Hair implantation device

Abstract

To provide a hair implantation device which allows a hair implantation needle section to pass through a hole in a hair implantation net more easily than conventional ones and achieves high hair implantation accuracy.SOLUTION: The hair implantation device comprises: a net transport section which transports the hair implantation net; a hair material supply section which supplies hair material; a hair implantation needle section which implants the hair material supplied from the hair material supply section into the hair implantation net; and an adjustment mechanism which adjusts the position of the holes in the hair implantation net in a direction intersecting the transport direction of the hair implantation net so that the hair implantation needle section passes through the holes in the hair implantation net, the adjustment mechanism having a support roll which supports the hair implantation net. The support roll includes: a main body section; a first engagement section which can engage with the hair implantation net; and first biasing means which biases the first engagement section in a direction away from the main body section in the axial direction of the support roll.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a hair implantation device for implanting hair material into a hair implantation net. [Background technology]

[0002] 2. Description of the Related Art Hair implantation devices that tie hair materials for implantation to a hair implantation net are known (for example, see Patent Document 1). In the hair implantation device of Patent Document 1, a hair implantation hook is hooked onto the weft of a hair implantation net supported by an eccentric, and the eccentric is rotated in this state to insert the hair implantation hook between adjacent holes, sandwiching the weft of the hair implantation net. After the hair implantation hook is hooked onto a hair material, it is possible to pass the hair material through the adjacent hole and implant the hair into the hair implantation net by pulling out the hair material together with the hooked hair material. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-125569 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the hair implantation device of Patent Document 1, the hair implantation net supported by the eccentric is subjected to tension in the transport direction, and the hair implantation hook is inserted into the hole to hook the weft thread. However, since the hair implantation net has contractility, if the tension during transport is high, the hole in the hair implantation net will be stretched in the transport direction when the hair implantation hook passes through it, resulting in the hair implantation hook coming into contact with the weft thread and not passing through the hole in the hair implantation net accurately, or even destroying the weft thread.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a hair implantation device that allows the hair implantation needles to be passed through holes in a hair implantation net more easily than in the past, thereby achieving high hair implantation accuracy. [Means for solving the problem]

[0006] One aspect of the present invention for solving the above-mentioned problems is a hair implantation device comprising a net transport section for transporting a hair implant net, a hair material supply section for supplying hair material, a hair implantation needle section for implanting the hair material supplied from the hair material supply section into the hair implantation net, and an adjustment mechanism for adjusting the position of a hole in the hair implantation net in a direction intersecting the transport direction of the hair implantation net so that the hair implantation needle section passes through the hole in the hair implantation net, the adjustment mechanism having a support roll for supporting the hair implantation net, the support roll having a main body section, a first engagement section capable of engaging with the hair implantation net, and a first biasing means for biasing the first engagement section in a direction away from the main body section in the axial direction of the support roll.

[0007] According to this aspect, an adjustment mechanism is provided for adjusting the position of the hole in the hair implantation net so that the hair implantation needle part passes through the hole in the hair implantation net, so that it is easier to pass the hair implantation needle part through the hole in the hair implantation net than in the conventional method, and the accuracy of hair implantation is high. According to this aspect, the first engagement portion capable of engaging with the hair implant net can be urged in a direction away from the main body portion in the axial direction of the support roll by the first urging means, so that tension can be applied to the hair implant net in the axial direction, widening the holes in the hair implant net and making it easier to pass the hair implant needle portion through the holes in the hair implant net.

[0008] In a preferred aspect, the hair implantation needle section implants the hair material into the hair implantation net on the support roll in a state in which the hair implantation net is supported by the support roll.

[0009] In a preferred aspect, the first engagement portion is capable of engaging with the hair-implanted net in the axial direction of the support roll by being inserted into a hole in the hair-implanted net, and the end of the first engagement portion in the insertion direction is rounded.

[0010] In a preferred aspect, the support roll has a plurality of engaging pieces having the first engaging portions and spacing maintaining pieces that maintain the spacing between adjacent engaging pieces, and is capable of engaging with the hair-implanted net in the axial direction by inserting the first engaging portions of each engaging piece through corresponding holes in the hair-implanted net.

[0011] In a preferred aspect, at least one of the plurality of engagement pieces is rotatable in the circumferential direction of the support roll.

