Brush

Abstract

Provided is a brush which can have different fitting feelings. The brush is provided with a plurality of first needles (12) and a plurality of second needles (13) protruding from a brush surface (11), and the curvature radii (R1, R3) of first imaginary lines (S1, S3) formed by the protruding ends (12E) of the plurality of first needles (12) are different from the curvature radii (R2, R4) of second imaginary lines (S2, S4) formed by the protruding ends (13E) of the plurality of second needles (13).

Description

Technical Field

[0001] The invention relates to a brush. Background Art

[0002] Conventionally, there is known a brush for brushing human hair, animal hair, or the like (for example, described in Patent Document 1 listed below).

[0003] Prior art literature Patent Literature Patent Document 1: Japanese Patent Application Publication No. 2020-81854 Summary of the invention Problem that the invention aims to solve In the above-mentioned brushes, it is desired to achieve a variety of fit feelings.

[0004] The present invention has been made based on the above circumstances, and an object of the present invention is to provide a brush having a variety of fit feelings.

[0005] Means used to solve problems The brush of the present invention has a plurality of first pins and a plurality of second pins protruding from a brush surface, and a first imaginary line formed by the protruding ends of the plurality of first pins has a different curvature radius from a second imaginary line formed by the protruding ends of the plurality of second pins.

[0006] Effects of the Invention According to the present invention, since the shape of the protruding end of the first needle that is easy to fit to the scalp is different from the shape of the protruding end of the second needle that is easy to fit to the scalp, various fit feelings can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 1 is a front view showing the brush in this embodiment.

[0008] Figure 2 is a side view showing the brush.

[0009] Figure 3 is a top view showing the brush.

[0010] Figure 4 is a cross-sectional view showing a brush, which is equivalent to Figure 1 Cross-sectional view of the section at the AA position.

[0011] Figure 5 is a cross-sectional view showing a brush, which is equivalent to Figure 4 A cross-sectional view of the section at the BB position.

[0012] Figure 6 is a cross-sectional view showing a brush, which is equivalent to Figure 4 Cross-sectional view of the section at the CC position.

[0013] Figure 7 It is a perspective view showing a state where a brush is placed on a placement seat.

[0014] Figure 8 It is a perspective view showing a state where the brush is placed on the placement seat. DETAILED DESCRIPTION

[0015] Preferred embodiments of the present invention are as follows.

[0016] [1] The brush of the present invention has a plurality of first needles and a plurality of second needles protruding from a brush surface, wherein the curvature radius of a first imaginary line formed by the protruding ends of the plurality of first needles is different from the curvature radius of a second imaginary line formed by the protruding ends of the plurality of second needles. According to this structure, since the shape of the protruding ends of the first needles that is easy to fit to the scalp is different from the shape of the protruding ends of the second needles that is easy to fit to the scalp, a variety of fit feelings can be achieved.

[0017] [2] According to the brush described in [1] above, the protruding end of the first needle may be located closer to the front end of the protruding direction than the protruding end of the second needle, and the first needle may be more easily bent than the second needle. According to this structure, since the first needle is easily bent according to the shape of the part to be scrubbed, it is easy to fit the part to be scrubbed. Since the second needle is easy to strongly abut against the part to be scrubbed, it is easy to massage the part to be scrubbed. Therefore, it is possible to achieve a good fit and also to perform massage appropriately.

[0018] [3] In the brush described in [1] or [2] above, the radius of curvature of the first imaginary line may be smaller than the radius of curvature of the second imaginary line. According to this structure, since the protruding end of the first needle is easier to fit the shape of the target part than the protruding end of the second needle, the fit can be improved.

[0019] [4] According to the brush described in any one of [1] to [3] above, the protruding end of the first needle may be located closer to the front end side of the protruding direction than the protruding end of the second needle, the first needle and the second needle are made of substantially the same material, and the first needle is thinner than the second needle. In essence, it means that as long as the effect of the invention is achieved, it is the same even if there is a slight difference in the components. According to this structure, since the first needle is easy to bend according to the shape of the part to be scrubbed, it is easy to fit the part to be scrubbed. Since the second needle is easy to strongly abut against the part to be scrubbed, it is easy to massage the part to be scrubbed. Therefore, while a good sense of fit can be achieved, massage can also be performed appropriately.

