JPS5812507Y2 - Cable sheath stripping tool - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tool for safely and easily stripping off the jacket of cables used in communication equipment, etc.

2. Description of the Related Art As is well known, in the installation work of cables used in communication equipment, etc., it is necessary to strip off the outer sheath of the cables.

In this operation, the outer sheath is usually cut across at the final point of the cable to be stripped, and the outer sheath from that point to the cut end of the cable is cut vertically and stripped.

By the way, conventional methods for stripping the cable sheath of this type include, for example, a method using a cable sheath stripping tool shown in FIG. 1, and a method using a thread built into the cable for longitudinal cutting of the cable sheath. ing.

Among these methods, the method of using threads built into the cable is difficult to apply when the cable jacket is thick.

Therefore, this type of work is often carried out using the tools shown in FIG. 1 for both transverse and longitudinal cutting of the cable jacket.

The cable sheath stripping tool shown in Fig. 1 has a tool body 1.
A blade 1a is formed on one side edge of the blade, and a blade 1C is formed on the inner surface of a hook-shaped projection 1b formed at the tip of the other side edge.

This tool grips the base of the tool body and uses the blade 1a to cross-cut the cable sheath, and then uses the blade 1C formed on the hooked protrusion 1b to vertically cut the cable sheath to strip the sheath. It is something to do.

By the way, when using the above-mentioned tool to cut the cable jacket vertically, for example, it is safe to place the hand holding the cable on the opposite side of the direction of movement of the tool.
In such a working method, it is difficult to perform the work, and especially when using an unfamiliar work tool, the cable is likely to be held in the direction of movement of the tool.

However, in this working method, there is a problem that if the tool comes off the cable, the hand held by the tool tends to be damaged by the tool, which is highly dangerous.

Furthermore, according to the above tool, when performing both horizontal and vertical cutting of the cable sheath, it is necessary to consider safety and adjust the degree of penetration of the tool blade into the cable in order to avoid damaging the core wire. However, it has the disadvantage of requiring skill in the work.

Furthermore, the above-mentioned tool has a blade 1 formed on the hook-like projection 1b.
Since the shape of C is curved, it is difficult to sharpen this blade 1C and it is difficult to maintain this blade 1C in a sharp state.

In view of the above circumstances, the present invention was developed to be easier to use, safer, and easier to use than the conventionally used tools for stripping cables used in communication equipment, etc. The present invention provides a cable sheath stripping tool that is easy to remove, in which a blade is formed on the side edge and a guide is formed on the tip, and a cutting depth adjusting member is connected to the ridgeline of the blade and the cutting depth. The adjustment member is fixed so that the dimension between it and the side edge can be changed.

An embodiment of this invention will be described below with reference to FIGS. 2 to 7.

2 to 4 are diagrams showing the structure of a cable sheath stripping tool A according to the present invention.

As shown in these figures, the cable sheath stripping tool A has a handle 11 equipped with a proximal end portion of a blade supporting metal fitting/cutting depth adjusting metal fitting (cutting depth adjusting member) 12, and a blade attached to this metal fitting 12. The body 13 is attached to the blade retaining plate 14, bolts 15°15, butterfly nuts 16, 16, washers 17.17, 18.1
It is fixed using 8.

In this configuration, the metal fitting 12 has a long hole 19 in a band-shaped plate body.
19.

In addition, the blade body 13 has a straight blade 2 on one side edge of the belt-shaped body.
0, a guide 21 is formed at the tip of the main body to project laterally from the blade 20, and holes 22, 22 are further formed in the main body.

In this case, the guide 21 and the protruding direction are set at a predetermined angle θ with respect to the ridgeline of the blade 20, as shown in FIG.

The angle θ is suitably in the range of 90° to 110°, preferably around 98°.

At this time, the tip edge of the blade 13 is cut parallel to the direction in which the guide 21 projects.

Further, the blade stopper plate 14 is formed by forming holes 23, 23 in a band-shaped plate.

As shown in FIGS. 2 and 3, the blade body 13 has a blade stopper plate 14 attached to one side thereof, and the other side is attached to one side of the hardware 12. These members are fixed to the hardware 12 by being tightened through holes 19, 19.22, 22.23, and 23 with bolts 15.15 and butterfly nuts 16.16.

In this state, the tip edge (ridgeline portion) of the blade 20 is
It protrudes from one side edge of 012 by a predetermined dimension l.

