JPH02179208A - Cable terminal-cutting tool - Google Patents

Abstract

PURPOSE:To enable a cable insulation to be subjected to cutting by merely applying a simple and light force thereto through holding a cable provided with a lead wire and with an end face in contact with the contact plate of a sizing member by using a nipper body and through reciprocating a cutter in the radial direction of said cable. CONSTITUTION:In a state where a cable provided with a lead wire and with an end face in contact with the contact member 71 of a sizing member 69 is held by a nipper body 2 and a cutter 4 can be reciprocated in the radial direction of said cable and an adjusting member 79 for the depth of cut by said cutter is combined with the cutter 4, said nipper body 2 is rotated by handles 8, 8 held by hand and then the cutter 4 retreats according to an inclination theta1 of said adjusting member 79 so that a tapered face part having a tapered face at the same angle theta as said inclination theta1 is formed easily. At the time of cutting in this manner, it is sufficient to rotate the nipper body 2 by holding said handles 8, 8 in hand, thereby enabling lightening a worker's burden.

Description

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

[Prior art and problems to be solved] Generally, when connecting a cable such as a C■ cable, the cable is made of a conductor, an inner semiconducting layer, an insulator such as cross-linked polyethylene, an outer semiconducting layer, a shielding layer, The conductor at the end was first exposed and then the insulator was scraped off into a pencil shape, a so-called penciling process.

The tool for performing this penciling is a so-called manual pencil, which is 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 something in the shape of a cut.

Therefore, such a device requires a considerable rotational torque and is difficult for the operator to perform the work.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a cable end cutting tool that can simply and quickly cut a cable insulator simply by applying a light force.

[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 attached to the clamping body to insulate the cable by rotating the clamping body around the cable axis. A cutter for cutting the body of the cable; a cutter holder for holding the cutter so that the cutter can be fixed to a clamping body and movable back and forth in the radial direction of the cable; a cutter cutting depth adjusting member that is inclined at a predetermined angle with respect to the cutter, is slidably coupled to the cutter, and reciprocates along the cable axis direction to reciprocate the cutter in the cable radial direction; a guide member that reciprocally guides the adjustment member along the cable axis direction; and a guide member that guides the adjustment member so as to be able to reciprocate along the cable axis direction; and a guide member that is directly or and a dimension regulating member that is indirectly fixed to the cutter and moves the cutter in the radial direction of the cable while the abutment plate abuts the end face of the cable when the tapered surface is being cut.

[Effect]

The cutter is allowed to reciprocate in the radial direction of the cable, and the cutter is allowed to reciprocate in the radial direction of the cable while the end surface of the cable is in contact with the abutting plate of the dimension regulating member. The cutting depth adjusting member is in a state coupled to the cutter.

Therefore, in this state, if the guide member reciprocates along the cable axis direction, the adjustment member reciprocates in the axial direction.
The cutter reciprocates in the radial direction of the cable.

Then, with the abutment plate in contact with the cable end face, grip the handle and rotate the clamping body so that the cable protrudes to the side of the abutment plate, and the cable end face will come into contact with the end face of the cable one after another. The cable insulator is cut while coming into contact with the contact plate part, but in this case, the cutter is retracted in accordance with the inclination angle of the adjustment member, and a tapered surface part is 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 cable 1 (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 rotating the clamping body 2 about the axis of the cable 1. There is.

Here, the cable l is, for example, a Cv cable, which includes a conductor 5, an internal semiconducting layer 6 covering the conductor 5, and a semiconducting layer 6, as shown in FIGS. It consists of an insulator 3 to be covered, and an external semiconducting layer (not shown), a shielding layer, a sheath, etc., which sequentially cover the insulator 3.

That is, this tool is for stripping off the imaginary portion shown in FIG. , it is not peeled off, but is peeled off with a knife etc. after grinding.

Thus, the clamping body 2 includes a pair of handle-equipped frames 9.10 on which a rotating operation handle 8 is protruded, and a plurality of parallel movement guides that hold the frames 9.10 so that they can approach and separate from each other. It consists of a guide rod 11... and an interval adjustment mechanism 12 that adjusts and maintains the dimension S between the frame bodies 9° and 10 to a dimension corresponding to the outer diameter dimension D of the insulator 3 of the cable l (see Fig. 4). .

Here, the frame body 9 refers to the upper and lower frames 13 made of hollow flat soft bodies.
．． 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 18 are provided) 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 freely inserted. That is, the insertion portion 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. In addition, the upper surface 2 of this upper frame 13
A cutter 4 is attached to the cutter 7 via a cutter holder 17.

In addition, when viewed from above, as shown in FIG. 2, the handle 8.
8 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 body 10 includes upper and lower frames 36.37 made of hollow flat plates disposed 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 detachably 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 1818 of the upper and lower frames 13.14 of the frame body 9, and a notch 42.42 is also formed at the inner end between the rollers 1818 of the upper and lower frames 13.14 of the frame body 9. 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.

