JPH04121998U - Control device for aerial work vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] To enable an inactive work platform side control device of an aerial work vehicle to be easily activated from the vehicle body side or another work platform side. [Structure] In the control device for an aerial work vehicle, a signal output means for outputting a start signal to start a work platform side control device 12 that is not in operation includes a vehicle body side control device 13 and another work platform side control device 11. The workbench side control device 12 is provided with a start switch means for starting the workbench side control device 12 in response to a start signal from the signal output means.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a high-altitude work vehicle for controlling the lifting and lowering of the work platform and other movements. The present invention relates to a control device for a work vehicle.

0002

[Conventional technology]

Aerial work vehicles use booms that swivel, raise and lower, and extend and retract on the body of the vehicle to raise and lower the vehicle. Equipped with a movable workbench, workers on the workbench can move to any height. It is now possible to In addition, recent aerial work vehicles have control over the movement of the work platform. In order to (referred to as a control device) is installed. Then, these control devices control each other. It is required to improve work efficiency and ensure work safety while exchanging signals. This constitutes a control device for an aerial work vehicle that enables movement control of a work platform. In addition, There are also aerial work vehicles equipped with multiple work platforms, in which the work platform side control device described above is not activated. It is attached to each workbench. By the way, these aerial work vehicles are equipped with a body-side control device (control device for aerial work vehicles). (often the main control device) may malfunction, causing the above control signal to be sent. For safety reasons, if the numbers are not being exchanged properly, the control device on the work platform should be A safety device is often provided to stop the operation. We also handle high voltage electricity, etc. For aerial work vehicles that are used for work such as In addition, the workbench side control device is installed to maintain electrical insulation between the workbenches. A power supply for the machine is attached to the workbench. However, there are restrictions on the weight loaded on the workbench. Due to limitations, the power source is limited to a small one, so there is no wasteful consumption of that small power source. In order to reduce Cutting the power supply from the source to the platform control device to stop its operation. Energy-saving devices such as these are often installed.

0003 In addition, if the work platform side control device is stopped due to the activation of the above safety device, After repairing the safety device on the vehicle body, etc., There are cases where you want to move the In addition, on a workbench where no worker is on board, Even though the workbench control device is stopped due to the activation of the energy saving device mentioned above, However, depending on the work, the work platform may be used by a worker on the ground or by another worker. The worker on the platform can control the vehicle body side control device or the platform side control of another work platform. You may want to move it through the device. However, in these cases, the operation may be stopped. The desired workbench movement control described above will be performed unless the workbench side control device that is inactive is activated. I can't.

0004

[Problem that the idea aims to solve]

However, in the above case, conventionally, the work platform side control while the operation is stopped is If the startup operation is not performed directly on the control device, the workbench side control device will be activated. The problem was that it was extremely inconvenient. This invention was developed in view of these problems, and is designed to prevent A high location where the side control device can be easily activated from the vehicle body side or another work platform side. The purpose is to provide a control device for a work vehicle.

[0005]

[Means to solve the problem]

In order to achieve the above purpose, the control device for an aerial work vehicle of the present invention has The device has a signal output that outputs a start signal to start the work platform side control device that is not operating. In addition to providing a power means, a start signal from the signal output means is sent to the workbench side control device. and a start switch means for starting the workbench side control device in response to the above. There is. In addition, if multiple workbenches are provided, the vehicle body side control device and the workbench side control device A signal that outputs a start signal to start the work platform side control device that is not operating at each location. In addition to installing the output means, install the above start switch means for each control device on the workbench side. Installed and configured.

