JP2011239665A - Electric wire gripping device - Google Patents

Abstract

An electric wire gripping device capable of reducing a load applied to a temporary support device or the like.
An electric wire gripping device 60A receives a high-voltage line HW1 supported by a four-sided roller 45A below the high-voltage line HW1, and is slidably movable in the extending direction of the high-voltage line HW1; An upper bracket 63 provided opposite to the bracket and capable of sliding while holding the high-voltage line supported by the four-sided roller together with the lower bracket, and first and First and second biasing forces are applied so that the lower bracket and the upper bracket are positioned at intermediate positions in the range of slide movement restricted by the second slide restricting members 70 and 80 and the first and second slide restricting members. 2 compression springs 91 and 92.
[Selection] Figure 1

Description

The present invention relates to an electric wire gripping device that grips an electric wire supported instead of a utility pole by a temporary support device.

When reconstructing a utility pole or exchanging a metal brace that supports an electric wire on the utility pole, the electric wire supported on the utility pole is supported instead of the utility pole. A temporary support method vehicle equipped with a support device is often used (see, for example, Patent Document 1). As a tool for gripping the electric wire supported by such a temporary support device, for example, a tool called “camula”, a strain rod for indirect hot wire, or the like is used.

Utility Model Registration No. 2537589

However, when the electric wire is gripped using such a tool, the electric wire is in a fixed state, and there is a problem that a large load is applied to the temporary support device and the temporary support method vehicle.

This invention is made | formed in view of such a problem, and it aims at providing the electric wire holding | grip apparatus which can relieve | hang the load concerning a temporary support apparatus etc.

To achieve such an object, an electric wire gripping device according to the present invention is an electric wire gripping device that is attached to a temporary support device capable of supporting an electric wire and grips the electric wire supported by the temporary support device, It is attached to a support part (for example, four-sided rollers 45A to 45C in the embodiment) of the temporary support device that can support the electric wire, and the electric wire supported by the support part is received below the electric wire to the support part. On the other hand, the lower bracket is slidable in the extending direction of the electric wire, and is provided facing the lower bracket, and is slidable by gripping the electric wire supported by the support portion together with the lower bracket. An upper bracket, a slide restricting member that restricts the range of slide movement of the lower bracket and the upper bracket, and the slide restricting member. Bracket urging members that apply a urging force so that the lower bracket and the upper bracket are positioned at a predetermined reference position in the range of the sliding movement restricted by the first and second compression springs 91 (for example, the first and second compression springs 91 in the embodiment). , 92 and a spring-type damper).

In the above-described invention, when the predetermined reference position is one end position in the slide movement range of the lower bracket and the upper bracket, the support portion is rotatable to the bottom portion of the support portion. A first roller provided on the first roller, a second roller which is disposed to face the first roller and is substantially parallel to the first roller, and is rotatable, and on one end side of the first roller via the gap. And a third roller which is arranged to be substantially vertically opposed and rotatable, and a fourth roller which is arranged to be opposed to and substantially perpendicular to the other end side of the first roller via the gap portion. The electric wire can be supported and the second roller is swung while the electric wire is inserted through the gap surrounded by the roller, the second roller, the third roller, and the fourth roller. Swing opening and closing mechanism ( Example, tetrahedral roller opening and closing mechanism in the embodiment 50A~5
0C), the gap portion is configured to be openable and occluded, and a base member mounted and fixed on the first roller, and provided on the base member, and the upper bracket and the lower side The upper bracket is moved closer to the lower bracket using the force by which the swing opening and closing mechanism swings the second roller, and the upper bracket and the lower bracket are connected to the support portion. A link mechanism for gripping the supported electric wire, and the lower bracket is slidably attached to the base member together with the upper bracket, and the link mechanism is configured such that the lower bracket is connected to the one end portion. The upper bracket is configured to approach the lower bracket when sliding from position to the other Preferred.

In this case, the link mechanism is attached to the base member so as to be swingable on the one side so that the second roller can come into contact therewith, and one end side of the link mechanism is connected to the swing member so as to move the slide. A connecting member extending along the direction, and one end side is connected to the other end side of the connecting member, the other end side is swingably connected to the lower bracket and the one, and the upper bracket is connected to an intermediate portion And when the second roller swings by the swing opening / closing mechanism to close the gap, the second roller contacts the swing member and the second roller The pressed swing member and the actuating member connected to the swing member via the connecting member swing to the one side, and the upper bracket connected to the actuating member becomes the lower bracket. Near It can, is preferably configured such that the upper bracket by using the pressing force to grip the wire supported by the supporting part together with the lower bracket from the second roller.

In this case, the connecting member is a bracket urging member (for example, in the embodiment) that applies an urging force via the operating member so that the lower bracket and the upper bracket are positioned at the one end position. It is preferable to have a spring type damper.

Further, in this case, a link urging member (for example, a tension spring 160 in the embodiment) that applies an urging force so that the upper bracket is separated from the lower bracket by a predetermined interval is provided, and the second roller is provided by the swing opening / closing mechanism. Oscillates to close the gap, the second roller comes into contact with the oscillating member, and the oscillating member pressed by the second roller and the oscillating member and the coupling member are interposed therebetween. It is preferable that the connected actuating member swings to one side against the biasing force of the link biasing member, and the upper bracket connected to the actuating member approaches the lower bracket.

Further, in the above-described invention, when the predetermined reference position is an intermediate position in the slide movement range of the lower bracket and the upper bracket, the support portion is rotatably provided at the bottom portion of the support portion. A first roller, a second roller which is arranged to face and substantially parallel to the first roller and is rotatable, and is substantially perpendicular to one end of the first roller via the gap. A third roller that is rotatably disposed opposite to the first roller, and a fourth roller that is rotatably disposed opposite to the other end side of the first roller via the gap portion, the first roller, The electric wire can be supported in a state where the electric wire is inserted into the gap portion surrounded by the second roller, the third roller, and the fourth roller, and the lower bracket is the first bracket. Above the roller It is preferably mounted to ride movable.

In this case, the support portion is configured to be able to open and close the gap portion using a swing opening / closing mechanism (for example, the four-sided roller opening / closing mechanisms 50A to 50C in the embodiment) that swings the second roller. A parallel link mechanism that connects the upper bracket and the lower bracket in parallel, and a parallel link biasing member that applies a biasing force so that the upper bracket is separated from the lower bracket by a predetermined distance (for example, Tension spring 6 in the embodiment
7), and when the second roller swings by the swing opening / closing mechanism and closes the gap, the second roller contacts the upper bracket and is pressed by the second roller. The upper bracket moves closer to the lower bracket against the urging force of the parallel link urging member, and the upper bracket is supported by the support portion using the pressing force from the second roller. It is preferred to grip with the lower bracket.

According to the present invention, the lower bracket and the upper bracket are configured to be slidable in the extending direction of the electric wire, and the lower bracket and the upper bracket are positioned at a predetermined reference position in the range of sliding movement regulated by the slide regulating member. Since the side bracket and the upper bracket receive a biasing force from the bracket biasing member, the lower bracket and the upper bracket that grip the electric wire slide in a direction that relaxes the tension from the electric wire within the range restricted by the slide restricting member. It is possible to reduce the load on the temporary support device and the like.

In the above-described invention, when the predetermined reference position is one end position in the slide movement range of the lower bracket and the upper bracket, the second pivoted by the swing opening / closing mechanism provided in the support portion. It is preferable that the upper bracket connected by the link mechanism grips the electric wire together with the lower bracket using the pressing force from the roller.
The electric wire can be easily gripped using the operation of the temporary support device. The link mechanism is
When the lower bracket slides from one end position to the other, it is preferable that the upper bracket is configured to approach the lower bracket. In this way, the lower bracket and the upper bracket that grip the electric wire are When sliding from one end position to the other, the upper bracket approaches the lower bracket and the force to grip the wire increases, so the tension from the wire acts toward the other of the lower bracket and the upper bracket. In addition, the lower bracket and the upper bracket can grip the electric wire without slipping.

In this case, the link mechanism is configured such that when the second roller is closed by the swing opening / closing mechanism, the second roller contacts the swing member, the swing member pressed by the second roller, and the swing member and the connecting member The actuating member coupled via the first member swings to one side, the upper bracket coupled to the actuating member approaches the lower bracket, and the upper bracket is supported by the support portion using the pressing force from the second roller. It is preferable that the electric wire is held together with the lower bracket. In this way, when the lower bracket and the upper bracket holding the electric wire are slid from one end position to the other, they are connected to the lower bracket. Since the actuated member is swung to one side so as to be pulled by the connecting member, the force with which the upper bracket approaches the lower bracket and grips the electric wire is increased. Can grip without slippage of the wire.

In this case, the connecting member preferably has a bracket urging member. Thus, if the connecting member is also used as the bracket urging member, the configuration of the electric wire gripping device can be simplified. Further, when the lower bracket and the upper bracket holding the electric wire slide to the other side against the urging force of the connecting member (bracket urging member), for example, the connection is made by the elastic force of the connecting member (bracket urging member). Since the force by which the member swings the actuating member in one direction, that is, the force by which the upper bracket grips the electric wire together with the lower bracket increases, the electric wire can be gripped more reliably without sliding.

In this case, it is preferable to provide a link urging member that applies an urging force so that the upper bracket is separated from the lower bracket by a predetermined distance. In this case, when the second roller is opened by the swing opening / closing mechanism. The gripping of the electric wire by the lower bracket and the upper bracket can be easily released.

In the above-described invention, when the predetermined reference position is an intermediate position in the slide movement range of the lower bracket and the upper bracket, the lower bracket is provided at the bottom of the support portion with respect to the support portion of the temporary support device. It is preferable that the first and second rollers are slidably mounted on the first roller. In this manner, the lower bracket and the upper bracket can be slid with a simple configuration.

In this case, the upper bracket connected by the parallel link mechanism holds the electric wire together with the lower bracket using the pressing force from the second roller that is swung by the swing opening / closing mechanism provided in the support portion. In this way, the electric wire can be easily gripped using the operation of the temporary support device.

(A) is a perspective view of the electric wire holding apparatus which concerns on 1st Embodiment, (b) is a side view of the electric wire holding apparatus which concerns on 1st Embodiment. It is a perspective view of a temporary support method vehicle. It is a side view of a temporary support apparatus. It is a top view of a temporary support apparatus. It is a front view of a temporary support apparatus. It is a perspective view of the electric wire holding device to which the electric wire holding device was attached. It is a 1st perspective view of the electric wire holding apparatus which concerns on 2nd Embodiment. It is a 2nd perspective view of the electric wire holding apparatus which concerns on 2nd Embodiment. It is a 3rd perspective view of the electric wire holding apparatus which concerns on 2nd Embodiment. It is a 4th perspective view of the electric wire holding apparatus which concerns on 2nd Embodiment. It is a front view of the electric wire holding apparatus which concerns on 2nd Embodiment. It is a front view which shows a mode that the electric wire holding apparatus which concerns on 2nd Embodiment hold | grips an electric wire in order of (a)-(c). It is a 1st perspective view of the electric wire holding apparatus which concerns on 3rd Embodiment. It is a 2nd perspective view of the electric wire holding apparatus which concerns on 3rd Embodiment. It is a 3rd perspective view of the electric wire holding apparatus which concerns on 3rd Embodiment. It is a front view which shows a mode that the electric wire holding apparatus which concerns on 3rd Embodiment holds an electric wire in order of (a)-(c).

