WO2019215961A1

WO2019215961A1 - Hairbrush

Info

Publication number: WO2019215961A1
Application number: PCT/JP2019/001818
Authority: WO
Inventors: 智裕小柳; 敏英森川
Original assignee: シャープ株式会社
Priority date: 2018-05-11
Filing date: 2019-01-22
Publication date: 2019-11-14
Also published as: TW201946567A; JP7271526B2; JPWO2019215961A1

Abstract

The present invention efficiently catches hair on bristles and enhances the setting capability of hair. This hairbrush is provided with a head part (70), wherein setting parts (30, 40, 50) composed of heat conductors that conduct heat to hair are arranged on a first surface of the head part (70). The setting parts are provided with a plurality of bristles (20, 21, 22, 31, 32, 41, 42, 52) extending from the surfaces of the setting parts (30, 40, 50). Cross-sections perpendicular to the height direction of the bristles have elliptical shapes having a long axis and a short axis. The short axes are arranged so as to have an angle rotated in one direction with respect to the longitudinal axial lines of the setting parts (30, 40, 50). The centers of cross-sections of the bristles at the first surface are geometrically arranged on the first surface. The geometrical arrangement is along a portion of a spiral on the first surface.

Description

hairbrush

The present invention relates to a hair brush, particularly an electric hair brush for setting hair.

In conventional hair styling, various methods such as a hair iron, a hair brush, and a combination of a brush and a hair dryer were used. For example, in a hair iron, hair is first combed and then the hair is pinched with an iron and set.

Utility model No. 3206808 JP 2013-240434 A JP 2007-229316 A

However, in the conventional techniques as described above, for example, a hair brush can be set in one step, but there is a problem that heat is not easily transmitted to the hair if the hair cannot be caught well. On the other hand, when the number of pins of the brush is increased too much, there is a problem that damage to the hair increases due to the hair becoming tangled or not being pulled out.

The present invention has been made in view of the above-described problems, and an object thereof is to realize that the hair is efficiently caught by the bristle and the hair setting power is increased.

In order to solve the above problems, a hairbrush according to the present invention is a hairbrush provided with a head part, and a set part made of a heat transfer body for transferring heat to the hair is disposed on the first surface of the head part. The set portion includes a plurality of bristles extending from the surface of the set portion, and a cross section perpendicular to the height direction of the bristles is an elliptical shape having a major axis and a minor axis, and the minor axis is , Arranged so as to have an angle rotated in one direction with respect to the longitudinal axis of the set portion, and the center of the cross section of the bristle on the first surface is geometrically arranged on the first surface And the geometric arrangement is an arrangement along a part of a spiral in the first surface.

According to the present invention, according to the above configuration, there is an effect that the hair can be bent using a region having a large elliptical curvature.

According to one aspect of the present invention, the hair is efficiently caught by the bristle and the hair setting power can be increased.

It is the schematic which shows the arrangement | sequence of the bristle of the hairbrush which concerns on a prior art. It is the schematic which shows the geometric arrangement | sequence of the bristle of the hairbrush which concerns on Embodiment 1. FIG. It is the schematic which shows typically the arrangement | sequence of the bristle of the hairbrush which concerns on Embodiment 2. FIG. It is the schematic which shows typically the arrangement | sequence of the bristle of the hairbrush which concerns on Embodiment 3. FIG. 10 is a schematic perspective view of a set unit according to Embodiment 4. FIG. FIG. 10 is a schematic side view of a set unit according to a fifth embodiment. It is a front view of the hairbrush which concerns on Embodiment 6. FIG. It is a rear view of the hairbrush which concerns on Embodiment 6. FIG. (A) is a side view of the hairbrush which concerns on Embodiment 6, (b) is a perspective view of the hairbrush which concerns on Embodiment 6. FIG. It is a 6th page figure of the hairbrush which concerns on Embodiment 6. FIG.

FIG. 1 shows a schematic diagram of

bristle arrangement modes

100 and 110 of a conventional hairbrush. Although the appearance of the hairbrush is not shown in FIG. 1, only the arrangement of the bristle viewed from the direction facing the brush surface (xy plane) (the z-axis direction perpendicular to the xy plane) is schematically shown. As shown to Fig.1 (a), in the general hairbrush, the bristle 10 is arranged in the grid form. With this structure, the hair slips through in a certain direction 101 on the xy plane. In another prior art, as shown in FIG.1 (b), the bristle 11 is arranged alternately (patent document 1).