[0006]

[Effect]

In such a control device for a high-altitude work vehicle, the startup operation etc. of the control device on the vehicle body side A start signal is output from the signal output means, and the start switch means receives the start signal. For example, if power is not being supplied from the power source to the control means on the workbench that is not operating. The workbench side control means is activated, and the movement of the workbench from the vehicle body can be controlled. In addition, if multiple workbenches are provided, the workbench on which the worker is on Attach to the workbench side control device by starting operation etc. on the workbench side control device. A start signal is output from the signal output means, and the workbench that is not in operation receives the start signal. Its operation is carried out in the same manner as above by activation switch means mounted on the side control device. The workbench side control means is activated to control the movement of the workbench where the worker is absent from another workbench. control becomes possible.

[0007]

【Example】

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, FIG. Explain using. This aerial work vehicle 20 has a swivel base 2 rotatably attached to the rear of a vehicle body 21. A telescopic boom 23 is pivotally attached to the upper part of the boom 2, and the tip of the boom 23 is At the end, two workbench (first The first workbench 26 and the second workbench 27) are attached so that they can swing freely in the horizontal direction. . Note that this aerial work vehicle 20 is mainly used for electrical work, and is not suitable for vehicles. In order to maintain electrical insulation between the body 21 and each workbench 26, 27, The distal end side of 3 and each arm 24, 25 are formed of an insulating material. The workers who boarded the work platforms 26 and 27 of such an aerial work vehicle 20 each A control device installed on the workbench (first workbench side control device 11 and second workbench side control device 11) The swivel base 22, boom 23, arms 24, 25 and the Operate the work platforms 26, 27 (hereinafter referred to as the boom 23, etc.) and Both can be moved up and down or otherwise moved relative to the vehicle body 21, and electrical work etc. can be carried out without worrying about electric shock accidents. It can be performed. In addition, this aerial work vehicle 20 can handle a variety of work contents. It is attached to the vehicle body 21 (swivel base 22) so that it can be operated by workers on the ground. The operation of the boom 23, etc. is controlled through the vehicle body control device 13, which is operated by It is also possible to control the movement of workbenches 26 and 27.

[0008] Here, the first workbench side control device 11, the second workbench side control device 12 and the vehicle body The side control device 13 mutually exchanges operation signals and other signals with the vehicle body side control device 13 as the main body. Exchanging control signals. Through the exchange of control signals, For example, the operating speed of the boom 23 etc. corresponds to the speed of movement of the work platforms 26 and 27. Controls related to work efficiency such as control of The boom may lead to movement of the work platforms 26, 27 that may impair the stability of the vehicle body 21. Control for aerial work vehicles that performs controls related to work safety, such as regulating the operation of 23 etc. configuring the device. For this reason, this aerial work vehicle 20 has a main body side control system. Work safety may be compromised due to faulty exchange of control signals due to abnormal operation of the control device 13, etc. If abnormal operation of the vehicle body control device 13 is detected, , stop the operation of both workbench side control devices 11 and 12 (specifically, the A safety device (not shown) is provided to cut the power supply from the battery B. It is. Note that the above control signals are exchanged using an optical fiber in order to maintain the above-mentioned insulation state. This is done using an optical communication system (not shown) using optical fibers, but the same principle applies. Therefore, the power supply (battery) of the first workbench side control device 11 and the second workbench side control device 12 is A battery B) is provided for each workbench 26 and 27, and is also used to replace the battery of the vehicle body side control device 13. The vehicle body 21 is also equipped with a rib B (see FIG. 1). However, the mounting of workbenches 26 and 27 Due to limitations on the payload, batteries B and B mounted on the workbenches 26 and 27 are equipped with small and lightweight batteries. (low capacity) is used. Therefore, this aerial work vehicle 20 has Power is supplied from batteries B and B mounted on workbenches 26 and 27. Nevertheless, the workbench side control devices 11 and 12 are not operated for a certain period of time. If the battery B is connected to the workbench side control device (11 or 12), Energy saving function that cuts the power supply to prevent unnecessary power consumption of the battery B. A device (not shown) is also provided.

