Split hair cutter

Abstract

To provide a user-friendly spilt hair cutter.SOLUTION: A split hair cutter 10 comprises: a holder part 11 for holding a blade body 13; and a cover part 12 that is supported by the holder part 11 and is disposed to oppose to the holder part 11. A recessed part 33 that opens toward the side of the cover part 12 is provided in the holder part 11, and a protrusion 53 that protrudes toward the holder part 11 is provided in the cover part 12. If the holder part 11 and the cover part 12 move into a close proximity state with hair H arranged to pass between the recessed part 33 and the protrusion 53, the hair H is pushed by the protrusion 53 into the recessed part 33, and enters a hair set state in which the hair is bent to project toward the protruding side of the protrusion 53. If the split hair cutter 10 is moved toward the hair tip of the hair H in the hair set state, split hair E that protrudes from the bent part M of the hair H and enters an interior space 31 from an aperture 37 is cut by the blade tip 13a.SELECTED DRAWING: Figure 12

Description

[Technical field]

[0001] The present invention relates to a split end cutter. [Background technology]

[0002] Patent Document 1 discloses a split-end shearing device that cuts split ends that occur at the ends of hair. This split-end shearing device can be equipped with an external electric clipper, and the attached electric clipper is used to cut split ends. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4014154 Summary of the Invention [Problem to be solved by the invention]

[0004] However, since the split-end shearing device of the above-mentioned Patent Document 1 is used by attaching an electric clipper, the size of the whole device including the electric clipper becomes large and it is considered to be difficult to handle. In addition, it is necessary to attach the electric clipper to the split-end shearing device every time split ends are cut, which is troublesome.

[0005] The present invention has been made in consideration of the above circumstances, and has as its main object to provide a split end cutter that is easy to use. [Means for solving the problem]

[0006] In order to solve the above problems, the split end cutter of the present invention has: A split end cutter for cutting split ends caused by splitting of hair, A blade body having a cutting edge for cutting the split ends; A holder portion for holding the blade; a displacement portion supported by the holder portion and provided opposite the holder portion; Equipped with The holder portion is provided with a recessed portion that is open toward the displacement portion, The displacement portion is provided with a protrusion that protrudes toward the holder portion, the displacement portion is relatively displaceable between a first position where the protrusion enters the recessed portion and a second position where the protrusion retreats from the recessed portion, The holder portion is provided with an internal space formed on the opposite side to the open side of the concave portion and accommodating the blade, and an opening portion that communicates between the concave portion and the internal space, the blade is disposed such that the blade tip approaches the protruding portion through the opening when the displacement portion is in the first position, When the displacement portion is displaced to the first position in a state in which the hair is disposed so as to extend between the concave portion and the protruding portion, the hair is pushed into the concave portion by the protruding portion and bent so as to be convex toward the protruding side of the protruding portion, thereby setting the hair in a hair-set state, When the split ends cutter is moved toward the ends of the hair in the set state, the split ends that protrude from the bent portion of the hair and enter the internal space through the opening are cut by the cutting edge. Effect of the Invention

[0007] According to the split-end cutter of the present invention, in a state in which the hair is arranged so as to extend between the recessed portion provided in the holder portion and the protruding portion provided in the displacement portion, the displacement portion is relatively displaced to a first position, whereby the hair is pushed into the recessed portion by the protruding portion and bent so as to be convex toward the protruding side of the protruding portion, resulting in a hair set state. Then, when the split-end cutter is moved toward the end of the hair in the hair set state, the split-end protrudes from the bent portion of the hair and enters the internal space through the opening of the holder portion. The entered split-end is then cut by the cutting edge of the blade housed in the internal space.

