Hairbrush

Abstract

To provide a hair brush capable of excellently rounding a bundle of hair.SOLUTION: The hair brush 1 includes the brush part 20 having the brush part body 21 and the brush bristles 22 extending from the brush part body 21, and the handle 30 having the central axis C extending in one direction and connected to the brush part 20, in which the brush bristles 22 are arranged in a row in a direction intersecting the virtual straight line V obtained by extending the central axis C, and the outermost brush bristles 22 among the brush bristles 22 arranged in a row are inclined toward the center of the row with respect to the virtual radiation St extending in the radiation direction from the virtual straight line V.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a hairbrush. [Background technology]

[0002] A conventional hairbrush is disclosed in Patent Document 1. The brush brush in Patent Document 1 has a configuration in which the brush bristles are spread radially by curving a flat brush base that is integrally molded with the brush bristles. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 8-84622 Summary of the Invention [Problem to be solved by the invention]

[0004] In the hairbrush of Patent Document 1, the brush bristles located at one end and the other end around the central axis of the brush base (hereinafter referred to as the "center brush bristles") extend in different directions relative to the brush bristles located in the center around the central axis of the brush base, and the tips of the brush bristles at the ends are positioned lower than the tip of the center brush bristles. Therefore, when the hairbrush of Patent Document 1 is held so that the center brush bristles are perpendicular to a straight strand of hair, the center brush bristles will enter the strand of hair, but the end brush bristles will have difficulty reaching the strand of hair, and there is a risk that the end brush bristles will not enter the strand of hair. For this reason, a technology that makes it easier for hair strands to enter evenly between the brush bristles has been desired.

[0005] The present invention has been made in view of the above-mentioned conventional circumstances, and has as its object to provide a hairbrush that can effectively curl a bundle of hair. [Means for solving the problem]

[0006] The hairbrush according to an embodiment of the present invention comprises: a brush part having a brush part body and brush bristles extending from the brush part body; a handle having a central axis extending in one direction and connected to the brush unit; Equipped with The brush bristles are aligned in a row in a direction intersecting an imaginary line extending from the central axis, The outermost brush bristles of the brush bristles arranged in the row are inclined toward the center of the row with respect to imaginary radial lines extending radially from the imaginary straight line.

[0007] With this configuration, of the brush bristles arranged in a row in a direction intersecting the imaginary line (hereinafter simply referred to as the brush bristles arranged in a row), the tips of the outermost brush bristles can be brought closer to the brush bristles located in the center, thereby bringing the height of the tips of the outermost brush bristles closer to the height of the brush bristles located in the center. Therefore, when the hairbrush of the present invention is placed against a bundle of hair, the outermost brush bristles as well as the brush bristles located in the center can easily reach the bundle of hair, and the outermost brush bristles can also easily penetrate the bundle of hair. This makes it possible for the hairbrush of the present invention to evenly utilize all of the brush bristles to curl the bundle of hair.

[0008] Therefore, the hairbrush of the present invention can curl hair strands well. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing a hairbrush according to a first embodiment. [Figure 2] FIG. [Figure 3] FIG. 2 is a partial cross-sectional side view showing the hairbrush. [Figure 4] FIG. 2 is a perspective view showing a substrate portion and brush bristles. [Figure 5] FIG. 4 is a partially enlarged front view showing a substrate portion and a portion of the brush bristles. [Figure 6]FIG. 2 is a plan view showing the substrate portion and brush bristles. [Figure 7] 4 is a cross-sectional view taken along the line AA in FIG. 3. [Figure 8] 4 is a cross-sectional view of FIG. 3 shown in FIG. [Figure 9] FIG. 2 is a plan view showing the hairbrush. DETAILED DESCRIPTION OF THE INVENTION

[0010] A preferred embodiment of the present invention will now be described.

[0011] In the hairbrush of the present invention, the degree of inclination of the bristles with respect to the virtual radial line may gradually increase from the center of the row of bristles toward the outside. In this case, all of the bristles can be aligned in the direction in which the bristles located in the center extend, making it easier for the hair bundle to be embedded in all of the bristles when the hairbrush is placed against hair.