[0009] Furthermore, this control device for aerial work vehicles has the ability to operate the safety devices or energy-saving devices mentioned above. Later, the workbench side control device (11 or 12) whose operation has been stopped can be easily activated. It has a remote activation device as shown in FIG. In addition, each control The arithmetic unit CPU in the devices 11 to 13 serves as the core of each control device 11 to 13 and operates on the workbench. It performs various calculations related to movement control of 26 and 27. This remote activation device 1 includes a vehicle body side control device 13 and both workbench side control devices 11 and 1. Three signal generators SG, SG, SG attached to 2 and both workbench side control devices It consists of two start switches SW and SW attached to 11 and 12. Ru. Note that an optical fiber is connected between each signal generator SG and each start switch SW for the reason mentioned above. They are connected by fibers F,...,F. The signal generator SG is connected to the battery B of the control device (11, 12 or 13). Then, in response to the operator's switch operation for remote activation, the power is discharged from battery B. Outputs a start signal (optical signal) using electric power. The start switch SW is the battery in the workbench side control device (11 or 12). When the power supply from the optical fiber F to the computing unit CPU is cut off, When the start signal is input through the power supply, the power supply cut is canceled and the workbench is Activate the side control device. In addition, in order to ensure the operation of this start switch SW, Even if the power supply to the computer CPU is cut off, the power from the battery B is Power for standby operation is supplied to the start switch SW, but the power is Since the power is weak, the consumption of battery B is extremely small.

0010 According to the remote activation device configured as described above, for example, as shown in FIG. Since no worker is on the workbench 27, the energy saving device is activated and the second Even if the work platform side control device 12 stops, a worker on the ground (not shown) can control the vehicle side. from the signal generator SG of the control device 13, or when the worker M on the first workbench 26 Activation of the second workbench side control device 12 from the signal generator SG of the first workbench side control device 11 By inputting a start signal to the switch SW, it is started and the second workbench 2 7 can be moved.

[0011] In addition, in this example, the control system for an aerial work vehicle equipped with two work platforms is used. Although we have explained about the installation of the work platform, even if the work platform is a single aerial work vehicle, the work platform can be installed in the same way. The side control device can be remotely activated from the vehicle body side control device.

0012

[Effect of the idea]

As described above, according to the control device for an aerial work vehicle of the present invention, when the work platform is stopped The side control device can be replaced with the vehicle body side control device or another workbench side control device (if the workbench has multiple The work that should be started since it can be started through Even if a worker is not on the work platform to which the platform side control device is attached, the work can be done easily. It is convenient because it allows you to control the movement of the table, and it is also effective in improving work efficiency. be.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a control device for an aerial work vehicle according to the present invention.

FIG. 2 is a perspective view of an aerial vehicle equipped with the above-described controller for an aerial vehicle.

[Explanation of symbols]

1 Control device for aerial work vehicles 11, 12 Workbench side control device 13 Vehicle side control device 26, 27 Workbench SG signal generator SW Start switch

Claims (2)

[Scope of utility model registration request] Claim 1: In an aerial work vehicle equipped with a work platform on a vehicle body that can be moved up and down or otherwise movable with respect to the vehicle body, each of the vehicle body and the work platform is provided with a work platform for controlling the movement of the work platform. A control device for an aerial work vehicle comprising an attached vehicle body side control device and a workbench side control device, the control device being attached to the vehicle body side control device and activated to start up the workbench side control device which is inactive. A signal output means for outputting a signal, and a start switch means attached to the workbench side control device to start the workbench side control device in response to a start signal from the signal output means. Characteristic control device for aerial work vehicles. 2. The aerial work vehicle is equipped with a plurality of work platforms, and in order to control the movement of each of the work platforms, a vehicle body side control device and a plurality of work platform side control devices are provided for each of the vehicle body and the work platform. When a control device is attached, the signal output means is attached to each of the vehicle body side control device and the workbench side control device, and the start switch means is attached to each of the workbench side control device. The control device for an aerial work vehicle according to claim 1, characterized in that: