JP5232811B2 - comb - Google Patents

Description

  The present invention further improves the anti-slip function and the function of removing the liquid adhering to the user's fingertips by providing holes and irregularities in each part of the comb body, and further reduces the rigidity of the comb body and makes it easier for the user to use. It also relates to a comb that is flexible and easy to bend.

  Conventionally, there are various types of combs having functions related to anti-slip and the like. For example, the comb according to Patent Document 1 below has a non-slip function by providing a plurality of convex portions on the side surface portion of the comb body that protrudes the comb teeth, and the comb according to Patent Document 2 includes the comb body. A convex portion (locking portion) that bears an anti-slip function is formed on the side surface portion of the rod-shaped gripping portion that protrudes from the base.

  Also, through-holes that penetrate the comb body are formed in the thickness direction of the comb, and these through-holes function as anti-slip, and liquids such as chemicals and moisture adhering to the user's fingertips can be wiped off at the edges of the through-holes Such combs are disclosed in Patent Documents 3 and 4 below. Furthermore, the following patent document 5 discloses a comb in which a groove or a through-hole provided in a side surface portion of a comb body is filled with a material having a high coefficient of friction to form a non-slip portion.

Utility Model Registration No. 3114881 Utility Model Registration No. 3107399 JP-A-9-131215 Utility Model Registration No. 2584426 JP 2005-304720 A

  Hairdressers and barbers who are comb users generally have a comb in a manner that is suitable for them, and often use different ways of holding the comb depending on the hair styling situation. For example, how to hold the index finger against the back side of the comb body (the part opposite to the side where the comb teeth are provided), how to hold the finger against the side part of the comb body, and the like can be appropriately used by the user.

  Among the combs disclosed in Patent Documents 1 to 5 described above, there is no comb having a function such as anti-slip on the back surface of the comb body. Therefore, especially for the user who holds the index finger against the back portion of the comb body, the combs disclosed in Patent Documents 1 to 5 described above have insufficient functions such as slip prevention in the back portion.

  In addition, for a user holding a comb by placing his / her finger on the side surface of the comb body, functions such as slip prevention are provided by the convex portions shown in Patent Documents 1 and 2 or through holes shown in Patent Documents 3 and 4. However, when considering a practical use situation, when holding a comb, the user's fingertip applied to the side portion is placed at the position of the convex portion shown in Patent Literatures 1 and 2, or the through hole shown in Patent Literatures 3 and 4. Consideration for matching is necessary, and the user feels annoying when holding a comb. Furthermore, a user, a hairdresser / barber, may use a conventional comb by bending the comb along the shape of the head of the person to be cut or styling when cutting or styling hair. Has a problem that the rigidity of the comb body is basically high and difficult to bend. In general, the shape of the comb is roughly classified into a type in which a rod-shaped gripping portion protrudes from the comb body and a type in which no protruding gripping portion is provided, and the user can select these types of combs depending on the usage situation. Will be used properly.

The present invention has been made in view of such a problem, and even when a user holds a comb by placing his / her finger on the side surface of the comb body, the fingertip is easily aligned to a predetermined position that functions as a slipper. An object is to provide a comb that can be used.
Furthermore, an object of the present invention is to provide a comb in which the above-described functions are secured and the overall rigidity of the comb is lowered so that the user can easily bend it in accordance with the use situation.

  In order to solve the above problems, the comb according to the present invention is a comb in which a plurality of comb teeth are provided on a comb body, and a plurality of concave portions and convex portions are provided on both side surfaces corresponding to the thickness direction of the comb body. The positions of the plurality of concave portions and convex portions formed on one side surface and the positions of the plurality of concave portions and convex portions formed on the other side surface are alternately formed in the longitudinal direction of the comb body. The comb body is formed with a plurality of through holes penetrating in the thickness direction of the comb body so that an opening peripheral edge is located in each of the plurality of concave portions. To do.

  Further, the comb according to the present invention is characterized in that tapered counterbore portions are formed on the peripheral edges of the openings on both side surfaces of the through hole.

  Furthermore, the comb according to the present invention is characterized in that a plurality of concave portions and convex portions are alternately formed on the back surface of the comb body.

  Furthermore, in the comb according to the present invention, the positions of the plurality of concave portions and the plurality of concave portions are the same in the longitudinal direction of the comb body, and the plurality of convex portions and the plurality of convex portions are arranged. These positions are the same in the longitudinal direction of the comb body.