[0012] In a preferred aspect, the support roll has a second engagement portion, the first engagement portion engaging with a first end side of the hair-implanted net in the cross direction, and the second engagement portion engaging with a second end side of the hair-implanted net in the cross direction.

[0013] In a preferred aspect, the support roll includes a second biasing means for biasing the second engagement portion in a direction away from the first engagement portion in the axial direction of the support roll.

[0014] The above-described aspects may be made dependent on each other, some of the configurations may be cited, or some of the configurations may be substituted for each other, as long as they are included in the technical scope of the present invention. Effect of the Invention

[0015] According to the present invention, the hair implantation needle portion can pass through the holes in the hair implantation net more easily than in the past, and the accuracy of hair implantation is high. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is an explanatory diagram of a hair implantation device according to a first embodiment of the present invention, where (a) is a cross-sectional view showing a schematic view of the hair implantation device, and (b) is a cross-sectional view of the hair implantation device of (a) as viewed from direction A. [Diagram 2] FIG. 2 is a perspective view of an eccentric part of the hair implantation device of FIG. 1. [Diagram 3] 3A and 3B are explanatory views of the main part of the eccentric part in FIG. 2, in which (a) is an exploded perspective view of the main part, and (b) is an exploded perspective view of the engagement part in (a). [Figure 4] 2 is a perspective view of an eccentric part of the hair implantation device of FIG. 1 in a state where the hair implantation net is supported. [Diagram 5] 2 is an explanatory diagram of the hair-implanting operation of the hair-implanting device of FIG. 1, which is carried out in the order of (a) and (b), and (a) and (b) each transition from imaginary lines to solid lines. [Figure 6] 5 in the hair-implanting operation of the hair-implanting device of FIG. 1, which is performed in the order of (a) and (b), and (a) and (b) each transition from imaginary lines to solid lines. [Figure 7] 1. This is an explanation of the hair-implanting operation of the hair-implanting device in FIG. 1, which follows FIG. 6. This is performed in the order of (a) and (b), and (a) and (b) each transition from a virtual line to a solid line. [Figure 8] 8 is an explanation of the hair-implanting operation of the hair-implanting device in FIG. 1, which follows FIG. 7, and is carried out in the order of (a) and (b), with (a) and (b) each transitioning from a virtual line to a solid line. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described in detail.

[0018] The hair implantation device 1 of the first embodiment of the present invention is an automatic hair implantation device that automatically implants hair material 101 into a hair implant net 100, and as shown in Figure 1, is equipped with an eccentric section (hereinafter simply referred to as the eccentric section 2), a hair implant hook section 3, a pull-out hook section 5, a hair material supply section 6, a guide roll 7, a hair material pull-in section 8, a hair material drop-in section 10, and a conveying roll 11.

[0019] (Eccentric part 2) As shown in FIG. 2, the eccentric portion 2 is an elongated body extending in the width direction W (axial direction L), and includes a support portion 20 and rotating shaft portions 21a and 21b. The eccentric portion 2 is a rotational force conversion member in which the rotating shaft portions 21a and 21b are misaligned with the central axis of the support portion 20 and convert the rotational motion into simple harmonic motion, and is a support roll that supports the flocked net 100.

[0020] The support portion 20 is a portion that supports the hair-implanted net 100, and as shown in FIG. 2, includes a main body portion 22, fixed shaft portions 23a, 23b, engagement portions 25a, 25b (first engagement portion, second engagement portion), biasing means 26a, 26b (first biasing means, second biasing means), and fixed portions 27a, 27b. The support portion 20 constitutes an adjustment mechanism that adjusts the position of the hole 120 in the hair-implanted net 100 so that the hair-implanted hook portion 3 passes through the hole 120 in the hair-implanted net 100 by forcing the engagement portions 25a, 25b outward relative to the main body portion 22 in the axial direction L (a cross direction (orthogonal direction) to the conveying direction T of the hair-implanted net 100) using the forcing means 26a, 26b.

[0021] The main body 22 is a columnar portion extending in the axial direction L, and has a recess 28 that is recessed in part of the outer periphery. The recess 28 is a notched groove into which a part of the hair implantation hook part 3 can be inserted, and is a recessed groove formed over the entire extension direction (axial direction L) of the main body part 22.

