of one-end edge comb part of a comb according to still another modification seen from one-end outer edge surface, and (b) is a partial cross-sectional view illustrating comb teeth of the comb according to still another modification.
Fig. 14(a) is a side view of one-end edge comb part of a comb according to still another modification seen from one-end outer edge surface, and (b) is a partial cross-sectional view illustrating comb teeth of the comb according to still another modification.
Fig. 15(a) is a front view of a comb according to a second embodiment of the present disclosure, and (2) is a front view of a comb according to a modification of the second embodiment.

MODES FOR CARRYING OUT THE INVENTION

[Example 1]

Fig. 1 is a perspective view schematically illustrating the entire of a comb 1 according to a first embodiment of the present invention The comb 1 is made of synthetic resin, and it has a structure such that edge comb parts (one-end edge comb part 3 and the other-end edge comb part 4) project from both ends (one end side 2a and the other end side 2b) of an extended bar-shaped comb main body 2 in longitudinal directions, and a plurality of comb teeth 6 project from the comb main body 2 between the one-end edge comb part 3 and the other-end edge comb part 4. Note that, X-axis direction illustrated in Fig. 1 is a direction along the longitudinal directions of the comb 1 (comb main body 2), Y-axis direction perpendicular to the X-axis direction is a direction along the projecting direction of the comb teeth 6 and the respective edge comb parts 3 and 4, and Z-axis direction perpendicular to the X-axis direction and the Y-axis direction is a direction along width directions of the comb 1 (comb main body 2), the respective edge comb parts 3 and 4, and the respective comb teeth 6 (similar in other figures). Below, the comb 1 is described in detail.
As illustrated in Figs. 1, 2(a), 4(a), etc., in the comb main body 2, a plurality of through-holes 7 penetrating from a first surface 2c corresponding to the front surface to a second surface 2d corresponding to the opposite back surface are formed along the Z-axis direction, and these plurality of through-holes 7 are, fundamentally, arranged so as to be linearly spaced from each other at a given interval in the X-axis direction. The through-hole 7 is an ellipse which is elongated in the X-axis direction, and an elliptical counter bore 7a is formed around the ellipse (see also Fig. 3(b)). Note that, in the first embodiment, the ratio of the inner diameter on the long axis side of the through-hole 7 to the inner diameter on the short axis side is set to 2:1, and as one example, the inner diameter on the long axis side is set to about 4 mm (millimeter) and the inner diameter on the short axis side is set to about 2 mm (note that, for the counter bore 7a, it may be considered that the inner diameter on the long axis side is set to about 9 mm and the inner diameter on the short axis side is set to about 3 mm, for example).
As illustrated in Fig. 2(a), the through-hole 7 located closest to one end side 2a of the comb main body 2 is formed so that its center is at a position distant by a distance L from an outer edge of the one-end edge comb part 3 provided to the one end side 2a of the comb main body 2 (a part of the range of a root side 3b of one-end outer edge surface 3d, which is the surface of the outer edge of the one-end edge comb part 3). The through-holes 7 which are the second and following through-holes in the order from the one end side 2a are formed at positions so that the interval of the centers of the through-holes 7 is the distance L, respectively. As one concrete example of the distance L, it may be set to a dimension by the millimeter unit or the inch unit according to the product destination, specification, etc. of the comb 1, and for example, if the dimension by the millimeter unit is used, it is suitable to be set to 10 mm etc. which is the most standard dimension, and if the dimension by the inch unit is used, it is suitable to be set to 1 inch, 0.5 inches, etc. The plurality of through-holes 7 formed at such an interval are usable as markers or indexes indicating a given dimension at every distance L (markers indicating the distance along the longitudinal directions of the comb main body 2).
Moreover, as illustrated in Fig. 4(a), also at the other end side 2b of the comb main body 2, the plurality of through-holes 7 are formed at an interval (distance L) similar to the one end side 2a described above from an outer edge of the other-end edge comb part 4 provided to the other end side 2b of the comb main body 2 (a part of the range on the root side 4b of the other-end outer edge surface 4d which is the surface of the outer edge of the other-end edge comb part 4). Note that, in a central part 2e of the comb main body 2 in the longitudinal directions 2 (see Fig. 1), the through-hole 7 is not formed in order to make the side at which a work of the comb 1 is performed function as a grip part when this side is changed between the one end side 2a and the other end side 2b (the side which is used for the work of the comb is changed to the one end side 2a or the other end side 2b by rotating the comb centering on the part gripped so that the central part 2e of the comb main body 2 is pinched).
As illustrated in Fig. 1, etc., in the comb 1, the plurality of comb teeth 6 are provided to the comb main body 2 so that they become parallel to the one-end edge comb part 3 and the other-end edge comb part 4, and regarding these comb teeth 6, in the longitudinal directions of the comb main body 2, as for a first range 1a (a range on the one-end edge comb part 3 side) which extends from the center of the central part 2e of the comb main body 2 to the one end side 2a, and a second range 1b (a range on the other-end edge comb part 4 side) which extends from the center of the central part 2e to the other end side 2b, the interval at which the respective comb teeth 6 are formed (comb teeth pitch) is different so that the comb teeth pitch in the first range 1a is larger than the comb teeth pitch in the second range 1b (it may be considered that, as one example of the comb teeth pitch in the first range 1a, about 3 mm, and as one example of the comb teeth pitch in the second range 1b, about 1.5 mm).
Thus, by differentiating the comb teeth pitches between the first range 1a and the second range 1b, different kinds of hairdressing works can be performed by the single comb 1, and for example, a rough hairdressing work may be performed with the first range 1a side and a fine hairdressing work may be performed with the second range 1b, and therefore, as described above, it is significant to change the side of the comb which is used for the work to the one end side 2a or the other end side 2b. Note that, the comb teeth 6 included in the first range 1a and the comb teeth 6 included in the second range 1b are differentiated in the thickness (a dimension of the comb teeth in the X-axis direction), and the thickness of the comb teeth 6 included in the first range 1a is a little more than about 1 mm, while the thickness of the comb teeth 6 included in the second range 1b is about 0.6 to 0.8 mm.
Moreover, in the comb 1, among the plurality of comb teeth 6, a short comb tooth 6' is provided at a part adjacent to the one-end edge comb part 3 in the first range 1a, which is shorter in the projecting dimension (full length in the Y-axis direction) than that of other comb teeth 6 having a normal length. Thus, when performing a work to form a parting line of hair (parting work) by the one-end edge comb part 3, the parting work is made easier because a space is produced around a tip end 3v (see Fig. 2(b)) of the one-end edge comb part 3. Note that, the thickness of the short comb tooth 6' is a little more than about 1 mm.
