JP3638459B2 - Red light operation control device for railroad work vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a red light operation control device for a railroad work vehicle, and more specifically, a red light operation control device for a railroad work vehicle that can travel on roads and rails and has a red light at the rear of the vehicle. About.
[0002]
[Prior art]
A track-railing vehicle, which is an example of a track-and-rail vehicle, is provided on a vehicle body between a front wheel and a rear wheel for traveling on a road provided at the front and rear of a vehicle body, and between a front wheel and a rear wheel, and a vehicle behind the rear wheel. It has a track traveling wheel used when traveling, a brake light that is turned on when the vehicle is braked, and a taillight that is turned on when marking the rear part of the vehicle body. When this track-and-rail work vehicle travels on a track, the front and rear wheels are levitated from the track, and the track-traveling wheel is brought into contact with the track to rotate. Alternatively, the front wheel or the rear wheel that is the driving wheel is brought into contact with the track so that the front wheel or the rear wheel that is the driven wheel is lifted from the track, and the track running wheel is brought into contact with the track. Further, in order to stop the traveling track-and-rail work vehicle, the rotation of the track traveling wheel is stopped, or the rotation of the front wheel or the rear wheel which is the track traveling wheel and the driving wheel is stopped. At this time, it is necessary to keep the taillight and the brake light off. This is because if a taillight or a brake light of an orbital work vehicle is lit on the track, it may be mistaken for a red signal of a railway traffic light, which may hinder the operation of other railway vehicles.
[0003]
Therefore, in order to prevent the traffic light from being mistaken for a red signal, as shown in FIG. 4, a red light operation control device 80 for restricting the lighting of a brake light and a taillight of an orbital work vehicle on a track is proposed. Has been. As shown in the figure, the red light operation control device 80 includes a pair of brake lights 55 and a taillight 57 provided at the rear of the vehicle body, a battery 59 for supplying electric power to the brake lights 55 and the taillights 57, and braking. One end between the brake light line 81 that electrically connects the lamp 55 and the battery 59, the tail light line 83 that electrically connects the tail light 57 and the battery 59, and the brake light line 81 between the battery 59 and the brake light 55. And a bypass line 85 that bypasses the brake light 55 and the taillight 57 and is grounded at the other end. On the brake light line 81, a first switch portion 87a of the relay 87 from the brake light 55 side and a brake light switch 65 for electrically connecting or disconnecting the first switch portion 87a and the battery 59 are provided. .
[0004]
The brake light switch 65 is interlocked with the brake pedal 67. When the brake pedal 67 is depressed, the brake light switch 65 is connected, and when the brake pedal 67 is released, the brake light switch 65 is cut off. On the tail lamp line 83, a second switch section 87b of the relay 87 from the tail lamp 57 side and a tail lamp switch 69 for electrically connecting or disconnecting the second switch section 87b and the battery 59 are provided. The tail light switch 69 is connected or disconnected by the driver's operation.
[0005]
From the downstream side of the bypass line 85, when the exciter 87c of the relay 87 and the track running wheel are in contact with the rail, the power of the battery 59 is supplied to the exciter 87c, and the track running wheel is stored in the vehicle body. When the track running wheel overhanging switch 89 (hereinafter referred to as the “overhanging switch 89”) that cuts off the battery power in the excitation portion 87c and the red light operation control device 80 are used. And a key switch 91 to be connected.
[0006]
Using the red light operation control device 80 to stop the track work vehicle traveling on the track is performed by connecting the key switch 91 and depressing the brake pedal 67. When the brake pedal 67 is depressed, the brake light switch 65 is in the connected state, and since the orbital running wheel is overhanging, the overhanging switch 89 is also in the connected state. Is supplied, and the first switch portion 87a and the second switch portion 87b of the relay 87 are cut off. For this reason, the brake light line 81 is interrupted and the brake light 55 is always turned off. Even when the taillight switch 69 is connected, the taillight 57 is also turned off because the second switch portion 87b is cut off. For this reason, it can prevent beforehand that the driver of another train misidentifies it as a red signal.
