Thinning shears and how to use them
The hairbrush with regions of varying curvature and intervals on comb teeth addresses the issue of uneven hair flow and volume adjustment, enabling precise hair thinning for improved styling.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-04-05
- Publication Date
- 2026-04-09
AI Technical Summary
Existing hairbrushes with comb blades fail to effectively adjust the direction of hair flow and volume due to disruption caused by uneven hair thinning, necessitating a more precise method to manage hair flow and volume.
A hairbrush with comb teeth featuring multiple regions of varying radii of curvature and intervals, allowing for differential hair cutting based on location, combined with a gripping portion for precise control.
Enables adjustment of hair flow direction and volume with enhanced precision by allowing for tailored hair thinning based on scalp density and hair location, facilitating smoother styling.
Smart Images

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Abstract
Description
Technical Field
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[0001] The present invention relates to a hairbrush having a comb blade with a plurality of comb teeth arranged thereon and a method of using the same.
Background Art
[0002] Conventionally, in grooming and beauty, it is known that by thinning, the amount of hair forming a hairstyle is reduced, the volume of the hair is adjusted, and movement and texture are added to the hairstyle. For such thinning, a hairbrush having a comb blade with a plurality of comb teeth arranged thereon is used.
[0003] For example, Patent Document 1 proposes a hair clipper including a rod blade and a comb blade, the comb blade being formed longer than the rod blade, and a comb tooth body being provided at the tip of the comb blade that protrudes from the tip of the rod blade and does not mesh with the rod blade.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] By the way, if the direction of the hair flow is disrupted, the hairstyle will not be in the form desired by the operator (e.g., beautician, etc.) or the subject. To adjust the direction of the hair flow, it is necessary to adjust the amount of hair to be thinned according to the position of the hair.
[0006] An object of the present invention is to enable adjustment of the direction of the hair flow and to enable more delicate adjustment of the volume of the hair.
Means for Solving the Problems
[0007] (1) A hairbrush comprising a comb blade with a plurality of comb teeth arranged thereon, Each of the multiple comb teeth has an arc-shaped blade formed at its tip. The comb blades are at least, The first region is composed of the comb teeth, which are formed in an arc shape with a first radius of curvature, Thinning shears characterized by including a second region composed of comb teeth formed with a second radius of curvature different from the first radius of curvature of the blade.
[0008] According to invention (1), the thinning scissors are equipped with comb blades having multiple comb teeth arranged in a row. Each of the comb teeth has an arc-shaped blade at its tip. The comb blade comprises at least a first region and a second region. The first region consists of comb teeth, the blades of which are formed in the shape of a circular arc with a first radius of curvature. The second region consists of comb teeth, the blades of which are formed with a second radius of curvature that is different from the first radius of curvature.
[0009] In invention (1), the amount of hair that can be cut by the comb teeth in the first region is different from the amount of hair that can be cut by the comb teeth in the second region. Therefore, when thinning hair, the stylist can adjust the amount of hair to be thinned depending on its location by cutting with the first area of the comb teeth where there is hair and cutting with the second area of the comb teeth where there is hair elsewhere. Therefore, it is possible to provide thinning scissors that allow for adjustment of the direction of hair flow and more delicate adjustment of hair volume.
[0010] (2) The first radius of curvature is smaller than the second radius of curvature, The comb blade has the comb teeth arranged on the tip side and a gripping portion on the base side that is held by the operator. The thinning shears according to (1), characterized in that the first region is located on the tip side of the second region.
[0011] According to invention (2), the first radius of curvature is smaller than the second radius of curvature. The comb blade has comb teeth arranged at the tip and a gripping portion at the base that is held by the operator. Furthermore, the first region is located closer to the tip than the second region.
[0012] Here, the hair is denser the closer it is to the scalp (hair root). Therefore, near the scalp, more hair is cut by a single comb tooth compared to the ends or middle sections of the hair. Also, hair crossing near the scalp has a greater influence on the direction of hair flow than hair crossing at the ends.
[0013] In invention (2), the first region, in which the radius of curvature of the arc-shaped blade is smaller, is located closer to the tip than the second region. In this way, by positioning the first region, which has a smaller radius of curvature of the arc-shaped blade, closer to the tip for easier access to the scalp, the amount of hair cut near the scalp can be reduced. Therefore, it becomes easier to adjust the direction of hair growth near the scalp, which has a greater influence on the direction of hair flow, and more precise adjustment of hair volume becomes possible.
[0014] (3) The first region and / or the second region have a plurality of comb teeth arranged at predetermined intervals, The thinning shears according to (1) or (2), characterized in that the first region and the second region are arranged at a specific interval different from the predetermined interval.