This dimension l can be adjusted by loosening the bolt 15.15 and the butterfly nut 16.16 and moving the blade body 13 and the blade stopper plate 14.

Next, the cable sheath stripping tool A consisting of the above structure is
Explain how to use.

5 to 7 are diagrams showing the state in which the cable jacket is stripped off using tool A.

In these figures, reference numeral 25 is a cable, 26 is a cable jacket, 27 is a cable core wire, and 28 is a protective cellophane.

First, prior to the work of stripping off the cable sheath, loosen the bolts 15, 15 and the butterfly nuts 16, 16 of this tool A, and adjust the protrusion dimension l of the blade 20 from the metal fitting 12, which is necessary for cutting across the cable sheath.

Then, the user grasps the handle 11 and cuts across the jacket 26 of the cable 25 as shown in FIG.

In this cross-cutting work of the cable jacket 26, the metal fitting 1
One side edge of the blade 20 comes into contact with the surface of the jacket 26, so that the blade 20 does not dig into the inside of the cable 25 more than necessary.

Therefore, in this work, the core wire 2 is
There is no risk of damaging 7.

After completing the transverse cutting work of the cable jacket 26, the vertical cutting work of the cable jacket 26 is performed.

In the vertical cutting operation of the cable sheath 26, as shown in FIGS. 6 and 7, the guide 21 of the blade 13 is first inserted under the sheath 26 from the cutting opening of the cable 25.

At this time, the blade body 13 is positioned approximately in the tangential direction of the imaginary circle between the jacket 26 and the core wire 27 with the blade 20 facing in the direction in which the cable 25 extends.

Then, set tool A, guide 21 parallel to cable 25,
Alternatively, the tip pushes up the outer sheath 26 up to the crossing point while keeping it at an angle that pushes it up a little.

In this vertical cutting operation, by setting the angle θ of the protruding direction of the guide 21 with respect to the ridgeline of the blade 20 to an angle within the above-mentioned range, the cutting angle of the blade 20 with respect to the outer sheath 26 can be appropriately obtained. This allows the outer sheath 26 to be easily cut without requiring strong force.

Thus, after performing the above-mentioned horizontal and vertical cuts, the outer cover 26
can be easily torn off.

As explained above, in the cable sheath stripping tool according to the present invention, the cutting depth adjusting member of the blade body, which has a blade formed at the side edge and a guide formed at the tip, is connected to the ridgeline of the blade and the cutting depth. The length adjustment member is fixed so that the dimension between it and the side edge can be changed.

Therefore, this cable sheath stripping tool has the following advantages.

(1) When cutting across the cable jacket, the depth of the cut can be adjusted using the depth adjustment member, so there is no need to adjust the depth.

(2) When cutting the cable sheath vertically, since the blade is provided with a guide, the sheath can be easily cut from the cable cutting end side.

(3) The blade can be replaced and sharpened by removing the bolts and nuts, making it easy to maintain a sharp blade.

(4) The guide at the tip of the blade prevents the tool from coming off the cable during work, and the hand holding the cable can always be placed on the rear side in the direction in which the tool travels, so there is little danger to people.

(5) There are no sharp parts on the blade and the depth of cut is limited, so there is little danger in handling.

[Brief explanation of drawings]

Fig. 1 is a side view of a conventional cable sheath stripping tool, Fig. 2 is a perspective view of a cable sheath stripping tool A according to the present invention, Fig. 3 is a sectional view taken along line III-III of Fig. 2, and Fig. 4 is a side view of a conventional cable sheath stripping tool. The exploded view of the cable sheath stripping tool A and FIGS. 5 to 7 are all explanatory views showing how to use the cable sheath stripping tool A. 12...Blade support hardware front cut depth adjustment hardware (cut depth adjustment member), 13...Blade body, 1
5.15... Bolt, 16.16...
Chonut, 20...Blade, 21...
guide.

Claims (1)

[Scope of utility model registration request] A blade body having a blade formed on the side edge and a guide formed at the tip portion protruding at a predetermined angle with respect to the ridgeline of the blade, and a cut depth adjusting member attached to the blade body. Then, these blade bodies and cutting depth adjustment members are
A cable sheath stripping tool fixed by bolts and nuts so that the dimension between the ridgeline of the blade and the side edge of the cutting depth adjusting member can be varied.