WO2021079532A1

WO2021079532A1 - Hair tweezers

Info

Publication number: WO2021079532A1
Application number: PCT/JP2019/042988
Authority: WO
Inventors: 麻衣門倉; 大塚　敦; 高資小出
Original assignee: 株式会社貝印刃物開発センター
Priority date: 2019-10-25
Filing date: 2019-11-01
Publication date: 2021-04-29
Also published as: JP2021065547A; JP6619909B1

Abstract

In hair tweezers 1, a first member 11 includes a first indentation 111 that is recessed inward in an outer surface, in the thickness T direction, of a pair of arm pieces 10, and a second member 12 includes a second indentation 121 that is recessed inward in an outer surface of the pair of arm pieces 10. A protrusion 112 is formed on the inner side of the first member 11, and the second member 12 has a third through-hole 122 formed inside the second recess 121 and piercing between the outer surface and the inner surface. The protrusion 112 is configured so as to fit into the third through-hole 122 and to not jut outward from the third through hole 122.

Description

tweezers

This disclosure relates to tweezers.

Conventionally, tweezers having a pair of arm pieces connected at a base end portion facing each other with their tips slightly separated from each other are known (see, for example, Patent Documents 1 to 5).

Jikkenhei 5-11911 Gazette Japanese Unexamined Patent Publication No. 2008-93241 Jikkenhei 6-75417 Gazette Japanese Unexamined Patent Publication No. 2004-216494 Design registration No. 1418016

Here, when removing the targeted hair using the above-mentioned tweezers, it is necessary to operate the tip of the tweezers.

However, with the tweezers described in Patent Documents 1 to 3, since the fingertips are slippery on the outer surfaces of the pair of arm pieces, it is difficult to accurately operate the tip of the tweezers to remove the targeted hair. There was a problem.

In addition, it is usually assumed that the above-mentioned tweezers are stored in a container such as a pouch and carried.

However, in the tweezers described in Patent Document 4 and Patent Document 5, a pair of stoppers for preventing displacement in the width direction are provided inside the pair of arm pieces so as to be fitted to each other. There is a problem that the thickness of the tweezers becomes large, the structure is not compact, and the tweezers are bulky and not excellent in portability.

Therefore, the present disclosure has been made in view of the above-mentioned problems, and an object of the present disclosure is to provide tweezers having a compact structure and capable of easily removing targeted hair.

The first feature of the present disclosure is tweezers, which includes a pair of arm pieces made of metal and a first member and a second member made of synthetic resin, and the pair of arms. Each piece has a tip portion including the tip of the tweezers, a first intermediate portion, a second intermediate portion, and a base end portion including the base end of the tweezers, and between each of the first intermediate portions. The length of the tweezers in the thickness direction is configured to increase from the tip to the base end, and the length in the thickness direction between each of the second intermediate portions is from the tip. The pair of arm pieces are configured to become shorter toward the base end, and the pair of arm pieces are opposed to each other with the tips slightly separated from each other and are connected at the base end portion. , The first resin part and the second resin part, the second member is composed of the third resin part and the fourth resin part, and one of the pair of arm pieces has a first A through hole is formed, and a second through hole is formed on the other side of the pair of arm pieces, and the first resin part and the second resin part pass through the first through hole. It has a structure that sandwiches one of the pair of arm pieces, and the third resin part and the fourth resin part have a structure that sandwiches the other of the pair of arm pieces through the second through hole. The first member has a first recess that is recessed inward on the outer surface of the pair of arm pieces in the thickness direction, and the second member has the pair. The outer surface of the arm piece of the arm has a second concave portion recessed inward, and a convex portion is formed on the inner side of the first member. A third through hole is formed in the second recess so as to penetrate between the outer surface and the inner surface, and the convex portion is configured to fit into the third through hole. The convex portion is configured so as not to project outward from the third through hole, and the first through hole and the second through hole include the first intermediate portion and the second intermediate portion. When the region between the tip and the boundary is divided into a first region on the tip side and a second region on the boundary side, the first region is arranged on the tip side of the boundary between the tweezers. The ratio of the length of the tweezers in the longitudinal direction to the length of the second region in the longitudinal direction is 1.5: 3.5, and the first through hole and the second through hole are formed. The gist is that the through holes are arranged in the second region.

