JP6364308B2 - Arm member attaching device, arm member attaching method, and arm member removing method - Google Patents

Description

  The present invention relates to an arm member attachment device for attaching an arm member to a utility pole, an arm member attachment method, and an arm member removal method.

  When a transformer is installed on a utility pole, a CF circuit breaker (high-voltage cutout) is provided at a portion between the utility pole's high-voltage line and the transformer. The CF circuit breaker is usually attached to a columnar arm member attached to a utility pole.

  As an apparatus for attaching a CF circuit breaker to a utility pole, Patent Document 1 discloses an approach arm apparatus. As shown in FIG. 32, the approach arm device 140 has a sub-boom 136 attached to the tip of the main boom 134 of the aerial work platform, a fixed support member 141 attached to the sub-boom 136, and a horizontal swing to the fixed support member 141. The swing arm member 142 is freely attached, the undulating arm member 143 is attached to the swivel arm member 142 so as to be swingable up and down, and the arm holder member 144 is attached to the undulating arm member 143.

  According to the approach arm device 140, the arm member 122 to which the CF breaker 124 or the like is attached in advance is held by the arm holder member 144 on the lower side of the utility pole 120, and the arm is operated by operating the main boom 134 and the sub boom 136 of the aerial work platform. The member 122 is raised to a predetermined installation position in the upper part of the utility pole 120. Next, the arm member 122 is adjusted in position while being swung horizontally by the swivel arm member 142 or vertically swung by the hoisting arm member 143, and the arm member 122 is installed on the utility pole 120.

In order to use the approach arm device 140, a space where the bucket 132 of the aerial work vehicle or the approach arm device 140 can enter is required under the high-voltage line 121a.
However, as shown in FIG. 33, in the utility pole 120 in which the low-voltage line 121b is also installed under the high-voltage line 121a, the arm member 121c that supports the low-voltage line 121b and the low-voltage line 121b is attached to the bucket 132 and the approach arm device 140. The approach arm device 140 cannot be applied because it hinders the ascent. And since it is necessary to perform a high voltage | pressure power outage and a hot-line proximity | contact operation | work with respect to such a utility pole 120, there existed a problem in generation | occurrence | production of a power failure, workability | operativity, and safety.
Further, the approach arm device 140 has a large number of parts and a heavy weight, so that there are problems in workability in assembling and disassembling, and the cost of the device itself is high.

  In Patent Document 2, as a method and apparatus for attaching a switch to a utility pole, an adapter attached to a sub-boom of an aerial work vehicle is used to hold an arm to which the switch is attached and close to the utility pole. An invention relating to a mounting method and an adapter is described.

JP 2001-341990 A JP 2002-199567 A

  The present invention can also be applied to a utility pole to which a conventional apparatus or method cannot be applied, reduces the number of power outages during work, and has a high workability and safety arm member mounting apparatus and arm member The attachment method and the removal method of an arm member are provided.

  An arm member mounting apparatus according to the present invention is an arm member mounting apparatus that is used in connection with a sub-boom of an aerial work vehicle in order to install a columnar arm member on a utility pole, and includes a columnar arm body and an arm. A support arm provided on the distal end side of the main body and including a head portion having an arm member fixing portion for fixing an arm member, a sub boom connecting portion connected to the sub boom, and a sub boom connecting portion that is tiltably connected in the vertical direction. And an adapter having a support arm connecting part that is detachably connected to the rear end side of the arm body of the support arm, and an inclination angle adjusting part that adjusts an inclination angle of the sub boom connecting part and the support arm connecting part. I have.

  The arm member attachment device of the present invention may include an insertion portion for inserting the arm member into the head portion of the support arm.

  In the arm member mounting apparatus according to the present invention, the support arm is connected to the head body so that the head section is tiltable in the horizontal direction with respect to the arm body, and the head tilt angle adjusting section that adjusts the tilt angle between the head section and the arm body. May be provided.

  Further, the arm member mounting device of the present invention is a joint for connecting the sub boom and the sub boom connecting portion of the adapter, and the longitudinal direction of the support arm connected to the adapter is a plan view with respect to the longitudinal direction of the sub boom. Angle-changing joints can be provided that are parallel or inclined.

  In the arm member mounting apparatus according to the present invention, the support arm may include an extension arm that extends the length of the support arm on the rear end side of the arm body. The rear end side of the extension arm is detachably connected to the support arm connecting portion of the adapter.

The arm member mounting method of the present invention is an arm member mounting method for mounting a columnar arm member to a utility pole using an aerial work vehicle having a sub-boom, and the arm member is located outside the live line proximity range of the utility pole. And a support arm having a columnar arm main body and a head portion provided on the distal end side of the arm main body so that the longitudinal direction thereof is substantially horizontal. In this way, the step of fixing the head portion to one end side of the arm member and the adapter connected to the sub-boom are moved to the rear of the support arm by the operation of the aerial work vehicle, and then the arm body of the support arm is moved. A step of moving substantially horizontally toward the rear end, and connecting to the rear end side of the arm body of the support arm; The step of lifting the arm member to the installation position of the utility pole by operating the aerial work vehicle, the step of fixing the arm member to the utility pole by the arm member fixture, and removing the support arm from the arm member, Is included.
Here, the operation of the aerial work vehicle means the operation of one or both of the main boom and the sub boom of the aerial work vehicle.

  The mounting method of the arm member of the present invention includes a head tilt angle adjustment unit that adjusts the tilt angle between the head unit and the arm body, the head unit of the support arm is connected to the arm body so as to be tiltable in the horizontal direction, When fixing the head part of the support arm to one end side of the arm member, the head part can be tilted in the horizontal direction with respect to the arm body, and after the arm member is moved up and down to the installation position of the utility pole, the head tilt angle adjustment part The horizontal direction of the arm member may be adjusted by adjusting the horizontal inclination of the head member with respect to the arm body.

  The arm member mounting method of the present invention is a joint for connecting a sub boom and an adapter, and the longitudinal direction of a support arm connected to the adapter is parallel or inclined with respect to the longitudinal direction of the sub boom in plan view. An angle changing joint may be provided.

