Tweezers

Abstract

To provide tweezers making it possible to easily remove even a relatively short thorn without damaging a skin.SOLUTION: Tweezers 10 comprise a tweezer body 20 and a pressure adjustment member 30 having a pressing part 53 for pressing against a skin. The pressure adjustment member 30 further includes upper and lower support bodies 40 and 50 through which a shaft 28 extending downward from the tweezer body 20 is inserted, a helical compression spring 60 disposed in a resilient state on the upper and lower support bodies 40 and 50, and a lid 70 into which a lower end of the shaft 28 is inserted. The pressing part 53 includes a leg part 54 extending downward from the lower support body 50, and an annular part 56 located at a lower end of the leg part 54, where energizing force of the helical compression spring 60 can be adjusted by rotating the upper support body 40.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a thorn removal tool for removing thorns that have penetrated the skin. [Background technology]

[0002] For example, Patent Document 1 discloses a stinger removal tool that includes a pin for removing stingers and a magnifying glass for magnifying the stinger when removing the stinger. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 60-144407 Summary of the Invention [Problem to be solved by the invention]

[0004] According to the thorn removal tool disclosed in Patent Document 1, the pin can be inserted into the skin while the part of the skin where the thorn has penetrated is magnified using a magnifying glass, making it easier to remove the thorn.

[0005] However, with such thorn removal tools, it is difficult to find the location where the thorn has entered the skin, and there is a risk of the pin injuring the skin when removing short thorns.

[0006] The present invention has an objective of improving upon the conventional technology and provides a thorn removal tool that can easily remove even relatively short thorns without damaging the skin. [Means for solving the problem]

[0007] In order to solve the above technical problems, the present invention relates to a pricking tool including a pricking body having a pair of arms with up and down directions and clamping portions located at the tips.

[0008] The pricking tool of the present invention is equipped with a pressure adjustment member located between the pair of arms and having a pressing portion for pressing the skin, the pressure adjustment member further having upper and lower supports inserted into an axis extending downward from the pricking body, a compression coil spring arranged in a resiliently loaded state in the upper and lower supports, and a lid portion into which the lower end of the axis is inserted, the pressing portion having legs extending downward from the lower support and an annular portion located at the lower end of the legs, and the biasing force of the compression coil spring can be adjusted by rotating the upper support. Effect of the Invention

[0009] With the pricking tool of the present invention, the force of the compression coil spring can be adjusted by rotating the lower support in the pressure adjustment member, and by moving the lower support downwards, the pressure force is increased and the area of ​​skin surrounded by the annular portion is raised, making it possible to easily remove even relatively short thorns. [Brief description of the drawings]

[0010] The drawings show specific embodiments of the piercing tool of the present invention, including essential features of the invention as well as alternative and preferred embodiments. [Figure 1] FIG. 2 is a perspective view of the piercing tool according to the present invention. [Diagram 2] Front view of the stab remover. [Diagram 3] (A) A side view of the piercing tool. (B) A cross-sectional view taken along line III(B)-III(B). [Figure 4] FIG. [Diagram 5] 5A is a cross-sectional view taken along line V(A)-V(A) in Fig. 2. FIG. 5B is a cross-sectional view similar to Fig. 5A after a pressing operation. [Figure 6] FIG. 13 is a diagram showing an example of how the stab remover is used. [Figure 7] FIG. 11 is a diagram showing an example of another usage state of the pricking tool. [Figure 8] A diagram showing how to remove thorns using a thorn remover. [Figure 9]1A is a partial enlarged view of a pressing portion of an example of an embodiment of the pricking tool, and FIG. 1B is a partial enlarged view of a pressing portion of an example of another embodiment of the pricking tool. [Figure 10] FIG. 13 is a perspective view of an example of yet another embodiment of the pricking tool. [Figure 11] FIG. 11 is an exploded perspective view of the piercing tool in the embodiment shown in FIG. [Figure 12] FIG. 13 is a perspective view of an example of yet another embodiment of the pricking tool. [Figure 13] FIG. 13 is an exploded perspective view of the piercing tool in the embodiment shown in FIG. 12. [Figure 14] FIG. 13 is a perspective view of an example of yet another embodiment of the pricking tool. [Figure 15] FIG. 15 is a diagram showing the use of the piercing tool in the embodiment shown in FIG. 14. [Figure 16] FIG. 13 is a perspective view of an example of yet another embodiment of the pricking tool. [Figure 17] FIG. 17 is a diagram showing the use of the piercing tool in the embodiment shown in FIG. 16. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the piercing tool 10 according to the present invention will be described with reference to the drawings.

