HK1212177B - Comb - Google Patents

Description

comb

Technical Field

The present invention relates to a comb that can improve the efficiency of the parting operation during hair cutting, accurately and easily measure the length of hair, and assist in hair trimming.

Background Art

Conventionally, combs have been used not only for haircuts but also for sorting hair for trimming in beauty salons. Furthermore, in beauty salons, when creating a parting line (called a "parting line") during a haircut, sometimes a tapered comb rim (a component larger than the teeth) is used at the end of the comb body, rather than a plurality of teeth.

FIG23(a) shows a comb D1, an example of a conventional comb. Comb D1 has a sharp-tipped comb edge D1a at one end, extending parallel to a plurality of comb teeth D1b. FIG23(b) shows a parting line using comb edge D1a. The tip of comb edge D1a is placed against the desired parting W on the scalp Ha, and the fingers F of the hand not holding comb D1 are placed against comb edge D1a. The comb edge D1a and fingers F pinch the hair bundle that has been separated outward from comb edge D1a. In this state, comb edge D1a is moved along the line along which parting W is to be formed. This allows a predetermined amount of hair to be sequentially divided into two parts along parting W on the scalp Ha, forming a parting line.

On the other hand, conventionally, there are combs that have a length measurement scale marked on a comb body with multiple teeth extended, allowing the length of hair to be measured using the comb (see Patent Documents 1 to 3 listed below). Furthermore, Patent Document 4 listed below discloses a comb that uses laser light to burn dot-shaped scales into the comb body or grip, allowing the length of hair to be measured using the scales.

Furthermore, the following cited document 5 discloses a comb in which a plurality of through-holes formed on the side of a comb body are spaced at predetermined intervals, enabling hair length measurement via the through-holes. Furthermore, the following cited document 6 discloses a comb in which a plurality of tips are formed on the side of a comb body, with the tips spaced at predetermined intervals, enabling hair length measurement via the tips.

Prior art literature

Patent Literature

Patent Document 1: Japanese Utility Model Application Laid-Open No. 57-12104

Patent Document 2: Japanese Patent Application Laid-Open No. 2007-325889

Patent Document 3: Japanese Utility Model Application Laid-Open No. 53-102798

Patent Document 4: Registered Utility Model No. 3107399

Patent Document 5: Japanese Utility Model Application Laid-Open No. 6-66504

Patent Document 6: Japanese Patent Application Laid-Open No. 2005-304720

Summary of the Invention

Problems to be solved by the invention

As shown in FIG23(b), at the tip of comb edge D1a, the hair bundles that have separated outward from comb edge D1a are trapped between comb edge D1a and finger F. However, because finger F and comb edge D1a face each other over a large area along the outer periphery of comb edge D1a, a predetermined amount of the trapped hair bundles become blocked between them. Consequently, the blocked hair bundles act as resistance to the movement of comb edge D1a, hindering the smooth movement of comb edge D1a along the line intended to form parting line W. Furthermore, a portion of the hair bundles that become blocked and caught by the lack of smooth movement of comb edge D1a may escape from between comb edge D1a and finger F and remain near parting line W. This remaining hair portion blurs the boundary of parting line W, detracting from the aesthetic appearance of the parting line.

On the other hand, when measuring hair length using graduated combs such as those disclosed in Patent Documents 1 to 3, the outer edge of the comb rim of these combs (the outer peripheral portion of the front end of the entire comb) is generally formed straight or curved to convex outward. Therefore, for example, as shown in FIG24 , when measuring hair length from the scalp Ha, if the outer edge of the comb rim D2a provided at one end of the comb D2 is placed against the scalp Ha, the curved scalp Ha and the outer periphery of the straight comb rim D2a come into contact at one point. This causes the comb D2 being measured to assume an unstable position, swaying around the contact point (swaying in the direction indicated by the black arrow in FIG24 ), resulting in the problem of preventing stable measurement.

Furthermore, the comb disclosed in Patent Document 4 is not designed to allow the comb edge to contact the scalp, making it unsuitable for measuring hair length from the scalp. Furthermore, the combs disclosed in Patent Documents 5 and 6 have outwardly convex curved outer edges. Therefore, when the comb edges are placed against the scalp, the outwardly convex curved surfaces abut against each other, creating a more unstable posture than the combs disclosed in Patent Documents 1 to 3, preventing stable measurement.

Furthermore, in practical instruction at barber schools and cosmetology schools, or in practical appraisals of barbering and beauty, there is a practical technical challenge of trimming hair pulled from the scalp at a predetermined angle to a specified length. In this case, changing the angle at which the hair is pulled from the scalp naturally changes the trimmed length, making the angle at which the hair is pulled from the scalp a crucial practical technical issue. However, the combs described in Patent Documents 1 to 6 above cannot measure the angle at which the hair is pulled from the scalp, making them ineffective in addressing this practical technical issue.

Furthermore, generally, the way a comb is held varies depending on the user, with some users gripping the comb body from left and right with their fingertips, others holding the comb with the bases of their fingers locked onto it. The comb disclosed in Reference 6 has a tip portion provided on the comb body to enable hair length measurement, functioning as a fingertip anti-slip feature. However, since the tip portion cannot lock onto the bases of the fingers, for users who hold the comb with the bases of their fingers locked onto it, the comb is still not user-friendly.

The present invention has been made in view of the relevant circumstances, and its object is to provide a comb that can smoothly perform the parting operation by forming a recessed portion on the outer edge surface of the comb edge to alleviate the state of hair bundles being blocked between the comb edge and the user's fingers when forming a parting slit.

Another object of the present invention is to provide a comb for measuring the length of hair from the scalp, wherein the above-mentioned recessed portion ensures that when the outer edge of the comb edge is placed against the scalp, two points of contact are achieved at locations remaining on both sides of the recessed portion, thereby stabilizing the posture of the comb and enabling easy and accurate measurement of hair length.

Another object is to provide a comb that not only utilizes the above-mentioned recessed portion for accurate length measurement but also improves usability by being locked at the base of the user's fingers holding the comb.

Means for solving problems

In order to solve the above-mentioned problems, the comb of the present invention comprises a comb body; a comb edge portion at one end thereof in the long side direction; and a plurality of comb teeth arranged on the comb body, characterized in that a recess is formed on the outer edge surface between the front end side and the base end side of the comb edge portion at the one end thereof.

In the present invention, a recessed portion is formed on the outer edge of one comb end (the outer peripheral portion corresponding to one front end of the comb). When the comb end is used to form a parting in the hair, a space created by the recessed portion is created between the comb end and the finger resting against the comb end. Consequently, the hair bundle sandwiched between the comb end and the finger can be spread out in the space created by the recessed portion, easing the sandwiched state and reducing the resistance. This allows the comb end to move smoothly along the parting line, resulting in a beautiful parting line.

The comb according to the present invention is characterized in that markings indicating distances along the longitudinal direction are provided on the comb body, and by placing the outer edge surface of the comb edge at one end against the scalp, the outer edge portions remaining on both sides of the recessed portion can be brought into contact with the scalp, and the hair length can be measured based on the markings.

In the present invention, a distance measurement mark is formed on the comb body, which includes the aforementioned recessed portion, at one end of the comb rim. Therefore, when the outer edge of the comb rim, which forms the front end surface of one end of the comb as a whole, is placed against the scalp, the outer peripheral portions remaining on both sides of the recessed portion contact the scalp, thereby ensuring a two-point contact state with the scalp. This two-point contact state stabilizes the comb's position during measurement, enabling accurate measurement of hair length.

The comb according to the present invention is characterized in that a grip portion is formed on the other end side of the comb body, and an outer edge recess is formed on the outer edge surface of the grip portion. By placing the outer edge surface of the grip portion against the scalp, the outer edge portions remaining on both sides of the outer edge recess can be brought into contact with the scalp, and the hair length can be measured based on the mark.

In the present invention, a grip is formed on the other end of the comb body, and a recess is formed on the outer edge of the grip (the outer peripheral portion of the other end surface of the entire comb). This ensures two-point contact with the scalp even when the outer peripheral portion of the grip is placed against the scalp. This allows for stable hair length measurement even from the grip side. Furthermore, the recess formed in the grip also serves as a locking point for the base of a finger, etc., further enhancing the user's ease of use of the comb.

The comb according to the present invention is characterized in that it includes a second end comb edge formed on the second end side of the comb body in the longitudinal direction, and a second end recess is formed on the outer edge surface between the front end side and the base end side of the second end comb edge. By placing the outer edge surface of the second end comb edge against the scalp, the outer edge portions remaining on both sides of the second end recess can be brought into contact with the scalp, and the hair length can be measured based on the mark.

In the present invention, a recessed portion (other end recessed portion) is also formed on the outer edge surface of the other end comb rim provided on the other end side of the comb body (the outer peripheral portion corresponding to the other end surface constituting the entire comb). Therefore, even when the outer peripheral portion of the other end comb rim is placed against the scalp, a two-point contact state with the scalp is ensured. Therefore, stable measurement can be performed using either end side of the comb, and accurate measurement of hair can be performed from either side of the comb according to the user's convenience.

