Wire stripping tool

The wire coating stripping tool addresses the challenge of removing multiple coating layers by employing a switchable guiding and handle mechanism with adjustable blades, ensuring clean and stable stripping of diverse wire coatings.

JP2026067003APending Publication Date: 2026-04-20TOSHIN ELECTRIC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOSHIN ELECTRIC
Filing Date
2024-10-08
Publication Date
2026-04-20

AI Technical Summary

Technical Problem

Conventional wire coating stripping tools struggle to effectively remove multiple layers of different materials, as they require appropriate blade changes based on the type of coating layer, leading to incomplete stripping.

Method used

A wire coating stripping tool with a switchable wire guiding portion and handle portion, featuring multiple cutting blades and adjustable positions, allowing for optimal contact with each coating layer, and eccentric insertion holes to maintain wire straightness during rotation.

Benefits of technology

The tool reliably strips each coating layer, even for wires with multiple layers of different materials, ensuring clean and stable removal by adjusting blade positions and maintaining wire alignment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a wire stripping tool that can reliably strip each layer of insulation from a wire composed of multiple insulation layers of different types. [Solution] The wire stripping tool 900 comprises a wire guide section 300, a main body section 200, and a handle section 100. The main body section comprises a main body-side insertion hole 240 through which a wire W0 is inserted, a first cutting blade 210 protruding from the inner surface of the main body-side insertion hole, and a second cutting blade 220. The wire guide section comprises a guide-side insertion hole 340 through which a wire is inserted and can be positioned on one end of the main body section. The handle section comprises a handle-side insertion hole through which a wire is inserted and can be positioned on the other end of the main body section. The wire guide section is configured to be switchable between a first guide position, where the guide-side insertion hole is brought closer to the first cutting blade side of the main body section, and a second guide position, where the guide-side insertion hole is brought closer to the second cutting blade side of the main body section.
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Description

Technical Field

[0001] The present invention relates to a wire coating stripping tool for cutting and peeling a coating layer of a wire or the like.

Background Art

[0002] Conventionally, an operator has used a wire coating stripping tool to cut off the coating layer of a wire. However, depending on the type of wire, the coating layer has a multi-layer structure of different materials, and depending on the material of each coating layer, if the type of cutting blade is not appropriately changed, the coating layer may not be successfully cut off.

Summary of the Invention

Problems to be Solved by the Invention

[0003] Therefore, in view of the above problems, the present invention provides a wire coating stripping tool that can stably peel off each coating layer even for a wire composed of a plurality of different types of coating layers.

Means for Solving the Problems

[0004] In order to solve the above problems, the wire coating stripping tool of the present invention is a wire coating stripping tool, comprising a wire guiding portion, a main body portion, and a handle portion. The main body portion includes a main body-side insertion hole through which a wire is inserted, a first cutting blade protruding from the inner surface of the main body-side insertion hole, and a second cutting blade. The wire guiding portion includes a guiding-side insertion hole through which the wire is inserted, and can be disposed on one end side of the main body portion. The handle portion includes a handle-side insertion hole through which the wire is inserted, and can be disposed on the other end side of the main body portion. The wire guiding portion is configured to be switchable between a first guiding position in which the guiding-side insertion hole is close to the first cutting blade side of the main body portion and a second guiding position in which the guiding-side insertion hole is close to the second cutting blade side of the main body portion.

[0005] According to the above features, the wire guide section and handle section allow the wire to be properly brought into contact with the first cutting blade or the second cutting blade and cut, so that each coating layer can be reliably stripped off.

[0006] Furthermore, in order to solve the above problems, the wire stripping tool of the present invention is characterized in that the handle portion is configured to be switchable between a first handle position in which the handle-side insertion hole is positioned at a predetermined distance from the first-insertion blade side of the main body portion, and a second handle position in which the handle-side insertion hole is positioned closer to the first-insertion blade side of the main body portion.

[0007] According to the above features, the first insertion blade can make contact with each insulation layer of the electric wire inserted through the handle-side insertion hole at the optimal position, allowing each insulation layer to be cleanly stripped off.

[0008] Furthermore, in order to solve the above problems, the wire stripping tool of the present invention is characterized in that the second cutting blade is configured to move closer to or further away from the center of the insertion hole on the main body side.

