JP5743754B2 - Scalp brush - Google Patents

Description

  The present invention relates to a scalp brush, and more particularly to a scalp brush in which a plurality of protrusions made of an elastomer resin are erected on a brush surface of a base.

  As a hair brush used for washing hair or cleaning the hair, for example, a brush provided with a spherical body at the end of a brush-like protrusion, a thing having a substantially conical protrusion, or a different thickness and length Various forms such as a combination of protrusions provided are known. In addition to the function of scratching the scalp, the function of scratching hair, or the function of releasing tangled hair, in recent years it has excellent functions of removing sebum that causes dirt and odors and cleaning pores, as well as scalp and pores. A massage brush having an excellent massage effect on the skin has also been developed (see, for example, Patent Document 1).

  Furthermore, in order to improve the scalp massage effect, a plurality of protrusions standing on the base and separating the hair are formed using a flexible material such as an elastomer or synthetic rubber, and a plurality of protrusions are formed at the tip of the protrusion. A scalp brush has also been developed in which small protrusions are provided so that the small protrusions are flexibly bent and brought into contact with the scalp at multiple points (see, for example, Patent Document 2).

  As such a brush, the present applicant also has a plurality of protrusions mainly exhibiting the function of scraping hair and a plurality of protrusions mainly exhibiting a massage effect on the brush surface of the base using a flexible elastomer resin. Protruding as protrusions of different shapes, it has been proposed a scalp brush that can provide an excellent massage effect, and can also exhibit an excellent sebum removal function and pore cleaning function (Patent Document 3, 4).

JP 2000-60640 A JP 2005-160684 A JP 2007-282682 A JP 2009-240768 A

  As a result of further research after the patent application related to Patent Document 4, the inventors of the present invention used the scalp brush product of Patent Documents 3 and 4 by people with long hair and / or people with a lot of hair. In some cases, it has been found that the projection may receive an impression that it does not hit the scalp sufficiently. In order to obtain a sufficient feeling that the protrusion hits the scalp, it is conceivable to use the scalp brush pressed strongly against the scalp. However, in that case, the protrusion may feel tangled or caught on the hair, or the protrusion may feel hard.

  The object of the present invention is that even if a person has a long hair and / or a large amount of hair, it is possible to obtain a sufficient feel that the protrusion hits the scalp, and it is difficult for the protrusion to get entangled or caught on the hair, and to feel the hardness etc. It is to provide a scalp brush.

  The present invention has a flat cross-sectional shape, and a plurality of spatula shapes made of an elastomer resin in which a plurality of tip protrusions are erected and arranged at intervals in the longitudinal direction of the flat cross-sectional shape. A projection and a plurality of cone-shaped projections made of elastomer resin are scalp brushes protruding from the brush surface of the base, and the spatula-shaped projections have two high-ends as the tip projections. A high protrusion and a low protrusion positioned between the two high protrusions and having a lower height than each of the high protrusions are provided, and the tips of the low protrusion and the cone-shaped protrusions are formed on the high protrusion. The present invention provides a scalp brush that does not reach the tip continuous surface of the tip.

  In addition, the present invention has a flat cross-sectional shape, and a plurality of tip protrusions are provided at the tip portion and are arranged upright at intervals in the major axis direction of the flat cross-sectional shape. A scalp brush in which a spatula-like protrusion and a plurality of cone-like protrusions made of an elastomer resin protrude from the brush surface of the base, and the spatula-like protrusion has a high height 2 as the tip protrusion. When a high scalp brush is lightly applied to the scalp, the high protuberance, the low protuberance and the low protuberance Provided is a scalp brush in which only the high projections of the cone-shaped projections hit the scalp and the lower projections and the cone-shaped projections hit the scalp when pressed against the scalp more strongly. .

According to the scalp brush of the present invention, even if the human hair is long and / or many hairs, the touch of the protrusions against the scalp is sufficiently obtained, and the protrusions are not easily entangled or caught on the hair, It is hard to feel pain.
In addition, the cone-shaped protrusion provides an excellent massage effect, and the spatula-like protrusion exhibits an excellent sebum removal function and pore cleaning function.

FIG. 1 is a perspective view of a scalp brush according to a preferred embodiment of the present invention. FIG. 2 is a plan view showing a brush surface of a scalp brush according to a preferred embodiment of the present invention. FIG. 3 is a cross-sectional view of a scalp brush according to a preferred embodiment of the present invention (a cross-sectional view taken along the long axis direction of the brush surface). FIG. 4 is a cross-sectional view (a cross-sectional view along the minor axis direction of the brush surface) of the scalp brush according to a preferred embodiment of the present invention. FIG. 5A is a front view of the spatula-shaped protrusion, and FIG. 5B is a side view of the spatula-shaped protrusion. FIG. 6 is a front view of the conical protrusion. FIG. 7A is an enlarged perspective view of a cone-shaped projection, and FIG. 7B is an enlarged plan view showing a tip portion of the cone-shaped projection. FIG. 8 is an explanatory diagram for explaining the operational effects of the scalp brush according to a preferred embodiment of the present invention. FIG. 9 is a perspective view (corresponding to FIG. 1) showing a scalp brush according to another preferred embodiment of the present invention. FIG. 10 is a plan view (corresponding to FIG. 2) showing the brush surface of the scalp brush shown in FIG. FIG. 11A is a side view of the scalp pressing projection, and FIG. 11B is an enlarged plan view of the scalp pressing projection viewed from the distal end side. FIG. 12 is an explanatory diagram for explaining the operational effects of the scalp brush according to another embodiment of the present invention. FIG. 13 is a bottom view showing a brush surface of a scalp brush according to still another embodiment of the present invention.

Hereinafter, the present invention will be described based on preferred embodiments thereof.
As shown in FIGS. 1 and 2, the scalp brush 10 according to the first embodiment of the present invention has a spatula-like projection 14 made of an elastomer resin and the projection on a brush surface 13 of a base 12 having a grip portion 11. And a plurality of cone-shaped protrusions 15 having different shapes from each other. Standing means to stand in a standing state.

