scissors

Abstract

This design helps to reduce the feeling of coldness when touching the handle and also improves the grip performance of the handle. [Solution] The scissors comprises a first metal scissor piece 10 having a first blade 11 and a first handle 12, a second metal scissor piece 20 having a second blade 21 and a second handle 22, and a pivot shaft 30 that rotatably connects the first scissor piece 10 and the second scissor piece 20. At least one of the first handle 12 and the second handle 22 is provided with a porous portion 40 having a number of holes 41 opening on its surface.

Description

Technical Field

[0001] The present invention relates to scissors.

Background Art

[0002] Patent Document 1 discloses scissors for hair styling. The scissors described in Patent Document 1 include a first scissor piece having a first blade body and a first handle part, a second scissor piece having a second blade body and a second handle part, and a support shaft part that rotatably connects the first scissor piece and the second scissor piece.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0006] With this configuration, the presence of a porous section reduces the surface area of ​​the metal that the user's fingers touch when they touch the handle. Air is present inside each of the porous sections. Furthermore, air has higher thermal insulation properties than metal. Therefore, for example, in situations where the ambient temperature is low and the scissors are cold, the user will feel less cold when they touch the handle.

[0007] Furthermore, with the above configuration, the skin of the fingers grips the porous parts, making the handle less likely to slip. This enhances the anti-slip performance of the handle even if the surface of the handle is polished.

[0008] Therefore, it is possible to suppress the feeling of coldness when touching the handle and to improve the anti-slip performance of the handle. [Aspect 2] The diameter of the hole is 0.5 mm or more and 2 mm or less. The scissors described in Embodiment 1.

[0009] If the diameter of the holes is larger than 2 mm, problems may arise such as the outer shape of the handle being distorted by the presence of the perforated section, or the feel being impaired as the skin of the fingers digs excessively into the holes.

[0010] Furthermore, if the diameter of the hole is smaller than 0.5 mm, it is difficult to form a porous area. In this regard, with the above configuration, since the diameter of the holes is between 0.5 mm and 2 mm, it is possible to prevent the outer shape of the handle from being distorted and the tactile feel from being compromised. In addition, the porous part can be easily formed.

[0011] [Aspect 3] The first blade body is a moving blade, The second blade is a stationary blade, The first handle portion has a first insertion hole through which the user's thumb is inserted, The second handle portion has a second insertion hole through which the user's fingers other than the thumb are inserted. The porous portion is not provided on at least the inner peripheral surface of the first insertion hole. The scissors according to Embodiment 1 or Embodiment 2.

[0012] The user's thumb can easily slide on the inner peripheral surface of the insertion hole of the handle portion. Therefore, if a porous portion is provided on the inner peripheral surface of the first insertion hole through which the thumb is inserted, there is a possibility of giving the user a sense of discomfort when opening and closing the scissors.

[0013] In this regard, according to the above configuration, since the porous portion is not provided on at least the inner peripheral surface of the first insertion hole, the occurrence of the above-mentioned inconveniences can be avoided. [Embodiment 4] The porous portion is provided on the entire surface of at least one of the first handle portion and the second handle portion. The scissors according to Embodiment 1 or Embodiment 2.

[0014] According to the same configuration, the effects of the scissors according to Embodiment 1 or Embodiment 2 can be achieved over the entire surface of at least one of the first handle portion and the second handle portion. [Embodiment 5] Among the first handle portion and the second handle portion, the one having the porous portion is formed by a metal additive manufacturing method. The scissors according to any one of Embodiments 1 to 4.

[0015] According to the same configuration, the handle portion having the porous portion can be easily formed. [Advantages of the Invention]

[0016] According to the scissors of the present invention, it is possible to suppress the feeling of cold when touching the handle portion and improve the anti-slip performance of the handle portion. [Brief Description of the Drawings]

[0017] [Figure 1] FIG. 1 is a plan view of scissors according to an embodiment. [Figure 2] FIG. 2 is an enlarged plan view of the first handle portion of the scissors of FIG. 1. [Figure 3] FIG. 3 is an enlarged side view of the first handle portion of the scissors shown in FIG. 1. [Figure 4] FIG. 4 is an enlarged plan view of the second handle portion of the scissors shown in FIG. 1. [Figure 5] FIG. 5 is an enlarged side view of the second handle portion of the scissors shown in FIG. 1.

MODE FOR CARRYING OUT THE INVENTION

[0018] Hereinafter, a pair of scissors according to an embodiment will be described with reference to FIGS. 1 to 4. The pair of scissors according to this embodiment is for hair styling. <Basic Configuration of Scissors> As shown in FIG. 1, the pair of scissors includes a first scissor blade 10, a second scissor blade 20, and a pivot portion 30.

