JP4662881B2 - Insulated operation rod support structure - Google Patents

Description

  The present invention relates to an insulating operation rod support structure, and more specifically, a rod-shaped end is attached to the main body, the other end is gripped, and the main body is supported in an insulated state toward a separated live wire. The present invention relates to an insulating operation rod support structure that can be attached and detached.

Conventionally, an insulating operation rod support structure is used for work such as mounting a protective tube (see Patent Document 1), fixing a protective tube (see Patent Document 2), or short-circuiting an electric wire in an overhead work of an overhead electric wire. It is used when attaching and detaching to the electric wire while supporting the main body of the device to be insulated, and attaches one end of an insulating operation rod made of insulating material to this main body and grips the other end to separate the live wire There is a well-known structure that can prevent an electric shock by supporting the main body and attaching / detaching it without touching it directly.
Japanese Patent Laid-Open No. 9-284935 JP, 9-140016, A An embodiment by the structure mentioned above is described with reference to Drawing 6 thru / or 11. FIG. 6 is a configuration diagram showing an embodiment of a conventional insulating operation rod support structure adopted in the main body 10A for attaching the protective tube 3 to the electric wire 2. As shown in FIG. FIG. 7 is a view showing an appearance of the insulating operation rod 30 shown in FIG. FIG. 8 is an enlarged view showing in detail the coupling structure of the portion C shown in FIG. Moreover, FIG. 9 is a figure which shows an attachment state in case the building 5 exists in the attachment position of 10 A of main bodies shown in FIG. FIG. 10 is a configuration diagram showing another embodiment of a conventional insulating operation rod support structure employed in the main body 10B for fixing the protective tube 3. FIG. 11 is a diagram illustrating a state in which the main body 10 </ b> B illustrated in FIG. 10 is attached to the electric wire 2.

  As shown in FIG. 6, in one embodiment of a conventional insulating operation rod support structure, a rod-shaped insulation operation rod 30 is attached to and detached from a main body 10A of a device for attaching a protective tube 3 to an electric wire 2, and this main body 10A is used. One end of the insulating operation rod 30 is attached to the bottom surface of the slab, and the other end is held by the operator 1A so that the main body 10A is supported and lifted up and down to be detached. Here, the main body 10 </ b> A is provided with a biaxial rotation operation rod 50 extending downward from the bottom surface, and the operator 1 </ b> B operates and protects the biaxial rotation operation rod 50 at a lower end position away from the electric wire 2. The tube 3 is formed in a structure (see, for example, the above-mentioned Patent Document 1) in which the tube 3 is sent from one end side to the other end side at a predetermined angle and attached to the electric wire 2. The insulating operation rod 30 is provided on the bottom surface of the main body 10A so as to be attached to and detached from a position parallel to the biaxial rotation operation rod 50. As shown in FIG. 7, the insulating operation rod 30 is formed in a rod shape by an insulating material, and includes a joint 32 connected to the main body 10 </ b> A (see FIG. 6) on one end side, and an umbrella cover 34 in the middle of the rod shape. In addition, it is provided so that moisture does not drip at the place held by the worker 1A and an electric shock is not caused. Further, as shown in FIG. 8, the insulating operating rod 30 is protruded from the joint 32 at the front end by an engagement pin 32a protruding outward at the outer periphery and an elastic body 32c such as a spring from the inside at the front end. Part 32b. The insulating operating rod 30 has a knurled portion 33 having a non-slip structure that is gripped and rotated left and right when the joint 32 is attached to the main body 10A. On the other hand, the main body 10A is provided with a cylindrical fitting portion 12A in which the joint 32 of the insulating operation rod 30 can be inserted, and the engaging pin 32a of the joint 32 is fitted on the outer periphery of the fitting portion 12A. Thus, a T-shaped engagement groove 12Aa for engaging and guiding is formed. The engagement groove 12Aa is cut out from the lower end of the fitting portion 12A in the vertical upper portion, and is cut out from the end portion on both sides to form a T-shape. Is formed.