  The scalp brush 10 of the present embodiment has a gripping part 11 sandwiched between fingers when, for example, shampooing or grooming hair, and a palm is brought into close contact with the upper surface of the base 12 opposite to the brush surface 13. While holding the brush 10 so as to cover the upper surface, the tips of the plurality of spatula projections 14 standing on the brush surface 13 or the tips of the spatula projections 14 and the cone-like projections 15 are pressed against the scalp. By removing the sebum and cleaning the pores by moving the brush 10 while scraping the hair, combined with the action of the cleaning agent, hair care agent, cosmetics, etc. applied to the scalp and hair as necessary. In addition to being able to perform efficiently, an excellent massage effect can be obtained.

  Each of the spatula-shaped protrusions 14 is made of an elastomer resin and has a flat cross-sectional shape, and a plurality of front-end protrusions 14b and 14c are formed on the respective front end portions in the long-axis direction X (FIG. 2). (See below). Each of the cone-shaped protrusions 15 is made of an elastomer resin and has a cone-shaped shape. The cone-shaped projections according to the present invention include a conical projection with a rounded tip, a projection having a shape in which the base of the truncated cone forms a main portion, and a plurality of small projections are provided at the tip of the base. A scalp pressing protrusion 16 having a shape as shown is also included. The cone-shaped protrusion 15 in the present embodiment is a protrusion having a shape in which a plurality of tip protrusions (small protrusions) 15b and 15c are provided at the tip of the base 15a of the truncated cone.

The base 12 is a plastic molded product made of, for example, polyethylene, polypropylene, etc. As shown in FIG. 3, the bottom surface is opened as an elliptical mounting opening 17a, and the top surface is a smooth curved convex surface. Further, for example, the base body 17 having an elliptical shape in plan view having a major axis length of about 80 to 100 mm and a minor axis length of about 70 to 90 mm, and the mounting opening 17a of the base body 17 are closed. And a substrate 18 to be fitted and fixed.
The base body 17 is provided with a mounting recess 17b for mounting a bottom plate portion 19a of an elastomer molded body 19 to be described later, with the mounting opening 17a opening on the bottom surface side. On the upper surface of 17, a grip portion 11 that protrudes upward in a shape of a high wave and warps backward is provided at the front portion of the base body 17.

  The substrate 18 has an elliptical shape in plan view that substantially matches the opening shape of the mounting opening 17a of the base body 17, and the peripheral end surface 18a formed in the protruding shape is used as the opening edge of the mounting opening 17a. The base body 17 is fixed to the base body 17 by being engaged with a locking groove 17 c provided on the inner peripheral surface of the base body 17 along the surface. A plurality of elliptical projection holes 20 and a plurality of circular projection holes 21 are formed in the substrate 18 so as to correspond to the positions of the spatula-shaped projections 14 and the cone-shaped projections 15 described later (see FIGS. 2 and 4). . The lower surface of the substrate 18 serves as the bottom surface of the base 12 to form the brush surface 13, and a plurality of spatula-shaped protrusions 14 and cone-shaped protrusions 15 protrude from the brush surface 13. Therefore, the brush surface 13 also has an elliptical shape in plan view like the substrate 18.

  Then, the substrate 18 is fitted and fixed so as to cover the mounting opening 17 a of the base body 17. At this time, the plurality of spatula-like protrusions 14 and the plurality of cone-like protrusions 15 that are integrally formed protruding from the bottom plate portion 19a of the elastomer molded body 19 are inserted into the plurality of elliptical protrusion holes 20 and the plurality of circular protrusion holes 21, respectively. Has been. Further, the bottom plate portion of the elastomer molded body 19 is disposed between the substrate 18 and a support rod 17d (see FIG. 3) that hangs from the inner top surface portion of the mounting recess 17b of the base body 17 and the peripheral step 17e of the mounting recess 17b. 19a is sandwiched. As a result, the elastomer molded body 19 allows the bottom plate portion to protrude downward from the lower surface of the substrate 18 constituting the brush surface 13 of the scalp brush 10 with the plurality of spatula-shaped protrusions 14 and the plurality of cone-shaped protrusions 15. It is attached to the base 12 in a state where 19a is accommodated and fixed in the mounting recess 17b.

  The elastomer molded body 19 is a resin molded product formed using, for example, an olefin elastomer, a styrene elastomer, a polyester elastomer, a urethane elastomer, or the like as an elastomer resin, and is the same as the mounting opening 17a of the base body 17. It consists of a plate-like bottom board portion 19a having an elliptical planar shape, and a plurality of spatula-like projections 14 and a plurality of cone-like projections 15 protruding integrally from the bottom board portion 19a. As described above, the elastomer molded body 19 is attached to the base body 17 in a state where the base 19a is accommodated and fixed in the mounting recess 17b, and the spatula-like protrusion 14 and the cone-like protrusion 15 are removed from the brush surface 13 by the substrate 18. It protrudes at a desired height which will be described later. Here, the elastomer resin for forming the elastomer molded body 19 is, for example, in conformity with hardness (Shore A hardness, rubber hardness meter (GS709N type A) ASTM D2240A 0-100 (Shore A hardness) manufactured by Teclock Co., Ltd.). It is preferable to use a material having a numerical value of 40-80. By using a material of such a material as the elastomer resin for forming the elastomer molded body 19, the spatula protrusion 14 and the cone-shaped protrusion 15 can be pressed against the scalp with a pressure that does not damage the scalp and is not painful. . Therefore, it is possible to give an appropriate stimulus, an excellent massage effect is obtained, and in combination with the action of a cleaning agent applied to the scalp and hair as necessary, removal of sebum and washing of pores is possible. It becomes possible to perform efficiently. In addition, when using the scalp brush 10 with a shampoo or a hair restorer, it is preferable to form the elastomer molded body 19 using an olefin-based elastomer or a styrene-based elastomer that is excellent in chemical resistance against these.