[0020] [5] The brush according to any one of [1] to [4] above, wherein the brush surface has a convex portion and a concave portion, the length of the first needle is the same as the length of the second needle, the first needle protrudes from the convex portion, and the second needle protrudes from the concave portion. According to this structure, the position of the protruding end of the first needle and the position of the protruding end of the second needle can be changed using the first needle and the second needle of the same length.

[0021] [6] According to the brush described in [5] above, the convex parts and the concave parts may extend linearly in a first direction and be alternately arranged in a second direction orthogonal to the first direction. According to this structure, water can easily flow along the concave parts extending linearly, so that moisture on the brush surface can be removed well. Therefore, the brush can be used hygienically.

[0022] [7] The brush according to any one of [1] to [6] above, wherein the first needle and the second needle are arranged on the brush surface in a first direction and in a second direction orthogonal to the first direction, and the center of the first imaginary line and the second imaginary line extending in the first direction in the first direction is recessed rearwardly than the two end portions in the first direction. According to this structure, the protruding ends of the first needle and the protruding ends of the second needle can be easily attached to the head of a person.

[0023] [8] The brush according to any one of [1] to [7] above may be configured such that the first needle and the second needle are arranged on the brush surface in a first direction and in a second direction orthogonal to the first direction, and the center of the first imaginary line and the second imaginary line extending in the second direction in the first imaginary line and the second imaginary line in the second direction protrudes toward the front end side more than both ends in the second direction. According to this structure, the protruding ends of the first needle and the second needle can be easily attached to the back of the neck of a person.

[0024] <Example> Below, while referring to Figures 1 to 8 While describing in detail an embodiment of the present invention. The brush 10 in this embodiment is mainly used for brushing human hair. Figure 1 As shown, the brush 10 has a plurality of first needles 12 and a plurality of second needles 13 protruding from a brush surface 11 toward the front side.

[0025] In the following, in each structural member, the front end side of the protruding direction of the first needle 12 and the second needle 13 is referred to as the front side, and the opposite side thereof is referred to as the rear side. Figure 1The upper side of the brush surface 11 is taken as the upper side, the lower side is taken as the lower side, the right side when the brush surface 11 is viewed from the front is taken as the right side, and the left side is taken as the left side. In each figure, the positive direction side of the X axis represents the right side, the negative direction side of the X axis represents the left side, the positive direction side of the Y axis represents the upper side, the negative direction side of the Y axis represents the lower side, the positive direction side of the Z axis represents the front side, and the negative direction side of the Z axis represents the rear side. The X axis is parallel to the left-right direction. The Y axis is parallel to the up-down direction. The Z axis is parallel to the center axis of the first needle 12 and the second needle 13.

[0026] like Figure 1 As shown in FIG. 1 , when viewed from the front side, the brush surface 11 is heart-shaped. The portion of the brush 10 other than the brush surface 11 is a grip portion 15 (see FIG. 1 ). Figure 2 and Figure 3 ). The brush 10 is moved by holding the holding portion 15 by hand to brush hair, etc. The holding portion 15 is formed of, for example, ABS resin.

[0027] A plurality of drainage holes 27, 28, and 29 are opened on the brush surface 11. The drainage holes 27, 28, and 29 are respectively connected to the internal space of the brush 10. When viewed from the front side, the drainage holes 27 and 28 extend slenderly along the outer peripheral edge of the brush surface 11. A pair of drainage holes 27 are provided in the upper area of ​​the brush surface 11. The left and right drainage holes 27 are bent along the left and right corners of the brush surface 11. A pair of drainage holes 28 are provided in the lower area of ​​the brush surface 11. The left and right drainage holes 28 extend obliquely along the left and right edges of the brush surface 11. A drainage hole 29 is provided at the lower end of the brush surface 11. The drainage hole 29 is located at the center of the brush surface 11 in the left-right direction. The drainage holes 27, 28, and 29 are symmetrical with respect to the left-right center of the brush surface 11.