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. A temporary support method vehicle 1 to which the electric wire gripping device according to the first embodiment can be attached is shown in FIG. The temporary support method vehicle 1 is capable of traveling with front and rear wheels 3a and 3b, and is configured based on a truck vehicle having a driving cab 2a at the front. On the vehicle body 2 of the truck vehicle, there is disposed a turntable 4 that is driven by a turning motor (not shown) that is a hydraulic motor so as to be horizontally turnable. A base 5 is pivotally connected to the swivel 4 and a boom 5 is attached. The boom 5 is raised and lowered by a raising and lowering cylinder 7. The boom 5 includes a base boom 5a, an intermediate boom 5b, and a tip boom 5c that are nested and combined with a built-in boom telescopic cylinder (
(Not shown) is configured to be extendable.

The tip boom 5c has a boom head 5d at the tip, and a temporary support device 20 capable of supporting electric wires is attached to the boom head 5d instead of a utility pole. In addition, outriggers 9 that are extendable downward are provided at four positions on the front, rear, left, and right of the vehicle body 2. When performing temporary support work, the outrigger 9 is extended to the side of the vehicle body 2 and extended downward. The vehicle body 2 can be lifted and supported. Further, at the rear part of the vehicle body 2, the boom 5 and the temporary support device 20 are provided.
An operating device 10 for performing operations such as these is attached.

As shown in FIG. 3, the temporary support device 20 includes a vertical post 21 pivoted to the boom head 5d.
A bracket 26 supported on the vertical post 21 so as to extend substantially horizontally, and the bracket 2
6, the arm part 30 that extends in parallel with the extending direction of the bracket 26, and the three electric wire supports 4 that are provided on the arm part 30 and can respectively support the three high-voltage lines HW <b> 1 to HW <b> 3.
0A to 40C and a ground wire support 40G that is provided on the arm portion 30 and can support the ground wire GW. Each of the three high-voltage lines HW1 to HW3 extends in parallel with each other so as to be substantially horizontally aligned, and a plurality of utility poles P (see FIG. 5) arranged at predetermined intervals.
For example). The ground wire GW includes three high-voltage lines HW1 to HW3.
And is supported by the same power pole P as the three high-voltage lines HW1 to HW3. Also, three low-voltage lines LW1 to LW3 are arranged below the three high-voltage lines HW1 to HW3, and the three low-voltage lines LW1 to LW3 extend in parallel to each other so as to be aligned substantially horizontally. 3
It is supported by the same utility pole P as the high-voltage lines HW1 to HW3.

The vertical post 21 is pivotally attached to the boom head 5d so that the lower portion thereof can swing up and down. Leveling cylinder (between the boom head 5d and the vertical post 21)
The vertical post 21 is controlled to swing so that the upper portion of the vertical post 21 always extends substantially vertically regardless of the undulation angle of the boom 5. The bracket 26 can be swung freely on the vertical post 21 thus held substantially vertically (
The bracket 26 is held so as to extend substantially horizontally regardless of the undulation angle of the boom 5. Further, the vertical post 21 is provided with a swing motor 22 (hydraulic motor: see FIG. 4) and a swing mechanism (not shown) for swinging the bracket 26 with respect to the vertical post 21.

The bracket 26 supports the arm portion 30 so as to extend in parallel with the extending direction of the bracket 26. That is, the first and second arms 33 and 35 constituting the arm portion 30 are normally held so as to extend substantially horizontally regardless of the undulation angle of the boom 5. Further, as shown in FIGS. 3 and 5, the bracket 26 includes a rotation motor 27 (hydraulic motor) and a rotation mechanism (not shown) that rotate the arm portion 30 about an axis extending in the extending direction of the bracket 26 as a rotation axis. Is provided. As shown in FIG. 5, the rotary motor 27 and the rotation mechanism cause the bracket 26 to have three electric wire supports 40A to 40C and a ground wire support 40.
A vertical position where G can support the electric wire in a substantially vertical direction, and the three electric wire supports 40A to 40C
The ground wire support 40G supports the arm portion 30 so as to be rotatable between a horizontal position facing the substantially horizontal direction. However, the arm portion 30 can be rotated beyond this range.

As shown in FIGS. 3 and 4, the arm unit 30 includes an arm base 31 supported by the bracket 26, and first and second arms 33 that are supported by the arm base 31 and extend parallel to the extending direction of the bracket 26. 35 and a sub arm 37 attached to the side of the first arm 33 and extending in parallel with the first arm 33. The arm base 31 is configured such that the first and second arms 33 and 35 (and the sub-arm 37) are replaced by the first and second arms 33 and 35 by a swing cylinder 32 (see FIG. 5) disposed on the arm base 31. The first and second arms 33 and 35 are supported so as to be swingable between a horizontal support position where 35 is directed substantially in the horizontal direction and a vertical support position where the first and second arms 33 and 35 are directed vertically downward. Normally, the first and second arms 33 and 35 are supported by the arm base 31 in a state where they are positioned at the horizontal support position.

The first arm 33 is configured to be extendable and retractable by a built-in first arm telescopic cylinder (not shown) by combining the first base arm 33a and the first distal arm 33b in a nested manner. A first electric wire support 40A is attached to an upper center portion of the first base end arm 33a so as to extend perpendicularly to the first base end arm 33a. A third wire support tool 40C is attached to the upper end of the first tip arm 33b in parallel with the first wire support tool 40A so as to extend perpendicular to the first tip arm 33b. Accordingly, when the first arm 33 is expanded and contracted, the third wire support tool 40C slides with respect to the first wire support tool 40A, and the interval between the first wire support tool 40A and the third wire support tool 40C is increased. Can be changed. Further, a sub arm 37 is attached to a side end of the first base end arm 33a.

The second arm 35 is arranged in parallel to the side of the first arm 33, and the second base end arm 35a and the second front end arm 35b are combined in a nested manner, so that a built-in second arm telescopic cylinder (
(Not shown) so that it can be expanded and contracted. The upper end of the second tip arm 35b has a first
The second electric wire support 40B is attached so as to extend perpendicular to the second tip arm 35b in parallel with the electric wire support 40A (and the third electric wire support 40C). Thereby, when the 2nd arm 35 is expanded-contracted, the 2nd electric wire support tool 40B slides with respect to the 1st electric wire support tool 40A, and the space | interval of the 1st electric wire support tool 40A and the 2nd electric wire support tool 40B is made. Can be changed.

The sub arm 37 is disposed in parallel to the side of the first arm 33 opposite to the second arm 35, and the base end portion of the sub arm 37 is pivotally attached to the side tip of the first base arm 33a. A ground wire support 40G is attached to the upper end of the sub arm 37 so as to extend perpendicular to the sub arm 37 in parallel with the first to third electric wire supports 40A to 40C. As shown in FIG. 4, the sub arm 37 is fixed and used while facing the distal end side of the arm portion 30, but is rotated and fixed so as to face the proximal end side of the arm portion 30 when not in use. It may be. Thereby, the temporary support apparatus 20 can be made compact when the boom 5 is stored.

As shown in FIG. 3, the first electric wire support 40A is attached to the center upper portion of the first base end arm 33a and extends perpendicularly to the first base end arm 33a.
A first four-sided roller 45A that is attached to the tip (upper part) of A and can support an electric wire (for example, the first high-voltage line HW1). The first four-sided roller 45A has four rollers provided to be opposed to each other in the up, down, left and right directions, and is supported by inserting an electric wire through a rectangular gap formed by the four rollers. . The electric wire insertion direction (the direction in which the rectangular gap extends) in the first four-sided roller 45A is set to be perpendicular to the extending direction of the first arm 33 and the first electric wire support 40A. . In addition, on the side of the first four-sided roller 45A, an open / close cylinder (not shown) is used to make the first four-sided roller 45A.
There is provided a first four-sided roller opening / closing mechanism 50A capable of swinging and opening the roller located at the tip (upper part).

The second wire support tool 40B is attached to the upper end of the second tip arm 35b and extends perpendicularly to the second tip arm 35b, and the tip (upper portion) of the lever 41B.
The second four-sided roller 45B that can be attached to and can support the electric wire (for example, the second high-voltage line HW2)
And is configured. The second four-sided roller 45B has the same configuration as the first four-sided roller 45A, and the end of the second four-sided roller 45B (not shown) is provided on the side of the second four-sided roller 45B (not shown). A second four-sided roller opening / closing mechanism 50B capable of swinging and opening the roller located in the upper part) is provided. The electric wire insertion direction (direction in which the rectangular gap extends) in the second four-sided roller 45B is set to be perpendicular to the extending direction of the second arm 35 and the second electric wire support 40B. .

The third electric wire support 40C is attached to the upper end of the first tip arm 33b and extends perpendicularly to the first tip arm 33b, and the tip (upper portion) of the lever 41C.
A third four-sided roller 45C that is attached to and can support an electric wire (eg, the third high-voltage line HW3)
And is configured. The third four-sided roller 45C has the same configuration as that of the first four-sided roller 45A. A side portion of the third four-sided roller 45C uses an opening / closing cylinder (not shown) to provide a tip portion ( A third four-sided roller opening / closing mechanism 50C that can swing open / close the roller located in the upper part) is provided. The electric wire insertion direction (the direction in which the rectangular gap extends) in the third four-sided roller 45C is set to be perpendicular to the extending direction of the first arm 33 and the third electric wire support 40C. .

The ground wire support 40G is attached to the top end of the sub arm 37 and extends perpendicularly to the sub arm 37, and the ground wire support 40G is attached to the tip (upper part) of the pillar portion 43 and extends in the same direction as the pillar 43. And a fourth four-sided roller 45G that is attached to the tip (upper part) of the lever 41G and can support the electric wire (ground wire GW). The fourth four-sided roller 45G has the same configuration as that of the first four-sided roller 45A. On the side of the fourth four-sided roller 45G, an opening / closing cylinder (not shown) is used to provide a tip end ( A fourth four-sided roller opening / closing mechanism 50G that can swing open / close the roller located in the upper part) is provided. The electric wire insertion direction (the direction in which the rectangular gap extends) in the fourth four-sided roller 45G is set to be perpendicular to the extending direction of the sub arm 37 and the ground wire support 40G.

