JP7271526B2 - hairbrush - Google Patents

Description

The present invention relates to hairbrushes, and in particular to electric hairbrushes for setting hair.

In conventional hair styling, various methods such as curling irons, hair brushes, combined use of brushes and hair dryers have been used. For example, with a hair iron, the hair is first combed and then set by pinching the hair with the iron.

Utility Model No. 3206808 JP 2013-240434 Japanese Patent Application Laid-Open No. 2007-229316

However, in the conventional technology as described above, for example, although the hairbrush can set the hair at once, there is a problem that heat is difficult to be transmitted to the hair if the hair cannot be caught well. On the other hand, if the number of pins of the brush is increased too much, there is a problem that the hair becomes entangled or becomes difficult to come off, thereby increasing the damage to the hair.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to efficiently catch hair on bristles and improve hair-setting power.

In order to solve the above problems, a hairbrush according to the present invention is a hairbrush having a head portion, wherein a setting portion is arranged on a first surface of the head portion, and the setting portion applies heat to the hair. The set portion includes a plurality of bristles extending from the surface of the set portion, the cross section of the bristles being an elliptical shape having a major axis and a minor axis, and the minor axis are arranged at 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 bristles at the first surface is geometrically at the first surface arranged, said geometrical arrangement being an arrangement along a portion of a spiral on said first surface, said spiral being a Fibonacci spiral .
Further, in order to solve the above problems, a hairbrush according to the present invention includes a head portion, a setting portion is arranged on a first surface of the head portion, and the setting portion is attached to the hair. The set portion comprises a heat transfer body that conducts heat, the set portion includes a plurality of bristles extending from the surface of the set portion, the cross section of the bristles being elliptical having a major axis and a minor axis, and the minor axis are arranged at 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 bristles at the first surface is geometrically at the first surface and wherein the geometrical arrangement is along a portion of a spiral on the first surface, the portion of the spiral on the first surface producing a plurality of tracks on the surface of the set portion. The bristles are arranged such that the long axis of the elliptical shape is along the track.

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

According to one aspect of the present invention, the hair can be efficiently caught by the bristles, and the hair setting power can be enhanced.

1 is a schematic diagram showing an arrangement of bristles of a prior art hairbrush; FIG. 1 is a schematic diagram showing the geometrical arrangement of bristles of the hairbrush according to Embodiment 1; FIG. 4 is a schematic diagram schematically showing the arrangement of bristles of the hairbrush according to Embodiment 2. FIG. FIG. 10 is a schematic diagram schematically showing the arrangement of bristles of the hairbrush according to Embodiment 3; FIG. 11 is a schematic perspective view of a setting section according to Embodiment 4; FIG. 11 is a schematic side view of a setting section according to Embodiment 5; FIG. 11 is a front view of a hairbrush according to Embodiment 6; FIG. 12 is a rear view of the hairbrush according to Embodiment 6; (a) is a side view of a hairbrush according to Embodiment 6, and (b) is a perspective view of the hairbrush according to Embodiment 6. FIG. 6A and 6B are six views of a hairbrush according to Embodiment 6. FIG.

A schematic diagram of a conventional hairbrush bristle arrangement 100, 110 is shown in FIG. Although FIG. 1 does not show the appearance of the hairbrush, it schematically shows only the arrangement of the bristles as seen from the direction facing the brush surface (xy plane) (the z-axis direction perpendicular to the xy plane). As shown in FIG. 1A, a typical hairbrush has bristles 10 arranged in a grid. In this structure, hair slips through in a certain direction 101 on the xy plane. In another prior art, as shown in FIG. 1(b), bristles 11 are 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. Although this device is for straightening, if such an arrangement structure is used, hair slips through in a certain direction 111 on the xy plane. Therefore, it is necessary to increase the number of bristles or set the size of each bristle larger. In Patent Document 1, there are almost no gaps between the bristles (Fig. 3(a)), and it is conceivable that the hair will be damaged by strong friction.

