JPS5817089A - 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 This invention relates to an elevator door device, and more particularly to a locking device for locking a car door and a landing door.

FIGS. 1 and 2 show a conventional elevator door device. In FIG.
(Driver attached to the top of 3I scale 111, (4)
is a distance piece (4m) near the top of the entrance/exit (2).
) A door rail (51 is a hanging wheel (5a
The door 71 is suspended via m).

The upper end of 161 is suspended by the door hanger (51), and the lower end is guided by a groove provided in the floor (not shown) of doorway (21) to open and close the sliding door (21). One end is connected to the drive machine (31).

The other end is a drive arm consisting of a double link connected to the car door (61&C), (81 is a locking device attached to the door 71 (51), and the following (8a) to (8e) * (8j) to
It is composed of (8•), (8n) e (8r) e (8') and (Stl). That is,
(8m) is a fixed plate consisting of long pillars with a 5-shaped cross section.
- side upright against the car door (61 side), the other side extending in the direction in which the car door (61) is fully closed, and fixed to the door hanger (5) via the distance piece (8b). (8c) and (8d) are the fixing plates (8c) and (8d), respectively.
a) Door hanger (shaft planted on the 51 side surface,
(8e) consists of a band-shaped member.

An actuating piece pivotally connected to the fixed plate (8a) via the shaft (8e) f.

(8j) is a roller pivotally attached to the end of the fully closed side of the actuating piece (8・), (8k) is a band-shaped member, and the shaft (8d)
) a connecting piece pivotally connected to the fixing plate (8a) via 1;
(8n) is a movable plate consisting of a long column with a 4-shaped cross section, and is installed on the fully open side of the car door (6) with respect to the fixed plate (8m), with the - side facing the car door (61 side). It is stood upright, parallel to the fixed plate (81) with the gap facing each other, and the other side extends in the direction in which the car door (61) is fully opened.

The operating piece (8e) and the connecting piece (8k) are parallel to each other so that the upper part is pivotally connected to the operating piece (8e), and the lower part is pivotally connected to the connecting piece (8k). (8r) has one end locked to the end of the actuation piece (8e) on the movable plate (8n) side, and the other end to the door hanger (51), which is a biasing force formed by a tensioned coil spring. With your body.

It acts to always narrow the gap formed by the fixed plate (8a) and the movable plate (8n).

(8t) Kago Wataru (6
) is closed to the position immediately before fully closed, and then after the fully closed state is reached, the above roller (8j) is
It is arranged so as to be pushed down against the Q biasing body (8r). (9) is fixedly installed on the landing door (9a), and the locking device (
This is a body to be held that is inserted between the fixed plate (8a) and the movable plate (8n) of 81.

In the elevator door device configured as described above, when the car door (61) is fully closed, the roller (8j) is moved by the cam (8j).
t), and the movable plate (8n) is pressed down by the biasing body (8r
) is in a raised position against the urging force of

Therefore, the distance between the fixed plate (8a) and the movable plate (8n) is widened to create a gap between them and the object to be held (9).

Therefore, the ligating device (81) and the ligated body (9) are not ligated.

Next, when the car door (61) is opened, the car door (61 is opened by the driver (31), and the roller (8j) 6! cam (
8t), the biasing force of the biasing body (8r) causes the first actuating piece (8.) to move from the shaft (8a). Center it again.

The connecting pieces (8k) are each connected to the first
Rotates counterclockwise in the figure. The body to be held (9) is held between the fixed plate (8a) and the movable plate (8n) by the groove. This kind of binding device (81 and the body to be joined (9)
The car door (6) and the landing door (9a) engage with each other through engagement with the car door (6) and the landing door (9a). In this state, the car door (6) and the landing door (9a) (
Hereinafter, the cage door (referred to as 61 etc.) is opened.

After the car door (61) is fully opened, the connection between the car door (61) and the landing door (9a) is maintained.

