JPH0615453Y2 - Communication cable peeling tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL FIELD OF APPLICATION: The present invention relates to a stripping tool which is effective for stripping the coating of a connection part of a communication cable, particularly an optical cable.

Conventional technology and problems: Conventionally, the stripping of the connection portion of a communication cable is performed by first traversing the coating of the connection end portion at a predetermined position (that is, cutting into circles) to expose the core wire for a certain length, and then on the cable. It is common to vertically divide the coating of a certain depth (usually at a position where the circumference of the coating is divided into four). In such work, the vertical division was performed by applying a cutting blade to the end of the coating and cutting the back while hammering the back. However, in such a method, there are many inconveniences such that the direction of the rabbit angle and the vertical division is deviated and the cable is cut into the core wire of the cable or is oriented in a different direction. Became a source of inviting. In addition, since there is a movement called a hammer that is separately prepared, the work may be troublesome depending on the connection location.

Means for Solving the Problem: This invention solves the above-mentioned drawbacks of the conventional method, and (1) enables vertical division and cross-section of the coating by an integrally connected assembly, and (2) The assembly shall be provided with two gripping handle parts, and shall include means for vertical division of the sheath of the target cable by gripping the first gripping handle part, and also means for crossing, and the second gripping part. The gripping operation of the handle allows the cable to be fixedly attached when the target cable sheath is vertically split. Details of the present invention having such an idea are as described in the following embodiments.

Example: In the figure, reference numeral 1 is a rod-shaped frame body having a saddle-shaped cross section, and the lower surface is a target cable 2
It is the long-term surface of the. 3 is a first grasping portion provided on the front part of the frame body, and this grasping portion is the first grasping lever 4
The grasping operation is performed by simultaneously grasping the frame body 1 and the target cable 2 which is installed facing the longitudinal direction at this time. The lever 4 is made of a U-shaped rod having a downward cross section, and is pivotally attached at its front end to a pin 6 at the front end of a U-shaped support frame 5 having an upward cross section, which is integrally projecting above the front end of the frame 1. .
An automatic return spring 7 is provided when the lever 4 is grasped and released, and is interposed between the lever 4 and a front end portion of a bell crank piece 12 described later. 8
Is a stopper pin on the support frame 5 and engages with the long groove 9 of the lever 4 to control the lever's rebound. Reference numeral 10 denotes a vertical split blade supporting rod that is slidably mounted on the front end of the frame body 1 along the length of the frame, and a vertical split blade 11 is provided so as to project downward with a fastening screw. Reference numeral 11 'denotes a ridge having a rounded tip and a circular cross section formed along the lower edge of the vertical dividing blade 11 and is provided so as not to damage the core wire of the cable when the blade 11 is cut. The support rod 10 slides in the direction of the arrow in FIG. 2 by the grasping operation of the first grasping portion as described above, and the coating of the target cable is vertically split. 4, a lower end portion of a bell crank (bend) piece 12 pivotally attached to a pin 4'and a recessed portion 1 on an upper surface of a supporting rod 10.
It is performed by engaging with 3. Reference numeral 14 is a transverse blade projecting downward on the lower surface of the rear portion of the grasping lever 4, and is fixed on the projecting frame 16 by a fastening bolt 15. 17 is an elongated groove 1
A leaf spring with 7'is a safety element for avoiding contact with the transverse blade when not in use. Reference numeral 18 is a second grasping portion, which grasps the second grasping lever 19 and the frame body 1 and a target cable which is installed longitudinally facing the frame body 1 at the same time, and the grasping operation is performed. A front end portion is pivotally attached to the same frame by a protruding pin 20 on the rear portion of the body 1, and a free end extends obliquely upward toward the rear when grasping and opening. The lever 19 has a U-shaped rod with a downward cross section, and is formed with an open groove 19 'by pulling out both sides near the front end. Reference numeral 21 denotes a pair of left and right blade-shaped stop pieces, which are a pair of front and rear bearing pieces 1 ′ mounted on the frame body 1.
The upper ends are pivotally mounted on the frame by pins 21 'which are respectively supported on the frame. Reference numeral 22 denotes a hook portion at the upper end of the stop piece 21, which is loosely engaged with the opening groove 19 'of the lever 19 from the inside so that the stop piece takes the posture as shown in FIG. 5 when the lever 19 is grasped and released. To be done. Reference numeral 21 "denotes a laterally extending side portion of the stop piece 21, which is always in contact with the lower end surface of the side edge of the lever 19. The cable holding surface of the stop side 21 is usually thin. Although a rubber plate is stretched to protect the hugging cable, it is not shown in the figure. 24 is a hanger which projects upward from the bell crank piece 12 and engages with the square hook portion 12 'on the lever 4. It is used when the first grasping lever 4 is stored in the grasped state.

