JPH02193884A - Door device for elevator cage - Google Patents

Abstract

PURPOSE:To prevent the rise and fall of a cage when a sliding door is incompletely closed due to a foreign material by setting the pushing length of a gate switch operated by the sliding door shorter than the facing distance between the chain lock element of the sliding door and the locking element of a lock device. CONSTITUTION:When a sliding door 4 is incompletely closed due to a foreign material at the time of starting a cage 3 from a hall, and its stop position is in a position just before full closed D longer than the pushing length A from the door close terminal end position, for example, 10mm, a gate switch 8 is not pushed. Therefore, the cage 3 can not be raised and lowered. When the sliding door 4 is incompletely closed and its stop position is in a position just before full close E shorter than the pushing length A from the door close terminal end position, for example, 8mm, a gate switch 6 is pushed. Thus, the cage 3 is raised. When a roller 9c is separated from a cam 2, an operating body 9a is rotated to achieve the locking by a lock device 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a locking structure for a 2% elevator corner door device.

[Conventional technology]

For example, as shown in Japanese Patent Publication No. 59-8630, a structure in which a lock stopper for locking a car door is operated by a cam provided in a hoistway is conventionally known. An elevator corner door device using such a cam and lock will be explained with reference to FIG.

In the figure, (11 is a hoistway having a landing (not shown).

(21 is a cam fixed to the hoistway (l) at a position corresponding to the landing in the vertical direction; (3) is a cam that moves up and down the hoistway (1).

A car that stops at a position opposite the landing (3a) is a car (3)
(41 is a sliding door supported by a handle provided at the top to open and close the doorway (3a); (51 is a drive mechanism provided at the base (1) to operate the sliding door (4); (6) Gate switch (7) that emits a lift-up signal (11) when the ladder (3) K is attached and pressed.
1i A pressing length A that is fixed to the sliding door (4) and placed corresponding to the gate switch (6) to press the gate switch (6) from just before the sliding door (41) is fully closed to the end of the door closing.
ft, a suppressor (8) is a lock protruding from the sliding door (4), (91 is a locking device provided on the cage (3),
In (9a), the intersection of the T-shaped side face and the leg is at the heel (3
1, the 2 legs extend horizontally, and a lock (9b) is formed at the tip of the sliding door. (91 is a roller that is pivotally supported at the tip of the hanging part of the actuator (9a) and is pressed by the cam (21); (9 (1) is the upward end of the actuator (9a) The operating body (9a
) in the counterclockwise direction in FIG. 2, and is a mechanism for blocking counterclockwise rotation at a predetermined position, and is a biasing section mainly composed of a compression coil spring.

The conventional elevator corner door device is constructed as described above, and the sliding door (41 is the reed at the end of the door closing).

When the car (31) is away from the landing, the Kept gate switch (6) is pressed by the suppressor (7), the manoyari lock (8) faces the lock stopper (9b), and the sliding door (41 is locked). The car (31) moves up and down the hoistway (1).Then, when the car 131 approaches the landing and the roller (9ri) is pressed by the cam (2), the actuating body (9a) moves as shown in FIG. Rotate clockwise to remove the lock from the lock (8) to the lock (9b).
is released and unlocked, and the sliding door (4) is opened by the driving mechanism (5).
The door is opened.

Note that the two sliding doors (4) that are closed are urged in the door closing direction by the drive mechanism (5).

In addition, when the car (31) is running, if a passenger inside the car (31 or even a friend) tries to pry open the sliding door (41).

When the sliding door (4) is opened by the facing distance B, the lock latch (
The lock (81) comes into contact with the door opening (9b) and prevents the door from opening.Then, when the sliding door (41 moves the facing distance B by prying it open), the suppressor (71
The pressing length ^ is set to be longer than the facing distance B.

[Problem to be solved by the invention]

The conventional elevator corner door device as described above is a device in which the lock detection contact of the two-lock device (9) is omitted, and is generally used in small elevators such as residential ones because it has an easy configuration and can be manufactured at low cost. used for. In such a door device, when the sliding door (4) is closed, the sliding door (41) may not be fully closed due to foreign objects being caught in the door, and the sliding door (41) may be pushed for a pressing length A longer than the facing distance B from the closing end position. It is conceivable that the sliding door (4) may stop at position C just before fully closing. When the sliding door (4) is incompletely closed, the locking device (91) is in the unlocked state and the gate switch (6) is in the suppressed state. The car (3), which is stopped, can be raised and lowered, and will go up and down when a driving command is issued.Then, while the car (3) is being raised or lowered when the sliding door (4) is incompletely closed, the sliding door (4) When it is forced open, the sliding door +41Fi is opened and the cage (3) is stopped by releasing the suppression of the gate switch (6).For this reason, the door (3) is thought to be incompletely closed, but when the sliding door (4) is forced open, the car (3) stops. There was a problem with the sliding door (4) because it stopped with the door open, which could have caused a passenger to fall.