[0012] In the hairbrush of the present invention, the brush body has a connecting surface where the bristles are connected and curved in the direction in which the bristles are arranged in a row, and the curvature of the connecting surface in the direction in which the bristles are arranged in a row may be greater than the curvature of an imaginary arc connecting the tips of the bristles in the row. In this case, when curling a hair bundle, the hair bundle can pass between the bristles while wrapping around the connecting surface, allowing the hair bundle to be curled well.

[0013] In the hairbrush of the present invention, the center of the imaginary arc can be shifted toward the tip of the bristles from the imaginary straight line. In this case, the tip of each bristles can be offset from the central axis of the handle, which makes it less likely that the hand gripping the handle will come into contact with the head where the hair bundle grows, making it easier to curl the hair bundle.

[0014] In the hairbrush of the present invention, the bristles may be of the same length, which allows the bristles to bend with the same ease, thereby providing a uniform feel when combing through the bristles.

[0015] In the hairbrush of the present invention, the handle may have a knob adjacent to the brush section. The knob, in a cross section perpendicular to the central axis, may have a linearly extending flat section and an uneven section formed on the surface around the central axis excluding the flat section. In this case, by placing a finger on the flat section, it is easy to intuitively grasp the direction of the bristles and therefore the posture of the hairbrush, and the uneven section improves the grip of the knob, making it easier to rotate the hairbrush around the central axis when curling a bundle of hair.

[0016] Example 1 A hairbrush 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 9. In the following description, for convenience, directions in the hairbrush 1 are defined as follows: The front-to-back direction in the hairbrush 1 is a direction parallel to the direction in which the bristles 22 protrude, with the direction toward the protruding ends of the bristles 22 defined as the front, and the direction toward the base ends defined as the rear. Regarding the up-down and left-to-right directions in the hairbrush 1, the direction perpendicular to the front-to-back direction is the extension direction of the handle 30, and the directions perpendicular to the front-to-back and up-to-down directions are defined as the left-to-right directions. The X-axis, Y-axis, and Z-axis in each figure indicate the front-to-back, left-to-right, and up-to-down directions, with the positive X-axis direction being the front, the positive Y-axis direction being the left, and the positive Z-axis direction being the up. Note that these directions do not define the actual directions of the hairbrush 1 when in use.

[0017] 1, the hairbrush 1 according to the first embodiment includes a brush head 20 and a handle 30. The brush head 20 includes a brush head body 21 and brush bristles 22.

[0018] [Brush unit configuration] The brush body 21 includes a mounting portion 21A and a base portion 21B. As shown in FIG. 2, when viewed from the front, the mounting portion 21A has a rectangular bottom wall 21T that is elongated in the vertical direction. The top wall 21Q, left and right side walls 21R, and bottom wall 21S extend forward from the outer edge of the bottom wall 21T. The top wall 21Q of the mounting portion 21A is inclined downward from the front to the rear (see FIG. 3). When viewed from above, the outer lateral surfaces of the left and right side walls 21R are curved in an arc shape that bulges outward in the horizontal direction (see FIG. 7). The arc shapes of the outer lateral surfaces are located on the same circumference (see FIG. 7). When viewed from above, the mounting portion 21A has a central portion in the horizontal direction that is located forward of both the left and right ends (see FIG. 7). In other words, the central portion of the mounting portion 21A is curved so as to bulge forward. This reduces the thickness of the brush part body 21 in the front-to-rear direction compared to when the left-to-right central part of the attachment part 21A bulges backward, thereby making the hairbrush 1 easier to handle.

[0019] The mounting portion 21A has a plurality of first locking claws 21C, a pair of second locking claws 21D, a clamped wall 21E, and a plurality of clamping ribs 21F. The plurality of first locking claws 21C are provided to protrude inward in the left-right direction from the inner left-right surfaces of both left and right side walls 21R of the mounting portion 21A. Each first locking claw 21C is formed long in the up-down direction. The plurality of first locking claws 21C are arranged in groups of three in the up-down direction on the inner left-right surfaces of both left and right side walls 21R of the mounting portion 21A.

