Wire stripper

Abstract

The present invention provides a wire stripping tool that is less likely to cause problems when stripping insulation coatings, even when materials with low rigidity and high thickness are used for the insulation coating. [Solution] The wire stripping tool 100 is composed of an opening / closing mechanism 110, a rotating mechanism 200 that opens and closes and rotates relative to the opening / closing mechanism 110, and a stripping mechanism 300 that is attached to the rotating mechanism 200 and opens and closes and rotates together. The stripping mechanism 300 has a cutting blade 330 and a covering presser 334. The cutting blade 330 has a pair of vertical blades 400 and a lower blade 402 disposed between the pair of vertical blades 400. The covering presser 334 is disposed so that one corner fits between the pair of vertical blades 400 and has a pressing surface 454 that contacts the insulating coating H as it begins to be stripped.

Description

Technical Field

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[0001] The present invention relates to a wire stripping tool used for peeling off an insulating coating of a certain length in the middle part of a wire.

Background Art

[0002] When performing construction work on power distribution equipment, bypass work or grounding work may be carried out to perform partial power outages. At that time, in order to form a bypass or grounding path, the insulating coating in the middle part of the wire is peeled off to expose the core wire, which is a conductor, and the work of connecting a bypass device or a grounding device thereto is required to be carried out while the wire is in a live state.

[0003] In response to such requirements, a wire stripping tool has been developed that can cut and peel the insulating coating in a spiral shape at the middle part of the wire without the operator directly touching the wire or the like (for example, Patent Document 1). After a predetermined construction is completed, restoration is achieved by attaching a plastic insulating cover to the exposed part of the core wire.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in recent years, insulating coatings made of materials with low rigidity (soft) such as EP rubber and having a thick thickness (for example, 3 mm to 5 mm) are often used for wires, and there are increasing cases where the peeling of the insulating coating does not work well with conventional wire coating tools as disclosed in Patent Document 1.

[0006] Specific examples of problems include: the low rigidity of the insulation coating twists, making it difficult to cut with the blade of a wire stripping tool; the insulation coating slips on the surface of the braid placed between the core wire and the insulation coating, accelerating the twisting; and when the insulation coating reaches a high temperature (e.g., 60°C or higher), it may tear in a direction different from the stripping direction by the wire stripping tool.

[0007] This invention has been made in view of these problems, and its purpose is to provide a wire stripping tool that does not cause problems when stripping an insulating coating, even when a material with low rigidity and high thickness is used for the insulating coating. [Means for solving the problem]

[0008] According to one aspect of the present invention, Opening and closing mechanism, A rotating mechanism that opens and closes and rotates relative to the aforementioned opening and closing mechanism, A wire stripping tool comprising a stripping mechanism attached to the aforementioned rotating mechanism and which opens, closes and rotates together, The peeling mechanism comprises a cutting blade and a coating presser, The cutting blade comprises a pair of vertical blades and a lower blade disposed between the pair of vertical blades. The aforementioned coating presser is positioned such that one corner fits between the pair of vertical blades, and has a pressing surface that contacts the insulating coating as it begins to be peeled off. A wire stripping tool is provided.

[0009] Preferably, The height of the vertical blade portion in the aforementioned vertical blade is greater than the thickness of the insulating coating.

[0010] Preferably, The distance between the pair of vertical blades is greater than the feed width of the peeling mechanism when the rotating mechanism is rotated once.

[0011] Preferably, The vertical blade protrudes more than the lower blade.

[0012] Preferably, The vertical blade has a vertical blade portion extending in the thickness direction of the insulating coating and a bottom blade portion extending in a direction intersecting the vertical blade portion from the end of the vertical blade portion closest to the insulating coating. [Effects of the Invention]

[0013] According to the present invention, the peeling mechanism comprises a cutting blade and a coating presser, the cutting blade comprising a pair of vertical blades and a lower blade disposed between the pair of vertical blades, and the coating presser is disposed such that one corner fits between the pair of vertical blades and has a pressing surface that contacts the insulating coating that has begun to be peeled.

[0014] As a result, when the wire stripping tool is used on an electric wire with an insulating coating made of a material that is low in rigidity and thick, the pair of vertical blades cut away the insulating coating, and the insulating coating that has protruded outward comes into contact with the pressing surface of the coating holder and cannot escape any further outward, so the vertical blades penetrate deeper into the insulating coating, and then the lower blade strips off the insulating coating.

