JP2018144185A - Wire correction tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire correction tool that has excellent portability, can be easily adjusted in accordance with the direction of wire correction, the degree of correction and a wire diameter, and is capable of improving the efficiency of a wire correction work.SOLUTION: A wire correction tool 2 comprises: a pair of correction arms 4 and 4 having correction parts 4a and 4b for a wire at one end, respectively; a first connection part 8 for connecting the respective correction arms 4 so that the respective correction parts 4a and 4b can separate from and make contact with each other; and wire insertion holes 12 (12A and 12B) formed in the respective correction parts 4a and 4b in response to separation and contact between the respective correction parts 4a and 4b. A wire is pinched between the correction parts 4a and 4b and is inserted into the wire insertion holes 12 (12A and 12B) so that the wire is corrected.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wire straightening tool.

  Patent Document 1 discloses a wire straightening device that straightens a wire by inserting it between straightening rollers. Thereby, it is said that wrinkles such as wire bending or bending in the storage state or the use state can be removed, and the straightness of the wire can be improved.

JP 2016-16415 A

  The wire straightening device of Patent Document 1 includes a support base on which two pairs of straightening rollers are erected, a stand for sandwiching each straightening roller, an adjustment tool for adjusting the distance between the two pairs of straightening rollers, and two pairs of pinch rolls Etc. Since such a wire straightening device is large-scale and has a large outer shape and weight, it is assumed that the wire straightening device is used by being fixedly installed in a predetermined place such as a factory.

  Therefore, when it is necessary to correct the wire, the wire in the storage state is moved to the device, or the wire in use such as lifting is removed and moved to the device, and then the wire is further inserted into the device. Need to do. This takes time and labor for the wire correction work, and the work efficiency decreases.

  In addition, since it is necessary to adjust the distance between the correction rollers with the adjustment tool described above according to the direction of the wrinkles attached to the wire, the degree of wrinkles, or the wire diameter, the work efficiency of the wire correction work may be further reduced. There is also.

  The present invention has been made in view of such problems, and the object thereof is excellent in portability, easy adjustment according to the wire correction direction, correction degree, and wire diameter, and wire correction work. It is providing the wire straightening tool which can improve the working efficiency of this.

  In order to achieve the above object, a wire straightening tool according to the present invention includes a pair of straightening arms each having a straightening portion of a wire at one end, and a first connecting portion that connects each straightening arm so that the straightening portions can be separated from each other. A wire insertion hole is formed in each correction part as the correction parts are separated from each other, and the wire is inserted between the correction parts and inserted into the wire insertion hole to correct the wire.

Preferably, a plurality of wire insertion holes are formed with different hole diameters.
Preferably, the wire insertion hole has a chamfered outer edge.
Preferably, the wire insertion holes have different hole lengths according to different hole diameters.
Preferably, a pair of handles respectively connected to the other end of each correction arm, and each handle and each correction arm are connected to each other, and each handle is connected to each other so that each correction part can be separated from each other. And a second connecting portion for interlocking the arm with each handle.

Preferably, one of the straightening portions has a concave portion that is concave in the approaching direction of each straightening portion, and the other of the straightening portions is convex in the approaching direction, and the concave portion is formed as the straightening portions approach each other. The wire insertion hole is formed as the concave portion and the convex portion are separated from each other.
Preferably, the convex part forms a part of the wire insertion hole, has a concave groove extending in the wire insertion direction, the concave part has a pair of side walls opposed to the insertion direction, and each side wall has Each has a notch forming a part of the wire insertion hole.

  Preferably, the wire insertion hole includes at least a large-diameter hole and a small-diameter hole having a hole diameter smaller than that of the large-diameter hole, and the convex portion includes a large-concave groove forming a part of the large-diameter hole, and a small-diameter hole. And each side wall forms a part of a small-diameter hole and an important part that forms a part of a large-diameter hole. In addition, each of them includes a small notch whose notch range is smaller than an important notch.

