JP2022110796A - Temporary support method and aerial work platform vehicle - Google Patents

Abstract

To provide a temporary support method capable of eliminating unnecessary work.SOLUTION: A first aerial work platform vehicle is provided with a remote control device 300, which is detachably mounted on a first work platform 40 and can be removed from the first work platform 40 so as to control boom operation for operating a first boom 30 even at a position apart from the first work platform 40. An operator gets on a second work platform 540 of a second aerial work platform vehicle and controls the boom operation of the remote control device 300 removed from the first work platform 40 in the second work platform 540 apart from the first work platform 40 so that the first boom 30 is operated to temporarily support an electric wire C by a temporary support device 100.SELECTED DRAWING: Figure 23

Description

TECHNICAL FIELD The present invention relates to a temporary support construction method for temporarily supporting electric wires and an aerial work vehicle.

When rebuilding utility poles or replacing insulators that support electric wires on utility poles, aerial work vehicles are used to replace electric wires supported on utility poles. A temporary support construction method is adopted to temporarily support the The aerial work vehicle for temporarily supporting electric wires has a boom attached to the vehicle body so that it can be raised and lowered, a work table attached to the tip of the boom, and a temporary workbench attached to the tip of the boom. and a supporting device are known (see Patent Documents 1 and 2, for example).

Japanese Utility Model Publication No. 5-47198 Utility Model Registration No. 2508375

In such an aerial work vehicle, a worker on the workbench temporarily supports the wire on the temporary support device, and then moves the workbench to the workbench while the wire is temporarily supported by the temporary support device. Since it could not be moved from its position, other work could not be performed, resulting in wasted work.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a temporary support construction method and an aerial work platform capable of eliminating wasteful work.

In order to achieve such an object, the temporary support construction method according to the present invention includes a first boom provided on a movable first vehicle body so as to be able to operate including at least hoisting motion, and a tip of the first boom. a first workbench provided in the section, a first operating device for performing a boom operating operation for operating the first boom, and a temporary electric wire provided at the tip of the first boom. a first aerial work vehicle provided with a temporary support device for supporting; a second boom provided on a movable second vehicle body so as to be operable including at least hoisting motion; A second operating device (for example, the second upper operating device 545 in the embodiment) on which a boom operating operation for operating the second boom is performed. ), wherein the first operation device is provided on the first vehicle body and the first and a lower operating device for operating the boom, which is detachably attached to the first workbench and separated from the first workbench by being removed from the first workbench. a remote control device capable of boom operating operation for operating the first boom even in the position, performing boom operating operation of the lower operating device, operating the first boom, and temporarily supporting the device. to the vicinity of the electric wire located at a predetermined height, get on the second workbench, operate the second operating device provided on the second workbench to operate the boom, and 2 boom is operated to move the second workbench to the vicinity of the first workbench, and on the second workbench, the boom of the remote control device removed from the first workbench is operated. An operation is performed to operate the first boom to temporarily support the electric wire in the temporary support device.

In the temporary support construction method described above, the first aerial work vehicle includes an actuator (for example, the hoisting cylinder 23, the telescopic cylinder 31, and the turning motor 24 in the embodiment) that operates the first boom, and the lower operating device When the same boom operating operation as the boom operating operation of the lower operating device is performed by the remote control device, the speed at which the first boom operates in response to the boom operating operation of the remote operating device is the same as the boom operating operation of the lower operating device. and an operation control section for controlling the operation of the actuator so that the speed is lower than the speed at which the first boom operates in response to .

Further, the aerial work platform according to the present invention includes a boom provided on a vehicle body capable of traveling so as to be capable of operation including at least hoisting motion, a workbench provided at the tip of the boom on which a person can ride, and the boom A temporary support device that is provided at the tip of the temporary support device that temporarily supports the electric wire, a lower operating device that is provided on the vehicle body and performs a boom operation operation for operating the boom, and is detachably attached to the workbench and a remote control device capable of operating the boom to operate the boom even at a position removed from the workbench and separated from the workbench.

In the aerial work vehicle described above, the actuators (e.g., the hoisting cylinder 23, the telescopic cylinder 31, and the swing motor 24 in the embodiment) that operate the boom and the same boom operating operation as the boom operating operation of the lower operating device are remotely operated. When the operating device is operated, the speed at which the boom operates in response to the boom operating operation of the remote control device is lower than the speed at which the boom operates in response to the boom operating operation of the lower operating device. and an operation control section for controlling the operation of the actuator.

According to the temporary support construction method according to the present invention, the first operation device of the first aerial work vehicle is detachably attached to the first workbench, and is detached from the first workbench to the first operating device. A remote control device capable of operating the boom to operate the first boom even at a position remote from the workbench is included. Then, on the second workbench of the second aerial work platform, and on the second workbench away from the first workbench, operate the boom operation of the remote control device removed from the first workbench. Then, the first boom is operated to temporarily support the wire in the temporary support device. As a result, it is possible to temporarily support the electric wire on the temporary support device of the first aerial work vehicle without getting on the first workbench, so that wasteful work can be eliminated.

In the temporary support construction method described above, when the same boom operation operation as the boom operation operation of the lower operation device is performed by the remote operation device, the operation control unit operates the first boom according to the boom operation operation of the remote operation device. The actuation of the actuator is controlled such that the speed at which the first boom operates is lower than the speed at which the first boom operates in response to the boom actuation operation of the lower operating device. As a result, even if an erroneous operation is performed by the remote control device, the first boom operates at a relatively low speed, so that the phenomenon of lowering safety can be easily avoided, and the electric wire is not connected to the temporary support device. It is possible to improve the safety of the temporary support work.

Further, according to the aerial work platform according to the present invention, the remote control device is detachably attached to the work platform, and is detached from the work platform so that the boom can be actuated even at a position separated from the work platform. An operating device is provided. As a result, for example, you can get on another work platform of another aerial work platform, and on another work platform away from the work platform, operate the remote control device removed from the work platform to operate the boom. The electric wire can be temporarily supported by the temporary support device. In this way, the work of temporarily supporting the wires on the temporary support device can be performed without getting on the workbench, so that wasteful work can be eliminated.

In the aerial work vehicle described above, when the same boom actuation operation as the boom actuation operation of the lower operation device is performed by the remote control device, the actuation control unit controls the speed at which the boom operates according to the boom actuation operation of the remote control device. is lower than the boom operating speed in response to the boom operating operation of the lower operating device. As a result, even if an erroneous operation is performed by the remote control device, the boom operates at a relatively low speed, so that the phenomenon of lowering safety can be easily avoided, and the electric wire is temporarily supported by the temporary support device. Work safety can be improved.

1 is a side view of a first aerial work vehicle according to the present embodiment; FIG. It is a figure which shows the workbench and lifting apparatus of a 1st aerial work vehicle, (A) is a side view, (B) is a perspective view. It is a side view which shows the temporary support apparatus of a 1st vehicle for aerial work. FIG. 4 is a plan view showing an upper operating device provided on the workbench of the first aerial work platform; FIG. 4 is a rear view showing a lower operating device provided on the vehicle body of the first aerial work vehicle; It is a perspective view which shows the state where the remote control was attached to the workbench. It is a perspective view which shows a remote control. It is a top view which shows the operation box with which the remote control was equipped. FIG. 3 is a functional block diagram of a safety device provided in the first aerial work platform; FIG. 4 is a schematic diagram showing an example of the operating speed of the boom in the first aerial work platform; FIG. 3 is a schematic diagram showing an example of an allowable working range in the first aerial work vehicle; FIG. 4 is a side view of the second aerial work vehicle according to the present embodiment; It is a flowchart which shows the outline|summary of the temporary support construction method which concerns on this embodiment. FIG. 4 is a diagram showing a state in which the work platform of the first aerial work vehicle is positioned near the ground; It is the 1st figure which shows the middle of assembling a temporary support apparatus. It is the 2nd figure which shows the middle of assembling a temporary support apparatus. It is a figure which shows the state which the temporary supporting tool rock|swung to the vertical position. It is a figure which shows the state which the temporary supporting tool rocked|swung to the inclined position. FIG. 4 is a diagram showing a state where the work platform of the first aerial work vehicle is positioned near the ground together with the temporary support device; It is a figure which shows the state which the temporary support apparatus moved to the vicinity of the electric wire. FIG. 10 is a diagram showing a state in which the work platform of the second vehicle for aerial work has moved to the vicinity of the work platform of the first vehicle for aerial work; It is a figure which shows the state which a temporary support apparatus moves by operation of a remote control. It is a figure which shows the state in which a temporary support apparatus reaches|attains an electric wire by operation of a remote control. It is a figure which shows the operation|work which makes a temporary support apparatus temporarily support an electric wire. It is a figure which shows the state which the temporary support apparatus which temporarily supported the electric wire moves by operation of a remote control. It is a figure which shows the state which the temporary support apparatus is temporarily supporting the electric wire. FIG. 10 is a diagram showing a state in which the work platform of the second vehicle for high lift work has moved to the vicinity of the work platform of the first vehicle for high lift work that temporarily supports the electric wire by the temporary support device; It is a figure which shows the state which the electric wire temporarily supported by the temporary support apparatus reaches|attains a utility pole by operation of a remote control.

Preferred embodiments of the present invention will be described below with reference to the drawings. A first aerial work vehicle 1 according to the present embodiment is shown in FIG. 1. First, the overall configuration of the first aerial work vehicle 1 will be described with reference to this figure.

As shown in FIG. 1, the first aerial work vehicle 1 has a driving cab 7 in the front part of the vehicle body 2, and travels by a pair of left and right front wheels 5f and rear wheels 5r disposed in front and rear of the vehicle body 2. It is configured based on a possible truck vehicle. The vehicle body 2 includes a chassis frame having front wheels 5f and rear wheels 5r and a sub-frame mounted on the chassis frame.

