JPH079900U - Work vehicle failure display - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a failure display device for a work vehicle capable of easily identifying a work vehicle that is out of order. [Structure] The receiver 15 attached to the vehicle body 11 receives the failure confirmation signal transmitted from the transmitter 30 of the repair person.
Is received and the failure state is grasped by the trouble state grasping means 22, the trouble indicator 23 attached to the vehicle body displays the trouble. Accordingly, a repair person can easily find a work vehicle in a failure state at a site where a plurality of work vehicles are used, and can perform a quick repair work.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a work vehicle failure display device, and more particularly to a work vehicle failure display device capable of easily identifying a work vehicle having a failure.

[0002]

[Prior art]

 Aerial work vehicles, which are equipped with lift support means for vertically moving the work floor above the freely movable body, are often used for interior work and wiring work indoors. Such aerial work vehicles may be installed on each floor of a building at a work site such as a large building, and multiple similar work vehicles may be used at the same time. It

[0003]

[Problems to be solved by the device]

 In such a situation, if one aerial work vehicle fails, it is difficult for the repair personnel who go to the site for repair to identify the defective aerial work vehicle. For this reason, it sometimes took a long time to find out, and there was a problem that quick repair work could not be performed.

The present invention has been made in view of such a problem, and an object thereof is to provide a work vehicle failure display device capable of easily identifying a working vehicle that is out of order.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the failure display device of the present invention comprises a transmitter for transmitting a failure confirmation signal, a receiver mounted on the vehicle body, and a failure state grasping means. Then, the failure status is grasped by the failure status grasping means, and the failure indicator attached to the vehicle body displays the failure when the receiver receives the failure confirmation signal.

[0006]

[Action]

 In a work vehicle using such a failure display device, when a repair person sends a failure confirmation signal from the transmitter, the work vehicle is in failure (work vehicle in which the failure state grasping means grasps the failure state). Receives a failure confirmation signal, the failure display is displayed, so that the failed work vehicle can be easily specified from a plurality of work vehicles.

[0007]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. First, FIG. 1 shows an aerial work vehicle 10 equipped with a failure display device for a work vehicle according to the present invention. The aerial work vehicle 10 is configured based on a vehicle body 11 that travels using electric power supplied from a main battery (not shown) arranged in the vehicle body 11. A scissors-type telescopic link device 12 that extends and contracts in the vertical direction is disposed on the upper portion of the vehicle body 11, and a work floor 13 is horizontally supported on the upper end portion thereof. The vehicle body 11 is provided with wheels 14 driven by a traveling motor (not shown), and can freely travel in a desired direction by controlling the supply of electric power from the main battery (travel control).

The work floor 13 is provided with a work floor handrail 16 so as to prevent a worker, a tool, and the like on the work floor 13 from falling. Then, the operator rides on the work floor 13 together with tools and equipment used for the work and operates the operating device 20 attached to the hand floor handrail 16, thereby controlling the traveling of the vehicle body 11 and the scissor type. It is possible to perform expansion / contraction control of the expansion / contraction link device 12 and move to an arbitrary high place to perform a desired work. The operation device 20 is provided with a failure detection switch 22 and a failure indicator 23, in addition to an operation lever 21 for controlling traveling of the vehicle body. The failure detection switch 22 constitutes "failure state grasping means" described in the claims. Further, the failure indicator 23 is provided with an indicator light and a buzzer which are turned on during operation, and the vehicle body 11 is provided with a receiver 15 for receiving a signal from a transmitter, which will be described in detail later.

An operation when a failure occurs in the aerial work vehicle 10 configured as described above will be described with reference to FIG. When a worker who is working on the work floor 13 finds a malfunction of the work vehicle 10 at a height, the work vehicle is stopped and the malfunction detection switch 22 is turned on. When the failure detection switch 22 is turned on, electric power for operation is supplied from the auxiliary battery 24 provided in the vehicle body 11 to the receiver 15, and the receiver 15 is in a receivable state and the controller 25 also receives. Power for operation is supplied. Hereinafter, this state is referred to as a failure displayable state. As a result, even if the main battery is the faulty part of the aerial work vehicle 10 and the power supply from the main battery is cut off to ensure safety when the work vehicle is stopped, The operation of the device 15 and the controller 25 can be ensured, and the failure displayable state can be maintained.

Then, when the repair person arrives at the work site where the defective vehicle is placed and turns on the transmitter 30 he / she has brought, the transmitter 30 transmits a failure confirmation signal. The transmitter 30 is configured to transmit a failure confirmation signal by radio waves or optical signals. When the receiver 15 attached to the failed vehicle in the failure displayable state receives the failure confirmation signal, the received signal is transmitted to the controller 25. The controller 25 transmits a display signal to the failure indicator 23 by means of wiring provided in the scissors type telescopic link device 12. The fault indicator 23 can make a repair person recognize the presence of a faulty vehicle by turning on an indicator light or sounding a buzzer. It should be noted that the transmitter 30 can select whether the indicator light is turned on, the buzzer is sounded, or both of them are displayed as the failure display, and the display can be performed according to the environment of the work site.

According to the failure display device for a work vehicle configured as described above, it is not necessary for an operator who discovers a failure of an aerial work vehicle to identify a repaired vehicle for each repair person. It is possible to easily find a failed vehicle at a work site where multiple types of work vehicles are used. In addition, since the operator who finds the failure turns on the failure display only when the failure detection switch 22 is turned on, unnecessary power consumption of the auxiliary battery 24 can be suppressed and a repair person Since the failure display 23 displays a failure only when the failure confirmation signal is transmitted from the transmitter 30 of the auxiliary battery 24, the capacity of the auxiliary battery 24 may be small.

It should be noted that in the above-described embodiment, the failure detection switch turned on by the worker who has found the failure is used as the failure state grasping means, but the present invention is not limited to this embodiment. . For example, a failure detection means for detecting whether or not the operation is normally performed is attached to each operation part of the aerial work vehicle, and when the failure detection means detects a failure of any operation part, the failure occurs. By providing detection means for performing the same operation as when the discovery switch is turned on, the aerial work vehicle can be automatically placed in a failure displayable state. In addition, by displaying the detection signals from each failure detection means on a display device etc. attached to the vehicle body, it is possible to display individual failure points to repair personnel, further improving the work efficiency of repair work. Can be made.

[0013]

[Effect of device]

 As described above, the work vehicle failure display device according to the present invention receives the failure confirmation signal transmitted from the transmitter of the repair person by the receiver mounted on the vehicle body and uses the failure state grasping means. When the fault condition is known, the fault indicator attached to the vehicle body displays the fault. As a result, a repair person can easily find a work vehicle in a failure state at a site where a plurality of work vehicles are used, and can perform a quick repair work.

[Brief description of drawings]

FIG. 1 is a side view of an aerial work vehicle equipped with a work vehicle failure display device according to the present invention.

FIG. 2 is a block diagram showing an operation of the failure display device.

[Explanation of symbols]

 11 vehicle body 13 working floor 14 wheels 15 receiver 20 operating device 22 failure detection switch 23 failure indicator 30 transmitter

Claims (1)

[Scope of utility model registration request] 1. A transmitter for transmitting a failure confirmation signal, a vehicle body, failure state grasping means attached to the vehicle body, a receiver attached to the vehicle body, and a failure state grasping device attached to the vehicle body. A failure display device for a work vehicle, comprising: a failure display device that detects a failure state by means, and that displays a failure when the receiver receives a failure confirmation signal.