WO2016194819A1 - Scalp cleaning brush - Google Patents

Abstract

The scalp cleaning brush (1) according to the present invention is provided with: a base (2) having an insertion hole (15) in a brush surface (21) thereof; a brush member (7) comprising a flexible flat plate portion (9) and a flexible protruding portion (11) which is provided in a first region (A1) on one surface side of the flat plate portion (9) that faces the surface on the opposite side to the brush surface (21), and which is inserted through the insertion hole (15) and extends in a first direction intersecting said one surface; and a hollow casing (4) having an opening portion (41) into which the base (2) and the brush member (7) are fitted. The protruding portion (11) is inserted through the insertion hole (15), which has a larger diameter than the protruding portion (11), and is capable of moving back and forth in the first direction relative to the base (2) together with the first region (A1) of the flat plate portion (9).

Description

Scalp cleaning brush

The present invention relates to a scalp cleaning brush.
This application claims priority on May 29, 2015 based on Japanese Patent Application No. 2015-110679 filed in Japan, the contents of which are incorporated herein by reference.

Conventionally, various brushes used for cleaning the scalp are known.
For example, a configuration (Patent Documents 1 to 4) is proposed in which a plurality of resin protrusions and a plurality of bristles made of a plurality of hairs are arranged on a base. The arrangement pattern of the protrusions and hair bundles, the cross-sectional shape of the protrusions, and the like are various, and many of them are intended to improve the scalp massage effect as well as the scalp and pore cleaning effects.

JP 2009-201570 A Japanese Patent Laid-Open No. 11-70019 Japanese Patent Laid-Open No. 2000-60640 JP 2000-139567 A

In conventional scalp cleaning brushes, the protrusions mainly scrape the hair, and the hair bundle is responsible for cleaning the scalp, and the scalp massage effect can be obtained as a synergistic effect of the above-mentioned action by the protrusions. ing. However, some users have a desire to feel the massage effect on the scalp during hair washing.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a scalp hair-washing brush that can give a high massage feeling while maintaining the cleaning power for scalp and hair.

The scalp cleaning brush according to an aspect of the present invention includes a base having an insertion hole in a brush surface, a flexible flat plate portion, and one surface side of the flat plate portion facing a surface opposite to the brush surface. In the first region, a brush member having a flexible protrusion inserted in the insertion hole and extending in a first direction intersecting the one surface, and an opening in which the base and the brush member are mounted. A housing formed in a hollow shape, and the protrusion is inserted into the insertion hole having a diameter larger than that of the protrusion, and the first region of the flat plate portion and the base And reciprocating in the first direction.

According to said structure, since the projection part provided in the 1st area | region of the flat plate part is the structure which reciprocates with respect to a base with a flat plate part, a projection part is displaced (movement) following a user's operation | movement. The pressing state to the scalp by the 1st projection part can be maintained. Thereby, the user can obtain the feeling that the scalp was pressed and can feel the massage effect more.

Moreover, as one aspect of the scalp cleaning brush of the present invention, the brush member has a plurality of support portions supported by the casing on the periphery, and the protrusions are in a second direction parallel to the one surface. It is good also as a structure arrange | positioned between a pair of said support parts which space apart.

According to the above configuration, the amount of displacement (movement amount) of the protrusion can be increased, and the protrusion can easily maintain a straight posture with respect to the base during movement.

Further, as one aspect of the scalp cleaning brush of the present invention, the flat plate portion has a plurality of second protrusions on the one surface side, and the first protrusions are the plurality of second protrusions. It is good also as a structure which has height.

According to the above configuration, the other second protrusion comes into contact with the scalp while the first protrusion comes into contact with the scalp first. The first projecting portion displaced by being pressed against the scalp has a higher pressing force on the scalp than the second projecting portion with its elastic recovery. At the time of use, the scalp is always pressed by the first protrusions while the hair is scraped by the plurality of second protrusions. For this reason, the user can easily obtain a massage feeling.

Also, as one aspect of the scalp washing brush of the present invention, the first protrusion may have a larger diameter than the second protrusion.

According to the above configuration, the pressing force on the scalp by the first protrusion can be increased.

Further, as one aspect of the scalp cleaning brush of the present invention, the first protrusion is provided on the tip side and a plurality of tip portions provided on the tip side, and when viewed from the first direction, It is good also as a structure which has a base part which has a diameter of the magnitude | size including a some front-end | tip part.

According to the above configuration, it is easy to obtain a massage feeling because the contact with the scalp increases.

Further, as one aspect of the scalp cleaning brush of the present invention, the brush member includes a tapered second protrusion having a diameter that decreases toward the tip away from the brush surface, and a tip away from the brush surface. It is good also as a structure provided with the said 2nd projection part of the straight shape where a diameter is equal toward this.

According to the above configuration, the scalp can be scraped without being entangled by the tapered second protrusion, and the pressing force to the scalp can be increased by the straight second protrusion. For this reason, in the 2nd projection part, not only the action of dividing hair but also a massage action is obtained.

Moreover, as one aspect of the scalp cleaning brush of the present invention, the base has a plurality of hair bundles planted on the brush surface, and is arranged in one direction when viewed from the normal direction of the brush surface. It is good also as a structure by which the said projection part is each arrange | positioned so that the said several hair | bristle bundle may be inserted | pinched.

According to the above configuration, the scalp pore cleaning power by the hair bundle can be enhanced by dividing the hair with the protrusions.

Further, as one aspect of the scalp washing brush of the present invention, the flat plate portion may be provided with a recess that is recessed in the protrusion from the other surface side opposite to the one surface.

According to the above configuration, the amount of displacement (movement amount) of the protrusion can be increased by deforming the shape of the recess so that the opening of the recess opens when the protrusion reciprocates.

According to the scalp cleaning brush of the present invention, it is possible to give a high massage feeling while maintaining the cleaning power for the scalp and hair.

