Hair brush

Abstract

Provided is a hair comb capable of guiding more wind to a combing position. A hair comb (1) has a base portion (10) and a plurality of pins (51) erected from a front surface (10A) of the base portion (10). The base portion (10) is formed with a ventilation path (40) that penetrates from a rear surface (10B) to the front surface. Furthermore, the opening size of the rear end of the ventilation path (40) is larger than the opening size of the front end.

Description

Technical Field

[0001] This invention relates to a hair comb. Background Technology

[0002] Patent Document 1 discloses a conventional hairbrush. This hairbrush has a main body with a first side and a second side formed on both sides, and a plurality of pins erected from the first side of the main body. The main body has a guide hole extending from the first side to the second side. With this structure, the hairbrush can, for example, guide the airflow from a hair dryer to the combing position, i.e., the position of the pin on the first side, through the guide hole while combing the hair using the hair dryer.

[0003] Existing technical documents Patent documents Patent Document 1: Utility Model Registration No. 3229123 Summary of the Invention The problem the invention aims to solve This type of hairbrush is intended to direct more airflow from the hairdryer to the combing area.

[0004] The present invention was made in view of the above-mentioned prior art, and its object is to provide a hair comb that can direct more airflow to the combing position.

[0005] means for solving problems A hair comb according to one embodiment of the present invention has: a base portion; and a plurality of pins erected from the front surface of the base portion; the base portion has a ventilation passage extending from the rear surface to the front surface, wherein the opening size at the rear end of the ventilation passage is larger than the opening size at the front end.

[0006] The opening at the rear end of the air passage through the base of this hairbrush is larger than the opening at the front end. Therefore, compared to a case where the opening at the rear end of the air passage is the same size as the opening at the front end, this hairbrush can more easily draw air into the air passage from the opening at the rear end.

[0007] In another embodiment of the present invention, the hair comb has: a base portion; and a plurality of pins erected from the front surface of the base portion; the base portion has a ventilation passage extending from the rear surface to the front surface, and at the rear end of the wall surface of the base portion forming the ventilation passage, the wall surface of the center side of the base portion is located at a position further rear than the outer wall surface of the base portion.

[0008] In this hairbrush, the wall surface of the base portion forming the air passage is positioned further back on the central side of the base portion than on the outer side of the base portion. For example, when air from a hair dryer is blown from the outer side of the hairbrush towards the central side, the airflow can be caught by the wall surface on the central side. Therefore, compared to the case where the rear end position of the wall surface of the base portion forming the air passage is equal on the central side and the outer side of the base portion, the hairbrush of other embodiments of the present invention more easily introduces air into the air passage from the opening at the rear end.

[0009] Therefore, the hair comb of the present invention can direct more airflow to the combing area. Attached Figure Description

[0010] Figure 1 This is a front view showing the hair comb of Embodiment 1.

[0011] Figure 2 This is a rear view showing the hair comb of Embodiment 1.

[0012] Figure 3 This is a side view showing the hair comb of Embodiment 1.

[0013] Figure 4 This is a top view showing the hair comb of Embodiment 1.

[0014] Figure 5 This is a bottom view showing the hair comb of Embodiment 1.

[0015] Figure 6 yes Figure 1 Sectional view along line VI-VI.

[0016] Figure 7 yes Figure 1 Sectional view along line VII-VII.

[0017] Figure 8 This diagram illustrates the function of the hair comb in Example 1 and schematically shows the equivalent of... Figure 1 The main part of the end face of the VI-VI line.

[0018] Figure 9 This diagram illustrates the function of the hair comb in Example 1 and schematically shows the equivalent of... Figure 1 The main part of the end face of line VII-VII.

[0019] Figure 10 This diagram illustrates the function of the hair comb in Example 1 and schematically shows the process from... Figure 8 The state shown is the state after the connecting part undergoes elastic deformation.

[0020] Figure 11 This diagram illustrates the function of the hair comb in Example 1 and schematically shows the process from... Figure 9The state shown is the state after the connecting part undergoes elastic deformation. Detailed Implementation

[0021] First, embodiments of the present invention are listed and described. Any combination of the following embodiments without causing contradiction is also included in the specific embodiments.

[0022] [1] A hair comb according to one embodiment of the present invention includes: a base portion; and a plurality of pins erected from the front surface of the base portion; the base portion forms a ventilation passage extending from the rear surface to the front surface, wherein the opening size at the rear end of the ventilation passage is larger than the opening size at the front end. The rear end opening of the ventilation passage extending through the base portion of this hair comb is larger than the front end opening. Therefore, compared to the case where the rear end opening size is equal to the front end opening size, this hair comb more easily introduces air into the ventilation passage from the rear end opening. Furthermore, since the front end opening of the ventilation passage is smaller than the rear end opening, this hair comb can blow air out of the ventilation passage at a flow rate faster than the inflow velocity.

[0023] [2] A hairbrush according to another embodiment of the present invention includes: a base portion; and a plurality of pins erected from the front surface of the base portion; the base portion forms a ventilation passage extending from the rear surface to the front surface, and at the rear end of the wall surface of the base portion forming the ventilation passage, the wall surface on the central side of the base portion is located further rearward than the wall surface on the outer side of the base portion. In this hairbrush, the wall surface on the central side of the base portion forming the ventilation passage is located further rearward than the wall surface on the outer side of the base portion. For example, when blowing air from a hair dryer from the outer side of the base portion toward the central side, the flow of air can be received by the wall surface on the central side. Therefore, compared to the case where the rear end position of the wall surface of the base portion forming the ventilation passage is equal inside and outside the base portion, this hairbrush can more easily introduce air into the ventilation passage from the opening at the rear end. In addition, according to this structure, even when blowing air from a hair dryer from any direction outside the base portion, the air can be received by the wall surface on the central side of the base portion and introduced into the ventilation passage.

[0024] [3] In any of the hairbrushes described in [1] and [2] above, the length of the wall of the base portion forming the ventilation passage in the front-rear direction is such that the wall on the central side of the base portion is longer than the wall on the outer side of the base portion. Compared to the case where the front-rear length of the wall of the base portion forming the ventilation passage is equal, this hairbrush can position the front opening of the ventilation passage formed by the wall with a longer front-rear length closer to the scalp. Therefore, this hairbrush can deliver air to a position closer to the scalp near the center in a direction orthogonal to the front-rear direction of the hairbrush. For example, based on the combination of the structure described in [2] above, where the wall on the central side of the wall of the base portion forming the ventilation passage is located behind the wall on the outer side of the base portion, by adopting a structure in which the length of the wall on the central side of the base portion is longer than that on the outer side, and the front end position of the wall on the central side of the front surface is close to the same position as the front end position of the outer wall, it is possible to equalize the distance between the opening position at the front end and the scalp.

[0025] [4] In any of the hair combs described in [1] to [3] above, the rear end of the wall of the base portion forming the air passage is inclined toward the outer side of the base portion. For example, when blowing air from a hair dryer toward the center side from the outside of the hair comb, the hair comb can be guided by the wall of the center side that receives the air so that the airflow direction is forward.

[0026] [5] In any of the hair combs described in [1] to [4] above, a ridge-like undulation extending in the front-back direction is formed on the wall surface of the base portion forming the ventilation passage. The hair comb guides and straightens the airflow flowing in the ventilation passage into a front-back airflow through the ridge-like undulation. Therefore, the hair comb can efficiently direct the airflow introduced into the ventilation passage forward.

[0027] Another embodiment of the present invention is listed and described. Furthermore, as a method for carrying out the present invention, it also includes any combination of any of the embodiments described below with any of the embodiments described above, within a scope that does not create contradictions.