The comb according to the present invention is characterized in that an outer edge surface of the one-end comb edge portion is formed obliquely with respect to a longitudinal direction of the comb body.

In the present invention, the outer edge of one end of the comb rim is formed at an angle. Therefore, when the outer edge of the one end of the comb rim is placed against the scalp for hair measurement, the comb is tilted relative to the normal direction of the scalp, which is the relevant curved surface. This allows the hair length to be measured at a predetermined angle relative to the scalp. Therefore, by setting the tilt angle of the outer edge of the one end of the comb rim to an angle frequently encountered in practical technical problems, such as practical technical instruction in barber schools and cosmetology schools, or practical technical appraisals in barber and beauty treatments, a comb suitable for such practical technical problems can be provided.

The comb of the present invention is characterized in that the outer edge surface of the comb edge at one end and the outer edge surface of the comb edge at the other end are respectively formed skewed relative to the long side direction of the comb body, so that the skew angle of the outer edge surface of the comb edge at one end is different from the skew angle of the outer edge surface of the comb edge at the other end.

In the present invention, the outer edge surfaces of the comb rim at one end and the comb rim at the other end are tilted at different angles, making it possible to accurately and easily measure hair length at two different angles. Therefore, setting the outer edge surfaces of the comb rims at both ends at two angles, which are frequently encountered in practical technical problems, is very useful in solving practical technical problems.

The comb according to the present invention is characterized in that a first mark indicating a distance viewed from one end of the comb body and a second mark indicating a distance viewed from the other end of the comb body are provided on the comb body.

In the present invention, since the first mark indicating the distance as viewed from one end of the comb body and the second mark indicating the distance as viewed from the other end are provided on the comb body, the first mark and the second mark can be used appropriately and separately, and the distance can be accurately measured from both sides of the comb body.

The comb according to the present invention is characterized in that the first mark corresponding to the first distance unit system and the second mark corresponding to the second distance unit system are provided on the comb body.

In the present invention, since the first and second markings corresponding to two distance unit systems are provided, a single comb can be used to measure hair length based on both distance unit systems. Furthermore, as an example of two distance unit systems, it is suitable to use the first marking in mm (millimeter) units, which are commonly used in Japan, and the second marking in inches (inches), which are commonly used in Europe and the United States.

The comb according to the present invention is characterized in that the first mark is a mark different from the second mark.

In the present invention, since the first and second marks are different, they can be distinguished at a glance. Even when two marks are present, hair length can be measured smoothly using the mark to be used. Furthermore, as an example of differentiating the first and second marks, the first mark may be formed by providing a plurality of concave and convex portions on the back of the comb body, with the spacing (pitch) between the concave and convex portions set to a predetermined size, and the second mark may be formed by forming a plurality of through-holes in the comb body, with the spacing (pitch) between the through-holes set to a predetermined size.

The comb according to the present invention is characterized in that a comb portion having a plurality of comb teeth is provided at the one-end comb edge portion, and the outer edge surface is formed by the tips of the respective comb teeth of the comb portion.

In the present invention, the comb portion is provided so as to form the outer edge surface of the comb edge at one end. Therefore, the comb portion can separate the hair and easily bring the outer edge surface of the comb edge at one end into contact with the scalp. Therefore, even if the comb edge at one end has difficulty reaching the scalp due to the obstruction of the hair, such as in the case of a large amount of hair or long hair, the comb portion can still separate the hair and reliably bring the comb edge at one end into contact with the scalp.

The comb of the present invention is characterized in that the thickness of the one-end comb edge is larger on the base end side than on the front end side, and a recess is formed on the outer edge surface on the base end side of the one-end comb edge at a central portion corresponding to the thickness direction.

In the present invention, a recess is formed in the center of the thickness direction of the base end of the thickened comb rim. This leaves three peripheral portions remaining between the recess and the surrounding area. As a result, when the outer edge of the comb rim is placed against the scalp, the remaining three peripheral portions come into contact with the scalp, ensuring a three-point contact state with the scalp. This, in turn, ensures a stable comb position, allowing for easier and more accurate hair length measurement.

The comb according to the present invention is characterized in that a side recess is formed on at least one of the side surfaces between the front end side and the base end side of the comb edge at the one end.

In the present invention, since the lateral recessed portion is formed on at least one side of the comb edge at one end, space for the hair bundles to spread out can be ensured on the side. Consequently, when the comb edge at one end is moved to perform a hair separation operation, the hair bundles separated by the front end of the comb edge at one end are less likely to become clogged, further improving the workability of the hair separation and also increasing the efficiency of the operation. Furthermore, if the lateral recessed portion is formed to communicate with the recessed portion on the outer edge surface, a unified recessed space can be ensured, further reducing the resistance felt by the inserted hair bundles, which is therefore suitable.

Effects of the Invention

In the present invention, by forming a recessed portion at one end of the comb edge, a predetermined space can be ensured between the user's finger and the comb edge at one end, thereby alleviating the situation where the separated hair bundle is blocked in the gap, enabling smooth line separation and preventing a portion of the blocked hair bundle from remaining in the parting seam, thereby helping to effectively create a beautiful parting seam.

In the present invention, since the mark for distance measurement is formed on the comb body by extending the comb edge portion at one end having the recessed portion, when the outer peripheral portion of the comb edge portion at one end, which becomes the front end of the comb, is placed against the scalp, the outer edge portions remaining on both sides of the recessed portion abut against the scalp. Therefore, a two-point contact state can be ensured with respect to the scalp. This two-point contact state stabilizes the posture of the comb during measurement, allowing accurate measurement of hair length.

In the present invention, a grip is formed on the other end of the comb body, and a recess is formed on the outer periphery of the grip. Therefore, even when the outer periphery of the grip is placed against the scalp, a two-point contact state with the scalp is ensured, and hair length can be measured in a stable posture from the grip side. Furthermore, the recess formed in the grip can function as a locking portion for the base of a finger, etc., thereby improving the user's convenience in using the comb.

In the present invention, even when measuring at the other end, the posture of the comb can be stabilized by the other end recess formed on the other end comb edge, thereby improving the usability of the comb for hair measurement.

In the present invention, since the outer edge surface of the comb edge at one end is formed to be skewed, accurate hair length measurement can be performed at an angle related to the skewness, thereby providing a comb suitable for practical use in hairdressing and beauty schools or appraisals.

In the present invention, since the angles of the outer edge surfaces of the comb edges at both ends are different, accurate hair length measurement can be performed at two types of skew angles.

In the present invention, since the first mark indicating the distance as viewed from one end and the second mark indicating the distance as viewed from the other end are provided on the comb body, the length of the hair can be accurately and easily measured by measuring from either end of the comb body, regardless of the overall length of the comb.

In the present invention, since the first mark and the second mark corresponding to two distance unit systems are provided, the length of the hair based on the two distance unit systems can be measured using a single comb.

In the present invention, since the first mark and the second mark are made into different marks, the two marks can be distinguished at a glance.

In the present invention, since the comb portion is provided at one end of the comb edge, the hair can be shaved by the comb portion, and the outer edge of the comb edge at one end is placed against the scalp, which helps to accurately measure the hair length.

In the present invention, a recess is formed in the central portion of the base end side where the thickness of the comb rim at one end is increased, and peripheral portions at three locations remain in and around the recess. Therefore, when the outer edge surface of the comb rim at one end is placed against the scalp, a three-point contact state with the scalp is ensured, thereby ensuring a stable posture of the comb and enabling easier and more accurate measurement of hair length.

In the present invention, since the side recess is formed on at least one side of the side surface of the comb edge at one end, space that can eliminate clogging of hair bundles can be ensured on the side surface, and the workability of the line separation can be further improved when the line separation operation is performed by the comb edge at one end.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic perspective view showing a comb according to a first embodiment of the present invention.

FIG2(a) is a front view showing details of one end side in the longitudinal direction of the comb, and FIG2(b) is a side view showing one end outer edge surface of the comb edge portion.

FIG. 3 is a schematic diagram showing an outline of a line dividing (slit forming) operation of a comb edge portion at one end using the comb according to the present invention.

Figure 4 (a) is a schematic view from the side of the head showing the state where the comb edge of one end of the comb is pressed against the scalp, and (b) is a schematic view from the front of the head showing the state where the comb edge of one end of the comb is pressed against the scalp.

FIG. 5 is a schematic view viewed from above the head, showing a state in which the comb edge at one end of the comb is pressed against the scalp.

FIG6 is an enlarged schematic diagram of the comb edge at one end of the comb, showing a state in which the comb edge at one end of the comb is pressed against the scalp.

