JPH04201968A - Door device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an elevator door device in which a car door and a landing door are engaged with each other and opened and closed together when a car faces a landing. .

[Prior Art] For example, as shown in Japanese Patent Publication No. 58-10354, there is a conventional elevator in which an engagement plate is provided on the elevator car door and an engagement element is provided on the elevator landing door. There is a door device for

In such a conventional elevator door device, when the car passes through the landing, the engagement plate moves without contacting the engagement element. Also. When the car lands on the landing, the engagement plate engages with the engaging element, and the car door and the landing door open and close together. Then, the landing door is unlocked via the engaging element by the initial operation when the car door opens from the fully closed position. The engagement plate is then widened to tightly engage the engagement element.

[Problems to be Solved by the Invention] In the conventional elevator door device as described above, due to the installation error at the first landing, there is a difference in the spacing between the engaging plate and the engaging element at each floor landing when the car door is fully closed. arise. For this reason, even in a landing where the distance between the two mentioned above is wide, the initial opening speed range of the car door is set so that the operation noise when unlocking the landing door is reduced by the initial opening operation of the car door. (because the time required to open and close the door device is long).

In addition, the initial opening operation section of the car door is about 50 millimeters, and in this section the two mentioned above are not in close contact.
The speeds of both the car door and the landing door do not match, resulting in unsmooth movement, and the two collide with each other, producing unpleasant noise. In order to prevent such noise, the car door is set to operate at a low speed during the initial operation period.

Therefore, there is a problem in that the time required for opening and closing the door device becomes longer and the transportation efficiency of the elevator is hindered.

The present invention has been made to solve these problems, and an object of the present invention is to obtain an elevator door device in which the initial low speed region of the car door when opening is reduced.

[Means for Solving the Problems 1] In the elevator door device according to the present invention, a first engagement plate facing the door bag side of the fixed engagement element of the second landing door is provided on the car door via a movable mechanism. Further, a second engagement plate facing the door stop side of the movable engagement element of the landing door is provided on the car door. Furthermore, an actuation drive machine for moving the first engagement plate forward and backward relative to the fixed engagement element is provided, and a control device for operating the opening/closing drive machine and the actuation drive machine is provided.

[Operation] When a door opening command is issued in the elevator door device configured as described above, the first engagement plate hits the fixed engagement element or presses the fixed engagement element and opens the door of the landing by the actuation drive machine. Displace it in the direction of the door stop. Then, the opening/closing drive unit opens the car door, and the second engagement plate displaces the movable engagement member to establish a close engagement, and the landing door opens when the close engagement is established. Further, when a door closing command is issued, the opening/closing drive operates to close the door, and when the landing door is fully closed, the first engagement plate retreats and the close engagement is released.

[Embodiment] Figs. 1 to 9 are diagrams showing an embodiment of the present invention. In Fig. 9, (1) is an elevator car having an entrance/exit (1a);
(lb) is a stopper provided on the edge of the door stop of the doorway (la), (2) is a sliding car door that opens and closes the doorway (la), and (3) is a stopper provided on the edge of the doorstop of the doorway (la). Opening/closing drive machine that drives the lever door (2), (3bl
(3c) is an encoder that detects the position of the car door (2) by the rotation of the opening/closing drive (3); (4) is the control means for the car door (2) by the parallel link mechanism (4a); P (first engagement plate installed near the door stop of 21,
(4b) is a blocking piece provided on the car door (2) to limit the operation of the parallel link mechanism (4a) to a predetermined range;
) is a rotary actuator that drives a parallel link mechanism (4a) and is equipped with a control means (5a). , (6) is a second engagement plate that is provided near the door compartment of the car door (2) and is placed on the hand side with a gap from the first engagement plate (4); Elevator landing facing car (11), (7b)!
, is a stopper provided at the edge of the door stop of the entrance/exit (7a), (8) is a landing door that is a sliding door and opens and closes the entrance/exit (7a), and (9) is a stopper provided near the door stop of the landing door (8). The provided fixed engager (101 is a movable engager provided near the door pocket of the landing door (8), and is pivoted at the lower end of the L-shaped link (10a) pivoted to the landing door (8). The displacement of the roller toward the door bag side is restricted at a predetermined position by a blocking piece (10b).

