JP2000211862A - Elevator door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator door device capable of performing abnormality control of the door shutting motion when only the hoistway door to move together with shutting of the car door is obstructed. SOLUTION: A car door 3 opens and shuts the car doorway 2 operated by a driving device 4, while a hoistway door opens and shuts the hall inlet/outlet. The car door 3 is fitted with an engaging plate 7, and the hoistway door is fitted with an engaging mechanism to be engaged with the plate 7 when the car door 3 and hoistway door are mating with each other. The car door 3 is fitted with a sensing means 20 to confront the engaging mechanism when the two are mating and actuated by a pressure given by the engaging mechanism when the car door 3 is going to be shut. The sensing means 20 is actuated by pressing of the engaging mechanism owing to a relative displacement of the car door 3 and hoistway door in case only the hoistway door is obstructed while the two should move to shut so that the door device is put under abnormality control for example to open the doors in inversion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for an elevator which is constituted by a sliding door and is engaged with a door of a car which drives a landing door to open and close.

[0002]

2. Description of the Related Art FIGS. 7 to 9 show a conventional elevator door apparatus. FIG. 7 is a front view of a car, and FIG.
FIG. 9 is a cross-sectional plan view of the main part of the landing where the car stops, and FIG. 9 is an enlarged cross-sectional view showing the state of the entrance when the car of FIG. In the drawing, reference numeral 1 denotes a car that moves up and down an elevator shaft (not shown), 2 denotes a car doorway, 3 denotes a car door that is a sliding door and opens and closes a car doorway 2, 4 denotes a car provided with a link mechanism and a link mechanism. The driving device is connected to the door 3 of the vehicle.

[0005] Reference numeral 5 denotes an elevator control device, which is provided with a door opening / closing controller 6 connected to a drive device 4. Reference numeral 7 denotes an engaging plate provided on the car door 3, which has a cross-sectional groove shape, has a groove opening on the front surface of the car door 3, and has a longitudinal length. Reference numeral 8 denotes an obstacle detector which is always provided at the edge of the door 3 of the car door 3 so as to protrude.
When there is an obstacle such as a passenger, the vehicle retreats upon hitting the obstacle and operates to detect an abnormality.

[0004] Reference numeral 9 denotes a landing entrance provided in the hoistway, which faces the car entrance 2 when the car 1 is stopped. 10 is a landing door which comprises a sliding door and opens and closes the landing doorway 9;
Is a door closing device comprising a link mechanism, which constantly biases the door 10 of the landing by a spring 12 in the door closing direction. Reference numeral 13 denotes a locking device provided at the edge of the landing entrance 9, and reference numeral 14 denotes a hook provided on the landing door 10 and engaged with the locking device 13.

[0005] Reference numeral 15 denotes a well-known engaging mechanism provided on the landing door 10. A stationary trochanter 16 pivotally attached to the landing door 10, and a rotating arm whose intermediate portion is pivotally supported by a stationary trochanter 16 axis. 17, a transfer trocar 18 pivotally supported at one end of the rotating arm 17 and an operating link 19 connected at one end to the other end of the rotating arm 17 and connected to the hook 14 at the other side.

The conventional elevator door device is configured as described above. When the car 1 does not face the landing entrance 9, the hook 14 engages with the lock device 13. This locks the landing door 10 and prevents the door from being opened. Further, when the door 3 of the opened car closes, when there is an obstacle at the car doorway 2, the obstacle detector 8 hits the obstacle and retreats to detect an abnormality. Thereby, the door opening / closing controller 6 operates to perform abnormal time control such as closing the door 3 of the car by reversing the door.

When the car 1 faces the landing doorway 9, the stationary trochanter 16 and the transition trochanter 18 of the engaging mechanism 15 are arranged between the grooves of the engaging plate 7 as shown in FIG. ,
A gap G shown in FIG. 9 is formed between the engagement plate 7 and the stationary trochanter 16. Then, the transfer trochanter 18 is pressed by the engagement plate 7 by the initial operation of opening the door 3 of the car, and is transferred in the counterclockwise direction in FIG.

The turning arm 1 due to the transfer of the transfer trochanter 18
7. The hook 14 is displaced through the operation of the operation link 19, and the landing door 10 is unlocked. Next, when the car door 3 is opened, the engaging mechanism 15 is sandwiched between the grooves of the engaging plate 7, and the landing door 10 is opened together with the car door 3.

