JP2015057006A - Tip tool for indirect hot line work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tip tool for indirect hot line work which allows an electric wire to be easily introduced and sandwiches the electric wire in a stable state.SOLUTION: A tip tool 1 for indirect hot line work may sandwich an electric wire and includes: a T-shaped part 2 including a head part 22 having a predetermined width and extending in a longitudinal direction, a base part 21 which is disposed spaced away from the head part 22, and a support part 23 which extends from a substantially center part of the head part 22 when viewed in the longitudinal direction and connects the head part 22 with the base part 21; a movable part 3 which extends in parallel with the longitudinal direction of the head part 22 corresponding to the head part 22, may move in a direction that moves close to the head part 22 or a direction that moves away from the head part 22 in an area between the head part 22 and the base part 21, and may sandwich the electric wire with the head part 22 at both sides sandwiching the support part 23; and a drive mechanism 4 which moves the movable part 3 in the direction that moves close to the head part 22 or the direction that moves away from the head part 22.

Description

  The present invention relates to a tip tool for indirect hot wire work. In particular, the present invention is a tip tool that is detachably provided at the tip of an indirect hot wire tool such as an insulating operation rod, and is a tip tool for indirect hot wire work that holds a high-voltage distribution line or the like installed on a power pole Related to the structure.

  Conventionally, as a tip tool for indirect hot-line work, a hook-like portion whose tip side is formed in a hook shape, and a direction away from the tip of the hook-like portion formed opposite to the tip portion or the tip of the hook-like portion There is known a tip tool for indirect hot-wire work including a movable part that is movable in a direction toward the head (for example, see Patent Document 1). The tip tool for indirect hot-line work described in Patent Document 1 is operated so that an electric wire is introduced into a claw-shaped opening portion in the hook-shaped portion and the electric wire is hooked on the tip portion of the hook-shaped portion. And a movable part is moved to the direction which goes to the front-end | tip part of a bowl-shaped part, and an electric wire is clamped and temporarily fixed.

JP 2010-68582 A

  In the tip tool for indirect hot wire work described in Patent Document 1, depending on the position of the electric wire, the claw-shaped opening is rotated so as to face the electric wire side, and the electric wire is introduced into the claw-shaped opening. However, in the tip tool for indirect hot-line work described in Patent Document 1, the weight on the opening portion side is light, and the center of gravity of the claw-like portion formed on the tip portion side of the hook-like portion is from the center of the tip tool. Is biased. Therefore, when hooking the wire on the tip of the hook-shaped portion, the barycenter is biased and the hook-shaped portion rotates, and when the wire is introduced into the hook-shaped opening, There was also a redo. Accordingly, there is a demand for a tip tool for indirect hot wire work that can easily introduce and hold an electric wire in a stable state.

  An object of this invention is to provide the front-end tool for indirect hot-wire work which can introduce | transpose an electric wire easily and can be clamped in the stable state.

  (1) An indirect hot wire working tip tool according to the present invention is an indirect hot wire working tip tool capable of sandwiching an electric wire, and has a head portion having a predetermined width and extending in a longitudinal direction, and the head A T-shaped part having a base part spaced apart from the part, and a support part that extends from substantially the center in the longitudinal direction of the head part toward the base part and connects the head part and the base part, A movable part capable of holding an electric wire between the head part and extending parallel to the longitudinal direction of the head part corresponding to the head part, and between the head part and the base part, the head A movable portion that is movable in a direction toward the head portion or in a direction away from the head portion and capable of sandwiching an electric wire between the head portion on both sides of the support portion, and a direction toward the head portion or the head Away from the club And a drive mechanism for moving the movable portion in the direction.

  (2) It is preferable that the said support part extends in the direction orthogonal to the longitudinal direction of the said head part from the approximate center of the longitudinal direction of the said head part.

  (3) The drive mechanism has a drive shaft connected to the movable part, and moves the drive shaft so as to move the movable part in a direction toward the head part or in a direction away from the head part. Is preferred.

  (4) It is preferable that each of both end portions in the longitudinal direction of the head portion be bent or curved so as to go to the movable portion side.

  (5) The support portion includes a pair of support plates that are disposed to face each other and extend from both ends in the width direction of the head portion to the base portion side, and the movable portion is interposed between the pair of support plates. Preferably they are arranged.

