JP5472954B1 - Terminal peeling device - Google Patents

Abstract

Provided is a terminal stripping device that can strip a coating without applying force when stripping the coating of the coated wire, and reduces the labor of an operator and does not cause a stripping failure. .
An exfoliator having a cutting blade in which an insertion hole 21 for inserting a terminal side of a covered wire 10 is formed, and a cutting edge is set so as to bite the blade edge into the covering of the covered wire 10 inserted into the insertion hole 21. A main body 2, a power transmission unit 4 that is connected to the stripper body 2 and transmits power for rotationally driving the stripper body 2, and an axial center is aligned with the power transmission unit 4 so as to be relatively rotatable. And a covered wire pressing mechanism 5 that constantly presses the covered wire 10 inserted into the insertion hole 21 of the stripper body 2 toward the insertion direction.
[Selection] Figure 4

Description

  The present invention relates to a terminal stripping device used for stripping the insulation coating on the terminal side of a coated wire, and more particularly to a terminal stripping device used for stripping the insulation coating of a coated wire by a manual rotation operation.

  As a terminal peeling apparatus for peeling off the insulation coating on the terminal side of the coated wire from the core wire by manual rotation operation, a device as shown in Patent Document 1 described below is known. However, for example, in the case of reconnecting after cutting the edge portion of the high-voltage underline in the transformer suspending operation, when performing the operation of removing the covering of the cut-off line on the power supply side, Patent Document 1 Since the terminal peeling apparatus as shown cannot be used as it is, the terminal peeling apparatus 1 for indirect hot-line work as shown in FIG. 5 is used.

This is constituted by a stripper main body 2 for inserting the terminal side of the covered wire, and a power transmission unit 4 connected to the stripper main body 2 and to which an operation rod is attached. The main body 2 is formed in a columnar shape, and an insertion hole 21 having a diameter into which the distal end side of the covered wire can be inserted and a lead-out hole 22 having a diameter for leading out only the core wire are continuously formed in the axial direction. A chip 23 is formed between the lead hole 21 and the lead-out hole 22, and a cutting edge 23 is formed on the inclined wall surface of the chip removing notch 23 so as to protrude into the insertion hole. The blade 24 is fixed.
Therefore, by rotating the stripper body 2 against the inserted coated wire while pressing the stripper body 2 in the axial direction against the coated wire, the coating of the coated wire is stripped by the cutting blade 24 so that the core wire is exposed. It has become.
Reference numeral 26 denotes a stopper member that abuts the tip of the core wire exposed by peeling off the coating and regulates the length of the core wire to a predetermined length.

  The power transmission unit 4 is formed in a cylindrical shape that is sheathed on the end of the stripper body 2 opposite to the coated wire insertion side, and the lock pin 41 provided on the outer peripheral surface is attached to the stripper body. It is possible to rotate integrally with the stripper main body 2 by engaging with an engagement hole 27 provided in the peripheral wall 2. At the base end portion of the power transmission portion 4, a connecting portion 42 to which the tip end portion of the operating rod can be connected is formed. By connecting the tip end portion of the operating rod to the connecting portion 42, the operating rod rotates. The power is transmitted to the stripper main body 2 via the power transmission unit 4.

  Therefore, in order to peel off the coating on the terminal side of the covered wire using such a terminal stripping device 1, the connecting portion 42 of the power transmission unit 4 of the terminal stripping device 1 is connected to the tip of the operating rod 3. 6, one of the workers grips the vicinity of the end portion of the covered wire 10 with the indirect hot wire tool 11 such as a quick, and the axis of the covered wire 10 becomes the axis of the indirect hot wire tool 11. The terminal peeling apparatus 1 is held so as to be substantially perpendicular to the other, and another operator holds the operation rod 3 so that the axis of the covered wire 10 and the axis of the stripper main body 2 coincide with each other. In this state, the covered wire 10 and the terminal stripping device 1 are brought close to each other, and the tip end portion of the coated wire 10 is inserted into the insertion hole 21 of the stripper body 2 of the terminal stripping device 1, and the inserted While maintaining the state, the operating rod 3 is pressed toward the covered wire 10 (or the covered wire) While pressing the 0 to peel body 2), to rotate the operating rod 3 rotates the peeling body 2, stripping the coating of the covered wire 10 by the cutting edge 24. The exposed core wire is fed into the lead-out hole 22, but when the length reaches a predetermined length, the core wire comes into contact with the stopper member 26. Therefore, the coated wire 10 is peeled off after obtaining a feeling that the core wire contacts the stopper member 26. When pulled out from the main body 2 (if the operating rod 3 is moved away from the covered wire 10), the stripping operation of the covered wire 10 is completed.

