JP2017029573A - Holding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a holding tool in new structure formed of a pair of metallic plate-state holding pieces, extending to a longitudinal direction separated from the bent part, through the bent part, in which a pair of holding faces for holding a held object are formed on side end edges of the pair of plate-state holding pieces, facing the bent part, capable of solving a problem in which, in use, the end edges on which the holding faces are formed, are deviated in a vertical direction crossing the longitudinal direction, and a small held object which is a holding target cannot be held easily.SOLUTION: A support body is arranged between facing wall faces of a pair of plate-state holding pieces, in the vicinity of a bent part, and fixing parts are respectively formed between the support body and the facing wall faces of the pair of plate-state holding pieces, with the fixing parts as fulcrums, the end edges come close to each other for sandwiching a held object between the holding faces.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a pinching tool such as tweezers or tweezers, and more particularly to a pinching tool having a structure / shape obtained by bending a thin metal piece at a bent portion.

  Conventionally, tweezers and tweezers are known as a holding tool which is a metal tool used to pinch or pick a small object.

  Some metal tweezers and tweezers have a structure and shape in which a thin metal piece is bent at a bent portion.

  With reference to FIG. 1, a conventional general tweezer having a structure / shape obtained by bending a sheet metal piece at a bent portion will be described.

  The tweezer 1 is formed of a pair of metal plate-like sandwiching pieces 3 a and 3 b that extend from each other in the longitudinal direction away from the bending portion 2 via the bending portion 2.

  A pair of sandwiching surfaces 5a and 5b for sandwiching an object to be sandwiched are formed on the edges 4a and 4b on the side facing the bent portion 2 of the pair of plate-like sandwiching pieces 3a and 3b, respectively. The small objects to be sandwiched between the pair of sandwiching surfaces 5a and 5b facing each other are, for example, eyebrows, wasted hair, thorns, and the like.

  When the metal tweezer 1 is used, the sandwiching pieces 3a and 3b are picked with fingers and the edges 4a and 4b are turned to the arrows 6a and 6b using the bent portion 2 as a fulcrum while resisting the elastic force of the metal. As shown in FIG. In this way, waste hair or the like is sandwiched and removed from the clamping surfaces 5a and 5b.

  The elastic force at this time is exerted by a structure in which a pair of metal plate-like sandwiching pieces 3a and 3b are bent at the bending portion 2 and extend in the longitudinal direction and face each other.

  In such a metal tweezer 1, the thickness W1 of the bent portion 2 is set to the thickness of the sandwiching pieces 3a and 3b at portions other than the bent portion 2 for the purpose of ensuring the elastic force and enabling smooth use. Generally, the thickness is smaller than W2.

  In the case of such a structure of W1 <W2, if the holding pieces 3a and 3b are picked with fingers and the end edges 4a and 4b are made to approach in the directions of the arrows 6a and 6b, the bent portion 2 is thin, The edges 4a and 4b may be displaced in the directions of the arrows 7a and 7b or vice versa. In other words, if the fingers 4p are gripped by the fingers 3a and 3b to approach the edges 4a and 4b in the directions of the arrows 6a and 6b, the edges 4a in the vertical direction intersecting the longitudinal direction in which the gripping pieces 3a and 3b extend. 4b may be misaligned.

  If the end edges 4a and 4b on which the clamping surfaces 5a and 5b are formed are displaced in the vertical direction intersecting the longitudinal direction in which the clamping pieces 3a and 3b extend, the desired waste hairs on the clamping surfaces 5a and 5b Etc. can not be sandwiched well.

  Such a problem also occurs in tweezers having a structure and shape in which a single thin metal piece is bent at a bent portion.

  In order to solve such a problem, the inventor of the present application has proposed tweezers as a pinching tool having a novel structure that has not existed before (Patent Document 1).

Japanese Patent No. 5063830

  The present invention comprises a pair of metal plate-like sandwiching pieces extending toward each other in the longitudinal direction away from the bent portion via the bent portion, and the pair of sandwiching surfaces for sandwiching the object to be sandwiched is the pair of plate-like sandwiching members. In the holding tool formed on each edge of the piece facing the bent portion, when used, the edge on the side where the holding surface is formed is shifted in the vertical direction intersecting the longitudinal direction. The purpose of the present invention is to propose a holding device having a new structure that can solve the problem that the target small object to be held cannot be held well.

