JP6565578B2 - Wire coating layer peeling device - Google Patents

Description

  The present invention relates to a coating layer peeling apparatus for electric wires.

  As a device for peeling off the coating layer at the tip of the electric wire among the coating layers having the insulating properties of the electric wires installed on the power pole, for example, a composite electric wire top for a wire covering peeling tool shown in Patent Document 1 is known. Yes.

Japanese Patent Laid-Open No. 10-14046

  The stopper for adjusting the peeling length of the coating layer at the tip of the electric wire is provided as an integral part inside the electric wire piece or as a separate part that can be attached to and detached from the outside of the electric wire piece. The stopper has a plate member with which the tip of the wire abuts so that the coating layer at the tip of the wire is not peeled any more when the coating layer at the tip of the wire is peeled by a preset length. Furthermore, the stopper is provided with a metal adjusting screw for adjusting the stop position of the plate member to any one of a plurality of positions along the insertion direction of the electric wire.

  When peeling off the coating layer at the tip of the electric wire, the metal blade provided on the electric wire piece comes into contact with the conductor surface of the electric wire, so that the electric wire piece itself is charged. Therefore, if the adjusting screw mistakenly contacts another conductive object during the work of peeling the coating layer at the tip of the electric wire, there is a risk of causing a ground fault blackout. Further, if the adjusting screw is accidentally caught by another conductive object during the operation of peeling the coating layer at the tip of the electric wire, there is a risk of causing a human injury.

  Then, an object of this invention is to provide the coating layer peeling apparatus of the electric wire which can suppress the exposure area of a charging part.

The main present invention for solving the above-described problem is that the coating layer peeling of the wire peels off the coating layer at the tip of the wire while rotating around the wire in a state where the wire laid on the utility pole is inserted from the tip. A device, a housing, a first insertion hole that is drilled from one end surface of the housing toward the other end surface and into which the electric wire is inserted from the tip, and the rotation of the housing A protrusion that protrudes in a spiral shape to the extent that it can press the coating layer of the wire from the inner peripheral surface of the first insertion hole so that the wire is automatically inserted into the first insertion hole; A blade body which is disposed adjacent to the first insertion hole along the insertion direction of the wire and peels off the coating layer at the tip of the electric wire, and the first insertion from the other end surface of the housing toward the one end surface. A second insertion hole penetrating through the hole and inserted into the second insertion hole. , Depending on the length to be separation of the coating layer at the tip of the electric wire, and a stopper to limit the length to be inserted in the wire, the stopper has a length to move inside the second insertion hole A movable member having a scale shape; a preventive member that prevents the movable member from coming out of the second insertion hole; and an operating member that operates the movable member, wherein the housing includes the second insertion member. A rotational force is transmitted from a frame receiver mounted so as to cover the moving member and the operation member exposed from the hole, and rotates.

  Other features of the present invention will become apparent from the accompanying drawings and the description of this specification.

  According to the present invention, since it becomes possible to suppress the exposed area of the charging part of the apparatus main body, it is possible to eliminate the inconvenience of causing a ground fault blackout accidentally during the work of peeling the coating layer at the tip of the electric wire. It becomes possible.

It is a side view which shows one state of the coating layer peeling apparatus which concerns on this embodiment. It is a side view which shows the other state of the coating layer peeling apparatus which concerns on this embodiment. It is a front view which shows the coating layer peeling apparatus which concerns on this embodiment. It is a rear view which shows the coating layer peeling apparatus which concerns on this embodiment. It is a perspective view which shows the stopper used for the coating layer peeling apparatus which concerns on this embodiment which concerns on this embodiment. It is a side view which shows the state with which the coating layer peeling apparatus of the one state which concerns on this embodiment was mounted | worn with the top receiver. It is a side view which shows the state with which the coating layer peeling apparatus of the other state which concerns on this embodiment was mounted | worn with the top frame receiver. It is a front view which shows the state with which the coating layer peeling apparatus which concerns on this embodiment was mounted | worn with the frame | top | piece receptacle. It is a figure which shows the state from which the coating layer of the electric wire was peeled.