[0019] The first scissor blade 10 has a first cutting edge 11 and a first handle portion 12. Both the first cutting edge 11 and the first handle portion 12 are made of metal, and the first cutting edge 11 is a movable blade. The second scissor blade 20 has a second cutting edge 21 and a second handle portion 22. Both the second cutting edge 21 and the second handle portion 22 are made of metal, and the second cutting edge 21 is a stationary blade.

[0020] Both the first cutting edge 11 and the second cutting edge 21 are made of metal such as stainless steel and are formed by a well-known method. Both the first handle portion 12 and the second handle portion 22 are made of metal such as stainless steel and are formed by a metal additive manufacturing method.

[0021] The first cutting edge 11 and the first handle portion 12 are connected to each other by welding. The second cutting edge 21 and the second handle portion 22 are connected to each other by welding. The pivot portion 30 has a well-known configuration and rotatably connects the first scissor blade 10 and the second scissor blade 20.

[0022] <First Handle Portion, Second Handle Portion> As shown in Figures 1 to 3, the first handle portion 12 has a first connecting portion 13, a first insertion portion 14, and a hit point 19.

[0023] The first connecting portion 13 is connected to the first blade body 11. The first insertion portion 14 is connected to the base end of the first connecting portion 13 and has a first insertion hole 15 through which the user's thumb is inserted.

[0024] As shown in Figures 1, 4, and 5, the second handle portion 22 has a second connecting portion 23, a second insertion portion 24, and a little finger rest 29. The second connecting portion 23 is connected to the second blade body 21.

[0025] The second handle portion 22 is connected to the base end of the second connecting portion 23 and has a second insertion hole 25 through which the user's fingers other than the thumb, specifically the ring finger, are inserted. The surfaces of the handles 12 and 22 are polished.

[0026] The hit point 19 is the portion that contacts the inner surface 28 of the second handle portion 22, and protrudes from the inner surface 18 of the first insertion portion 14 so as to approach the inner surface 28 of the second handle portion 22. The little finger rest 29 is the part on which the user's little finger rests, and it protrudes from the outer surface 27 of the second insertion part 24 so as to be separated from the first handle part 12.

[0027] <Porous part> As shown in Figures 1 to 5, at least one of the first handle portion 12 and the second handle portion 22 is provided with a porous portion 40 having a number of holes 41 opening to the surface. The cross-sectional shape of the holes 41 in this embodiment is circular.

[0028] In this embodiment, the porous portion 40 is provided on both the first handle portion 12 and the second handle portion 22. The diameter of hole 41 is preferably 0.5 mm or more and 2 mm or less. In this embodiment, the diameter of hole 41 is approximately 1 mm.

[0029] As shown in Figures 1 to 3, the first handle portion 12 is provided with a porous portion 40 in the first connecting portion 13 and the first insertion portion 14. As shown in Figures 1, 4, and 5, the second handle portion 22 is provided with a porous portion 40 in the second connecting portion 23, the second insertion portion 24, and the little finger rest 29.

[0030] Preferably, the porous portion 40 is not provided on at least the inner circumferential surface 16 of the first insertion hole 15. As shown in Figures 1 to 5, in this embodiment, the inner circumferential surface 16 of the first insertion hole 15 and the inner circumferential surface 26 of the second insertion hole 25 are not provided with porous portions 40.

[0031] The peripheral edge 16A of the inner circumferential surface 16 of the first insertion hole 15 and the peripheral edge 26A of the inner circumferential surface 26 of the second insertion hole 25 do not have a porous portion 40. As shown in Figures 1 and 2, in this embodiment, the hit point 19 is not provided with a porous portion 40. Although not shown in the illustration, the portion of the inner surface 28 of the second insertion portion 24 that contacts the hit point 19 is not provided with a porous portion 40.

[0032] As shown in Figures 2 and 3, in this embodiment, the outer surface 17 of the first insertion portion 14 is not provided with a porous portion 40. <Operation of this embodiment> In this embodiment of scissors, since a porous section 40 is provided, the area of ​​metal that the user's fingers touch when they touch the handles 12, 22 is reduced. Air is present inside each of the holes 41 that make up the porous section 40. Furthermore, air has higher thermal insulation properties than metal. For this reason, for example, in situations where the ambient temperature is low and the scissors are cold, the user will feel less cold when they touch the handles 12, 22 (Function 1).

[0033] Furthermore, with the scissors of this embodiment, the skin of the fingers bites into the porous portion 40, making the handle portions 12 and 22 less slippery. As a result, even if the surface of the handle portions 12 and 22 is polished, the anti-slip performance of the handle portions 12 and 22 can be enhanced (Function 2 above).

[0034] <Effects of this embodiment> (1) Both the first handle portion 12 and the second handle portion 22 are provided with a porous portion 40 having a number of holes 41 that open to the surface.