[0028] The maximum dimension H of the brush 10 in the vertical direction is slightly larger than the maximum dimension W of the brush 10 in the horizontal direction. The long side direction of the brush 10 is the vertical direction, and the short side direction of the brush 10 is the horizontal direction. Figure 3 As shown, the front-rear dimension DR of the right side of the brush 10 is larger than the front-rear dimension DL of the left side. The brush 10 can be held by pinching the left and right sides of the grip 15 with the thumb and fingers.

[0029] When viewed from the front and back sides, the grip 15 is heart-shaped like the brush surface 11. The grip 15 is formed by a continuous curved surface. The center of the upper surface 14 of the grip 15 in the left-right direction is recessed downward. The left-right dimension of the grip 15 decreases toward the lower end.

[0030] The first needle 12 and the second needle 13 are parallel to each other. Figure 2 and Figure 3As shown, the position of the protruding end 12E of the first needle 12 is different from the position of the protruding end 13E of the second needle 13 in the front-to-back direction. The protruding end 12E of each first needle 12 is located at a position higher than the protruding end 13E of the second needle 13 adjacent to the upper and lower sides when viewed from the side (see Figure 2 ) and the protruding end 13E of the second needle 13 adjacent to the left and right when viewed from above (refer to Figure 3 ) is located further forward.

[0031] The first needle 12 and the second needle 13 are each formed in a conical shape that tapers from the brush surface 11 toward the protruding ends 12E and 13E. The diameter size φ1 of the first needle 12 and the diameter size φ2 of the second needle 13 are each formed so as to decrease from the brush surface 11 toward the protruding ends 12E and 13E (see Figure 1 ). A hemispherical protrusion 16 is provided at the protruding end 12E of the first needle 12 and the protruding end 13E of the second needle 13, respectively.

[0032] like Figure 1 and Figure 3 As shown, the first needle 12 is thinner than the second needle 13. The diameter φ1 of the rear end of the first needle 12 is preferably greater than 0.5 mm and less than 0.9 mm, and more preferably greater than 0.78 mm and less than 0.82 mm. The diameter φ1 of the rear end of the first needle 12 can be 0.8 mm. The diameter φ2 of the rear end of the second needle 13 is preferably greater than 0.9 mm and less than 1.5 mm, and more preferably greater than 0.98 mm and less than 1.02 mm. The diameter φ2 of the rear end of the second needle 13 can be 1.0 mm. The first needle 12 is easier to bend than the second needle 13. Because the first needle 12 is easy to fall down due to a small axial force, it is suitable for washing the scalp. Because the second needle 13 is not easy to fall down even if it is subjected to a large axial force, it is suitable for massaging the scalp or combing the hair.

[0033] like Figure 1 As shown, the first needles 12 and the second needles 13 are arranged in parallel at a certain interval in the vertical direction (first direction) and the horizontal direction (second direction) on the brush surface 11 .

[0034] If viewed from the front, Figure 1As shown, the protruding end 12E of the first needle 12 is arranged on a plurality of imaginary straight lines V1 extending in the vertical direction. If viewed from the front side, the protruding end 13E of the second needle 13 is arranged on a plurality of imaginary straight lines V2 extending in the vertical direction. The imaginary straight lines V1 and V2 are parallel. The imaginary straight lines V1 and V2 are arranged alternately in the left-right direction. An imaginary straight line V1 is located at the center of the brush 10 in the left-right direction. The imaginary straight line V1 is located at the center of the imaginary straight lines V2 adjacent to each other in the left-right direction. The imaginary straight lines V1 are arranged at equal intervals in the left-right direction, and the imaginary straight lines V2 are arranged at equal intervals in the left-right direction. The first needle 12 and the second needle 13 are arranged alternately in a row longitudinally at equal intervals in the left-right direction.

[0035] If viewed from the front, Figure 1 As shown, the protruding end 12E of the first needle 12 is arranged on a plurality of imaginary straight lines V3 extending in the left-right direction. If viewed from the front side, the protruding end 13E of the second needle 13 is arranged on a plurality of imaginary straight lines V4 extending in the left-right direction. The imaginary straight lines V3 and V4 are parallel. The imaginary straight lines V3 and V4 are arranged alternately in the up-down direction. The imaginary straight line V3 is located at the center of the imaginary straight lines V4 adjacent to each other in the up-down direction. The imaginary straight lines V3 are arranged at equal intervals in the up-down direction, and the imaginary straight lines V4 are arranged at equal intervals in the up-down direction. The first needle 12 and the second needle 13 are arranged alternately in a row in the horizontal direction at equal intervals in the up-down direction.