(11) is a hook rod whose middle part is pivotally supported on the upper edge of the landing door (8), and is connected to the horizontal part of the L-shaped sunk (10a) by a rod (lla) on the side of the door bag. A convex portion (llb) is formed on the contact side. (12) is the entrance/exit (7
a) A lock device provided on the upper edge, including a latch piece (12a) facing the protrusion (llb), and a locking contact (12b)
is provided. (13) is a wire robe (13b) that is wrapped around a pulley (13a) whose one end is fixed to the upper edge of the doorway (7a) and pivoted to the upper end of the landing door (8).
and a closer consisting of a weight (13c) connected to the lower end of the wire lobe (13b), (13d) is a weight (
13c) is a cylindrical guide body surrounding it, and (14) is a control device.

(15) and (16) are commands from an operation command device (not shown), (15) is a door open command, and (16) is a door close command.

When the car door (2) and the landing door (8) are fully closed, the elevator door device configured as described above has the first engaging plate (4) and the fixed engager in a horizontal plane as shown in FIG. A gap A is formed between (9) and a gap B is formed between the second engagement plate (6) and the movable engagement element (10). Also, the door of the landing (
8) is fully closed, the hook bar (11) is in the locking position where the protrusion (llb) is opposite the latch piece (12a), and the car (1) passes through the landing (7) in the state shown in Figure 3. .

Now, the car (1) has landed on the landing (7) and the command to open 9 doors (1
5) is activated, the control device (14) operates the actuator (5), and the first engagement plate (4) is urged toward the doorstop and hits the fixed engagement member (9), causing the movement shown in Fig. 6 to occur. The state shown is shown. Then, the control device (14) causes the opening/closing drive machine (3) to operate and open/displace the car door (2) at a low speed. This reduces the gap B, but during this time the nine-actuating drive machine (5) continues to operate and is maintained in a state where there is no gap A. Then, when the second engagement plate (6) contacts the movable engagement element (10) and further displaces the movable engagement element (10) by dimension C shown in Fig. 7, the locking contact (12b) is opened and the car door is opened. °(2) opens the door by the 0 dimension, but the landing door (8) is in the fully closed position. Car door (2) corresponding to dimension C in Figure 7
It is difficult to keep the position constant due to the difference in gap A and gap B due to installation error in each landing (7), and the C dimension position of each landing (7) is controlled via the encoder (3c). It is stored in the device (14) and used for opening/closing control. When the car door (2) opens further, the movable engager (
10) undergoes a - layer displacement and stops upon hitting the blocking piece (10b). In this state, the locking device (12) is unlocked, and the car door (2) is opened to dimension E as shown in Figure 8, and the door (8) of landing 9 is in the fully closed position, as shown in Figure 8. Depending on the placement, the basket door (
2) and the landing door (8) are closely engaged. and,
Immediately before the close engagement, that is, at the C dimension position in Fig. 7, the opening/closing drive machine (3) is energized in a high speed range for each landing (7) by the memory of the control device [14], and the car door (2) is closed. The door (8) of landing 9 is fully opened under predetermined control.

As mentioned above, the door to the landing (8) was opened by the command to open one door (15).
The first engagement plate (4) operates while the car door is fully closed, and the car door (
2) opens at a low speed, the car door (2) and the landing door (8) are in close engagement, and the car door (2) opens at high speed just before the close engagement of each landing (7). Area driven.

Therefore, even if the low-speed operation section of the car door (2) at the initial stage of door opening is set short, it is possible to prevent the car door (2) and the landing door (8) from operating unsmoothly. Basket (1
) and the landing area (7) collide with each other, thereby reducing noise, thereby providing a door device that operates comfortably. Further, the time required for opening and closing the door device can be shortened, and the operating efficiency of the elevator can be improved.

Note that the first engagement plate (4) is in the state shown in FIG.

The following effect can be obtained by displacing the landing door (8) in the door-closing direction by the actuator (5) via the fixed engager (9). That is, the convex portion (llb) of the hook rod (11)
Since a gap is reliably formed between the latching piece (12a) and the latching piece (12a) facing the latching piece (12a), unlocking by rotation of the hook bar (11) is not hindered. Therefore, failure of the elevator due to unlocking failure can be prevented.