  At least the following matters will become apparent from the description of this specification and the accompanying drawings.

=== Construction of electric wire top ===
FIG. 1 is a side view showing one state of the coating layer peeling apparatus according to the present embodiment. FIG. 2 is a side view showing another state of the coating layer peeling apparatus according to the present embodiment. FIG. 3 is a front view showing the coating layer peeling apparatus according to the present embodiment. FIG. 4 is a rear view showing the coating layer peeling apparatus according to this embodiment. FIG. 5 is a perspective view showing a stopper used in the coating layer peeling apparatus according to the present embodiment. The X axis is an axis along the direction in which the electric wire is inserted into the coating layer peeling apparatus, and the YZ plane formed from the Y axis and the Z axis is a surface along the cross section of the electric wire inserted into the coating layer peeling apparatus, That is, it is a surface along the cross section of the coating layer peeling apparatus.

  Hereinafter, the structure of the coating layer peeling apparatus according to the present embodiment will be described with reference to FIGS.

  The coating layer peeling apparatus 1 has a coating layer 30A having insulating properties at the tip of the electric wire 30 that becomes a connection point in the electric wire 30 installed on the utility pole when the connection between the electric wires or the connection with the branch electric wire is necessary. Is used to polish the exposed conductor surface 30B by further peeling the covering layer 30A. Hereinafter, the coating layer peeling apparatus 1 will be described as an electric wire piece 1.

  The electric wire piece 1 includes a housing 2, a first insertion hole 3, a blade body 4, a brush body 5, a second insertion hole 6, and a stopper 7, and is made of, for example, a stainless steel material.

  The housing 2 has, for example, a cylindrical shape. A first insertion hole 3 is formed on one side (−X side) of the housing 2, and a second insertion hole 6 is formed on the other side (+ X side) of the housing 2. A plurality of male screws inserted from the frame receiving side on the outer peripheral surface of the housing 2 on the second insertion hole 6 side so that the housing 2 is detachably attached to the frame receiving member described later. For example, four depressions 8 with which the tips of the two come into contact are formed. The four recesses 8 have, for example, a truncated cone shape, and are formed on the outer peripheral surface of the housing 2 along the YZ plane, for example, at regular intervals (90-degree intervals). Further, the housing 2 rotates around an axis in the longitudinal direction (direction along the X axis) according to the rotational force transmitted from the frame receiver.

  The first insertion hole 3 is a hole having a full length L1 into which the electric wire 30 is inserted when the covering layer 30A at the tip of the electric wire 30 is peeled off, and from the one end surface (−X side) of the housing 2 to the other end surface. It is drilled along the longitudinal direction of the housing 2 toward (+ X side). The first insertion hole 3 serves as an inlet on one end face side, and the guide 9 exhibits a shape that the inner peripheral surface expands toward one end face so that the electric wire 30 is surely introduced into the first insertion hole 3. have. Further, the first insertion hole 3 has a protrusion 10 having a spiral shape (female screw shape) on the inner peripheral surface on the other end face side adjacent to the guide 9. The protrusion 10 protrudes from the inner peripheral surface of the first insertion hole 3 to such an extent that the covering layer 30A of the electric wire 30 can be pressed. When the electric wire 30 is inserted into the first insertion hole 3, the tip of the electric wire 30 is in contact with the protrusion 10. Therefore, when the housing 2 is rotated thereafter, the covering layer 30 </ b> A of the electric wire 30 is formed on the protrusion 10. Since it is in the pressed state, the electric wire 30 will continue to be automatically inserted into the first insertion hole 3.

  The housing 2 has an opening 11 penetrating to the outer peripheral surface in a part of the inner peripheral surface having the protrusion 10. The blade body 4 is attached to the opening 11 so that the blade edge protrudes from the inner peripheral surface and the coating layer 30A of the electric wire 30 can be peeled off.

  The brush body 5 is a metal brush that polishes the conductor surface 30B of the electric wire 30 from which the coating layer 30A has been peeled off. The brush body 5 is the first of the inner peripheral surfaces of the first insertion holes 3 than the inner peripheral surface having the protrusions 10. 2 It is planted over the entire circumference of the inner peripheral surface on the insertion hole 6 side.

