JPH0993743A - Cable sheath stripper for live wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform opening and closing of an open/close piece split above and below by only the normal and reverse rotation of a driving bevel gear. SOLUTION: A cam follower 14 is provided at the rear of an upper split opening and closing piece 12, thus when the cam follower 14 14 slides and moves in the cam groove of the stationary plate 6 installed at the rear, and the upper opening and the upper split closing piece 12 opens and closes to catch and release a cable between the upper and lower split open/close pieces 11 and 12. What is more, the edge to cut off a cable sheath is attached to the upper split open/close piece 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire coating stripping device for live wires used in uninterruptible construction of distribution lines.

[0002]

2. Description of the Related Art Heretofore, as a wire covering stripping device of this type, a structure disclosed in, for example, Japanese Utility Model Laid-Open No. 61-119919 has been known. In this case, there is a drawback that a locking operation rod for operating the hook lever is required and the operation is troublesome.

[0003]

SUMMARY OF THE INVENTION The present invention has been made to solve the drawbacks described in the prior art, and can be attached to and detached from an electric wire of an apparatus and the electric wire coating can be peeled off only by a rotating operation. The purpose of the present invention is to provide a wire coating stripping device for wires.

[0004]

[Means for Solving the Problems] A fixed plate provided with a sliding cam groove for holding an electric wire by rotating a drive shaft forward and backward and for opening and closing a two-piece opening / closing piece equipped with a cutting edge for stripping an electric wire coating. Set up.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 4, a cutting blade for stripping an electric wire coating is attached to one of the split opening / closing pieces. In a device for stripping the wire coating while closing and rotating the split opening / closing piece by an external driving force, the bearing 3 is fixed to the driven bevel gear 2 driven by the driving bevel gear 1, and the step 4 of the bearing 3 and the driven umbrella are fixed. The fixing plate 6 is arranged so that the inner wall portion of the fixing plate 6 is located in the space portion 5 formed by the outer wall of the gear 2.
Is fixed to the case 7, a cam groove 8 is provided in the fixed plate 6, and the cam groove 8 is a straight line inclined from the starting point S to the branch point P.
The rest is provided along the circumference, and the fixed plate 6 near the branch point P
A pawl 9 is rotatably attached to the base, and a base 10 of the pawl 9 is formed so as to match the circumference, and is constantly urged by a spring force in the axial direction, and the bearing 3 is opened and closed by a lower split. The piece 11 is fixed, the upper split opening / closing piece 12 is openably and closably connected to the lower split opening / closing piece 11, and the connecting portion 13 is biased by a spring force in a direction in which the lower split opening / closing piece 11 and the upper split opening / closing piece 12 are always opened. On the back surface of the upper split opening / closing piece 12,
When the cam floor 14 that slides in the cam groove 8 is fixed and the lower split opening / closing piece 11 is driven to start rotation,
When the cam floor 14 slides in the cam groove 8 and moves, and the cam floor 14 passes the branch point P, the upper split opening / closing piece 12 starts to close, and the cam floor 14 further moves and reaches the claw 9 part. , The cam floor 14 pushes up the bottom 10 of the pawl 9 and continues to move. When the lower split opening / closing piece 11 is reversely rotated when passing the pawl 9, the cam floor 14 starts at the starting point S.
Then, the upper split opening / closing piece 12 is opened.

As shown in FIG. 1, a driven bevel gear 2'is installed so as to face the driven bevel gear 2, and the driven bevel gear 2,
The drive bevel gear 1 meshes with 2 '. Although not shown, idle bevel gears are further meshed with the driven bevel gears 2 and 2 ′. Therefore, when the driving bevel gear 1 is driven, the driven bevel gears 2 and 2 ′ rotate in opposite directions,
Continues to give driving force to the idle bevel gear,
When the notch 15 of 2 ′ comes to a position where it meshes with the drive bevel gear 1, the driven bevel gears 2 and 2 ′ receive a driving force from the idle bevel gear and are configured to continuously rotate without stopping. .