[0028] [6] Another embodiment of the hairbrush of the present invention includes: a base portion; and a plurality of pins erected from the front surface of the base portion; the base portion includes: a first base portion; a second base portion surrounding the first base portion circumferentially in a direction intersecting the front-rear direction; and a flexible connecting portion connecting the first base portion and the second base portion. The hairbrush forms a space between the first base portion and the second base portion in the base portion. Therefore, the hairbrush allows air from a hair dryer to flow from the rear surface side to the front surface side through this space, for example, when combing hair, thereby ensuring ventilation between the front and rear surface sides. Furthermore, the connecting portion between the first base portion and the second base portion of the hairbrush is flexible. Therefore, the first base portion and the second base portion can move independently, with the connecting portion as the boundary. As a result, the hairbrush allows the pins erected from the first base portion and the pins erected from the second base portion to easily contact the scalp, thereby improving the fit.

[0029] [7] In the hair comb of [6] above, the first base portion forms a through hole that extends in the front-to-back direction. In this case, the hair comb can not only pass through the space between the first base portion and the second base portion, but also through the through hole in the front-to-back direction.

[0030] [8] In any of the hair combs described in [6] and [7] above, the connecting portion is a first connecting portion, and the base portion has: a third base portion that circumferentially surrounds the second base portion in a direction intersecting the front-back direction; and a second connecting portion that is elastically deformable and connects the second base portion and the third base portion. In this case, compared to the case where the base portion only has a first base portion, a second base portion, and a first connecting portion, the shape of the pin can be more widely conformed to the scalp, and the fit can be further improved.

[0031] [9] In the hair comb of [8] above, the first connecting part and the second connecting part are positioned at the same location in the circumferential direction. In this case, since the elastic deformation directions of the first connecting part and the second connecting part can be aligned, the movement directions of the first base part and the second base part can be aligned in the same direction, thereby further enhancing the fit.

[0032]

[10] Any of the hair combs in [8] and [9] above has a handle portion extending from the outer edge of the third base portion in a direction intersecting the front-rear direction, and the first connecting portion and the second connecting portion are positioned in the circumferential direction at the same position as the handle portion. In this case, compared with the case where each connecting portion is located away from the handle portion, it is easier to apply a force to elastically deform it, thereby further improving the fit.

[0033] <Example 1> While referring to the appendix Figure 1 The following description describes a hairbrush according to Embodiment 1, which embodies the present invention. For convenience, the directions in the hairbrush are defined as follows: the front-back direction is defined as parallel to the protruding direction of the pins; the direction of the protruding end side of the pins is defined as front; and the direction of the base side is defined as back. For the up-down and left-right directions in the hairbrush, the extension direction of the handle is defined as the up-down direction in a direction orthogonal to the front-back direction; and the directions orthogonal to both the front-back and up-down directions are defined as left-right directions. In the figures, the X-axis, Y-axis, and Z-axis represent the front-back, left-right, and up-down directions, with the positive X-axis direction being front, the positive Y-axis direction being left, and the positive Z-axis direction being up. Furthermore, these directions do not specify the actual direction during use of the hairbrush.

[0034] like Figures 1 to 5 As shown, the hair comb 1 of Embodiment 1 has a base portion 10, a comb portion 20, and a handle portion 30. From a main viewing angle observed from one side of the base portion 10, i.e., the comb surface 10A, the base portion 10 has an elliptical shape extending in the vertical direction as its major axis. The comb surface 10A corresponds to the front surface of the base portion of the present invention. The side of the base portion 10 opposite to the comb surface 10A is the back surface 10B. The back surface 10B corresponds to the rear surface of the base portion of the present invention.

[0035] like Figure 6 As shown, the comb surface 10A is formed into a curved surface shape that is concave from the center backward in the long side direction, i.e., the vertical direction. On the other hand, in the short side direction, i.e., the horizontal direction, as... Figure 7 As shown, the comb surface 10A is formed into a curved shape that protrudes slightly forward from the center. The comb surface 10A has a first comb surface 11A, a second comb surface 12A, and a third comb surface 13A, which will be described later. The back surface 10B of the base portion 10 is as follows... Figure 6 and Figure 7 As shown, the central portion protrudes rearward in both the vertical and horizontal directions. The base portion 10 forms a ventilation passage 40. The ventilation passage 40 extends from the back surface 10B of the base portion 10 to the comb surface 10A. The ventilation passage 40 is configured to have a first ventilation passage 41, a second ventilation passage 42, and a third ventilation passage 43, which will be described later.

[0036] like Figure 1 , Figure 3 , Figure 4As shown, the comb portion 20 is provided on the comb surface 10A side of the base portion 10. The comb portion 20 has a plurality of first pins 51. The plurality of first pins 51 correspond to the plurality of pins of the present invention. The plurality of first pins 51 are erected from the comb surface 10A. Each first pin 51 protrudes forward in a straight line from the comb surface 10A. The plurality of first pins 51 extend parallel to each other in the front-rear direction. As described above, the comb surface 10A has a curved surface shape that bends in different directions in the long side direction and the short side direction. Therefore, the protruding ends of the plurality of first pins 51 that are parallel to each other and of equal length are arranged in a curved surface shape like the curved surface shape of the comb surface 10A. In addition to these plurality of first pins 51, the comb portion 20 also has a plurality of second pins 52, which will be described later.

[0037] like Figures 1 to 3 As shown, the handle portion 30 extends linearly downward from the lower end of the base portion 10. A cap 31, made of a resin harder than TPE resin, such as ABS (Acrylonitrile Butadiene Styrene) resin, is attached to the portion of the handle portion 30 that is integrally molded with the base portion 10 and the comb portion 20. Ridge-like undulations extending in the vertical direction are formed on the surface of the cap 31. These ridge-like undulations function as an anti-slip feature when gripping the handle portion 30.

[0038] like Figures 1 to 7 As shown, the base portion 10 has a first base portion 11, a second base portion 12, a third base portion 13, a first connecting portion 14, and a second connecting portion 15. These first base portions 11, second base portions 12, third base portions 13, first connecting portions 14, and second connecting portions 15 are integrally formed with the comb portion 20 and a portion of the handle portion 30 using a thermoplastic elastomer resin (TPE) with excellent elasticity. A separate plate 16 is embedded between the first connecting portion 14 and the second connecting portion 15. In this embodiment, the comb 1 has gate marks from the molding process on the portion covered by the plate 16. The comb 1 uses the plate 16 to cover the gate marks, thereby enhancing its design aesthetics.

[0039] like Figure 1 and Figure 2As shown, the first base portion 11, the second base portion 12, and the third base portion 13 are each elliptical in shape. The first base portion 11, the second base portion 12, and the third base portion 13 are each annular, extending through the front-rear direction. In this embodiment, the first base portion 11, the second base portion 12, and the third base portion 13 are arranged approximately concentrically with respect to the center (hereinafter referred to as the center) of the base portion 10 viewed from the front, starting from the center. That is, the arrangement is as follows: in directions intersecting the front-rear direction, the second base portion 12 circumferentially surrounds the first base portion 11, and the third base portion 13 circumferentially surrounds the second base portion 12.

[0040] like Figure 1 As shown, the front surfaces of each part of the first base portion 11, the second base portion 12, and the third base portion 13 are the first comb surface 11A, the second comb surface 12A, and the third comb surface 13A constituting the comb surface 10A. Each comb surface 11A, 12A, and 13A is formed in a ring shape. Specifically, each comb surface 11A, 12A, and 13A is an elliptical ring with the vertical direction as its major axis. Each comb surface 11A, 12A, and 13A is arranged approximately concentrically in the order of the first comb surface 11A, the second comb surface 12A, and the third comb surface 13A, starting from the center. On each comb surface 11A, 12A, and 13A, a plurality of first pins 51 are erected in a ring shape.