  As shown in FIG. 6, according to an embodiment of the conventional insulating operation rod support structure formed as described above, when the main body 10 </ b> A is attached to the electric wire 2, first, it is moved up and down using an aerial work vehicle (wrecker) 4. Two workers 1 </ b> A and 1 </ b> B get on the work table (bucket) 4 a to be moved, and are moved up to the position of the electric wire 2 to perform the mounting work. Here, when the main body 10A is placed on the work table 4a, the insulating operation rod 30 is attached to the main body 10A in advance to be raised to the position of the electric wire 2. When the joint 32 shown in FIG. 8 is attached to the fitting portion 12A of the main body 10A, the insulating operating rod 30 is inserted with the engaging pin 32a aligned with the engaging groove 12Aa, and the engaging pin 32a is inserted into a T-shape. The engaging pin 32a is moved to the end portion A12b by gripping the knurled portion 33 on one of the end portions 12Ab provided on both side ends along the engagement groove 12Aa and sliding it forward and backward. Hook and fix. At this time, the insulating operating rod 30 urges the protrusion 32b to push the bottom surface in the fitting portion 12A by rotating and releasing the engaging pin 32a to the end 12Ab of the engaging groove 12Aa. The engaging pin 32a can be fixed so as not to be released by being pushed in the direction of being caught by the T-shaped end portion 12Ab. Referring to FIG. 6 again, when the main body 10A on which the insulating operation rod 30 is mounted in advance is placed on the work table 4a and ascends to the vicinity of the electric wire 2, the two operators 1A and 1B are connected to the insulating operation rod 30 and the two-axis By gripping and simultaneously rotating the rotary operation rod 50, it is possible to prevent electric shock from the work table 4a spaced apart from the electric wire 2 and approach or attach the electric wire 2 in a safe state.

  However, in one embodiment of the conventional insulating operation rod support structure, the main body 10A to which the protective tube 3 is attached has a weight of about 20 kg, and the joint is aligned with the fitting portion 12A on the bottom surface of the main body 10A shown in FIG. It is necessary to maintain and lift the insulating operating rod 30 in the vertical direction to insert 32, and two workers 1A and 1B are connected to the insulating operating rod 30 at an unstable height of the work table 4a shown in FIG. Since the main body 10A needs to be vertically lifted up to the position of the electric wire 2 at the same time by grasping the biaxial rotation operation rod 50, for example, the work positions, breathing, and force adjustment of the two workers 1A and 1B do not match. 6, when the distance between the hand holding the insulating operation rod 30 is widened as shown by the dotted line in FIG. 6 and the vertical direction cannot be maintained, and the joint 32 of the insulating operation rod 30 shown in FIG. 8 is deformed. There is. In addition, in such work, an aerial work vehicle 4 is used. For example, as shown in FIG. 9, when there is a building 5 in the vicinity of the attachment position of the main body 10A, the work table 4a is moved to the attachment position. In order to maintain the above-described insulating operation rod 30 in the vertical direction, it is necessary for the operator 1A to maintain the vertical state in a state where the worker 1A protrudes from the work table 4a, which makes the workability more difficult.