[0009] According to the above features, the second cutting blade can be brought closer to or further away from the electric wire so as to contact the insulation layer, depending on the thickness of the insulation layer of the electric wire.

[0010] Furthermore, in order to solve the above problems, the wire stripping tool of the present invention is characterized in that the center of the guide-side insertion hole of the wire guide portion is eccentric with respect to the center of the main body-side insertion hole of the main body portion.

[0011] Based on the above features, the mounting orientation to the main unit can be easily switched between the first guidance position and the second guidance position simply by reversing the orientation up and down.

[0012] Furthermore, in order to solve the above problems, the wire stripping tool of the present invention is characterized in that the handle portion can be positioned such that the center of the insertion hole on the main body portion and the center of the insertion hole on the handle portion coincide.

[0013] According to the above features, the wires inserted through the insertion holes on the main body and the handle can be kept straight and less prone to bending while the main body is rotated during operation. This prevents the center of the wires from shifting, allowing for clean removal of the insulation layer.

[0014] Furthermore, in order to solve the above problems, the wire stripping tool of the present invention is characterized in that the handle portion and the wire guide portion can be arranged such that the center of the guide-side insertion hole of the wire guide portion and the center of the handle-side insertion hole of the handle portion coincide.

[0015] According to the above features, the wires inserted through the guide-side insertion hole and the handle-side insertion hole can be kept straight and less prone to bending while the main body is rotated during operation. This prevents the center of the wires from shifting, allowing for clean removal of the insulation layer. [Effects of the Invention]

[0016] The wire stripping tool of the present invention can reliably strip each coating layer, even if the wire is composed of multiple coating layers of different types. [Brief explanation of the drawing]

[0017] [Figure 1] Figure 1(a) is a perspective view of the handle portion 100 of the wire stripping tool 900 of the present invention, Figure 1(b) is a side view of the handle portion 100, and Figure 1(c) is a rear view of the handle portion 100. [Figure 2] Figure 2(a) is a perspective view of the main body 200 from the left and front sides, Figure 2(b) is a perspective view of the main body 200 from the right and front sides, and Figure 2(c) is a perspective view of the main body 200 from the right and rear sides. [Figure 3] Figure 3(a) is a right side view of the main body 200, Figure 3(b) is a bottom view of the main body 200, Figure 3(c) is a front view of the main body 200, and Figure 3(d) is a rear view of the main body 200. [Figure 4]Fig. 4(a) is a perspective view of the wire guiding part 300 as seen from the front side, and Fig. 4(b) is a perspective view of the wire guiding part 300 as seen from the back side. [Figure 5] Fig. 5(a) is a front view of the wire guiding part 300, and Fig. 5(b) is a back view of the wire guiding part 300. [Figure 6] Fig. 6(a) is a perspective view of the wire coating stripping tool 900, and Fig. 6(b) is a side view of the wire coating stripping tool 900. [Figure 7] Fig. 7(a) is a front view of the wire coating stripping tool 900, and Fig. 7(b) is a back view of the wire coating stripping tool 900. [Figure 8] Fig. 8(a) is a perspective view of the wire coating stripping tool 900, and Fig. 8(b) is a side view of the wire coating stripping tool 900. [Figure 9] Fig. 9(a) is a front view of the wire coating stripping tool 900, and Fig. 9(b) is a back view of the wire coating stripping tool 900. [Figure 10] Fig. 10(a) is a perspective view of the wire coating stripping tool 900, and Fig. 10(b) is a side view of the wire coating stripping tool 900. [Figure 11] Fig. 11(a) is a front view of the wire coating stripping tool 900, and Fig. 11(b) is a back view of the wire coating stripping tool 900.

Embodiments for Carrying out the Invention

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the shapes of the respective figures referred to in the following description are conceptual diagrams or schematic diagrams for explaining suitable shape dimensions, and the dimensional ratios, etc. do not necessarily match the actual dimensional ratios. That is, the present invention is not limited to the dimensional ratios in the drawings.

[0019] First, Fig. 1 shows the handle part 100 of the wire coating stripping tool 900 of the present invention. Note that Fig. 1(a) is a perspective view of the handle part 100, Fig. 1(b) is a side view of the handle part 100, and Fig. 1(c) is a back view of the handle part 100.