The perspective view which shows the structure of the brush for scalp washing | cleaning. The side view which shows the scalp washing brush of embodiment. The bottom view which shows the scalp washing brush. The disassembled perspective view which shows each structure of the brush 1 for scalp washing | cleaning. 2A and 2B are diagrams showing a schematic configuration of a base, in which FIG. 1A is a plan view, FIG. 1B is a cross-sectional view along line A-A ′, and FIG. FIG. 2 is a diagram illustrating a schematic configuration of a brush member, where (a) a plan view, (b) a cross-sectional view along line CC ′, (c) a cross-sectional view along line DD ′, and (d) a cross-sectional view along line EE ′. . It is a figure which shows the state which attached the brush member to the base, Comprising: (a) Top view, (b) F-F 'sectional view taken on the line, (c) G-G' sectional view. Assembly drawing of scalp cleaning brush. The top view which shows the structure of the brush for scalp washing | cleaning of Example 2. FIG. FIG. 6 is a plan view showing a configuration of a scalp cleaning brush according to a third embodiment. The top view which shows the structure of the scalp washing brush of the comparative example 1. FIG. The top view which shows the structure of the scalp washing brush of the comparative example 2. FIG.

A scalp washing brush according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a configuration of a scalp washing brush. FIG. 2 is a side view showing the scalp cleaning brush of the present embodiment. FIG. 3 is a bottom view showing the scalp cleaning brush.

First, an outline of the scalp cleaning brush will be described.
As shown in FIG. 1, the scalp cleaning brush 1 of this embodiment includes a base 2, a brush member 7, and a housing 4. The scalp washing brush 1 of this embodiment is used when washing one's own hair or another person, such as when taking a bath, and has a function not only for washing hair but also for scalp massage.
The base 2 has a plurality of hair bundle groups 3.
The brush member 7 has a first protrusion 11 and a plurality of second protrusions 12.
As shown in FIG. 2, the scalp cleaning brush 1 of the present embodiment includes a plurality of hair bundle groups 3 provided on the base 2, a first protrusion 11 provided on the brush member 7, and a plurality of first hairs. 2 protrusions 12, which bear the hair washing action. The housing 4 is provided with a gripping portion 42, and the user uses the gripping portion 42 so that the index finger and the middle finger are hooked and the main body 2A is gripped. Use this 42 while grasping.

As shown in FIGS. 2 and 3, the scalp cleaning brush 1 according to this embodiment includes a plurality of hair bundle groups 3 (in the illustrated example, four bundles as one group and 16 groups) on the brush surface 21 of the base 2. A plurality of (in the illustrated example, 13) protrusions 11 and 12 having elasticity are provided. A first protrusion 11 is provided at the center of the brush surface 21, and a plurality of second protrusions 12 are provided on the peripheral side of the brush surface 21.

In the scalp cleaning brush 1 according to the present embodiment, the first protrusion 11 having a diameter larger than that of the second protrusion 12 is in the normal direction (first direction) of the brush surface 21 with respect to the base 2. It can move back and forth. That is, when the scalp washing brush 1 is pressed against the head, the first protrusion 11 is displaced from the brush surface 21 so as to be recessed toward the housing 4 side.
In the present embodiment, the reciprocating distance of the first protrusion 11 with respect to the brush surface 21 is, for example, preferably 1 mm or more, and preferably 1 mm to 20 mm.

Here, as shown in FIG. 3, the units arranged in the major axis direction D1 of the elliptical brush surface 21 in a plan view are rows, and the units arranged in the minor axis direction (second direction) D2 are columns. The second protrusions 12 are provided on the brush surface 21 in an array of 6 rows and 2 columns. However, the second protrusions 12 are not provided at portions corresponding to the four corners of the array.

In the illustrated example, a pair of second protrusions 12A are provided on both sides of the brush surface 21 in the minor axis direction D2 in the first and sixth rows of the array, and two hair bundle groups 3 are provided between them. Exists. In the second to fifth rows of the array, a pair of second protrusions 12B are provided on both sides of the brush surface 21 in the minor axis direction D2. There are four hair bundle groups 3 between the pair of second protrusions 12B in the second and fifth rows of the array. In the third and fourth rows of the above array, the second projection 12B and the first projection on the other side are provided between one second projection 12B and the first projection 11 in the minor axis direction D2. 11, there is one hair bundle group 3.
As described above, the brush surface 21 of the scalp washing brush 1 has a plurality of hair bundle groups 3 arranged in a row in the short axis direction D2 of the base 2 and a pair of protrusions 12 on both sides of the row. Each exists.

In addition, the number of arrangement | positioning of 2nd projection part 12, arrangement pattern, length, thickness, the ratio of the hair | bristle bundle group 3 and the 2nd projection part 12, etc. which are comprised are not limited to the example of illustration.

Next, each component of the scalp washing brush 1 will be described in detail.
FIG. 4 is an exploded perspective view showing each configuration of the scalp washing brush 1. 5A and 5B are diagrams showing a schematic configuration of the base, in which FIG. 5A is a plan view, FIG. 5B is a sectional view taken along the line AA ′, and FIG. 5C is a sectional view taken along the line BB ′. FIG. 6 is a diagram showing a schematic configuration of the brush member, where (a) a plan view, (b) a CC ′ line cross-sectional view, (c) a DD ′ line cross-sectional view, and (d) EE FIG. FIGS. 7A and 7B are views showing a state where the brush member is attached to the base, in which FIG. 7A is a plan view, FIG. 7B is a cross-sectional view taken along the line FF ′, and FIG. 8 is an assembly drawing of a scalp cleaning brush.

(Base)
As shown in FIGS. 4 and 5A, the base 2 is a member formed in a flat plate shape having a substantially elliptical shape in plan view, and has a brush surface 21 that is a flocking surface and a side wall 2b. 2A. As shown in the drawing, the main body 2A is formed of a general hard resin material such as polypropylene, for example.

