JPH0699764A - Alarming device for vehicle - Google Patents

Abstract

PURPOSE:To promptly sense an alarm by a driver and to instantaneously distinguish a trouble spot by the direction of the flow of flickering by performing an alarm in a situation where an alarm lamp is flickered like a flow before the starting of operation of a vehicle. CONSTITUTION:When a running operation lever 8 is not brought into a neutral position after through checking (diagnosis of a trouble) of an alarm lamp 10 and a buzzer before operation of a vehicle, the lamp 10 is lighted ON for a specified time and a buzzer is sounded, the alarm lamps 10 arranged in an alignment state on a control box are flickered like a flow from the left side to the right side. Further, when an elevating lever 9 or an elevating switch 11 is brought into an ON-state during either raising or lowering, the alarm lamps 10 are flickered like a flow from the right side to the left side and an alarm is announced so that each trouble spot can be distinguished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an alarm device for displaying an abnormality in an operation panel section of a vehicle.

[0002]

2. Description of the Related Art Conventionally, in various vehicles, alarm lamps for indicating abnormality occurrence at a plurality of locations in the vehicle are centrally arranged on a part of an operation panel, and when an abnormality occurs at a certain location, It has been known about an abnormality alarm structure in which a corresponding alarm lamp is lit to display an abnormality at the location to the driver, and further, in the case of occurrence of an abnormality at a location other than that displayed by the alarm lamp, A structure in which all the alarm lamps are turned on or blinked simultaneously is disclosed in Japanese Utility Model Publication No. 60-7951.

[0003]

When the alarm lamps are centrally arranged, it is desirable that the number of alarm lamps is as small as possible so that the operator can immediately check the alarm location. When an abnormality occurs during traveling driving, it is desirable to provide an alarm lamp corresponding to the abnormality so that the abnormal portion can be confirmed.
For aerial work vehicles, it is necessary to check the neutral position of the joystick-type traveling operation lever and to confirm that the lift switch that drives the lift link is off, even if a corresponding alarm lamp is not installed. If it can be identified by, the confirmation work can be performed immediately and the number of lamps can be reduced.

[0004]

The present invention has the following constitution in order to solve the above problems. That is, in a structure in which an alarm lamp that displays an abnormality corresponding to each occurrence of an abnormality at a plurality of locations inside the vehicle is arranged on the operation panel of the vehicle, an abnormality different from the abnormality at each location corresponding to each alarm lamp is detected. , The alarm lamps arranged in a row are displayed by sequentially blinking so as to flow in one direction, and when the type of abnormality is different, the blinking flow direction of the alarm lamps is made different. .

[0005]

[Function] When the traveling operation lever 8 is not in the neutral position after the alarm lamp and the buzzer check (fault diagnosis) before operating the aerial work vehicle lights up for a certain period of time and the buzzer sounds, a line is formed in the operation box. Warning lamp 10 placed in
When the a, 10b, 10c, and 10d are blinking so as to flow from the left side to the right side, and when the raising / lowering lever 9 or the raising / lowering switch 11 is in the ON state for either raising or lowering, the alarm lamp is on the right side. It flashes so as to flow to the left from, and gives an alarm so that each failure point can be distinguished.

[0006]

The problems and configurations to be solved by the present invention are as described above, and the embodiments of the present invention shown in the accompanying drawings will be described below. FIG. 1 is an overall side view of an aerial work vehicle using the present invention, and FIG. 2 is a perspective view showing a state where the workbench Y is also raised,
3 is a plan view showing the blinking direction of the alarm lamp 10 at the time of failure diagnosis, FIG. 4 is a timing chart of each alarm lamp at the time of alarm of neutral disengagement of the traveling lever at the time of failure diagnosis, and FIG. 6 is a timing chart when the switch is ON, FIG. 6 is a block diagram of an alarm circuit when the running control lever is out of neutral, and an up switch or a down switch is ON. FIG. 7 is a perspective view showing the operation surface of the operation box K1. The front view showing the operation surface of the operation box K2, FIG. 9 is a side view of the traveling operation lever 8,
10 is a plan view of the same, FIG. 11 is a plan view showing a state of a steering operation by the traveling operation lever 8, FIG. 12 is a diagram showing a relationship with the turning of the crawler traveling device, and FIG. 13 is a plan view of the elevating lever 9. 14 is a perspective view of the elevating switch 11.

The overall construction of the aerial work vehicle will be described with reference to FIGS. 1 and 2. The traveling vehicle X drives the crawler traveling device 1 by changing the driving force of the DC motor 2 using the battery 3 as a power source by the drive mission case M. A control box 4 is arranged near the DC motor 2. The steering is performed by side clutch actuators 5L and 5R, which are provided near the drive mission case M and are driven by independent left and right electric motors 5a.
This is done by connecting and disconnecting the clutch. Further, when the traveling operation lever 8 described later is set to the neutral position and the drive is stopped
An electromagnetic parking brake 13 that automatically brakes is provided outside the drive mission case M.