[0041] like Figure 1 , Figure 2 , Figure 6 As shown, the first connecting portion 14 and the second connecting portion 15 connect the first base portion 11, the second base portion 12, and the third base portion 13. Specifically, the first connecting portion 14 connects the first base portion 11 and the second base portion 12. The second connecting portion 15 connects the second base portion 12 and the third base portion 13. In this embodiment, the first connecting portion 14 and the second connecting portion 15 are positioned approximately at the same circumferential position on the elliptical-shaped base portion 10. More specifically, the first connecting portion 14 and the second connecting portion 15 are positioned approximately at the same circumferential position as the handle portion 30 on the base portion 10.

[0042] The first connecting portion 14 and the second connecting portion 15 are each capable of elastic deformation. Specifically, in this embodiment, the first connecting portion 14 and the second connecting portion 15 are integrally formed together with the first base portion 11, the second base portion 12, and the third base portion 13 by TPE molding. Figure 2 and Figure 6As shown, the first connecting portion 14 and the second connecting portion 15 are formed such that their size (thickness) in the front-to-back direction is smaller than their size (width) in the left-to-right direction. Therefore, each connecting portion 14, 15 is more easily elastically deformed in the front-to-back direction compared to the left-to-right direction. Furthermore, as... Figure 6 As shown, the front-rear dimension (thickness) of each connecting portion 14, 15 is smaller than that of each base portion 11, 12, 13 in the front-rear direction. That is, each connecting portion 14, 15 is formed thinner in the front-rear direction than each base portion 11, 12, 13. As a result, each connecting portion 14, 15 is more easily elastically deformable than each base portion 11, 12, 13. Furthermore, each connecting portion 14, 15 is connected to the rear end side of each base portion 11, 12, 13. As a result, a space is formed on the front surface side of each connecting portion 14, 15. These spaces on the front surface side of each connecting portion 14, 15 communicate with the second vent 42 and the third vent 43, which will be described later, in the left-right direction, respectively.

[0043] like Figure 6 and Figure 7 As shown, the first base portion 11 is cylindrical and has a through hole extending in the front-rear direction. Specifically, the first base portion 11 is a funnel-shaped cylinder that narrows from the rear end to the front end. The inner diameter of the first base portion 11 is such that the inner diameter at the rear end is larger than the inner diameter at the front end. The first base portion 11 has a cross-sectional shape that curves towards the center from the rear end towards the front end. The inner peripheral surface 11B of the first base portion 11 forms a first ventilation passage 41. Furthermore, in the following description, the inner peripheral surface 11B of the first base portion 11, which forms the wall surface of the first ventilation passage 41, is also referred to as the inner wall surface 41A. The inner peripheral surface 11B of the first base portion 11 is formed as a generally arc-shaped cross-section with a curvature that gradually decreases from the rear end towards the front end. The inner peripheral surface 11B of the first base portion 11 is continuous from the rear end to the front end without any drop. The outer peripheral surface 11C of the first base portion 11 forms a second ventilation passage 42 between itself and the inner peripheral surface 12B of the second base portion 12. The outer peripheral surface 11C of the first base portion 11 corresponds to the central side wall surface of the wall surface of the base portion 10 forming the second ventilation passage 42. Hereinafter, the outer peripheral surface 11C of the first base portion 11, which forms the wall surface of the second ventilation passage 42, is also referred to as the second central side wall surface 42A. Like the inner peripheral surface 11B, the outer peripheral surface 11C of the first base portion 11 is formed into a generally arc-shaped cross-section with the curvature gradually decreasing from the rear end to the front end, and is continuous without drop.

[0044] The front surface of the first base portion 11 is a first comb surface 11A. A plurality of first pins 51 are erected on the first comb surface 11A. The first pins 51 on the first comb surface 11A are arranged in a ring along the first comb surface 11A. The inner edge of the first comb surface 11A forms the front end opening of a first ventilation passage 41. The outer edge of the first comb surface 11A forms the front end opening of a second ventilation passage 42. (The text repeats itself here.) Figure 1As shown, the first comb surface 11A is formed in an elliptical ring shape at the front end of the elliptical annular first base portion 11. (As shown...) Figure 6 and Figure 7 As shown, the vertical end of the first comb surface 11A is located slightly forward of the horizontal end.

[0045] The rear end of the first base portion 11 slopes outward. Specifically, as shown... Figure 6 and Figure 7 As shown, the inclination of the rear end portion of the first base portion 11 is a continuous cross-sectional curve inclination from the front end side. The first base portion 11 extends in a manner that curves in a cross-sectional arc shape towards the rear end. As a result, the rear end portion of the first base portion 11 protrudes outward in an eaves-like shape. In such a first base portion 11, the rear end face 11D faces outward.

[0046] like Figure 2 , Figure 6 and Figure 7 As shown, a ridge-like undulation 60 is formed on the inner peripheral surface 11B of the first base portion 11. The undulation 60 extends from the rear end to the front end of the first base portion 11 on the inner peripheral surface. Multiple undulations 60 are arranged circumferentially on the inner peripheral surface 11B. In addition to guiding the airflow from the hair dryer flowing into the first ventilation passage 41 from the rear end opening to the front end, the undulations 60 also contribute to enhancing the design of the hair comb 1. The same undulations 60 are also formed on the inner peripheral surfaces of the second base portion 12 and the third base portion 13.

[0047] like Figure 6 and Figure 7 As shown, the second base portion 12 is concentrically disposed outside the first base portion 11. The second base portion 12 has a cross-sectional shape that curves towards the center from the rear end toward the front end. The inner peripheral surface 12B of the second base portion 12 forms a second ventilation passage 42 between itself and the outer peripheral surface 11C of the first base portion 11. The inner peripheral surface 12B of the second base portion 12 corresponds to the outer wall surface of the base portion 10 in the wall surface forming the second ventilation passage 42. Hereinafter, the inner peripheral surface 12B of the second base portion 12, which is the wall surface forming the second ventilation passage 42, is also referred to as the second outer wall surface 42B. On the inner peripheral surface 12B of the second base portion 12, similarly to the inner peripheral surface 11B of the first base portion 11, a plurality of ridge-like undulations 60 extending in the front-rear direction are arranged in the circumferential direction.

[0048] like Figure 6 and Figure 7As shown, the rear end of the inner peripheral surface 12B of the second base portion 12 is located forward of the rear end of the outer peripheral surface 11C of the first base portion 11. That is, in the wall surface of the base portion 10 forming the second ventilation passage 42, the rear end of the outer peripheral surface 11C of the first base portion 11 (corresponding to the central side wall) is located rearward of the rear end of the inner peripheral surface 12B of the second base portion 12 (corresponding to the outer side wall). The longitudinal length of the second base portion 12 is shorter than that of the central side first base portion 11. That is, in the wall surface of the base portion 10 forming the second ventilation passage 42, the longitudinal length of the outer peripheral surface 11C of the first base portion 11 (corresponding to the central side wall) is longer than that of the inner peripheral surface 12B of the second base portion 12 (corresponding to the outer side wall).

