JP3682636B2 - Railroad vehicle safety equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a safety device for a track-and-rail vehicle capable of traveling on a road and a track (railway rail).
[0002]
[Prior art]
The track-and-rail vehicle is configured based on a truck, and has tire wheels (road driving wheels) at four positions on the front, rear, left and right sides of the vehicle body. Further, iron wheels (orbital running wheels) are attached to four locations on the front, rear, left, and right sides of the vehicle body so as to be extended downward and retracted upward. On the vehicle body, for example, a working device such as an aerial work device is provided.
[0003]
The track-and-rail vehicle configured as described above can run on the track by driving the iron wheel by projecting the iron wheel downward, supporting the vehicle body on the track, and driving the iron wheel. In addition, when the iron wheel is extended, there is a case where the rear tire is brought into contact with the track and the tire is driven to run the vehicle body. To drive the iron wheel or tire, a traveling operation device is provided in the cabin in front of the vehicle body to move the tracked vehicle on the track at high speed, and the operator operates the traveling operation device in the cabin. This makes it possible to drive the vehicle body at high speed .
[0004]
By the way, such railroad vehicles are provided with an aerial work device on the vehicle body, and this aerial work device includes a work table on which an operator gets on and an elevating device that can move the work table upward and downward. Consists of. The work table is provided with an operation device, and an operator who is on the work table operates the operation device to enable the lifting device to move up and down. In addition, an operating device is provided on the workbench to move the railroad vehicle on the track at a low speed, and an operator on the workbench can operate the vehicle at a low speed by operating this operating device. It has become.
[0005]
[Problems to be solved by the invention]
However, in such a railway vehicle, when the traveling operation is performed in the cabin, the work table or the lifting device is in a raised state, or another worker is on the work table at a high speed. When traveling, there is a problem in that there is a risk that the work table or the lifting device may interfere with surrounding structures such as a utility pole, or the operator who gets on the work table may be shaken off.
[0006]
The present invention has been made in view of such problems, and the track is used when the work table or the lifting device is not stored, or when the operator is on the work table. An object of the present invention is to provide a safety device for a track-rail vehicle that can prevent high-speed traveling.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, the safety device for a track-and-rail vehicle according to the present invention includes road traveling wheels (for example, tire wheels 3 in the embodiment) and track traveling wheels (for example, iron wheels in the embodiments ) on the front, rear, left and right sides of the vehicle body. 4) , a lifting device (for example, the boom 12 in the embodiment) that can be lifted up and down is provided on the vehicle body, a work table is attached to the upper end of the lifting device, and the lifting device is moved up and down to move the work table to the vehicle body. A traveling operation means for driving the track traveling wheel is provided in a cabin provided in front of the vehicle body , and at least one of the lifting operation of the lifting device and the driving operation of the track traveling wheel is provided on the work table . Storage detection means for detecting that at least one of the work table and the lifting device is not in the storage position, which is used in a rail vehicle provided with an operation device that is operated by electricity to perform the operation A power switch for turning on and off the power supply of the operating device, and a power detection means for detecting that the power of the operating device is being input by the power switch, at least one of the detection signals of the storage detecting means and the power detecting means, work When the platform or the lifting device is not in the retracted position, or when the power of the operation device is turned on, the vehicle is provided with travel restriction means for restricting driving of the track traveling wheels by the travel control means in the cabin.
[0008]
Moreover, the safety device for a track-and-rail vehicle of the present invention is provided with road traveling wheels (for example, tire wheels 3 in the embodiment) and track traveling wheels (for example, iron wheels 4 in the embodiments) on the front, rear, left and right sides of the vehicle body, respectively. An elevating device (for example, the boom 12 in the embodiment) that can be raised and lowered upward is provided, a work table is attached to the upper end of the elevating device, and the elevating device is moved up and down so that the work table can be raised and lowered relative to the vehicle body. In the cabin provided in front of the vehicle body, a traveling operation means for driving the road traveling wheel is provided, and the work table is operated by electricity for performing at least one of the lifting operation of the lifting device and the driving operation of the road traveling wheel. also used in the road-rail vehicle provided with an operating device for a storage detecting means for at least one of the working table and the lifting device detects absence in the retracted position, the operating device Detection and power switch for switching on and off the power, and power detection means for detecting that the power of the operating device is being input by the power switch, to perform a driving operation of a road road wheels according to the running operation means in the cabin According to the traveling operation detecting means, the detection signal of at least one of the storage detecting means and the power detecting means, and the detection signal of the traveling operation detecting means , the work table or the lifting device is not in the retracted position, or the operating device is turned on. And an alarm device that is activated when a driving operation of the road driving wheel is performed by the driving operation means . This alarm device is configured by at least one of a buzzer that issues an alarm to an operator and a restriction device that restricts driving of road traveling wheels by traveling operation means in a cabin for traveling on a track.