Moreover, Patent Document 2 proposes a bristle that matches the curvature of the human head, and it is conceivable to design a brush following this shape. However, although it seems to fit the head well, for example, in areas where the hair is long and far from the head, the feeling of use is rather poor. Patent Literature 3 proposes a dryer that uses animal hair to increase grip, but it does not allow heat to be transferred evenly and efficiently.

There is a demand for a setting hairbrush capable of increasing the gripping force of the hair and efficiently transferring heat to the hair in a short period of time.

[Embodiment 1]
An embodiment of the present invention will be described in detail below.

A hairbrush according to the present invention has a head portion for combing hair, and the head portion has a setting portion for setting hair. In a preferred embodiment, the set portion is arranged on one side of the head portion. The setting portion is composed of a heat conductor that transfers heat to the hair, and has a plurality of pin shapes (bristles) that rise perpendicularly (z-axis direction) to the surface (xy plane) (brush surface) of the setting portion.

FIG. 2 is a schematic diagram showing the geometrical arrangement of the bristles of the hairbrush according to the invention. Although FIGS. 2(a) to 2(c) do not show the appearance of the hairbrush, the geometrical arrangement of the bristles 20, 21, 22 seen from the direction facing the brush surface (the z-axis direction perpendicular to the xy plane). is shown schematically.

In a preferred embodiment of the present invention, the centers of each of the pin-shaped bristles 20, 21, 22 in the xy plane (see Figures 3(b)(i)) are arranged along a constant geometric shape. A preferred geometric shape is a two dimensional curve, more preferably a spiral. As used herein, a spiral refers to a spiral two-dimensional curve that moves away from the center as it turns. A preferred embodiment of the present invention is characterized in that bristles are provided along part of the spiral in the xy plane.

Here, "a portion of the spiral" means a portion of the spiral included in the area forming the set portion in the xy plane that is conceptually spread. It is preferable to use a spiral formed with a pitch such that a plurality of spiral tracks are generated on the xy plane coordinates constituting the set portion. For example, in FIG. 2A, it can be confirmed that at least 11 spiral tracks 202 are generated on the xy plane coordinates forming the set portion. In FIG. 2B, it can be confirmed that at least 11 spiral tracks 212 are generated on the xy plane coordinates forming the set portion. In FIG. 2C, it can be confirmed that at least 12 spiral tracks 222 and at least 16 spiral tracks 223 are generated on the xy plane coordinates forming the set portion. The manner in which the bristles are arranged along a part of the spiral on the xy plane is also referred to as a "spiral arrangement" or "spiral arrangement". The spiral aspect is not limited to algebraic spirals such as Archimedean spirals, but logarithmic spirals and the like can be employed. In preferred embodiments, a Fibonacci spiral can be employed. Various parameters such as the initial radius and pitch of the spiral can be set arbitrarily.

A preferred embodiment employs an Archimedean spiral (algebraic spiral) that can be written as r=aθ in polar coordinates. For example, in the track 223 of FIG. 2(c), 16 tracks with t of 20 to 35 are generated when the parameter a is 0.017 and θ=t×360. In the track 222 of FIG. 2(c), 12 tracks with t=36 to 47 are generated when the parameter a is 0.02 and θ=−t×360.

In the configuration according to the present invention in which the bristles 20, 21, 22 are spirally arranged in the xy plane, the metal pins (bristles) 20, 21, 22 are evenly arranged. As a result, the metal pins (bristles) 20, 21, 22 reliably come into contact with the hair that is about to slip through, regardless of the location or direction 201, 211 where the hair comes in (Figs. 2(a) and 2(b)). reference). As a result, the hair is caught by the metal pins (bristles) 20, 21, 22, and the setting power of the hair can be enhanced.