  The second insertion hole 6 is a hole having a total length L2 used when the length of the electric wire 30 inserted from the first insertion hole 3 is limited according to the length of the covering layer 30A to be peeled off at the tip of the electric wire 30. And it is drilled along the longitudinal direction of the housing 2 from the other end surface (+ X side) of the housing 2 toward one end surface (−X side). The second insertion hole 6 communicates with the first insertion hole 3 so as to face the brush body 5. That is, the first insertion hole 3 and the second insertion hole 6 are continuously formed so as to penetrate the end faces on both sides of the housing 2 along the longitudinal direction of the housing 2. The second insertion hole 6 has an inner diameter of D1 (first diameter) in one region (L21) on the side adjacent to the first insertion hole 3. The second insertion hole 6 has an inner diameter of D2 (second diameter) smaller than D1 in the other region (L22) on the side not adjacent to the first insertion hole 3. Therefore, the second insertion hole 6 is formed with a step surface 12 having a bowl shape at a position where the inner diameter changes from D1 to D2. A female screw 13 is formed on the inner peripheral surface of the other region (L22) of the second insertion hole 6.

  In order to limit the length of the electric wire 30 inserted from the first insertion hole 3, the stopper 7 is arranged along the longitudinal direction of the housing 2 in accordance with the length to be peeled off of the peeling layer at the tip of the electric wire 30. 2 A part that moves inside the insertion hole 6. The stopper 7 includes a moving member 7A, a preventing member 7B, and an operating member 7C, and is formed of, for example, a stainless steel material. The moving member 7A has a long cylindrical shape. The moving member 7A has a male screw 7D that engages with the female screw 13 of the second insertion hole 6 over the entire outer peripheral surface. The prevention member 7B has a short cylindrical shape. The prevention member 7B exists in one region (L21) of the second insertion hole 6 and has a diameter between D1 and D2. The prevention member 7B is coupled to the end surface of the moving member 7A on the first insertion hole 3 side (−X side), and prevents the moving member 7A from coming out of the second insertion hole 6. The prevention member 7B has a contact surface 7E having a planar shape with which the tip of the electric wire 30 after the conductor surface is polished is contacted on the first insertion hole 3 side, and is on the side opposite to the first insertion hole 3 (+ X A contact surface 7F having a hook shape that contacts the step surface 12. The operating member 7C has a short cylindrical shape. The operating member 7C exists outside the housing 2 and has a diameter larger than D2. The operating member 7C is coupled to the end surface of the moving member 7A opposite to the first insertion hole 3. Therefore, the operating member 7C functions as a knob that rotates around the central axis of the moving member 7A. The operation member 7 </ b> C has an outer peripheral surface 7 </ b> G that has been subjected to, for example, texturing so that the operator can easily operate it.

  When the operator picks up the operation member 7C and rotates it in one direction (counterclockwise direction indicated by the white arrow in FIG. 4), the male screw 7D is screwed with the female screw 13, so that the moving member 7A has the first insertion hole. The moving member 7A moves in the direction away from the first insertion hole 3 by moving in the direction away from 3 (+ X direction) and eventually coming into contact with the stepped surface 12 with the abutment surface 7F having the hook shape of the prevention member 7B. Stop moving. FIG. 1 shows a state in which the stopper 7 is farthest from the first insertion hole 3 (one state), and the end of the blade body 4 on the first insertion hole 3 side of the prevention member 7B from the end on the first insertion hole 3 side. The distance L3 to the contact surface 7E is a length capable of peeling the coating layer 30A of the electric wire 30.

  On the other hand, when the operator picks up the operation member 7C and rotates it in the reverse direction (clockwise direction indicated by the black arrow in FIG. 4), the male screw 7D is screwed with the female screw 13, whereby the moving member 7A is first inserted. The moving member 7A moves in the direction approaching the hole 3 (−X direction), and eventually the surface on the first insertion hole 3 side of the operating member 7C comes into contact with the other end surface (+ X side) of the housing 2 to thereby move the moving member 7A. The movement in the direction approaching the first insertion hole 3 is stopped. FIG. 2 shows a state where the stopper 7 is closest to the first insertion hole 3 (another state), and the end of the blade body 4 on the first insertion hole 3 side of the prevention member 7B from the end on the first insertion hole 3 side. The distance L4 (<L3) to the contact surface 7E is a length that allows the covering layer 30A of the electric wire 30 to be peeled off.