The method for removing an arm member according to the present invention is a method for removing an arm member for removing a columnar arm member attached to a utility pole by an arm member fixture using an aerial work vehicle having a sub-boom, and is attached to the arm member. A step of separating the lead wires of the device and a support arm having a columnar arm main body and a head portion provided on the distal end side of the arm main body so that the longitudinal direction thereof is substantially horizontal, the head portion is placed on one end side of the arm member. Fixing, and
The adapter connected to the sub-boom is moved to the rear of the support arm by operating the aerial work platform, and then moved substantially horizontally toward the rear end of the arm body of the support arm. A step of connecting to the end side, a step of releasing the fixing of the arm member to the power pole by the arm member fixing tool, and a step of raising and lowering the arm member to a portion outside the live line proximity range of the power pole by operation of the aerial work vehicle; Removing the support arm from the arm member and detaching the arm member from the utility pole.

  The arm member attaching device, arm member attaching method and arm member removing method of the present invention have a wider range of application than conventional devices or methods and can be applied to various electric poles. The number of power outages during work can be reduced, and workability and safety during work can be improved.

  In the arm member attachment device of the present invention, when the insertion portion for inserting the arm member is provided in the head portion of the support arm, the arm member can be reliably supported by the support arm.

  Further, in the arm member mounting apparatus and arm member mounting method of the present invention, the head portion is connected to the arm body so as to be tiltable in the horizontal direction, and the head for fixing the tilt angle between the head portion and the arm body to the support arm. When the inclination angle adjustment unit is provided, the horizontal direction of the arm member can be easily adjusted.

  Further, in the arm member mounting apparatus and the arm member mounting method of the present invention, when an angle changing joint is provided, a lead-in wire or the like is provided on the utility pole, and the lead-in wire or the like becomes an obstacle, and the adapter cannot be brought close to the support arm. Even in this case, the adapter can be connected to the support arm while avoiding the lead-in wire or the like.

  In the arm member mounting apparatus of the present invention, when the extension arm is provided, the utility pole is provided with a low-voltage line arm member or the like that supports the low-voltage line, and the low-voltage line arm member or the like becomes an obstacle to support the adapter. Even if it is not possible to make it close to the adapter, it is possible to connect the adapter close to the support arm.

It is a top view which shows the support arm which is a structure of the attachment apparatus of the arm member of embodiment of this invention. It is the II-II sectional view taken on the line of FIG. It is a front view which shows a support arm. It is the perspective view which looked at the adapter which is a structure of the attachment apparatus of the arm member of embodiment of this invention from the plane side. It is the perspective view which looked at the adapter from the bottom face side. It is a side view which shows the connection state of an adapter. It is a schematic diagram explaining the movement of the lock arm of an adapter. It is a schematic diagram explaining the movement of the lock arm of an adapter. It is a front view explaining the movement of the lever rotation control part of an adapter. It is a front view explaining the movement of the lever rotation control part of an adapter. It is a top view which shows the extension arm which is a structure of the attachment apparatus of the arm member of embodiment of this invention. It is the XII-XII sectional view taken on the line of FIG. It is a front view which shows an extension arm. It is a disassembled plan view which shows the angle change coupling which is a structure of the attachment apparatus of the arm member of embodiment of this invention. It is a disassembled side view which shows an angle change coupling. It is a top view which shows an angle change coupling. It is a side view which shows an angle change coupling. It is a rear view which shows an angle change coupling. It is a front view which shows the condition which temporarily fixes an arm member to a utility pole. It is a side view which shows the state which temporarily fixed the arm member to the utility pole by which the high voltage line and the low voltage line were constructed. It is a front view which shows the state which connected the support arm to the arm member. It is a front view which shows the condition which connects an adapter to a support arm. It is a front view which shows the condition which makes an adapter adjoin to a support arm in the utility pole by which the low voltage line was constructed with the high voltage line. It is a front view which shows the state which connected the extension arm to the support arm. It is a front view which shows the state which connected the adapter to the extension arm. It is a front view which shows the condition which makes an adapter adjoin to a support arm in the utility pole by which the lead-in line was constructed. It is a top view which shows the condition which makes an adapter adjoin to a support arm in the utility pole by which the lead-in line was constructed. It is a front view which shows the state which connected the adapter connected via a sub boom and an angle change coupling to the support arm. It is a top view which shows the state which connected the adapter connected via a sub boom and an angle change coupling to the support arm. It is a front view which shows the condition which raises / lowers an arm member. It is a front view which shows the state which the connection operation | work of the lead wire was completed. It is a side view which shows the condition which attaches an arm member to a utility pole with an approach arm apparatus. It is a side view which shows the condition which attaches an arm member with the approach arm apparatus to the utility pole by which the low voltage line was wired with the high voltage line.

Hereinafter, an arm member attaching device, an arm member attaching method, and an arm member removing method according to an embodiment of the present invention will be described.
First, an arm member mounting apparatus according to an embodiment of the present invention will be described. FIGS. 1-18 shows the attachment apparatus of the arm member of embodiment of this invention. An arm member mounting apparatus according to an embodiment of the present invention is an apparatus that is used by being connected to a sub-boom 116 of an aerial work vehicle in order to install a columnar arm member 102 on a power pole 100, and includes a support arm 1, And an adapter 30.

  As shown in FIGS. 1 to 3, the support arm 1 includes an arm main body 10 and a head portion 20 provided on the distal end side of the arm main body 10.

  The arm body 10 has a columnar shape, and in the present embodiment, has a rectangular tube shape. On the upper wall and the bottom wall on the rear end side of the arm body 10, through holes 12, 12 are provided to face each other. Further, through holes 12 and 12 are also provided on the left and right side walls on the rear end side of the arm body 10 so as to face each other.

The head portion 20 has a columnar shape, similar to the arm main body 10, and has a rectangular tube shape in the present embodiment. The distal end side of the arm body 10 is inserted into the rear end side of the head part 20, and the head part 20 is connected to the arm body 10 by a shaft part 22.
The shaft portion 22 includes a shaft body 22a having a head and a snap pin 22b. The shaft main body 22a is passed from the upper wall side through through holes 21a, 21a, 13, and 13 provided coaxially through the upper and bottom walls of the head portion 20 and the arm main body 10, respectively. And the snap pin 22b is attached to the part which protrudes outside from the bottom wall of the head part 20 among the shaft main bodies 22a. In order to adjust the clearance, the clearance between the shaft body 22a and the head portion 20 and the through holes 21a, 21a, 13, and 13 of the arm body 10 is a cylindrical clearance member 23 having a flange at one end. Is provided.
The head portion 20 is tiltable in the horizontal direction with respect to the arm body 10 by the above configuration.