  On the other hand, in some cases, the insulating operation rod 30 is also used in the main body of the device for fixing the protective tube 3 attached to the electric wire 2 (see, for example, Patent Document 2). Another embodiment of the conventional insulating operation rod support structure employed in the main body 10B for fixing the protective tube 3 in this way is to fix the protective tube 3 (see FIG. 11) attached to the electric wire 2 as shown in FIG. A rod-like insulation operating rod 30 is attached to and detached from the main body 10B of the apparatus to be attached, and one end of the insulation operating rod 30 is attached to the bottom surface of the main body 10B, and the other end is held by the operator 1 until the electric wire 2 is separated. The main body 10B is supported and lifted to be attached and detached. Here, the insulation operation rod 30 is the same component as the insulation operation rod shown in FIG. 7, and the same components are denoted by the same reference numerals and redundant description is omitted. The main body 10B is provided with a fitting portion 12B for attaching and detaching the joint 32 of the insulating operation rod 30 shown in FIG. 10, similarly to the main body shown in FIG. 8, and the fitting portion 12B has a T-shaped engagement. An end portion 12Bb is formed at both ends with a joint groove 12Ba. Further, the main body 10B is vertically engaged with a U-shaped body portion 11B extending vertically and projecting both ends horizontally, and one side extending horizontally from both ends of the body portion 11B. A screw rod 13B, which is provided with a receiving piece 14B that extends to the inside and outside of the U-shape and includes the above-described fitting portion 12B at one end on the outside and sandwiches the electric wire between the other end on the inside. I have. Further, the body portion 11B of the main body 10B is provided with a restraining piece 15B that engages with the protective tube 3 and deters it. In addition, the main body 10B is a device that forms a part from the position of the body part 11B sandwiching the electric wire 2 to the clip 17B with a conductor by attaching a clip 17B to the body part 11B via the cable 16B, and short-circuits the section. It can also be used.

  In another embodiment of the conventional insulating operation rod support structure formed as described above, the insulating operation rod 30 (joint 32) shown in FIG. 10 is inserted into the fitting portion 12B of the main body 10B to grip the knurled portion 33. In the state of being rotated and attached, for example, as shown in FIG. 11, the operator 1 climbs up the utility pole 6 and lifts the main body 10 </ b> B from the position spaced apart from the electric pole 2 to the electric wire 2. Work to attach and detach. At this time, when mounting the main body 10 </ b> B on the electric wire 2, the U-shaped body portion 11 </ b> B is hooked on the electric wire 2, and the restraining piece 15 </ b> B is attached to the end portion of the protective tube 3. And the main body 10B can pinch and fix the electric wire 2 by rotating the insulation rod 30 and rotating the screw rod 13B. Further, when removing the main body 10B, the screw rod 13B can be released from the electric wire 2 that has been loosely clamped by rotating the insulating operation rod 30 in the direction opposite to that at the time of mounting. As described above, in another embodiment of the conventional insulating operation rod support structure, the main body 10B for fixing the protective tube 3 is also provided with the fitting portion 12B so that the rod-shaped insulation operation rod 30 can be attached and detached. The same effect as that of the insulating operation rod support structure can be obtained.

  However, in another embodiment of the conventional insulating operation rod support structure, when the operator 1 climbs the utility pole 6 and attaches the main body 10B to the electric wire 2, the insulation operation is performed in accordance with the extending direction of the screw rod 13B of the main body 10B. Since the rod 30 also needs to be gripped and rotated in the vertical direction, for example, as shown by the dotted line in FIG. The joint 32 may be deformed by being tilted without being able to maintain verticality. Further, it is possible for the worker 1 to work from the work table 4a shown in FIG. 6 without climbing the utility pole 6. However, as shown in FIG. 9, workability becomes difficult if the building 5 becomes an obstacle. As described above.

As described above, in the conventional insulation operation rod support structure, it is necessary to always maintain the insulation operation rod 30 extending in a rod shape in accordance with the fitting portion 12A (see FIG. 8) of the main body 10A in the vertical direction. Therefore, as shown in FIG. 6 and FIG. 9, the operator 1A cannot maintain the hand holding the insulating operation rod 30 in the vertical position at an unstable height of the work table 4a, and is inclined to open. There was a problem that the joint 32 may be deformed and damaged.
Further, in the conventional insulating operation rod support structure, as shown in FIG. 9 or 11, when the positions of the main bodies 10 </ b> A and 10 </ b> B to be hooked on the electric wires 2 are far from the operator 1, the operator 1 holding the insulating operation rod 30. Depending on how the force is applied, it will tilt to the left and right, making it difficult to keep the insulation operating rod 30 vertical in all situations, resulting in poor workability and few indirect methods (only specific work can be used) There was a problem that.