Patent Document 1 (utility model No. 3206808) proposes a structure in which a brush and a hair iron are combined. The brush according to Patent Document 1 is convenient because it is not necessary to comb the hair once, but the arrangement of bristle (pins) is in series with respect to the y-axis direction in the xy plane (FIG. 3A). Although the present invention is for straight use, such an arrangement structure causes hair to slip through in a certain direction 111 on the xy plane. Therefore, it is necessary to increase the number of bristle or to set the size of each bristle large. In Patent Document 1, there is almost no gap between the bristle (FIG. 3A), and it is considered that the hair is damaged by strong friction.

Also, Patent Document 2 proposes a bristle that matches the curvature of a human head, and it is conceivable to design a brush according to this shape. However, although it seems that there is a feeling of fit about the head, for example, in a part where the hair is long and away from the head, the feeling of use is rather deteriorated. Patent Document 3 proposes a dryer with increased gripping power by animal hair, but heat cannot be transmitted evenly and efficiently.

There is a need for a hairbrush for setting that can increase the grip of hair and efficiently transfer heat to the hair in a short time.

Embodiment 1
Hereinafter, an embodiment of the present invention will be described in detail.

The hair brush according to the present invention is a hair brush having a head part for combing hair, and the head part has a set part for setting hair. In a preferred embodiment, the set portion is disposed on one surface of the head portion. The set part is composed of a heat transfer body that transfers heat to the hair, and has a plurality of pin shapes (brissles) that rise perpendicularly (z-axis direction) to the surface (xy plane) (brush surface) of the set part.

FIG. 2 is a schematic view showing the geometric arrangement of the bristle of the hairbrush according to the present invention. 2 (a) to 2 (c) do not show the appearance of the hairbrush, but the geometric arrangement of the

bristles

20, 21, 22 as viewed from the direction facing the brush surface (the z-axis direction perpendicular to the xy plane) Only is shown schematically.

In a preferred embodiment of the present invention, the centers (see FIGS. 3B and 3I) of the pin-

shaped bristle

20, 21, 22 in the xy plane are arranged along a certain geometric shape. A preferred geometric shape is a two-dimensional curve, more preferably a spiral. In this specification, the spiral means a spiral two-dimensional curve that moves away from the center as it turns. In a preferred embodiment of the present invention, a bristle is provided along a part of the spiral in the xy plane.

Here, “part of the spiral” means a part of the spiral included in the region constituting the set portion of the xy plane that conceptually expands. Preferably, the xy plane coordinates constituting the set unit are spirals having a pitch such that a plurality of spiral tracks are generated. For example, in FIG. 2A, it can be confirmed that at least 11 spiral tracks 202 are generated in the xy plane coordinates constituting the set unit. In FIG. 2B, it can be confirmed that at least 11 spiral tracks 212 are generated in the xy plane coordinates constituting the set unit. In FIG. 2C, it can be confirmed that at least 12 spiral tracks 222 and at least 16 spiral tracks 223 are generated in the xy plane coordinates constituting the set unit. A mode in which the bristle is arranged along a part of the spiral spiral on the xy plane is also referred to as “spiral arrangement” or “spiral arrangement”. The mode of the spiral is not limited to an algebraic spiral such as an Archimedean spiral, and a logarithmic spiral or the like can be adopted. In a preferred embodiment, a Fibonacci spiral can be employed. Various parameters such as the initial radius and pitch of the spiral can be arbitrarily set.

In a preferred embodiment, an Archimedean spiral (algebraic spiral) that can be described as r = aθ in polar coordinates can be employed. For example, in the track 223 in FIG. 2C, when the parameter a is 0.017 and θ = t × 360, 16 tracks with t of 20 to 35 are generated. In the track 222 in FIG. 2C, when the parameter a is 0.02 and θ = −t × 360, twelve tracks having t of 36 to 47 are generated.