[0022] As shown in FIG. 2, the fixed shaft portions 23a, 23b are protruding shaft portions that protrude outward from the end face of the main body portion 22 in the axial direction L, and are connecting shaft portions that can pivotally connect the engagement portions 25a, 25b, the biasing means 26a, 26b, and the fixed portions 27a, 27b, respectively. The fixed shaft portions 23a and 23b are provided at their tips in the protruding direction with fastening portions (not shown) that can be fastened to the fixed portions 27a and 27b.

[0023] The engaging portions 25a and 25b are portions that are inserted into holes 120 of the flocked net 100 and can engage with the net threads 121, as shown in FIG. As shown in FIG. 3, the engaging portions 25a, 25b each include a plurality of engaging pieces 30 and a plurality of space maintaining pieces 31 which are stacked in the axial direction L.

[0024] The engagement piece 30 is an annular plate-like piece that can be attached around the fixed shaft portions 23a and 23b, and includes a base portion 35, a protrusion 36, and an insertion hole 37, as shown in FIG. The base portion 35 is an annular portion, and has an outer diameter equal to the minimum inclusive circle diameter of the main body portion 22 when viewed in the axial direction L. The protrusions 36 are cylindrical projections that protrude radially from the outer surface of the base 35, and have rounded tips. In other words, the protrusions 36 do not have sharp tips, and are therefore less likely to be damaged even if they come into contact with the flocked net 100. The protrusions 36 are arranged at intervals in the circumferential direction of the fixed shaft portions 23a, 23b. The insertion hole 37 is a through-hole that passes through the center portion of the base portion 35 in the thickness direction, and allows the fixed shaft portions 23a, 23b to be inserted therethrough.

[0025] The spacing maintaining piece 31 is an annular plate-like piece that can be attached around the fixed shaft portions 23a, 23b, as shown in Figure 3, and is a plate-like piece that is interposed between adjacent engagement pieces 30, 30 in the axial direction L to maintain the spacing between the engagement pieces 30, 30.

[0026] The gap maintaining piece 31 includes a base portion 38 and an insertion hole 39 . The base portion 38 is an annular portion, and when viewed in the axial direction L, its outer diameter is equal to that of the base portion 35. The insertion hole 39 is a through-hole that passes through the center portion of the base portion 38 in the thickness direction, and allows the fixed shaft portions 23a, 23b to be inserted therethrough.

[0027] The engaging portions 25a, 25b are equally spaced in the axial direction L by sandwiching the space maintaining piece 31 between the engaging pieces 30, and the spaces between adjacent protrusions 36, 36 in the axial direction L are also equally spaced. The engaging portions 25a, 25b have an inner diameter of the insertion hole 37 of each engaging piece 30 and an inner diameter of the insertion hole 39 of each spacing maintaining piece 31 that are larger than the outer diameter of the fixed shaft portions 23a, 23b, so that each engaging piece 30 and each spacing maintaining piece 31 can rotate in the circumferential direction of the fixed shaft portions 23a, 23b.

[0028] The biasing means 26a, 26b are biasing members that bias the engaging portions 25a, 25b outward in the axial direction L, and specifically, are elastic members that can be supported by the fixed shaft portions 23a, 23b, such as coil springs. That is, the biasing means 26a, 26b are elastically deformable, and constantly bias the engaging portions 25a, 25b outward in the axial direction L by their restoring force.

[0029] The fixing portions 27a and 27b are restricting portions that restrict the outward movement of the engagement portions 25a and 25b in the axial direction L against the biasing forces of the biasing means 26a and 26b. The fixing portions 27a and 27b are each composed of a pair of clamping portions 32 and 33.

[0030] The inner clamping portion 32 includes a clamping body portion 40 and an insertion hole 41 . The clamping main body 40 is an annular portion, and when viewed in the axial direction L, the outer diameter is equal to the minimum inclusive circle diameter of the main body 22 . The insertion hole 41 is a through-hole that passes through the central portion of the clamping body 40 in the thickness direction, and allows the fixed shaft portions 23a, 23b to be inserted therethrough.

[0031] The outer clamping portion 33 has a clamping body portion 42 and a fastening hole 43 . The clamping body 42 is a cylindrical portion, and when viewed in the axial direction L, its outer diameter is equal to the minimum inclusive circle diameter of the body 22 . The fastening hole 43 is a bottomed hole whose bottom is on the outside of the central portion of the clamping main body 42 in the axial direction L, and can be fastened to the fixed shaft portions 23a, 23b.

