JP2019068685A - Stripping tool - Google Patents

Abstract

To provide a stripping tool capable of stripping a core wire at once without damaging, while smoothly performing a stripping operation of a coated member, even the length of the coated member in a radial direction is a long coated wire.SOLUTION: A stripping tool 10 comprises: a main body part 20 having cylindrical insertion parts 22 and 24 which can insert a coated wire; and an operation part 40 that rotates the main body part 20. Notch parts 36a and 36b in which an entrance side to which the coated wire of the insertion parts 22 and 24 is inserted is set to a front surface, and one part is notched so as to be covered from one end edge of a back surface of the main body part 20 to a circular arc of the insertion parts 22 and 24, and one part in a side surface view of the main body part 20, and from a lower surface to an upper surface is inclined to the front surface from the back surface, are provided in the main body part 20. First blades 50a and 50b are attached to first blade setting surfaces 37a and 37b for each notch part, and second blades 52a and 52b are attached to second blade setting surfaces 38a and 38b in a lower part of the insertion part so as to be contacted to the first blades 50a and 50b.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a peeling tool for peeling a coated member of a coated electric wire.

  Generally, high-voltage overhead power distribution lines are coated copper wire, aluminum wire or copper wire (core wire) consisting of thick single wire around a covering member that is an insulator such as resin or rubber (hereinafter simply referred to as simply It is used as a covered electric wire).

  And in the construction of connecting the end of these coated electric wires with other electric wires or fastening a sleeve etc., the covering member of the necessary part of the coated electric wires is peeled off to secure the conductivity, and the core wire of the base is broken. Need to be exposed.

  For this reason, conventionally, the worker manually peels off the covering member of the coated electric wire using a knife or the like, or peels off using a peeling device.

  Patent Document 1 pays attention to the fact that the work of peeling the coated portion of the coated wire in the repair work as described above occupies a relatively large weight, and peeling the coated portion of the coated wire safely and easily by remote control. Tools are disclosed.

  Patent Document 2 discloses a tool (cover peeling) capable of safely and easily peeling off a coated portion of a covered electric wire having a fin portion to be laid in a low temperature region, a mountain area or the like in the above-described repair work A) is disclosed.

JP, 2012-161161, A Japanese Patent Application Laid-Open No. 10-215512

  However, in the tools described in Patent Document 1 and Patent Document 2, although the cutting edge of the blade for peeling off the covering portion of the installation wire can be cut into the covering member in the axial direction of the covering wire, centering on the covering wire When rotating the tool, there is a problem that it is difficult to cut the covering member in the radial direction of the coated wire.

  Moreover, the tools described in Patent Document 1 and Patent Document 2 can peel only a few mm from the surface of the coated electric wire, and the length of the covering member in the radial direction is about 10 mm. With a long coated wire, it took time to peel off the coated member.

  Further, the blade of the tool described in Patent Document 2 is provided on the inner surface of the grip wire portion so as to bite into the covering member while providing a very slight distance without the cutting edge coming in contact with the core wire of the coated wire. It was difficult to adjust the position of the blade.

  Moreover, the tool of patent document 2 was not able to determine beforehand the length which peels a covering member in an axial direction, and needed to measure the length which peeled in peeling operation.

  Therefore, the main object of the present invention is that even if the covering wire has a long radial length, the covering member can be peeled off smoothly without peeling off the core wire at once without damaging the core wire. It is providing a tool.

A peeling tool according to the present invention is a peeling tool for peeling a coated member of a coated electric wire whose core wire is covered by a coating member, and a main body having a cylindrical insertion portion into which the coated electric wire can be inserted. And a first blade attached to the main body to cut the covering member in the radial direction of the coated wire, a second blade attached to the main body to cut the covering member in the axial direction to the covered wire, and the main body The operation unit for rotating around the axis of the coated wire, wherein the main body portion is placed on the entrance side of the insertion portion into which the coated wire is inserted as a front face, and is hooked on an arc of the insertion portion from one edge of the back surface of the body portion. A part is cut out, and a side surface of the main body, a part from the lower surface to the upper surface has a cut surface having an inclined surface inclined from the back to the front, and the cutaway portion is , The first blade setting surface which is the inclined surface of the notch and The first blade is attached to the first blade installation surface including the second blade installation surface which is the side surface rear surface side of the main body and is the exposed surface of the lower portion of the insertion section, and A second blade is attached to abut on the blade.
Further, the peeling tool according to the present invention is provided between the one edge of the first blade provided on the first blade installation surface of the main body and not in contact with the second blade and the side surface of the main body. Preferably, a 1-blade support member is provided.
Further, the peeling tool according to the present invention moves linearly in the insertion direction of the coated electric wire, and fixes the stopper for determining the peeling range in the axial direction of the coated electric wire and the stopper with respect to the main body and fixing the position. The stopper further includes a bottom portion and an abutment portion provided perpendicularly to the bottom portion, and the bottom portion penetrates the bottom portion to adjust the position of the stopper. A hole is provided, and the stopper is fixed to the main body by the fixing member via the position adjusting elongated hole, and the contact portion is provided at a position where the core wire abuts when the coated wire is inserted into the insertion portion Is preferred.
Further, the peeling tool according to the present invention penetrates the bottom of the stopper and is juxtaposed to the position adjusting elongated hole provided in the bottom and the stopper while confirming the longitudinal edge of the lower surface of the main body. It is preferable to have a positioning elongated hole which adjusts the position of to determine the peeling range.
Further, in the peeling tool according to the present invention, the first blade disposed on the first blade installation surface and the second blade disposed on the second blade installation surface are formed back and forth across the blade edge. The blade surface is orthogonal, and the blade edge of the second blade is disposed rearward from the blade edge of the first blade in the direction opposite to the cutting direction of the blade edge of the first blade, and the blade edge of the first blade is Spreading in the radial direction of the covered electric wire inserted in the insertion part, the cutting edge of the first blade cuts into the inside of the covering member of the covered electric wire and reaches the surface or near the core wire, and the cutting edge of the second blade in the insertion part It is preferable that the inserted cutting wire extends in the axial direction, and the cutting edge of the second blade cuts into the inside of the covering member of the covering wire and reaches the surface or the vicinity of the core.