In implementation, the overhead wire is housed in the openings of the upper and lower split opening / closing pieces 11, 12 and then the driving bevel gear 1 is driven to rotate the driven bevel gear 2 once. As shown, the upper and lower split opening / closing pieces 11, 12 are closed,
When the cam floor 14 is pressed in the axial direction by the bottom side 10 of the claw 9 and further continued to rotate in the same direction,
The cam floor 14 is guided by the bottom 10 of the claw 9 and continues to rotate in the same rotation circle, and the cutting edge 16 attached to the upper split opening / closing piece 12 cuts off the wire coating. Nail 9
Plays the role of a railway switch, strips the wire coating for a predetermined length, then reversely rotates the drive bevel gear 1, and when the cam floor 14 reaches the branch point P, is guided by the pawl 9.
After moving to the starting point S and opening the upper split opening / closing piece 12, the apparatus is detached from the opening.

[0008]

Since the present invention is constructed as described above, the upper and lower split opening / closing pieces can be opened / closed by the forward / reverse rotation of the driving bevel gear. Therefore, the locking operation rod for operating the conventional hook lever is provided. Since it is unnecessary and the operation is simple, it is suitable for a wire coating stripping device in an indirect live wire construction method by remote control using a robot or a manipulator as an intermediary.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of an embodiment of the present invention.

[Figure 2] Assembly drawing of main parts

FIG. 3 is a side view showing an opened state of upper and lower split opening / closing pieces.

FIG. 4 is a side view showing a closed state of upper and lower split opening / closing pieces.

[Explanation of symbols]

 1 Drive Bevel Gear 2 2'Drive Bevel Gear 3 Bearing 4 Step 5 Space 6 Fixing Plate 7 Case 8 Cam Groove 9 Claw 10 Bottom 11 Lower Split Opening Piece 12 Upper Split Opening Piece 13 Connecting Part 14 Cam Floor 15 Notch Part 16 Cutting edge S Start point P Branch point

Front page continued (72) Inventor Masami Kurozu 2899 Oda-shi, Oita-shi, Oita-shi, Dabara Nishi Nippon Electric Cable Co., Ltd.

Claims (1)

[Claims] 1. An apparatus for stripping an electric wire coating by attaching a cutting blade for stripping an electric wire coating to one of the split opening / closing pieces, and closing and rotating the split opening / closing piece by an external driving force by a driving bevel gear (1). The bearing (3) is fixed to the driven bevel gear (2) to be driven, and the step (4) of the bearing (3) is fixed.
The fixing plate (6) is fixed to the case (7) so that the inner wall portion of the fixing plate (6) is located in the space portion (5) formed by the outer wall of the driven bevel gear (2) and the fixing plate. Cam groove (8) in (6)
The cam groove (8) is provided in a straight line inclined from the starting point (S) to the branch point (P), and the rest is provided along the circumference.
A claw (9) is rotatably attached to the fixed plate (6) near the branch point (P), and the bottom side (10) of the claw (9) is molded so as to match the circumference, and the shaft is always provided. The lower split opening / closing piece (11) is fixed to the bearing (3) by the spring force in the axial direction, and the upper split opening / closing piece (12) is connected to the lower split opening / closing piece (11) so as to be opened and closed. , Connection part (1
3) is a lower split opening / closing piece (11) and an upper split opening / closing piece (1)
2) is constantly biased in the opening direction by a spring force, and a cam floor (14) that slides in the cam groove (8) is fixed to the back surface of the upper split opening / closing piece (12). When (11) is driven and starts rotating, the cam floor-
When (14) slides in the cam groove (8) and the cam floor (14) passes the branch point (P), the upper split opening / closing piece (12) begins to close, and further the cam floor (14).
Moves and reaches the claw (9), the cam floor (1
4) pushes up the bottom side (10) of the claw (9) and continues moving,
When the lower split opening / closing piece (11) is rotated in the reverse direction when passing through the claw (9), the cam floor (14) returns to the starting point (S) and the upper split opening / closing piece (12) is opened. A wire coating stripping device for a live wire, characterized in that