Wire stripping tools

Abstract

To provide a wire stripping tool capable of avoiding damage to a core wire surface scratch prevention pin.SOLUTION: A wire stripping tool includes an opening / closing mechanism 110, a rotation mechanism 200 that opens and closes and rotates with respect to an opening and closing mechanism 110, and a peeling mechanism 300 that is attached to the rotation mechanism 200 and opens, closes, and rotates together, and a peeling mechanism body 302 of a peeling mechanism 300 is configured by combining a first body member 310 and a second body member 312. A cutting mechanism is attached to the second body member 312. The first body member 310 is provided with a core wire surface scratch prevention member 400 that expands and contracts toward the second body member 312, and a support member 410 that supports the core wire surface scratch prevention member 400 from an opposite side of an electric wire L.SELECTED DRAWING: Figure 13

Description

[Technical Field]

[0001] The present invention relates to a wire stripping tool used to strip and remove a certain length of insulating coating from the middle of an electric wire. [Background technology]

[0002] When carrying out construction work on power distribution facilities, bypass construction and grounding work are sometimes carried out to cause partial power outages. In these cases, in order to form a bypass or grounding path, the insulation covering in the middle of the electric wire must be stripped away to expose the conductor core, and then bypass or grounding devices must be connected to the exposed core while the wire is still live.

[0003] To meet this demand, a wire stripping tool has been developed that allows workers to spirally cut and strip the insulating coating from the middle of a wire without directly touching the wire, etc. (For example, Patent Document 1). After the specified construction work is completed, restoration is achieved by attaching a plastic insulating cover to the exposed core wire.

[0004] The wire stripping tool disclosed in Patent Document 1 is provided with a pin for preventing damage to the conductor (core wire) surface, which supports the core wire, in order to prevent the core wire from being damaged when the insulating coating is stripped off.

[0005] This pin for preventing scratches on the conductor (core wire) surface protrudes freely from the side of the link without a stripping blade, and when the pin for preventing scratches on the conductor (core wire) surface is fully extended, a locking hole into which the tip of the pin for preventing scratches on the conductor (core wire) surface fits is drilled in the link on the opposite side (link with a stripping blade).

[0006] As a result, when starting to strip the insulation coating using the wire stripping tool, the pin to prevent scratches on the conductor (electric wire) surface is retracted toward the stripping blade-less frame during the first round and does not get in the way of the wire, but from the second round onwards the pin to prevent scratches on the conductor (core wire) surface extends and fits into the locking hole, so that the pin to prevent scratches on the conductor (core wire) surface supports the core wire from which the insulation coating has been stripped. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-192430 Summary of the Invention [Problem to be solved by the invention]

[0008] However, with the wire stripping tool disclosed in Patent Document 1, it would be fine if the pin to prevent scratches on the conductor (core wire) surface could stretch and fit into the locking hole without any problems, but before it fits into the locking hole, it is pushed by the conductor (core wire) or the like, preventing the tip of the pin from fitting into the locking hole, and there is a risk that the pin will continue to be pushed by the core wire or the like, which could cause it to be damaged.

[0009] The present invention has been made in view of the above problems, and its object is to provide a wire stripping tool that can prevent damage to the component equivalent to the pin for preventing scratches on the conductor (core) surface. [Means for solving the problem]

[0010] According to one aspect of the present invention, An opening and closing mechanism; a rotation mechanism that opens, closes, and rotates relative to the opening and closing mechanism; A wire stripping tool including a stripping mechanism attached to the rotating mechanism and adapted to open, close, and rotate together, The peeling mechanism includes a peeling mechanism main body and a cutting mechanism, The peeling mechanism body is configured by combining a first body member and a second body member, the cutting mechanism is attached to the second body member; The first body member is provided with a core wire surface scratch prevention member that extends and contracts toward the second body member, and a support member that supports the core wire surface scratch prevention member from the opposite side of the electric wire. A wire stripping tool is provided.

[0011] Preferably, The core surface scratch prevention member and the support member are each detachable from the first main body member.

[0012] Preferably, The support member has a support portion that supports the core wire surface scratch prevention member, and a connection portion that connects to the first main body member.

[0013] Preferably, The support member is an L-shaped member.

[0014] Preferably, The support portion of the support member has a shape that conforms to the outer shape of the core surface scratch prevention member.

[0015] Preferably, The core surface scratch prevention member interferes with the insulating coating of the electric wire.