[0008] According to the split end cutter of the present invention, the blade is built into the holder, so that the cutter can be made compact and easy to handle. Also, because the blade is built in, there is no need to take the trouble of attaching the blade when cutting split ends. As a result, a split end cutter that is easy to use can be obtained. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1A is a perspective view of the split ends cutter, and FIG. 1B is a perspective view of the split ends cutter seen from a different direction than that of FIG. [Diagram 2] 4A and 4B are side views of the split end cutter, in which FIG. 4A shows the holder part and the cover part in a separated state, and FIG. [Diagram 3] 4A and 4B are front views of the split end cutter, in which FIG. 4A shows the holder part and the cover part in a separated state, and FIG. [Figure 4] FIG. [Diagram 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. 11 is a rear view showing a state in which the blade is set in the holder cover. [Figure 9] 7 is a cross-sectional view taken along line AA in FIG. 6. [Figure 10] 7 is a cross-sectional view taken along line BB in FIG. 6. [Figure 11] FIG. [Figure 12] FIG. 11 is an explanatory diagram for explaining a method of using the split end cutter. [Figure 13] FIG. 13 is a diagram showing how split ends are cut using a split end cutter. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 (a) is a perspective view of the split end cutter 10, and (b) is a perspective view of the split end cutter 10 seen from a different direction than (a). Fig. 2 is a side view of the split end cutter 10, where (a) shows the holder part 11 and the cover part 12 in a separated state, and (b) shows the close state. Fig. 3 is a front view of the split end cutter 10, where (a) shows the holder part 11 and the cover part 12 in a separated state, and (b) shows the close state.

[0011] As shown in Figs. 1 to 3, the split end cutter 10 includes a holder part 11 that holds a blade body 13 (see Figs. 5, 6, etc.) that cuts split ends, and a cover part 12 that is provided opposite the holder part 11. The holder part 11 and the cover part 12 are formed so as to extend in a direction intersecting the opposing direction in which they face each other. The holder part 11 and the cover part 12 are rotatably connected to each other at their base ends. A rotation shaft 14 that extends in the width direction of the cover part 12 is provided at the base end side of the cover part 12. The rotation shaft 14 is inserted into an axial hole 15 provided at the base end side of the holder part 11. As a result, the holder part 11 and the cover part 12 are rotatably connected via the rotation shaft 14. The cover part 12 corresponds to a displacement part.

[0012] The holder part 11 has an inner side surface 11a facing the cover part 12 and an outer side surface 11b facing the opposite side to the cover part 12 side. The cover part 12 has an inner side surface 12a facing the holder part 11 and an outer side surface 12b facing the opposite side to the holder part 11 side. The holder part 11 and the cover part 12 are capable of moving (relatively displaceable) between a separated state (state shown in FIG. 2(a) and FIG. 3(a)) in which the inner sides 11a and 12a are separated from each other and a close state (state shown in FIG. 2(a) and FIG. 3(a)) in which the inner sides 11a and 12a are close to each other by rotation about a rotation shaft 14. The inner side surface 11a corresponds to a first opposing surface, and the inner side surface 12a corresponds to a second opposing surface.

[0013] The holder part 11 and the cover part 12 are constantly biased toward the separated state by a coil spring 17 as a biasing member. Therefore, the holder part 11 and the cover part 12 are normally (naturally) in a separated state. When the holder part 11 and the cover part 12 are shifted from the separated state to the close state, they are shifted against the biasing force of the coil spring 17. In this case, the shift is caused by a gripping operation of gripping the holder part 11 and the cover part 12. In addition, by loosening the grip of the holder part 11 and the cover part 12, the holder part 11 and the cover part 12 return from the close state to the separated state due to the biasing force of the coil spring 17.

[0014] When bringing the holder portion 11 and the cover portion 12 into a close state, only one of the holder portion 11 and the cover portion 12 may be moved, or both the holder portion 11 and the cover portion 12 may be moved.

[0015] Next, the configuration of the holder part 11 will be described with reference to Fig. 4 to Fig. 9. Fig. 4 is a perspective view of the holder part 11, Fig. 5 is an exploded perspective view of the holder part 11, and Fig. 6 is a plan view of the holder part 11. In Fig. 6, the inner surface 11a of the holder part 11 is viewed from the front.

[0016] As shown in Figures 4 to 6, the holder part 11 has a holder body 21 that forms the outer side surface 11b (see Figure 2(a)) of the holder part 11, and a holder cover 22 that forms the inner side surface 11a of the holder part 11. The holder body 21 and the holder cover 22 are made of, for example, a hard resin. The holder body 21 and the holder cover 22 are detachably connected, and the blade 13 is housed between the holder body 21 and the holder cover 22.

[0017] The holder main body 21 has a base plate portion 24 in the shape of a long plate extending in the length direction of the holder portion 11. An outer side surface 11b of the holder portion 11 is formed by a surface 24a of the base plate portion 24. A peripheral wall portion 25 is provided on the back surface 24b of the base plate portion 24, extending from its peripheral edge toward the cover portion 12 side. A part of the base end side of the peripheral wall portion 25 is an extending wall portion 25a that extends more toward the cover portion 12 side than the remaining part, and the axial hole 15 is formed in the extending wall portion 25a.