[0012] 1 to 4, the pricking tool 10 according to the present invention has an up-down direction Y, a lateral direction X and a front-rear direction Z, and includes a pricking body 20 and a pressure adjustment member 30. The pricking tool 10 further has a longitudinal center line P that divides the dimension in the lateral direction X into two equal parts.

[0013] The piercing body 20 has a head 21, an arm 22 extending downward from the head 21, and a clamping part 25 located at the tip (lower edge) of the arm 22. A cylindrical fixing part 26 is located on the inner surface of the head 21, and a shaft part 28 that is extendable and contractible in the vertical direction Y is attached to the fixing part 26.

[0014] The pair of arms 22 of the piercing body are flexible or elastic, extend downward from the head 21 so as to be spaced apart from each other, and have their lower ends bent inward. The pair of clamping portions 25a, 25b are planar and located at the lower edges of the lower ends of the arms 22A, 22B, and extend downward so as to be slightly spaced apart from each other. When the user presses the arms 22 towards each other, the clamping portions 25 located at the tips can approach each other and come into contact.

[0015] The clamping portion 25 has a shape that gradually becomes thinner toward the bottom, so that the clamping portion 25 can easily clamp even very thin thorns.

[0016] In addition to the form shown in the figures, the punching body 20 may be annular, rectangular, V-shaped, or U-shaped, and as long as the opposing clamping portions 25a, 25b are formed so as to be in face-to-face contact with each other, the shape of the clamping portions 25a, 25b is not particularly limited, and various shapes can be adopted.

[0017] Although not shown, concave curved portions may be provided on arms 22A and 22B as finger rests for the user. Furthermore, clamping portions 25a and 25b may not be smooth flat surfaces, but may have uneven surfaces formed so as to be alternately arranged in the direction of their extension, and may have one or more projections extending inward at their tips so as to be able to clamp extremely thin thorns.

[0018] The pressure adjustment member 30 has an upper support (adjustment bolt) 40 having a through hole 40a extending in the vertical direction Y for the shaft portion 28 to pass through, a lower support (socket) 50 having a through hole 40a extending in the vertical direction Y for the shaft portion 28 to pass through, and a compression coil spring 60 arranged in a resilient state on the upper and lower supports. The upper support 40 has a base portion 41 having a groove formed on its outer circumferential surface so as to repeat concaves and convexes in the circumferential direction, and a hollow cylindrical upward extension portion 42 extending upward from the base portion 41. A helical groove (female portion) 40b that screws into a helical portion (male portion) 28a formed on the outer circumferential surface of the shaft portion 28 is formed on the inner circumferential surface of the through hole 40a of the upper support 40.

[0019] The lower support 50 has a base portion 51, a hollow cylindrical downward extension portion 52 extending downward from the base portion 51, and a pressing portion 53 extending further downward from the downward extension portion 52. The pressing portion 53 has a leg portion 54 extending downward from the downward extension portion, and an annular portion (skin deformation means) 56 located at the lower end of the leg portion 54. No spiral groove is formed on the inner peripheral surface of the through hole 50a of the lower support 50, and the inner peripheral surface is a smooth surface.