[0035] With this configuration, the above-mentioned effects 1 and 2 are achieved, which suppresses the feeling of coldness when touching the handles 12 and 22, and also enhances the anti-slip performance of the handles 12 and 22.

[0036] (2) If the diameter of the hole 41 is greater than 2 mm, problems may arise such as the outer shape of the handle portion 12, 22 being distorted by the presence of the porous portion 40, or the tactile feel being impaired because the skin of the fingers is excessively pressed into the hole 41.

[0037] Furthermore, if the diameter of the hole 41 is smaller than 0.5 mm, it is difficult to form the porous portion 40. In this respect, with the scissors of this embodiment, since the diameter of the hole 41 is 0.5 mm or more and 2 mm or less, it is possible to prevent the outer shape of the handles 12 and 22 from being distorted and the feel from being impaired. In addition, the porous portion 40 can be easily formed.

[0038] (3) The user's thumb is likely to slide on the inner surface of the first insertion hole 15 of the first handle portion 12. For this reason, if a porous portion 40 is provided on the inner surface 16 of the first insertion hole 15 through which the thumb is inserted, it may cause discomfort to the user when opening and closing the scissors.

[0039] In this regard, according to the scissors of this embodiment, the porous portion 40 is not provided on at least the inner circumferential surface 16 of the first insertion hole 15, so the above-mentioned inconveniences can be avoided. (4) The first handle portion 12 and the second handle portion 22 are formed by metal additive manufacturing. Therefore, the handle portions 12 and 22 having the porous portion 40 can be easily formed.

[0040] (5) When polishing the surfaces of the handles 12 and 22, the surface temperature rises due to frictional heat. Therefore, if the polishing process is performed continuously, the temperature of the handles 12 and 22 becomes excessively high, making it difficult to shorten the polishing time.

[0041] In this respect, according to the scissors of this embodiment, the frictional heat generated during the polishing process is released through the holes 41 of the porous portion 40. This makes it possible to suppress the temperature rise of the handle portions 12 and 22 during the polishing process, thereby shortening the polishing time.

[0042] (6) Since the handles 12 and 22 are provided with perforated sections 40, the handles 12 and 22, and consequently the scissors, can be made lighter. <Example of changes> This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0043] The handle portions 12 and 22 having the porous portion 40 may be formed by methods other than metal additive manufacturing, such as cutting. • A porous portion 40 may be provided on the inner circumferential surface 26 of the second insertion hole 25.

[0044] • A porous portion 40 may be provided on the inner circumferential surface 16 of the first insertion hole 15. Although not shown in the illustration, the porous portion 40 may be provided on the entire surface of at least one of the first handle portion 12 and the second handle portion 22. In this case, the above effects (1) and (2) can be achieved over the entire portion of the first handle portion 12 and the second handle portion 22 that has the porous portion 40.

[0045] The diameters of the numerous holes 41 do not need to be the same; as long as they are between 0.5 mm and 2 mm, the diameters of the holes 41 may differ depending on their formation location, etc. The diameter of hole 41 may be less than 0.5 mm. Alternatively, the diameter of hole 41 may be greater than 2 mm. Even in this case, the above effect (1) can still be achieved.

[0046] The cross-sectional shape of hole 41 is not limited to a circular shape, but can be any shape, such as an ellipse. • Hole 41 does not have to be a through hole that penetrates the handle portions 12 and 22. [Explanation of symbols]

[0047] 10…First scissor piece 11...1st blade body 12...First handle part 13...1st connection part 14…First insertion section 15…First insertion hole 16...Inner peripheral surface 16A... Peripheral area 17...Outer surface 18…Inner surface 19... Hit Points 20…Second scissors piece 21…Second blade body 22...Second handle part 23…Second connection part 24...Second insertion section 25…Second insertion hole 26…Inner peripheral surface 26A... Peripheral area 27...Outer surface 28…Inner surface 29... pinky finger loop 30…Spindle part 40…Porous part 41...hole

Claims

1. A first metal scissor blade having a first blade and a first handle, A second metal scissor blade having a second blade and a second handle, A pair of scissors comprising a pivot shaft that rotatably connects the first scissor blade and the second scissor blade, At least one of the first handle portion and the second handle portion is provided with a porous portion having a number of holes opening to the surface, The first blade body is a moving blade, The second blade is a stationary blade, The first handle portion has a first insertion hole through which the user's thumb is inserted, The second handle portion has a second insertion hole through which the user's fingers other than the thumb are inserted. The porous portion is not provided on the inner circumferential surface of the first insertion hole. scissors.

2. The diameter of the hole is 0.5 mm or more and 2 mm or less. The scissors according to claim 1.

3. The first handle portion and the second handle portion having the porous portion are formed by metal additive manufacturing. The scissors according to claim 1 or claim 2.

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