JPH02179207A - Cable terminal-cutting tool - Google Patents

Abstract

PURPOSE:To enable both lead-wire forming work and penciling work with one tool by enabling varying the distance from a nipper body of a sizing member for determining lead wire dimensions, by fitting said sizing member in a freely removable manner and by replacing said sizing member in the cut state of a tapered face so that a cutter moves in the radial direction of a cable. CONSTITUTION:A sizing member 69, in which a contact plate 71 comes into contact with a cable end face to determine the lead wire dimensions of a cable 1, is removably fitted to the nipper body 2 of said contact plate 71 while the distance of said contact plate 71 from said nipper body 2 is made variable, and said sizing member 69 is directly or indirectly fitted to a guide member 19 and/or an adjusting member 79 in the cut state of a tapered face so that said contact plate 71 comes into contact with the cable end face while a cutter 4 moves in the radial direction of said cable 1. Therefore, when the sizing member 69 is fitted and the nipper body 2 is rotated, a lead wire part 30 is formed. Also, when said nipper body 2 is rotated, the tapered face 7 can be formed. Thus, two kinds of tools for respectively forming the lead wire part 30 and the tapered face 7 are made unnecessary.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a cable end cutting tool.

[Prior art and problems to be solved] -Finally, when connecting a cable such as a C■ cable, the cable must be made of a conductor, an internal semiconducting layer, an insulator such as cross-linked polyethylene,
Since an external semiconductive layer, a shielding layer, a sheath, etc. are sequentially provided, the conductor at the end is first exposed and then the insulator is scraped off into a pencil shape, a so-called penciling process.

Conventionally, tools for penciling have been so-called manual tools, which are equipped with an insertion hole into which the end of the cable is rotatably inserted, and a cutter whose cutting edge is inclined to correspond to the inclination of the tapered surface. There was one shaped like a pencil sharpener. Therefore, it is not possible to use the same tool for both the cutting and penciling operations, and the above-mentioned penciling tools require a considerable rotational torque for the operator.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a cable end cutting tool that can perform lead-out work and penciling work with a single tool, and also allows easy cutting of cable insulators.

[Means to solve the problem]

In order to achieve the above object, the cable end cutting tool of the present invention includes a clamping body with a handle that clamps a cable, and a clamping body that is attached to the clamping body so that it can be fixed to the clamping body and can be reciprocated in the radial direction of the cable. A cutter that cuts the insulation of the cable by rotating around the cable axis, and a cutter that is slidably connected to the force/shield in a reciprocating state and moves the cutter in the radial direction of the cable by reciprocating in the cable axis direction. A cable end cutting tool comprising: a cutter cutting depth adjusting member that moves reciprocally; and a guide member that guides the adjusting member so as to be able to reciprocate along the cable axis direction; A dimension regulating member that comes into contact with the cable end surface to determine the cable outlet dimension is removably attached to the clamping body with a variable distance from the clamping body of the corresponding contact plate, and when the tapered surface part is ground. , wherein the legal regulation member (1) is attached directly or indirectly to the guide member and/or the adjustment member, and the cutter is configured to move in the radial direction of the cable while the cough contact plate portion is in contact with the end face of the cable. It is.

[Effect]

First, the cable is held between the holding bodies and the size regulating member is attached to the holding body. In this case, the cutting edge of the cutter is fixed so that it reaches the internal semiconductor of the cable. In this state, grip the handle and rotate the clamping body so that the cable end surface protrudes toward the dimension regulating member, and stop the rotation when the cable end surface contacts the abutting plate of the regulating member. Then, a lead-out portion is formed. Next, the regulating member is replaced with a guide member and/or an adjusting member, and the cutter is made reciprocatable in the direction of the cable axis. In this case, the contact plate portion is in contact with the end face of the cable. In this state, if you grip the handle and rotate the clamping body, the guide member will move along the cable axis direction toward the regulating member as the cable is removed, and the cutter cutting depth adjusting member similarly moves along the cable axis direction, the cutter slides in the outer diameter direction of the cable, and tapered surface portions are sequentially formed.

