RU2268695C1 - Apparatus for moving of invalid's wheel chair on stair ramps - Google Patents

Abstract

FIELD: invalid transportation equipment.

SUBSTANCE: apparatus has guiding supports and carriage, and is made in the form of handles mounted on invalid's wheel chair. Handles have poles for retaining of lever with toothed gears or spools on its edges. Toothed gears are positioned for cooperation with guiding supports formed as toothed racks. Spools are adapted for winding of cable thereon. Cable is equipped with catch for securing on story landing. Carriage is mounted on wheel chair for engagement with stair ramps.

EFFECT: increased efficiency owing to providing of simplified ascending and descending of wheel chair, which do not require applying of substantial force.

2 cl, 6 dwg

Description

The invention relates to vehicles for

The well-known "Carriage for transporting a wheelchair through the staircase" A 61 G 5/02, US Pat. No. 2234905 of January 13, 2004, comprising a carriage, handles, a reverse protection mechanism, a pedal, and a ramp.

The disadvantage of this carriage is the large amount of pushing force required to lift the stroller up the stairs.

In addition, the well-known "Wheelchair conveyor on the staircase" A 61 G 5/02, US Pat. No. 2218903 dated 08/30/2002, selected as the closest analogue, and containing the transport chain, sprockets, forks, ramps, guide and wheelchair supports, ears, an electric motor with a gearbox.

The disadvantage of this conveyor is the complexity of the layout as a whole, containing a large number of auxiliary parts.

SUMMARY OF THE INVENTION Wheelchair feeder allows you to overcome the flight of stairs leading to the elevator. For this, in addition to ramps, the device has a support guide made in the form of a gear rack and interacting with mating gears mounted on a handle having a mounting lever and interacting with a wheelchair using racks mounted on special grips of the latter as a hinged equipment or in the embodiment, use a carriage interacting with the ramps of the staircase, and on special handles in the racks install a handle having a rotation lever and Aubin winch, which by means of feed drive cables are, as the cables are fixed on the floor platform leading to the elevator.

Figure 1 shows a General view of the device in the embodiment with gears and a guide support gear rack.

Figure 2 shows a General view of the device in an embodiment containing a winch.

Figure 3 and 4 shows the design of the device of figure 1, rear and side views, respectively.

Figure 5 and 6 shows the design of the device of figure 2, rear and side views, respectively.

The wheelchair feed device along the stair ramps contains: 1 - ramps, 2 - special handles, 3 - drive lever, 4 - gears / reels in the embodiment, 5 - racks mounted on the handles 2, 8 - guide bearings made in the form of gear racks and hinged on racks 7, 9 - carriage, 10 - cable, 11 - hook in the embodiment.

The feeder operates as follows.

When approaching the stairs, the accompanying person installs the drive lever 3 in the struts 5 of the wheelchair, while the gears interact with the guide bearings 8, made in the form of gear racks so that the disabled person’s seat is in a horizontal position, then rotate the lever 3 around the circumference and feed the stroller along the ramps 1 and the guide supports 8 up or down / lift or lower the wheelchair /, which can be repeated many times, while in the embodiment of FIG. 2, lever 3 finds Xia is not complete, as in the first embodiment, according to Fig. 1, but is included in the layout of the stroller. For lifting and lowering, it is necessary to install the bobbins 4 along the edges of the lever 8 / bobbins 4 are included in the device according to the second embodiment, together with the carriage 9 /, then the carriage 9 is brought into working position, i.e. set its wheels in the ramp 1, then act on the lever 3 by turning around the circle and feed the stroller, by winding the cable 10 onto the reels 4, up or down the stairs.

Wheelchair feed devices along the ramps of the stairs do not require large efforts during lowering and lifting, which do not exceed 10 ÷ 15 kg, in addition, the ramps and guide bearings are pivotally mounted and can occupy vertical positions, freeing the staircase if necessary to use its common width. The devices according to the description are intended for supplying a wheelchair to a site on the first floor, i.e. to the elevator.

Claims (2)

1. The supply device of a wheelchair for the stairs along the ramps, containing guide bearings and a carriage, characterized in that it is made in the form of handles mounted on a wheelchair having racks for holding the lever with gear wheels located at the edges, arranged to interact with the guides supports made in the form of gear racks, or to hold the lever with bobbins placed on the edges for winding a cable having a hook for fixing on a floor area, while the carriage is installed on a wheelchair with the ability to interact with the stairs. 2. The device according to claim 1, characterized in that it has a hinged-folding guide bearings and the ability to feed the wheelchair through the hinged-folding ramps of the stairs.

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