  In order to improve the cleanliness of the scalp brush, it is preferable to use a transparent or translucent elastomer molded body. In order to make the elastomer molded body transparent or translucent, it is necessary to select a transparent or translucent elastomer itself and to add small amounts of various additives (for example, anti-wear additives). As the degree of transparency, the haze value specified by JIS K7136 is preferably 5 to 30%, more preferably 10 to 20%, and further preferably 13 to 17%, thereby improving the cleanliness of the scalp brush. In addition, the appropriate durability of the brush can be maintained. As a specific elastomer molded product, trade name elastomer AR (the hardness 55-60) which is a styrene-based elastomer of Aron Kasei Co., Ltd. corresponds.

The spatula-shaped protrusion 14 has a flat elliptical shape in which the cross-sectional shape of the root portion along the brush surface 13 is, for example, a length of a major axis of about 5 to 20 mm and a length of a minor axis of about 2 to 15 mm. (See FIG. 2), and as shown in FIGS. 5 (a) and 5 (b), the shape is slightly tapered toward the tip while maintaining a substantially similar cross-sectional shape. It consists of a spatula-like portion 14a and three tip protrusions that protrude further upward from the tip of the spatula-like portion 14a. More specifically, the spatula-shaped protrusion 14 is composed of two high protrusions 14b, 14b having a high height and the high protrusions 14b, 14b, respectively, as the front-end protrusions disposed at the distal end portion of the spatula-shaped portion 14a. And a low protrusion 14c having a low height.
The spatula-shaped protrusion 14 has a height h1 of, for example, 12 to 23 mm, preferably from the brush surface 13 to the tip of the high protrusion 14b (if there are a plurality of high protrusions having different heights, the tip of the highest protrusion having the highest height). And the height h2 of the spatula-like portion 14a occupies 70 to 95%, preferably 75 to 85% of the height h1 up to the tip of the high protrusion 14b. The spatula-like portion 14 a is a main part of the spatula-like projection 14. As a result, the function of scraping the hair is efficiently exhibited, and the force is easily transmitted to the tip portion when pressed against the scalp.

The high protrusions 14b and 14b and the low protrusion 14c provided at the distal end portion of the spatula-shaped protrusion 14 preferably have a substantially conical shape with the distal end formed in a convex curve shape. The high protrusions 14b and 14b (the highest protrusion having the highest height when having a plurality of high protrusions having different heights) have a height h3 from the tip of the spatula 14a of, for example, 2 to 7 mm, and more preferably Is 3.5 to 5.5 mm, more preferably 4 to 5 mm. In the low protrusion 14c, the height h3 ′ from the tip of the spatula 14a is lower than the height h3 from the tip of the spatula 14a of each high protrusion 14b. The height h3 ′ of the low protrusion 14c is the difference (h3−) between the heights of the high protrusions 14b and 14b (the height of the high protrusion having the highest height when a plurality of high protrusions having different heights are provided). h3 ′) is preferably 0.3 to 3 mm, more preferably 0.5 to 2.5 mm, and still more preferably 0.5 to 1.5 mm. This height difference (h3−h3 ′) is the same as the size of the step (height difference) that occurs between the higher end of the high protrusions 14b and 14b and the end of the low protrusion 14c. is there.
Further, the low protrusion 14c is disposed between the high protrusions 14b and 14b in the long axis direction X of the flat cross-sectional shape of the spatula protrusion 14, and the high protrusions 14b and 14b and the low protrusion 14c in the long axis direction X are disposed. For example, the interval s1 at the root portion is 0 to 5 mm, preferably 0.3 to 2 mm, and the interval s2 at the top portion is 1 to 7 mm, preferably 2 to 5 mm.

The ratio (h3 / d) between the height h3 of each of the high protrusions 14b and 14b and the thickness (diameter) d of each root portion reaches the scalp and pores while scraping the hair when pressed against the scalp. From the viewpoint of facilitating, it is preferably 1.5 to 2.5, and more preferably 1.8 to 2.3.
The ratio (h3 ′ / d) of the height h3 ′ of the low protrusion 14c and the thickness (diameter) d at the root portion also reaches the scalp and pores while scraping the hair when pressed against the scalp. From the viewpoint, it is preferably 1 to 2.5, and more preferably 1.2 to 2.2.
The thickness d of the tip protrusions 14b and 14c means the diameter when the cross-sectional shape at the root portion is circular, and twice the cross-sectional secondary radius when the cross-sectional shape is not circular.

  The cone-shaped protrusion 15 in the present embodiment has a cross-sectional shape of the base portion along the brush surface 13 that is, for example, a circle having a diameter of about 4 to 10 mm (see FIG. 2), and FIG. As shown in FIG. 7, a truncated cone-shaped base portion 15a that is slightly tapered toward the tip while maintaining a substantially similar cross-sectional shape, and a plurality of protrusions that protrude further upward from the tip of the base portion 15a. Tip projections 15b and 15c. The cone-shaped projection 15 is erected so that the height h4 from the brush surface 13 to the tips of the tip projections 15b and 15c is, for example, 5 to 22 mm, preferably 10 to 20 mm, and the frustum-shaped base portion 15a. The height h5 occupies 90 to 98%, preferably 92 to 96% of the height h4 from the brush surface 13 to the tips of the tip projections 15b and 15c, and the base portion 15a is the main part of the cone-like projection 15 It has become.

  As shown in FIGS. 6, 7A and 7B, the cone-shaped projection 15 in the present embodiment has two types of tip projections, that is, a first tip projection 15b and a second tip. A protrusion 15c is provided. The first tip projection 15b and the second tip projection 15c as tip projections have a projection height h6 (see FIG. 6) from the tip of the truncated cone-shaped base portion 15a. The height is lower than any height h3, h3 ′ of the low protrusion 14c. As a result, the tip protrusions 14b, 14b, 14c of the spatula-shaped protrusion 14 and particularly the high protrusions 14b, 14b are flexibly deformed to exhibit an excellent sebum removing function and pore cleaning function, while the brush 10 is used to a certain extent. When moving while pressing against the scalp with force, the tip protrusions 15b, 15c of the cone-shaped protrusion 15 are less likely to bend or bend, and the force is effectively transmitted to the scalp. In addition, an excellent massage effect can be obtained.