  Preferably, the convex portion has a stepped shape from a large convex in which a large concave groove is formed and a small convex in which a small concave groove is formed and the width in the insertion direction is smaller than the large convex. The pair of large walls in which the important notches are formed and the pair of small walls in which the small notches are formed and the separation distance in the insertion direction is smaller than each of the large walls are stepped.

  According to the wire straightening tool of the present invention, it is excellent in portability, can be easily adjusted according to the straightening direction of the wire, the straightening degree, and the wire diameter, and the work efficiency of the wire straightening work can be improved.

It is a front view which shows the wire straightening tool which concerns on 1st Embodiment of this invention. It is a figure which shows the state in which each correction | amendment part of FIG. 1 formed the large diameter hole. It is a figure which shows the state in which each correction | amendment part of FIG. 1 formed the small diameter hole. It is the figure which looked at each correction arm of FIG. 1 from the A side of FIG. It is the figure which looked at each correction arm of FIG. 1 from the B side of FIG. It is the figure which looked at the correction | amendment part 4b of FIG. 1 from the C side of FIG. It is the figure which looked at the correction | amendment part 4a of FIG. 1 from the A side of FIG. It is a figure which shows an example of the correction | amendment work of the wire by an operator. It is a figure which shows the state in which a large diameter wire is corrected in the DD arrow cross section of FIG. It is a figure which shows the state in which a small diameter wire is corrected in the EE arrow cross section of FIG. It is the figure which looked at the correction | amendment part 4b which concerns on 2nd Embodiment of this invention from the C side of FIG. It is the figure which looked at the correction | amendment part 4a which concerns on 2nd Embodiment of this invention from the A side of FIG. It is a figure which shows the state in which a small diameter wire is corrected in the EE arrow cross section of FIG. 2 in the case of 2nd Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
As shown in FIG. 1, a wire straightening tool 2 (hereinafter also simply referred to as a tool) of this embodiment includes a pair of straightening arms 4 and 4 each having straightening portions 4a and 4b at one end, and straightening arms 4 and 4 respectively. And a pair of handles 6 and 6 respectively connected to the other end. The tool 2 is a small portable tool having a weight of 1 to 3 kg that is easy to carry. The wire 2 is bent or bent in the storage state or in the use state by correcting the wire by sandwiching the wire between the correction portions 4a and 4b. Used to remove wrinkles and improve the straightness of the wire.

  The correction arms 4 are connected to each other by the first connecting portion 8 so that the correction portions 4a and 4b can be separated from each other in the separation / contact direction X. The first connecting portion 8 is formed on the pair of connecting plates 8 a, the correction arms 4, the two bolts 8 b inserted through the bolt holes formed in the connection plates 8 a, the two nuts 8 c, and the correction arms 4. It is formed from the pivot tooth 8d and the like. Each orthodontic arm 4 is connected and supported by a pair of connecting plates 8a, and is rotatable in the contact / separation direction X with the pivot tooth 8d as a fulcrum. Each handle 6, 6 is connected to each correction arm 4, 4 by a second connecting part 10.

  The second connecting portion 10 is formed of two bolts 10a inserted through bolt holes formed in each correction arm 4 and each handle 6, two nuts 10b, and the like. The second connecting portion 10 also connects the handles 6 and 6 to each other, and links the correcting arms 4 and 4 to the handles 6 and 6 so that the correcting portions 4a and 4b can be separated from each other. Due to the lever ratio combining the two “lever principle” in the first and second connecting portions 8, 10, a small gripping force is applied to the handles 6, 6 tens of times the gripping force. It is possible to clamp the wire by each of the correction portions 4a and 4b by the clamping force.

  Here, as shown in FIGS. 2 and 3, the wire insertion holes 12 are formed in each of the correction portions 4 a and 4 b as the correction portions 4 a and 4 b are separated from each other. The wire 2 can be corrected by the tool 2 by inserting the wire between the correction portions 4a and 4b and inserting the wire into the wire insertion hole 12. In the tool 2 of the present embodiment, two wire insertion holes 12 having different diameters of the large diameter hole 12A and the small diameter hole 12B are formed.