As shown in FIGS. 2(a) and 2(b), the direction of the spiral may be the direction of the track 202 or the direction of the track 212. FIG. It is also preferred to place the bristles 22 at the intersections of the combined spiral tracks 222, 223 in two directions, as shown in FIG. 2(c). Since the hairbrush is used for the entire hair and is assumed to be used by both right-handed and left-handed users, it is not possible to specify the direction in which the hair travels depending on usage conditions. With the configuration shown in FIG. 2(c), hair coming in from any direction is caught by the bristles 22, and the setting power of the hair can be improved. A plurality of pins may be arranged along a first track in one spiral and another plurality of pins may be arranged along a second track in the spiral (the second track being adjacent to the first track).

In another preferred embodiment, the hairbrush is composed of a handle and a head, and the head may be cylindrical with a height in the longitudinal direction of the hairbrush. In the case of such an elliptical cylinder-shaped head portion, the set portion is preferably provided so as to be arranged on the surface of the elliptical cylinder.

As shown in FIG. 3, the cross-sectional shape of the bristles in the xy plane is preferably elliptical (see FIGS. 3(b) and 3(i)). In FIG. 3(b)(i), the axis line parallel to the x-axis passing through the center is the long axis, and the axis line parallel to the y-axis passing through the center is the short axis. When the long axis and the short axis are equal (see FIG. 3(b)(ii)), the cross-sectional shape of the bristles is circular. As used herein, a circular shape is one aspect of an elliptical shape.

When brushing with a hairbrush, the hair tries to pass through the gaps as much as possible. For example, in Japanese Patent Laid-Open No. 2002-110001, most of the hair may slip through when the hairbrush moves in a certain direction (opposite to 111). In such a situation, the bristles 11 of the hairbrush cannot catch the hair and the heat cannot be transferred to the hair through the bristles 11, so the hair cannot be styled as desired. In Patent Document 1, in order to prevent hair from slipping through, measures are taken such as setting the thickness of the heat transfer pins thicker or increasing the number of heat transfer pins to increase the density of the bristles 11 . there is However, unnecessarily increasing the density of the metal bristles narrows the gap between the bristles in the y-axis direction. As a result, the friction with the hair becomes stronger, damaging the hair and making it difficult for the hair to enter between the pins.

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

[Embodiment 2]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 3 schematically shows the arrangement of bristles according to the second embodiment. FIG. 3(a) shows a front view of the setting section in which the bristles 31, 32 are arranged on the two spiral tracks 222, 223 on the setting section 30 (xy plane). 3(b)(i) shows the cross-sectional shape of the bristles 31 on the xy plane, and FIG. 3(b)(ii) shows the cross-sectional shape of the bristles 32 on the xy plane. Both the bristles 31 and 32 are preferably heat transfer pins made of heat transfer material. FIG.3(c) shows the perspective view of the setting part shown to Fig.3 (a).

In a preferred embodiment, the setting portion 30 has a shape that is convexly curved in the z-axis direction on the xz plane. The bristles 31, 32 preferably extend so as to stand vertically in the z-axis direction. In another preferred embodiment, the bristles 31 and 32 are preferably arranged so as to stand perpendicularly to the tangential direction on the curved surface in the cross section of the set portion 50 which is convexly curved in the xz plane. Preferably, the centers of the cross-sectional areas of the roots of the bristles 31,32 on the surface of the curved set are located on the tracks 222,223 of the spiral.

In the hairbrush according to Embodiment 2, the setting portion 30 has bristles 32 narrower in width (shorter in length) than the bristles 31, and the bristles 32 are also preferably provided along a portion of the spiral. In a preferred embodiment, the setting portion 30 preferably comprises two or more types of bristles with different cross-sectional areas. In a preferred embodiment, the bristles 32 preferably have a circular cross-sectional shape in the xy plane. A preferred embodiment is characterized in that each center in the xy plane of the bristles 32 (see FIG. 3(b)(ii)) is provided along a portion of the spiral (see FIG. 3(a)).

As shown in FIGS. 3(a) and 3(c), the bristles 32 are preferably arranged along the y-axis direction at the ends of the set portion 30 in the transverse direction. With such a configuration, it is possible to narrow the distance between the bristles in the y-axis direction at the ends of the set portion 30 in the transverse direction. Since hair tends to pass through the gaps, such a configuration can provide areas where hair tends to enter between the bristles.

