RAMP (VERSIONS) Russian patent published in 2015 - IPC E04F11/00 

FIELD: construction.

SUBSTANCE: group of inventions relates to facilities for movement of wheelchairs in areas with limitations for installation of a ramp. A rotary ramp comprises: two guides connected to each other with at least two beams with cantilever sections; a torsion rigidly fixed to the ends of the cantilevers and hingedly - to a wall. The torsion at the ends is equipped with conical gears coupled at 90°, one of which is rigidly connected with it. The axis of the second gear is fixed to the wall and forms a connection with a slider via an eccentric of the second gear and a connecting rod. The slider is connected to a control mechanism. The sliding ramp comprises sliding guides. One of guides is connected to an actuating device. The device represents two traction rods. Traction rods are hingedly connected at one end to each other and to one of guides. At the other end the traction rods are connected with sliders. Sliders are connected to a control mechanism. A lifting ramp is equipped with a rope mechanism made of two frames. Frames are stiffly attached to opposite vertical surfaces of the lower space of the flight of stairs. Each frame is equipped with two stands with a slider, rigidly connected to each other by a beam with at least two pulleys. Steps are fixed rigidly to the beam with the possibility of placement of cables under them.

EFFECT: proposed solution provides for passage of all types of wheelchairs and independent usage by a wheelchair user.

14 cl, 9 dwg