In addition, the car door 3 and the landing door 1 are opened.
When 0 is closed, the door 3 of the car and the landing are closed by the engagement of the engagement plate 7 and the engagement mechanism 15 by the door closing operation of the car door 3 and the urging of the door closing device 11 of the landing door 10. Close the door together with door 10. When the car door 3 is fully closed, the transfer trochanter 18 in the groove of the engagement plate 7 moves to the previous position and the hook 1
4 is displaced and the landing door 10 is locked.

[0010]

In the conventional elevator door apparatus as described above, when the car door 3 and the landing door 10 are closed, obstacles such as passengers may be present in the closed path of the car door 3. If there is, an abnormal-time control such as reversal door closing of the door device is performed through the operation of the obstacle detector 8. However, when there is an obstacle on the door closing path of the landing door 10, there is a problem that the obstacle is not detected and the door device is forced to close.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an elevator door device which can control abnormally when only the landing door hits an obstacle when the door is closed and the door closing operation is disturbed. The purpose is to gain.

[0012]

In the elevator door apparatus according to the present invention, a car door comprising a sliding door operated by a driving device for opening and closing a car entrance and exit of the elevator, and a sliding door comprising a sliding door for opening and closing a landing entrance of the elevator. A landing door, an engaging plate provided on the car door and facing the landing door when necessary, and an engaging plate provided on the landing door and engaging with the engaging plate when both the landing door and the car door face each other. An engagement mechanism for transmitting the operation of the car door to the landing door;
A detection means is provided on the side of the car door and faces the engagement mechanism when the two are opposed to each other. The detection means is operated when the pressing force by the engagement mechanism exceeds a predetermined value when the door of the car is closed.

Further, in the elevator door apparatus according to the present invention, there is provided a detecting means comprising a tape-like switch provided on the inner surface of the side wall of the door of the car in the groove shape of the engaging plate.

Further, in the elevator door apparatus according to the present invention, a detection switch provided on a car door and arranged outside the engagement plate and having an operating portion facing the engagement plate, and a cage having a groove-shaped engagement plate on one side. Between the actuating piece and the engaging plate and the opposing portion of the engaging plate and the actuating piece disposed opposite the actuating portion of the detection switch on the other side. There is provided a detecting means made of an elastic body interposed in the sensor.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 5 are views showing an example of an embodiment of the present invention. FIG. 1 is a front view of a car, FIG. 2 is a view corresponding to FIG. 9 showing a state where the car faces a landing, and FIG. FIG. 4 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a view corresponding to FIG. 2, showing another state of the engagement plate and the engagement mechanism. FIG. 5 is also a diagram corresponding to FIG. 2 showing another state of the engagement plate and the engagement mechanism. In addition,
Except for FIGS. 1 to 5, the elevator door device is configured in the same manner as in FIGS. 7 to 9 described above.

In the drawing, reference numeral 1 denotes a car which moves up and down a hoistway (not shown) of an elevator, 2 denotes a car doorway, 3 denotes a car door which comprises a sliding door and opens and closes a car doorway 2, and 4 denotes a link provided on the car 1. The mechanism is a driving device connected to the car door 3. Reference numeral 5 denotes an elevator control device, which is provided with a door opening / closing controller 6 connected to the drive device 4. Reference numeral 7 denotes an engaging plate provided on the car door 3, which has a cross-sectional groove shape, has a groove opening on the front surface of the car door 3, and has a longitudinal length.

Reference numeral 8 denotes an obstacle detector which is always provided on the edge of the door 3 of the car door 3 so as to protrude. When an obstacle is present at the car doorway 2, the car hits the obstacle and retreats to detect an abnormality. . 16 is an engagement mechanism 15 pivotally attached to the landing door 10.
Reference numeral 18 denotes a transfer trochanter whose intermediate portion is pivotally supported by one end of a rotating arm 17 which is pivotally supported by a stationary trochanter 16 axis.

Numeral 20 denotes a detecting means comprising a tape-like switch, which is provided on the inner surface of the side wall of the car door 3 on the side of the door pocket in the groove shape of the engaging plate 7 and is connected to the door opening / closing controller 6; The fixed trochanter 16 of the engagement mechanism 15 provided in
And operates when the pressing force of the stationary trochanter 16 exceeds a predetermined value when the door 3 of the car is closed.