  Thus, the electric wire piece 1 is in a state in which the length capable of peeling the coating layer 30A of the electric wire 30 is set to one of L3 and L4 according to the rotation direction and the rotation amount of the operation member 7C. become.

=== Configuration of frame receiver ===
FIG. 6 is a side view showing a state in which the coating layer peeling apparatus in one state according to the present embodiment is attached to the frame receiver. FIG. 7 is a side view showing a state in which the coating layer peeling apparatus in another state according to the present embodiment is attached to the frame receiver. FIG. 8 is a front view showing a state in which the coating layer peeling apparatus according to the present embodiment is mounted on the frame receiver. FIG. 9 is a diagram illustrating a state where the coating layer of the electric wire is peeled off.

  Hereinafter, the configuration of the frame receiver will be described with reference to FIGS.

  The top receiver 20 is a tool that is detachably attached to the electric wire piece 1 when performing an indirect hot wire operation using the electric wire piece 1. The frame receiver 20 includes a mounting member 20A and a rotational force transmission member 20B, and is formed of, for example, a stainless steel material.

  The mounting member 20 </ b> A is detachably mounted on the housing 2 so as to cover the other end surface (+ X side) of the housing 2 and the stopper 7. The mounting member 20A has a cylindrical cup shape. The inner diameter of the mounting member 20 </ b> A is set to be slightly larger than the outer diameter of the housing 2. The depth of the mounting member 20A (internal length in the direction along the X axis) is such that the mounting member 20A covers the other end surface of the housing 2 and the stopper 7 in a state where the stopper 7 is farthest from the first insertion hole 3. Is set to a possible length. The mounting member 20A includes four female screws 20D that respectively overlap an opening 20C facing the other end surface of the housing 2 and four recesses 8 formed in the housing 2 at a position where the mounting member 20A is mounted. And four male screws 20E respectively screwed into the four female screws 20D. Then, the mounting member 20A is mounted on the housing 2 by screwing the four male screws 20E into the four female screws 20D until the tips of the four male screws 20E come into contact with the four depressions 8, respectively. It will be attached to.

  The rotational force transmission member 20B transmits rotational force for rotating the housing 2 to the mounting member 20A. An operator operates the bevel gear 20F that rotates about an axis along the X axis, the bevel gear 20G that rotates about an axis along the Z axis and is screwed into the bevel gear 20F. And a connecting rod 20H connected to an operating rod (not shown) such as a hot stick made of an insulating material. The central axis when the bevel gear 20F rotates is integrally coupled with the mounting member 20A. A central axis when the bevel gear 20G rotates is coupled to the connecting rod 20H. Therefore, when the operator rotates the operation rod, the bevel gear 20G rotates through the connecting rod 20H in the same rotation direction as the operation rod by the rotation amount corresponding to the rotation amount of the operation rod, and the bevel gear 20F is rotated. The mounting member 20A rotates in the rotational direction corresponding to the rotational direction of the bevel gear 20G by the rotational amount corresponding to the rotational amount of the bevel gear 20G, and the mounting member 20A corresponds to the rotational amount of the bevel gear 20F in the same rotational direction as the rotational direction of the bevel gear 20F. It will rotate by the amount of rotation. Thus, the electric wire piece 1 rotates integrally with the mounting member 20A.

=== Covering operation of the coating layer of the electric wire ===
In the electric wire 30 installed on the utility pole, when the tension between the electric wires is relatively large at the connection location where the electric wires are connected to each other or connected to the branch electric wires, the length of the covering layer 30A at the tip of the electric wires 30 is peeled off. It is necessary to set long. On the other hand, in the electric wire 30 installed on the utility pole, when the tension between the electric wires at the connection point where the electric wires are connected to each other or connected to the branched electric wires is relatively small, the length of the covering layer 30A at the tip of the electric wires 30 to be peeled off It is necessary to set the length short.