The main body 2 </ b> A is provided with a first insertion hole (insertion hole) 15 through which the first protrusion 11 is inserted at the center position of the brush surface 21, and a plurality of planting holes 8 on the peripheral side of the brush surface 21. A plurality of second insertion holes (insertion holes) 16 through which the second protrusions 12 are inserted are provided on the outer side. The first insertion hole 15 has a hole diameter larger than the diameter of the first protrusion 11 (see FIG. 7A). Thereby, the first protrusion 11 inserted through the first insertion hole 15 can move with respect to the base 2. On the other hand, since the second insertion hole 16 has a hole diameter substantially the same as the diameter of the second protrusion 12, the flexible second protrusion 12 is engaged with the second insertion hole 16. Stop (see FIG. 7B). For this reason, each 2nd projection part 12 becomes difficult to move with respect to the brush surface 21 of the base 2. As shown in FIG.

As described above, a plurality of hair bundles 3 a are implanted on the brush surface 21 of the base 2. The plurality of hair bundles 3 a are each planted in each planting hole 8 provided on the brush surface 21 to constitute each hair bundle group 3. In the present embodiment, one hair bundle group 3 is constituted by four hair bundles 3a.

The hair bundle 3a is configured by bundling a plurality (about 10 to 30) of hairs 31.
As the hair 31, tapering hair that tapers gradually toward the tip (taper hair), hair that has almost the same outer diameter except for the rounded portion of the hair tip (straight hair), and the hair tip is spherical. There are animal hairs such as certain hairs and pig hairs. In consideration of the good cleaning of the scalp pores, the hair 31 is preferably tapered hair that tapers gradually toward the tip. As a material of the taper hair, for example, a general resin material such as polybutylene terephthalate (PBT), polyethylene terephthalate (PET), polytrimethylene terephthalate (PTT), nylon, or polyester can be used. Further, for example, for the purpose of improving aesthetics, a material in which other components are mixed with a synthetic resin-based material, or a material in which an antibacterial agent or the like is added for the purpose of improving durability may be used.

The hair 31 preferably has a shape that is gradually reduced in diameter from the center toward the tip so that the diameter at a position of 0.1 mm from the tip is in the range of, for example, 5 to 50 μm. In this case, the diameter in the longitudinal direction of the bristles 31 is preferably in the range of 150 to 400 μm, for example, and more preferably in the range of 170 to 380 μm.
In the present embodiment, the average height from the brush surface 21 of the plurality of hair bundles 3a is all 13 mm.

As shown in FIGS. 5A and 5B, the base 2 is provided with a plurality of fitting claws 24 to be attached to the housing 4. The plurality of fitting claws 24 are arranged at predetermined intervals along the side walls 2b on both sides in the short axis direction D2 of the main body 2A. The means for attaching the base 2 to the housing 4 is not limited to this. For example, the fitting claw 24 may be disposed on the base 2 at a position different from the illustrated example, or the base 2 may be attached to the housing 4 by screwing or the like.

Further, as shown in FIG. 4 and FIG. 5A, the base 2 is provided with a pair of notches 14 at each edge on both sides in the long axis direction D1 and at the periphery of the brush surface 21. Yes. In a state where the base 2 is attached to the housing 4, the cutout portion 14 forms a through hole with the opening 41 (see FIG. 4) of the housing 4. Thereby, the inside of the scalp washing brush 1 is opened to the outside, and the water that has entered the base 2 is drained.

Furthermore, the base 2 is provided with a pair of mounting portions 25 as shown in FIGS. 4 and 5C. The attachment portion 25 is provided at an end portion of the brush surface 21 on the side of each notch portion 14 and is provided so as to extend to the back surface 26 side opposite to the brush surface 21. The pair of attachment portions 25 are for attaching the brush member 7 to the main body 2A (see FIG. 7C).

A plurality of hole forming portions 28 in which four planting holes 8 are formed and convex portions 29 protruding from the center of the hole forming portion 28 are formed on the back surface 26 at positions corresponding to the hair bundle group 3. Yes. Here, the front end surface of the convex portion 29 is flush with the end surface of the side wall 2b. Thereby, when planting the hair | bristle bundle 3a in the brush surface 21, the brush surface 21 can be maintained horizontal, and the damage of the base 2 is prevented.

(Brush member)
As shown in FIGS. 4 and 6A, the brush member 7 is formed in an elliptical shape in plan view with a flexible material, and includes a flat plate portion 9, a first protrusion 11, and a plurality of first members. 2 projection parts 12, a plurality of support parts 27, a plurality of base parts 22, and a pair of attachment parts 23.
Here, in addition to the ellipse defined by geometry, the ellipse shape is a shape that approximates an ellipse, such as an oval (a shape in which two semicircles are connected by two straight lines), an oval, or an ellipse. It is a concept including a shape obtained by squashing the shape in the major axis or minor axis direction.

The plate portion 9 has a thickness t within a range of 1 mm ≦ t ≦ 3 mm. When the plate thickness t is less than 1 mm, the durability is lowered and is easily damaged. When the plate thickness t is more than 3 mm, the flexibility of the flat plate portion 9 is lowered and the first protrusion 11 is recessed with respect to the brush surface 21. It becomes difficult.

As shown in FIGS. 6B to 6C, the flat plate portion 9 has a recess 9D that is recessed into the first protrusion 11 and the second protrusion 12 from the back surface 9b side opposite to the one surface 9a. Is provided. By providing the recess 9D, an effect that the first protrusion 11 is easily recessed can be obtained. The concave portion 9D has a tapered portion whose diameter decreases as the distance from the back surface 9b increases in the cross-sectional shape along the extending direction of the first protruding portion 11 and the second protruding portion 12.