(Example〕 Examples will be described below with reference to the drawings.

1, 2, and 3 show a cable end cutting tool according to the present invention, which includes a cable l (FIGS. 4 and 5).
(see figure), and a cutter 4 attached to the clamping body 2 and cutting the insulator 3 of the cable 1 by rotation of the clamping body 2 about the cable l axis. There is.

Here, the cable 1 is, for example, a Cv cable, and as shown in FIG. 4 and FIG. It consists of an insulator 3, and an external semiconducting layer (not shown), a shielding layer, a sheath, etc. that sequentially cover the insulator 3.

That is, this tool is for stripping off the virtual part shown in FIG. 4. Specifically, the dimension L1 from the end face 7 is the opening dimension, and the internal semiconductive layer 6 of the opening part 30 is peeled off with this tool. It is not peeled off, but is peeled off with a knife or the like after being scraped.

Thus, the clamping body 2 includes a pair of handle-equipped frames 9.10 each having a rotating handle 8 protruding therefrom, and the frame bodies 9.10. The dimension S between the plurality of parallel movement guiding rods 11 that hold the lO so that they can be approached and separated from each other and the frame body 9° and 10 is the outer diameter dimension D of the insulator 3 of the cable 1 (see Fig. 4). ), and an interval adjustment mechanism 12 that adjusts and maintains the dimensions corresponding to the distance.

Here, the frame 9 refers to the upper and lower frames 13 made of hollow flat plates.
．． 14, a pair of front and rear connecting rods 15.15 that connect the upper and lower frames 13.14, and a mounting frame 16 that is connected to the upper and lower frames 13.14 and to which the handle 8 is removably attached by screw connection or the like. , consists of. Further, the upper and lower frames 13 and 14 are arranged in parallel, and the width of the upper frame 13 is larger than that of the lower frame 14, so that the outer side of the upper frame 13 is larger than that of the lower frame 14 in plan view. It protrudes outward from the outer end, and the inner end of the upper and lower frames 13 and 14 is bent. A pair of guide rollers 1 are provided at the inner ends of the upper and lower frames 13 and 14, respectively.
8... (that is, four guide rollers are provided per day) are rotatably supported, and a guide member 19, which will be described later, is removably inserted and slidable at the outer end of the upper frame 13. A pair of insertion parts 20, 20 are provided which are movably inserted. That is, the insertion part 20 is composed of upper and lower walls 23.24 having through holes 21 and 22, and left and right side walls 25.26, and a solid rod-shaped guide member 19 is inserted into and removed from the through holes 21.22. It is slidably inserted. Further, the cutter 4 is attached to the upper surface 27 of the upper frame 13 via a cutter holder 17.

In addition, when viewed from above, as shown in FIG. 2, the handle 8
The date and the cutter 4 are shifted back and forth.

The mounting frame 16 is connected to an upper wall 31 connected to the upper frame 13.
, a side wall 32 to which the handle 8 is attached, and a lower wall 33 connected to the lower frame 14, and the lower wall 33 is provided with a recess 34 opening downward. 35° 35 is a reinforcing rib.

Thus, the frame 1O includes upper and lower frames 36.37 made of hollow flat plates arranged in parallel, a pair of front and rear connecting rods 38.38 that connect the upper and lower frames 36.37, and the upper and lower frames 36.37.
and a U-shaped mounting frame 39 to which the handle 8 is removably attached by screw connection or the like.
Further, the upper and lower frames 36 and 37 have the same shape, and at their inner ends there are four guide rollers 40 facing the guide rollers 18 of the frame 9 (that is, four guide rollers 40 are provided). ) is rotatably supported. In addition, the rollers 40.4 of this upper and lower frames 36.37
A notch 41.41 is formed at the inner end between the rollers 18 and 18 of the upper and lower frames 13.14 of the frame 9, and a cutout 42.42 is also formed at the inner end between the rollers 18 and 18. Further, the tip portions of the connecting rods 38.38 protrude from the upper surface 36a of the upper frame 36 to form protruding portions 43.43.