[0015] Thus, according to the present invention, we have been able to provide a wire stripping tool that is less prone to problems when stripping the insulating coating. [Brief explanation of the drawing]

[0016] [Figure 1] This is a perspective view showing a wire stripping tool 100 to which the present invention is applied. [Figure 2] This is a perspective view of the stripping mechanism 300 that constitutes the wire stripping tool 100 to which the present invention is applied. [Figure 3] This is a rear view showing the wire stripping tool 100 in its standard state. Note that the retaining member 118 (dotted line) in the foreground of the diagram is shown transparently to make the movement of the opening / closing locking mechanism 208 and other components easier to see. [Figure 4]This is a rear view showing the wire stripping tool 100 in a state where it is slightly rotated in the opening direction from the reference state. Note that in order to clearly show the movement of the opening / closing lock mechanism 208 and the like, a perspective view of the holding member 118 (dotted line) in front in the figure is shown. [Figure 5] This is a rear view showing the wire stripping tool 100 in a state where it is further rotated in the opening direction from the reference state. Note that in order to clearly show the movement of the opening / closing lock mechanism 208 and the like, a perspective view of the holding member 118 (dotted line) in front in the figure is shown. [Figure 6] This is a rear view showing the wire stripping tool 100 in a state where it is slightly rotated in the closing direction from the reference state. Note that in order to clearly show the movement of the opening / closing lock mechanism 208 and the like, a perspective view of the holding member 118 (dotted line) in front in the figure is shown. [Figure 7] This is a rear view showing the wire stripping tool 100 in a state where it is further rotated in the closing direction from the reference state. Note that in order to clearly show the movement of the opening / closing lock mechanism 208 and the like, a perspective view of the holding member 118 (dotted line) in front in the figure is shown. [Figure 8] This is a top view showing the open state of the stripping mechanism 300 that constitutes the wire stripping tool 100 to which the present invention is applied. [Figure 9] This is a side view showing the open state of the stripping mechanism 300 that constitutes the wire stripping tool 100 to which the present invention is applied. [Figure 10] This is an exploded perspective view of the stripping mechanism 300 that constitutes the wire stripping tool 100 to which the present invention is applied. [Figure 11] This is a perspective view of the tip of the cutting edge 330 in the stripping mechanism 300 to which the present invention is applied, (a) seen from obliquely above the tip, and (b) seen from obliquely below the tip and looking up. [Figure 12] This is a diagram showing the relationship between the longitudinal blade portion 406 and the central axis X1 of the electric wire L. [Figure 13] This is a (a) top view and (b) side view showing the relationship between the central axis X2 of the lower blade 402 and the central axis X1 of the electric wire L. [Figure 14] This is a perspective view showing the covering presser bracket 450. [Figure 15]This is a perspective view showing a wire L set in a wire stripping tool 100 to which the present invention is applied. [Figure 16] This diagram illustrates the state in which the vertical blade portion 406 begins to come into contact with the insulating coating H. [Figure 17] This diagram illustrates the process of the lower blade portion 416 stripping off the insulating coating H. [Figure 18] (a) A perspective view of the tip of the cutting blade 330 according to Modification 1, viewed from diagonally above, and (b) A perspective view of the tip viewed from diagonally below. [Figure 19] This figure illustrates the state in which the vertical cutting edge portion 406 of the cutting blade 330 according to Modified Example 1 begins to come into contact with the insulating coating H. [Figure 20] This figure illustrates the positional relationship between the end 502 of the bottom cutting edge portion 500 of the cutting blade 330 and the insulating coating H in the modified example 1. [Modes for carrying out the invention]

[0017] (Components 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. Figure 1 is a perspective view showing the wire stripping tool 100 with the stripping mechanism 300 removed, and Figure 2 is a perspective view showing the stripping mechanism 300.

[0018] Throughout this specification, the conductive component inside the electric wire L is referred to as the core wire S, and the insulating material covering the outside of the core wire S is referred to as the insulating sheath H. Furthermore, the entire core wire S covered by the insulating sheath H is referred to as the insulated electric wire L or simply electric wire L. Of course, a braid may be placed between the core wire S and the insulating sheath H.