[0015] According to the invention of (3), the first region and the second region are arranged at a specific interval different from the predetermined interval between the multiple comb teeth in the first region and / or the second region. Therefore, it becomes easier for the practitioner to grasp the position of the first and second regions on the comb blade.
[0016] (4) The method of using the thinning shears described in (1), Hold the thinning scissors so that the tip protrudes from the little finger side. Pull the bundle of hair away from the scalp, A method of using a comb, characterized by cutting a bundle of hair at a position selected from the first region or the second region with the comb.
[0017] According to the invention of (4), the same operational effects as those of the invention of (1) are achieved.
Advantages of the Invention
[0018] According to the present invention, it is possible to adjust the direction of the hair flow and to adjust the volume of finer hair.
Brief Description of the Drawings
[0019] [Figure 1] It is a diagram for explaining a comb according to an embodiment of the present invention. [Figure 2] It is a diagram for explaining the teeth of a comb according to an embodiment of the present invention. Fig. 2(a) is an enlarged view of the blade of the teeth in the first region. Fig. 2(b) is an enlarged view of the blade of the teeth in the second region. Fig. 2(c) is an enlarged view of the blade of the teeth in the third region. [[ID=
[0022] The first body 10 is a comb blade with multiple comb teeth 11 arranged in a row. The first body 10 extends from the base end where the gripping portion 110 is formed towards the tip end, and is rotatably connected to the second body 20 by a connecting portion 5 in its intermediate portion. On the tip end side of the connecting portion 5, the first body 10 has a plurality of comb teeth 11 arranged thereon, each with an arc-shaped blade formed at its tip. Furthermore, the first body 10 has a gripping portion 110 formed at the base end by the connecting portion 5, which includes an annular portion through which the user of the thinning scissors 1 (e.g., a hairdresser) can insert their fingers, and a protruding portion that extends from the outer edge of the annular portion and into which the user can hook their fingers.
[0023] Furthermore, the first body 10 has multiple regions arranged from the tip side to the base side, each region having multiple comb teeth 11 with arc-shaped blades formed at their tips (in the example shown in Figure 1, the first region 10A, the second region 10B, and the third region 10C). In these multiple regions, the radii of curvature of the arc-shaped blades of the comb teeth 11 arranged in each region are different from each other. In this embodiment, the first body 10 has three regions: the first region 10A, the second region 10B, and the third region 10C. However, it is not limited to this, and may have only two regions (for example, any two of the first region 10A, the second region 10B, or the third region 10C), or it may have four or more regions.
[0024] Figure 2 illustrates the comb teeth of thinning shears according to an embodiment of the present invention. Figure 2(a) is an enlarged view of the blades of the comb teeth 11 in the first region 10A. Figure 2(b) is an enlarged view of the blades of the comb teeth 11 in the second region 10B. Figure 2(c) is an enlarged view of the blades of the comb teeth 11 in the third region 10C. Note that the dimensions shown in Figure 2 are examples, and each component of the comb teeth 11 can be formed to any dimensions.
[0025] The teeth of the comb 11 in the first region 10A are formed in an arc shape with a first radius of curvature (RO. 12 mm in the example shown in Figure 2(a)). In the example shown in Figure 2(a), one tooth 11 of the comb 11 in the first region 10A can cut one strand of hair when the thinning scissors 1 are used horizontally ("normal use").
[0026] The blades of the comb teeth 11 in the second region 10B are formed in an arc shape with a second radius of curvature (RO. 18 mm in the example shown in Figure 2(b)). In the example shown in Figure 2(b), one comb tooth 11 in the second region 10B can cut three strands of hair when the thinning scissors 1 are used horizontally ("normal use").
[0027] The teeth of the comb 11 in the third region 10C are formed in an arc shape with a third radius of curvature (RO. 22 mm in the example shown in Figure 2(c)). In the example shown in Figure 2(c), one tooth 11 in the third region 10C can cut six strands of hair when the thinning scissors 1 are used horizontally ("normal use").
[0028] As shown in Figure 2, the second radius of curvature of the comb teeth 11 in the second region 10B is smaller than the third radius of curvature of the comb teeth 11 in the third region 10C. Furthermore, the first radius of curvature of the blades of the comb teeth 11 in the first region 10A is smaller than the second radius of curvature of the blades of the comb teeth 11 in the second region 10B. Thus, it is desirable for the first body 10 to have comb teeth 11 in which the blades have an arc shape with a smaller radius of curvature towards the tip.
[0029] Furthermore, the arc-shaped blades of the comb teeth 11 curve from the tip 11a of the comb teeth 11 towards the root, reaching the base 11b, and then curve from the base 11b towards the tip, extending to the proximal tip 11c. The tip 11a of the comb teeth 11 is formed closer to the root than the proximal tip 11c.