[0016] Preferably, The core surface scratch prevention member is made of a material that is softer than the core of the electric wire.

[0017] Preferably, The tip of the core wire surface scratch prevention member that comes into contact with the electric wire has a corner that comes into contact with the electric wire at a position closest to the center of a cross section perpendicular to the longitudinal direction of the electric wire. [Effects of the Invention]

[0018] According to the present invention, the first main body member constituting the peeling mechanism main body is provided with a core wire surface scratch prevention member that extends and contracts toward the second main body member, and further, a support member is also provided that supports this core wire surface scratch prevention member from the opposite side of the electric wire.

[0019] In this way, the core wire surface scratch prevention member in the wire stripping tool of the present invention is supported by a support member connected to the same first main body member on which the core wire surface scratch prevention member is mounted.Therefore, even if the core wire surface scratch prevention member is pressed by the core wire or the like while being extended or retracted, the support member continues to maintain the extension / retraction direction of the core wire surface scratch prevention member, thereby providing a wire stripping tool that can prevent damage to the core wire surface scratch prevention member. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a perspective view showing an electric wire stripping tool 100 to which the present invention is applied. [Figure 2] 1 is a front view of a stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied. [Figure 3] 1 is a rear view showing the wire stripping tool 100 in a standard state. In order to make it easier to see the movement of the open / close lock mechanism 208 and the like, the holding member 118 (indicated by a dotted line) in the foreground of the drawing is shown in perspective. [Figure 4] This is a rear view of the wire stripping tool 100 rotated slightly in the open direction from the standard state. Note that the holding member 118 (dotted line) in the foreground of the figure is shown in perspective to make it easier to see the movement of the open / close lock mechanism 208 and other components. [Figure 5] This is a rear view showing the wire stripping tool 100 rotated further in the open direction from the standard state. Note that the holding member 118 (dotted line) in the foreground of the figure is shown in perspective to make it easier to see the movement of the open / close lock mechanism 208 and other components. [Figure 6] This is a rear view showing the wire stripping tool 100 rotated slightly in the closing direction from the standard state. Note that the holding member 118 (dotted line) in the foreground of the figure is shown in perspective to make it easier to see the movement of the open / close lock mechanism 208 and other components. [Figure 7] This is a rear view showing the wire stripping tool 100 rotated further in the closing direction from the standard state. Note that the holding member 118 (dotted line) in the foreground of the figure is shown in perspective to make it easier to see the movement of the open / close lock mechanism 208 and other components. [Figure 8] 1 is a right side view of a stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied. [Figure 9] 1 is a left side view of a stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied. [Figure 10] 1 is a plan view of a stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied. [Figure 11] 1 is an exploded perspective view of a wire stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied. [Figure 12] 1 is a perspective view showing a state in which a stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied is opened. [Figure 13] 1 is a perspective view showing a state in which a stripping mechanism 300 constituting an electric wire stripping tool 100 to which the present invention is applied is opened. [Figure 14] 14 is a view taken along the arrow AA in FIG. 13, showing the positional relationship between the set electric wire L and the member 400 for preventing scratches on the core wire surface. [Figure 15] 10A and 10B are diagrams showing variations in the shape of the tip of the core wire surface scratch prevention member 400. FIG. [Figure 16] 1 is a perspective view showing a state in which an electric wire L is set in an electric wire stripping tool 100 to which the present invention is applied. DETAILED DESCRIPTION OF THE INVENTION

[0021] (Configuration of the wire stripping tool 100) The wire stripping tool 100 according to this embodiment is generally composed of an opening / closing mechanism 110, a rotating mechanism 200, and a stripping mechanism 300. Fig. 1 is a perspective view showing the wire stripping tool 100 with the stripping mechanism 300 removed, and Fig. 2 is a front view showing the stripping mechanism 300.

[0022] Throughout this specification, the current-carrying member inside the electric wire L is referred to as the core wire S, and the insulating member covering the outside of the core wire S is referred to as the insulating sheath H. Furthermore, the entire core wire S covered with the insulating sheath H is referred to as the covered electric wire L or simply as the electric wire L.

[0023] First, because the opening / closing mechanism 110 and the rotation mechanism 200 are already known, a brief explanation of their operation will be given. Of course, the opening / closing mechanism 110 and the rotation mechanism 200 described below are merely examples, and any opening / closing mechanism 110 and rotation mechanism 200 may be used as long as they can perform the operation of stripping the insulating coating H of the electric wire L.