As illustrated in Fig. 1, and Figs. 2(a) and (b), the one-end edge comb part 3 has a tapered shape of which the point is narrowed and sharpened, projects from the one end side 2a of the comb main body 2 in a direction perpendicular to the comb main body 2 (a direction along the Y-axis direction), and encloses and protects the comb teeth 6. In Fig. 2(a) which is a front view, The one-end edge comb part 3 can be divided, in a direction along the Y-axis direction, into a range on a tip-end side 3a having a tapered tip end 3v, a range on the root side 3b connected with the comb main body 2, and a range of a middle part 3c which is between the tip-end side 3a and the root side 3b. Although the ratio of these ranges can be set variously according to a design and a specification, if the full length along the Y-axis direction of the one-end edge comb part 3 is set to "1," it is suitable that the tip-end side 3a and the root side are set to "about 0.3," and the middle part 3c is set to "about 0.4" so that the middle part 3c is made somewhat wider than other two ranges, and one-end dented part 3e illustrated in Fig. 2(a), and a first recessed part 3h and a second recessed part 3i illustrated in Fig. 2(b) secure necessary dimensions for user's fingers etc., respectively.
In the one-end edge comb part 3, the one-end dented part 3e of a curved shape based on a concave curve is formed in an edge which is the perimeter (the one-end outer edge surface 3d which is a surface forming the edge of the perimeter), in the front view of Fig. 2(a). It is suitable for the curvature according to this one-end dented part 3e (a curvature of the concave curve) to be slightly smaller than the smallest curvature part in the head of a common human body, and in the example illustrated in Fig. 2(a), it is 50 mm in the radius of curvature. Note that, at the root side 3b of the one-end edge comb part 3, the one-end outer edge surface 3d is formed in almost a flat surface, and at the tip-end side 3a of the one-end edge comb part 3, it is an outwardly convex curve (a curved surface) so that it is narrowed as approaching to the tip end 3v.
The one-end edge comb part 3 becomes, by forming the one-end dented part 3e described above, in a shape so that parts of the one-end outer edge surface 3d which are located on both sides of the one-end dented part 3e (the tip-end side 3a and the root side 3b) in the Y-axis direction project. Thus, when the one-end outer edge surface 3d is abut on the scalp of the head of the human body, it becomes 2-point contact to the scalp at the parts of the one-end outer edge surface 3d on both sides of the one-end dented part 3e, the stable posture of the comb 1 can be secured, and by using the through-holes 7 described above are used for a scale, and the comb 1 in the stable posture can measure a rough length of the hair which grows from the scalp.
Further, as illustrated in Figs. 2(a) and 9, the one-end edge comb part 3 forms a tip end through-hole 8 penetrating in the Z-axis direction (width direction) at the tip-end side 3a. Similar to the through-holes 7 of the comb main body 2, the tip end through-hole 8 is an ellipse and forms an elliptical counter bore 8a around the ellipse (see Fig. 9). Note that, the tip end through-hole 8 is arranged so that its long-axis direction is oblique with respect to the Y-axis direction and, thus, the outer edge on the tip-end side 3a which has the tapered shape is arranged so that an opening edge of the counter bore 8a of the tip end through-hole 8 is along an outwardly convex curve (a curved surface) to secure the possibly largest openings of the elliptical tip end through-hole 8 and the elliptical counter bore 8a.
Fig. 2(b) illustrates the one-end edge comb part 3 in a state where it is seen from the one-end outer edge surface 3d, and the shape of the one-end edge comb part 3 is laterally symmetrical in the state when seen from this direction. In the one-end edge comb part 3, a first recessed part 3h and a second recessed part 3i, which have entirely a curve-shaped based on the an arc-shaped concave curve, are formed in the middle part 3c (the part between the tip-end side 3a and the root side 3b) of one perimeter edge 3f (an edge on the same side as the first surface 2c which is the front side of the comb main body 2) and the other perimeter edge 3g (an edge on the same side as a second surface 2d which is the back side of the comb main body 2), in the width directions (a direction parallel to the Z-axis direction) respectively. Note that, although each of the perimeter edges 3f and 3g are expressed by a "line" in Fig. 2(b), it is actually a "surface" as clear in the front view according to Fig. 2(a), and therefore, the first recessed part 3h and the second recessed part 3i are also actually smooth "curved surfaces."
Moreover, in the one-end edge comb part 3, the perimeter edges 3f and 3g on both sides of the root side 3b are almost flat surfaces, and the perimeter edges 3f and 3g on both sides of the tip-end side are the curves (curved surfaces) which are outwardly convex so that the one-end edge comb part 3 is narrowed as it approaches the tip-end part.
The first recessed part 3h formed in the middle part 3c of the one perimeter edge 3f is made into a smooth arc-shaped concave curve (curved surface) which is convex centering the deepest part so that it is toward the center of the one-end edge comb part 3 within a nearby range. Note that, the parts on the tip-end side 3a and the root side 3b in the perimeter edge 3f centering on the first recessed part 3h are provided with points of inflection, parts further on the tip-end side 3a and the root side 3b from these points of inflection are made into smooth curves (curved surfaces) which are outwardly convex. Thus, the first recessed part 3h is connected with the tip-end side 3a by the smooth curve (curved surface) and is also connected with the root side 3b by the smooth curve (curved surface). Thus, the formed state of the curve (curved surface) of the first recessed part 3h is applied to the second recessed part 3i of the other perimeter edge 3g.
A radius of curvature R1 according to the concave curve which forms the first recessed part 3h and the second recessed part 3i is made into the curvature dimension corresponding to an average value of a thumb which is the thickest among human fingers, and in the example illustrated in Fig. 2(b), it is about 30 mm.
Moreover, the deepest parts of the first recessed part 3h and the second recessed part 3i correspond to the narrowest part (third part 3n) in the width of the middle part 3c, and a width W3 of the third part 3n is smaller than a width W1 of a first part 3j which is the widest at the tip-end side 3a (W3<W1), and the width W3 of the third part 3n is also smaller than a width W2 of a second part 3k which is wide at the root side 3b (W3<W2). Note that, the width W2 of the second part 3k is made larger than the width W1 of the first part 3j (W2>W1). Thus, by making the width W3 of the third part 3n smallest, the first recessed part 3h and the second recessed part 3i which are formed in the middle part 3c can secure a sufficient depth at the tip-end side 3a and the root side 3b.