[0049] like Figure 6 and Figure 7 As shown, the inner peripheral surface 12B of the second base portion 12 is a continuous surface with a generally arc-shaped cross-section whose curvature gradually decreases from the rear end to the front end. The inner diameter of the inner peripheral surface 12B of the second base portion 12 is such that the inner diameter of the rear end is larger than the inner diameter of the front end. The outer peripheral surface 12C of the second base portion 12 forms a third ventilation passage 43 between itself and the inner peripheral surface 13B of the third base portion 13. The outer peripheral surface 12C of the second base portion 12 corresponds to the wall surface on the center side of the base portion 10 in the wall surface forming the third ventilation passage 43. Hereinafter, the outer peripheral surface 12C of the second base portion 12, which is the wall surface forming the third ventilation passage 43, is also referred to as the third center side wall surface 43A. Like the inner peripheral surface 12B, the outer peripheral surface 12C of the second base portion 12 is formed with a generally arc-shaped cross-section whose curvature gradually decreases from the rear end to the front end, and is continuous without any drop.

[0050] The front surface of the second base portion 12 is a second comb surface 12A. A plurality of first pins 51 are erected on the second comb surface 12A of the second base portion 12. The second comb surface 12A is formed in an elliptical ring shape at the front end of the elliptical ring-shaped second base portion 12. The first pins 51 on the second comb surface 12A are arranged in a ring along the second comb surface 12A. The inner edge of the second comb surface 12A forms the front end side opening of the second vent 42. The outer edge of the second comb surface 12A forms the front end side opening of the third vent 43. An inclined surface 12E, described later, is formed on the outer side of the second comb surface 12A. The second comb surface 12A concentrically surrounds the first comb surface 11A. Figure 6 and Figure 7 As shown, the vertical ends of the second comb surface 12A are positioned further forward than the horizontal ends. From a side view, the vertical ends of the second comb surface 12A are positioned further forward than the first comb surface 11A. The horizontal ends of the second comb surface 12A are positioned further backward than the first comb surface 11A.

[0051] The rear end of the second base portion 12 slopes outward. Specifically, as... Figure 6 and Figure 7 As shown, the slope of the rear end portion of the second base portion 12 is a continuous cross-sectional curve slope from the front end side. Consequently, the rear end of the outer peripheral surface 12C of the second base portion 12 also forms a similarly sloped surface. The second base portion 12 extends in a cross-sectional arc-shaped warping manner towards the rear end. Therefore, the rear end of the second base portion 12 protrudes outward in an eave-like shape. In this second base portion 12, the rear end surface 12D faces outward.

[0052] like Figure 6 and Figure 7 As shown, the outer peripheral surface 12C of the second base portion 12 has an inclined surface 12E. The inclined surface 12E extends obliquely backward from the outer edge of the second comb surface 12A with a chamfered cross-section of C. The inclined surface 12E is formed over the entire circumference of the front end of the outer peripheral surface 12C. A plurality of second pins 52 are erected on the inclined surface 12E in the second base portion 12. A plurality of second pins 52 are erected in a ring shape from the inclined surface 12E, surrounding the outer periphery of the second comb surface 12A on which the first pins 51 are erected. Each second pin 52 is erected substantially parallel to the front-rear direction, just like each first pin 51. Since the second pins 52 are erected from the inclined surface 12E, the base end of each second pin 52 is located further rearward than the front-rear position of the base end of the first pin 51 located on the second comb surface 12A. That is, the protruding ends of the plurality of first pins 51 of the comb portion 20 are located further forward than the protruding ends of the plurality of second pins 52. Therefore, the comb section 20 has a two-section structure, where the protruding ends of the plurality of first pins 51 and the protruding ends of the plurality of second pins 52 are staggered in height. The second pins 52 are also located on the outer peripheral surface 13C of the third base section 13, described later. By making the protruding ends of the first pins 51 and second pins 52 stepped, the following benefits are achieved: the comb 1 can untangle hair near the scalp using the first pins 51, whose protruding ends are further forward, and untangle hair further away from the scalp using the second pins 52. Thus, by blowing air through the hair dryer while the hair is more tangled, the hair can be dried faster compared to when there are more tangles.

[0053] like Figure 6 and Figure 7As shown, the third base portion 13 is concentrically disposed on the outer side of the second base portion 12. The third base portion 13 is curved such that it gradually approaches the center from the rear end toward the front end. The inner peripheral surface 13B of the third base portion 13 forms a third venting passage 43 between itself and the outer peripheral surface 12C of the second base portion 12. The inner peripheral surface 13B of the third base portion 13 corresponds to the outer wall surface of the base portion 10 in the wall surface forming the third venting passage 43. Hereinafter, the inner peripheral surface 13B of the third base portion 13, which forms the wall surface of the third venting passage 43, is also referred to as the third outer wall surface 43B.

[0054] like Figure 6 and Figure 7 As shown, the rear end of the inner peripheral surface 13B of the third base portion 13 is located forward of the rear end of the outer peripheral surface 12C of the second base portion 12. That is, in the wall surface forming the third ventilation passage 43, the rear end of the outer peripheral surface 12C of the second base portion 12, which corresponds to the central side of the wall, is located rearward of the rear end of the inner peripheral surface 13B of the third base portion 13, which corresponds to the outer side of the wall. The longitudinal length of the third base portion 13 is shorter than that of the central side of the second base portion 12. That is, in the wall surface forming the third ventilation passage 43, the longitudinal length of the outer peripheral surface 12C of the second base portion 12, which corresponds to the central side of the wall, is longer than that of the inner peripheral surface 13B of the third base portion 13, which corresponds to the outer side of the wall.

[0055] The inner circumferential surface 13B of the third base portion 13 forms a continuous surface with a generally arc-shaped cross-section whose curvature gradually decreases from the rear end to the front end. The inner diameter of the inner circumferential surface 13B of the third base portion 13 is such that the inner diameter of the rear end is larger than the inner diameter of the front end. On the inner circumferential surface 13B of the third base portion 13, similarly to the inner circumferential surfaces 11B and 12B of the first base portion 11 and the second base portion 12, a plurality of ridge-like undulations 60 extending in the front-rear direction are arranged in the circumferential direction. The outer circumferential surface 13C of the third base portion 13, like the inner circumferential surface 13B, is formed with a generally arc-shaped cross-section whose curvature gradually decreases from the rear end to the front end, and is continuous without any drop.

[0056] The front surface of the third base portion 13 is a third comb surface 13A. Multiple first pins 51 are erected on this third comb surface 13A. The inner edge of the third comb surface 13A forms the front end side opening of the third ventilation passage 43. (Example...) Figure 1 As shown, the third comb surface 13A, viewed from the front from the main perspective, is an elliptical ring, further concentrically surrounding the second comb surface 12A, which in turn concentrically surrounds the first comb surface 11A. Figure 6 and Figure 7As shown, the vertical end of the third comb surface 13A is positioned further forward than its horizontal end. From a side view, the vertical ends of the third comb surface 13A are positioned further forward than the second comb surface 12A. The horizontal ends of the third comb surface 13A are positioned further backward than the second comb surface 12A.

[0057] The outer peripheral surface 13C of the third base portion 13 is adjacent to the outer edge of the third comb surface 13A. A plurality of second pins 52 are erected on the outer peripheral surface 13C of the third base portion 13. The plurality of second pins 52 are erected in a ring shape from the outer peripheral surface 13C, surrounding the outer periphery of the third comb surface 13A where the first pins 51 are erected. Each second pin 52, like each first pin 51, is erected approximately parallel to the front-rear direction. The protruding length of each second pin 52 from the outer peripheral surface 13C is the same as the length of the first pin 51. The protruding ends of each second pin 52 protruding from the outer peripheral surface 13C, which is further rearward than the protruding ends of the first pins 51 protruding from the comb surface 13A, are located further rearward than the protruding ends of the first pins 51 protruding from the comb surface 13A. A drop is formed between the protruding ends of the plurality of second pins 52 erected on the outer peripheral surface 13C and the protruding ends of the plurality of first pins 51 of the comb surface 13A adjacent to the inner side.

