JP2017192458A - Pincher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pincher in which a short and small pinched object can reliably be pinched in a simple constitution.SOLUTION: A pincher 1 is configured such that an overall shape is a substantially symmetrical V-shape and a pair of elastic pinching pieces 10, 11 is included in the tip side. One side pinching surface 10a is plane, and the other side pinching surface 11a is a reduced plane formed by notching an opposed plane rear end side formed in plane symmetry on the plane. A pinched object is pinched by the one side pinching surface 10a and the other side pinching surface 11a. Preferably, the other side pinching surface 11a may be 1/3 to 1/5 of a length in the tip direction to the one side pinching surface 10a. The pinched object can be pinched by a protrusion 11h and the one side pinching surface 10a.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a holding tool. More specifically, the present invention relates to a clamping tool that can securely clamp a short object to be clamped.

Conventionally, there are tweezers and tweezers, for example, as tools for holding a short object to be clamped. A tweezer 9 as a holding tool shown in FIG. 8A has a symmetrical V-shape as a whole and is provided with a pair of elastic holding pieces 10 and 10 on the tip side, and both holding surfaces 10a made of opposed planes. 10a.
In this case, if it is lightly clamped, both the clamping surfaces come into contact with each other as shown in FIG. However, in order to clamp the object to be clamped, it is necessary to apply a certain amount of force. As shown in FIG. 8 (c), when the clamping surface lower ends 10k are pressed to each other, the tip is opened by bending. The clamping force is maximum at the lower end portion and becomes smaller at the tip end.
When the object 93 is long and exceeds the length of the clamping surface 10a as shown in FIG. 9A, it can be strongly pressed and held at the lower end, but as shown in FIG. When 93 is short and shorter than the length of the clamping surface 10a, sufficient clamping force cannot be obtained. Further, as shown in FIG. 8C, in the case of the short hair 95 protruding from the skin 97, there is a case where it cannot be pinched due to bending.
In order to prevent the leading end from bending, the clamping device 13 shown in FIG. 10 has the clamping surfaces 90a and 90a formed small. Depending on the bending associated with the clamping, the degree of opening of the tip is small, but as shown in FIG. 10 (a), there is a problem in that the clamping surfaces are easily misaligned by the bending caused by clamping. Furthermore, depending on the strength of clamping, as shown in (b), the clamping surfaces may come off.

Here, tweezers in which fine uneven lines are provided on the clamping surface have been proposed (see, for example, Patent Document 1).
According to the tweezers described in Patent Document 1, the hair can be held so as not to slip over a slightly wide surface formed by a plurality of uneven lines. This clamping tool is suitable for clamping a long hair to some extent by a plurality of uneven lines.

Noto 3178053

  However, since the holding tool of Patent Document 1 has a plurality of uneven lines, it has an effect of holding long hairs in a wide range, while the pressing force applied to each protrusion and depression is reduced accordingly, and the holding force as a whole is reduced. Becomes weaker. Therefore, it is not suitable for strongly pinching short hairs.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a clamping tool that can securely clamp a short object with a simple configuration.

The present invention is as follows.
1. The overall shape is a substantially symmetrical V-shape and is provided with a pair of elastic clamping pieces on the tip side, wherein one clamping surface is a plane, and the other clamping surface is symmetrical with respect to the plane. A holding device, which is a reduced flat surface obtained by cutting out the rear end side of an opposing flat surface, and holds an object to be held between the one side holding surface and the other side holding surface.
2. The other side clamping surface has a length in the tip direction of 1/3 to 1/5 with respect to the one side clamping surface. The clamping tool according to the above.
3. The overall shape is a substantially symmetrical V-shape, and is provided with a pair of elastic clamping pieces on the tip side, the one side clamping surface is a flat surface, and the other side clamping surface faces the one side clamping surface A holding tool characterized in that a protrusion is provided on the surface and the object to be clamped is held between the protrusion and the one-side holding surface.
4). 2. The protrusion is a linear protrusion perpendicular to the direction of clamping. The clamping tool according to the above.
5). 2. The one-side clamping surface is inclined rightward or leftward with respect to the symmetry plane. Or 4. The clamping tool according to the above.
6). The overall shape is a substantially symmetrical V-shape, and is provided with a pair of elastic clamping pieces on the tip side, the one side clamping surface forming a curved concave surface or a curved convex surface with respect to the symmetrical surface, and the other side A clamping device, wherein a clamping surface is provided with a projection on a surface facing the one-side clamping surface, and the object to be clamped is clamped between the projection and the one-side clamping surface.
7). 1. The clamping device is tweezers, thorns or fish ossicles. To 6. The holding tool according to any one of the above.