[0020] A pair of second locking claws 21D are provided to protrude inward in the vertical direction from the inner vertical surfaces of the upper end wall 21Q and the lower end wall 21S of the mounting portion 21A. The held wall 21E is located in the left-right central portion of the bottom wall 21T of the mounting portion 21A and stands forward. The held wall 21E is formed to extend in the vertical direction with its plate thickness facing left-right. Three cross walls 21P are provided on the held wall 21E. These cross walls 21P have their plate thickness facing up-down and are arranged continuous with the upper end, the vertical central portion, and the lower end of the held wall 21E. Each cross wall 21P is arranged to extend outward in the horizontal direction from the held wall 21E. The cross wall 21P in the vertical central portion is arranged lower than the vertical center of the held wall 21E.

[0021] The multiple clamping ribs 21F rise forward from both left and right ends of the bottom wall 21T of the mounting portion 21A. Each clamping rib 21F is formed with its plate thickness facing the up-down direction. Each clamping rib 21F is arranged adjacent to each of the left and right side walls 21R of the mounting portion 21A so as to face each other from the inside in the left-right direction (see FIG. 7). Each clamping rib 21F is arranged to correspond to each of the first locking claws 21C. Each clamping rib 21F is arranged slightly below each of the first locking claws 21C.

[0022] [Configuration of the circuit board] As shown in FIG. 4, the base plate portion 21B has a semi-cylindrical shape. The outer peripheral surface of the base plate portion 21B is the connection surface 21N. That is, the brush portion main body 21 has the connection surface 21N. The connection surface 21N is arc-shaped with a predetermined radius (see FIG. 6). The base plate portion 21B is curved so as to bulge forward (see FIG. 6). Specifically, when viewed from the axial direction, the base plate portion 21B is curved so that the central portion in the left-right direction protrudes forward more than the both left-right end portions (see FIG. 6). The base plate portion 21B is detachable from the attachment portion 21A.

[0023] The base plate portion 21B is provided with a pair of hanging walls 21G, a pair of locking pieces 21H, and a pair of left and right clamping walls 21J. The pair of hanging walls 21G extend rearward from both left and right edges of the base plate portion 21B. The pair of hanging walls 21G are formed to extend vertically along both left and right edges of the base plate portion 21B. Each hanging wall 21G is flat with its thickness oriented in the left-right direction. Each hanging wall 21G is formed with a plurality of through holes 21K penetrating through the thickness direction. Each through hole 21K has a rectangular shape that is elongated in the vertical direction. In one hanging wall 21G, three through holes 21K are arranged vertically. Specifically, the through holes 21K are located at the upper end, the vertical center, and the lower end of the hanging wall 21G. Each through hole 21K corresponds to one of the first locking claws 21C of the mounting portion 21A.

[0024] A pair of locking pieces 21H protrude rearward from both vertical ends of the inner surface of the base plate portion 21B (the surface opposite the connecting surface 21N). Each locking piece 21H is formed with a locking hole 21L that penetrates vertically. Each locking hole 21L corresponds to a respective second locking claw 21D of the mounting portion 21A.

[0025] The pair of left and right clamping walls 21J protrude rearward from the center in the left-right direction on the inner surface of the base plate portion 21B (the surface opposite the connecting surface 21N). The pair of left and right clamping walls 21J are flat plates with their thicknesses oriented in the left-right direction and are arranged at a predetermined distance apart in the left-right direction. This allows the clamped wall 21E to be inserted and is expected to reinforce the base plate portion 21B. A dividing groove 21M is formed in the pair of left and right clamping walls 21J at a position lower than the center in the up-down direction, dividing the clamping wall 21J into an upper side and a lower side.

[0026] [Brush bristle configuration] The brush bristles 22 are molded integrally with the substrate 21B. That is, the brush bristles 22 extend from the substrate 21B, which is a part of the brush body 21. The brush bristles 22 and the substrate 21B are made of a synthetic resin that is resistant to static electricity. A plurality of brush bristles 22 extend upward from the connection surface 21N of the substrate 21B. The base end of each brush bristles 22 is connected to the connection surface 21N. The length dimension from the base end to the tip of each brush bristles 22 is the same (see FIG. 6). Here, the length dimension from the base end to the tip of each brush bristles 22 is defined by the length of the central axis of the brush bristles 22. The distance between the tips of adjacent brush bristles 22 in the left-right direction is approximately the same (see FIG. 6). As shown in FIG. 5, the brush bristles 22 are arranged in multiple rows (nine rows in this embodiment) of vertically aligned brush bristles 22A in the left-right direction of the connection surface 21N. The brush bristles 22 in the brush bristle rows 22A adjacent to each other in the left-right direction are arranged in a staggered manner in the up-down direction.