  ADVANTAGE OF THE INVENTION According to this invention, the front-end tool for indirect hot-wire work which can introduce | transduce an electric wire easily and can be clamped in the stable state can be provided.

It is a perspective view which shows the structure of the front-end tool 1 for indirect hot wire work in one Embodiment of this invention. It is a front view of the tip tool 1 for indirect hot wire work in this embodiment. It is a side view of the tip tool 1 for indirect hot wire work in this embodiment. It is a figure which shows the structure of the insulation operation stick | rod 7 which attaches the front-end tool 1 for indirect hot wire work in this embodiment. It is a figure which shows the usage example which temporarily fixes two electric wires simultaneously using the tip tool 1 for indirect hot wire work in this embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a tip tool 1 for indirect hot-line work in an embodiment of the present invention. FIG. 2 is a front view of the tip tool 1 for indirect hot wire work in the present embodiment. FIG. 3 is a side view of the tip tool 1 for indirect hot wire work in the present embodiment. FIG. 4 is a diagram showing the configuration of the insulating operation rod 7 to which the tip tool 1 for indirect hot-line work in the present embodiment is attached.

Below, the tip tool 1 for indirect hot-wire tools in one Embodiment of this invention is demonstrated. The tip tool 1 is a tip tool for an indirect hot wire tool that can hold an electric wire. The tip tool 1 is used by being attached to an insulating operation rod 7 (described later) having insulating properties.
As shown in FIGS. 1 to 3, the tip tool 1 includes a T-shaped portion 2, a movable portion 3, a drive mechanism 4 that moves the movable portion 3, a connection fitting 5, and a lock mechanism 6. .

  The T-shaped part 2 includes a base part 21, a head part 22, and a support part 23. As shown in FIG. 2, the head portion 22 and the support portion 23 are formed in a substantially T shape when viewed from the front.

  As shown in FIGS. 1 to 3, the head portion 22 has a predetermined width in the front-rear direction and extends in the longitudinal direction. The head portion 22 is formed in a symmetrical shape with respect to the approximate center in the longitudinal direction. Both end portions in the longitudinal direction of the head portion 22 are bent downward toward the movable portion 3 side. Each of the front end portions 22a on both end sides of the head portion 22 faces the outer side obliquely downward. The upper end portion of the support portion 23 is connected to the lower side of the substantially central portion of the head portion 22 in the longitudinal direction.

  The base portion 21 is spaced apart from the head portion 22 on the lower side. The base portion 21 is connected to the head portion 22 via the support portion 23 on the lower side of the substantially central portion of the head portion 22 in the longitudinal direction. As shown in FIGS. 2 and 3, a columnar through-hole 211 penetrating in the vertical direction is formed at the approximate center of the base 21.

  The support part 23 supports the head part 22. The support portion 23 extends in a direction orthogonal to the longitudinal direction of the head portion 22 from the lower side of the substantially central portion of the head portion 22 in the longitudinal direction. The support portion 23 extends from the lower side of the center of the head portion 22 in the longitudinal direction toward the base portion 21 and connects the head portion 22 and the base portion 21. The upper end portion of the support portion 23 is connected to the head portion 22. A lower end portion of the support portion 23 is connected to the base portion 21.

  The support part 23 has a pair of support plates 231. The pair of support plates 231 are arranged to be separated from each other in the width direction of the head portion 22 so as to face each other, extend from both ends of the head portion 22 in the width direction to the base portion 21 side, and are connected to the base portion 21.

  The movable part 3 can sandwich an electric wire between the movable part 3 and the head part 22. The movable part 3 is disposed below the head part 22. The movable portion 3 is disposed to face the head portion 22 and extends in parallel with the longitudinal direction of the head portion 22 corresponding to the head portion 22. The movable portion 3 is formed in a symmetrical shape with respect to the approximate center in the longitudinal direction. The movable part 3 is gently warped toward the head part 22 as it goes outward. Each of the tip portions 3a on both ends of the movable portion 3 faces obliquely upward.

  A pair of gaps S is formed between the distal end portion 22 a of the head portion 22 and the distal end portion 3 a of the movable portion 3. Each of the pair of gaps S is formed on the left and right sides with respect to the support portion 23 (the pair of support plates 231), and opens toward the outside. An electric wire can be introduced into the pair of gaps S from either side.

