SU1648877A1 - Elevator car sliding doors drive - Google Patents

Abstract

The invention relates to an elevator construction and can be used in the drive structures of sliding doors of an elevator car. The purpose of the invention is to simplify the performance characteristics by providing a constant sash speed. The drive includes a carriage 1 with a door leaf fixed on it and a vertically mounted slider 2 interacting with a slider 3 forming a hinge with a finger 4 mounted on a flexible traction element 5 spanning two pulleys. The finger 4, attached to the element 5, moves along a path including curvilinear and straight sections defining a velocity diagram, which allows to increase the duration of the flap movement with the maximum permissible condition for limiting the energy of the movement velocity. 2 hp , 5 il. with $

Description

The invention relates to lift-building industry and can be used in the construction of drives for sliding cabin doors.

The purpose of the invention is to improve the performance characteristics by providing a viable sash speed.

FIG. 1 shows a drive circuit with two pulleys of different diameters and one obliquely located branch of the driving element; figure 2 - the interaction of the finger with the slider; in fig. 3 is a diagram with three pulleys and one flap; figure 4 is a diagram with two pulleys of the same diameter and two flaps; in fig. 5 (a, b, c) examples of fixing a finger on a traction element.

The drive of the sliding doors of the elevator car contains a carriage 1 with vertically mounted on it an outlet 2, interacting with a slider 3, forming a hinge with a finger 4 mounted on a flexible traction element 5, covering the deflecting and driving pulleys 6 and 7 and drive gear 8 (Fig. 1).

The device can also be equipped with an additional third deflection pulley 9 (Fig. 3), which allows for the lowest possible gear ratio of the drive gear 8.

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In addition, for driving, without an additional synchronizing mechanism, simultaneously of two flaps, the device can be equipped with 5 pulleys 6 and 7 of the same diameter, additionally with a carriage 10 with an And discharge and a finger 12 (Fig. 4).

A cable, a chain and a belt can be used as a flexible traction element 5 into the device. Examples of fastening a finger on a traction element are shown in FIG. five.

The drive works as follows.

In the initial position, the flaps are closed, while the carriage 1 with the discharge 2 is in the extreme right position. When the driving pulley 7 rotates clockwise, the finger 4 attached to the flexible traction element 5, 20 moves the arc along a circle from point A to point B with a constant peripheral speed. The slider 3, moving along the lateral 2 in the vertical direction, shifts the lateral 2 and the carriage 1 of the door leaf to the point o. The translational speed of the carriage 1 in the section under consideration smoothly penetrates from zero to the maximum value. The further movement of the carriage 1 from the point about to the point C is carried out at a constant speed Udddke. Finger movement 4 oi point C to the extreme left position point D occurs in an arc

thirty

It will increase the speed of moving carriage 1 in the direction of opening, because on carriage 1 in front of c there is only a horizontal component of finger speed 4o

The operation of the drive, equipped with m pulleys (Fig. 4), is logically described in FIG. 10 The carriage of the carriage 1 in the direction of the van goes when the finger 4 moves from point A to point D h B and C, in the direction of closing point D to point A through C and B.

The drive operation shown in FIG. 4, is similar to the one in FIG. 1 and it is different that the finger 12, pivotally connected by carriage 1, moves along a path through points D-E-F-A, while carriage 10 moves at the same speed as carriage 1.

Claims (2)

1. The drive of the sliding doors to the elevator bin, comprising positioned in the plane of movement of the doors, into the deflecting and deflecting pulleys, connected by an endless flexible traction element and a hinge pin for influencing the sash carriage, in order to simplify the operational characteristics circles with a constant circumferential speed of 35 ensuring a constant speed 40 growth rate, and the speed of movement of the carriage 1 smoothly decreases to zero. To move the flap in the opposite direction, the drive pulley 7 rotates counterclockwise, the finger 4 moves along a path including points D-C-B-A, the carriage 1 moves from left to right at a speed that follows the same pattern as during opening 4c To move the sash in the direction of closing, a finger 4 movement path can be used, including DEFA points, t, e along the inclined branch of the traction element, which is pointed, the finger is mounted on the grip element, and the distance between the extreme points of both pulleys is equal to stroke sash. 2. The privilege of Clause 1, the difference of Clause 1 and and the fact that it is provided with a backing pulley placed at one of the pulleys, covered by a cotton traction element 3 "Drive according to claim" characterized in that the pulleys are provided with an additional pin opposite to the hinge pin mounted on the flexible connecting rod, and the pulleys have the same diameter. s 0 5 0 It will increase the speed of movement of the carriage 1 in the direction of opening, since only the horizontal component of the speed of the finger 4 is transmitted to the carriage 1 The drive, equipped with three pulleys (Fig. 4), is similar to that described in Fig. 10 Moving the carriage 1 in the direction of opening occurs when moving the finger 4 from point A to point D through B and C, in the direction of closing from point D to point A through C and B. The operation of the actuator shown in FIG. 4, occurs as described in FIG. 1 and is characterized in that the finger 12, which is pivotally connected to the carriage 1, moves along the path through the points D-E-F-A, while the carriage 10 moves at the same speed as the carriage 1. Invention Formula 1. The drive of the sliding doors of the elevator car, which contains the drive and deflecting pulleys located in the plane movement of the doors, connected by an endless flexible traction element, and a hinge pin for acting on the sash carriage, in order to simplify score provide constant speed the flap, the finger is mounted on the flexible traction element, and the distance between the extreme points of both pulleys is equal to the flap stroke. 2. The priv to one according to claim 1, distinguished by claim i and with the fact that it is provided with an additional pulley located at one of the pulleys, covered by a flexible traction element 3 "Drive according to claim" characterized in that the pulleys are provided with an additional pin mounted opposite the hinge pin mounted on the flexible traction element, and the pulleys have the same diameter. FIG. 2 1 Closure Fig.Z Braking 101 FIG 7РЖ6 / I