[0027] Each brush bristles 22 is tapered from its base, which connects to the connecting surface 21N, toward its tip (see FIG. 6). The protruding end of each brush bristles 22 is spherical, expanding toward the tip in the protruding direction. A flat, annular plane 22D is disposed around the bristles, extending perpendicularly to the central axis of the brush bristles 22. The plane 22D functions as a surface to be pressed by an ejector pin when the brush bristles 22 are released from the mold. Each brush bristles 22 has a pair of opposing surfaces 22B facing adjacent brush bristles 22 in the vertical direction, and an outer surface 22C connecting the outer edges of the pair of opposing surfaces 22B. Each brush bristles 22 has a flat shape in which the area of ​​each opposing surface 22B, as viewed from either the vertical direction, is larger than the area of ​​the outer surface 22C, as viewed from either the horizontal direction. This allows each brush bristles 22 to bend easily in the vertical direction but not easily in the horizontal direction. In a cross section perpendicular to the extension direction of each brush bristles 22, the facing surface 22B and the outer surface 22C of each brush bristles 22 are continuously formed by a curved surface that bulges outward. The cross section perpendicular to the extension direction of each brush bristles 22 is, for example, a marquise shape. Alternatively, the cross section perpendicular to the extension direction of each brush bristles 22 may be a rugby ball shape. In a cross section perpendicular to the extension direction of each brush bristles 22, the radius of curvature of the outer surface 22C is smaller than the radius of curvature of the facing surface 22B. In other words, in a cross section perpendicular to the extension direction of each brush bristles 22, the curvature of the outer surface 22C is larger than the curvature of the facing surface 22B. When viewed from above, an imaginary arc Cu connecting the tips of the brush bristles 22 arranged in a row forms an arc shape with a predetermined radius (see FIG. 7).

[0028] The integrally formed base plate portion 21B and brush bristles 22 are attached to the mounting portion 21A. First, the vertical orientation of the base plate portion 21B is adjusted so that the dividing grooves 21M of the pair of left and right clamping walls 21J are aligned with the position of the cross wall 21P at the vertical center of the clamped wall 21E (see FIG. 3). The dividing grooves 21M are positioned below the vertical center. This limits the vertical orientation of the base plate portion 21B relative to the mounting portion 21A to one direction. Then, as shown in FIG. 7, the base plate portion 21B is moved toward the mounting portion 21A from the front, and the hanging walls 21G are inserted between the left and right side walls 21R of the mounting portion 21A and the clamping ribs 21F. At the same time, the clamped wall 21E is inserted between the pair of left and right clamping walls 21J. Then, the base plate portion 21B is moved further toward the mounting portion 21A. As a result, the first locking claws 21C are locked into the through-holes 21K. At the same time, each second locking claw 21D locks into each locking hole 21L (see FIG. 3). In this way, the attachment of the base plate portion 21B and the brush bristles 22 to the attachment portion 21A is completed. The clamping rib 21F can prevent the hanging wall 21G from separating from both the left and right side walls 21R. As a result, the clamping rib 21F can prevent the second locking claws 21D from falling out of the locking holes 21L, and ultimately prevent the base plate portion 21B from falling out of the attachment portion 21A.

[0029] When the attachment of the base plate portion 21B and the brush bristles 22 to the attachment portion 21A is complete (hereinafter simply referred to as the attachment-completed state), both left and right side edges of the base plate portion 21B are adjacent to and face the upper ends of the left and right side walls 21R of the attachment portion 21A. The outer left and right surfaces of the left and right side walls 21R and the connection surface 21N of the base plate portion 21B are arranged on the same circumference. In addition, at this time, the tips (front ends) of the clamped walls 21E and each cross wall 21P are spaced apart from the inner surface of the base plate portion 21B in the front-to-rear direction. This allows room for the base plate portion 21B to elastically deform backward when pressed from the front, making it possible to soften the feel of the brush bristles 22 against human skin.