According to the peeling tool according to the present invention, the covering member has a long radial length of the covering member by having a part cut away from one end edge of the back surface of the main body part so as to overlap with the arc of the insertion part. Even the electric wire can be peeled off from the vicinity of the core wire. Further, the side view of the main body, a part from the lower surface to the upper surface is notched toward the front from the back surface, and the blade is installed along the inclined surface of the cutaway portion, so the position of the blade It is possible to fix the cutting angle to the covering member and the cutting width of the covering member without the need to adjust the
Further, according to the peeling tool according to the present invention, the blade included in the peeling tool is provided with the first blade for cutting the coated wire in the radial direction and the second blade for cutting the coated wire in the axial direction. When peeling the covering member by rotating the peeling tool centering on the covered electric wire, the covering member can be easily cut in the radial direction by the first blade, and the cutting in the axial direction of the covering member is performed by the second blade. It becomes easy and can perform peeling operation smoothly.
In the peeling tool according to the present invention, the first blade supporting member is attached to the outer side of the first blade, thereby restricting the first blade from moving outward during the peeling operation. it can.
Further, according to the peeling tool of the present invention, the stopper for determining the peeling length of the covering member in the axial direction is provided, and the peeling length is set in advance, and the stopper is fixed by the fixing member. Thus, the covering member is peeled off by the peeling tool, and when the end point of the peeling range set in advance is reached, the core wire from which the covering member is peeled abuts on the contact portion of the stopper, and the progression of the peeling tool is regulated. Be done. Therefore, it is possible to peel off a preset length range without having to measure during the peeling operation.
Further, according to the peeling tool according to the present invention, the positioning elongated hole is juxtaposed to the position adjusting hole provided on the bottom of the stopper, whereby the longitudinal direction of the main body on the outlet side of the insertion portion is obtained. Since the position of the stopper can be adjusted while confirming the edge of the stopper, it becomes easy to determine the position of the stopper.
Further, according to the peeling tool according to the present invention, since the first blade and the second blade cut into the inside of the covering member of the coated electric wire and reach the surface or the vicinity of the core wire, the radial length of the covering member is Even long coated wires can be peeled off at one time. In addition, since the second blade cuts into the portion where the cutting in the radial direction of the covering member W2 is completed by the first blade, the covering member can be efficiently separated.

  According to the present invention, it is possible to provide a peeling tool capable of smoothly performing the peeling operation of the covering member even if the covering wire has a long radial length of the covering member, without peeling the core wire at once. You can do it.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention, which will be made with reference to the drawings.

It is a front view of the tool for exfoliation concerning the embodiment of the present invention. It is a right side view of the tool for exfoliation concerning the embodiment of the present invention. It is a left side view of a tool for exfoliation concerning an embodiment of the invention. (A) is a front view of the main-body part of the tool for peelings concerning embodiment of this invention. (B) is a right side view of the main-body part of the peeling tool concerning embodiment of this invention. It is a perspective view of the blade used for the tool for exfoliation concerning the embodiment of the present invention. (A) is the figure which looked at the state which the 1st blade 50a cuts in the covered wire W from the back side. (B) is the figure which looked at the state which the 1st blade 50a cuts in the covered electric wire W from the right side. (A) is the figure which looked at the state which the 2nd blade 52a cuts in the covered wire W from the back side. (B) is the figure which looked at the state which the 2nd blade 52a cuts in the covered wire W from the right side. It is sectional drawing in line AA of the peeling tool shown in FIG. It is a figure which shows the state which inserted the coating | coated member of the coated wire in the insertion part using the peeling tool concerning embodiment of this invention. It is a figure which shows the state which is peeling the coating | coated member of a coated wire using the peeling tool concerning embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. The embodiment described below is an example embodying the present invention, and does not limit the technical scope of the present invention.
In the attached drawing, the longitudinal direction of the main body portion 20 of the peeling tool 10 is the x direction, the extending direction of the operation portion 40 of the peeling tool 10 is the y direction, and the thickness direction of the main body portion 20. The direction orthogonal to the direction and the y direction is taken as the z direction. Furthermore, the direction from the left side to the right side of the peeling tool 10 in the front view is the positive x direction, the direction from the right side to the left side in the front view of the peeling tool 10 is the negative x direction, and the lower side from the front view of the peeling tool 10 The direction toward the positive y direction, the direction from the top to the bottom of the peeling tool 10 from the upper side to the lower side is the negative y direction, the direction from the front to the rear of the peeling tool 10 from the front side is the positive z direction, the peeling tool 10 The direction from the rear side to the front side in the right side view of the is the negative z direction.

1. Configuration of Peeling Tool The peeling tool 10 will be described based on FIGS. 1 to 8. FIG. 1 is a front view of a peeling tool according to an embodiment of the present invention. FIG. 2 is a right side view of the peeling tool according to the embodiment of the present invention. FIG. 3 is a left side view of the peeling tool according to the embodiment of the present invention. FIG. 4 (a) is a front view of the main body of the peeling tool according to the embodiment of the present invention. FIG. 4B is a right side view of the main body of the peeling tool according to the embodiment of the present invention. FIG. 5 is a perspective view of a blade used in the peeling tool according to the embodiment of the present invention. Fig.6 (a) is the figure which looked at the state which the 1st blade 50a cuts in the covered wire W from the back side. FIG. 6B is a view of the state where the first blade 50a cuts the coated wire W from the right side. Fig.7 (a) is the figure which looked at the state which the 2nd blade 52a cuts in the covered electric wire W from the back side. FIG.7 (b) is the figure which looked at the state which the 2nd blade 52a cuts in the covered wire | conductor W from the right side. FIG. 8 is a cross-sectional view of the peeling tool shown in FIG. 1 along line A-A.