7 is a diagram showing a comb according to a second embodiment provided with a gripping portion, wherein (a) is a front view, (b) is a schematic diagram of a main portion showing an example of a gripping method, and (c) is a schematic diagram of a main portion showing another gripping method.

FIG8 is a front view of a comb according to a third embodiment provided with a rod-shaped gripping portion.

FIG9 is a diagram of a comb according to a fourth embodiment, wherein (a) is a front view showing a main portion, and (b) is a schematic diagram showing a state where hair is positioned by the comb and trimmed with beauty scissors.

10 shows a comb according to a fifth embodiment, wherein (a) is a plan view showing a main portion, (b) is a schematic diagram showing narrow comb teeth, and (c) is a schematic diagram showing wide comb teeth.

FIG. 11 is a schematic perspective view showing a comb according to a sixth embodiment.

FIG12 shows a comb according to a sixth embodiment, wherein (a) is a plan view showing one end side in the longitudinal direction, and (b) is a plan view showing the other end side in the longitudinal direction.

13 is a comb according to a seventh embodiment, wherein (a) is a front view showing a main portion of one end side, and (b) is a schematic perspective view showing a state in which the comb portion scrapes the hair and presses it against the scalp.

FIG. 14 is a schematic diagram showing a comb according to an eighth embodiment.

Figure 15 is a comb related to the 8th embodiment, (a) is a schematic view showing the state of the comb edge at one end against the scalp as seen from the side of the head, and (b) is a schematic view showing the state of the comb edge at one end against the scalp as seen from the front of the head.

Figure 16 is a comb related to the 8th embodiment, (a) is a schematic view seen from the side of the head, showing the state in which the edge of the comb at the other end is pressed against the scalp, and (b) is a schematic view seen from above the head, showing the state in which the edge of the comb at the other end is pressed against the scalp.

Figure 17 is a comb related to the ninth embodiment, (a) is a schematic three-dimensional view of the main part of one end side in the longitudinal direction, (b) is a side view showing the outer edge surface of the comb edge at one end, and (c) is a top view of one end side.

FIG. 18 is a schematic diagram showing a state where the comb according to the ninth embodiment is pressed against the scalp.

FIG19 shows a comb according to a tenth embodiment, wherein (a) is a schematic diagram showing a front view, and (b) is a schematic diagram showing a rear view.

FIG20 is a diagram showing a comb according to an eleventh embodiment, wherein (a) is a schematic diagram showing a front view, and (b) is a schematic diagram showing a rear view.

21 is a comb according to a twelfth embodiment, wherein (a) is a front view showing details of one end side in the longitudinal direction of the comb, and (b) is a side view showing one outer edge surface of one end of the comb edge.

Figure 22 shows a state in which a finger is placed against the edge of one end of a comb according to the 12th embodiment in order to perform a line separation operation, (a) is a schematic view as viewed from above the comb, and (b) is a schematic view as viewed from the outer edge surface of one end.

FIG23( a ) is a front view showing one end side in the longitudinal direction of a conventional comb, and FIG23( b ) is a schematic diagram showing an outline of a thread separation operation using a comb edge portion at one end of the conventional comb.

FIG. 24 is a schematic diagram illustrating a problem in a state where a conventional graduated comb is pressed against the scalp.

DETAILED DESCRIPTION

FIG1 is a perspective view schematically showing an overall comb 1 according to a first embodiment of the present invention. In addition to being used for conventional haircutting, the comb 1 of the present invention can also be used to create partings and measure the length of hair (hair bundles, also called tresses), thereby assisting with beautiful haircutting and trimming.

As shown in Figure 1, a comb 1 is a synthetic resin comb having a square rod-shaped comb body 2 with a first end comb rim 3 and a second end comb rim 4 provided at one end 2a and the other end 2b, respectively. The comb body 2 is configured so that a plurality of comb teeth 6 extend from the comb body 2 between the first end comb rim 3 and the second end comb rim 4. The X-axis shown in Figure 1 is along the longitudinal direction of the comb 1 (comb body 2), the Y-axis, which is perpendicular to the X-axis, is along the extending direction of the comb teeth 6 and the comb rims 3 and 4, and the Z-axis, which is perpendicular to the X-axis and Y-axis, is along the thickness direction of the comb 1 (comb body 2) and the comb rims 3 and 4 (the same applies to the other figures). The comb 1 will now be described in detail.

As shown in Figures 1 and 2(a), the comb body 2 has a plurality of through-holes 7 extending from one side surface 2c to the other side surface 2d along the Z-axis. The through-holes 7 are ellipses extending transversely in the X-axis direction, with an elliptical countersunk portion formed around the ellipse. In the first embodiment, the ratio of the inner diameter of the major axis side to the inner diameter of the minor axis side of the through-hole 7 is 2:1. As an example, the inner diameter of the major axis side is set to 5 mm (millimeter), and the inner diameter of the minor axis side is set to 2.5 mm.

As shown in FIG2(a), the through-hole 7 located at the extreme end 2a of the comb body 2 is centered at a distance L from the outer periphery of the comb rim 3 (the top 3g of the outer edge). The second and subsequent through-holes 7, as viewed from the one end 2a, are formed so that the centers of each through-hole 7 are spaced a distance L apart. (Similarly, the through-hole 7 located at the extreme end 2b is centered at a distance L from the outer end of the comb rim 4.) As a specific example of distance L, when the comb 1 is measured in millimeters, it is preferably set to, for example, 10 mm. When the comb 1 is measured in inches, it is preferably set to, for example, 1 inch or 0.5 inch. The through-holes 7 formed at such intervals serve as markings representing a predetermined dimension (marks indicating distances along the longitudinal direction of the comb body 2) for each distance L.

The comb body 2 is sized to have through-holes 7 spaced at intervals of distance L along its longitudinal direction, as described above. The central portion 2e (see FIG. 1 ) of the comb body 2 in its longitudinal direction 2a functions as a gripping portion and is therefore not formed with through-holes 7. The comb 1 is provided with comb teeth 6a (one example of which is 3 mm apart) spaced apart toward one end 2a, and comb teeth 6b (one example of which is 1.5 mm apart) spaced apart toward the other end 2b, centered at the center of this central portion 2e. Furthermore, among the comb teeth 6a at one end, the comb teeth 6c located closest to the comb edge 3 at one end are shorter than the other teeth, as shown in FIG. 2( a ), facilitating the hair parting operation (line separation) performed by the comb edge 3 at one end.

As shown in Figures 1 and 2(a) and (b), the one-end comb rim 3 has a tapering shape with a narrow and pointed front portion. It extends from one end side 2a of the comb body 2 in a direction perpendicular to the comb body 2 (along the Y-axis direction), and serves to surround and protect the comb teeth 6. The one-end comb rim 3 has a one-end recessed portion 3d formed on its outer periphery (the surface forming the outer edge) along the Y-axis. This one-end recessed portion 3d is curved to a point midway from the tapered front end 3a toward the base end 3b, which connects to the comb body 2. Specifically, the one-end recessed portion 3d is formed in an arcuate shape on one end outer edge surface 3c of the one-end comb rim 3 (the surface forming the outer edge of the outer periphery as viewed from the direction of the arrow indicating the X-axis direction). The curvature of the one-end recessed portion 3d is preferably slightly smaller than the minimum curvature of the head of a general human body. In the example shown in FIG. 2(a), the curvature radius is 25 mm.

The comb edge 3 at one end is formed with the aforementioned recessed portion 3d on the outer edge surface 3c of the one end, so that outer edge portions 3e and 3f remain protruding in the Y-axis direction and on both sides (the front end 3a side and the base end 3b side) of the recessed portion 3d. Furthermore, the outer edge surface 3c at one end is formed into a curved shape on the front end 3a side and the base end 3b side. As a result, the outer edge surface 3c at one end has a continuous curved shape in the Y-axis direction, with the outer edge 3e at the front end 3a being convex, the recessed portion 3d at the middle portion being concave, and the outer edge 3f at the base end 3b being convex. As shown in FIG2(a), the outer edge portion 3e of the front end 3a is most convex at the top 3h, and the outer edge portion 3f of the base end 3b is most convex at the top 3g. These tops 3g and 3h are located at the same position in the X-axis direction. These tops 3g and 3h serve as reference points for the distance L from the outer end of the one-end comb rim 3, with respect to the through-hole 7 located on the one-end side 2a of the comb body 2. In FIG2(b), a dashed line is shown to conveniently distinguish the boundary between the portion where the concave one-end recessed portion 3d is formed and the convex outer edge portions 3e and 3f. However, this dashed line is an imaginary line and does not actually appear on the one-end comb rim 3 of the comb 1.

