JPH055789Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is a coating layer that is formed by integral extrusion molding on the outer peripheral surface of the insulator provided mainly around the outer periphery of the core wire among the various types of covering layers provided on the outside of the core wire of a coated cable. This relates to a cutter that is used to cut sticky, thin tape without damaging the surface of an insulator.

(Prior technology) In the process of stripping coated cables, each coating layer must be peeled in stages, but the adhesive tape provided on the outer surface of the insulator is The tape is inserted into the outer periphery, moved in a spiral pattern, and then the tape is peeled off from the tape end. This cutter simply has a blade protruding from the surface of the support, but the height of the blade is kept small to avoid damaging the surface of the insulator.

(Problem that the invention aims to solve) However, because the height of the blade is kept low so as not to damage the surface of the insulator, the cut into the tape is shallow, and after making the cut with the cutter, the edge of the tape When this tape is peeled off, the tape around the notch at the end of the tape sticks closely to the insulator, and this combined with the shallowness of the cut makes it extremely difficult to peel off.

(Means for solving the problem) Therefore, this idea is that the cutter guide provided on the cutter body is gate-shaped with regular intervals, and a blade protruding from the tip of this guide is provided in the middle of these guides. Arrange two guides in a straight line in the longitudinal direction and apply them to the outer circumference of the tape, move them to the edge of the tape, and at this end one guide will come off the edge of the tape, increasing the cutting depth of the blade into the tape. This is what I did.

To explain this based on FIG. 1, a part of the cutter main body 3 is inserted into the hole 2 of the cutter holder 1, and it is supported swingably. Two cutter guides 4, 4 are provided in a portal shape at a certain interval, and a blade 5 is provided on the outer end surface 3a of the cutter body 3 between the cutter guides 4, 4. The length of the tape to be cut is approximately the same as the thickness of the tape to be cut.

(Function) Use this cutter to cut the core conductor 7 of the cable 6.
A tape 9 provided on the outer periphery of the insulator 8 provided on the outer periphery of the
To cut to the end of the insulator 8, the second
As shown in the figure, the cutter guides 4, 4 are arranged in a straight line in the longitudinal direction of the tape 9, and the cutter guides 4, 4 are placed against the outer surface of the tape 9, and the blade 5 is inserted into the tape 9. . In this state, blade 5
does not reach the surface of the insulator 8. Then, turn this cutter spirally along the outer circumference of the tape 9 to make a cut in the tape 9 with the blade 5,
When the cutter comes to the end of the tape 9 shown on the right side of FIG. The two points 3a and 3a contact the surface of the tape 9 and are inclined obliquely. As a result, the blade 5 penetrates deeper, penetrates the tape 9, and penetrates into the insulator 8. As the blade 5 approaches the end of the tape 9, the cutter body 3 gradually becomes more inclined, and the blade 5 penetrates deeper. go.

(Example) An example of this invention will be described below with reference to FIG. 3 and subsequent figures.

10 is a cutter holder, 11 is a hollow part inside the cutter holder 10, and this hollow part 11 has a long hole opening 12 bored in one surface of the cutter holder 10. 13 inserts a substrate 13a into this hollow part 10, and inserts the long hole opening 1 from the center of this substrate 13a.
2 is a narrow cutter body which is projected outward from the cutter holder 10, and 14 is a spring spring provided between the lower surface of the substrate 13a in the hollow portion 10 and the inner end surface of the hollow portion 10; 14 constantly pushes the substrate 13a onto the upper surface of the hollow portion 13. 15 are fixed guide bodies provided on both sides of the cutter holder 10, and each of these fixed guide bodies 15
The distal end surface of the cutter body 13 is inclined downward from the outside toward the distal end of the cutter body 13. 16 is a cutter guide with a curved tip provided on both sides of the tip surface 13b of the cutter body 13, and 17 is a blade protruding from the tip surface 13b approximately in the center of these cutter guides 16, 16. 17 protrudes from the tip of the cutter guide 16 as shown in FIG. 4, and its length is slightly smaller than the thickness of the tape to be cut. 18 is a screw body rotatably provided on a support column 19 protruding from the opposite side of the cutter holder 10; 20 is a screw body 1;
A recessed portion 8 is formed on one side, 21 is a central pillar provided in this recessed portion 20, and 22 is a locking pin protruding from both sides of this central pillar.