[0058] The rear end of the third base portion 13 slopes outward. Specifically, as... Figure 6 and Figure 7 As shown, the inclination of the rear end portion of the third base portion 13 is a continuous cross-sectional curve inclination from the front end side. Consequently, the outer peripheral surface 13C at the rear end of the third base portion 13 also exhibits the same inclination. The third base portion 13 extends in a cross-sectional arc-shaped warping manner towards the rear end. Therefore, the rear end of the third base portion 13 protrudes outward in an eave-like shape. In this third base portion 13, the rear end surface 13D faces outward.

[0059] like Figures 3 to 5 As shown, the center side of the back surface 10B of the base portion 10 is located further rearward than the outer side. Specifically, as... Figure 3 As shown, the back surface 10B of the base portion 10 has a generally arc-shaped profile in the vertical direction, which is most convex from the center outwards from a side viewpoint. Furthermore, as... Figure 4 and Figure 5 As shown, the back surface 10B of the base portion 10 has a stepped shape in the left-right direction, which is most convex from the center to the rear when viewed from a top view. In this embodiment, the base portion 10 is shaped as follows: among the first base portion 11, the second base portion 12, and the third base portion 13 constituting the base portion 10, the rear end of the first base portion 11, which is located at the very center, is located at the very rear, and the rear end of the third base portion 13, which is located at the very outermost, is located at the very front.

[0060] like Figures 1 to 7As shown, in the base portion 10, the ventilation passage 40 is configured to have a first ventilation passage 41, a second ventilation passage 42, and a third ventilation passage 43. Each ventilation passage 41, 42, and 43 is formed approximately concentrically from the center of the base portion 10 in the order of the first ventilation passage 41, the second ventilation passage 42, and the third ventilation passage 43. The first ventilation passage 41 is formed as a space within the inner peripheral surface 11B (inner wall surface 41A) of a through hole penetrating the first base portion 11. The second ventilation passage 42 is formed as a space between the outer peripheral surface 11C (second central side wall surface 42A) of the first base portion 11 and the inner peripheral surface 12B (second outer side wall surface 42B) of the second base portion 12. The third ventilation passage 43 is formed as a space between the outer peripheral surface 12C (third central side wall surface 43A) of the second base portion 12 and the inner peripheral surface 13B (third outer side wall surface 43B) of the third base portion 13.

[0061] like Figure 6 , Figure 7 As shown, each of the ventilation passages 41, 42, and 43 is configured such that the opening at the rear end is larger than the opening at the front end. The rear openings of each ventilation passage 41, 42, and 43 are located sequentially at the rear, in the order of the first ventilation passage 41, the second ventilation passage 42, and the third ventilation passage 43. That is, the ventilation passage located at the center of the base 10 has its rear opening positioned further rearward than the ventilation passage located on the outer side. Furthermore, in Figure 6 In the side profile shown, the air passages 41, 42, and 43 in the hair comb 1 are arranged sequentially from the front: third air passage 43, second air passage 42, and first air passage 41. Figure 7 In the top view shown, the air passages 41, 42, and 43 in the hair comb 1 are arranged in the order of first air passage 41, second air passage 42, and third air passage 43 from the front.

[0062] like Figure 1 and Figure 2 As shown, the second vent 42, in the portion having the lower end of the first connecting part 14, forms a partially cut-off shape, appearing as an elliptical ring (C-shaped) from a frontal view. For example... Figure 6 and Figure 7 As shown, in the second central sidewall 42A and the second outer sidewall 42B forming the second ventilation passage 42, the rear end of the second central sidewall 42A is located further rearward than the rear end of the second outer sidewall 42B. The front-to-back length of the second central sidewall 42A and the second outer sidewall 42B is such that the second central sidewall 42A is longer than the second outer sidewall 42B. The second central sidewall 42A is inclined outward toward the base portion 10. The rear end of the second central sidewall 42A is located further outward than the front end of the base portion 10.

[0063] like Figure 1 and Figure 2 As shown, the third vent 43, in the portion having the lower end of the second connecting part 15, forms a partially cut-off shape, which appears as an elliptical ring (C-shaped) from a frontal view. For example... Figure 6 and Figure 7 As shown, in the third central sidewall 43A and the third outer sidewall 43B forming the third ventilation passage 43, the rear end of the third central sidewall 43A is located further rearward than the rear end of the third outer sidewall 43B. The front-to-back length of the third central sidewall 43A and the third outer sidewall 43B is such that the third central sidewall 43A is longer than the third outer sidewall 43B. The third central sidewall 43A is inclined towards the outer side of the base portion 10. The rear end of the third central sidewall 43A is located further outward than the front end of the base portion 10.

[0064] The function of the hairbrush 1 with the above-described structure will be explained with reference to a usage example. When drying hair after shampooing, the user of the hairbrush 1 holds the handle 30 and combs the hair through the comb section 20 while blowing air from the hairdryer. The air from the hairdryer travels through the air passage 40 from the back 10B of the base 10 to the comb surface 10A side. The hairbrush 1 can guide the air from the hairdryer to the comb surface 10A side, which becomes the combing position, via the air passage 40.

[0065] As long as the air from the hair dryer is directed towards the back surface 10B of the base 10, it can be effectively guided into either the second or third air passage 42, which are concentrically arranged around the first air passage 41, and then circulate to the comb surface 10A. Therefore, regardless of where the air from the hair dryer blows on the back surface 10B of the base 10, it will enter each of the air passages 41, 42, and 43 and circulate to the comb surface 10A. Furthermore, among the concentric air passages 41, 42, and 43, the second and third air passages 42 and 43 are annular. Therefore, for example, a portion of the air flowing into the hair dryer from the rear end opening of the second or third air passage 42 and 43 can circumferentially circumferentially circumferentially within the air passages 42 and 43, and can be blown out from the front end opening. In this way, the hairbrush 1 allows the airflow from the hairdryer that flows in from the rear side opening to be released from a wider range at the front side opening, thereby efficiently drying the hair and scalp.

[0066] Furthermore, on the front surface side of the first connecting portion 14 and the second connecting portion 15, spaces communicating with the second ventilation passage 42 and the third ventilation passage 43 are formed in the left-right direction. Therefore, the airflow from the hair dryer, which flows in from a portion of the rear end openings of the second and third ventilation passages 42 and 43 and circumferentially through the ventilation passages 42 and 43, can flow around the entire circumference without being obstructed by the connecting portions 14 and 15, and is effectively blown out from the front end opening. In this way, the hair comb 1 allows the airflow from the hair dryer, which flows in from a portion of the rear end openings of the second and third ventilation passages 42 and 43, to be released more widely at the front end opening. As a result, the hair comb 1 can dry hair and scalp more efficiently.

[0067] like Figure 8 and Figure 9 As shown, because the opening on the back side 10B of the base portion 10 in the air passage 40 is larger than the opening on the comb surface 10A, the air from the hair dryer can easily enter the air passage 40. In addition, the air flowing in the air passage 40 is accelerated and blown out from the opening on the comb surface 10A, which is smaller than the opening on the back side 10B, so that it can reach the hair and scalp with stronger airflow.

