SUSPENDED STAIR ELEVATOR Russian patent published in 2012 - IPC B66B9/08 

FIELD: transport.

SUBSTANCE: invention relates to hoisting device. Proposed elevator comprises stationary guide, carriage with drive and support rollers, carriage drive and weight suspension articulated with said carriage. Said guide has lengthwise cutout to allow displacement of carriage with drive roller arranged to interact with guide top working surface. Support rollers are arranged to interact with bottom working surfaces of guide cavity. Note here that drive and support rollers are fitted off-center on one axle while suspension attachment of carriage is shifted relative to plane crossing axis of rollers perpendicular to guide axis for adjustable length. Drive roller working surface is made from elastic material.

EFFECT: higher reliability.

2 cl, 4 dwg