[0036] like Figure 4 As shown, the length dimension L1 of the first needle 12 is the same as the length dimension L2 of the second needle 13. "The same" means the same within a range taking into account the tolerance (±0.2 mm). The length dimension L1 of the first needle 12 is the length dimension from the lower end of the first needle 12 to the protruding end 12E of the central axis. The length dimension L2 of the second needle 13 is the length dimension from the lower end of the second needle 13 to the protruding end 13E of the central axis. The length dimensions L1 and L2 of the first needle 12 and the second needle 13 are smaller than the maximum dimension DC in the front-to-back direction of the gripping portion 15 (refer to Figure 3 The length L1 and L2 of the first needle 12 and the second needle 13 are preferably 10 mm to 30 mm, and more preferably 16 mm to 18 mm. The length L1 and L2 of the first needle 12 and the second needle 13 may be 17 mm.

[0037] like Figure 4As shown, the first needle 12 protrudes from the convex portion 17 of the brush surface 11. The second needle 13 protrudes from the concave portion 18 of the brush surface 11. The convex portions 17 and the concave portions 18 are arranged alternately in the left-right direction from near the left end to near the right end of the brush surface 11. The left-right dimension of each convex portion 17 decreases toward the front end 17E of the convex portion. The center axis of the first needle 12 passes through the front end 17E of the convex portion. The left and right side surfaces of the convex portion 17 form the concave portion 18. The left-right dimension of each concave portion 18 decreases toward the rear end 18E of the concave portion. The center axis of the second needle 13 passes through the rear end 18E of the concave portion.

[0038] like Figure 1 As shown in FIG. 1 , the convex portion 17 and the concave portion 18 extend linearly in the vertical direction from the vicinity of the upper end to the vicinity of the lower end of the brush surface 11. Figure 5 As shown in FIG. 1 , the front end 17E of the protrusion is gently curved. The center portion of the front end 17E of the protrusion in the vertical direction is recessed toward the rear side compared to the two ends in the vertical direction. Figure 6 As shown, the concave rear end 18E is more gently curved than the convex front end 17E (see Figure 5 ). The center portion of the recessed portion rear end 18E in the vertical direction is slightly recessed to the rear side than both ends in the vertical direction.

[0039] like Figure 5 and Figure 6 As shown, the protruding ends 12E of the first needles 12 arranged in the vertical direction form a first imaginary line S1 extending in the vertical direction. The first imaginary line S1 is an imaginary line connecting the protruding ends 12E of the first needles 12 arranged in the vertical direction. The first imaginary line S1 is curved.

[0040] like Figure 5 and Figure 6 As shown, the protruding ends 13E of the second needles 13 arranged in the vertical direction form a second imaginary line S2 extending in the vertical direction. The second imaginary line S2 is an imaginary line connecting the protruding ends 13E of the second needles 13 arranged in the vertical direction. The second imaginary line S2 is curved.

[0041] like Figure 5 and Figure 6 As shown in FIG. 1 , the first imaginary line S1 and the second imaginary line S2 are curved shapes that are easy to fit the head. Specifically, the first imaginary line S1 and the second imaginary line S2 are curved shapes that are concave toward the rear. The central parts of the first imaginary line S1 and the second imaginary line S2 in the vertical direction are located at a position further to the rear than the two ends in the vertical direction. The centers of the first imaginary line S1 and the second imaginary line S2 in the vertical direction are located at the rearmost positions on the imaginary lines S1 and S2.

[0042] The first imaginary line S1 has a smaller curvature radius R1 than the second imaginary line S2. The second imaginary line S2 is closer to a flat surface than the first imaginary line S1. The first imaginary line S1 is parallel to the convex front end 17E. The second imaginary line S2 is parallel to the concave rear end 18E.