In the configuration according to the present invention in which the

bristles

20, 21, 22 are arranged in a spiral shape on the xy plane, the metal pins (brissles) 20, 21, 22 are evenly arranged. This ensures that the metal pins (brissles) 20, 21 and 22 come into contact with the hair to be slipped through without depending on the place or

direction

201 or 211 into which the hair enters (FIGS. 2A and 2B). reference). As a result, the hair is caught by the metal pins (brissles) 20, 21, 22 and the hair setting power can be increased.

2A and 2B, the direction of the spiral may be the direction of the track 202 or the direction of the track 212. Further, as shown in FIG. 2C, it is also preferable to arrange the bristle 22 at the intersection of the spiral tracks 222 and 223 in two directions. The hair brush is used for the entire hair, and a right-handed user and a left-handed user are assumed. Therefore, the direction in which the hair proceeds cannot be specified depending on the use situation. If it is the structure shown in FIG.2 (c), even if hair enters from which direction, it will be caught by the bristle 22, and the setting power of hair can be improved. The plurality of pins may be arranged along the first track in one spiral, and the other plurality of pins may be arranged along the second track (the second track is adjacent to the first track) in the spiral.

In another preferred embodiment, the hair brush includes a grip portion and a head portion, and the head portion may have an elliptical column shape having a height in the major axis direction of the hair brush. In the case of such an elliptical columnar head portion, the set portion is preferably provided so as to be disposed on the surface of the elliptical column.

As shown in FIG. 3, the cross-sectional shape of the bristle in the xy plane is preferably an elliptical shape (see FIGS. 3B and 3I). In FIGS. 3B and 3I, the axis parallel to the x-axis passing through the center is the major axis, and the axis parallel to the y-axis passing through the center is the minor axis. When the major axis and the minor axis are equal (see FIGS. 3B and 3), the cross-sectional shape of the bristle is circular. In this specification, the circular shape is an aspect of an elliptical shape.

When brushing with a hair brush, the hair tries to pass through the gap as much as possible. For example, in Patent Document 1, for example, when a hairbrush moves in a certain direction (the direction opposite to 111), most hair may slip through. In such a situation, the hairbrush bristle 11 cannot catch the hair, and heat cannot be transferred to the hair through the bristle 11, so that the hair cannot be set in a desired style. In Patent Document 1, in order to prevent the hair from slipping through, measures such as increasing the thickness of the heat transfer pins or increasing the number of heat transfer pins are taken to increase the density of the bristle 11. Yes. However, if the density of the metal bristle is increased unnecessarily, the gap in the y-axis direction between the bristle becomes narrower. As a result, friction with the hair becomes strong, the hair is damaged, and the hair becomes difficult to enter between the pins.

On the other hand, the gap in the y-axis direction between the bristle arranged in a spiral shape according to the present invention is not as narrow as the gap in Patent Document 1. With this configuration, it is possible to reliably set the hair while reducing damage to the hair as compared with the conventional bristle arrangement.

[Embodiment 2]
Another embodiment of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

FIG. 3 schematically shows the arrangement of the bristle according to the second embodiment. FIG. 3A shows a front view of a set unit in which bristles 31 and 32 are arranged on two

spiral tracks

222 and 223 on the set unit 30 (xy plane). 3B and 3I show the cross-sectional shape of the bristle 31 in the xy plane, and FIGS. 3B and ii show the cross-sectional shape of the bristle 32 in the xy plane. Both the bristle 31 and 32 are preferably heat transfer pins made of a heat transfer body. FIG.3 (c) shows the perspective view of the set part shown to Fig.3 (a).

In a preferred embodiment, the set portion 30 has a shape that is convexly curved in the z-axis direction on the xz plane. The bristle 31 and 32 preferably extend so as to rise perpendicular to the z-axis direction. In another preferred embodiment, it is preferable that the

bristles

31 and 32 are arranged so as to rise perpendicularly to the tangential direction on the curved surface of the cross section of the set portion 50 that is convexly curved in the xz plane. The center of the cross-sectional area of the base portion of the

bristle

31, 32 on the surface of the curved set portion is preferably disposed on the spiral tracks 222, 223.

In the hairbrush according to the second embodiment, the set unit 30 has a bristle 32 having a narrower width (shorter axis) than the bristle 31, and the bristle 32 is also preferably provided along a part of the spiral. In a preferred embodiment, the set unit 30 preferably includes two or more types of bristle having different cross-sectional areas. In a preferred embodiment, the cross-sectional shape of the bristle 32 in the xy plane is preferably circular. In a preferred embodiment, each center in the xy plane of the bristle 32 (see FIGS. 3B and ii) is provided along a part of the spiral (see FIG. 3A).

