JPH0281888A - Center double sliding door for elevator - Google Patents

Abstract

PURPOSE:To shorten the prescribed length of a toothed belt by providing a driving belt driven together with the toothed belt for operating a second sliding door and operating a first sliding door correspondingly to the traverse path of the first and second sliding doors. CONSTITUTION:A toothed belt 15 provided along the traverse path of a second sliding door 6 is moved through a large toothed belt pulley 9c and a toothed belt pulley 14 near to the center of an entrance 1 by driving a driver 9 and the second sliding door 6 is transversely moved through a second connecting member 11. The movement of this toothed belt 15 is transferred to a driving rope 13 provided along the traverse path of the first and second sliding doors 5, 6 through the second connecting member 11. The first sliding door 5 is transversely moved in an opposite direction to the second sliding door 6 through a first connecting member 10 to open and close the entrance 1. In such a way, the toothed belt 15 and the driving rope 13 are arranged, which allows the length of the toothed belt 15 to be longer than twice as long as the dimension of the width of the entrance 1 and the belt 15 to be fabricated at low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a central double sliding door device for an elevator provided at an entrance/exit of an elevator, and particularly to a transmission structure thereof.

[Conventional technology]

FIG. 3 is a front view of a conventional central double-bow door device for elevators similar to that shown in, for example, Japanese Utility Model Application Publication No. 58-95968, and in FIG. 9, (1) is an elevator entrance;
(2) is a girder-shaped fixed body installed at the upper part of the entrance/exit (1), +31t= is the rail attached to the fixed body (21).

(41 is the sill that formed the lower edge of the entrance (1), (5) is the upper hanging arm supported by the rail (3), and the lower part is the sill (
41, the first sliding door opens and closes the left half of the entrance +11, (61 is the first sliding door (the second sliding door is configured similarly to 51 and opens and closes the right half of the entrance fi+),
C7) is a toothed belt wheel pivotally connected to the fixed body (2) and placed at the opening corresponding position of the first sliding door (5) and the second sliding door (6), (81 is endless and has teeth). bell)
! +71 (toothed bell carried around), f91 is a drive device provided on the fixed body (2), and the electric motor (9a),
A belt pulley with small teeth (
9b), Canine toothed bell fixed to toothed belt M 171 and rotating together) M (9c), Toothed bell wrapped around small toothed belt pulley (9b) and canine toothed belt IE (9c)) ( 9d) by! 532.

ae is a first connecting body in which one end is fixed to the first sliding door (51) and the other end is fixed to the upper side of the toothed belt (8), and the leaf is fixed to the second sliding door (6) at one end and the other end is toothed. This is the second connecting body fixed to the lower side of the belt (81).

The conventional central double sliding door device for elevators is configured as described above, and when the drive device (9) is energized, the drive device (91
The toothed belt (8
) works. And the first. Second connector 11[1(Il
1 through l. The second sliding door (5) (6) is connected to the rail (3
) and move in opposite directions to open and close the entrance/exit (1).

[Problem 1 to be solved by the invention] In the conventional central double sliding door device for elevators as described above, a toothed belt (8
) is required, which increases manufacturing costs. In addition, the entrance/exit Tll has different width dimensions depending on the elevator.
However, the toothed belt (8) is commercially available as a standardized annular molded product.

(Toothed Bell) East However, there was a problem in that the required width of the elevator hoistway was increased due to the sliding door cover.

This invention was made to solve these problems, and is inexpensive because it requires only a short toothed belt.The central double sliding door for elevators can be designed to have the minimum frontage size corresponding to the width of the entrance/exit. The purpose is to provide equipment.

[Means to solve the problem]

The central double sliding door device for elevators according to this invention includes:
The second sliding door is provided along the traverse path of the second sliding door and is driven.
A toothed belt that operates the sliding door.

A transmission rope is provided along the loading route of the first sliding door and the second sliding door, and is driven together with the toothed belt to operate the second sliding door.

[Effect]

The central double-bow door device for elevators configured as shown above has a toothed belt with a length that is more than twice the width of the entrance and exit, and the required length of the standard length of the toothed belt to correspond to the width of the entrance and exit. The surplus from the opening is absorbed by arranging the toothed belt pulley on the other side opposite to the toothed belt pulley disposed at a predetermined position on the door pocket side of the first sliding door closer to the second sliding door in the width of the entrance/exit. Furthermore, the transmission rope can be easily set to the minimum length corresponding to the width of the entrance/exit, and the fixed body can be set to a length that is efficient for the width of the entrance/exit. [Example] Below , an embodiment of the present invention will be explained with reference to FIGS. 1 and 2. FIG.

In the figure, the same reference numerals as in Figure 3 indicate the monk part, and the ropes are pivotally attached to the Q5 fixed body (2) and placed at the corresponding positions of the first sliding door (51) and the second sliding door (61). car,
(13 endless transmission ropes wound around the rope wheel az, f14Fi second sliding door (rope wheel on the 61 side (coaxial with 121, and fixed body (11) placed closer to the center) A toothed belt wheel is pivotally supported at (2), a toothed belt is wound between toothed belt rings I, and (9) is constructed in the same way as the drive device (9) in FIG. The drive device is equipped with a canine toothed belt seat (9C) that is coaxially installed with the toothed belt wheel near the center of the entrance (1) and rotates together.
51, and the other end grips the upper side of the transmission rope 0, Ill! The first gripper (+1a) with one end fixed to the second sliding door (6) and the other end gripping the lower side of the transmission rope (with toothed bell), the second gripper (+1a) gripping the lower side of f19 11b).

In the elevator central double-bow door device configured as shown in Sr' above, a transmission rope α3 is provided along the traverse path of the first sliding door +51 and the second sliding door +61.

In addition, a toothed bell) fi9 is provided along the traverse path of the second sliding door (61) and a drive device (when 91 is energized, a large toothed bell) ] [(The rotation of 141 causes the toothed belt α to move.

The second sliding door 161 extends through the second connecting body full.

In addition, the movement of the toothed bell (a9) is transmitted to the transmission rope (13+) via the second connector (Ill), and the first sliding door (5) is connected to the second sliding door (6) via the first connector a. In this configuration, which opens and closes the doorway +11 by moving sideways in the opposite direction, the length of the toothed belt fi is more than twice the width of the doorway +11, making it inexpensive to manufacture.Also, the standard length of the toothed belt fi9 The surplus length of the toothed belt wheel α relative to the mutual dimension corresponding to the entrance (1) @ dimension is absorbed by arranging the toothed belt wheel α near the center of the entrance + 11 toward the first sliding door (5). Therefore, it is possible to avoid increasing the length of the fixed body (2) due to the standard length of the toothed bell) f19. In addition, the transmission rope fi3 can be easily set to a required size that corresponds to the width of the entrance/exit 111, and the fixed body +21 can be set to the minimum length without waste. It is possible to obtain a central double sliding door device for an elevator that can be designed to have a frontage dimension with minimal distortion corresponding to the width dimension.

〔Effect of the invention〕

As explained above, the present invention includes a toothed belt that is provided corresponding to the traversing path of the second sliding door and driven to operate the second sliding door, and a toothed belt that is provided corresponding to the traversing path of the first and second sliding doors. A transmission rope is provided which is driven together with a toothed belt to operate the first sliding door.

As a result, the required length of the toothed belt is shortened, and the excess length of the standard length of the toothed belt compared to the required length corresponding to the entrance/exit width dimension can be absorbed by setting the position of the toothed belt wheel near the center of the entrance/exit. To realize a central double sliding door device for an elevator which is inexpensive, can be configured to the minimum frontage size corresponding to the width of the entrance and exit, and requires less space for installation.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the central double sliding door device for elevators according to the present invention, Fig. 2 is an enlarged cross-sectional view taken along line 1-1 in Fig. 1, and Fig. 3 is a conventional central double sliding door device for elevators. This is a diagram equivalent to Figure 1 showing (11... entrance/exit, (2)... fixed body, (51...
・First sliding door, (6)...Second sliding door, (9)...
Drive device, 0...first connection body. α11...Second connection body, α2...Rope car, αJ.
...Transmission rope. 041...Toothed bell) Jfi9...Toothed belt Parts RO and equivalent parts in Figure 9 are indicated by the same reference numerals. Figure 1

Claims (1)

[Claims] A first sliding door and a second sliding door extend in opposite directions to open and close the entrance, and the first sliding door and the second sliding door are pivotally connected to a girder-shaped fixed body provided at the upper edge of the entrance. rope wheels arranged at corresponding positions, a transmission rope having an endless shape and wound around the rope wheels and arranged along the traverse path of the first sliding door and the second sliding door, and one end of which is connected to the first sliding door. a first connecting body whose other end is connected to either the upper or lower side of the transmission rope, and a first connecting body which is pivotally connected to the fixed body and which is connected to the center of the width of the entrance and the second sliding door. toothed belt pulleys arranged at corresponding positions, and a drive device which is endless and is wound around the toothed belt pulleys and is arranged along the traverse path of the second sliding door and provided on the fixed body. a toothed belt which is driven by a toothed belt, one end of which is fixed to the second sliding door, and when the first connecting body is connected to the upper side of the transmission rope, the toothed belt is connected to the lower side of the transmission rope and the toothed belt; A central double sliding door device for an elevator, comprising: a second connecting body connected to the upper side of the transmission rope and the toothed belt when the first connecting body is connected to the lower side of the transmission rope.