[0020] The handle portion 100 is entirely made of metal or synthetic resin and comprises a main body portion 110, a shaft portion 120, and a gripping portion 130. The main body portion 110 has a circular handle-side insertion hole 140 on the inside and a locking projection 150 on the outside. The handle-side insertion hole 140 is linearly penetrating from front to back and is configured to allow the insertion of an electric wire, which will be described later. The shaft portion 120 connects the main body portion 110 and the gripping portion 130 and is configured to be inserted into a fixing hole in the main body portion, which will be described later. Furthermore, the shaft portion 120 has a fixing portion 121 that can slide up and down along the axial direction, which can fix the shaft portion 120 so that it does not come out of the state in which it is inserted into the fixing hole in the main body portion, which will be described later. The gripping portion 130 is the part that is grasped and operated by the worker by hand, as will be described later.

[0021] Next, Figures 2 and 3 show the main body 200 of the wire stripping tool 900 of the present invention. Figure 2(a) is a perspective view of the main body 200 from the left and front sides, Figure 2(b) is a perspective view of the main body 200 from the right and front sides, Figure 2(c) is a perspective view of the main body 200 from the right and rear sides, Figure 3(a) is a right side view of the main body 200, Figure 3(b) is a bottom view of the main body 200, Figure 3(c) is a front view of the main body 200, and Figure 3(d) is a rear view of the main body 200.

[0022] The main body 200 is cylindrical in shape and made entirely of metal or synthetic resin, and is equipped with a main body-side insertion hole 240 that runs straight through from front to back, through which an electric wire can be inserted. A discharge window 241 that penetrates from the inside to the outside is provided on a part of the inner surface of the main body-side insertion hole 240, and the first insertion blade 210 is positioned in the discharge window 241. The tip 211 of the first insertion blade 210 protrudes from the inner surface of the main body-side insertion hole 240, and as will be described later, it can cut into the insulation layer of the electric wire and discharge the stripped insulation to the outside through the discharge window 241.

[0023] Furthermore, a second cutting blade 220 is provided at a position that protrudes into the insertion hole 240 on the main body side. The tip 221 of the second cutting blade 220 protrudes from the inner surface of the insertion hole 240 on the main body side and can make a cut in the insulation layer of the electric wire, as will be described later. In addition, the second cutting blade 220 can slide up and down along the shaft 223 by rotating the shaft portion 222. Therefore, by rotating the shaft portion 222, the tip 221 can move closer to or further away from the center O1 of the insertion hole 240 on the main body side. Thus, depending on the thickness of the insulation layer of the electric wire, the tip 221 of the second cutting blade 220 can be moved closer to or further away from the electric wire so as to contact the insulation layer.

[0024] The tip 221 of the second cutting blade 220 is configured to move closer to or further away from the center O1 of the insertion hole 240 on the main body side, but is not limited to this, and the tip 221 of the second cutting blade 220 may be fixed so that it cannot slide up or down. Also, the shaft portion 222 of the second cutting blade 220 is configured to slide up or down by rotating it, but is not limited to this, and may be configured to slide up or down by pushing the shaft portion 222 upward or pulling it downward, or any other configuration.

[0025] Furthermore, a mounting opening 250 is provided on the rear side of the insertion hole 240 on the main body side. The main body portion 110 of the handle portion 100 can be inserted into this mounting opening 250 and attached. The mounting opening 250 also has a first fixing hole 251 and a second fixing hole 252 that penetrate from the inside to the outside, and the first fixing hole 251 and the second fixing hole 252 are configured to allow the shaft portion 120 of the handle portion 100 to be inserted and fixed. The mounting opening 250 also has a groove-shaped first locking portion 253 and a second locking portion 254, and the first locking portion 253 and the second locking portion 254 are configured to lock the locking projection 150 of the handle portion 100.

[0026] Next, Figures 4 and 5 show the wire guide section 300 of the wire stripping tool 900 of the present invention. Figure 4(a) is a perspective view of the wire guide section 300 from the front, Figure 4(b) is a perspective view of the wire guide section 300 from the rear, Figure 5(a) is a front view of the wire guide section 300, and Figure 5(b) is a rear view of the wire guide section 300.