A workbench Y is connected to a traveling frame 6 of a traveling carriage X via a scissors link mechanism S. The scissor link mechanism S has a structure in which three stages of scissor links are pivotally connected, and is an upper lift cylinder 7a which is a hydraulic cylinder.
The lower lifting cylinder 7b is expanded and contracted to move up and down. Then, on the workbench Y, the upper operation box K1
A joystick type traveling operation lever 8 for performing both traveling and steering operations is provided on the operation surface of the upper operation box K1. Further, the traveling cart X is provided with a lower operation box K2.

The operation surface of the operation box K1 is as shown in FIG. 7, and in addition to the travel operation lever 8, an elevating lever 9 for expanding and contracting the elevating cylinders 7a and 7b is provided, and various alarms are provided. A lamp 10 is provided. And
The lower operation box K2 is as shown in FIG. 8, and in addition to an elevating switch 11 having the same function as the elevating lever 9, a key switch 12 and the like are provided.

Now, the traveling operation lever 8 will be described. The traveling operation lever 8 is, as shown in FIG. 9 and FIG.
A speed operation angle potentiometer 14 and a steering operation angle potentiometer 15 are attached to the base portion, and they detect the longitudinal tilt angle and the lateral tilt angle of the traveling operation lever 8, respectively. As shown in FIG. 11, the traveling operation lever 8 has a front F
The forward drive is performed when tilted to the rearward, and the reverse drive is performed when rearward is moved to the rearward. The center position of the front-rear direction is the drive neutral position, and the drive of the DC motor 2 is stopped. The range in which the front-back tilt angle of the lever is very small is defined as a "travel stop region T", which is regarded as an erroneous operation and is kept stopped. When the vehicle is tilted in the left-right direction, one of the side clutches is disengaged by the side-clutch actuators 5L and 5R, the drive of either the left or the right of the crawler traveling device 1 is stopped, and the vehicle body is turned. Immediately when the side clutch is disengaged, the vehicle body will turn even if the lever inclines to the left or right. Area Q ”. That is, when the traveling operation lever 8 is tilted back and forth within the "left and right side clutch entry area Q", the vehicle travels straight forward or backward, and the "left and right side clutch entry area Q" and "travel stop". When the vehicle tilts away from the zone "T" at an angle, the vehicle turns as shown in FIG. The center position corresponding to the "travel stop area T" and the "right and left side clutch entrance area Q" is the neutral position N.

The speed operation angle potentiometer 14 and the steering operation angle potentiometer 15 send a voltage to the controller 4 in accordance with the tilt angle of the traveling operation lever 8 to perform PWM.
The DC motor 2 is rotationally driven by drive control. The speed operation angle potentiometer 14 is a minimum voltage that does not drive the DC motor 2 when the travel operation lever 8 is located in the "travel stop area T" (2.35 in the aerial work vehicle of this embodiment). Even when the steering angle potentiometer 15 is located in the "left and right side clutch entry area Q", the minimum voltage that does not drive the side clutch actuator 5 is applied. -ing That is, at the neutral position N, both potentiometers 14 and 15 are in the lowest voltage state.

Next, the lifting lever 9 and the lifting switch 11
The configuration of will be described. The elevating lever 9 can be tilted back and forth, and the elevating switch 11 is configured to push the upper part or the lower part. Further, inside the vehicle, there are provided a raising switch 16 for extending the raising / lowering cylinder 7 to raise the workbench Y, and a lowering switch 17 for contracting the raising / lowering cylinder 7 to lower the workbench Y. When the elevating lever 9 is tilted forward or the upper part of the elevating switch 11 is pushed, the elevating switch 16 is turned on, and the elevating lever 9 is tilted toward you or the lower part of the elevating switch 11 is pushed, The lowering switch 17 is turned on.

Next, various alarm lamps 10 arranged in the operation box K1 will be described. The alarm lamp 10 is
As shown in FIG. 3, the battery level drop warning lamp 10a, the battery discharge warning lamp 10b, and the tilt warning lamp 10 are shown.
c, the overload warning lamps 10d are arranged side by side in a line.
The low battery level lamp 10a is lit when the electrolyte of the battery 3 is low during operation, and the battery discharge alarm lamp 10b is lit when the charge capacity of the battery is low during operation. The tilt warning lamp 10c lights up when the vehicle body tilts by a set value or more (forward and backward and left and right by 3 ° or more) during driving. The overload alarm lamp 10d is turned on when the load loaded on the workbench Y is more than a certain weight, and when the lamp is turned on, the workbench Y cannot be raised. And each lamp has
In order to visually limit the failure location immediately, a graphic representing the failure location is provided.

