JPS6299260A - Crossing-bar breaking detector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a blocking rod used at entrances and exits of railroad crossings, unmanned parking lots, etc., and relates to a breakage detection device for the blocking rod.

[Conventional technology]

Generally, barrier bars are provided at the entrances and exits of railroad crossings, unmanned parking lots, etc. 1, and vehicles are allowed to pass and stop by opening and closing these bars.

The barrier bars at railroad crossings can break due to collisions caused by vehicles forcing their way through or due to driving errors.

These days, most railroad crossings are unmanned, and if they are left broken under such circumstances, they will not only hinder traffic, but also pose a major safety problem.

[Problem that the invention seeks to solve]

Since the conventional shutoff bar is not equipped with a breakage detection device, the above-mentioned problems could not be solved.

[Summary of the invention]

In order to solve the above problems, the device of the present invention has an insulating rod body 1.
A conductor 2 is provided over almost the entire length of the conductor 2, and an insulator 3 is attached to this conductor 2.
A series circuit of a signal detection element 5 and a power source 6 is connected to both ends of the conductor 2 of the cutoff rod 4.
The signal detection element 5 is operated by interrupting the current due to the breakage of the conductor 2.

When the cutoff rod 4 is broken due to a vehicle collision and the conductor 2 is broken, the current flowing through the conductor 2 and the signal detection element 5 is cut off and the signal detection element 5 is activated, thereby causing the cutoff rod 4 to break. It is possible to detect that the After detection, promptly repair the shutoff rod.

All you have to do is exchange.

[Detailed description of the invention]

Fig. 1 is a connection diagram showing the configuration of one embodiment of the device of the present invention, Fig. 2 is a perspective view showing an example of the cutoff bar in the present invention, and Fig. 3
The figures are mm-m cotton-like cross-sectional views of Figure 2, Figures 4 (A) and (B).
FIG. 2 is an operational diagram of the device of the present invention.

First, its configuration will be explained.

In Fig. 2, m electric body 2 is applied to almost the entire length of the surface of insulating rod l.
is provided. The conductor 2 is an insulating rod 1 as shown in the figure.
axially conductive parts 2a and 2b provided over almost the entire length on axially symmetrical surface parts with respect to the axis;
Provided on the circumferential surface portion of the free end portion over approximately half the circumference 7
It is preferable to configure the conductive parts 2a and 2b in the direction of both wheels with the conductive part 2c in the circumferential direction which conducts electrically with the conductive parts 2a and 2b, because this ensures reliable detection of breakage and also makes it advantageous to draw out the lead wire from both ends of the conductor 2.

The conductor 2 is a conductive paint mixed with metal powder.

Similarly, conductive resin films, metal foils such as aluminum, copper, etc. can be used, and these can be coated as appropriate.

It can be provided by printing, gluing, mounting members, etc.

The outer circumferential surface of the insulating rod body 1 on which the conductor 2 is provided is insulated and protected with an insulator 3 such as a synthetic resin film such as polyethylene terephthalate, thereby forming a cutoff rod 4. The surface of the insulator 3 may be directly marked with a striped pattern to clearly indicate that it is a cut-off bar, but the surface of the insulator 3 may also be coated with an exterior material having such a striped pattern. Reference numeral 7 denotes a support portion that supports the base end side of the blocking rod 4 so as to be openable and closable.

Lead wire extraction electrodes 8a, 8b are inserted between both ends of the conductor 2 (ends of the conductive portions 2a, 2b) and the insulator 3, as shown in the third figure, and lead wires 9a, 8b are inserted into these.
9b is connected, and the outer periphery of the proximal end side of the blocking rod 4 is tightened with a metal band 10.

As shown in the first diagram, a signal detection element, for example, a series circuit of a coil of a relay 5 and a power source 6 is connected to both ends of the conductor 2 of the cutoff rod 4 through lead wires 9a and 9b. When the relay 5 is used as a signal detection element, when the current is cut off due to the breakage of the conductor 2 as shown in FIG.
The circuit shown in A) is deenergized by shifting to the circuit shown in FIG. 4(B), and the breakage is detected by closing the contact.

11 is a lamp that lights up when one contact of the relay 5 is closed; 12 is a buzzer that also sounds when another contact is closed; 1
3 is a transmitter, such as an FM transmitter, which is activated by closing another contact and transmits a signal.

14 is an FM receiver installed in a nearby station, inspection area, or parking lot management room, and 15 and 16 are these FM receivers.
These are a lamp that lights up and a buzzer that sounds based on the output of the receiver 14.

Next, its effect will be explained.

Under normal conditions, when the conductor 2 of the cutoff rod 4 is not broken, current flows through the conductor 2 and the coil of the relay 5 from the power source 6, the relay 5 is energized and its contacts are open, and the lamp 11
is off, and the buzzer 12 and FM transmitter 13 are inactive.

When the cutoff rod 4 breaks due to a vehicle collision and the conductor 2 is broken, the current flowing through the conductor 2 and the coil of the relay 5 is AIQed, the relay 5 is deenergized, and its contacts are closed. Therefore, the lamp 11 lights up, the buzzer 12 sounds, and the FM transmitter 13 is activated, thereby transmitting a signal.

The transmitted signal is received by the FM receiver 14, and its output lights up the lamp 15 and sounds the buzzer 16.

This makes it possible to know that the blocking rod 4 is broken. Thereafter, by promptly repairing or replacing the blocking rod 4, smooth passage of pedestrians and vehicles can be restored, contributing to traffic safety.

In the present invention, the signal detection element 5 is not limited to a relay, but a transistor, an IC element, or another semiconductor element can be used, and the signal transmission may also be performed by wire instead of wirelessly.

That is, according to the present invention, the conductor 2 is provided along almost the entire length of the insulating rod body 1, the insulator 3 is applied to the conductor 2 to constitute the interrupter rod 4, and both ends of the conductor 2 of the interrupter rod 4 are In this case, a series circuit of the signal detection element 5 and the power supply 6 is connected, and the signal detection element 5 is operated by interrupting the current due to the breakage of the conductor 2, so that the cutoff rod 4 is broken and the conductor 2 is broken. In this case, the signal detection element 5 is activated immediately, and it is possible to detect that the blocking rod 4 is broken, so that the blocking rod 4 can be promptly repaired or replaced.

It is possible to restore smooth vehicle traffic and contribute to traffic safety.

[Brief explanation of drawings]

Fig. 1 is a connection diagram showing the configuration of one embodiment of the device of the present invention, Fig. 2 is a perspective view showing an example of the cutoff bar in the present invention, and Fig. 3
The figure is a mm-m cotton-like cross-sectional view of Figure 2, Figure 4 (A), (
B) is an operational diagram of the device of the present invention, where (A) is when the cutoff rod is normal and (B) is when the conductor is broken. 1...Insulating rod body, 2...Conductor, 3.
... Insulator, 4 ... Cutoff rod, 5 ...
...Signal detection element, 6...Power supply. Jun 3rd V

Claims (1)

[Claims] A conductor is provided over almost the entire length of the insulating rod body, an insulator is applied to this conductor to form a cutoff rod, and a series circuit of a signal detection element and a power source is connected to both ends of the conductor of this cutoff rod, and the above-mentioned A breakage bar detection device that activates a signal detection element by interrupting current due to breakage of a conductor.