According to the present disclosure, it is possible to provide tweezers having a compact structure and capable of easily removing targeted hair.

FIG. 1 is a diagram showing an example of tweezers 1 according to an embodiment. FIG. 2 is a side view of the tweezers 1 shown in FIG. FIG. 3 is an exploded view of the tweezers 1 shown in FIG. FIG. 4 is a plan view of the tweezers 1 shown in FIG. FIG. 5 is a plan view of the tweezers 1 shown in FIG. FIG. 6 is a front view of the tweezers 1 shown in FIG. FIG. 7 is a diagram for explaining the tweezers 1 according to the embodiment.

Hereinafter, one embodiment will be described with reference to FIGS. 1 to 7.
<First Embodiment>
An example of the configuration of the tweezers 1 according to the present embodiment will be described with reference to FIGS. 1 to 7. FIG. 1 is a diagram showing an example of tweezers 1 according to the present embodiment. FIG. 2 is a side view of the tweezers 1 shown in FIG. 1 as viewed from the D1 direction. FIG. 3 is an exploded view of the tweezers 1 shown in FIG. FIG. 4 is a plan view of the tweezers 1 shown in FIG. 1 as viewed from the D2L direction. FIG. 5 is a plan view of the tweezers 1 shown in FIG. 1 as viewed from the D2R direction. FIG. 6 is a front view of the tweezers 1 shown in FIG. 1 as viewed from the D3 direction. FIG. 7 is a diagram for explaining the tweezers 1 according to the present embodiment.

Hereinafter, in the present embodiment, as shown in FIG. 1, the tweezers 1 has a thickness direction T, a longitudinal direction L, and a width direction (horizontal direction) W.

As shown in FIGS. 1 to 3, the tweezers 1 according to the present embodiment includes a pair of arm pieces 10 made of metal, and a first member 11 and a second member 12.

As shown in FIG. 2, each of the pair of arm pieces 10 includes a tip portion 10A including the tip portion 10X of the tweezers 1, a first intermediate portion 10B, a second intermediate portion 10C, and a proximal end including the proximal end 10Y of the tweezers 1. It has parts 10D in order.

Further, as shown in FIG. 2, the length L1 in the thickness direction T between each of the first intermediate portions 10B is configured to become longer from the tip end 10X to the base end 10Y.

On the other hand, as shown in FIG. 2, the length L2 in the thickness direction T between each of the second intermediate portions 10C is configured to become shorter from the tip end 10X to the base end 10Y.

Further, as shown in FIGS. 1 and 2, the pair of arm pieces 10 are connected by the base end portion 10D so as to face each other with the tip ends 10X slightly separated from each other.

For example, the first member 11 and the second member 12 are made of a synthetic resin such as ABS resin.

As shown in FIG. 3, the first member 11 is composed of the first resin part 11A and the second resin part 11B. The first member 11 may be composed of one member or three or more members.

As shown in FIG. 3, a first through hole 101 is formed in one of the pair of arm pieces 10. Here, the first resin part 11A and the second resin part 11B have a structure in which one of the pair of arm pieces 10 is sandwiched through the first through hole 101.

For example, the first resin part 11A has a first resin convex portion 11A1. Further, the second resin part 11B has a first resin recess 11B1. Here, the first resin convex portion 11A1 is configured to fit into the first resin concave portion 11B1 via the first through hole 101.

Similarly, as shown in FIG. 3, the second member 12 is composed of the third resin part 12B and the fourth resin part 12A. The second member 12 may be composed of one member or three or more members.

As shown in FIG. 3, a second through hole 102 is formed on the other side of the pair of arm pieces 10. The third resin part 12B and the fourth resin part 12A have a structure in which the other of the pair of arm pieces 10 is sandwiched through the second through hole 102.