G2 in FIGS. 2 and 3 is a gap between the transfer trowel 18 of the engagement mechanism 15 provided in the landing door 10 and the groove-shaped side wall of the engagement plate 7 facing the transfer trowel 18. is there. G1 in FIGS. 4 and 5 denotes a fixed trochanter 16 of the engaging mechanism 15 provided in the landing door 10 and a fixed trochanter 1.
6 is a gap between the engaging plate 7 and the groove-shaped side wall facing the engaging plate 6.

In the elevator door device constructed as described above, similarly to the elevator door device shown in FIGS. 7 to 9, when the car 1 is not opposed to the hall entrance 9, the lock device 13 is used. The hook 14 engages. This locks the landing door 10 and prevents the door from being opened.
Further, when the door 3 of the opened car closes, when there is an obstacle at the car doorway 2, the obstacle detector 8 hits the obstacle and retreats to detect an abnormality. Thereby, the door opening / closing controller 6 operates to perform abnormal time control such as closing the door 3 of the car by reversing the door.

When the car 1 faces the landing doorway 9, the stationary trochanter 16 and the transfer trowel 18 of the engaging mechanism 15 are arranged between the grooves of the engaging plate 7 as shown in FIG. ,
A gap G shown in FIG. 9 is formed between the engagement plate 7 and the stationary trochanter 16. Then, the transfer trochanter 18 is pressed by the engagement plate 7 by the initial operation of opening the door 3 of the car, and is transferred counterclockwise in FIG.

The rotating arm 1 due to the transfer of the transfer trochanter 18
7. The hook 14 is displaced through the operation of the operation link 19, and the landing door 10 is unlocked. Next, when the car door 3 is opened, the engaging mechanism 15 is sandwiched between the grooves of the engaging plate 7, and the landing door 10 is opened together with the car door 3.

In addition, the open car door 3 and the landing door 1
When 0 is closed, the door 3 of the car and the landing are closed by the engagement of the engagement plate 7 and the engagement mechanism 15 by the door closing operation of the car door 3 and the urging of the door closing device 11 of the landing door 10. Close the door together with door 10. When the car door 3 is fully closed, the transfer trochanter 18 in the groove of the engagement plate 7 moves to the previous position and the hook 1
4 is displaced, and the landing door 10 is locked.

Further, when the car door 3 and the landing door 10 that are opened are closed, the passenger holds the landing door 10 by hand or touches the body with the landing door 10 in order to get into the car 1. Or let it. As a result, an operation of stopping the landing door 10 or pushing it back in the door opening direction, that is, a state of preventing the landing door 10 from closing, occurs. In this state, the car door 3 is closed in the direction of arrow S2 shown in FIG. 2, and the landing door 10 is closed in the direction of arrow S5 shown in FIG.
That is, it is urged in the door opening direction.

As a result, a gap G2 is formed between the transfer trochanter 18 and the channel-shaped side wall of the engaging plate 7 facing the trochanter 18, and the detecting means 20 is pressed by the pressing force of the stationary trochanter 16 exceeding a predetermined value. Being working. By the operation of the detection means 20, the door opening / closing controller 6 operates to perform the reversing door opening operation of the car door 3, that is, the abnormal time control such as the opening operation of the car door 3 and the landing door 10 in the reversing door. Will be

As described above, the landing door 10 is pushed in the door closing direction by the passenger, the door closing operation is inhibited only for the landing door 10, and an obstacle is present in the door closing path of the landing door 10. When there is, the door device can be controlled at the time of abnormality through the operation of the detection means 20. The door closing operation is performed at a small cost regardless of the door closing resistance due to an obstacle in the door closing path of the landing door 10 by a device configuration mainly including the detection means 20 provided only on the side of the car door 3. This can prevent problems caused by this.

In the door closing operation in the normal state, the door 10 of the landing is closed in the direction of arrow S1 shown in FIG. 4 by the door closing device 11, but the car shown in FIG. Door 3 at the speed of arrow S2. Therefore, the transfer trowel 18 of the engagement mechanism 15 is pressed against the inner surface of the engagement plate 7 on the door stop side. Therefore, the fixed trochanter 1
Even if there is a gap G1 between the grooved side wall of the engaging plate 7 and the facing door 6, the door 3 of the car and the door 10 of the landing perform the door closing operation smoothly while maintaining the engagement relationship.