[0007]
[Problems to be solved by the invention]
However, if the driver forgets to turn on the key switch 91 and depresses the brake pedal 67 or connects the taillight switch 69 of the track work vehicle on the track, the electric power from the battery 59 is applied to the excitation portion 87c of the relay 87. Since it is not supplied, the first switch portion 87a and the second switch portion 87b of the relay 87 are connected, and the brake lamp 55 and the tail lamp 57 are lit. For this reason, the problem that the driver of another train may misidentify as a red signal arises.
[0008]
The present invention has been made in view of such a problem, and an object of the present invention is to provide a red light operation control device that always turns off a brake light and a taillight of a railroad work vehicle on a track.
[0009]
[Means for Solving the Problems]
In order to solve the above-described problems, the red light operation control device for a railroad work vehicle according to the present invention includes a plurality of track running wheels (for example, the iron wheel 33 in the embodiment) arranged on the vehicle body, and is capable of running on a track. A red light operation control device for a vehicle, which includes a red light (for example, a brake light 55 and a tail light 57 in the embodiment) provided at the rear part of the vehicle body, and a power source (for example, a power supply for supplying power to the red light provided on the vehicle body) When the battery 59) and the track running wheel in the embodiment are in a state of protruding from the vehicle body, the electrical connection between the red light and the power source is cut off, and the track running wheel is stored in the vehicle body. A first switch (for example, the first limit switch 51 in the embodiment) that makes it possible to supply power from the power source to the red lamp, and a second switch that electrically connects or disconnects the power source and the first switch ( For example, the brake light switch 65) in the embodiment is configured, and even when the second switch is connected in a state where the track running wheel is overhanging, the first switch is cut off, and the red light is It is preferable to turn off the light.
[0010]
Even if the second switch is connected when the track running wheel is overhanging, the first switch is cut off, so that the power of the power source is not supplied to the red lamp and the red lamp is turned off.
[0011]
The red lamp is preferably a tail lamp that is turned on when marking the rear part of the vehicle body and a brake lamp that is turned on during traveling braking. The second switch has a function of electrically connecting or disconnecting the power source and the first switch. For example, the second switch may be interlocked with the operation of the brake pedal. In this case, the second switch may be connected when the brake pedal is depressed, and the second switch may be blocked when the brake pedal is released.
[0012]
The track running wheel is rotatably held at the tip of a swing member (for example, the iron ring holding frame 31 in the embodiment) provided on the front and rear sides of the vehicle body so as to be swingable in the vertical direction. Either one of the vehicle bodies has an operating piece, and the first switch is a swing member or a limit switch provided on the other side of the vehicle body, and the swing member swings upward to bring the track running wheel into the retracted state. Then, the tip of the limit switch comes into contact with the operating piece, the limit switch is turned on and the red light and the power source are electrically connected, the swinging member swings downward, and the track running wheel overhangs. In this state, it is preferable that the tip of the limit switch and the operating piece are separated from each other and the limit switch is turned off to cut off the electrical connection between the red light and the power source.
[0013]
When the swinging member swings upward and the orbital running wheel is retracted, the limit switch is turned on and the red light and the power supply are electrically connected. Since the light can be lit, the driver of the following vehicle can be alerted by turning on the red light. In addition, when the swinging member swings downward and the orbital running wheel is overhanging, the limit switch is turned off and the electrical connection between the red light and the power source is cut off. Since the red light is always kept off, it is possible to prevent a possibility that the operation of other railway vehicles will be hindered by misidentifying it as a red signal of a railway traffic light.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS. This embodiment shows an aspect of an orbital work vehicle in which a road traveling tire is levitated from above a rail when traveling on a rail, and an iron wheel as a track traveling wheel is brought into contact with the track to rotate. First, before explaining the red light operation control device of the present invention, a railroad work vehicle equipped with the red light operation control device will be described. As shown in FIG. 1, the track-and-rail work vehicle 1 is configured based on a truck traveling on a road, and has a driving cabin 5 on the front side of the vehicle body 3 and tires 7 on both front and rear sides of the vehicle body 3. doing.