[0032] The fixed portions 27a, 27b have an outer clamping portion 33 fixed integrally to the fixed shaft portions 23a, 23b, and by clamping the engaging portions 25a, 25b between the inner clamping portion 32 and the outer clamping portion 33, the outward movement of the engaging portions 25a, 25b in the axial direction L can be restricted.

[0033] The rotating shafts 21a and 21b are shafts that serve as the center of rotation of the eccentric portion 2. The rotating shaft portions 21a and 21b extend outward in the axial direction L from the fixed portions 27a and 27b of the main body portion 22, and are provided at positions where their central axes are offset from the central axes of the fixed shaft portions 23a and 23b.

[0034] The eccentric portion 2 is capable of changing its position between a first position and a second position by rotating about the rotation shaft portions 21a and 21b. The first position is a facing position in which the recess 28 of the main body 22 is located on the side of the tufting hook part 3 and faces the tufting hook part 3. The second position is a vertical position in which the recess 28 of the main body 22 is located on the hair material supplying part 6 side and faces upward.

[0035] (Hair transplant hook part 3) The hair implantation needle part 3 is a hair implantation needle part for implanting the hair material 101 into the hair implantation net 100, and is a rod-like body with a claw-shaped tip. As shown in FIG. 1, the hair implantation hook portion 3 is a latch hook needle having a needle shaft portion 50, a hook portion 51, and a latch portion 52.

[0036] (Drawer hook part 5) The pulling hook portion 5 is a hook that pulls out the hair material 101 from the hair material supply portion 6. The pull-out hook portion 5 is a rod-like body having a claw-shaped tip, and includes a needle shaft portion 60 and a hook portion 61 as shown in FIG.

[0037] (Hair material supply section 6) The hair material supply section 6 is a hair material storage section that stores the hair material 101 to be implanted in the hair implant net 100, and as shown in Figure 1, is provided with an extraction hole 55 for removing and supplying the hair material 101 stored in the bottom part.

[0038] (Induction Roll 7) As shown in FIG. 1, the guide roll 7 has a groove 70 on a part of its outer circumferential surface, and a part of the hair material 101 pulled out from the hair material supply section 6 by the pulling hook section 5 passes through the groove 70, thereby adjusting the position in the axial direction L to fall within a predetermined range.

[0039] (Hair material inlet part 8) The hair material drawing section 8 is a drawing bar that draws the hair material 101 drawn from the hair material supply section 6 by the drawing hook section 5 upstream in the transport direction T from the implantation position of the hair implantation net 100.

[0040] (Hair material recess 10) The hair material dropping section 10 is a dropping bar that drops the hair material 101 pulled out from the hair material supply section 6 by the pulling hook section 5 below the implantation position of the hair implantation net 100.

[0041] (Transport roll 11) The transport roll 11 is a support roll that supports the implanted net 100 so that the implanted net 100 passes over the eccentric portion 2, and is a net transport portion that transports the implanted net 100 in the transport direction T by rotating.

[0042] (Hair transplant net 100) The flocked net 100 is an expandable net formed in a mesh shape by a plurality of net threads 121 as shown in FIG. The flocked net 100 of this embodiment has a honeycomb structure and is stretchable in the conveying direction T and the width direction W. The hole 120 is a hexagonal hole when viewed in a plan view, and each side is formed by a net thread 121.

[0043] (Hair Material 101) The hair material 101 is a filament to be implanted in the hair implant net 100. The hair material 101 may be artificial hair made of resin fibers or the like, human hair, animal hair, or the like. The hair material 101 of this embodiment is bundled together and used as a hair bundle.

[0044] Next, the positional relationship of each part of the hair implantation device 1 of this embodiment will be described. Note that the eccentric part 2 will be described based on the first position in which the recess 28 of the main body part 22 in FIG. 1 is located on the hair implantation hook part 3 side and faces the hair implantation hook part 3 side.

[0045] In the hair implantation device 1, as shown in FIG. 1, a hair implantation net 100 is suspended between an eccentric section 2 and each of transport rolls 11. The eccentric portion 2 has rotating shaft portions 21a and 21b journaled thereon, and is rotatable in the circumferential direction about the rotating shaft portions 21a and 21b. As shown in FIG. 2, the eccentric portion 2 has the main body portion 22 located between the engaging portions 25a, 25b in the width direction W, and the flocked net 100 is suspended across the main body portion 22 and the engaging portions 25a, 25b as shown in FIGS.