JP 2000-102131 A

  However, in such a conventional terminal stripping device, the coated wire and the terminal stripping device are pressed against each other with the axis of the terminal stripping device aligned with the coated wire from which the coating is stripped. Otherwise, the coating cannot be removed successfully. In particular, the worker supporting the covered wire and the worker supporting the operating rod need to approach from 90 degrees different directions, so the stripping work must be performed in an unreasonable working posture. The physical strength was consumed, and the peeling force of the coating was inferior (the inconvenience that the peeling was not completely completed) due to the pressing force applied by the operator.

  The present invention has been made in view of such circumstances, and during the stripping operation of the coated wire, it is possible to strip the coating without pressing in the axial direction, thereby reducing the labor of the operator. The main object is to provide a terminal peeling apparatus that reduces and does not cause poor peeling.

  In order to achieve the above object, the terminal peeling apparatus according to the present invention is provided with an insertion hole for inserting the terminal side of the covered wire, and the cutting edge is bite into the covering of the covered wire inserted into the insertion hole. A stripper body provided with a cutting blade and an operating rod can be mounted, and the axis of the covered wire connected to the stripper body and inserted into the insertion hole of the stripper body is the center of rotation. A power transmission unit that transmits power for rotationally driving the stripper body, and the stripper body or the power transmission unit are attached so as to be relatively rotatable with their axes aligned with each other, and insertion of the stripper body And a covered wire pressing mechanism that constantly presses the covered wire inserted into the hole in the insertion direction.

  Therefore, since the covered wire inserted into the insertion hole of the stripper main body is constantly pressed in the insertion direction into the insertion hole by the covered wire pressing mechanism, the operator does not press the coated wire toward the stripper main body. (The stripper body does not have to be pressed against the coated wire.) If the stripper body is rotated by rotating the operating rod attached to the power transmission unit, the coated wire coating is cut. It will be peeled off by the blade.

  Here, the covered wire pressing mechanism is engaged with the stripper main body or the power transmission portion so as to be relatively rotatable, and extends to the insertion side of the covered wire, and insertion of the covered wire of the outer cover body A chuck portion that is provided on the side and is attached so as to be able to advance and retreat in the insertion direction of the covered wire, and includes a biasing means that constantly biases the chuck portion in a direction approaching the exterior body. It is good to do.

  According to such a configuration, since the covered wire is sandwiched and fixed by the chuck portion, it is not necessary for the operator to hold the covered wire, and the work labor can be reduced. In addition, since the chuck portion is constantly urged toward the exterior body by the urging means, the operator does not need to press the coated wire against the stripper body, and only by rotating the stripper body, The covering of the covered wire inserted into the insertion hole is peeled off.

  A lock mechanism is provided to lock the chuck part in a state where it is away from the exterior body, and to release the locked state when the stripper body rotates, so that the chuck part can be easily attached to the covered wire. May be.

  Further, the chuck portion is provided with a through-hole through which the covered wire can be inserted, and a plurality of holdings that are always urged in a direction protruding into the inside of the through-hole while being provided so as to protrude inside the through-hole. It is good also as a structure which comprises a piece and the operation lever which act | operates smallly the protrusion amount to the inner side of the said through-hole of these holding | maintenance pieces.

  As described above, according to the present invention, the coated wire inserted into the insertion hole of the stripper body is always pressed in the insertion direction against the stripper body or the power transmission unit connected to the stripper body. Since the covering wire pressing mechanism is provided, the covering can be peeled off by rotating the stripper body without applying a force in the axial direction. For this reason, it becomes possible to reduce work labor, and it becomes possible to avoid the inconvenience that a peeling defect occurs due to the pressing force of the operator while reducing the wear of the worker.