Furthermore, the other-end comb rim 4, shown in FIG1 , provided on the other end side 2b of the comb body 2, is formed symmetrically with the one-end comb rim 3 described above, centered about the center portion 2e in the longitudinal direction of the comb body 2. Specifically, the other-end comb rim 4 has a second-end recessed portion 4d formed on its second-end outer edge surface 4c, corresponding to the outer periphery that faces outward in the X-axis direction, at a location midway between the front end 4a and the base end 4b, which serves as the connection side to the comb body 2. Outer edge portions 4e and 4f remain on either side of this second-end recessed portion 4d (on the front end 4a side and the base end 4b side, respectively).

Figure 3 shows a slit formed by the comb edge 3 at one end of the comb 1 (note that, in Figure 3, the through-hole 7 and other parts are omitted to clarify the key points of the invention). The slit is formed by placing the front end 3a of the comb edge 3 at the desired location on the scalp Ha where the slit W is to be formed. The hair in the slit W is then divided into two parts. The hair that is separated outward from the comb edge 3 is then sandwiched between the outer periphery of the comb edge 3 and the finger F, gradually forming the slit. In the comb 1 of this embodiment, a recessed portion 3d is formed at the outer periphery of the comb edge 3, creating a space S between the comb edge 3 and the finger F. In addition, since the outer edge portion 3e on the front end 3a side and the outer edge portion 3f on the base end 3b side of the outer periphery (one end outer edge surface 3c) of the one end comb edge 3 are convex as described above, the finger F placed against the one end comb edge 3 contacts with these convex portions as the center. Therefore, the contact state between the one end comb edge 3 and the finger F before and after the convex portions is reduced compared with the past (see Figure 23 (b)).

Therefore, the hair bundle between the comb edge 3 at one end and the finger F naturally spreads out in the space S corresponding to the recessed portion 3d at one end, and the clamping force before and after the convex portions of the outer edge 3e on the front end 3a and the outer edge 3f on the base end 3b is reduced compared to the past. Consequently, the feeling of the hair bundle being blocked over a wide area, as in the past, is eliminated. Therefore, when the comb edge 3 at one end is moved along the line to form the parting W, the resistance caused by the hair bundle being blocked disappears, allowing the comb edge 3 to move smoothly and effectively perform the parting operation. Furthermore, by eliminating the hair bundle blockage, the possibility of a portion of hair falling out of the hair bundle separated outward from the comb edge 3 at one end is eliminated, forming a clear parting W and ensuring the aesthetic appearance of the parting line.

4(a), (b), and 5 illustrate the use of the comb 1 described above for measuring hair length. While the example depicts a mannequin H (commonly referred to as a "wig") used for trimming practice, etc., as the trimming target, the same applies to the use of the comb 1 on a human head. The mannequin H is a mannequin with hair implanted throughout the entire head, simulating a human head. (In addition, in FIG. 4(a), (b), and 5, the entire implanted hair is omitted from illustration to highlight the key points of the usage; only the hair in the necessary areas is shown.)

Figure 4(a) is a side view of a human head model H, showing a measurement performed with one side surface 2c of the comb body 2 (see Figure 1) aligned with the side of the human head model H. During the measurement, hair bundles (hair tresses) h1, h2, and h3, approximately 10 to 50 mm in width, are pinched from the head. The comb 1 measures the lengths of these hair bundles h1, h2, and h3 as viewed from the scalp Ha. For example, as shown in Figure 4(a), when measuring a hair bundle h1 located near the back of the head, the pinched hair bundle h1 is held upright from the scalp Ha, and the comb body 2 of the comb 1 is positioned along the hair bundle h1. At this point, the outer edge 3c of the comb rim 3 at one end of the comb 1 is placed against the scalp Ha on the human head model H, at the root of the hair bundle h1.

Figure 6 shows in detail the state in which the outer edge surface 3c of the comb rim 3 at one end of the comb 1 is placed against the scalp Ha near the back of the head. Because the outer edge surface 3c of the comb rim 3 at one end has the aforementioned recessed portion 3d, when the outer edge surface 3c is placed against the scalp Ha, the convex outer edges 3e and 3f on either side of the recessed portion 3d contact the scalp Ha (more specifically, the apex portions 3h and 3g of the outer edges 3e and 3f are in contact). Because the curvature of the recessed portion 3d is slightly smaller than the minimum curvature of the typical human head, a gap is created between the recessed portion 3d and the scalp Ha, allowing the outer edges 3e and 3f on either side to contact the scalp Ha. Therefore, when the outer edge surface 3c of the comb rim 3 at one end of the comb 1 is placed against the scalp Ha, the comb 1 is in a two-point contact state with the scalp Ha based on the outer edge portions 3e and 3f. The comb 1 does not wobble in the direction of the white arrows (left and right) shown in Figure 6, and can maintain a stable posture (no shaking in the direction of the white arrows). As a result, the comb 1 can accurately and easily measure the length of the hair (length measurement is performed using the plurality of through holes 7 as a marker for each distance L) compared to the conventional comb D2 shown in Figure 24.

4 (a) and the like can also be measured in the same manner as the above-mentioned hair bundle h1. In addition, the measurement of hair can be performed in units of 1 or 2 hair bundles, except for the above-mentioned measurement in units of 1 or 2 hair bundles (hair locks).

FIG4(b) is a view from the front of the human head model H, illustrating a case where measurement is performed with one side surface 2c of the comb body 2 (see FIG1 ) aligned with the front of the human head model H. In this measurement, hair bundles h10, h11, h12, etc., to be measured, are pinched from the head. The comb 1, with its one end outer edge surface 3c pressed against the scalp Ha, is moved along these hair bundles h10, h11, h12, etc., allowing measurement to be performed similarly to the case of FIG4(a) described above. As shown in FIG6 , two-point contact is ensured on both sides of the one-end recess 3d, enabling stable measurement.

FIG5 is a view from above of a human head model H, illustrating a situation where measurement is being performed with one side surface 2c of the comb body 2 (see FIG1 ) oriented toward the top of the human head model H. In this measurement, a hair bundle h20, etc., near the back of the head, is pinched from the head to be measured. By moving the comb 1 along these hair bundles h20, etc., a measurement similar to that described in FIG4(a) and (b) can be performed. In this case, because the outer edge surface 3c of one end of the comb 1 resting against the scalp Ha is in a two-point contact state, as shown in FIG6 , stable length measurement is possible. While FIG4(a), (b), and FIG5 illustrate length measurement examples, similar measurements can be performed on other parts of the head.

Furthermore, in cases where the tip position of the hair being pulled from the head has been accurately determined, it is appropriate to use a comb 10 of the type known as a pointed-tail comb, as shown in Figure 5. A pointed-tail comb 10 has a rod-shaped handle 10b protruding from a comb body 10a. By inserting this handle 10b into the through-hole 7 of the comb 1, the comb 1 and comb 10 are combined into an L-shape. This makes it easier to measure hair length than using only the through-hole 7 of the comb 1, as the positional relationship between the tip of the hair being measured and the rod-shaped handle 10b inserted into the through-hole 7 is utilized. Furthermore, the through-hole 7 of the comb 1, where the handle 10b of the comb 10 is inserted, can be appropriately adjusted to suit the length of the hair being measured. If a measurement is deemed inappropriate, the insertion point can be changed to a through-hole 7 at a more appropriate position, and measurement can be repeated. Such a measurement method combined with the comb 10 can of course also be applied to Figures 4(a) and (b). When the through hole 7 is used as a mark to indicate the size, the ability to implement such a measurement method combined with the comb 10 is superior to the scales marked on the comb in the prior art (see patent documents 1 to 3).

Furthermore, the aforementioned description of hair length measurement assumes that the outer edge surface 3c of the one-end comb rim 3 is placed against the scalp Ha. However, even when the outer edge surface 4c of the other-end comb rim 3 is placed against (adhered to) the scalp Ha, the presence of the recessed portion 4d at the other end allows accurate length measurement to be performed in a stable manner, similar to the case where the outer edge surface 3c of the one end is placed against the scalp Ha. Consequently, the user of the comb 1 does not need to be aware of the directionality of the comb 1 and can measure the length of the comb body 2 at either the one-end side 2a or the other-end side 2b. This also provides an advantage over conventional combs (see Patent Documents 1 to 3).

The comb 1 of the first embodiment is not limited to the above-described configuration; various modifications are contemplated. For example, to simplify the structure, the following specifications are possible: instead of providing the other end recess 4d on the other end outer edge 4c of the other end comb rim 4, the other end comb rim 4 may be formed in the same shape as in the prior art, so that only the one end comb rim 3 rests against the scalp during measurement. Furthermore, various other markings, other than through-holes 7, may be used to indicate distances along the longitudinal direction of the comb body 2. For example, the scales shown in Patent Documents 1 to 3 mentioned above may be used.