The peeling tool 10 is attached to the main body 20, the operation part 40 for rotating the main body 20 around the coated wire W, and the main body 20, as shown in FIGS. 1 to 3, and covers the covering member W2. A first blade 50a and a first blade 50b for cutting in the radial direction of the electric wire W, and a second blade 52a and a second blade 52b attached to the main body portion 20 for cutting the covering member W2 in the axial direction of the coated electric wire W; A stopper 42 for determining the peeling range of the covered electric wire W and a fixing member 48 for fixing the stopper 42 to the main body 20 are provided.
The covered electric wire W has a long cylindrical shape, includes a core wire W1 formed of a conductive material, and a cylindrical covering member W2 is provided to cover the core wire W1. By inserting the coated electric wire W into the main body 20 of the peeling tool 10 and rotating the operation unit 40 in the circumferential direction of the coated electric wire W, the coating member W2 of the coated electric wire W is peeled and peeled off from the core wire W1. And the covering member W3. The material of the covering member W2 is usually a synthetic resin such as polyvinyl chloride or polyethylene or a synthetic rubber.

(1) Main Body Unit The main body unit 20 is a substantially rectangular parallelepiped. In the main body portion 20, a first insertion portion 22 is provided on the right side in a front view, and a second insertion portion 24 is provided on the left side in the front view.

The first insertion portion 22 and the second insertion portion 24 penetrate the main body portion 20 in the z direction. The first insertion portion 22 and the second insertion portion 24 are cylindrical, for example, cylindrical. The first insertion portion 22 and the second insertion portion 24 can insert the coated electric wire W. In the first insertion portion 22 and the second insertion portion 24, a line connecting the center of the outer circumference circle of the first insertion portion 22 and the center of the outer circumference circle of the second insertion portion 24 is a center line of the main portion 20 in the y direction. Provided to match. The first insertion portion 22 and the second insertion portion 24 have a space to such an extent that resistance does not occur when the main body portion 20 is rotated.
The first insertion portion 22 is used to peel off the covering member W2 of the covered electric wire W having a diameter larger than that of the second insertion portion 24. The diameter of the first insertion portion 22 is, for example, 80 mm in diameter.
The second insertion portion 24 is used to peel off the covering member W2 of the covered electric wire W having a diameter smaller than that of the first insertion portion 22. The diameter of the second insertion portion 24 is, for example, 50 mm in diameter.

The first insertion portion 22 of the main body portion 20 inserts the coated electric wire W in the positive z direction from the front surface (front surface). As shown in FIG. 4, the main body portion 20 extends from the right end of the first insertion portion 22 to the right side (negative x direction) as viewed from the back (surface on the rear side) so as to cover the arc of the first insertion portion 22 It is cut out perpendicularly to the x direction. From the right end of the first insertion part 22 to the right (negative x-direction), a length L _a to cut out, the length in the radial direction of the covering member W2 (e.g., 10 mm) and it is approximately the same. Further, the main body portion 20 is a part from the lower surface to the upper surface (positive y direction) viewed from the right side, and viewed from the back to the front, ie, the opposite side to the insertion side of the covered wire W , Notched upward (in the negative z direction) toward the insertion side. The notch portion 36a is an inclined surface of the notch portion 36a, and the first blade placement surface 37a in a planar shape and the main body portion 20 are on the back side in a right side view, and the lower portion of the first insertion portion 22 is exposed. And a planar second blade mounting surface 38a. A space at the top of the notch 36a, that is, a space on the side opposite to the first blade mounting surface 37a and the second blade mounting surface 38a is provided to discharge the peeled covering member W3.

The first blade installation surface 37a is provided in the vicinity of the center line of the main body 20 in the z direction in a right side view. The first blade installation surface 37a is inclined in the negative z direction by an inclination angle θ ₁ (an angle between the lower surface of the main body 20 and the first blade installation surface 37a). The inclination angle theta ₁ with respect to the lower surface of the main body portion 20, 90 ° smaller. The inclination angle theta ₁ with respect to the lower surface of the first blade installation surface 37a, the width of the covering member W2 is determined that the first blade 50a is peeled cuts angle cuts against covering member W2, and the cover member W2 in the radial direction . By making inclination angle (theta) ₁ smaller than 90 degrees, covering member W2 can be continuously peeled in helical shape. The first blade mounting surface 37a is provided with first blade fixing screw holes 26a and 27a for mounting the first blade 50a.
The second blade mounting surface 38a is provided with a second blade locking screw hole 28a for mounting the second blade 52a.
Furthermore, in order to mount the first support member 58a for restricting the movement of the first blade 50a in the right direction (positive x direction) on the right side surface of the main body portion 20, the first support member fastening screw hole 29a And 30a are provided.

The second insertion portion 24 of the main body portion 20 inserts the coated electric wire W in the negative z direction from the rear surface (rear surface). As shown in FIG. 4, the main body portion 20 extends from the left end of the second insertion portion 24 to the left side (positive x direction) as viewed from the front (surface on the front side) in the arc of the second insertion portion 24. It is notched perpendicular to the direction. The length L _b being cut to the left (positive x direction) from the left end of the second insertion portion 24 has a length in the radial direction of the covering member W2 (e.g., 10 mm) and is approximately the same. In addition, the main body portion 20 is a part from the lower surface to the upper surface (positive y direction) viewed from the left side, and from the front to the back, that is, from the opposite side to the insertion side of the coated wire W to the insertion side It is notched upward (in the positive z direction). The notch portion 36b is an inclined surface of the notch portion 36b, and is a front surface side of the planar first blade installation surface 37b and the main body portion 20 in a left side view, and the lower portion of the second insertion portion 24 is exposed. And a flat second blade mounting surface 38b.

The first blade installation surface 37 b is provided near the center line of the main body 20 in the z direction in a left side view. The first blade installation surface 37b is inclined in the positive z-direction (the angle between the lower surface of the main body portion 20 and the first blade installation surface 37b) inclined angle theta ₂ only. The inclination angle theta ₂ with respect to the lower surface of the main body portion 20, 90 ° smaller. The inclination angle theta ₂ with respect to the lower surface of the first blade installation surface 37b, the width of the covering member first blade 50b is peeled cuts angle cuts against covering member W2, and the cover member in the radial direction is determined. By making inclination angle (theta) ₂ smaller than 90 degrees, covering member W2 can be continuously peeled in spiral shape. Further, first blade setting screw holes 26b and 27b for mounting the first blade 50b are provided in the first blade installation surface 37b.
The second blade mounting surface 38b is provided with a second blade locking screw hole 28b for mounting the second blade 52b.
Furthermore, in order to mount the first support member 58b for restricting the movement of the first blade 50b in the left direction (negative x direction) on the left side surface of the main body portion 20, the first support member fastening screw hole 29b And 30b are provided.