[0046] In the axial direction L, the eccentric portion 2 has the protrusion 36 of the first engagement portion 25a engaging with the hole 120 on the first end side of the hair-implanted net 100, and the protrusion 36 of the second engagement portion 25b engaging with the hole 120 on the second end side (the end opposite the first end) of the hair-implanted net 100. The eccentric portion 2 is biased by biasing means 26a, 26b so that the engagement portions 25a, 25b engaged with the hair-implanted net 100 move away from the main body portion 22 in the width direction W, and the tension is adjusted so that the positions of the holes 120 in the hair-implanted net 100 pass through a predetermined position. That is, as shown in Fig. 4, the eccentric portion 2 has some protrusions 36 of the engagement portions 25a, 25b inserted into the holes 120 in the hair-implanted net 100, and the hair-implanted net 100 is biased in the width direction W by the biasing means 26a, 26b via the protrusions 36. In this way, when the convex portion 36 of the eccentric portion 2 is inserted into the hole 120 of the hair-implanted net 100 as shown in Figure 4, the convex portion 36 expands the hole 120 of the hair-implanted net 100 in the width direction W, and adjusts the position in the width direction W so that the hole 120 of the hair-implanted net 100 is located at the projection portion P (projection surface of the axial direction L of the needle shaft portion 50) in the traveling direction of the hair-implanted hook needle portion 3.

[0047] As shown in FIG. 1, the hair implantation hook portion 3 is in a horizontal position extending horizontally, and the hook portion 51 faces the recess 28 of the main body portion 22 in the front-rear direction X. The pulling hook part 5 has a hook part 61 at the tip located on the upper side, and is in a vertical position extending vertically, and faces the extraction hole 55 of the hair material supply part 6 in the height direction Y (up-down direction). The hair material intake portion 8 is located below the hair material supply portion 6 and above the eccentric portion 2 in the height direction Y.

[0048] Next, the hair implantation operation of the hair implantation device 1 of this embodiment will be described.

[0049] First, as shown in FIG. 5(a), the hair implantation operation of the hair implantation device 1 is to raise the withdrawal hook portion 5 to hook onto the hair material 101 in the hair material supply portion 6, then to lower it to the original reference position to pull out the middle portion of the hair material 101 in the hair material supply portion 6 downward through the removal hole 55, and to shift the withdrawal hook portion 5 from the reference position in the axial direction L of the eccentric portion 2 (hair material pulling-out operation).

[0050] At this time, the hair material 101 in the hair material supply unit 6 is pulled out in a "V" shape by the hook portion 61 of the pulling-out hook portion 5, as shown in Fig. 5(a), and the engagement portion (hooking portion) with the hook portion 61 of the pulling-out hook portion 5 is lower than the apex of the eccentric portion 2. In addition, the hair material 101 is divided into a proximal hair portion 110 and a distal hair portion 111 based on the engagement portion (folded back portion) with the hook portion 61 of the pulling-out hook portion 5.

[0051] In addition, in a separate operation from the hair material pulling-out operation, as shown by the arrow in Fig. 5(a), the hair implantation hook part 3 is advanced toward the eccentric part 2, and the hook part 51 of the hair implantation hook part 3 is passed through the hole 120a of the hair implantation net 100 on the eccentric part 2 and placed in the recess 28 of the eccentric part 2. Then, the hair implantation hook part 3 is retracted from the recess 28 of the eccentric part 2 and raised (net hooking operation).

[0052] At this time, the hair implantation hook portion 3 retracts and rises, hooking the net thread 121, which is the weft thread constituting the edge of the hole 120a of the hair implantation net 100 on the eccentric portion 2, with the hook portion 51 and lifting it upward.

[0053] Next, with the hair implantation hook portion 3 hooked onto the net thread 121, the eccentric portion 2 is rotated 90 degrees in the forward direction R1 as shown by the arrow in Figure 5 (b) to change its position from the first position to the second position, and the hook portion 51 of the hair implantation hook portion 3 is removed from within the recess 28 (eccentric rotation operation).

[0054] At this time, as the eccentric portion 2 rotates, the hair implantation hook portion 3 is inserted across the adjacent holes 120a, 120b, sandwiching the net thread 121 of the hair implantation net 100.