With such a configuration, it is possible to improve the setting force by the spiral arrangement, improve the ease of penetration of hair, and improve the balance of effects.

[Embodiment 3]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

4 schematically shows the arrangement of bristles according to Embodiment 3. FIG. FIG. 4(a) shows a front view of the setting section in which the bristles 41, 32 are arranged on the two spiral tracks 222, 223 on the setting section 40 (xy plane). FIG. 4B shows the cross-sectional shape of the bristles 41 on the xy plane. As in the second embodiment, the bristles 41 and 32 are both preferably heat transfer pins made of heat transfer material.

In a preferred embodiment, the set portion 40 has a shape that is convexly curved in the z-axis direction on the xz plane. The bristles 41, 32, 42 preferably extend so as to stand vertically in the z-axis direction. In another preferred embodiment, the bristles 41, 32, 42 are arranged so as to stand perpendicularly to the tangential direction of the curved surface in the section of the set portion 40 which is convexly curved in the xz plane. preferable. Preferably, the centers of the cross-sectional areas of the roots of the bristles 41, 32, 42 on the surface of the curved set are located on the tracks 222, 223 of the spiral.

The short axis of the cross section of the bristles 41 according to the third embodiment is preferably arranged at an angle rotated in one direction with respect to the longitudinal axis (y-axis) of the set portion 40 . Specifically, the short axis of the cross section of the bristles 41 shown in FIG. 4B is not parallel to the longitudinal axis (y-axis) of the set portion 40, but is inclined at a predetermined angle with respect to the y-axis. It is preferable to be In other words, the short axis of the cross section of the bristles 41 is preferably arranged to be rotated by a predetermined angle in one direction with respect to the y-axis. In a more preferred embodiment, it can be seen that the bristles 41 are arranged such that the longitudinal axis of the cross section of the bristles 41 is along the track 223, as shown in FIG. 4(a). In another preferred embodiment, the bristles 41 can be arranged such that the longitudinal axis of the cross-section of the bristles 41 is along the track 222 .

[Embodiment 4]
FIG. 5 schematically shows an arrangement of bristles according to Embodiment 4. FIG. FIG. 5( a ) shows a perspective view of the set portion 50 with the bristles 31 , 42 and the holes 51 arranged on spiral tracks 222 , 223 on the set portion 50 (xy plane). Further, FIG. 5(a) shows a perspective view of the base portion 53 to which the bristles 52 are connected together with the perspective view of the set portion 50. FIG. FIG. 5B shows a perspective view in which bristles 52 connected to the base portion 53 are attached from the back surface of the setting portion 50 through the holes 51 . 4 is a perspective view showing a state in which bristles 52 are arranged in holes 51 so as to stand upright (z-axis direction) with respect to the xy plane. FIG. The bristles 52 are preferably made of resin having a lower thermal conductivity than the heat conductor.

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 bristles 31, 42, 52 preferably extend so as to stand vertically in the z-axis direction. In another preferred embodiment, the bristles 31, 42, 52 are arranged so as to stand perpendicularly to the tangential direction of the curved surface in the section of the set portion 50 which is convexly curved in the xz plane. preferable. The centers of the cross-sectional areas of the roots of the bristles 31, 42, 52 on the curved set surface are preferably located on the spiral track.

As with the bristles 42, the bristles 52 in Embodiment 4 preferably have a circular cross-sectional shape in the xy plane.

The resin pins (bristles 52) can prevent the hair that has entered the gaps from falling out. For example, by forming the tip of the bristles 52 into a spherical shape, the bristles 52 serve as hooks, which further enhances the effect. By making the resin pins (bristles 52) part of the spiral arrangement, the effect can be further enhanced. Also, if it is a resin, it is easy to process, and it is possible to adjust the gripping force by utilizing the surface roughness. The number of resin pins (bristles 52) may be one, or each may be a bundle of hair.