Jack devices are provided on the front, back, left and right of the vehicle body 2 for lifting and supporting the vehicle body 2 during high-place work. The jack device includes a pair of left and right front jacks 10f arranged behind the front wheels 5f and a pair of left and right rear jacks 10r arranged behind the rear wheels 5r. Each of the jacks 10f and 10r drives a jack cylinder 11 provided therein to extend downward to lift and support the vehicle body 2, thereby stabilizing the vehicle as a whole. A rear end portion of the vehicle body 2 is provided with a lower operation device 27 for operating the jacks 10f and 10r, a boom 30 to be described later, and the like.

A swivel base 20 that is driven by a swivel motor 24 and configured to be horizontally swivelable about a vertical axis is provided in the vehicle body 2 behind the cab 7 . A base end of a boom 30 is attached to a post 21 extending upward from the swivel base 20 via a foot pin 22 so as to be vertically swingable (raising and lowering). Tool boxes 26 for storing work tools and work equipment are provided on the left and right sides of the mounting area of the vehicle body 2 .

The boom 30 has a configuration in which a base end boom 30a, an intermediate boom 30b, and a tip boom 30c are telescopically combined in order from the swivel base 20 side. , the boom 30 can be telescopically moved in the axial direction (longitudinal direction). A hoisting cylinder 23 is straddled between the base end boom 30a and the strut 21, and the boom 30 as a whole is hoisted and lowered in the upper and lower planes (vertical plane) by extending and contracting the hoisting cylinder 23. be able to.

As shown in FIGS. 2A and 2B, a vertical post 32 is attached to the tip of the tip boom 30c by a swing pin 33 so as to be vertically swingable. The vertical post 32 is supported by an upper leveling cylinder (not shown) straddled between the tip of the tip boom 30c and a lower leveling cylinder 25 straddled between the base end boom 30a and the post 21. , swing control (leveling control) is performed so that the vertical posture is always maintained regardless of the hoisting angle of the boom 30 .

A workbench bracket 38 is attached to the upper part of the vertical post 32 so as to be able to rotate (horizontally turnable) with respect to the vertical post 32, and the upper part of the workbench bracket 38 is opened via a workbench lifting device 36. A box-shaped workbench 40 is attached. The top of vertical post 32 and workbench bracket 38 are wrapped around by cover 35 . An oscillating motor 34 is provided inside the cover 35. By driving the oscillating motor 34, the work table bracket 38 and the work table 40 are rotated through a rotation transmission mechanism including a worm gear and a wheel gear (not shown). It is configured so that it can be horizontally swiveled (swinged) around the vertical post 32 .

As described above, the vertical post 32 is leveled so that the vertical posture is always maintained, so that the floor surface of the work table 40 is always kept horizontal regardless of the hoisting angle of the boom 30. there is The work table lifting device 36 is configured to have a lifting cylinder (not shown), and is configured to move the work table 40 up and down with respect to the work table bracket 38 by driving the lifting cylinder. there is

The workbench 40 is provided with an upper operation device 45 having various operation means such as operation levers and switches to be operated by a worker on the workbench 40 . Therefore, by operating the upper operation device 45, a worker on the workbench 40 can turn the swivel base 20 (rotating operation of the turning motor 24) and raise and lower the boom 30 (extend and contract operation of the raising and lowering cylinder 23). , expansion and contraction of the boom 30 (extension and contraction of the telescopic cylinder 31), swinging of the workbench 40 (rotating of the swinging motor 34), and the like.

Actuating mechanisms of aerial work equipment and the like (the above-described swivel base 20, boom 30, workbench 40, etc.) provided on the vehicle body 2 receive operation signals from the upper operation device 45 and the lower operation device 27, and operate the jack cylinder. 11. A controller that controls the swing motor 24, the telescopic cylinder 31, the hoisting cylinder 23, the swing motor 34, and the lifting cylinder (not shown) of the work table lifting device 36 (hereinafter collectively referred to as "hydraulic actuator 55"). 200 (see FIG. 9), a hydraulic unit 50 (see FIG. 9) that supplies hydraulic oil to operate the hydraulic actuator 55 described above, and an engine E of the vehicle body 2 for driving aerial work equipment and the like. (See FIG. 9).

As shown in FIG. 9, the hydraulic unit 50 includes a hydraulic pump 51, a power take-off mechanism 52 for driving the hydraulic pump 51, and a supply direction and amount of hydraulic oil supplied from the hydraulic pump 51 to each hydraulic actuator 55. and a control valve 53 for controlling the The power take-off mechanism 52 is incorporated in a transmission (not shown) that shifts the power of the engine E of the vehicle body 2 and transmits it to the rear wheels 5r. When a PTO control lever (not shown) provided in the driving cab 7 is operated from the OFF position to the ON position, the power take-off mechanism 52 switches the driving destination of the engine E from the rear wheels 5r to the hydraulic pump 51. , the power of the engine E is used to drive the hydraulic pump 51 . The control valve 53 supplies hydraulic fluid from the hydraulic pump 51 to each hydraulic actuator 55 in response to a control signal from the controller 200 (a control signal corresponding to the operation signals from the upper operation device 45 and the lower operation device 27). It controls the direction and amount of feed, and controls the direction and speed of actuation of each hydraulic actuator 55 (controls the direction and speed of actuation of jacking equipment and aerial work equipment).

Although not shown in detail, the hydraulic unit 50 is provided with a second hydraulic pump (not shown) driven by an electric motor (not shown). The electric motor is rotationally driven by electric power supplied from the mounting section battery 59 via an inverter. In place of the (first) hydraulic pump 51 driven by the engine E of the vehicle body 2 and the power take-off mechanism 52 , the hydraulic unit 50 drives a second hydraulic pump to each hydraulic actuator 55 in response to a control signal from the controller 200 . It is configured to be able to control the supply direction and supply amount of the hydraulic oil supplied to the hydraulic actuator 55 and to control the operating direction and operating speed of each hydraulic actuator 55 .

Also, as shown in FIG. 2A, a lifting device 70 is provided at the upper end of the vertical post 32 . The hoisting device 70 includes a revolving body 71 that is horizontally rotatable on the upper end of the vertical post 32, a sub-boom support member 72 that is attached to the upper part of the revolving body 71 so as to be able to swing vertically, and a sub-boom support member 72. and a long sub-boom 74 detachably attached to the upper part of the. The sub-boom 74 is detached from the sub-boom support member 72 and attached to the base end boom 30a as shown in FIG. 1, for example, when the first aerial work vehicle 1 is moved.

The revolving body 71 includes a revolving member 71a rotatably attached to the upper end of the vertical post 32 and a cover 71b covering the revolving member 71a. The turning member 71a is provided so as to be able to turn coaxially with the turning axis A of the workbench 40 (workbench bracket 38) by driving a winch turning motor (not shown) provided therein. A horizontally extending rocking pin 72a is provided on the upper portion of the turning member 71a, and a sub-boom support member 72 is attached so as to be vertically rockable about the rocking pin 72a.

The sub-boom support member 72 is vertically swung around a swing pin 72a with respect to the swivel member 71a by driving a sub-boom hoisting cylinder (not shown) provided inside the cover 71b of the swivel body 71. configured as possible. A sub-boom mounting hole (not shown) extending in a direction orthogonal to the swing pin 72a is formed in the upper portion of the sub-boom support member 72. A sub-boom 74 is inserted into this sub-boom mounting hole and is supported by a fixing pin 77. It is fixedly held by the member 72 . The length of sub-boom 74 extending from sub-boom support member 72 toward workbench 40 in FIG.

At the upper end of the sub-boom support member 72, there is a winch mechanism 75 that feeds out and winds up a winch rope (not shown) that is wound around a sheave member 74a (guide pulley) provided at the tip of the sub-boom 74. is provided. The winch mechanism 75 is configured to drive a built-in winch drive motor (not shown) to extend and wind up the winch rope.

As for the winch swing motor, sub-boom hoisting cylinder, and winch drive motor (not shown), the operation of the control valve 53 is controlled by the controller 200 that receives the operation signal from the upper operation device 45, similarly to the hydraulic actuator 55 described above. be. The control valve 53 controls the supply direction and amount of hydraulic oil supplied from the hydraulic pump 51 (or the second hydraulic pump described above), thereby controlling the winch swing motor, the sub-boom hoisting cylinder, and the winch drive motor. Actuation direction and actuation speed are controlled. Below, the hydraulic actuator 55 shall also include a winch turning motor, a sub-boom hoisting cylinder, and a winch drive motor.

Next, the temporary support device 100 according to this embodiment will be described with reference to FIG. The temporary support device 100 includes the lifting device 70 described above and a temporary support tool 110 detachably attached to the lifting device 70 .

The temporary support 110 is attached to the tip of the sub-boom 74 instead of the sheave member 74a described above. The temporary support 110 includes a plurality of wire supports 120 for temporarily supporting wires laid between utility poles, support arms (temporary arms) 130 to which these wire supports 120 are attached, and temporary supports from the laid wires. It comprises a load detector 140 for detecting horizontal and vertical loads acting on the tool 110 and a bracket 150 for attaching the load detector 140 to the tip of the sub-boom 74 .

The support arm 130 is made of a long bar-shaped hollow member having a substantially square cross section, and three wire support portions 120 are attached to the arm 130 at predetermined intervals in the longitudinal direction thereof. The wire support portion 120 includes an attachment portion 121 attached to the support arm 130 using a tightening bolt, a resin insulator member 122 fixed to the attachment portion 121, and a tip portion of the insulator member 122. and a support portion 123 . The support portion 123 has four roller members 124 that face each other in the vertical and horizontal directions, and is configured to support an electric wire by inserting it into a rectangular gap formed by these four roller members 124 . It is Further, the roller member 124 positioned above the support portion 123 can be opened and closed by swinging. By swinging and opening the roller member 124 on the upper portion, the electric wire is inserted into the above-mentioned rectangular gap. can do. Further, by closing the roller member 124 that has been released for swinging, the electric wire can be inserted into the above-described rectangular gap and supported. A fixing member 131 for connecting the support arm 130 to the load detection section 140 is attached to the support arm 130 .