[0018] The holder cover 22 has a cover plate 27 extending in the length direction of the holder part 11. The cover plate 27 is shorter in length than the base plate 24. A surface 27a of the cover plate 27 forms the inner side surface 11a of the holder part 11. Therefore, the surface 27a of the cover plate 27 corresponds to the first opposing surface, similar to the inner side surface 11a. In addition, a peripheral wall 28 is provided on a back surface 27b (see Figs. 7 and 8) of the cover plate 27, extending from its peripheral edge to the opposite side to the cover part 12.

[0019] The holder cover 22 is disposed on the holder body 21 closer to the tip than the extending wall portion 25a. The holder cover 22 is detachably attached to the holder body 21 in this disposed state. The cover plate portion 27 of the holder cover 22 and the base plate portion 24 of the holder body 21 are spaced apart from each other and face each other. In this case, the space between the cover plate portion 27 and the base plate portion 24 forms the internal space 31 of the holder portion 11 (see FIG. 9). The blade body 13 is accommodated in this internal space 31. In addition, the peripheral wall portion 28 of the holder cover 22 and the peripheral wall portion 25 of the holder body 21 are continuous with each other, and the peripheral walls 25, 28 form a surrounding wall portion 34 that surrounds the periphery of the internal space 31.

[0020] Next, the configuration of the holder part 11 will be described in detail with reference to Figs. 4 to 6 as well as Figs. 7 to 10. Fig. 7 is a perspective view of the holder cover 22, and Fig. 8 is a rear view showing the state in which the blade body 13 is set in the holder cover 22. Fig. 9 is a cross-sectional view taken along line AA in Fig. 6, and Fig. 10 is a cross-sectional view taken along line BB in Fig. 6. In Fig. 9, for ease of explanation, the cover part 12 is also shown by a two-dot chain line.

[0021] 4 to 6, the cover plate 27 of the holder cover 22 is provided with a pair of extending portions 32 that extend from a surface 27a toward the cover portion 12 and face each other. Each extending portion 32 extends in the length direction of the cover plate 27 (in other words, in the length direction of the holder portion 11) and faces each other in the width direction of the cover plate 27 (in other words, in the width direction of the holder portion 11).

[0022] Between each of the extensions 32, a concave portion 33 is formed that is open to the cover portion 12. The concave portion 33 is formed in a groove shape that extends in the length direction of the holder portion 11. The concave portion 33 has a semicircular cross section perpendicular to the longitudinal direction. The concave portion 33 is disposed on one side in the width direction of the concave portion 33 in the cover plate portion 27 (and thus the holder portion 11). In the following description, the one side in the width direction of the concave portion 33 is referred to as the first side X, and the other side is referred to as the second side Y.

[0023] As shown in Fig. 9, an internal space 31 of the holder part 11 is formed on the side opposite to the open side of the concave part 33, that is, on the side opposite to the cover part 12 side of the concave part 33. A partition part 35 that separates the concave part 33 from the internal space 31 in the holder cover 22 has a plurality of openings 37 (seven in this embodiment). The concave part 33 and the internal space 31 are in communication with each other through each of these openings 37. The openings 37 are arranged in a line along the longitudinal direction of the concave part 33. Each opening 37 is formed in the shape of an elongated hole that is long in the width direction of the concave part 33.

[0024] The portion of the partition 35 between adjacent openings 37 is a partition 38 that partitions the adjacent openings 37. A plurality of partitions 38 are provided between each pair of adjacent openings 37. Each partition 38 is elongated and extends in the width direction of the recessed portion 33. The width W1 of each partition 38 is smaller than the width W2 of each opening 37. In addition, the surface 42 of each partition 38 on the recessed portion 33 side is generally arc-shaped and convex toward the recessed portion 33 side when viewed in a cross section perpendicular to the longitudinal direction of the partition 38 (see FIG. 10).

[0025] Next, the internal structure of the holder portion 11 will be described.