[0030] In the example shown in Figure 2(a), the first depth dimension of the comb teeth 11 in the first region 10A, from the tip of the tooth 11a to the base of the blade 11b, is 0.04 mm. In the example shown in Figure 2(a), one comb tooth 11 in the first region 10A can cut one strand of hair when the thinning scissors 1 are used vertically.
[0031] In the example shown in Figure 2(b), the second depth dimension of the comb teeth 11 in the second region 10B, from the tip of the tooth 11a to the base of the blade 11b, is 0.1 mm. In the example shown in Figure 2(b), one comb tooth 11 in the second region 10B can cut two strands of hair when the thinning scissors 1 are used vertically.
[0032] In the example shown in Figure 2(c), the third depth dimension of the comb teeth 11 in the third region 10C, from the tip of the tooth 11a to the base of the blade 11b, is 0.15 mm. In the example shown in Figure 2(c), one comb tooth 11 in the third region 10C can cut three strands of hair when the thinning scissors 1 are used vertically.
[0033] Thus, it is desirable for the first body 10 to have comb teeth 11 on the tip side where the depth dimension from the tip side tooth tip 11a to the blade base 11b is smaller.
[0034] Returning to Figure 1, the first body 10 has multiple comb teeth 11 arranged at predetermined intervals (1.1 mm in the example shown in Figure 1) in the first region 10A, the second region 10B, and the third region 10C. In the example shown in Figure 1, the multiple comb teeth in the first region 10A, the second region 10B, and the third region 10C are all arranged at the same predetermined interval, but the spacing between the multiple comb teeth 11 can be any dimension. For example, the multiple comb teeth 11 may be arranged at different intervals in the first region 10A, the second region 10B, and the third region 10C, or only in the first region 10A, the multiple comb teeth 11 may be arranged at a predetermined interval different from that of the other regions (for example, a narrower interval than in the other regions).
[0035] The first region 10A and the second region 10B, and the second region 10B and the third region 10C are each arranged at a specific interval (1.8 mm in the example shown in Figure 1) that is different from the predetermined interval (1.1 mm in the example shown in Figure 1). Specifically, the first region 10A and the second region 10B, and the second region 10B and the third region 10C are each arranged at a specific interval that is wider than the predetermined interval.
[0036] The second body 20 is a rod blade having a cutting edge that extends continuously from the tip end to the base end. The second body 20 extends from the base end where the gripping portion 210 is formed towards the tip end, and is rotatably connected to the first body 10 by a connecting portion 5 in its intermediate portion. The second body 20 has a continuously extending blade tip formed at the tip end by the connecting portion 5. The second body 20 also has a gripping portion 210 formed at the base end by the connecting portion 5, which includes an annular portion through which the user of the thinning scissors 1 (e.g., a hairdresser) can insert their fingers, and a protruding portion that extends from the outer edge of the annular portion and which the user can grip with their fingers. The second body 20 is not limited to a straight blade, but may also be composed of a comb blade with comb teeth that slide against the multiple comb teeth 11 of the first body 10.
[0037] Furthermore, the second body 20 is formed to be shorter than the first body 10 by the length of multiple comb teeth 11 (four in the example shown in Figure 1) arranged at predetermined intervals, from the connecting portion 5 to the tip.
[0038] Next, I will explain how to use thinning shears 1. [How to use to straighten hair strands] In this embodiment, "hair crossing" refers to a condition where several hairs growing from a single hair follicle become entangled from the root. Hair crossing affects hair flow and is therefore a factor that hinders hairstyle styling.
[0039] Figure 3 illustrates a method of using thinning scissors according to an embodiment of the present invention to straighten intersecting hair strands. First, when the practitioner (hairdresser, etc.) uses thinning shears 1 to straighten intersecting hairs, they observe the area around the client's crown and comb against the observed hair growth direction. Specifically, the practitioner holds thinning shears 1 in a backhand position, stands to the side of the client's head, and begins the treatment from a direction against the hair growth direction.
[0040] Next, the practitioner holds the first part 10 (comb blade) of the thinning shears 1 downwards, opens the thinning shears 1 to a 90-degree angle, and places the tip of the first part 10 against the scalp of the person being treated. Maintaining the first part 10 at an angle of 40 to 50 degrees to the horizontal, the practitioner combs against the direction of hair growth. At this time, it is desirable to comb in small, gradual sections of 1 mm each.
[0041] Ideally, the practitioner should comb the hair in sections of 5-6 cm horizontally and 3-4 cm vertically.
[0042] [How to use to straighten hair strands] In this embodiment, "hair flow crossing" refers to a state in which multiple hairs remain untangled from the hair flow crossing at the root, or where hairs become entangled and cross each other from the middle to the ends due to some kind of friction. Hair flow crossing is a factor that hinders hairstyle styling, as it causes hair to tangle during brushing, preventing the hair from flowing in the desired direction, and resulting in hair becoming wavy, etc.