The movable part 3 is movable between the head part 22 and the base part 21 in a direction toward the head part 22 or in a direction away from the head part 22. Thereby, the movable part 3 can pinch | interpose between the head part 22 the electric wire introduced from the clearance gap S in the both sides which pinched | interposed the support part 23 (a pair of support plate 231).
The movable part 3 is disposed between the pair of support plates 231 in the width direction of the head part 22. The movable portion 3 is movable between the pair of support plates 231 in a direction toward the head portion 22 or away from the head portion.

  The drive mechanism 4 includes a rotation guide cylinder 41 and a rotation shaft portion 42 as a drive shaft. The drive mechanism 4 moves the rotary shaft portion 42 in a direction toward the head portion 22 or away from the head portion 22.

  The rotation guide cylinder 41 is disposed through the through hole 211 of the base portion 21. The rotation guide cylinder 41 is a substantially cylindrical member. The rotation guide cylinder 41 can rotate independently of the base 21. A thread groove is formed on the inner peripheral surface of the rotation guide cylinder 41.

  One end of the rotation guide cylinder 41 is disposed on the upper surface side of the base 21. The outer diameter of one end of the rotation guide cylinder 41 is formed larger than the diameter of the through hole 211. A gear portion 62 (described later) having an outer diameter larger than the diameter of the through hole 211 is connected to the other end portion of the rotation guide cylinder 41. Thereby, the rotation guide cylinder 41 is supported so as to be independently rotatable with respect to the T-shaped portion 2 without falling off from the base portion 21.

  The rotation shaft portion 42 is formed in a rod shape having a thread on the outer peripheral surface so as to be engaged with the thread groove on the inner peripheral surface of the rotation guide cylinder 41. The rotating shaft portion 42 is attached to the inner side of the rotation guide cylinder 41 in a state where the screw on the outer peripheral surface is engaged with the thread groove on the inner peripheral surface of the rotation guide cylinder 41. The upper end portion of the rotation shaft portion 42 is connected to the movable portion 3 at the approximate center in the longitudinal direction of the movable portion 3. The rotating shaft portion 42 extends in a direction orthogonal to the longitudinal direction of the movable portion 3. The rotation shaft portion 42 moves in the vertical direction when the rotation guide cylinder 41 rotates.

  As shown in FIG. 1, the connection fitting 5 is connected to the rotation guide cylinder 41 via a gear portion 62 (described later) on the lower side of the rotation guide cylinder 41. The connection fitting 5 is formed in a cylindrical shape whose bottom is opened. A shaft hole 51 into which the shaft portion 711 of the tool attachment portion 71 is fitted is opened on the bottom surface of the connection fitting 5. The connection fitting 5 is formed with a pair of T-shaped grooves 52 and 52 which are engaged by rotating a pair of pins 712 and 712 of the tool attachment portion 71.

  The lock mechanism 6 locks the movement of the movable part 3 on the side away from the head part 22 so that the clamped electric wire is not easily loosened while the electric wire is temporarily fixed between the head part 22 and the movable part 3. To do. The lock mechanism 6 includes a knob portion 61 and a gear portion 62.

  The gear portion 62 is formed in a ring shape and is fixed to the upper surface of the connection fitting 5. On the upper surface of the gear portion 62, irregularities arranged in the circumferential direction are formed. The unevenness of the gear portion 62 includes a gently inclined surface positioned on the traveling direction side when the insulating operation rod 7 rotates counterclockwise and a substantially vertical vertical surface positioned on the traveling direction side when the insulating operation rod 7 rotates clockwise. And have.

  The knob portion 61 is provided on the side portion of the base portion 21. The knob portion 61 includes a protrusion (not shown) that protrudes toward the gear portion 62. A protrusion (not shown) of the knob portion 61 can be moved to a side toward the unevenness of the gear portion 62 or a side away from the unevenness of the gear portion 62 by an operator operating the knob portion 61.