[0020] In the assembled state of the piercing tool 10, the shaft 28 extending downward from the inner surface of the head 21 of the piercing body 20 extends in the vertical direction Y through the through holes 40a, 50a of the upper and lower supports 40, 50 and the inside of the compression coil spring 60 arranged between them, and a lid 70 is screwed to its lower end. The lid 70 has an insertion hole 70a located in the upper part of the bolt shape, and a spiral groove 70b into which the spiral portion 28a of the shaft 28 is screwed is formed on the inner peripheral surface of the insertion hole 70a.

[0021] The piercing tool 10 can be manufactured using various known materials without limitation, such as metal materials such as stainless steel, aluminum or aluminum alloy, titanium or titanium alloy, and plastic materials such as hard thermoplastic synthetic resin. In addition, the pressing part 53 of the piercing tool 10 is preferably formed of stainless steel in order to have sufficient flexibility and elasticity. Furthermore, the whole or part of the piercing tool 10 may be subjected to various known surface treatments depending on the purpose, such as waterproofing and rust prevention.

[0022] Referring to Figure 5 (A), when the piercing tool 10 is not in use, the compression coil spring 60 of the pressure adjustment member 30 is arranged in a compressed state between the upper and lower supports 40, 50, so that the pressing portion 53 is constantly biased downward and the annular portion 56 presses against the installation surface T.

[0023] 5(B), the user can further compress the compression coil spring 60 by rotating the upper support 40 to move it downward. That is, when the annular portion 56 of the pressing portion 53 is in contact with a contact surface such as the skin, the compression coil spring 60 exerts a force to press the annular portion 56 further downward by the biasing force of the compression coil spring 60, and the lower support 50 moves upward away from the lid portion 70.

[0024] When the compression coil spring 60 is further compressed, the separation dimension R2 in the vertical direction Y between the upper and lower supports 40, 50 is smaller than the separation dimension R1 in the vertical direction Y between the upper and lower supports 40, 50 in the state before the compression operation. Also, before the compression operation, the lower support 50 and the lid portion 70 were in contact with each other without any separation, whereas when the compression coil spring 60 is further compressed, a separation dimension R3 is formed between them.

[0025] 1 and 3 again, the legs 54 of the pressing part 53 extend obliquely so as to gradually move away from the pricking tool body 20 rearward as they extend downward, and the connecting part 59 with the annular part 56 extends linearly in the vertical direction Y. Because the pressing part 53 has such a shape, the center point O of the annular part 56 is located on the longitudinal center line P of the pricking tool 10. As a result, when the user presses the pricking tool 10 during use, the pressing force is more easily transmitted to the annular part 56 than when the annular part 56 is positioned offset from the longitudinal center line P.

[0026] 6, when using the pricking tool 10, the user first pinches the pricking body 20 between the index finger and thumb of one hand 2, and places the pricking tool 10 directly above the pricking tool 1 inserted in the finger of the other hand 3. At this time, it is preferable that the pricking tool 10 is positioned approximately on the longitudinal center line P of the pricking tool 10.

[0027] By pressing the annular portion 56 against the skin so as to surround the thorn 1 stuck in the other hand 3, the skin area 4 surrounded by the annular portion 56 becomes slightly raised. At this point, the compression coil spring 60 is in an uncompressed state, so the separation dimension R1 in the vertical direction Y between the upper support 40 and the lower support 50 remains in an unused state.

[0028] When the portion 1a of the thorn 1 protruding from the skin is relatively long, the user can pinch and pull out the thorn 1 with the pinching parts 25a, 25b by pinching the legs 22A, 22B of the thorn remover body 20. On the other hand, when the portion 1a of the thorn 1 protruding from the skin is relatively short, it cannot be pinched by the pinching parts 25a, 25b, and it may not be possible to pull it out successfully.