[0043] Figure 4 illustrates a method of using thinning scissors according to an embodiment of the present invention to straighten hair flow crossings. First, the practitioner (hairdresser, etc.) observes the upward movement of the hair flow on both sides of a block where the hair crossings have been straightened, and then separates the hair bundles into panels along the observed hair flow, away from the scalp.
[0044] Next, the stylist holds the thinning scissors 1 upside down (with the tip of the thinning scissors 1 positioned towards the stylist's little finger) while keeping them closed, and opens the thinning scissors 1 at a distance of 2-4 cm from the hair root, then combs the hair. At this point, if the stylist wants to make fine adjustments to the hairstyle, it is desirable to cut in the first area 10A (see Figure 1: for example, an area suitable for cutting one strand), and if they want to adjust the direction of the hair flow, it is desirable to cut in the second area 10B (see Figure 1: for example, an area suitable for cutting three strands) or the third area 10C (see Figure 1: for example, an area suitable for cutting six strands).
[0045] Next, the operation and effects of the thinning shears 1 according to this embodiment will be described. According to the thinning scissors 1 of this embodiment, the amount of hair that can be cut by the comb teeth 11 of the first region 10A is different from the amount of hair that can be cut by the comb teeth 11 of the second region 10B. Therefore, when thinning hair, the stylist can adjust the amount of hair to be thinned according to its location by cutting with the comb teeth of the first region 10A in areas where hair is present and with the comb teeth 11 of the second region 10B in other areas. Therefore, it is possible to provide thinning scissors that allow for adjustment of the direction of hair flow and more delicate adjustment of hair volume.
[0046] Furthermore, according to the thinning shears 1, the first region 10A, where the radius of curvature of the arc-shaped blade is smaller, is located closer to the tip than the second region 10B. In this way, by positioning the first region 10A, which has a smaller radius of curvature of the arc-shaped blade, closer to the tip, it is possible to reduce the amount of hair cut near the scalp. Therefore, it becomes easier to adjust the direction of hair growth near the scalp, which has a greater influence on the direction of hair flow, and more precise adjustment of hair volume becomes possible.
[0047] Furthermore, according to the thinning scissors 1, the first region 10A and the second region 10B are arranged at a specific interval that is different from the predetermined interval of the multiple comb teeth 11 in the first region 10A and / or the second region 10B. Therefore, it becomes easier for the practitioner to grasp the position of the first and second regions on the comb blade.
[0048] Although the present invention has been described above using embodiments, it goes without saying that the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be obvious to those skilled in the art that various modifications or improvements can be made to the above embodiments. Furthermore, it is clear from the claims that such modified or improved forms may also be included in the technical scope of the present invention. [Explanation of Symbols]
[0049] 1. Thinning shears 5 Connecting part 10 First body 10A First region 10B Second region 10C Third region 11 Comb teeth 11a Tip-side tooth tip 11b Blade bottom 11c Base-end-side tooth tip 20 Second body 110 Holding part 210 Holding part
Claims
1. A thinning shear comprising a comb blade with multiple comb teeth arranged in a row, and a rod blade that is rotatably connected to the comb blade at the connecting part and has a cutting edge that extends continuously from the tip to the base, Each of the multiple comb teeth has an arc-shaped blade formed at its tip. The comb blades are at least, The first region is composed of the comb teeth, which are formed in an arc shape with a first radius of curvature, The blade includes a second region composed of comb teeth formed with a second radius of curvature different from the first radius of curvature, The aforementioned rod blade is formed to have a shorter length from the connecting portion to the tip than the comb blade. The first region is characterized in that, when the cutting edge of the rod blade is in a state that it overlaps with the comb blade, the comb teeth overlap with the rod blade and the comb teeth do not overlap with the rod blade.
2. The first radius of curvature is smaller than the second radius of curvature. The comb blade has the comb teeth arranged on the tip side and a gripping portion on the base side that is held by the operator. The thinning shears according to claim 1, characterized in that the first region is located closer to the tip than the second region.
3. The first region and / or the second region have a plurality of comb teeth arranged at predetermined intervals. The thinning shears according to claim 1 or 2, characterized in that the space between the first region and the second region is arranged at a specific interval different from the predetermined interval.
4. A method of using thinning shears as described in claim 1, Hold the thinning scissors so that the tip protrudes from the little finger side. Pull the bundle of hair away from the scalp, A method for using thinning shears, characterized by cutting the bundle of hair with the thinning shears at a position selected from the first region or the second region.
Citation Information
Patent Citations
comb scissors
JP1994081463U
Combing scissors for hair dressing
JP2003062364A
Hair thinning scissors
JP2004049349A
Hair trimming thinning scissors
JP2005323951A
Combing scissors for hair straightening
JP3123764U