As a result, the parallel movement guidance guide rods 11 are projected and retracted 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, if the frame 9 is fixed and the frame lO is reciprocated in the axial direction of the handle 8, the frame 10 will move in parallel along the guide rods 11 as indicated by arrows M and N. The rods 9 and 10 move toward and away from each other.

Next, the interval adjustment mechanism 12 is provided in the front and rear, and the frame body 9,
10 and a bolt rod 45 that interconnects the bolt rods 45;
A NAND 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 10. In other words, the nut member 46
, 10 in the direction of separation.

Therefore, the cable 1 is inserted between the frames 9 and 10, and the frame is held until the outer peripheral surface 3a of the insulator 3 of the cable 1 comes into contact with the rollers 1B, 40, etc., 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 comes into contact with the abutment piece 48, so that the spacing between the frames 9 and 10 can be 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 1
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 lO will be moved 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 has an elongated hole 53 extending therethrough, and a port 54 for attaching the cutter 4 to the cutter receiving plate 51 is inserted through the elongated hole 53.
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 the holder I7, and when the fixing member 57 is tightened, the tip thereof 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 adjusting 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 through the bolt member 4 is a threaded rod which is fixed to the upper frame 13 and protrudes from the upper surface 67 of the holder I7 through 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 l, and this angle
The radial cutting pitch is determined by

That is, the canter 4 is held by the cutter holder 17 in a manner that it can be fixed and can reciprocate 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 1,
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 screw rod 75 and the nut members 77, 78 can be moved as shown by the imaginary lines in FIG.
- The vertical position of the collar member 72 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 1 is held between the holding bodies 2, and the cutter 4 is fixed with the tip of the cutting edge 4a reaching the internal semiconductive layer 6, and in this state, the handle 8. 8 and rotate this tool in the direction of arrow X, the insulator 3 is scraped off in the radial direction at the cutting edge 4a, and in the axial direction at the cutting edge 4b. Then, the cable end surface 1a successively protrudes toward the contact plate portion 71 and comes into contact with the corresponding contact 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 the vertical position, the distance 1ii1tH of the abutting plate part 7 from the clamping body 2 can be changed, 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.

Thus, the guide member 19 consists of a pair of vertical rods 81.81 and a horizontal rod 82 that connects the vertical rods 81.81, and the lower end of the adjustment member 79 is fixed to the horizontal rod 82. It consists of a sloping rod. That is, the adjustment member 79 is inclined at a predetermined angle θl (the same angle as the taper angle θ of the tapered surface portion 7 (see FIG. 4)) with respect to the vertical rod 81.81 of the guide member 19. are respectively inserted into the through holes 21, 21 of the frame 9 so as to be able to reciprocate along the cable axis direction, and due to the reciprocating movement, the adjusting member 79 reciprocates along the cable 1 axis direction.

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 receiving plate 51. Therefore, if the adjustment member 79 reciprocates and the cutter receiving plate 51 is in a free state, the cutter 4
Due to the reciprocating motion, the blade portion 52 reciprocates in a plane perpendicular to the cable axis direction as shown by the arrow, and the amount of protrusion of the blade portion 52 relative to the cable 1 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 7I 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 rod 38.38, and the vertical rod 81.81 of the guide member 19 is inserted into the through hole 21.38 of the frame 9. 21 and the insertion cylinder 70 of the regulating member 69. The vertical rods 81.81 are inserted into the TO, the fasteners 74 are tightened, and the regulating member 69 is attached to the guide member L9 as shown in FIG. 8 (II). 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. Canter receiving plate 5
When the cutter 4 is in the free state, the cutter 4 escapes in the outer diameter direction in accordance with the inclination angle of the adjustment member 79, and the tapered surface portion 7 is formed. That is, in the state where the formation of the Taper surface portion 7 is started, the first
As shown in FIG. 0 (1), the protrusion dimension of the cutter 4 from the cutter holder 17 is Yl, and when the tapered surface portion 7 has been formed, the receiving plate 51 has a dimension as shown in FIG. 1θ (II). Z
, and its protruding dimension is Y2. Note that Z and Y 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. The length dimension Lx of the tapered surface portion 7 is determined.

Therefore, by using this tool and performing the operations shown in FIG.
The cutting edge 4a cuts the inner circumferential surface of the insulator 3 in the radial direction, and the cutting edge 4b cuts the inner circumferential surface of the insulator 3 in the axial direction, and the chips 90 are continuously formed into round slices.

Next, in the adjustment member 79 shown in FIG. 12, the inclination angle θ1 of the guide member 19 with respect to the vertical rod 81 can be changed, so that the inclination angle θ of the tapered surface portion 7 to be formed can be changed.