[0055] Next, as shown in Figure 6(a), the hair implantation hook portion 3 is further advanced and rotated 90 degrees in the circumferential direction, and the extraction hook portion 5 is moved so that the hook portion 51 of the hair implantation hook portion 3 hooks onto the proximal hair portion 110 (first hair material hooking operation).

[0056] At this time, as the hair implantation hook portion 3 advances, a part of the needle shaft portion 50 is inserted across the adjacent holes 120a, 120b, sandwiching the net thread 121 of the hair implantation net 100.

[0057] Next, the hair implantation hook portion 3 is retracted as shown by the arrow in Figure 6 (a) and the extraction hook portion 5 is returned to its original reference position, and then the hair implantation hook portion 3 is rotated 90 degrees in the circumferential direction so that the hook portion 51 faces upward, and is then pulled out from the hair implantation net 100 (hair material pulling out operation).

[0058] At this time, the latch portion 52 of the hair implantation hook part 3 is closed by the net thread 121 of the hair implantation net 100, and the hair implantation hook part 3 is pulled out from the hair implantation net 100 while gripping the proximal hair part 110 of the hair material 101. In addition, the middle part of the proximal hair part 110 passes through the holes 120a, 120b of the hair implantation net 100, forming the annular part 112 and exposed from the hair implantation net 100 to the hair implantation hook part 3 side.

[0059] Next, as shown in Figure 6(b), the hair implantation hook portion 3 is rotated 360 degrees to twist the annular portion 112 of the hair material 101, and the hair implantation hook portion 3 is raised as shown by the arrow in Figure 6(b) and shifted in the axial direction L of the eccentric portion 2 (hair material twisting operation).

[0060] Next, as shown in Figure 7(a), the hair implant hook part 3 is advanced beyond the proximal hair part 110, then the hair implant hook part 3 is moved back slightly and rotated 90 degrees in the circumferential direction, the hair implant hook part 3 is shifted in the axial direction L of the eccentric part 2 and returned to a position overlapping with the hair material 101, and the tip of the hair implant hook part 3 is hooked onto the proximal hair part 110 of the hair material 101 (second hair material hooking operation).

[0061] Next, as shown in Figure 7(b), the hair implantation hook portion 3 is further retracted and rotated 90 degrees so that the hook portion 51 faces upward, and the engagement portion of the hair material 101 with the hair implantation hook portion 3 is passed through the annular portion 112 (hair material retracting operation).

[0062] At this time, the latch portion 52 of the hair implantation hook portion 3 is closed by the annular portion 112 of the hair implantation net 100.

[0063] Next, the extraction hook portion 5 is raised and shifted away from the position of the hair material 101 to release the engagement between the extraction hook portion 5 and the hair material 101, and as shown in Figure 8 (a), the hair implantation hook portion 3 is rotated 720 degrees and further moved backward to pass the distal hair portion 111 through the annular portion 112, and the extraction hook portion 5 is lowered (hair material twisting operation).

[0064] Next, as shown in Figure 8 (b), the distal hair section 111 is pulled in by the hair material pulling-in section 8 and flows upstream in the transport direction T, the eccentric section 2 is rotated 90 degrees in the reverse direction R2 to change its position from the second position to the first position, and the hair material is dropped by the hair material dropping section 10 (dropping operation).

[0065] According to the hair implantation device 1 of this embodiment, the position of the hole 120 of the hair implantation net 100 in the axial direction L (width direction W) is adjusted by the engagement portions 25a, 25b and the biasing means 26a, 26b so that the hair implantation hook portion 3 passes through the hole 120 of the hair implantation net 100. This makes it easier for the hair implantation hook portion 3 to pass through the hole 120 of the hair implantation net 100 than in the conventional method, resulting in high hair implantation accuracy. According to the hair implantation device 1 of this embodiment, it is equipped with biasing means 26a, 26b that bias the engagement portions 25a, 25b in a direction away from the main body portion 22 in the axial direction L of the eccentric portion 2, so that tension can be applied to the hair implantation net 100 in the axial direction L, causing the holes 120 in the hair implantation net 100 to widen, making it easier to pass the hair implantation hook portion 3 through the holes 120 in the hair implantation net 100.