[0019] First, since the opening / closing mechanism 110 and the rotating mechanism 200 are already known, we will briefly explain their operation. Of course, the opening / closing mechanism 110 and the rotating mechanism 200 described below are just examples, and any opening / closing mechanism 110 and rotating mechanism 200 that can strip the insulating coating H from the electric wire L may be used.

[0020] Figure 3 shows the opening / closing mechanism 110 and the rotating mechanism 200 in their standard state. From this state, rotating the operating rod connecting member 125 of the opening / closing mechanism 110 in the forward direction using the operating rod causes the rotating mechanism 200 to rotate counterclockwise. Rotating the operating rod connecting member 125 of the opening / closing mechanism 110 in the reverse direction causes the rotating mechanism 200 to rotate clockwise.

[0021] First, we will explain the operation of rotating the operating rod connecting member 125 in the reverse direction to open the rotation mechanism 200. When the operating rod connecting member 125 is rotated in the reverse direction from the state shown in Figure 3, the outward projection 228 of the lock body 222 engages with the hook portion 132 of the opening / closing member 122. Continuing to rotate the operating rod connecting member 125 in the reverse direction causes the rotation mechanism 200 to rotate clockwise, and as shown in Figure 4, one end of the first guide member 218 of the guide member 204 to which the lock body 222 is attached, and the first receiving member 210 of the rotation force receiving member 202 fixed thereto, move away from the combined second guide member 220 and second receiving member 212, causing the rotation mechanism 200 and the peeling mechanism 300 to open. Further rotating the operating rod connecting member 125 in the reverse direction increases the degree of separation, as shown in Figure 5, until the rotation mechanism 200 is fully open. In this state, the electric wire L can be inserted into and removed from the inside of the electric wire stripping tool 100.

[0022] Next, we will describe the operation of closing the rotation mechanism 200 by rotating the operating rod connecting member 125 in the forward direction. When the operating rod connecting member 125 is rotated in the forward direction from the reference state shown in Figure 3, the guide member 204 rotates counterclockwise in the figure, and as shown in Figure 6, the outer surface of the outward projection 228 of the lock body 222 that constitutes the opening / closing lock mechanism 208 comes into contact with the lock body pressing member 128 that protrudes from the holding member 118 of the opening / closing mechanism 110. When the operating rod connecting member 125 is rotated further in the forward direction, the hook portion 226 of the lock body 222, which is pressed by the lock body pressing member 128, rotates further inward (towards the center), and the hook portion 226 securely engages with the lock body engaging member 224.

[0023] Furthermore, as the operating rod connecting member 125 is rotated in the forward direction, the rotation mechanism 200 rotates while the hook portion 226 remains securely engaged with the lock body engaging member 224, as shown in Figure 7.

[0024] Next, the peeling mechanism 300 will be described using Figures 2, 8 to 10. The peeling mechanism 300 according to this embodiment generally comprises a peeling mechanism body 302 and a cutting mechanism 304.

[0025] The peeling mechanism body 302 is a substantially cylindrical member, and is constructed by combining a first body member 310 and a second body member 312, both of which have arc-shaped cross-sections.

[0026] As described above, the first main body member 310 has a roughly arc-shaped cross-section, with the outer diameter of one end being smaller than the outer diameter of the other end. The other end with the smaller outer diameter is the "rotating mechanism insertion end 314" which is inserted into the central front part of the rotating mechanism 200.

[0027] Furthermore, a pair of rotating mechanism mounting protrusions 316 are provided on the outer surface of the first main body member 310, on the edge facing the rotating mechanism insertion end 314. In addition, insertion hole insertion protrusions 318 are provided from this pair of rotating mechanism mounting protrusions 316, along the direction in which the rotating mechanism insertion end 314 extends.

[0028] The second main body member 312 has basically the same configuration as the first main body member 310, and has a rotating mechanism insertion end 314, a rotating mechanism mounting projection 316, and an insertion hole insertion projection 318. The cutting mechanism 304 is attached to the end face of the second main body member 312 opposite to the side of the rotating mechanism mounting projection 316 from which the insertion hole insertion projection 318 is provided.