  In a locked state in which the protrusion (not shown) of the knob portion 61 is in contact with the unevenness of the gear portion 62, the rotation of the rotation guide cylinder 41 with respect to the base portion 21 is caused by the protrusion (not shown) by the vertical surface of the gear portion 62. It is locked by being restricted by the unevenness of the gear part 62. On the other hand, the left rotation of the rotation guide cylinder 41 with respect to the base portion 21 is allowed by the inclined surface of the gear portion 62 without the protrusions (not shown) being restricted by the unevenness of the gear portion 62.

  Further, in the unlocked state in which the protrusion (not shown) of the knob portion 61 is separated from the unevenness of the gear portion 62, the protrusion (not shown) is not restricted by the unevenness of the gear portion 62, and the rotation guide cylinder 41 is It is rotatable with respect to the base 21.

Next, the insulating operation rod 7 will be described. The insulating operation rod 7 can connect tip tools having different uses. The insulating operation bar is also referred to as a “common operation bar”.
As shown in FIG. 4, the insulating operation rod 7 includes a tool attachment portion 71, a handle portion 72, and a grip portion 73. The tool attachment portion 71 can be attached to and detached from the connection fitting 5 (see FIGS. 1 to 3) of the tip tool 1. The grip 73 is provided with a slip stopper so that an operator can easily grip it. The handle portion 72 is formed of a long tubular body, and connects the tool attachment portion 71 and the grip portion 73. The handle 72 extends in the vertical direction at the approximate center in the longitudinal direction of the head portion 22 and the approximate center in the longitudinal direction of the movable portion 3. Thereby, the insulation operating rod 7 supports the tip tool 1 at the position of the center of gravity.

  As shown in FIG. 4, a cone-shaped draining rod 74 is provided at the intermediate portion of the handle 72 as a measure against rain. The draining rod 74 can dam the rainwater transmitted from the tool mounting portion 71. A conical safety limit rod 75 is provided at a connection portion between the handle portion 72 and the grip portion 73. The safety margin 鍔 75 is provided to clarify the boundary between a portion that does not get an electric shock even if the operator grips it and a portion that does not get an electric shock and a portion that does not get an electric shock when gripped. is there. The attachment position of the safety limit rod 75 indicates the limit of the position of the grip portion 73 that can be safely operated on the insulating operation rod 7.

  As shown in FIG. 4, the tool attachment portion 71 includes a shaft portion 711, a pair of pins 712 and 712, and a protrusion 713. The shaft portion 711 protrudes in the axial direction of the handle portion 72. The pair of pins 712 and 712 protrude in the direction perpendicular to the axial direction from the outer periphery of the shaft portion 711 in opposite directions. The protrusion 713 is urged by a compression coil spring (not shown) built in the tool attachment portion 71 so as to protrude from the distal end surface of the shaft portion 711.

  When the tip tool 1 is attached to the insulating operation rod 7, as shown in FIG. 1, the shaft portion 711 of the tool mounting portion 71 is inserted into the shaft hole 51 of the connection fitting 5 and rotated by a predetermined angle. Accordingly, the pair of pins 712 and 712 can be fitted into the T-shaped grooves 52 and 52 of the connection fitting 5 by being biased by the protrusion 713.

Next, a method for using the tip tool 1 will be described. The tip tool 1 is used in a state where it is mounted on the insulating operation rod 7.
A method of using the tip tool 1 when temporarily fixing one electric wire will be described with reference to FIGS.

  First, the clearance S between the distal end portion 22a of the head portion 22 of the T-shaped portion 2 and the distal end portion 3a of the movable portion 3 is adjusted to such an extent that an electric wire can be inserted. Then, by operating the insulation operating rod 7, the tip tool 1 is brought close to the electric wire, and the electric wire is inserted into the gap S between the tip portion 22 a of the head portion 22 of the T-shaped portion 2 and the tip portion 3 a of the movable portion 3. By passing the wire, the electric wire is hooked on the head portion 22.

  Here, the gap S between the tip portion 22 a of the head portion 22 and the tip portion 3 a of the movable portion 3 is formed on both the left and right sides of the tip tool 1 with respect to the support portion 23. Therefore, the wire can be stably introduced from either the left or right side of the tip tool 1 in a stable state by finely adjusting the direction of the tip tool 1 regardless of the position of the wire. The center of gravity of the head portion 22 is at the center of the tip tool 1. Therefore, the electric wire can be introduced into the gap S between the tip portion 22a of the head portion 22 and the tip portion 3a of the movable portion 3 in a stable state.