[0066] According to the hair implantation device 1 of this embodiment, the hair implantation hook part 3 implants the hair material 101 into the hair implantation net 100 on the eccentric part 2 while the hair implantation net 100 is supported by the eccentric part 2. Therefore, tension can be applied to the hair implantation net 100 at a position close to the hair implantation hook part 3, and the position of the hole 120 of the hair implantation net 100 can be adjusted, so that it is easier to pass the hair implantation hook part 3 through the hole 120 of the hair implantation net 100.

[0067] According to the hair implantation device 1 of this embodiment, the engagement portions 25a, 25b are capable of engaging with the mesh thread 121 of the hair implantation net 100 in the axial direction L of the eccentric portion 2 by inserting the convex portion 36 into the hole 120 of the hair implantation net 100, and since the tip portion of the convex portion 36 in the insertion direction is rounded, even if the convex portion 36 comes into contact with the mesh thread 121 of the hair implantation net 100, the convex portion 36 is easily guided into the hole 120, and the hair implantation net 100 is less likely to tear.

[0068] According to the hair implantation device 1 of this embodiment, the eccentric portion 2 has a plurality of engagement pieces 30 and a spacing maintaining piece 31 that maintains the spacing between adjacent engagement pieces 30, 30, and can engage with the hair implanted net 100 in the axial direction L by inserting the engagement portions 25a, 25b of each engagement piece 30 into corresponding holes 120 in the hair implanted net 100. Therefore, the engagement portions 25a, 25b can be engaged with the hair implanted net 100 at a plurality of points, the biasing force of the biasing means 26a, 26b is easily distributed, and the hair implanted net 100 is less likely to tear.

[0069] According to the hair implantation device 1 of the present embodiment, at least one of the multiple engagement pieces 30 is rotatable in the circumferential direction of the eccentric portion 2. Therefore, the protrusions 36 of each engagement piece 30 can be aligned with the holes 120 of the hair implantation net 100, and the engagement parts 25a, 25b can be easily inserted into the holes 120 of the hair implantation net 100 of various shapes.

[0070] According to the hair implantation device 1 of this embodiment, the first engagement portion 25a of the eccentric portion 2 engages with the first end portion of the hair implantation net 100 in the axial direction L (crossing direction), and the second engagement portion 25b engages with the second end portion (the end portion opposite to the first end portion) of the hair implantation net 100. Therefore, the hair implantation net 100 is expanded in the axial direction L, and the hair implantation hook portion 3 can more easily pass through the hole 120 of the hair implantation net 100.

[0071] According to the hair implantation device 1 of this embodiment, the eccentric portion 2 includes a second biasing means 26b that biases the second engagement portion 25b in a direction away from the first engagement portion 25a in the axial direction L. Therefore, a well-balanced tension can be applied to the hair implantation net 100 in the axial direction L (width direction W).

[0072] In the above embodiment, the recess 28 is a cutout, but the present invention is not limited to this. As long as the recess 28 is recessed with respect to the outer surface, it may be a through hole or a bottomed hole.

[0073] In the above embodiment, the hair material 101 is pulled out from the hair material supply unit 6 with the hook portion 61 of the pull-out hook unit 5, and then the hook portion 51 of the hair implant hook unit 3 is hooked onto the hair implant net 100 to rotate the eccentric unit 2, but the present invention is not limited to this. For example, the hook portion 51 of the hair implant hook unit 3 may be hooked onto the hair implant net 100 to rotate the eccentric unit 2, and then the hair material 101 may be pulled out from the hair material supply unit 6 with the hook portion 61 of the pull-out hook unit 5.

[0074] In the above embodiment, the eccentric unit 2 is provided with an adjustment mechanism that uses the biasing means 26a, 26b to bias the engagement units 25a, 25b outward relative to the main unit 22, but the present invention is not limited to this. The adjustment mechanism may be provided on another roll. For example, the adjustment mechanism may be provided on the transport roll 11.

[0075] In the above embodiment, the protrusions 36 are cylindrical protrusions, but the present invention is not limited to this. The protrusions 36 may be polygonal prisms such as triangular prisms, quadrangular prisms, pentagonal prisms, and hexagonal prisms.

[0076] In the above-described embodiment, the fixed shaft portions 23a, 23b are fastened to the outer clamping portions 33 of the fixed portions 27a, 27b, so that the engaging pieces 30 and the space maintaining pieces 31 constituting the engaging portions 25a, 25b are clamped and integrated between the inner clamping portion 32 and the outer clamping portion 33, but the present invention is not limited to this. For example, the inner clamping portion 32 and the outer clamping portion 33 may be engaged with each other to clamp the engaging pieces 30 and the space maintaining pieces 31 constituting the engaging portions 25a, 25b, so that the engaging pieces 30 and the space maintaining pieces 31 are integrated.