[0027] The wire guide section 300 is cylindrical in shape, made entirely of metal or synthetic resin, and comprises a flat front end 310 and a substantially cylindrical insertion section 320 extending rearward from the front end 310. The insertion section 320 is configured to be inserted into the main body side insertion hole 240 of the main body section 200. The insertion section 320 also includes a guide-side insertion hole 340 that runs linearly through from front to back, through which a wire can be inserted. The center O2 of the guide-side insertion hole 340 is eccentric with respect to the center O3 of the insertion section 320.

[0028] Furthermore, a portion of the guide-side insertion hole 340 is an opening 341 that opens to the side, and as will be described later, a portion of the electric wire inserted through the guide-side insertion hole 340 is exposed through the opening 341, so that the first cutting blade 210 and the second cutting blade 220 can contact the coating layer. In addition, the outer surface of the guide-side insertion hole 340 opposite to the opening 341 is a stepped recess 345, which, as will be described later, prevents the first cutting blade 210 and the second cutting blade 220, which are not used to cut the coating layer, from interfering with the insertion portion 320.

[0029] Next, with reference to Figures 6 to 11, a manner in which each insulation layer of the electric wire W0 is cut and removed using the electric wire stripping tool 900 of the present invention will be described. Figure 6(a) is a perspective view of the electric wire stripping tool 900, Figure 6(b) is a side view of the electric wire stripping tool 900, Figure 7(a) is a front view of the electric wire stripping tool 900, and Figure 7(b) is a rear view of the electric wire stripping tool 900.

[0030] As shown in Figure 6, the electric wire W0 has multiple coating layers and is composed of a core wire W4 consisting of an outermost first coating layer W1, a semiconducting second coating layer W2 covered and protected by the first coating layer W1, an insulating third coating layer W3 covered and protected by the second coating layer W2, and a conductor covered and protected by the third coating layer W3. Note that the electric wire W0 is not limited to the above configuration and may have any configuration as long as it has multiple coating layers.

[0031] As shown in Figures 6 and 7, when first cutting and stripping the first insulation layer W1 of the electric wire W0, the electric wire guide section 300 is not attached to the main body 200 of the electric wire stripping tool 900, but the handle section 100 is attached. Specifically, the main body 110 of the handle section 100 is placed in the mounting opening 250 located at the other end of the main body 200, the shaft 120 of the handle section 100 is inserted through the first fixing hole 251 of the main body 200, and the locking projection 150 of the handle section 100 is locked to the first locking part 253 of the main body 200, thereby attaching the handle section 100 to the main body 200. Then, as shown in Figure 7(b), the handle-side insertion hole 140 of the handle section 100 is positioned at a predetermined distance from the first cutting blade 210 of the main body 200. In other words, the handle portion 100 can be positioned at a first handle position N1, where the handle-side insertion hole 140 is a predetermined distance from the first cutting blade 210 of the main body portion 200. This predetermined distance is the distance at which the first cutting blade 210 can contact the first coating layer W1 of the electric wire W0 inserted through the main body-side insertion hole 240 and the handle-side insertion hole 140, while the first cutting blade 210 is away from the center O4 of the handle-side insertion hole 140, and can cut the first coating layer W1.

[0032] Then, as shown in Figure 6, the worker inserts the electric wire W0 into the main body insertion hole 240 from one end of the main body 200, and inserts the electric wire W0 up to the handle side insertion hole 140 of the handle 100. In this state, the worker holds the handle 100 in their hand and rotates it around the electric wire W0, causing the first cutting blade 210 of the main body 200 to cut the first coating layer W1 of the electric wire W0 in a spiral pattern. The cut first coating layer W1 then peels off from the electric wire W0 and is discharged to the outside through the discharge window 241.

[0033] Thus, in the wire stripping tool 900 of the present invention, the wire W0 is supported by being inserted through the main body side insertion hole 240 of the main body 200 and the handle side insertion hole 140 of the handle 100, and the first coating layer W1 of the wire W0 can be stably stripped off by the first insertion blade 210.