  A groove 39 for moving the stopper 42 in the insertion direction (z direction) of the coated electric wire W is formed on the lower surface of the main body portion 20 in the front-rear direction (z direction). The length of the groove 39 in the x direction is substantially the same as the length of the stopper 42 in the x direction, and the length of the groove 39 in the vertical direction (y direction) is about half that of the stopper 42 in the y direction. is there.

(2) Operation Unit On the upper and lower surfaces of the main unit 20, an operation unit 40 for rotating the main unit 20 around the coated wire W is provided.
The operation unit 40 includes a first operation unit 40 a and a second operation unit 40 b.
The first operation portion 40 a has a cylindrical shape, is orthogonal to the x direction and z direction of the main body portion 20, and extends from the upper surface of the main body portion 20 in the positive y direction. The first operation portion 40 a is fixed by screwing the first operation portion attachment hole 31 provided on the upper surface of the main body portion via the nut 41. The first grip 40c is attached to an end of the first operation portion 40a.
The second operation portion 40 b is cylindrical, is orthogonal to the x direction and the y direction of the main body portion 20, and extends in the negative y direction from the lower surface of the main body portion 20. The second operation portion 40 b is fixed to the main body portion 20 by screwing the second operation portion attachment hole 32 provided on the lower surface of the main body portion. The second grip portion 40d is attached to an end of the second operation portion 40b.
An axis line in the y direction connecting the first operation portion 40 a and the second operation portion 40 b extends between the outer periphery of the first insertion portion 22 and the outer periphery of the second insertion portion 24.
By providing the 1st operation part 40a and the 2nd operation part 40b apart from each two blades (the 1st blade 50a and the 2nd blade 52a, and the 1st blade 50b and the 2nd blade 52b) The force is easily applied to the two blades (the first blade 50a and the second blade 52a, and the first blade 50b and the second blade 52b), and the covering member W2 can be efficiently peeled off.
The operation unit 40 holds the first grip unit 40c and the second grip unit 40d, and rotates the main body unit 20 around the coated wire W.

(3) Blades Each of the insertion portions 22 and 24 of the main body portion 20 is provided with a pair of blades. The first insertion portion 22 includes a first blade 50a having a first cutting edge 54a extending in the x direction, and a second blade 52a having a second cutting edge 56a extending in the z direction. The second insertion portion 24 includes a first blade 50b in which a first cutting edge 54b extends in the x direction, and a second blade 52b in which a second cutting edge 56b extends in the z direction.

  The first blade 50a and the first blade 50b, and the second blade 52a and the second blade 52b have the same shape although the mounting positions are different. Since the first blade 50a, the first blade 50b, the second blade 52a and the second blade 52b have the same shape, they can be replaced with each other, and the first blade 50a, the first blade 50b, the second blade 52a and There is no problem in using the peeling tool 10 even if the second blade 52b is mounted at the wrong position. Furthermore, since the first blade 50a, the first blade 50b, the second blade 52a, and the second blade 52b have the same shape, the production cost can be reduced.

The shape of the blade will be described based on FIG. In addition, since the 1st blade 50a, the 1st blade 50b, the 2nd blade 52a, and the 2nd blade 52b are the same shapes, the 1st blade 50a is demonstrated and description is abbreviate | omitted about the shape of the other blade.
The first blade 50a has a substantially trapezoidal shape in which the length in the y direction of the edge in the negative x direction is short and the length in the y direction of the edge in the positive x direction is long in rear view. The cutting edge 54a of the first blade at the upper side of the first blade 50a is inclined to be lowered in the negative x direction. Angle alpha ₁ of the positive x direction of the end face 50a1 of the cutting edge 54a and the first blade 50a of the first blade is acute, the angle between the negative x direction of the end face 50a2 of the cutting edge 54a and the first blade 50a of the first blade alpha ₂ is an obtuse angle.
The first blade 50a is substantially trapezoidal in a side view, in which the length in the y direction of the edge in the negative z direction is short and the length in the y direction of the edge in the positive z direction is long. An upper inclined surface 50a3 of the first blade 50a, the angle beta ₁ and beta ₂ of the first blade installation surface 37a side surface 50a4 of the first blade 50a is an acute angle.
Therefore, the first blade 50a is a flat plate-like blade having an acute-angled thin and sharp first blade edge 54a.
Further, a first blade fixing screw hole 60a is provided in the lower part of the first blade 50a.

The first blade 50a and the first blade 50b will be described.
The first blade 50 a and the first blade 50 b are blades that cut the covering member W 2 in a spiral shape in the radial direction of the covered electric wire W.
The first blade 50a will be described based on FIG.
The first blade 50a is attached to the first blade mounting surface 37a of the main body 20 so as to be in contact with the flat surface 50a4 of the first blade 50a.
As the first blade 50a goes to the coated wire W (negative x direction side), the length of the first blade 50a in the y direction becomes short, and as it goes to the outside of the main body 20 (positive x direction side), The length of the 1-blade 50a in the y direction is long. That is, when viewed from the coated electric wire W, the first blade 50a protrudes in the negative x direction from the right end (end on the positive x direction) of the first insertion portion 22 in the radial direction of the covering member W2. Provided. Thus, the end portion 54a2 on the negative x direction side of the cutting edge 54a of the first blade is easily cut in the radial direction of the coated electric wire W. The first cutting edge 54 a extends in the radial direction of the covered electric wire W inserted into the first insertion portion 22, cuts into the inside of the covering member W 2 of the covered electric wire W, and reaches the surface or near the core wire W 1. The extending direction of the cutting edge 54a of the first blade is orthogonal to the axial direction of the coated electric wire W.
When viewed from the right side, the first blade 50a is inclined toward the axial center line of the covered wire W, and the angle between the axial center line of the covered wire W and the first blade 50a γ ₁ is equal to the inclination angle θ ₁ of the first blade mounting surface 37 a of the main body 20. By the angle gamma ₁ between the center line of the axial wire W and the first blade 50a, the width of peeling cuts the covering member W2 is determined.
Furthermore, since the length of the first blade 50a in the y direction is shorter on the negative x direction side of the blade edge 54a of the first blade, the end 54a2 on the negative x direction side of the blade edge 54a of the first blade is When cutting into the covering member W2, the first blade 50a is supported by the first blade mounting surface 37a so that the first blade 50a is not broken by the resistance of the covering member W2. Furthermore, even when the first blade 50a is deeply cut into the covering member W2, even when the first blade 50a is shallowly cut into the covering member W2, it can be cut with an equal force.