[0077] In the above embodiment, each of the engaging portions 25a, 25b is provided with four engaging pieces 30, but the present invention is not limited to this. Each of the engaging portions 25a, 25b may be provided with one to three engaging pieces 30, or each of the engaging portions 25a, 25b may be provided with five or more engaging pieces 30.

[0078] In the above embodiment, the engagement pieces 30 and the spacing maintaining pieces 31 constituting the engagement parts 25a, 25b are rotatable around the fixed shaft parts 23a, 23b, but the present invention is not limited to this. The engagement pieces 30 and the spacing maintaining pieces 31 may be non-rotatable around the fixed shaft parts 23a, 23b, i.e., may be fixed integrally to the fixed shaft parts 23a, 23b.

[0079] In the above embodiment, the engagement piece 30 and the interval maintaining piece 31 constituting the engagement parts 25a, 25b are rotatable around the fixed shaft parts 23a, 23b, respectively, but the present invention is not limited to this. For example, the engagement parts 25a, 25b may be configured such that only the engagement piece 30 is rotatable relative to the fixed shaft parts 23a, 23b, and the interval maintaining piece 31 is non-rotatable.

[0080] In the above embodiment, the recess 28 of the support portion 20 of the eccentric portion 2 is formed over the entire extension direction of the main body portion 22, but the present invention is not limited to this. The recess 28 of the support portion 20 of the eccentric portion 2 may be formed only at a position corresponding to the hair implantation hook portion 3.

[0081] In the above-described embodiments, each component may be freely substituted or added between the respective embodiments as long as it falls within the technical scope of the present invention. [Explanation of symbols]

[0082] 1 Hair transplant device 2 Eccentric section (support roll) 3 Hair transplant hook part (hair transplant needle part) 6 Hair material supply section 11 Transport roll (net transport section) 20 Support part (adjustment mechanism) 22 Main body 25a First engaging part 25b Second engaging part 26a First biasing means 26b Second biasing means 30 Engagement piece 31 Spacing maintenance piece 100 Hair transplant net 101 Hair materials 120 holes

Claims

1. a net conveying unit for conveying the flocked net; a hair material supplying unit for supplying a hair material; a hair-implanting needle unit for implanting the hair material supplied from the hair material supply unit into the hair-implanting net; an adjustment mechanism for adjusting the position of the hole in the hair-implanted net in a direction intersecting the transport direction of the hair-implanted net so that the hair-implanting needle portion passes through the hole in the hair-implanted net; The adjustment mechanism has a support roll that supports the flocked net, The hair implantation device comprises a main body portion, a first engagement portion capable of engaging with the hair implantation net, and a first biasing means for biasing the first engagement portion in a direction away from the main body portion in the axial direction of the support roll.

2. The hair implantation device according to claim 1 , wherein the hair implantation needle unit implants the hair material into the hair implantation net on the support roll while the hair implantation net is supported by the support roll.

3. the first engagement portion is capable of engaging with the flocking net in an axial direction of the support roll by being inserted into a hole in the flocking net, The hair implantation device according to claim 1 or 2, wherein the first engagement portion has a rounded end in the insertion direction.

4. The hair implantation device described in claim 1 or 2, wherein the support roll has a plurality of engaging pieces having the first engaging portion and a spacing maintaining piece that maintains the spacing between adjacent engaging pieces, and is capable of engaging with the hair implantation net in the axial direction by inserting the first engaging portion of each engaging piece into a corresponding hole in the hair implantation net.

5. The hair implantation device according to claim 4 , wherein at least one of the plurality of engagement pieces is rotatable in a circumferential direction of the support roll.

6. The support roll has a second engagement portion, The first engagement portion is engaged with a first end side of the flocked net in the cross direction, The hair implantation device according to claim 1 or 2, wherein the second engagement portion engages with a second end side of the hair implantation net in the cross direction.

7. The hair implantation device according to claim 6 , wherein the support roll is provided with a second biasing means for biasing the second engagement portion in a direction away from the first engagement portion in the axial direction of the support roll.

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