It consists of a pair of metal plate-like sandwiching pieces that extend from each other in the longitudinal direction away from the bent portion via the bent portion,
A pair of sandwiching devices in which a pair of sandwiching surfaces for sandwiching an object to be sandwiched are respectively formed on end edges of the pair of plate-shaped sandwiching pieces facing the bent portion,
In the vicinity of the bent portion, a support is provided between the opposing wall surfaces of the pair of plate-like sandwiching pieces,
A fixing part is formed between the support and the wall surfaces of the pair of plate-like sandwiching pieces facing each other,
It is a clamping tool in which the end edges approach each other to sandwich the object to be clamped between the clamping surfaces with the fixing portion as a fulcrum.

  In the above, the relationship between the length L1 from the inner surface of the bent portion to the fixed portion and the length L2 from the fixed portion to the end edge of the plate-shaped holding piece facing the bent portion is L1: L2 = 1: 5.2 to L1: L2 = 1: 6.3.

  According to this invention, the pair of sandwiching surfaces that sandwich the object to be sandwiched between the pair of plate-like sandwiching pieces made of metal that extend from each other in the longitudinal direction away from the bent portion via the bent portion are the pair of plates. In the holding tool formed on the edge on the side facing the bent portion of the pinching piece, when used, the edge on the side on which the holding surface is formed extends in the vertical direction intersecting the longitudinal direction. It is possible to prevent the occurrence of a situation in which the target small object to be sandwiched cannot be properly sandwiched. Thus, a convenient holding tool can be provided.

The perspective view explaining an example of the conventional tweezers. In one Embodiment of this invention, when a support body is arrange | positioned between the wall surfaces which a pair of plate-shaped clamping piece mutually opposes, the magnitude | size of the space | interval between the said wall surfaces, and the support body deployed there The top view explaining the relationship with the magnitude | size. The top view of one embodiment of the present invention. FIG. 4 is a perspective view of the embodiment shown in FIG. 3. The top view of other embodiment of this invention. FIG. 6 is a perspective view of the embodiment shown in FIG. 5. The top view of other embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Hereinafter, tweezers will be described as an embodiment of a holding tool having a structure and shape in which a thin metal piece is bent at a bending portion.

  In addition, about the component which is common in the conventional tweezers 1 demonstrated using FIG. 1, the code | symbol which is common is attached and the description is abbreviate | omitted.

(Embodiment 1)
The tweezers 11 (FIGS. 3 and 4) of this embodiment are composed of a pair of metal plate-like sandwiching pieces 3a and 3b extending from each other in the longitudinal direction away from the bending portion 2 via the bending portion 2. Yes.

  A pair of clamping surfaces 5a, 5b for clamping an object to be clamped such as eyebrows, waste hair, thorns, etc. are formed on the edges 4a, 4b of the pair of plate-like clamping pieces 3a, 3b on the side facing the bent portion 2, respectively. Yes.

  In the vicinity of the bent portion 2, a support body 9 a is disposed between the wall surfaces 3 c and 3 d of the pair of plate-like sandwiching pieces 3 a and 3 b facing each other. In the embodiment shown in FIGS. 3 and 4, the support 9a is a thin metal plate.

  Fixing portions 10a and 10b are formed between the support 9a and the wall surfaces 3c and 3d of the pair of plate-like sandwiching pieces 3a and 3b facing each other. The fixing portions 10a and 10b are formed, for example, by welding between the wall surfaces 3c and 3d of the metal plate-like sandwiching pieces 3a and 3b and the support body 9a made of a metal thin plate. Alternatively, it is formed by bonding / fixing between the two using an adhesive or the like.

  When sandwiching an object to be sandwiched such as waste hair between a pair of sandwiching surfaces 5a and 5b facing each other using the tweezers 12, the sandwiching pieces 3a and 3b are pinched with fingers, and the elastic force of the metal With the fixed portions 10a and 10b as fulcrums, the end edges 4a and 4b are brought close to each other as indicated by arrows 6a and 6b.

  That is, the sandwiching piece 3a with the fixing portions 10a and 10b between the portions of the support 9a on the side of the wall surfaces 3c and 3d facing each other of the plate-like sandwiching pieces 3a and 3b and the wall surfaces 3c and 3d as fulcrums. 3b end edges 4a and 4b move as indicated by arrows 6a and 6b.

  In this embodiment, the fulcrum in such an operation is the fixing between the portions of the support 9a on the side of the wall surfaces 3c and 3d facing each other of the plate-like sandwiching pieces 3a and 3b and the wall surfaces 3c and 3d. Parts 10a and 10b.

  Therefore, since the fulcrum of such operation is stable, when the tweezer 11 is used, the edges 4a and 4b on the side where the clamping surfaces 5a and 5b are formed are shown by arrows 7a and 7b in FIG. As described in the above, a situation in which the intended waste hair or the like cannot be successfully pinched by shifting in the vertical direction intersecting the longitudinal direction does not occur. As a result, easy-to-use tweezers can be provided.