[0026] As shown in Figs. 7 and 9, each partition 38 of the holder cover 22 has an inner surface 39 facing the internal space 31. The inner surface 39 of each partition 38 includes an inclined surface 39a inclined with respect to the width direction of the concave portion 33 and a non-inclined surface 39b parallel to the width direction of the concave portion 33. The inclined surface 39a and the non-inclined surface 39b are adjacent to each other in the width direction of the concave portion 33. The inclined surface 39a is located on the second side Y in the width direction, and the non-inclined surface 39b is located on the first side X. The inclined surface 39a is inclined so as to be displaced toward the concave portion 33 (in other words, toward the cover portion 12) as it approaches the non-inclined surface 39b. As a result, a step 41 is generated at the boundary between the inclined surface 39a and the non-inclined surface 39b.

[0027] The cover plate portion 27 of the holder cover 22 is provided with a plurality of ribs 43, 44 protruding from the back surface 27b toward the opposite side to the cover portion 12. The plurality of ribs 43, 44 includes a plurality of inclined ribs 43 and a reinforcing rib 44 connecting the inclined ribs 43. The inclined ribs 43 extend in the width direction of the recessed portion 33 and are disposed at intervals in the longitudinal direction of the recessed portion 33. The inclined ribs 43 are disposed on the opposite side to the non-inclined surface 39b from the inclined surface 39a in the width direction of the recessed portion 33.

[0028] Each inclined rib 43 has a tip end surface (specifically, an end surface on the side opposite to the cover portion 12) that is an inclined surface 43a that is inclined with respect to the width direction of the recessed portion 33 (in other words, the length direction of the inclined rib 43). The inclined surface 43a of each inclined rib 43 is formed on the same plane as the inclined surface 39a of each partition portion 38. The reinforcing rib 44 extends in the longitudinal direction of the recessed portion 33. The reinforcing rib 44 connects each inclined rib 43 on the opposite side of the inclined surface 39a across each inclined rib 43. The tip end surface of the reinforcing rib 44 is an inclined surface 44a that is inclined with respect to the width direction of the recessed portion 33, and the inclined surface 44a is formed on the same plane as the inclined surface 43a of each inclined rib 43.

[0029] A pair of protrusions 45 protruding from the rear surface 27b of the cover plate 27 are provided. The protrusions 45 are disposed in the longitudinal direction of the recessed portion 33 at intervals.

[0030] As shown in Figs. 8 and 9, the blade body 13 is set on the back side of the holder cover 22. The blade body 13 is formed in a rectangular flat plate shape from stainless steel or the like. The blade body 13 has sharp cutting edges 13a, 13b formed on each long side (see also Fig. 5). One of the cutting edges 13a, 13b is used to cut split ends, and the other cutting edge is provided as a spare. Therefore, when one cutting edge becomes dull, the other cutting edge can be used to cut split ends by changing the mounting direction of the blade body 13. In the following description, of the cutting edges 13a, 13b, the cutting edge 13a is used to cut split ends. The blade body 13 has a long hole-shaped hole 13c extending in the long side direction, and the hole 13c is located in the center of the blade body 13 in the short side direction.

[0031] The blade body 13 is disposed so that the cutting edges 13a and 13b extend in the longitudinal direction of the recessed portion 33, straddling the inclined surfaces 39a of the partitioning portions 38 of the holder cover 22, the inclined surfaces 43a of the inclined ribs 43, and the inclined surfaces 44a of the reinforcing ribs 44. In this case, the blade body 13 is disposed obliquely along the inclined surfaces 39a, 43a, and 44a, and is thus inclined with respect to the width direction of the recessed portion 33. The inclination angle α of the blade body 13 with respect to the width direction of the recessed portion 33 is preferably 10 to 30 degrees. In this embodiment, the inclination angle α of the blade body 13 is set to 15 degrees.

[0032] The blade body 13 is arranged with the protrusions 45 inserted into both ends of the hole 13c, respectively. This determines the position of the blade body 13. Also, a part of the cutting edge 13a of the blade body 13 is arranged along the inclined surface 39a of each partition 38, and in this arrangement, the cutting edge 13a abuts against the step 41 of each partition 38. This also determines the position of the blade body 13.

[0033] The blade body 13 is disposed closer to the second side Y in the width direction of the recessed portion 33. In this case, the cutting edge 13a of the blade body 13 faces the first side X in the width direction of the recessed portion 33. Moreover, the cutting edge 13a is located at the same position as the center of the recessed portion 33 in the width direction of the recessed portion 33.