Further, the cutter 23 of the above embodiment is, for example,
It is attached to an automatic cable layer peeling device as shown in FIGS. 6 and 7, and used for cutting the frist tape during cable layer peeling. That is, in FIGS. 6 and 7, 24 is a slide base, 25 is a cutter device body provided on this slide base 24 so as to be slidable in the longitudinal direction of this slide base 24, and 26 and 27 are the slides. A cable support stand 28 extendably protrudes from both ends of the base 24 in the longitudinal direction, and is a horizontal cylindrical cutter roller rotatably provided within the cutter device main body. The screw body 18 of the cutter is screwed into a screw hole 30 extending from the outer periphery of the cutter 28 to the center hole 29 and inserted. The cutter 23 can be moved forward and backward with respect to the center of the center hole 29 by an appropriate drive device (not shown).

In this case, one end of the cable 31 is inserted into the center hole 29 of the cutter roller 28 in the cutter main body 25 from one end of the cutter main body 25.
5, hold and fix both sides of the cable 31 with the cable supports 26 and 27, move the cutter device main body 25 on the slide base 24 to a predetermined position of the cable 31, and insert it into the center hole 29 of the cutter roller 28. The cutter 23 is projected, the two gate-shaped cutter guides 16, 16 are pressed against the outer periphery of the fristo tape 32 exposed on the outer periphery, and the blade 17 is stabbed into the fristo tape 32. After rotating the cutter roller 28, the cutter device main body 25 is slid while rotating the cutter roller 28. As a result, the blade 17 is attached to the frist tape 32.
The outer periphery of the fristo tape 32 is cut by moving the outer periphery in a spiral manner. And the blade 17 is the frist tape 3
When reaching the second end, as described above, as the blade 17 approaches the end, the blade 17 gradually penetrates deeper into the frist tape 32 and penetrates it to enter the insulator therebelow.

In the above embodiment, the cutter body was swingably supported in the hole of the cutter holder by a spring spring, but instead of this, the cutter main body is pivotably supported in the direction of the two gate-shaped cutter guides. This may allow it to swing freely.

(Effect of the invention) This invention has the above-mentioned structure. When cutting the tape, the blade goes deeper into the tape as the cutter moves toward the end of the tape. When the tape is peeled off from the end, it is very easy to peel off the tape because the end has a deep cut. Moreover, the parts other than the ends of the tape are guided by two gate-shaped cutter guides, so the blade does not penetrate deeply into the tape and does not damage anything on the bottom surface of the tape.

Furthermore, the cutter of this invention can be fitted into an automatic cable layer peeling device and used for cable layer peeling work. In addition, since this invention has the above-mentioned effects, it is extremely convenient to use it for adhesive tape provided on the outer periphery of the insulator on the outer periphery of the core wire of a covered cable, as it can be easily removed even if it is sticky and difficult to remove after cutting. However, it can be used not only as an adhesive tape but also as a tape for an appropriate coated cable.

[Brief explanation of the drawing]

FIG. 1A is a perspective view showing the outline of the cutter body of this invention, FIG. 3 is a perspective view showing an embodiment of this invention, FIG. 4 is a longitudinal sectional view of the same part, FIG. 5 is a plan view of the same, and FIG. FIG. 7 is a sectional view of a cutter roller in the automatic cable layer peeling device. In the figure, 1 is the cutter holder, 2 is the hole, and 3 is the cutter holder.
is the cutter body, 4 is the cutter guide, and 5 is the blade.

Claims (1)

[Scope of utility model registration request] A cutter that inserts a blade into a suitable tape provided on the outside of the core wire of a coated cable and moves the blade along the tape to make a cut in the tape, the cutter body being swingably supported by a cutter holder. On one side of the tape, two cutter guides are protruded in a gate shape at regular intervals in the longitudinal direction of the tape, and between these cutter guides, the thickness of the tape is A tape cutter characterized by having blades that protrude by approximately the same length.