For example, the third resin part 12B has a second resin convex portion 12B1. Further, the fourth resin part 12A has a second resin recess 12A1. Here, the second resin convex portion 12B1 is configured to fit into the second resin concave portion 12A1 via the second through hole 102.

According to this configuration, the first resin part 11A and the second resin part 11B (or the third resin part 12B and the fourth resin part 12A) sandwich the metal arm piece 10 so that the first synthetic resin part is made of synthetic resin. The fixing of the member 11 (or the second member 12) can be stabilized, that is, the risk of the first member 11 (or the second member 12) coming off from the metal arm piece 10 is reduced. It is possible to realize a structure in which the first member 11 (or the second member 12) made of synthetic resin does not protrude outward from the metal arm piece 10.

As shown in FIG. 4, the first member 11 has a first recess 111 recessed inward in the thickness direction T on the outer surface of the pair of arm pieces 10 in the thickness direction T. Specifically, the first resin part 11A constituting the first member 11 has such a first recess 111.

Further, as shown in FIGS. 2 and 3, a convex portion 112 is formed on the inner surface of the first member 11 in the thickness direction T. Specifically, the second resin part 11B constituting the first member 11 has such a convex portion 112.

As shown in FIG. 5, the second member 12 has a second recess 121 recessed inward in the thickness direction T on the outer surface of the pair of arm pieces 10 in the thickness direction T. Specifically, the third resin part 12B constituting the second member 12 has such a second recess 121.

Further, as shown in FIG. 5, the second member 12 is formed with a third through hole 122 that penetrates between the outer surface and the inner surface in the thickness direction T in the second recess 121. ..

Here, the convex portion 112 is configured so that it can be fitted into the third through hole 122. By fitting the convex portion 112 into the third through hole 122, it is possible to prevent the pair of arm pieces 10 from being displaced in the width direction. In particular, by forming the first member 11 and the second member with ABS resin, the convex portion 112 has an appropriate altitude, and the pair of arm pieces 10 can be more reliably prevented from being displaced in the width direction. Can be done.

Further, as shown in FIG. 7, the convex portion 112 is configured so as not to protrude from the third through hole 122 to the outside in the thickness direction T of the pair of arm pieces 10.

Further, as shown in FIG. 3, the first through hole 101 and the second through hole 102 are arranged on the tip 10X side of the boundary 10Z between the first intermediate portion 10B and the second intermediate portion 10C. ..

Further, as shown in FIGS. 4 and 5, when the region between the tip 10X and the boundary 10Z is divided into a first region R1 on the tip 10X side and a second region R2 on the boundary 10Z side, the first region R1 The ratio of the length L3 in the longitudinal direction L of the tweezers 1 to the length L4 in the longitudinal direction L to the second region R2 is configured to be 1.5: 3.5. Here, the first through hole 101 and the second through hole 102 are arranged in the second region R2.

According to the above configuration, as shown in FIG. 1, the user of the tweezers 1 is formed on the outer surface of the pair of arm pieces 10 in a state where the convex portion 112 is fitted into the third through hole 122. By placing the fingertips in the first recess 111 and the second recess 121, the fingertips can be stabilized and the operability of the tip 10X of the tweezers 1 is improved, so that the targeted hair can be removed. ..

More specifically, since a synthetic resin portion that is recessed inward is provided on the outer surface of the pair of metal leg pieces 10, the fingertips are less likely to slip due to the difference in material.

Further, according to the above-described configuration, the convex portion 112 is configured so as to fit into the third through hole 122 but not to protrude from the third through hole 122 to the outside of the arm piece 10, so that the tweezers 1 The length of T in the thickness direction can be shortened (that is, the tweezers 1 can be thinned), and a compact structure can be realized. As a result, it is possible to realize the tweezers 1 which is not bulky on a pouch or the like and has excellent portability.

Further, according to the above configuration, since the convex portion 112 is configured so as not to protrude outward from the third through hole 122 in the thickness direction T, as shown in FIG. 6, the pair of leg pieces 10 Since the third through hole 122 exists as a portion further inwardly recessed in the second recess 121 provided on one side, it is possible to achieve the effect of making it easier to place the fingertip.