Next, if the car door is fully opened (61 etc. is closed,
When the driver (31) is rotated counterclockwise in FIG. When the cam is fully closed, the roller (8j) engages with the lower surface (8tl) of the cam (8t).

The operating piece (8) rotates clockwise in FIG. 1 around the shaft (8c) and the connecting piece (8k) around the shaft (8d), and the fixed plate (8a) and a movable plate (
The distance between the car door (6) and the landing door (9m) has been widened.
) becomes a non-coherent state and is completely closed.

However, when Passenger 9 was in the process of closing door 1 and was trying to get on car 11, he collided with the landing door (9a), especially immediately after the door had started closing, or if he was halfway through door closing. In this case, only the landing door is temporarily prevented from closing.In other words, the movement of the secured body (9) is restrained and stopped, so the movable plate (8n) A force is applied to the actuating piece (8r) against the biasing force of the first biasing body (8r).
) and the connecting piece (8k) are arranged horizontally, and the gap between the fixed plate (8m) and the movable plate (8+1) is widened to the maximum.

Therefore, the ninth landing door (9a) is displaced relative to the car door (6). Then, the fixing plate (8m) and the object to be fixed (9m)
) A large gap is created between them. At this time, the first landing door (9m)
When the blocking condition is removed, the object to be locked (91 is the drive machine
The door closing force of 3; and the biasing body (8r) acting on the movable plate (8n)
), the 9th landing door (9a) is closed at a speed of 61 or higher.

And the 9th landing door (9a) is a cage door (4.lJi from 61)
:, when the object to be joined (9) is about to move, the fixed plate (8
&) and makes a collision sound. Furthermore, the movable plate (9) reverses or decelerates due to the reaction of the collision.
8n), the main collision occurred. Since the landing door (9a) repeats such relative displacement with respect to the car door (6) several times, there is a problem in that the door cannot be closed smoothly.

This invention solves the above-mentioned problems.

A retaining device includes a fixed plate, a movable plate facing the fixed plate with a gap, and a biasing body and an actuating piece that reversibly displace the movable plate to narrow and widen the gap. In an elevator door device equipped with a secured body disposed in the gap formed by the fixed plate and the movable plate of the securing device, the movable member is disposed in the gap formed by the fixed plate and the movable plate during the opening/closing operation of the nine doors. A locking device is provided to restrict the movement of the plate, and the opening/closing operation of the landing door or the door is temporarily prevented by preventing a large gap from forming between the engaging device and the engaged object. The purpose of this book is to obtain an elevator door device that can prevent relative displacement even if the door is opened and closed in a quiet and smooth manner.

An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.

The locking device and the locked body in this embodiment are the same as those in the conventional example, and a locking device shown below is added to this device.
α is a locking device attached to the door hanger (51), and is composed of the following (1oa) to (101). That is, (10m) is a shaft installed in the door hanger (5), and the shaft (8C ) is located slightly on the fully closed side from the position of the straight line hanging from the axis (10
m) is provided near the axis (8C). (10b)
A box-shaped link with a semi-circular tip at the end (
IQe) and.

It is composed of a roller support part (10d) and 9 bent parts (
It is pivotally mounted to a shaft (10m) with a 10. (10f)
is a shaft implanted at the end of the roller support part (10d).

(10g) is a roller pivotally mounted on the shaft (10f), (
10h) is a pin y planted in the roller support part (10d),
(toi) Door hanger (Stock installed on 51, <-, (10j) is the door hanger (pin installed on 51, (tOk) is the pin (10h) and pin (10j)
A biasing body consisting of a tension coil spring tensioned between the lobes constantly applies a biasing force to the link (lob) in a clockwise direction in FIG. 3 about the axis (10 m). (1
01) With a cam fixed to the heel (1), the car door (6)
The roller (8j) is arranged so as to engage the roller (10g) when the car door (6:) is slightly closer to the fully open side than the position where the roller (8j) engages the cam (8t) just before the car door is fully closed.

In the elevator door device configured as described above, when the car door (61) is fully closed, the roller (
10g) rides on the cam (101).