[0029] 7 and 8, when the user uses the fingers of the other hand 3 or the assistant rotates the upper support 40 to move it downward, the compression coil spring 60 is further compressed and the pressure between the annular portion 56 in contact with the skin and the compression coil spring 60 increases, causing the lower support 50 to move upward. As a result, the separation dimension R2 in the vertical direction Y between the upper support 40 and the lower support 50 becomes smaller than the separation dimension R1 in the unused state, and the lower support 50 moves upward to form a separation dimension R3 between the lower support 50 and the lid portion 70.

[0030] Since the ring-shaped portion 56 is pressed even more firmly against the skin by the biasing force of the compression coil spring 60, the area 4 surrounded by the ring-shaped portion 56 becomes even more raised, and the thorns 1 can be protruded from the skin. As a result, by clamping the thorn removal body 20, the thorns 1 can be clamped by the clamping portions 25a and 25b and easily pulled out from the skin.

[0031] In this way, by adjusting the biasing force of compression coil spring 60 using upper support 40, in combination with the elastic force of pressing portion 53, it is possible to easily deform the skin and pull out thorns 1. Since the skin can be deformed simply by adjusting upper support 40, there is no need to press thorn removal tool 10 against the skin, and thorns 1 can be easily pulled out simply by clamping thorns 1 protruding from the skin in raised area 4 with clamping portions 25a, 25b.

[0032] After use, the compression coil spring 60 can be restored to its original state by rotating the upper support 40 to move it to its original position. Furthermore, the pressing force of the pressing portion 53 of the upper support 40 may be adjusted in advance before use.

[0033] As long as the annular portion 56 can raise the area 4 surrounded by the skin, it can adopt various known shapes such as an ellipse, a triangle, a rectangle, a polygon, a star, etc., instead of a circle. In particular, it may have a highly designable shape such as the outer shape of a character. Furthermore, the annular portion 56 may have a shape in which the radius of curvature of the lower part is larger than that of the upper part, and the lower part is curved more than the upper part, so that the pressing force of the annular portion 56 does not leave a pressure mark on the skin.

[0034] Furthermore, the legs 54 of the pressing portion 53 may be formed of a plurality of wires rather than a single wire, and may be flat, so long as the required flexibility is exhibited.

[0035] 9(A) is a partial enlarged view of pressing portion 53 in another embodiment of the pricking tool 10, and in this embodiment, annular portion 56 has an annular portion 57 and multiple projections 58 extending from annular portion 57 toward a center point O. By having such a shape of annular portion 56, multiple projections 58 function as positioning, and by positioning thorns 1 in the area surrounded by the tips of projections 58, it is possible to easily position thorns 1 on the longitudinal center line P of the pricking tool 10.

[0036] 9(B) is a partially enlarged view of pressing portion 53 in another embodiment of the piercing tool 10, in which annular portion 56 has a plurality of annular portions 56A, 56B, 56C spaced apart from one another in the radial direction. By having annular portion 56 have such a shape, the pressing force applied to the skin by pressing portion 53 can be dispersed, and pressure marks on the skin can be prevented from being left.

[0037] In the pricking tool 10 according to the embodiment shown in Figures 10 and 11, the leg portion 54 of the pressing portion 53 is formed from two wires 54A, 54B. In this way, since the leg portion 54 is formed from a plurality of wires 54A, 54B, when the user performs a pressing operation, pressure can be transmitted to the entire annular portion 56, and the skin can be raised more stably.

[0038] The piercing tool 10 is also provided with a rotation prevention means for preventing the pressing part 53 from rotating when the user performs a pressing operation. Specifically, the rotation prevention means has a flat part 28b extending in the up-down direction Y on the outer circumferential surface of the shaft part 28, and a flat part 50b formed in the through hole 50a of the lower support 50 that comes into contact with the flat part 28b.

[0039] In this way, by providing a rotation prevention means, even if the leg 54 of the pressing portion 53 has multiple wires 54A, 54B, it is possible to prevent the pressing portion 53 from rotating due to the spiral portion 28a of the shaft portion 28 when pressed.