[Embodiment 5]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 6 is a schematic side view (xz plane) of the setting section 40 of the fifth embodiment. The height of the bristles 41 (heat transfer pins) near the central portion of the set portion 40 in the lateral direction (x-axis direction) of the set portion 40 is preferably higher than the height of the bristles 41 near the ends. In other words, the height of the bristles 41 at both ends of the set portion 40 in the transverse direction is preferably lower than the height of the bristles 41 in the central portion. Here, the height of the bristles refers to the value in the z-axis direction, not the length of the pin itself. When hair enters between the adjacent bristles 41 , the bristles 41 with high central portions come into contact with the hair first, making it easier for the hair to enter between the adjacent bristles 41 .

The set portion 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]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

As shown in FIG. 4(a), the bristles 42 are preferably arranged along the y-axis direction at the ends of the set portion 40 in the transverse direction. With such a configuration, it is possible to narrow the distance between the bristles in the y-axis direction at the ends of the set portion 40 in the transverse direction. Since hair tends to pass through the gaps, such a configuration can provide areas where hair tends to enter between the bristles.

With such a configuration, it is possible to improve the setting force by the spiral arrangement, improve the ease of penetration of hair, and improve the balance of effects.

Also, the bristles 42 are preferably resin pins. As in the fourth embodiment described above, the bristles 42 (resin pins) are preferably made of resin having a lower thermal conductivity than the heat transfer pins.

In a more preferred embodiment, the bristles 42 are preferably taller than the bristles 41,32. It is assumed that the heat transfer pins (bristles 41) may become excessively heat resistant, and the user may feel hot when the heat transfer pins directly contact the scalp. As shown in FIG. 9, if the resin pins (bristles 22) protrude from the heat transfer pins (bristles 41), the resin pins (bristles 42) come into contact with the scalp before the heat transfer pins (bristles 41). Therefore, the direct heat transfer pins (bristles 41) can be prevented from coming into contact with the scalp.

The material of the resin pin preferably has good moldability and heat resistance. In a preferred embodiment, it is preferred that only the spherical portion of the bristles 42 protrude above the height of the heat transfer pins (bristles 41). In such a mode, it is possible to prevent the hair from falling out and to prevent the heat transfer section from coming into contact with the user.

[Embodiment 7]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

A specific example in which a set portion made of a heat conductor is attached to a hairbrush body will be described below.

7 to 10 show schematic external views of an example of a hairbrush (also referred to as a hairbrush 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 a hairbrush. FIG. 9(a) shows a side view 900 of the hairbrush (yz plane). FIG. 9(b) shows a perspective view 910 of a hairbrush. FIG. 10 shows six views of a hairbrush according to another preferred embodiment. 10(a) to (f) respectively show a front view, a rear view, a plan view, a bottom view, a left side view, and a right side view.

The hairbrush according to the seventh embodiment includes a grip portion 72 as a portion to be gripped by a user's hand, a head portion 70 connected to a first end of the grip portion 72, and a heat transfer device disposed in the head portion 70. Prepare the body. In a preferred embodiment, the grip portion 72 and head portion 70 present a generally straight appearance in use. In another preferred embodiment, the grip portion 72 and the head portion 70 may have the appearance of being connected at a predetermined angle. The head portion 70 has a setting portion 40 made of a heat conductor that transfers heat to the hair, and the setting portion 40 has a plurality of standing pin shapes (bristles 41, 32, 42). Further, in a preferred embodiment, the head portion 70 includes a current plate (guide rib) 71 . As shown in FIGS. 8 and 9, it is preferable that a plurality of rectifying plates 71 are arranged over a surface of the cylindrical head portion 70 other than the set portion 40 . It is preferable that the flow direction of the hair can be regulated by the rectifying plate 71 . Preferably, the heat transfer body is fitted with a heater (not shown) inside. The material of the heat conductor may be any material as long as it has good thermal conductivity, and is preferably a metal such as stainless steel or an aluminum alloy. Other metals can also constitute the heat transfer body, and the material is not limited to the above metal materials.