Fig. 3(a) illustrates a cross-section taken along a line A-A in Fig. 2(a), and illustrates the short comb tooth 6' provided adjacent to the one-end edge comb part 3. As illustrated in Fig. 3(a), the short comb tooth 6' has a substantially tapered wedge shape which is laterally symmetrical when seen from a direction along the X-axis direction, a width of a root part 6b' on the comb main body 2 side is a width W4, and this width W4 is less than the width W2 on the root side 3b of the one-end edge comb part 3 described above. Moreover, a tip-end part 6a' of the short comb tooth 6' is located within a range corresponding to the middle part 3c of the one-end edge comb part 3 described above, and a width W5 of the tip-end part 6a' is made smaller than the width at any location of the first recessed part 3h and the second recessed part 3i of the one-end edge comb part 3, and when it is seen in the X-axis direction, the contours of the tip-end part 6a' and the root part 6b' do not extend outwardly from the curves (curved surfaces) according to the first recessed part 3h and the second recessed part 3i. Note that, if it is difficult to fall the contour of the short comb tooth 6' within the curves according to the first recessed part 3h and the second recessed part 3i of the one-end edge comb part 3, a recessed part is also formed in the short comb tooth 6' by denting the part to be outwardly protruded.
Fig. 3(b) illustrates a cross-section taken along a line B-B in Fig. 2(a), and illustrates the comb tooth 6. The comb tooth 6 illustrated in Fig. 3(b) is one example of the plurality of comb teeth 6 of the comb 1, and all of the plurality of comb teeth 6 have a similar structure to the comb tooth 6 illustrated in Fig. 3 (note that the short comb tooth 6' is excluded). When seen from the direction along the X-axis direction, the comb tooth 6 also has a tapered shape which is laterally symmetrical, and it can be divided along the Y-axis direction into a range on a tip-end side 6a having a tapered tip end 6v, a range on a root side 6b connected with the comb main body 2, and a range of a middle part 6c which is between the tip-end side 6a and the root side 6b. The tip end 6v of the comb tooth 6 is at the same position in the projecting direction as the tip end 3v of the one-end edge comb part 3 described above, a range of the tip-end side 6a of the comb tooth 6 corresponds in the position and dimension to the range on the tip-end side 3a of the one-end edge comb part 3, the range of the middle part 6c of the comb tooth 6 corresponds in the position and dimension to the range of the middle part 6c of the one-end edge comb part 3, and a range of the root side 6b of the comb tooth 6 corresponds in the position to the range of the middle part 3c in the root side 3b of the one-end edge comb part 3 (the dimension of the range on the root side 6b in the comb tooth 6 is about 1/3 of the dimension of the root side 3b of the one-end edge comb part 3).
In the comb tooth 6, in the middle part 6c of perimeter edges 6f and 6g on both sides in the width directions (Z-axis direction), when seen from a direction illustrated in Fig. 3(b), a first comb tooth recessed part 6h and a second comb tooth recessed part 6i, which are entirely a curve shape based on a smooth arc-shaped concave curve, are formed in parts corresponding to the first recessed part 3h and the second recessed part 3i of the one-end edge comb part 3 which are described above, respectively. The shape of the first comb tooth recessed part 6h and the second comb tooth recessed part 6i has a similar structure to and the same shape as the first recessed part 3h and the second recessed part 3i of the one-end edge comb part 3. A radius of curvature R2 according to the concave curve in the deepest part of the first comb tooth recessed part 6h and the second comb tooth recessed part 6i has the same dimension as the radius of curvature R1 according to the first recessed part 3h and the second recessed part 3i and, thus, the first comb tooth recessed part 6h and the second comb tooth recessed part 6i (comb tooth recessed parts) have a curved shape of the same shape and the same size as the first recessed part 3h and the second recessed part 3i (recessed parts), respectively.
Moreover, also in the comb teeth 6, a width W8 of the third part 6n which is the narrowest width in the middle part 6c (the deepest part of the first comb tooth recessed part 6h and the second comb tooth recessed part 6i) is made smaller than a width W6 of a first part 6j which is the widest in the tip-end side 6a (W8<W6), and the width W8 of the third part 6n is smaller a width W7 of a second part 6k which is wider in the root side 6b (W8<W7). Note that, the width W8 of the second part 6k is larger than the width W6 of the first part 6j (W7>W6). Thus, also in the comb teeth 6, by making the width W8 of the third part 6n in the middle part 6c the smallest, the first comb tooth recessed part 6h and the second comb tooth recessed part 6i which are formed in the middle part 6c can secure sufficient depths.
By the above structure, in the front side of the comb 1 (the first surface 2c side of the comb main body 2), the first recessed part 3h of the one-end edge comb part 3 has a structure in which it smoothly leads to the first comb tooth recessed part 6h of the comb tooth 6 located nearby having the short comb tooth 6' therebetween in the directions along the longitudinal directions of the comb main body 2, and they are smoothly continuous, and similarly, also in the back side of the comb 1 (the second surface 2d side of the comb main body 2), the second recessed part 3i of the one-end edge comb part 3 has a structure in which it smoothly leads to the second comb tooth recessed part 6i of the comb tooth 6 located nearby having the short comb tooth 6' therebetween, and they are smoothly continuous.
The comb teeth 6 having the structure described above are common to those included in the first range 1a of a wide pitch illustrated in Fig. 1 and those included in the second range 1b of a narrow pitch, the first comb tooth recessed parts 6h of the respective comb teeth 6 included in the first range 1a and the second range 1b have the structure in which they are smoothly continuous (communicating with each other) at the front side of the comb 1 (the first surface 2c side of the comb main body 2), and the second comb tooth recessed parts 6i of the respective comb teeth 6 included in the first range 1a and the second range 1b have the structure in which they are smoothly continuous (communicating with each other) at the back side of the comb 1 (the second surface 2d side of the comb main body 2).
Fig. 4(a) is a front view illustrating a substantial part of the other-end edge comb part 4 of the comb 1, and the other-end edge comb part 4 is fundamentally laterally symmetrical with respect to the one-end edge comb part 3 illustrated in Fig. 2(a) etc. described above. That is, the other-end edge comb part 4 is divided into a range of a tip-end side 4a which has a tapered shape of which the point is narrowed and sharpened, extends in a direction along the Y-axis direction from the other end side 2b of the comb main body 2, and has a tapered tip end 4v, a range of a root side 4b connected with the comb main body 2, and a range of a middle part 4c, and the other-end dented part 4e of a curve shape is formed in the other-end outer edge surface 4d of the middle part 4c. The other-end edge comb part 4 forms, at the tip-end side 4a, an elliptical tip end through-hole 9 penetrating in the Z-axis direction (width direction), and this tip end through-hole 9 has an elliptical counter bore 9a.
Moreover, Fig. 4(b) illustrates a state of the other-end edge comb part 4 when seen from the other-end outer edge surface 4d, and also when it is seen from this direction, the shape of the other-end edge comb part 4 is laterally symmetrical with the one-end edge comb part 3 described above. That is, in the other-end edge comb part 4, a first recessed part 4h and a second recessed part 4i which are entirely a curved shape based on a concave curved shape are formed in the middle part 4c (a part between the tip-end side 4a and the root side 4b) of one perimeter edge 4f (an edge on the same side as the first surface 2c which is the front side of the comb main body 2) in the width directions (directions parallel to the Z-axis direction) and the other perimeter edge 4g (an edge on the same side as the second surface 2d which is the back side of the comb main body 2), respectively (the first recessed part 4h and the second recessed part 4i have a similar structure to the first recessed part 3h and the second recessed part 3i of the one-end edge comb part 3 which are described above, respectively).