[0043] The curvature radius R1 of the first imaginary line S1 is preferably greater than or equal to 80 mm and less than or equal to 300 mm. The curvature radius R1 of the first imaginary line S1 is smallest at the left-right center of the brush surface 11 and largest at the left-right ends of the brush surface 11. The curvature radius R1 of the first imaginary line S1 at the left-right center of the brush surface 11 is 133 mm. The curvature radius R1 of the first imaginary line S1 at the left-right ends of the brush surface 11 is 256 mm.

[0044] The curvature radius R2 of the second imaginary line S2 is preferably greater than or equal to 301 mm and less than or equal to 2000 mm. The curvature radius R2 of the second imaginary line S2 is smallest at the left-right center of the brush surface 11 and largest at the left-right ends of the brush surface 11. The curvature radius R2 of the second imaginary line S2 near the left and right center of the brush surface 11 is 413 mm. The curvature radius R2 of the second imaginary line S2 near the left and right ends of the brush surface 11 is 1457 mm.

[0045] like Figure 4 As shown, the protruding ends 12E of the first needles 12 arranged in the left-right direction form a first imaginary line S3 extending in the left-right direction. The first imaginary line S3 is an imaginary line connecting the protruding ends 12E of the first needles 12 arranged in the left-right direction. The first imaginary line S3 is curved.

[0046] like Figure 4 As shown, the protruding ends 13E of the second needles 13 arranged in the left-right direction form a second imaginary line S4 extending in the left-right direction. The second imaginary line S4 is an imaginary line connecting the protruding ends 13E of the second needles 13 arranged in the left-right direction. The second imaginary line S4 is curved.

[0047] like Figure 4 As shown in FIG. 1 , the first imaginary line S3 and the second imaginary line S4 are curved shapes that are easy to fit the back of the neck. Specifically, the first imaginary line S3 and the second imaginary line S4 are curved shapes that bulge toward the front. The central part of the first imaginary line S3 and the second imaginary line S4 in the left-right direction is located at a position closer to the front side than the two ends in the left-right direction. The first imaginary line S3 and the second imaginary line S4 are symmetrical with respect to the center in the left-right direction.

[0048] The curvature radius R3 of the first imaginary line S3 is smaller than the curvature radius R4 of the second imaginary line S4. The second imaginary line S4 is closer to a flat surface than the first imaginary line S3. On the XZ plane, the imaginary line connecting the front end 17E of the convex portion is parallel to the first imaginary line S3, and the imaginary line connecting the rear end 18E of the concave portion is parallel to the second imaginary line S4.

[0049] The radius of curvature R3 of the first imaginary line S3 is preferably greater than 100 mm and less than 300 mm. The radius of curvature R3 of the first imaginary line S3 is largest near the center of the brush surface 11 in the vertical direction and smallest near the lower end of the brush surface 11. The radius of curvature R3 of the first imaginary line S3 near the center of the brush surface 11 in the vertical direction is 241 mm. The radius of curvature R3 of the first imaginary line S3 near the lower end of the brush surface 11 is 163 mm.

[0050] The curvature radius R4 of the second imaginary line S4 is preferably not less than 170 mm and not more than 1000 mm. The curvature radius R4 of the second imaginary line S4 at the lower end of the brush surface 11 is the largest, which is 862 mm. The curvature radius R4 of the second imaginary line S4 formed by the second needle 13 one row higher than the lower end of the brush surface 11 is the smallest, which is 174 mm.

[0051] The protruding ends 12E of all the first needles 12 form a first imaginary plane that is curved into a spherical shape. The first imaginary plane includes all the first imaginary lines S1 and S3. The protruding ends 13E of all the second needles 13 form a second imaginary plane. The second imaginary plane is curved and has a spherical shape that is gentler than the first imaginary plane. The second imaginary plane includes all the second imaginary lines S2 and S4.

[0052] like Figure 4 As shown, the brush 10 is formed by installing a first part 21, a second part 22, and a third part 23. The first part 21 forms a brush surface 11. The first part 21 integrally has the brush surface 11, the first needle 12, and the second needle 13. The rear surface of the first part 21 has the same concave-convex shape as the brush surface 11. Specifically, the rear surface of the first part 21 is formed with the same convex and concave parts as the brush surface 11.