In the flat plate portion 9, a plurality of through holes 9c penetrating in the plate thickness direction are formed. The through hole 9 c is formed at a position corresponding to the convex portion 29 provided on the back surface side of the base 2, and is for inserting the convex portion 29.

As shown in FIGS. 4 and 6, the first protrusion 11 and the plurality of second protrusions 12 face one surface 9 a of the flat plate portion 9 (the surface opposite to the brush surface 21 of the base 2). Surface) and extend parallel to each other in the normal direction (first direction) of the surface 9a.

The first protrusion 11 is located in the first region A1 (see FIG. 6B) in the center of the one surface 9a, and is inserted into the first insertion hole 15 of the base 2. The 2nd projection part 12 is located in 2nd field A2 (refer to Drawing 6 (c)) in the peripheral side of the above-mentioned one surface 9a, and is penetrated by the 2nd penetration hole 16 of the above-mentioned base 2. A plurality of bases 22 are provided in the second region A2 of the one surface 9a, and the second protrusions 12 extend from a part of the surface 22a of the base 22 respectively.

The first protrusions 11 are provided on the tip side (the flat plate part 9) side with the plurality of tip parts 18 provided on the tip side, and the plurality of tip parts 18 when viewed from the normal direction of the brush surface 21. And a root part 19 having a diameter including the diameter, and the tip side is branched.
In this embodiment, it has the four front-end | tip parts 18, it is provided so that two may be arranged in the major axis direction D1 and two in the minor axis direction D2 of the brush member 7, and it is in the state mutually spaced apart. Note that the number of the tip portions 18 is not limited to four and can be changed as appropriate. However, it is preferable to provide a plurality of tip portions 18 in order to increase the contact feeling with the scalp.

Further, as shown in FIGS. 6B and 6C, the base side of the first projecting portion 11 is formed on the first projecting portion 11 due to stress concentration caused by the reciprocating movement of the flat plate portion 9 in the plate thickness direction. In order to prevent the boundary portion between the flat plate portion 9 and the flat plate portion 9 from being broken, the shape is tapered.

In the present embodiment, there are four second protrusions 12A and eight second protrusions 12B, and a total of twelve second protrusions 12 are provided. The number of the second protrusions 12A and 12B is not limited to the number described above, and is preferably 4 or more and 20 or less, for example.
The second projecting portion 12A and the second projecting portion 12B have different external shapes, and the second projecting portion 12A is formed in a shape that is substantially the same in diameter toward the tip. On the other hand, the 2nd projection part 12B is formed in the taper shape which becomes gradually thin toward the front-end | tip. The maximum diameters of the second protrusions 12A and 12B are equal to each other, and are preferably in the range of 3 mm to 9 mm. In this embodiment, the diameter is about 6 mm. The maximum diameters of the second protrusions 12A and 12B may be different from each other.

In the present embodiment, the height h11 of the first protrusion 11 from the brush surface 21 is greater than the height h12 of the plurality of second protrusions 12 from the brush surface 21.
Moreover, both the 1st projection part 11 and the 2nd projection part 12 have height from the hair length h3 of the hair | bristle bundle group 3, and each height satisfy | fills the relationship of h11>h12> h3. Yes. Thus, the first protrusion 11 comes into contact with the hair or scalp first, and the second protrusion 12 comes into contact with the scalp before the plurality of hair bundle groups 3.
Specifically, the height h11 of the first protrusion 11 from the brush surface 21 is preferably in the range of 17.5 to 22 mm, and is 18.5 mm in this embodiment. The height h12 of the plurality of second protrusions 12 from the brush surface 21 is, for example, in the range of 15 mm or more and 21.5 mm or less, and is 17 mm in the present embodiment.
The height difference between the first protrusion 11 and the second protrusion 12 is preferably 0.5 to 5 mm.

As shown in FIG. 6 (a), a plurality of support portions 27 are provided in total, two on each side of the minor axis direction D2. The support portion 27 protrudes outward in the circumferential direction of the brush member 7 and is integrally formed with the base portion 22 provided with the second protrusion portion 12B. The support portion 27 is a portion that is supported by the housing 4 when the brush member 7 is incorporated into the housing 4. By these support portions 27, the periphery of the brush member 7 is supported by the housing 4 when the brush member 7 is incorporated into the housing 4. The first protrusion 11 described above is disposed at the center between the pair of support portions 27 that are separated on both sides of the brush member 7 in the short axis direction D2.

As shown in FIG. 6B, the brush member 7 is provided with a pair of attachment portions 23 on both sides of the flat plate portion 9 in the long axis direction D1. Each mounting portion 23 is curvedly formed toward the projections 11 and 12 rather than the one surface 9a of the flat plate portion 9, and has a locking hole 23a at each central portion. These locking holes 23a are locked to the mounting portion 25 (see FIG. 4) of the base 2 described above.

The material of the brush member 7 is preferably a material having a numerical value (Shore A hardness) measured according to JIS K6251 by a durometer type A of 40 degrees or more and 90 degrees or less, and a material of 40 degrees or more and 80 degrees or less. More preferred. Specific examples of the material include polyolefin resins such as polyethylene and polypropylene, synthetic resins such as nylon and polyacetal, and elastic materials such as various elastomers such as polyethylene, polypropylene, styrene, silicone, and urethane rubber. Here, it is more preferable to use an elastomer among the above materials from the viewpoint that the massage effect can be efficiently imparted to the scalp.
In the present embodiment, the entire brush member 7 is integrally formed of the same material, but may be formed using partially different materials.

(Case 4)
As shown in FIG. 4, the housing 4 is a hollow member having an opening 41 and having a cavity (hollow portion) 4 a formed therein. The housing 4 is made of a resin such as polystyrene resin.