In the door opening operation in the normal state, the landing door 10 is urged by the door closing device 11 in the direction of arrow S3 shown in FIG. For this reason, even when the car door 3 opens in the direction of arrow S4 shown in FIG. 5, the transfer trochanter 18 of the engagement mechanism 15 is pressed against the inner surface of the engagement plate 7 on the door stop side.

Therefore, even if there is a gap G1 between the stationary trochanter 16 and the grooved side wall of the engaging plate 7 facing the stationary trochanter 16, the car door 3 and the landing door 10 maintain the engaging relationship and open smoothly. Operate. Then, since the gap G1 is maintained between the stationary trochanter 16 and the detecting means 20 in the door opening operation in the normal state,
The detecting means 20 does not operate. Therefore, it is possible to prevent a malfunction that the door device is controlled at the time of abnormality due to a malfunction of the detection means 20.

Further, by pressing the door 10 of the landing to be closed in the door opening direction, the door closing operation of at least the landing door 10 is interrupted via the detecting means 20. Therefore, when the passenger gets into the car 1, the door can be prevented from being closed by pressing the landing door 10 in the door opening direction, and the passenger can easily get into the car 1.

Embodiment 2 FIG. 6 is a view showing an example of another embodiment of the present invention, and is an enlarged view corresponding to a main part of FIG. Except for FIG. 6, an elevator door device is configured similarly to the above-described embodiment of FIGS. In the figure, the same reference numerals as those in FIGS.

Numeral 20 denotes a detection means, which is a detection switch 21 provided on the car door 3, one side of which is disposed to face the inner surface of the groove side wall on the door pocket side of the car door 3 of the engagement plate 7. The other side, which is bent out of the groove, is provided between the inner surface of the door 3 of the car door 3 of the car door 3 of the engagement plate 7 and the opposing surface of the operation piece 22. And an elastic body 23 attached to the engagement plate 7 and the operation piece 22.

In the elevator door apparatus constructed as described above, when the door closing operation of only the landing door 10 is obstructed, or when there is an obstacle in the door closing path of the landing door 10, The operating piece 22 is pressed by a pressing force of the engaging mechanism 15 exceeding a predetermined value. by this,
The elastic member 23 is compressed and the operating piece 22 is displaced to press the operating portion of the detection switch 21.

Then, since the detection switch 21 operates, that is, the detection means 20 operates, the door device can be controlled at the time of abnormality through this operation. Therefore, although detailed description is omitted, the same operation as the embodiment of FIGS. 1 to 5 can be obtained in the embodiment of FIG.

[0035]

As described above, the present invention relates to a car door comprising a sliding door operated by a drive device for opening and closing a car entrance of an elevator, a landing door comprising a sliding door for opening and closing the elevator entrance and exit, and a car. And an engaging plate provided on the landing door and facing the landing door when necessary, and a cage door provided on the landing door and engaging with the engaging plate when both the landing door and the car door face each other. An engagement mechanism for transmitting the operation to the landing door, and provided on the car door side, facing the engagement mechanism when the two oppose each other, and when the car door is closed, the pressing force by the engagement mechanism has a predetermined value. And a detecting means that operates when it exceeds the threshold.

Accordingly, when the car door and the landing door that are engaged with each other are closed, the door closing operation of only the landing door is obstructed, or an obstacle is present on the landing door closing path. If there is, the landing door is displaced relative to the car door. As a result, the detection means provided on the door side of the car is operated by being pressed by a pressing force exceeding a predetermined value by the engagement mechanism of the landing door. Then, the door device can be controlled at the time of abnormality through the operation of the detecting means, and with a small cost due to the device configuration mainly including the detecting means provided only on the door side of the car, only the landing door can be controlled. This has the effect of preventing a problem caused by continuing the door closing operation when there is a door closing resistance.

Further, as described above, the present invention is provided with a detecting means comprising a tape-shaped switch provided on the inner surface of the side wall of the door of the car in the groove shape of the engaging plate.