[0053] The second part 22 is in the shape of a container with an open front side. The front side of the second part 22 is blocked by the first part 21. The inside of the second part 22 and the first part 21 forms a cavity. The third part 23 covers the entire outer surface of the second part 22. The outer surface of the third part 23 forms an appearance surface.

[0054] like Figure 7 and Figure 8 As shown, the brush 10 has a placement seat 24. The placement seat 24 has a seat portion 25 and a frame portion 26. The seat portion 25 and the frame portion 26 are formed integrally. The lower surface of the seat portion 25 is horizontal. The frame portion 26 is shaped along the outer periphery of the grip portion 15. Figure 7As shown by the arrow, the brush 10 is fitted into the frame 26 from the rear side. The frame 26 is locked with the outer peripheral edge of the grip 15. When viewed from the left and right directions, the frame 26 stands obliquely forward from the seat 25. The upper end of the frame 26 is located at a position closer to the front side than the lower end of the frame 26. When the brush 10 is placed on the placement seat 24, the brush surface 11 is maintained in a state facing obliquely downward. When the brush 10 is used, Figure 8 In the state shown, the user holds the gripping portion 15 and lifts the brush 10 obliquely to the rear. Thus, the brush 10 is separated from the placement seat 24 and is used for scrubbing.

[0055] The brush 10 can be used when washing hair. In this case, water may sometimes penetrate into the inside of the brush 10. When the brush 10 is placed on the placement seat 24, the water that has entered the inside of the brush 10 flows down along the recessed portion of the rear surface of the first part 21 and is discharged from the drainage holes 28 and 29 provided in the lower area of ​​the brush surface 11. At this time, since air can easily flow into the inside of the brush 10 from the left and right drainage holes 27 provided in the upper area of ​​the brush surface 11, the drainage function can be improved. In addition, since the inside of the brush 10 and the outside of the brush 10 are connected through the plurality of drainage holes 27, 28, and 29, the outside air can easily flow into the inside of the brush 10. As a result, the inside of the brush 10 can be easily dried.

[0056] The use example of the brush 10 of this embodiment is described. The grip portion 15 is held, and the brush 10 is pressed against the head. First, the protruding end 12E of the first needle 12 is pressed against the head. The first needle 12 is elastically bent according to the shape of the user's head and fits the head. Furthermore, if the brush 10 is pressed strongly against the head, the protruding end 13E of the second needle 13 is pressed against the head. At this time, because the curvature radius R2 of the second imaginary line S2 is greater than the curvature radius R1 of the first imaginary line S1, the protruding end 13E of the second needle 13 located at both ends of the brush surface 11 in the vertical direction will not be pressed against the head too strongly. On the other hand, the protruding end 13E of the second needle 13 located in the central part of the brush surface 11 in the vertical direction can be pressed against the head strongly. Thus, the scalp can be properly massaged. In addition, by appropriately moving the brush 10, the hair can be combed. Because the second needle 13 is difficult to bend, it is easy to pass through the entangled hair. Therefore, the hair can be combed appropriately.

[0057] Holding the gripping portion 15, the brush 10 is pressed against the back of the neck. When the brush 10 is pressed against the back of the neck, the brush 10 is pressed against the back of the neck in a manner that the up-down direction faces the left-right direction of the back of the neck. The first needle 12 is elastically bent according to the shape of the back of the neck and fits the back of the neck. Furthermore, if the brush 10 is strongly pressed against the back of the neck, the protruding end 13E of the second needle 13 is pressed against the back of the neck. At this time, because the protruding ends 12E and 13E of the first needle 12 and the second needle 13 located at the left and right edges of the brush surface 11, in other words, located at the upper and lower sides of the back of the neck, are recessed, it is possible to prevent the brush from pressing too strongly against the upper and lower parts of the back of the neck.

[0058] According to the embodiment constructed as described above, the following effects are achieved. The brush 10 has a plurality of first needles 12 and a plurality of second needles 13 protruding from the brush surface 11 to the front side. The curvature radii R1 and R3 of the first imaginary line S1 formed by the protruding ends 12E of the plurality of first needles 12 are different from the curvature radii R2 and R4 of the second imaginary line S2 formed by the protruding ends 13E of the plurality of second needles 13. According to this structure, since the shape of the protruding ends 12E of the first needles 12 that is easy to fit to the scalp is different from the shape of the protruding ends 13E of the second needles 13 that is easy to fit to the scalp, a variety of fit feelings can be achieved.