As shown in FIGS. 3A and 3C, the bristle 32 is preferably disposed along the y-axis direction at the short-side end portion of the set portion 30. In such a configuration, the gap in the y-axis direction between the bristle can be narrowed at the short-side end portion of the set portion 30. Since the hair has a property of trying to pass through the gap, such a configuration can provide a portion where the hair easily enters between the bristle.

With such a configuration, it is possible to improve the set power by the spiral arrangement, improve the ease of hair intrusion, and improve the balance of the effects.

[Embodiment 3]
Another embodiment of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

FIG. 4 schematically shows the arrangement of the bristle according to the third embodiment. FIG. 4A shows a front view of a set unit in which bristles 41 and 32 are arranged on two

spiral tracks

222 and 223 on the set unit 40 (xy plane). FIG. 4B shows a cross-sectional shape of the bristle 41 in the xy plane. As in the second embodiment, the

bristle

41, 32 is preferably a heat transfer pin made of a heat transfer body.

In a preferred embodiment, the set portion 40 has a shape that is convexly curved in the z-axis direction in the xz plane. The bristle 41, 32, 42 preferably extends so as to rise perpendicular to the z-axis direction. In another preferred embodiment, the

bristle

41, 32, 42 is arranged so as to rise perpendicularly to the tangential direction on the curved surface of the cross section of the set portion 40 that is convexly curved in the xz plane. preferable. The center of the cross-sectional area of the base portion of the

bristle

41, 32, 42 on the surface of the curved set portion is preferably disposed on the spiral tracks 222, 223.

It is preferable that the minor axis in the cross section of the bristle 41 according to the third embodiment is arranged so as to have an angle rotated in one direction with respect to the longitudinal axis (y-axis) of the set unit 40. Specifically, the minor axis in the cross-section of the bristle 41 shown in FIG. 4B is not parallel to the longitudinal axis (y-axis) of the set unit 40 and is inclined at a predetermined angle with respect to the y-axis. It is preferable. In other words, it is preferable that the minor axis in the cross section of the bristle 41 is arranged to rotate at a predetermined angle in one direction with respect to the y axis. In a more preferred embodiment, as shown in FIG. 4A, it can be confirmed that the bristle 41 is arranged so that the long axis in the cross section of the bristle 41 is along the track 223. In another preferred embodiment, the bristle 41 can be arranged so that the long axis in the cross section of the bristle 41 is along the track 222.

[Embodiment 4]
FIG. 5 schematically shows the arrangement of the bristle according to the fourth embodiment. FIG. 5A is a perspective view of the set unit 50 in which the bristle 31 and 42 and the hole 51 are arranged on the spiral tracks 222 and 223 on the set unit 50 (xy plane). Further, FIG. 5A shows a perspective view of the base portion 53 to which the bristle 52 is connected together with a perspective view of the set portion 50. FIG. 5B shows a perspective view in which a bristle 52 connected to the base portion 53 is mounted from the back surface of the set portion 50 through the hole 51. It is a perspective view which shows the state by which the bristle 52 is arrange | positioned at the hole 51 so that it may stand | start up perpendicular | vertical (z-axis direction) with respect to xy plane. The bristle 52 is preferably made of a resin having a lower thermal conductivity than the heat transfer body.

In a preferred embodiment, the set portion 50 has a shape that is convexly curved in the z-axis direction on the xz plane. The bristle 31, 42, 52 preferably extends so as to rise perpendicular to the z-axis direction. In another preferred embodiment, the

bristle

31, 42, 52 is arranged so as to rise perpendicularly to the tangential direction on the curved surface of the cross section of the set portion 50 that is convexly curved in the xz plane. preferable. The center of the cross-sectional area of the base portion of the

bristle

31, 42, 52 on the surface of the curved set portion is preferably disposed on the spiral track.

As for the bristle 52 in the fourth embodiment, it is preferable that the cross-sectional shape in the xy plane is circular like the bristle 42.

