JPH03211184A - Elevator door opening/closing device - 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] The present invention relates to an elevator door opening/closing device in which a driving side door and a driven side door are connected to an interlocking lobe.

[Prior Art] Fig. 3 is a front view of a conventional elevator landing side door opening/closing device as seen from the hoistway side (for example, the
(See Publication No. 481). In the figure, (3) is a drive roller fixed to the drive side door (1) on the landing side;
) is an engagement vane fixed to the car side door (not shown), and when the drive roller (3) and the engagement vane (4) engage, the operation of the car side door is controlled by the drive side on the landing side. It is sent to the door (1). The drive side door (1) to which the drive roller (3) is fixed has a hanger plate (14)
It is attached to the interlocking rope (7) via a fitting (5) fixed to. (2) is a driven side door, which is attached to the interlocking lobe (7) on the side opposite to the driving side door (1) via a fitting (6) fixed to the hanger plate (14a). (12) and (13) are the drive side door (
Door shoes attached to the bottom of the door (1) and the driven door (2) respectively guide both doors (1) and (2) in the opening and closing directions.

(8) and (10) have one end connected to the drive side door (1
) and a link connected to the driven side door (2), (9),
(11) is attached to the fixed part and links (8), (10
) with a spring that always biases the link (8), (
10) and springs (9) and (11) constitute door closing devices (15) and (1B), respectively.

Next, the operation will be explained. The driving force transmitted from the car side door to the bath side door via the drive roller (3) and the engagement vane (4) is transmitted to the interlocking rope (7) via the mounting bracket (5), and (7) is moved in the direction of arrow a. As a result, the driven door (2) moves in the opposite direction to the driving door (1) at the same speed, opening the door. At this time, both doors (1) and (2) are closed by the spring of the door closing device (
9), receives a force in the door closing direction due to the elastic force of (1, 1) and the weight of links (8), (10).

[Problems to be Solved by the Invention] Since the conventional elevator landing door device is configured as described above, the drive point of the driven side door (2) is located at the position of the mounting bracket (6), that is, above. On the other hand, the points of action of the door closing force by the door closing device (16) and the reaction force due to the friction of the door shoe (13) are located near the bottom and are far apart. Therefore, when the door is opened, a large counterclockwise moment acts on the center of gravity of the driven door (2) due to the driving force, the reaction force of the door closing device, and the friction reaction force of the door shoe (1, 3). There were problems such as the door tilting due to the acceleration of the driving point and the door vibrating during opening and closing.

This invention was made to solve the above-mentioned problems, and it eliminates the inclination of the door and realizes smooth door opening/closing operation, is stable even with larger accelerations, and shortens the opening/closing time. The purpose is to obtain an elevator door opening/closing device.

[Means for Solving the Problems] The elevator door opening/closing device according to the present invention sets the attachment position of the link constituting the door closing device of the driving side door and the driven side door to the driving force point when opening the door of each door. It is located close to the

[Function] In the elevator door opening/closing device according to the present invention, the moment acting on the center of gravity of the door is reduced, so the opening/closing of the door becomes more stable and the opening/closing time of the door can be shortened.

Embodiment FIG. 1 is a front view of an embodiment of the present invention seen from the hoistway side. The driving side door (1) and the driven side door (2) are fixed to the interlocking rope (7) by fittings (5) and (8), respectively, as in the conventional case, and a door shoe (
12) and (13) are attached. A link (8) is attached to the drive side door (1) near the drive roller (3), and a door closing device (
15). On the other hand, a link (10) is attached above the driven door (2), and together with a spring (11) constitutes a door closing device (1B).

In the embodiment of the present invention, the point of driving force when opening the drive-side door (1) is located at the drive roller (3), and the point of action of the door-closing reaction force is located at the attachment portion of the link (8). On the other hand, the driving force point when opening the driven side door (2) is at the mounting bracket (6).
The point of action of the door closing reaction force is at the attachment part of the link (10). Therefore, for both the driving side door (1) and the driven side door (2), the driving force point when the door is opened and the point of action of the door closing reaction force are close to each other, so that the moment for the center of gravity is reduced.

FIG. 2 is an explanatory diagram of an embodiment in which the present invention is implemented in an elevator with four double doors. (1), (la) are the drive side high speed door and the drive side low speed door, (2), (2)
a) is a driven side high speed door and a driven side low speed door. The driving-side high-speed door (1) and the driven-side high-speed door (2) are each fixed to the interlocking lobe (A) by a mounting bracket (5) and a beam 6). (8) is a link on the drive side, one end is attached near the drive roller (3) of the drive side high speed door (1), the middle part is connected to the almost central part of the drive side low speed door (1a), and the other end is attached to the drive roller (3) of the drive side high speed door (1). It is connected to the cover spring (9) and constitutes a drive-side door closing device (15). (10) is a link on the driven side; one end is connected to the upper part of the driven high-speed door (2), the middle part is connected to the approximate center of the low-speed driven door (2a), and the other end is connected to the floor ( 17) and is fixed to the floor surface (
A spring (11) is interposed between the door closing device (17) and the door closing device (16) on the driven side.

In this embodiment, the driven high-speed door (2) is located at the mounting location of the mounting bracket (6), and the driven low-speed door (2a)
) is driven at the attachment position of the link (10), which is located approximately in the center, but since the point of action of the door closing reaction force is close to each other, the effect of the moment around the center of gravity can be reduced.

[Effects of the Invention] As described above, according to the present invention, the attachment position of the link of the door closing device for the driving side door and the driven side door is provided close to the driving force point of the driving side door and the driven side door when the door is opened. By bringing the point of force of the driving force closer to the point of action of the door closing reaction force, a highly stable door opening/closing device is obtained that is less likely to cause vibration or tilting of the door even when the door is opened/closed at high acceleration. can be shortened.

[Brief explanation of drawings]

FIG. 1 is a front view of one embodiment of the present invention, FIG. 2 is a front view of another embodiment of the invention, and FIG. 3 is a front view of an example of a conventional landing door device. In the figure, ( ]) is the drive side door, (2) is the driven side door, (3) is the drive roller, (4) is the engagement vane, (7
) is the interlocking rope, (8) is the link (drive side), (9) is the spring (drive side), (10) is the link (driven side), (1
1) is a spring (driven side), (1, 5), and (16) are door closing devices. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] (1) A drive-side door on the landing side that opens and closes in conjunction with the car-side door of the elevator, a driven-side door that opens and closes in conjunction with the drive-side door, one end of which is attached to the drive-side door, and the other end of which is a fixed part. An elevator door opening/closing device comprising a link biased by a spring attached to the door, and a link biased by a spring attached at one end to the driven side door and at the other end attached to the fixed part. An elevator door opening/closing device characterized in that the links of the device are attached to the driving side door and the driven side door in close proximity to the driving force point when the door is opened.