  In the present invention, a curved surface composed of a plurality of irregularities is formed on the side surface portion of the comb body, so that when the finger is applied to the side surface portion and the comb is gripped, the fingertip becomes easy to become familiar with the irregularities on the curved surface. However, the anti-slip function can be exhibited on the curved surface without paying particular attention to the position of the fingertip.

In the case where the user's fingertip is placed in the concave portion with the curved surface to exhibit the anti-slip function, the size of the concave portion and the interval between the concave and convex portions are appropriately set so that the fingertip can be stored in the concave portion. Become.

  In the present invention, since the curved surface is formed on the side surface portion of the comb body and the through hole is formed so as to open to the concave portion of the curved surface, the fingertip of the user is guided by the curved concave shape. It will naturally be guided to the position of the through hole. Therefore, when using a comb with a finger placed on the side surface of the comb body, the user's fingertip is naturally guided to the through-hole on the side surface, and the anti-slip function is easily exhibited without any special attention from the user. In addition, the liquid attached to the fingertips can be easily wiped off.

  In the present invention, by forming the curved surface on the side surface of the comb body, the anti-slip function can be exhibited on the curved surface without the user paying particular attention to the position of the fingertip.

  Further, in the present invention, a curved surface is formed on the side surface portion of the comb body, and a through hole is formed in a concave portion of the curved surface, thereby penetrating the fingertip that holds the comb with the concave shape of the curved surface. Guide to the hole to make it easier to use functions such as anti-slip.

It is a perspective view of the comb concerning the embodiment of the present invention. (A) is a principal part enlarged view which concerns on principal parts, such as a comb main body and a comb tooth seen from the side surface direction, (b) is principal part sectional drawing in the AA of FIG. (A) is a principal part enlarged view which concerns on principal parts, such as a comb main body seen from the back direction, (b) is principal part sectional drawing in the BB line of Fig.2 (a). (A) is an expanded sectional view which shows the state which applied the finger | toe to the back part of the comb main body, (b) is an expanded sectional view which shows the state which wipes a fingertip with a hole. It is principal part sectional drawing which shows the state which applied the finger | toe to the side part of the comb main body. It is the schematic which shows the bending state of a comb. It is the comb which concerns on another embodiment of this invention, (a) is an external view from the side surface direction, (b) is an external view from the back direction. It is a perspective view of the comb concerning the modification of the present invention. It is a perspective view of the comb concerning another modification of the present invention. It is a perspective view of the comb concerning another modification of the present invention. It is a perspective view of the comb concerning another modification of the present invention.

  FIG. 1 is a perspective view showing a comb 1 according to an embodiment of the present invention. The comb 1 of the present embodiment is an integrally molded product made of synthetic resin, and is a type of comb having a rod-shaped gripping portion 5 that protrudes toward one side in the longitudinal direction. The comb 1 has a comb body 2 in which a plurality of comb teeth 15 are provided in parallel. The comb body 2 is formed with holes 8 and through holes 9, and the surface of the comb body 2 has an uneven surface 6 and a curved surface. The feature is that the surface 7 and the like are formed. Hereinafter, the comb 1 according to the first embodiment will be described in detail. The X direction in FIG. 1 corresponds to the longitudinal direction of the comb 1 (the same direction as the longitudinal direction of the gripping portion 5), and the Y direction is the thickness direction of the comb 1 (the width direction of the comb 1; the direction orthogonal to the X direction). ), The Z direction corresponds to the protruding direction of the comb teeth 15 (the direction perpendicular to the X direction and the Y direction), and these X, Y, and Z directions are the same direction in other drawings as well. Is shown.

  As shown in FIGS. 1, 2 (a), 2 (b), etc., the comb 1 has a tip protector 3 (a portion wider than the comb teeth 15) that protects the comb teeth 15 on the tip side of the rod-shaped comb body 2. Is protruded in the same direction as the comb teeth 15, and a base portion 4 that is a protruding portion of the grip portion 5 is provided on one end side 2 e of the grip portion 5. The base 4 has a substantially triangular shape in the viewing direction shown in FIGS. 2 (a) and 2 (b), and has a form in which a grip 5 is projected from a location corresponding to the apex of the triangle.