The parallel movement guidance guide rods 11 are protruded from the front and rear ends of the upper and lower frames 13.14 of the frame body 9, and the seventh As shown in the figure, through holes 44 are provided in which the guide rods 11 can freely slide. That is, when the frame 9 is fixed and the frame 10 is reciprocated in the axial direction of the handle 8, the frame 10 moves in parallel along the guide rods 11 as indicated by arrows M and N. Rod 9. IOs will move closer to each other and move away from each other.

Next, the interval adjustment mechanism 12 is provided in the front and rear, and the frame body 9.
A bolt rod 45 interconnecting the lOs, and the bolt rod 45
A nut member 46 is screwed into the upper and lower guide rods 11.
The head part 45a is fixed to the mounting piece 47 fixed to the frame 11, and the threaded part 45b is inserted into the insertion hole 49 of the nut member abutting piece 48 provided protruding from the front and rear ends of the upper and lower frames 36 and 37 of the frame body 10.
It is inserted freely into the Further, the nut member 46 is disposed outside the abutting piece 48 and restricts the outward movement of the frame IO. In other words, the NAND member 46 is
, 10 in the direction of separation.

Therefore, the cable l is inserted between the frames 9 and 10, and as shown in FIG. 9, lO
are brought close to each other, and in this state, the nut member 46 of the spacing adjustment mechanism 12 is screwed until it abuts against the abutment piece 48, so that the spacing between the frames 9 and 10 is maintained in that state. Therefore, the cable l is held between the holding bodies 2.

Further, a nut member 50 interposed between a mounting piece 47 and an abutting piece 48 is screwed onto the bolt rod 45 of one (front in the figure) of the interval adjustment mechanism 12 so as to be able to be screwed forward and backward. That is, as shown in FIG. 9, when this tool is rotated in the direction of arrow X, if this nut member 50 is not present, the cable l
This will loosen the clamping state of the nut member 50.
prevents loosening during cutting. That is, if the rotation direction of this nut member 50 is in the direction of arrow X shown in FIG.
As shown in the illustration, it is attached to the front, but on the other hand, if it rotates,
Attached to the rear.

In addition, in order to release the pinched state of the cable l, for example,
If the frame 10 is in the state shown by the imaginary line in FIG. 2, if the nut member 40 of the spacing adjustment mechanism 12 is screwed back to the state shown by the solid line, the frame 10 will move in the direction of arrow N to the position shown by the solid line. It becomes possible to slide and release the clamped state.

Next, the cutter 4 is attached to the cutter receiving plate 51 such that the protruding length of the blade portion 52 is adjustable. In addition, the blade portion 5
2 consists of a cutting edge 4a for cutting in the cable radial direction and a cutting edge 4b for cutting in the cable axial direction, and the cutting edge 4a and the cutting edge 4b are at right angles. Note that the cutter 4 is provided with a long hole 53 through which a bolt 54 for attaching the acid cutter 4 to the cutter receiving plate 51 is inserted.
The amount of protrusion is adjusted.

Further, as shown in FIG. 6, the cutter holder 17 includes a fitting part 55 into which the cutter receiving plate 51 is fitted in a reciprocating manner,
Further, a fitting groove 56 is formed above the cutter 4, into which the cutter 4 is fitted reciprocally. That is, the fitting portion 55 and the fitting groove 56 form a T-shaped dovetail groove. and,
A fixing member 57 such as a wing nut is attached to this holder 17, and when the fixing member 57 is tightened, its tip comes into contact with the receiving plate 51, and the cutter receiving plate 51 is fixed in a non-slidable manner. , the cutter 4 is fixed in that state. Further, when the tightening is released, the cutter receiving plate 51 becomes free, and the cutter 4 becomes slidable. Note that the holding body 17 includes an upper wall 17a, an intermediate portion 17b, and a lower wall 17c.
It is made into one piece with a fixing device such as a bolt (not shown). Of course, this holding body 17 may be made integral.