Instead of the utility pole P, the three high-voltage lines HW are used by using the temporary support construction vehicle 1 configured as described above.
In order to support 1 to HW 3 and the ground wire GW, first, various parameters are input to the controller device 10. Next, in order to stably support the vehicle body 2, a jack operation switch (not shown) or the like of the operation device 10 is operated to extend the outrigger 9 to the side of the vehicle body 2 and extend downward. Next, a boom operation switch (not shown) of the operation device 10 is operated to move the temporary support device 20 attached to the tip of the boom 5 below the three high-voltage lines HW1 to HW3.

As shown in FIG. 2, when the boom 5 is stored, the bracket 26 and the arm portion 30 of the temporary support device 20 swing with respect to the vertical post 21 so as to face the base end side of the boom 5, and the arm portion 30 is held in a state rotated to the above-mentioned horizontal position. Further, the first and second arms 33 and 35 of the arm portion 30 are held at the horizontal support position, and the rollers located at the tip portions of the first to fourth four-sided rollers 45A to 45C and 45G are in an open state. Therefore, when the temporary support device 20 is moved below the three high-voltage lines HW1 to HW3, the temporary support device operation switch (not shown) of the operation device 10 is operated to move the bracket 26 and the arm portion 30 to the vertical post. The head 21 is swung toward the tip of the boom 5 so as to protrude from the tip of the boom 5 and the arm 30 is held in a state of being rotated to the horizontal position. in this way,
In the state where the arm portion 30 is rotated to the horizontal position, as shown in FIG.
Since A to 40C and the ground wire support 40G are oriented substantially in the horizontal direction and the height of the temporary support device 20 is reduced, the low voltage lines LW1 to LW3 and the like exist below the three high voltage lines HW1 to HW3. Also, the temporary support device 20 can be easily approached from the side between the three high-voltage lines HW1 to HW3 and the low-voltage lines LW1 to LW3.

Further, when the temporary support device 20 is moved below the three high-voltage lines HW1 to HW3, the first and second arms 33 and 3 are operated by operating a temporary support device operation switch (not shown) of the operation device 10.
5 is expanded and contracted to adjust the pitch interval of the three electric wire supports 40A to 40C to be the same as the pitch interval of the three high voltage lines HW1 to HW3, and vertically below the three high voltage lines HW1 to HW3. The three wire supporters 40A to 40C are positioned in parallel with each other.

Regarding the sub-arm 37, the length of the sub-arm 37 is manually adjusted in advance so that the ground wire support 40G is positioned in parallel below the ground wire GW. Further, when the temporary support device 20 is moved below the three high-voltage lines HW1 to HW3, the vertical distance between the three high-voltage lines HW1 to HW3 and the temporary support device 20 is the length of the three electric wire supports 40A to 40C. The length of the column portion 43 is adjusted so that the vertical distance between the ground wire GW and the temporary support device 20 at this time is substantially the same as the length of the ground wire support 40G. Has been adjusted.

The temporary support device 20 is moved below the three high-voltage lines HW1 to HW3, and the three high-voltage lines HW are moved.
When the three wire support tools 40A to 40C are positioned in parallel vertically below 1 to HW3, and the ground wire support tool 40G is positioned in parallel vertically below the ground wire GW, the temporary support of the operating device 10 is provided. A device operation switch (not shown) is operated to rotate the arm unit 30 from the horizontal position to the vertical position. Then, three electric wire support tools 40A-40
C and the ground wire support 40G each support the electric wire in a substantially vertical direction.

That is, as shown in FIG. 3 and FIG. 5, the first wire support 40A is rotated upward so as to face the substantially vertical direction, and the first wire support tool 40A is first in the gap portion of the first four-sided roller 45A where the roller at the tip end is opened. The high voltage line HW1 is inserted, and the first high pressure line HW1 is supported by the first four-sided roller 45A.
The second electric wire support 40B is rotated upward so as to face in a substantially vertical direction, and the second high-voltage line HW2 is inserted into the gap portion of the second four-surface roller 45B in which the roller at the tip end is opened, and the second four-surface The second high voltage line HW2 is supported by the roller 45B. Further, the third electric wire support 40C is rotated upward so as to be directed substantially in the vertical direction, and the third high-voltage line HW3 is inserted into the gap portion of the third four-surface roller 45C in which the roller at the tip is opened, and the third four-surface The roller 45C supports the third high voltage line HW3. Similarly, the ground wire support 40G is rotated upward so as to face in a substantially vertical direction, and the ground wire GW is inserted into the gap portion of the fourth four-sided roller 45G where the roller at the tip end is opened, and the fourth four-sided roller 45G. Thus, the ground wire GW is supported.

The arm unit 30 is rotated from the horizontal position to the vertical position, and the three electric wire supports 40A to 40C
When the ground wire support tool 40G supports the three high-voltage lines HW1 to HW3 and the ground wire GW, the temporary support device operation switch (not shown) of the operation device 10 is operated to operate the first to first The first to fourth four-sided roller opening / closing mechanisms 50A to 50C and 50G are operated so as to close the tip portions of the four-four-sided rollers 45A to 45C and 45G, respectively. As described above, as shown in FIGS. 3 and 5, the temporary support device 20 can support the three high-voltage lines HW <b> 1 to HW <b> 3 and the ground wire GW instead of the utility pole P.

Such an electric wire temporary support operation is also referred to as a pull-in operation, and the temporary support method vehicle 1 of the present embodiment can perform not only the pull-in operation but also a so-called pull-in operation. For example, as shown in FIG. 6, the electric wire gripping devices 60 </ b> A to 60 </ b> C of the present embodiment are respectively connected to the first to third four-sided rollers 45 </ b> A.
It attaches to -45C, and an electric wire (for example, three high voltage wires HW1-HW3) can be held by the electric wire holding devices 60A-60C. Therefore, the first to third four-sided rollers 45A to 45C and the first to third electric wire gripping devices 60A to 60C attached to these will be described in detail with reference to FIGS.

As shown in FIG. 1, the first four-sided roller 45A includes first to fourth rollers 51 to 54, a roller holding member 55, and the first four-sided roller opening / closing mechanism 50A described above. As described above, an electric wire (for example, the first high-voltage line HW1) is inserted into and supported by the rectangular gap K formed by the first to fourth rollers 51 to 54. Note that the second to fourth four-sided rollers 45B to 45C and 45G have the same configuration as the first four-sided roller 45A as described above, and a detailed description thereof will be omitted by describing only the first four-sided roller 45A.

The roller holding member 55 is formed in a U-shaped cross-sectional shape with a distal end side (upper side) opened,
It is attached to the tip (upper part) of the first insulator 41A. Near the base end (bottom) of the roller holding member 55, two first shafts 56 arranged in parallel along the extending direction of the electric wires are attached, and the first roller 51 is attached to each of the first shafts 56. It can be mounted freely. Thus, the first roller 51 is disposed at the base end portion (bottom portion) of the first four-sided roller 45 </ b> A so as to be rotatable about the central axis of the first roller 51.

Two third shafts 58 arranged in parallel along the extending direction of the electric wires are attached to the inner side of one of the roller holding members 55 (the direction facing the proximal end side of the arm portion 30). A third roller 53 is rotatably attached to the shaft 58. As a result, the third roller 53 is disposed so as to be substantially perpendicularly opposed to one end of the first roller 51 so as to be rotatable about the central axis of the third roller 53 as a rotation axis. Further, the other of the roller holding members 55 (the arm portion 30).
Two fourth shafts 59 arranged in parallel along the direction of extension of the electric wire are attached to the inner side of the side facing the front end side of the wire, and the fourth roller 54 is rotatable on each of the fourth shafts 59. Attached to. As a result, the fourth roller 54 is disposed to face the other end side of the first roller 51 substantially perpendicularly so as to be rotatable about the central axis of the fourth roller 54 as a rotation axis.

As described above, the first roller 51, the third roller 53, and the fourth roller 54 are rotatably held by the roller holding member 55. A thin plate-like slide support member 49 capable of supporting the slide guide 96 of the electric wire gripping device 60A is attached to the outer side of the other side of the roller holding member 55 (the direction facing the distal end side of the arm portion 30).

The first four-sided roller opening / closing mechanism 50A is attached to the outer side of one of the roller holding members 55 (the direction facing the base end side of the arm portion 30), and uses an expansion / contraction operation of a built-in opening / closing cylinder (not shown). Thus, the second roller 52 located at the tip (upper part) of the first four-sided roller 45A is configured to be able to swing open and close. Two second shafts 57 arranged in parallel along the extending direction of the electric wires are attached to the swinging portion of the first four-sided roller opening / closing mechanism 50A, and the second roller 52 rotates on each of the second shafts 57. Can be attached freely. As a result, when the first four-surface roller opening / closing mechanism 50A closes the second roller 52 located at the tip (upper part) of the first four-surface roller 45A, the second roller 52 rotates the central axis of the second roller 52. The first axis is rotatable
The roller 51 is disposed to face the roller 51 in a substantially parallel manner with a gap K. That is, the gap portion K can be opened and closed using the first four-sided roller opening / closing mechanism 50A.

As shown in FIG. 1, the first electric wire gripping device 60A includes a lower bracket 61 that is supported by the first roller 51 and is slidable, an upper bracket 63 that grips the electric wire together with the lower bracket 61, A parallel link mechanism 65 that connects the lower bracket 61 and the upper bracket 63 in parallel, a tension spring 67 attached to the upper bracket 63, and first and second slide restricting members that restrict sliding movement of the lower bracket 61 70, 80,
It has two compression springs 91 and 92, and is attached to the first four-sided roller 45A. The second and third electric wire gripping devices 60B and 60C are provided with the second and third four-sided rollers 4 respectively.
Although it is attached to 5B and 45C, respectively, it is the same structure as 60 A of 1st electric wire gripping apparatuses, and detailed description is abbreviate | omitted by description of only 60 A of 1st electric wire gripping apparatuses.

The lower bracket 61 is formed in a rectangular bar shape using a metal material, and is supported by the first roller 51 so as to be slidable. Thereby, the lower bracket 61 is attached to the first four-sided roller 45A.
The electric wire (for example, the first high-voltage line HW1) supported by the first electric wire can be received at the lower side of the electric wire and slid in the extending direction of the electric wire with respect to the first four-surface roller 45A. The upper bracket 63 is formed in a rectangular bar shape using a metal material, is connected to the lower bracket 61 using a parallel link mechanism 65, and is disposed to face the lower bracket 61 substantially in parallel. Accordingly, the upper bracket 63 can grip the electric wire together with the lower bracket 61 by narrowing the distance from the lower bracket 61 using the operation of the first four-surface roller opening / closing mechanism 50A.

One end of the tension spring 67 is attached to the spring attachment screw 71 of the first slide restricting member 70, and the other end is attached to the spring attachment screw 64 of the upper bracket 63. Then, the tension spring 67 uses the elastic force to the upper bracket 63.
The upper bracket 63 applies a biasing force in a direction away from the lower bracket 61.