[0015]
Outer trigger jacks 9 are provided on the front and rear side walls of the vehicle body 3 to stably support the vehicle body 3 during work, and a center jack 11 is provided at the center lower part of the vehicle body 3 to lift the track-work vehicle 1 itself. It has been. A swivel base 13 that protrudes upward and freely turns is provided at the front upper part of the vehicle body 3, and a boom 15 that can move up and down and extend and retract is provided above the turn base 13. A work table 17 is provided at the tip of the boom 15. Support frames 19 projecting downward from the vehicle body 3 are provided at the front and rear lower portions of the vehicle body 3. The front and rear support frames 19 are provided with a track traveling device 30 used when traveling on the rail R.
[0016]
2 shows the track traveling device 30, FIG. 2A shows a front view of the track traveling device 30, and FIG. 2B shows a right side view of the track traveling device 30. As shown in FIGS. 1A and 1B, the track traveling device 30 includes an iron ring holding frame 31 that is swingable in the vertical direction below the support frame 19, and a lower part of the iron ring holding frame 31. It has a disk-shaped iron wheel 33 that is rotatably provided, and a lifting cylinder 35 that swings and moves the iron wheel holding frame 31 in the vertical direction. The iron ring holding frame 31 has an inverted U shape, and its base is pivotally connected to the lower part of the support frame 19. A pivot portion 37 is provided at the base portion of the iron wheel holding frame 31 so as to pivotably pivot the rod side end portion of the elevating cylinder 35. A columnar cam 43 is provided at the tip of the holding member 41 that is substantially coaxial with the pivoting central axis 39 of the iron wheel holding frame 31 and fixed to the side of the iron wheel holding frame 31.
[0017]
Above the cam 43, a first limit switch 51 and a second limit switch 53 (hereinafter referred to as “limit switches 51 and 53”) arranged with a predetermined gap in the width direction of the vehicle body 3 are described. These limit switches 51 and 53 are provided with switch portions 51a and 53a whose tip portions are swingable in the vertical direction, and main body portions 51b and 53b that hold the switch portions 51a and 53a in a swingable manner. And have.
[0018]
The cam 43 has an operating piece 43b that protrudes radially outward on the circumferential surface of the cylindrical main body 43a. The actuating piece 43b has a length of about a quarter of the circumference, and the first limit switch 51 and the second limit switch 51 are in a state where the iron ring holding frame 31 swings downward and the iron ring 33 is projected. The switch portions 51a and 53a of the limit switch 53 are swung in the vertical direction to release the contact state with the operating piece 43b to turn off the limit switches 51 and 53, and the iron wheel 33 is projected. When the iron wheel holding frame 31 is swung upward from the state to bring the iron wheel 33 into the retracted state, the tip portions of the switch portions 51a and 53a of the first limit switch 51 and the second limit switch 53 come into contact with the operating piece 43b. The limit switches 51 and 53 are turned on by swinging in the front direction of the vehicle body 3.
[0019]
A pivot part 37 that protrudes toward the iron wheel 33 is provided on the upper part of the iron ring holding frame 31, and the rod side tip of the lift cylinder 35 is slidably connected to the tip of the pivot part 37. The bottom side end of the frame is pivotally connected to the support frame 19. For this reason, when the elevating cylinder 35 is expanded and contracted, the iron wheel holding frame 31 swings in the vertical direction with respect to the support frame 19, and the iron wheel 33 contacts the rail R or is stored in the vehicle body 3.
[0020]
Next, the red light operation control device will be described. As shown in FIG. 3, the red light operation control device 50 includes a pair of brake lights 55 and a pair of tail lights 57 (hereinafter collectively referred to as “red lights 58”) provided at the rear part of the vehicle body 3 shown in FIG. 1. ), A battery 59 for supplying electric power to the red light 58, a brake light line 61 for electrically connecting the brake light 55 and the battery 59, and a tail light line 63 for electrically connecting the tail light 57 and the battery 59. have. On the brake light line 61, a first limit switch 51 and a brake light switch 65 for electrically connecting or disconnecting the first limit switch 51 and the battery 59 are provided from the brake light 55 side. The brake light switch 65 operates in conjunction with the operation of the brake pedal 67. The brake light switch 65 is connected when the brake pedal 67 is depressed, and the brake light switch 65 is blocked when the brake pedal 67 is released. Has been.