The first blade 50a has a first blade fixing screw hole 60a provided in the first blade 50a, an upper first blade fixing screw hole 26a provided in the first blade installation surface 37a, or a lower first. It is fixed by screwing the first blade fixing screw 66a with any one of the blade fixing screw holes 27a.
When the first blade 50a is deeply cut into the covering member W2, the upper first blade fixing screw hole 26a is used, while when the first blade 50a is shallowly cut into the covering member W2, the lower side is formed. The first blade fixing screw hole 27a is used.

When the first blade 50a cuts in the radial direction of the covering member W2 on the right side (positive x direction side) of the first blade 50a, the first blade 50a is in the right direction (positive x direction) of the main body 20, that is, The first blade support member 58a is provided to restrict movement in the right direction (positive x direction) because it is easy to move away from the covering member W2.
The first blade support member 58a is substantially L-shaped in plan view.
The first blade support member 58a has a first blade support member fastening screw hole 64a provided on the first blade support member 58a and an upper first blade support member fastening screw hole 29a provided on the right side surface of the main body 20. Alternatively, it is fixed by screwing the first blade support member fastening screw 70a to any one of the lower first blade support member fastening screw holes 30a.
When the first blade 50a cuts deeply into the covering member W2, the upper first blade support member fastening screw hole 29a is used, while when the first blade 50a cuts shallowly into the covering member W2, the lower first one The blade support member fastening screw hole 30a is used.

Similarly, the first blade 50b is attached to the first blade mounting surface 37b of the main body 20 so as to be in contact with the back surface 50b4 of the first blade 50b.
In the first blade 50b, the length of the first blade 50b in the y direction is shorter as it goes to the coated electric wire W (the positive x direction side), and as it goes to the outside of the main body 20 (the negative x direction side), The length of the 1-blade 50b in the y direction is long. That is, when viewed from the covered electric wire W, the first blade 50b protrudes in the positive x direction from the left end (end on the negative x direction side) of the second insertion portion 24 in the radial direction of the covering member W2. Provided. As a result, in the radial direction of the covered electric wire W, the end portion 54b2 on the positive x direction side of the cutting edge 54b of the first blade is easily cut. The first cutting edge 54b extends in the radial direction of the covered electric wire W inserted into the second insertion portion 24, cuts into the inside of the covering member W2 of the covered electric wire W, and reaches the surface or near the core wire W1. The extending direction of the cutting edge 54b of the first blade is orthogonal to the axial direction of the coated electric wire W.
When viewed from the left side, the first blade 50b is inclined toward the axial center line of the covered wire W, and the angle between the axial center line of the covered wire W and the first blade 50b γ ₂ (not shown) is equal to the inclination angle θ ₂ of the first blade mounting surface 37 b of the main body 20. An angle γ ₂ (not shown) between the axial center line of the covered electric wire W and the first blade 50 b determines the width to be cut into the covering member W 2 and peeled off.
Furthermore, since the length of the first blade 50b in the y direction is shorter on the positive x direction side of the blade edge 54b of the first blade, the end 54b2 on the positive x direction side of the blade edge 54b of the first blade is When cutting into the covering member W2, the first blade 50b is supported by the first blade setting surface 37b so that the first blade 50b is not broken by the resistance of the covering member W2. Furthermore, even when the first blade 50b is deeply cut into the covering member W2, even when the first blade 50b is shallowly cut into the covering member W2, it can be cut with an equal force.

The first blade 50b includes a first blade fixing screw hole 60b provided in the first blade 50b and an upper first blade fixing screw hole 26b provided in the first blade installation surface 37b, or a lower first. It is fixed by screwing the first blade fixing screw 66b with any one of the blade fixing screw holes 27b.
When the first blade 50b is deeply cut into the covering member W2, the upper first blade fixing screw hole 26b is used, while when the first blade 50b is shallowly cut into the covering member W2, the lower side The first blade fixing screw hole 27b is used.

When the first blade 50b cuts in the radial direction of the covering member W2 on the left side (negative x direction side) of the first blade 50b, the first blade 50b is in the left direction (negative x direction) of the main body 20, that is, The first blade support member 58b is provided to restrict movement in the left direction (negative x direction) because it is easy to move away from the covering member W2.
The first blade support member 58b is substantially L-shaped in plan view.
The first blade support member 58b includes a first blade support member fastening screw hole 64b provided in the first blade support member 58b, and an upper first blade support member fastening screw hole 29b provided in the left side surface of the main body 20. Alternatively, it is fixed by screwing the first blade support member fastening screw 70b to any one of the lower first blade support member fastening screw holes 30b.
When the first blade 50b cuts into the covering member W2 deeply, the upper first blade support member retaining screw hole 29b is used, while when the first blade 50b cuts into the covering member W2 shallowly, the lower first The blade support member fastening screw hole 30b is used.

The second blade 52a and the second blade 52b will be described.
The second blade 52a and the second blade 52b cut the covering member W2 cut by the first blade 50a and the first blade 50b in the axial direction of the covered electric wire W, and peel the covering member W2 from the vicinity of the core wire W1. It is a blade that
The second blade 52a will be described based on FIG.
The second blade 52a is attached to the second blade mounting surface 38a, and is attached to be in contact with the left end (the end edge in the negative x direction) of the first blade 50a. Thus, the second blade 52a is also inclined to the same amount the negative z direction as the inclination angle theta ₁ of the first blade installation surface 37a of the main body portion 20. Also, when viewed from the coated wire W, the second blade 52a is provided in parallel with the center line of the coated wire W in the y direction. The second cutting edge 56 a extends in the axial direction of the covered wire W inserted into the first insertion portion 22, and the extending direction of the cutting edge 56 a of the second blade is substantially parallel to the axial direction of the covered wire W. The second cutting edge 56a cuts into the inside of the covering member W2 of the covered electric wire W, and reaches the surface or the vicinity of the core wire W1. Thereby, it becomes easy to cut in the axial direction of the covered electric wire W, without damaging the core wire W1.
Further, the length of the second blade 52a in the y direction is longer toward the first blade 50a. Thereby, it becomes easier to cut in the axial direction of the covered electric wire W.
Furthermore, the cutting edge 56a of the second blade 52a is provided slightly below the cutting edge 54a of the first blade 50a. As a result, since the second blade 52a cuts the portion where the cutting in the radial direction of the covering member W2 is completed by the first blade 50a, the covering member W2 can be efficiently separated.

