JPH0225823B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rail vehicle cleaning device that automatically cleans the body of a railway vehicle.

[Prior art]

Although single-story cars are used for the bodies of railway cars, development of double-story cars has progressed in recent years, and proposals have been made to use them in conjunction with single-story cars.

[Problem that the invention seeks to solve]

However, when cleaning the body of a two-story vehicle that is connected to a one-story vehicle, if cleaning is performed using conventional cleaning equipment used for single-story vehicles, the entire body of the one-story vehicle cannot be cleaned. Dirt can be uniformly cleaned, but for double-decker vehicles,
There are parts where the brush surface of the cleaning device does not come into contact with the vehicle body, making it impossible to uniformly clean dirt from the entire vehicle body.

This invention has been made in view of the above points, and even when the number of connected two-story vehicles and the arrangement of the vehicles are different, a series of two connected two-story vehicles can be connected.
An object of the present invention is to provide a washing device for a rail vehicle that is capable of washing a story car from the dyed head car to the last car, and that can stop the washing device when the washing of the last car is completed. There is.

[Means for solving problems]

To achieve this objective, the rail vehicle cleaning device according to the present invention includes a vehicle detector installed near the vehicle rails and at a height higher than the height of a single-story vehicle and lower than the height of a two-story vehicle. , a wheel detector installed at a wheel height in the vicinity of the vehicle rail and at a distance from the vehicle detector by the distance between the wheels and the end of the double-decker vehicle; and the vehicle detector detects a vehicle. If the wheel detector detects a wheel, a cleaning start signal is output, and if the vehicle detector does not detect a vehicle, the wheel detector detects a wheel. a discriminating circuit that sometimes outputs a cleaning end signal; and a discriminating circuit that outputs a cleaning signal from the time when this discriminating circuit outputs the first cleaning start signal until it outputs the cleaning end signal, and is installed near the vehicle detector. The present invention is characterized in that it includes a drive circuit that operates the two-story washing mechanism to wash the vehicle.

〔Example〕

The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a block diagram showing an example of the circuit configuration of a cleaning device for a rail vehicle according to the present invention. In this figure, 1 is a vehicle detector composed of a light emitter 1a and a light receiver 1b, and this vehicle detector 1 is a two-story building on the vehicle rail as shown in FIGS. 2A and 2B. In the vicinity of the washing machine 2, the height is higher than the height h1 of the single-story vehicles 3 and 4, and the height 2h of the two-story vehicles 5 and 6.
The two-story vehicles 5, 6 are installed at a lower height.
“1” signal (vehicle detection signal S
1), which is sequentially connected to an amplifier 7 for signal inversion amplification, a photocoupler 8 for the purpose of electrically insulating the circuit, and a hysteresis inverter 9 for signal inversion for the purpose of cutting noise in the signal, as shown in Fig. 1. It is supplied to the second input terminal of the discrimination circuit 10 via the serial connection.

Further, 11 is a wheel detector constituted by a proximity switch etc., and this wheel detector 11 is
As shown in FIGS. 2A and 2B, it is provided at a distance of 1 from the vehicle detector 1 portion on the near side in the traveling direction C of the vehicle. Here, single-story vehicles 3 and 4 as vehicles
It is also assumed that the wheels of the two-story vehicles 5 and 6 are arranged at the same pitch with respect to the vehicle.
The distance l is the length from the end of the vehicle to the wheel, and is a fixed value. Hereinafter, the distance l between the wheel and the car end is
It will be explained as follows.

Therefore, when the two-story vehicle 5 (single-story vehicle 4) is traveling, as shown in FIG.
c and 4c pass through the wheel detector 11 section.