The tip protrusions 15b and 15c of the conical protrusion 15 have a protrusion height h6 (see FIG. 6) from the base 15a of the truncated cone shape, and the height h3 ′ of the low protrusion 14c of the spatula protrusion 14 [FIG. a)]] is preferably 70% or less, more preferably 10 to 50%, still more preferably 15 to 40%. Further, the height h6 of each of the tip protrusions 15b and 15c is preferably 0.3 to 20 mm, more preferably 0.3 to 10 mm, still more preferably 0.3 to 5 mm, particularly It is preferable to set it as 0.5-1.5 mm.
In the brush 10 of the present embodiment, the protrusion height h6 from the tip of the base portion 15a is the same between the first tip protrusion 15b and the second tip protrusion 15c. When tip projections having different heights exist at the tip of the base portion 15a, the height of the highest tip projection is set as the height h6 of the tip projection provided at the tip of the cone-like projection 15, and the spatula-like projection 14 Compared with the height of the low protrusion 14c.

  As shown in FIGS. 7A and 7B, the first tip protrusion 15b in the present embodiment has a hemispherical shape and is disposed at the center of the tip of the truncated cone-shaped base portion 15a. On the other hand, the second tip protrusion 15c has a substantially hemispherical shape. More specifically, the root portion has a columnar shape, and the tip has a hemispherical convex curved surface. A plurality of second tip protrusions 15c are formed so as to surround the periphery of the first tip protrusion 15b. The number of second tip projections 15c surrounding the first tip projection 15b can be, for example, about 3 to 10, preferably 4 to 10, and more preferably 5 to 8. The plurality of second tip protrusions 15c are preferably arranged at substantially equal intervals around the first tip protrusion 15b. By providing a plurality, particularly three or more of the second tip protrusions 15c so as to surround the central portion, the scalp can be massaged well regardless of the brush moving direction when using the brush.

In the second tip protrusion 15c in the present embodiment, the thickness d2 of the root portion is smaller than the thickness d1 of the root portion of the first tip protrusion 15b. The thicknesses d1 and d2 of the tip protrusions 15b and 15c mean a diameter when the cross-sectional shape at the root portion is circular, and double the cross-sectional secondary radius when the cross-sectional shape is not circular.
The first tip protrusion 15b has a ratio (h6 / d1) of the protrusion height h6 from the tip of the base portion 15a to the thickness (diameter) d1 at the root portion of 0.3 to 0.85. Preferably, it is 0.5 to 0.75. In addition, the second tip protrusion 15c has a ratio (h6 / d2) between the protrusion height h6 from the tip of the base portion 15a and the thickness (diameter) d2 at the base portion of 0.5 to 2.0. It is preferable that the ratio is 0.7 to 1.5.

  Further, the ratio (h6 / d1, h6 / d2) of the first and second tip protrusions 15b, 15c is the ratio (h3 / d, h3) of the high protrusion 14b and the low protrusion 14c of the spatula protrusion 14 described above. It is preferably smaller than '/ d). As a result, the tip protrusions 14b, 14b, 14c of the spatula-shaped protrusion 14 and particularly the high protrusions 14b, 14b are flexibly deformed to exhibit an excellent sebum removing function and pore cleaning function, while the brush 10 is used to a certain extent. When moving while pressing against the scalp with force, the tip protrusions 15b and 15c of the cone-shaped protrusion 15 are less likely to bend and bend, and the force is effectively transmitted to the scalp, so that a feeling that the protrusion sufficiently hits the scalp is obtained, In addition, an excellent massage effect can be obtained.

  Further, the second tip protrusion 15c has an interval S3 (see FIG. 7B) between the second tip protrusions 15c adjacent to each other around the first tip protrusion 15b, 0.3 to 2 mm, and the top portion. It is preferable that the distance S4 (see FIG. 7B) is set to 2.5 to 4 mm.

  The scalp brush 10 of this embodiment, as shown in FIG. 8A, when the brush 10 is lightly applied to the scalp S ′, the high protrusions 14b and 14b and the low protrusion 14c of the spatula protrusion 14 and the cone shape. Of the first and second tip protrusions 15b and 15c in the protrusion 15, only the high protrusions 14b and 14b hit the scalp S ′, and when pressed more strongly against the scalp as shown in FIG. In addition, the first and second tip protrusions 15b and 15c of the cone-shaped protrusion 15 are made to contact the scalp S ′.

More specifically, the brush surface 13 of the brush 10 of the present embodiment has a plurality of parallel virtual straight lines YY drawn on the brush surface 13 (short in the shape of the elliptical brush surface 13 in the present embodiment). A spatula-like projection 14 and a cone-like projection 15 are arranged in a state of being divided into a plurality of projection rows R1 to R6 by five lines extending in a direction parallel to the axial direction (see FIG. 2). .
Of the six protrusion rows R1 to R6 divided by the five lines, the four protrusion rows R2 to R5 excluding the rows at both ends have three spatula protrusions 14 and two Conical protrusions 15 are alternately arranged.

  In the projection rows R2 to R5 in the present embodiment, the plurality of spatula-like projections 14 and the cone-like projections 15 arranged between the spatula-like projections are arranged in the major axis direction (X Are arranged in series in a direction parallel to the direction), and a plurality of such protrusion rows are formed in a direction perpendicular to the row (a direction along the major axis direction of the brush surface 13). Between adjacent protrusion rows, a strip-like interval region 23 having a width b of 7 to 15 mm, which is extended along the YY line and has no protrusions, is formed. With such an arrangement, when the scalp brush 10 is moved in a direction along the protrusion row, the spatula protrusions 14 and the cone-shaped protrusions 15 are alternately brought into contact with predetermined portions of the scalp, and the sebum is scraped. By alternately taking the scalp and massaging the scalp, the scalp massaging effect and the sebum cleaning effect can be exhibited more efficiently. In addition, it is possible to effectively avoid or reduce the attachment and tangling of the hair to the protrusions 14 and 15, and the hair adheres by sliding a finger along the protrusion row or flowing shower water. Even if entangled, it can be easily removed.