Thus, this holder 17 is attached to the upper surface 27 of the upper frame 13 via the cutting angle adjustment mechanism 59. here,
The angle adjustment mechanism 59 includes an adjustment screw rod 61 that is screwed forward and backward into a screw hole 60 of the holder 17, and the screw rod 61 is screwed to adjust the tip end surface 61a of the screw rod 61 to the lower surface of the holder 17. By adjusting the amount of protrusion from 62, the angle of inclination of the holder 17 with respect to the upper surface 27 of the upper frame 13 is adjusted. 63 is the through hole 6
A bolt member 65 which is screwed onto the upper frame 13 via 4 is a threaded rod which is fixed to the upper frame 13 and protrudes from the upper surface 67 of the holder 17 via a through hole 66. Further, 68 is a nut member screwed onto the screw rod 65.

Therefore, by adjusting the amount of protrusion of the tip surface 61a of the screw rod 61, the inclination angle α of the cutter 4 with respect to the upper surface 27 of the upper frame 13 can be adjusted.
. will be adjusted, and the cutting angle α will be adjusted. (α. and α are a constant difference.) Here, the cutting angle α is an inclination angle with respect to a plane perpendicular to the axial direction of the cable 1, and this angle allows the cutting edge 4a to
The radial cutting pitch is determined by

That is, the cutter 4 is held by the cutter holder 17 so as to be fixed and capable of reciprocating in the radial direction of the cable 1,
Moreover, the cutting angle α (see FIG. 4) of the cutting edge 4a for radial cutting can be adjusted.

Therefore, when forming the outlet portion 30 of the cable l,
A size regulating member 69 as shown in FIGS. 1 and 3 is used.

That is, this dimension regulating member 69 includes an insertion cylinder 70° 70 that is removably inserted into the protrusion 43.43 of the connecting rod 38.38, and a stopper member 72 that is approximately T-shaped in plan view. and a connecting portion 73 that connects the stopper member 72 to the insertion cylinder 70.70. Specifically, a fixing device 74 such as a butterfly bolt is attached to the lower part of the insertion cylinder 70,
When this fastener 74 is tightened, the tip of the fastener 74 will
The insertion cylinder 70 is pressed into contact with the protrusion 43 inserted into the insertion cylinder 70, and the insertion cylinder 70 is fixed. Conversely, if the fastener 74 is loosened, the insertion cylinder 70 is moved against the projection 43. It can be inserted and removed freely. A screw rod 75 is fixed to the upper opening of the insertion cylinder 70, and the screw rod 75.
The connecting plate part 76 of the stopper part 72 is inserted through it, and nut members 77 and 78 are screwed thereto.

In other words, the threaded rod 75 and the nut members 77, 78 constitute the connecting portion 73, and if the vertical positions of the nut members 77, 78 are changed, the stopper member 72 can be moved as shown by the imaginary line in FIG. The vertical position can be changed.

Thus, the stopper member 72 has an abutting plate portion 71 that abuts against the cable end surface 1a (see FIG. 4), and this abutting plate portion 71 is , is held parallel to a plane perpendicular to the cable l-axis direction.

Therefore, as shown in FIG. 9, the cable l is held between the holding bodies 2, and the cutter 4 is fixed in such a state that the tip of the cutting edge 4a reaches the internal semiconductive layer 6, and in this state, the handle 8, 8 and rotate this tool in the direction of the arrow X, the insulator 3 is scraped off in the radial direction by the cutting edge 4a, and in the axial direction by the cutting edge 4b, and then the insulator 3 is scraped off in the axial direction by the cutting edge 4b. successively protrudes toward the abutting plate portion 71 and abuts on the corresponding abutting plate portion 71. In other words, if this regulating member 69 is installed, the cable end face 1
The insulator 13 can be cut until a comes into contact with the insulator 13,
The dimension from the cutting edge 4a to the abutting plate part 71 is the opening dimension shown in FIG. With that constant dimension, the opening dimension can be determined. In this case, since the stopper member 72 can change its vertical position, the distance MH of the abutment plate part 7 from the clamping body 2 can be varied, and the opening dimension can be changed.