A head tilt angle adjusting unit 24 that adjusts the tilt angle between the head unit 20 and the arm body 10 is provided in a portion of the left and right side walls of the head unit 20 where the arm body 10 is inserted. .
The head inclination angle adjusting unit 24 includes a pair of plate-like base portions 24b extending in the left-right direction from the outer surface of the side wall of the head portion 20, a plate-like top portion 24c spanning the pair of base portions 24b, and a through hole 24d penetrating the top portion 24c. A frame portion 24a, a tilt angle adjusting nut 24e provided coaxially with the through hole 24d on the back surface of the top portion 24c of the frame portion 24a, and a tilt angle adjusting bolt 24f fastened to the tilt angle adjusting nut 24e. ing. Further, on the left and right side walls of the head portion 20, through holes 24g and 24g for allowing the inclination angle adjusting bolt 24f to pass are provided.
The inclination angle of the head portion 20 with respect to the arm body 10 is adjusted by tightening or loosening the left and right inclination angle adjusting bolts 24f and 24f, respectively. When the left and right inclination angle adjusting bolts 24f, 24f are tightened, the inclination angle adjusting bolts 24f, 24f abut against the side wall of the arm body 10, and the inclination angle of the head portion 20 with respect to the arm body 10 is fixed.

Inside the head portion 20 is an insertion portion 26 into which the arm member 102 is inserted. In addition, a stopper 28 is provided inside the head portion 20 in order to regulate the insertion length of the arm member 102 inserted into the insertion portion 26.
The stopper 28 includes a bolt 28a and a nut 28b fastened to the bolt 28a. The bolt 28 a is passed through through holes 28 c and 28 c formed in the upper wall and the bottom wall of the head portion 20, and is fastened by a nut 28 b on the outer surface of the bottom wall of the head portion 20.
When a plurality of through holes 28c, 28c on the top wall and bottom wall of the head portion 20 are formed in the longitudinal direction of the head portion 20, the length of the arm member 102 can be increased by changing the through holes 28c, 28c into which the bolts 28a are inserted. Accordingly, the insertion length of the arm member 102 in the insertion portion 26 can be changed.

The head portion 20 includes an arm member fixing portion 29 that fixes the arm member 102 inserted into the insertion portion 26 on the tip side of the stopper 28.
The arm member fixing portion 29 includes a pair of plate-like base portions 29b extending downward from the outer surface of the bottom wall of the head portion 20, a plate-like top portion 29c spanning the pair of base portions 29b, and a through hole 29d penetrating the top portion 29c. The frame portion 29a includes a nut 29e provided coaxially with the through hole 29d on the back surface of the top portion 29c, and a fixing bolt 29f fastened to the nut 29e. In the present embodiment, a universal bolt is used as the fixing bolt 29f. An annular portion 29g is provided at the head of the fixing bolt 29f in order to turn the fixing bolt 29f with a tool or the like. Further, a through hole 21b is provided in the bottom wall of the head portion 20 for passing the fixing bolt 29f.

  When the arm member 102 is inserted into the head portion 20 and the fixing bolt 29f is tightened, the fixing bolt 29f is inserted into the through hole 102b provided in the arm member 102, and the arm member 102 is fixed to the head portion 20. Further, when the fixing bolt 29f is loosened, the fixing bolt 29f is detached from the through hole 102b provided in the arm member 102, and the arm member 102 can be detached from the head portion 20.

As shown in FIGS. 4 to 6, the adapter 30 is connected to a sub boom connecting portion 31 that is connected to a sub boom 116 of an aerial work vehicle, and is connected to the sub boom connecting portion 31 so as to be tiltable in the vertical direction. A support arm connecting portion 41 that is detachably connected to the rear end side of one arm main body 10, and a tilt angle adjusting portion 49 that adjusts the tilt angle of the sub boom connecting portion 31 and the support arm connecting portion 41.
In addition, regarding the direction of the sub boom connection part 31 and the support arm connection part 41, the side into which the sub boom 116 or the support arm 1 is inserted is a front side (front side), and the sub boom connection part 31 and the support arm connection part 41 are connected. The side is the rear side.

The sub boom connecting portion 31 includes a cylindrical sub boom connecting portion main body 33 and a guide portion 35 provided at the rear end of the sub boom connecting portion main body 33.
The tip side of the sub boom 116 of the aerial work vehicle is inserted into the sub boom connecting portion main body 33. Then, the bolt 33b is inserted into the through holes 33a, 33a provided in the side wall of the sub boom connecting part main body 33 and the through hole (not shown) provided in the side wall of the sub boom 116 and fastened with the nut 33c, whereby the sub boom connecting part 31 is inserted. And the sub boom 116 are connected.
The guide part 35 is provided at the rear end of the sub boom connecting part main body 33, and includes a connecting wall 35a extending in the vertical direction and a pair of guide walls 35c extending rearward from the left and right ends of the connecting wall 35a. . The connecting wall 35a is provided with a through hole 35b through which an inclination angle adjusting bolt 49a described later is passed.

The support arm connecting portion 41 includes a support arm connecting portion main body 43, an introduction portion 44 provided at the tip of the support arm connecting portion main body 43, and a rear wall 45 extending upward from the rear end of the upper wall of the support arm connecting portion main body 43. And a cylindrical bearing 47 provided on the rear end side of the bottom wall of the support arm connecting portion main body 43 and extending in the left-right direction.
The introduction part 44 is for facilitating insertion of the arm body 10 of the support arm 1 into the support arm connecting part body 43, and is inclined outward so that the opening is widened toward the front.
On the left and right side walls of the support arm connecting portion main body 43, through holes 43a and 43a for passing lock arms 56 and 56 described later are provided to face each other.
Support walls 45b and 45b are provided on the front surface of the rear wall 45 with a space left and right. Further, a through hole 45a is provided between the support walls 45b and 45b of the rear wall 45 for allowing an inclination angle adjusting bolt 49a described later to pass therethrough.