  The second blade 52a is a second blade 52a by bringing the left side surface 52a1 (surface in the positive z direction) of the second blade 52a into contact with the left side (negative x direction side) which is one end edge of the first blade 50a. 52a is inclined toward the first blade 50a. The second blade 52a includes a second blade locking screw 68a in a second blade locking screw hole 62a provided in the second blade 52a and a second blade locking screw hole 28a provided in the second blade mounting surface 38a. It is fixed by screwing.

Similarly, the second blade 52b is attached to the second blade mounting surface 38b and attached so as to be in contact with the right end (the end edge on the positive x direction side) of the first blade 50b. Thus, the second blade 52b is also inclined to the same by a positive z-direction and the inclination angle theta ₂ of the first blade installation surface 37b of the body portion 20. Further, when viewed from the coated wire W, the second blade 52 b is provided in parallel with the center line of the coated wire W in the y direction. The second cutting edge 56b extends in the axial direction of the covered electric wire W inserted into the second insertion portion 24, and the extending direction of the cutting edge 56b of the second blade is substantially parallel to the axial direction of the covered electric wire W. Further, the second cutting edge 56b cuts into the inside of the covering member W2 of the covered electric wire W, and reaches the surface or the vicinity of the core wire W1. Thereby, it becomes easy to cut in the axial direction of the covered electric wire W, without damaging the core wire W1.
Further, the length of the second blade 52b in the y direction is longer toward the first blade 50b. Thereby, it becomes easier to cut in the axial direction of the covered electric wire W.
Further, the cutting edge 56b of the second blade 52b is provided slightly below the cutting edge 54b of the first blade 50b. As a result, since the second blade 52b cuts the portion where the cutting in the radial direction of the covering member W2 is completed by the first blade 50b, the covering member W2 can be efficiently peeled off.

  The second blade 52b brings the left surface 52b1 (surface on the negative z direction side) of the second blade 52b into contact with the right side (end edge on the positive x direction side) which is one end edge of the first blade 50b. The second blade 52b is inclined toward the first blade 50b. The second blade 52b includes a second blade locking screw 68b in a second blade locking screw hole 62b provided in the second blade 52b and a second blade locking screw hole 28b provided in the second blade mounting surface 38b. It is fixed by screwing.

(4) Stopper The stopper 42 determines the length of peeling the covering member W2 in the axial direction. The stopper 42 is moved linearly along the groove 39 of the main body 20 in the insertion direction (z direction) of the coated electric wire W, the stopper 42 is adjusted to the length of the covering member W2 to be peeled off and fixed by the fixing member 48.

The stopper 42 has a bottom surface portion 44, and a first contact portion 46a and a second contact portion 46b provided perpendicularly to the bottom surface portion 44. The stopper 42 is substantially U-shaped in side view.
The first contact portion 46 a is a part of an end edge of the bottom surface portion 44 on the rear side in a side view, and when the covered electric wire W is inserted into the first insertion portion 22, the first contact portion 46 a Is provided vertically to the bottom portion 44. Further, the second contact portion 46 b is a part of an end edge of the bottom surface portion 44 in the side view front, and when the covered wire W is inserted into the second insertion portion 24, the outlet side of the second insertion portion 24 Is provided vertically to the bottom portion 44.
The first contact portion 46 a and the second contact portion 46 b have a plate shape, and a substantially circular shape is connected to a rectangular solid connected to the bottom surface portion 44. When the coated wire W is inserted into the first insertion portion 22 or the second insertion portion 24, a substantially circular portion is provided at a position where the core wire W1 abuts.
In addition, if the 1st contact part 46a is provided in the position which the core wire W1 contacts, when the 1st insertion part 22 is inserted in the covered wire W, the shape of the 1st contact part 46a will be the shape. Is not limited. Similarly, the shape of the second contact portion 46b is also the same as long as the second contact portion 46b is provided at a position where the core wire W1 contacts when the second insertion portion 24 is inserted into the covered electric wire W. The shape is not limited.

As shown in FIG. 8, the bottom portion 44 uses the position adjusting elongated hole 44 a and the first insertion portion 22, which adjust the position of the stopper 42 when determining the length to peel the covering member W 2 in the axial direction. When the covering member W2 is peeled off using the second insertion portion 24 and the positioning long hole 44b used to determine the length for peeling the covering member W2 in the axial direction when peeling off the covering member W2 And a positioning long hole 44c used to determine the length of peeling the covering member W2 in the axial direction.
The position adjusting long hole 44a is an oblong through hole extending in the z direction. The second operation portion 40 b passes through the position adjustment long hole 44 a and is connected to the lower surface of the main body portion 20.
The positioning elongated holes 44b are rectangular through holes extending in the z direction. The positioning elongated hole 44b is used to confirm the front edge and the rear edge of the lower surface of the main body 20 through the positioning elongated hole 44b, move the stopper 42, and determine the peeling length of the covering member W2. .
The positioning elongated holes 44c are rectangular through holes extending in the z direction. The positioning elongated hole 44c is used to confirm the front edge and the rear edge of the lower surface of the main body 20 through the positioning elongated hole 44c, move the stopper 42, and determine the peeling length of the covering member W2. .
Between the position adjusting long hole 44a and the positioning long hole 44b, a scale used to determine the peeling length when peeling the covering member W2 using the first insertion portion 22 is attached There is. In addition, a scale used to determine the peeling length when peeling the covering member W2 using the second insertion portion 24 is provided between the position adjustment long hole 44a and the positioning long hole 44c. It is done.