[0034] As shown in Fig. 5 and Fig. 9, the base plate portion 24 of the holder body 21 is provided with a plurality of pedestals 47, 48 extending from the back surface 24b toward the cover portion 12. Each pedestal 47, 48 extends in the length direction of the base plate portion 24 and is formed in a hollow shape that is open toward the cover portion 12. Each pedestal 47, 48 is disposed apart in the width direction of the base plate portion 24. The upper end surface of each pedestal 47, 48 is formed as an inclined surface 47a, 48a that is inclined with respect to the width direction of the recessed portion 33. The inclined surfaces 47a, 48a of each pedestal 47, 48 are on the same plane and are parallel to the inclined surfaces 39a, 43a, 44a of the holder cover 22.

[0035] The blade 13 is disposed on the inclined surfaces 47a, 48a of the bases 47, 48. The blade 13 is sandwiched between the inclined surfaces 47a, 48a of the bases 47, 48 and the inclined surfaces 39a, 43a, 44a of the holder cover 22, and is fixed in the internal space 31. This allows the blade 13 to be held in a stable state in an oblique orientation. Since the blade 13 is fixed in the internal space 31, the blade 13 can be called a fixed blade. In addition, the protrusions 45 of the holder cover 22 are inserted between the bases 47, 48.

[0036] Next, the cover portion 12 will be described with reference to Fig. 11 in addition to Figs. 1 to 3. Fig. 11 is a perspective view of the cover portion 12.

[0037] 1, 2 and 11, the cover portion 12 has a plate-shaped cover plate portion 51 extending in the longitudinal direction of the cover portion 12. An inner surface 51a of the cover plate portion 51 corresponds to the inner surface 12a of the cover portion 12, and an outer surface 51b of the cover plate portion 51 corresponds to the outer surface 12b of the cover portion 12. In this case, the inner surface 51a corresponds to the second opposing surface, similar to the inner surface 12a of the cover portion 12.

[0038] The cover plate 51 is provided with a protruding portion 53 that protrudes from its inner surface 51a toward the holder 11. The protruding portion 53 extends in the length direction of the cover 12. The cross section of the protruding portion 53 perpendicular to the longitudinal direction is formed into a mountain shape (triangular shape) that tapers toward the protruding tip (see also FIG. 9). The protruding portion 53 has an apex 53a, which is the protruding tip, that is formed into an arc surface that is convex toward the holder 11. The radius of curvature of the apex 53a is within a range of 1 to 3 mm, and is 2.5 mm in this embodiment.

[0039] The width direction of the protruding portion 53 is the same as the width direction of the recessed portion 33 of the holder part 11 (see FIG. 9). Therefore, one side of the protruding portion 53 in the width direction is the first side X, and the other side is the second side Y. The protruding portion 53 is disposed on the first side X in the width direction of the protruding portion 53 in the cover part 12. In this case, the protruding portion 53 is located at the same position as the recessed portion 33 in the width direction.

[0040] As shown in Fig. 2(b) and Fig. 3(b), when the holder part 11 and the cover part 12 are brought into a close state, the protruding part 53 enters the recessed part 33. In this case, the protruding part 53 is arranged along the recessed part 33, and the top part 53a thereof abuts against the recessed part 33 (more specifically, each partition part 38) (see also Fig. 12(b)). Note that the top part 53a of the protruding part 53 may not abut against the recessed part 33. Furthermore, when the top part 53a of the protruding part 53 abuts against the recessed part 33, a predetermined gap is formed between the cover part 12 and each extension part 32.

[0041] When the holder part 11 and the cover part 12 are in a close state and the protrusion 53 is inserted into the recessed part 33, the apex 53a of the protrusion 53 approaches the cutting edge 13a of the blade body 13 relatively through each opening 37 of the holder part 11 (see FIG. 12(b)). In this case, the apex 53a of the protrusion 53 is located at the same position as the cutting edge 13a in the width direction of the protrusion 53. Also, as shown in FIG. 2(a) and FIG. 3(a), when the holder part 11 and the cover part 12 are separated from each other, the protrusion 53 retreats from the recessed part 33.

[0042] When the holder part 11 and the cover part 12 are in a close state, the relative position of the cover part 12 with respect to the holder part 11 corresponds to the "first position." When the holder part 11 and the cover part 12 are in a separated state, the relative position of the cover part 12 with respect to the holder part 11 corresponds to the "second position." In this way, the cover part 12 is displaceable relative to the holder part 11 between the first position and the second position.