[0059] In addition, the protruding end 12E of the first needle 12 is located at a position on the front side of the protruding end 13E of the second needle 13. The first needle 12 and the second needle 13 are made of the same material. The first needle 12 and the second needle 13 are formed of, for example, thermoplastic elastomer resin (TPE). The first needle 12 is thinner than the second needle 13, and the first needle 12 is easier to bend than the second needle 13. According to this structure, since the first needle 12 is easy to bend according to the shape of the part to be scrubbed, it is easy to fit the part to be scrubbed. Since the second needle 13 is easy to strongly abut against the part to be scrubbed, it is easy to massage the part to be scrubbed. Therefore, the fit can be good and massage can be performed appropriately. In addition, the first needle 12 is arranged at both outer sides of the second needle 13 in the left-right direction at the part with the largest left-right dimension of the brush surface 11. According to this structure, when the brush surface 11 is moved in the left-right direction to comb the hair, since the first needle 12 that is easy to bend is easy to contact the skin before the second needle 13, it is not easy to cause discomfort to the user.

[0060] In addition, the brush surface 11 has a convex portion 17 and a concave portion 18. The length dimension L1 of the first needle 12 is the same as the length dimension L2 of the second needle 13. The first needle 12 protrudes to the front side from the convex portion 17. The second needle 13 protrudes to the front side from the concave portion 18. According to this structure, the position of the protruding end 12E of the first needle 12 and the position of the protruding end 13E of the second needle 13 can be changed using the first needle 12 and the second needle 13 of the same length.

[0061] In addition, the convex part 17 and the concave part 18 extend linearly in the vertical direction, and are alternately formed in the left-right direction orthogonal to the vertical direction. According to this structure, water easily flows along the concave part 18 extending linearly, so that water can be removed from the brush surface 11 well. Therefore, the brush 10 can be used hygienically.

[0062] In addition, the first needle 12 and the second needle 13 are arranged in the vertical direction and the left-right direction on the brush surface 11. The vertical center of the first imaginary line S1 and the second imaginary line S2 extending in the vertical direction is recessed to the rear side than the two ends in the vertical direction. According to this structure, the protruding end 12E of the first needle 12 and the protruding end 13E of the second needle 13 can be easily attached to the head of a person.

[0063] In addition, the left-right central portions of the first imaginary line S3 and the second imaginary line S4 extending in the left-right direction protrude forwards compared to the left-right ends. According to this structure, the protruding end 12E of the first needle 12 and the protruding end 13E of the second needle 13 can be easily attached to the back of the neck.

[0064] The curvature radius R1 of the first imaginary line S1 is smaller than the curvature radius R2 of the second imaginary line S2. With this configuration, the protruding end 12E of the first needle 12 can fit the shape of the object more easily than the protruding end 13E of the second needle 13, thereby improving the fit.

[0065] <Other Examples> The present invention is not limited to the embodiments described above and illustrated in the drawings. For example, the following embodiments are also included in the technical scope of the present invention.

[0066] (1) In the above embodiment, the first imaginary lines S1 and S3 are formed by the protruding ends 12E of the first needles 12 arranged in a row. However, the first imaginary lines may be formed by the protruding ends of more than half of all the first needles arranged in a row.

[0067] (2) In the above embodiment, the second imaginary lines S2 and S4 are formed by the protruding ends 13E of the second needles 13 arranged in a row. However, the second imaginary lines may be formed by the protruding ends of more than half of all the second needles arranged in a row.

[0068] (3) In the above embodiment, the first needle 12 protrudes from the convex portion 17 and the second needle 13 protrudes from the concave portion 18. The present invention is not limited thereto, and the needle may protrude from a brush surface without concave or convex portions. In this case, needles of different lengths may be used.

[0069] (4) In the above embodiment, the brush 10 has the first needle 12 and the second needle 13. In addition, the brush may further have other needles whose front ends are located at different positions from those of the first needle and the second needle.