The first slide restricting member 70 is formed in a plate shape using a metal material, and is joined to a side surface on one end side (left side in FIG. 1A) of the lower bracket 61 by welding or the like. A stopper 72 with which the upper bracket 63 can come into contact is provided on the upper portion of the first slide restricting member 70. When the upper bracket 63 pulled by the tension spring 67 comes into contact with the stopper 72, the upper bracket 63 is Predetermined distance from the lower bracket 61 (interval where wires can be inserted and removed)
It is configured to leave only.

A first guide screw 75 extending in parallel with the lower bracket 61 is inserted into the first slide restricting member 70 so as to be slidable. One end side of the first guide screw 75 (FIG.
) And a double nut (not shown) is screwed onto the first guide screw 7
5 on the other end side (the right side in FIG. 1A), the roller holding member 55 of the first four-sided roller 45A.
A contact plate 77 that can be brought into contact with is screwed together. A first compression spring 91 is attached between the first slide regulating member 70 and the contact plate 77 in the first guide screw 75. The first compression spring 91 applies an urging force to the contact plate 77 in a direction in which the contact plate 77 presses the roller holding member 55 using the elastic force.

The second slide regulating member 80 is formed in a plate shape using a metal material, and is joined to the side surface on the other end side (the right side in FIG. 1A) of the lower bracket 61 by welding or the like. A second guide screw 85 extending parallel to the lower bracket 61 is inserted into the second slide restricting member 80 so as to be slidable. A contact plate 87 capable of contacting the roller holding member 55 of the first four-sided roller 45 </ b> A is screwed to one end side (the left side in FIG. 1A) of the second guide screw 85 and the second guide screw 85. A double nut 86 is screwed to the other end side (the right side in FIG. 1A). A second compression spring 92 is attached between the second slide restricting member 80 and the contact plate 87 in the second guide screw 85. The second compression spring 92 uses its elastic force,
A biasing force is applied to the contact plate 87 in a direction in which the contact plate 87 presses the roller holding member 55.

A guide plate 95 is joined to the first slide restricting member 70 and the second slide restricting member 80 so as to extend in parallel with the lower bracket 61. Guide plate 95
Is formed in a thin plate shape using a metal plate material, and is joined to the side portions of the first slide restriction member 70 and the second slide restriction member 80 by welding or the like. Further, the guide plate 95 includes
A slide guide 96 is coupled so as to extend parallel to the lower bracket 61. The slide guide 96 is formed in a U-shaped bar shape in cross-section using a hard resin material having a smooth surface, and is positioned between the first slide restriction member 70 and the second slide restriction member 80. Coupled to plate 95. Inside the slide guide 96, the contact plates 77 and 87 of the first and second guide screws 75 and 85 are accommodated so as to be slidable (in the extending direction of the slide guide 96).

Here, the distance between the slide guide 96 and the lower bracket 61 is set to be slightly larger than the thickness of the portion of the roller holding member 55 that holds the fourth roller 54. Further, the first guide screw 75 that receives the urging force from the first and second compression springs 91 and 92, respectively.
The distance between the contact plate 77 and the contact plate 87 of the second guide screw 85 is set to be smaller than the length of the roller holding member 55 (the direction of insertion of the electric wire). As a result, the two caul plates 77
, 87 with the gap between the slide guide 96 and the lower bracket 61 being inserted, a portion of the roller holding member 55 that holds the fourth roller 54 is inserted into the first wire gripping device. 60A can be easily attached to and detached from the first four-sided roller 45A.

At this time, the slide guide 96 is supported by the slide support member 49 of the first four-sided roller 45 </ b> A so as to be slidable in a state where the edge of the slide guide 96 is close to the side of the roller holding member 55. At this time, the lower bracket 61 is supported by the first roller 51 so as to be slidable in a state of being close to the fourth roller 54. Therefore, the lower bracket 61 can slide along the slide guide 96 linearly (without bending) in the extending direction of the electric wire.

Using the wire gripping devices 60A to 60C configured as described above, the three wire support tools 40 are used.
In order to grip the three high-voltage lines HW1 to HW3 supported by A to 40C, first, first to third
Are attached to the first to third four-sided rollers 45A to 45C, respectively. In the state where the first electric wire gripping device 60A does not hold the electric wire, the first compression spring 91 is used.
The pressing plate 77 of the first guide screw 75 presses the roller holding member 55 in response to the urging force from the second compression screw 92, and the pressing plate 87 of the second guide screw 85 receives the urging force from the second compression spring 92. In order to press the member 55, the lower bracket 61 and the upper bracket 63 are positioned at an intermediate position in the slide movement range restricted by the first and second slide restriction members 70 and 80. Further, the slide movement range of the lower bracket 61 and the upper bracket 63 is such that the first slide restricting member 70 joined to one end side of the lower bracket 61 (the left side in FIG. The second slide restricting member 80 joined to the other end side (the right side in FIG. 1A) of the lower bracket 61 from the position in contact with the holding member 55 comes into contact with the roller holding member 55 through the contact plate 87. The range to the position.

Next, as in the case of the pulling-in operation, the temporary support device 20 attached to the tip of the boom 5 is used.
Is moved below the three high-voltage lines HW1 to HW3. Temporary support device 20 is connected to three high-voltage lines HW
1 to HW3, three electric wire supports 40A to 40C are positioned in parallel below the three high-voltage lines HW1 to HW3, respectively, and the ground wire support 40G is vertically below the ground wire GW. When the two are positioned in parallel, the arm unit 30 is rotated from the horizontal position to the vertical position as in the case of the pulling-in operation. Then, the three wire support tools 40A to 40C and the ground wire support tool 40G each support the wire in the substantially vertical direction. At this time, the boom 5 is operated by a boom operation switch (not shown) of the operation device 10. The three high-voltage lines HW1 to HW3 are connected to the electric wire gripping devices 60A to 60C, respectively.
The position is adjusted so that it can be received by the lower bracket 61. For example, the lower bracket 61 in the first electric wire gripping device 60A is the first four-sided roller 45 of the first electric wire support 40A.
The first high-voltage line HW1 supported by A is received from below.

The arm unit 30 is rotated from the horizontal position to the vertical position, and the three electric wire supports 40A to 40C
When the ground wire support 40G and the ground wire GW support the three high-voltage lines HW1 to HW3 and the ground wire GW, the temporary support device operation switch (not shown) of the operation device 10 is operated and opened. The first to fourth four-sided roller opening / closing mechanisms 50A to 50C and 50G are operated so as to close the tip portions of the first to fourth four-sided rollers 45A to 45C and 45G, respectively. At this time, for example, when the second roller 52 swings by the first four-sided roller opening / closing mechanism 50 </ b> A to close the gap K (the portion surrounded by the second roller 52 is closed), the second roller 52 is moved to the upper bracket 63. At the same time, the upper bracket 63 pressed by the second roller 52 approaches the lower bracket 61 against the urging force of the tension spring 67, and the upper bracket 63 uses the pressing force from the second roller 52 to 1 Hold the high voltage line HW1 together with the lower bracket 61. The same applies to the second and third four-sided roller opening / closing mechanisms 50B and 50C.

Thus, using the first to third electric wire gripping devices 60A to 60C, the three electric wire support tools 4 are used.
The three high-voltage lines HW1 to HW3 supported by 0A to 40C (four-sided rollers 45A to 45C) can be gripped. At this time, the lower bracket 61 and the upper bracket 63 holding the electric wires (three high-voltage wires HW1 to HW3) resist the urging force of the first compression spring 91 or the second compression spring 92 due to the tension from the electric wires. Then, the lower bracket 61 and the upper bracket 63 slide to one end side or the other end side (in the direction in which the electric wire extends), and either the first slide restricting member 70 or the second slide restricting member 80 is the contact plate. And stops in contact with the roller holding member 55. Thereby, the lower bracket 61 and the upper bracket 63 can be slid and moved in the direction of relaxing the tension from the electric wire.

In addition, with a general electric wire, for example, when the distance (diameter) between utility poles is 40 m and the season is winter,
When the electric wire is gripped using a conventional tool, a load of about 2900 N is applied to the temporary support device. On the other hand, when the electric wire is gripped using the electric wire gripping devices 60A to 60C of the present embodiment and the lower bracket 61 and the upper bracket 63 are slid 100 mm at this time, the load applied to the temporary support device 20 is reduced to about 1000N. This has been confirmed by the inventors of the present application.

As described above, according to the first embodiment, the lower bracket 61 and the upper bracket 63 are configured to be slidable in the direction of extension of the electric wire and are restricted by the first and second slide restriction members 70 and 80. Since the lower bracket 61 and the upper bracket 63 receive a biasing force from the first compression spring 91 and the second compression spring 92 (bracket biasing member) so as to be positioned at an intermediate position in the range of the slide movement performed, The gripped lower bracket 61 and upper bracket 63 are the first and second slide restricting members 70, 80.
Can be slid in a direction that relaxes the tension from the wire (both with respect to the intermediate position in the case of the first embodiment) within the range regulated by the above, and the load on the temporary support device 20 and the like is alleviated Is possible.

Note that the lower bracket 61 is preferably slidably mounted on the first roller 51 provided at the bottom of the four-sided rollers 45A to 45C (supporting portions). In this way, the lower bracket 61 is mounted. The upper bracket 63 can be slid with a simple configuration.

Further, the upper bracket 63 connected by the parallel link mechanism 65 uses the pressing force from the second roller 52 swung by the four-sided roller opening / closing mechanisms 50A to 50C.
It is preferable to hold the electric wire together with 1, and in this way, the electric wire can be easily held using the operation of the temporary support device 20.

Next, a second embodiment of the electric wire gripping device will be described with reference to FIGS. Also in the second embodiment, as in the case of the first embodiment, the first to third electric wire gripping devices have the same configuration, so that only the first electric wire gripping device will be described and other details will be described. Description is omitted. The first electric wire gripping device 100A according to the second embodiment includes a base member 110 that is attached and fixed on the first roller 51, a lower bracket 120 that is slidably attached to the base member 110, and a lower side The upper bracket 130 that grips the electric wire together with the bracket 120, the link mechanism 140 connected to the lower bracket 120 and the upper bracket 130, the tension spring 160 attached to the link mechanism 140, and the sliding movement of the lower bracket 120. The first and second slide regulating members 171 and 172 to be regulated are configured and attached to the first four-sided roller 45A.

The base member 110 includes a base portion 111, a base attachment portion 112, and a swing member support portion 113 that are formed using a metal material, and the respective portions are joined by welding or the like. The base portion 111 is formed in a plate shape extending along the electric wire insertion direction (direction in which the rectangular gap portion extends) in the first four-sided roller 45A, and the base end portion is the base attachment portion 11.
2 (bonded). On the top surface on the front end side of the base portion 111 (upper left surface in FIG. 7)
A dovetail guide rail 115 is attached, and the lower bracket 120 is slidably attached to the guide rail 115.

