SU1634618A1 - Staircase elevator - Google Patents

Abstract

The invention relates to lifting devices, in particular to stair lifts, and is intended for raising a wheelchair. The purpose of the invention is to increase reliability and provide ease of operation. The elevator includes guide rails 3, 4, 8, carriage 1 with a folding platform 2, and an actuator including a gearbox with a drum. The rail 8 is located at the railing 7, and the platform 2 is provided with a console 10c with a roller 9 resting on the rail 8. The drive is mounted on the carriage 1 and has a detachable actuating handle 21 with a protrusion corresponding to the slot at the end of the output shaft of the gearbox. 1 h. n. f-ly, 3 ill. yo

Description

The invention relates to lifting devices, in particular to stair lifts, and is intended to lift a disabled wheelchair from the level of the front door of the house to the ground floor platform where the elevator is located.

The purpose of the invention is to increase reliability and provide ease of operation.

FIG. 1 shows a lift, isometric view; in fig. 2 shows the layout of the guides; in fig. 3 is a kinematic diagram of a drive reducer.

The elevator contains a carriage 1 with a folding platform 2. The carriage rests on rails 3 and 4 fixed to the wall with rollers 5 and 6. On the other side of the staircase at the rail 7 there is a third rail 8 with which roller 9 contacts (with a horizontal platform) Roller 9 mounted on the console 10 platform 2.

The carriage 1 is equipped with a gearbox 11, which contains shafts 12-14 with gear wheels, a brake clutch 15 of the safe handle type, placed on shaft 16, and a rope drum 17. The rope 18 is wound around the drum 17, the end of which is thrown over the block 19 and connected to an emergency stop mechanism (not shown) fixed on the carriage 1. The ends of the shafts 12-14 protrude outward and have locking elements in the form of sockets 20. A removable handle 21 having a counter element 22, designed as a protrusion, can be worn at either of these ends. which can be placed in about bottom of nests 20

On the carriage there is also a mechanism 23 for swinging and lowering the platform (not shown), which can be operated only by the same removable handle 21c on both sides of the carriage 1.

The lift works as follows.

In the initial position, the carriage 1 is either in its extreme upper position near the upper platform of the staircase, or in its lowest position near the lower platform. The platform 2 is raised to position 24 (Fig. 2). At the same time, the staircase is almost free.

for the passage of people through it, carrying bulky items.

A disabled person in a wheelchair approaches the lift, puts the handle 21 on one of the inputs of the mechanism 23 and, rotating it, brings the platform into a horizontal position. In this case, the roller 9 is lowered onto the rail 8, and the following distribution of forces occurs: the working load directed downwards is perceived by the rollers 5 and 9. A minor lateral load caused by the demolition of the tilting axis of the platform 2 relative to the rail 3 is perceived by the rail 4 through the roller 6 which allows to simplify the design.

Next, the disabled person removes the handle 21 from the entrance of the mechanism 23, enters the platform 2, puts the handle on one of the shafts of the gearbox 11. The rotation of the handle is transferred to the drum 17, the rope 18 is wound or reeled up on it, and the lift moves up or down along the ladder. In this case, a passage remains with the platform.

The gear ratio of the gearbox 11 between the handle 22 and the drum 17 is determined by which shaft the arm 22 is connected to. When lifted, the handle 22 is connected to the shaft 12 or 13 depending on the patient's physical abilities. During the descent, when the force on the handle is minimal, the hand is connected to the shaft 14, which ensures a quick movement of the lift downwards. The clutch 15 prevents the rotation of the drum under the action of an external load without the influence of the handle 21.

Claims (2)

1. A stair lift mainly for lifting a wheelchair, containing a carriage with a folding platform mounted on rails in the form of rails, two of which are fixed on the wall of the building, and toetia on the steps of the ladder, and a carriage drive that includes a reducer and a drum, characterized in that, in order to increase reliability and provide ease of operation, one of the rails is located at the staircase railing, wherein the folding platform is made rotatable relative to the longitudinal axis and provided with a console ICOM opirayuschims in working position on the rail, wherein the actuator is mounted on the carriage and provided with a removable handle with a protrusion corresponding to the profile slot of the output shaft of the gearbox. 2. A lift according to claim 1, characterized in that the gearbox is made multi-stage, with the profile of the socket of the output shaft of each stage corresponds to the profile of the protrusion of the handle. AND 21 " ABOUT  i “- i & / 2 f3 12 h py 20 ten / 15