The load detection unit 140 includes a horizontal load detector 141 and a vertical load detector 1, as shown in FIG.
42. The horizontal load detector 141 detects a horizontal load acting on the temporary support 110 (horizontal load). The vertical load detector 142 detects a vertical load acting on the temporary support 110 (vertical load). Each of the load detectors 141 and 142 is composed of, for example, a load cell having a strain gauge, and outputs an electric signal (detection signal) in which the change in electric resistance caused by the external load is replaced with the change in voltage.

The bracket 150 has a bracket base portion 151 that is detachably attached to the tip of the sub-boom 74, and a bracket connection portion 155 that is swingably connected to the bracket base portion 151 and to which the load detection portion 140 is detachably attached. configured as The swinging of the bracket connecting portion 155 moves the temporary support 110 to a parallel position (see FIG. 3 ) where the support arm 130 is substantially parallel to the sub-boom 74 and a position where the support arm 130 is substantially perpendicular to the sub-boom 74 . vertical position (see FIG. 17). A first fixing hole 156 , a second fixing hole 157 and a third fixing hole 158 are formed in the side portion of the bracket connecting portion 155 . A fixing pin 159 can be inserted through each of the fixing holes 156 to 158 .

As shown in FIG. 3, when the temporary support 110 is pivotally displaced to the parallel position, the first fixing hole 156 is aligned with the base side fixing hole (not shown) formed in the side portion of the bracket base portion 151. It's like By inserting the fixing pin 159 into the aligned first fixing hole 156 and the base side fixing hole, the temporary support 110 is fixed in a parallel position. As shown in FIG. 18 , when the temporary support 110 is swung to an inclined position with respect to the sub-boom 74 , the second fixing holes 157 are aligned with the base-side fixing holes of the bracket base portion 151 . there is The temporary support 110 is fixed at the inclined position by inserting the fixing pin 159 into the second fixing hole 157 and the base-side fixing hole that are aligned with each other. As shown in FIG. 17, when the temporary support 110 is pivotally displaced to the vertical position, the third fixing hole 158 is aligned with the base-side fixing hole of the bracket base portion 151 . The temporary support 110 is fixed in the vertical position by inserting the fixing pin 159 through the aligned third fixing hole 158 and the base side fixing hole.

Next, the upper operating device 45 according to this embodiment will be described with reference to FIG. The upper operation device 45 includes a box-shaped operation box 45a attached to the workbench 40, a joystick JS, various operation levers LV1 to LV6, and various switches SW1 to SW11. Note that FIG. 4 shows a portion of the upper portion of the operation box 45a. On the upper side of the operation box 45a near the center of the workbench 40, in order from the right side of FIG. A sub-boom turning operation lever LV4, a lifting operation lever LV5, and an attachment switching operation lever LV6 are provided.

The joystick JS is an operating device for turning the swivel base 20 , raising and lowering the boom 30 , and extending and retracting the boom 30 . The swing operation lever LV1 is an operation lever for swinging the workbench 40 . The winch operation lever LV2 is an operation lever for extending the winch mechanism 75 and winding the winch mechanism 75 . The sub-boom swing operation lever LV3 is an operation lever for causing the sub-boom 74 to swing. The sub-boom turning operation lever LV4 is an operation lever for turning the turning member 71a. The elevation operation lever LV5 is an operation lever for raising and lowering the workbench 40 . The attachment switching operation lever LV6 is an operation lever for switching various attachments (not shown).

On the upper side of the operation box 45a near the outer periphery of the workbench 40, there are, in order from the right side of FIG.
, an engine switch SW4, an accelerator switch SW5, an automatic storage switch SW6, a horizontal/vertical operation switch SW7, an interference prevention function release switch SW8, and a mode changeover switch SW9. In addition, a lighting switch SW10 and a battery check switch SW11 are provided in order from the right side of FIG.

The operation stop switch SW1 is an operation switch for stopping the operation of the aerial work equipment (swivel base 20, boom 30, work table 40, etc.). The operation stop switch SW1 is configured using a push-pull type button switch or the like, and is pushed to stop the operation of the aerial work equipment, etc., and pulled to release the stopped state of the aerial work equipment, etc. It is possible. An operation stop lamp LP1 is provided between the operation stop switch SW1 and the power switch SW2 in the upper portion of the operation box 45a. When the operation stop switch SW1 is pushed to stop the operation of the aerial work equipment or the like, the operation stop lamp LP1 is turned on.

The power switch SW2 is an operation switch for turning on/off the power of the upper operation device 45 . The drive selector switch SW3 is driven by a (first) hydraulic pump 51 driven by the engine E of the vehicle body 2 and a power take-off mechanism 52, and by an electric motor (not shown). It is an operation switch for switching to a second hydraulic pump (not shown). The engine switch SW4 is an operation switch for starting or stopping the engine E. The accelerator switch SW5 is an operation switch for switching between an automatic mode in which the rotation speed of the engine E is automatically controlled to increase or decrease, and a low speed mode in which the rotation speed of the engine E is controlled to a constant low rotation speed.

The automatic retraction switch SW6 is an operation switch for causing the controller 200 to perform automatic retraction control for retracting the boom 30 to a predetermined retraction position on the vehicle body 2 . The horizontal/vertical operation switch SW7 is an operation switch for causing the controller 200 to perform horizontal/vertical operation control for linearly moving the workbench 40 in the horizontal direction or the vertical direction. The interference prevention function cancellation switch SW8 is an operation switch for temporarily canceling the interference prevention function. Note that the interference prevention function is a function of setting an interference prevention regulation area in which movement of the workbench 40 is regulated in order to prevent contact with an obstacle or the like. The power switch SW2, the drive changeover switch SW3, the engine switch SW4, the accelerator switch SW5, the automatic retraction switch SW6, the horizontal/vertical operation switch SW7, and the interference prevention function release switch SW8 are configured using toggle switches or the like.

The mode changeover switch SW9 is an operation switch for switching between a high altitude mode and a temporary support mode. The mode changeover switch SW9 is configured using a toggle switch or the like, and can be switched in order from the high altitude mode to the temporary support mode, the high altitude mode, the temporary support mode, . . . The high altitude mode is a control mode in which high altitude work and the like can be performed. The temporary support mode is a control mode in which the electric wire can be temporarily supported using the temporary support device 100 .

Further, by pressing and holding the mode switching switch SW9 in the temporary support mode, the temporary support mode can be switched to the pre-use inspection mode. Furthermore, by long-pressing the mode switching switch SW9 in the pre-use inspection mode, the pre-use inspection mode can be switched to the temporary support mode. The pre-use inspection mode is a control mode for performing pre-use inspection in the temporary support mode. Note that the mode changeover switch SW9 is not limited to a toggle switch, and may be configured using a push button switch, a rotary switch, or the like.

The illumination switch SW10 is an operation switch for turning on/off an illumination lamp (not shown) that illuminates the upper portion of the upper operation device 45 . The battery check switch SW11 is an operation switch for turning on/off the battery check lamp LP2. The illumination switch SW10 and the battery check switch SW11 are configured using toggle switches or the like. A battery check lamp LP2 is provided beside the battery check switch SW11 in the upper portion of the operation box 45a (to the left in FIG. 4). The battery check lamp LP2 lights and displays the remaining amount of the upper battery (not shown) provided on the workbench 40 in two stages by lighting operation of the battery check switch SW11. In addition, along with the battery check lamp LP2, a load factor display lamp LP3, a battery unit remaining amount display lamp LP4, and a winding A mode indicator lamp LP5 and a temporary support mode indicator lamp LP6 are provided.

When the high altitude mode is switched to the temporary support mode by pressing the mode switch SW9, the temporary support mode display lamp LP6 is lit. When the temporary support mode is switched to the high altitude mode by pressing the mode switch SW9, the temporary support mode display lamp LP6 is extinguished. Further, when the temporary support mode is switched to the pre-use inspection mode by pressing the mode switch SW9 for a long time, the temporary support mode display lamp LP6 blinks.

Next, the lower operating device 27 according to this embodiment will be described with reference to FIG. The lower operating device 27 includes a box-shaped operation box 27a attached to the rear end of the vehicle body 2, a monitor (display) MT, and various switches SW21 to SW31. Note that FIG. 5 shows a portion of the rear portion of the operation box 27a. A monitor MT is provided at the center of the rear portion of the lower operating device 27 . The monitor MT displays the operating state of the boom 30, the installation state of the jacks 10f and 10r, and the like.

On the rear left side of the operation box 27a, an extension switch SW21, a rotation switch SW22, and an up-and-down switch SW23 are provided in order from the left side. The telescoping switch SW21 is an operation switch for telescoping the boom 30 . The turning switch SW22 is an operation switch for causing the turning base 20 to turn. The hoisting switch SW23 is an operation switch for raising and lowering the boom 30 .

On the rear left side of the operation box 27a, below the extension switch SW21, the turning switch SW22, and the hoisting switch SW23, there are, in order from the left side, a lower priority switch SW24, an automatic retraction switch SW25, and a display switching/before-work-inspection switch SW26. be provided. The lower priority switch SW24 is an operation switch for giving priority to the operation of the lower operating device 27 over the operation of the upper operating device 45 (invalidating the upper operating device 45 and validating the lower operating device 27). The automatic storage switch SW25 is an operation switch for causing the controller 200 to perform the aforementioned automatic storage control. The display switching/pre-work inspection switch SW26 switches between a display switching mode for switching the display of the monitor MT and a pre-work inspection mode for performing pre-work inspection of each sensor, control valve 53, controller 200, and the like. It is an operation switch for

An accelerator switch SW27, an engine switch SW28, and a battery switch SW29 are provided in this order from the left side on the rear right side of the operation box 27a. The accelerator switch SW27 is an operation switch for switching between an automatic mode in which the rotation speed of the engine E is automatically controlled to increase or decrease, and a low speed mode in which the rotation speed of the engine E is controlled to a constant low rotation speed. The engine switch SW28 is an operation switch for starting or stopping the engine E. The battery switch SW29 is an operation switch for switching the battery unit (mounting section battery 59) to an operation mode or a stop/charge mode.