The base attachment portion 112 is formed in a gate shape that straddles the bottom of the roller holding member 55, and is attached and fixed on the first roller 51 in a state where sliding movement is restricted. A through hole 112 a into which the fall prevention pin 116 (see FIG. 8) can be inserted is formed in the side portion of the base attachment portion 112. The through hole 112a is arranged so as to be aligned with a pin insertion hole (not shown) formed in the roller holding member 55. As shown in FIG. 8, the fall prevention pin 116 is connected to the through hole 112a and the pin. The base member 110 (that is, the electric wire gripping device 100A) is prevented from falling out of the roller holding member 55 by being inserted through an insertion hole (not shown).

The swing member support portion 113 is formed in a quadrangular prism shape whose upper end is bent vertically, and the lower end portion is coupled (joined) to the upper surface of the base attachment portion 112. An attachment shaft 114 for attaching the swing member 141 of the link mechanism 140 is inserted through the tip of the swing member support portion 113 that is split into two and extends in parallel. The swing member support portion 113 is connected to the attachment shaft 114. The swinging member 141 is swingably supported via the.

The lower bracket 120 is formed in a substantially L shape in cross-section using a metal material, and extends vertically upward from a lower grip portion 121 that receives and grips an electric wire on the lower side, and a side end of the lower grip portion 121. And a side wall portion 123. The lower grip 121 is formed in a plate shape that can be engaged with the groove of the guide rail 115, and is attached to the guide rail 115 so as to be slidable in the electric wire insertion direction of the first four-sided roller 45A. Thus, the lower bracket 120
Receives the electric wire (for example, the first high-voltage line HW1) supported by the first four-sided roller 45A on the lower side of the electric wire, and slides in the extending direction of the electric wire with respect to the first four-sided roller 45A (and the base member 110). Can move. In the second embodiment, the lower bracket 1
The direction of sliding movement 20 so as to approach the first four-surface roller 45A (for example, the right side of FIG. 11) is referred to as one side, and the direction of sliding movement away from the first four-surface roller 45A (for example, the left side of FIG. 11). ) Will be referred to as the other. In addition, a lower groove portion 122 formed of a sawtooth groove is formed on the upper surface of the lower grip portion 121 to prevent the gripped electric wire from slipping.

In the vicinity of the other end of the side wall 123, a lower connecting portion 124 (see FIG. 9) to which the fourth connecting shaft 154 can be attached is formed, and the operating member of the link mechanism 140 is connected via the fourth connecting shaft 154. 147 are connected. A frame-shaped guide part 125 is formed in the vicinity of one end of the side wall part 123, and the second connecting member 146 of the link mechanism 140 is inserted therethrough. Guide part 12
5 is formed in a frame shape matching the cross-sectional shape of the second connecting member 146, and supports the second connecting member 146 to be slidable. Note that the inner width of the guide portion 125 in the vertical direction is slightly larger than the width of the second connecting member 146 in the vertical direction so that the second connecting member 146 can move up and down inside the guide portion 125. A stopper 126 that restricts rotation of the upper bracket 130 by a predetermined angle or more is formed obliquely below the guide portion 125 in the side wall portion 123. In addition, a contact portion 127 that can contact the first slide regulating member 171 is formed on one end surface of the side wall portion 123.

The upper bracket 130 is formed in a plate shape using a metal material, and is formed on the upper grip portion 131 that grips the electric wire together with the lower grip portion 121 of the lower bracket 120 and the link mechanism 140 on the upper portion of the upper grip portion 131. And an upper connecting portion 134 connected to the main body. The upper grip portion 131 is formed in a plate shape facing the lower grip portion 121, and an upper groove portion 132 made of a sawtooth groove is provided on the lower surface of the upper grip portion 131 to prevent the gripped electric wire from slipping. Is formed. The upper connecting portion 134 is formed in an isosceles triangular plate shape, and is rotatably connected to the operating member 147 of the link mechanism 140 via the fifth connecting shaft 155. As a result, the upper bracket 130 is connected to the lower bracket 120 using the link mechanism 140 and is disposed to face the lower bracket 120 substantially in parallel. The upper bracket 13
0 can grip the electric wire together with the lower bracket 120 by using the operation of the first four-sided roller opening / closing mechanism 50 </ b> A to narrow the distance from the lower bracket 120 by the link mechanism 140.

The link mechanism 140 includes a swing member 141, a first connecting member 145, and a second connecting member 146.
And an actuating member 147. The swing member 141 is formed in a rod shape using a metal material, and is swingably attached to the swing member support portion 113 of the base member 110 using an attachment shaft 114. Further, the swinging member 141 includes a swinging part 142 swingable in one or the other with respect to the swinging member support part 113 and a roller contact part 143 with which the second roller 52 can contact.
And is configured. One end side of the swinging part 142 is swingably attached to the swinging member support part 113 using the mounting shaft 114, and the other end side of the swinging part 142 is attached to the swinging member support part 113.
And is connected to one end side of the first connecting member 145 using the first connecting shaft 151 so as to be freely rotatable (oscillated). The roller contact portion 143 is formed in a protruding shape on the other side of the swinging portion 142 and swings in one direction together with the swinging portion 142 when pressed downward by the second roller 52. .

The first connecting member 145 is mainly configured by a spring type damper that is a tension spring type elastic member extending in a rod shape. One end side of the first connecting member 145 is connected to the other end side of the swinging member 141 (swinging part 142) using the first connecting shaft 151 so as to be rotatable (swingable).
The other end of the second member extends to the other side substantially parallel to the base member 110 and is connected to one end of the second connecting member 146 using the second connecting shaft 152 so as to be freely rotatable (oscillated).

The second connecting member 146 is formed in a bar shape gently curved downward using a metal material, and is inserted into the guide portion 125 of the lower bracket 120. One end side of the second connecting member 146 is rotatably connected to the other end side of the first connecting member 145 using the second connecting shaft 152, and the other end side of the second connecting member 146 is a base. The member 110 extends obliquely upward to the other and is connected to one end side of the actuating member 147 using the third connecting shaft 153 so as to be freely rotatable (oscillated).

The operating member 147 is formed in a plate shape using a metal material. One end side of the operating member 147 is
Using the third connecting shaft 153, the second connecting member 146 is connected to the other end of the second connecting member 146 so as to be freely rotatable (oscillated)
The other end side of the actuating member 147 extends downward from the one end side, and is connected to the lower connecting portion 124 of the lower bracket 120 using the fourth connecting shaft 154 so as to be freely rotatable (swingable). The intermediate portion of the actuating member 147 swells in one side so that the actuating member 147 has a substantially triangular shape, and the top of the actuating member 147 can freely rotate (swing) with the upper connecting portion 134 of the upper bracket 130 using the fifth connecting shaft 155. Connected. At this time, the operating member 147 has the upper bracket 130 as the lower bracket 1.
The lower connecting portion 124 and the upper connecting portion 134 are connected to each other so as to face the 20.

The tension spring 160 is attached to a first spring mounting screw 161 whose one end is coupled to the third connecting shaft 153 (that is, one end side of the operating member 147), and the other end is a second slide restricting member. A second spring mounting screw 162 coupled to the upper end of 172 is attached. The tension spring 160 utilizes the elastic force to link the link mechanism 140.
An urging force is applied to the actuating member 147 in a direction in which the upper bracket 130 moves away from the lower bracket 120.

The first slide restricting member 171 is formed in a plate shape using a metal material, and is joined (joined) to the upper surface of the base portion 111 adjacent to one of the guide rails 115 by welding or the like. The other side surface of the first slide restricting member 171 is inclined obliquely, comes into contact with the contact portion 127 of the lower bracket 120 slid to one end portion of the guide rail 115, and the slide movement of the lower bracket 120 Is to regulate.

The second slide restricting member 172 is formed in a rod shape using a metal material, and is joined (joined) to the tip end portion (the other end portion) of the base portion 111 adjacent to the other of the guide rail 115 by welding or the like.
Is done. Further, the second slide restricting member 172 abuts on the lower bracket 120 slid to the other end of the guide rail 115 and restricts the slide movement of the lower bracket 120.

Using the first electric wire gripping device 100A configured as described above, the first electric wire support 40A is used.
In order to grip the high-voltage line HW1 supported by the first, the first electric wire gripping device 100A is attached to the first four-sided roller 45A. At this time, the base attaching part 112 of the base member 110 is attached to the bottom part (on the first roller 51) of the roller holding member 55, and the fall prevention pin 116 is inserted into the through hole 112a of the base attaching part 112 and the pin of the roller holding member 55. Insert through a hole (not shown).

Next, as in the case of the first embodiment, the temporary support device 20 attached to the tip of the boom 5.
Are moved below the three high-voltage lines HW1 to HW3, the arm portion 30 of the temporary support device 20 is rotated from the horizontal position to the vertical position, and the three high-voltage lines HW1 to HW3 are respectively connected to the three electric wire gripping devices. Adjust the position so that it can be received by the lower bracket. At this time, as shown in FIGS. 8 and 9, the lower grip portion 121 of the lower bracket 120 causes the first high-voltage line HW1 supported by the first four-sided roller 45A of the first electric wire support 40A from the lower side. Take it. The second
In the embodiment, the orientation of the first electric wire gripping device 100A (specifically, the tension from the first high-voltage line HW1 acts in advance toward the other of the lower bracket 120 (and the upper bracket 130). The support direction by the temporary support device 20 or the attachment direction of the wire gripping device 100A) is adjusted.

Next, the temporary support device operation switch (not shown) of the operation device 10 is operated to operate the first four-sided roller opening / closing mechanism 50A so as to close the front end portion of the opened first four-sided roller 45A. At this time, the second roller 52 is swung by the first four-surface roller opening / closing mechanism 50A, and the gap K
Is closed (the portion surrounded by the second roller 52 is closed), the second roller 52 comes into contact with the swing member 141 (roller contact portion 143) as shown in FIGS. With
The swinging member 141 pressed by the second roller 52 and the actuating member 147 connected to the swinging member 141 via the first and second connecting members 145 and 146 are resisted against the biasing force of the tension spring 160. Rocks. Then, the upper grip portion 131 of the upper bracket 130 connected to the operating member 147 approaches the lower grip portion 121 of the lower bracket 120, and FIG. 7 and FIG.
As also indicated by 0, the upper gripping portion 131 of the upper bracket 130 grips the first high-voltage line HW1 together with the lower gripping portion 121 of the lower bracket 120 using the pressing force from the second roller 52.