  When setting the length to which the covering layer 30 </ b> A at the tip of the electric wire 30 is peeled long, the operator moves the stopper 7 to the position of FIG. 1 farthest from the first insertion hole 3, and then the electric wire piece in this state 1 is attached to the frame receiver 20. Further, the operator inserts the tip of the electric wire 30 into the first insertion hole 3 of the electric wire piece 1 and rotates the operation rod. Then, the electric wire piece 1 is automatically inserted into the first insertion hole 3 by rotating the electric wire piece 1 together with the mounting member 20 </ b> A. The coating layer 30A at the tip of the electric wire 30 is peeled off by the blade body 4 until the tip of the electric wire 30 comes into contact with the contact surface 7E of the stopper 7, and the tip of the electric wire 30 exposed after the coating layer 30A is peeled off. The conductor surface 30B is polished by the brush body 5. By this series of operations, the coating layer 30A at the tip of the electric wire 30 can be peeled off by L3.

  On the other hand, when setting the length to which the covering layer 30A at the tip of the electric wire 30 is peeled short, the operator moves the stopper 7 to the position shown in FIG. The electric wire piece 1 is attached to the piece receiver 20. Further, the operator inserts the tip of the electric wire 30 into the first insertion hole 3 of the electric wire piece 1 and rotates the operation rod. Then, the electric wire piece 1 is automatically inserted into the first insertion hole 3 by rotating the electric wire piece 1 together with the mounting member 20 </ b> A. The coating layer 30A at the tip of the electric wire 30 is peeled off by the blade body 4 until the tip of the electric wire 30 comes into contact with the contact surface 7E of the stopper 7, and the tip of the electric wire 30 exposed after the coating layer 30A is peeled off. The conductor surface 30B is polished by the brush body 5. By this series of operations, the coating layer 30A at the tip of the electric wire 30 can be peeled by L4 (<L3).

=== Summary ===
As described above, the wire piece 1 according to the present embodiment peels the coating layer 30 </ b> A at the tip of the wire while rotating around the wire 30 in a state where the wire 30 installed on the utility pole is inserted from the tip. After that, a tool for polishing the conductor surface 30B at the tip of the electric wire 30, which is disposed adjacent to the first insertion hole 3 along the insertion direction of the electric wire 30 and the first insertion hole 3 into which the electric wire 30 is inserted from the tip. The brush body 4 that peels off the coating layer 30A at the tip of the electric wire 30, the brush body 5 that is disposed adjacent to the blade body 4 along the insertion direction of the electric wire 30, and polishes the conductor surface 30B of the electric wire 30, and the electric wire A second insertion hole 6 that passes through the first insertion hole 3 along the insertion direction of the first insertion hole 3 to the opposite side of the first insertion hole 3; Depending on the length of 30A to be peeled off, the electric wire 30 is inserted. Configured to include a stopper 7, the to limit of.

  And according to the present embodiment, when performing the work of peeling the coating layer 30A at the tip of the electric wire 30, the stopper 7 that limits the length of the coating layer 30A to be peeled is covered with the frame receiver 20, By suppressing the exposed area of the charging part of the neglected main body, it is possible to eliminate the inconvenience that causes a ground fault blackout accidentally during work.

  Further, in the electric wire piece 1 according to the present embodiment, the stopper 7 prevents the moving member 7 </ b> A having a long shape moving inside the second insertion hole 6 and the moving member 7 </ b> A from coming out of the second insertion hole 6. And a control member 7C for operating the moving member 7A.

  Further, in the electric wire piece 1 according to the present embodiment, the second insertion hole 6 has an inner diameter of D1 in one region (the range of L21) on the first insertion hole 3 side, and one side on the first insertion hole 3 side. In the other region (L22 region) except for the region, the inner diameter of D2 is smaller than D1, the moving member 7A moves while contacting the inner diameter of D2 of the second insertion hole 6, and the preventing member 7B moves The member 7A is a member that is provided at one end of the first insertion hole 3 side of the member 7A and has a bowl shape that abuts against the step surface 12 between D1 and D2 of the second insertion hole 6, and the operation member 7C is the first member of the moving member 7A. 2 provided at the other end on the insertion hole 6 side.