Then, the car door (2) etc. are closed as described below. In other words, when a door closing command (16) is issued, the control device (14) opens and closes the door! (3) works and the 8th
In the state shown in the figure, the car door (2) etc. are moved to close by predetermined door closing control. When a predetermined deceleration range is reached before the door is fully closed, the inertia of the landing door (8) in the door closing direction is reduced by the movable engager (10).
) is supported by the car door (2) by engagement of the second engagement plate (6). Then, when the door (8) of the 9th landing reaches the position immediately before fully closing, the output of the actuator (5) is reduced, and the pressing force of the fixed block (9) of the first engagement plate (4) is increased to the position of the car door (2). The door closing force is controlled to be smaller than the door closing force by the opening/closing drive machine (3).

Then, when the second landing door (8) is fully closed and the car door (2) is closer to the fully closed position than the state shown in Fig. 8, the first engagement plate (4
) is pushed back by the fixed engager (9). This results in the state shown in FIG. 7, and the locking contact (12b) is closed. Next, the car door (2) is closed at low speed while displacing the first engagement plate (4) toward the door compartment via the first actuating drive unit (5), resulting in the state shown in Fig. 9, and the dimensions shown in Fig. 9 are achieved. F gradually decreases.

As shown in Figure 5, both the car door (2) and the landing door (8) are fully closed.

[Effect of the invention] Since this invention is configured as explained above, 2
The following effects can be obtained. In other words, when the landing door is fully closed by the two-door open command, the car door (2) comes to a close contact state with the car door through the operation of the first engagement plate, and immediately before the close engagement, the car door (2) starts driving in the light speed range. be done. This allows the car door to operate smoothly and quietly even if the low-speed operation period at the beginning of the door opening is set to a short period, allowing the door to operate comfortably.
Furthermore, the time required to open and close the door can be shortened.

Further, by pressing the landing door in the door closing direction using the first engagement plate before opening the door, it is possible to prevent unlocking failure due to malfunction of the key stick.

[Brief explanation of the drawing]

Fig. 1 is an overall configuration diagram conceptually showing an embodiment of an elevator door device according to the present invention, and Fig. 3, which will be described later, is a car side stop view. Fig. 2 is a rear view on the landing side of Fig. 3. 3 is a cross-sectional plan view of the elevator door device shown in FIG.
Each figure is a diagram illustrating the operation of the door device of FIG. 1 by enlarging the main parts of FIG. 3. In the figure, (1) is the height, (la) is the doorway, (
2) Car door, (3) opening/closing drive device, (4) first engagement plate, (5) actuation drive device, (6) second engagement plate, (7
) is the landing, (7a) is the entrance, (8) is the door of the landing,
(9) is a fixed engager, (10) is a movable engager, (1
4) is a control device, and (15) is a door open command. Note that the same parts in Figure 1 are indicated by the same symbols.

Claims (2)

[Claims] (1) A car door consisting of a sliding door that opens and closes the car entrance via an opening/closing drive machine, and a fixed engager on the door stop side that opens and closes the entrance and exit of the landing corresponding to the car, and a sliding door that opens and closes the entrance and exit of the car corresponding to the car. A landing door equipped with a movable engaging element for unlocking,
A first engagement plate is attached to the door stop side of the car door via an actuator and is normally held at a corresponding position horizontally away from the fixed engager toward the door compartment; A second engagement plate fixed to the door pocket side of the door and normally placed at a corresponding position horizontally away from the movable engagement element toward the door stop; and a door opening command when the car faces the landing. The actuator is actuated to urge the first engagement plate in the direction of the doorstop so that it hits the fixed engager, and the opening/closing drive is operated to open the door through displacement of the second engagement plate. While displacing the movable engaging element, the opening/closing drive machine is operated to close the door in response to a door closing command, and after the landing door is fully closed, the operation drive machine is operated to displace the first engagement plate in the direction of the door pocket. An elevator door device equipped with a control device. (2) The elevator door device according to claim 1, further comprising a control device that operates the actuating drive machine in response to a door opening command, presses the fixed engagement element with the first engagement plate, and displaces the landing door in the direction of the door stop.