In the figure, the configuration is such that the third wheel 5c, 4c is detected from the direction of travel of the vehicle, but it is possible to detect a desired wheel among the wheels arranged at four locations. The car end distance l will be changed. Wheels 3a to 3 of single-story vehicles 3 and 4
d, 4a to 4d and wheels 5 of two-story vehicles 5, 6
Each time a to 5d and 6a to 6d are detected, a "1" signal (wheel detection signal S2) is output, and as shown in FIG. Amplifier 1
2. The signal is supplied to the first input terminal of the discrimination circuit 10 via a photocoupler 13 and a hysteresis inverter 14 in this order. The discrimination circuit 10 has a first input terminal connected to the output terminal of the hysteresis inverter 14 and a second input terminal connected to the output terminal of the hysteresis inverter 9 via the inverter 15 for signal inversion. 1 NAND gate 16 and a second NAND gate 17 whose first input terminal is connected to the hysteresis inverter 14 and whose second input terminal is connected to the output terminal of the hysteresis inverter 9, Its first and second input terminals 10
When “1” signals are input to both a and 10b, the first NAND gate 16 is cut off,
A “0” signal (cleaning start signal S3) is output from the output terminal of the second NAND gate 17, and is supplied to the S terminal of the holding circuit 20. Further, a “1” signal is input to the first input terminal 10a of the discrimination circuit 10.
When a “0” signal is input to the second input terminal 10b, the second NAND gate 17 is cut off, and a “0” signal (cleaning stop signal S4) is output from the output terminal of the first NAND gate 16. and is supplied to the R terminal of the holding circuit 20. The holding circuit 20 has an S-R type flip-flop constituted by two NAND gates 18 and 19, and after being reset, the vehicle detector 1 detects the first double-decker vehicle 5; When the wheel detector 11 detects the wheel 5c of the double-decker vehicle 5, the S terminal of the holding circuit 20 receives a "0" signal (cleaning start signal S3), and the R terminal receives a "1" signal.
Each signal is supplied to the holding circuit 20 to enter a set state, and a "0" signal is output from the F output terminal of the holding circuit 20. This "0" signal is supplied to an amplifier 22 for signal inversion and amplification via a photocoupler 21 for the purpose of electrically insulating the circuit, where it is converted to a "1" signal (cleaning signal S5) and sent to the electromagnetic switch 23. is supplied to turn it on. As a result, the normally open contact 23a of the electromagnetic switch 23 is closed, and power is supplied to the dynamic brake type electric motor 24 via this normally open contact 23a, which operates the rotating brush 25 of the two-story washing machine 2. . Rotating brush 2
As shown in FIG. 2A and FIG.
f, 6f, and the lower end surface 25b is at the height of the lower end portions 5g, 6g of the two-story vehicles 5, 6.
The two-story vehicle 5, 6 is cleaned by the brush provided on the outer circumferential surface of the rotary brush 25, which is provided inside the story washing machine 2.

Similarly, the "0" signal output from the F output terminal of the holding circuit 20 is converted to "1" by the photocoupler 26 and the signal inversion amplification amplifier 27, which are configured similarly to the photocoupler 21 and the signal inversion amplification amplifier 22. ” signal (cleaning signal S5) and turns on the electromagnetic switch 28. As a result, power is supplied to the three-way wash water rapid opening/closing solenoid valve 29 (hereinafter abbreviated as three-way solenoid valve 29) via the normally open contact 28a of this solenoid switch 28. This three-way solenoid valve 2
9 is the inlet port 29a when power is not supplied.
and the first outlet 29b communicate with each other, and when power is supplied, the inlet 29a and the second outlet 29c communicate with each other, and the power is supplied via the normally open contact 28a. When supplied, the pump 31 installed between the three-way solenoid valve 29 and the water source 30 causes the water (washing water) supplied in the direction of arrow A to flow through the three-way solenoid valve 29 to approximately A plurality of nozzles 32 provided at regular intervals within the height h2 of the vehicle body of the two-story vehicle 5, 6.
The liquid is then injected toward the sides of the vehicle bodies of the two-story vehicles 5 and 6.

Further, the holding circuit 20 is configured such that the vehicle detector 1 no longer detects the last two-story vehicle 6 and the wheel detector 11 detects the wheels of the one-story vehicle 4 connected to the rear of the two-story vehicle 6. 4c is detected, a “1” signal is sent to the S terminal of the holding circuit 20, and a “1” signal is sent to the S terminal of the holding circuit 20.
A "0" signal (cleaning stop signal S4) is supplied to each terminal, and the holding circuit 20 changes from the set state to the reset state, and the F of the holding circuit 20 changes from the set state to the reset state.
A “1” signal is output from the output terminal. and,
One side of this “1” signal goes through a photocoupler 21 and becomes “0” at the signal inversion amplification amplifier 22.
The signal (cleaning stop signal S4) is inverted and supplied to the electromagnetic switch 23, and the signal is turned to “0” via the photocoupler 26 in the signal inversion amplification amplifier 27.
The signal (cleaning stop signal S4) is inverted and supplied to the electromagnetic switch 28. As a result, these electromagnetic switches 23 and 28 are turned off, and the electric motor 24 is turned off.
A dynamic brake is applied by the DC power supply to stop it rapidly, and the water flows into the direction of arrow B.
Drainage is carried out in the direction.

Next, the operation of this embodiment configured as described above will be explained with reference to the side views shown in FIGS. 2A and 2B and the waveform diagram shown in FIG. 3.

First, as shown in FIG. 2A, when the single-story vehicle 3 and the two-story vehicles 5 and 6 are traveling in the direction of arrow C, the two-story vehicle 5 passes in front of the vehicle detector 1. Then, the vehicle detector 1 detects this and outputs a "1" signal (vehicle detection signal S1) as shown in FIG.
Almost at the same time as supplying to the input terminal, wheel detector 1
1 detects the wheel 5c of this double-decker vehicle 5 and outputs a "1" signal (wheel detection signal S2) as shown in FIG.
is output and supplied to the first input terminal of the discrimination circuit 10. As a result, the second
A "1" signal as shown in Figure C is supplied from the output terminal to the R terminal of the holding circuit 20, and a "0" signal (cleaning start A signal S3) is output and supplied to the S terminal of the holding circuit 20.