  A rear portion of the support arm connecting portion 41 is housed inside the guide portion 35 of the sub boom connecting portion 31. The shaft body 37a of the lower shaft portion 37 is passed through the through hole (not shown) of the guide wall 35c of the sub boom connection portion 31 and the bearing 47 of the support arm connection portion 41. The lower shaft portion 37 includes a shaft portion main body 37a having a head portion, and a cotter pin 37b attached to a portion of the shaft portion main body 37a that protrudes outside the guide wall 35c.

A guide hole 35d penetrating in an arc shape is provided on the upper portion of the guide wall 35c of the sub boom connecting portion 31. The shaft portion main body 39a of the upper shaft portion 39 is passed through the guide hole 35d of the guide wall 35c of the sub boom connecting portion 31 and the through hole (not shown) in the side wall of the support arm connecting portion 41.
The upper shaft portion 39 includes a shaft portion main body 39a having a head, a washer 39b, and a cotter pin 39c. The shaft portion main body 39a is inserted from one of the left and right guide holes 35d, and a washer 39b is inserted into a portion protruding outward from the other guide hole 35d, and a cotter pin 39c is attached. The upper shaft portion 39 moves along the guide hole 35d as the sub boom connecting portion 31 and the support arm connecting portion 41 are inclined.

The inclination angle adjusting unit 49 includes an inclination angle adjusting bolt 49a and an inclination angle adjusting nut 49b. The tip of the inclination angle adjusting bolt 49a is formed in an annular shape, and a shaft portion 49d provided between the support walls 45b and 45b is passed through the annular portion. Therefore, the inclination angle adjusting bolt 49a is supported by the shaft portion 49d so as to be rotatable in the vertical direction. Since the configuration of the shaft portion 49d is the same as that of the upper shaft portion 39, description thereof is omitted here. The inclination angle adjusting bolt 49a is passed through the through holes 45a and 35b of the rear wall 45 and the connecting wall 35a, and the inclination angle adjusting nut 49b is fastened through a spherical washer 49c. The rotation range of the inclination angle adjusting bolt 49a is restricted by the rear wall 45 and the through holes 45a and 35b of the connecting wall 35a.
When the tilt angle adjusting nut 49b is turned, the tilt angle between the sub boom connecting portion 31 and the support arm connecting portion 41 changes.

  A T-shaped lever 51 is attached to the bottom wall of the support arm connecting portion main body 43 so as to be rotatable in the vertical direction. In addition, a pair of support plates 53 and 53 are provided on the bottom wall of the support arm connecting portion main body 43 so as to be spaced from each other in the front-rear direction. A rotation restricting hole 53a penetrating vertically is provided at the center of each support plate 53, and the lever 51 is passed through the rotation restricting hole 53a. The rotation range of the lever 51 is regulated by the rotation regulation hole 53a.

Between the pair of support plates 53, 53, as shown in FIGS. 7 and 8, a pair of left and right rotating plates 55, 55 are freely rotatable by a shaft portion parallel to the longitudinal direction of the support arm connecting portion 41. It is supported by. Each rotary plate 55 is provided with a wide elongated hole 55a in a portion closer to the inside thereof. The lever 51 is passed through these long holes 55a and 55a. Each rotary plate 55 is connected to a columnar lock arm 56 bent at the outer end thereof.
With such a configuration, the adapter 30 can detachably connect the support arm 1. Specifically, when the lever 51 of the adapter 30 is lowered, the rotating plates 55 and 55 and the lock arms 56 and 56 are rotated, and the leading ends of the lock arms 56 and 56 are penetrated through the side wall of the support arm connecting portion main body 43. The support arm connecting portion 41 and the support arm are connected through the holes 43a and 43a and through holes 12 and 12 provided in the side wall of the arm main body 10 of the support arm 1 inserted into the support arm connecting portion main body 43 (FIG. 8). reference). On the contrary, when the lever 51 is raised, the rotary plates 55 and 55 and the lock arms 56 and 56 rotate, and the support arm connecting portion main body 43 and the support arm 1 through the through-holes 43a, 43a, 12, and 12 to the lock arm 56, 56 is released, and the connection between the support arm 1 and the support arm connecting portion 41 is released (see FIG. 7).

Of the bottom wall of the support arm connecting portion main body 43, on the rear side of the support plate 53, a rail 58 extending in the left-right direction, a lever rotation restricting portion 59 fitted in the rail 58 and sliding in the left-right direction, Is provided. As shown in FIGS. 9 and 10, the lever rotation restricting portion 59 is symmetrical in shape, and has a concave portion 59 a that is recessed upward toward the center, and convex portions 59 b and 59 b that are positioned on the left and right of the concave portion 59 a, It has. Further, the convex portion 59b is provided with a handle portion 59c made of a through hole. The lever rotation restricting portion 59 is provided with a slide restricting portion 59d at its upper end that restricts the slide range of the lever rotation restricting portion 59 and prevents the lever rotation restricting portion 59 from falling off. The end near the outside of the slide restricting portion 59d protrudes upward, and when the lever rotation restricting portion 59 is slid, the protruded end abuts against the side wall of the support arm connecting portion main body 43 and the lever rotates. The slide of the restriction part 59 is restricted.
According to the lever rotation restricting portion 59, when the concave portion 59a of the lever rotation restricting portion 59 is positioned above the lever 51, the lever 51 can be rotated up and down, and the lever rotation restricting portion 59 is slid to either the left or right. When the projection 59b is brought into contact with the lever 51, the rotation of the lever 51 is restricted.

In the arm member mounting apparatus of the present invention, the extension arm 60 can be detachably connected to the rear end side of the arm body 10 of the support arm 1 in order to extend the length of the support arm 1. The extension arm 60 is detachably connected to the support arm connecting portion 41 of the adapter 30.
As shown in FIGS. 11 to 13, the extension arm 60 includes an extension arm main body 62 and an extension arm head portion 64.

  The extension arm main body 62 has a columnar shape like the arm main body 10 of the support arm 1, and in the present embodiment, has a rectangular tube shape. On the left and right side walls on the rear end side of the extension arm main body 62, through holes 62a and 62a are provided to face each other.