1. In the clamping device according to the first aspect of the present invention, since the one side clamping surface is a flat surface and the other side clamping surface is a reduced flat surface cut out from the rear end side of the opposing plane, even if the clamping piece does not It is possible to securely hold a short and small object to be clamped.
2. According to a second aspect of the present invention, there is provided the holding tool according to the first aspect, wherein the other-side holding surface has a length in the tip direction of 1/3 to 1 / with respect to the one-side holding surface. Since it is 5, a short and small to-be-clamped thing can be clamped still more reliably.
3. In the holding tool according to the third aspect of the invention, the one side holding surface is a flat surface, and the other side holding surface is provided with a protrusion on the surface facing the one side holding surface. The object to be clamped can be securely clamped.
4). According to a fourth aspect of the present invention, in the holding tool according to the third aspect, since the protrusion is a linear protrusion perpendicular to the direction formed by the holding, the linear protrusion and the plane are short. The object to be clamped can be securely clamped.
5). According to a fifth aspect of the present invention, there is provided the holding tool according to the third or fourth aspect, wherein the linear protrusion and the flat surface are formed even when the plane is inclined rightward or leftward with respect to the symmetry plane. Thus, it is possible to securely hold a short object to be sandwiched.
6). In the clamping device according to the invention described in claim 6, since the one-side clamping surface forms a curved concave surface or a curved convex surface with respect to the symmetrical surface, the object to be clamped can be reliably secured by the curved concave surface or the curved convex surface and the projection. Can be pinched.
7). According to a sixth aspect of the present invention, there is provided a clamping device according to any one of the first to sixth aspects, wherein the clamping device according to any one of the first to sixth aspects is tweezers, tweezers, or small bones for fish. Is particularly effective.

It is a typical perspective view of the clamping tool which concerns on Example 1 of this invention. It is a front view which shows the front-end | tip part of the clamping tool which concerns on Example 1, (a) is the state which is not clamped, (b) is the state which made the clamping pieces lightly contact, (c) The clamping pieces are clamped strongly It shows a state where the tip is opened due to bending. It is a front view which shows the front-end | tip part of the clamping tool which concerns on Example 1, (a) The state which clamped the clamping pieces lightly and the contact surface shifted | deviated, (b) The clamping surfaces were clamped somewhat strongly, and a contact surface is It shows a misaligned state. (A) Front view showing the distal end portion of the clamping tool according to the second embodiment, (b) Front view showing the distal end portion of the clamping tool according to the third embodiment, and (c) The distal end portion of the clamping tool according to the fourth embodiment. FIG. (A) Front view showing the distal end portion of the clamping tool according to the fifth embodiment, (b) Front view showing the distal end portion of the clamping tool according to the sixth embodiment, and (c) The distal end portion of the clamping tool according to the seventh embodiment. FIG. FIG. 10 is a side view showing a state in which a test thread is clamped using the clamping tool according to Example 8. It is a schematic diagram which shows a mode that the clamping force is tested using the clamping tool which concerns on Example 8. FIG. It is a front view which shows the front-end | tip part of the conventional clamping tool, (a) is the state which is not clamped, (b) is the state which made the clamping pieces lightly contact, (c) The clamping pieces are clamped strongly. It shows the state that the tip is open due to the distance. Using a conventional clamping tool, (a) a state in which a long thread protruding from the clamping surface is clamped, (b) a state in which a thread having the same length as that of the clamping surface is clamped, (c) short skin hair It is a front view which shows the state which was going to clamp. In a holding tool having a small holding surface, (a) a front view showing that the holding surface is easily displaced even if lightly held, (b) a front view showing an example in which the holding surface is displaced due to strong clamping. It is. This is a state before the clamping pieces are brought into contact with each other according to the product 2. The state which concerns on the implementation product 2 and the clamping pieces were made to lightly contact is shown. The state related to the implementation product 2 shows a state where the clamping pieces are strongly clamped. A state in which the thread is lightly clamped according to the product 2 is shown. A state in which the yarn is strongly clamped according to the product 2 is shown. This is a state before the clamping pieces are brought into contact with each other in the comparative product 2. The state which concerns on the comparative product 2 and the clamping pieces were made to contact lightly is shown. The state related to the comparative product 2 shows a state where the clamping pieces are strongly clamped. The state related to the comparative product 2 shows a state where the yarn is lightly clamped. The state related to the comparative product 2 shows a state where the yarn is strongly clamped. This is a state before the clamping pieces are brought into contact with each other according to the product 2. The state which concerns on the implementation product 2 and the clamping pieces were made to lightly contact is shown. The state related to the implementation product 2 shows a state where the clamping pieces are strongly clamped. A state in which the thread is lightly clamped according to the product 2 is shown. A state in which the yarn is strongly clamped according to the product 2 is shown.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, this invention is not restricted to what is shown to the specific example described in this figure, In the technical scope of this invention, it can change variously according to the objective and the use.