  When the electric wire is introduced into the gap S between the tip 22a of the head portion 22 and the tip 3a of the movable portion 3, when the insulation operating rod 7 is rotated counterclockwise, the T-shaped portion 2 is prevented from rotating by the wire. Since the movable part 3 is prevented from rotating by the T-shaped part 2, the rotation guide cylinder 41 rotates counterclockwise. When the rotation guide cylinder 41 rotates counterclockwise, the screw groove of the rotation guide cylinder 41 and the rotation shaft portion 42 are engaged with each other. Therefore, the rotation shaft portion 42 moves toward the head portion 22, and the movable portion 3 also rotates. It moves toward the head part 22 together with 42. Accordingly, the gap S becomes narrower, and the electric wire hooked on the head portion 22 can be held between the head portion 22 and the movable portion 3. Thereby, an electric wire is clamped between the head part 22 and the movable part 3, and is temporarily fixed.

  Here, the tip tool 1 includes a lock mechanism 6 that locks the movement of the movable portion 3 to the side away from the head portion 22 so that the clamped electric wire is not easily loosened. When the insulating operation rod 7 is rotated clockwise in the locked state where the knob portion 61 is moved downward, the protrusion (not shown) of the knob portion 61 comes into contact with the substantially vertical surface of the projections and recesses of the gear portion 62, and the insulating operation is performed. The right rotation of the bar 7 is restricted. Thereby, the movement of the movable part 3 on the side away from the head part 22 is restricted.

  On the other hand, when the insulating operation rod 7 is rotated counterclockwise, it comes into contact with the smooth inclination of the unevenness of the gear portion 62. However, the left rotation of the insulating operation rod 7 is not limited because it can easily get over the inclination. That is, in the locked state in which the knob portion 61 is moved downward, the left rotation of the insulating operation rod 7 is allowed and the right rotation of the insulating operation rod 7 is restricted. Thereby, in a state where the movable part 3 cannot move to the side away from the head part 22, the movable part 3 can move toward the head part 22 side.

  In the unlocked state in which the knob portion 61 is moved upward, the protrusion (not shown) of the knob portion 61 does not come into contact with the unevenness of the gear portion 62, so that either right or left rotation is allowed.

  Further, when removing the electric wire from the state in which the electric wire hooked on the head portion 22 is sandwiched between the head portion 22 and the movable portion 3, in the unlocked state in which the knob portion 61 is moved upward, the insulating operation rod 7 Rotate right. As a result, the T-shaped part 2 is prevented from rotating by the electric wire and the movable part 3 is prevented from rotating by the T-shaped part 2, so that the rotation guide cylinder 41 rotates clockwise. When the rotation guide cylinder 41 rotates to the right, the screw groove of the rotation guide cylinder 41 and the rotation shaft portion 42 are engaged with each other. Therefore, the rotation shaft portion 42 moves toward the insulating operation rod 7, and the movable portion 3 also rotates. It moves toward the insulating operating rod 7 together with the portion 42. As a result, the gap S between the tip portion 22a of the head portion 22 of the T-shaped portion 2 and the tip portion 3a of the movable portion 3 is widened. For this reason, an electric wire can be removed from the tip tool 1.

  Next, in the case where the two electric wires are arranged side by side at an interval of about the length of the head portion 22 in the longitudinal direction, the two electric wires are temporarily fixed simultaneously with reference to FIG. How to use will be described. FIG. 5 is a diagram showing a usage example in which two electric wires are temporarily fixed simultaneously using the tip tool 1 for indirect hot-wire work in the present embodiment.

  When it is desired to temporarily fix two wires arranged side by side at an interval of about the length of the head portion 22 at the same time, the insulation operating rod 7 is operated to select one of the two wires. One electric wire is introduced into the tip tool 1 from the gap S on one side of the T-shaped portion 2. Thereafter, with the electric wire hooked on one side, the insulation operating rod 7 is operated to introduce the other electric wire of the two electric wires into the tip tool 1 from the gap S on the other side of the T-shaped portion 2. Let Thereby, as shown in FIG. 5, two electric wires can be introduced into the T-shaped part 2 on both sides of the one side and the other side with the support part 23 of the T-shaped part 2 interposed therebetween. In this state, the insulating operation rod 7 is rotated in the same manner as in the case where the single electric wire is temporarily fixed. Thereby, the movable part 3 is moved to the head part 22 side, so that the two electric wires are temporarily sandwiched between the head part 22 and the movable part 3 on both sides of the support part 23 and temporarily fixed. be able to.

According to the tip tool 1 for indirect hot wire work in the present invention, the following effects are exhibited.
(1) Since the center of gravity of the head part 22 is at the center of the tip tool 1, in a stable state, an electric wire is introduced into the gap S between the tip part 22a of the head part 22 and the tip part 3a of the movable part 3. Can be pinched.
(2) The movable part 3 can clamp an electric wire between the movable part 3 and the head part 22 on both sides of the support part 23 (a pair of support plates 231). Therefore, even if there is an electric wire on the left or right side of the tip tool 1, in a stable state, the gap between the tip portion 22a of the head portion 22 and the tip portion 3a of the movable portion 3 is inserted into the clearance S of the tip tool 1. Electric wires can be introduced from either the left or right side.
(3) Since the electric wires can be introduced from either the left or right side of the tip tool 1, two electric wires arranged side by side can be sandwiched at the same time and temporarily fixed.
(4) The tip tool 1 can be operated by being attached to the insulating operation rod 7. Therefore, when the tip tool 1 is used, it is only necessary to use the insulating operation rod used in other tip tools, and only the tip tool 1 according to the present invention needs to be prepared. can do.
(5) Since the head portion 22 has a predetermined width, the head portion 22 is prevented from being inclined with respect to the electric wire, and the electric wire can be temporarily fixed securely.
(6) The support portion 23 extends from a substantially center in the longitudinal direction of the head portion 22 in a direction orthogonal to the longitudinal direction of the head portion 22. Therefore, the center of gravity of the tip tool 1 can be made closer to the center side of the tip tool 1, and the tip tool 1 can be operated more stably.
(7) Both end portions in the longitudinal direction of the head portion 22 are bent toward the movable portion 3 side. Therefore, the electric wire can be hooked and easily introduced into the T-shaped portion 2. Moreover, the electric wire introduced into the T-shaped part 2 can be easily clamped in a hooked state.

As mentioned above, although preferred embodiment was described, this invention can be implemented with a various form, without being limited to embodiment mentioned above.
For example, in the above-described embodiment, both end portions of the head portion 22 are bent, but the present invention is not limited to this, and both end portions of the head portion 22 may be bent.

DESCRIPTION OF SYMBOLS 1 Tip tool 2 T-shaped part 3 Movable part 4 Drive mechanism 21 Base part 22 Head part 23 Support part 42 Rotating shaft part (drive shaft)
231 Support plate

Claims (5)

It is a tip tool for indirect hot wire work that can hold an electric wire,
A head portion having a predetermined width and extending in the longitudinal direction; a base portion disposed away from the head portion; and a head portion and the base portion extending from substantially the center in the longitudinal direction of the head portion toward the base portion. A T-shaped part having a support part for connecting
A movable part capable of holding an electric wire between the head part and extending parallel to the longitudinal direction of the head part corresponding to the head part, and between the head part and the base part, the head A movable part that is movable in a direction toward the part or in a direction away from the head part and capable of sandwiching an electric wire between the head part on both sides of the support part;
A tip tool for indirect live-line work comprising: a drive mechanism that moves the movable part in a direction toward the head part or in a direction away from the head part. The tip tool for indirect hot-wire work according to claim 1, wherein the support part extends from a substantially center in a longitudinal direction of the head part in a direction orthogonal to the longitudinal direction of the head part. The drive mechanism has a drive shaft connected to the movable portion, and moves the drive shaft so as to move the movable portion in a direction toward the head portion or in a direction away from the head portion. Tip tool for indirect hot wire operation according to 2. The tip tool for indirect hot-wire work according to any one of claims 1 to 3, wherein each of both end portions in the longitudinal direction of the head portion is bent or curved toward the movable portion side. The support portion has a pair of support plates that are arranged to face each other and extend from both end portions in the width direction of the head portion to the base portion side,
The tip tool for indirect hot-wire work according to any one of claims 1 to 4, wherein the movable portion is disposed between the pair of support plates.

Images