  The extension arm head portion 64 has a columnar shape as in the extension arm main body 62, and in this embodiment, has a rectangular tube shape. The extension arm head portion 64 is connected at its rear end to the tip of the extension arm main body 62. On the upper wall and the bottom wall of the extension arm head portion 64, through holes 64a and 64a are provided to face each other. Inside the extension arm head portion 64 is an insertion portion 66 into which the arm body 10 of the support arm 1 is inserted.

As for the connection between the extension arm 60 and the support arm 1, the rear end side of the arm body 10 of the support arm 1 is inserted into the extension arm head part 64, and is provided facing the upper wall and the bottom wall of the extension arm head part 64. Bolts 64b are inserted into the through holes 64a, 64a to be formed and the through holes 12, 12 provided to face the upper wall and the bottom wall of the arm body 10 of the support arm 1, and a nut 64c is fastened and connected.
Regarding the connection between the extension arm 60 and the adapter 30, the rear end side of the extension arm main body 62 is inserted into the support arm connecting portion main body 43 of the adapter 30, and the lock arms 56, 56 are supported by the operation of the lever 51 of the adapter 30. The connection portion main body 43 is connected through the through holes 43 a and 43 a and the extension arm main body 62 through the through holes 62 a and 62 a.

  The arm member mounting apparatus according to the present invention is a joint for connecting the sub boom 116 and the adapter 30, and the longitudinal direction of the support arm 1 connected to the adapter 30 directly or via the extension arm 60 is set in the longitudinal direction of the sub boom 116. An angle changing joint 70 may be provided that is parallel to or inclined with respect to the direction in plan view.

  As shown in FIGS. 14 to 18, the angle changing joint 70 in the present embodiment is connected to the first connecting portion 71 connected to the sub boom 116, the first connecting portion 71, and the sub boom connecting portion 31 of the adapter 30. A second connecting portion 81 to be connected.

  The first connecting portion 71 is connected to the angle changing plate 73 in which two adjacent side plates are connected at a substantially right angle, the lid portion 75 provided at the upper end of the angle changing plate 73, and the rear surface of the angle changing plate 73, and downward. An inclined rectangular tube-shaped first connecting portion main body 77. The two side plates of the angle changing portion plate 73 are provided with through holes 73a and 73a and nuts 73b and 73b, respectively, for fastening the bolt 83b. The lid portion 75 is provided with a through hole 75a and a nut 75b for fastening the bolt 89b. On the side wall of the first connecting portion main body 77, through holes 77a and 77a are provided to face each other in order to connect the sub boom 116 with bolts and nuts.

  The second connecting portion 81 includes a connecting plate 83 and a second connecting portion main body 85 that is connected to the front surface of the connecting plate 83 and is inclined upward. On the side wall of the second connecting portion main body 85, through holes 85a and 85a are provided to face each other in order to connect the sub boom connecting portion main body 33 of the adapter 30 with the bolt 33b and the nut 33c. Rear side plates 87 and 87 extending rearward are provided on both side ends of the connecting plate 83, and a rear upper plate 89 extending rearward is provided on the upper portion of the connecting plate 83. The connecting plate 83 is provided with a through hole 83a for passing the bolt 83b. The rear upper plate 89 is also provided with two through holes 89a and 89a for passing the bolts 89b.

  Regarding the connection between the first connecting portion 71 and the second connecting portion 81, first, the rear surface of the connecting plate 83 of the second connecting portion 81 is placed on the front surface of one side plate of the angle changing plate 73 of the first connecting portion 71. At the same time, the rear upper plate 89 of the second connecting portion 81 is placed on the lid portion 75 of the first connecting portion 71. The bolts 89b are fastened to the through holes 89a of the rear upper plate 89, the through holes 75a and the nuts 75b of the lid, and the bolts 83b are fastened to the through holes 83a of the connecting plate 83 and the through holes 73a and the nuts 73b of the angle changing plate 73. To be connected.

  In the angle changing joint 70, the second connecting portion 81 is inclined in the vertical direction and the horizontal direction with respect to the first connecting portion 71 in a state where the longitudinal direction of the first connecting portion 71 is parallel to the vertical direction. ing. In the connection between the first connecting portion 71 and the second connecting portion 81, when the connecting plate 83 of the second connecting portion 81 is brought into contact with the other side plate of the angle changing plate 73 of the first connecting portion 71 and connected, The horizontal inclination angle between the first connecting portion 71 and the second connecting portion 81 can be changed.

  When the angle changing joint 70 is interposed between the adapter 30 and the sub boom 116, the longitudinal direction of the support arm 1 connected to the adapter 30 directly or via the extension arm 60 is perpendicular to the longitudinal direction of the sub boom 116. And also in the horizontal direction.

  The angle changing joint 70 is configured so that the longitudinal direction of the support arm 1 connected to the adapter 30 directly or via the extension arm 60 is parallel or inclined with respect to the longitudinal direction of the sub boom 116 in plan view. Any configuration is acceptable.

Next, an arm member attaching method using the arm member attaching device will be described. 19 to 31 show an arm member attachment method using an arm member attachment apparatus. Here, a case will be described in which the arm member 102 to which the CF breaker 104 (high voltage cutout) or the like is attached is attached to the utility pole 100 on which the high voltage line 101a is wired. The high-voltage line 101a is supported by an arm member 101b for high-voltage line attached to the utility pole 100.
In addition, regarding the direction of the utility pole 100, the overhead line direction of the high voltage line 101a is a front-rear direction, and a direction perpendicular to the front-rear direction is a left-right direction (side). Moreover, let the longitudinal direction of the utility pole 100 be an up-down direction.

The aerial work vehicle used for attaching the arm member includes an aerial work vehicle (not shown), a main boom 114 provided in the aerial work vehicle, a bucket 112 attached to the front end side of the main boom 114, a bucket 112, and a sub boom 116 provided at 112.
The main boom 114 can be rotated in the horizontal direction and the vertical direction, and can be expanded and contracted. The sub boom is also rotatable in the horizontal direction and the vertical direction. The bucket 112 is provided with a space for an operator to work.
In the following description, the operation of an aerial work vehicle refers to operating both or one of the main boom 114 and the sub boom 116.