  The comb body 2 has an uneven surface 6 formed on the back surface 2a (the surface opposite to the side 2d on which the comb teeth 15 are provided). The concave / convex surface 6 includes a plurality of concave portions 6a and convex portions 6b. The concave portions 6a and the convex portions 6b are gently curved along the curved surface of the user's fingertip, and the user's fingertips are formed in the concave portion 6a. The interval between the vertices of the adjacent convex portions 6b is set so as to fit (in this embodiment, the interval P1 between the vertices of the adjacent convex portions 6b is set to about 10 mm). Further, the comb body 2 has a hole 8 for each recess 6a so as to open to each recess 6a. The hole 8 is formed so that the opening shape is an ellipse whose major axis is the X direction, and the hole depth is set to a dimension that reaches and communicates with a through hole 9 described later (FIG. 2B). )reference).

  Further, as shown in FIGS. 1, 3A, 3B, etc., the comb body 2 has a plurality of concave portions 7a and convex portions on the side surface portions 2b, 2c corresponding to the thickness direction (Y direction). Each of the curved surfaces 7 having 7b is formed. The curved surface 7 is such that each of the plurality of concave portions 7a is in the same position in the X direction as each of the concave portions 6a in the back surface portion 2, and each of the plurality of convex portions 7b is in the same position in the X direction as the convex portion 6b of the back surface portion 2. (For example, the interval P2 between the adjacent convex portions 7b is the same as the interval P1 between the adjacent convex portions 6b). The curved surface 7 is also formed with a gentle curved surface so that the user's fingertip can be guided to the concave portion 7b, similarly to the concave-convex surface 6 of the back surface portion 2a.

  Furthermore, the comb body 2 has a through-hole 9 penetrating the comb body 2 in the thickness direction so as to open at the concave portions 7a of the side surface portions 2b and 2c on both sides. The through-hole 9 has an elliptical hole shape (the major axis direction of the ellipse is the X direction), and an elliptical counterbore 9a (see FIG. 3B) is formed at each of the openings in the side surfaces 2b and 2c. Yes. Thus, the comb body 2 is provided with a plurality of holes 8 and through-holes 9, so that the rigidity is reduced as compared with the case where these holes 8 and through-holes 9 are not provided. By making the hole directions (hole depth directions) of 9 different, it is possible to flexibly deform when external force is applied from various surrounding directions. As described above, the through hole 9 communicates with the hole 8 of the back surface portion 2a.

  Further, the base 4 formed on the end side 2e provided with the grip portion 5 of the comb body 2 forms a wavy curved side portion 10 on the lower side portion 4a corresponding to the tip side of the comb tooth 15, and on both sides. A base through hole 11, a first groove part 12, and a second groove part 13 are formed in the side surface part (see FIGS. 1 and 2, etc.). The base through-hole 11 has a long hole shape along the lower side 4 a of the oblique side, and penetrates in the thickness direction of the comb body 2. Further, the first groove portion 12 has a shape along the base through hole 11 and is longer than the base through hole 11 toward the side where the grip portion 5 is provided. Further, the second groove portion 13 has a shape along the first groove portion 12 and is longer than the first groove portion 12. The base portion 4 does not penetrate through the groove portions 12 and 13 in order to ensure the flexibility as much as possible while ensuring the strength necessary to project the grip portion 5. Further, the base 4 can be flexibly deformed when receiving an external force by the base through-hole 11, the first groove 12, and the second groove 13.

  The plurality of comb teeth 15 projecting from the comb main body 2 has only one projecting dimension adjacent to the tip protector 3 and the projecting dimension shorter than the others, and the interval between the comb teeth 15 is the base 4. As it approaches the tip protection part 3, it is made shorter. By doing in this way, when a user uses the comb 1, the hair of the hair-styling object can be appropriately lifted even with the comb teeth 15 on the distal end side.

  Next, the usage situation by the user of the comb 1 of this embodiment will be specifically described with reference to FIGS. First, as shown in FIG. 4A, a case where the user uses the comb 1 by placing the index finger U on the back surface 2a of the comb body 2 will be described. When the user puts the index finger U against the back surface 2a, the fingertip is naturally positioned in the recess 6a by being guided by the oblique sides of the two protrusions 6b located on both sides of the one recess 6a on the uneven surface 6. Further, since the hole 8 is opened in the recess 6 a, the fingertip of the index finger U located in the recess 6 a is caught by the hole edge 8 a of the hole 8. Therefore, the index finger U is gripped by the convex portions 6b on both sides of the concave portion 6a and the fingertip is hooked by the hole edge 8a. Therefore, the comb 1 has a better anti-slip function with respect to the index finger than the conventional comb. Demonstrated.