  In particular, the sheathed wire pressing mechanism is provided on the stripping body main body or the power transmission section so as to be relatively rotatable, and the sheathed wire insertion side of the sheathing body can be advanced and retracted in the sheathed wire insertion direction. In the case where it is configured to have a chuck portion that is attached to and fixedly clamps the covered wire and an urging means that constantly urges the chuck portion in a direction approaching the exterior body, the covered wire is clamped and fixed by the chuck portion. Therefore, the operator does not need to hold the covered wire, and the worker's work labor can be further reduced.

It is easy to attach the chuck part to the covered wire by providing a lock mechanism that locks the chuck part away from the exterior body and releases the locked state when the stripper body rotates. Can be done.
Further, the chuck portion is provided with a through hole through which the covered wire can be inserted, and a plurality of holding pieces which are provided so as to be able to protrude inside the through hole and are always urged in a direction protruding into the inside of the through hole, By operating the operation lever with an indirect hot wire gripping tool such as an insulating jacket, etc., by comprising an operation lever that operates to reduce the amount of protrusion of the plurality of holding pieces to the inside of the through hole. The chuck part can be easily attached to the coated wire.

1A and 1B are diagrams showing components of a terminal peeling apparatus according to the present invention, in which FIG. 1A is a plan view thereof, and FIG. 1B is a side view thereof. FIG. 2 is a cross-sectional view showing the terminal peeling apparatus according to the present invention, and FIG. 2A is a view showing a state where the chuck portion is closest to the exterior body (a state where the tension spring is most contracted as an urging means). (B) is a figure which shows the locked state by a locking mechanism, separating a chuck | zipper part from an exterior body. 3A and 3B are diagrams showing the chuck portion, where FIG. 3A is a diagram showing a state where the operation lever is not operated, and FIG. 3B is a diagram showing a state where the operation lever is operated (gripped with an insulating jacket). FIG. FIG. 4 is a view for explaining the procedure for stripping the covered wire using the terminal peeling apparatus according to the present invention, and (a) shows a state before the covered wire is inserted into the stripper body. It is a figure, (b) is a figure which shows the state which inserted the covering wire in the stripper main body, (c) shows the state which rotates a stripper main body and strips the coating | cover of a covering wire. FIG. FIG. 5 is a diagram showing components of a conventional terminal peeling apparatus, where (a) is a plan view thereof and (b) is a side view thereof. FIG. 6 is a view for explaining the procedure for stripping the covered wire using the conventional terminal peeling apparatus shown in FIG. 5, and (a) is a state before the covered wire is inserted into the stripper body. (B) is a figure which shows the state which rotates a stripper main body and strips the coating | coated of a covered wire.

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

In FIG. 1, the structural example of the terminal peeling apparatus which concerns on this invention is shown.
The terminal peeling apparatus 1 includes a stripper main body 2 that inserts a coated wire and strips the coating, and a power that is connected to the stripper main body 2 and transmits rotational power from the operation rod 3 to the stripper main body 2. The power transmission unit 4 includes a transmission unit 4 and a coated wire pressing mechanism 5 that presses a coated wire that is attached to the power transmission unit 4 and is inserted into the stripper body 2 in the insertion direction.

  As shown in FIG. 2, the stripper main body 2 is formed in a cylindrical shape, and has an insertion hole 21 having a diameter into which the end side of the covered wire can be inserted, and a diameter from which only the core wire is led out. The lead-out hole 22 is continuously formed in the axial direction, and a notch 23 for taking out chips that is cut out obliquely is formed on the outlet side of the insertion hole 21, that is, between the insertion hole 21 and the lead-out hole 22. Has been. On the inclined wall surface of the chip takeout notch 23, the cutting edge was installed so as to bite into the covering of the covered wire inserted into the insertion hole 21 (disposed so that the cutting edge protrudes into the insertion hole). ) The cutting blade 24 is fixed, and the covering wire is covered with the cutting blade 24 by rotating the stripper body 2 relative to the covering wire inserted into the insertion hole 21 while pressing the stripper body 2 in the axial direction. The peeled and exposed core wire is sent out to the outlet hole 22, and the scraped coating chips are discharged from the notch 23 for chip removal.

