JPH02211014A - Stripper - Google Patents

Abstract

PURPOSE:To perform stripping work continuously and efficiently by separating a stopper from a fixed blade plate in interlocking the opening movement of a pair of frames. CONSTITUTION:When a pair of grips 1 and 1' are grasped, a moving blade plate 22 moves towards a fixed blade plate 21 as a jointing arm 23 is pulled back through a ring 25. The cover of a cable A is cut off with the moving blade plate 22 and a fixed blade plate 21. After the cutting when the grips 1 and 1' are further grasped, a pair of frames 5 and 5' pivot outside with a shaft 3 as a center and they are opened owing to the action of rotating force to a jointing arm 14 and a link 16 in a clamping mechanism 10 and to a joint section of a jointing arm 23 and a link 25 in a cutting mechanism 20 respectively. When they are opened, the terminal section of the cover is removed, because the fixed blade plate 21 and moving blade plate 22 will push back the cutting surface out by the blade plates 21 and 22 outwards. The stripping work can thereby be performed continuously and efficiently.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a stripper for cutting and removing the covering of electric wires.

[Conventional technology]

A stripper that cuts and removes a predetermined length of the sheath from the end of an electric wire consists of a pair of grips connected by a shaft so that they can be opened and closed, and a window is provided at the tip of a pair of frames that can be opened and closed about the shaft. The window of the frame is provided with an electric wire clamping mechanism that is linked to the movement of the grip, and the outside of the window of the frame is provided with a sheathing cutting mechanism that is linked to the movement of the grip,
By gripping the grip, the clamping mechanism clamps the electric wire, the cutting mechanism cuts the coating, and the pair of frames opens, in this order.

When removing the wire sheathing using the above stopper, simply inserting the end of the wire into the window of the pair of frames.
There is a problem in that the cut length of the coating becomes non-uniform.

To solve this problem, a stripper has been proposed in which a stopper is provided outside the coating cutting mechanism and the end of the wire is positioned by coming into contact with the stopper.

[Problem to be solved by the invention]

The above-mentioned stopper is provided so that its position can be adjusted with respect to the sheathing cutting mechanism, but after the position adjustment, it is fixed by tightening a nut etc. and the distance between it and the sheathing cutting mechanism is maintained constant. When the coating is cut and removed, some cutting residue of the coating may remain between the fixed blade plate forming the coating cutting mechanism and the stopper.

In particular, when wires are coated with rubber, the coating has high elasticity, so it is easy to leave cut marks on the wires, and if any remain, they must be removed manually each time, making it difficult to perform stripping operations efficiently. There is an inconvenience.

Therefore, the technical object of the present invention is to provide a stripper which eliminates the above-mentioned disadvantages and can reliably remove cutting debris from the coating.

[Means to solve the problem]

In order to solve the above problems, in the present invention, between a stopper for positioning the wire end provided outside the sheath cutting mechanism and a pair of frames, the stopper prevents the opening movement of the pair of frames from the sheath cutting mechanism. The company adopted a configuration that includes an interlocking mechanism that converts the movement from the movement away from the movement.

[Effect]

With the above configuration, when the sheath cutting mechanism cuts the sheath of the wire by gripping the grip, and the pair of frames are opened and the sheath cutting mechanism pulls out the end of the sheath, the stopper is removed from the sheath cutting mechanism. Since they are separated, it is possible to prevent cut particles of the coating from remaining between the coating cutting mechanism and the stopper.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 6, a pair of grips 1.1
are arranged to face each other, and connecting pieces 2 provided at the tip of each grip 1.1' are connected to each other via a shaft 3. Further, a coil spring 4 for return rotation is incorporated between the grips 1 and 1'.

The inner lower part of a bifurcated piece 6 provided at the rear end of the pair of frames 5.5' is rotatably supported on the shaft 3. A window 7 for inserting an electric wire is formed at the tip of the pair of frames 5.5, and the electric wire inserted into the window 7 of the frame 5 is held and held by a clamping mechanism 10 that is linked to the movement of the grip 1.1'. The clamping is released.