In this manner, the first high-voltage line HW1 supported by the first electric wire support 40A (first four-sided roller 45A) can be held using the first electric wire holding device 100A. When the swing member 141 (and the actuating member 147) pressed by the second roller 52 swings in one direction, the lower bracket 120 is also pulled in one direction to slide and hit the first slide restriction member 171. Stop in contact. That is, the second roller 52 is formed by the members of the link mechanism 140.
A part of the pressing force from the first side becomes an urging force, and the first and second slide regulating members 171 and 172
The lower bracket 120 at one end position in the slide movement range regulated by
And the upper bracket 130 is located. In addition, the slide movement range of the lower bracket 120 and the upper bracket 130 is such that one end portion (abutment portion 127) of the lower bracket 120 abuts on the first slide restricting member 171 and the other end of the lower bracket 120. This is a range up to a position where the end of the first abutting portion contacts the second slide regulating member 172.

Further, since the first connecting member 145 is mainly composed of a spring-type damper, the swinging member 141 is used.
In addition, the force that swings the operating member 147 (that is, the force that grips the first high-voltage line HW1) is based on the elastic force of the first connecting member 145 that is pulled (elastically deformed) by being pulled by the swing member 141. It becomes. Therefore, in order to swing the actuating member 147 against the biasing force of the tension spring 160, the spring constant of the first connecting member 145 (spring damper) is the tension spring 16
It is set to be larger than 0 spring constant. Further, in a state where the upper bracket 130 holds the first high-voltage line HW1 together with the lower bracket 120, the lower bracket 120 and the upper bracket 130 are attached to the one end position described above by the elastic force of the first connecting member 145. Will be energized.

In a state where the first electric wire gripping device 100A grips the electric wire (first high-voltage line HW1), for example,
During repair work of the cut electric wires, a tool (such as a strain rod) for pulling the cut electric wires away from the electric wires, and a relatively large tension from the electric wires is applied to the other of the lower bracket 120 and the upper bracket 130. Lower bracket 1 that grips the wire
12 and 20, the upper bracket 130 slides to the other side (in the direction in which the electric wire extends) against the urging force of the first connecting member 145, and the lower bracket 120 is the second slide. It stops in a state where it abuts on the regulating member 172. Thus, the lower bracket 12
The 0 and upper brackets 130 can slide in a direction that relieves tension from the electric wires. At this time, the first connecting member 145 is pulled and extended by the lower bracket 120 and the upper bracket 130 (second connecting member 146), and the elastic force of the first connecting member 145 increases. Swinging force, that is, the upper bracket 1
The force with which 30 holds the electric wire together with the lower bracket 120 also increases. Therefore, even if the tension from the electric wire acts toward the other of the lower bracket 120 and the upper bracket 130,
The lower bracket 120 and the upper bracket 130 can grip the electric wire without slipping.

As described above, according to the second embodiment, the lower bracket 120 and the upper bracket 130 are configured to be slidable in the extending direction of the electric wire, and the first and second
The lower bracket 120 and the upper bracket 130 are connected to the first connecting member 145 of the link mechanism 140 and the like (the bracket urging member) so that the lower bracket 120 and the upper bracket 130 are positioned at one end position in the range of slide movement regulated by the slide regulating members 171 and 172. ), The lower bracket 120 and the upper bracket 130 that have gripped the electric wire are within the range restricted by the first and second slide restricting members 171 and 172 (in the direction in which the tension from the electric wire is eased) In the case of the second embodiment, it can be slid from one end position to the other, and the load on the temporary support device 20 and the like can be reduced.

Further, it is preferable that the upper bracket 130 connected by the link mechanism 140 grips the electric wire together with the lower bracket 120 using the pressing force from the second roller 52 swung by the four-surface roller opening / closing mechanism 50A. If it does in this way, an electric wire can be easily grasped using operation of temporary support device 20.

In addition, when the second roller 52 is closed by the four-sided roller opening / closing mechanism 50A, the link mechanism 140 makes contact with the swing member 141, and the swing member 141 pressed by the second roller 52 and the swing The operating member 147 connected to the moving member 141 via the first and second connecting members 145 and 146 swings to one side, and the upper bracket 130 connected to the operating member 147 approaches the lower bracket 120, and It is preferable that the upper bracket 130 grips the electric wire together with the lower bracket 120 using the pressing force from the two rollers 52, and the first connecting member 145 is also used as a bracket urging member using a spring damper. By doing, the structure of an electric wire holding | gripping apparatus can be simplified. Further, when the lower bracket 120 and the upper bracket 130 holding the electric wire slide to the other side against the urging force of the first connecting member 145, the first and second connecting members 145 and 146 move the operating member 147 to one side. Since the force for swinging, that is, the force with which the upper bracket 130 grips the electric wire together with the lower bracket 120 is increased, even if the tension from the electric wire acts on the other of the lower bracket 120 and the upper bracket 130, Side bracket 120 and upper bracket 1
30 can hold | grip an electric wire, without slipping.

In addition, it is preferable to provide a tension spring 160 that applies an urging force so that the upper bracket 130 is separated from the lower bracket 120 by a predetermined distance. In this way, when the second roller 52 is opened by the four-sided roller opening / closing mechanism 50A. In addition, the holding of the electric wire by the lower bracket 120 and the upper bracket 130 can be easily released.

In the second embodiment described above, the first connecting member 145 is mainly composed of a spring-type damper. However, the present invention is not limited to this. For example, a tension coil spring is used instead of the spring-type damper. An elastic member having elasticity against the pulling force may be used. The first connecting member 145 is not limited to an elastic member, and may be a rod-like or wire-like rigid member. When a rigid member such as a rod is used as the first connecting member 145,
When the lower bracket 120 and the upper bracket 130 holding the electric wire slide and move from one end position to the other, the operating member 147 connected to the lower bracket 120 is pulled by the first and second connecting members 145 and 146. Thus, the upper bracket 130 approaches the lower bracket 120 and the force for gripping the electric wire increases, so that the electric wire can be gripped without slipping. Further, when a rigid member such as a rod is used as the first connecting member 145, as shown by a two-dot chain line in FIG.
May be provided across the lower bracket 120 and the base portion 111.

In the second embodiment described above, the upper bracket 130 is configured to include the tension spring 160 that applies a biasing force so as to be separated from the lower bracket 120 by a predetermined distance. However, the present invention is not limited to this. The holding of the electric wire by the lower bracket 120 and the upper bracket 130 may be manually released without providing such a tension spring 160.

Next, a third embodiment of the electric wire gripping device will be described with reference to FIGS.
Also in the third embodiment, as in the case of the first embodiment, the first to third electric wire gripping devices have the same configuration, and therefore, only the first electric wire gripping device will be described and other details will be described. Description is omitted. The first electric wire gripping device 200A according to the third embodiment includes a base member 210 that is attached and fixed on the first roller 51, a lower bracket 220 that is slidably attached to the base member 210, and a lower side. The upper bracket 230 that grips the electric wire together with the bracket 220, the link mechanism 240 connected to the lower bracket 220 and the upper bracket 230, the tension spring 260 attached to the link mechanism 240, and the sliding movement of the lower bracket 220. The first and second slide regulating members 271 and 272 to be regulated are configured and attached to the first four-sided roller 45A.

The base member 210 includes a base portion 211, a base attachment portion 212, and a swing member support portion 213 formed using a metal material, and the respective portions are joined by welding or the like. The base portion 211 is formed in a plate shape extending along the electric wire insertion direction (direction in which the rectangular gap portion extends) in the first four-sided roller 45A, and the base end portion is the base attachment portion 21.
2 (bonded). A dovetail guide rail 215 is attached to the upper surface of the base portion 211, and the lower bracket 220 is slidably attached to the guide rail 215.

Note that the guide rail 215 of the third embodiment includes the lower gripping portion 22 of the lower bracket 220.
It is formed to be slightly longer than 1, and is shorter than the guide rail 115 of the second embodiment. Therefore, the slide movement range of the lower bracket 220 and the upper bracket 230 in the third embodiment is shorter (for example, about 10 mm) than the slide movement range of the lower bracket 120 and the upper bracket 130 in the second embodiment. Yes. The base portion 211 of the third embodiment is formed to be slightly longer than the guide rail 215 and is shorter than the base portion 111 of the second embodiment.

The base attachment portion 212 is formed in a gate shape that straddles the bottom of the roller holding member 55, and is attached and fixed on the first roller 51 in a state where sliding movement is restricted. A through hole 212 a into which the fall prevention pin 216 can be inserted is formed in the side portion of the base attachment portion 212. The through hole 212a is disposed so as to be aligned with a pin insertion hole (not shown) formed in the roller holding member 55, and the fall prevention pin 216 is inserted into the through hole 212a and the pin insertion hole (not shown). Is inserted into the base member 210 (that is, the wire gripping device 2).
00A) is prevented from falling off the roller holding member 55 and falling.

The swing member support portion 213 is formed in a quadrangular prism shape whose upper end is bent vertically, and the lower end portion is coupled (joined) to the upper surface of the base attachment portion 212. An attachment shaft 214 for attaching the swing member 241 of the link mechanism 240 is inserted through the tip of the swing member support portion 213 that is split into two and extends in parallel. The swinging member 241 is supported so as to be swingable.

The lower bracket 220 is formed in a substantially L shape in cross-section using a metal material, and extends vertically upward from a lower gripping portion 221 that receives and grips an electric wire on the lower side, and a side end of the lower gripping portion 221. And a side wall portion 223. The lower grip portion 221 is formed in a plate shape that can be engaged with the groove portion of the guide rail 215, and is attached to the guide rail 215 so as to be slidable in the insertion direction of the electric wire in the first four-sided roller 45A. Thus, the lower bracket 220
Receives the electric wire (for example, the first high-voltage line HW1) supported by the first four-sided roller 45A on the lower side of the electric wire, and slides in the direction in which the electric wire extends with respect to the first four-sided roller 45A (and the base member 210). Can move. In the third embodiment, the lower bracket 2
The direction of sliding movement 20 so as to approach the first four-surface roller 45A (for example, the right side of FIG. 16) is referred to as one side, and the direction of sliding movement away from the first four-surface roller 45A (for example, the left side of FIG. 16). ) Will be referred to as the other. Further, a lower groove portion 222 made of a sawtooth groove is formed on the upper surface of the lower grip portion 221 to prevent the gripped electric wire from slipping.

Near the other end of the side wall portion 223, a lower connection portion 224 (see FIG. 13) to which the fourth connection shaft 254 can be attached is formed, and the operating member of the link mechanism 240 is interposed via the fourth connection shaft 254. 247 are connected. A frame-shaped guide part 225 is formed in the vicinity of one end of the side wall part 223, and the second connecting member 246 of the link mechanism 240 is inserted therethrough. Guide part 2
25 is formed in a frame shape matching the cross-sectional shape of the second connecting member 246, and the second connecting member 246 is formed.
Is slidably supported. The inner width in the vertical direction of the guide portion 225 is the second connecting member 246.
The second connecting member 246 can move up and down slightly inside the guide portion 225. A stopper 226 that restricts rotation of the upper bracket 230 by a predetermined angle or more is formed obliquely below the guide portion 225 in the side wall portion 223.