Figures 7(a), (b), and (c) illustrate a comb 11 according to a second embodiment of the present invention. The second embodiment of the comb 11 is characterized in that a plate-shaped grip 15 is provided extending in the X-axis direction from the other end rim 14 of the other end 12b of the comb body 12. A recess 15d (outer edge recess) is formed on the outer edge 15c of the grip 15, which forms the outer end in the X-axis direction. The recess 15d on the outer edge 15c is different from the recess 4d formed on the other end of the comb rim 4 of the comb 1 described above. Rather than being circular, it is deeply recessed into a V-shaped shape. Specifically, the depth of the recess 15d (depth in the X-axis direction) relative to the width of the recess 15d in the Y-axis direction is approximately 1:2. For example, the depth is 15 mm and the width is 30 mm. In addition, outer edge portions 15e and 15f protrude from the outer edge surface 15c of the grip portion 15 on the one end 15a side and the other end 15b side, which are both sides of the recessed portion 15d.

In addition, the comb 11 is identical to the comb 1 of the first embodiment except for the above-mentioned parts, and a comb edge 13 is provided on one end side 12a of the comb body 12 in which a plurality of through holes 17 are formed and a plurality of comb teeth 16 are extended. The comb edge 13 has an outer edge surface 13c at one end along the Y-axis direction, and a recessed portion 13d is formed at a position in the middle from the front end 13a to the base end 13b, and outer edge portions 13e and 13f are provided on both sides of the recessed portion 13d.

This comb 11 first performs the thread separation operation shown in Figure 3 at the comb rim 13 at one end. Furthermore, by placing either the outer edge 13c of the comb rim 13 at one end or the outer end 15c of the grip 15 against the scalp, the presence of the recessed portion 13d or the recessed portion 15d at one end enables stable length measurement at both ends in the longitudinal direction, similar to the comb 1 of the first embodiment described above. Furthermore, the comb 11 of the second embodiment can also utilize the recessed portion 15d of the grip 15 as a locking portion for a user's fingers when grasping the comb 11.

Figure 7(b) shows an example of a user using the recessed portion 15d as a locking mechanism, ideal for gripping the comb in the thickness direction (Z-axis direction). Specifically, the user grips the comb 11 by pushing the base of the thumb between the thumb and index finger into the recessed portion 15d and locking it. In this case, the protruding outer edges 15a and 15b of the grip 15d lock around the base of the thumb, ensuring a secure grip and preventing the comb 11 from falling out of the hand.

FIG7(c) illustrates an example of a method of holding a comb suitable for a user who grips the comb in the width direction (height direction, Y-axis direction). This method involves pushing the base of the index finger into and locking it in the recessed portion 15d, while the thumb and index finger grip the two ends of the grip 15. In this case, the protruding outer edges 15a and 15b of the grip 15d are locked into the palm of the hand, making it less likely that the comb 11 will fall out of the hand. Furthermore, the comb 11 of the second embodiment is not limited to the above-described method. For example, instead of the through-holes 17, scales such as those shown in Patent Documents 1 to 3 described above may be used as markings indicating distances in the longitudinal direction of the comb body 12.

Figure 8 shows a comb 21 according to the third embodiment of the present invention. The comb 21 according to the third embodiment is a type of comb generally known as a pointed tail comb, and is characterized in that a rod-shaped gripping portion 25 extends from a roughly triangular other end comb edge 24 provided on the other end side 22b of the comb body 22.

The comb 21 is identical to the comb 1 of the first embodiment except for the above-mentioned parts, and a comb edge 23 is provided on one end side 22a of the comb body 22 in which a plurality of through holes 27 are formed and a plurality of comb teeth 26 are extended. The comb edge 23 is provided with a recessed portion 23d formed on an outer edge surface 23c at one end in the direction along the Y-axis, in a position in the middle from the front end 23a to the base end 23b, and outer edge portions 23e and 23f are formed on both sides of the recessed portion 23d.

In this comb 21, while the rod-shaped grip 25 on the other end 22b side ensures the same ease of use as a conventional pointed-tail comb, the recessed portion 23d at one end of the comb rim 23 enables the same thread separation operation as shown in FIG3 and accurate length measurement in a stable position as shown in FIG6 as in the comb 1 of the first embodiment described above. Furthermore, in the comb 21 of the third embodiment, instead of the through-holes 27, a scale or the like described in Patent Documents 1 to 3 can be used as a distance marking.

Figures 9(a) and 9(b) illustrate a comb 31 according to a fourth embodiment of the present invention. The fourth embodiment of the comb 31 is characterized by its dimensional markings. Specifically, similar to the comb 1 of the first embodiment described above, the comb 31 has a plurality of through-holes 37 (first markings) formed in the comb body 32 as dimensional markings. Furthermore, a plurality of valleys 38b and auxiliary valleys 38c are formed on the upper surface 32f of the comb body 32, and these valleys 38b and auxiliary valleys 38c also serve as markings (second markings).

The plurality of valleys 38b are formed so as to coincide with the centers of the plurality of through-holes 37. Consequently, the intervals between the valleys 38b are a distance L (the distance from the valley 38b closest to the comb edge 33 at one end to the outer edge of the comb edge 33 at one end is also a distance L). The valleys 38b are recessed in a V-shape, with the ratio of the opening width to the depth being approximately 1:1. As an example, the opening width and depth are approximately 3 mm.

Furthermore, the auxiliary valley 38c is formed so as to be located between adjacent valleys 38b, with the distance between the auxiliary valley 38c and valley 38b being L/2 (in addition, the distance from the auxiliary valley 38c closest to the comb edge 33 at one end to the outer edge of the comb edge 33 at one end is L/2). Although this auxiliary valley 38c is also a V-shaped depression, its depth is shallower than that of the valley 3b described above. For example, the auxiliary valley 38c has an opening width of 3 mm and a depth of approximately 1.5 mm. Furthermore, a convex peak 38a is formed between adjacent valleys 38b and auxiliary valleys 38c. The concave-convex portion 38 formed by these valleys 38b, auxiliary valleys 38c, and peak 38a can function as a fingertip locking portion for users who grip the comb along the upper surface 32f of the comb body 32.

The comb 31 is identical to the comb 1 of the first embodiment except for the above-mentioned parts. For example, a comb edge 33 is provided on one end side of the comb body 32 that extends a plurality of comb teeth 36. The comb edge 33 has an outer edge surface 33c at one end and outer edge portions 33e and 33f formed on both sides of a recessed portion 33d at one end.

In this comb 31, the recessed portion 33d at one end of the comb rim 33 allows for a neatly divided hairline, similar to the comb 1 of the first embodiment described above, and accurate length measurement can be performed in a stable manner. Furthermore, because the comb 31 has the valley 38b and the auxiliary valley 38c formed on the upper surface 32f of the comb body 32, measurement can be performed from the upper surface 32f of the comb body 32, which easily aligns with the hair. This makes measurement easier, and since the auxiliary valley 38c can measure a distance L/2, which is half the distance L, more detailed measurement can be performed using both valley 38b and auxiliary valley 38c.

Furthermore, as shown in FIG9( b ), the comb 31 can also be used to lock (hook) the peak portion of the back side of the blade of the beauty scissors on the valley portion 38 b and the auxiliary valley portion 38 c. By locking the peak portion of the beauty scissors in this manner, the valley portion 38 b or the auxiliary valley portion 38 c can be used to position the beauty scissors when trimming hair. Therefore, if the valley portion 38 b or the auxiliary valley portion 38 c measures the trimming length, the peak portion of the beauty scissors is locked by the valley portion 38 b or the auxiliary valley portion 38 c related to the measurement, and the beauty scissors are positioned and trimming is performed, thereby smoothly trimming to the correct length.

The comb 31 of the fourth embodiment is not limited to the above-described embodiment. For example, if the distance L/2 does not need to be measured, the auxiliary valley 38 c may be omitted, and the through-hole 37 may be omitted. Furthermore, the other end of the comb body 32 of the comb 31 may be similar to that of the comb 1 of the first embodiment, or may be provided with a gripping portion similar to that of the comb 11 of the second embodiment, or may be provided with a rod-shaped gripping portion similar to that of the comb 21 of the third embodiment.

FIG10( a ) shows a comb 41 according to a fifth embodiment of the present invention. The comb 41 of the fourth embodiment is characterized in that the markings indicating the size are designated as wide marking comb teeth 46 b located at the position indicating the distance L, thereby distinguishing the teeth from the other regular comb teeth 46 a. Furthermore, the comb 41 has the same structure as the first embodiment with respect to the comb edge at one end and the comb edge at the other end.

Specifically, as shown in FIG10(b), the normal comb teeth 46a have a maximum width of W1. Meanwhile, as shown in FIG10(c), the marking comb teeth 46b have a maximum width of W2 (W1 < W2), with W2 being greater than the thickness (Z-axis dimension) of the comb body 42. Consequently, as shown in FIG10(a), the marking comb teeth 46b extend from both side surfaces 42c and 42d of the comb body 42 when viewed from the top surface 42f of the comb body 42. This allows the marking comb teeth 46b to identify the position of each distance L. Furthermore, the distance L is the distance from the top 43g of the outer edge of the marking comb teeth 46b closest to the one end 42a of the comb body 42.