The clamping machine f110 has a clamping surface 11 on the lower side of the window 7, and a folding piece 1 on the outside of a clamping plate 12 arranged opposite to the clamping surface 11.
3, and the connecting arm 14 provided at the rear end of this bent piece 13 is slidably inserted into the guide groove 15 formed in the frame 5, and the end of the connecting arm 14 and the tip of the grip 1 are connected to each other. are connected by a link 16.

Therefore, by grasping the grip 1, the connecting arm 14 is pulled via the link 16, and the clamping plate 12 is moved to the clamping surface 1.
1 and clamps the electric IA with its clamping surfaces 11.

The covering B of the electric wire A held by the holding mechanism 10 is cut by a cutting mechanism 20 provided outside the tip of the other frame 5 and linked to the movement of the pair of grips 1.1.

The cutting mechanism 20 has a fixed blade plate 21 mounted below the window 7 on the outside of the tip of the other frame 5', a movable blade plate 22 disposed opposite to the fixed blade plate 21, and A connecting arm 23 provided at the rear end is slidably inserted into a guide groove 24 formed in the other frame 5, and the end of the connecting arm 23 and the tip of the other grip 1' are connected by a link 25. be.

In addition, on the opposing sides of the fixed blade plate 21 and the movable blade plate 22,
Semicircular cutting blades 26 with different diameters are provided.

With the above configuration, when the pair of grips 1.1' are grasped, the connecting arm 23 is pulled via the link 25, so the movable blade plate 22 moves toward the fixed blade plate 21, and the fixed blade plate 21 to cut the covering B of the electric wire A. After the cutting, when the pair of grips 1.1' are further squeezed, rotational force acts on the connecting portion between the connecting arm 14 and the link 16 of the clamping mechanism 10 and the connecting portion between the connecting arm 23 and the link 25 of the cutting mechanism 20, respectively. For a pair of frames 5.5
' is opened by rotating outward around the shaft 3, and when it is opened, the fixed blade plate 21 and the movable blade plate 22 are separated from each other by the double blade plate 21.2.
In order to push the cut surface according to 2 outward, the ends of the coating are removed.

After cutting and removing the coating, the grip of the pair of grips 1.1' is released, and when the pair of frames 5.5' returns before the movable blade plate 22, the movable blade plate 22 and the fixed blade plate Because there is a risk of deforming the conductor from which the sheath B of the wire A was removed in step 21, between the pair of frames 5.5',
A holding mechanism 3 that holds the frame 5.5' in an open state
0 is provided, and when the holding mechanism 30 is operated, the holding mechanism 10
and the cutting mechanism 20 is returned to its original position, and the frame 5.5' is returned to its original position after the cutting mechanism 20 is returned to its original position. ', and - force support pin 31
The second lever 32 supported by the other grip 1' is connected to the tip of the second lever 33 supported by the other support pin 31' by a connecting pin 34, and the rear end of the second lever 33 is connected to the other grip 1'.
It is placed at a position facing the tip of the.

Also, a kick spring 3 is attached to the tip of the other grip 1'.
5 are connected to each other, and the other end of the kick spring 35 is brought into contact with the lower side of the louver 32.

With the above configuration, when the pair of frames 5.5' rotate around the shaft 3 and open, the first lever 32 and the second lever 33 each rotate around the support pin 31.31', and each When the levers 32 and 33 are rotated to a substantially horizontal position,
The connecting pin 34 faces on a straight line connecting the centers of the pair of support pins 31, 31', and the connecting pin 34 is pushed upward by the elasticity of the kick spring 35, so that it releases the grip of the pair of grips 1,1'. Even a pair of frames 5.
5' is held open.

Therefore, by releasing the pair of grips 1.1', the clamping mechanism 10 and the cutting mechanism 20 return to their original positions, and after the movable blade plate 22 of the cutting mechanism 20 returns, the tip of the other grip 1' is moved to the second lever 33. In order to push up the other end, the first lever 32 and the second lever 33 rotate around the support pin 31.31', and the pair of frames 5.5' rotate in the closing direction.