Resin pin (Bristle 52) can prevent hair that has entered the gap from slipping out. For example, by making the tip of the bristle 52 spherical, it becomes a catching portion, and the effect is further enhanced. By making the resin pins (the bristle 52) a part of the spiral arrangement, the effect can be further enhanced. Moreover, if it is resin, it will be easy to process and it is possible to adjust the grip force by utilizing the surface roughness. There may be one resin pin (brissle 52), or each may be a hair bundle.

[Embodiment 5]
Another embodiment of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

FIG. 6 is a schematic diagram of a side view (xz plane) of the setting unit 40 of the fifth embodiment. It is preferable that the height of the bristle 41 (heat transfer pin) near the center of the set unit 40 in the short direction (x-axis direction) of the set unit 40 is higher than the height of the bristle 41 near the end. In other words, it is preferable that the height of the bristle 41 at both ends in the short direction of the set portion 40 is lower than the height of the bristle 41 at the center portion. Here, the height of the bristle means not the length of the pin itself but the value in the z-axis direction. When the hair enters between the adjacent bristle 41, the high bristle 41 at the center portion comes into contact with the hair first, so that the hair easily enters between the adjacent bristle 41.

The set unit 40 is not limited to a flat surface, and may be convex in the xz plane as shown in FIG. In another preferred embodiment, it may be concave in the xz plane.

[Embodiment 6]
Another embodiment of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

As shown in FIG. 4A, it is preferable that the bristle 42 is disposed along the y-axis direction at the short-side end portion of the set portion 40. In such a configuration, the gap in the y-axis direction between the bristle can be narrowed at the short-side end portion of the set portion 40. Since the hair has a property of trying to pass through the gap, such a configuration can provide a portion where the hair easily enters between the bristle.

The bristle 42 is preferably a resin pin. As in the fourth embodiment, the bristle 42 (resin pin) is preferably made of a resin having a lower thermal conductivity than the heat transfer pin.

In a further preferred embodiment, the bristle 42 is preferably higher than the

bristle

41, 32. The heat transfer pin (the bristle 41) is assumed to have excessive heat resistance, and when the heat transfer pin directly contacts the scalp, the user may feel hot. As shown in FIG. 9, if the resin pin (Bristle 22) protrudes from the heat transfer pin (Bristle 41), the resin pin (Bristle 42) contacts the scalp before the heat transfer pin (Bristle 41). For this reason, it can prevent that a heat-transfer pin (Bristle 41) contacts a scalp directly.

The material of the resin pin is preferably good in moldability and heat resistance. In a preferred embodiment, it is preferable that only the spherical portion of the bristle 42 is protruded from the height of the heat transfer pin (the bristle 41). In such an embodiment, it is difficult for the hair to come off and it is possible to prevent the heat transfer part from touching the user.

[Embodiment 7]
Another embodiment of the present invention will be described below. For convenience of explanation, members having the same functions as those described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

A specific example in which the set part made of a heat transfer body is mounted on the hairbrush body will be described below.

7 to 10 are schematic external views of an example of a hair brush (also referred to as a hair brush iron) with a built-in heater according to the present invention.

FIG. 7 shows a front view 700 of the hairbrush (xy plane). FIG. 8 shows a rear view 800 of the hairbrush. Fig.9 (a) shows the side view 900 of a hairbrush (yz plane). FIG. 9B shows a perspective view 910 of the hairbrush. FIG. 10 shows a six-sided view of a hairbrush according to another preferred embodiment. FIGS. 10A to 10F are a front view, a rear view, a plan view, a bottom view, a left side view, and a right side view, respectively.

The hairbrush according to the seventh embodiment includes a grip part 72 as a part that a user grips with a hand, a head part 70 connected to the first end of the grip part 72, and heat transfer disposed in the head part 70. With body. In a preferred embodiment, the grip portion 72 and the head portion 70 have a substantially linear appearance when used. In another preferred embodiment, the grip 72 and the head 70 may have an appearance of being connected at a predetermined angle. The head portion 70 has a set portion 40 made of a heat transfer body that transfers heat to the hair, and the set portion 40 has a plurality of rising pin shapes (

brissles

41, 32, 42). In a preferred embodiment, the head unit 70 includes a current plate (guide rib) 71. As shown in FIGS. 8 and 9, the plurality of rectifying plates 71 are preferably arranged over the surface other than the set portion 40 of the elliptical columnar head portion 70. It is preferable that the flow direction of the hair can be adjusted by the current plate 71. It is preferable that a heater (not shown) is mounted on the inside of the heat transfer body. The material of the heat transfer body only needs to have good thermal conductivity, and is preferably a metal such as stainless steel or aluminum alloy. Other metals can also constitute the heat transfer body and are not limited to the above metal materials.