[0024] 3 shows the opening / closing mechanism 110 and the rotation mechanism 200 in a standard state. From this state, when the operating rod connecting member 125 of the opening / closing mechanism 110 is rotated forward using the operating rod, the rotation mechanism 200 rotates counterclockwise. When the operating rod connecting member 125 of the opening / closing mechanism 110 is rotated backward, the rotation mechanism 200 rotates clockwise.

[0025] First, the operation of rotating the operating rod connecting member 125 in the reverse direction until the rotation mechanism 200 is in an open state will be described. When the operating rod connecting member 125 is rotated in the reverse direction from the state shown in FIG. 3, the outward protrusion 228 of the lock body 222 engages with the hook portion 132 of the opening / closing member 122. When the operating rod connecting member 125 is continued to be rotated in the reverse direction, the rotation mechanism 200 rotates clockwise, and as shown in FIG. 4, the first guide member 218 of the guide member 204 to which the lock body 222 is attached and one end of the first receiving member 210 of the rotational force receiving member 202 fixed thereto move away from the second guide member 220 and second receiving member 212 with which they are combined, and the rotation mechanism 200 and the peeling mechanism 300 enter an open state. When the operating rod connecting member 125 is further rotated in the reverse direction, the degree of separation increases further, and the rotation mechanism 200 enters a fully open state, as shown in FIG. 5. In this state, the electric wire L can be inserted into and removed from the inside of the electric wire stripping tool 100.

[0026] Next, the operation of rotating the operating rod connecting member 125 in the forward direction to close the rotation mechanism 200 will be described. When the operating rod connecting member 125 is rotated in the forward direction from the standard state shown in Fig. 3, the guide member 204 rotates counterclockwise in the figure, and as shown in Fig. 6, the outer surface of the outward protruding portion 228 of the lock body 222 that constitutes the open / close lock mechanism 208 abuts against the lock body pressing member 128 that protrudes from the holding member 118 of the open / close mechanism 110. When the operating rod connecting member 125 is further rotated in the forward direction, the hook portion 226 of the lock body 222 pressed by the lock body pressing member 128 rotates further inward (toward the center), and the hook portion 226 reliably engages with the lock body engaging member 224.

[0027] When the operating rod connecting member 125 is further rotated in the forward direction, the rotation mechanism 200 rotates with the hook portion 226 securely engaged with the lock body engaging member 224, as shown in FIG.

[0028] Next, the peeling mechanism 300 will be described with reference to Figures 2 and 8 to 13. The peeling mechanism 300 according to this embodiment generally comprises a peeling mechanism main body 302 and a cutting mechanism 304.

[0029] The peeling mechanism main body 302 is an approximately cylindrical member, and is formed by combining a first main body member 310 and a second main body member 312, each having an arc-shaped cross section, and has a core wire surface scratch prevention member 400, a support member 410, a wire support member 420, and a wire guide 430.

[0030] As described above, the first main body member 310 has a cross section formed in a substantially arc shape, and the outer diameter of one end is set smaller than the outer diameter of the other end. Note that the other end with the smaller outer diameter is the "rotation mechanism insertion end 314" that is inserted into the center of the front side of the rotation mechanism 200.

[0031] A pair of rotation mechanism mounting protrusions 316 protrude from the edge of the outer surface of the first main body member 310 facing the rotation mechanism insertion end 314. Furthermore, an insertion hole insertion protrusion 318 protrudes from the pair of rotation mechanism mounting protrusions 316 along the direction in which the rotation mechanism insertion end 314 extends.

[0032] Furthermore, a core surface scratch prevention member 400 that expands and contracts toward the second body member 312 is provided on the surface of the first body member 310 facing the second body member 312 .

[0033] The core wire surface scratch prevention member 400 is a substantially cylindrical member, and is biased in a direction extending toward the second main body member 312. In this embodiment, a plunger is used as the core wire surface scratch prevention member 400.

[0034] 14, when the straightened electric wire L is set in the stripping mechanism 300, the outer circumferential surface of the core wire surface scratch prevention member 400 is set to contact the core wire S of the electric wire L. In other words, the core wire surface scratch prevention member 400 is positioned so as to interfere with the insulating coating H of the electric wire L.