[0034] Furthermore, as shown in Figure 7(b), the handle portion 100 can be positioned at a first handle position N1, where the handle-side insertion hole 140 is located at a predetermined distance from the first insertion blade 210 of the main body portion 200. This allows the first insertion blade 210 to make optimal contact with the first coating layer W1 of the electric wire W0 inserted through the handle-side insertion hole 140, and to cleanly strip the first coating layer W1.

[0035] Furthermore, the center O1 of the main body-side insertion hole 240 of the main body 200 and the center O4 of the handle-side insertion hole 140 of the handle 100 coincide. In other words, the main body-side insertion hole 240 of the main body 200 and the handle-side insertion hole 140 of the handle 100 are arranged in the same straight line so that their centers coincide. Therefore, when the main body 200 is rotated during operation, the electric wire W0 inserted through the main body-side insertion hole 240 and the handle-side insertion hole 140 is less likely to bend and remains in a straight line, so the center of the electric wire W0 is less likely to shift, and the first coating layer W1 can be cleanly cut.

[0036] Next, with reference to Figures 8 and 9, a method for cutting and removing the second insulation layer W2 of the electric wire W0 using the electric wire stripping tool 900 of the present invention will be described. Figure 8(a) is a perspective view of the electric wire stripping tool 900, Figure 8(b) is a side view of the electric wire stripping tool 900, Figure 9(a) is a front view of the electric wire stripping tool 900, and Figure 9(b) is a rear view of the electric wire stripping tool 900.

[0037] As shown in Figure 8, the electric wire W0 has its first coating layer W1 removed, exposing the second coating layer W2 to the outside. The second coating layer W2 is made of a different material than the first coating layer W1, and it is optimal to remove the second coating layer W2 with the second cutting blade 220 rather than the first cutting blade 210 that removed the first coating layer W1. Therefore, in the electric wire stripping tool 900, the handle part 100 is not attached to the main body part 200 of the electric wire stripping tool 900, but the electric wire guide part 300 is attached, in order to remove the second coating layer W2 of the electric wire W0 with the second cutting blade 220. While the handle portion 100 may be attached to the main body portion 200, it is preferable to remove the handle portion 100 from the main body portion 200 if the guide-side insertion hole 340 of the wire guide portion 300 and the handle-side insertion hole 140 of the handle portion 100 are not aligned in a straight line, causing the wire W0 to bend, or if removing the handle portion 100 makes it easier to cut the second coating layer W2 of the wire W0 with the second cutting blade 220.

[0038] Specifically, the wire guide section 300 is attached to the main body section 200 by inserting the insertion portion 320 of the wire guide section 300 into the main body side insertion hole 240 from one end of the main body section 200. The center O3 of the insertion portion 320 coincides with the center O1 of the main body side insertion hole 240, and the insertion portion 320 has a shape that corresponds to the main body side insertion hole 240, so the insertion portion 320 is firmly inserted into the main body side insertion hole 240 without shifting. On the other hand, the center O2 of the guide side insertion hole 340 is offset and eccentric with respect to the center O3 of the insertion portion 320 and the center O1 of the main body side insertion hole 240, so the guide side insertion hole 340 is positioned closer to the second cutting blade 220. In other words, the wire guide section 300 can be positioned at the second guide position P2, which brings the guide side insertion hole 340 closer to the second cutting blade 220. At this second guide position P2, the tip 221 of the second cutting blade 220 faces the opening 341 of the guide-side insertion hole 340. The first cutting blade 210 is positioned in the recess 345 on the outside of the guide-side insertion hole 340, so the first cutting blade 210 does not come into contact with the insertion part 320 or the electric wire W0.

[0039] Then, as shown in Figure 8, the worker inserts the electric wire W0 into the guide-side insertion hole 340 of the electric wire guide section 300 from one end of the main body 200. In this state, the worker rotates the main body 200 around the electric wire W0 by holding it with their hand, causing the tip 221 of the second cutting blade 220 of the main body 200 to spirally cut into the second coating layer W2 of the electric wire W0 that has been inserted into the guide-side insertion hole 340. After the cuts have been made, the second coating layer W2 and other materials are then manually peeled off using tools such as pliers.

[0040] Thus, in the wire stripping tool 900 of the present invention, the wire guide section 300 allows the second coating layer W2 of the wire W0 to be stably stripped by the second cutting blade 220.