Below the accelerator switch SW27, the engine switch SW28, and the battery switch SW29 on the rear right side of the operation box 27a, a normal charge switch SW30 and an equalization charge switch SW31 are provided in order from the left side. The normal charging switch SW30 is an operation switch for turning on/off the normal charging mode of the battery unit (mounting unit battery 59). The equalization charge switch SW31 is an operation switch for turning on/off the equalization charge mode of the battery unit (mounting unit battery 59). Various switches SW21 to SW31 are configured using toggle switches or the like.

In addition, as shown in FIG. 6, a remote control device 300 is detachably attached to the upper edge of the workbench 40 of the first aerial work vehicle 1. As shown in FIG. By removing the remote control device 300 from the workbench 40 and operating it, the operator can turn the turntable 20 (rotate the turn motor 24) and raise and lower the boom 30 even at a position away from the workbench 40. (Extending and retracting operation of the hoisting cylinder 23) and extending and retracting operation of the boom 30 (extending and retracting operation of the telescopic cylinder 31) (hereinafter, these three operating operations may be collectively referred to as "boom operating operation"). It can be carried out. Note that the controller 200 receives an operation signal from the remote control device 300 and controls the operations of the turning motor 24 , telescopic cylinder 31 , and hoisting cylinder 23 . The control valve 53 is controlled by the hydraulic pump 51 (or the aforementioned second hydraulic pump) in response to a control signal from the controller 200 (a control signal corresponding to an operation signal from the remote control device 300). 31. Controls the supply direction and amount of hydraulic oil supplied to the hoisting cylinder 23, and controls the operating direction and operating speed of the swing motor 24, telescopic cylinder 31, and hoisting cylinder 23 (operating direction and operating speed of the boom 30). control).

Next, a remote control device 300 according to the present embodiment will be described with additional reference to FIGS. 7 and 8. FIG. The remote control device 300 includes a box-shaped operation box 310, various switches SW41 to SW46, a mounting member 320 that is coupled to the operation box 310 and can be attached to the upper edge of the workbench 40, and a side portion of the operation box 310. and a protective member 330 that protects the Also, the remote control device 300 is electrically connected to the controller 200 and the like via a cable 301 . One end of the cable 301 is electrically connected to the operation box 310 , and the other end of the cable 301 is electrically connected to an input/output port (not shown) provided on the upper operation device 45 of the work table 40 . connected The length of the cable 301 is set so that the remote control device 300 removed from the upper edge of the workbench 40 can be moved to a position away from the workbench 40 (outside the workbench 40). be.

A power switch SW41 and an operation stop switch SW42 are provided in order from the left side in FIG. The power switch SW41 is an operation switch for turning on/off the power of the remote control device 300 . The power switch SW41 is configured using a toggle switch or the like. A power lamp LP41 is provided near the power switch SW41 on the upper portion of the operation box 310. As shown in FIG. When the remote control device 300 is turned on by operating the power switch SW41, the power lamp LP41 lights up.

The operation stop switch SW42 is an operation switch for stopping the operation of the aerial work equipment (swivel base 20, boom 30, workbench 40, etc.). The operation stop switch SW42 is configured using a push-pull type button switch or the like, and is pushed to stop the operation of the aerial work equipment, etc., and pulled to release the stopped state of the aerial work equipment, etc. It is possible. An operation stop lamp LP42 is provided in the vicinity of the operation stop switch SW42 in the upper portion of the operation box 310. As shown in FIG. When the operation stop switch SW42 is pressed to stop the operation of the aerial work equipment, the operation stop lamp LP42 is lit. A load factor display lamp LP43 is provided in the upper portion of the operation box 310 between the power switch SW41 and the operation stop switch SW42.

A boom operation switch SW43, telescoping switch SW44, turning switch SW45, and hoisting switch SW46 are provided in this order from the left side in FIG. The boom operation switch SW43 is an operation switch for validating the operations of the telescopic switch SW44, the turning switch SW45, and the hoisting switch SW46. The telescoping switch SW44 is an operation switch for telescoping the boom 30 . The turning switch SW45 is an operation switch for causing the turning base 20 to turn. The hoisting switch SW46 is an operation switch for raising and lowering the boom 30 . The boom operation switch SW43, telescopic switch SW44, turning switch SW45, and hoisting switch SW46 are configured using toggle switches or the like.

As shown in FIG. 7, the mounting member 320 is formed into the illustrated shape by cutting, bending, or the like using a metal plate material. The mounting member 320 includes a coupling portion 321 formed in the middle portion of the mounting member 320, a locking portion 322 formed in the upper portion of the mounting member 320, and a contact portion 323 formed in the lower portion of the mounting member 320. have. The connecting portion 321 is formed in a plate shape matching the outer peripheral shape of the operation box 310, and is connected to the lower portion of the operation box 310 using a connecting member (not shown) such as a screw. The locking portion 322 is formed in a gate-shaped cross-section that matches the shape of the upper edge of the workbench 40 , and is configured to be able to be locked to the upper edge of the workbench 40 . The abutting portion 323 is formed in a rib-like shape extending in a substantially horizontal direction, and abuts against the inner surface of the work table 40 while the engaging portion 322 is engaged with the upper edge portion of the work table 40 . . The attachment member 320 , that is, the remote control device 300 , is coupled to the operation box 310 in a state where the locking portion 322 is locked to the upper edge of the work table 40 and the contact portion 323 is in contact with the inner surface of the work table 40 . is detachably attached to the upper edge of the workbench 40 .

As shown in FIG. 7, the protective member 330 is formed into the illustrated shape by cutting, bending, or the like using a metal bar. The protective member 330 is joined to the attachment member 320 in the vicinity of the coupling portion 321 by welding or the like. Thereby, the protective member 330 is arranged near the side of the operation box 310 and protects the side portion of the operation box 310 so as to prevent contact with other members.

Next, a safety device (overturn prevention device) provided in the first aerial work vehicle 1 will be described with reference to FIGS. 9 to 11. FIG. The safety device according to this embodiment includes various sensors and a controller 200, as shown in FIG.

As shown in FIG. 9, the sensors include a boom hoisting angle detector 251, a boom length detector 252, a boom turning angle detector 253, an axial force detector 254, a winch turning angle detector 255, and a It consists of the jack extension detector 256, the horizontal load detector 141 and the vertical load detector 142 of the load detector 140, and the like. These detectors are electrically connected to the controller 200 , and detection information (detection signals) of the detectors 141 , 142 , 251 to 256 are input to the controller 200 .

The boom hoisting angle detector 251 is provided at the base end of the boom 30 and detects the hoisting angle of the boom 30 . The boom length detector 252 is provided inside the boom 30 and detects the length (extension amount) of the boom 30 . The boom turning angle detector 253 is provided on the vehicle body 2 and detects the turning angle of the boom 30 (swivel base 20). The axial force detector 254 is provided at the upper end of the hoisting cylinder 23 and detects the axial force (axial load) acting on the hoisting cylinder 23 . The winch turning angle detector 255 is provided on the vertical post 32 and detects the vertical post 32 (boom 3
0) is detected. The jack extension detector 256 is provided on the vehicle body 2 and detects the extension of the jacks 10f and 10r.

The controller 200 has an operation control section 201 , a moment calculation section 202 , a position calculation section 203 , a boom operation regulation section 204 , a mode determination section 205 and an abnormality determination section 206 . The units 201 to 206 of the controller 200 are functional representations of hardware such as CPU, ROM, RAM, and electronic circuits provided in the controller 200 and software such as control programs. .

The operation control unit 201 electromagnetically drives the control valve 53 based on an operation signal from the upper operation device 45, the lower operation device 27, or the remote operation device 300, and operates each hydraulic actuator 55 to operate the jack 10f. , 10r, the boom 30, the workbench 40, the sub-boom 74, the winch mechanism 75, and the like. When the same boom actuation operation as the boom actuation operation of the lower operation device 27 is performed by the remote control device 300 , the actuation control unit 201 causes the boom 30 to hoist, extend and retract in accordance with the boom actuation operation of the remote control device 300 . The telescoping operation of the hoisting cylinder 23 and the telescoping cylinder 31 are performed so that the speed at which the boom 30 moves and turns is lower than the speed at which the boom 30 moves, stretches, and turns according to the boom operation operation of the lower operating device 27. It controls the expansion/contraction operation and the rotation operation of the turning motor 24 .

FIG. 10 shows a comparative example of the operating speed of the boom 30 in the first aerial work vehicle 1 . Note that the operating speed of the boom 30 is a general term for the speed at which the boom 30 hoists, stretches, and turns. The vertical axis of the graph in FIG. 10 indicates the height of the workbench 40 (bottom), and the horizontal axis of the graph in FIG. The operating speed B1 of the boom 30 in response to the boom operating operation of the lower operating device 27 (and the operating speed of the boom 30 in response to the boom operating operation of the upper operating device 45 in the high altitude mode) B1 constant regardless. The operating speed B2 of the boom 30 according to the boom operating operation of the remote control device 300 is constant regardless of the height of the work table 40, but the operating speed of the boom 30 corresponding to the boom operating operation of the lower operating device 27 ( and the operating speed of the boom 30 corresponding to the boom operating operation of the upper operating device 45 in the high place mode) B1. The operating speed B3 of the boom 30 corresponding to the boom operating operation of the upper operating device 45 in the temporary support mode is lower when the height of the work table 40 is high than when the height of the work table 40 is small. ing. The operating speed B2 of the boom 30 corresponding to the boom operating operation of the remote control device 300 is lower than the operating speed B3 of the boom 30 corresponding to the boom operating operation of the upper operating device 45 in the temporary support mode.