In this way, the comb 41 of the fifth embodiment measures the distance L using the marking teeth 46b protruding from the side surfaces 42c and 42d of the comb body 42. This eliminates the need for through-holes in the side surfaces of the comb body 42 and also eliminates the need for valleys, etc., on the top surface of the comb body 42 as shown in FIG9(a). Furthermore, the protruding marking teeth 46b allow the distance L to be determined not only visually but also by touch with the fingertips, etc. This provides the advantage of enabling a general understanding of the distance by touch, rather than visually inspecting each individual tooth. Furthermore, the various modifications described in the fourth embodiment can also be applied to the other end of the comb body 42 of the fifth embodiment.

Figure 11 shows a comb 51 according to the sixth embodiment of the present invention. The comb 51 according to the sixth embodiment is also characterized by the marks indicating dimensions. By making the first mark provided on the side 52c on one side of the comb body 52 and the second mark provided on the side 52d on the other side marks of different unit systems, one comb 51 can correspond to measurements based on two unit systems.

As shown in Figures 11 and 12(a) and (b), a comb 51 has a curved portion 58 formed on one side surface 52c of the comb body 52, consisting of a plurality of protrusions 58a and recesses 58b. The distance between each protrusion 58a is defined as distance L1 (see Figure 12(a)). The distance L1 also refers to the distance of the protrusion 58a closest to the top 53g of the outer edge 53c of the comb rim 53 at one end 52a of the comb body 52, as viewed from the top 53g. Distance L1 is the distance corresponding to the first distance unit system and the millimeter system, and is set to 10 mm, for example. The protrusion 58a of the curved portion 58 corresponds to the first symbol (a symbol indicating the distance as viewed from the outer edge 53c of the comb 51) (the distance between adjacent protrusions 58a and recesses 58b is L1/2).

The comb 51 also has a curved portion 59 formed on the other side surface 52d of the comb body 52, which is composed of a plurality of protrusions 59a and recesses 59b. The distance between each protrusion 59a is defined by a distance L2 (see Figure 12(b)). The distance L2 also defines the distance between the protrusion 59a closest to the top 54g of the other outer edge surface 54c of the other end comb rim 54, located on the other end side 52b of the comb body 52, as viewed from the top 54g. This distance L2 corresponds to the second distance unit system and the inch system, and is set to 1 inch, for example. The protrusion 59a of the curved portion 59 corresponds to the second symbol (a symbol indicating the distance as viewed from the other outer edge surface 54c of the comb 51) (the distance between adjacent protrusions 59a and recesses 59b is L2/2).

Furthermore, the longitudinal dimensions of the comb body 52 of the comb 51 do not correspond exactly to 10 mm or 1 inch units (in millimeters or inches, the dimensions result in decimals). Therefore, on one side 52c of the comb body 52, the convex portion 58a closest to the top of the other outer edge surface 54c of the other comb rim 54 does not correspond to the distance L1 when viewed from the top 54g of the other outer edge surface 54c, relative to the overall length of the comb body 52. Similarly, on the other side 52d of the comb body 52, the convex portion 59a closest to the top of the one outer edge surface 53c of the one comb rim 53 does not correspond to the distance L2 when viewed from the top 53g of the one outer edge surface 53c, relative to the overall length of the comb body 52.

As shown in FIG11 , the comb 51 includes a first-end comb edge 53 provided on one end 52a of the comb body 52. Similar to the comb 1 of the first embodiment, the first-end comb edge 53 includes outer edge portions 53e and 53f on either side of a first-end recess 53d formed on a first-end outer edge surface 53c. Furthermore, the second-end comb edge 54 provided on the other end 52b of the comb body 52 includes outer edge portions 54e and 54f on either side of a second-end recess 54d formed on a second-end outer edge surface 54c. In addition, the comb body 52 has a grip formed flat at the central portion 52e in the longitudinal direction, and the upper surface 52f is also flat. However, as in the comb 31 of the fourth embodiment related to Figures 9(a) and (b), a valley (auxiliary valley) and a mountain may be provided so that the interval between the valleys is consistent with either the distance L1 or the distance L2. Furthermore, as a third mark, a mark indicating the third distance interval (distance L3) may also be made.

This comb 51 is characterized by its ability to measure length based on two unit systems. Specifically, when the outer edge 53c of one end of the comb rim 53 is placed against the scalp, the convex portion 58a or concave portion 58b of the curved portion 58 formed on one side 52c of the comb body 52 allows for length measurement based on a distance L1 or L1/2 (in mm). Furthermore, when the outer edge 54c of the other end of the comb rim 54 is placed against the scalp, the convex portion 59a or concave portion 59b of the curved portion 59 formed on the other side 52d of the comb body 52 allows for length measurement based on a distance L2 or L2/2 (in inches). Furthermore, during such measurements, the concave portion 53d at one end and the concave portion 54d at the other end stabilize the position of the comb 51 during measurement, enabling accurate length measurement. Furthermore, the comb 51 according to the sixth embodiment can also appropriately perform the thread separation operation as shown in FIG. 3 by the recessed portions 53 d and 54 d .

The comb 51 of the sixth embodiment is not limited to the comb of the above-described embodiment. Two types of markings may be used in place of at least one of the protrusions 58a and 59a, such as the through-holes shown in FIG. 1 , the valleys provided on the comb body shown in FIG. 9( a ), the wide comb shown in FIG. 10 , or conventional scales. Furthermore, the markings provided on the protrusions 58a and 59a on the side of the comb body may also be applied to the combs 1 of the first to fifth embodiments described above.

Figures 13(a) and 13(b) illustrate a comb 61 according to a seventh embodiment of the present invention. While the basic components of the comb 1 of the first embodiment are identical, the comb 61 of the seventh embodiment is characterized in that a comb portion 69 having a plurality of comb teeth 69a is provided on a comb edge 63 at one end. This comb portion 69 forms a first-end outer edge surface 63c, defined by a trajectory K (indicated by a dashed line K in Figure 13(a)) indicating the position of the tips of each comb tooth 69a. Specifically, the first-end outer edge surface 63c is shortened in the area corresponding to the first-end recessed portion 63d, forming a concave shape similar to the first-end outer edge surface 3c of the comb 1. The comb teeth 69a are elongated in the areas corresponding to the outer edge portions 63e and 63f, with the tips of the teeth protruding, forming convex outer edge portions 63e and 63f.

By constructing the comb portion 69 as described above, even when the tips of the comb teeth 69a are placed against the scalp Ha of the head as shown in Figures 4 and 5, two-point contact is maintained, similar to the comb 1 shown in Figure 1, enabling measurement of the length of hair (hair bundles). Furthermore, since the comb teeth 69a are placed against the scalp Ha, considering use on the human head, it is preferable to have a somewhat rounded shape rather than a pointed tip. In the example shown in Figure 13(a), the tooth length of each comb tooth 61a is approximately 5 mm for the shortest and approximately 8 mm for the longest. However, this is not limiting and a range of values from approximately 1 mm to approximately 10 mm is applicable. In particular, to ensure the proper function of the comb (the function of shaving hair), a tooth length of 3 mm or greater is preferably employed. The comb body 62 also includes conventional comb teeth 66.

Figure 13(b) is a schematic perspective view of the comb 61 in use. Because the comb 61 includes a comb portion 69 on one end of the comb edge 63, when measuring hair length, the comb teeth 69a of the comb portion 69 can scrape the hair bundles h40 and h41 apart by pressing the outer edge surface 63c of the comb portion against the scalp Ha. Furthermore, because the individual hairs constituting the scraped hair bundles h40 and h41 fit between the comb teeth 69a, the tips of the comb teeth 69a can be brought into contact with the scalp Ha. Thus, even when measuring hair (hair bundles) on a head with a large amount of hair, the comb 61 can reliably press the outer edge surface 63c of the comb portion 63c (the tips of the comb teeth 69a corresponding to the outer edge portions 63e and 63f) against the scalp by scraping the hair apart, allowing accurate hair length measurement.

In the comb 61 according to the seventh embodiment, the markings described in the above-mentioned embodiments can be appropriately used as markings for measurement. Furthermore, since the teeth 69a of the comb portion 69 have flexibility, they conform to the shape of the scalp to a certain extent, allowing the tips of the teeth 69a to be aligned in a straight line. Furthermore, the comb 61 according to the seventh embodiment can also appropriately perform the line separation operation shown in FIG. 3 using the recessed portion 63d.

Figure 14 shows a comb 71 according to the eighth embodiment of the present invention. The comb 71 according to the eighth embodiment is characterized in that a one-end outer edge surface 73c provided on one end side 72a of the comb body 72, which becomes the outer peripheral side of the one-end comb edge 73, is formed to be inclined at approximately 45 degrees relative to the X-axis direction, and a other-end outer edge surface 74c provided on the other end side 72b, which becomes the outer peripheral side of the other-end comb edge 74, is formed to be inclined at approximately 22.5 degrees relative to the X-axis direction.