The link (10b) rotates the shaft (10m) counterclockwise in FIG.

It is located where it will not interfere with the actuating piece (8).

Next, when the car door (61) opens, first open the roller (8j
) begins to separate from the cam (8t), and the first actuating piece (8.) rotates in the direction shown by arrow A in Fig. 3 with the axis (8e) t-center due to the biasing force of the biasing body (8r), and becomes movable. The plate (8m) moves in the direction of the fixed plate (8m) to narrow the gap, and the car door (6) and landing door (9m) engage with each other while sandwiching the engaging body (9). Also, due to the urging force of the urging body (10k), the link (10b) is moved slightly behind the actuating piece (8), and the shaft (10
m) Rotate around the 'e center as shown by arrow B in Figure 3 and stop when it hits the stopper (101). That is, as shown in FIG.

At this time, the ramming head (10e) faces the actuating piece (8.) with a slight gap 01 in between, as shown in FIG.

Also, the point where the ramming head (10e) faces the actuating piece (8) is located between the center of the shaft (8c) and the roller (8j), as shown in Figure 4.
A straight line m connecting the center of the pivot portion of the shaft (10m) and a straight line n connecting the center of the rammed head (10e) are arranged to form a right angle to each other.

Thereafter, it is fully opened in the above state, and even after being fully opened, the above state is maintained.

Next, the car door is fully opened (when 61 closes, it is 1).

The fully open state, that is, the state shown in FIG. 4 as described above, is maintained and the valve is closed just before fully closing. Immediately before full opening, the roller (4ag) rides on the force A (101) and rotates the link (1ob)' (i-in the direction shown by the arrow in FIG. 4) to lower the thrust head (10e). The roller (8j) is pushed by the lower surface (8tl) of the cam (8t) a little later than the above roller (10g), and the actuating piece (8.)
is rotated in the direction shown by arrow C in FIG. In this way, the car door (6) is fully closed while avoiding interference between the operating piece (8) and the link (10b). That is, the state shown in FIG. 3 is reached. At this time, the car door (6) and the landing door (9a) are not aligned, as described in the above conventional example.

In the above embodiment, the door closing prevention condition is applied only to the landing door (9a) due to a passenger collision or the like when the nine doors are closed. That is, when a force in the door opening direction is applied from the engaging body (9) to the movable plate (8n), the actuating piece (8e) 9 will rotate about the shaft (8e) in the direction shown by arrow C in Fig. 4. However, the actuating piece (8e) moves by the gap G shown in FIG. 4, immediately collides with the ramming head (10c), and stops. Therefore, even if a passenger collides with the landing door (9a) while one door is closing, the fixed plate (
Since the gap between the movable plate (8m) and the movable plate (8n) hardly widens and the engaging body (9) remains firmly clamped, the landing door (9m) is displaced relative to the car door (61). Therefore, the fixed body (9) and the fixing plate (8a
) and the movable plate (8n), so there is no collision noise.

Quiet and smooth door closing operation can be achieved.

In addition, the car door (6) is pushed downward by the reaction force of the biasing body (8r) from just before fully closing when the roller (8j) and cam (8t) engage to fully closing, but the car door (6) is pushed downward by the reaction force of the urging member (8r). Due to engagement with the cam (101), the reaction force of the biasing body (10k) acts to push the car door (61) upward, so each reaction force acts to cancel each other out. In the embodiment, the axis (10
m) is located slightly on the fully closed side, but the suspension wheel (
Since it is sufficiently close to the installation width of 5 m) (5 m), the rotational moment due to the reaction force of the biasing body (8r) and (10k) can be ignored. Therefore, the biasing body (8r)
If the biasing force of (10k) and (10k) are selected appropriately, the hanging wheel (
Since the load applied to each of the wheels (5m) can be made equal, there is no possibility that only one of the pulling wheels (5m) will wear out quickly.