  The present invention has been made in view of the above points, and its purpose is to absorb the load due to the inclination of the hand with a simple structure when the main body is supported in an insulated state via the insulating operation rod and attached to and detached from the electric wire, An object of the present invention is to provide an insulating operation rod support structure that can cope with various attachment / detachment situations.

  The present invention has been made to solve the above-described problems. A rod-like end is attached to a main body that is attached to and detached from a live wire in a high-altitude work, and the other end is gripped to support the main body in an insulated state. Insulating operation rod support structure that attaches and detaches to and from the electric wire, and has an insulating operation rod that is attached to and detached from the main body via a joint at one end, and a main body having a fitting portion that attaches and detaches the joint of the insulating operation rod. In addition, a new joint having the same shape as the joint of the insulating operation rod and the fitting portion of the main body and the fitting portion are arranged on both sides, and an adapter formed integrally with an elastic member interposed therebetween, By attaching the insulating operation rod to the main body through the adapter, the adapter is provided so that the elastic member of the adapter absorbs the load caused by the inclination of the insulating operation rod that supports the main body.

  Here, the elastic member is preferably made of a member that has elasticity and absorbs external force, such as a reinforcing spring, a reinforcing rubber, and a fluid damper. Moreover, it is preferable to replace and use an adapter according to a main body by providing in advance two or more things which changed the rigidity of the elastic member in steps. Further, as another embodiment of the adapter, it is preferable to provide the rigidity of the elastic member so that it can be finely adjusted. In addition, the main body is a main body that is attached to and detached from the electric wire by an indirect method, such as a device for attaching a protective tube to the electric wire, a device for fixing the protective tube, or a device for short-circuiting the electric wire in an overhead work of an overhead electric wire. Is preferred.

As described above, according to the insulated operating rod support structure according to the present invention, the elastic effect of the elastic member interposed adapter between the body and the insulating operating rod, eccentric load (load) to the joint due to inclination of the insulated operating rod Can be reduced and damage to the joint or the entire device can be prevented.
In addition, according to the insulating operating rod support structure of the present invention, by attaching an adapter between the main body and the insulating operating rod, it is possible to approach from an oblique direction with the insulating operating rod tilted. It is possible to increase the variation of the indirect method.

  Next, an embodiment of an insulating operation rod support structure according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a configuration diagram showing an embodiment of an insulating operation rod support structure according to the present invention. FIG. 2 is an enlarged view showing details of the adapter 20 shown in FIG. 3 is an operation explanatory view showing an operation of attaching the fitting portion 24 of the adapter 20 shown in FIG. 1 to the joint 32 of the insulating operation rod 30, and FIG. 3 (a) shows the state before the attachment. 3 (b) shows a state during attachment, and FIG. 3 (c) shows a state after attachment. FIG. 4 is a diagram showing another embodiment of the adapter shown in FIG. FIG. 5 is a view showing a state in which the main body 10 and the insulating operation rod 30 are connected by the adapters 20 and 40 shown in FIG. 2 or 4. Here, the insulation operation rod 30 shown in FIGS. 1 and 5 is the same component as the insulation operation rod shown in FIG. 7, and the same components are denoted by the same reference numerals.

  As shown in FIG. 1, the embodiment of the insulating operation rod support structure according to the present invention is, for example, attached to a protection tube, fixed to a protection tube, or an electric wire as in the prior art shown in FIGS. 6 and 11. One end of an insulating operation rod 30 extending in a rod shape is attached to the main body 10 (10A, 10B shown in FIGS. 6 and 11) of a device that performs operations such as short-circuiting, and the other end is gripped to raise the main body 10 Insulating operation that is supported in place in an insulated state and is attached to and detached from the live wire 2 (see FIG. 6 or 11) by an indirect method and is attached to and detached from the main body 10 through a joint 32 at one end. A rod 30 and a main body 10 having a fitting portion 12 for attaching and detaching the insulating operation rod 30 are provided. Further, in the present embodiment, unlike the prior art shown in FIGS. 6 and 11, when connecting the main body 10 and the insulating operating rod 30, the joint 32 of the insulating operating rod 30 and the fitting portion of the main body 10 are connected between them. 12, a new joint 22 having the same shape as 12 and a fitting portion 26 are arranged on both sides, and an adapter 20 formed integrally with an elastic member 26 interposed therebetween is provided and interposed. That is, in this embodiment, by attaching the insulating operation rod 30 to the main body 10 via the adapter 20, the load caused by the inclination of the insulating operation rod 30 that supports the main body 10 can be absorbed by the elastic member 26 of the adapter 20. It is provided as follows.