[Example 1]
As shown in FIGS. 1 and 2, the holding tool 1 according to the first embodiment includes a pair of elastic holding pieces 10 and 11 on the distal end side with a substantially symmetrical V-shape as a whole.
The one side clamping surface 10a is a plane, and the other side clamping surface 11a is a reduced plane obtained by cutting out the rear end side of the opposing plane formed symmetrically with the plane. That is, as shown in FIG. 2A, the other-side holding surface 11a is a notch plane 11b that cuts an opposing plane indicated by a broken line formed symmetrically with the one-side holding surface 10a at the upper end 11h and the lower end 11k. Notched and formed.

Although the notch dimension is not particularly limited, as shown in FIG. 2B, the length in the tip direction of the other side clamping surface 11a is t, and the length in the tip direction of the one side clamping surface 10a is s. When t / s = 1/3 to 1/5, it is preferable.
By doing so, as shown in FIG. 2C, when the clamping pieces 10 and 11 are strongly clamped, the upper end 11h serves as a protrusion and the opening A at the tip is reduced. For this reason, it becomes easy to pinch a short thing to be clamped.

Further, as shown in FIG. 3 (a), even when the tips of the one side clamping surface 10a and the other side clamping surface 11a are displaced during clamping, the one side clamping surface 10a is wide, so the other side clamping surface 11a is It does not come off from the one side clamping surface 10a.
Furthermore, as shown in FIG. 3 (b), even if the holding pieces 10 and 11 are not held firmly, the other holding surface 11a does not come off from the one holding surface 10a.

[Example 2]
The sandwiching tool 2 according to the second embodiment has a substantially symmetrical V shape as a whole, and includes a pair of elastic sandwiching pieces 10 and 20 on the distal end side as shown in FIG.
The one side clamping surface 10a is a flat surface, and a rectangular parallelepiped protrusion 20a perpendicular to the direction of the other side clamping surface is formed. The object to be sandwiched can be sandwiched between the projection surface 20h and the one-side sandwiching surface 10a. Since the protrusion 20a is formed on the upper side of the other side clamping surface, even a small object to be clamped can be clamped.

[Example 3]
The holding tool 3 according to the third embodiment has a substantially symmetrical V-shape as a whole, and includes a pair of elastic holding pieces 10 and 30 on the distal end side as shown in FIG.
One side clamping surface 10a is a flat surface, and the tip side of the other side clamping surface is formed in a curved convex shape, and the lower end of the curved portion is a linear protrusion 30h orthogonal to the direction in which the clamping piece 30 is bent. Is formed. The object to be clamped can be clamped by the protrusion 30h and the one-side clamping surface 10a. Since the protrusion 30h is formed on the upper side of the other side clamping surface, even a small object to be clamped can be clamped.

[Example 4]
The holding tool 3 according to the fourth embodiment has a substantially symmetrical V shape as a whole, and includes a pair of elastic holding pieces 10 and 40 on the distal end side as shown in FIG.
The one side clamping surface 10a is a flat surface, and a linear protrusion 40h that protrudes in a mountain shape with respect to the one side clamping surface 10a and is orthogonal to the direction in which the clamping piece 40 is bent is formed near the tip of the other side clamping surface. Has been. The object to be clamped can be clamped by the protrusion 40h and the one-side clamping surface 10a. Since the protrusion 40h is formed on the upper side of the other side clamping surface, even a small object to be clamped can be clamped.

[Example 5]
The sandwiching tool 5 according to the fifth embodiment has a substantially symmetrical V-shape as a whole, and includes a pair of elastic sandwiching pieces 15 and 30 on the distal end side as shown in FIG.
In the third embodiment, the one-side clamping surface 15a is inclined leftward with respect to the symmetry plane, and the object to be clamped can be clamped by the protrusion 30h and the one-side clamping surface 15a. In this case, the same effects as those of the third embodiment are obtained.