  Then, as shown in FIGS. 3, 4, and 8, when considering the tip continuous surface S at the tip of the high projection 14 b of the spatula projection 14, the tip and cone of the low projection 14 c of the spatula projection 14 None of the tips of the protrusions 15 reach the tip continuous surface S as shown in FIG. Therefore, when the brush 10 is lightly applied to the scalp, the high protrusion 14b hits the scalp S ', while the low protrusion 14c and the cone-shaped protrusion 15 do not hit the scalp S'.

The tip continuous surface S is preferably a concave curved surface that follows the convex curved surface that is the outline of the human head, and is parallel to the major axis direction X of the flat cross-sectional shape of the spatula-shaped protrusion 14 on the brush surface 13. When the direction (vertical direction in FIG. 2) is the short axis direction of the brush surface 13 and the direction orthogonal to the short axis direction (left and right direction in FIG. 2) is the long axis direction of the brush surface 13, the tip continuous surface S The curvature radius R of the cross section passing through the center of the brush surface and along the minor axis direction of the brush surface is preferably 100 to 350 cm, more preferably 120 to 300 cm, and still more preferably 150 to 200 cm. Further, the tip continuous surface S has a radius of curvature R of a cross section passing through the center of the brush surface and along the major axis direction of the brush surface, preferably 100 to 400 cm, more preferably 120 to 300 cm, and still more preferably. Is 150-200 cm.
Here, the tip continuous surface S refers to three or more dispersed in one direction (for example, the major axis direction of the brush surface) and the orthogonal direction (for example, the minor axis direction of the brush surface) in the surface of the brush surface. It is a curved surface with which the tip of the high protrusion 14b of the spatula-shaped protrusion 14 contacts. The tip continuous surface S is preferably assumed to be a curved surface with which the high protrusions 14b of all the spatula protrusions 14 or as many high protrusions 14b of the spatula protrusions 14 as possible contact. 3, 4, and 8, the curved surface with which the high protrusions 14 b of all the spatula protrusions 14 of the brush 10 of the present embodiment are in contact is shown as a tip continuous surface S.

Further, as shown in FIG. 8 (a), the brush 10 is pressed lightly against the scalp from a state where it is lightly contacted with the scalp S ′, thereby causing the low protrusion 14c and the cone to appear as shown in FIG. 8 (b). The somatic protrusion 15 hits the scalp S ′. In order to allow the low protrusion 14c and the cone-shaped protrusion 15 to contact the scalp S ′ with a strong pressing force by hand, the distance from the tip connecting surface S to the tip of the low protrusion 14c and the tip connecting surface S to the cone What is necessary is just to set the distance to the front-end | tip of the shaped protrusion 15 in an appropriate range in consideration of the flexibility of the high protrusion 14b and the like.
For example, the distance from the tip continuous surface S to the tip of the low protrusion 14c is preferably 0.3 to 3 mm, more preferably 0.5 to 2.5 mm, and still more preferably 0.5 to 1.5 mm. Further, the distance from the tip continuous surface S to the tip of the cone-shaped projection 15 is preferably 0.3 to 5 mm, more preferably 0.5 to 2.5 mm. The distance from the tip continuous surface S to the tip of the protrusion is the shortest distance measured along the normal line of the tip continuous surface S.

In the present embodiment, in each of the protrusion rows R1 to R6, the tip of the high protrusion 14b of the spatula-shaped protrusion 14 is in contact with the tip continuous surface S, while the low protrusion 14c of the spatula-shaped protrusion 14 and the cone-shaped protrusion 15 are each. The tip of the tip does not reach the tip continuous surface S.
The distance from the tip of the low protrusion 14c to the tip continuous surface S is equal to the distance from the tip of the cone-shaped projection 15 to the tip continuous surface S. Therefore, when the force for pressing the scalp brush 10 against the scalp is gradually increased from the state shown in FIG. 8A, the tips of the low protrusion 14c and the cone-shaped protrusion 15 are shown in FIG. 8B. However, it hits the scalp S 'almost simultaneously.

  In the scalp brush 10 of the present embodiment having the above-described configuration, for example, the grip portion 11 is sandwiched between fingers, and the palm is brought into close contact with the upper surface of the base 12 opposite to the brush surface 13. The brush 10 is gripped while covering the hair, and the plurality of spatula protrusions 14 protruding from the brush surface 13 or the tips of the spatula protrusions 14 and the cone-like protrusions 15 are pressed against the scalp, and the hair is scraped. By moving the brush 10 in this way, the hair is cleaned and the hair is cared for while applying a cleaning agent, a hair care agent, cosmetics, and the like to the scalp and hair as necessary. Here, the gripping portion 11 has a concave shape along the shape of the side surface of the finger, and the gripping portion 11 is gripped in a stable state while fitting the brush 10 to the hand, for example, a scalp brush. The operation of scraping the hair while moving 10 in the short axis direction of the brush surface 13 can be performed easily and smoothly.

According to the scalp brush 10 of the present embodiment, only the high protrusion 14b is brought into contact with the scalp by changing the force with which the brush 10 is pressed against the scalp, or the low protrusion 14c and the cone together with the high protrusion 14b. The protrusions 15 can be brought into contact with each other.
Therefore, even if the hair is long and / or many people by moving the brush 10 and washing and massaging it while pressing against the scalp with such a weak force that only the high protrusion 14b abuts, the high protrusion 14b The scalp hits the scalp and gives a sufficient feel that the protrusion hits the scalp, and the protrusion is less likely to get tangled or caught on the hair, and it is also difficult to feel hardness or pain.
On the other hand, when it is desired to massage more strongly, the cone-shaped projections 15 are more excellent by moving the brush 10 while pressing against the scalp with a strong force such that the low projections 14c and / or the cone-shaped projections 15 abut. A massage effect is obtained, and an excellent function of removing sebum and a function of cleaning pores are exhibited by the spatula protrusion 14.

