JPH0547713B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of an entrance/exit door control device in a mechanical parking device.

Conventionally, the entrance/exit door of mechanical parking systems has been equipped with safety devices such as safety screens and photoelectric devices to detect obstacles, and when this safety device is activated,
For safety reasons, the entrance/exit door is not opened or closed, and the mechanical parking system is not operated.

In such conventional devices, if this safety device were to malfunction and the entrance/exit door would no longer open or close, the parking device would suddenly stop working, making it impossible to take out the cars currently stored in the cages, and creating new cars. This will cause a great deal of inconvenience to the users as they will not be able to park their cars in the parking lot, and this will result in a huge loss in terms of the parking lot's business.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an entrance/exit door control device that can open/close the entrance door and operate a mechanical parking device even if the safety device of the entrance door fails. .

An embodiment of the present invention will be described below with reference to the drawings.

For simplicity, the figure shows an example of a door closing circuit in the door control circuit of the present invention, and E+ and E- in the figure are power busbars,
RY1 is a door closing relay (command device) that closes the entrance door by a well-known door drive device when energized.
2 is a driving relay that operates the mechanical parking device by a well-known drive device when energized, RY1a is a normally open contact of door closing relay RY1, and RY1b is a door closing relay.
RY1 is a normally closed contact, TRY1 is a delayed activation relay that delays operation by a small amount of time t ₁ when voltage is applied, and TRY2 is an activation delay relay that operates for a predetermined time t ₂ (t ₂ > t ₁ ) when voltage is applied. TRY1a, TRY1c are the time-limited normally open contacts of the delayed operation relay TRY1, TRY2a,
TRY2d is the time-limited normally open contact of the delay relay TRY2, TRY2b and TRY2c are the delay relays.
TRY2 is a time-limited normally closed contact, BS1 is a door close button that closes when operated, BS2 is an operation button that also closes when operated, BZ is a buzzer, and LSa is a mechanical switch that closes when the entrance/exit door is completely closed. The contact, LSb, is a mechanical contact that opens when the entrance/exit door is completely closed, and DRYb is a safety device for the entrance/exit door that opens when an obstacle detection device such as a photoelectric device detects an object that obstructs the opening/closing of the door. Normally closed contact, KRYa,
KRYb and KRYc are the normally open and normally closed contacts of the parking device's safety device, which closes or opens when the presence of a person is detected in the tower by a photoelectric device, etc., and L1 indicates that the parking device is operable. The indicator light L2 informs the operator that the parking device cannot be operated because the safety device of the parking device is activated.

The operation of the device of the present invention will be explained below.

[Normal case (when none of the safety devices on the entrance/exit door and parking device are operating), that is, when contacts DRYb, KRYb, and KRYc are closed, and contact KRYa is open]

Before operating the parking device, first press the door close button BS1 to close the open door, and the closed circuit “E+-BS1-LSb-DRYb-RY1-KRYb-
E-'' is generated, the door closing relay RY1 is energized, and is self-maintained by closing the contact RY1a. door close button
When BS1 is operated, the closed circuit “E+
−BS1−LSb−RY1b− ^TRY1 _TRY2 −E−” occurs,
Voltage is applied to operation delay relays TRY1 and TRY2, but contact RY1b of door closing relay RY1 is applied immediately.
is open, the operation delay relay TRY1, TRY
2 does not work. When the door closing relay RY1 is energized and the door is closed by a well-known door driving device,
Contact LSb opens to deenergize door closing relay RY1, and contact LSa closes to create a closed circuit "E+-".
LSa-KRYc-L1-E-" lights up the indicator light L1 to notify the operator that operation is possible. Then the operator presses the parking device operation button BS2.
When you press , the closed circuit “E+LSa−KRYc−BS2−
RY2-E-'', the operation relay RY2 is energized, and the parking device is operated by a well-known drive device.

[When the safety device of the entrance/exit door is activated, that is, when contact DRYb is opened]

As in the case described above, even if the door closing button BS1 is pressed to close the open door prior to operation of the parking device, the door closing relay RY1 is not energized because the contacts DRYb and TRY2a are open. but,
Closed circuit "E+-BS1-LSb-RY1b- ^TRY1 _TRY2 -E
–” occurs, and the operation delay relays TRY1 and TRY2
A voltage is applied to. Operator presses door close button BS1
If you hold down for a time t ₁ , the activation delay relay TRY
1 operates, and the closed circuit "E+-TRY1c-TRY2b" is activated by closing the time-limited normally open contact TRY1c.
-BZ-E-" is generated and the buzzer BZ is sounded to alert the operator and also to warn of any obstructions that are preventing the door from opening or closing. The operator notices an obstacle in opening/closing the door and presses the door close button BS1.
If you let go of the trigger, the activation delay relay TRY1 will immediately activate.
is deenergized and the time-limited normally open contact TRY1c, which had been closed until now, is opened, causing the buzzer BZ to stop sounding, and the operator must press the door close button BS1 again after the obstacle is cleared. The subsequent operations are the same as in the normal case described above, and will therefore be omitted.

