JPH038689A - Cage door driving device of elevator - Google Patents

Abstract

PURPOSE:To extend a rescue space for passengers, escape by providing an attachable and removable transmitting means of rotating force between the motor side and link side of a door driving device, and loosening a fixing means in case of emergency to move the door driving device to a determined emergency position. CONSTITUTION:When a motor 17 is driven, a rotating driving plate 16 is rotated through a pulley 20 and a belt 21 rotated through clutches 18, 19, and a cage door is opened and closed through links 30, 31. When an accident such as service interruption occurs to leave a cage 10 in stopped state, a thumbscrew 27 is loosen to move a door driving device 7 in the arrowed direction. Hence, the protruding body of a coupling 18 is separated from the channel of a coupling 19 to release the engagement, further slid on a rail, and moved to a determined emergency position 7b, and the passengers in the cage 10 can easily escape to the outside from a rescue space 6 having the opening part extended by this movement.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a door drive device provided at the top of an elevator car.

[Prior Art] FIG. 7 is a front view showing the configuration of a door driving device disclosed in, for example, Japanese Patent Application Laid-Open No. 83-123790.

In the figure, (23) is the door opening, (24), (
24a) Car door, (25) Car door (24), (
24a) is the upper rail, (25a) is the lower rail, (2B) is the door building material for the car door (24), (
28a) Door building material components for the car door (24a), (2
7) is an arm erected at the outer end of the door building material member (2B), and (27a) is an arm erected at the outer end of the door building material member (2[ia) in the same manner as arm (27). .

(7) is the drive mechanism that opens and closes the door, (2a) is the mounting material to which the drive mechanism (7) is fixed, and (1B) is the drive mechanism (
The rotary drive panel (7), (30) and (31) are the car door (
24) link forming the opening/closing link mechanism, (32)
and (33) are links forming a link mechanism for opening and closing the car door (24a).

In the door drive device configured as described above, the drive mechanism (
When the rotary drive plate (1B) rotates counterclockwise due to the action of 7), this rotary drive! Link (30) and link (32) fixed to (ill) also rotate at the same time. The tips of the links (30) and (32) are connected to the links (31) and (33) by, for example, pin joints.
are rotatably connected, the link (31) connects the arm (27) which is erected at the end of the door building material member (2B) of the car door (24), and the link (33) connects the car door door(
The arms (27a), which are erected at the end of the door building material member (26a) of 24a), are pressed in the left and right direction of the door opening, so that the car door (24) is pushed by this pressing force.
.

(24a) are opened to the left and right, respectively.

Further, FIG. 8 is a front view showing an example of a hanging wheel mounting device in a conventional elevator disclosed in Japanese Patent Application Laid-Open No. 61-24887, and FIG. 9 is a plan view thereof.
) The lower beam (34) fixed to the bottom of the car floor (34) and the car beam (36) are connected with bolts, etc., and then the car beam (
36) and the upper beam (37) are joined.

At the bottom of the upper beam (37), the suspension car attachment beam (38) is still perpendicular to the car beam (3B), and the car beam (3B) and the connecting member (3
The car (lO) is suspended by a main lobe (11) that extends over a suspension wheel (5) which is connected to a suspension wheel (5) and is rotatably provided on a suspension wheel attachment beam (38).

[Problems to be Solved by the Invention] In the conventional elevators shown in FIGS.
0) remains stopped in the middle of the hoistway, and if it becomes necessary to quickly evacuate passengers trapped in the car (10), use a small elevator with a small passenger capacity or a two-way exit. In elevators with entrances and exits, the car (
Beam (38) supporting the hanging wheel (5) at the top of lO)
There is a problem in that it is difficult to quickly and smoothly perform the evacuation work because there is not enough rescue space for the passengers to escape due to the door drive system.

This invention was made in order to solve the above-mentioned problem, and it is an object of the present invention to provide an elevator that allows passengers inside the car to quickly and smoothly escape to the outside when the car makes an emergency stop in the middle of the hoistway. With the goal.

[Means for Solving the Problems] The elevator car door drive device according to the present invention has a rotary force generator that can be attached and detached between the motor side and the link side of the door drive device that opens and closes the car door via a link or the like. A transmission means is provided, and when the means that fixes the door drive device on the car during normal operation is loosened in an emergency and the door drive device is moved, the engagement of the transmission means is released and the door drive device is moved to a predetermined position. It is equipped with a sliding means that allows it to move up to

[Function] The car door drive device of the present invention expands the rescue space for passengers to escape by loosening the fixing means and moving it from the fixed position in normal conditions to the predetermined position in emergency situations.