  In this embodiment, the support 9a is a metal thin plate. However, the support 9a may be made of other materials such as a synthetic resin as long as the member can exhibit the rigidity as the fulcrum described above. .

  In this embodiment, as shown in FIG. 3, the length L1 from the inner surface of the bent portion 2 to the fixed portion 10a, and the edge on the side facing the bent portion 2 of the plate-shaped holding piece 3a from the fixed portion 10a The relationship between the length L2 up to 4a can be in the range L1: L2 = 1: 5.2 to L1: L2 = 1: 6.3.

  For example, when L1 + L2 = 100 mm in FIG. 3, L1 = 15 mm and L2 = 85 mm, and the relationship of L1: L2 = 1: 5.7 can be established. In FIG. 3, when L1 + L2 = 80 mm, L1 = 12 mm and L2 = 68 mm, and the relationship of L1: L2 = 1: 5.7 can be established. Further, in FIG. 3, when L1 + L2 = 120 mm, L1 = 18 mm and L2 = 102 mm, and the relationship of L1: L2 = 1: 5.7 can be established.

  The size (length) of L1 can be set in consideration of the size of the entire length (L1 + L2) of the tweezer 11 and the hardness, suppleness, and elongation of the metal used in the tweezer 11.

  In addition, the shape and size of the support 9a can also be set in consideration of the size of the entire length (L1 + L2) of the tweezers 11, the hardness, flexibility, and elongation of the metal material used for the tweezers 11. .

  The size (length) of L1 in FIG. 3 and the shape and size of the support 9a can be set in consideration of the above-mentioned matters, but tweezers and tweezers used for pinching and picking small objects In view of the shape and size such as those described above, it is desirable that the relationship described above exists between the size (length) of L1 and the size (length) of L2, as described below.

  When the size of L1 is reduced with respect to the size of L2, and the size (interval) between the fixed portion 10a and the fixed portion 10b, which is indicated by reference numeral W1 in FIG. 2, is reduced, the tweezer 11 (FIG. 3). As shown in the arrows 6a and 6b, the movable range is small when the holding pieces 3a and 3b are pinched with fingers and the edges 4a and 4b are moved toward each other as indicated by arrows 6a and 6b. Become. For this reason, since the usability of the tweezer 11 is not good, it is not preferable.

  On the other hand, if the size of L1 is increased with respect to the size of L2, and the size (interval) between the fixed portion 10a and the fixed portion 10b indicated by the reference symbol W1 in FIG. 11 is not preferable because it is not easy to use.

  Therefore, from this point of view, the length L1 from the inner surface of the bent portion 2 to the fixed portion 10a, and the length from the fixed portion 10a to the edge 4a on the side facing the bent portion 2 of the plate-shaped holding piece 3a. The relationship between L2 and L2 is preferably in the range of L1: L2 = 1: 5.2 to L1: L2 = 1: 6.3. From this viewpoint, a more preferable range is L1: L2 = 1: 5.4 to L1: L2 = 1: 6.0, and a more preferable range is L1: L2 = 1: 5.6 to L1: L2. = 1: 5.8.

  In the above description, the position of the fixing portion 10a formed on the plate-like sandwiching piece 3a side has been described. However, the support 9a is located between the wall surfaces 3c, 3d of the pair of plate-like sandwiching pieces 3a, 3b facing each other. To be deployed. Therefore, the same applies to the position of the fixing portion 10b formed on the plate-shaped sandwiching piece 3b side.

  That is, from the viewpoint described above, the length L1 from the inner surface of the bent portion 2 to the fixed portion 10b, and the length L2 from the fixed portion 10b to the end edge 4b on the side facing the bent portion 2 of the plate-like sandwiching piece 3b. Also, it is desirable that L1: L2 = 1: 5.2 to L1: L2 = 1: 6.3.

  As described above, the support body 9a is a member having rigidity such as metal, and between the support body 9a and the wall surfaces 3c and 3d facing each other of the pair of plate-shaped sandwiching pieces 3a and 3b. Fixing portions 10a and 10b are formed, respectively.

  As described above, the shape and size of the support 9a are set in consideration of the length (L1 + L2) of the tweezer 11 and the hardness, flexibility, elongation, etc. of the metal used in the tweezer 11. However, depending on the position at which the support 9a is deployed, the edges 4a, 4b after deployment of the support 9a can be determined from the relationship between the size of the support 9a and the size indicated by the symbol W1 in FIG. There is a possibility that the interval between them becomes too large or too small, resulting in unusable tweezers.