The moment calculation unit 202 detects the axial force of the hoisting cylinder 23 detected by the axial force detector 254, the hoisting angle of the boom 30 detected by the boom hoisting angle detector 251, and other detected information such as the foot pin 22 of the boom 30. Calculate the moment acting around (around the hoisting axis). This moment is obtained by converting the axial force acting on the hoisting cylinder 23 into a moment acting around the foot pin 22 . That is, this moment includes the weight of the boom 30 and the workbench 40, the load applied to the workbench 40, the lifting load when the lifting device 70 is used, the external load when the temporary support device 100 is used, and the like. The moment acting on the vehicle body 2 by is calculated based on the axial force acting on the hoisting cylinder 23 . Note that the moment calculator 202 detects the horizontal load acting on the temporary support 110 detected by the horizontal load detector 141, the vertical load acting on the temporary support 110 detected by the vertical load detector 142, and the detection of the winch turning angle. Based on the detected information such as the turning angle of the sub-boom 74 detected by the device 255, it is possible to calculate the moment corrected for the influence of the external load when the temporary support device 100 is used.

The position calculator 203 calculates the hoisting angle of the boom 30 detected by the boom hoisting angle detector 251, the length of the boom 30 detected by the boom length detector 252, and the boom 30 detected by the boom turning angle detector 253. The position of the bottom of the workbench 40 (or the tip of the boom 30) relative to the vehicle body 2 is calculated based on the detected information such as the turning angle.

The boom operation restricting section 204 compares the moment calculated by the moment calculating section 202 with a preset restricted moment. When the moment calculated by the moment calculating unit 202 reaches the regulated moment, the boom operation restricting unit 204 restricts the operation of the boom 30 irrespective of the operation signals from the operation devices 27 , 45 , 300 . It restricts the movement in the direction in which the overturning moment acting on the body increases (lofting movement, extension movement, turning movement in a predetermined direction). Note that the regulated moment is set according to the turning angle of the boom 30, the extension amount of the jacks 10f and 10r, and the like.

Note that when a switching operation signal for switching to the temporary support mode is input from the mode switching switch SW9 of the upper operating device 45, the boom operation restricting section 204 then detects the horizontal load detector 141 and the vertical load detector of the load detecting section 140. Until the horizontal load and vertical load detected by 142 change by exceeding a predetermined amount of change, the position of the workbench 40 (bottom) calculated by the position calculation unit 203 and the preset allowable work range are changed. compare. When the position of the workbench 40 calculated by the position calculation unit 203 reaches the outer edge of the allowable work range, the boom operation control unit 204 regulates the boom regardless of the operation signals from the operation devices 27, 45, and 300. Among the operations of 30, the operation in the direction in which the workbench 40 moves outside the allowable work range is restricted. The predetermined amount of change in the horizontal load and the vertical load is, for example, the amount of change in the horizontal load and the vertical load acting on the temporary support 110 when temporarily supporting the electric wire.

FIG. 11 shows an allowable work range S in the vertical plane as an example of the allowable work range. In FIG. 11, the vertical axis of the graph showing the allowable working range S indicates the height of the workbench 40 (bottom), and the horizontal axis of the graph showing the allowable working range S indicates the turning center of the boom 30 (swivel base 20). The working radius centered on C is shown. It should be noted that the allowable work range S is set according to the extension amount of the jacks 10f and 10r.

When a switching operation signal for switching to the temporary support mode is input from the mode switching switch SW9 of the upper operating device 45, the mode determination section 205 receives detection signals from the horizontal load detector 141 and the vertical load detector 142 of the load detecting section 140. The workbench 40 for which the extension amount of the jacks 10f and 10r input and detected by the jack extension amount detector 256 is larger than the preset regulation extension amount and is calculated by the position calculation unit 203 It is determined whether or not the position of the (bottom part) is within a preset allowable working range behind the vehicle body 2 . Mode determination unit 205 outputs a normal notification signal to upper operating device 45 when the determination is YES. If the determination is NO, that is, in the temporary support mode, the mode determination unit 205 determines whether detection signals are input from the horizontal load detector 141 and the vertical load detector 142, or whether the amount of protrusion of the jacks 10f and 10r is restricted. or the work table 40 is outside the allowable work range, an abnormality notification signal is output to the upper operating device 45, and an operation stop signal for stopping the operation of each hydraulic actuator 55 is sent to the operation control unit 201. Output.

When a switching operation signal for switching to the pre-use inspection mode is input from the mode switching switch SW9 of the upper operating device 45, the abnormality determining unit 206 receives input from the horizontal load detector 141 and the vertical load detector 142 of the load detecting unit 140. It is determined whether or not the horizontal load and the vertical load detected by the horizontal load detector 141 and the vertical load detector 142 change due to the swing displacement of the temporary support 110 based on the detection signals and the like. The abnormality determination unit 206 outputs a normal notification signal to the upper operating device 45 when the determination is YES. When the determination is NO, that is, when the horizontal load and the vertical load detected by the horizontal load detector 141 and the vertical load detector 142 do not change in the pre-use inspection mode, the abnormality determination unit 206 outputs an abnormality notification signal to the upper part. Output to the operation device 45 . Further, the abnormality determination section 206 may output an operation stop signal for stopping the operation of each hydraulic actuator 55 to the operation control section 201 .

Next, a second aerial work vehicle 501 according to this embodiment will be described with reference to FIG. Like the first aerial work vehicle 1, the second aerial work vehicle 501 has a driving cab 507 in the front part of the vehicle body 502, and a pair of left and right front wheels 505f and It is configured based on a track vehicle that can be driven by rear wheels 505r.

Jack devices for lifting and supporting the vehicle body 502 during high-place work are provided on the front, rear, left, and right of the vehicle body 502 . The jack device is configured to have a pair of left and right front jacks 510f and a pair of left and right rear jacks 510r, similarly to the first aerial work vehicle 1 . Each of the jacks 510f and 510r drives a jack cylinder 511 provided therein to extend downward, thereby lifting and supporting the vehicle body 502, thereby stabilizing the entire vehicle. A rear end portion of the vehicle body 502 is provided with a lower operation device 527 for operating the jacks 510f and 510r, the boom 530, and the like, similarly to the first aerial work vehicle 1. As shown in FIG.

A swivel base 520 driven by a swivel motor 524 is provided in the vehicle body 502 behind the driving cab 507 so as to be horizontally swivelable about a vertical axis. A base end of a boom 530 is attached to a post 521 extending upward from the swivel base 520 via a foot pin 522 so as to be vertically swingable (flexible). Tool boxes 526 for storing work tools and work equipment are provided on the left and right sides of the mounting area of the vehicle body 502 .

The boom 530 has a configuration in which a base end boom 530a, an intermediate boom 530b and a tip boom 530c are telescopically combined in order from the swivel base 520 side. , the boom 530 can be telescopically moved in the axial direction (longitudinal direction). In addition, a hoisting cylinder 523 is straddled between the base end boom 530a and the strut 521, and by extending and contracting the hoisting cylinder 523, the entire boom 530 is hoisted within the upper and lower planes (vertical plane). be able to.

As shown in FIG. 23, a vertical post 532 is attached to the tip of the tip boom 530c so as to be vertically swingable. As in the first aerial work vehicle 1 , the vertical post 532 is swing controlled (leveling controlled) so that the vertical posture is always maintained regardless of the hoisting angle of the boom 530 . A work table 540 is provided on the vertical post 532 so as to be rotatable (horizontally rotatable) with respect to the vertical post 532 in the same manner as the first aerial work vehicle 1 . As in the first aerial work vehicle 1, the workbench 540 can be horizontally turned (swinged) around the vertical post 532 by driving a swing motor (not shown). ing. Further, by driving an elevating cylinder (not shown) of the work table lifting device 536, the work table 540 can be moved up and down. As described above, the vertical post 532 is leveled so that the vertical posture is always maintained, so that the floor surface of the workbench 540 is always kept horizontal regardless of the hoisting angle of the boom 530. there is

The workbench 540 is provided with an upper operating device 545 as in the first aerial work vehicle 1 . By operating the upper operating device 545, a worker on the workbench 540 turns the swivel base 250 (rotating operation of the turning motor 524), raises and lowers the boom 530 (extends and retracts the raising and lowering cylinder 523), and operates the boom. It is possible to carry out various operating operations such as telescopic operation of the telescopic cylinder 531 (extension and retraction operation of the telescopic cylinder 531), swing operation of the work table 540 (rotational operation of the swing motor), and the like. As in the first aerial work vehicle 1, a controller (not shown) receives operation signals from the upper operation device 545 and the lower operation device 527, and controls the jack cylinder 511, turning motor 524, telescopic cylinder 531, It controls the operations of the cylinder 523, the swing motor, the lift cylinder (not shown), and the like.

Next, a temporary support construction method for temporarily supporting electric wires using the first vehicle for high lift work 1 and the second vehicle for high lift work 501 will be described with reference to FIGS. 13 to 28. FIG. As shown in FIG. 13, the temporary support construction method according to the present embodiment includes a preparation step ST1 for installing and inspecting the temporary support device 100 (temporary support tool 110) in the first aerial work vehicle 1, and a first A device moving step ST2 of moving the temporary support device 100 to the vicinity of the electric wire C (see FIG. 20) by operating the boom operation of the lower operating device 27 in the aerial work vehicle 1, and work of the second aerial work vehicle 501 A temporary support step ST3 for temporarily supporting the electric wire C on the temporary support device 100 by riding on the stand 540, and riding on the workbench 540 of the second aerial work vehicle 501 and temporarily supported by the temporary support device 100 The electric wire fixing step ST4 for fixing the electric wire C to the insulator G (see FIG. 28) provided on the electric pole D, and the boom operating operation of the lower operating device 27 in the first aerial work vehicle 1, the temporary support device 100 is fixed. It can be roughly divided into the device return step ST5 for returning to the ground.

In the following description, for ease of explanation, the vehicle body 2, swivel base 20, boom 30, work platform 40, and upper operating device 45 of the first aerial work vehicle 1 are referred to as the first vehicle body 2 and the first swing. The table 20, the first boom 30, the first workbench 40, and the first upper operating device 45 may be referred to. Similarly, the vehicle body 502 , swivel base 520 , boom 530 , work platform 540 and upper operating device 545 in the second aerial work vehicle 501 are replaced with the second vehicle body 502 , second swivel base 520 and second boom 530 . , a second workbench 540 and a second upper operating device 545 .