[0068] like Figure 8 and Figure 9 As shown, assuming the air from the rear side 10B of the base portion 10 is blown in from the rear. In this case, since the rear end of the second central side wall 42A, located on the center side of the base portion 10, is positioned further rearward than the rear end of the second outer side wall 42B, the air from the blower can be received by the second central side wall 42A and enter the second ventilation passage 42 well. Furthermore, since the rear end of the second central side wall 42A is inclined towards the outer side of the base portion 10, the air from the blower received by the rear end of the second central side wall 42A is well guided towards the front comb surface 10A within the second ventilation passage 42. Additionally, since a ridge-like undulation 60 is formed on the second outer side wall 42B, the air from the blower flowing through the second ventilation passage 42 is well guided towards the front comb surface 10A. Furthermore, since the length of the second central sidewall 42A in the front-to-back direction is longer than that of the second outer sidewall 42B, the airflow from the blower circulating in the second ventilation passage 42 can reach the vicinity of the scalp H well along the second central sidewall 42A.

[0069] Similarly, since the rear end of the third central sidewall 43A is located further rearward than the rear end of the third outer sidewall 43B in the wall forming the third ventilation passage 43, the air blown in from the rear of the base portion 10 10B can be received by the third central sidewall 43A and enter the third ventilation passage 43 well. Furthermore, since the rear end of the third central sidewall 43A also slopes outward towards the base portion 10, the air blown in the third ventilation passage 43 is well guided towards the comb surface 10A within the third ventilation passage 43. Additionally, since a ridge-like undulation 60 is formed on the third outer sidewall 43B, the air blown in the third ventilation passage 43 is well guided towards the comb surface 10A within the third ventilation passage 43. Furthermore, the airflow from the blower circulating within the third ventilation path 43 is well guided to the vicinity of the scalp H along the third central sidewall 43A, which is longer than the third outer sidewall 43B in the front-back direction.

[0070] Furthermore, the comb section 20 has a plurality of first pins 51. The plurality of first pins 51 are erected from the comb surface 10A, which is curved in a manner that recesses rearward from the center in the longitudinal direction. Therefore, as... Figure 8 As shown, the hair comb 1, along the long side of the base portion 10, allows the protruding end of the first pin 51 to easily follow the curved shape of the user's scalp H, enabling good combing.

[0071] On the other hand, the comb surface 10A has a slightly convex, forward-protruding curved shape in the short-side direction. This curved shape is opposite to the curvature of the user's scalp H. However, in the comb 1, the first base portion 11, the second base portion 12, and the third base portion 13 connecting the base portion 10 are connected by a first connecting portion 14 and a second connecting portion 15 that are elastically deformable. Therefore, if the comb portion 20 is pressed onto the scalp H, the first connecting portion 14 and the second connecting portion 15 will elastically deform. As a result, the first base portion 11, the second base portion 12, and the third base portion 13 can be displaced in the front-back direction respectively, and the protruding ends of the respective first pins 51 can be aligned with the curvature of the scalp H.

[0072] Furthermore, the first connecting portion 14 and the second connecting portion 15 are positioned approximately at the same level as the handle portion 30 in the circumferential direction of the base portion 10. Therefore, when the comb 1 is used while holding the handle portion 30, the force that causes the first connecting portion 14 and the second connecting portion 15 to elastically deform is effectively transmitted from the handle portion 30 held by the user to each connecting portion 14, 15.

[0073] Furthermore, the first base portion 11, the second base portion 12, and the third base portion 13 are integrally formed with the first connecting portion 14 and the second connecting portion 15, and are all made of TPE. Therefore, if the first base portion 11, the second base portion 12, and the third base portion 13 are further elastically deformed based on the elastic deformation of the first connecting portion 14 and the second connecting portion 15, the fit with the scalp H will be further improved.

[0074] In addition, such as Figure 10 and Figure 11 As shown, when the comb portion 20 of the hairbrush 1 is pressed onto the scalp H, elastic deformation occurs in the first connecting portion 14 and the second connecting portion 15, and the first base portion 11, the second base portion 12, and the third base portion 13 each shift relative to each other in the front-back direction. The first connecting portion 14 and the second connecting portion 15 are formed thinner in the front-back direction than the base portions 11, 12, and 13. Therefore, the hairbrush 1 can elastically deform well at the first connecting portion 14 and the second connecting portion 15. Thus, by causing elastic deformation in the first connecting portion 14 and the second connecting portion 15, the second base portion 12 moves rearward relative to the third base portion 13, and the first base portion 11 moves further rearward relative to the second base portion 12, which has already moved rearward relative to the third base portion 13. As a result, the rear end opening of the second air passage 42 and the rear end opening of the third air passage 43 become wider.

[0075] In detail, such as Figure 10 and Figure 11 As shown, the first connecting part 14 undergoes elastic deformation, and the size L42A of the rear end opening of the second vent 42 after the first base part 11 moves rearward relative to the second base part 12 is greater than... Figure 8 and Figure 9 The front-to-back size L42 of the rear end opening of the second vent 42 when the first connecting portion 14 is in its natural state without elastic deformation is shown. Similarly, when the second connecting portion 15 undergoes elastic deformation, the front-to-back size L43A of the rear end opening of the third vent 43 after the second base portion 12 moves rearward relative to the third base portion 13 is greater than the front-to-back size L43 of the rear end opening of the third vent 43 when the second connecting portion 15 is in its natural state without elastic deformation. In this way, the comb 1 causes the first connecting portion 14 and the second connecting portion 15 to undergo elastic deformation by making the comb portion 20 fit against the scalp H, thereby widening the rear end openings of the second vent 42 and the third vent 43, making it easier for the air from the hair dryer to enter the second vent 42 and the third vent 43.

[0076] In addition to the multiple first pins 51, the comb section 20 also has multiple second pins 52 of the same length as each first pin 51, which are erected from the surface behind the erected surface of the first pins 51. That is, the comb section 20 in the hair comb 1 has a two-part structure with multiple first pins 51 erected from the comb surfaces 11A, 12A, and 13A, and multiple second pins 52 of approximately the same length as the first pins 51, which are erected from the surface further behind the comb surfaces 12A and 13A. Therefore, by combing the hair while keeping the first pins 51 in contact with the surface of the scalp H without keeping the second pins 52 in contact with the scalp H, it is possible to untangle the hair while quickly drying it. Furthermore, by bending the first pins 51 and making them in contact with the surface of the scalp H, it is also possible to make the second pins 52 in contact with the scalp H. In this case, by applying the tension of the first pins 51 generated by bending to straighten the hair curl while drying the hair, it is also possible to help relieve the curl of the hair. Furthermore, even when neither the first pin 51 nor the second pin 52 is in contact with the scalp, the difference in height between the protruding ends of the first pin 51 and the second pin 52 allows the hair to be parted at positions closer to the scalp and positions further from the scalp but closer to the hair surface, thus facilitating overall airflow to the hair. Moreover, since the second pin 52 is closer to the outer periphery of the base 10 than the first pin 51, it is particularly easy for airflow from the outer periphery of the comb 1 to smoothly reach deep into the hair.

[0077] Furthermore, since the length of the second pin 52 is approximately the same as that of the first pin 51, it can bend with approximately the same stiffness as the first pin 51 even when the protruding end of the second pin 52 contacts the scalp H. For example, in the case of a comb part with two pins of different protruding lengths and a two-section structure, if the protruding end of the shorter pin touches the scalp, it may sometimes feel a different stiffness than the longer pin, or cause pain. In contrast, by making the lengths of the first pin 51 and the second pin 52 approximately equal, the comb 1 is less likely to cause discomfort even when the protruding end of the second pin 52 touches the scalp H.

