JPH04129319U - Safety device for L-shaped roof opening/closing device of wing vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a safety device for ensuring that the wing of a wing vehicle never opens while the vehicle is running. [Structure] A wing operation circuit A consisting of a relay switch 5, a manual operation switch 3 for opening/closing the wing, and a relay 2' is installed in parallel with a limit switch 4 consisting of a mercury switch, a manual push button switch 1, and a relay. A safety circuit B consisting of 2 is provided. And the mercury switch is turned off while driving.
Since the wing operation circuit is turned off in this state, it is possible to completely prevent the wing from opening during driving.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a safety device for an L-shaped roof opening/closing device of a wing vehicle. It is. More specifically, the L-shaped roof can only be opened and closed up and down when the wing vehicle is stopped. The L-shaped roof opening/closing device of the wing vehicle is designed to never open or close while driving. This is related to safety equipment.

0002

[Conventional technology]

FIG. 3 shows a known wing vehicle. The wing vehicle opens and closes up and down at the center of the ceiling. A pair of left and right roof/side walls 9 (hereinafter referred to as wings) each having an L-shaped cross section are provided. There is. These wings 9 are hydraulic cylinders 1 provided at the top of the front wall 10 and the rear wall 11. It is opened and closed by vertical expansion and contraction of 2. The hydraulic oil to the hydraulic cylinder 12 is It is sent by operating the hydraulic system 13 built into the lower part of the table. Its operation is to open the wing. This is done by turning the closing manual pushbutton switch 14 ON-OFF (Utility Model No. 51-82215) (see issue).

0003 The wing 9 as described above does not operate the push button switch 14 for operating the hydraulic system. If it is, it will not open or close. By the way, while driving, Ring 9 should not have opened even by accident, but due to a combination of coincidences, It cannot be said that there are no such cases. For example, loosening of the electrical circuit due to vibration or damage to the electrical circuit. This is caused by the hydraulic system operating due to the intrusion of rainwater, etc.

0004

[Problem that the idea aims to solve]

The present invention is designed to prevent the wing of a wing vehicle such as the one described above from disappearing while the vehicle is running. This provides a safety device to prevent the pair from opening.

[0005]

[Means to solve the problem]

Relay switch 5, manual operation switch 3 for opening/closing the wing, relay 2', etc. A limit switch 4 consisting of a mercury switch is installed in parallel with a wing operation circuit A consisting of a mercury switch. A safety circuit B consisting of a manual pushbutton switch 1 and a relay 2 is provided.

[0006]

【Example】

This will be explained based on FIG. FIG. 1 shows a circuit according to the invention. As is clear in Figure 1 A safety circuit B is installed in parallel to the opening/closing operation circuit A. 1 is a manual that configures safety circuit B Push button switch (circuit ON switch), 2 and 2' are both relays, 3 is wing opening/closing This is a manual operation switch. 4 uses a known mercury switch as a limit switch. are doing. 5 is a relay switch corresponding to relay 2, and 6 is a power source.

[0007] The mercury switch may be located either inside or outside the hydraulic equipment operating box. , must be protected from damage. Then, in the case of a mercury switch like the one shown in Figure 2, If the lead wire 7 and the mercury 8 contact each other (the head), position it with respect to the direction of travel of the vehicle. It is recommended that the vehicle be placed at a slight angle in the direction of travel of the vehicle.

[0008] As shown in Figure 2, if the mercury switch has lead wire 7 and mercury 8 in contact, the vehicle When it starts running, the contact with the lead wire 7 is broken due to the acceleration, and the virtual line position on the left is changed. Move to the position. Then, relay switch 5 is turned OFF due to the action of relay 2. Even if the manual operation switch 3 in the OFF state is accidentally pressed, However, the wing will not open.

[0009]

[Operation]

When limit switch 4 using a mercury switch is ON (when the vehicle is stopped) When the manual pushbutton switch 3 is pressed to turn it on, the relay switch is activated by the action of relay 2. CH5 is turned ON. Then press the push button switch 3 to open or close the desired wing. If this continues, the motor of the hydraulic system operates and the wing 9 opens or closes.

0010 When the vehicle runs with the wing 9 closed, the mercury 8 of the limit switch 4 As the vehicle moves in the opposite direction to the direction of travel due to acceleration, safety circuit B is turned off. As a result, the relay switch 5 is turned off. In other words, operation circuit A is turned off. Ru. To restore this circuit, turn on manual pushbutton switch 1 again. This is impossible while driving. In other words, it is in a safe state.

[0011]

【effect】

A limit switch using a mercury switch is installed in parallel with this in the circuit for operating the hydraulic system. Since safety circuit B with 4 is installed, wing 9 can be accidentally activated while the wing car is running. In any case, it is possible to completely prevent it from working.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram according to the present invention.

[Figure 2] Mercury switch.

FIG. 3 is a perspective view of a known wing vehicle.

[Explanation of symbols]

A Operation circuit B Safety circuit 1 Manual push button switch 2,2' relay 3 (For wing opening/closing) Manual operation switch 4 Limit switch (based on mercury switch) 5 Relay switch 6 Power supply 7 Lead wire 8 Mercury 9 Wing 10 Front wall 11 Back wall 12 Hydraulic cylinder 13 Hydraulic system 14 Manual push button switch for opening/closing the wing

Claims (1)

[Scope of utility model registration request] Claim 1: A limit consisting of a mercury switch installed in parallel with a wing operation circuit (A) consisting of a relay switch (5), a manual operation switch (3) for opening/closing the wing, and a relay (2'). Switch (4), manual push button switch (1), and relay (2)
A safety device for an L-shaped roof opening/closing device of a wing vehicle, characterized in that a safety circuit (B) consisting of the following is provided.