By the way, if the reason why the buzzer BZ sounds is not simply due to the presence of an obstacle, but is caused by contact DRYb not closing and opening due to a failure of the door's safety device, then the operator should check the area around the door sufficiently. While being careful, continue to press the door close button BS1.
When the door close button BS1 is kept pressed and time _t2 elapses,
This time, the operation delay relay TRY2 operates, the time-limited normally open contacts TRY2a and TRY2d are closed, and the time-limited normally closed contacts TRY2b and TRY2c are opened.
Buzzer is activated by opening of the time-limited normally closed contact TRY2b.
In addition to stopping the BZ sound, the normally open contact operates for a limited time.
Closed circuit "E+-BS1-" by closing TRY2a
LSb-TRY2a-RY1-KRYb-E-" to energize the door closing relay RY1 (in this case, the contact
Self-holding is not achieved by opening TRY2c), and the door is closed. During the door closing operation, if the operator feels danger and releases the door closing button, the operation delay relays TRY1 and TRY2 are deenergized, and the door closing relay RY1 is deenergized, and the entrance/exit door remains in its current state. Stop immediately. When the dangerous condition is resolved and the operator continues to press the door close button BS1,
As described above, the buzzer BZ starts sounding after time _t1 , and after time _t2 , the buzzer BZ stops sounding, and then the entrance/exit door starts to close again. When the entrance/exit door is completely closed, the door closing relay RY1 and operation delay relays TRY1 and TRY2 are deenergized by the opening of the contact LSb, and the closed circuit "E+-" is closed by the closing of the contact LSa.
Indicator light L1 through "LSa-KRYc-L1-E-"
lights up to notify the operator that operation is possible. When the operator presses the operation button BS2 after waiting for this indicator light L1 to light up, the closed circuit “E+-LSa-
KRYc-BS2-E-", operation relay RY2 is energized and the parking device is operated.

As you can see from the above explanation, even if the door safety device fails in the direction that prevents the door from closing, the door close button will not close.
By pushing BS1 all the way, the entrance/exit door is closed and the parking device can be operated, so there is no inconvenience to the users.

In addition, in this circuit, the time-limited normally open contact TRY2d and the time-limited normally closed contact of the operation delay relay TRY2 are connected.
Even if TRY2c is replaced with a time-delayed contact of the operation delay relay TRY1, the effects of the present invention will not change.

[When the safety device of the parking device is activated, that is, contacts KRYb and KRYc are open and contact KRYa is closed]

If the safety device of the parking device is activated, the contact
Closed circuit "E+-KRYa-L2" by closing KRYa
-E-", the indicator light L2 is turned on to inform the operator that the safety device of the parking device is activated. However, even if the operator does not notice this and continues to operate the door close button BS1, contact KRYb For safety reasons, the door closing relay RY1 will never be energized due to the opening of the circuit. Also, if the door close button BS1 is operated by the operator for more than time t ₁ , the operation delay relay TRY
1 is energized and buzzer BZ sounds to alert the operator.

In the above explanation, only the door closing operation has been described, but it is extremely easy to develop the present invention by constructing a similar circuit for the door opening operation.
In addition, in the above explanation, an example was described in which the door close button and the operation button were provided separately, but when the operation button is operated only with the operation button, the door close operation starts immediately, and the door closes completely. The parking device may automatically start operating.

As described above, according to the present invention, even if the safety device of the entrance/exit door fails, the parking device can be operated as an emergency during the business hours of the parking lot, so there is no need to inconvenience the users. There is no problem with the operation of the parking lot. In addition, troubleshooting can be carried out outside business hours, thereby making it possible to avoid as much as possible an inoperable state of the parking device due to a failure of the entrance/exit door safety device.

[Brief explanation of the drawing]

The figure shows an embodiment of the door control circuit of the present invention. BS1...Door close button, BS2...Run button, RY1...
...door close relay, RY2...operation relay, TRY1,
TRY2...Activation delay relay, LSa, LSb...Output contact of safety device of entrance/exit door, KRYa, KRYb,
KRYc...Parking device safety device output contact.

Claims (1)

[Scope of Claims] 1. A button BS1 that opens and closes an entrance/exit door in a mechanical parking device, and an output contact that opens when an object or the like that obstructs the opening/closing of the entrance/exit door is detected.
DYRb, and when the button BS1 is operated, voltage is applied to the command device RY1 through the contacts of the button BS1 and the output contact DRYb of the safety device, and the output contact RY1 of the command device RY1 is
In the control device in which the voltage application is held by a and the opening/closing of the entrance/exit door is performed, a timer device TRY2 is configured such that a voltage is applied through the output contact RY1b which opens when the voltage is applied to the command device RY1 when the button BS1 is operated. At least one output contact TRY2 is provided, and the output contact TRY2 operates for a timed closing of the timer TRY2.
a and the output contact DRYb of the safety device are connected in parallel, and if the button BS1 is kept pressed and the command device RY1 is not energized for a predetermined period of time or more, the timer is activated.
An entrance/exit in a mechanical parking device characterized in that TRY2 is activated to apply a voltage to the command device RY1, and an output contact TRY2c of the timer TRY2 which performs a timed opening operation is connected in parallel with a contact of the button BS1. Door control device. 2. Claim 1, characterized in that a timer having an output contact that performs a timed opening operation for a short period of time and a timer having an output contact that performs a timed closing operation for a longer time are provided separately. Entrance/exit door control device for mechanical parking systems.