The upper bracket 230 is formed in a plate shape using a metal material, and is formed on the upper gripping portion 231 that grips the electric wire together with the lower gripping portion 221 of the lower bracket 220 and the upper portion of the upper gripping portion 231, and the link mechanism 240. And an upper connecting portion 234 connected to the main body. The upper grip portion 231 is formed in a plate shape facing the lower grip portion 221, and an upper groove portion 232 made of a sawtooth groove is provided on the lower surface of the upper grip portion 231 to prevent the gripped electric wire from slipping. Is formed. The upper connecting portion 234 is formed in an isosceles triangular plate shape, and is rotatably connected to the operating member 247 of the link mechanism 240 via the fifth connecting shaft 255. As a result, the upper bracket 230 is connected to the lower bracket 220 using the link mechanism 240 and is disposed to face the lower bracket 220 substantially in parallel. The upper bracket 23
0 can hold the electric wire together with the lower bracket 220 by using the operation of the first four-sided roller opening / closing mechanism 50A to narrow the distance from the lower bracket 220 by the link mechanism 240.

The link mechanism 240 includes a swing member 241, a first connecting member 245, and a second connecting member 246.
And an actuating member 247. The swing member 241 is formed in a rod shape using a metal material, and is swingably attached to the swing member support portion 213 of the base member 210 using the mounting shaft 214. The swing member 241 includes a swing portion 242 that can swing in one or the other with respect to the swing member support portion 213, and a roller contact portion 243 with which the second roller 52 can contact.
And is configured. One end side of the swinging part 242 is swingably attached to the swinging member support part 213 using the mounting shaft 214, and the other end side of the swinging part 242 is swinging member support part 213.
And is connected to one end side of the first connecting member 245 using the first connecting shaft 251 so as to be rotatable (swingable). The roller abutting portion 243 is formed in a protruding shape on the other side of the swinging portion 242, and swings in one direction together with the swinging portion 242 when pressed downward by the second roller 52. .

The first connecting member 245 is formed in a rod shape that extends linearly using a metal material. One end side of the first connecting member 245 is connected to the other end side of the swinging member 241 (swinging part 242) using the first connecting shaft 251 so as to freely rotate (swing). The end side is the base member 210.
And is connected to one end side of the second connecting member 246 using the second connecting shaft 252 so as to be freely rotatable (oscillated).

The second connecting member 246 is formed in a bar shape gently curved downward using a metal material, and is inserted into the guide portion 225 of the lower bracket 220. One end side of the second connection member 246 is rotatably connected to the other end side of the first connection member 245 using the second connection shaft 252, and the other end side of the second connection member 246 is connected to the base It extends obliquely upward to the other with respect to the member 210 and is connected to one end side of the operating member 247 using the third connecting shaft 253 so as to be freely rotatable (oscillated).

The operating member 247 is formed in a plate shape using a metal material. One end side of the operating member 247 is
It is connected to the other end side of the second connecting member 246 using the third connecting shaft 253 so as to be freely rotatable (swingable).
The other end side of the actuating member 247 extends downward from one end side, and is connected to the lower connecting portion 224 of the lower bracket 220 using the fourth connecting shaft 254 so as to be freely rotatable (swingable). The intermediate portion of the actuating member 247 swells in one side so that the actuating member 247 has a substantially triangular shape, and the top portion of the actuating member 247 can freely rotate (swing) with the upper connecting portion 234 of the upper bracket 230 using the fifth connecting shaft 255. Connected. At this time, the operating member 247 has the upper bracket 230 as the lower bracket 2.
The lower connecting portion 224 and the upper connecting portion 234 are connected to each other so as to face the 20.

The tension spring 260 is attached to a first spring attachment screw 261 having one end connected to the third connecting shaft 253 (that is, one end side of the operating member 247), and the other end is attached to the lower bracket 220. The second part coupled to the side wall part 223 (near the lower connection part 224)
Attached to the spring attachment screw 262. The tension spring 260 applies an urging force to the operating member 247 of the link mechanism 240 in a direction in which the upper bracket 230 moves away from the lower bracket 220 using the elastic force.

The first slide restricting member 271 is formed in a plate shape using a metal material, and is joined (joined) to the upper surface of the base portion 211 adjacent to one of the guide rails 215 by welding or the like. The first slide restricting member 271 is disposed so as to close one end of the groove portion of the guide rail 215, contacts the lower bracket 220 slid to one end of the guide rail 215, and Slide movement is regulated.

The second slide restricting member 272 is formed in a plate shape using a metal material, and is joined (joined) to the distal end portion (the other end portion) of the base portion 211 adjacent to the other of the guide rail 215 by welding or the like.
Is done. The second slide restricting member 272 is disposed so as to close the other end of the groove portion of the guide rail 215, contacts the lower bracket 220 slid to the other end of the guide rail 215, and the lower bracket 220 The slide movement is regulated.

Using the first electric wire gripping apparatus 200A configured as described above, the first electric wire support 40A is used.
In order to grip the high-voltage line HW1 supported by the first, the first electric wire gripping device 200A is first attached to the first four-sided roller 45A. At this time, the base attachment portion 212 of the base member 210 is attached to the bottom portion (above the first roller 51) of the roller holding member 55, and the fall prevention pin 216 is inserted into the through hole 212a of the base attachment portion 212 and the pin of the roller holding member 55. Insert through a hole (not shown).

Next, as in the case of the first embodiment, the temporary support device 20 attached to the tip of the boom 5.
Are moved below the three high-voltage lines HW1 to HW3, the arm portion 30 of the temporary support device 20 is rotated from the horizontal position to the vertical position, and the three high-voltage lines HW1 to HW3 are respectively connected to the three electric wire gripping devices. Adjust the position so that it can be received by the lower bracket. At this time, the lower holding portion 221 of the lower bracket 220 receives the first high-voltage line HW1 supported by the first four-surface roller 45A of the first electric wire support 40A from the lower side. In the third embodiment, the first
The orientation of the first electric wire gripping device 200A (specifically, the direction of support by the temporary support device 20 or The attachment direction of the electric wire gripping device 200A) is adjusted.

Next, the temporary support device operation switch (not shown) of the operation device 10 is operated to operate the first four-sided roller opening / closing mechanism 50A so as to close the front end portion of the opened first four-sided roller 45A. At this time, the second roller 52 is swung by the first four-surface roller opening / closing mechanism 50A, and the gap K
Is closed (the portion surrounded by the second roller 52 is closed), the second roller 52 comes into contact with the swing member 241 (roller contact portion 243) as shown in FIGS. With
The swinging member 241 pressed by the second roller 52 and the actuating member 247 connected to the swinging member 241 via the first and second connecting members 245 and 246 resists the biasing force of the tension spring 260. Rocks. Then, the upper grip portion 231 of the upper bracket 230 connected to the operation member 247 approaches the lower grip portion 221 of the lower bracket 220, and the second roller 52
The upper gripping portion 231 of the upper bracket 230 is used by the lower bracket 22 by utilizing the pressing force from the lower bracket 22.
The first high-voltage line HW1 is held together with the 0 lower holding part 221.

In this way, the first high-voltage line HW1 supported by the first electric wire support 40A (first four-sided roller 45A) can be held using the first electric wire holding device 200A. When the swinging member 241 (and the actuating member 247) pressed by the second roller 52 swings to one side, the lower bracket 220 is also pulled and slid to one side and hits the first slide regulating member 271. Stop in contact. In other words, the second roller 52 is formed by the members of the link mechanism 240.
A part of the pressing force from the first member becomes an urging force, and the first and second slide restricting members 271 and 272
The lower bracket 220 at one end position in the slide movement range regulated by
And the upper bracket 230 is located. The slide movement range of the lower bracket 220 and the upper bracket 230 is such that one end of the lower bracket 220 is first.
From the position in contact with the slide restricting member 271, the other end of the lower bracket 220 is second.
This is a range up to a position where the slide regulating member 272 comes into contact.

In a state where the first electric wire gripping device 200A grips the electric wire (first high-voltage wire HW1), for example,
During repair work of the cut wires, a tool for pulling the cut wires (strain rod or the like) is removed from the wires, and a relatively large tension from the wires is applied to the other of the lower bracket 220 and the upper bracket 230. Lower bracket 2 that grips the wire
16 and 20, the upper bracket 230 slides from one end position to the other (in the direction of extension of the electric wire), and the lower bracket 220 contacts the second slide restricting member 272. Stop in the state. Thereby, the lower bracket 220 and the upper bracket 230 can be slid and moved in the direction of relaxing the tension from the electric wire. Further, when the lower bracket 220 and the upper bracket 230 that have gripped the electric wire slide and move from one end position to the other, the operating member 247 connected to the lower bracket 220 becomes the first.
And since it swings to one side so as to be pulled by the second connecting members 245 and 246, the force with which the upper bracket 230 approaches the lower bracket 220 and grips the electric wire increases. Therefore, even if tension from the electric wire acts toward the other of the lower bracket 220 and the upper bracket 230, the electric wire can be gripped without slipping.

As described above, according to the third embodiment, the lower bracket 220 and the upper bracket 230 are configured to be slidable in the extending direction of the electric wire, and the first and second
Since the lower bracket 220 and the upper bracket 230 receive a biasing force from each member of the link mechanism 240 so as to be positioned at one end position in the range of slide movement regulated by the slide regulating members 271 and 272, The gripped lower bracket 220 and upper bracket 230 are within a range regulated by the first and second slide regulating members 271 and 272 in a direction in which tension from the electric wire is eased (one end in the case of the third embodiment). It is possible to slide from the position to the other), and the load on the temporary support device 20 and the like can be reduced.

Further, it is preferable that the upper bracket 230 connected by the link mechanism 240 uses the pressing force from the second roller 52 swung by the four-surface roller opening / closing mechanism 50A to hold the electric wire together with the lower bracket 220. If it does in this way, an electric wire can be easily grasped using operation of temporary support device 20.

In addition, when the second roller 52 is closed by the four-sided roller opening / closing mechanism 50A, the link mechanism 240 is in contact with the swinging member 241 and the swinging member 241 pressed by the second roller 52 and the swinging member 241. The operating member 247 connected to the moving member 241 via the first and second connecting members 245 and 246 swings to one side, and the upper bracket 230 connected to the operating member 247 approaches the lower bracket 220, It is preferable that the upper bracket 230 holds the electric wire together with the lower bracket 220 using the pressing force from the two rollers 52. Accordingly, the lower bracket 220 and the upper bracket 230 that grip the electric wire.
When the slide member moves from one end position to the other, the actuating member 247 connected to the lower bracket 220 swings in one direction so as to be pulled by the first and second connecting members 245 and 246, and thus the upper bracket 230. Approaches the lower bracket 220 and the force for gripping the electric wire increases, and the electric wire can be gripped without slipping.