[0078] As described above, the hairbrush 1 of Embodiment 1 has a base portion 10 and a first pin 51 which is a plurality of pins erected from the front surface, i.e., the comb surface 10A, of the base portion 10. The base portion 10 has a first air passage 41, a second air passage 42, and a third air passage 43 extending from the rear surface, i.e., the back surface 10B, to the comb surface 10A. Furthermore, the opening size at the rear end of the air passages 41, 42, and 43 is larger than the opening size at the front end.

[0079] Thus, the openings on the back side 10B of the base portion 10 of the air passages 41, 42, and 43 in the hair comb 1 are larger than the openings on the comb surface 10A. Therefore, compared to the case where the size of the rear opening in the air passage is equal to that of the front opening, this hair comb 1 can more easily draw air into the air passages 41, 42, and 43 from the rear opening. That is, it is easier for the air blown in from the back side 10B of the base portion 10 to enter the air passages 41, 42, and 43. Therefore, the hair comb 1 can guide more air to the comb head position, i.e., the comb surface 10A side. In addition, since the front opening of the hair comb 1 is smaller than the rear opening in the air passages 41, 42, and 43, it can blow air out from the air passages 41, 42, and 43 to the comb surface 10A side at a flow rate faster than the inflow velocity.

[0080] Furthermore, in the hair comb 1 of Embodiment 1, the rear ends of the second central sidewall 42A and the second outer sidewall 42B forming the second air passage 42 are located further rearward than the rear end of the second outer sidewall 42B. Similarly, the rear ends of the third central sidewall 43A and the third outer sidewall 43B forming the third air passage 43 are located further rearward than the rear end of the third outer sidewall 43B. The second central sidewall 42A and the third central sidewall 43A correspond to the wall surfaces of the present invention located on the outer side of the base portion closer to the center. The second outer sidewall 42B and the third outer sidewall 43B correspond to the wall surfaces of the present invention located on the outer side of the base portion closer to the center.

[0081] Thus, in the second air passage 42 and the third air passage 43 constituting the air passage 40 in the hair comb 1, the rear end of the wall surface that is closer to the center of the base portion 10 is located further back in the rear of the wall surface that forms the air passage. Therefore, compared to the case where the rear end of the wall surface of the base portion forming the air passage is located at the same position on the center side and the outer side of the base portion, the hair comb 1 can more easily introduce air into the air passage from the opening at the rear end. As a result, the hair comb 1 can guide more air to the comb head position, i.e., the comb surface 10A side. In addition, even when the hair comb 1 blows air from any direction outside the base portion 10, the air can be received by the wall surface located further back on the center side, i.e., the second center side wall surface 42A and the third center side wall surface 43A, and introduced into the second air passage 42 and the third air passage 43.

[0082] Furthermore, in the hairbrush 1 of Embodiment 1, the front-to-back lengths of the walls of the base portion 10 forming the second ventilation passage 42, namely the outer peripheral surface 11C (second central side wall 42A) of the first base portion 11 and the inner peripheral surface 12B (second outer side wall 42B) of the second base portion 12, are such that the second central side wall 42A is longer than the second outer side wall 42B. Similarly, the front-to-back lengths of the walls of the base portion forming the third ventilation passage 43, namely the outer peripheral surface 12C of the second base portion 12 and the inner peripheral surface 13B of the third base portion 13, are such that the outer peripheral surface 12C of the second base portion 12, located at the center of the base portion 10, is longer than the inner peripheral surface 13B of the third base portion 13, located on the outer side of the base portion 10. Therefore, compared to the case where the front-to-back lengths of the walls of the base portions forming the ventilation passages are equal, the hairbrush 1 can position the front openings of the ventilation passages 42 and 43 closer to the scalp H. Therefore, the hairbrush 1 can direct the airflow from the hairdryer to the vicinity of the scalp H.

[0083] Furthermore, in the hairbrush 1 of Embodiment 1, the rear end of the second central sidewall 42A forming the second air passage 42 (i.e., the outer peripheral surface 11C of the first base portion 11) and the rear end of the third central sidewall 43A forming the third air passage 43 (i.e., the outer peripheral surface 12C of the second base portion 12) are inclined towards the outside of the base portion 10, respectively. Therefore, the hairbrush 1 can guide the airflow from the hair dryer received by the rear ends of the second central sidewall 42A and the third central sidewall 43A forward.

[0084] Furthermore, in the hair comb 1 of Embodiment 1, ridge-like undulations 60 extending in the front-to-back direction are formed on the inner peripheral surfaces 11B of the first base portion 11, 12B of the second base portion 12, and 13B of the third base portion 13. These inner peripheral surfaces 11B of the first base portion 11, 12B of the second base portion 12, and 13B of the third base portion 13 correspond to the wall surfaces of the base portions forming the ventilation passages. Therefore, the hair comb 1, through the ridge-like undulations 60, can guide and rectify the flow of air circulating in each ventilation passage 41, 42, 43 into a flow of air in the front-to-back direction, and can efficiently make it flow forward.

[0085] Furthermore, the hair comb 1 of Embodiment 1 has a base portion 10 and a plurality of pins, namely first pins 51, erected from the front surface of the base portion 10, namely the comb surface 10A. The base portion 10 has a first base portion 11, a second base portion 12 that surrounds the first base portion 11 circumferentially in a direction intersecting the front-back direction, and a first connecting portion 14 that serves as an elastically deformable connecting portion connecting the first base portion 11 and the second base portion 12.

[0086] The hairbrush 1 has a space forming a second ventilation passage 42 between the first base portion 11 and the second base portion 12 in the base portion 10. Therefore, when combing hair, the hairbrush 1 allows air from the hair dryer to flow from the rear surface side to the front surface side through this space, thereby ensuring ventilation between the front and rear surface sides. In addition, the first connecting portion 14 between the first base portion 11 and the second base portion 12 of the hairbrush 1 is elastically deformable. Therefore, the first base portion 11 and the second base portion 12 can move independently, with the first connecting portion 14 as the boundary. As a result, the hairbrush 1 allows the pins, i.e., the first pins 51, erected from the first base portion 11 and the second base portion 12 respectively, to easily contact the scalp H, thereby improving the fit.

[0087] Furthermore, in the hair comb 1 of Embodiment 1, the first base portion 11 has a through hole, i.e., a first ventilation passage 41, that extends in the front-to-back direction. Therefore, the hair comb 1 can ventilate not only through the space between the first base portion 11 and the second base portion 12, i.e., the second ventilation passage 42, but also through the first ventilation passage 41 in the front-to-back direction.

[0088] Furthermore, in the hairbrush 1 of Embodiment 1, the base portion 10 has a third base portion 13 that surrounds the second base portion 12 in a direction intersecting the front-back direction, and a second connecting portion 15 that is elastically deformable and connects the second base portion 12 and the third base portion 13. Therefore, compared to the case where the base portion 10 only has a first base portion 11, a second base portion 12, and a first connecting portion 14, the pin can be made to fit the scalp H more extensively, and the fit can be further improved.

[0089] Furthermore, in the hairbrush 1 of Embodiment 1, the first connecting portion 14 and the second connecting portion 15 are positioned at equal positions in the circumferential direction. Therefore, the hairbrush 1 can ensure that the elastic deformation directions of the first connecting portion 14 and the second connecting portion 15 are consistent, thereby ensuring that the movement directions of the first base portion 11 and the second base portion 12 during the elastic deformation of each of the first connecting portion 14 and the second connecting portion 15 are the same. As a result, the hairbrush 1 can further enhance the fit.

[0090] Furthermore, the hairbrush 1 of Embodiment 1 has a handle portion 30 extending from the outer edge of the third base portion 13 in a direction intersecting the front-back direction. Also, the first connecting portion 14 and the second connecting portion 15 are positioned circumferentially at the same location as the handle portion 30. Therefore, compared to the case where the connecting portions are located away from the handle portion, the hairbrush 1 can more easily apply a force to each connecting portion 14, 15 to cause it to elastically deform, thereby further improving the fit.