[0040] In the pricking tool 10 according to the embodiment shown in Figures 12 and 13, the legs 54 of the pressing part 53 are formed from four wires 54A, 54B, 54C, and 54D. In this way, since the legs 54 are formed from a plurality of wires 54A, 54B, 54C, and 54D, when the user performs a pressing operation, pressure can be transmitted to the entire annular part 56, and the skin can be raised more stably.

[0041] 10 and 11, it has a rotation prevention means for preventing rotation of pressing part 53. In this manner, leg part 54 of pressing part 53 may be formed from two, three, four or more wires.

[0042] 14 and 15 show the pricking tool 10 in an example of yet another embodiment, which is provided with an operating part 80 consisting of annular parts (rings) 81, 82 provided on the legs 22A, 22B of the pricking body 20. In this embodiment, as shown in Fig. 15, the user may insert his or her fingers into the annular parts 81, 82 of the operating part 80 to perform a pressing operation, or may press the fingers against the outer surfaces of the annular parts 81, 82 to perform a pressing operation.

[0043] 16 and 17 show the pricking tool 10 in yet another embodiment, which is provided with an operating part 90 consisting of curved parts 91, 92 provided on the legs 22A, 22B of the pricking body 20. In this embodiment, as shown in Fig. 17, the user can perform a pressing operation with his or her fingers pressed against the curved parts 91, 92 of the operating part 90.

[0044] The pricking tool 10 according to the present invention may include at least the following embodiments. The embodiments may be adopted separately or in combination with each other. (1) The shaft portion has a helical portion on its outer peripheral surface, the upper support body and the lower support body each have a through hole through which the shaft portion passes, and the cover portion each has an insertion hole into which the lower end of the shaft portion is inserted, and a helical groove into which the helical portion screws into is formed on the inner peripheral surfaces of the through hole and the insertion hole, while the helical groove is not formed in the through hole of the lower support body. (2) The pressing portion has flexibility and elasticity. (3) It further has a lateral direction and a longitudinal centerline that bisects the lateral direction, and the center point of the annular portion is located on the longitudinal centerline. [Explanation of symbols]

[0045] 10. Prick remover 20 Needle puller body 28 Shaft 28 Spiral section 30 Pressure adjustment member 40 Upper support (adjustment bolt) 40a through hole 40b Spiral groove (female part) 50 Lower support (socket) 50a through hole 53 Pressing section 54 Legs 56 Circular portion (skin deformation means) 60 Compression coil spring 70 Lid 70a Insertion hole 70b spiral groove O Center point of the annulus X Horizontal Y vertical direction Z front and back direction

Claims

1. A pricking tool including a pricking body having a pair of arms with a clamping portion at the tip, the arms having a vertical direction, a pressure adjusting member located between the pair of arms and having a pressure portion that presses against the skin; The pressing force adjusting member further includes upper and lower supports that are penetrated by a shaft portion extending downward from the piercing body, a compression coil spring that is elastically arranged on the upper and lower supports, and a cover portion into which a lower end of the shaft portion is inserted, and the pressing portion includes a leg portion that extends downward from the lower support and an annular portion that is located at the lower end of the leg portion, A pricking tool characterized in that the biasing force of the compression coil spring can be adjusted by rotating the upper support.

2. The piercing tool described in claim 1, wherein the shaft portion has a spiral portion on its outer peripheral surface, the upper support body and the lower support body each have a through hole through which the shaft portion passes, and the cover portion each has an insertion hole into which the lower end of the shaft portion is inserted, and a spiral groove into which the spiral portion screws into is formed on the inner peripheral surfaces of the through hole and the insertion hole, while the through hole of the lower support body does not have the spiral groove formed therein.

3. The piercing tool according to claim 1 or 2, wherein the pressing portion has flexibility and elasticity.

4. The piercing tool according to claim 2, further comprising a lateral direction and a longitudinal centerline that bisects the lateral direction, the center point of the annular portion being located on the longitudinal centerline.

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