[0030] When viewed from above, the brush body 21 in the attached state is U-shaped with the left-right central portion bulging forward more than the left-right sides.

[0031] When the brush part body 21 in the fully attached state is viewed from above, the curvature of the connection surface 21N in the direction in which the brush bristles 22 are lined up in a row (left-right direction) is greater than the curvature of the imaginary arc Cu connecting the tips of the brush bristles 22 lined up in a row in the left-right direction. In other words, the radius of curvature of the connection surface 21N is smaller than the radius of curvature of the imaginary arc Cu. In the brush part body 21 in the fully attached state, the center Ca1 of the imaginary arc Cu is shifted toward the tips of the brush bristles 22 (front side) from an imaginary straight line V extending from the central axis C of the handle 30, which will be described later.

[0032] [Handle Configuration] As shown in FIG. 1, the handle 30 extends downward, continuing from the lower end of the attachment portion 21A of the brush head 20. The handle 30 is cylindrical and extends in the vertical direction. As shown in FIG. 3, the handle 30 has a central axis C. The central axis C extends in one direction, the vertical direction. The handle 30 is formed so that the central portion in the vertical direction is more bulging than the upper and lower ends, and the outer diameter decreases toward the lower end. The lower end of the handle 30 is formed in a spherical shape that bulges downward. The lower end of the handle 30 can be inserted into hair and used to separate the strands of hair against which the hairbrush 1 is applied. The handle 30 is formed so that the outer diameter decreases toward the upper end, and then increases again toward the upper end.

[0033] The handle 30 has a knob 30A. The knob 30A is located at the upper end of the handle 30, adjacent to the brush part 20. The knob 30A is located at the upper end of the handle 30. The knob 30A is formed in a knob-like shape with the vertical center being narrower than the upper and lower ends. The knob 30A has a flat portion 30B and an uneven portion 30C.

[0034] As shown in Fig. 8, the flat portion 30B is formed to extend linearly in a cross section of the knob portion 30A perpendicular to the central axis C (hereinafter simply referred to as an orthogonal cross section). The surface of the flat portion 30B faces forward. In other words, the surface of the flat portion 30B faces forward together with the connection surface 21N of the base portion 21B (see Fig. 3). When the knob portion 30A is viewed from either the left or right, the flat portion 30B is curved and recessed so that the central portion in the up-down direction is located further rearward than the upper and lower ends (see Fig. 3).

[0035] In the orthogonal cross section, the uneven portion 30C is formed unevenly on the surface around the central axis C, excluding the flat portion 30B. Specifically, the uneven portion 30C has a plurality of grooves 30D extending in the vertical direction, lined up in the circumferential direction of the gripping portion 30A. Each groove 30D is deepest at the center in the vertical direction and gradually becomes shallower toward the upper and lower ends. The uneven portion 30C is formed such that each groove 30D and the circular surface of the gripping portion 30A form an uneven shape relative to each other. The distance between adjacent grooves 30D in the uneven portion 30C is the same.

[0036] As shown in Figure 9, when the hairbrush 1 formed in this manner is viewed from above, the bristles 22 are aligned in a row in a direction perpendicular to the imaginary line V. When the hairbrush 1 is viewed from above, the center Ca2 of the arc formed by the connecting surface 21N coincides with the imaginary line V. When the hairbrush 1 is viewed from above, the connecting surface 21N is curved in the direction in which the bristles 22 are connected and aligned in a row.