In addition, it is preferable to provide a tension spring 260 that applies an urging force so that the upper bracket 230 is separated from the lower bracket 220 by a predetermined distance. In this way, when the second roller 52 is opened by the four-sided roller opening / closing mechanism 50A. In addition, the holding of the electric wire by the lower bracket 220 and the upper bracket 230 can be easily released.

The first electric wire gripping device 200A according to the third embodiment has the same configuration as the first electric wire gripping device 100A according to the second embodiment, but the base portion 211 and the guide rail 215.
Is shorter than that of the second embodiment. Thus, in 3rd Embodiment, since the full length of 200 A of 1st electric wire gripping devices is short, the electric wire support (temporary support device 20) to which the electric wire gripping device was attached was used as the electric wire (three high voltage lines HW1-HW3). ) Can be easily moved downward. Also, by setting the slide movement range of the lower bracket 220 and the upper bracket 230 to be short, the impact load (impact based on the kinetic energy of the lower bracket 220) when the lower bracket 220 abuts against the second slide restriction member 272. Load) can be reduced.

In the third embodiment described above, a bracket urging member such as a tension spring may be provided across the lower bracket 220 and the base member 210. Moreover, although the 1st connection member 245 is formed using the rod-shaped rigid member, it is not restricted to this, A wire-shaped rigid member may be sufficient and it replaces with a rigid member and is a spring type | formula. An elastic member such as a damper or a tension coil spring may be used as the bracket biasing member.

In each of the above-described embodiments, the parallel link mechanism 65 (or the link mechanism 1 is used) by using the pressing force from the second roller 52 that is swung by the four-sided roller opening / closing mechanisms 50A to 50C.
40, 240) is configured so as to hold the electric wire together with the lower bracket. However, the upper bracket is not limited thereto, and the upper bracket and the lower bracket The electric wire may be gripped by fastening. In this way, it can be applied to vehicles other than the temporary support method vehicle 1.

For example, the present invention can be applied to an aerial work vehicle including a vehicle body that can travel, a boom disposed on the vehicle body, and a workbench provided at the tip of the boom. What is necessary is just to attach the electric wire holding apparatus of the structure which fastens an upper bracket and a lower bracket using fastening means, such as a screw, to the electric wire support provided in the above. At this time, as in the case of the first embodiment described above, the lower bracket and the upper bracket are configured to be slidable in the direction of extension of the electric wire, and the slide movement regulated by the first and second slide regulating members. If the lower bracket and the upper bracket are configured to receive an urging force from the first compression spring and the second compression spring so as to be positioned at an intermediate position in the range, the load applied to the workbench or the like can be reduced. Can do. Further, as in the case of the second to third embodiments described above, the lower bracket and the upper bracket may be located at one end position in the slide movement range.

In each of the above-described embodiments, the four-sided roller opening / closing mechanisms 50A to 50C and 50G are configured to be able to swing open and close the second roller 52 located at the tip (upper part) of the four-sided rollers 45A to 45C and 45G. For example, the third roller may be configured to be able to swing open and close. In this case, for example, the electric wire gripping device can be attached to the holding portion of the second roller in the four-sided roller.

Moreover, in each above-mentioned embodiment, although the three high voltage wires HW1 to HW3 are gripped by the first to third wire gripping devices (60A to 60C), the present invention is not limited to this.
It is also possible to grip the third low-voltage lines LW1 to LW3.

Moreover, in each above-mentioned embodiment, the temporary support apparatus 20 is three electric wire support tools 40A-40.
However, the present invention is not limited to this, and the temporary support device 20 may have one wire support or a plurality of wire supports. .

Moreover, in each above-mentioned embodiment, although the bracket 26 and the arm part 30 are comprised so that a swing is possible, it is not restricted to this, The arm part 30 is being fixed in the state which protruded from the front-end | tip of the boom 5. FIG. May be.

Moreover, in each above-mentioned embodiment, although the 1st and 2nd arms 33 and 35 are comprised so that rocking | swiveling, it is not restricted to this, You may be fixed in the substantially horizontal state.

Moreover, in each above-mentioned embodiment, although the 1st and 2nd arms 33 and 35 are comprised so that expansion-contraction movement is possible, it is not restricted to this, The pitch space | interval of three electric wire support tool 40A-40C is three. As long as it is adjusted to be the same as the pitch interval of the high-voltage lines HW1 to HW3, it does not have to expand and contract.

DESCRIPTION OF SYMBOLS 1 Temporary support construction method vehicle 2 Car body 5 Boom 20 Temporary support apparatus 21 Vertical post 22 Swing motor 26 Bracket 27 Rotation motor 30 Arm part 33 1st arm 35 2nd arm 37 Sub arm 40A 1st electric wire support tool 40B 2nd electric wire support tool 40C Third wire support 40G Ground wire support 45A First four-sided roller 45B Second four-sided roller 45C Third four-sided roller 45G Fourth four-sided roller 50A First four-sided roller opening / closing mechanism 50B Second four-sided roller opening / closing mechanism 50C Third four-sided roller Opening / closing mechanism 50G Fourth four-sided roller opening / closing mechanism 51 First roller 52 Second roller 53 Third roller 54 Fourth roller 60A First electric wire gripping device (first embodiment)
60B Second wire gripping device 60C Third wire gripping device 61 Lower bracket 63 Upper bracket 65 Parallel link mechanism 67 Tension spring 70 First slide restricting member 80 Second slide restricting member 91 First compression spring 92 Second compression spring 100A 1st electric wire holding device (2nd Embodiment)
110 Base member 120 Lower bracket 130 Upper bracket 140 Link mechanism 141 Oscillating member 145 First connecting member 146 Second connecting member 147 Actuating member 160 Tensile spring 200A First wire gripping device (third embodiment)
210 Base member 220 Lower bracket 230 Upper bracket 240 Link mechanism 241 Oscillating member 242 First connecting member 246 Second connecting member 247 Actuating member 260 Tensile spring P Electric pole GW Ground wire HW1 First high voltage line HW2 Second high voltage line HW3 First 3 High voltage line LW1 1st low voltage line LW2 2nd low voltage line LW3 3rd low voltage line

Claims (7)

An electric wire gripping device that is attached to a temporary support device capable of supporting an electric wire and grips the electric wire supported by the temporary support device,
It is attached to a support portion of the temporary support device that can support the electric wire, and the electric wire supported by the support portion can be received under the electric wire and slidable in the extending direction of the electric wire with respect to the support portion. A lower bracket,
An upper bracket that is provided facing the lower bracket and that is slidable by gripping the electric wire supported by the support portion together with the lower bracket;
A slide restricting member for restricting a range of the slide movement of the lower bracket and the upper bracket;
And a bracket urging member that applies an urging force so that the lower bracket and the upper bracket are positioned at a predetermined reference position in a range of the slide movement restricted by the slide restricting member. Electric wire gripping device. The predetermined reference position is one end position in the slide movement range of the lower bracket and the upper bracket,
The support portion includes a first roller that is rotatably provided at a bottom portion of the support portion, a second roller that is disposed to face the first roller in a substantially parallel manner with a predetermined gap, and is rotatable. The first
A third roller that is rotatably disposed substantially perpendicularly to the one end side of the roller via the gap portion, and a third roller that is rotatably disposed to face the other end side of the first roller substantially vertically via the gap portion. With 4 rollers,
The electric wire can be supported in a state where the electric wire is inserted into the gap portion surrounded by the first roller, the second roller, the third roller, and the fourth roller, and the second roller The gap portion is configured to be openable and occluded using a swing opening / closing mechanism that swings
A base member mounted and fixed on the first roller;
It is provided on the base member and is connected to the upper bracket and the lower bracket, and the swing opening / closing mechanism uses the force to swing the second roller to bring the upper bracket closer to the lower bracket. A link mechanism for gripping the electric wires supported by the support portion on the upper bracket and the lower bracket,
The lower bracket is slidably attached to the base member together with the upper bracket,
The electric wire according to claim 1, wherein the link mechanism is configured such that the upper bracket approaches the lower bracket when the lower bracket slides from the one end position to the other. Gripping device. The link mechanism is attached to the base member so as to be swingable on the one side, and a swinging member capable of contacting the second roller;
A connecting member having one end side connected to the swing member and extending along the sliding movement direction;
One end side is connected to the other end side of the connecting member, the other end side is swingably connected to the lower bracket and the one, and an operation member having the upper bracket connected to an intermediate portion,
When the second roller swings by the swing opening / closing mechanism to close the gap, the second roller
The roller abuts on the swing member, and the swing member pressed by the second roller and the actuating member connected to the swing member via the connecting member swing to the one side,
The upper bracket connected to the actuating member approaches the lower bracket, and the second bracket
3. The electric wire gripping device according to claim 2, wherein the upper bracket is configured to grip the electric wire supported by the support portion together with the lower bracket using a pressing force from a roller. The connecting member includes the bracket urging member that applies an urging force via the operation member so that the lower bracket and the upper bracket are positioned at the one end position. The electric wire gripping device according to claim 3. A link urging member for applying an urging force so that the upper bracket is separated from the lower bracket by a predetermined interval;
When the second roller swings by the swing opening / closing mechanism to close the gap, the second roller
The roller abuts the swing member, and the swing member pressed by the second roller and the actuating member connected to the swing member via the connecting member are biasing force of the link biasing member. 5. The electric wire gripping device according to claim 3, wherein the upper bracket connected to the actuating member comes closer to the lower bracket by swinging to one side against the lower side. The predetermined reference position is an intermediate position in the slide movement range of the lower bracket and the upper bracket,
The support portion includes a first roller that is rotatably provided at a bottom portion of the support portion, a second roller that is disposed to face the first roller in a substantially parallel manner with a predetermined gap, and is rotatable. The first
A third roller that is rotatably disposed substantially perpendicularly to the one end side of the roller via the gap portion, and a third roller that is rotatably disposed to face the other end side of the first roller substantially vertically via the gap portion. 4 rollers, and can support the electric wire in a state where the electric wire is inserted through the gap surrounded by the first roller, the second roller, the third roller, and the fourth roller. Configured,
The electric wire gripping device according to claim 1, wherein the lower bracket is slidably mounted on the first roller. The support portion is configured to be able to open and close the gap portion using a swing opening / closing mechanism that swings the second roller,
A parallel link mechanism for connecting the upper bracket and the lower bracket in parallel;
A parallel link biasing member that applies a biasing force so that the upper bracket is separated from the lower bracket by a predetermined distance;
When the second roller swings by the swing opening / closing mechanism to close the gap, the second roller
While the roller abuts on the upper bracket, the upper bracket pressed by the second roller approaches the lower bracket against the urging force of the parallel link urging member, and the pressing force from the second roller The electric wire gripping device according to claim 6, wherein the upper bracket holds the electric wire supported by the support portion together with the lower bracket using the above-described structure.

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