The housing 4 has, for example, an elliptical shape in plan view, and is formed so that its diameter increases from the top end 4f toward the opening 41 and decreases from a predetermined position toward the opening 41. The case 4 has a dome shape connected by a smooth curve.
Here, in addition to the ellipse defined by geometry, the ellipse shape is a shape that approximates an ellipse, such as an oval (a shape in which two semicircles are connected by two straight lines), an oval, or an ellipse. It is a concept including a shape obtained by squashing the shape in the major axis or minor axis direction.

The housing 4 is formed with a curved portion 4c in which both sides in the short axis direction D2 form a circular arc-shaped outline in plan view. The curved portion 4c on one side in the minor axis direction D2 is positioned below when the scalp washing brush 1 is placed with the brush surface 21 obliquely upward.

A plurality of discharge ports 13 for discharging water in the cavity 4a are formed on both sides of the housing 4 in the short axis direction D2. Specifically, in the present embodiment, the discharge port 13 is formed in the curved portion 4 c of the portion of the housing 4 that has the largest diameter and projects (that is, the portion that projects outward of the base 2).

The number of outlets 13 is not particularly limited, but is preferably 1 or more and 7 or less, for example. By setting the number of the discharge ports 13 within the above range, the water in the housing 4 is drained more quickly, and the strength at the time of dropping can be maintained and cracking can be prevented.

At the top end 4 f of the housing 4, a grip portion 42 that protrudes away from the brush surface 21 is provided. The gripping part 42 includes a sandwiching part 42a and a locking part 42b so that the user can easily operate the scalp washing brush 1 with one hand. The sandwiching portion 42a is a member having the long axis direction D1 as a longitudinal direction in plan view. The locking portion 42b is a flat plate-like member having an elliptical shape in plan view, is provided at the protruding end of the pinching portion 42a, and can be locked with an index finger and a middle finger. The protruding height of the grip portion 42 from the top end 4f and the shape of the grip portion 42 are preferably set in consideration of the size of the user's finger and the like so as to be easy to operate.

As shown in FIGS. 7 and 8, the base 2 with the brush member 7 already attached is fitted into the opening 41 of the housing 4 in the direction indicated by the arrow J in FIG. The Thus, when the base 2 is mounted | worn, the hole 17 and the discharge port 13 which were formed in the base 2 have overlapped by the side view. Also, the hole 17 allows the cavity in the base 2 and the outside of the housing 4 to communicate with each other through the hole 17 and the discharge port 13.

As shown in FIG. 4, stepped portions 43 </ b> A and 43 </ b> B projecting from the periphery of the opening 41 toward the center of the housing 4 in a plan view are provided inside the housing 4. Further, notches 44 are formed on both sides of the housing 4 in the short axis direction D2 from the inside of the housing 4 to the discharge port 13. The stepped portion 43 </ b> B exists between the notches 44.

In this configuration, when the base 2 is fitted and attached to the opening 41 of the housing 4, the base 2 hits the stepped portion 43 </ b> A and is positioned. Further, the brush member 7 attached to the inside of the base 2 is supported at the stepped portion 43B. Specifically, the movement of the brush member 7 toward the housing 4 is restricted by the support portion 27 of the brush member 7 coming into contact with the stepped portion 43 </ b> B of the housing 4.
The configuration is not limited to the above-described configuration. For example, a resin ring-shaped member may be fitted into the opening 41 without providing the stepped portions 43A and 43B in the housing 4. The support portion 27 of the brush member 7 comes into contact with this ring-shaped member.

Further, since the cutout 44 is provided, the water that has entered the cavity 4a is efficiently collected along the cutout 44 at the discharge port 13, and is quickly drained from the discharge port 13.

Next, a method for using the scalp washing brush will be described.
The user sandwiches the grip 42 between the index finger and the middle finger, and cleans the scalp by reciprocating in the short axis direction D2 of the brush surface 21 of the base 2 on the scalp. At this time, if the scalp washing brush 1 is used so that the brush surface 21 faces the scalp, first, the first protrusion 11 of the scalp washing brush 1 comes into contact with the scalp or the hair and the housing. It dents to the body 4 side, and the 2nd projection part 12 contacts a scalp or hair continuously. In this state, when the user reciprocates the scalp washing brush 1 in the short axis direction D2, the hair is scraped by the plurality of second protrusions 12 and the scalp pores are washed by the hair bundle group 3. . Since the plurality of second protrusions 12 are not structured to be recessed with respect to the brush surface 21, the hair can be efficiently scraped.

According to the scalp washing brush 1 of the present embodiment, the pores can be washed by the plurality of hair bundle groups 3, and the massage effect can be imparted to the scalp by the first protrusions 11 and the plurality of protrusions 12. In particular, in the present embodiment, since the first protrusion 11 is configured to reciprocate with respect to the brush surface 21, when the scalp washing brush 1 is used, the first protrusion 11 is applied to the scalp or scalp. It will be in a state where it is depressed by contact. That is, the first protrusion 11 can be displaced following the user's movement, and the first protrusion 11 presses the scalp with its elastic restoring force. Thereby, the user can obtain a feeling that the scalp is pressed by the first protrusion 11 and can obtain both a higher massage effect and a massage feeling.

Further, according to the scalp cleaning brush 1 of this embodiment, even if the scalp is sensitive, when the scalp cleaning brush 1 is pressed against the scalp, excessive force is less likely to be applied to the scalp, resulting in pain. There is no feeling.

The brush member 7 of the present embodiment is fixed in the housing 4 by the support portion 27 coming into contact with the stepped portion 43B of the housing 4. The first protrusion 11 is a central portion of the brush member 7 and is disposed approximately in the middle between the support portions 27 in the minor axis direction D2. For this reason, the displacement amount (movement amount) of the first protrusion 11 in the normal direction of the brush surface 21 can be increased, and the first protrusion 11 can easily maintain a straight posture. Therefore, the 1st projection part 11 can be repeatedly dented stably.