Specifically, the outer edge surface 73c of the one-end comb edge 73 is tilted along an inclined line K1 that is inclined 45 degrees with respect to the X-axis direction, thereby forming a triangular shape as a whole. Furthermore, the one-end comb edge 73 has a one-end recessed portion 73d formed between an outer edge portion 73e on the front end 73a side and an outer edge portion 73f on the base end 73b side.

The outer edge surface 74c of the other end comb edge 74 is tilted along an inclined line K2 that is tilted 22.5 degrees relative to the X-axis direction, thereby forming the overall shape of the other end comb edge 74 into an acute triangle. Furthermore, the other end comb edge 74 has a recessed portion 74d formed between an outer edge portion 74e on the front end 74a side and an outer edge portion 74f on the base end 74b side.

In addition, like the comb 1 of the first embodiment, the comb 71 has multiple through-holes 77 formed in the comb body 72, which serve as distance markers. However, the comb edge 73 at one end and the comb edge 74 at the other end are triangular in shape, making them wider than in the first embodiment. Therefore, through-holes 77 are also formed in the comb edge 73 at one end and the comb edge 74 at the other end. Furthermore, the comb 71 has protrusions 78 formed on the top surface 72f of the comb body 72, aligned with the centers of the through-holes 77. Each protrusion 78 also serves as a distance marker. These markers indicate the distance as viewed from the outer edge 73c at one end and the distance as viewed from the outer edge 74c at the other end. Furthermore, the side surfaces of the central portion 72e in the longitudinal direction of the comb body 2 and the top surface 72f are flatly formed to form a grip.

15(a) and (b) show a state where the comb 71 of the eighth embodiment is used on a human head model H. In addition, in FIG15(a) and (b), illustration of the entire implanted hair is omitted to clarify the main point of the use state.

Figure 15(a) is a side view of a human head model H, showing the outer edge 73c of one end of the comb edge 73 resting against the scalp. For example, when measuring the length of a hair bundle implanted near the neck of the back of the head model H, the comb 71 is placed against the scalp with the comb teeth 76 facing upward. The scalp Ha near the neck of the back of the head model H, as shown in Figure 15(a), is a downwardly curved surface tilted downward and leftward. When the outer edge 73c of one end is placed against the downwardly curved scalp Ha, which is tilted at a 45-degree angle, the comb 71 assumes a substantially horizontal position, which is stabilized by the recessed portion 73d at one end.

In addition, when measuring the length of a hair bundle implanted in the back or front part of the top of the human head model H, if the outer edge surface 73c of the comb edge 73 at one end, which is inclined at 45 degrees, is placed against the scalp, the comb 71 will be in a roughly vertical position. In this case, the recessed portion 73d at one end can also stabilize this position.

Furthermore, during measurement, the comb 71 is positioned approximately horizontally or vertically, matching the user's (beautician's or barber's, etc.) sense of direction, making it easier to use. Specifically, when performing tasks such as trimming or combing, the user (beautician's or barber's, etc.) unconsciously uses lines indicating vertical or horizontal directions, such as the vertical or horizontal lines of a rectangular eyeglass frame or a cabinet, as a standard for approximately vertical or horizontal directions. Therefore, because the comb 71 can be positioned approximately horizontally or vertically with its outer edge 73c resting against the head, it aligns with the vertical or horizontal lines surrounding the user, which serve as a reference. This aligns with the user's sense of direction, effectively improving actual ease of use (see Figures 15(a) and (b)).

FIG15( b ) is a front view of the human head model H, showing a state where the outer edge surface 73 c of one end of the comb 71 is placed against the scalp. In this case, since the comb 71 is positioned approximately horizontally or vertically when measuring the length of the hair bundles implanted on the left and right sides of the human head and near the right and left sides of the top of the head, it matches the user's feeling and can be stabilized by the recessed portion 73 d at one end (note that the hair is not shown in FIG15 ).

Furthermore, in practical technical instruction generally provided at barber schools and cosmetology schools, or in practical technical appraisals for barbering and beauty, there are cases where practical technical issues arise that involve pulling the hair out from the scalp at an angle of approximately 45 degrees and trimming it to a prescribed length. The measurement method of the comb 71 shown in Figures 15(a) and (b) is a comb that matches such practical technical issues.

FIG16(a) is a side view of the human head model H, and FIG16(b) is a top view of the human head model H. Both show the case where the outer edge surface 74c of the other end comb edge 74 is placed against the scalp Ha. In this case, the outer edge surface 74c, tilted at 22.5 degrees relative to the scalp Ha, can also be used to measure hair length. Furthermore, the recessed portion 74d at the other end stabilizes the posture during measurement. Furthermore, practical instruction in barbershops and cosmetology schools, or practical certification in barbershops and cosmetology, is often a practical technical challenge involving trimming hair by pulling it out from the scalp at an angle of approximately 22.5 degrees. Therefore, the measurement methods of the comb 71 shown in FIG16(a) and FIG16(b) are suitable for such practical technical challenges. As described above, the comb 71 of the eighth embodiment has the advantage of being able to measure hair length at two different tilt angles using a single comb.

The comb 71 of the eighth embodiment is not limited to the comb of the above-described configuration; other numerical values may be used as the angles of skew between the one-end outer edge 73c and the other-end outer edge 74c. Furthermore, in the case of simplified specifications, either the one-end outer edge 73c or the other-end outer edge 74c may be configured similarly to conventional designs. In this case, hair length can be measured at the skewed angle using one of the skewed outer edges. The markings used in the above-described embodiments may also be used as appropriate for the comb 71 of the eighth embodiment. Furthermore, the comb 71 of the eighth embodiment can also be used to appropriately perform the hair separation operation shown in FIG3 using the recessed portion 73d of the one-end comb edge 73.

FIG17(a) shows a comb 81 according to a ninth embodiment of the present invention. The ninth embodiment of the comb 81 is characterized in that a recess 83i is formed in the outer edge portion 83f on the base end 83b side of a one-end comb rim 83 provided on one end side 82a of a comb body 82 extending a plurality of comb teeth 86. The basic shape of the one-end comb rim 83 itself is identical to that of the comb 1 according to the first embodiment. A one-end recess 83d is formed in the center of the one-end outer edge surface 83c along the Y-axis, and convex outer edge portions 83e and 83f are provided at the leading end 83a and base end 83b, respectively.

As shown in Figure 17(b), with respect to the thickness dimension of the comb edge 83 at one end corresponding to the Z-axis direction, the thickness dimension at the base end 83b side is larger than that at the front end 83a side, so that the thickness dimension of the front end 83a is W12 and the thickness dimension of the base end 83b is W11 (W11＞W12).

17(a), (b), and (c), a recess 83i is formed in the center of the outer edge surface 83c at one end of the base end 83b, corresponding to the thickness direction (Z-axis direction) of the outer edge portion 83f. Due to the recess 83i, the outer edge portion 83f of the base end 83b is divided into two.

FIG18 shows the outer edge 83c of one end of the comb rim 83 resting against the scalp Ha. In this case, as described above, the outer edge 83f of the base end 83b is divided into two by the recess 83i. Therefore, together with the outer edge 83e of the front end 83a, the comb 81 contacts the scalp Ha at three locations. As a result, the comb 81 maintains three points of contact, preventing the comb 1 of the first embodiment from shaking in the direction (Y-axis) illustrated in FIG6 , and also preventing shaking in the thickness direction (Z-axis) indicated by the white arrow in FIG18 , thereby maintaining a more stable posture. Consequently, the multiple through-holes 87 provided in the comb body 82 enable more accurate measurement of hair length.

In the comb 81 according to the ninth embodiment, the symbols used in the aforementioned embodiments can be appropriately applied as measurement symbols. Furthermore, the structures of the other end of the comb body 82 can be appropriately applied as those of the aforementioned first to third embodiments. Furthermore, the structures of the various components of the comb 1 according to the first embodiment through the comb 81 according to the ninth embodiment can be appropriately combined. Furthermore, the comb 81 according to the ninth embodiment can also appropriately perform the thread separation operation shown in FIG. 3 using the recessed portion 83d at one end of the comb edge 83.

Figures 19(a) and 19(b) illustrate a comb 91 according to the tenth embodiment. A comb body 92, formed with a plurality of through-holes 97, features scale marks 98 and 99 on one side 92c and the other side 92d. The scale marks 98 and 99 consist of long lines spaced 10 mm apart and short lines spaced 5 mm apart between the long lines. To measure dimensions from both ends 92a and 92b of the comb body 92, the long and short lines are marked to indicate dimensions as viewed from both ends. Furthermore, the centers of the through-holes 97 formed in the comb body 92 align with the long lines on the scale marks 98 and 99, indicating 10 mm intervals. Each through-hole 97 also functions as a marker indicating 10 mm intervals. Furthermore, the comb 91 is provided with a comb edge 93 having a recessed portion 93d at one end and a comb edge 94 having a recessed portion 94d at the other end on one end side 92a and the other end side 92b of the comb body 92. This allows for the hair to be separated from the comb on either side, as shown in FIG. 3 , and enables stable hair measurement (the comb edge 94 at the other end is particularly easy to separate because the adjacent comb teeth are short).