Here, in the case of the main body 10 </ b> A for attaching the protective tube shown in FIG. 6, the main body 10 includes a biaxial rotation operation rod 50 extending downward from the bottom surface. When the worker 1B operates at the lower end that is separated, the protective tube 3 is formed so as to be sent from one end side to the other end at a predetermined angle and attached to the electric wire 2, and separated from the biaxial rotation operation rod 50. The insulating operation rod 30 is formed so as to be attached to the parallel position directly or via the adapter 20. Further, the main body 10 is formed so that only the insulating operation rod 30 can be attached directly or via the adapter 20 in the case of the main body 10B for fixing the protective tube or short-circuiting the electric wire shown in FIG. That is, in the present embodiment, when mounting the insulation operation rod 30 to the body 10 (10A or 10B) of FIG. 6 or FIG. 11, the adapter 20 when the polarization due to the inclination heart load (load) is applied to the joint 32 through mounted, when the eccentric load is not applied is formed so as to be selectively mounted in two ways to attach directly to the body 10 an insulating operation rod 30.

Further, the insulating operating rod 30 is the same component as the insulating operating rod shown in FIG. 7, and is formed into a rod shape by an insulating material and includes a joint 32 connected to the main body 10 at one end, and in the middle of the rod shape. An umbrella cover 34 is provided so that moisture does not drip onto the gripping portion of the operator 1 and an electric shock is prevented. As shown in FIG. 1, the insulating operating rod 30 includes a joint 32 at the tip, a pair of engaging pins 32a protruding outward at the outer periphery, and an elastic body (not shown) such as a spring from the inside at the tip. And a projecting portion 32b that appears and disappears. Further, the insulating operation rod 30 is formed with a knurled portion 33 having a non-slip structure that is gripped and rotated left and right at a lower portion of the joint 32.
On the other hand, the main body 10 includes a cylindrical fitting portion 12 for attaching the insulating operation rod 30 to the bottom surface, and a T-shaped engagement groove on the outer periphery of the fitting portion 12. 12a is formed in a pair on both sides. The engaging groove 12a is cut out from the lower end of the fitting portion 12 in the vertical upper part, and is cut out in both sides from the end portion to form a T-shape. Is formed.

  On the other hand, as shown in FIGS. 1 and 2, the adapter 20 allows the new joint 22 and the fitting portion 24 having the same shape as the joint 32 of the insulating operation rod 30 and the fitting portion 12 of the main body 10 to be opposite to each other. Are arranged on both sides of a straight line so as to face each other, and an elastic member 26 is interposed between them and connected to both ends so as to be integrally formed. Similar to the joint 32 of the insulating operation rod 30, the joint 22 of the adapter 20 is formed with an engagement pin 22a and a protrusion 22b. The adapter 20 is formed with a knurled portion 23 having an anti-slip structure that is gripped by the lower portion of the joint 22 and rotated left and right like the insulating operation rod 30. Further, similarly to the fitting portion 12 of the main body 10, an engaging groove 24 a and an end portion 24 b are formed in the fitting portion 24 of the adapter 20. As shown in FIG. 1, the adapter 20 connects the joint 22 to the fitting portion 12 of the main body 10 and the fitting portion 24 to the joint 32 of the insulating operation rod 30, respectively. Thus, the insulating operating rod 30 side is formed by the elastic member 26 so as to have a free end structure and swing (see FIG. 5). Further, in the case where the load is not applied to the joint 32 of the insulating operation rod 30, the adapter 20 connects the joint 32 of the insulating operation rod 30 to the fitting portion 12 of the main body 10 as in the prior art shown in FIG. 6 or 11. It is also possible to use it with it attached directly and removed. Here, the elastic member 26 is formed of a member (strengthening spring in FIGS. 1 and 2) that has elasticity and absorbs external force, such as a reinforcing spring, a reinforcing rubber, and a fluid damper.