In addition, by providing the first protrusions 11 higher than the plurality of second protrusions 12 provided in the periphery, the second protrusions 11 are in contact with the scalp before the other second The projecting portion 12 comes into contact with the scalp. The first protrusion 11 that is displaced by being pressed against the scalp has a higher pressing force on the scalp than the second protrusion 12 with its elastic recovery. In use, the scalp is constantly pressed by the first protrusions 11 while the scalp is scraped by the plurality of second protrusions 12. For this reason, the user can easily obtain a massage feeling.

Further, by providing a large number of second protrusions 12 lower than the first protrusions 11 around the first protrusions 11, the massage effect is enhanced without impairing the dent effect of the first protrusions 11. be able to.

In the present embodiment, the first protrusion 11 has a larger diameter than the second protrusion 12. For this reason, the pressing force to the scalp by the 1st projection part 11 can be raised rather than the 2nd projection part 12. FIG.

Further, by arranging four conical-shaped second protrusions 12B, which are gradually tapered toward the tip, on the center side in the major axis direction D1 of the brush member 7, the hair is separated without being entangled. Can do. On the other hand, by disposing the columnar second protrusions 12A that are substantially the same in diameter toward the tip, on both sides in the long axis direction D1, the pressing force on the scalp can be increased. For this reason, in 2nd projection part 12A, 12B, not only the scalping effect of a hair is improved but a massage effect is also heightened.

Further, in the base 2 of the present embodiment, a plurality of hair bundles 3a are planted on the brush surface 21, and a plurality of hair bundles 3a forming a row in one direction are sandwiched so that the second side is arranged on both sides of the row. Two protrusions 12 are arranged. Thereby, the scalp pore cleaning power by the hair bundle 3a can be increased by scraping the scalp hair by the second protrusion 12.

Further, the brush member 7 of the present embodiment is provided with a recess 9D that is recessed into the first protrusion 11 from the other surface side opposite to the one surface of the flat plate portion 9. For this reason, when the first protrusion 11 is reciprocated, the shape of the recess is deformed so that the opening of the recess 9D is opened, whereby the displacement (movement) of the first protrusion 11 can be increased.

Thus, according to the scalp washing brush 1 of the present embodiment, a high massage feeling can be given to the user while maintaining a high detergency for the scalp and hair.

Although the scalp cleaning brush 1 according to one embodiment of the present invention has been described above, the scalp cleaning brush according to the present invention is not limited to the above-exemplified embodiment.
For example, in the present embodiment, the first protrusion 11 is configured to reciprocate in the normal direction relative to the base 2, but the second protrusion 12 may be configured similarly. .
Moreover, the number of the front-end | tip parts 18 formed on the root part 19 of the 1st projection part 11 is although it does not specifically limit, The contact feeling to a scalp can be improved by providing the front-end | tip part 18 in multiple numbers. For example, the number of the tip portions 18 is preferably 1 to 7, and more preferably 3 to 6.
In the present embodiment, two types of second protrusions 12A and 12B having different shapes are provided. However, only either the second protrusion 12A or the second protrusion 12B may be used.

Hereinafter, the present invention will be described in detail with reference to Examples 1 to 3, but the present invention is not limited to the following description. Table 1 shows the specifications of Examples 1 to 3.

[Example 1]
The brush member 7 was manufactured by the following procedure, and the base 2 to which the brush member 7 was attached was attached to the housing 4 to produce a scalp cleaning brush P1 having the form shown in FIG.

(Preparation of base)
The base 2 having a substantially elliptical shape in plan view of 79.0 mm (long axis) × 64.3 mm (short axis) and having a thickness of 4.5 mm is prepared. The insertion holes 15 and 16 through which the second protrusions 12 are inserted and the planting holes 8 for planting the hair bundle 3a were formed. The diameter of the first insertion hole 15 was about 16 mm, and the diameter of the second insertion hole 16 was about 6 mm.

(Production of hair)
Using a conventionally known method in which a raw yarn of poly (butylene terephthalate) (PBT) having a diameter of 190 μm is cut into equal dimensions and immersed in a high-concentration NaOH solution heated to a specified temperature to perform chemical processing, both ends are used. The part was processed into a tapered shape to obtain hair. This hair has a diameter of about 20 μm at a site 0.1 mm from the tip, a diameter of about 200 μm at a site 3 mm from the tip, and a diameter of about 305 μm at a site 13 mm from the tip. The average length of the hair 31 is 26.0 mm ± 1.0 mm.

(Flocking hair)
About 15 obtained hairs 31 are bundled in a bundle of about 15 hairs, and the hairs are planted in the predetermined planting holes 8 of the base 2 so that the hairs are put in the predetermined planting holes 8. The bundle 3a was attached. A plurality of hair bundle groups 3 were provided by planting a large number of hair bundles 3 a on the brush surface 21. Here, one hair bundle group 3 was constituted by four hair bundles 3a arranged on the circumference of a virtual circle having a diameter of 3.5 mm. Polybutylene terephthalate was used as the material for the hair 31.

(Production of brush member)
An unillustrated elastic substrate having protrusions 11 and 12 having a true circular cross section intersecting the protruding direction formed on the surface was produced by integral molding. The first protrusion 11 at the center of the brush surface 21 has a height from the brush surface 21 of 18.5 mm, and the second protrusion 12 at the peripheral edge of the brush surface 21 extends from the brush surface 21. The height was set to 17 mm. The first protrusion 11 has a tip 18 having a diameter of 5.5 mm and a root 19 having a diameter of 14 mm. The first protrusion 11 has a diameter of about 16 mm (actually 15.8 mm) formed on the base 2. It is inserted into the first insertion hole 15. As the material of the brush member 7, a styrene elastomer (hardness: 60A) was used.

(Production of housing)
A casing 4 having a gripping portion 42 as shown in FIG. 1 and made of polystyrene resin was molded.
The major axis of the elliptical housing 4 in plan view is about 1.2 times the minor axis. The diameter of the inscribed circle of the opening of the discharge port 13 was about 2.7 mm.