[0043] The cover plate portion 51 is provided with a pair of ribs 55 that protrude toward the holder portion 11 on the base end side of the protruding portion 53. The pair of ribs 55 face each other in the width direction of the cover portion 12, and each of the ribs 55 has a rotating shaft 14 extending outward in the width direction.

[0044] Next, a method of using the split ends cutter 10 will be described with reference to Figures 12 and 13. Figure 12 is an explanatory diagram for explaining a method of using the split ends cutter 10. Figure 13 is a diagram showing how split ends are cut using the split ends cutter 10. Note that the following describes a case where split ends E occurring at the tip side of hair H are cut using the split ends cutter 10.

[0045] When cutting split ends E using the split end cutter 10, first, as shown in Fig. 12(a), hair H is introduced between the holder part 11 and the cover part 12, which are in a separated state. At this time, hair H is arranged so as to extend between the recessed part 33 of the holder part 11 and the protruding part 53 of the cover part 12 in a direction intersecting the longitudinal direction of the protruding part 53 (in other words, the width direction of the protruding part 53). At this time, the orientation of the split end cutter 10 is such that the recessed part 33 is located on the hair tip side in the holder part 11, in other words, the protruding part 53 is located on the hair tip side in the cover part 12. As a result, the cutting edge 13a is oriented toward the hair tip side in the width direction of the recessed part 33.

[0046] 12(b), the holder part 11 and the cover part 12 are moved from the separated state to the close state, and the protruding part 53 of the cover part 12 is inserted into the recessed part 33 of the holder part 11. As a result, the hair H is pushed into the recessed part 33 by the protruding part 53, and the hair H is bent at the apex 53a of the protruding part 53 so as to be convex toward the protruding side of the protruding part 53, resulting in a hair set state.

[0047] Next, as shown in Fig. 12(c), in the hair set state, the split hair cutter 10 is moved toward the tip of the hair H (see also Fig. 13). In this case, when the split hair E reaches the bent portion M of the hair H, the split hair E protrudes from the bent portion M and enters the internal space 31 through the opening 37. Then, the entered split hair E is cut by the cutting edge 13a of the blade body 13 as shown in Fig. 12(d).

[0048] In this manner, by successively moving the split end cutter 10 toward the hair tip, the split ends E are successively cut by the blade tip 13a, as shown in FIG. 12(e).

[0049] According to the configuration of this embodiment described in detail above, the following excellent effects can be obtained.

[0050] Since the blade body 13 is built into the holder portion 11, the split ends cutter 10 can be made compact, which makes it easier to handle. Also, since the blade body 13 is built in, there is no need to take the troublesome task of attaching the blade body 13 when cutting split ends E. As a result, the split ends cutter 10 is easy to use.

[0051] The recessed portion 33 is a groove extending along the inner surface 11a of the holder portion 11, and the protruding portion 53 extends along the inner surface 12a of the cover portion 12. In addition, by moving the holder portion 11 and the cover portion 12 to a close state and causing the protruding portion 53 to enter the recessed portion 33, the hair H is pushed into the recessed portion 33 and bent so as to be convex toward the protruding side of the protruding portion 53. With this configuration, the combination of the protruding portion 53 and the recessed portion 33 can be used to bend the hair H, causing the split ends E to protrude from the bent portion M. Therefore, with a relatively simple configuration, it is possible to cause the split ends E to protrude and be cut.

[0052] Since a plurality of openings 37 are provided in the longitudinal direction of the recessed portion 33, the size of each opening 37 can be made small. This reliably prevents the hand from accidentally touching the blade tip 13a through the openings 37.

[0053] In order to suitably cut split ends E with the cutting edge 13a, it is desirable that the cutting edge 13a be oriented at an angle with respect to the width direction of the recessed portion 33. In this regard, in the above embodiment, the surface (inner surface 39) of each partitioning portion 38 that partitions adjacent openings 37 in the holder portion 11 on the side of the internal space 31 includes an inclined surface 39a that is inclined with respect to the width direction of the recessed portion 33. A part of the blade body 13 that includes the cutting edge 13a is disposed along the inclined surface 39a of each partitioning portion 38. In this case, it is possible to suitably maintain the cutting edge 13a oriented at an angle by using each partitioning portion 38.