A power cord 91 is connected to the other end facing the first end of the grip 72. There is preferably a heater (not shown) inside the head unit 70. In another embodiment, a configuration in which a heater is included in the grip portion 72 may be employed. In a preferred embodiment, the heat transfer body is preferably provided with a heater inside. The material of the heat transfer body only needs to have good thermal conductivity. The shape of the brush surface is preferably a plane in the xy plane. In other preferred embodiments, it may be convex or concave in the xz plane.

In a preferred embodiment, it is preferable that the grip portion 72 includes the switch 110 and the operation unit 120. After inserting a plug (not shown) provided at the tip of the power cord 91 into the outlet, the switch 110 provided on the grip 72 can be pushed. The operation unit 120 can set the desired temperature. It is preferable that the operation unit is configured so that the temperature of the heater (not shown) can be selected from 100, 120, 140, 160, 180, and 200 ° C. as an example. Without being limited to these temperatures, in another preferred embodiment, it is preferable that other combinations of set temperatures can be selected.

After the heater has reached the desired temperature, the hand portion 72 can be held by hand and the head portion 70 can be applied to the hair. The heat transfer pin and the hair come into contact with each other, and heat is transferred to the hair. The hair set is completed when the hair cools naturally.

When the hair brush iron of the present invention is used in a state where the hair is wet, it can be set while drying the hair with a heated heat transfer pin. After the operation is completed, when the switch is turned off and the power is turned off, the heater stops generating heat, and if left untreated, the head unit 70 is radiated to room temperature.

[Modification]
The structure in which animal hair brushes that are considered to be gentle to hair are appropriately added, or resin pins are added or thinned out, can be appropriately changed in design, and does not affect the scope of the present invention. Moreover, the structure etc. which give the function of a dryer by adding an air blower are the ranges in which a design change is possible suitably, and do not affect the range of this invention.

[Summary]
The hairbrush which concerns on aspect 1 of this invention is a hairbrush provided with the head part (70), Comprising: The set part (30,40,50) which consists of a heat-transfer body which transfers heat to hair is said head part (70). The set part (30, 40, 50) is arranged on the first surface of the plurality of bridges (20, 21, 22, 31, 32, 32) extending from the surface of the set part (30, 40, 50). 41, 42, 52), and the cross-section perpendicular to the height direction of the bristle (20, 21, 22, 31, 32, 41, 42, 52) has an elliptical shape having a major axis and a minor axis. The short axis is disposed so as to have an angle rotated in one direction with respect to the longitudinal axis of the set portion (30, 40, 50), and the center of the cross-section of the bristle on the first surface is , Geometrically in the first surface Is location, the geometrical arrangement, a structure is disposed along a portion of the spiral in the first surface.

According to the above configuration, the hair can be bent using an area having a large elliptical curvature.

The hair brush according to aspect 2 of the present invention may have a configuration in which the spiral is a Fibonacci spiral in the aspect 1 described above.

According to the above configuration, the tensile force of the hair can be increased more effectively.

In the hair brush according to aspect 3 of the present invention, in the above aspect 1 or 2, a part of the spiral on the first surface is a plurality of tracks (202, 212, 222, 223), and the bristle may be arranged such that the major axis of the elliptical shape is along the track.

A hairbrush according to aspect 4 of the present invention is the hairbrush according to any one of aspects 1 to 3, wherein the geometrical arrangement is an arrangement along a part of an intersection of two spirals on the first surface. It is good also as a structure.

According to the above configuration, the bristle can efficiently catch hair against hair entering from any direction, and the setting power of the hair can be increased.

The hairbrush according to aspect 5 of the present invention is the hairbrush according to any one of aspects 1 to 4, wherein the bristle disposed at both ends in the short direction of the set part (30, 40, 50) has a short height. It is good also as a structure lower than the height of the bristle arrange | positioned in the center part of a hand direction.