[Example 6]
The sandwiching tool 6 according to the sixth embodiment has a substantially symmetrical V-shape as a whole, and includes a pair of elastic sandwiching pieces 17 and 30 on the distal end side as shown in FIG.
In the third embodiment, the one-side sandwiching surface 17a is inclined rightward with respect to the symmetry plane, and the object to be sandwiched can be sandwiched between the protrusion 30h and the one-side sandwiching surface 17a. Even in this case, the same effects as those of the third embodiment are obtained.

[Example 7]
The sandwiching tool 7 according to the seventh embodiment has a substantially symmetrical V-shape as a whole, and includes a pair of elastic sandwiching pieces 19 and 30 on the distal end side as shown in FIG.
In the third embodiment, the one-side clamping surface 19a forms a curved concave surface with respect to the symmetry plane, and the object to be clamped is clamped by the curved concave surface that is the one-side clamping surface 19a and the protrusion 30h. Even in this case, the same effects as those of the third embodiment are obtained.
Moreover, even if it is a curved convex surface instead of a curved concave surface, a to-be-clamped object can be clamped with a curved convex surface and protrusion 30h, and there exists an effect similar to Example 3 also in this case.

(Tensile test)
[Test Example 1]
As the test product 1 for the test, a holding tool 8 shown in FIG. 6 was prepared.
The holding tool 8 has a substantially left-right symmetric V-shape and is provided with a pair of elastic holding pieces 10 and 25 on the tip side. The one-side clamping surface 10a is a flat surface, and the other-side clamping surface 25a is a reduced plane obtained by notching the rear end side of the opposing plane formed symmetrically with the plane.
The holding tool 8 is manufactured by processing the product name: tweezers 2 (manufactured by Ceria Co., Ltd.) (the length in the width direction of the one side holding surface 10a: about 2 mm, the length in the tip direction: about 0.9 mm). That is, when the length in the width direction of the front-side virtual plane is u and the length of the other-side holding surface 25a is t, processing is performed so that t: s = 1: 3.
As the holding tool 9 according to the comparative product 1, a product before processing of the product 1 was prepared.

(1) Test Method As shown in FIG. 7, a resin thread 93 is hooked on a hook 98a of a scale 98 installed and fixed on a table, and the tip of the thread 93 is the product 1 as shown in FIG. About 0.9 mm (length s in FIG. 6) from the tip of the thread 93 was clamped by the clamping piece of the embodiment product 1 so as to be the rear end of the clamping surface 10a. As the thread 93, Kureha Science No. 4 (diameter: 0.330 mm fluorocarbon 100%) was used, and as the scale 98, only 2 kg of Shinwa hand (part number 74453) was used.
And the clamping tool was pulled and the moment when the thread | yarn 93 removed from the goods 1 was measured visually, and the scale (g) of the balance was made into clamping force. After the measurement, the clamped portion was cut each time, and a new yarn was fed out for testing.
The comparative product 1 was also tested in the same manner.
(2) Test results

As shown in Table 1, it was found that, compared with the comparative product 1, the practical product 1 had a larger average 44% clamping force.

[Test Example 2]
Similar to Test Example 1, a tensile test was performed using Comparative Product 1 and Example Product 1. Unlike Test Example 1, the test piece 1 has a length of 1 mm or more (length s or more in FIG. 6) from the tip of the thread 93 so that the tip of the thread 93 shown in FIG. Clamped with a clamping piece. The other conditions and instruments of the test method were the same as in Test Example 1.
(2) Test results

As shown in Table 2, it was found that, compared with the comparative product 1, the practical product 1 has a larger holding force of 21% on average.
It can be said that Test Example 1 has a larger clamping force. That is, the holding tool according to the present invention. It was proved that the effect of exerting the clamping force on a short sandwiched object is particularly large.

[Test Example 3]
For Test Example 3, the holding tool was tested under the trade name: Matsukage (Echo Metal Co., Ltd.) (length on one side holding surface 10a in the width direction: about 3 mm, length in the tip direction: about 1 mm) The same processing as the product 1 was performed to obtain an implementation product 2. As the holding tool 9 according to the comparative product 2, a product before processing of the embodiment product 2 was prepared.
Similar to Test Examples 1 and 2, a tensile test was performed using Comparative Product 2 and Example Product 2.
Also in Test Example 3, about 1 mm (length s in FIG. 6) from the tip of the yarn 93 was clamped by the clamping piece of the test sample 1 so that the tip of the yarn 93 became the rear end of the test product 2. The other conditions and instruments of the test method were the same as in Test Example 1.
(2) Test results

As shown in Table 3, it was found that compared to the comparative product 2, the practical product 2 had a larger holding force of 72% on average.
Also in Test Example 3, it was demonstrated that the holding tool according to the present invention has a large effect of exerting a holding force against a short object to be held.