Further, in the brush 10 of this embodiment, as described above, when the force for pressing the brush 10 against the scalp is gradually increased, the tip of the low projection 14c and the tip of the cone-like projection 15 hit the scalp almost simultaneously. However, the distance from the tip continuous surface S to the tip of the cone-shaped projection 15 is made shorter than the distance from the tip continuous surface S to the tip of the low projection 14c, and the tip of the cone-shaped projection 15 hits first. Then, the tip of the low protrusion 14c may then hit.
By designing the low protrusion 14c and the cone-shaped protrusion 15 to hit the scalp almost simultaneously, or the cone-shaped protrusion 15 to hit the scalp before the low protrusion 14c, the cleaning effect of sebum on the protrusion 14 is further efficient. The scalp can be massaged with the cone-shaped protrusion 15 while being well demonstrated.

  In order to further enhance scalp cleanability, the distance from the tip connecting surface S to the tip of the cone-shaped projection 15 is made longer than the distance from the tip connecting surface S to the tip of the low protrusion 14c. Thus, the tip of the low protrusion 14c may hit the scalp first, and then the tip of the cone-like protrusion 15 may hit.

In the scalp brush 10 of this embodiment, the force for pressing the brush 10 against the scalp is further increased from the state shown in FIG. 8B, and when the brush is moved in this state, as shown in FIG. 8C. In addition, the low protrusion 14c comes into contact with the scalp in a bent state. Therefore, the contact area is widened, and the effect of cleaning sebum on the protrusion 14 is more efficiently exhibited.
On the other hand, the cone-shaped projection 15 comes into contact with the scalp while the tip projections 15b and 15c are hardly bent, while the conical base portion 15a is slightly bent. Therefore, the scalp can be massaged with a stronger force.

  The brush of the present invention has a central protrusion group 14R in which a plurality of spatula-shaped protrusions 14 are arranged in series at intervals in the central portion of the brush surface 13, and a plurality of protrusions 14 are provided on both sides of the central protrusion group. The cone-shaped protrusion 15 has a first side protrusion group 15R arranged in series at intervals, and a plurality of spatula protrusions 14 are arranged outside in series at a second side. It has a side protrusion group 14R ′. Between each protrusion group, the strip | belt-shaped space | interval area | region with a width | variety of 2-5 mm in which the protrusion is not arrange | positioned is extended along the major axis direction of the elliptical brush surface 13. FIG. This further prevents the hair from getting entangled or caught on the protrusions, and also improves the washing of the hair and the like by running water from the shower.

  Further, the tip continuous surface S at the tips of the high protrusions 14b of the plurality of spatula protrusions 14 is a concave curved surface that is recessed inward (brush surface side) along the contour shape of the head. By making the tip continuous surface a concave curved surface, it is possible to eliminate or reduce the effect of the movement of the brush surface on the massage effect and the like. The radius of curvature of the concave curved surface is preferably 100 to 400 mm in the major axis direction of the brush surface, and preferably 100 to 350 mm in the minor axis direction of the brush surface.

Next, a scalp brush 10 'according to another embodiment of the present invention (hereinafter also referred to as the brush 10' according to the second embodiment) will be described with reference to FIGS.
The brush 10 ′ of the second embodiment has a scalp compression protrusion (hereinafter, also referred to as a scalp compression protrusion) of the form shown in FIG. 11 instead of some of the cone-shaped protrusions 15 in the brush 10 of the first embodiment. Except for having 16, it has the same structure as the brush 10 of the first embodiment. Therefore, about brush 10 'of 2nd Embodiment, difference with the brush 10 of 1st Embodiment is mainly demonstrated, the same code | symbol is attached | subjected about the same point, and description is abbreviate | omitted. For the points that are not particularly described, the description of the brush 10 described above (including a description of a more preferable configuration) is appropriately applied.
In this embodiment, the “conical protrusion 15” refers to a protrusion having a shape in which a plurality of tip protrusions (small protrusions) 15b and 15c are provided at the tip portion of the base 15a of the truncated cone. "Refers to a generic name that includes, in addition to the" conical protrusion 15 ", a conical protrusion with a rounded tip, a scalp pressing protrusion 16 having a shape as shown in FIG.

  In the brush 10 ′ of the second embodiment, as shown in FIGS. 9 and 10, the two protrusion rows R <b> 3 and R <b> 4 arranged near the center of the brush surface 13 include scalp pressing protrusions 16. Each of the protrusion rows R3 and R4 includes three spatula protrusions 14 and two scalp compression protrusions 16 positioned between the spatula protrusions. The scalp pressing protrusion 16 is made of a part of an elastomer molded body made of an elastomer resin together with the spatula-shaped protrusion 14 and the cone-shaped protrusion 15. The projections other than the scalp compression projection 16 in the second embodiment (the spatula projection 14 and the cone-shaped projection 15) have the same form as in the first embodiment.

  As shown in FIGS. 9 and 11, the scalp compression protrusion 16 has a substantially columnar shape with a tip end rounded into a hemisphere. More specifically, as shown in FIG. 11, it is a cone-shaped projection having a hemispherical tip portion 16a on a truncated cone-shaped base portion 16b. The scalp compressing projection 16 is formed such that the area of the cross section at the root, the central portion in the height direction or the like is larger than the cone-shaped projection 15 and is less bent than the cone-shaped projection 15.