[0037] When the hairbrush 1 is viewed from above, of the brush bristles 22 arranged in a row perpendicular to the imaginary line V, the outermost brush bristles 22 in the left-right direction are inclined toward the center of the row of brush bristles 22 with respect to imaginary radial lines St extending radially from the imaginary line V. Here, each imaginary radial line St is a line that is perpendicular to the imaginary line V and passes through the center of the base end of each brush bristles 22 (the center of gravity of the base end surface). When the hairbrush 1 is viewed from above, the degree of inclination of each brush bristles 22 with respect to each imaginary radial line St gradually increases from the center of the row of brush bristles 22 toward the outside. In other words, the extension direction of each brush bristles 22 is biased so that it converges toward the center in the left-right direction facing forward with respect to the radial direction from the imaginary line V. Therefore, the front-rear direction position of the tips of all the brush bristles 22 approaches the front-rear direction position of the tip of the brush bristles 22 located at the center of the row. For example, as shown in Figure 7, when hairbrush 1 is placed against hair bundle H extending in one direction with the bristles 22 located in the center of the line extending perpendicular to the hair bundle H, not only the bristles 22 located in the center but all of the bristles 22 can enter the hair bundle H.

[0038] For example, in this Example 1, the degree of inclination of each brush bristles 22 with respect to each imaginary radial line St decreases from the outermost side toward the center in the left-right direction, from 21.84°, 17.01°, 11.4°, and 5.19°, as shown in Fig. 9. Also, the degree of inclination of each brush bristles 22 with respect to a second imaginary line V2 extending in the left-right direction from the imaginary line V increases from the outermost side toward the center in the left-right direction, from 48.42°, 58.78°, 69.67°, and 80°.

[0039] As described above, the hairbrush 1 of Example 1 comprises a brush section 20 having a brush section main body 21 and brush bristles 22 extending forward from the brush section main body 21, and a handle 30 having a central axis C extending in one direction and connected to the brush section 20, the brush bristles 22 being arranged in a row in a direction perpendicular to an imaginary straight line V which is an extension of the central axis C, and the outermost brush bristles 22 of the brush bristles 22 are inclined toward the central brush bristles 22 of the brush bristles 22 arranged in the row with respect to an imaginary radial line St which extends radially from the imaginary straight line V.

[0040] With this configuration, of the brush bristles 22 lined up in a row, the tips of the outermost brush bristles 22 can be brought closer to the brush bristles 22 located in the center, thereby bringing the front-to-rear position of the tips of the outermost brush bristles 22 closer to the front-to-rear position of the brush bristles 22 located in the center. Therefore, when the hairbrush 1 is placed against the hair bundle H so that the brush bristles 22 located in the center are perpendicular to the hair bundle H, the outermost brush bristles 22 as well as the brush bristles 22 located in the center can easily reach the hair bundle H, and the outermost brush bristles 22 can also easily enter the hair bundle H. This allows the hairbrush 1 to use all of the brush bristles 22 evenly to curl the hair bundle H.

[0041] Therefore, the hairbrush 1 of Example 1 can curl the hair bundle H well.

[0042] The degree of inclination of the brush bristles 22 with respect to the imaginary radial line St gradually increases from the center toward the outside in the direction in which the brush bristles 22 are lined up in a row (the direction perpendicular to the imaginary line V). With this configuration, all of the brush bristles 22 can be aligned in the direction in which the central bristles 22 extend, and when the hairbrush 1 is placed against a hair bundle H, all of the brush bristles 22 can easily fit into the hair bundle H.

[0043] The brush body 21 has a connecting surface 21N that connects the bristles 22 and curves in the direction in which the bristles 22 are aligned, and the curvature of the connecting surface 21N in the direction in which the bristles 22 are aligned is greater than the curvature of an imaginary arc Cu that connects the tips of the aligned bristles 22. With this configuration, when curling the hair bundle H, the hair bundle H can pass between the brush bristles 22 while wrapping around the connecting surface 21N, allowing the hair bundle H to be curled well.

[0044] The center Ca1 of the imaginary arc Cu is shifted toward the tip (front) of the brush bristles 22 from the imaginary straight line V. With this configuration, the tip of each brush bristles 22 can be offset forward from the central axis C of the handle 30, making it less likely that the hand gripping the handle 30 will hit the head where the hair bundle grows, making it easier to curl the hair bundle.

[0045] The bristles 22 of the hairbrush 1 are all the same length. With this configuration, the bristles 22 can be made to bend with the same ease, so that the bristles 22 all provide a uniform feel when combing.