(Preparation of scalp cleaning brush)
A plurality of hair bundles 3 a are planted on the brush surface 21, and the base 2 on which insertion holes 15 and 16 for inserting the projections 11 and 12 are formed, and the brush member 7 having the projections 11 and 12. Were fitted into the opening 41 of the housing 4 molded in the above-mentioned process and attached integrally, and the scalp washing brush 1 of Example 1 was obtained. At this time, the brush member 7 was attached to the base 2, and the protrusions 11 and 12 inserted through the insertion holes 15 and 16 formed in the base 2 and protruding from the brush surface 21 were assembled.

[Example 2]
Next, a scalp cleaning brush P2 of Example 2 having the specifications shown in Table 1 was prepared. FIG. 9 is a plan view showing a schematic configuration of the scalp washing brush of Example 2. FIG.
As shown in FIG. 9, the scalp washing brush P2 is different from the first embodiment in that the second protrusion 12B is provided at the same place instead of the hair bundle group 3. Here, the base 2 provided with the same number of second insertion holes 16 (see FIG. 4) instead of the 16 hair bundle groups 3, and the same number of second protrusions instead of the 16 through holes 9c. A brush member 7 provided with 12B was prepared and used as scalp washing brush P2. The plurality of second protrusions 12B do not move with respect to the base 2 because the diameter of each of the second protrusions 12B is equal to the hole diameter of each of the second insertion holes 16 to be inserted. As in the first embodiment, since it is inserted into the first insertion hole 15 having a diameter larger than the diameter, it moves relative to the base 2.
Since the second protrusions 12A and 12B and the second insertion hole 16 have substantially the same diameter, only the second protrusions 12A and 12B are shown in FIG. 9, and the second insertion hole 16 is illustrated. Is omitted.

[Example 3]
Next, a scalp cleaning brush P3 of Example 3 having the specifications shown in Table 1 was prepared. FIG. 10 is a plan view illustrating a schematic configuration of a scalp cleaning brush of Example 3. FIG.
As shown in FIG. 10, also in scalp washing brush P3, instead of 16 hair bundle groups 3, the same number of second protrusions 12B were provided at the same location. Furthermore, instead of the cylindrical second protrusion 12A, four conical second protrusions 12B were provided, and a brush member 7 having 28 conical second protrusions 12 on one surface was prepared. .

Further, in Example 1, a brush member having one root portion 19 and four tip portions 18 and having one first protrusion 11 branched at the tip side was used, but in Example 3, The brush member 7 provided with four cylindrical first protrusions 11A separated from each other was used. All of the four first protrusions 11 were inserted into the first insertion hole 15 of the base 2 to obtain the scalp washing brush P3 of Example 3. Each first protrusion 11A has a cylindrical shape with a diameter of 6 mm. That is, as shown in Table 1, the diameter of the base portion of the first protrusion 11A was 6 mm.

(Evaluation)
Using the scalp washing brushes P1 to P3 of Examples 1 to 3 obtained, visual evaluation was performed on the evaluation criteria described below by the test panel for two items of “massage feeling” and “pore cleaning feeling”. . The results are shown in Table 1.

(1) Massage Feeling Ten users scored the massage feeling when scalp washing was performed using shampoos with scalp washing brushes P1 to P3 in the following 6 stages, and the average values were taken.
6 points · · · Very good massage · 5 · · · quite good massage · 4 · · · slightly good massage · 3 · · · slightly bad massage · 2 · · · very good massage Poor 1 point ・ Massage feeling is very bad (2) Feeling of pore cleaning Actual feeling of pore cleaning when 10 users performed scalp cleaning with shampoo with brushes P1 to P3 for scalp cleaning Each of the 6 levels was scored and averaged.
6 points ... The pore cleaning feeling is very good 5 points ... The pore cleaning feeling is quite good 4 points ... The pore cleaning feeling is slightly good 3 points ... The pore cleaning feeling is slightly bad 2 points ... Pore cleaning feeling is quite bad 1 point ... Pore cleaning feeling is very bad

[Comparative Example 1]
FIG. 11 is a plan view showing a schematic configuration of a scalp washing brush of Comparative Example 1. FIG.
A scalp cleaning brush Q1 of Comparative Example 1 as shown in FIG. 11 is created by substantially the same procedure as in Example 3, and the four first protrusions 11A are not recessed with respect to the base 2. . The scalp washing brush Q1 has four cylindrical first protrusions 11A instead of the first protrusion 11 as in the first embodiment, as in the third embodiment. However, this embodiment is different from the third embodiment in that each first protrusion 11A is inserted into each of the four second insertion holes 16 formed in the central portion of the base 2. By inserting the first protrusion 11A into the second insertion hole 16 having a hole diameter (6 mm) similar to the diameter (6 mm) of the first protrusion 11A, four first protrusions 11A was configured not to be recessed (does not reciprocate) with respect to the base 2.

[Comparative Example 2]
12 is a plan view showing a schematic configuration of a scalp washing brush of Comparative Example 2. FIG.
A scalp washing brush Q2 of Comparative Example 2 as shown in FIG. 12 was created by substantially the same procedure as in Example 3, and the first protrusion 11B was not recessed with respect to the base 2. The scalp washing brush Q2 includes 28 second protrusions 12B instead of the 16 hair bundle groups 3 and the 4 second protrusions 12A, as in the second and third embodiments. And a single first protrusion 11B having the same diameter as that of the first insertion hole 15 (15.8 mm). In Example 1 and Example 2, the first protrusion 11 was branched at the tip. In Comparative Example 2, the first protrusion 11B was not branched at the tip. Also in Comparative Example 2, the first protrusion 11B is configured not to be recessed (not reciprocated) with respect to the base 2.

