JPH0233082A - Controller for door of elevator - Google Patents

Abstract

PURPOSE:To reduce the door opening and closing time to the half by obviating the need of opening or closing the door over necessity when a small-sized freight is carried in, by installing a stop means for stopping the door when a half opening detecting switch is operated after the operation of a half opening operating switch. CONSTITUTION:In case of a small-sized freight which can be sufficiently carried in and out by opening a door 2 to a nearly intermediate part, a half opening operation switch HS is turned ON to allow the door to start open, and when the door reaches the nearly intermediate part of the opening, a half opening detecting switch HL is operated. At the same time, a stop means 3 is operated to set the door 2 in the half opened state, and in this state, the small-sized freight is carried in and out, and the door 2 is perfectly closed after the lapse of a prescribed time. Therefore, the opening/closing time of the door 2 can be reduced to the half. Further, when a large-sized freight is carried in and out, a half opening operating switch is cut off, and the door 2 is perfectly opened and closed by operating an operating switch for the perfect opening and closing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elevator door control device, and more particularly to an elevator door control device suitable for an elevator with a wide frontage dedicated to transporting cargo.

[Conventional technology]

In general, cargo elevators that mainly transport cargo have wide door openings, so as described in Utility Model Application Publication No. 52-119259, the door is constructed from multiple panels and these are interlocked in one direction. It was configured to open and close by opening and closing.

[Problem to be solved by the invention]

Conventional elevator door control devices are configured as described above, so when loading and unloading small luggage using this freight elevator, a small opening is sufficient for loading and unloading, but a large opening is required. It takes extra time to fully open and close the elevator, and if the elevator has to stop at each floor and repeat loading and unloading, it takes a lot of time for what is essentially a small amount of work. It turns out.

An object of the present invention is to provide an elevator door control device that opens and closes the door efficiently.

[Means to solve the problem]

In order to achieve the above object, the present invention includes a half-open detection switch that detects when the car is opened to approximately the middle of the frontage, and a half-open operation switch provided in the car near a door made of a plurality of panels. The door is characterized in that a stopping means is provided to stop the door when the half-open detection switch is activated after the half-open operation switch is operated.

[For production]

Since the elevator door control device according to the present invention is configured as described above, when the half-open operation switch is turned on, the door starts to open, and when it reaches approximately the middle of the frontage, the half-open detection switch is activated, and at the same time, the stopping means is activated. The door is then left in a half-open state, and as in the conventional case, the door is fully closed after a predetermined period of time has elapsed. As a result, the opening/closing time of the door is approximately half that required for fully opening and closing the door, and unnecessary door opening/closing operations are not performed. In addition, when it is necessary to carry in or take out large items, the door can be easily returned to the conventional full-open operation by shutting off the half-open operation switch, allowing for proper operation according to the situation. become.

〔Example〕

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

FIG. 1 is a schematic diagram of the car 1 seen from above, and the door 2 consisting of three panels 21 to 23 is opened and closed by a drive device (not shown) at the dotted line in the figure.

The normal door opening/closing operation is performed by the operation of the full open detection switch OL, which detects that the door is fully opened, and the full open detection switch CL, which detects that the door is fully closed, so that the door is fully opened and closed. When the door should be opened half-open when loading and unloading cargo, turn on the half-open operation switch H8, and when the door reaches approximately the middle of the frontage, the half-open detection switch HL detects this and activates the stop means. 3 keeps the door in a half-open state. Such opening/closing operations of the door are performed based on a control circuit diagram having a stop means 3 shown in FIG.

Between the power supplies P and N, there are a door opening relay R2 for opening the door, a door closing relay R1 for closing the door, and a half-opening relay for stopping the door approximately in the middle of the frontage. Operation relay R3 is connected in parallel. Each operating relay is configured with a contact point connected in series, which is a condition for energizing the operating relay. Door opening operation relay R2
, a normally open contact R4a of a door open command relay (not shown),
Parallel contacts of normally closed contacts HLb and R3b, and normally closed contacts OL
b are connected in series. The door closing operation relay R1 has
A normally open contact R5a and a normally closed contact CLb of a door closing command relay (not shown) are connected in series and are configured to be energized from when a command to close the door is issued until the door is fully closed. A half-open operation switch H8 is directly connected to the half-open operation relay R3, and is energized while the half-open operation switch H8 is turned on.

In addition, normally open contacts R1a and R2a are connected between the power supplies P and N.

A series circuit consisting of normally open contacts R2a and Rla is provided. Between the contacts of these series circuits, a seven-torque armature M constituting the door driving device is connected, and a field coil F, control resistors r, , r, and a constant current are electrically connected in parallel. Closed contacts R1b, R2b
The opening and closing operations of the door are performed by the operation of the door.

The door of the cargo elevator with a wide frontage configured as described above performs the following opening and closing operations depending on the situation, and this operation will be explained with reference to FIGS. 3 and 4.

Normally, the door is fully open and fully closed, and the half-open operation switch H8 is not turned on. After reaching the destination floor, the door of the next car is fully closed as shown in Figure 3, and at this time, the door open command relay (not shown) is energized and the normally open contact R is activated.
4a should be thrown in. Since the normally closed contacts R3b and OLb are both closed, the door opening operation relay R2 is energized, and as a result,
Power supply P... Normally open contact hole 2a,... Armature M... Control resistor r,... Normally open contact R
2a, ... A circuit called power supply N is formed, and it is excited by the circuit called power supply P ... field coil F ... ... power supply N, and by the action with nine field coils F. , the armature M is driven in the door opening direction. When the door approaches fully open and the fully open detection switch OL detects 7, the normally closed contact OLb
is enclosed, the door opening operation relay R2 is deenergized, and the normally open contact hole 2
a1. R2a is opened and the normally closed contact R2b is closed, so that the armature M is stopped in the state shown in B in FIG. 3. When a predetermined period of time has elapsed, a door closing command relay (not shown) is energized, the normally open contact R5a is closed, and the door closing operation relay R1 is energized. As a result, the power supply P...
... Normally open contact R1a, ... Control resistance r, ...
... Armature M ... Normally open contact R1a, ...
...Circuit called power supply N and excited field coil F
As a result, the armature M is reversed and driven in the door closing direction. When the fully closed state C in FIG. 3 is reached, the fully open detection switch CL detects this, the normally closed contact CLb is opened, the door closing operation relay 1 is deenergized, and the armature M is stopped. This kind of opening/closing action allows you to easily carry in and out your luggage.

If the luggage is small, first press the half-open operation switch H.
Insert 8. This energizes the half-open operation relay R3 and opens the normally closed contact R3b.

In this state, when the car arrives at the destination floor, the normally open contact box 4a is closed and the door opening relay R2 is energized, as in normal times, and the car is fully closed as shown in Figure 4. The door begins to open. When the door reaches approximately the middle of the frontage, the half-open detection switch HL is activated and the normally closed contact HLb is closed.

At this time, since the normally closed contact R3b is already open, the door opening operation relay R1 is deenergized, and in the same way as in normal times, the stopping means 3 consisting of the contacts around the %@ slave station is operated by B in Fig. 4. It stops in a half-open state like this. Then, after a predetermined period of time has elapsed, the normally open contact R5a is closed, and the state M is reversely driven to become fully closed as shown in C in FIG. 4, and the operation ends. As a result, the time required to open and close the door is halved, allowing for efficient loading and unloading of small items. Even if you suddenly have to bring in a large item, you can immediately return to full open/close operation by releasing the half-open operation switch H8, so you can open and close the door appropriately depending on the situation. can.

〔Effect of the invention〕

As explained above, the present invention includes a half-open detection switch for detecting that the car is opened to approximately the middle of the frontage, a half-open operation switch provided in the car, and a half-open operation switch provided near the door consisting of a plurality of panels. A stop means is provided to stop the door when the half-open detection switch is activated after operating the half-open operation switch, so if the door is opened to approximately the middle of the frontage, it will be sufficient to carry in and out small items, so the half-open operation switch cannot be operated. This prevents the door from being opened and closed more than necessary, and the time required to open and close the door can be halved. Also,
When loading or unloading large items, by operating the normal full open/close operation switch, the wide frontage can be utilized as before, increasing the operating efficiency of the elevator.

[Brief explanation of the drawing]

Fig. 1 is a plan view of an elevator door control device according to an embodiment of the present invention, Fig. 2 is a control circuit diagram thereof, Fig. 3 is a diagram of the door opening/closing operation in normal times, and Fig. 4 is a plan view of an elevator door control device according to an embodiment of the present invention. FIG. 6 is a diagram showing the opening and closing operation of the door according to the embodiment. 1...basket, 2...door, 3...
・Stopping means, 21~...Panel, HL...Song half-open detection switch, H8...Half-open operation switch. Figure 1 Figure 2 Figure. ＼2 Bノ

Claims (1)

[Claims] 1. In an elevator door control device in which multiple panels work together to open and close in the single-open direction, a half-open detection switch is installed near the door to detect when the car has opened to approximately the middle of the frontage. A control device for an elevator door, comprising: a half-open operation switch provided in the car; and a stop means for stopping the door when the half-open detection switch is activated after operating the half-open operation switch.