[0029] In this embodiment, the insertion hole projection 318 is formed in the shape of a round bar, and a circumferential groove 320 is formed at its tip. Furthermore, it is preferable to chamfer the tip of the insertion hole projection 318 in a tapered shape.

[0030] As described above, the cutting mechanism 304 is attached to the end face of the second main body member 312 opposite to the end face where the insertion hole insertion projection 318 is provided on the rotating mechanism mounting projection 316. As the entire stripping mechanism 300 rotates around the electric wire L, the cutting mechanism 304 rotates around the electric wire L and cuts and strips off the insulating coating H.

[0031] The cutting mechanism 304 according to this embodiment generally comprises a cutting blade 330, a cutting blade holder member 332, a covering retainer 334, a covering debris fall prevention member 336, a cutting blade rotation center bolt 338, a biasing member 342, and a retaining bolt 344.

[0032] The cutting blade 330 is a component that cuts and strips the insulating coating H of the electric wire L. As shown in Figure 11, the cutting blade 330 according to this embodiment comprises a pair of vertical blades 400 and a lower blade 402 disposed between the vertical blades 400.

[0033] The vertical blade 400 has a vertical blade portion 406 formed at the tip of a strip-shaped vertical blade body portion 404. As shown in Figure 12, when the end of the vertical blade portion 406 is viewed from the front, the vertical blade portion 406 is positioned perpendicular to the central axis X1 of the electric wire L (and core wire S).

[0034] Returning to Figure 11, the vertical blade body 404 has two vertical blade mounting screw holes 410 into which vertical blade mounting screws 408 are inserted, and the vertical blade 400 is fixed to the lower blade 402 by the vertical blade mounting screws 408.

[0035] Furthermore, the inclined surfaces 412 of the vertical blade portion 406 are arranged to face outwards.

[0036] Furthermore, it is preferable that the height of the vertical blade portion 406 be greater than the thickness of the insulating coating H on the electric wire L. This is because making the height of the vertical blade portion 406 greater than the thickness of the insulating coating H makes it easier to cut the insulating coating H.

[0037] Furthermore, it is preferable that the distance between the pair of vertical blades 400 be greater than the feed width of the peeling mechanism 300 when the rotating mechanism 200 is rotated once. This is because it is possible to avoid leaving any insulation coating H behind when peeling is performed.

[0038] The lower blade 402 has a lower blade portion 416 formed at the tip of a rectangular lower blade body portion 414. As shown in Figure 12, when the end of the lower blade portion 416 is viewed from the front, the lower blade portion 416 is positioned parallel to the central axis X1 of the electric wire L (and core wire S).

[0039] Returning to Figure 11, vertical blade mounting screw holes 418 are formed on both sides of the lower blade body 414, into which the vertical blade mounting screws 408 are screwed.

[0040] Furthermore, the inclined surface 420 of the lower blade portion 416 is positioned in a direction that moves away from the electric wire L.

[0041] Furthermore, as shown in Figure 13, when the end of the lower blade portion 416 is viewed from directly above, the central axis X2 of the lower blade 402 is positioned at a predetermined angle α with respect to the central axis X1 of the electric wire L (and core wire S). This predetermined angle α is determined by the relationship between the shortest length A from the central axis X1 of the electric wire L (and core wire S) to the lower blade portion 416 and the width B of the lower blade portion 416.

[0042] Furthermore, when viewing the end of the lower blade portion 416 from directly above, the vertical blade portion 406 protrudes more than the lower blade portion 416. Therefore, when the cutting blade 330 is brought closer to the electric wire L, the vertical blade portion 406 contacts the insulating coating H first, followed by the lower blade portion 416.

[0043] Furthermore, bolt insertion holes 346 are formed through the sides of the pair of vertical blades 400 and lower blades 402, through which the cutting blade rotation center bolt 338 is inserted.

[0044] Returning to Figure 10, the cutting blade holder member 332 is a member for holding the cutting blade 330 in the correct position relative to the peeling mechanism body 302. The cutting blade holder member 332 according to this embodiment has a cutting blade holder member body portion 348 formed in a substantially rectangular shape, and a base portion 350 projecting perpendicularly from the cutting blade holder member body portion 348. The cutting blade 330 has its side surface in contact with the cutting blade holder member body portion 348, and its bottom surface in contact with the base portion 350. In addition, a second bolt insertion hole (not shown) is formed in the cutting blade holder member body portion 348 at a position corresponding to the bolt insertion hole 346 of the cutting blade 330, through which the cutting blade rotation center bolt 338 is inserted.