Note that since the other end of the kick spring 35 is configured to push the first lever 32, the rotational resistance of the other grip 1' supporting the kick spring 35 is greater than the rotational resistance of the one grip 1. For this reason, a pair of grips 1.1'
By grasping, one grip 1 rotates before the other grip 1', so that the cutting mechanism 20 is activated after the clamping mechanism 10 is activated.

The tip of the electric wire A to be stripped by the stripper is positioned by a stopper 40 provided on the outside of the fixed blade plate 21. There is a space between this stopper 40 and the pair of frames 5.5' to prevent the opening movement of the frame 5.5'.
An interlocking mechanism 50 is provided that converts the movement of the stopper 40 away from the fixed blade plate 21.

The interlocking mechanism 50 is connected to the other frame 5 in which the cutting mechanism 20 is located.
A bracket 51 is attached to the outer surface of the bracket 51, and a bar 53 is formed into an L shape around a pin 52 protruding from the upper surface of the bracket 51.
An arm 54 is formed on the upper side of the stopper 40 and extends above the lever 53. A long hole 55 is provided in the arm 54, and the tip of the lever 53 is inserted through the long hole 55. The arm 54 is fixed by tightening a screw 56 screwed into the arm 54.

Further, a kick spring 57 is attached to the outside of the pin 52,
The lever 53 is deflected in one direction by the elasticity of the kick spring 57, and the outer periphery of the lever 53 comes into contact with a protrusion 58 provided on the bracket 51, and this contact prevents the lever 53 from rotating.

Further, a locking arm 59 is provided on the back side of the pair of frames 5.5', and one end of the locking arm 5S is connected to the lever 5.
3, and the other end of the locking arm 5S has a hook portion 60.
An engaging pin 61 that can be engaged with the hook portion 60 is supported by a bracket 62, and this bracket 62 is fixed to the outer surface of the frame 5 having a clamping mechanism.

Then, a gap is formed between the hook portion 60 and the engagement pin 61 as shown in FIG. should be engaged.

Now, insert the end of the electric wire A into the window 7 of the frame 5.5', position the tip of the electric wire A by contacting the stopper 40, and then squeeze the pair of grips 1.1' to release the clamping mechanism 10. clamps the end portion of the electric wire A, and then the cutting mechanism 20 cuts the covering B of the electric wire A. From this, when the pair of grips 1.1' are further squeezed, the pair of frames 5.5'
The end portion of the coating B is pulled out by the fixed blade plate 21 and the movable blade plate 22.

Also, by rotating the frame 5.5', the engagement arm 5
The distance between the hook portion 60 of No. 9 and the engagement pin 61 gradually becomes smaller, and finally the hook portion 60 engages with the retaining pin 61. Due to this engagement, the retaining arm 59 stops and the pair of frames 5.5' further opens, so that the lever 53
Rotate around. The lever 53 has a stopper 40
Since the arm 54 is connected, the stopper 40 also rotates together with the lever 53, and the cutting scraps cut and removed from the end of the electric wire A are discharged from between the fixed blade plate 21 and the stopper 40 by the rotation of the stopper 40.

Therefore, no cutting residue remains between the fixed blade plate 21 and the stopper 40, and as a result, the stripping operation can be performed continuously.

In the first embodiment, a required interval was provided between the engagement pin 61 and the hook part 60 of the engagement arm 5S, but the above-mentioned interval was eliminated so that the engagement pin 61 and the hook part 60 were always in an engaged state. The stopper 40 may be rotated about the and 752 simultaneously with the opening of the pair of frames 5.5'.

In addition, the locking arm 59 is divided in the length direction, the divided arms are connected with a spring, and the hook portion is locked to the locking bottle until the pair of frames 5.5' are opened at a predetermined angle. It is also possible to prevent the lever 53 from rotating due to the extension of the spring, so that when the frame 5.5' rotates, the stopper 40 is rotated together with the lever 53.