A power cord 91 is connected to the other end facing the first end of the grip portion 72 . A heater (not shown) is preferably located inside the head portion 70 . In another embodiment, the grip portion 72 may include a heater. In a preferred embodiment, the heat transfer body is preferably internally mounted with a heater. The material of the heat conductor may be any material as long as it has good thermal conductivity. The shape of the brush surface is preferably flat in the xy plane. Other preferred embodiments may be convex or concave in the xz plane.

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

After the heater has reached the desired temperature, the head portion 70 can be applied to the hair while holding the grip portion 72 with the hand. The heat transfer pin and the hair come into contact with each other, and heat is transferred to the hair. Hair setting is completed when the hair is naturally cooled.

When the hair brush iron of the present invention is used with the hair wet, it is possible to set the hair while drying it with a heated heat transfer pin. After the operation is completed, the switch is turned off to cut off the power supply, and the heat generation of the heater stops.

[Modification]
The configuration of appropriately adding an animal hair brush, which is said to be gentle on hair, or adding or thinning out resin pins, is within the range of design changes that can be made as appropriate, and does not affect the scope of the present invention. Also, the configuration of providing the function of a dryer by adding an air blower is within the scope of appropriate design changes and does not affect the scope of the present invention.

〔summary〕
A hairbrush according to aspect 1 of the present invention is a hairbrush having a head portion (70), wherein a setting portion (30, 40, 50) made of a heat conductor that conducts heat to the hair is provided with the head portion (70). and said set portion (30, 40, 50) comprises a plurality of bristles (20, 21, 22, 31, 32, 41, 42, 52), and the cross section perpendicular to the height direction of the bristles (20, 21, 22, 31, 32, 41, 42, 52) is an elliptical shape having a major axis and a minor axis. , the minor axis is arranged 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 bristles on the first surface is , geometrically arranged at said first surface, said geometrical arrangement being along a portion of a spiral at said first surface.

According to the above configuration, the hair can be bent using the elliptical region with a large curvature.

A hairbrush according to aspect 2 of the present invention may have a configuration in which the spiral in aspect 1 is a Fibonacci spiral.

According to the above configuration, it is possible to increase the pulling force of the hair more effectively.

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

According to the above configuration, it is possible to increase the pulling force of the hair more effectively.

The hairbrush according to aspect 4 of the present invention is the hairbrush according to any one of aspects 1 to 3 above, wherein the geometric arrangement is an arrangement along a part of the intersection of two spirals on the first surface. may be configured.

According to the above configuration, the bristles can efficiently catch hair entering from any direction, and the hair setting power can be enhanced.

A hairbrush according to aspect 5 of the present invention is the hairbrush according to any one of aspects 1 to 4, wherein the height of the bristles arranged at both ends in the width direction of the setting portion (30, 40, 50) is The height of the bristles may be lower than the height of the bristles arranged in the central portion in the hand direction.

According to the above configuration, when the hair enters between the bristles, the bristles arranged in the central portion first come into contact with the hair, thereby enhancing the effect of making it easier for the hair to enter between the bristles.

A hairbrush according to Aspect 6 of the present invention is the hairbrush according to any one of Aspects 1 to 5 above, wherein at least two of the plurality of bristles (20, 21, 22, 31, 32, 41, 42, 52) A first bristle (heat transfer pins 31, 32, 41, 42) made of a heat body, wherein at least one of the plurality of bristles is made of a resin having a lower thermal conductivity than that of the heat transfer body. bristles (resin pins 52).

According to the above configuration, it is possible to prevent the hair that has entered the gaps between the bristles from falling out.

In the hairbrush according to aspect 7 of the present invention, in aspect 6 above, the height of the first bristles (heat transfer pins 31, 32, 41, 42) is equal to the height of the second bristles (resin pin 52). It is good also as a structure lower than.