[0091] The present invention is not limited to the embodiment 1 described above and illustrated in the accompanying drawings. For example, the following embodiments are also included within the technical scope of the present invention.

[0092] (1) In the hair comb of the present invention, it is not necessary for the base, pin, handle and other structures to be integrally formed. The base, pin, handle and other structures may also be formed by combining at least one separate component.

[0093] (2) In the hair comb of the present invention, the structure of the base portion is not limited to the structure of the above embodiments. For example, the base portion may have only a first base portion, a second base portion, and a first connecting portion, but without a third base portion and a second connecting portion. Alternatively, it may have a further annular base portion that surrounds the third base portion circumferentially, and a further connecting portion that connects the further base portion to the third base portion. In addition, the external shape of the base portion is not limited to the elliptical shape illustrated in the above embodiments, and may also be circular, polygonal, etc.

[0094] (3) When the hair comb of the present invention has a first connecting portion and a second connecting portion, their arrangement can also be located in the circumferential direction away from the handle portion. The arrangement of the first connecting portion and the second connecting portion in the circumferential direction can also be different.

[0095] (4) In the hair comb of the present invention, it is not necessary for the rear end of the wall surface on the central side of the base portion forming the air passage to be inclined toward the outside of the base portion. Such inclination is not limited to a cross-sectional curve, but can also be a cross-sectional straight line, or a combination of curves and straight lines, or a combination of straight lines with different angles, etc. In addition, when such an inclined wall surface is formed, the inclination is not limited to the rear end, but can also extend from the central part of the wall surface in the front-rear direction to the rear end, or can be formed continuously from the front end to the rear end. Furthermore, the rear end of the wall surface forming the air passage base portion can be a portion having a certain range in the front-rear direction from the rear end of the wall surface, for example, a portion having a length range of about 0.25 to 0.5 times the length of the wall surface in the front-rear direction. In addition, the rear end of the wall surface forming the air passage base portion can be the rearmost portion when the wall surface is divided into three equal parts in the front-rear direction. That is, the rear end, central part and front end of the wall surface forming the air passage base portion can be each part when the wall surface is divided into three equal parts in the front-rear direction.

[0096] (5) In the hair comb of the present invention, the second pin is not a necessary structure. When the hair comb has a second pin, the length, arrangement, etc. of the second pin are not limited to the above embodiments.

[0097] (6) In the hair comb of the present invention, it is not necessary to form ridge-like undulations on the wall surface of the base portion forming the air passage. Alternatively, the hair comb of the present invention may have plate-like ribs protruding from the wall surface of the base portion forming the air passage towards the center of the air passage, instead of ridge-like undulations. Such ribs, like undulations, can guide and rectify the flow of air circulating within the air passage into a flow of air in the front-to-back direction. Ribs, like undulations, can be arranged in multiple circumferential directions on the wall surface of the base portion forming the air passage. Ribs can protrude cantileveredly from the wall surface forming the air passage, or they can be double cantilevered, connected to the wall surface at both ends. Furthermore, undulations, ribs, etc., can be formed, for example, on the wall surface of the base portion forming the air passage located on the outer side of the base portion. That is, undulations, ribs, etc., only need to be formed on at least one of the inner and outer wall surfaces of the base portion forming the air passage. Furthermore, the ridge-like undulations are preferably formed on the entire circumference of the wall of the base portion forming the ventilation passage, but for example, it is sufficient to form at least two or more, and more preferably, more than one-quarter of the circumference.

[0098] (7) In the above embodiments, the second and third venting passages are annular, but the shape of the venting passages of the present invention is not limited to this. The venting passage can be a hole with a cross-sectional shape such as a circle, ellipse, oblong, or polygon, or a slit extending in a straight line or curve relative to the front-rear direction, etc., as long as its shape extends from the rear surface of the base to the front surface, there is no particular limitation. In addition, the venting passage can, for example, be open in the direction orthogonal to the front-rear direction, that is, in the outer peripheral direction of the base. Furthermore, in the present invention, the annular shape is not limited to a circle, ellipse, etc., but can also be a polygon such as a quadrilateral, or a shape in which a portion of a circle, ellipse, or polygon is combined in the circumferential direction.

[0099] (8) In addition to having a plurality of pins erected from the front surface of the base portion, the hairbrush of the present invention may also have a plurality of pins erected from the rear surface of the base portion. In this case, the pins on the rear surface side can be used for purposes other than combing, such as massage. By providing such pins, the hairbrush of the present invention can be used for purposes other than combing, thereby improving ease of use. In addition, the pins erected from the rear surface of the base portion can also function as guide walls to direct airflow into the ventilation path when using a hair dryer, thereby introducing more airflow into the ventilation path.

[0100] (9) The hairbrush of the present invention can replace any one of the multiple pins, or, in addition to the multiple pins, a rectifier plate can be provided on the front surface side of the base portion. The rectifier plate can be formed as a flat plate with its long side facing the center side of the base portion. In this case, the airflow that blows out from the front end opening of the air passage and hits the hair or scalp can be rectified to become turbulent, thereby helping to dry the hair again.

[0101] (10) The hair comb of the present invention is also suitable for use in shampooing. That is, by showering from the rear surface side of the base portion, the shower water flowing in the ventilation path of the hair comb of the present invention can be discharged from the front surface side of the base portion. That is, the ventilation path in the hair comb also functions as a water passage.

[0102] Explanation of reference numerals in the attached figures 1: Hair comb, 10: Base section (11: First base section, 12: Second base section, 13: Third base section). 10A: Comb surface (front surface of the base, 11A: first comb surface, 12A: second comb surface, 13A: third comb surface). 10B: Back side (rear surface of the base). 11B: Inner peripheral surface (the wall surface of the base portion that forms the ventilation passage). 11C: Outer peripheral surface (the wall surface of the base portion that forms the ventilation passage). 11D: Back end face, 12B: Inner circumferential surface (the wall surface of the base portion that forms the ventilation passage). 12C: Outer peripheral surface (the wall surface of the base portion that forms the ventilation passage). 13B: Inner circumferential surface (the wall surface of the base portion that forms the ventilation passage). 40: Ventilation path (41: First ventilation path, 42: Second ventilation path, 43: Third ventilation path). 51: First sale (sales), 60: Ridge-like undulations.

Claims

1. A hair comb, characterized in that, have: Base section; as well as Multiple pins are erected from the front surface of the base portion; The base portion has a ventilation passage extending from the rear surface to the front surface. The opening at the rear end of the ventilation path is larger than the opening at the front end.

2. A hair comb, characterized in that, have: Base section; as well as Multiple pins are erected from the front surface of the base portion; The base portion has a ventilation passage extending from the rear surface to the front surface. At the rear end of the wall of the base portion forming the ventilation passage, the wall of the center side of the base portion is located further back than the wall of the outer side of the base portion.

3. The hair comb according to claim 2, characterized in that, The length of the wall of the base portion forming the ventilation passage in the front-back direction is such that the wall of the center side of the base portion is longer than the wall of the outer side of the base portion.

4. The hair comb according to any one of claims 1 to 3, characterized in that, In the wall of the base portion forming the ventilation passage, the rear end of the wall on the central side of the base portion is inclined toward the outer side of the base portion.

5. The hair comb according to any one of claims 1 to 3, characterized in that, Multiple ridge-like undulations extending in the front-rear direction are formed on the wall surface of the base portion that forms the ventilation passage.

Images