[0054] A step 41 is formed at the boundary between the inclined surface 39a and the non-inclined surface 39b in each partition 38. In this case, the cutting edge 13a can be positioned by abutting the cutting edge 13a against the step 41 of each partition 38. This makes it possible to suitably hold the position of the cutting edge 13a at a desired position where split ends E can be easily cut.

[0055] The blade body 13 is built into the holder part 11 with its cutting edge 13a facing the first side X (one side) in the width direction of the concave part 33. Here, when cutting the split hair E while moving the split hair cutter 10 toward the tip of the hair H, the split hair cutter 10 is moved with the cutting edge 13a facing the hair tip side. However, in a configuration in which the blade body 13 is built into the holder part 11, it is difficult to know which side the cutting edge 13a faces. In view of this point, in the above embodiment, the concave part 33 is arranged in the holder part 11 closer to the first side X (closer to one side) in the width direction of the concave part 33, that is, closer to the side to which the cutting edge 13a faces. In this case, the direction of the cutting edge 13a can be grasped by using the concave part 33 as a mark, and thus the direction of movement of the split hair cutter 10 when cutting the split hair E can be grasped. This makes it possible to prevent the split hair cutter 10 from moving in the opposite direction and causing the inconvenience of being unable to cut the split hair E.

[0056] The recessed portion 33 is disposed closer to the first side X (closer to one side) in the width direction of the recessed portion 33 in the holder portion 11, while the blade body 13 is disposed closer to the second side Y (closer to the other side) in the width direction of the recessed portion 33 in the holder portion 11. This makes it possible to make the holder portion 11, in which the recessed portion 33 and the blade body 13 are provided, more compact.

[0057] The protruding portion 53 has a mountain-shaped cross section perpendicular to the longitudinal direction that tapers toward the protruding tip. In this case, when the hair is set, the hair H can be bent with a large curvature at the protruding tip of the protruding portion 53 (in other words, the apex 53a). This makes it easier to make the split ends E protrude from the bent portion M of the hair H, and makes it easier to cut the split ends E.

[0058] The protrusion 53 has an apex 53a, which is the protruding tip, that is a circular arc surface that is convex toward the holder part 11. In this case, the hair H is less likely to be damaged when it is bent at the apex 53a. To prevent the hair H from being damaged, it is preferable that the radius of curvature of the apex 53a is 1 mm or more. To make it easier to protrude split ends E from the bent part M by bending the hair H with a large curvature, it is preferable that the radius of curvature of the apex 53a is 3 mm or less.

[0059] The blade 13 is disposed so that, when the holder part 11 and the cover part 12 are in close proximity to each other, the cutting edge 13a is located at the same position in the width direction of the protruding part 53 as the top 53a of the protruding part 53. In this case, the cutting edge 13a can easily cut the split ends E.

[0060] The width W1 of each partition 38 is smaller than the width W2 of the opening 37. In this case, when the hair H is pushed into the recessed portion 33 by the protrusion 53, it is possible to prevent the hair H from being pinched between the top 53a of the protrusion 53 and each partition 38.

[0061] Each partition 38 has a generally arc-shaped surface 42 facing the recessed portion 33 when viewed in a cross section perpendicular to the longitudinal direction of the partition 38. In this case, when the hair H is pushed into the recessed portion 33 by the protruding portion 53, the hair H can be further prevented from being pinched between the top 53a of the protruding portion 53 and each partition 38.

[0062] The present invention is not limited to the above embodiment, and may be implemented, for example, as follows.

[0063] In the above embodiment, the protrusion 53 protrudes in a mountain shape toward the holder part 11, but the protrusion may protrude in a plate shape (thin plate shape) toward the holder part 11. In this case, too, when the hair is set and bent at the top of the protrusion, it can be bent with a large curvature. This makes it easier to make split ends protrude from the bent part of the hair, and easier to cut the split ends. However, considering the strength of the protrusion, it is preferable to make the protrusion 53 protrude in a mountain shape as in the above embodiment.

[0064] In the above embodiment, the concave portion 33 is formed between a pair of extending portions 32 extending from the inner surface 11a of the holder portion 11 toward the cover portion 12. However, the pair of extending portions 32 may not be provided on the holder portion 11, and a concave portion that is open on the inner surface 11a may be formed on the holder portion 11.

[0065] In the above embodiment, a plurality of openings 37 are provided in the holder part 11, but only one opening may be provided in the holder part 11. In this case, for example, the opening is formed to extend along the longitudinal direction of the recessed part 33.