7 to 8 show a second embodiment of the stripper interlocking mechanism 50 according to this invention. In this embodiment, a bracket 70 is attached to the outer surface of the frame 5' having the cutting mechanism 20, and the fixed blade plate 21 is attached to the bracket 70.
A long elongated hole 71 is formed toward.

Further, the lever 72 provided on the bracket 70 has a long hole 73 which is long in the direction crossing the long hole 71 of the bracket 70.
Further, an arm 74 provided on the lever 72 is provided with a stopper 40 facing the fixed blade plate 21, and a long hole 75 is provided in the same direction as the long hole 71 of the bracket 70. A pair of nuts 77 are screwed into the screws 76 inserted into the intersections of the long holes 71, 73, and 75, and the nuts 77
The arm 74 is fixed by tightening.

Further, the tip of the screw 76 is threadedly engaged with a slider 78 superimposed on the lower surface of the bracket 70, and bent pieces 79 that engage with both side edges of the bracket 70 are provided on both sides of the slider 70, so that the slider 78 is prevented from rotating, and the slider 78 is supported movably relative to the fixed blade plate 21.

The lever 72 is rotatably supported around a pin 80 provided on the upper surface of the bracket 70.
One end of the engagement arm 59 is connected to the end of the engagement arm 59, and the other end of the engagement arm 59 is provided with a hook portion 60 that can be engaged with a retaining bottle 61, as in the first embodiment. be. This hook part 60
A required spacing may be provided between and the engaging pin 61, or a configuration may be adopted in which the hook portion 60 is always engaged with the engaging pin 61 without any spacing.

In the above-described configuration, when the pair of grips 1.1' are grasped and the pair of frames 5.5' are released after the clamping mechanism 10 and the cutting mechanism 20 are operated, the engagement pin 61 and the hook portion 6 are released.
0 engagement, the engagement arm 59 is held in a non-movable state, and then the lever 72 rotates around the bin 80, and the stopper 40 moves away from the fixed blade plate 21 along the elongated hole 71 of the bracket 70. Move in the direction you want. Therefore, the gap between the fixed blade plate 21 and the stopper 40 becomes wider, and the cutting mechanism 2
Cutting stopper 40 pulled out by operation of 0
and the fixed blade plate 21.

〔Effect of the invention〕

As described above, in this invention, since the stopper is moved away from the fixed blade plate in conjunction with the opening movement of the pair of frames, cutting debris can be completely eliminated from between the stopper and the fixed blade plate. . Therefore, stripping work can be carried out continuously and efficiently.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a first embodiment of the stripper according to the present invention, FIG. 2 is a longitudinal sectional front view showing an enlarged main part of the same, and FIG. 4 is a sectional view along the TV-TV line in FIG. 2, FIG. 5 is a front view showing the same operating state, FIG. 6 is a plan view of FIG. 5, FIG. 7 is a perspective view showing a second embodiment of the stripper, and FIG. 8 is a sectional view of FIG. 7. 1.1'...Grip, 2...Connecting piece, 3...Shaft, 5.5'...
...Frame, 7...Window, 10
. . . Holding mechanism, 20 . . . Cutting mechanism,
40...Stopper, 50...Interlocking mechanism.

Claims (1)

[Claims] (1) It has a pair of grips, the connection piece provided at the tip of each grip is rotatably connected by a shaft, and the electric wire is inserted into the tip of each of a pair of frames that can be opened and closed about this shaft. A wire clamping mechanism is provided on the window of one frame that is linked to the movement of the grip, and a sheathing cutting mechanism that is linked to the movement of the grip is provided on the outside of the window of the other frame. In the stripper, the wire clamping mechanism performs an operation of clamping the wire, a sheathing cutting mechanism cuts the sheathing, and a pair of frames opens the wire in this order, in which the tip of the wire is positioned outside the sheathing cutting mechanism. 1. A stripper comprising: a stopper, and an interlocking mechanism provided between the stopper and the pair of frames to convert an opening movement of the pair of frames into a movement of the stopper separating from the cutting mechanism.