Further, as shown in FIG. 12A, when considering the tip continuous surface S at the tip of the high projection 14b of the spatula-like projection 14, the tip of the low projection 14c of the spatula-like projection 14, the cone-like projection 15 Neither the tip of the head nor the tip of the scalp pressing projection 16 reaches the tip continuous surface S. Further, the distance from the tip continuous surface S to the tip of the conical projection 15 is equal to or shorter than the distance from the tip continuous surface S to the tip of the low protrusion 14c of the spatula projection 14. Yes.
Further, in the scalp compression protrusion 16, the distance from the tip connecting surface S to the tip of the protrusion is equal to or longer than the distance from the tip connecting surface S to the tip of the cone-shaped protrusion 15. ing.

Therefore, as shown in FIG. 12A, the brush 10 ′ of the second embodiment has a high protrusion 14b of the spatula protrusion 14 that hits the scalp S ′ when lightly applied to the scalp S ′. The tips of the low protrusion 14c, the cone-shaped protrusion 15 and the scalp pressing protrusion 16 do not hit the scalp S ′.
However, when the distance from the tip continuous surface S to the tip of the scalp pressing projection 16 is longer than the distance from the tip continuous surface S to the tip of the cone-shaped projection 15, the brush 10 ' When the force that presses against the scalp is gradually increased, as shown in FIG. 12B, the high protrusions 14b are deformed, and the tips of the low protrusions 14c and the cone-shaped protrusions 15 hit the scalp S ′. When the pressing force is further increased, the low protrusion 14c and the cone-shaped protrusion 15 are slightly deformed as shown in FIG. 12C, and the scalp pressing protrusion 16 strikes the scalp S ′.
When the distance from the tip continuous surface S to the tip of the scalp compression projection 16 is equal to the distance from the tip continuous surface S to the tip of the cone-like projection 15, the scalp compression projection 16 and the cone-like shape are provided. The protrusions 15 hit the scalp S ′ almost simultaneously.

  As described above, according to the brush 10 ′ of the second embodiment, the same effect as that of the brush 10 of the first embodiment can be obtained by changing the pressing force against the scalp. The scalp S ′ can be strongly pressed by the pressing protrusion 16, and the effect that the acupoints of the head can be stimulated like finger pressure by moving the brush in this state (hereinafter also referred to as a finger pressure effect). ) Is also obtained.

  From the viewpoint of obtaining a good acupressure effect by the scalp pressing protrusion 16, the scalp pressing protrusion 16 has a cone-shaped protrusion 15 having a cross-sectional area and diameter at the root portion adjacent to the brush surface 13 and the central portion in the height direction. It is preferable that it is larger than the cross-sectional area and diameter of the same part. Further, in the scalp compression protrusion 16, the diameter L2 (or equivalent circle diameter) of the portion adjacent to the hemispherical tip portion 16a is preferably more than 50% of the diameter L1 (or equivalent circle diameter) at the root portion. More preferably, it is 60% or more and less than 100%, more preferably 70% or more and less than 100%, and still more preferably 70% or more and 99% or less. As shown in FIG. 11, the scalp compression protrusion 16 which is a cone-shaped protrusion has a diameter L2 (or equivalent circle diameter) of a portion adjacent to the hemispherical tip portion 16a, and a diameter L1 (or equivalent circle) at the root portion. Smaller than the diameter). The upper limit of the ratio between the diameter L2 (or equivalent circle diameter) of the portion adjacent to the hemispherical tip portion 16a and the diameter L1 (or equivalent circle diameter) at the root portion is less than 100%, so that the scalp compression projection When molding 16, it becomes easy to separate from the mold.

In addition, the scalp compression protrusion 16 has a distance from the tip connecting surface S to the tip of the protrusion 16 of 0.5 to 3.5 mm than the distance from the tip connecting surface S to the tip of the low protrusion 14b. In particular, it is preferably about 1 to 2 mm long. Further, the scalp compression projection 16 has a distance from the tip connecting surface S to the tip of the projection 16 of 0 to 3 mm, particularly from the distance from the tip connecting surface S to the tip of the cone-like projection 15. It is preferably about 0 to 1 mm long.
Further, the scalp pressing protrusion 16 preferably has a radius of curvature R1 of the spherical portion at the tip of 1 mm or more, particularly 2 to 3.5 mm.

The present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, a spatula-like projection is erected on the outer peripheral portion along the periphery of the brush surface, and a cone-like projection is erected on these inner regions, or a row of spatula projections is formed across the central portion of the inner region. It is not always necessary to provide a plurality of spatula-like protrusions and a plurality of cone-like protrusions on the entire brush surface. The spatula-shaped protrusion may have an elliptical cross-sectional shape or other flat cross-sectional shape such as an ellipse or a rectangle, and the cone-shaped protrusion has a substantially conical shape or a pyramid shape. Etc. Furthermore, only one high protrusion and one low protrusion may be provided on the tip portion of the spatula protrusion, and the tip protrusion may have a shape other than the conical shape.

Moreover, the cone-shaped projection 15 may have only the second tip projection 15c in the embodiment shown in FIG. 7, or the cone disclosed in Patent Document 3 whose tip is chamfered in a curved shape. A protrusion can also be provided.
Furthermore, the arrangement form of the spatula-like protrusion 14 and the cone-like protrusion 15 may be an aspect as shown in FIG. Further, in the brush shown in FIG. 13, the four or two cone-shaped projections 15 located near the center of the brush surface can be replaced with the scalp compression projections 16 provided in the second embodiment. Instead of the scalp compressing protrusion 16, a cylindrical protrusion having a uniform diameter in the vertical direction may be provided in a portion other than the hemispherical tip portion 16a. Further, the scalp compression protrusion 16 may have an elliptical cross-sectional shape including the tip portion, or a rounded prism or quadrangular prism such as a triangular prism, quadrangular prism, pentagonal prism, or the like. May be.
In the scalp brush 10 described above, a plurality of (specifically, three) spatula protrusions 14 and two cone-like protrusions 15 arranged between the spatula protrusions include a spatula protrusion. The number of protrusion rows arranged in a state substantially in series in the direction parallel to the major axis direction (X direction) of the 14 cross-sectional shapes was five of R2 to R5. The number of such protrusion rows May be replaced with 2, 3, 4, 6, 7, 8, 9, 10, etc. instead of 5. A preferable number is 3-10, More preferably, it is 4-10.