Figures 20(a) and (b) illustrate a comb 101 according to the eleventh embodiment, which differs from the comb 91 of the tenth embodiment in the form of scale markings. Specifically, scale markings 108 and 109 are marked on one side 102c and the other side 102d of the comb body 102, respectively. These scale markings 108 and 109 measure dimensions from one end 102a of the comb body 102. Furthermore, unlike the tenth embodiment, these scale markings 108 and 109 do not measure minute dimensions (10mm, 5mm). Instead, these scale markings represent commonly used dimensions (2cm, 4cm, 6cm, 10cm, etc.) used in practical technical evaluations and actual beauty salon work. This provides a display method that makes it easy to distinguish desired dimensions at a glance. In addition, the comb 101 is provided with a comb edge 103 at one end having a recessed portion 103d at one end and a comb edge 104 at the other end having a recessed portion 104d at the other end on one end side 102a and the other end side 102b of the comb body 102, so that the thread-parting operation as shown in FIG3 can be properly performed on either side (the thread-parting operation is particularly easy on the comb edge 94 at the other end because the adjacent comb teeth are short).

21(a) and (b) show a comb 111 according to a twelfth embodiment. This comb 111 is characterized in that side recesses 113m and 113n are formed on side surfaces 113j and 113k of a comb edge 113 disposed on one end 112a of a comb body 112.

The comb rim 113 at one end has a first end recess 113d formed on its outer edge surface 113c, similar to the comb 1 of the first embodiment. Furthermore, the comb rim 113 at one end has a first side recess 113m formed on a side surface 113j oriented in the same direction as one side surface 112c of the comb body 112, at the center between the tip 113a and base end 113b (the first side recess 113m is recessed in the Z-axis direction (thickness direction)). Furthermore, the comb rim 113 at one end has a second side recess 113n formed on a side surface 113k oriented in the same direction as the other side surface 112d of the comb body 112, at the center between the tip 113a and base end 113b (the second side recess 113n is also recessed in the Z-axis direction (thickness direction)).

The one-end recessed portion 113d of the one-end outer edge surface 113c, the lateral recessed portion 113m of one side surface 113j, and the lateral recessed portion 113n of the other side surface 113k are formed at the same location in the Y-axis direction, thereby forming a configuration in which the recessed portions 113d, 113m, and 113n are interconnected. Therefore, the central portion of the one-end comb edge 113 between the front end 113a and the base end 113b has a tapered shape around the one-end outer edge surface 113c, one side surface 113j, and the other side surface 113k. The comb 111 of the twelfth embodiment, except for the aforementioned locations, is similar in configuration to the comb 1 of the first embodiment.

Figures 22(a) and 22(b) illustrate an example of using the comb edge 113 at one end of a comb 111 to perform a thread-parting operation. The finger resting on the comb edge 113 during thread-parting varies depending on the user. Some users place their finger not only on the outer edge 113c but also on two surfaces, from the outer edge 113c to the side 113j; others place their finger on two surfaces, from the outer edge 113c to the side 113k; and others place their finger on three surfaces: the outer edge 113c, the side 113j, and the side 113k. These various finger placement methods vary depending on whether the user is using the right or left hand, the size of the user's fingers, and their preferred method of holding the comb.

Figures 22(a) and 22(b) illustrate examples of finger contact, covering two surfaces, from one outer edge surface 113c to one side surface 113m, among the various finger contact methods described above. Figure 22(a) is a view from above the comb, and Figure 22(b) is a view from one outer edge surface 113c. During a hair parting operation, the finger F, contacting the comb edge 113 at one end so that the tip 113a strikes the parting W to be formed on the scalp Ha, covers the two surfaces, from one outer edge surface 113c to one side surface 113j. The hair bundle separated outward from the comb edge 113 at one end is sandwiched between the two surrounding surfaces of the comb edge 113 and the finger F. The hair bundle pinched between the two surfaces of the comb edge 113 at one end and the finger F is naturally spread out in the space formed by the recessed portion 113 d at one end and the recessed portion 113 m at one side.

In addition, since the two surfaces of the comb edge 113 at one end, namely, the portions on the front end 113a side and the base end 113b side (the portions on both sides in the Y-axis direction) which form the one end recess 113d and the one side recess 113m, are convex, the user's finger F contacts with these convex portions as the center, and thus a gap is generated between the finger F and the outer peripheral surface of the comb edge 113 at one end. Due to the existence of this gap, the feeling of being blocked by the hair bundle caught between the two is also alleviated.

Due to the above, the hair bundle between the comb end edge 113 and the finger F does not feel clogged over a wide area along the Y-axis, as in the past. When the comb end edge 113 is moved along the line to form the parting W, for example, in the direction of the arrow shown in FIG22( a ), the resistance caused by the clogged hair bundle is further reduced compared to the past, allowing the comb end edge 113 to move smoothly. Furthermore, the hair bundle that is separated outward from the comb end edge 113 does not fall off, and a clear parting W can be formed.

The content based on Figures 22(a) and (b) is an example. The same applies to the case where a finger is placed across two surfaces, from one end outer edge surface 113c to the other side surface 113k, or the case where a finger is placed across three surfaces, namely, one end outer edge surface 113c, one side surface 113j, and the other side surface 113k. This alleviates the resistance caused by the clogging of hair bundles, allowing the one end comb edge 113 to move smoothly, and enabling efficient hair separation. In addition to the above-mentioned content, the comb 111 of the twelfth embodiment ensures the same functions as the comb 1 of the first embodiment, and of course, the one end outer edge surface 113c of the one end comb edge 113 can also be placed against the scalp to accurately measure the length of the hair.

Furthermore, the comb 111 according to the twelfth embodiment may be configured such that the side recesses 113m, 113n are formed only on one of the side surfaces 113j, 113k of the one-end comb edge 113. Forming the side recesses on only one of the side surfaces 113j, 113k is more convenient for users who perform thread separation operations by placing their fingers against the side surface 113 on which the side recesses are formed. Furthermore, since the dimension of the one-end comb edge 113 in the thickness direction (Z-axis direction) is larger than when the side recesses 113m, 113n are formed on both side surfaces 113j, 113k, it is easier to ensure the rigidity of the one-end comb edge 113.

Furthermore, the comb 111 of the twelfth embodiment can also apply the structures and modifications of the first to eleventh embodiments described above. For example, the various forms described above can be applied to the markings required for length measurement. Furthermore, the comb 111 of the twelfth embodiment can have a structure similar to the one-end comb rim 113 having the above-mentioned side recess formed therein, at the other end of the comb body 112. This allows for smooth thread separation using either comb rim.

Possibility of industrial application

The present invention can be suitably applied to situations where a comb is not only used for haircutting but also for effectively creating a beautiful parting and where the length of hair (hair bundle) can be accurately measured to assist in accurate hair trimming.

Explanation of symbols

1: Comb; 2: Comb body; 3: Comb edge at one end; 3c: Outer edge surface at one end; 3d: Recessed portion at one end; 3e, 3f: Outer edge portion; 4: Comb edge at the other end; 4c: Outer edge surface at the other end; 4d: Recessed portion at the other end; 4e, 4f: Outer edge portion; 7: Through hole; 15: Grip portion; 38: Concave-convex portion; 38a: Mountain portion; 38b: Valley portion; 58, 59: Bend portion; 69: Comb portion; 83i: Recessed portion; 113m, 113n: Side recessed portions.

Claims (2)

1. A comb, the comb comprising a comb body; a comb edge portion disposed at one end along the long side of the comb body; and a plurality of comb teeth disposed on the comb body, characterized in that, The comb edge at one end has a pointed tip for forming a parting line in the hair. A curved recess is formed in the middle portion between the front end side and the base end side of the outer edge surface of one end of the comb. Thus, the outer edge surface is convex on the front end side, concave in the middle portion, and convex on the base end side. The convex top on the front end side and the convex top on the base end side are located at the same position along the long side of the comb body. When viewing the comb edge from the front, by making the edge of the comb teeth on one end of the comb edge straight, the width of the convex top on the front end side is wider than the width of the concave recess in the middle part. The comb body is provided with markings indicating the distance along the long side. A gripping part is formed at the other end of the comb body. On the outer edge surface of the gripping part, an outer edge recess is formed that is deeper and has a different shape than the recessed part, so that the outer edge portion protrudes on both sides of the outer edge recess. 2. The comb as claimed in claim 1, characterized in that, at least one of the sides between the front end side and the base end side is formed at the edge of the comb at one end.