Also in the other-end edge comb part 4, a width W3 of a third part 4n which is the narrowest in the middle part 4c is made smaller than a width W1 of the first part 4j which is the widest in the tip-end side 4a (W3<W1), and the width W3 of the third part 4n is made also smaller than a width W2 of the second part 4k which is wider in the root side 3b (W3<W2). Note that, the width W2 of the second part 4k is larger than the width W1 of the first part 4j (W2>W1).
By the above structure of the other-end edge comb part 4, also at the other-end edge comb part 4 side, on the front side of the comb 1 (the first surface 2c side of the comb main body 2), the first recessed part 4h of the other-end edge comb part 4 smoothly leads to the first comb tooth recessed parts 6h of the respective comb teeth 6 located nearby, and both are smoothly continuous, and at the back side of the comb 1 (the second surface 2d side of the comb main body 2), and the second recessed part 4i of the other-end edge comb part 4 smoothly leads to the second comb tooth recessed parts 6i of the comb teeth 6 located nearby, and both are smoothly continuous.
Therefore, the entire comb 1 has the structure so that, in the entire range from the one-end edge comb part 3 to the other-end edge comb part 4 through the plurality of comb teeth 6, on the front side of the comb 1 (the first surface 2c side of the comb main body 2), the first recessed part 3h of the one-end edge comb part 3, the first comb tooth recessed parts 6h of the plurality of comb teeth 6, and the first recessed part 4h of the other-end edge comb part 4 smoothly leads to each other and are smoothly continuous, and also on the back side of the comb 1 (the second surface 2d side of the comb main body 2), the second recessed part 3i of the one-end edge comb part 3, the second comb tooth recessed parts 6i of the plurality of comb teeth 6, and the second recessed part 4i of the other-end edge comb part 4 smoothly leads to each other and are smoothly continuous.
Fig. 5 illustrates a case where the user holds the comb 1 according to the first embodiment by supporting the other-end edge comb part 4 and the plurality of comb teeth 6 located within a range near the other-end edge comb part 4 with a thumb F1.
Fig. 6(a) illustrates a state of the other-end edge comb part 4 in the state illustrated in Fig. 5 when seen from the other-end outer edge surface 4d (a state when seen from the same direction as Fig. 4(b)), the user's thumb F1 is fitted into the first recessed part 4h formed in the middle part 4c of the one perimeter edge 4f on the same side as the front side of the comb 1 (the first surface 2c side of the comb main body 2). Since the first recessed part 4h is connected with the tip end 4a and the root side 4b by the smooth curves in the Y-axis directions, when the user's thumb F1 touches the one perimeter edge 4f of the other-end edge comb part 4 for gripping, the thumb F1 is smoothly guided into the first recessed part 4h by touch from either the tip-end side 4a or the root side 4b, and is naturally fitted into the first recessed part 4h.
Moreover, Fig. 6(b) illustrates a cross-section taken along a line C-C of the state illustrated in Fig. 5, and the user's thumb F1 is fitted into the first comb tooth recessed part 6h formed in the middle part 6c of the one perimeter edge 6f on the same side as the front side of the comb 1 (the first surface 2c side of the comb main body 2). Since this first comb tooth recessed part 6h is connected with the tip-end side 6a and the root side 6b by the smooth curves in the Y-axis directions, when the user's thumb F1 touches the one perimeter edge 6f of the comb teeth 6 for gripping, the thumb 1 is smoothly guided into the first comb tooth recessed part 6h from either the tip-end side 6a or the root side 6b, and it is naturally fitted into the first comb tooth recessed part 6h. Note that, a relation between the comb teeth 6 in the part touched by the thumb F1 other than the part according to the line C-C and the thumb F1 becomes a similar state to the state illustrated in Fig. 6(b).
Moreover, since the first recessed part 4h of the other-end edge comb part 4 smoothly leads to the respective first comb tooth recessed parts 6h, having the same shape with the first recessed part 4h, of the plurality of comb teeth 6 located within a range adjacent to the other-end edge comb part 4. Thus one finger (thumb) is fitted into a space formed by the first recessed part and the plurality of first recessed parts 6h across these parts. In this state, since the first recessed part 4h and the first comb tooth recessed parts 6h have the curved shapes, a curved cushion part of the thumb F1 becomes in a surface contact instead of a point contact and, thus, the thumb F1 contacts the comb 1 with a larger range than the conventional arts. Therefore, when supporting the comb 1, the load acting on the thumb F1 is distributed and the gripping power over the comb 1 increases, and the first recessed part 4h and the first comb tooth recessed parts 6h is also useful as an antiskid. Moreover, if the user carries out the holding way at the back side of the comb 1 (the second surface 2d side of the comb main body 2) so that an index finger F2 touches the middle part 6c of the comb teeth 6, the index finger F2 is also fitted into the second comb tooth recessed parts 6i of the respective comb teeth 6 in a part touched by the index finger F2, the comb 1 can be supported by a surface contact and the moderate gripping power over the index finger F2 can be secured, and since the index finger F2 also surface-contacts the plurality of second comb tooth recessed parts 6i of the curved shape, power required for supporting the comb can be distributed and the load on the index finger F2 can be reduced.
Thus, in the comb 1 according to the first embodiment, it is easy to put the power into the thumb F1 and the index finger F2 which support the comb 1, and the workability using the comb 1 according to the first embodiment is improved compared with the conventional combs. Note that, although in Figs. 5, 6(a) and 6(b), the case where the other-end edge comb part 4 side is gripped is illustrated, even when the one-end edge comb part 3 side is gripped, the situation becomes similar to that described above, and especially since the short comb tooth 6' adjacent to the one-end edge comb part 3 does not protrude into the space formed by the first recessed part 3h and the first comb tooth recessed parts 6h, the short comb tooth 6' does not disturb that the thumb is fitted into the first recessed part 3h and the first comb tooth recessed parts 6h.
Fig. 7(a) illustrates the way to grip the comb 1 according to the first embodiment when performing a hair set called the "finger wave." In this case, the index finger F2, the middle finger F3, and the third finger F4 support the front side of the comb 1 (the first surface 2c side), and the thumb F1 and the little finger F5 support the back side of the comb 1 (the second surface 2d side). Specifically, the index finger F2, the middle finger F3, and the third finger F4 which support the front side (the first surface 2c side) are fitted at their fingertips into a space formed by the first comb tooth recessed parts 6h of the one perimeter edges 6f of the plurality of comb teeth 6. Thus, moderate gripping can be obtained at each of the fingers F2-F4, and the load on each of the fingers F2-F4 due to the surface contact can be reduced.
