JPH0133379B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an opening/closing device for a vehicle entrance/exit door without a door jamming safety device, and relates to an opening/closing control device suitable for energy saving and safe driving.

[Background of the invention]

In conventional doorway opening/closing devices, the vehicle departure circuit is not configured until after the door is confirmed to be jammed by the door jamming detection circuit, and the door jamming safety device is provided with multiple circuits linked to the traveling device. Furthermore, even in vehicles equipped with a semi-automatic circuit, the closing action of doors that do not need to be opened is relaxed when an opening command is issued, and energy (air) is supplied to all doors during the closing operation, so that the door cannot be opened. The door remains open until the crew member closes it, reducing the efficiency of air conditioning and heating, and has other drawbacks such as rainwater entering the cabin during rain.

[Purpose of the invention]

An object of the present invention is to provide an opening/closing device that can open and close a door using a simple device, open and close the door only at necessary locations, reduce energy consumption, and effectively operate a vehicle safely. There is a particular thing.

[Summary of the invention]

The present invention uses a semi-automatic circuit to open only the door where passengers are getting on and off even if an opening command is issued by a crew member, and closes each door individually by a switch operation by a passenger if necessary, without the crew member's closing operation. This system prevents the wastage of unnecessary energy, and prevents danger to passengers getting on and off the vehicle by interlocking with the vehicle departure circuit, allowing safe vehicle operation.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 shows the structure of the entire door damping device, and the cylinder 6 of the door damping machine 5 is supplied with pressurized air from both the left and right sides of the piston 7 through air guide pipes 8 and 9. A door 1 connected to the right end of the piston rod 10 is opened and closed by applying pressure to either the left or right side of the piston 7. When the electromagnetic coil (29 in FIG. 2) of the electromagnetic valve 11 is demagnetized,
The pressurized air in the air supply pipe 12 is guided to the left chamber of the cylinder 6 via the air guide pipe 8 as shown by the arrow, and the door 1 is closed. 2 is a handle, 3 is a limit switch for opening the door, and 4 is a push switch.

Next, the electric circuit of the present invention will be explained with reference to FIG. In Figure 2, 21 is a power source and disconnector,
Always closed while the vehicle is in operation. 22 is a switch box for issuing command signals to open and close the door 1; when the contact of the internal open switch 23 is closed, the door 1 is commanded to open; when the contact of the close switch 24 is closed, the door 1 is commanded to close. . Reference numeral 25 denotes a relay having an interlocking a contact 25. By closing the open switch 23, the relay 25 closes its interlocking a contact 25a, and excites the relay 27 via an interlocking b contact 26b of the relay 26. The interlocking a contact 27a of the relay 27 holds the relay 27 by itself, and the interlocking a contact 27a
a′ is closed.

In such a configuration, since the door opening limit switch 3 always has its contacts open, the relay 2
8 is demagnetized and its interlocking a contacts 28a and 28a' are open, so the electromagnetic coil 29 of the solenoid valve 11 is demagnetized. As a result, in the air circuit, the left chamber of the cylinder 6 is pressurized from the air guide pipe 8 as shown in FIG. 1, and the door 1 is in a closed state.

Here, when a passenger operates the handle 2 attached to each door 1, the limit switch 3 linked to the handle 2 is closed, the relay 28 is energized, and the linked a contacts 28a and 28a' are closed. The electromagnetic coil 29 is excited by the interlocking a contact 28, the air circuit of the electromagnetic valve 11 is switched, the right chamber of the cylinder 6 is pressurized via the air guide pipe 9, and the door 1 is opened. Furthermore, since the relay 28 is self-held by the interlocking A contact 28a', the door 1 is held open, and even if the passenger releases the handle 2 and the contact of the limit switch 3 is opened, the door 1 will not be closed. do not have.

When the door is open and a passenger is required to get on or off (during heating/cooling, rain, etc.), operating the push switch 4 will demagnetize the relay 28, opening its interlocking a contact 28a and deenergizing the solenoid valve 11. The coil 29 is demagnetized and the door 1 is closed, but the close switch 24 in the door open/close switch 22 is not operated.
When the handle 2 is operated, the door will be opened again.

Next, when the crew member closes the close switch 24 in the switch box 22, the relay 26 is energized, its interlocking B contact 26b is opened, the relay 27 is deenergized, and its interlocking A contacts 27a and 27a' are opened. Relay 28 is demagnetized, thereby opening its interlocking a contacts 28a and 28a, and solenoid valve 1
1 electromagnetic coil 29 is demagnetized and door 1 is closed. Therefore, unless the open switch 23 in the switch box 22 is closed again, the door 1 will not open even if the handle 2 is operated. Furthermore, even if a vehicle departure command is issued by mistake before the close switch 24 is operated, the relay 26 is energized by the command from the interlocked departure command circuit 30, so the circuit operates to close the close switch 24. Perform the same action as when you operated it. Furthermore, even if the open switch 23 in the switch box 22 is closed by mistake while the vehicle is running, the relay 26 is held by the departure command circuit 30, and its interlocking b contact 26b opens, causing the relay 27 to close. is not excited, so even if a passenger operates the handle 2 and closes the contact of the interlocking limit switch 3, the door 1 will not open and the vehicle can be driven safely.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to open and close only a specific door for passengers getting on and off, which prevents unnecessary energy wastage when opening and closing the door, and improves the efficiency of heating and cooling inside the car. can be significantly improved. Furthermore, by interlocking with the departure command circuit, it is possible to eliminate the problem of accidents caused by erroneous operations by crew members and passengers.

[Brief explanation of drawings]

FIG. 1 is an air piping diagram of a vehicle door damping device, and FIG. 2 is an electric circuit diagram showing an embodiment of the present invention. 1... Door, 2... Handle, 3... Limit switch, 4... Push switch, 5... Door jamming machine, 6... Cylinder, 7... Piston, 8...
Air guide pipe, 9... Air guide pipe, 10... Piston rod, 1
DESCRIPTION OF SYMBOLS 1... Solenoid valve, 12... Air supply pipe, 21... Power source disconnector, 22... Switch box, 23... Open switch, 24... Close switch, 25... Relay, 25
a... Interlocking a contact, 26... Relay, 26b...
Interlocking b contact, 27...relay, 27a...interlocking a
Contact, 27a'...Interlocking a contact, 28...Relay,
28a... Interlocking A contact, 28a'... Interlocking A contact,
29... Electromagnetic coil, 30... Start command circuit.

Claims (1)

[Claims] 1. A circuit in which the open switch and close switch of the door opening/closing switch box and relays 25 and 26 are connected in series, and the relay 2 is connected to the interlocking contact 25a of the relay 25.
6 interlocking contact 26b and relay 27 are connected in series,
A circuit in which the interlocking contact 27a of the relay 27 is connected in parallel with the interlocking contact 25a, a limit switch having an a contact and a push switch having a b contact linked to the handle of each passenger door, and a relay 28 for holding the door open are connected in series. Connect the interlocking contact 28a' of the relay 28 in parallel with the limit switch,
The limit switch, push switch, and relay 28 have a circuit in which the interlocking contact 27a' of the relay 27 is connected in series to a circuit in which the interlocking contact 28a of the relay 28 and the solenoid valve 29 of the door dampening machine are connected in parallel. An opening/closing device for a vehicle entrance/exit door, which is characterized by being connected in parallel. 2. An opening/closing device for a vehicle entrance/exit door according to claim 1, wherein a departure command circuit is connected to a circuit of a closing switch and a relay 26.