In the above embodiment, the movable plate (8n) is disposed on the fully open side of the fixed plate (8a), but even if it is disposed on the fully closed side, the operation will be the same as in the above embodiment.・
It is something to do.

In addition, in the above embodiment, the locking device (81) is provided at the car door (6), and the locking device (81) is installed at the locked object (9) and all the landing doors (9a). Even if the object to be secured (9) is provided in the car door (61) in 9a), it functions in the same manner as in the above embodiment.

As described above, the present invention includes a fixed plate that is fixedly installed with its longitudinal direction in the vertical direction, and a movable plate that is opposed to the fixed plate across a gap and that constantly narrows the gap by a biasing body. A retaining device equipped with an operating piece that widens the gap by driving the movable plate against the biasing body when the plate, car door, and landing door are closed is installed on the car furnace side or the landing door side. When the car door and the landing door are closed, the engagement device is disengaged due to the widening of the gap, and when the car door and the landing door are open, the engagement device is disengaged from the engagement device. In an elevator door device that opens and closes the car door and the landing door by engaging the car door and the landing door by providing a locked body that is engaged with the engaging device due to the narrow width of the car door or the landing door, the movable A locking device is provided to prevent the movable plate from being driven by the object to be engaged and widen the gap when the plates are narrowing the gap and clamping the object. Even if the car door or the landing door to which the secured body is fixed is prevented from opening or closing when the car door or landing door is engaged with the landing door and opening/closing, the movable plate will almost widen the gap. The object to be joined remains held in place without any movement.

For this reason, there will be no relative displacement between the 1st landing door and the car door.

The effect is that the door can be opened and closed smoothly, and at the same time, the collision noise between the engagement device and the object to be engaged, which is caused by the relative displacement, is eliminated, so that the door can be opened and closed quietly. It has the following.

[Brief explanation of drawings]

1 and 2 show a conventional elevator door device.
The sectional view, FIG. 3, and FIG. 4 are detailed front views of essential parts showing one embodiment of the present invention. In the figure, (61 is a door, (81 is a locking device, (
8m) is the fixed plate, (8e) is the actuating piece, (8k)
is an interlocking piece, (8n) is a movable plate, (8r) is a biasing body, (91 is a secured body, (9m) is a landing door, (1
01 is a locking device. Note that the same numbers in Figure 9 indicate the same or corresponding parts. Agent Shin Kuzuno −

Claims (1)

[Claims] (11) A fixing plate fixed to either the car furnace side or the landing door side and disposed with its longitudinal end facing in the vertical direction. A movable plate that narrows the gap by a biasing body is engaged with the movable plate, and when the car door and landing door are closed, the movable plate is driven against the biasing body to reduce the width of the gap. A retaining device comprising an actuating piece for widening the gap and a connecting piece that moves in conjunction with the actuating piece through the movable plate, one end of which is fixed to the other side of the car furnace or the landing door. In the device, the object is disposed in the gap and is held between the fixed plate and the movable plate due to the narrow width of the gap.The object is held between the movable plate and the fixed plate. By blocking the movement of at least four of the actuating piece and the connecting piece, the movable plate is driven by the body to be held and closes the gap. An elevator door device characterized by being provided with a locking device that prevents the door from widening. (2) The locking device is rotatably pivoted to the car furnace side or the landing door side where the locking device is provided. A link having one end serving as a bump for preventing movement of the actuating piece of the locking device, and a roller pivotally attached to the other end, and one end of this link engaging the roller side with respect to the shaft. a biasing body whose other end is secured to a car furnace side or a landing door side where the above-mentioned engagement device is provided, and which is stretched so as to rotate the above-mentioned link in one direction; a stopper that prevents rotation of the link when the line connecting the bulge of the link and the shaft becomes substantially perpendicular to the operating piece of the engagement device when the link is rotated by the body; A cam that engages with the roller and rotates the link in the other direction against the biasing body before the operating piece of the engagement device drives the movable plate. An elevator door device according to claim 1, characterized in that: