JPS5820611Y2 - Elevator service floor cutting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a device for cutting off a service floor of an elevator.

In office buildings, multi-tenant buildings, etc., business days and hours vary depending on the purpose of use of each floor, so outsiders may enter by elevator after business hours or at night.

Therefore, a service floor cutting device may be provided for each floor for the purpose of sealing and security.

This service floor disconnection device for each floor is operated by a service floor disconnection switch for each floor provided on an elevator car operation panel or the like.

That is, by disabling call registration for the floor on which this switch is operated, outsiders are prevented from entering the elevator.

For this reason, there are disadvantages in that it is necessary to provide a service floor disconnect switch for a number of floors, and that as the number of service floors increases, the installation space for the switch and its aesthetics are inevitably restricted.

The purpose of this invention is to eliminate the above-mentioned drawbacks, and to provide an elevator service floor disconnection device that allows the service floor disconnection of each floor of the elevator to be easily performed without providing a switch for each floor. do.

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

It is assumed that the elevator serves the 1st to 8th floors, the main entrance and exit of the building is on the 1st floor, and the 2nd to 8th floors are arbitrarily divided into service floors.

In the figure, + and - are DC power supplies, 1 is a service floor disconnect switch installed on the car operation panel, 2 is a time-limited time relay, 2a and 2b are their normally open contacts, and time relay 2 is energized. It closes after a certain period of time (for example, 0.5 seconds).

Similarly, 2c is a normally closed contact, which opens immediately after the time relay 2 is energized.

3 is also a time-limited operation type time-limited relay, 3a is its normally closed contact, which opens after a certain period of time (for example, 3 seconds) after time-limited relay 3 is energized, 3b is also a normally open contact, and 4 is a service floor disconnection operation. In the relay, 4a to 4g are its normally open contacts, 5
Indicator light installed on the ladder operation panel to indicate that service floor disconnection operation is possible, 6 to 12 2 on the ladder operation panel
- Destination floor buttons for the 8th floor, 13-19 are the call registration relays for the 2nd-8th floors, 13a-19a are the respective normally open contacts, 20-26 are the service floor disconnect relays for the 2nd-8th floors, 2
0a to 26a are normally open contacts, and 20b to 26b are normally closed contacts.

Assume that the car is currently on the first floor, and when the second floor is closed, the manager gets into the car and closes the service floor disconnect switch 1. The time relay 2 is energized and contacts 2c are opened, calling whether the car has already been registered or not. Deactivate all registered relays.

Also, after a predetermined time period (for example, 0.5 seconds), the contact 2a closes, and the +1-2a-3a-4-1 circuit energizes the relay 4, which closes the contacts 4a to 4g, and the service floor When the disconnection operation becomes effective, the indicator light 5 lights up to indicate this.

In order to cut off the second floor, the administrator clicked the destination button 6 for the second floor.
When you press , contact 2b is already closed, so +-6-
The relay 20 is energized by the circuit 4a-20-2b-1, and self-holds by closing the contact 20a.

At the same time, the contact 20b is opened, making it impossible to register the call from the second floor.

When the contact 2a is closed, the timed relay 3 is energized by the +-1-2a-3-1 circuit and operates after a predetermined time period (for example, 3 seconds), and when the contact 3a is opened, the relay 4 is activated. After this, the service floor disconnection operation becomes invalid and the indicator light 5 also goes out.

Then, by closing the contact point 3b, it becomes possible to register a call to a room other than the second floor.

After that, when it becomes necessary to service the second floor, by opening switch 1, timed relays 2 and 3 are de-energized, and by opening contact 2b, relay 20 is de-energized, allowing the second floor to be called and registered. becomes.

As explained above, in this invention, if the destination floor button is operated within a predetermined time after operating the release switch,
Since the floor is memorized and registration of the car call for that floor is prevented, the service floor can be easily disconnected for each floor without providing a switch for each floor.

[Brief explanation of drawings]

The figure is a circuit diagram showing an embodiment of an elevator service floor disconnection device according to this invention. 1 is a service floor disconnect switch, 2 and 3 are time-limited relays, 4 is a service disconnect relay, and 6 to 12 are 2
-Destination floor buttons for the 8th floor, 13-19 are call registration relays for the 2nd-8th floors, and 20-26 are service floor disconnect relays for the 2nd-8th floors.

Claims (1)

[Scope of utility model registration request] A disconnection switch operated when disconnecting a service floor, a destination floor button provided in the car, a car call registration circuit that registers the car call of the floor on which this destination floor button is operated, a predetermined time after operating the disconnection switch. A timer circuit that operates when the timer circuit is activated; and a service floor that stores the operated floor when the destination floor button is operated during the period in which the timer circuit operates, and prevents the operation of the car call registration circuit for that floor. An elevator service floor disconnection device comprising a disconnection circuit.