[0021]
On the tail lamp line 63, a second limit switch 53 and a tail lamp switch 69 for electrically connecting or disconnecting the second limit switch 53 and the battery 59 are provided from the tail lamp 57 side. The tail light switch 69 is provided in the driver's seat in the driving cabin 5 shown in FIG. 1, and the tail light switch 69 is connected or cut off by a driver's operation. Although the brake light 55 and the tail lamp 57 described above are provided separately, one brake light 55 and one tail lamp 57 can be configured as one lighting device. That is, one brake lamp 55 and one tail lamp 57 can be built in one lighting device.
[0022]
Next, the operation of the red light operation control device 50 of the present invention will be described with reference to FIGS. First, the track-and-rail work vehicle 1 shown in FIG. 1 travels on the road to a railroad crossing near the work site on the rail R. At this time, the iron wheel 33 is stored in the vehicle body 3 as indicated by a broken line. Therefore, the tip portions of the switch portions 51a and 53a of the first limit switch 51 and the second limit switch 53 shown in FIG. 2 are in contact with the operating piece 43b of the cam 43, and the first limit switch shown in FIG. The switch 51 and the second limit switch 53 are turned on. When the brake 67 of the railroad work vehicle 1 is depressed by moving near the railroad crossing, the brake light switch 65 is connected, the brake light line 61 between the battery 59 and the brake light 55 is connected, and the electric power of the battery 59 is supplied to the brake light. It is supplied to 55 and lights up. For this reason, it is possible to alert the driver of another subsequent vehicle traveling behind the track-and-rail work vehicle 1. When the driver of the railroad work vehicle 1 connects the taillight switch 69, the second limit switch 53 is in the ON state, so that the taillight line 63 between the battery 59 and the taillight 57 is connected and the power of the battery 59 is connected to the taillight 57. Therefore, the driver of the succeeding vehicle behind the railroad work vehicle 1 can recognize the position of the rear portion of the roadway work vehicle 1. Then, the railroad work vehicle 1 stops so as to cross the rail R within the railroad crossing.
[0023]
The track-and-rail work vehicle 1 that has stopped stops the center jack 11 shown in FIG. 1 to extend downward and lifts the vehicle body 3, and then turns around the center jack 11 so that the vehicle body 3 is parallel to the rail R. The iron ring 33 is projected. The steel wheel 33 is projected by the extension operation of the elevating cylinder 35 shown in FIG. That is, when the elevating cylinder 35 is extended, the pivoting portion 37 is swung clockwise, and at the same time, the iron ring holding frame 31 is also swung clockwise, and the rotation center of the iron ring 33 is swung by the iron ring holding frame 33. The extension operation of the elevating cylinder 35 is stopped when it reaches a position substantially vertically below the center. In the state where the overhang of the iron wheel 33 is completed, the switch portions 51a and 53a of the first limit switch 51 and the second limit switch 53 shown in FIG. It is released and becomes OFF state.
[0024]
When the brake 67 shown in FIG. 3 of the track-and-work vehicle 1 is depressed in this state, the brake light switch 65 is connected, but the first limit switch 51 is in the OFF state as shown by the broken line. The brake light line 61 between 55 is electrically disconnected, and the brake light 55 is turned off. Even if the driver connects the taillight switch 69, the second limit switch 53 is in the OFF state as shown by the broken line, so that the taillight line 63 between the battery 59 and the taillight 57 is electrically disconnected. The taillight 57 is turned off. That is, in the state where the iron wheel 33 is overhanging, even if the brake 67 is stepped on or the tail light switch 69 is connected, the brake light 55 and the tail light 57 are not turned on and the light-off state is maintained. For this reason, it is possible to prevent a possibility that it may be mistaken for a red signal of a railway traffic signal and hinder the operation of other railway vehicles.
[0025]
The action of the red light operation control device 50 when the brake 67 is operated in order to put the roadway working vehicle 1 traveling on the rail R into the stopped state is the same as that of the above-mentioned stopped roadway working vehicle 1. Since the operation is the same as that when the brake 67 is operated, the description thereof is omitted. Moreover, although the above-mentioned track-and-rail work vehicle 1 lifted all the tires 7 on the rail R upward from the rail R, only the tire which is a driving wheel is contacted on the rail R, and this tire is rotationally driven. The track-and-rail work vehicle 1 traveling on the rail R may be used.