In the preparatory step ST1, first, as shown in FIG. 14, the first aerial work vehicle 1 is moved to a predetermined position near the utility pole D, and the first vehicle body 2 is lifted and supported by the jacks 10f and 10r. . Also, the second aerial work vehicle 501 is moved to a predetermined position near the electric pole D different from the first aerial work vehicle 1, and the second vehicle body 502 is lifted and supported by the jacks 510f and 510r. Next, the boom actuating operation of the lower operating device 27 in the first aerial work vehicle 1 is performed to operate the first boom 30 (swinging motion, hoisting motion, or telescopic motion) to move the first workbench 40. The first vehicle body 2 is moved rearward. At this time, the operator OP (see FIG. 20) on the ground moves the first boom 30 (first swivel base 20) with respect to the swing switch SW22 while operating the lower priority switch SW24 in the lower operating device 27. A turning operation operation, a hoisting operation operation of the first boom 30 with respect to the hoisting switch SW23, or an expansion and contraction operation operation of the first boom 30 with respect to the telescopic switch SW21 are performed.

Next, the operator OP turns on the power switch SW2 of the first upper operating device 45 to turn on the power of the first upper operating device 45 . Next, the operator OP performs a swing operation of the sub-boom 74 with respect to the sub-boom swing operation lever LV3 of the first upper operation device 45 so that the tip side faces the horizontal direction as shown in FIG. The sub-boom 74 is swung and displaced. Also, at this time, the operator OP attaches the bracket 150 (bracket base portion 151 ) of the temporary support device 100 to the distal end portion of the sub-boom 74 .

Next, the operator OP attaches the load detection portion 140 of the temporary support device 100 to the bracket connection portion 155 of the bracket 150 as shown in FIG. 16 . Next, the operator OP turns on a power switch (not shown) provided in the load detection unit 140 to turn on the temporary support device 100 . A power source for the temporary support device 100 is built in the load detection unit 140 using a lithium ion battery (not shown) or the like.

Next, the operator OP presses the operation stop switch SW1 of the first upper operating device 45, and the aerial work device (first swivel base 20, first boom 30, first (workbench 40, etc.) is stopped. Next, the operator OP pushes the mode changeover switch SW9 of the first upper operating device 45 only once, and then pulls the operation stop switch SW1 to turn off the aerial work equipment, etc. cancel the state in which the operation of is stopped. At this time, the mode switching switch SW9 outputs to the controller 200 a switching operation signal for switching from the high altitude mode to the temporary support mode.

When a switching operation signal for switching from the high altitude mode to the temporary support mode is input to the controller 200, the mode determination unit 205 of the controller 200 receives detection signals from the horizontal load detector 141 and the vertical load detector 142 of the load detection unit 140. The extension amount of the jacks 10f and 10r input and detected by the jack extension amount detector 256 is greater than the preset regulation extension amount, and the first value calculated by the position calculation unit 203. It is determined whether or not the position of the workbench 40 is within the allowable work range behind the first vehicle body 2 . If the determination is NO, the mode determination unit 205 outputs an abnormality notification signal to the first upper operating device 45 and outputs an operation stop signal for stopping the operation of each hydraulic actuator 55 to the operation control unit 201 . As a result, the operation stop lamp LP1 of the first upper operating device 45, the take-up mode display lamp LP5, and the temporary support mode display lamp LP6 alternately flash to inform the operator OP of the abnormality. be. The operation control unit 201 also performs control to stop the operation of each hydraulic actuator 55 . When the mode determination unit 205 outputs an abnormality notification signal, the operator OP presses the operation stop switch SW1 of the first upper operating device 45, and then presses the mode switching switch SW9. By performing a push operation, it is possible to return to the high altitude mode.

On the other hand, mode determination section 205 outputs a normal notification signal to first upper operating device 45 when the determination is YES. As a result, the temporary support mode display lamp LP6 of the first upper operating device 45 is lit, and the operator OP is informed that the temporary support mode has been switched. When the normal notification signal is output from the mode determination unit 205, it is possible to switch from the temporary support mode to the pre-use inspection mode.

In order to switch from the temporary support mode to the pre-use inspection mode, the operator OP long-presses the mode changeover switch SW9 of the first upper operating device 45 . At this time, the mode switching switch SW9 outputs a switching operation signal for switching from the temporary support mode to the pre-use inspection mode to the controller 200 . In addition, the temporary support mode display lamp LP6 of the first upper operating device 45 flashes to notify the operator OP that the mode has been switched to the pre-use inspection mode.

Next, the operator OP attaches the wire support portion 120 and the support arm 130 of the temporary support device 100 to the load detection portion 140 . As a result, the operation of attaching the temporary support 110 (that is, the temporary support device 100) to the first aerial work vehicle 1 is completed. At this time, as shown in FIG. 3, the temporary support 110 is pivotally displaced to the above-described parallel position. Further, the temporary support 110 is fixed at the parallel position by inserting the fixing pin 159 through the first fixing hole 156 and the base side fixing hole (not shown) of the bracket 150 . Next, the operator OP presses the mode changeover switch SW9 of the first upper operating device 45 only once. At this time, the winding mode display lamp LP5 and the temporary support mode display lamp LP6 of the first upper operating device 45 blink, prompting the operator OP to perform the next work.

Next, the operator OP pulls out the fixing pin 159 from the first fixing hole 156 and the base side fixing hole (not shown) of the bracket 150, and as shown in FIG. to the vertical position. The operator OP also inserts the fixing pin 159 through the third fixing hole 158 and the base-side fixing hole of the bracket 150 to fix the temporary support 110 in the vertical position. Next, the operator OP presses the mode changeover switch SW9 of the first upper operating device 45 only once.

When a switching operation signal for switching from the temporary support mode to the pre-use inspection mode is input to the controller 200, the abnormality determination unit 206 of the controller 200 detects the operation signal input from the mode switching switch SW9 thereafter, and the load detection unit 140 level. The horizontal load and vertical load detected by the horizontal load detector 141 and vertical load detector 142 are detected by the swinging displacement of the temporary support 110 based on the detection signals and the like input from the load detector 141 and vertical load detector 142 . Determine whether the load changes. The abnormality determination unit 206 outputs an abnormality notification signal to the first upper operating device 45 when the determination is NO. As a result, the operation stop lamp LP1 of the first upper operating device 45, the take-up mode display lamp LP5, and the temporary support mode display lamp LP6 alternately flash to inform the operator OP of the abnormality. be. When the abnormality notification signal is output from the abnormality determination unit 206, the operator OP presses the operation stop switch SW1 of the first upper operating device 45, and then presses the mode switching switch SW9. By performing a push operation, it is possible to return to the high altitude mode.

On the other hand, when the determination is YES, the abnormality determination section 206 outputs a normality notification signal to the first upper operating device 45 . As a result, the winding mode display lamp LP5 and the temporary support mode display lamp LP6 of the first upper operating device 45 are lit, and the operator OP is notified that no abnormality was detected in the pre-use inspection mode. . When the normality notification signal is output from the abnormality determination unit 206, it is possible to switch from the pre-use check mode to the temporary support mode.

In order to switch from the pre-use inspection mode to the temporary support mode, the operator OP long-presses the mode switching switch SW9 of the first upper operating device 45 . At this time, the mode switching switch SW9 outputs a switching operation signal for switching from the pre-use inspection mode to the temporary support mode to the controller 200 . Also, the take-up mode display lamp LP5 of the first upper operating device 45 is turned off and only the temporary support mode display lamp LP6 is turned on to inform the operator OP that the temporary support mode has been switched to.

In this way, by switching from the aerial work mode to the temporary support mode, it is possible to temporarily support the wires using the first vehicle for aerial work 1 . Next, the operator OP pulls out the fixing pin 159 from the third fixing hole 158 and the base side fixing hole (not shown) of the bracket 150, and as shown in FIG. to the inclined position. The operator OP also inserts the fixing pin 159 through the second fixing hole 157 and the base-side fixing hole of the bracket 150 to fix the temporary support 110 at the inclined position. Next, the operator OP performs a swing operation of the sub-boom 74 with respect to the sub-boom swing operation lever LV3 of the first upper operation device 45, and the temporary support 110 becomes horizontal as shown in FIG. , the sub-boom 74 is swung and displaced. At this time, the roller member 124 on the tip side (of the support portion 123) of the three wire support portions 120 is opened.

Next, the operator OP swings the first workbench 40 with the swing operation lever LV1 of the first upper operating device 45 to swing the first workbench 40 . Further, the operator OP performs a turning operation of the turning member 71a with respect to the sub-boom turning operation lever LV4 of the first upper operating device 45, and turns the sub-boom 74 (turning member 71a). In this manner, the orientation of the wire support portion 120 of the temporary support device 100 is aligned with the orientation of the wire C (see FIG. 20). Next, as shown in FIG. 6, the operator OP detachably attaches the remote control device 300 to the upper edge of the first workbench 40 and attaches the other end of the cable 301 (see FIG. 7). is electrically connected to an input/output port (not shown) of the first upper operating device 45 .

Next, in the device moving step ST2, the operator OP performs a boom actuating operation of the lower operating device 27 in the first aerial work vehicle 1 to actuate the first boom 30 (raising, extending, or 20, the temporary support device 100 is moved to the vicinity of the electric wire C. As shown in FIG. At this time, the operator OP on the ground operates the lower priority switch SW24 in the lower operating device 27, raises and lowers the first boom 30 with respect to the raising and lowering switch SW23, and operates the first boom 30 with respect to the telescopic switch SW21. An expansion/contraction operation or a turning operation of the first boom 30 (first swivel base 20) with respect to the turning switch SW22 is performed. In this manner, the temporary support device 100 is moved to the vicinity of the electric wire C supported by the utility pole D and positioned at a predetermined height by operating the boom of the lower operating device 27 in the first aerial work vehicle 1. be able to.