This invention was made to solve this problem, and a car with an incompletely closed door cannot be raised or lowered.

Another object of the present invention is to obtain a door device for an elevator corner that can be raised and lowered but whose sliding door cannot be opened.

[Means to solve the problem]

In the elevator corner door device according to the present invention, the facing distance B between the locking element and the locking element is set to be longer than the pressing length A by the pressing body.

[Effect]

In the elevator corner door device configured as described above, when the door is incompletely closed due to a foreign object, etc., if the stopping position of the sliding door is just before fully closing, which is longer than the pressing length A from the closing end position, the gate switch is activated. is not pressed, and if the sliding door stops at position E, just before fully closing, which is shorter than the pressing length A from the closing end position, the gate switch is pressed and the two-lock device becomes lockable.

〔Example〕

Figure 1 shows one embodiment of this invention.
The same reference numerals as in the figure indicate corresponding parts, and the suppression length A during which the suppression body (71) presses the gate switch (6) from just before the sliding door (4) is fully closed to the end of the door closing is set to, for example, 9 mm. .Furthermore, when the sliding door (4) is at the closed end, the facing distance B when the locking element (9b) faces the locking element (8) is set to be longer than the pressing length A, for example, 12 mm. Ru.

In the elevator corner door device configured as described above, when the car (3) departs from the landing, the sliding door (4) is incompletely closed due to a foreign object, etc., and its stopping position is pushed away from the door closing end position. Position 9 just before fully closed, which has a long length A
For example, if it is 10 mm, the gate switch (6
) is not pressed, so the heel (31) cannot be raised or lowered.

In addition, if the sliding door (41) is incompletely closed and its stop position # is shorter than the pressing length A from the door closing end position just before fully closing, the gate switch (6) will be pressed. Nodekato (3) goes up and down.Then, the rollers (
When 9ri leaves the cam (2), the actuating body (9a) rotates and locking is achieved by the locking device (91).This may be because (31 is being raised and lowered and the roller (9C) is not in contact with the cam (2). )
When the sliding door (4) is forcibly opened in a state where it is separated from the door, the lock (8) comes into contact with the lock (9b) and moves in the door opening direction, and the gate switch (6) is no longer pressed.

Therefore, although the car (3) stops, the sliding door (4)
(3) This can prevent accidents such as passengers falling from the car (21) and before the rollers (9C) leave the cam (2) after the car (21) leaves the landing. When the sliding door (41) is pried open, the locking device (4) is in the unlocked state, so the sliding door (41) is opened. However, when the sliding door (4ν) is opened, the heel (3) stops, and the length of the cam (2) The distance from the floor of the landing to the top and bottom is about 300 mm and 17 meters respectively (31
The stopping position a is near the landing, and passengers trying to escape from the car (3) can rush to the landing.

Also, empirically, the suppression length A t' mi') meters.

By setting the opposing distance Bit to 2 mm, most problems caused by incomplete closing of the sliding door (4) due to foreign objects can be prevented.

〔Effect of the invention〕

As explained above, in this invention, the suppression length A of the gate switch operated by the sliding door is set to be shorter than the facing distance B between the locking element of the sliding door and the locking element of the locking device. As a result, when the sliding door is incompletely closed due to a foreign object, the car cannot be raised or lowered, or the sliding door cannot be opened even though it can be raised and lowered. Therefore, it is possible to realize an elevator door device which has a simple structure without an electrical contact for locking confirmation, and which is highly safe and has fewer defects due to incomplete closing of the sliding door due to foreign objects.

[Brief explanation of the drawing]

FIG. 1 is a conceptual front view of an elevator system showing an embodiment of the elevator corner door system according to the present invention, and FIG. 2 is a view corresponding to FIG. 1 showing a conventional elevator corner door system. +11... Hoistway, (3)... Car, (3a)・
...Entrance/exit, (4)...Sliding door, (61...Gate switch, (7)...Suppression body, (8)...Lock lock,
(9)...Lock device, (9b)...Lock stopper. Note that the same parts in Figure 9 are indicated by the same symbols.

Claims (1)

[Claims] A sliding door that opens and closes the entrance of the car that goes up and down the hoistway and stops at a position opposite the landing, and a sliding door that is attached to the sliding door in correspondence with a gate switch provided on the car, and extends from just before the sliding door is fully closed to the end of the door closing. A locking device comprising a pressing body having a pressing length and a drive mechanism, which is attached to the car and is held in a locked position when the car is outside the landing facing position; A door device for an elevator car, comprising a lock that faces a lock of the sliding door with a facing distance longer than the pressing length when the sliding door is at the end of closing the door.