Further, when forming the tapered surface portion 7 by performing so-called pencilling, the above-mentioned dimension regulating member 69, cutter cutting depth adjusting member 79 and guide member 19 shown in FIGS. 1 and 3,
use.

The guide member 19 consists of a pair of vertical rods 81, 81 and a horizontal rod 82 connecting the vertical rods 81, 81, and the lower end of the adjusting member 79 is fixed to the horizontal rod 82. It consists of a sloping rod. That is, the adjustment member 79 is inclined with respect to the vertical rods 81.81 at an angle θ1 that is the same as the taper angle θ of the tapered surface portion 7 (see FIG. 4), and the vertical rods 81.81 of the guide member 19 are respectively 9 through hole 21.21
The adjusting member 79 is inserted through the cable so that it can reciprocate along the cable axis direction, and the adjustment member 79 reciprocates along the cable l axis direction due to the reciprocating movement.

This adjusting member 79 is adjusted to the cutter 4 in a reciprocating state.
In other words, the adjustment member 79 is slidably inserted into the insertion hole 80 provided in the cutter receiver Fi51. Therefore, if the adjustment member 79 reciprocates, and the cutter receiving plate 51 is in a free state, the cutter 4 reciprocates in a plane perpendicular to the cable axis direction as shown by the arrow, and the blade portion 52 cables
The amount of protrusion is changed.

The dimension regulating member 69 is also provided with a connecting piece 83 that connects the insertion cylinders 70 and 70, and the connecting piece 83 is provided with an insertion cylinder 84 into which the tip of the adjusting member 79 is inserted. ing. 85 is a reinforcing rib provided upright on the upper surface of the abutting plate portion 71 and the connecting plate portion 76.

Therefore, in order to form the tapered surface portion 7, as shown in FIG.
As shown in FIG.
, 38, the opening portion 30 is first cut, and then the regulating member 69 is removed from the connecting rods 38, 38, and the vertical rods 81, 81 of the guide member 19 are attached to the frame 9.
At the same time, the vertical rod 81.81 is inserted into the insertion cylinder 70.70 of the regulating member 69, and the fixing member 74 is tightened to make the keyaki shown in FIG. 8(n). The regulating member 69 is attached to the guide member 19. Note that in this case, the adjustment member 79 is inserted into the insertion cylinder 84. In this state, if the operator grips the handle 8.8 and rotates the tool in the direction of arrow X as shown in FIG. 9, the insulator 3 will be removed. Cutter receiving plate 5
is in a free state, the cutter 4 escapes in the outer radial direction in accordance with the inclination angle θ1 of the adjustment member 79, and the tapered surface portion 7
is formed. That is, in the state where the formation of the tapered surface portion 7 has started,
As shown in Fig. 1θ (+), the cutter holder 1 of the cutter 4
The protruding dimension from 7 is Yl, and when the tapered surface portion 7 is completed, the receiving plate 51 slides by a dimension 2 in the direction of the arrow, as shown in FIG. 10 (ff), and the protruding dimension is Y2.
It is said that Note that Z and Yl have the same dimensions.

However, when penciling is performed, the guide member 1
The horizontal rod 82 of No. 9 is inserted into the recess 34 until it abuts the upper end of the recess 34 of the mounting frame 16. In other words, the penciling process can be performed until the horizontal rod 82 abuts the upper end of the recess 34. Then, the length L2 of the tapered surface portion 7 is determined.

Therefore, by sequentially carrying out the operations shown in FIGS. 8(1) to 8(DI) using this tool, cutting and penciling can be performed. That is, the insulator 3 is as shown in FIG.
Cutting is performed in the radial direction at the cutting edge 4a, and N@, at the cutting edge 4b.
The inner circumferential surface of the edge body 3 is cut in the axial direction, and the cut pieces 90 are continuously formed in the shape of a ring.