[0045] The insulation retainer 334 has the role of holding down the insulating coating H that has begun to be stripped by the cutting blade 330 in the direction of the core wire S, and in this embodiment it comprises an insulation retainer bracket 450 and a bracket support member 452.

[0046] Referring to Figures 10 and 14, in this embodiment, the insulation retaining bracket 450 is a substantially arc-shaped plate material, and its thickness is set to be slightly thinner than the width of the lower blade portion 416 (i.e., the distance between the pair of vertical blades 400). The insulation retaining bracket 450 also has a retaining surface 454 on a part of its thickness-direction surface (circumferential surface) that contacts the insulation coating H as it begins to be stripped, and this retaining surface 454 is positioned to face the electric wire L. Furthermore, one corner of the insulation retaining bracket 450, including the retaining surface 454, is positioned to fit between the pair of vertical blades 400.

[0047] More specifically, when viewed in a plane perpendicular to the central axis X1 of the electric wire L, the clamping surface 454 is a curved surface centered on the central axis X1 of the electric wire L. In other words, the surface of the electric wire L and the clamping surface 454 are concentric.

[0048] Furthermore, the covering retaining bracket 450 has bracket mounting screw holes 458 into which bracket mounting screws 456 are inserted, and the covering retaining bracket 450 is fixed to the bracket support member 452 by these bracket mounting screws 456.

[0049] In this embodiment, the bracket support member 452 is a substantially L-shaped curved member, and has a bracket mounting screw hole (not shown) into which a bracket mounting screw 456 is screwed, and two bracket fixing screw holes 464 into which bracket fixing screws 462 for fixing the bracket support member 452 to the second main body member 312 are inserted. The bracket support member 452 and the covering retaining bracket 450 are fixed to the second main body member 312 by these bracket fixing screws 462.

[0050] Returning to Figure 10, the coating debris fall prevention member 336 is a member that prevents the coating debris of the electric wire L, which extends as the work with the electric wire stripping tool 100 progresses, from scattering or falling undesirably. The coating debris fall prevention member 336 according to this embodiment has a base portion 354 and a coating debris holding portion 356.

[0051] The base portion 354 is a roughly plate-shaped material that is placed over the outside of the cutting blade 330, and a third bolt insertion hole 358 is formed in its approximate center through which the cutting blade rotation center bolt 338 is inserted.

[0052] Furthermore, the base portion 354 is directly fixed to the second main body member 312 of the peeling mechanism body 302 by retaining bolts 344.

[0053] As described above, the coating debris holding portion 356 has the role of hooking and holding the insulating coating H (coating debris) stripped off by the cutting blade 330, thereby preventing the insulating coating H from falling unintentionally from the wire stripping tool 100. The coating debris holding portion 356 according to this embodiment has a plate-like portion 360 in the shape of a strip of substantially constant width that extends in a direction away from the cutting blade 330, and a coating debris locking portion 362 in the shape of a strip of substantially constant width that extends in a direction substantially perpendicular to the end of the plate-like portion 360 on the side furthest from the cutting blade 330.

[0054] The cutting blade rotation center bolt 338 is a component for attaching the cutting mechanism 304 to the peeling mechanism body 302. The tip of the cutting blade rotation center bolt 338 is inserted in the following order: through the third bolt insertion hole 358 in the coating debris fall prevention member 336, through the biasing member 342, through the bolt insertion hole 346 in the cutting blade 330, and through the second bolt insertion hole (not shown) in the cutting blade base member 332. Finally, the cutting mechanism 304 is attached to the peeling mechanism body 302 by inserting and screwing it into the cutting blade rotation center bolt receiving hole 364 formed in the second body member 312 of the peeling mechanism body 302.

[0055] As described above, the coating debris fall prevention member 336 has its base portion 354 fixed to the peeling mechanism body 302 by a retaining bolt 344. Therefore, the cutting blade 330 is held rotatably between the coating debris fall prevention member 336 and the peeling mechanism body 302, with the cutting blade rotation center bolt 338 as the center.