[0041] Next, with reference to Figures 10 and 11, a manner in which the third insulation layer W3 of the electric wire W0 is cut and removed using the electric wire stripping tool 900 of the present invention will be described. Figure 10(a) is a perspective view of the electric wire stripping tool 900, Figure 10(b) is a side view of the electric wire stripping tool 900, Figure 11(a) is a front view of the electric wire stripping tool 900, and Figure 11(b) is a rear view of the electric wire stripping tool 900.

[0042] As shown in Figure 10, the electric wire W0 has its second coating layer W2 removed, exposing the third coating layer W3 to the outside. The third coating layer W3 is made of a different material than the second coating layer W2, and it is optimal to remove the third coating layer W3 with the first cutting blade 210 rather than the second cutting blade 220 that removed the second coating layer W2. Therefore, in the electric wire stripping tool 900, the handle part 100 and the electric wire guide part 300 are attached to the main body part 200 of the electric wire stripping tool 900 in order to remove the third coating layer W3 of the electric wire W0 with the first cutting blade 210.

[0043] The wire W0 shown in Figure 10 has its first and second coating layers W1 and W2 stripped off, so its outer diameter is smaller than the wire W0 shown in Figure 6. Therefore, even if the wire W0 is inserted directly into the main body side insertion hole 240 of the main body 200, the first insertion blade 210 of the main body 200 does not easily come into contact with the third coating layer W3 of the wire W0, and the third coating layer W3 cannot be reliably stripped off.

[0044] Therefore, the insertion portion 320 of the wire guide section 300 is inserted into the main body side insertion hole 240 from one end of the main body section 200, thereby attaching the wire guide section 300 to the main body section 200. As shown in Figures 10 and 11, the wire guide section 300 is attached to the main body section 200 in a state where the wire guide section 300 shown in Figure 9 is inverted vertically. As a result, the guide side insertion hole 340 of the wire guide section 300 is positioned close to the first insertion blade 210, and the wire W0 inserted through the guide side insertion hole 340 can come into contact with the first insertion blade 210. In other words, the wire guide section 300 can be positioned at the first guide position P1, where the guide side insertion hole 340 is close to the first insertion blade 210.

[0045] Thus, the wire guide section 300 is configured to be switchable between the first guide position P1 and the second guide position P2 by changing its mounting orientation to the main body 200 (for example, by inverting it upside down). In particular, since the center O2 of the guide-side insertion hole 340 of the wire guide section 300 is offset and eccentric with respect to the center O3 of the insertion section 320 and the center O1 of the main body-side insertion hole 240, it is possible to easily switch between the first guide position P1 and the second guide position P2 simply by inverting the mounting orientation to the main body 200 upside down. In this first guide position P1, the first cutting blade 210 faces the opening 341 of the guide-side insertion hole 340. Also, since the tip 221 of the second cutting blade 220 is positioned in the recess 345 on the outside of the guide-side insertion hole 340, the tip 221 does not come into contact with the insertion section 320 or the wire W0.

[0046] Furthermore, the main body portion 110 of the handle portion 100 is positioned in the mounting opening 250 from the other end of the main body portion 200, the shaft portion 120 of the handle portion 100 is inserted through the second fixing hole 252 of the main body portion 200, and the locking projection 150 of the handle portion 100 is locked to the second locking portion 254 of the main body portion 200, thereby attaching the handle portion 100 to the main body portion 200. As a result, as shown in Figure 11(b), the handle-side insertion hole 140 of the handle portion 100 is in close proximity to the first cutting edge 210 of the main body portion 200. In other words, the handle portion 100 can be positioned at the second handle position N2, in which the handle-side insertion hole 140 is in close proximity to the first cutting edge 210 of the main body portion 200.

[0047] Thus, the handle portion 100 is configured to be switchable between the first handle position N1 and the second handle position N2 by changing its mounting position relative to the main body portion 200 (as shown in Figures 7 and 11, the mounting position of the handle portion 100 is changed).