[0009]
In these railroad vehicle safety devices, when the platform or the lifting device is not in the retracted position, or when the operating device of the lifting device provided on the platform is not turned on, the track It is possible to prevent the above running operation.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 3, the track-and-rail vehicle 1 equipped with the safety device of the present invention is configured with a truck as a base, and tire wheels (road driving wheels) 3 attached at four locations on the front, rear, left and right of the vehicle body 2. Can drive on the road. Furthermore, at four locations on the front and rear, left and right of the vehicle body 2, iron wheels (orbital wheels) 4 are rotatably attached to iron wheel support members 4 a that are supported by the vehicle body 2 so as to be swingable in the vertical direction.
[0011]
The iron ring support member 4a is oscillated by expansion and contraction of the hydraulic cylinder 5 for storing and extending the iron ring. By oscillating the iron ring support member 4a, the iron ring 4 is extended downward or upward. It can be stored. The track-and-rail vehicle 1 places the vehicle body 2 on the rail R with the iron wheel 4 overhanging, drives the iron wheel 4 by an iron wheel driving hydraulic motor (hydraulic motor) (not shown), and automatically moves the rail R on the rail R. It is possible to run. The cabin 6 in front of the vehicle body 2 is provided with a travel operation device 7 that drives and controls the iron wheel 4, and an operator who has boarded the cabin 6 operates the travel operation device 7 to drive the iron wheel 4. The vehicle body 2 can travel on the rail R.
[0012]
On the other hand, an aerial work device 10 is provided on the vehicle body 2. The aerial work device 10 includes a swivel base 11 that is attached to the vehicle body 2 so as to be capable of horizontal swiveling, and a boom (not shown) that is attached to the upper part of the swivel base 11 so as to be able to undulate and telescope. (Elevating device) 12 and an operator boarding work bench 13 attached to the tip of the boom 12.
[0013]
The work table 13 is provided with an operation device 8 such as a joystick for operating the operation of the boom 12. An operator who has boarded the work table 13 operates the operation device 8 to operate the boom 12, and It is possible to move the base 13 to an arbitrary position.
The operating device 8 is controlled by electricity, and a battery 9 is provided on the work table 13 as a power source for operating the operating device 8. The operation device 8 is provided with a power switch 14. When the aerial work device 10 is not used, the operator turns off the power switch 14 to suppress the consumption of the battery 9.
[0014]
In the railway vehicle 1 configured as described above, when the work or inspection of railway facilities such as a stretched line or a trolley line on the rail R is performed using the aerial work device 10, the vehicle is boarded on the work table 13. The worker who has turned on the power switch 14 of the operation device 8 operates the operation device 8 to move the work table 13 to a desired height by performing operations such as turning, raising and lowering and extending the boom 12. An operator who has boarded the railway works on the railway facilities such as a stretched line and a trolley line on the rail vehicle 1.
[0015]
When the work is completed and the railcar 1 is moved on the track, the operator moves the boom 12 to a predetermined storage position (on the boom rest 20 provided on the vehicle body 2), and then turns on the power switch of the operating device 8. It is possible to travel on the track by turning 14 off and getting off the work table 13 and boarding in the cabin 6 and operating the traveling operation device 7 to drive the iron wheel 4.
[0016]
In the track-and-rail vehicle 1 as described above, when the boom 12 is not stored in a predetermined storage position or when an operator is on the work table 13, the vehicle does not travel on the track. Therefore, a safety device according to the present invention is provided.
[0017]
The structure of this safety device is shown in FIG.
A storage detection means 15 for detecting that the boom 12 is not in the storage position is provided in the boom rest 20 provided on the vehicle body 2, and a signal is output when the boom 12 is not stored on the boom rest 20 provided on the vehicle body 2. Occur. Further, a power detection means 16 for detecting that the power switch 14 of the operating device 8 on the work table 13 is ON is provided in the vicinity of the power switch 14, and the power switch 14 of the operating device 8 on the work table 13 is provided. A signal is generated when is turned on.
[0018]
Here, the vehicle body 2 is provided with a travel restricting means 17 that restricts the driving of the iron wheel 4. The travel restricting means 17 is, for example, a valve that shuts off hydraulic oil to a hydraulic motor that drives the iron wheel 4, Or it is comprised from the relay which interrupts | blocks the drive signal which drives the iron wheel 4 electrically. The travel restricting means 17 restricts the driving of the iron wheel 4 by the detection signal of at least one of the storage detecting means 15 and the power supply detecting means 16.
[0019]
This safety device regulates the driving of the iron wheel 4 when the boom 12 is not in the retracted position or when the power switch 14 of the operating device 8 on the work table 13 is turned on. The operation can be prevented.
[0020]
Here, it is detected that the power supply of the operation device 8 for operating the operation of the boom 12 is turned on as the power supply detection means 16, but there is an operation device for driving the iron wheel 4 or the like on the work table 13. It may be detected that the power is turned on.
[0021]
As another example, when the track-and-rail vehicle 1 travels on a track, the steel wheels 4 are not driven by a hydraulic motor or the like, but the rear tire wheels 3 are pressed on the track to drive these tire wheels 3. Thus, the safety device as shown in FIG. 2 may be used for the track-and-rail vehicle 1 that can travel on the track.
