SU1685436A1 - Wheelchair for invalids - Google Patents

Abstract

The invention relates to vehicles for persons with disabilities. The purpose of the shadows is to increase maneuverability by providing nHBd / ido1 movement forwards and increasing safety when m moving up and down the ladder. The device consists of a frame 1, a seat 2 of the backrest 3, and a running board 4. 5 leading and driven 7 wheels, caterpillar drive from front 9, middle 10 and rear 11 links, drive to lift the drive in the form of a chain transfer 15. screws 16, wheels 17, telescopic screws to drive the wheels 5 and drive in the form of a swinging arm 19 main 20 and n 21 chain transmissions, clutches, chain transmissions, Ku. Ekos, npv / KHHbi coupling, drive up, i Mii jules 7 in the form of dogs of worm gears 41 and 42, drive from the middle chain 10 , two worm gears 46 and -4 and gear ears, amorshsers 61 and 52 7 or

Description

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Claims (1)

Claim Wheelchair for the disabled, containing a frame, seat, backrest, footrest, two driving wheels mounted on the same axis, two driven wheels mounted on a swivel fork, two tracked engines with driving and driven sprockets, a drive for raising and lowering the latter, drive drives wheels with a clutch on each <oles and a handle for turning them, characterized in that, in order to increase maneuverability by ensuring the disabled person moves forward and to increase safety when moving up and down stairs, a caterpillar made of front, middle and rear links pivotally connected to each other, a drive for raising the lowering of the caterpillar mover in the form of a handle, a chain transmission with two worms and two worm wheels, in the internal thread of which telescopic spindles are installed, the lower ends of which are connected to the middle links of the caterpillar movers , the drive wheel drive is made in the form of a swinging growl ha, the main and intermediate chain gears connected in series with each other, a large main gear sprocket in it is filled with windows in which the lower ends of the swinging levers are located, a small intermediate gear sprocket and clutch are mounted on the axle of the driving wheels, the front link of the r / senic mover is connected to the frame by means of a bolt with a spring and a panel with guide channels, one of which has a roller the front link, the middle link with an intermediate chain transmission by means of a chain transmission, two fists, a flat spring, a gear coupling, a ratchet wheel with a spring-loaded dog and a track sprocket I, one end of the middle link is mounted on the axis of the driving wheels, the other end and the rear link have panels with channels, each of which houses the end of the shock spring connected in the middle with 5 telescopic spindles, and the stroller is equipped with a fork raising and lowering drive driven wheels in the form of a handle connected in series, two worm pairs, a wheel of one pair mounted on a fork, and a drive for moving the middle link when lowering in the form of a handle, chain transmission, two worm pairs located vertically But, and two gears connected to the drive sprockets of the middle link, a three-leaf roller travel switch is installed in the front link panel, and shock absorbers are installed between the seat and the frame, FIG. 4 FIG. 6