(Evaluation)
Using the obtained scalp cleaning brushes Q1 and Q2 of Comparative Examples 1 and 2, scoring was performed using the shampoo in the same manner as in Examples 1 to 3, and the massage feeling was scored in the following 6 stages. Averaged. The results are shown in Table 1.

　　　　　　　　　　　　　　　　　　
 

[Evaluation results]
As shown in Table 1, in the scalp washing brush P1 of Example 1, the back surface 26 of the brush member 7 is exposed in the cavity 4a of the housing 4, and no member covering the back surface 26 side is provided. Absent. Therefore, in the scalp cleaning brush 1 of Example 1, the first protrusion 11 is recessed with respect to the brush surface 21 during use, and both the “massage feeling” and the “pore cleaning feeling” are “6 points”. Good results were obtained. In addition, since the first insertion hole 15 larger than the diameter of the first protrusion 11 is formed in the base 2, the first protrusion 11 can reciprocate freely, and the first protrusion The scalp was moderately pressed by the elastic return force of the portion 11, and a high massage feeling was obtained.

In the scalp cleaning brush P2 of Example 2, the first protrusion 11 that is recessed with respect to the base 2 as in Example 1, and a number of second protrusions 12A and 12B provided on the brush surface, As a result, a very good result of “5 points” was obtained for the “feeling of massage”. However, because of the configuration without the hair bundle, the “feeling of pore cleaning” was “4 points”.

The scalp washing brush P3 of Example 3 has four cylindrical first protrusions 11A that are recessed with respect to the base 2, but the diameter of the first protrusion 11A is 6 mm, The shape is thinner than the first protrusion 11 of Example 1 having a diameter of 14 mm. For this reason, although the evaluation of the massage feeling was “4 points”, the results were clearly superior to those of Comparative Examples 1 and 2.

In contrast to Examples 1 to 3, in the scalp washing brush Q1 of Comparative Example 1, the diameters of the four first protrusions 11A provided in the center are the second insertion holes 16 provided in the base 2. The dimension is substantially equal to the hole diameter. For this reason, the movement of the four first protrusions 11 </ b> A toward the housing 4 is restricted, and the first protrusions 11 </ b> A are not recessed with respect to the brush surface 21.
Thereby, the evaluation of “feeling of massage” was “2 points”, which was considerably worse than Examples 1 to 3.

Further, in the scalp washing brush Q2 of Comparative Example 2, the diameter of one first protrusion 11B whose tip is not branched is substantially equal to the diameter of the first insertion hole 15 provided in the base 2. It is a dimension. For this reason, the movement of the first protrusion 11 </ b> B toward the housing 4 is restricted, and the first protrusion 11 </ b> B is not recessed with respect to the brush surface 21.
As a result, as in Comparative Example 1, the evaluation of “massage” was 2 points, which was considerably worse than Examples 1 to 3.

As described above, according to scalp washing brushes P1 to P3 of Examples 1 to 3, one or a plurality of first protrusions provided in the central portion are recessed with respect to the brush surface 21 during use. As compared with the scalp cleaning brushes Q1 and Q2 of Comparative Examples 1 and 2 having a structure in which the first protrusion is not recessed, it was found that both the “feeling of massage” and the “feeling of pore cleaning” were excellent.

DESCRIPTION OF SYMBOLS 1 ... Brush for scalp washing, 2 ... Base, 3a ... Hair bundle, 4 ... Housing, 4a ... Cavity (hollow part), 7 ... Brush member, 9 ... Flat plate part, 9a ... One side, 9D ... Recessed part, t ... Plate thickness, 11 ... 1st projection part, 12 ... 2nd projection part, 15 ... 1st insertion hole (insertion hole), 16 ... 2nd insertion hole (insertion hole), 18 ... Tip part, 19 ... Root part , 21 ... brush surface, 27 ... support part, 41 ... opening, A1 ... first region, D2 ... minor axis direction (second direction), P1, P2, P3 ... for scalp washing of Examples 1, 2 and 3 Brush, Q1, Q2 ... Brushes for scalp cleaning of Comparative Examples 1 and 2

Claims (8)

1. A base having an insertion hole on the brush surface;
   A flexible flat plate portion and a first region on one surface side of the flat plate portion opposite to the surface opposite to the brush surface are inserted in the insertion hole and extend in a first direction intersecting the one surface. A brush member having a flexible protrusion;
   A housing having an opening to which the base and the brush member are mounted and formed in a hollow shape,
   The protrusion is inserted into the insertion hole having a larger diameter than the protrusion, and is reciprocally movable in the first direction with respect to the base together with the first region of the flat plate. Characteristic scalp cleaning brush.
2. The brush member has a plurality of support portions supported by the casing on the periphery,
   The scalp cleaning brush according to claim 1, wherein the protrusion is disposed between a pair of the support portions that are separated in a second direction parallel to the one surface.
3. A plurality of second protrusions on the one surface side of the flat plate portion;
   The scalp cleaning brush according to claim 1, wherein the first protrusion has a height higher than the plurality of second protrusions.
4. The scalp cleaning brush according to claim 3, wherein the first protrusion has a diameter larger than that of the second protrusion.
5. The first protrusion is
   A plurality of tip portions provided on the tip side;
   The scalp washing brush according to claim 3, further comprising: a root portion provided on a root side and having a diameter having a size including the plurality of tip portions when viewed from the first direction.
6. The brush member is provided with the tapered second protrusion having a diameter that decreases toward the tip, and the straight second protrusion having an equal diameter toward the tip. The scalp washing brush according to any one of 3 to 5.
7. In the base, a plurality of hair bundles are planted on the brush surface,
   The scalp washing brush according to any one of claims 1 to 6, wherein the protrusions are respectively arranged on both sides of the plurality of hair bundles arranged in a row in one direction.
8. The scalp washing brush according to any one of claims 1 to 7, wherein the flat plate portion is provided with a recess that is recessed from the other surface side opposite to the one surface into the protrusion.

Images