[0038] Thus, when the car door and the landing door that are engaged with each other are closed, the door closing operation of only the landing door is obstructed, or an obstacle is present in the landing door closing path. If there is, the landing door is displaced relative to the car door. Thereby, the detecting means consisting of the tape-like switch provided on the inner surface of the side wall on the door pocket side of the car door in the groove shape of the engaging plate provided on the car door is set to a predetermined value by the engaging mechanism of the landing door. It operates by being pressed by the pressing force exceeding. Then, the door device can be controlled at the time of abnormality through the operation of the detecting means, and with a small cost due to the device configuration mainly including the detecting means provided only on the door side of the car, only the landing door can be controlled. This has the effect of preventing a problem caused by continuing the door closing operation when there is a door closing resistance.

Further, as described above, the present invention provides a detection switch provided on a car door, which is disposed outside the engagement plate and whose operating portion is opposed to the engagement plate, and a cage door in which one side has a groove shape of the engagement plate. And the other side is bent between the engagement plate and the operation portion of the detection switch facing the operation portion of the detection switch, and is interposed between the engagement portion and the opposing portion of the operation plate. This is provided with a detecting means made of a mounted elastic body.

Thus, when the car door and the landing door that are engaged with each other are closed, the door closing operation of only the landing door is obstructed, or an obstacle is present on the landing door closing path. If there is, the landing door is displaced relative to the car door. Accordingly, the detection means including the detection switch, the operating piece, and the elastic body is pressed by the engagement mechanism of the landing door with a pressing force exceeding a predetermined value, and operates. And
The door device can be controlled at the time of abnormality through the operation of the detection means, and the door is closed only to the landing door at a low cost due to the configuration of the device that mainly includes the detection means provided only on the door side of the car. This has the effect of preventing a problem caused by continuing the door closing operation when there is resistance, beforehand.

[Brief description of the drawings]

FIG. 1 is a front view of a car showing a first embodiment of the present invention.

FIG. 2 is a view showing a state in which a car faces a landing, which is equivalent to FIG. 9 described later.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a diagram corresponding to FIG. 2, showing another state of the engagement plate and the engagement mechanism.

FIG. 5 is a view corresponding to FIG. 2, showing another state of the engagement plate and the engagement mechanism.

FIG. 6 is a view showing a second embodiment of the present invention, and is an enlarged view corresponding to a main part of FIG. 2;

FIG. 7 is a front view of a car showing a door device of a conventional elevator.

8 is a rear view of the landing where the car in FIG. 7 stops.

9 is an enlarged cross-sectional plan view showing a state of an entrance when the car of FIG. 7 faces the landing of FIG. 8;

[Explanation of symbols]

1 car, 2 car doorways, 3 car doors, 4 drives, 7 engaging plates, 9 landing doorways, 10 landing doors, 15
Engagement mechanism, 20 detection means, 21 detection switch, 2
2 Working piece, 23 elastic body.

Claims (3)

[Claims] 1. A car door comprising a sliding door operated by a driving device for opening and closing a car entrance of an elevator; a landing door comprising a sliding door for opening and closing a landing entrance of the elevator; and a car door provided on the car door. Sometimes, an engaging plate that faces the landing door, and when the landing door and the car door are provided on the landing door and both the landing door and the car door face each other, the engaging plate engages with the engaging plate to operate the car door. An engaging mechanism that transmits to the landing door, and is provided on the car door side and faces the engaging mechanism when the two oppose each other. When the car door is closed, the pressing force of the engaging mechanism is reduced. An elevator door device comprising: a detection unit that operates when a predetermined value is exceeded. 2. The elevator according to claim 1, wherein said detecting means comprises a tape-like switch provided on an inner surface of a side wall of the door of the car in a groove shape of the engaging plate. Door device. 3. A detection switch provided on a door of a car, disposed outside the engagement plate and having an operating portion facing the engagement plate, and one side of the detection device having a groove shape of the engagement plate on the side of the door of the car door. An operation piece disposed opposite to the inner surface of the side wall and bent out of the engagement plate, and the other side is interposed between an operation piece disposed opposite to the operation portion of the detection switch and an opposing portion of the engagement plate and the operation piece. 2. An elevator door device according to claim 1, wherein said elevator door device is made of an elastic material.