  For example, when the covering member W2 is peeled off using the first insertion portion 22, the stopper 42 is moved in the z direction, and a scale provided between the position adjustment long hole 44a and the positioning long hole 44b is used. The length to peel off the covering member W2 is determined. The stopper 42 is fixed by tightening the fixing member 48 attached to the second operation portion 40 b. When the coated electric wire W is inserted into the first insertion portion 22 and the operation portion 40 is rotated in a predetermined direction around the coated electric wire W, the covering member W2 is separated, and the separated covering member W3 and the core wire W1 are separated. When the core wire W1 abuts on the first contact portion 46a of the stopper 42, the covering member W2 reaches a preset peeling length, and regulates peeling of a length longer than the preset peeling length. Furthermore, by rotating the coated electric wire W in a predetermined direction, the peeled covering member W3 can be cut.

(5) Fixing Member The fixing member 48 fixes the stopper 42. The fixing member 48 is attached to the second operation unit 40 b. When the covering member W2 is peeled in the axial direction, the stopper 42 is moved to a peeling length to determine the position, and the fixing member 48 is tightened to fix the main body 20 and the stopper 42. The fixing member 48 is constituted by, for example, a wing nut.

(effect)
The covering tool W2 has a long radial length of the covering member W2 because the peeling tool 10 has a part cut away from one end edge of the back surface of the main body part 20 so as to overlap with the arc of the first insertion part 22. Even the electric wire W can be peeled off from the vicinity of the core wire W1. In addition, the covered wire W has a long length in the radial direction of the covering member W2 because a part thereof is cut away from one end edge of the front surface of the main body portion 20 so as to cover the arc of the second insertion portion 24. However, it can be peeled off from the vicinity of the core wire W1. Conventionally, when the covering member W2 of the covered electric wire W whose length in the radial direction of the covering member W2 is long can be peeled off, since it was not possible to deeply cut into the covering member W2, it was necessary to separate in several times. The peeling tool 10 can peel at one time.

  Further, in the peeling tool 10, in the side view of the main body portion 20, a part from the lower surface to the upper surface is from the back to the front, that is, from the opposite side to the insertion side of the coated wire W As the blade is set up along the inclined surface of the notch, and it is not necessary to adjust the position of the blade, the cutting angle with respect to the covering member and the cutting of the covering member are notched because it is inclined toward the upper side. The width can be fixed.

  Further, the peeling tool 10 is provided with a first blade 50a and a first blade 50b for cutting the coated wire W in the radial direction, and a second blade 52a and a second blade 52b for cutting the coated wire W in the axial direction. Therefore, when peeling the covering member W2 by rotating the peeling tool 10 about the coated electric wire W, the covering member can be easily cut in the radial direction by the first blade 50a or the first blade 50b, The cutting in the axial direction of the covering member W2 is facilitated by the blade 52a or the second blade 52b, and the peeling operation can be performed smoothly.

  Further, since the pair of blades provided in the peeling tool 10 have the same shape, they can be interchanged with each other, and the peeling tool 10 is used even if the positions to which the respective blades are attached are mistaken. The problem does not occur. Furthermore, since the pair of blades have the same shape, the production cost can be reduced.

  Further, the peeling tool 10 has the first blade 50a and the first blade supporting member 58b attached to the outside of the first blade 50a and the first blade 50b, so that the first blade 50a and the first blade supporting member 58b are attached during the peeling operation. The covering member W2 can be cut in the radial direction without the first blade 50b moving to the outer side (x direction).

  Furthermore, the peeling tool 10 is provided with a stopper 42 for determining the length of peeling the covering member W2 in the axial direction, and the peeling length is set in advance, and the stopper 42 is fixed by the fixing member 48. The core wire W1 from which the covering member W2 has been peeled is used as the first contact portion 46a or the second contact 42 of the stopper 42 when the covering member W2 is peeled off by the peeling tool 10 and reaches a preset peeling length. It abuts on the abutting portion 46b, and the movement of the peeling tool 10 is restricted. Therefore, it is possible to peel off a preset length range without having to measure during the peeling operation.

2. Operation Procedure of Peeling Tool Next, the peeling tool 10 having the above configuration is attached to the coated electric wire W, and the covering member W2 is peeled from the coated electric wire W using the first insertion portion 22 of the peeling tool 10. The operation procedure of the peeling tool will be described with reference to FIGS. 9 and 10. FIG. 9 is a view showing a state in which the covering member of the coated electric wire is inserted into the insertion portion using the peeling tool according to the embodiment of the present invention. FIG. 10 is a view showing a state in which the covering member of the coated electric wire is peeled using the peeling tool according to the embodiment of the present invention.

  (1) First, the coated wire W is inserted into the first insertion portion 22.

  (2) Next, the stopper 42 is moved in the z direction and the fixing member 48 is tightened while checking the positioning long hole 44b provided in the bottom surface portion 44 of the stopper 42 so that the stopper 42 has a length desired to be peeled off. By this, the stopper 42 is fixed.

  (3) Subsequently, the operating portion 40 is operated to rotate the main body portion 20 in a predetermined direction about the covered wire W, and the first blade 50a and the second blade are protruded to the inner surface of the first insertion portion 22 The covering member W2 of the covered electric wire W is continuously peeled off in the longitudinal direction of the covered electric wire W by 52a. In the first blade 50a, first, the end 54a2 on the negative x direction side of the blade tip 54a of the first blade bites into the covering member W2, and the main body 20 is further rotated in a predetermined direction to form the core wire W1 of the covering member W2. It reaches the surface or in the vicinity, and cuts in a spiral toward the radial direction of the covering member W2. After cutting of the first blade 50a is completed following the first blade 50a, the end 56a1 on the negative z direction side of the blade edge 56a of the second blade bites into the covering member W2, and the main body further By rotating the portion 20 in a predetermined direction, it reaches the surface or in the vicinity of the core wire W1 of the covering member W2, and peels off the covering member W2 substantially in parallel with the axial direction of the covered electric wire W.