[Embodiment] FIG. 1 is a plan view of an elevator having entrances and exits in two opposing directions according to an embodiment of the present invention, and FIG. 2 is a front view thereof. In the figure, (1) is the car rail, (2) is the car rail, (
2a) is an upper beam, and a hanging wheel (5) is rotatably provided in the center, and the cage (lO) is supported at both ends by vertical beams (3) connected with bolts, etc. There is. (5
a) is a cage ceiling with lighting equipment etc. installed above, (
6) is the rescue space required for escaping passengers in the car (10) in the event of an emergency accident caused by a power outage, etc.;
Reference numeral 7) denotes a front door drive device (hereinafter referred to as a door drive device) which serves as a power source for opening and closing the car door (not shown), and is fixed to the girder (4) with screws as described later.

(7a) is a rear door drive device that serves as a power source for opening and closing a car door (not shown) on the side opposite to the car door, and is fixed to the girder (4a). (8) is a cover for the hanging wheel (5), (8a) is the frame of the hanging wheel (5), (9) is a vibration-proof rubber, and (11) is the main rope that suspends the basket (10).

Figure 3 shows the door drive device (7) in Figures 1 and 2.
FIG. 4 is a front view, FIG. 5 is a side view, and FIG. 6 is a perspective view of the main parts. In FIGS. 3 to 6, (71) is the main body of the drive device, (72) is a thumbscrew for fastening and fixing the door drive device (7) to the mounting plate (12), (13) is a buffer member, (14) A rail connected to the mounting plate (41) on the girder (4) side, (15) fixed to the girder (4) side, to which the rotating drive plate (1B) and V-pulley (20) are attached. The L-shaped support plate (18) is connected to the output shaft of the motor (17), and the coupling (18) has a protrusion formed around the shaft center.
Reference numeral 19) is a coupling that is coupled to the V-pulley (20) and has a groove that engages with the protrusion of the coupling (19) around its axis. (30) is a link, one end of which is pivotally fixed to a rotation drive plate (its), and the other end of which is rotatably connected to a link (31).

In the car door drive device of the present invention having the above-described configuration, each time the car (10) stops at the landing of each floor, the motor (17) is activated by a command from a control device (not shown).
) is driven and rotates via clutch (1g), (19) ■Boot 9 (20) and V pulley (20) and V
A rotary driving plate (1B) is rotated via a belt (21), and this rotation is converted into a linear driving force by the operation of links (30) and (31) to open and close a car door (not shown).

Here, if an accident such as a power outage occurs and the car (10) remains in a stopped state, the thumbscrews shown in Figs. 72)
, and move the door drive device (7) in the direction of the arrow shown in FIG. As a result, the protrusion of the coupling (18) separates from the groove of the coupling (19) and releases their engagement, and then slides on the rail (14) to move the diagonal line in the figure to the dashed-double line. The passenger inside the car (lO) can easily escape to the outside from the rescue space (6) whose opening has been enlarged by this movement.

In the above embodiments, an elevator car having entrances and exits in two opposing directions has been described as an example, but the present invention can be similarly practiced with respect to a car that has an entrance and exit on only one side.

[Effects of the Invention] As described above, according to the present invention, when the elevator car is stopped due to an accident such as a power outage, the door drive device that opens and closes the car door is moved from its fixed position during normal operation. Since the rescue space for allowing passengers inside the car to escape to the outside is expanded, it is possible to easily rescue passengers in the event of an emergency even in an elevator where it is difficult to set up a rescue space.

[Brief explanation of drawings]

FIG. 1 is a plan view showing the configuration of an elevator car according to an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a detailed configuration and mounting structure of the door drive device in FIGS. 1 and 2. 4 is a front view, FIG. 5 is a side view, FIG. 6 is a perspective view of the main parts, and FIG. 7 is a front view of an example of a conventional elevator door drive device. , FIG. 8 is a front view showing an example of a conventional elevator suspension wheel mounting device,
FIG. 9 is a plan view thereof. (7), (7a) is a door drive device, (10) is a basket,
(12) is the mounting plate, (14) is the rail, (17) is the motor, (18) and (19) are the couplings, (30)
, (31) is a link, and (72) is a thumbscrew. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In an elevator in which car doors are opened and closed via a link or the like by a door drive device provided at the top of the car, there is provided a detachable rotary force motor provided between the motor of the door drive device and the link or the like. a transmission means, a means for fixing the door drive device on the car during normal operation, and a means for releasing the engagement of the transmission means by loosening the fixing means and moving the door drive device in an emergency; 1. A car door drive device for an elevator, comprising a sliding means for stopping the device at a predetermined position.