In the above example, the vertical division of the coating was explained for the case of cutting the desired length only once, but it is also conceivable to perform this stepwise in a ratchet type in small steps,
In this case, a plurality of recesses 13 on the support rod 10 may be provided. This is because when the cutting blade is cut into the coating, it is not displaced due to the elastic force of the spring 7 due to the pressure contact of the coating, so that the cutting can be performed stepwise by repeating the same grasping operation. .

The operation of the present tool is to first open both grasping parts, place the target cable in the lateral direction between the frame 1 and the lever 4,
At a certain length from the connection end, the coating is crossed (rounded) and pulled out to expose the core wire 2'at the tip. For this traverse, first grasp the first covering portion and cut the traverse blade 14 into the covering,
This can be done by rotating the entire tool. Next, the target cable 2 is installed on the lower surface of the frame body 1 along the longitudinal direction. At this time, the tip of the vertical split grip is made to face the vertical split blade. Next, by grasping the first and second grasping parts, it is possible to immovably stop and vertically divide the target cable. As the cable is stopped, the lower end faces of both side portions of the lever move downward in the direction of the arrow in FIG. 5 according to the movement of the lever 19 accompanying the grasping of the second grasping portion 18. The overhanging piece portion 21 ″ is pushed down and the piece is displaced as shown by the chain line in the figure to immobilize the cable 2 to be held. The vertical division of the cable is performed by grasping the second grasping portion. At the same time, the operation of the first grasping portion is performed, that is, the lever 4 is moved by this grasping operation, and this movement drives the lower end portion of the bell crank 12 rearward, and accordingly the lower end portion is engaged. The supporting rod 10 is moved in the direction of the arrow in FIG. 2, and the vertical dividing blade 11 is vertically cut into the coating of the target cable as desired.

Effect of the Invention: As described above, with the present device, the cable sheath can be traversed and vertically split with one tool, and since it can be performed by simple operation of the first and second gripping parts, cable stripping can be performed. Not only is it extremely advantageous, but it is possible to completely eliminate the inconvenience that the cutting direction is wrong because the cable is fixedly fixed and the cutting can be performed in a certain direction during vertical division.
Another major advantage is that it is structurally simple and can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is the same side view, FIG. 3 is the same partial cutaway side view, and FIG. 4 is along the line AA of FIG. FIG. 5 is an enlarged cross-sectional view of FIG.
It is an expanded sectional view along a line. DESCRIPTION OF SYMBOLS 1 ... Rod-shaped frame, 3 ... 1st grasping part, 4 ... 1st grasping lever, 10 ... Vertical split blade support rod, 11 ... Vertical split blade, 1
4 ... transverse blade, 18 ... second grasping part, 19 ... second grasping lever, 20 ... stop piece.

Claims (4)

[Scope of utility model registration request] 1. A target cable that has a portion for holding a target cable in a longitudinal direction on its lower surface, and a front end portion of a first grasping lever is pivotally attached to a front end portion of the lever and the lever itself and the target cable. Is provided with a first grasping portion 3 capable of simultaneous grasping operation, and a front end portion of a second grasping lever is pivotally attached to a rear end portion of the lever and the target cable held by the lever itself at the same time. A rod-shaped frame body 1 provided with a second grasping portion 18 that enables a grasping operation; a vertical split blade support rod that is slidably mounted longitudinally on the upper surface of the front end portion of the frame body; A pair of facing operation pieces installed on the rear part of the rear end; first interlocking means for sliding the vertical split blade supporting rod rearward by the gripping operation of the first gripping part; and the second gripping part Second interlocking means for actuating the stopping and actuating piece by grasping operation; on the lower rear surface of the first grasping lever Are devices directed towards, skinning tool communication cable comprising a transverse blade purposes cable jacket. 2. The utility model registration claim, wherein the first interlocking means includes transmission of engagement between the lower end of the bell crank piece 12 pivotally attached to the pin 4'on the lever 19 and the concave portion 13 on the support rod 10. A stripping tool for a communication cable according to item 1. 3. An upper end of the second interlocking means is pivotally attached near the front end of the frame 1. Including the abutment between the projecting side portion 21 ″ of the pair of blade-shaped stop pieces 21 whose lower portions are opened and closed, and the lower end surfaces of both side portions of the second grasping lever 19 having a downwardly U-shaped cross section. A peeling tool for a communication cable according to claims 1 and 2 of the utility model registration claim. 4. The communication cable according to claim 1, wherein the lower edge of the vertical split blade 11 is provided with a long ridge 11 'having a circular cross section and a rounded tip. Peeling tool.