  Specifically, as shown in FIG. 2, by operating each handle 6, a large-diameter hole 12A having an inner diameter substantially the same as the outer diameter of the large-diameter wire is formed on the distal end side of each correction portion 4a, 4b. The On the other hand, as shown in FIG. 3, by further expanding each handle 6 in the case of FIG. 2, the first connecting portion 8 side of each correction portion 4a, 4b has a smaller diameter than the large diameter wire. A small-diameter hole 12B having an inner diameter substantially the same as a small-diameter wire having an outer diameter is formed. That is, in the tool 2, the large diameter hole 12A or the small diameter hole 12B can be selected according to the outer diameter of the wire to be corrected by operating the handles 6 to separate and connect the correction portions 4a and 4b.

  As shown in FIG.4 and FIG.5, the concave part 14 which becomes concave in the mutual approach direction Y of each correction | amendment part 4a, 4b shown in FIG. 5 is formed in the correction part 4a. On the other hand, the correction part 4b is convex in the approach direction Y, and has a convex part 16 that is inserted into the concave part 14 as the correction parts 4a and 4b approach each other. The large-diameter hole 12A and the small-diameter hole 12B constituting the wire insertion hole 12 are formed when the concave portion 14 and the convex portion 16 are separated from each other.

  Specifically, as shown in FIG. 6, the convex portion 16 has a concave groove 18 extending in the thickness width direction of the correction arm 4, in other words, in the wire insertion direction Z. The concave groove 18 is a part of the wire insertion hole 12. Forming part. More specifically, the concave groove 18 includes a large concave groove 18A having a circular arc shape that forms a part of the large diameter hole 12A and a small concave groove 18B having a circular arc shape that forms a part of the small diameter hole 12B. ing. The small groove 18B has a groove depth smaller than that of the large groove 18A.

Also, as shown in FIG. 2, a curved surface 20 such as an R surface with chamfered corners is formed at the arc-shaped end portions in the insertion direction Z of the large groove 18A and the small groove 18B. .
On the other hand, as shown in FIG. 7, the recess 14 is formed by a pair of side walls 22, 22 that face the insertion direction Z.

  Each side wall 22 is formed with a notch 24 that forms a part of the wire insertion hole 12. Specifically, the notch 24 includes an arcuate important notch 24A that forms a part of the large-diameter hole 12A and an arcuate small notch 24B that forms a part of the small-diameter hole 12B. The small cutout 24B has a cutout range (cutout range) smaller than the important cutout 24A. Further, as shown in FIG. 3, a curved surface 26 such as an R surface with chamfered corners is formed at the arc-shaped end portions in the insertion direction Z of the important notches 24A and the small notches 24B. Thus, the large diameter hole 12A and the small diameter hole 12B, which are the wire insertion holes 12, are both formed with chamfered outer edges.

  As shown in FIG. 8, by using the tool 2, for example, a correction operation for removing wrinkles such as bending of the wire W without removing the wire W in a used state such as hanging as illustrated in the used state. Can be done. As a work procedure, the operator first holds the vicinity of the wire W between the correction portions 4a and 4b by performing an expansion operation with both hands as shown in the drawing. The entire tool 2 or each handle 6 may be further miniaturized so that each handle 6 can be operated with one hand.

  More specifically, as shown in FIG. 9, when the wire W is a large-diameter wire, the operator first widens each handle 6 to thereby expand the large groove 18 </ b> A of the correction portion 4 b and the correction. The vicinity of the bending point P (curvature radius r) of the wire W is sandwiched between the important notch 24A of the portion 4a and the wire W is inserted into the large-diameter hole 12A.