[0046] The handle 30 has a knob 30A adjacent to the brush head 20, and in a cross section perpendicular to the central axis C, the knob 30A has a flat portion 30B extending linearly and an uneven portion 30C formed unevenly on the surface around the central axis C excluding the flat portion 30B. With this configuration, by placing a finger on the flat portion 30B, it is easy to intuitively grasp the orientation of the brush bristles 22 and, therefore, the posture of the hairbrush 1, and the uneven portion 30C improves the grip of the knob 30A, making it easy to rotate the hairbrush 1 around the central axis C when curling the hair bundle H. Furthermore, because the flat portion 30B and the uneven portion 30C are aligned on the same circumference around the central axis C, it is possible to smoothly switch between placing a finger on the flat portion 30B and placing a finger on the uneven portion 30C.

[0047] The present invention is not limited to the first embodiment described above with reference to the drawings, and the following embodiments are also included within the technical scope of the present invention. (1) Unlike the first embodiment, only the outermost bristles of the bristles arranged in a row may be inclined with their tips inclined toward the center of the row of bristles with respect to the imaginary radial line. (2) Unlike the first embodiment, the center of the virtual arc may be aligned with the virtual line. (3) Unlike the first embodiment, flat portions may be provided at multiple locations around the central axis. (4) Unlike Example 1, the length of the brush bristles may be varied. For example, the length of the brush bristles may be gradually increased toward the outside in the direction in which the brush bristles are arranged in a row, or the length of the brush bristles may be gradually decreased toward the outside in the direction in which the brush bristles are arranged in a row. (5) Unlike Example 1, the uneven portion may be formed in a dimple shape or a polygonal depression. Furthermore, the uneven portion may be formed by providing spherical protrusions or rib-like protrusions, or a combination of the above-listed shapes. Furthermore, the gripping portion may be formed of rubber or the like to ensure gripping performance without providing an uneven portion. Furthermore, the flat portion may be formed so that the center is slightly recessed or slightly bulged in the cross section perpendicular to the central axis. (6) There are no restrictions on the materials of the mounting part and the handle; they may be made of synthetic resin, metal, wood, or a combination of these materials. (7) Unlike Example 1, ventilation holes may be formed in the brush head body in the front-to-rear direction. In this case, the air generated by the dryer can be directed to the hair bundle through the ventilation holes, so that the air generated by the dryer can be evenly directed to the hair bundle. (8) Unlike the first embodiment, the brush bristles may be aligned in a row not only in a direction perpendicular to the imaginary line but also in a direction intersecting the imaginary line. [Explanation of symbols]

[0048] 1. Hairbrush 20...Brush section 21...Brush body 21N...Connection surface 22...Brush bristles 30...Handle 30A...knob 30B…Flat area 30C…Uneven part C…Central axis Ca1: Center of the virtual arc Cu...virtual arc St…Virtual Radiation V...imaginary line

Claims

1. a brush part having a brush part body and brush bristles extending from the brush part body; a handle having a central axis extending in one direction and connected to the brush unit; Equipped with The brush bristles are aligned in a row in a direction intersecting an imaginary line extending from the central axis, The hairbrush, wherein the outermost brush bristles among the brush bristles arranged in the row are inclined toward the center of the row with respect to an imaginary radial line extending radially from the imaginary straight line.

2. 2. The hairbrush of claim 1, wherein the degree of inclination of the bristles relative to the imaginary radial line gradually increases from the center toward the outside in the direction in which the bristles are aligned.

3. the brush body has a connection surface to which the brush bristles are connected and which curves in the direction in which the brush bristles are arranged in a row, 3. The hairbrush according to claim 1, wherein the curvature of the connecting surface in the direction in which the brush bristles are arranged in a row is greater than the curvature of an imaginary arc connecting the tips of the brush bristles arranged in a row.

4. The hairbrush according to claim 3 , wherein the center of the imaginary arc is shifted toward the tip of the brush bristles from the imaginary straight line.

5. 3. The hairbrush of claim 1, wherein each of the bristles has the same length.

6. The handle has a knob portion located adjacent to the brush portion, The knob portion has a flat portion extending linearly in a cross section perpendicular to the central axis, an uneven portion formed unevenly on a surface around the central axis excluding the flat portion; The hairbrush according to claim 1 or claim 2, comprising:

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