<Explanation of the effect by the photograph>
The effects of the product 2 according to Test Example 3 and the comparative product 2 will be described with reference to photographs. FIG. 11 to FIG. 15 are explanatory views of the embodiment product 2, FIG. 11 is a state before the holding pieces are brought into contact with each other, FIG. 12 is a state in which the holding pieces are brought into light contact, and FIG. It is in a pinched and bent state. As shown in FIG. 13, even when the sandwiching pieces are strongly sandwiched, the tips of the sandwiching pieces are in contact with each other, and the tips are not open. 14 shows a state where the yarn is lightly clamped, and FIG. 15 shows a state where the yarn is strongly clamped. Thus, it can be seen that even a short thread can be securely held at the tip.

  16 to 20 are explanatory views of the comparative product 2, FIG. 16 is a state before the holding pieces are brought into contact with each other, FIG. 17 is a state in which the holding pieces are brought into light contact, and FIG. It is in a pinched and bent state. As shown in FIG. 18, when the sandwiching pieces are strongly sandwiched, the leading ends of the sandwiching pieces are opened. FIG. 19 shows a state where the yarn is lightly clamped, and FIG. 20 shows a state where the yarn is strongly clamped. In such a lightly clamped state, it can be seen that even if the thread is clamped across the entire clamping surface, the tip part opens slightly, and if it is clamped strongly, the tip part opens greatly, so that the clamping force is weakened.

Further, the effects of the other product 3 will be described with reference to photographs. The implementation product 3 is the same as the implementation product 1 under the trade name: Matsukage (Echo Metal Co., Ltd.) (the length in the width direction of the one side clamping surface 10a: about 3 mm, the length in the tip direction: about 1 mm). The processed product 3 was processed.
FIG. 21 to FIG. 25 are explanatory diagrams of the embodiment product 3, FIG. 21 is a state before the holding pieces are brought into contact with each other, FIG. 22 is a state in which the holding pieces are brought into light contact, and FIG. It is in a pinched and bent state. As shown in FIG. 23, even when the sandwiching pieces are strongly sandwiched, the tips of the sandwiching pieces are in contact with each other and the tips are not open. FIG. 24 shows a state where the yarn is lightly clamped, and FIG. 25 shows a state where the yarn is strongly clamped. Thus, it can be seen that even a short thread can be securely held at the tip.

1, 2, 3, 4, 5, 6, 7, 8... Holding tool 10, 11, 15, 17, 19... Holding pieces 10a, 15a, 17a, 19a. , 20a, 25a ············ Holding surface 11h, 20h, 30h ··············································

Claims (7)

  The overall shape is a substantially symmetrical V-shape and is provided with a pair of elastic clamping pieces on the tip side, wherein one clamping surface is a plane, and the other clamping surface is symmetrical with respect to the plane. A holding device, which is a reduced flat surface obtained by cutting out the rear end side of an opposing flat surface, and holds an object to be held between the one side holding surface and the other side holding surface.   The clamping device according to claim 1, wherein the other-side clamping surface has a length in the tip direction of 1/3 to 1/5 with respect to the one-side clamping surface.   The overall shape is a substantially symmetrical V-shape, and is provided with a pair of elastic clamping pieces on the tip side, the one side clamping surface is a flat surface, and the other side clamping surface faces the one side clamping surface A holding tool characterized in that a protrusion is provided on the surface and the object to be clamped is held between the protrusion and the one-side holding surface.   The holding tool according to claim 3, wherein the protrusion is a linear protrusion orthogonal to a direction formed by the holding.   The holding tool according to claim 3 or 4, wherein the one-side holding surface is inclined rightward or leftward with respect to the symmetry plane.   The overall shape is a substantially symmetrical V-shape, and is provided with a pair of elastic clamping pieces on the tip side, the one side clamping surface forming a curved concave surface or a curved convex surface with respect to the symmetrical surface, and the other side A clamping device, wherein a clamping surface is provided with a projection on a surface facing the one-side clamping surface, and the object to be clamped is clamped between the projection and the one-side clamping surface.   The holding tool according to any one of claims 1 to 6, wherein the holding tool is tweezers, thorns, or fish ossicles.