According to said structure, the 1st bristles which consist of a heat-transfer body can be prevented from touching a scalp directly.

In the hairbrush according to aspect 8 of the present invention, in the above aspect 6 or 7, adjacent to the first bristles (heat transfer pins 31, 41) having the first cross-sectional area, the first cross-sectional area is First bristles (heat transfer pins 32, 42) having different second cross-sectional areas are arranged, the first cross-sectional areas being greater than the second cross-sectional areas, and the second bristles having the second cross-sectional areas. A single bristle (heat transfer pins 32, 42) may be arranged along the lateral end of the set portion (30, 40, 50).

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

A hairbrush according to Aspect 9 of the present invention is a hairbrush according to any one of Aspects 1 to 8 above, wherein the head portion (70) is an elliptical cylinder having a height in the major axis direction, and the setting portions (30, 40, 50) may be arranged on the surface of the elliptical cylinder.

According to the above configuration, the heat can be efficiently transferred to the hair, and the setting power can be enhanced.

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

10, 11, 20, 21, 22, 31, 32, 41, 42, 52 bristles 30, 40, 50 set portion 53 base portion 70 head portion 71 current plate 72 grip portion 91 power cords 101, 111, 201, 211 hair Direction of travel 202, 212, 222, 223 Track

Claims (9)

A hairbrush comprising a head,
A set portion is arranged on the first surface of the head portion,
The setting part comprises a heat transfer body that transfers heat to the hair,
the set portion comprises a plurality of bristles extending from a surface of the set portion;
the bristles have an elliptical cross-section with a major axis and a minor axis;
the minor axis is arranged to have an angle rotated in one direction with respect to the longitudinal axis of the setting section;
centers of cross-sections of the bristles at the first surface are geometrically positioned at the first surface;
the geometric arrangement is along a portion of a spiral on the first surface;
A hairbrush , wherein the spiral is a Fibonacci spiral . a portion of the spiral on the first surface produces a plurality of tracks on the surface of the set portion;
The hairbrush according to claim 1 , wherein the bristles are arranged such that the major axis of the elliptical shape is along the track . A hairbrush comprising a head,
A set portion is arranged on the first surface of the head portion,
The setting part comprises a heat transfer body that transfers heat to the hair,
the set portion comprises a plurality of bristles extending from a surface of the set portion;
the bristles have an elliptical cross-section with a major axis and a minor axis;
the minor axis is arranged to have an angle rotated in one direction with respect to the longitudinal axis of the setting section;
centers of cross-sections of the bristles at the first surface are geometrically positioned at the first surface;
the geometric arrangement is along a portion of a spiral on the first surface;
a portion of the spiral on the first surface produces a plurality of tracks on the surface of the set portion;
The bristles are arranged such that the long axis of the elliptical shape is along the track.
A hairbrush characterized by: the geometric arrangement is along a portion of the intersection of two spirals on the first surface;
The hairbrush according to any one of claims 1 to 3, characterized in that: 5. The bristles according to any one of claims 1 to 4, wherein the height of the bristles arranged at both ends in the width direction of the set portion is lower than the height of the bristles arranged in the central portion in the width direction. A hairbrush according to item 1. At least two of the plurality of bristles are first bristles made of the heat transfer body,
6. The hairbrush according to any one of claims 1 to 5, wherein at least one of the plurality of bristles is a second bristle made of a resin having a lower thermal conductivity than the heat transfer body. . 7. A hairbrush according to claim 6, wherein the height of said first bristles is less than the height of said second bristles. a first bristle having a second cross-sectional area different than the first cross-sectional area is positioned adjacent to the first bristle having a first cross-sectional area;
The first cross-sectional area is greater than the second cross-sectional area,
8. The hairbrush according to claim 6 or 7, wherein the first bristles having the second cross-sectional area are arranged along the lateral end of the set portion. The head portion is an elliptical cylinder having a height in the longitudinal direction,
The hairbrush according to any one of claims 1 to 8, wherein the setting portion is arranged on the surface of the cylindroid.

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