[0066] In the above embodiment, the holder part 11 and the cover part 12 are rotatably connected, but for example, the holder part and the cover part may be foldably connected at their base ends via a connecting member (such as a V-shaped connecting member). In this case, the holder part and the cover part can be moved between a close state and a separate state by folding and unfolding the holder part and the cover part. In short, as long as the holder part and the cover part can be moved between a close state and a separate state, the connection configuration between the two may be arbitrary. [Explanation of symbols]

[0067] 10...splitting hair cutter, 11...holder portion, 12...cover portion as displacement portion, 13...blade body, 13a...blade tip, 31...internal space, 33...concave portion, 37...opening, 38...partition portion, 39...inner surface, 39a...inclined surface, 39b...non-inclined surface, 41...step, 53...protrusion, 53a...top.

Claims

1. A split end cutter for cutting split ends caused by splitting of hair, A blade body having a cutting edge for cutting the split ends; A holder portion for holding the blade; a displacement portion supported by the holder portion and provided opposite the holder portion; Equipped with The holder portion is provided with a recessed portion that is open toward the displacement portion, The displacement portion is provided with a protrusion that protrudes toward the holder portion, the displacement portion is relatively displaceable between a first position where the protruding portion enters the recessed portion and a second position where the protruding portion retreats from the recessed portion, The holder portion is provided with an internal space formed on the opposite side to the open side of the concave portion and accommodating the blade, and an opening portion that communicates between the concave portion and the internal space, the blade body is disposed such that the blade tip approaches the protruding portion through the opening when the displacement portion is in the first position, When the displacement portion is displaced to the first position in a state in which the hair is disposed so as to extend between the concave portion and the protruding portion, the hair is pushed into the concave portion by the protruding portion and bent so as to be convex toward the protruding side of the protruding portion, thereby setting the hair in a hair-set state, When the split ends cutter is moved toward the ends of the hair in the hair set state, the split ends protruding from the bent part of the hair and entering the internal space through the opening are cut by the cutting edge.

2. the holder portion has a first opposing surface opposing the displacement portion, the displacement portion has a second opposing surface opposing the holder portion, The recessed portion has a groove shape extending along the first opposing surface, the protrusion extends along the second opposing surface and is disposed along the concave portion when the displacement portion is in the first position, The split end cutter according to claim 1 , wherein the hair is set in the hair-setting state by displacing the displacement portion to the first position with the hair extending in a direction intersecting a longitudinal direction of the protrusion.

3. The blade is disposed such that the blade tip extends in the longitudinal direction of the recessed portion, The split end cutter according to claim 2 , wherein the opening portion is provided in a plurality of portions in a longitudinal direction of the recessed portion.

4. The holder portion is provided with a partition portion between each pair of adjacent openings, the partition portion partitioning the adjacent openings, Each of the partitions has an inner surface facing the internal space, the inner surface of each of the partitions includes an inclined surface inclined with respect to a width direction of the recessed portion, The split end cutter according to claim 3 , wherein a portion of the blade including the cutting edge is disposed along the inclined surface of each of the partitions.

5. the inner surface of each of the partitions includes, in addition to the inclined surface, a non-inclined surface parallel to a width direction of the recessed portion, the inclined surface and the non-inclined surface are adjacent to each other in the width direction, The inclined surface is inclined so as to be displaced toward the concave portion as it approaches the non-inclined surface, so that a step is generated at a boundary between the inclined surface and the non-inclined surface, The split end cutter according to claim 4 , wherein the blade is disposed with the cutting edge in contact with the step of each of the partitions.

6. The blade is disposed with the blade tip facing one side in the width direction of the recessed portion, The split end cutter according to claim 2 , wherein the concave portion is disposed closer to the one side in a width direction of the holder portion.

7. the other side is opposite to the one side in the width direction of the recessed portion, The split end cutter according to claim 6 , wherein the blade is disposed in the holder portion closer to the other side in the width direction of the recessed portion.

8. The split end cutter according to claim 2 , wherein the protruding portion has a cross section perpendicular to the longitudinal direction that is formed into a mountain shape tapering toward a protruding tip.

9. The split end cutter according to claim 8 , wherein the blade is arranged such that, when the displacement portion is in the first position, the cutting edge is located at the same position in the width direction as the top of the protrusion.

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