JPH049990Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to a sheath stripping tool for stripping the sheath of a sheathing body such as a cladding tube body. Regarding the coating stripping tool for removing the coating of a coated flexible pipe in which a synthetic resin coating is applied to a corrugated corrugated metal pipe, in more detail, it is possible to remove the coating by effectively utilizing the cover body designed for safety while ensuring safety. The present invention relates to a technique that facilitates and reliably performs stripping work in the circular outer circumferential direction and the axial direction of a covering body such as a tube.

[Prior Art] A conventional example of a coating stripping tool A' is as shown in Japanese Utility Model Publication No. 12507/1983 shown in FIG. was installed so that the amount of advance and retraction can be adjusted freely, so when removing the coating b' of the sheathing tube body 5' with the coating stripping tool A', it is necessary to attach a The tip of the guide protrusion 7' is inserted under the cover b' and pulled in the direction of the arrow to cut with the cutting blade 2'. There is a problem that it may hurt the hand on the side,
Furthermore, in the conventional example described above, there was a problem in that the angle between the cutting blade 2' and the sheathing tube body 5' was not constant, making it difficult to cut the sheath b'. By the way, the cladding body 5'
In the case of Japanese Utility Model Publication No. 52-33989 shown in FIG. 9, which stably cuts the sheath b' of A technique has been disclosed in which the angle between the cutting blade 2' and the sheathing tube body 5' is made substantially constant by providing a b', thereby stably cutting the sheath b'. In this case, the cladding body 5'
Although the sheath b' can be stably cut in the circumferential direction, there is a problem in that the sheath b' cannot be stably cut in the axial direction of the sheath body 5'. The cutting edge 2' was exposed, making it unsafe.

[Purpose of the invention] The present invention was made in view of these problems, and its purpose is to effectively utilize the cover body for safety while ensuring safety. It is an object of the present invention to provide a sheath stripping tool for a sheathing body such as a sheathing tube body, which can easily, stably and reliably perform stripping work in the circular outer circumferential direction and the axial direction of the sheathing body such as a tube body.

[Disclosure of the invention] The sheath stripping tool for a sheathing body such as a sheathing tube body of the present invention has a cutting blade 2 protrudingly provided at the tip of a tool body 1, and a spring-biased cover body 3 that is movable forward and backward. It is a sheath stripping tool for a sheathing body such as a sheathing tube body that is attached to cover the cutting blade 2 when not in use, and the cutting blade 2 is attached to the tip of the cover body 3 in the axial direction of the sheathing body 5. A covering support part 4 is protrudingly provided to abut and support the covering 5 when the cutting blade 2 is oriented substantially parallel to the axial direction of the covering 5. It is characterized by forming a recess 6 in the covering support part 4 into which a part of the covering 5 in the circumferential direction can be inserted, and by configuring it in this way, the above object is achieved. It is something. In other words, by attaching the spring-biased cover body 3 so as to be able to move forward and backward to cover the cutting blade 2 when not in use, the cutting blade 2 can be moved as long as no external force is applied to the cover body 3. Therefore, even if the cutting blade 2 unexpectedly comes off from the covering b while the cutting blade 2 is cutting the covering b, the cover body 3 immediately covers the cutting blade 2 by the spring biasing force. Although the purpose is to ensure safety, there is a covering support part that abuts and supports the covering 5 when the cutting blade 2 is oriented in a direction substantially perpendicular to the axial direction of the covering 5 at the tip of the covering 3. 4, the angle between the cutting blade 2 and the sheath 5 can be kept approximately constant by supporting the sheath support 4 in contact with the sheath 5 such as a sheath tube. The cutting blade 2 can stably cut the covering 5 in the circumferential direction, and in particular, in the present invention,
A recess 6 into which a circumferential portion of the sheath 5, such as a sheath tube body, can fit when the cutting blade 2 is oriented substantially parallel to the axial direction of the sheath 5 is formed in the sheath support 4.
By forming a part of the covering 5 in the circumferential direction into the recess 6, the cutting blade 2 can be stably moved in the axial direction of the covering 5, and the cutting edge 2 can be stably moved in the axial direction of the covering 5. Cutting in the axial direction can also be easily and reliably performed.

Embodiments of the present invention will be described in detail below based on the drawings.

The tool body 1 is formed into an elongated rectangular parallelepiped shape, and is designed to be able to be held in the palm of the hand. The tip of the tool body 1 is formed as a bifurcated portion 14 having a split groove 8, and a hollow portion 9 is bored at the back of the split groove 8 in communication with the split groove 8. The cutting blade 2 is formed by cutting the tip of a plate-shaped base body 10, and the base body 10 has a circular attachment hole 11 formed therethrough. The cover body 3 is formed to have a U-shaped cross section, and a long hole 13 is formed through the U-shaped central piece 12.

Then, the base 10 of the cutting blade 2 and the center piece 12 of the cover body 3 are inserted into the split groove 8 of the tool body 1, and the through hole 16 of one piece 14a of the bifurcated part 14 of the tool body 1
a. Screw the screw 15 inserted through the elongated hole 13 of the cover body 3 and the mounting hole 11 of the base 10 of the cutting blade 2 into the screw hole 16b of the other piece 14b of the bifurcated portion 14, and then insert the screw 15 into the split groove of the bifurcated portion 14. At 8, the cutting blade 2 is fixed, and the cover body 3 is urged to protrude so as to cover the cutting blade 2 by a coil spring 17 inserted into the cavity 8.