  In the scalp brush 10 described above, the spatula-like portion 14a of the spatula-like projection 14 and the high-projection 14b and the low-projection 14c are integrally formed of the same material, and the base portion 15a of the cone-like projection 15 and the first and first projections are formed. Although the two tip protrusions 15b and 15c are integrally formed of the same material, the independently manufactured high protrusion 14b and low protrusion 14c, and the first and second tip protrusions 15b and 15c are replaced by the spatula-like portion 14a and the base portion 15a. In addition, it may be integrated later by thermal fusion or the like regardless of the material difference.

  In addition, the description omitted in one embodiment and the requirements of only one embodiment can be applied to other embodiments as appropriate, and the requirements in each embodiment can be appropriately applied between the embodiments. Can be substituted for each other.

10, 10 'scalp brush 11 gripping part 12 base 13 brush surface 14 spatula-like protrusion 14a spatula-like part 14b high protrusion (tip protrusion)
14c Low protrusion (tip protrusion)
14R central projection group 14R 'second side projection group 15 cone-shaped projection 15a base 15b first tip projection (tip projection)
15c Second tip protrusion (tip protrusion)
15R 'first side protrusion group 16 protrusion for scalp compression (conical protrusion)
16a tip portion 16b frustoconical base 17 base body 17a mounting opening 17b mounting recess 17c locking recess 17d support rod 17e peripheral stepped portion 18 substrate 18a substrate peripheral end surface 19 elastomer molded body 19a elastomer molded body base 20 Elliptic projection hole 21 Circular projection hole h1 Spatula-shaped projection height h2 Spatula-shaped portion height h3 Spatula-shaped projection high height h3 'Spatula-shaped projection low projection height h4 Cone-shaped projection height h5 Height of base h6 Height of first and second tip protrusions X Long axis direction of flat cross-sectional shape of spatula protrusion

Claims (11)

A plurality of spatula-shaped protrusions made of an elastomer resin having a flat cross-sectional shape and a plurality of front-end protrusions standing at an interval in the major axis direction of the flat cross-sectional shape, and an elastomer A plurality of cone-shaped protrusions made of resin are scalp brushes protruding from the brush surface of the base,
The spatula-shaped protrusion is provided with two high protrusions having a high height and a low protrusion having a height lower than each of the two high protrusions as the tip protrusion,
The tip of each of the low projection and the cone-shaped projection does not reach the tip continuous surface of the tip of the high projection ,
The scalp brush is a scalp brush in which the tip continuous surface is a curved surface where the tips of the three or more spatula-shaped high protrusions dispersed in one direction in the brush surface and in the direction perpendicular thereto are in contact . The distance from the said tip continuous surface to the front-end | tip of the said cone-shaped protrusion is equal to the distance from this front-end | tip continuous surface to the front-end | tip of the said low protrusion, or it is shorter than this distance, or longer than this distance. Scalp brush.   The scalp brush according to claim 1 or 2, wherein the cone-shaped protrusion is a protrusion having a truncated cone-shaped base and a plurality of tip protrusions further protruding from the tip of the base. The cone-shaped protrusion includes a truncated cone-shaped base, a protrusion having a plurality of distal protrusions further protruding from the distal end of the base , and a scalp compression protrusion having a hemispherical distal end portion on the truncated cone-shaped base. The scalp compression protrusion has a distance from the tip continuous surface to the tip of the protrusion equal to a distance from the tip continuous surface to the tip of the cone-shaped protrusion having the tip protrusion . Or the scalp brush of Claim 1 or 2 longer than this distance. A plurality of spatula-shaped protrusions made of an elastomer resin having a flat cross-sectional shape and a plurality of front-end protrusions standing at an interval in the major axis direction of the flat cross-sectional shape, and an elastomer A plurality of cone-shaped protrusions made of resin are scalp brushes protruding from the brush surface of the base,
The spatula-shaped protrusion is provided with two high protrusions having a high height and a low protrusion that is positioned between the two high protrusions and has a lower height than each of the high protrusions, as the tip protrusion.
When the scalp brush is lightly applied to the scalp, only the high protrusions of the high protrusions, the low protrusions and the cone-shaped protrusions hit the scalp, and when pressed more strongly against the scalp, the low protrusions and the cones A scalp brush with somatic protrusions that hit the scalp.   When the force for pressing the scalp brush against the scalp is gradually increased, the low projection and the cone-shaped projection hit the scalp almost simultaneously, or the cone-shaped projection hits the scalp before the low projection The scalp brush according to claim 5, wherein the low protrusion is formed so as to contact the scalp before the cone-shaped protrusion.   The scalp brush according to claim 5 or 6, wherein the conical protrusion is a protrusion having a truncated cone-shaped base and a plurality of tip protrusions further protruding from the tip of the base. The cone-shaped protrusion includes a truncated cone-shaped base, a protrusion having a plurality of distal protrusions further protruding from the distal end of the base , and a scalp compression protrusion having a hemispherical distal end portion on the truncated cone-shaped base. and which, for protrusion the head skin compressions, when gradually increased force pressing the scalp brush to the scalp, the or cone-shaped projection and the scalp for pressurizing projections substantially simultaneously strike the scalp with the tip protrusion, The scalp brush according to claim 5 or 6, wherein the cone-shaped projections having the tip projections are formed so as to contact the scalp before the scalp compression projections.   The scalp brush according to any one of claims 3, 4, 7, and 8, wherein the cone-shaped protrusion having the tip protrusion has a height of the tip protrusion lower than that of the low protrusion.   The scalp brush according to claim 9, wherein the tip protrusion of the cone-shaped protrusion having the tip protrusion has a ratio of height to a thickness at a root portion smaller than that of the low protrusion. The scalp brush according to any one of claims 1 to 4 , wherein the tip continuous surface is a concave curved surface that is recessed toward the brush surface along the contour shape of the head.

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