The operation control unit 201 of the first aerial work vehicle 1 controls the control valve 53 based on the operation signal from the lower operation device 27 (elastic switch SW21, swing switch SW22, hoisting switch SW23, lower priority switch SW24). is electromagnetically driven to operate each hydraulic actuator 55 to control the operation of the first boom 30 . When the switching operation signal for switching to the temporary support mode is input from the mode switching switch SW9 of the first upper operating device 45, the boom operation regulating section 204 of the first aerial work vehicle 1 then controls the load detecting section 140. The position of first workbench 40 calculated by position calculator 203 is maintained until the horizontal load and vertical load detected by horizontal load detector 141 and vertical load detector 142 change by exceeding a predetermined amount of change. and a preset allowable working range. When the position of the first workbench 40 calculated by the position calculator 203 reaches the outer edge of the allowable work range, the boom operation restricting unit 204 regulates the operation regardless of operation signals from the operating devices 27, 45, and 300. First, among the operations of the first boom 30, the operations in the direction in which the first workbench 40 moves outside the allowable work range are restricted.

Next, in the temporary support step ST3, the worker OP on the ground gets on the second workbench 540 of the second aerial work vehicle 501 . The operator OP on the second workbench 540 operates the second upper operating device 545 to operate the boom, and as shown in FIG. or swiveling) to move the second workbench 540 to the vicinity of the first workbench 40 in the first aerial work vehicle 1 .

At this time, the operator OP confirms whether or not the orientation of the electric wire support portion 120 of the temporary support device 100 matches the orientation of the electric wire C. As shown in FIG. When the direction of the wire support portion 120 of the temporary support device 100 does not match the direction of the wire C, the operator OP on the second workbench 540 performs the first upper operation on the first aerial work vehicle 1. The device 45 is approached. Then, the operator OP swings the swing operation lever LV1 of the first upper operating device 45 or swings the sub-boom swing operation lever LV4 to swing the first workbench 40. Alternatively, the direction of the electric wire support portion 120 of the temporary support device 100 is adjusted by turning the sub-boom 74 .

Next, the operator OP on the second workbench 540 removes the remote control device 300 from the upper edge of the first workbench 40, as shown in FIG. Next, the operator OP on the second workbench 540 turns on the power switch SW41 of the remote controller 300 to turn on the power of the remote controller 300 . In FIGS. 22, 23, 25, and 28, the operator OP on the second work table 540 performs each actuation operation while holding the remote control device 300. Each actuation operation can be performed with 300 detachably attached to the upper edge of second workbench 540 (see FIG. 24).

Next, the operator OP on the second workbench 540 operates the remote control device 300 to operate the boom to operate the first boom 30 (elevating motion, telescopic motion, or pivoting motion). The wire support part 120 of the support device 100 is brought close to the wire C. As shown in FIG. Further, the operator OP operates the remote control device 300 to operate the first boom 30, and as shown in FIG. insert At this time, the operator OP on the second workbench 540 operates the boom operating switch SW43 in the remote control device 300, operates the first boom 30 with respect to the raising/lowering switch SW46, and operates the telescopic switch SW44. The telescopic operation of the first boom 30 or the turning operation of the first boom 30 (first swivel base 20) with respect to the turning switch SW45 is performed.

The operation control unit 201 of the first aerial work vehicle 1 controls the control valve 53 based on the operation signal from the remote control device 300 (boom operation switch SW43, telescopic switch SW44, turning switch SW45, hoisting switch SW46). is electromagnetically driven to operate each hydraulic actuator 55 to control the operation of the first boom 30 . Note that when the same boom actuation operation as the boom actuation operation of the lower operation device 27 is performed by the remote control device 300 , the actuation control unit 201 causes the first boom 30 to act according to the boom actuation operation of the remote control device 300 . (hoisting, telescoping, or turning) is lower than the speed at which the first boom 30 operates in response to the boom actuating operation of the lower operating device 27. It controls the expansion/contraction operation of the cylinder 31 and the rotation operation of the turning motor 24 . Accordingly, even if the remote control device 300 is erroneously operated, the first boom 30 operates at a relatively low speed, so that the phenomenon of lowering safety can be easily avoided. It is possible to improve the safety of the work of temporarily supporting the electric wire C on the .

Next, as shown in FIG. 24, the operator OP on the second workbench 540 uses a hot stick (insulated tool for live wire work) HT to move the roller member on the tip end side of the wire support portion 120. Close 124. Also, the operator OP removes the binding wire (not shown) for fixing the electric wire C from the electric wire C using the hot stick HT. As a result, the electric wire C is inserted through the gap provided in the electric wire supporting portion 120 of the temporary supporting device 100 , and the electric wire C can be temporarily supported by the temporary supporting device 100 .

Next, as shown in FIG. 25, the operator OP on the second workbench 540 operates the remote control device 300 to operate the boom to operate the first boom 30 (elevating motion, telescopic motion, or pivotal motion) to move the temporary support device 100 together with the electric wire C. At this time, the operator OP on the second workbench 540 operates the boom operating switch SW43 in the remote control device 300, operates the first boom 30 with respect to the raising/lowering switch SW46, and operates the telescopic switch SW44. The telescopic operation of the first boom 30 or the turning operation of the first boom 30 (first swivel base 20) with respect to the turning switch SW45 is performed.

At this time, the load from the electric wire C acts on the temporary support 110 of the temporary support device 100 . As a result, the horizontal load and the vertical load detected by the horizontal load detector 141 and the vertical load detector 142 of the load detection section 140 greatly change exceeding the predetermined amount of change. In this case, the boom operation restricting section 204 of the first aerial work vehicle 1 compares the moment calculated by the moment calculating section 202 with a preset restricted moment. When the moment calculated by the moment calculating unit 202 reaches the regulated moment, the boom operation restricting unit 204 restricts the operation of the first boom 30 regardless of the operation signals from the operation devices 27 , 45 , 300 . , restricts the operation in the direction in which the overturning moment acting on the first boom 30 increases (lowering movement, extension movement, turning movement in a predetermined direction).

Next, the operator OP on the second workbench 540 attaches the remote control device 300 to the upper edge of the first workbench 40 and returns it, as shown in FIG. At this time, the operator OP turns off the power switch SW41 of the remote controller 300 to turn off the power of the remote controller 300 . Next, the operator OP on the second workbench 540 approaches the first upper operating device 45 . The operator OP then turns off the power switch SW2 of the first upper operating device 45 to turn off the power of the first upper operating device 45 . In this manner, the operation of temporarily supporting the electric wire C on the temporary support device 100 of the first aerial work vehicle 1 is performed.

The first aerial work vehicle 1 can be left in a state in which the electric wire C is temporarily supported by the temporary support device 100 . Therefore, the operator OP on the second workbench 540 operates the second upper operating device 545 to operate the second boom 530 (lowering motion, retraction motion, or turning motion). The second workbench 540 is moved near the ground. After getting off the second workbench 540, the operator OP turns off the engine key (not shown) of the first aerial work platform 1. FIG. In addition, the operator OP who got off the second workbench 540 can also perform other work. Thus, according to the present embodiment, it is possible to temporarily support the electric wire C on the temporary support device 100 of the first aerial work vehicle 1 without getting on the first workbench 40. It becomes possible to eliminate wasteful work.

Next, in the wire fixing step ST4, the operator OP on the ground turns on the engine key (not shown) of the first aerial work vehicle 1 . Next, the worker OP on the ground gets on the second workbench 540 in the second aerial work vehicle 501 . The operator OP on the second workbench 540 operates the second upper operating device 545 to operate the boom, and as shown in FIG. or swiveling) to move the second workbench 540 to the vicinity of the first workbench 40 in the first aerial work vehicle 1 .

Next, the operator OP on the second workbench 540 approaches the first upper operating device 45 of the first aerial work vehicle 1 . Then, the operator OP turns on the power switch SW2 of the first upper operating device 45 to turn on the power of the first upper operating device 45 . Note that once the engine key (not shown) of the first aerial work vehicle 1 is turned off, the temporary support mode returns to the high altitude mode. Therefore, the operator OP operates the first upper operating device 45 to switch from the high place mode to the temporary support mode. Specifically, the operation stop switch SW1 of the first upper operating device 45 is pushed, and the aerial work device, etc. (first swivel base 20, first boom 30, first workbench 40) etc.). Next, after the mode changeover switch SW9 of the first upper operating device 45 is pushed only once, the operation stop switch SW1 is pulled to stop the operation of the aerial work equipment. state.

Next, the operator OP on the second workbench 540 removes the remote control device 300 from the upper edge of the first workbench 40 . Next, the operator OP on the second workbench 540 turns on the power switch SW41 of the remote controller 300 to turn on the power of the remote controller 300 .

Next, the operator OP on the second workbench 540 operates the remote control device 300 to operate the boom to operate the first boom 30 (elevating motion, telescopic motion, or pivoting motion). The electric wire C temporarily supported by the support device 100 is brought close to the upper portion of the insulator G on the utility pole D. Further, the operator OP operates the remote control device 300 to operate the boom to operate the first boom 30, and as shown in FIG. It is arranged on the upper part of the insulator G. At this time, the operator OP on the second workbench 540 operates the boom operating switch SW43 in the remote control device 300, operates the first boom 30 with respect to the raising/lowering switch SW46, and operates the telescopic switch SW44. The telescopic operation of the first boom 30 or the turning operation of the first boom 30 (first swivel base 20) with respect to the turning switch SW45 is performed.

Next, the operator OP on the second workbench 540 uses a hot stick HT to fix the electric wire C to the top of the insulator G on the utility pole D with a binding wire (not shown). In addition, the operator OP uses the hot stick HT to release the roller member 124 on the tip side of the wire support portion 120 . Next, the operator OP on the second workbench 540 operates the remote control device 300 to operate the boom to operate the first boom 30 (elevating motion, telescopic motion, or pivoting motion). The wire support portion 120 of the support device 100 is retracted from the wire C. As shown in FIG. At this time, the operator OP on the second workbench 540 operates the boom operating switch SW43 in the remote control device 300, operates the first boom 30 with respect to the raising/lowering switch SW46, and operates the telescopic switch SW44. The telescopic operation of the first boom 30 or the turning operation of the first boom 30 (first swivel base 20) with respect to the turning switch SW45 is performed.