  Further, the lead-out hole 22 of the stripper main body 2 communicates with a stopper accommodating space 25 provided on the base end side thereof. The stopper accommodating space 25 extends from the base end of the stripper main body 2 (the end opposite to the insertion side of the covered wire), and the stopper accommodating space 25 is circular in the axial direction from the opening of the base end. A columnar stopper member 26 is inserted. The core wire exposed by stripping the coating with the cutting blade 24 is sent to the base end side (the side opposite to the side where the coating wire is inserted) of the stripper main body 2 through the lead-out hole 22, but its tip The length of the core wire exposed by contacting the stopper member 26 is regulated to a predetermined length.

  The power transmission unit 4 is formed in a cylindrical shape that is externally mounted on the end of the stripper body 2 opposite to the covered wire insertion side, and has an inner diameter on the base end side of the stripper body 2. The lock pin 41 formed on the outer peripheral surface is slightly larger than the outer diameter, and is engaged with the engagement hole 27 provided on the peripheral wall of the stripper body 2 to be connected to the stripper body 2 and peel off. It moves in unison with the collector body 2.

  A connecting portion 42 to which the distal end portion 31 of the operating rod 3 can be connected is formed at the base end portion of the power transmission portion 4. The connecting portion 42 has a structure known per se, and is formed in a cylindrical shape into which the distal end portion 31 of the operating rod 3 can be inserted. A side wall of the connecting portion 42 projects radially from the peripheral surface of the distal end portion 31. A substantially T-shaped guide groove 43a for introducing the pair of locking pins 32 is formed, and a locking recess 43b for twist-locking the locking pin 32 is formed at the end of the guide groove 43a. ing. Therefore, the operating rod 3 transmits power by inserting the distal end portion 31 of the operating rod 3 into the connecting portion 42 of the power transmission portion 4 and inserting the locking pin 32 into the guide groove 43a and locking it in the locking recess 43b. The rotating motion of the operation rod 3 is transmitted to the stripper body 2 through the power transmission unit 4.

  Further, the power transmission portion 4 has an outer surface of the covered wire pressing mechanism 5 described below on the outer peripheral surface of the tip side (the side opposite to the side where the connecting portion 42 is provided) from the portion where the lock pin 41 is provided. An annular engaging groove 44 in which a locking pin 51 provided on the body 50 is slidably locked is formed.

  In this example, the covered wire pressing mechanism 5 is engaged with the power transmission unit 4 so as to be relatively rotatable and extended to the covered wire insertion side, and on the inserted wire insertion side of the covered body 50. A chuck portion 60 which is provided and attached so as to be able to advance and retreat in the insertion direction of the covered wire and which sandwiches and fixes the covered wire; and an urging means which constantly urges the chuck portion 60 in the direction approaching the exterior body 50 Configured.

  The exterior body 50 is configured in a cylindrical shape whose inner diameter is slightly larger than the outer diameter of the power transmission portion 4, and a locking pin 51 is provided on the peripheral wall of the base end portion. The pin 51 is slidably engaged with the engaging groove 44 of the power transmission unit 4 so as to be relatively rotatable with respect to the power transmission unit 4. In this example, in order to ensure a stable connection state, the locking pins 51 are provided at two positions shifted by 180 phases.

  Further, the distal end side of the exterior body 50 is extended to the distal end side with respect to the distal end of the stripper main body 2, and a guide hole 52 for inserting a rod 62 of the chuck portion 60 described later is formed in the peripheral wall on the distal end side. Has been. The guide holes 52 are open at the distal end and closed at the proximal end. In this example, the guide holes 52 are provided at four locations at intervals of 90 degrees in the circumferential direction.

  The chuck portion 60 extends from the vicinity of the periphery of the chuck body 61 toward the exterior body 50 and is slidably inserted into the guide hole 52 of the exterior body 50. Rod 62.

  As shown in FIG. 3, the chuck body 61 of the chuck portion 60 is provided with a through hole 63 through which a covered wire can be inserted, and can be protruded inside the through hole 63, and is always urged in the protruding direction. The plurality of holding pieces 64 and a pair of operation levers 65 that are operated so as to reduce the protruding amount of the plurality of holding pieces 64 into the through holes 63 are provided.

  A tension spring 70 is accommodated in the guide hole 52, one end of the tension spring 70 is fixed to the terminal portion of the guide hole 52, and the other end is a rod 62 of the chuck portion 60 inserted into the guide hole 52. It is fixed to the tip of the. Therefore, the tension spring 70 constitutes a biasing means that constantly biases the chuck portion 60 (chuck main body 61) in the direction of approaching the exterior body 50.

  Further, at least one rod 62 of the chuck portion 60 is locked in a state where the chuck portion 60 is away from the exterior body 50, and the lock state is released when the stripper body 2 rotates. Is provided.

  In this example, the locking mechanism is provided with a protrusion 55 urged so as to protrude inwardly on a side surface directed to the inside of the rod 62, and a tongue piece 56 that can be bent is provided on the inner peripheral surface of the exterior body 50. A notch 67 is formed, and when the protrusion 55 reaches the notch 67, the protrusion 55 projects and locks into the notch 67 so as to face the tongue piece 56. A protrusion 28 is formed on the outer peripheral surface of the tip of the stripper body 2 so as to be able to contact the bent tongue piece 56, and the stripper body 2 is rotated so that the protrusion 28 contacts the tongue piece 56. Thus, the protrusion 55 locked to the notch 67 is pushed back, the locked state is released, and the rod 62 is moved into the guide hole 52 by the tension spring 70.

  In the above configuration, in order to perform the work of stripping the coating on the terminal side of the coated wire 10 using the terminal stripping device 1 described above, first, the power transmission unit 4 is mounted on the base end of the stripper body 2. Then, the stripper body 2 and the power transmission unit 4 are connected by engaging the lock pin 41 with the engagement hole 27. Further, the exterior body 50 is sheathed at the tip of the power transmission unit 4 so as to cover the stripper main body 2, and the locking pin 51 is latched in the engagement groove 44, so that the exterior body 50 is relative to the power transmission unit 4. After being attached so as to be rotatable, the distal end portion 31 of the operating rod 3 is connected to the connecting portion 42 of the power transmission portion 4.

  Then, the chuck portion 60 is moved in the axial direction so as to be separated from the exterior body 50, the protrusion 55 is engaged with the notch 67 with the tension spring 70 extended, and the chuck portion 60 is separated from the exterior body 50. Keep it.

With the terminal skinning device 1 set in this way, as shown in FIG. 4A, one of the workers grasps the vicinity of the terminal portion of the covered wire 10 with an indirect hot wire tool 11 such as a quick cover, and covers it. The line 10 is held so that its axis is substantially perpendicular to the axis of the indirect live tool 11. Further, another operator holds the operation rod 3, aligns the axis of the terminal peeling apparatus 1 with the axis of the covered wire 10, and causes the chuck portion 60 to face the end of the covered wire 10. In this state, an operator holding the covered wire 10 or an operator holding the operation rod 3 grips the operation lever 65 of the chuck unit 60 by using an indirect hot wire tool such as an insulated Yatco, etc. The through hole 63 is opened wide (the protruding amount of the holding piece 64 to the through hole 63 is reduced), and an operator holding the covered wire 10 in this state inserts the covered wire 10 into the through hole 63 of the chuck portion 60. And is inserted into the insertion hole 21 of the stripper main body 2. In this state, the gripping state of the operation lever 65 of the chuck portion 60 is released, and the covered wire 10 is clamped and fixed by the chuck portion 60.
At this stage, since the covered wire 10 is inserted into the stripper main body 2 and held by the chuck portion 60, the indirect hot wire tool 11 supporting the covered wire 10 may be removed. .