Next, FIG. 12 shows a modification of the connecting portion 75 of the dimension regulating member 69, in which a scale 86 is provided on the screw rod 75, and the scale 86 is provided on the threaded rod 75.
6 is set so that the lead-out dimension L1 can be determined. That is, a notch 87 is formed in the threaded rod 75 along the longitudinal direction, and a scale 86 is carved in the notch 87 along the longitudinal direction. 78 to the threaded rod 86, the distance H from the abutment plate part 71 to the clamping body 2 becomes a predetermined distance,
The opening dimension is determined to be a predetermined dimension.

Therefore, in the embodiment, the frame body 9. Since IO is made of a hollow body, it has the advantage of being lightweight and easy to operate.

Note that the present invention is not limited to the above-described embodiments, and the design may be changed without departing from the gist of the present invention. Of course, it is installed in
The adjustment member 79 may be attached indirectly through another member or directly or indirectly to the adjustment member 79.
It is also free to attach it directly or indirectly to the guide member 19. In addition, the mounting frame 1 of the handle 8 of the frame body 9
6 is provided with a recess 34, but this is to prevent the reciprocating movement of the horizontal rod 82 of the guide member 19 from being obstructed. Even if the lower wall 33 of the mounting rod 16 is flat, the horizontal rod 82 does not come into contact with the mounting rod 16 during the penciling operation, so there is no need to form such a recess 34.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

By fixing the cutter 4 and attaching the dimension regulating member 69 to the clamping body 2 and rotating the clamping body 2, the opening portion 30 is formed, and the cutter can be reciprocated by attaching and replacing the regulating member 69. Since the tapered surface portion 7 can be formed by rotating the holding body 2 in a state where the opening portion 30 is Switching between the cutting state and the cutting state of the tapered surface portion 7 can be done by simply replacing the dimension regulating member 69, so it can be done extremely easily and quickly, and the workability is good. distance MII
Since it can be made variable, the opening dimension can be adjusted.

can be modified to various length dimensions, making it useful.

Furthermore, when cutting, it is only necessary to hold the handle and rotate the holding body 2, so the work is less burdensome for the operator.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a plan view with the dimension regulating member, cutter cutting depth adjusting member and guide member removed, and FIG. 3 is a side view. Figure 4 is an enlarged front view of the cable after cutting, Figure 5 is the same plan view, and Figure 6 is the second cable.
Figure 7 is an enlarged cross-sectional view taken along the line A-A in the figure, Figure 7 is an enlarged cross-sectional view taken along B-Bl in Figure 2, Figure 8 is a work process diagram, Figure 9 is a plan view showing the state of use, Figure 10 is the main part. A plan view, FIG. 11 is an enlarged sectional view of the cable in a cut state, and FIG. 12 is an enlarged front view of the main part showing a modification of the dimension regulating member. l...cable, la...cable end face, 2...
Holding body, 3... Insulator, 4... Cutter, 7... Tapered surface portion, 19... Guide member, 69... Dimension regulating member, 71... Contact plate portion, 79...・Cutter cutting depth adjustment member, L,...output dimension. Patent applicant: Mitsubishi Cable Industries, Ltd. (III)

Claims (1)

[Claims] 1. A clamping body with a handle that clamps a cable, and a clamping body that can be fixed to the clamping body and can be reciprocated in the radial direction of the cable, so that rotation of the clamping body about the axis of the cable causes the cable to be moved. a cutter for cutting an insulator; a cutter cutting depth adjusting member that is slidably coupled to the cutter in a reciprocating state and that reciprocates the cutter in the cable radial direction by reciprocating in the cable axis direction; A cable end cutting tool comprising: a guide member that reciprocally guides the adjusting member along the cable axis direction, the abutting plate part coming into contact with the cable end surface to determine the cable outlet dimension. A dimension regulating member is removably attached to the clamping body so that the distance of the corresponding contact plate from the clamping body is variable,
In addition, in the tapered surface part cutting state, the dimension regulating member is attached directly or indirectly to the guide member and/or the adjusting member, and the cutter moves in the cable radial direction while the corresponding contact plate is in contact with the cable end face. A cable end cutting tool characterized by being configured to.