That is, in this case, the adjusting member 79 is connected to the horizontal rod 82 of the guide member 19 via the connecting member 86 so that the angle can be changed. Further, in this case, the horizontal rod 82 has a substantially rectangular cross-sectional shape, and the lower part of the adjustment member 79 is connected to the pivot pin 87.
are used as holding pieces 88, 88 which are inserted and fixed. Note that the holding piece portion 88 has a substantially rectangular cross-sectional shape.

Therefore, the connecting member 86 is connected to the adjusting member 79 and the horizontal rod 82.
a spacer 89 interposed between the spacer 89, a screw rod 91 inserted through the insertion hole 93 of the spacer 89 to the insertion hole 94 of the horizontal rod 82, and a screw nut 92 screwed into the screw rod 91;
The tip of the threaded rod 91 is a large diameter part 91a, and the large diameter part 91a is the holding piece part 8.
8. It is pivotally supported by the bin 87 while being interposed between 8 and 88. In other words, the adjustment member 79 is swingably supported by the screw rod 91 as shown by the arrow W. Further, the spacer 89 has an inclined surface 89a on the adjusting member 79 side, and the horizontal rod 8
The second side is a vertical surface 89b, and a screw rod 91 is removably inserted into the insertion hole.

Therefore, since the inclination angle θ1 of the adjustment member 79 is determined by the inclination angle of the inclined surface 89a of the spacer 89, 19
By aligning the spacers 89 whose slopes 89a have different inclination angles, the inclination angle θ1 of the adjusting member 79 can be variously changed by attaching the spacers 89, thereby changing the Taber angle θ of the Taber surface portion 7 to be formed. can do.

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. Further, as a mechanism for changing the inclination angle θ1 of the adjustment member 79, the vertical rod 8 of the guide member 19 is used.
There are various types as long as the inclination angle θ of the adjustment member 79 with respect to 1 can be changed. For example, the horizontal rod 82 is formed from a cylindrical body or a solid round bar, and the guide member 79 is fixed to the horizontal rod 82.
2 are connected to each other so as to be able to swing around their axis via a replaceable spacer, and the guide member 19 is connected to the guide member 19 by the spacer.
The inclination angle θ1 is determined. That is, by changing the spacer, the swing angle of the horizontal rod 82 is changed, and the inclination angle θ1 of the guide member 79 is changed.

〔Effect of the invention〕

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

The cutter 4 can be reciprocated in the radial direction of the cable while the cable 1 is held by the holding body 2 with the end face 1a of the cable 1 in contact with the abutting member 71 of the dimension regulating member 69. With the cutter cutting depth adjusting member 79 connected to the cutter 4, if the gripping body 2 is rotated by gripping the handle 8.8, the cutter 4
is retracted according to the inclination angle θ1 of the adjustment member 79, and the inclination angle θ is around 1.

A tapered surface portion 7 having a tapered surface having the same angle θ can be easily, quickly, and reliably formed. Further, when cutting, it is only necessary to grip the handle 8.8 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, FIG. 3 is a side view, and FIG. The figure is an enlarged front view of the cable after abrasion, Figure 5 is a plan view of the same, Figure 6 is an enlarged sectional view taken along the line A-A in Figure 2, and Figure 7 is an enlarged sectional view taken along the line B-B in Figure 2. , Fig. 8 is a work process diagram, Fig. 9 is a plan view showing the state of use, Fig. 10 is a plan view of the main part, Fig. 11 is an enlarged cross-sectional view of the cable in the cut state, and Fig. 12 is the deformation of the adjustment member. FIG. 13 is an enlarged front view of main parts showing an example, and is a view taken along arrow Q in FIG. 12. 1... Cable, 1a... Cable end face, 2...
Clamping body, 3... Insulator, 4... Cutter, 7... Taber surface portion, 17... Cutter holder, 19... Guide member, 69... Dimension regulating member, 71... Contact plate part, ...predetermined angle. 79...Cutter cutting depth adjustment member, θ1 Patent applicant Mitsubishi Cable Industries, Ltd. Figure 12 Figure 13 '3 (III)

Claims (1)

[Claims] 1. A clamping body with a handle that clamps a cable, and a cutter that is attached to the clamping body and cuts the insulation of the cable by rotating the clamping body around the axis of the cable. a cutter holder for holding the cutter so as to be fixable to the clamping body and capable of reciprocating in the radial direction of the cable; a cutter cutting depth adjusting member that is slidably coupled to the cutter and reciprocates along the cable axial direction to cause the cutter to reciprocate in the cable radial direction; a guide member that reciprocally guides the guide member along the cutter; and the adjustment member is directly or indirectly fixed to the guide member and/or the adjustment member while being slidably connected to the cutter, thereby cutting the tapered surface portion. A cable end cutting tool comprising: a dimension regulating member that moves the cutter in the radial direction of the cable while the abutting plate part is in contact with the cable end face in the state.