Next, the operator OP on the second workbench 540 attaches the remote control device 300 to the upper edge of the first workbench 40 and returns it. At this time, the operator OP turns off the power switch SW41 of the remote controller 300 to turn off the power of the remote controller 300 . In this way, the work of fixing the electric wire C temporarily supported by the temporary support device 100 of the first aerial work vehicle 1 to the insulator G of the utility pole D is performed. An operator OP on the second workbench 540 operates the second upper operating device 545 to operate the second boom 530 (lowering motion, retraction motion, or turning motion) to operate the second boom 530 . is moved to the vicinity of the ground.

Next, in the device return process ST5, the operator OP who got down from the second workbench 540 operates the lower operating device 27 of the first aerial work platform 1 to operate the first boom 30. (lowering movement, contraction movement, or turning movement) to move the temporary support device 100 to the vicinity of the ground. At this time, the operator OP on the ground operates the lower priority switch SW24 of the lower operating device 27, raises and lowers the first boom 30 with respect to the raising and lowering switch SW23, and operates the first boom 30 with respect to the telescopic switch SW21. An expansion/contraction operation or a turning operation of the first boom 30 (first swivel base 20) with respect to the turning switch SW22 is performed. In this manner, the temporary support device 100 can be returned to the ground by the boom operation operation of the lower operating device 27 in the first aerial work vehicle 1 .

After returning the temporary support device 100 to the ground, the operator OP operates the first upper operating device 45 to switch from the temporary support mode to the high place mode. In order to switch from the temporary support mode to the high place mode, first, the operator OP presses the operation stop switch SW1 of the first upper operating device 45 to turn the high place work device (the first swivel base). 20, first boom 30, first work platform 40, etc.) are deactivated. Next, the operator OP pushes the mode changeover switch SW9 of the first upper operating device 45 only once, and then pulls the operation stop switch SW1 to turn off the aerial work equipment, etc. cancel the state in which the operation of is stopped. At this time, the mode switching switch SW9 outputs to the controller 200 a switching operation signal for switching from the temporary support mode to the high altitude mode. In addition, the temporary support mode indicator lamp LP6 (and the winding mode indicator lamp LP5) of the first upper operating device 45 are extinguished, and the operator OP is notified that the mode has been switched to the high altitude mode.

Next, the operator OP turns off the power switch (not shown) in the load detection unit 140 of the temporary support device 100 to turn off the power of the temporary support device 100 . Next, the operator OP removes the wire support portion 120 and the support arm 130 of the temporary support device 100 from the load detection portion 140 . The operator OP then removes the load detector 140 from the bracket 150 of the temporary support device 100 . The operator OP then removes the bracket 150 from the tip of the sub-boom 74 .

As described above, according to the temporary support construction method according to the present embodiment, the first aerial work vehicle 1 is detachably attached to the first workbench 40, and from the first workbench 40 A remote control device 300 capable of operating the boom to operate the first boom 30 even when removed and separated from the first workbench 40 is provided. Then, the second aerial work vehicle 501
, and on a second workbench 540 separated from the first workbench 40, the remote control device 300 removed from the first workbench 40 is operated to operate the boom, and the first boom 30 to temporarily support the wire C in the temporary support device 100 . As a result, the work of temporarily supporting the wire C on the temporary support device 100 of the first aerial work vehicle 1 can be performed without getting on the first workbench 40, and wasteful work can be eliminated. be possible.

In the temporary support construction method described above, when the same boom actuation operation as the boom actuation operation of the lower operating device 27 is performed by the remote control device 300 , the operation control unit 201 of the first aerial work vehicle 1 is controlled by the remote control device 300 . The speed at which the first boom 30 operates (elevating motion, telescoping motion, or swinging motion) in response to the boom operating operation of the lower operating device 27 is higher than the speed at which the first boom 30 operates in response to the boom operating operation of the lower operating device 27. The telescopic operation of the hoisting cylinder 23, the telescopic operation of the telescopic cylinder 31, and the rotational operation of the turning motor 24 are controlled so that Accordingly, even if the remote control device 300 is erroneously operated, the first boom 30 operates at a relatively low speed, so that the phenomenon of lowering safety can be easily avoided. It is possible to improve the safety of the work of temporarily supporting the electric wire C on the .

In addition, according to the (first) aerial work platform 1 according to the present embodiment, for example, when boarding another work platform of another aerial work platform, and on the other work platform separated from the work platform 40, It is possible to operate the remote control device 300 removed from the work table 40 to operate the boom 30 to temporarily support the wire C on the temporary support device 100 . In this way, the work of temporarily supporting the wire C on the temporary support device 100 can be performed without getting on the workbench 40, so that wasteful work can be eliminated.

In the (first) aerial work vehicle 1 described above, the operation control unit 201 causes the boom 30 to operate (elevate, extend, or pivot) in accordance with the boom operating operation of the remote control device 300, as described above. ) is lower than the speed at which the boom 30 operates in response to the boom operating operation of the lower operating device 27, the telescopic operation of the hoisting cylinder 23, the telescopic operation of the telescopic cylinder 31, and the rotating operation of the turning motor 24 are performed. Control. As a result, as described above, it is possible to easily avoid the phenomenon of lowering safety, and it is possible to improve the safety of the work of temporarily supporting the wires C on the temporary supporting device 100 .

In the above-described embodiment, the remote control device 300 is electrically connected to the controller 200 and the like via the cable 301, but the invention is not limited to this. For example, the remote control device may be configured to be able to transmit and receive data to and from the controller 200 using wireless communication.

In the above-described embodiment, the remote control device 300 has the telescopic switch SW44, the swivel switch SW45, and the up-and-down switch SW46, but is not limited thereto. and a sub-boom turning operation switch (not shown) for turning the sub-boom 74 (turning member 71a).

In the above-described embodiment, a high place mode and a temporary support mode are provided, but a winding mode may also be provided. The winding mode is a control mode in which the hoisting device 70 can be used to perform an oblique pulling operation for pulling the electric wire in an oblique direction and a horizontal pulling operation for pulling the electric wire in the horizontal direction. Further, in this case, the mode changeover switch SW9 may be switched in order from the high altitude mode to the temporary support mode, the winding mode, the high altitude mode, the temporary support mode, . . . by pressing.

In the above-described embodiment, the hydraulic pumps that supply hydraulic oil are the (first) hydraulic pump 51 driven by the engine E of the vehicle body 2 and the power take-off mechanism 52, and the electric motor (
(not shown) driven by a second hydraulic pump (not shown), but is not limited to this. For example, only a hydraulic pump driven by the engine E of the vehicle body 2 and the power take-off mechanism 52 may be provided, or only a hydraulic pump driven by an electric motor (not shown) may be provided.

1 (first) aerial work vehicle 2 (first) vehicle body 23 hoisting cylinder 24 turning motor 31 telescopic cylinder 27 lower operating device 30 (first) boom 40 (first) workbench 45 (first) ) Upper operation device 100 Temporary support device 200 Controller 204 Boom operation control unit 300 Remote operation device 501 Second aerial work vehicle 502 Second vehicle body 530 Second boom 540 Second workbench 545 Second upper operation device

Claims (4)

A first boom provided on a movable first vehicle body so as to be operable including at least hoisting motion, a first workbench provided at the tip of the first boom, and the first boom and a temporary support device provided at the tip of the first boom for temporarily supporting an electric wire; and ,
a second boom provided on a movable second vehicle body so as to be operable including at least hoisting motion; a second workbench provided at the tip of the second boom and on which a person can ride; A temporary support construction method for temporarily supporting electric wires by using a second aerial work vehicle equipped with a second operating device for operating a boom operating operation for operating two booms,
The first operating device is
a lower operating device provided on the first vehicle body and performing a boom operating operation for operating the first boom;
It is detachably attached to the first workbench, and the boom operating operation for operating the first boom is possible even at a position separated from the first workbench by being removed from the first workbench. a remote control device;
performing a boom operating operation of the lower operating device to operate the first boom to move the temporary support device to the vicinity of an electric wire positioned at a predetermined height;
A worker rides on the second workbench, operates the second operating device provided on the second workbench to operate the boom, operates the second boom, and moves the second workbench to the above. Move to the vicinity of the first workbench,
In the second workbench, the remote control device detached from the first workbench is operated to operate the boom, and the first boom is actuated to cause the temporary support device to temporarily support the electric wire. Temporary support method. The first aerial work vehicle,
an actuator that actuates the first boom;
When the same boom operating operation as the boom operating operation of the lower operating device is performed by the remote operating device, the speed at which the first boom operates in response to the boom operating operation of the remote operating device is the same as that of the lower operating device. The temporary support construction method according to claim 1, further comprising an operation control unit that controls the operation of the actuator so that the speed becomes lower than the speed at which the first boom operates in response to the boom operation operation of . a boom provided on a drivable vehicle body so as to be operable including at least hoisting motion;
a workbench that is provided at the tip of the boom and can be boarded;
a temporary support device provided at the tip of the boom to temporarily support the electric wire;
a lower operating device that is provided on the vehicle body and performs a boom operating operation for operating the boom;
A remote control device that is detachably attached to the workbench and capable of operating the boom to operate the boom even at a position removed from the workbench and separated from the workbench. Aerial work vehicle. an actuator that actuates the boom;
When the same boom operating operation as the boom operating operation of the lower operating device is performed by the remote operating device, the speed at which the boom operates in response to the boom operating operation of the remote operating device is the same as the boom operating operation of the lower operating device. 4. The aerial work platform according to claim 3, further comprising an operation control unit that controls the operation of the actuator so that the speed becomes lower than the speed at which the boom operates according to the operation.

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