Generally, if the part where the fingertip of the user of the tweezers 1 is placed is too close to the tip 10X, the finger comes into contact with the skin (skin such as the face) in the vicinity of the targeted hair when removing the targeted hair. Therefore, the operability of the tweezers 1 deteriorates. On the contrary, when the part where the fingertip of the user of the tweezers 1 is placed is on the base end 10Y side of the center of the longitudinal direction L of the tweezers 1, even if the fingertip does not slip and is stable, it is difficult to apply force with the finger and the tip 10X is operated. The sex gets worse. Therefore, in the tweezers 1 according to the present embodiment, as shown in FIGS. 4 and 5, the first through hole 101 and the second through hole 102 are arranged in the above-mentioned second region R2.

1 ... Tweezers 10 ... Arm piece 10X ... Tip 10Y ... Base end 10Z ... Boundary 10A ... Tip 10B ... First intermediate part 10C ... Second intermediate part 10D ... Base end 101 ... First through hole 102 ... Second penetration Hole 11 ... First member 11A ... First resin part 11A1 ... First resin convex portion 11B ... Second resin part 11B1 ... First resin recess 12A ... Fourth resin part 12A1 ... Second resin recess 12B ... Third resin part 12B1 ... Second resin convex portion 111 ... First concave portion 112 ... Convex portion 12 ... Second member 121 ... Second concave portion 122 ... Third through hole R1 ... First region R2 ... Second region D1 ... Upward D2R ... Right direction D2L ... Left direction D3 ... Forward direction T ... Tweezers thickness direction L ... Tweezers longitudinal direction

Claims

Tweezers
A pair of arm pieces made of metal and
It is provided with a first member and a second member made of synthetic resin.
Each of the pair of arm pieces has a tip portion including the tip of the tweezers, a first intermediate portion, a second intermediate portion, and a base end portion including the base end of the tweezers, respectively.
The length of the tweezers in the thickness direction between each of the first intermediate portions is configured to increase from the tip end to the base end.
The length in the thickness direction between each of the second intermediate portions is configured to become shorter from the tip end to the base end.
The pair of arm pieces are opposed to each other with their tips slightly separated from each other, and are connected at the base end portion.
The first member is composed of a first resin part and a second resin part.
The second member is composed of a third resin part and a fourth resin part.
A first through hole is formed in one of the pair of arm pieces.
A second through hole is formed on the other side of the pair of arm pieces.
The first resin part and the second resin part have a structure in which one of the pair of arm pieces is sandwiched through the first through hole.
The third resin part and the fourth resin part have a structure in which the other of the pair of arm pieces is sandwiched through the second through hole.
The first member has a first recess that is recessed inward on the outer surface of the pair of arm pieces in the thickness direction.
The second member has a second recess that is recessed inward on the outer surface of the pair of arm pieces.
A convex portion is formed on the inside of the first member.
The second member is formed with a third through hole that penetrates between the outer surface and the inner surface in the second recess.
The convex portion is configured so that it can be fitted into the third through hole.
The convex portion is configured so as not to protrude outward from the third through hole.
The first through hole and the second through hole are arranged on the tip side of the boundary between the first intermediate portion and the second intermediate portion.
When the region between the tip and the boundary is divided into a first region on the tip side and a second region on the boundary side, the length of the first region in the longitudinal direction of the tweezers and the second region The ratio of the lengths in the longitudinal direction of the above is configured to be 1.5: 3.5.
The tweezers, wherein the first through hole and the second through hole are arranged in the second region.
The first resin part has a first resin convex portion and has a convex portion.
The second resin part has a first resin recess, and the second resin part has a first resin recess.
The first resin convex portion is configured to fit into the first resin concave portion via the first through hole.
The third resin part has a second resin convex portion and has a convex portion.
The fourth resin part has a second resin recess, and has a second resin recess.
The tweezers according to claim 1, wherein the second resin convex portion is configured to fit into the second resin concave portion through the second through hole.