[0070] (5) In the above embodiment, the curvature radius R1 of the first imaginary line S1 is smaller than the curvature radius R2 of the second imaginary line S2. However, the curvature radius of the first imaginary line may be the same as the curvature radius of the second imaginary line, or the curvature radius of the first imaginary line may be larger than the curvature radius of the second imaginary line.

[0071] (6) In the above embodiment, the portion of the brush 10 excluding the brush surface 11 is the grip 15. This is not limiting, and the brush may have a handle as the grip.

[0072] (7) In the above embodiment, the bending forms of the first imaginary lines S1 and S3 and the second imaginary lines S2 and S4 are illustrated. The present invention is not limited thereto, and the bending forms of the first imaginary lines and the second imaginary lines can be changed. For example, the bending forms of the first imaginary lines and the second imaginary lines can be concave or bulged to the side opposite to that shown in the above embodiment.

[0073] (8) In the above embodiment, the brush 10 is used for brushing human hair. However, the brush is not limited to this and may be used for brushing animal hair, etc.

[0074] (9) In the above embodiment, the first needles 12 and the second needles 13 are alternately arranged in a row longitudinally at equal intervals in the left-right direction, and alternately arranged in a row transversely at equal intervals in the up-down direction. The arrangement of the first needles and the second needles may be appropriately changed, for example, two rows may be arranged in the left-right direction or in the up-down direction, or the intervals may be changed.

[0075] (10) In the above embodiment, the diameter φ1 of the rear end of the first needle 12 is different from the diameter φ2 of the rear end of the second needle 13. This is not limiting, and the material or hardness of the first needle 12 and / or the second needle 13 may be appropriately changed so that the first needle 12 is more easily bent than the second needle 13.

[0076] Description of Reference Numerals L1: length of the first needle, L2: The length of the second needle. S1: a first imaginary line extending in a first direction, S2: a second imaginary line extending in the first direction, S3: a first imaginary line extending in the second direction, S4: a second imaginary line extending in the second direction, R1, R3: radius of curvature of the first imaginary line, R2, R4: The radius of curvature of the second imaginary line, 10: Brush, 11: Brush the surface, 12: First needle, 12E: The protruding end of the first needle, 13: Second injection, 13E: The protruding end of the second needle, 17: convex part, 18: Concave.

Claims

1. A brush, wherein: The brush has a plurality of first needles and a plurality of second needles protruding from the brush surface. A first imaginary line formed by the protruding ends of the plurality of first needles has a different curvature radius from a second imaginary line formed by the protruding ends of the plurality of second needles.

2. The brush according to claim 1, wherein: The protruding end of the first needle is located closer to the front end side in the protruding direction than the protruding end of the second needle. The first needle is more flexible than the second needle.

3. The brush according to claim 2, wherein: A radius of curvature of the first imaginary line is smaller than a radius of curvature of the second imaginary line.

4. The brush according to claim 1, wherein: The protruding end of the first needle is located closer to the front end side in the protruding direction than the protruding end of the second needle. The first needle and the second needle are made of substantially the same material. The first needle is thinner than the second needle.

5. The brush according to claim 1, wherein: The brush surface has convex parts and concave parts, The length of the first needle is the same as the length of the second needle. The first needle protrudes from the convex portion, The second needle protrudes from the recess.

6. The brush according to claim 5, wherein: The convex portions and the concave portions extend linearly in a first direction, respectively, and are alternately arranged in a second direction orthogonal to the first direction.

7. The brush according to claim 1, wherein: The first needle and the second needle are arranged on the brush surface in a first direction and in a second direction orthogonal to the first direction. Of the first imaginary line and the second imaginary line extending in the first direction, central portions in the first direction of the first imaginary line and the second imaginary line are recessed rearwardly relative to both end portions in the first direction.

8. The brush according to claim 1, wherein: The first needle and the second needle are arranged on the brush surface in a first direction and in a second direction orthogonal to the first direction. Of the first imaginary line and the second imaginary line extending in the second direction, central portions in the second direction protrude toward the distal end side relative to both ends in the second direction.

9. A brush, wherein: The brush has a plurality of first needles and a plurality of second needles protruding from the brush surface. The protruding end of the first needle is located closer to the front end side in the protruding direction than the protruding end of the second needle. The first needle is more flexible than the second needle.

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