According to the above configuration, when the hair enters between the bristle, the bristle disposed in the center first comes into contact with the hair, so that the effect of easily entering the hair between the bristle can be enhanced.

A hair brush according to aspect 6 of the present invention is the hair brush according to any one of the aspects 1 to 5, wherein at least two of the plurality of bristles (20, 21, 22, 31, 32, 41, 42, 52) are the transmission. A first bristle (heat transfer pins 31, 32, 41, 42) made of a heat body, and at least one of the plurality of bristles is made of a resin having a lower thermal conductivity than the heat transfer body. It is good also as a structure which is this bristle (resin pin 52).

According to the above configuration, it is possible to prevent the hair that has entered the gap between the bristle from coming out.

In the hair brush according to aspect 7 of the present invention, the height of the first bristle (heat transfer pins 31, 32, 41, 42) is the height of the second bristle (resin pin 52). It is good also as a structure lower than this.

According to the above configuration, the first bristle made of the heat transfer body can be prevented from directly touching the scalp.

The hair brush according to aspect 8 of the present invention is the above-described aspect 6 or 7, wherein the first cross-sectional area is adjacent to the first bristle (heat transfer pins 31 and 41) having the first cross-sectional area. A first bristle (heat transfer pins 32, 42) having a different second cross-sectional area is disposed, and the first cross-sectional area is larger than the second cross-sectional area and the second cross-sectional area has the second cross-sectional area. One bristle (heat transfer pins 32, 42) may be arranged along the short-side end of the set portion (30, 40, 50).

According to the above configuration, it is possible to improve the set force by the spiral arrangement, improve the ease of hair penetration, and improve the balance of the effects.

The hairbrush according to aspect 9 of the present invention is the elliptical body having a height in the major axis direction in any one of the above aspects 1 to 8, and the set part (30, 40, 50) may be arranged on the surface of the elliptic cylinder.

According to the above configuration, heat can be efficiently transmitted to the hair, and the setting power can be increased.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

10, 11, 20, 21, 22, 31, 32, 41, 42, 52

Bristle

30, 40, 50 Set part 53 Base part 70 Head part 71 Current plate 72 Grip part 91

Power cord

101, 111, 201, 211

Hair Traveling direction

202, 212, 222, 223 tracks

Claims

A hairbrush with a head,
A set portion is disposed on the first surface of the head portion;
The set part is composed of a heat transfer body that transfers heat to the hair,
The set part includes a plurality of bristle extending from the surface of the set part,
The cross-section of the bristle is an elliptical shape having a major axis and a minor axis,
The short axis is disposed so as to have an angle rotated in one direction with respect to the longitudinal axis of the set part,
The center of the cross-section of the bristle on the first surface is geometrically arranged on the first surface;
The hairbrush characterized in that the geometrical arrangement is an arrangement along a part of a spiral in the first surface.
The hair brush according to claim 1, wherein the spiral is a Fibonacci spiral.
A portion of the spiral on the first surface generates a plurality of tracks on the surface of the set portion;
The hairbrush according to claim 1 or 2, wherein the bristle is arranged so that the major axis of the elliptical shape is along the track.
The geometrical arrangement is an arrangement along a part of the intersection of two spirals on the first surface;
The hairbrush according to any one of claims 1 to 3, wherein the hairbrush is provided.
The height of the bristle disposed at both ends in the short direction of the set portion is lower than the height of the bristle disposed at the center in the short direction. A hairbrush according to item 1.
At least two of the plurality of bristle are first bristle made of the heat transfer body,
The hairbrush according to any one of claims 1 to 5, wherein at least one of the plurality of bristle is a second bristle made of a resin having a lower thermal conductivity than the heat transfer body. .
The hairbrush according to claim 6, wherein the height of the first bristle is lower than the height of the second bristle.
A first bristle having a second cross-sectional area different from the first cross-sectional area is disposed adjacent to the first bristle having a first cross-sectional area,
The first cross-sectional area is larger than the second cross-sectional area;
The hairbrush according to claim 6 or 7, wherein the first bristle having the second cross-sectional area is disposed along an end portion in a short direction of the set portion.
The head portion is an elliptic cylinder having a height in the major axis direction;
The hairbrush according to any one of claims 1 to 8, wherein the set portion is disposed on a surface of the elliptical cylinder.