[0056] The biasing member 342 is a member that biases the cutting blade 330, which is rotatably held between the coating debris fall prevention member 336 and the peeling mechanism body 302, so that it rotates in a predetermined direction. In this embodiment, a coil spring is used. Of course, it is not limited to a coil spring as long as it can bias the cutting blade 330 in a predetermined direction.

[0057] The biasing member 342 biases the cutting blade 330 to rotate in the direction that 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 way, as the cutting end of the cutting blade 330 moves toward the center of the electric wire L as cutting progresses, the insulating coating H can be stripped off. When the end of the cutting blade 330 that cuts the electric wire L reaches the core wire S, the tip of the main body portion 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.

[0058] According to the cutting mechanism 304 of this embodiment, as the insulating coating H of the electric wire L is cut by the cutting blade 330, the coating debris generated in a spiral shape advances to the coating debris holding part 356 and wraps around the plate-shaped part 360 of the coating debris holding part 356. As the cutting of the insulating coating H continues, the coating debris reaches the coating debris locking part 362 of the coating debris holding part 356 and extends further beyond the coating debris holding part 356.

[0059] As the coating debris extends beyond the coating debris locking portion 362, a portion of the coating debris will always remain engaged with the coating debris locking portion 362. Therefore, when the coating debris separates from the wire L during or after the stripping of the insulating coating H, the coating debris will not unintentionally detach from the wire stripping tool 100.

[0060] (Operation of the wire stripping tool 100 according to the embodiment) Next, the operation of the wire stripping tool 100 described above will be briefly explained with reference to Figure 15. As described above, the opening / closing mechanism 110 and the rotating mechanism 200 rotate, so when the stripping mechanism 300 is attached to the rotating mechanism 200 and the operating rod connecting member 125 is rotated in the reverse direction, the rotating mechanism 200 and the stripping mechanism 300 will open.

[0061] In this state, the electric wire L is set into the stripping mechanism 300, and then the operating rod connecting member 125 is rotated in the forward direction, causing the rotation mechanism 200 and the stripping mechanism 300 to close.

[0062] If the operating rod connecting member 125 is rotated further in the forward direction from this state, the cutting blade 330 of the stripping mechanism 300 will come into contact with the insulating coating H of the electric wire L, and if it is rotated further in the forward direction, the stripping of the insulating coating H by the cutting blade 330 will begin.

[0063] In the case of the cutting blade 330 according to the embodiment, as described above, the vertical blade portion 406 is in a more protruding position than the lower blade portion 416, so the vertical blade portion 406 hits the insulating coating H first (Figure 16), and as the vertical blade portion 406 cuts the insulating coating H, the insulating coating H, which is pressed by the vertical blade portion 406, twists and bulges outward.

[0064] As the operating rod connecting member 125 is rotated further in the forward direction, the insulating coating H that has protruded outward comes into contact with the pressing surface 454 of the coating pressing bracket 450 and can no longer escape outward, so the vertical blade portion 406 penetrates deeper into the insulating coating H, and then the lower blade portion 416 peels off the insulating coating H (Figure 17).

[0065] Once the stripping of the insulating coating H begins in this manner, the insulating coating H can be stripped from the wire L to the required extent by rotating the operating rod connecting member 125 in the forward direction.

[0066] (Features of the wire stripping tool 100 according to the embodiment) According to the wire stripping tool 100 of the above-described embodiment, the stripping mechanism 300 comprises a cutting blade 330 and a coating presser 334. The cutting blade 330 comprises a pair of vertical blades 400 and a lower blade 402 disposed between the pair of vertical blades 400. The coating presser 334 is disposed such that one corner fits between the pair of vertical blades 400 and has a pressing surface 454 that contacts the insulating coating H as it begins to be stripped.

[0067] As a result, when the wire stripping tool 100 is used on an electric wire L having an insulating coating H made of a material with low rigidity and high thickness, the pair of vertical blades 400 cut out the insulating coating H, and the insulating coating H that has protruded outward comes into contact with the pressing surface 454 of the coating presser 334 and cannot escape any further outward, so the vertical blades 400 penetrate deeper into the insulating coating H, and then the lower blade 402 strips off the insulating coating H.