  Further, in the electric wire piece 1 according to the present embodiment, the prevention member 7 </ b> C has a contact surface 7 </ b> E with which the tip of the electric wire 30 comes into contact when the length of insertion of the electric wire 30 is limited.

  Moreover, in the electric wire piece 1 which concerns on this embodiment, although the contact surface 7E of the prevention member 7C exhibits a planar shape, you may exhibit the concave shape so that the front-end | tip of the electric wire 30 may contact | abut easily.

  Further, in the electric wire piece 1 according to the present embodiment, the second insertion hole 6 has the other side excluding one region (the range of L21) on the first insertion hole 3 side so that the moving distance of the stopper 7 can be finely adjusted. The region (the range of L22) has the female screw 13, and the moving member 7A has a male screw 7D that is screwed into the female screw 13.

  Further, the electric wire piece 1 according to the present embodiment is rotated by a rotational force transmitted from the piece receiver 20 mounted so as to cover the moving member 7A and the operation member 7C exposed from the second insertion hole 6.

  In addition, said embodiment is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Electric wire piece 2 Housing | casing 3 1st insertion hole 4 Blade body 5 Brush body 6 2nd insertion hole 7 Stopper 7A Moving member 7B Prevention member 7C Operation member 7D Male screw 7E, 7F Contact surface 8 Depression 9 Guide 10 Protrusion 11 Opening 12 Stepped surface 13 Female screw 20 Top receiver 20A Mounting member 20B Rotational force transmitting member 20C Opening 20D Female screw 20E Male screw 20F, 20G Bevel gear 20H Connecting rod

Claims (5)

An electric wire covering layer peeling device for peeling the covering layer at the tip of the electric wire while rotating around the electric wire in a state where the electric wire installed on the electric pole is inserted from the tip,
A housing,
A first insertion hole that is drilled from one end face of the housing toward the other end face and into which the electric wire is inserted from the tip;
In order to automatically insert the electric wire into the first insertion hole with the rotation of the housing, the spiral shape is formed so that the coating layer of the electric wire can be pressed from the inner peripheral surface of the first insertion hole. A protrusion that projects and presents,
A blade body that is arranged adjacent to the first insertion hole along the insertion direction of the electric wire and peels off the coating layer at the tip of the electric wire;
A second insertion hole penetrating through the first insertion hole from the other end surface of the housing toward the one end surface;
A stopper that is inserted into the second insertion hole and limits the length of insertion of the electric wire according to the length to be peeled off of the coating layer at the tip of the electric wire,
The stopper includes a moving member having a long shape that moves inside the second insertion hole, a prevention member that prevents the moving member from coming out of the second insertion hole, and an operation member that operates the moving member. And having
The casing is rotated by a rotational force transmitted from a frame receiver that is mounted so as to cover the moving member and the operation member exposed from the second insertion hole. The second insertion hole has an inner diameter of a first diameter in one region on the first insertion hole side, and is smaller than the first diameter in the other region except for one region on the first insertion hole side. Having an inner diameter of the second diameter,
The moving member moves while contacting the inner diameter of the second diameter of the second insertion hole,
The prevention member is a member that is provided at one end of the moving member on the first insertion hole side and has a hook shape that abuts against a step surface between the first diameter and the second diameter of the second insertion hole. ,
The operating member, the coating layer peeling device of the electric wire according to claim 1, characterized in that provided on the other end of the second insertion hole side of the movable member. The wire covering layer peeling apparatus according to claim 2 , wherein the prevention member has a contact surface with which a tip of the wire comes into contact when the length of insertion of the wire is limited. The said contact surface of the said prevention member exhibits planar shape. The coating layer peeling apparatus of the electric wire of Claim 3 characterized by the above-mentioned. The second insertion hole has a female screw in a region excluding a predetermined region on the first insertion hole side,
The wire moving layer peeling device according to any one of claims 2 to 4 , wherein the moving member has a male screw that is screwed into the female screw.

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