JPH0112489Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a self-supporting cable neck slitting device for stably cutting the neck of a self-supporting cable without requiring any skill.

(Technical background of the invention and its problems) When securing a self-supporting cable during installation work, and also when connecting this cable, it is necessary to separate the cable from the messenger wire of the cable body.

Conventionally, as shown in FIG. 1, in order to separate the main body 1a of a self-supporting cable from the messenger wire part 1b, the blade 2a of the electrical knife 1 is bitten into the neck part 1c of the knife. The handle 2b was moved in the longitudinal direction to cut it.

However, the above method has the disadvantage that if the knife 1 is used incorrectly, the blade 2a may scratch the main body 1a or cause injury to the hand.

(Purpose of the invention) The object of the present invention is to eliminate the above-mentioned drawbacks and provide a self-supporting cable neck cutting device that can stably cut the neck of a self-supporting cable without requiring any skill. do.

(Summary of the invention) The self-supporting cable neck slitting device of the present invention involves passing a tearing line through the neck of a self-supporting cable, moving both ends of the tearing line in the longitudinal direction of the cable, and cutting the neck of the self-supporting cable. It is characterized by being configured to cut into pieces.

(Embodiment of the invention) Hereinafter, an embodiment of the invention will be described with reference to FIGS. 2 and 3.

In FIG. 2, the self-supporting cable necking device comprises a roller 3 and an axial hole 3a of this roller.
A shaft 4 that penetrates through the shaft and supports and rotates the roller via a bearing (not shown), a support 5 that supports both ends of the shaft, and a piano wire or the like that is strung around the support. It is composed of a line 6.

The roller is laterally divided into two parts at the center. Further, the shaft is divided into two divided shafts 4a and 4b, and a male thread 4c and a female thread 4 respectively provided on the joint surfaces of these split shafts.
d. In this case, in order to stably cut the neck of a self-supporting cable with a larger outer diameter, the interval between the divided rollers can be adjusted by rotating the male and female threads of the dividing shaft. It is possible to widen the distance between the rollers.

The support includes a support body 5a, a leg portion 5b having one end fixed to approximately the center of the support body.
a handle 5c whose center is fixed to the other end of the leg;
A metal fitting 5d with an Ω-shaped cross section is fixed to the support body with screws B and supports both ends of the shaft, and a metal fitting 5d is screwed into a hole (not shown) in the metal fitting with an Ω-shaped cross section and attached to the support body from above the shaft. A holding bolt 5e is provided.

As shown in FIG. 3, one end of the tear line 6a passes through a screw S of a somewhat small diameter into a hole T made in one end of the support main body 5a, and a hole P is inserted into the neck of the screw.
The one end 6a of the tear line is fixed to one end of the support main body 5a by opening the hole, passing one end 6a of the tear line through this hole, and screwing and tightening the nut W. The other end of the above-mentioned tearing line and the punching nail pass through the hole Q provided at the other end of the support body 5a, as shown in FIG. 4, and are removably fastened thereto. The above hole Q is
Notch Q ₁ for inserting one end 6b of the tear line
and a hole _Q2 connected to this notch for hooking the punching needle 6c. In this case, one end of the tearing wire is attached to a nut W so that it can be replaced with a new tearing wire when the tearing wire 6 deteriorates or breaks.
The other end of the tear line is detachable.

When assembling and using the self-supporting type cable neck slitting tool of the present invention constructed as described above, the self-supporting type After adjusting the curvature of the cable body to approximately match the curvature of the outer surface of the roller, as shown in FIG. , and then pull the handle 5c of the support in the longitudinal direction of the cable to release the roller 3.
The neck portion 1c of the cable is cut in the longitudinal direction while running on the cable body 1a.

In addition, in the above explanation, the shaft 4 is fixed to the support main body 5a with the bolt 5e, and the roller is rotated with respect to the shaft, but the present invention is not limited to this, and the radius of the roller The roller may be fixed to the shaft by screwing and tightening a bolt into a hole in the direction, and the shaft may be rotated relative to the support.

(Effect of the invention) In the self-supporting cable neck slitting device of the present invention, the slitting line is passed through the neck of the self-supporting cable, and the shaft of the roller running on the cable is supported by the support body to slit the neck. Since both ends of the wire are wrapped around each other, the neck of a self-supporting cable can be cut efficiently and stably without requiring any skill, and it also prevents damage to the cable body or injury to the hands. There's nothing to do.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a conventional example, Fig. 2 is a front view with a partially cutaway cross section of the device of the present invention, and Figs. 3 and 4 are explanatory diagrams of a method of hooking the tear line to a support. , FIG. 5 is an explanatory diagram when the apparatus of the present invention is assembled and used. 3...Roller, 4...Shaft, 5...Support, 6...Tearing line.

Claims (1)

[Claims for Utility Model Registration] 1 Consists of a roller, a shaft that passes through the shaft hole of the roller, a support that supports both ends of the shaft, and a tear line that spans both ends of the support. A self-supporting cable decapitation device characterized by: 2 The roller is divided into two horizontally at the center,
A self-supporting cable neck slitting device according to claim 1, characterized in that it has a mechanism for adjusting the interval between the divided rollers. 3. The self-supporting cable neck tearing device according to claim 1 or 2 of the utility model registration claim, wherein the tearing wire is a piano wire. 4. The device for cleaving the neck of a self-supporting cable according to any one of claims 1 to 3 of the claims registered as a utility model, characterized in that the cleaving line is provided with a punching nail at the end.