  (4) When the peeling length set in advance is reached, the core wire W1 from which the covering member W2 has been peeled is brought into contact with the first contact portion 46a of the stopper 42, whereby the progress of the peeling tool 10 is restricted. Even when the operation unit 40 is rotated in a predetermined direction, peeling does not occur beyond the preset peeling range.

  (5) Finally, when the operation unit 40 is rotated in the predetermined direction, the portion where the covering member W2 which is not peeled off and the covering member W3 which is peeled off is connected is the first blade 50a and the second blade 52a. The cut and peeled covering member W3 can be removed. After the peeled covering member W3 is removed, the peeling tool 10 is removed from the covered electric wire W.

  As described above, by rotating the peeling tool 10, the covering member W2 is peeled from the coated electric wire W by the first blade 50 and the second blade 52.

As described above, the embodiments of the present invention are disclosed in the above description, but the present invention is not limited thereto.
That is, various changes can be added to the embodiments described above with respect to the mechanism, the shape, the material, the number, the position, the arrangement, and the like without departing from the scope of the technical idea and object of the present invention. And they are included in the present invention.

  For example, although the peeling tool shown in FIG. 1 is provided with the insertion part which inserts a covered wire into a main-body part in two places, a 1st insertion part and a 2nd insertion part, it does not restrict to this, Good.

DESCRIPTION OF SYMBOLS 10 Peeling tool 20 main-body part 22 1st insertion part 24 2nd insertion part 26a, 26b upper side 1st blade fastening screw hole 27a, 27b lower side 1st blade fastening screw hole 28a, 28b 2nd blade fastening screw hole 29a, 29b Upper first blade support member retaining screw hole 30a, 30b lower first blade support member retaining screw hole 31 first operation portion mounting hole 32 second operation portion mounting hole 36a, 36b notch 37a, 37b first blade installation surface 38a, 38b Second blade installation surface 39 Groove 40 Operation section 40a First operation section 40b Second operation section 40c First grip section 40d Second grip section 41 Nut 42 Stopper 44 Bottom section 44a Position adjustment long hole 44b, 44c Positioning length Hole 46a first abutment portion 46b second abutment portion 48 fixing member 50, 50a, 50b first blade 52, 52a, 52b second blade 54 54a, 54b first cutting edge 56, 56a, 56b second cutting edge 58, 58a, 58b first blade support member 60a, 60b first blade retaining screw hole 62a, 62b second blade retaining screw hole 64a, 64b first blade Support member retaining screw hole 66a, 66b first blade retaining screw 68a, 68b second blade retaining screw 70a, 70b first blade supporting member retaining screw 80 score line 90 peeling wire W coated electric wire W1 core wire W2 coated member W3 peeled off Cover member L _a Length cut out from the right side of the first insertion portion L _b Length cut from the left side of the second insertion portion θ ₁ Inclination angle with respect to the lower surface of the first blade installation surface θ ₂ Second blade installation surface Angle of inclination to the lower surface α ₁ Angle of the blade edge to the left side α ₂ Angle of the blade edge to the right side β ₁ Angle of the left side of the inclined surface towards the blade edge and back surface β ₂ Angle of the right side of the inclined surface toward the blade edge γ ₁ , γ ₂ Angle between the first blade and the axial direction of the coated wire

Claims (5)

A peeling tool for peeling the covering member of a covered electric wire whose core wire is covered by the covering member,
A main body having a cylindrical insertion portion into which the coated wire can be inserted;
A first blade attached to the main body and cutting the covering member in the radial direction of the covered electric wire;
A second blade attached to the main body for cutting the covering member in the axial direction of the covered wire;
An operation unit for rotating the main body portion around the axis of the coated wire;
Equipped with
The main body portion is partially cut away so that the entrance side of the insertion portion into which the coated wire is inserted is the front, and one end edge of the back surface of the main body portion covers an arc of the insertion portion; The side view of the part, a part from the lower surface to the upper surface is provided with a notch having an inclined surface inclined from the back to the front,
The notch portion is a first blade installation surface which is an inclined surface of the notch portion, and a second blade installation surface which is a side surface rear surface side of the main body portion and which is an exposed surface of the lower portion of the insertion portion. Including
The first blade is attached to the first blade installation surface, and the second blade is attached to the second blade installation surface so as to abut the first blade.
A peeling tool characterized by   A first blade support member is provided between one end edge of the first blade provided on the first blade installation surface of the main body and not in contact with the second blade and the side surface of the main body. The stripping tool according to claim 1, characterized in that: A stopper which linearly moves in the insertion direction of the coated wire and determines a peeling range in the axial direction of the coated wire;
A fixing member for fixing the stopper to the main body and determining its position;
And further
The stopper is
A bottom portion and an abutting portion provided perpendicularly to the bottom portion;
The bottom surface portion is provided with a position adjustment long hole which penetrates the bottom surface portion and adjusts the position of the stopper,
The stopper is fixed to the main body by the fixing member via the position adjusting elongated hole, and the contact portion is provided at a position where the core wire contacts when the covered electric wire is inserted into the insertion portion. The peeling tool according to claim 1 or 2, characterized in that:   The peeling range is achieved by adjusting the position of the stopper while checking the end edge in the longitudinal direction of the lower surface of the main body portion, which penetrates the bottom surface portion and is juxtaposed to the position adjustment long hole provided in the bottom surface portion. The peeling tool according to claim 3, characterized in that it has a positioning elongated hole that determines. The first blade disposed on the first blade installation surface and the second blade disposed on the second blade installation surface are orthogonal to each other with the blade surfaces formed on the front and rear sides of the blade edge,
The cutting edge of the second blade is disposed lower than the cutting edge of the first blade in such a manner that the cutting edge of the first blade is lowered backward toward the opposite side of the cutting direction of the cutting edge of the first blade,
The cutting edge of the first blade extends in the radial direction of the coated wire inserted into the insertion portion,
The cutting edge of the first blade cuts into the inside of the covering member of the coated electric wire, and reaches the surface or the vicinity of the core wire,
The cutting edge of the second blade extends in the axial direction of the coated wire inserted into the insertion portion,
The peeling tool according to claim 1, wherein the cutting edge of the second blade is cut into the inside of the covering member of the coated electric wire to reach the surface or the vicinity of a core.