Moreover, the thumb F1 and the little finger F5 which support the back side (the second surface 2d side) are fitted into a space formed by the second comb tooth recessed parts 6i of the other perimeter edge 6g of the plurality of comb teeth 6. Here, the thumb F1 contacts the second comb tooth recessed parts 6i in a wide range at its fingertip (a cushion part of the fingertip) to obtain the moderate gripping and reduce the load on the thumb F1; however, regarding the little finger F5, its back-side part contacts the second comb tooth recessed parts 6i.
Fig. 7(b) illustrates a situation of supporting the comb 1 by the little finger F5 when performing the finger wave. The little finger F5 is in a situation where its back-side part is fitted into the second comb tooth recessed parts 6i formed on the other perimeter edge 6g side of the plurality of comb teeth 6. Since the second comb tooth recessed parts 6i have entirely a curved shape, they become in a state where they surface-contact the back-side part of the little finger F5 in a wide range and, thus, it avoids that the power which supports the comb 1 concentrates on one point in the back-side part of the little finger F5, thereby reducing the load on the back-side part of the little finger F5. Thus, when performing a hair set of the finger wave with the comb 1 using lotion with a high viscosity, even if power is put into each of the fingers F1-F5 with the holding way illustrated in Figs. 7(a) and (b), the load to each of the fingers F1-F5 is reduced compared with the conventional combs, and especially for the little finger F5 which supports the comb at the back side of the finger, since the skin is weaker at the back side of the finger than the cushion side of the finger, the merit by the load reduction is large, and further, the merit of the load reduction when the skin has swollen by adhesion of the lotion etc. can largely contribute to the user.
Fig. 8(a) illustrates one example in which a work to dip up a hair bundle using the comb 1 according to the first embodiment is performed, and in this example, it is assumed to be in a situation where the other-end edge comb part 4 side is gripped with the fingers and the hair bundle is dipped up by the one-end edge comb part 3 side and the back side of the comb 1 (the second surface 2d side of the comb main body 2).
Fig. 8(b) illustrates a situation of dipping-up of the hair bundle in the one-end edge comb part 3, where the dipped-up hair bundle h is fitted into the second recessed part 3i formed in the middle part 3c of the other perimeter edge 3g which becomes an upper surface in Fig. 8(b). That is, since the second recessed part 3i is connected with the tip-end side 3a and the root side 3b by the smooth curves in the Y-axis directions, the hair bundle h dipped up by the other perimeter edge 3g (upper surface in Fig. 8(b)) of the one-end edge comb part 3 is guided by the smooth curved surface to the second recessed part 3i, and is naturally fitted into the second recessed part 3i.
Moreover, Fig. 8(c) illustrates a situation of dipping-up of the hair bundle h by one of the comb teeth 6 located near the one-end edge comb part 3. Also in this comb tooth 6, similar to the case of the one-end edge comb part 3 illustrated in Fig. 8(b), the dipped-up hair bundle h is fitted into the second comb tooth recessed part 6i formed in the middle part 6c of the other perimeter edge 6g which is the upper surface. Thus, when the work, such as dipping up the hair bundle using the comb 1 of the first embodiment is performed, since the dipped-up hair bundle is fitted into the space formed by the second recessed parts 3i of the one-end edge comb part 3 and the second comb tooth recessed parts 6i of the respective comb teeth 6 located nearby, the frequency of the hair bundle dipped up by the comb slides down from the tip-end side like the conventional arts decreases, and the efficiency of the work to dip up the hair bundle with the comb can be improved.
Note that, although in the example described above the case where the dipping-up work is performed on the back side of the comb 1 on the one-end edge comb part 3 side is illustrated, it is similarly made difficult for the dipped-up hair bundle to slide down by the first recessed parts 3h and the first comb tooth recessed parts 6h when the dipping-up work is performed on the front side of the comb 1. The same can be said even when the dipping-up work is performed by either the front side or the back side of the comb 1 on the other-end edge comb part 4 side.
Fig. 9 illustrates a situation of a work where the comb 1 is inserted into the hair, and the one-end edge comb part 3 is moved in order to divide the hair into a hair bundle h1 and a hair bundle h2 by the one-end edge comb part 3(for parting, etc.). In this case, the tip end 3v of the one-end edge comb part 3 is made in a state where it abuts on the scalp T, the comb 1 including the one-end edge comb part 3 is moved in the X-axis direction, and the hair is sequentially divided into the hair bundle h1 and the hair bundle h2 by the one-end edge comb part 3.
Here, in the one perimeter edge 3f of the one-end edge comb part 3, since the tip end through-hole 8 having the counter bore 8a is opened in the tip-end side 3a, and the first recessed part 3h is formed in the middle part 3c, the one hair bundle h1 divided by the one perimeter edge 3f does not contact the one-end edge comb part 3 in the parts where the counter bore 8a, the tip end through-hole 8, and the first recessed part 3h are located but contacts the perimeter edge 3f in the part other than these parts. Therefore, compared with the conventional combs where the tip end through-hole 8, the counter bore 8a, and the first recessed part 3h do not exist, the one-end edge comb part 3 according to the first embodiment is decreased largely in the contacting range (contacting area) with the hair bundle h1, and thereby, the contact resistance by the hair bundle h1 to be divided decreases, and the one-end edge comb part 3 becomes easy to smoothly move inside the hair.
The same can be said for the other perimeter edge 3g of the one-end edge comb part 3, and the contacting range (contacting area) of the hair bundle h2 decreases, due to by the tip end through-hole 8 having the counter bore 8a on the tip-end side 3a, and the second recessed part 3i in the middle part 3c. Thus the contact resistance with the hair bundle h2 also decreases in connection therewith, and thereby, it becomes easy for the one-end edge comb part 3 to move in the hair, and the operability and a workability of the comb 1 improve.
Note that, the comb 1 according to the first embodiment is not limited to the form described above, but various modifications may be considered as long as they fall within the scope of the claims. For example, if the work where the one-end edge comb part 3 etc. as illustrated in Fig. 9 is inserting into the hair and move the comb 1 etc. is not considered, it is possible to omit the formation of the tip end through-hole 9 of the other-end edge comb part 4.