As a result, the holding circuit 20 enters the set state, and a "0" signal is output from the F output terminal of the holding circuit 20, which is then sent to the signal inversion amplification amplifier 22 as a "1" signal (cleaning The signal S5) is inverted and supplied to the electromagnetic switch 23. As a result, the electromagnetic switch 23 is turned on, starting the electric motor 24, and operating the rotating brush 25 of the two-story washing machine 2 installed on the vehicle track. At the same time, a "1" signal (cleaning signal S5), which is the inversion result of the "0" signal obtained by the signal inversion amplifier 27, is supplied to the electromagnetic switch 28, which turns on. , the three-way solenoid valve 28 becomes open and the pump 3
The water (washing water) supplied through 1 is indicated by arrow A.
direction, and is sprayed from the plurality of nozzles 32 toward the bodies of the two-story vehicles 5, 6, and cleaning of the bodies of the two-story vehicles 5, 6 is started.

Next, as shown in FIG. When the vehicle detector 1 no longer detects the last double-decker vehicle 6, the vehicle detector 1 outputs a "0" signal (vehicle detection signal S1) as shown in FIG. This signal is supplied to the second input terminal of the discrimination circuit 10, and when the wheels 4c of the single-story vehicle 4 connected to the rear of the two-story vehicle 6 pass in front of the wheel detector 11,
The wheel detector 11 detects this and outputs a "1" signal (wheel detection signal S2) as shown in FIG. As a result, the discrimination circuit 10 outputs a "0" signal from its second output terminal as shown in FIG. , these are supplied to the R terminal and the S terminal of the holding circuit 20, so the holding circuit 20 is in a reset state, a "1" signal is output from the F output terminal of this holding circuit 20, and the electromagnetic switches 23 and 27 are turned on. Turns off. As a result, the electric motor 24 stops rapidly and the rotating brush 25
At the same time, the three-way solenoid valve 28 is turned off and the water is drained in the direction of arrow B, completing the washing of the bodies of the two-story vehicles 5 and 6.

Furthermore, in the embodiment described above, the discrimination circuit 10
Since hysteresis inverters 9 and 14 are inserted in series on the input side of the circuit to cut out the noise generated on the input side, the noise resistance of the circuit can be increased and the circuit can be made to have fewer malfunctions. Can be done.

Furthermore, in the above-described embodiment, the case where the number of vehicles is four and two two-story vehicles are connected between one-story vehicles has been explained as an example, but the two-story vehicles that are connected are The number may be one or three or more, and even in this case, the same effects as in the above embodiment can be obtained.

〔Effect of the invention〕

As explained above, in the rail vehicle cleaning device according to the present invention, the vehicle detector is installed at a height higher than the height of the one-story vehicle and lower than the height of the two-story vehicle, and the vehicle detector is installed at a height higher than the height of the one-story vehicle, and The vehicle detector is installed at a wheel height at a distance from the vehicle by the distance between the wheel ends of the two-story vehicle, and when the vehicle detector detects a two-story vehicle and the wheel detector detects a wheel, the vehicle is located on the second floor. The double deck cleaning mechanism is operated, and the double deck cleaning mechanism is stopped when the vehicle detector no longer detects a double deck vehicle and the wheel detector detects a wheel. Even if the speed of the approaching vehicles differs, the number of connected two-story vehicles changes, or even if the two-story vehicle is placed somewhere among the one-story vehicles, the two It is possible to uniformly wash the first to the last vehicle of the two-story vehicle, and the two-story washer can be stopped when the last two-story vehicle has been washed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an example of the circuit configuration of a cleaning device for a rail vehicle according to the present invention, FIGS. 2A and 2B are side views for explaining the cleaning operation of a two-story vehicle in this embodiment, FIG. 3 is a diagram showing waveforms of various parts at this time. 1...Vehicle detector, 2...2-story washing machine, 5,
6... Double-decker vehicle, 10... Discrimination circuit, 20...
Holding circuit (drive circuit), 23, 28... Electromagnetic switch (drive circuit).

Claims (1)

[Claims] 1 A vehicle detector installed near the vehicle rails and at a height higher than the height of a single-story vehicle and lower than the height of a two-story vehicle; A wheel detector installed at a wheel height at a position separated by the distance between the wheels and the car ends of a two-story vehicle, and when the vehicle detector is detecting a vehicle, the wheel detector detects the wheel. a determination circuit that outputs a cleaning start signal when the wheel detector detects a wheel, and outputs a cleaning end signal when the wheel detector detects a wheel when the vehicle detector does not detect a vehicle; outputs a cleaning signal from when the first cleaning start signal is output until it outputs a cleaning end signal, and operates a two-story cleaning mechanism provided near the vehicle detector to clean the vehicle. A cleaning device for a rail vehicle, characterized by comprising a drive circuit.