  When the adapter 20 formed in this way is used, for example, the fitting portion 24 side is attached to the joint 32 of the insulation operation rod 30 and the insulation operation rod 30 is connected, and then the joint 22 side is fitted to the body 10. By connecting to the portion 12, the insulating operating rod 30 can be used by being attached to the main body 10 in a free end state capable of absorbing a load. At this time, the case where the joint 32 of the insulating operation rod 30 is connected to the fitting portion 24 of the adapter 20 and the case where the joint 22 of the adapter 20 is connected to the fitting portion 12 of the main body 10 can be connected by the same operation. Here, only the former operation will be described in detail with reference to FIG. As shown in FIG. 3A, first, the engagement pin 32 a formed on the joint 32 of the insulating operation rod 30 is installed in accordance with the engagement groove 24 a of the fitting portion 24 of the adapter 20. Then, by pushing up the joint 32 side (insulating operation rod 30) and inserting it into the fitting portion 24 side (adapter 20), as shown in FIG. 3 (b), the engagement pin 32a becomes the upper end of the engagement groove 24a. The abutting operation stops the insertion operation. When the insertion operation is stopped in this way, the insulating operation rod 30 is moved along the engagement grooves 24a extending on both sides of the T-shaped upper end of the fitting portion 24 side (adapter 20) shown in FIG. By grasping the knurled portion 33 and rotating either forward or backward, the engaging pin 32a is slid to the end portion 24b on either side of the upper end. After the engagement pin 32a is slid to the end 24b of the engagement groove 24a in this way, as shown in FIG. 3 (c), the insulation operating rod 30 is released to project the protrusion 32b (see FIG. 3 (a)) urges the fitting portion 24 in the direction of pushing the lower surface, so that the engaging pin 32a can be fixed so as not to be pushed downward in the vertical direction to be hooked on the end portion 24b. On the other hand, when the engagement between the adapter 20 and the insulating operation rod 30 is disengaged, the operation may be reversed. First, the insulation operation rod 30 is lifted to engage the end 24b and the engagement pin 32a. It can be easily removed by gripping and rotating the knurled portion 33 in the opposite direction to that at the time of mounting described above.

  By the way, the adapter 20 absorbs the load absorbed by the elastic member 26 shown in FIG. 1 depending on the size and weight of the main body 10 (10A, 10B) shown in FIG. Since the amounts differ greatly, it is necessary to adjust the bending by changing the rigidity of the elastic member 26 accordingly. That is, the adapter 20 changes the rigidity of the elastic member 26 according to the main body 10, for example, when the main body 10 is supported and lifted, the elastic member 26 bends more than necessary and cannot be balanced, or the elastic member 26 is not balanced. Therefore, it is possible to prevent a problem that the effect of absorbing the load is not achieved without bending due to the high rigidity. In this case, for example, by providing a plurality of adapters 20 in which the rigidity of the elastic member 26 is changed in a stepwise manner, the above-described problems can be avoided by using the adapter 20 in accordance with the main body 10. In addition, the adapter 20 can be considered to change in rigidity of the elastic member 26 due to multiple use or settling due to changes over time. In such a case, as described above, a new adapter 20 that can be replaced can be avoided in advance. However, there is an additional management cost for preparing or permanently preparing a new adapter 20 by constantly checking the rigidity reduction of the elastic member 26. I need it. Therefore, as another embodiment of the adapter 20, for example, by providing the rigidity of the elastic member 26 so that it can be finely adjusted, it can be formed so that it can be used for a long time with one adapter.