  And if the operator who has the operating rod 3 rotates the operating rod 3, the rotational power will be transmitted to the stripper main body 2 via the power transmission part 4, and the stripper main body 2 will rotate. It will be. At this time, the exterior body 50 is attached to the power transmission unit 4 so as to be relatively rotatable, and since the covered wire 10 is fixed by the chuck unit 60, the operation rod 3 (stripping device body 2) rotates. Even if the outer casing 50 does not rotate, the protrusion 28 formed on the outer peripheral surface of the stripper main body 2 abuts on the tongue piece 56 of the outer casing 50 as the stripper main body 2 rotates. When the locked state of the portion 60 is released, the chuck portion 60 is urged toward the exterior body 50 by the tension spring 70 attached to the tip end portion of the rod 62, and the covered wire 10 is inserted into the stripper body 2. It will always be pressed in the direction.

  For this reason, if the operating rod 3 is rotated without pressing the operating rod 3 toward the covered wire 10, the covering material of the covered wire 10 can be peeled off by the cutting blade 24, and the exposed core wire is derived. It is inserted into the hole 22. Then, after obtaining a feeling that the exposed core wire is in contact with the stopper member 26, the operation lever 65 of the chuck portion 60 is gripped to release the sandwiched state of the covered wire 10 by the chuck portion 60, thereby covering the terminal peeling apparatus 1. If the wire 10 is removed, the stripping operation of the end of the covered wire 10 is completed.

Therefore, in the stripping operation of the terminal of the coated wire 10, it is not necessary to hold the coated wire 10, and it is possible to strip the coating without applying force in the axial direction. It is possible to reduce the wear of the worker's physical strength, and to avoid the inconvenience (the inconvenience that the peeling failure occurs) that is not completely removed due to the pressing force of the operator.
In addition, since the lock mechanism that can lock the chuck portion 60 in a state where it is away from the outer package 50 is provided, the chuck portion 60 can be easily attached to the covered wire 10.

  In addition, in the structure mentioned above, although the structure which attached the exterior body 50 to the power transmission part 4 was shown, even if it attaches the exterior body 50 to the stripper main body 2 so that relative rotation is possible, the same effect is obtained. Can be obtained.

DESCRIPTION OF SYMBOLS 1 Terminal stripping apparatus 2 Stripper main body 3 Operation rod 4 Power transmission part 5 Covered wire press mechanism 10 Covered wire 21 Insertion hole 24 Cutting blade 50 Exterior body 60 Chuck part 64 Holding piece 65 Operation lever 70 Pull spring

Claims (4)

An exfoliator body provided with an insertion hole for inserting the terminal side of the covered wire, and a cutting blade installed so as to bite the blade edge into the covering of the covered wire inserted into the insertion hole;
An operating rod can be mounted, and the power for driving the stripper body to rotate is transmitted about the axis of the coated wire connected to the stripper body and inserted into the insertion hole of the stripper body. A power transmission unit;
A sheath that is attached to the stripper body or the power transmission unit so as to be relatively rotatable with its axial center aligned, and that constantly presses the coated wire inserted into the insertion hole of the stripper body toward the insertion direction. A terminal peeling apparatus comprising a wire pressing mechanism. The covered wire pressing mechanism is
An exterior body that is engaged with the stripper main body or the power transmission portion so as to be relatively rotatable and extends to the insertion side of the covered wire;
A chuck portion that is provided on an insertion side of the covered wire of the exterior body and is attached so as to be able to advance and retreat in the insertion direction of the covered wire;
The terminal peeling apparatus according to claim 1, further comprising: an urging unit that constantly urges the chuck portion in a direction approaching the exterior body.   The terminal peeling apparatus according to claim 2, further comprising: a lock mechanism that locks the chuck portion in a state where the chuck portion is away from the exterior body and releases the locked state when the stripper body rotates. .   The chuck portion is provided with a through-hole through which the covered wire can be inserted, and a plurality of holding pieces that are provided so as to protrude inside the through-hole and are always urged in a direction protruding into the inside of the through-hole. The terminal peeling apparatus according to claim 2, further comprising an operation lever that is operated so as to reduce a protruding amount of the plurality of holding pieces to the inside of the through hole.

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