As for the attachment method of the arm member, as shown in FIG. 19, first, an operator rides on the bucket 112 of the aerial work vehicle or climbs directly to the utility pole 100 so that the high voltage line 101a is out of the live line proximity range. In this portion, the arm member 102 is temporarily fixed by the arm member fixing tool 102a. The arm member 102 is attached to the utility pole 100 so as to be substantially perpendicular to the longitudinal direction of the utility pole 100 and the overhead line direction of the high voltage line 101a. As the arm member fixture 102a, for example, a variable arm band can be used.
In addition, as shown in FIG. 20, when not only the high voltage line 101a but also the low voltage line 101c is installed below the high voltage line 101a, the arm member 102 is connected between the high voltage line 101a and the low voltage line 101c. Temporarily fix the part outside the live line proximity range.

  Next, the worker attaches the CF breaker 104 and the high-voltage pull-down line support insulator to the temporarily fixed arm member 102.

Next, the adapter 30 is connected to the sub boom 116 of the aerial work platform. Specifically, the front end side of the sub boom 116 is inserted into the sub boom connecting portion main body 33 of the adapter 30, and a through hole 33 a provided in the side wall of the sub boom connecting portion main body 33 and a through hole provided in the side wall of the sub boom 116 (illustrated). The bolts 33b are passed through (not shown), and are connected by fastening with nuts 33c.
If the adapter 30 has already been connected to the sub boom 116, this step is omitted.

  Next, as shown in FIG. 21, the support arm 1 is connected to the arm member 102 temporarily fixed to the utility pole 100 such that the longitudinal direction thereof is substantially horizontal. Specifically, one end side in the longitudinal direction of the arm member 102 is inserted into the insertion portion 26 of the head portion 20 of the support arm 1. Further, in order to fix the arm member 102 to the support arm 1, the annular portion 29 g of the arm member fixing portion 29 is turned with a tool, and the fixing bolt 29 f is inserted into the through hole 102 b provided in the arm member 102. Further, the tilt angle adjusting bolt 24f of the support arm 1 is loosened so that the head portion 20 can be tilted with respect to the arm body 10.

  Next, as shown in FIG. 22, the aerial work vehicle is operated to move the adapter 30 connected to the sub boom 116 so as to be positioned behind (longitudinal) the support arm 1. At this time, the longitudinal direction of the support arm connecting portion 41 of the adapter 30 is made substantially horizontal by the operation of the aerial work vehicle and the adjustment of the inclination angle adjusting portion 49 of the adapter 30, and the opening of the support arm connecting portion 41 is opened. The part is set to face the rear end of the arm body 10 of the support arm 1. Adjustment of the inclination angle adjustment part 49 of the adapter 30 is performed by turning the inclination angle adjustment nut 49b with a tool.

Next, the aerial work vehicle is operated to horizontally move the adapter 30 toward the rear end of the arm main body 10 of the support arm 1 and connect the adapter 30 to the rear end of the arm main body 10 of the support arm 1.
As for the connection between the adapter 30 and the support arm 1, the rear end side of the arm main body 10 of the support arm 1 is inserted into the support arm connecting portion main body 43 of the adapter 30 and the lever 51 of the adapter 30 is lowered. Lock arms 56, 56 are inserted into and connected to the through holes 12, 12 provided in the side wall 10 and the through holes 43 a, 43 a provided in the side wall of the support arm connecting portion main body 43. Further, after the lock arms 56, 56 are inserted into the through holes 12, 12, 43a, 43a, the lever rotation restricting portion 59 is slid left or right so that the lever 51 does not rotate.

Here, as shown in FIG. 23, in the utility pole 100 in which the low-voltage line 101c supported by the arm member 101d is wired and the arm member 101d of the low-voltage line 101c protrudes in the left-right direction of the utility pole 100, the adapter 30 Is moved horizontally toward the rear end of the arm body 10 of the support arm 1, the bucket 112 of the aerial work platform collides with the arm member 101 d of the low pressure wire 101 c, so that the adapter 30 is brought close to the support arm 1. I can't. When attaching the arm member 102 to such a utility pole 100, the extension arm 60 is connected to the support arm 1 as shown in FIG.
The support arm 1 and the extension arm 60 are connected by inserting the rear end side of the arm body 10 of the support arm 1 into the extension arm head portion 64 of the extension arm 60, and the upper wall of the extension arm head portion 64 of the extension arm 60. Bolts 64b are passed through through holes 64a, 64a provided in the bottom wall and through holes 12, 12 provided in the upper wall and the bottom wall of the arm body 10 of the support arm 1 and fastened with nuts 64c.
As shown in FIG. 25, when the extension arm 60 is used, the adapter 30 is supported through the extension arm 60 even when the existing arm member 101 d or the like exists in the traveling direction of the bucket 112 of the aerial work vehicle. It can be connected to the arm 1.

Further, as shown in FIGS. 26 and 27, in the utility pole 100 in which the lead-in wire 101 e is extended in the substantially left-right direction of the utility pole 100, the adapter 30 is moved horizontally toward the rear end of the arm body 10 of the support arm 1. At this time, the bucket 112 of the aerial work vehicle contacts the lead-in wire 101e, and the adapter 30 cannot be brought close to the support arm 1. When the arm member 102 is attached to such a utility pole 100, an angle changing joint 70 is connected between the adapter 30 and the sub boom 1 as shown in FIGS.
The angle change joint 70 is connected by inserting the tip end portion of the sub boom 116 into the first connection portion main body 77 of the angle change joint 70, and through holes 77 a and 77 a provided on the side wall of the first connection main body 77 of the angle change joint 70. A bolt is inserted into a through hole provided in the side wall of the sub boom 116 and fastened with a nut, and the second connecting portion main body 85 of the angle changing joint 70 is inserted into the sub boom connecting portion main body 33 of the adapter 30 to connect the sub boom of the adapter 30. This is done by inserting bolts 33b into the through holes 33a, 33a provided in the side walls of the main body 33 and through holes 85a, 85a provided in the side walls of the second connecting portion main body 85 of the angle changing joint 70 and fastening them with the nuts 33c. .
When the angle changing joint 70 is used, the adapter 30 can be connected to the support arm 1 even when the lead-in wire 101e or the like is wired in the traveling direction of the bucket 112 of the aerial work platform.

  Note that the extension arm 60 and the angle changing joint 70 may be used in combination according to the mode of the utility pole 100.