  Therefore, as shown in FIG. 2, in the state where the support body 9a is not deployed, a location where the support body 9a is deployed in a region satisfying the above-described relationship of L1: L2 is set, and formed at this set location. The support 9a having a shape and structure having a size (length) between the fixed portion 10a and the fixed portion 10b (the size indicated by the symbol W1 in FIG. 2) is set at the set position as shown in FIG. It is desirable that the significance of setting the relationship between the size of L1 and the size of L2 as described above is exhibited by deploying to the above.

(Embodiment 2)
5 and 6 illustrate another embodiment.

  The embodiment shown in FIGS. 5 and 6 is different from the embodiment shown in FIGS. 3 and 4 only in that the support 9b is a hollow cylindrical body.

  Since the other points are the same as those of the embodiment shown in FIGS. 3 and 4, common portions are denoted by common reference numerals and description thereof is omitted.

  In the embodiment shown in FIGS. 5 and 6, the support 9b is formed of a hollow cylindrical body made of a metal or a synthetic resin having a required rigidity. Alternatively, the support 9b can be formed of a cylindrical body made of a metal or a synthetic resin having a required rigidity.

(Embodiment 3)
The embodiment shown in FIG. 7 describes a modification of the embodiment shown in FIGS.

  In the embodiment shown in FIGS. 5 and 6, the fixing portions 10a are respectively provided between the outer peripheral surface of the cylindrical support 9b and the opposing wall surfaces 3c and 3d of the pair of plate-like sandwiching pieces 3a and 3b. 10b was formed.

  In the embodiment shown in FIG. 7, fixing is performed between the support pieces 10c and 10d extending from the upper ends 3e and 3f of the plate-like sandwiching pieces 3a and 3b and the upper end of the support body 9b made of a cylindrical body. In addition, although not shown in figure, it can be made to couple | bond with the support piece extended from the lower end of plate-shaped clamping piece 3a, 3b also in the lower end of the support body 9b which consists of a cylindrical body.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and various modifications can be made within the technical scope grasped from the description of the claims. Is possible.

  For example, the tweezers have been described above as an example of a holding tool having a structure and shape in which a thin plate-like metal piece is bent at a bent portion, but the same applies to tweezers.

  Moreover, as a support body, it is not restricted to the thin plate-shaped and cylindrical support body mentioned above. The fixing portions 10a and 10b are formed between the opposing wall surfaces 3c and 3d of the pair of plate-like sandwiching pieces 3a and 3b made of a member having a desired rigidity such as metal, and the fixing portions Various shapes and structures are possible as long as the edges 4a and 4b can approach each other to sandwich the object to be sandwiched between the clamping surfaces 5a and 5b with 10a and 10b as fulcrums. Can be employed as a support.

DESCRIPTION OF SYMBOLS 1 Conventional tweezers 2 Bending part 3a, 3b Plate-shaped clamping piece 3c, 3d The wall surface 4a, 4b of a plate-shaped clamping piece mutually opposing edge 5a, 5b It is formed in the edge of a plate-shaped clamping piece Holding surface 9a, 9b Support body 10a, 10b Fixing part 10c, 10d Support piece 11, 12, 13 Tweezer

It consists of a pair of metal plate-like sandwiching pieces that extend from each other in the longitudinal direction away from the bent portion via the bent portion,
A pair of sandwiching devices in which a pair of sandwiching surfaces for sandwiching an object to be sandwiched are respectively formed on end edges of the pair of plate-shaped sandwiching pieces facing the bent portion,
In the vicinity of the bent portion, a support body made of a member having rigidity is provided between the opposing wall surfaces of the pair of plate-shaped sandwiching pieces,
A fixing part is formed between the support and the wall surfaces of the pair of plate-like sandwiching pieces facing each other,
It is a clamping tool in which the end edges approach each other to sandwich the object to be clamped between the clamping surfaces with the fixing portion as a fulcrum.

Claims (2)

It consists of a pair of metal plate-like sandwiching pieces that extend from each other in the longitudinal direction away from the bent portion via the bent portion,
A pair of sandwiching devices in which a pair of sandwiching surfaces for sandwiching an object to be sandwiched are respectively formed on end edges of the pair of plate-shaped sandwiching pieces facing the bent portion,
In the vicinity of the bent portion, a support is provided between the opposing wall surfaces of the pair of plate-like sandwiching pieces,
A fixing part is formed between the support and the wall surfaces of the pair of plate-like sandwiching pieces facing each other,
The holding tool in which the end edges approach each other so as to hold the object to be held between the holding surfaces with the fixed portion as a fulcrum. The relationship between the length L1 from the inner surface of the bent portion to the fixed portion and the length L2 from the fixed portion to the edge of the plate-shaped holding piece facing the bent portion is L1: L2. The pinching tool according to claim 1, wherein = 1: 5.2 to L1: L2 = 1: 6.3.

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