Fig. 10 is a front view of the comb 1, and illustrates one example where the range of the plurality of comb teeth 6 surrounded by the one-end edge comb part 3 and the other-end edge comb part 4 is divided into ranges different from the first range 1a and the second range 1b which are illustrated in Fig. 1 so that it is divided into one end range 1c close to the one-end edge comb part 3, a central range 1d corresponding to the central part 2e of the comb main body 2, and the other end range 1e closed to the other-end edge comb part 4. Although in the example described above the first comb tooth recessed parts 6h or the second comb tooth recessed parts 6i are formed in the comb teeth 6 of the entire range, it is possible, as one modification, to omit the formation of one or both of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i in the comb teeth 6 included in the central part 2e. This corresponds to that the central part 2e can secure a user-friendliness similar to the conventional combs.
On the other hand, when the side where the comb 1 is gripped is limited to the other-end edge comb part 4 side, when the one-end edge comb part 3 requires similar user-friendliness of the comb to the conventional arts, or the like, it may be considered to omit the formation one or both of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i of the comb teeth 6 included in the one end range 1c, and further omit the formation of one or both of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i in the comb teeth 6 included in the one end range 1c and the central range 1d.
Similarly, when the side where the comb 1 is gripped is limited to the one-end edge comb part 3 side, or when the other-end edge comb part 4 requires similar user-friendliness of the comb to the conventional arts, or the like, it may be considered to omit the formation of one or both of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i of the comb teeth 6 included in the other end range 1e, and further omit the formation of one or both of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i of the comb teeth 6 included in the other end range 1 e and the central range 1 d.
Moreover, as illustrated in Figs. 7(a) and (b), when supporting the comb 1 at the comb teeth 6 without touching the one-end edge comb part 3 and the other-end edge comb part 4 etc. as the main purpose, it may be considered to omit the formation of one or both of the first recessed parts 3h and the second recessed parts 3i in the one-end edge comb part 3, and similarly in the other-end edge comb part 4, it may be considered to omit the formation of one or both of the first recessed parts 4h and the second recessed parts 4i (the first recessed parts 3h and 4h and the second recessed parts 3i and 4i of the one-end edge comb part 3 and the other-end edge comb part 4 are omissible. The one end dented part 3e and the other-end dented part 4e of the one-end edge comb part 3 and the other-end edge comb part 4 are also omissible).
Further, it can also be considered that, in association with the omission of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i of the comb teeth 6 included in the one end range 1c, or the one end range 1c and the central range 1d, which are described above, the formation of one or both of the first recessed parts 3h and the second recessed parts 3i in the one-end edge comb part 3 is omissible (note that the formation of the one-end dented parts 3e is also omissible). Further, it may be considered that, in association with the omission of the formation of one or both of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i of the comb teeth 6 included in the other end range 1e, or the unconcerned range 1e and the central range 1d, which are described above, the formation of one or both of the first recessed parts 4h and the second recessed part 4i in the other-end edge comb part 4 is omitted (note that the formation of the other end dented part 4e is also omissible).
Moreover, although in the example described above the radius of curvature R2 centering on the deepest part of the first comb tooth recessed part 6h and the second comb tooth recessed part 6i of the comb teeth 6 in the entire range is the same, it is also possible to change the radius of curvature R2 according to the position where each of the comb teeth 6 is formed.
For example, as for the comb teeth 6 located in a part close to the one-end edge comb part 3, the dimension of the radius of curvature R2 of the first comb tooth recessed part 6h and the second comb tooth recessed part 6i is made same as the radius of curvature R1 of the first recessed part 3h and the second recessed part 3i of the one-end edge comb part 3; however, it may be considered that the dimension of the radius of curvature R2 is made gradually smaller as approaching to the central range 1d in the one end range 1c illustrated in Fig. 10 so that the radius of curvature R2 is "0" in the central range 1d, i.e., the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i are not formed, the radius of curvature R2 is generated in the other end range 1e, the radius of curvature R2 increases as approaching to the other-end edge comb part 4, and the dimension of the radius of curvature R2 is again made same as the dimension of the radius of curvature R1 in the part close to the other-end edge comb part 4, etc.
By doing so, the depth of the first comb tooth recessed parts 6h and the second comb tooth recessed parts 6i of the respective comb teeth 6 becomes gradually shallower from the deep state as it goes from the one end side 2a of the comb main body 2 to the other end side 2b via the central part 2e. Here, although the comb tooth recessed parts are once disappeared in the central range 1d, the comb tooth recessed parts are again generated and the depth increases so that the depth gradually changes, and thereby, the fitting condition of the fingers becomes appropriate without causing any step etc. in the space formed by the comb tooth recessed parts of the respective comb teeth 6.
Note that, as the ratio of the one end range 1c, the central range 1d, and the other end range 1e, which are illustrated in Fig. 10, if the entire range of the plurality of comb teeth 6 is assumed to be "1," the ranges 1c-1e are equalized to make each ratio to be "1/3," or the ranges 1c-1e are made unequal so that, for example, the one end range 1c and the other end range 1e are made to be "2/5" and the central range 1d is made to be "1/5." The ratios of these ranges 1c-1e may suitably be set according to the specification, purpose, etc. of the comb 1.
Figs. 11(a) and (b) each illustrates another modification, where Fig. 11(a) illustrates one-end edge comb part 13 of the modification, and although a first curve-shaped recessed part 13h is formed in the middle part 13c of the one perimeter edge 13f in the width direction (Z-axis direction), the middle part 13c of the other perimeter edge 13g is connected with the tip-end side 13a and the root side 13b by flat surfaces, similar to the conventional combs, without forming the second recessed part. Such one-end edge comb part 13 of this modification becomes a suitable modification when a similar user-friendliness of the other perimeter edge 13g to the conventional combs is required in a case where the gripping by the user's finger (e.g., thumb) is considered to be caused only at the one perimeter edge 13f side (when the index finger is allowed to grip normally), a case where the work to dip up the hair bundle is limited to the one perimeter edge 13f side, or the like. Note that, the modification according to Fig. 11(a) is similarly applicable to the other-end edge comb part.
Fig. 11(b) illustrates a comb tooth 16 of one modification, and the comb tooth 16 of this modification is combined with the one-end edge comb part 13 of the modification described above, where, similar to the one-end edge comb part 13 illustrated in Fig. 11(a), although a first comb tooth recessed part 16h is formed in the middle part 16c of one perimeter edge 16f in the width direction (Z-axis direction), the other perimeter edge 16g has the middle part 16c connected with the tip-end side 13a and the root side 13b by flat surfaces, similar to the conventional combs. Such a comb tooth 16 of this modification becomes a suitable modification when a similar user-friendliness of the other perimeter edge 16g to the conventional combs is required in a case where the gripping by the user's finger (e.g., thumb) is considered to be caused only at the one perimeter edge 16f side (when the index finger is allowed to grip normally), a case where the work to dip up the hair bundle is limited to the one perimeter edge 16f side, or the like.