  Further, in the state shown in FIG. 4A, the fingertip of the index finger U is positioned so as to close the hole 8, and the hole 8 communicates with the through hole 9. Since the fingertip touches the outside air, even when the index finger U wetted with a liquid such as a chemical solution or moisture is applied to the back surface 2a of the comb body 2, the fingertip is easier to dry than in the past.

  Further, when the user desires to positively remove the liquid adhering to the index finger U, the fingertip is wiped with the hole edge 8a of the hole 8 as shown in FIGS. 4 (a) to 4 (b). When the index finger U is moved, the liquid is removed from the fingertip and flows into the hole 8. In addition, since the liquid part which flowed into the hole 8 can flow out from the through-hole 9 which communicates at the time of cleaning the comb 1, the liquid part does not remain in the hole 8, and the hole 8 of the comb 1 is cleaned. Can be kept in.

  On the other hand, as shown in FIG. 5, in the case of a user holding the comb 1 by placing the finger U on the side surface portion (for example, one side surface portion 2 b) of the comb body 2, the user's fingertip is 1 of the curved surface 7. Guided by the hypotenuses of the two convex portions 7b adjacent to both sides of the two concave portions 7a, the natural portions are positioned in the concave portions 7a. Further, since the through hole 9 is opened in the concave portion 7 a, the fingertip is caught on the hole edge of the through hole 9. Therefore, the user's finger U is gripped by the convex portions 7b on both sides of the concave portion 7a, and the fingertip is hooked by the through hole 9, so that the side surface of the comb body 2 is also less slippery than the conventional comb. The function has been improved.

  In the state shown in FIG. 5, the user's finger is positioned so as to close the through-hole 9, and therefore the user's finger U touches the outside air through the through-hole 9, so that the finger wet with a liquid such as a chemical solution or moisture Even when U is applied to the side surface 2b of the comb body 2, the fingertips are easily dried.

  Furthermore, as shown in FIG. 6, a case is considered where an external force is applied to the comb 1 so as to bend the end portion 5a of the grip portion 5 in the clockwise direction, for example, in the direction of the XY plane. In this case, the comb body 2 and the base portion 4 are flexibly deformed because the rigidity is reduced by the hole 8, the through hole 9, and the base through hole 11. Therefore, when the user bends the comb 1 in accordance with the curvature of the head of a person who is a hair styling target, the comb 1 of the present embodiment is easier to bend than the conventional comb. Moreover, since the comb 1 has different hole directions of the hole 8 and the through-hole 9, the comb 1 is easily bent flexibly in directions other than the direction of the view relating to the XY plane, and is easy for the user to use. The comb 1 (the comb body 2 or the base 4) can be bent freely in the direction.

  The contents according to the present invention are not limited to the comb 1 according to the above-described embodiment, but can be applied to other types of combs, and various modifications can be considered. For example, in the comb 1 shown in FIG. 1 and the like, the grip portion 5 is formed integrally with the comb body 2 and the base portion 4 and the like. A comb according to the present invention may be formed by performing insert molding (outsert molding) on the comb body 2 and the base 4 made of a synthetic resin material (the gripping portion of such a metal bar is described later). (It can also be applied to various types of modified examples having a gripping portion (types shown in FIGS. 8 to 11 and the like)).

  7A and 7B show a case where the content according to the present invention is applied to a comb 20 of a type that does not have a protruding gripping portion. The comb 20 has a first protection part 23 (equivalent to the tip protection part 3 in FIG. 1) protruding from one side of the elongated comb body 22 and a second protection part 21 (first 1 having a shape symmetrical to that of the protective part 23). Further, the comb 20 has a plurality of thick first comb teeth 35 protruding in parallel in the range from the central position 22f along the longitudinal direction of the comb body 22 to the first protection portion 23, while the central position 22f. In the range from the first protection tooth 21 to the second protection part 21, a plurality of fine second comb teeth 36 that are narrower than the first comb teeth 35 are provided in parallel in such a manner as to be narrower than the interval between the first comb teeth 35.

  The comb 20 has a plurality of concave portions 26a and convex portions 26b in the back surface portion 22a of the comb body 20 in the range excluding the central range portion 22g corresponding to the central position 22f, like the comb 1 shown in FIG. An uneven surface 26 is formed, and a hole 28 is formed so as to open into the recess 26a. Further, the comb 20 has a curved surface 27 composed of a plurality of concave portions 27 a and convex portions 27 b in the range excluding the central range portion 22 g at the side surface portions 22 b and 22 c on both sides of the comb body 20. The through hole 29 is formed so as to open to the concave portion 27a.

  The comb 20 having such a configuration has an improved anti-slip function as in the above-described comb 1 and can appropriately remove the liquid component adhering to the user's fingertip. The comb body 20 can be flexibly bent. Note that the first comb teeth 35 are mainly used by making the comb 20 a flat plane without providing the concave and convex surfaces 26 of the back surface portion 22a and the curved surfaces 27 of the side surface portions 22b and 22c in the central range portion 22g. When switching between the case of using the second comb teeth 36 and the case of using the second comb teeth 36 as a main, the user can easily change the comb 20 in the central range portion 22g.

  A comb 40 shown in FIG. 8 shows a modification of the comb 1 shown in FIG. The comb 40 is a comb of a type in which a rod-shaped grip 45 is projected from a base 44 provided on a comb main body 42 projecting a plurality of comb teeth 41 in parallel, like the comb 1. The concave-convex surface 46 having a plurality of concave portions 46a and convex portions 46b is formed, and a hole 48 is formed so as to open into the concave portion 46a (the curved surfaces are not formed on the side surface portions 42b, 42c). The comb 40 is a model suitable for a user who uses an index finger on the back surface portion 42a. The two convex portions 46b adjacent to the concave and convex surface 46 guide the user's finger to the concave portion 46a. 46b and the hole 48 of the recess 46a provide an excellent grip function and allow the fingertip to be wiped by the hole 48.

  As a further modification example based on the comb 40 of FIG. 8, it is conceivable to form only a plurality of through-holes penetrating the comb body 42 in the width direction in the side surfaces 42b and 42c of the comb body 42. Furthermore, these through holes may communicate with the holes 48. As yet another modification, it is conceivable that only the curved surface (see the curved surface 7 shown in FIGS. 1 and 3) is formed on at least one of the side surfaces 42b and 42c of the comb body 42 (FIG. 8). When the curved surface is formed by the comb 40, no through hole is provided.)

  Moreover, the comb 50 of FIG. 9 shows another modification regarding the comb 1 shown in FIG. 1 etc., and is further simplified in structure than the comb 40 of FIG. Specifically, the comb 50 protrudes the grip portion 55 from a base portion 54 provided on a comb body 52 that protrudes from the comb teeth 51, and a plurality of holes 58 are formed at a predetermined interval (for example, a pitch of about 10 mm) on the back surface portion 52a. It is formed with a gap. In the comb 50 of this modified example, the back surface portion 52a is not formed with an uneven surface, and the side surface portions on both sides are not formed with curved surfaces, but the fingertip of the user's index finger is inserted in each hole 58 of the back surface portion 52a. Since it can be hooked, a non-slip function can be realized with a simple configuration, and the liquid attached to the fingertips can be removed by wiping the fingertips with the holes 58.

  As a further modification based on the comb 50 in FIG. 9, it is conceivable to form a plurality of through holes only in the side surface portion of the comb body 52 in the same manner as the comb 41 in FIG. It is also conceivable that only the curved surface is formed on at least one of the side surfaces of the comb body 52 (when the curved surface is formed, there is no through hole).

  Furthermore, the comb 60 of FIG. 10 shows still another modification example of the comb 1 shown in FIG. The comb 60 according to this modified example projects a gripping portion 65 from a base portion 64 provided on a comb body 62 projecting comb teeth 61, and has a plurality of concave portions 67 a and convex portions on side surfaces 62 b and 62 c on both sides of the comb body 62. A curved surface 67 composed of a portion 67b is formed, and a through hole 69 is formed so as to open to the concave portion 67a. Note that the comb 60 does not form both holes and irregular surfaces on the back surface portion 62a.

  Such a comb 60 is a model suitable for a user who holds a comb by placing a finger on the side surface portion 62 b (or the side surface portion 62 c) of the comb body 62, and two adjacent convex portions 67 b of the curved surface 67. Thus, the user's finger is guided to the concave portion 67a located between them, and an excellent grip function is exhibited by the convex portion 67b and the through hole 69 of the concave portion 67a. But I'm trying to expose my fingertips to the open air. The curved surface 67 of the comb 60 can be provided only on one of the side surfaces (only the side surface 62b or only the side surface 62c) in addition to the side surfaces 62b and 62c on both sides ( The same applies to the comb 1 in FIG. 1 and the like and the comb 20 in FIGS. 7A and 7B). Further, as a further modification example based on the comb 60 of FIG. 10, it is conceivable to form only a concavo-convex surface (see the concavo-convex surface 6 in FIGS. 1 and 2) on the back surface 62a of the comb body 62. Thus, in the case where only the uneven surface is formed, a pattern in which the through hole 69 is omitted is also conceivable.

  Furthermore, the comb 70 of FIG. 11 shows still another modification example of the comb 1 shown in FIG. 1 and the like, and the comb 70 of this modification is formed from the comb 1 shown in FIG. The through-hole 9 in the uneven surface 6 and the side portions 2a and 2c is omitted. That is, the comb 70 protrudes from the base 74 provided on the comb main body 72 projecting the comb teeth 71, and a plurality of concave portions 77 a and convex portions 77 b are formed on the side surfaces 72 b and 72 c on both sides of the comb main body 72. A curved surface 77 is formed, and a plurality of holes 78 are formed in the back surface portion 72 a of the comb body 72. Even with such a simple configuration, the anti-slip function can be exhibited by the hole 78 for the back surface portion 72a, and the anti-slip function can be exhibited by the curved surface 77 for the side surface portions 72a and 72b. Note that it is of course possible to form a through hole in the concave portion 77a of the curved surface 77 also for the comb 70 of FIG.

  Further, the contents according to the various modifications shown in FIGS. 8 to 11 described above are naturally applicable to a comb of the type shown in FIGS. 7A and 7B (a type in which no gripping portion is protruded).

  By providing holes and irregularities in each part of the comb body, the anti-slip function and the function of removing the liquid adhering to the user's fingertips have been further improved, and further, the rigidity of the comb body has been lowered, making it easier to bend flexibly. Therefore, it is possible to improve the efficiency of work relating to hairdressing in the barber / beauty field and the like.

1, 20, 40, 50, 60, 70 Comb 2, 22, 42, 52, 62, 72 Comb body 2a, 22a, 42a, 52a, 62a, 72a Back surface 2b, 2c, 22b, 22c, 42b, 42c, 62b, 62c, 72b, 72c Side surface portion 4, 44, 54, 64, 74 Base portion 5, 45, 55, 65, 75 Grasping portion 6, 26, 46 Uneven surface 6a, 26a, 46a Recessed portion 6b, 26b, 46b Convex portion 7, 27, 67 Curved surface 7a, 27a, 67a, 77a Concave portion 7b, 27b, 67b, 77b Convex portion 8, 28, 48, 58, 78 Hole 9, 29, 69 Through hole 11 Base through hole 15, 41, 51, 61, 71 comb teeth

Claims (4)

In a comb provided with a plurality of comb teeth on the comb body,
On both side surfaces corresponding to the thickness direction of the comb body, a plurality of concave portions and convex portions are alternately formed,
The positions of the plurality of concave portions and convex portions formed on one side surface and the positions of the plurality of concave portions and convex portions formed on the other side surface are the same position in the longitudinal direction of the comb body,
The comb body is characterized in that a plurality of through holes penetrating in the thickness direction of the comb body are formed in the comb body so that an opening periphery is located at each of the plurality of concave portions.   The comb according to claim 1, wherein a tapered counterbore part is formed on the opening periphery of both side surfaces of the through hole.   The comb according to claim 1 or 2, wherein a plurality of concave portions and convex portions are alternately formed on a back surface of the comb main body. The positions of the plurality of recesses and the plurality of recesses are the same in the longitudinal direction of the comb body,
The comb according to claim 3, wherein the plurality of convex portions and the positions of the plurality of convex portions are in the same position in the longitudinal direction of the comb body.

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