In this way, the spring-biased cover body 3 is attached to the tool body 1 so as to be able to move forward and backward, so that it covers the cutting blade 2 when not in use, so that the cutting blade 2 will not move unless an external force is applied to the cover body 3. It is covered with a cover body 3, and even if the cutting blade 2 unexpectedly comes off from the coating b while cutting the coating b with the cutting blade 2, the cover body 3 immediately covers the cutting blade 2 by the spring biasing force. It is designed for safety. In such a case, the amount of movement of the cover body 3 is set by the length of the elongated hole 13 formed in the cover body 3,
In the embodiment, when the cover body 3 is in its maximum protrusion state, the cover body 3 having a U-shaped cross section covers a part of the blade portion 2a of the cutting blade 2 as shown in the side view in FIG.
The guide protrusion 7 formed at the tip of the cover b is set to be exposed, so that the guide protrusion 7 is not disengaged from the hooked state in which it bites into the cover b when the cover body 3 is protruded.

An operating protrusion 18 is formed on the cover body 3.
When the tool body 1 is gripped in the palm of the hand, the operating protrusion 18
By pulling with the thumb, the blade portion 2a of the cutting blade 2 can be exposed to a large extent. Further, the cover body 3 has a cutting blade 2 on the guide protrusion 7 side of the cutting blade 2.
A plate-shaped covering support portion 4 is provided in a protruding manner to abut and support the covering 5 when the cover 5 is oriented in a direction substantially perpendicular to the axial direction of the covering 5.

In this way, the cover body support part 4 is protrudingly provided at the tip of the cover body 3 to abut and support the cover body 5 when the cutting blade 2 is oriented in a direction substantially perpendicular to the axial direction of the cover body 5. Therefore, as shown in FIG. 1, the sheathing support part 4 is supported in contact with the sheathing body 5 such as a sheathing tube body, and the angle between the cutting blade 2 and the sheathing body 5 is kept approximately constant. The cutting blade 2 is designed to stably cut the covering 5 in its circumferential direction.

In particular, in the present invention, when the tool body 1 is rotated approximately 90 degrees from the cutting state in the circumferential direction described above and the cutting blade 2 is oriented approximately parallel to the axial direction of the sheathing body 5, the sheathing tube body A recess 6 into which a portion of the covering 5 in the circumferential direction can be inserted is formed in the covering support 4.

In this way, a recess 6 is formed in the sheath support 4 into which a portion of the sheath 5 in the circumferential direction, such as a sheath tube body, can enter when the cutting blade 2 is oriented substantially parallel to the axial direction of the sheath 5. As shown in FIG. 4, by forming a part of the covering 5 in the circumferential direction into the recess 6, the cutting blade 2 is stably moved in the axial direction of the covering 5, and the covering 5 is Cutting in the axial direction can also be easily and reliably performed.

According to such a configuration, as shown by the imaginary line in FIG.
into the sheath b at a certain length from the end of the sheath tube c, and then the cover body 3 is projected by the spring force of the coil spring 17, and the sheath support extending from the cover body 3 is The part 4 is brought into contact with the lower surface side of the cladding tube body b [see Fig. 6a], and the tool body 1 is rotated in the circumferential direction of the cladding tube body b to cut the cladding b in the circumferential direction. After cutting in the circumferential direction, the tool body 1 is rotated approximately 90 degrees,
A part of the outer periphery of the cladding body c is inserted into the recess 6 of the cladding support part 4 [see Fig. 6b], and the guiding function of the recess 6 allows the cutting edge to be cut in the axial direction of the cladding body c. In step 2, the coating b is stably cut [see FIG. 6C], and a certain length of the coating b is peeled off from the end of the coating tube c and cut off.

[Effects of the invention] In summary, in the present invention, the spring-loaded cover body is attached so that it can move forward and backward, and covers the cutting blade when not in use. is covered with a cover body, so even if the cutting blade accidentally comes off the coating while cutting the coating, the cover body immediately covers the cutting blade with the spring biasing force to ensure safety. Although it is a thing,
A covering support part is provided at the tip of the cover body so that it comes into contact with and supports the covering body when the cutting blade is oriented in a direction substantially perpendicular to the axial direction of the covering body. By supporting the blade in contact with a sheathing body such as a sheathing tube, the angle between the cutting blade and the sheathing body can be kept approximately constant, allowing the cutting blade to stably cut the sheathing body in the circumferential direction. In particular, in the present invention, when the cutting blade is oriented approximately parallel to the axial direction of the sheath, a recess into which a portion of the sheath in the circumferential direction, such as a sheath tube body, can be inserted is provided as a sheath support. By inserting a part of the circumferential direction of the sheath into the recess, the cutting edge can be stably moved in the axial direction of the sheath, allowing cutting in the axial direction of the sheath. It also has the advantage of being easy and reliable.

[Brief explanation of drawings]

Figure 1 is a side view of one embodiment of the present invention, Figure 2 is a plan view of the same, Figure 3 is a partial front view of the same, and Figure 4 is a partial front view of the same.
The figure is a partially cutaway front view of the same as above, FIG. 5 is a sectional view of the same as above, FIGS. 6 a, b, and c are perspective views of the same as above in use, FIG. 9 is a perspective view of another conventional example, in which 1 is a tool body, 2 is a cutting blade, 3 is a cover body, 4 is a covering support part, 5 is a covering body, 6 is a recessed portion.

Claims (1)

[Scope of utility model registration request] A cutting blade is provided protruding from the tip of the tool body, and a spring-biased cover body is attached so that it can move forward and backward, so that the cutting blade is covered when not in use.For stripping of covering bodies such as cladding tube bodies. The tool includes a covering support part that protrudes from the tip of the cover body to abut and support the covering when the cutting blade is oriented in a direction substantially perpendicular to the axial direction of the covering. A sheathing body such as a sheathing body formed by forming a recess in the sheathing support portion into which a portion of the sheathing body such as the sheathing body in the circumferential direction can enter when the sheathing body is oriented substantially parallel to the axial direction of the sheathing body. coating stripping tool.