[0026]
【The invention's effect】
As described above, according to the red light operation control device for a track work vehicle according to the present invention, even if the second switch is connected when the orbital running wheel is extended, the first switch is cut off. Therefore, the red light can be always turned off, and it is possible to prevent a possibility that the operation of other railway vehicles may be hindered by being mistaken for a red signal of a railway traffic signal. Compared to the conventional technology in which the brake lights and taillights of the track work vehicle on the track turn on when the key switch is forgotten, the key switch is not required and the brake lights and tail lights of the track work vehicle on the track are not required. Is always kept in an extinguished state, so that hindrance to the operation of the railway vehicle can be reliably prevented.
[0027]
In addition, the track running wheel is rotatably held at the front end of a swinging member that is swingable in the vertical direction on the front and rear sides of the vehicle body, and an operating piece is provided on either the swinging member or the vehicle body. And the first switch is a limit switch provided on the other side of the swing member or the vehicle body. When the swing member swings upward to place the track running wheel in the retracted state, the tip end of the limit switch and the operating piece And the limit switch is turned on to electrically connect the red light and the power source, and when the swinging member swings downward and the orbital running wheel is overhanging, the tip of the limit switch When the limit switch is turned off and the electrical connection between the red light and the power source is cut off when the working piece is separated, the limit switch is turned off when the track running wheel is extended. In orbit It can always be in the off state the lighting of that 軌陸 work vehicle brake light and tail light.
[0028]
In addition, when the red light is a taillight that lights up when marking the rear part of the vehicle body and a brake light that lights up during running braking, it controls the turn-off operation of the taillight that is provided at the rear part of the vehicle body and emits red light. be able to.
[Brief description of the drawings]
FIG. 1 is a front view of a railroad work vehicle equipped with a red light operation control device according to an embodiment of the present invention.
FIG. 2 shows a track traveling device for an orbital work vehicle according to an embodiment of the present invention. FIG. 2 (a) is a front view of the track traveling device, and FIG. 2 (b) is a side view of the track traveling device. is there.
FIG. 3 is a circuit diagram of a red light operation control device for a railroad work vehicle according to an embodiment of the present invention.
FIG. 4 is a circuit diagram of a red light operation control device for a conventional track-and-rail work vehicle.
[Explanation of symbols]
1 Railroad work vehicle 3 Car body 31 Iron wheel holding frame (swing member)
33 Iron Wheel (Railway Wheel)
43b Actuating piece 50 Red light operation control device 51 First limit switch (first switch)
55 Brake light (red light)
57 Taillight (red light)
58 Red light 59 Battery (power supply)
65 Brake light switch (second switch)
R rail (track)

Claims (3)

A red light operation control device for an orbital work vehicle in which a plurality of orbital wheels are disposed on a vehicle body and capable of orbital travel,
A red light provided at the rear of the vehicle body;
A power source provided on the vehicle body for supplying power to the red light;
The electrical connection between the red light and the power source is cut off when the track running wheel is projected from the vehicle body, and the power source is turned on when the track running wheel is stored in the vehicle body. A first switch that enables power from the power source to be supplied to the red light;
A second switch that electrically connects or disconnects between the power source and the first switch,
Even if the second switch is connected when the orbital running wheel is overhanging, the first switch is cut off and the red light is turned off. Light operation control device. The track running wheel is rotatably held at the front end portion of a swing member provided swingably in the vertical direction on the front and rear sides of the vehicle body, and operates on either the swing member or the vehicle body. The first switch is a limit switch provided on the swing member or the other of the vehicle body, and the swing member swings upward to bring the orbital travel wheel into a retracted state. The tip of the limit switch comes into contact with the operating piece, the limit switch is turned on to electrically connect the red light and the power source, and the swing member swings downward to move the track. When the traveling wheel is in an overhanging state, the tip of the limit switch and the operating piece are separated from each other, and the limit switch is turned off to cut off the electrical connection between the red light and the power source. Do Motomeko 1 red lamp operation controller for a 軌陸 work vehicle according. 3. The red light operation control device for a railroad work vehicle according to claim 1, wherein the red light is a tail light that is turned on when marking a rear portion of the vehicle body and a brake light that is turned on during traveling braking.

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