[0068] Thus, according to the wire stripping tool 100 of the above embodiment, problems are less likely to occur when stripping the insulating coating H.

[0069] (Variation 1) In the wire stripping tool 100 according to the above embodiment, the vertical blade 400 had a vertical blade portion 406 extending in the thickness direction of the insulating coating H. In addition, as shown in Figure 18, a bottom blade portion 500 may be provided that extends from the end of the vertical blade portion 406 closest to the insulating coating H in a direction intersecting the vertical blade portion 406.

[0070] By adding the bottom blade portion 500, as shown in Figure 19, when the vertical blade 400 begins to cut the insulating coating H in the initial stage of peeling, the vertical blade portion 406 can be inserted into the insulating coating H more smoothly.

[0071] Furthermore, when the end of the lower blade portion 416 reaches the insulating coating H and the cutting blade 330 is fully inserted into the insulating coating H, it is preferable to set the length of the bottom blade portion 500 such that the end 502 of the bottom blade portion 500 furthest from the insulating coating H does not come into contact with the insulating coating H, as shown in Figure 20.

[0072] The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. The scope of the present invention is indicated by the claims rather than by the foregoing description, and all modifications within the meaning and scope equivalent to the claims are intended to be included. [Explanation of Symbols]

[0073] 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 part 200...Rotation mechanism, 202...Rotation force receiving member, 204...Guide member, 208...Opening / closing locking 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 part, 228...Outward projection part 300... Peeling mechanism, 302... Peeling mechanism body, 304... Cutting mechanism, 310... First body member, 312... Second body member, 314... Rotation mechanism insertion end, 316... Rotation mechanism mounting projection, 318... Insertion hole insertion projection, 320... Circumferential groove 330…Cutting blade, 332…Cutting blade base member, 334…Covering retainer, 336…Covering debris fall prevention member, 338…Cutting blade rotation center bolt, 342…Biasing member, 344…Retaining bolt, 346…Bolt insertion hole, 348…Cutting blade base member main body, 350…Base part, 354…Base part, 356…Covering debris holding part, 358…Third bolt insertion hole, 360…Plate-shaped part, 362…Covering debris locking part, 364…Cutting blade rotation center bolt receiving hole 400…Vertical blade, 402…Lower blade, 404…Vertical blade body, 406…Vertical blade section, 408…Vertical blade mounting screw, 410…Vertical blade mounting screw hole, 412…Inclined surface (of the vertical blade section), 414…Lower blade body, 416…Lower blade section, 418…Vertical blade mounting screw hole, 420…Inclined surface (of the lower blade section) 450... Covering retaining bracket, 452... Bracket support member, 454... Retaining surface, 456... Bracket mounting screw, 458... Bracket mounting screw hole, 462... Bracket fixing screw, 464... Bracket fixing screw hole 500...Bottom cutting edge, 502...End (of bottom cutting edge 500) L...Wire (insulated wire), S...Core wire, H...Insulation coating, X...Gap X1...Central axis of the electric wire L (and core wire S), X2...Central axis of the lower blade 402

Claims

1. Opening and closing mechanism, A rotating mechanism that opens and closes and rotates relative to the aforementioned opening and closing mechanism, A wire stripping tool comprising a stripping mechanism attached to the aforementioned rotating mechanism and which opens, closes and rotates together, The peeling mechanism comprises a cutting blade and a coating presser, The cutting blade comprises a pair of vertical blades and a lower blade disposed between the pair of vertical blades. The aforementioned coating presser is positioned such that one corner fits between the pair of vertical blades, and has a pressing surface that contacts the insulating coating as it begins to be peeled off. Wire stripping tool.

2. The height of the vertical blade portion in the aforementioned vertical blade is greater than the thickness of the insulating coating. The wire stripping tool according to claim 1.

3. The distance between the pair of vertical blades is greater than the feed width of the peeling mechanism when the rotating mechanism is rotated once. The wire stripping tool according to claim 1.

4. The vertical blade protrudes more than the lower blade. The wire stripping tool according to claim 1.

5. The vertical blade has a vertical blade portion extending in the thickness direction of the insulating coating, and a bottom blade portion extending in a direction intersecting the vertical blade portion from the end of the vertical blade portion closest to the insulating coating. The wire stripping tool according to claim 1.

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