  Next, the operator operates each handle 6 with both hands while the wire W is inserted into the large-diameter hole 12A, and corrects the bending of the wire W, for example, the correction direction F indicated by the arrow in FIG. Twist the tool 2 itself. As a result, reverse bending force against the bending is applied to the bending portion P of the wire W, and the wrinkles such as bending and bending of the wire W are removed and corrected, and the straightness of the wire W can be recovered. As described above, since the outer edge of the large-diameter hole 12A that is the wire insertion hole 12 is chamfered, the wire W is prevented from being damaged or cut when a reverse brazing force is applied to the wire W.

  As shown in FIG. 10, when the wire W is a small-diameter wire, the operator first opens each handle 6 so that the small groove 18B of the correction portion 4b and the correction portion 4a face each other. The vicinity of the bent portion P (curvature radius r1) of the wire W is sandwiched between the small notch 24B and the wire W is inserted into the small diameter hole 12B. Next, the operator operates each handle 6 with both hands and corrects the bending of the wire W in the same manner as when using the large diameter hole 12A with the wire W inserted through the small diameter hole 12B. Twist the tool 2 itself to F or the like.

  Thus, by applying a reverse brazing force against the bending to the bending portion P of the wire W, the wrinkles of the wire W are removed and corrected. As described above, since the outer edge of the small-diameter hole 12B, which is the wire insertion hole 12, is chamfered, the wire W when the reverse brazing force is applied to the wire W, as in the case of using the large-diameter hole 12A. Damage and cutting are prevented.

  As described above, the wire straightening tool 2 of the present embodiment is excellent in portability, can be easily adjusted according to the straightening direction, straightening degree, and wire diameter of the wire, and can improve the work efficiency of the wire straightening work. . Specifically, since the tool 2 is a small and easy-to-carry portable tool with a weight of 1 to 3 kg, the wire in a storage state is moved, or the wire in a use state such as hanging is removed and moved. Even if it does not, a wire correction operation | work is possible by taking the tool 2 to a wire. Therefore, the work efficiency of the wire straightening operation can be improved as compared with the case where a conventional fixed wire straightening device is used.

  Further, the wire correction can be performed by a simple operation of simply twisting the tool 2 itself by sandwiching the vicinity of the bent portion P of the wire between the correction portions 4a and 4b. Accordingly, unlike the prior art, it is not necessary to temporarily wire the wire by unwinding the wire in order to insert the wire between the straightening rollers of the straightening device. Can be improved.

  Further, the twisting direction and the twisting degree of the tool 2 are adjusted according to the direction and the degree of the wrinkle attached to the wire, and the large diameter hole 12A or the small diameter hole 12B of the wire insertion hole 12 is selected according to the wire diameter. By simply doing, wire correction can be performed efficiently. Therefore, unlike the conventional case, when setting the wire to the apparatus, it is not necessary to consider the direction of the wrinkle attached to the wire and the degree of wrinkle, and it is not necessary to adjust the distance between the correction rollers according to the wire diameter. Therefore, the work efficiency of the wire correction work can be further improved.

Second Embodiment
Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the first length is different except that the groove length of the concave groove 18 formed in the convex portion 16 and the separation distance between the side walls 22 of the concave portion 14 are different at the positions where the large diameter hole 12A and the small diameter hole 12B are formed. The configuration is the same as that of the embodiment. Therefore, the difference will be mainly described below, and the other description will be omitted.

  As shown in FIG. 11, the convex portion 16 of the present embodiment has, in order from the front end side of the correction portion 4b, a small convex 16B in which a small concave groove 18B is formed and a large convex 16A in which a large concave groove 18A is formed. And are formed. The small convex 16B has a smaller width in the insertion direction Z than the large convex 16A. That is, the convex portion 16 is formed in a step shape from the small convex 16B and the large convex 16A.