Next, a description will be given of a configuration in which the alarm lamp 10 gives a warning that the traveling operation lever 8 is out of the neutral position before driving, and that the lifting lever 9 and the lifting switch 11 are turned on or off. As shown in FIG. 6, in the traveling operation lever 8, by detecting the voltages of the speed operation angle potentiometer 14 and the steering operation angle ittenometer 15, in the elevating lever 9 and the elevating switch 11, the raising switch 16 and the lowering switch 17 are operated. By detecting the ON / OFF state, abnormality is detected in each part, an abnormality detection signal is input to the controller 4, and the alarm lamp 10 is controlled to be turned on.

Each of the alarm lamps 10 is turned on when an abnormality occurs in each part during operation.
Before the operation is started, when the power is turned on, all of them are turned on at the same time, and at the same time, the alarm buzzer sounds and the alarm lamp and the alarm buzzer are checked (fault diagnosis). If the lamp goes off and the buzzer stops after a certain period of time, it is normal and the operation can be started. However, at this time, when a failure of the traveling operation lever 8 or the lift lever 9 or the lift switch 11 is detected, the alarm lamp blinks so as to flow in one direction. Here, the failure refers to a state in which the lever position of the traveling operation lever 8 is out of the neutral position N, and if the operation is started as it is, it suddenly starts and steers, which is very dangerous. . Further, in the elevating lever 9 or the elevating switch 11, since the elevating lever 9 is tilted,
Alternatively, because the raising / lowering switch 11 is turned ON in either direction, or the lever and the switch are both in the neutral position, the raising switch 1
6 or the state in which the lowering switch 17 is turned on, and if the operation is started as it is, the workbench Y suddenly moves up and down, which is very dangerous.

When the traveling operation lever 8 is out of the neutral position, the speed operation angle potentiometer 1 is operated as described above.
4 or one of the steering operation potentiometers 15 is not in the minimum voltage range (2.35 V or less, or 2.65 V or more), and at this time, before starting operation. After the lamp and the buzzer are checked, the alarm lamps 10a to 10d blink so as to flow in the direction a in FIG. That is, as shown in FIG. 4, the voltage V for lighting the lamp is sequentially lit for a fixed period of time from the battery level drop warning lamp 10a to the overload warning lamp 10d, and a flowing blinking state is set. If either the ascending switch 16 or the descending switch 17 is turned on, the lamp 1 before the operation is started and the alarm lamp 1
Blinks 0a to 10d so as to flow in the direction b, that is, in the direction opposite to the direction when the travel operation lever 8 fails. That is, as shown in FIG. 5, the voltage V causes the overload warning lamp 10d to sequentially blink to the low battery level warning lamp 10a. The above-mentioned blinking states in the a direction and the b direction are maintained until the key switch 12 is reset from ON to OFF.
It will be maintained.

[0017]

Since the present invention is constructed as described above, it has the following effects. That is, since the warning is given in such a manner that the warning lamp flashes before the operation of the vehicle starts, the driver can immediately detect the warning and the failure location can be instantly distinguished by the direction of the flashing. In addition, the number of alarm lamps can be reduced, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an overall side view of an aerial work vehicle using the present invention.

FIG. 2 is a perspective view of the same when the workbench Y is raised.

FIG. 3 is a plan view showing a blinking direction of an alarm lamp 10 at the time of failure diagnosis.

FIG. 4 is a timing chart of respective alarm lamps at the time of warning that the running lever is out of neutrality during failure diagnosis.

[FIG. 5] Similarly, the up switch or the down switch is turned on.
It is a timing chart at time.

FIG. 6 is a block diagram of an alarm circuit when the traveling operation lever is out of neutrality and an up switch or a down switch is turned on.

FIG. 7 is a perspective view showing an operation surface of an operation box K1.

FIG. 8 is a front view showing an operation surface of a lower operation box K2.

9 is a side view of the traveling operation lever 8. FIG.

FIG. 10 is a plan view of the same.

FIG. 11 is a plan view showing a state of a steering operation by the traveling operation lever 8.

FIG. 12 is a diagram showing a relationship with turning of the crawler traveling device.

13 is a plan view of the elevating lever 9. FIG.

FIG. 14 is a perspective view of a lift switch 11.

[Explanation of symbols]

 X Traveling carriage Y Workbench S Lifting link K1 Upper operating box K2 Lower operating box 1 Crawler traveling device 2 DC motor 4 Controller 8 Traveling operating lever 9 Elevating lever 10 Warning lamp 11 Elevating switch 14 Speed operating angle potentiometer 15 Steering operating angle potentiometer 16 up switch 17 down switch

Claims (2)

[Claims] 1. A structure in which an alarm lamp for displaying an abnormality corresponding to each occurrence of an abnormality in a plurality of locations in the vehicle is arranged on an operation panel portion of the vehicle, and an abnormality in each location corresponding to each alarm lamp is detected. An alarm device for a vehicle, which displays different abnormalities by sequentially flashing alarm lamps arranged in a row so as to flow in one direction. 2. The alarm device for a vehicle according to claim 1, wherein when the types of abnormality are different, the flow direction of blinking of the alarm lamp is made different.