[0035] As a result, when the electric wire L before being stripped is set in the stripping mechanism 300, the core wire surface scratch prevention member 400 is pressed by the insulating coating H of the electric wire L and contracted so as to be housed within the first main body member 310 against the above-mentioned biasing force.

[0036] The core wire surface scratch prevention member 400 is preferably made of a material that is softer than the core wire S of the electric wire L. This is because there is a higher probability that the core wire S will not be scratched.

[0037] Furthermore, the tip shape of the core wire surface scratch prevention member 400 that comes into contact with the electric wire L is preferably such that it has a corner 402 that comes into contact with the electric wire at a position closest to the cross-sectional center of the electric wire L. For example, tip shapes such as those shown in Figure 15(a) and (b) are possible.

[0038] 2 and 8 to FIG. 13, a support member 410 is detachably attached to the first main body member 310 to support the extended core surface scratch prevention member 400 from the opposite side of the electric wire L.

[0039] The support member 410 has a support portion 412 that supports the core wire surface scratch prevention member 400, and a connection portion 414 that connects to the first main body member 310. In this embodiment, the support member 410 is a substantially L-shaped member, and the support portion 412 has a shape that follows the outer shape of the core wire surface scratch prevention member 400 (i.e., a circular arc-like concave shape).

[0040] In the present embodiment shown in FIG. 10, a gap X exists between the tip position (the base of the core wire surface scratch prevention member (plunger) 400) of the cylinder 404 on which the core wire surface scratch prevention member (plunger) 400 slides and the support member 410. However, by reducing this gap X to zero, that is, by making the tip position of the cylinder 404 contact with the support member 410, it becomes easier to manage the extended position of the core wire surface scratch prevention member (plunger) 400.

[0041] Furthermore, a thread is formed on the outer surface of the cylinder 404, so that the core wire surface scratch prevention member (plunger) 400 and the cylinder 404 can be attached to and detached from the first main body member 310.

[0042] The second main body member 312 is basically similar in configuration to the first main body member 310, and is formed with a rotation mechanism insertion end portion 314, a rotation mechanism attachment protrusion 316, and an insertion hole insertion protrusion 318. A cutting mechanism 304 is attached to the end face of the rotation mechanism attachment protrusion 316 of the second main body member 312 opposite to the end face where the insertion hole insertion protrusion 318 is protruded.

[0043] In this embodiment, the insertion hole insertion protrusion 318 is formed in a round bar shape, and a circumferential groove 320 is formed at the tip of the insertion hole insertion protrusion 318. Furthermore, it is preferable to chamfer the tip of the insertion hole insertion protrusion 318 in a tapered shape.

[0044] 14, the wire support member 420 is a member arranged on the opposite side of the cutting blade 330 of the cutting mechanism 304 as seen from the core wire surface scratch prevention member 400 along the direction in which the wire L extends, and is configured to come into contact with the surface of the wire L (the surface of the insulating coating H) when stripping begins. In this embodiment, the wire support member 420 is attached to the tip surface of the first main body member 310.

[0045] By providing such a wire support member 420, it is possible to avoid a problem in which the wire L is undesirably bent when the wire L is set in the wire stripping tool 100 and stripping begins, causing the cutting blade 330 to not penetrate to a predetermined depth in the insulating coating H in the initial stage of stripping, thereby not exposing the core wire S, or conversely, the cutting blade 330 penetrates too deeply into the insulating coating H, damaging the core wire S.

[0046] 2 and 8 to 13, the wire guide 430 is a portion that guides the wire L so that the wire L is set in the stripping mechanism 300 along the extension direction of the core wire surface scratch prevention member 400, and in this embodiment, has a first wire support member 432 and a second wire support member 434. The first wire support member 432 and the second wire support member 434 are preferably disposed on both sides of the core wire surface scratch prevention member 400 along the direction in which the wire L extends.

[0047] The first wire support member 432 corresponds to the side surface of the wire support member 420 described above.

[0048] The second wire support member 434 in this embodiment is an approximately cylindrical member that faces the second main body member 312, like the core wire surface scratch prevention member 400, at the rear end on the opposite side of the first main body member 310 to where the wire support member 420 (first wire support member 432) is attached.

[0049] By providing such a first wire support member 432 and a second wire support member 434, when setting the wire L in the stripping mechanism 300, the wire L can be smoothly guided by abutting the peripheral side of the wire L against the first wire support member 432 and the second wire support member 434 and sliding it to a predetermined position.