  On the other hand, as shown in FIG. 12, a pair of small walls 22B in which small cutouts 24B are formed and a pair of large walls 22A in which important cutouts 24A are formed on each side wall 22 in order from the distal end side of the correction portion 4a. And are formed. Each narrow wall 22B has a smaller separation distance in the insertion direction Z than each large wall 22A. That is, each side wall 22 is formed in a stepped shape from the narrow wall 22B and the large wall 22A. Thus, the small diameter hole 12B of the present embodiment is set such that the hole length in the insertion direction Z is shorter than the hole length of the large diameter hole 12A.

  As shown in FIG. 13, when the wire W is a small-diameter wire, the rigidity of the wire W is lower than that of a large-diameter wire, so that the radius of curvature is smaller than the radius of curvature r1 of the bent portion P in FIG. The bent portion P of r2 is likely to occur. In this case, the degree of wrinkle of the wire W is larger than that in the case of FIG. 12, and therefore, for the wire correction, more accurate definition of the reverse brazing point and the further more accurate comparison with the case of FIG. It is required to apply a large reverse brazing power.

Therefore, in the present embodiment, the reverse brazed portion is shown in FIG. 12 by inserting the vicinity of the bent portion P of the wire W through the small diameter hole 12B formed between the small wall 22B and the small protrusion 16B. It is possible to define more accurately, that is, pinpoint.
In addition, in the present embodiment, reverse bending is performed on the bent portion P of the wire W in a state where the wire W is inserted into the small diameter hole 12B formed by the narrow wall 22B and the narrow protrusion 16B. Accordingly, when it is assumed that the tool 2 is twisted at the same angle, the twist angle of the tool 2 becomes closer to the bending angle of the wire 4 than in the case of FIG.

  Further, by forming the small-diameter hole 12B by the small-width wall 22B and the small-width projection 16B, the contact area of the small-diameter hole 12B with the wire W can be reduced as compared with the case of FIG. Therefore, it is possible to increase the surface pressure against the wire W when reversely brazing the bent portion P of the wire W as compared with the case of FIG. That is, the reverse brazing degree with respect to the wire W, and hence the reverse brazing force, can be increased as compared with the case of FIG. 12, and therefore, by applying this embodiment, the degree of wrinkle of the small-diameter wire W is large. Even if it exists, wire correction can be performed effectively.

The present invention is not limited to the above-described embodiments, and various modifications can be made.
For example, in each of the above embodiments, the wire insertion hole 12 is composed of a large diameter hole 12A and a small diameter hole 12B. However, the present invention is not limited to this, and the wire insertion hole 12 may be constituted by one hole, or may be formed by three or more holes having different or equal hole diameters. Further, the arrangement order of the large diameter holes 12A and the small diameter holes 12B from the front ends of the correction portions 4a and 4b can be changed as appropriate.

In addition, the outer edge of the wire insertion hole 12 in each of the above embodiments is not limited to the curved surfaces 20 and 26 such as the R surface, and may be chamfered as long as it can be prevented from being damaged or cut.
In the case of the second embodiment, the wire insertion hole 12 has a short hole length in the small diameter hole 12B and a long hole length in the large diameter hole 12A. However, the present invention is not limited to this configuration, and it is permissible to provide a plurality of wire insertion holes 12 having different hole lengths according to different hole diameters as long as the wire can be corrected efficiently.

  Moreover, in each said embodiment, the convex part 16 formed in the correction part 4a is inserted in the recessed part 14 formed in the correction part 4b, and the wire penetration hole 12 is formed with these separation / contact. However, the present invention is not limited to this, and wire insertion holes 12 are formed in the correction portions 4a and 4b as the correction portions 4a and 4b are separated from each other, and the wire is inserted between the correction portions 4a and 4b. As long as the wire can be straightened and the wire can be corrected, various other configurations can be assumed. For example, a concave portion having a concave groove may be formed in each of the correction portions 4a and 4b, and the wire insertion hole 12 may be formed as the concave portions are separated from each other.