[0022]
The configuration of the safety device shown in FIG. 2 includes a storage detection unit 15 that detects that the boom 12 is not in the storage position, and a power source that detects that the power switch 14 of the operation device 8 on the work table 13 is ON. It comprises a detection means 16, a travel operation detection means 18 that detects that a travel operation is performed in the cabin 6, and an alarm device 19 such as a buzzer that issues an alarm to the worker.
[0023]
The traveling operation detection means 18 detects that the operator has operated the traveling operation device 7 in the cabin 6 to drive the tire wheel 3 and generates a signal.
[0024]
The alarm device 19 is operated by the detection signal of at least one of the storage detection means 15 and the power supply detection means 16 and the traveling operation detection means 18. The alarm device 19 is a buzzer that is provided in the cabin 6 and issues a warning to the worker who has performed the traveling operation. The worker stops the traveling operation and stops traveling by hearing this alarm. Further, the alarm device 19 may not only warn the worker but also restrict direct travel, such as stopping the engine that is the driving source of the travel operation by stopping the supply of fuel.
[0025]
In addition, the boom 12 type aerial work apparatus 10 has been described as the aerial work apparatus 10 of the track-and-rail vehicle 1 so far, but it can be similarly applied to a vertical work vehicle such as a scissor type. In this case, the storage detection means 15 of the lifting device may detect that the lifting device is moved and the work table 13 is positioned at the lowest position.
[0026]
【The invention's effect】
As described above, in the safety device for a railway vehicle according to the present invention, when the lifting device is not in the retracted state, or when an operator is on the work table, that is, the power supply of the operation device provided on the work table. When either is on, high-speed running operation on the track can be prevented, and the lifting device can interfere with other structures on the track or board on the work table. It is possible to prevent the danger that the worker who falls is falling due to vibration of traveling or the like.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a safety device for a track-and-rail vehicle according to the present invention.
FIG. 2 is a block diagram showing a second configuration of the safety device for a railroad vehicle of the present invention.
FIG. 3 is a side view showing a configuration of a track-rail vehicle including the safety device of the present invention.
[Explanation of symbols]
1 Railroad vehicle 2 Car body 3 Tire wheels (wheels for road driving)
4 Iron wheels (wheels for track running)
6 Cabin 8 Operating device 12 Boom (elevating device)
13 Work table 15 Storage detection means 16 Power supply detection means 17 Travel restriction means 18 Travel operation detection means 19 Alarm device

Claims (2)

Road traveling wheels and track traveling wheels are provided on the front, rear, left and right sides of the vehicle body , a lifting device capable of moving up and down is provided on the vehicle body, a work table is attached to the upper end of the lifting device, and the lifting device is moved up and down. The work table can be moved up and down with respect to the vehicle body , travel operation means for driving the track traveling wheel is provided in a cabin provided in front of the vehicle body , and the lift operation of the lift device is provided on the work table. And a safety device for an orbital vehicle provided with an operating device that is operated by electricity to perform at least one of the driving operations of the orbital running wheel,
Storage detecting means for detecting that at least one of the work table and the lifting device is not in a storage position;
A power switch for turning on and off the operating device;
A power detection means for detecting that the power supply of the operating device is being input by said power switch,
The detection signal of at least one of the storage detection means and the power supply detection means indicates that the work table or the lifting device is not in the storage position, or when the operation device is powered on, A railroad vehicle safety device comprising travel regulation means for regulating driving of the track running wheel by the travel control means . Road traveling wheels and track traveling wheels are provided on the front, rear, left and right sides of the vehicle body, a lifting device that can be lifted up and down is provided on the vehicle body, a work table is attached to the upper end of the lifting device, and the lifting device is moved up and down. Thus, the work table can be moved up and down with respect to the vehicle body, a traveling operation means for driving the road traveling wheel is provided in a cabin provided in front of the vehicle body, and the lifting device is moved up and down on the work table. In a safety device for a railway vehicle provided with an operation device that is operated by electricity to perform at least one of operation and driving operation of the road traveling wheel,
Storage detecting means for detecting that at least one of the work table and the lifting device is not in a storage position;
A power switch for turning on and off the operating device;
A power detection means for detecting that the power supply of the operating device is being input by said power switch,
A traveling operation detecting means for detecting that the driving operation of the road traveling wheel by the traveling operation means in the cabin;
According to the detection signal of at least one of the storage detection means and the power supply detection means and the detection signal of the traveling operation detection means, the work table or the lifting device is not in the storage position, or the operation device is turned on. An alarm device that operates when the driving operation of the road driving wheel is performed by the driving operation means ,
The alarm device includes at least one of a buzzer that issues an alarm to an operator and a restriction device that restricts driving of the road traveling wheel by the traveling operation means in the cabin for traveling on a track. A safety device for a railway vehicle.

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