Note that, although Figs. 11(a) and (b) described above illustrate the cases where the first recessed part 13h and the first comb tooth recessed part 16h are formed in the one perimeter edge 13f of the one-end edge comb part 13 and the one perimeter edge 16f of the comb tooth 16, respectively, it is also possible, of course, by replacing the right and left sides, to form the second recessed part and the second comb tooth recessed part in the other perimeter edge 13g of the one-end edge comb part 13 and the other perimeter edge 16g of the comb tooth 16, respectively. Moreover, each modification according to Figs. 11(a) and (b) may also be combined with each modification described based on Fig. 10 described above.
Figs. 12(a) and (b) each illustrates another modification, and one-end edge comb part 23 according to this modification of Fig. 12(a) has a feature in that sharp edges 23r and 23s which are corners are formed in parts where first and second recessed parts 23h and 23i formed in both perimeter edges 23f and 23g of a middle part 23c are connected with a root side 23b, respectively. In order to form such edges 23r and 23s, the first and second recessed parts 23h and 23i are structured such that points of inflection are not provided in the part close to the root side 23b, but curves (curved surfaces) which are convex in ranges located nearby are directly connected with the flat-like perimeter edges 23f and 23g on the root side 23b, centering on the deepest parts. If such edges 23r and 23s are formed, as just illustrated in Fig. 6(a), when the user's finger (e.g., thumb) is fitted into either one of the first and second recessed parts 23h and 23i, one of these edges 23r and 23s is caught by the user's finger, thereby further increasing gripping power and further improving the antiskid function. Note that, the modification according to Fig. 12(a) is similarly applicable to the other-end edge comb part.
Fig. 12(b) illustrates a comb tooth 26 of one modification, and similar to the one-end edge comb part 23 of the modification illustrated in Fig. 12(a), the comb tooth 26 of this modification also has a feature in that sharp edges 26r and 26s which are corners are formed in parts where first and second comb tooth recessed parts 26h and 26i formed in both perimeter edges 26f and 26g of a middle part 26c is connected with a root side 26b. Also in the comb tooth 26 of such a modification, these edges 26r and 26s each increases the gripping power of the user's finger, and further improves the antiskid function in the comb tooth. Note that, the modification illustrated in Fig. 12(a) may be used solely, without combining with the modification illustrated in Fig. 12(b), and similarly, the modification illustrated in Fig. 12(b) may also be used solely, and if it is used solely in this way, the gripping power can be increased partially.
Moreover, although in Figs. 12(a) and (b) described above, the edges 23r and 23s, and the edges 26r and 26s are formed in both the perimeter edges 23f and 23g of the one-end edge comb part 23, and both the perimeter edges 26f and 26g of the comb tooth 26, it is also possible, of course, to form the edge(s) only in one of the perimeter edges. Moreover, each modification according to Figs. 12(a) and (b) may also be combined with each modification according to Fig. 10 or Fig. 11(a) and (b) described above.
Figs. 13(a) and (b) each illustrates another modification, and one-end edge comb part 33 according to the modification of Fig. 13(a) has a feature in that sharp edges 33t and 33u which are corners are formed in parts where first and second recessed parts 33h and 33i formed in both perimeter edges 33f and 33g of a middle part 33c is connected with a tip-end side 33a. In order to form such edges 33r and 33s, the first and second recessed parts 33h and 33i are structured such that points of inflection are not provided in parts close to a tip-end side 33a, but centering the deepest parts, curves (curved surfaces) which are convex within ranges nearby are directly connected with the perimeter edges 33f and 33g on the tip-end side 33a. If such edges 33t and 33u are formed, as just illustrated in Fig. 8(b), when the dipped-up hair bundle h is fitted into either one of the first and second recessed parts 33h and 33i, these edges 33t and 33u are caught by the dipped-up hair bundle h, and the possibility of the dipped-up hair bundle h sliding down from the one-end edge comb part 33 can further be reduced. Note that, the modification according to Fig. 13(a) is similarly applicable to the other-end edge comb part.
Fig. 13(b) illustrates a comb tooth 36 of one modification, and similar to the one-end edge comb part 33 of the modification illustrated in Fig. 13(a), the comb tooth 36 of this modification has a feature in that sharp edges 36t and 36u which are corners are formed in parts where first and second comb tooth recessed parts 36h and 36i formed in both perimeter edges 36f and 36g of a middle part 36c are connected with a tip-end side 36a. Also in the comb teeth 36 of such a modification, the possibility of the dipped-up hair bundle h (see Fig. 8(c)) sliding down from the comb teeth 36 is further reduced by these edges 36t and 36u. Note that, the modification illustrated in Fig. 13(a) may be used solely, without combining with the modification illustrated in Fig. 13(b), and similarly, the modification illustrated in Fig. 13(b) may also be used solely, and if it is used solely in this way, it is useful for further reducing the possibility of the dipped-up hair bundle sliding down.
Moreover, although in Figs. 13(a) and (b) described above, the edges 33t and 33u, and the edges 36t and 36u are formed in both the perimeter edges 33f and 33g of the one-end edge comb part 33, and both the perimeter edges 36f and 36g of the comb tooth 36, it is also possible, of course, to form the edge(s) only in one of the perimeter edges. Moreover, each modification according to Figs. 13(a) and (b) may also be combined with each modification according to Fig. 10 or Figs. 11(a) and (b) described above.
Figs. 14(a) and (b) each illustrates another modification, and one-end edge comb part 43 according to the modification of Fig. 14(a) is such that the structure according to the edges 23r and 23s of the one-end edge comb part 23 according to the modification of Fig. 12(a), and the structure according to the edges 33t and 33u of the one-end edge comb part 33 according to the modification of Fig. 13(a) are combined. That is, one-end edge comb 43 has a feature in that edges 43r and 43s are formed in parts where a first and second recessed parts 43h and 43i formed in both perimeter edges 43f and 43g of a middle part 43c is connected with a root side 43b, and in that edges 43t and 43u are formed in parts where the first and second recessed parts 43h and 43i are connected with a tip side 43a. The one-end edge comb part 43 can exhibit the antiskid function by the edges 43r and 43s on the root side 43b, and the sliding-down of the dipped-up hair bundle is reduced by the edges 43t and 43u on the tip-end side 43a. Note that, the modification according to Fig. 14(a) is similarly applicable to the other-end edge comb part.
Fig. 14(b) illustrates a comb tooth 46 of one modification, and the comb tooth 46 of this modification is also a combination of the structure according to the edges 26r and 26s of the comb tooth 26 according to the modification of Fig. 12(b), and the structure according to the edges 36t and 36u of the comb tooth 36 according to the modification of Fig. 13(b). That is, edges 46r and 46s are formed in parts where first and second comb tooth recessed parts 46h and 46i formed in both perimeter edges 46f and 46g of a middle part 46c is connected with a root side 46b, and edges 46t and 46u are formed in parts where first and second comb tooth recessed parts 46h and 46i are connected with a tip-end side 46a. The comb tooth 46 can exhibit the antiskid function by the edges 46r and 46s on the root side 46b, and can reduce the sliding-down of the dipped-up hair bundle by the edges 46t and 46u on the tip-end side 46a. Note that, the modification illustrated in Fig. 14(a) may be used solely without combining with the modification illustrated in Fig. 14(b), and similarly, the modification illustrated in Fig. 14(b) may also be used solely.
Moreover, although in Figs. 14(a) and (b) described above the edges 43r-43u and the edges 46r-46u are formed in both the perimeter edges 43f and 43g of the one-end edge comb part 43 and both the perimeter edges 46f and 46g of the comb tooth 46, it is also possible, of course, to form the edge(s) only in one of the perimeter edges. Moreover, each modification according to Figs. 14(a) and (b) may also be combined with each modification according to Fig. 10 or Figs. 11(a) and (b) described above.

[Example 2]

Fig. 15(a) is a front view schematically illustrating an entire comb 50 according to a second embodiment of the present invention. The comb 50 according to the second embodiment has a structure so that a bar-like grip part 51 projects from the other-end edge comb part 54. Also in the comb 50 of a type having such a grip part 51, similar to the first embodiment, first recessed parts 53h and 54h are formed in middle parts of one perimeter edges of one-end edge comb part 53 provided to one end side 52a of a comb main body 52, and the other-end edge comb part 54 provided to the other end side 52b of the comb main body 52, respectively, and second recessed parts are formed in middle parts of the other perimeter edges, and also in a plurality of comb teeth 56 surrounded by these one-end edge comb part 53 and the other-end edge comb part 54, first and second comb tooth recessed parts are formed in both perimeter edges, respectively. Note that, in the comb 50, a tip end through-hole 58 is formed in a tip-end side of the one-end edge comb part 53, and a tip end through-hole 59 is formed on a tip-end side of the other-end edge comb part 54.
Thus, although the bar-like grip part 51 projects, since the comb 50 according to the second embodiment has fundamentally a similar structure to the first embodiment, even if the comb is used by the way to grip the comb centering on the one-end edge comb part 53, the antiskid function can be exhibited by a first recessed part etc. of the one-end edge comb part 53, and first comb tooth recessed parts etc. formed in the respective comb teeth 56 near the one-end edge comb part 53, and the sliding-down of the dipped-up hair bundle can be reduced, and even if the comb is used by the way to grip the comb centering on the other-end edge comb part 54, the antiskid function can be exhibited also at this side and the sliding-down of the dipped-up hair bundle can be reduced by a first recessed etc. part of the other-end edge comb part 54, and first comb tooth recessed parts etc. formed in the respective comb teeth 56 near the other-end edge comb part 54. Note that, also in the comb 50, according to the second embodiment, the various modifications described in the first embodiment may also be applicable.
Fig. 15(b) is a front view illustrating an outline of a comb 60 of one modification according to the second embodiment. The comb 60 according to this modification is structured so that a grip part 65, which is not the bar-like but plate-like, projects from the other-end edge comb part 64. Thus, even when the plate-like grip part 65 projects, the comb 60 maintains a similar structure to the first embodiment. That is, in the comb 60, first recessed parts 63h and 64h are formed in middle parts of one perimeter edges of one-end edge comb part 63 provided to one end side 62a of a comb main body 62, and the other-end edge comb part 64 provided to the other end side 62b of the comb main body 62, and second recessed parts are formed in middle parts of the other perimeter edges, and first and second comb tooth recessed parts are formed in both perimeter edges also in a plurality of comb teeth 66 surrounded by the one-end edge comb part 63 and the other-end edge comb part 64, respectively. Note that, in the comb 60, a tip end through-hole 69 is formed in a tip-end side of the other-end edge comb part 64, and a tip end through-hole 68 is formed in a tip-end side of the one-end edge comb part 63. Note that, also in the comb 60 according to this modification, the various modifications described in the first embodiment may also be applicable.

INDUSTRIAL APPLICABILITY

The present disclosure can suitably be used for reducing the load on the fingers which grip the comb, increasing the gripping power, and preventing the hair bundle dipped up by the comb from sliding down from the comb.

DESCRIPTION OF REFERENCE CHARACTERS

1, 50, 60: Comb
2: Comb Main Body
3, 13, 23, 33, 43, 53, 63: One-End Edge Comb Part
3h, 13h, 23h, 33h, 43h, 53h, 63h: First Recessed Part
3i, 23i, 33i, 43i: Second Recessed Part
4, 14, 24, 34, 44, 54, 64: Other-End Edge Comb Part
4h, 54h, 63h: First Recessed Part
4i: Second Recessed Part
6': Short Comb Tooth
6, 16, 26, 36, 46, 56, 66: Comb Teeth
6h, 16h, 26h, 36h, 46h: First Comb Tooth Recessed Part
6i, 26i, 36i, 46i: Second Comb Tooth Recessed Part
7: Through-Hole
8, 9, 58, 59: Tip End Through-Hole

Claims

A comb (1, 50, 60) comprising a comb main body (2, 52, 62) having one edge comb part (3, 53, 63) projecting from one end (2a, 52a, 62a) of the comb main body (2, 52, 62), another edge comb part (4, 54, 64) projecting from another end (2b, 52b, 62b) of the comb main body (2, 52, 62), and a plurality of comb teeth (6, 56, 66) projecting from the comb main body (2, 52, 62) between the one edge comb part (3, 53, 63) and the other edge comb part (4, 54, 64), wherein the one edge comb part (3, 53, 63) is divided into a range on a tip-end side (3a) having a tapered tip (3v) end, a range on the root side (3b) connected with the comb main body (2, 52, 62) and a range of a middle part (3c) which is between the tip-end side (3a) and the root side (3b), and wherein an outer edge surface (3d) forming an edge of a perimeter of the one edge comb part (3, 53, 63) in a front view is concave at the middle part (3c) and convex at the tip-end side (3a) by forming a dented part (3e) at the middle part (3c) in the outer edge surface (3d), characterized in that:
a tip end through-hole (8, 58, 68) penetrating in the width directions of the one edge comb part (3, 53, 63) is formed within the range on the tip-end side (3a), and

a counter bore (8a) is formed around the tip end through-hole (8, 58, 68).
The comb (1, 50, 60) of claim 1, wherein the tip end through-hole (8, 58, 68) and the counter bore (8a) have an elliptical shape, and
the tip end through-hole (8, 58, 68) and the counter bore (8a) are arranged so that a long-axis direction of the elliptical shape is oblique with respect to a projecting direction of the one edge comb part (3, 53, 63).