When the process of connecting the adapter 30 to the support arm 1 is completed, as shown in FIG. 30, the arm member 102 is released from being fixed to the utility pole 100 by the arm member fixing tool 102a, and the work vehicle at the height is operated to The member 102 is moved up and down to the installation position of the utility pole 100.
In order to securely support the arm member 102, the tilt angle between the support arm connecting portion 41 and the sub boom connecting portion 31 is adjusted by the tilt angle adjusting portion 49 of the adapter 30 before the arm member 102 is lifted and lowered. The load of the arm member 102 is applied.

  Next, the horizontal inclination angle of the arm member 102 is adjusted, and the arm member 102 is fixed to the utility pole 100 by the arm member fixture 102a. The horizontal tilt angle of the arm member 102 is adjusted by turning the left and right tilt angle adjusting bolts 24f, 24f of the support arm 1 with a tool or the like.

  Next, the support arm 1 is removed from the arm member 102. To remove the support arm 1, first, the annular portion 29g of the arm member fixing portion 29 of the support arm 1 is turned with a tool to release the fixing of the arm member 102 by the fixing bolt 29f. Next, the aerial work vehicle is operated to horizontally move the support arm 1 rearward and remove it from the arm member 102.

Next, the support arm 1 is removed from the adapter 30 as necessary. Specifically, the lever rotation restricting portion 59 of the adapter 30 is slid to release the rotation restriction of the lever 51, and the lever 51 is rotated to support the support arm 1 and the support arm connecting portion of the adapter 30 by the lock arms 56, The fixation with the main body 43 is released, and the support arm 1 is taken out from the support arm connecting portion main body 43 of the adapter 30.
Moreover, the adapter 30 is removed from the sub boom 116 as needed. The removal is performed by releasing the fastening of the bolt 33b and the nut 33c.

  Finally, the operator connects the CF primary-side lead wire 104a to the high-voltage wire 102a using a tool. Furthermore, after attaching the transformer 106 to the utility pole 100, the CF secondary-side lead wire 104b is connected to the transformer 106 using a tool, and the operation is completed (see FIG. 31).

  The arm member mounting device and the arm member mounting method of the present invention have a wider range of application than conventional devices or methods, and can be applied to various utility poles 100, thereby reducing the number of power outages in the arm member 102 mounting operation. It is possible to improve workability and safety.

  The arm member mounting apparatus of the present invention is smaller and lighter than the conventional approach arm apparatus, and the number of parts can be greatly reduced.

  In the arm member mounting apparatus of the present invention, when the insertion portion 26 for inserting the arm member 102 is provided in the head portion 20 of the support arm 1, the arm member 102 can be reliably supported by the support arm 1.

  In the arm member attachment apparatus and arm member attachment method of the present invention, the head portion 20 of the support arm 1 can be tilted in the horizontal direction with respect to the arm body 10, and the head portion 20, the arm body 10, If the head tilt angle adjusting unit 24 for adjusting the tilt angle of the arm member 102 is provided, the horizontal direction of the arm member 102 can be easily adjusted.

  Further, in the arm member mounting apparatus and arm member mounting method of the present invention, when the angle changing joint 70 is provided, the lead-in wire 101e or the like is placed on the utility pole 100, and the lead-in wire 101e or the like becomes an obstacle, so that the adapter 30 is supported. Even when it is not possible to make the adapter 30 close to the support arm 1, the adapter 30 can be connected to the support arm 1 while avoiding the lead-in wire 101e or the like.

  In addition, in the arm member mounting apparatus and arm member mounting method of the present invention, when the extension arm 60 is provided, the utility pole 100 is provided with an arm member 101d for supporting the low voltage line 101c, and the arm member 101d is regarded as an obstacle. Even when the adapter 30 cannot be brought close to the support arm 1, the adapter 30 can be brought close to the support arm 1 and connected.

  Next, a method for removing the arm member using the arm member attaching device will be described. Here, a case will be described in which the arm member 102 attached to the utility pole 100 to which the high-voltage wire 101a is wired and the arm member 102 to which the CF circuit breaker 104 (high-voltage cutout) or the like is attached is removed. In addition, description is abbreviate | omitted about the matter demonstrated above.

  First, the operator disconnects the CF primary lead wire 104a from the high voltage wire 101a and the CF secondary lead wire 104b from the transformer 106 using a tool or the like.

  Next, the support arm 1 is connected to the arm member 102 fixed to the utility pole 100 using a tool.

Next, the aerial work vehicle is operated to move the adapter 30 connected to the sub boom 116 so as to be positioned behind the support arm 1 (on the longitudinal extension line). At this time, the opening on the distal end side of the support arm connecting portion main body 41 of the adapter 30 is directed toward the support arm 1.
Next, the adapter 30 is horizontally moved toward the rear end of the arm body 10 of the support arm 1 and connected to the rear end side of the arm body 10 of the support arm 1.

  Next, the arm member 102 is released from being fixed to the utility pole 100 by the arm member fixture 102 a, and the bucket 112 of the work vehicle at a height is moved up and down to move the arm member 102 out of the live line proximity range of the utility pole 100.

  Finally, the support arm 1 is removed from the arm member 102, and the arm member 102 is removed from the utility pole 100.

  In addition, also in removal of an arm member, the extension arm 60 and the angle change coupling 70 can be used as needed like attachment of an arm member.

  The arm member attachment device and the arm member removal method of the present invention can reduce the number of power outages in the arm member removal work, and can improve workability and safety.

  The arm member attachment device, the arm member attachment method, and the arm member removal method of the present invention are not particularly limited to the above embodiment, and can be changed within the scope of the gist of the present invention.

The arm member mounting apparatus, the arm member mounting method, and the arm member removal method according to the present invention are not particularly limited to the arm member of the CF shield, and other arm members installed on the power pole It is applicable also to an arm member.
Moreover, the column to which the arm member is attached is not limited to the utility pole, and can be applied to a column for other purposes.