  Another embodiment of the adapter in which the rigidity of the elastic member can be finely adjusted will be described in detail with reference to FIG. As shown in FIG. 4, another embodiment of the adapter 40 is integrally formed by providing a joint 42 and a fitting portion 44 at both ends by an elastic member 46, similarly to the adapter shown in FIG. 2. The adapter 40 is integrally formed with a knurled portion 43 having a non-slip structure that is gripped and rotated at a lower portion of the joint 42. Further, unlike the adapter shown in FIG. 2, the adapter 40 is formed with a screw portion 44 c from an end portion connecting the elastic member 46 to the columnar outer wall surface of the fitting portion 44, and this screw portion 44 c. A cylindrical body 48 is formed in a cylindrical (ring) shape from above, and a threaded portion 48a is formed on the inner periphery to be screwed together. That is, the cylinder 48 is fastened to the fitting portion 44 by screwing of the screw portions 44c and 48a, so that it moves in the vertical direction (arrow shown in FIG. 4) around the outer periphery of the elastic member 46. The rigidity can be finely adjusted by increasing or decreasing the length of bending by absorbing the load of the elastic member 46. At this time, another embodiment of the adapter 40 can be adopted when the elastic member 46 is a reinforced spring or a reinforced rubber, but cannot be adopted by the elastic member using the fluid damper described above. However, the present invention does not limit the elastic member 46 to a reinforced spring or a reinforced rubber, and can be implemented by other methods using a fluid damper, for example, adjusting the fluid pressure of the fluid damper or the magnetic field of the magnetorheological fluid. It is also possible to finely adjust the rigidity by adjusting with, for example. As described above, in the other embodiment of the adapter shown in FIG. 4, in the case of the elastic member 46 made of a reinforced spring or a reinforced rubber, even if the rigidity is lowered due to repeated use or change over time, the cylindrical body 48 is moved so as to be wrapped along the outer periphery of the elastic member 46 by screwing with the fitting portion 44, and the bending length of the elastic member 46 is shortened, so that the rigidity can be kept high, and a new adapter is not prepared. Even one adapter can be used for a long time.

When the embodiment of the insulating operation rod support structure according to the present invention formed as described above is used, first, as shown in FIG. In the case of lifting up to the position, even if the hand of the insulation operation rod 30 cannot be maintained in the vertical direction and is inclined, the insulation effect due to the elastic members 26 and 46 of the adapters 20 and 40 shown in FIG. because it can absorb the eccentric load (load) to the joint 32, it is possible to sufficiently reduce the eccentric load applied to the joint 32.
On the other hand, as shown in FIG. 11, when the main body 10 </ b> B that performs the work of fixing the protective tube or shorting the electric wire is attached to the electric wire 2, the main body 10 is hooked on the electric wire 2 and fixed as shown in FIG. 5. However, since the insulating operation rod 30 is bent around the free end (dotted line shown in FIG. 5) by the elastic members 26 and 46 of the adapters 20 and 40 with respect to the fitting portion 12 of the fixed main body 10. , you can work in a wide range without damaging absorbs eccentric load (load) to the joint 32 due to the inclination of the insulated operating rod 30.

Thus, according to the embodiment of the insulating operating rod support structure according to the present invention, as shown in FIG. 1, by connecting the insulating operating rod 30 to the fitting portion 12 of the main body 10 via the adapters 20 and 40, When the main body 10A for mounting the protective tube shown in FIG. 6 or 9 is supported by the insulating operation rod 30 and lifted to the position of the electric wire 2, the adapter does not maintain the vertical direction but the adapter 10 by the elastic effect of the elastic members 26, 46 20, 40 reduces the eccentric load (load) to the joint 32 due to the inclination of the insulated operating rod 30, the main body 10 securely to prevent joint 32 or the entire device damage It can be attached to the electric wire 2.
In addition, according to the embodiment of the insulating operation rod support structure according to the present invention, by attaching the adapters 20 and 40 between the main body 10 and the insulation operation rod 30, the insulation operation rod 30 is in the working state as shown in FIG. It is possible to respond sufficiently even by approaching obliquely according to the angle (dotted line in FIG. 5), responding to various attachment / detachment situations, and increasing variations in indirect methods.
Further, in the present embodiment, as shown in FIG. 4, the rigidity of the elastic member 46 of the adapter 40 can be varied or finely adjusted. Therefore, even if the conditions such as the size and weight of the main body 10 are changed, 1 All of them can be accommodated by the insulating operation rod 30 of the book, and it is economical without cost.

As mentioned above, although the embodiment of the insulating operating rod support structure according to the present invention has been described in detail, the present invention is not limited to the above-described embodiment, and can be changed without departing from the gist thereof.
For example, the embodiment in which the engagement groove and the engagement pin are provided on both sides on the outer periphery of the fitting portion and the joint has been described in detail, but the embodiment is not limited thereto, and the connection strength of the fitting portion and the joint is increased. In order to improve, three or more engaging grooves and engaging pins may be provided on the outer periphery.

The block diagram which shows one Embodiment of the insulated operation-rod support structure by this invention. The enlarged view which shows the detail of the adapter shown in FIG. Operation | movement explanatory drawing which shows the operation | movement which attaches the fitting part of the adapter shown in FIG. 1 to the joint of an insulation operating rod. The figure which shows the other Example of the adapter shown in FIG. The figure which shows the state which connected the main body and the insulation operating rod with the adapter shown in FIG. The block diagram which shows one Embodiment of the conventional insulation operating rod support structure. The figure which shows the external appearance of the insulation operating rod shown in FIG. FIG. 7 is an enlarged view showing in detail the coupling structure of part C shown in FIG. 6. The figure which shows an attachment state in case a building exists in the attachment position of the main body shown in FIG. The block diagram which shows other embodiment of the conventional insulation operating rod support structure. The figure which shows the state which attaches the main body shown in FIG. 10 to an electric wire.

Explanation of symbols

1 worker
2 Electric wire 10 Main body 12 Fitting part 12a Engaging groove 12b End part 20 Adapter 22 Joint 22a Engaging pin 22b Protruding part 23 Knurling part 24 Fitting part 24a Engaging groove 24b End part 26 Elastic member 30 Insulating operation rod 32 Joint 32a Engagement pin 32b Projection 33 Knurled part

Claims (5)

In insulation operation rod support structure detachably attached to wire cables are live at altitude operations,
A main body having a first fitting portion at one end;
An insulation operating rod having a first joint at one end and holding the other end to support the body in an insulated state ;
A second joint formed at one end and having the same shape as the first joint, a second fitting portion formed at the other end and having the same shape as the first fitting portion, the second joint and the second fitting an elastic member which is formed between the engaging portion, the adapter having a a is provided,
When an eccentric load is applied to the first joint, the insulating joint is attached to the adapter by fitting the first joint to the second fitting portion and the second joint to the first fitting portion, respectively. Attached to the main body via
When an eccentric load is not applied to the first joint, the insulating operation rod support structure is characterized in that the insulating operation rod is directly attached to the main body by fitting the first joint to the first fitting portion . In the insulating operation rod support structure according to claim 1,
The insulating operating rod support structure according to claim 1, wherein the elastic member is made of a member that has elasticity and absorbs external force, such as a reinforcing spring, a reinforcing rubber, and a fluid damper. In the insulating operation rod support structure according to claim 2,
The adapter is provided with a plurality of adapters whose rigidity of the elastic member is changed in a stepwise manner, so that the adapter is replaced according to the main body. In the insulating operation rod support structure according to claim 2 or 3,
The adapter is provided with an insulating operation rod support structure in which the rigidity of the elastic member can be finely adjusted. In the insulating operation rod support structure according to any one of claims 1 to 4,
The body, in aerial of overhead conductors is detachable by indirect method on the wire as the electric wire to attach the protective tube apparatus, or device for fixing the protective tube, or the device to short-circuit the electric wire body Insulating operation rod support structure characterized by being.

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