Moreover, in each said embodiment, the tool 2 can clamp a wire with big force by each correction | amendment part 4a, 4b by utilizing the "lever principle" by the 1st and 2nd connection parts 8 and 10. FIG. . However, in order to give a reverse brazing force to the wire, the second connecting portion 10 is not necessarily required, and thus the tool 2 that does not include the second connecting portion 10 may be used.
In addition, although not mentioned in the above embodiments, in order to prevent damage or cutting of the wire due to excessive approach or contact of each of the correction portions 4a and 4b, these between the handles 6 or between the correction arms 4 You may provide the stopper part which prevents the excessive approach or contact between these members.

  Moreover, in each said embodiment, the tool 2 is provided with each handle | steering-wheel 6 and the 2nd connection part 10. As shown in FIG. However, the present invention is not limited thereto, and the tool 2 that does not include the handles 6 and the second connecting portion 10 may be used by extending the straightening arms 4 and using the long straightening arms 4 as handles.

DESCRIPTION OF SYMBOLS 2 Wire correction tool 4 Correction arm 4a Correction part 4b Correction part 6 Handle 8 1st connection part 10 2nd connection part 12 Wire insertion hole 12A Large diameter hole (wire insertion hole)
12B Small-diameter hole (wire insertion hole)
14 Concave part 16 Convex part 16A Large convex part 16B Small convex part 18 Concave groove 18A Large concave groove 18B Small concave groove 22 Side wall 22A Large wall 22B Small wall 24 Cutout part 24A Important cutout 24B Small cutout

Claims (9)

A pair of straightening arms each having a wire straightening portion at one end;
A first connecting portion for connecting the respective correction arms so that the respective correction portions are detachable from each other;
A wire insertion hole formed in each of the correction portions with each other of the correction portions,
A wire straightening tool for straightening the wire by inserting the wire between the straightening portions and passing the wire through the wire insertion hole.   The wire straightening tool according to claim 1, wherein a plurality of the wire insertion holes are formed with different hole diameters.   The wire straightening tool according to claim 1 or 2, wherein the wire insertion hole has a chamfered outer edge.   The wire straightening tool according to any one of claims 1 to 3, wherein the wire insertion hole has a different hole length in accordance with the different hole diameter. A pair of handles respectively connected to the other ends of the correction arms;
And connecting each handle and each correction arm, and connecting each handle to each other, and a second connection part for interlocking each correction arm with each handle so that the correction parts can be separated from each other. The wire straightening tool according to any one of claims 1 to 4, further comprising: One of each of the correction parts has a concave part that is concave in the approaching direction of the correction parts,
The other of the correction parts has a convex part that is convex in the approaching direction and is fitted into the concave part as the correction parts approach each other.
The wire straightening tool according to any one of claims 1 to 5, wherein the wire insertion hole is formed when the concave portion and the convex portion are separated from each other. The convex portion forms a part of the wire insertion hole and has a concave groove extending in the wire insertion direction,
The recess has a pair of side walls facing in the insertion direction,
Each said side wall is a wire straightening tool of Claim 6 which each has a notch part which forms a part of said wire penetration hole. The wire insertion hole includes at least a large-diameter hole and a small-diameter hole having a smaller hole diameter than the large-diameter hole,
The convex portion is
A large groove forming a part of the large-diameter hole;
Forming a part of the small-diameter hole, including a small concave groove having a concave depth smaller than that of the large concave groove,
Each of the side walls
Important lack of forming a part of the large-diameter hole,
The wire straightening tool according to claim 7, wherein the wire straightening tool includes a small notch that forms a part of the small-diameter hole and has a notch range smaller than the important notch. The convex portion is
A large protrusion on which the large groove is formed;
The small concave groove is formed, and is formed in a step shape from a small convex having a smaller width in the insertion direction than the large convex,
Each of the side walls
A pair of large walls in which the lack is formed;
The wire straightening tool according to claim 8, wherein the small notch is formed, and is formed in a stepped shape from a pair of small-width walls whose separation distance in the insertion direction is smaller than each of the large walls.

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