DESCRIPTION OF SYMBOLS 1 Support arm 10 Arm main body 12,13 Through-hole 20 Head part 21a, 21b Through-hole 22 Shaft part 22a Shaft main body 22b Snap pin 23 Clearance member 24 Head inclination angle adjustment part 24a Frame part 24b Base part 24c Top part 24d Through-hole 24e Inclination angle Adjustment nut 24f Inclination angle adjustment bolt 24g Through hole 26 Insertion portion 28 Stopper 28a Bolt 28b Nut 28c Through hole 29 Arm member fixing portion 29a Frame portion 29b Base portion 29c Top portion 29d Through hole 29e Nut 29f Fixing bolt 29g Ring portion 30 Adapter 31 Part 33 Sub boom connecting part main body 33a Through hole 33b Bolt 33c Nut 35 Guide part 35a Connecting wall 35b Through hole 35c Guide wall 35d Guide hole 37 Lower shaft part 37a Shaft part body 37b Pin 39 Upper shaft portion 39a Shaft portion main body 39b Washer 39c Cotter pin 41 Support arm connecting portion 43 Support arm connecting portion main body 43a Through hole 44 Introduction portion 45 Rear wall 45a Through hole 45b Support wall 47 Bearing 49 Inclination angle adjustment portion 49a Inclination angle adjustment Bolt 49b Inclination angle adjusting nut 49c Spherical washer 49d Shaft 51 Lever 53 Support plate 53a Rotation restricting hole 55 Rotating plate 55a Long hole 56 Lock arm 58 Rail 59 Lever rotation restricting part 59a Concave 59b Convex part 59c Handle part 59d Slide restricting part 60 Extension arm 62 Extension arm body 62a Through hole 64 Extension arm head part 64a Through hole 64b Bolt 64c Nut 66 Insertion part 70 Angle changing joint 71 First connecting part 73 Angle changing plate 73a Through hole 73b Nut 75 Lid part 75a Through hole 75b Nut 77 First connecting portion main body 77a Through hole 81 Second connecting portion 83 Connecting plate 83a Through hole 83b Bolt 85 Second connecting portion main body 85a Through hole 87 Rear side plate 89 Rear upper plate 89a Through hole 89b Bolt 100 Electric pole 101a High voltage line 101b Arm member (for high voltage line)
101c Low voltage line 101d Arm member (for low voltage line)
101e Pull-in wire 102 Arm member 102a Arm member fixture 102b Through hole 104 CF breaker 104a CF primary side lead wire 104b CF secondary side lead wire 106 Transformer 112 Bucket 114 Main boom 116 Sub boom

Claims (9)

In order to install a columnar arm member on a power pole, an arm member mounting device used in connection with a sub-boom of an aerial work vehicle,
A support arm including a columnar arm main body, and a head portion provided on a distal end side of the arm main body and having an arm member fixing portion for fixing the arm member;
A sub-boom connecting part connected to the sub-boom, a support arm connecting part connected to the sub-boom connecting part so as to be tiltable in the vertical direction, and detachably connected to the rear end side of the arm body of the support arm; An adapter having a sub boom connecting part and an inclination angle adjusting part for adjusting an inclination angle of the support arm connecting part;
A device for attaching an arm member, comprising:   The arm member mounting device according to claim 1, wherein the support arm includes an insertion portion for inserting the arm member into the head portion.   The support arm includes a head tilt angle adjustment unit that is coupled to the head body so as to be tiltable in a horizontal direction with respect to the arm body, and that adjusts a tilt angle between the head part and the arm body. The arm member mounting apparatus according to claim 1 or 2.   The joint that connects the sub boom and the sub boom connecting portion of the adapter, wherein the longitudinal direction of the support arm that is connected to the adapter is parallel or inclined with respect to the longitudinal direction of the sub boom in plan view 4. The arm member mounting apparatus according to claim 1, further comprising a modified joint.   The support arm includes an extension arm that extends a length of the support arm on a rear end side of the arm body, and a rear end side of the extension arm is detachably connected to a support arm connecting portion of the adapter. The arm member mounting apparatus according to claim 1, 2, 3, or 4. An arm member attachment method for attaching a columnar arm member to a utility pole using an aerial work vehicle having a sub-boom,
Temporarily fixing the arm member to a portion outside the live line proximity range of the utility pole with an arm member fixture so that the longitudinal direction thereof is substantially horizontal;
A step of fixing the head portion to one end side of the arm member such that a support arm having a columnar arm main body and a head portion provided on the tip side of the arm main body is substantially horizontal in the longitudinal direction;
The adapter connected to the sub-boom is moved rearward of the support arm by operating an aerial work vehicle, and then moved substantially horizontally toward the rear end of the arm body of the support arm. Connecting to the rear end side of the arm body;
Releasing the fixing of the arm member to the utility pole by the arm member fixing tool, and raising and lowering the arm member to the installation position of the utility pole by operation of the aerial work vehicle;
Fixing the arm member to the utility pole by the arm member fixture, and removing the support arm from the arm member;
A method of attaching an arm member, comprising:   The support arm includes a head tilt angle adjusting unit that is connected to the head body so as to be tiltable in a horizontal direction with respect to the arm body, and that adjusts the tilt angle between the head part and the arm body. When fixing the head part to one end side of the arm member, the head part can be tilted horizontally with respect to the arm body, and the head member is tilted after the arm member is moved up and down to the installation position of the power pole. The arm member mounting method according to claim 6, wherein a horizontal direction of the arm member is adjusted by adjusting a horizontal inclination of the head member with respect to the arm body by an angle adjusting unit.   A joint that connects the sub boom and the adapter, and includes an angle changing joint that makes the longitudinal direction of the support arm coupled to the adapter parallel or inclined in a plan view with respect to the longitudinal direction of the sub boom. The method for attaching an arm member according to claim 6 or 7, wherein: An arm member removal method for removing a columnar arm member attached to a power pole by an arm member fixture using an aerial work vehicle having a sub-boom,
Detaching the lead wire of the device attached to the arm member;
A step of fixing the head portion to one end side of the arm member such that the longitudinal direction of the support arm having a columnar arm main body and a head portion provided on the distal end side of the arm main body is substantially horizontal;
The adapter connected to the sub-boom is moved rearward of the support arm by operating an aerial work vehicle, and then moved substantially horizontally toward the rear end of the arm body of the support arm. Connecting to the rear end side of the arm body;
Releasing the fixing of the arm member to the utility pole by the arm member fixing tool, and raising and lowering the arm member to a portion outside the live line proximity range of the utility pole by operation of the aerial work platform;
Removing the support arm from the arm member and removing the arm member from the utility pole;
A method for removing an arm member, comprising:

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