[0050] As described above, the cutting mechanism 304 is attached to the end face opposite to the end face on which the insertion hole insertion protrusion 318 is protruded from the rotation mechanism attachment protrusion 316 of the second main body member 312. The entire stripping mechanism 300 rotates around the electric wire L, and the cutting mechanism 304 cuts and strips the insulating coating H while moving around the electric wire L.

[0051] The cutting mechanism 304 according to this embodiment generally comprises a cutting blade 330, a cutting blade base member 332, a coating debris fall prevention member 336, a cutting blade rotation center bolt 338, a collar 340, a biasing member 342, and a retaining bolt 344.

[0052] The cutting blade 330 is a member that cuts and strips off the insulating coating H of the electric wire L. In this embodiment, a bolt insertion hole 346 through which a cutting blade rotation center bolt 338 is inserted is formed in approximately the center in the longitudinal direction of the cutting blade 330.

[0053] The cutting blade base member 332 is a member for holding the cutting blade 330 in an appropriate position relative to the peeling mechanism main body 302. The cutting blade base member 332 according to this embodiment has a cutting blade base member main body 348 formed in a substantially rectangular shape, and a base portion 350 protruding perpendicularly from the cutting blade base member main body 348. The cutting blade 330 is configured so that its side surface contacts the cutting blade base member main body 348 and its bottom surface contacts the base portion 350. Furthermore, a second bolt insertion hole (not shown) through which the cutting blade rotation center bolt 338 is inserted is formed in the cutting blade base member main body 348 at a position corresponding to the bolt insertion hole 346 of the cutting blade 330.

[0054] The coating scrap fall prevention member 336 is a member that serves to prevent the coating scraps of the electric wire L, which grow as the work with the electric wire stripping tool 100 progresses, from scattering or falling undesirably. The coating scrap fall prevention member 336 according to this embodiment has a base portion 354 and a coating scrap holding portion 356.

[0055] The base portion 354 is a generally plate-shaped member that covers the outside of the cutting blade 330, and is formed in the general center thereof with a third bolt insertion hole 358 through which the cutting blade rotation center bolt 338 is inserted.

[0056] In addition, the base portion 354 is directly fixed to the second body member 312 of the peeling mechanism body 302 by a fastening bolt 344 .

[0057] The coating scrap holding portion 356 has the role of hooking and holding the insulating coating H (coating scraps) stripped by the cutting blade 330, preventing the insulating coating H from undesirably dropping from the wire stripping tool 100. The coating scrap holding portion 356 according to this embodiment has a rectangular plate-like portion 360 of approximately constant width that extends in a direction away from the cutting blade 330, and a rectangular coating scrap locking portion 362 of approximately constant width that extends in a direction approximately perpendicular to the end of the plate-like portion 360 that is farther from the cutting blade 330. The width of the plate-like portion 360 and the width of the coating scrap locking portion 362 are approximately the same dimension.

[0058] The cutting blade rotation center bolt 338 is a member for attaching the cutting mechanism 304 to the peeling mechanism main body 302. The tip of the cutting blade rotation center bolt 338 is inserted through the third bolt insertion hole 358 in the coating debris fall prevention member 336, the collar 340, the biasing member 342, the bolt insertion hole 346 in the cutting blade 330, and the second bolt insertion hole (not shown) in the cutting blade base member 332, in that order, and finally inserted and screwed into the cutting blade rotation center bolt receiving hole 364 formed in the second main body member 312 of the peeling mechanism main body 302, thereby attaching the cutting mechanism 304 to the peeling mechanism main body 302.

[0059] As described above, the base portion 354 of the coating scrap fall prevention member 336 is fixed to the peeling mechanism main body 302 by the fastening bolt 344. Therefore, the cutting blade 330 is held rotatably between the coating scrap fall prevention member 336 and the peeling mechanism main body 302, centered on the cutting blade rotation center bolt 338.

[0060] The collar 340 is a cylindrical member for providing a clearance between the cutting blade 330 and the coating debris fall prevention member 336 to ensure a space for arranging the biasing member 342 disposed therebetween.

[0061] The biasing member 342 is a member for biasing the cutting blade 330, which is rotatably held between the coating scrap drop prevention member 336 and the peeling mechanism main body 302, so that the cutting blade 330 rotates in a predetermined direction, and in this embodiment, a coil spring is used. Of course, the biasing member 342 is not limited to a coil spring as long as it can bias the cutting blade 330 in the predetermined direction.

[0062] The biasing member 342 biases the cutting blade 330 to rotate in a direction in which the end of the cutting blade 330 that cuts the electric wire L moves toward the center of the electric wire L. By biasing in this manner, the end of the cutting blade 330 that cuts the electric wire L moves toward the center of the electric wire L as cutting progresses, and is able to strip away the insulating coating H. When the end of the cutting blade 330 that cuts the electric wire L advances to reach the core wire S, the tip of the cutting blade base member main body 348 of the cutting blade base member 332 comes into contact with the core wire S or the insulating coating H, thereby preventing the cutting blade 330 from moving any further and touching the core wire S.

[0063] According to the cutting mechanism 304 of this embodiment, when the insulating coating H of the electric wire L is cut with the cutting blade 330, the coating scraps that are generated and extend in a spiral shape advance to the coating scrap holder 356 and wrap around the plate-shaped portion 360 of the coating scrap holder 356. As the cutting of the insulating coating H continues, the coating scraps reach the coating scrap locking portion 362 of the coating scrap holder 356 and then extend beyond the coating scrap holder 356.

[0064] When the insulation scraps extend beyond the insulation scrap retaining portion 362 in this manner, a portion of the insulation scraps always remains engaged with the insulation scrap retaining portion 362. Therefore, when the insulation scraps are separated from the wire L during the stripping operation of the insulating coating H or at the end of the operation, the insulation scraps will not undesirably separate from the wire stripping tool 100.

[0065] (Operation of the wire stripping tool 100 according to the embodiment) Next, we will briefly explain the operation of the above-mentioned electric wire stripping tool 100. Since the opening / closing mechanism 110 and the rotation mechanism 200 rotate as described above, when the stripping mechanism 300 is attached to the rotation mechanism 200 and the operating rod connecting member 125 is rotated in the reverse direction, the rotation mechanism 200 and the stripping mechanism 300 are opened.

[0066] In this state, the electric wire L is set in the peeling mechanism 300, and then the operating rod connecting member 125 is rotated forward, so that the rotation mechanism 200 and the peeling mechanism 300 are brought into a closed state as shown in FIG.

[0067] When the operating rod connecting member 125 is further rotated in the forward direction from this state, the stripping operation of the electric wire L by the stripping mechanism 300 proceeds.

[0068] (Features of the wire stripping tool 100 according to the embodiment) According to the electric wire stripping tool 100 of the above-described embodiment, the first main body member 310 constituting the stripping mechanism main body 302 is provided with a core wire surface scratch prevention member 400 that extends and contracts toward the second main body member 312, and a support member 410 that supports this core wire surface scratch prevention member 400 from the opposite side of the electric wire L has a connection portion 414 that connects to the first main body member 310.

[0069] In this way, the core wire surface scratch prevention member 400 in the wire stripping tool 100 of this embodiment is supported by the support member 410 connected to the same first main body member 310 on which the core wire surface scratch prevention member 400 is provided.Therefore, even if the core wire surface scratch prevention member 400 is pushed by the core wire S or the like while being extended or retracted, the support member 410 continues to maintain the extension / retraction direction of the core wire surface scratch prevention member 400, so it is possible to provide a wire stripping tool 100 that can prevent damage to the core wire surface scratch prevention member 400.

[0070] The peeling mechanism body 302 is also provided with a wire support member 420 that is arranged along the direction in which the wire L extends, on the opposite side of the cutting blade 330 in the cutting mechanism 304 from the core wire surface scratch prevention member 400.

[0071] By providing such a wire support member 420, it is possible to avoid a problem in which the wire L is undesirably bent when the wire L is set in the wire stripping tool 100 and stripping begins, causing the cutting blade 330 to not penetrate to a predetermined depth in the insulating coating H in the initial stage of stripping, thereby not exposing the core wire S, or conversely, the cutting blade 330 penetrates too deeply into the insulating coating H, damaging the core wire S.

[0072] Furthermore, the stripping mechanism body 302 is provided with a wire guide 430 that guides the wire L so that the wire L is set in the stripping mechanism 300 along the extension / contraction direction of the core wire surface scratch prevention member 400 .

[0073] This allows the core surface scratch prevention member 400 to expand and contract smoothly and the wire L to be guided smoothly when the wire L is set in the wire stripping mechanism 300.

[0074] The tip of the core wire surface scratch prevention member 400 that comes into contact with the electric wire L has a corner 402 that comes into contact with the electric wire L at a position closest to the center of the cross section of the electric wire L.

[0075] This minimizes the force with which the tip of the core wire surface scratch prevention member 400, pressed by the electric wire L, is bent away from the direction of expansion and contraction of the core wire surface scratch prevention member 400 when the electric wire L is set in the skin peeling mechanism 300, so that when the electric wire L is set in the skin peeling mechanism 300, the core wire surface scratch prevention member 400 can be expanded and contracted smoothly and the electric wire L can be guided smoothly.

[0076] Furthermore, the support portion 412 of the support member 410 is shaped to conform to the outer shape of the core wire surface scratch prevention member 400, so that the support member 410 can more reliably support the core wire surface scratch prevention member 400 without damaging the surface of the core wire surface scratch prevention member 400.

[0077] Furthermore, by forming the core wire surface scratch prevention member 400 from a material softer than the core wire S of the electric wire L, it is possible to prevent the core wire S from being scratched with a higher probability.

[0078] The embodiments disclosed herein should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined by the claims, not by the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0079] 100...Wire stripping tool 110...opening / closing mechanism, 118...holding member, 122...opening / closing member, 125...operating rod connecting member, 128...lock body pressing member, 132...hook portion 200... rotation mechanism, 202... rotational force receiving member, 204... guide member, 208... open / close lock mechanism, 210... first receiving member, 212... second receiving member, 218... first guide member, 220... second guide member, 222... lock body, 224... lock body engaging member, 226... hook portion, 228... outward protruding portion 300... peeling mechanism, 302... peeling mechanism main body, 304... cutting mechanism, 310... first main body member, 312... second main body member, 314... rotation mechanism insertion end, 316... rotation mechanism mounting protrusion, 318... insertion hole insertion protrusion, 320... circumferential groove 330...Cutting blade, 332...Cutting blade base member, 336...Coating scrap fall prevention member, 338...Cutting blade pivot center bolt, 340...Collar, 342...Using member, 344...Retaining bolt, 346...Bolt insertion hole, 348...Cutting blade base member main body, 350...Base portion, 354...Base portion, 356...Coating scrap holding portion, 358...Third bolt insertion hole, 360...Plate-shaped portion, 362...Coating scrap locking portion, 364...Cutting blade pivot center bolt receiving hole 400...core wire surface scratch prevention member, 402...corner portion, 404...cylinder 410...support member, 412...support portion, 414...connection portion 420... Wire support member 430...electric wire guide, 432...first electric wire support member, 434...second electric wire support member L...wire (coated wire), S...core wire, H...insulating coating, X...gap

Claims

1. An opening and closing mechanism; a rotation mechanism that opens, closes, and rotates relative to the opening and closing mechanism; A wire stripping tool including a stripping mechanism attached to the rotating mechanism and adapted to open, close, and rotate together, The peeling mechanism includes a peeling mechanism main body and a cutting mechanism, The peeling mechanism body is configured by combining a first body member and a second body member, the cutting mechanism is attached to the second body member; The first body member is provided with a core wire surface scratch prevention member that extends and contracts toward the second body member, and a support member that supports the core wire surface scratch prevention member from the opposite side of the electric wire. Wire stripping tool.

2. The core wire surface scratch prevention member and the support member are each detachable from the first main body member. The wire stripping tool according to claim 1.

3. The support member has a support portion that supports the core surface scratch prevention member and a connection portion that connects to the first main body member. The wire stripping tool according to claim 1 or 2.

4. The support member is an L-shaped member. The wire stripping tool according to claim 1 or 2.

5. The support portion of the support member has a shape that conforms to the outer shape of the core surface scratch prevention member. The wire stripping tool according to claim 3.

6. The core surface scratch prevention member is configured to prevent interference with the insulating coating of the electric wire. The wire stripping tool according to claim 1 or 2.

7. The core wire surface scratch prevention member is formed of a material softer than the core wire of the electric wire. The wire stripping tool according to claim 1 or 2.

8. The tip of the core wire surface scratch prevention member that comes into contact with the electric wire has a corner that comes into contact with the electric wire at a position closest to the center of a cross section perpendicular to the longitudinal direction of the electric wire. The wire stripping tool according to claim 1 or 2.

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