[0048] Then, as shown in Figure 10, the worker inserts the electric wire W0 into the guide-side insertion hole 340 from one end of the main body 200, and inserts the electric wire W0 up to the handle-side insertion hole 140 of the handle 100. Since the guide-side insertion hole 340 and the handle-side insertion hole 140 are positioned close to the first cutting blade 210, when the worker holds the handle 100 by hand and rotates it around the electric wire W0, the first cutting blade 210 of the main body 200 comes into contact with the third coating layer W3 of the electric wire W0 and cuts it in a spiral pattern. The cut third coating layer W3 then peels off from the electric wire W0 and is discharged to the outside through the discharge window 241.

[0049] Thus, in the wire stripping tool 900 of the present invention, the wire W0 is supported by inserting it through the guide-side insertion hole 340 of the wire guide section 300 and the handle-side insertion hole 140 of the handle section 100, and the third coating layer W3 of the wire W0 can be stably stripped off by the first insertion blade 210.

[0050] Furthermore, as shown in Figure 11(b), the handle portion 100 can be positioned at a second handle position N2 where the handle-side insertion hole 140 is close to the first insertion blade 210 of the main body portion 200. This allows the first insertion blade 210 to make optimal contact with the third coating layer W3 of the electric wire W0, which has a reduced outer diameter and is inserted through the handle-side insertion hole 140, and to cleanly strip the third coating layer W3.

[0051] Furthermore, the center O2 of the guide-side insertion hole 340 of the wire guide section 300 and the center O4 of the handle-side insertion hole 140 of the handle section 100 coincide. In other words, the guide-side insertion hole 340 of the wire guide section 300 and the handle-side insertion hole 140 of the handle section 100 are arranged in the same straight line so that their centers coincide. Therefore, when the main body section 200 is rotated during work, the wire W0 inserted through the guide-side insertion hole 340 and the handle-side insertion hole 140 is less likely to bend and remains in a straight line, so the center of the wire W0 is less likely to shift, and the third coating layer W3 can be cleanly cut.

[0052] Furthermore, the wire stripping tool of the present invention is not limited to the above-described embodiments, and various modifications and combinations are possible within the scope of the claims and embodiments, and these modifications and combinations are also included within the scope of the patent rights. [Explanation of symbols]

[0053] 100 Handle section 140 Handle side insertion hole 200 Main body 210 First cutting blade 220 Second cutting blade 240 Insertion hole on the main body side 300 Wire guidance section 340 Guide side insertion hole 900 Wire sheath stripping tool P1 First guidance position P2 Second guidance position W0 Electric wire

Claims

1. It is a wire stripping tool, It comprises a wire guide section, a main body section, and a handle section. The main body comprises a main body insertion hole for inserting an electric wire, a first cutting blade protruding from the inner surface of the main body insertion hole, and a second cutting blade. The wire guide section is equipped with a guide-side insertion hole through which the wire is inserted, and can be positioned on one end side of the main body. The handle portion is provided with a handle-side insertion hole for inserting the electric wire, and can be positioned on the other end side of the main body portion. The wire stripping tool is characterized in that the wire guide section is configured to be switchable between a first guide position, where the guide-side insertion hole is brought close to the first cutting blade side of the main body, and a second guide position, where the guide-side insertion hole is brought close to the second cutting blade side of the main body.

2. The wire stripping tool according to claim 1, characterized in that the handle portion is configured to be switchable between a first handle position in which the handle-side insertion hole is positioned at a predetermined distance from the first-cutting blade side of the main body portion, and a second handle position in which the handle-side insertion hole is positioned closer to the first-cutting blade side of the main body portion.

3. The wire stripping tool according to claim 1 or 2, characterized in that the second cutting blade is configured to move closer to or further away from the center of the insertion hole on the main body side.

4. The wire stripping tool according to claim 1 or 2, characterized in that the center of the guide-side insertion hole of the wire guide portion is eccentric with respect to the center of the main body-side insertion hole of the main body portion.

5. The wire stripping tool according to claim 1 or 2, characterized in that the handle portion can be positioned such that the center of the insertion hole on the main body portion and the center of the insertion hole on the handle portion coincide.

6. The wire stripping tool according to claim 1 or 2, characterized in that the handle portion and the wire guide portion can be positioned such that the center of the guide-side insertion hole of the wire guide portion and the center of the handle-side insertion hole of the handle portion coincide.