AN APPARATUS FOR TRANSPORTING A LOAD FROM A FIRST TO A SECOND LEVEL, IN PARTICULAR A STAIRLIFT

摘要

An apparatus (4) for transporting a load from a first to a second level, in particular a stairlift, comprising means for maintaining the load carrier (10) in a predetermined rotational position relative to the direction of gravity, which position-maintaining means comprise at least one adjusting motor arranged to rotate the load carrier (10) relative to the frame (9) around said horizontal axis, wherein said apparatus (4) further comprises an emergency rotation blocking arrangement comprising: a first braking member (21) rigidly connected to one of said frame (9) and said load carrier (10), a second braking member (22) rigidly connected to the other one of said frame (9) and said load carrier (10), at least one third braking member (23) arranged between said first braking member (21) and said second braking member (22), a movable retaining member (24) which holds said third braking member (23) and which is arranged to be moved relative to the second braking member (22); wherein in a braking operation mode said retaining member (24) is arranged to be moved relative to said second braking member (22) such that it moves said third braking member (23) to the narrower part of said wedge shaped gap (231), thereby engaging both the primary braking surface (212) and the secondary braking surface (223) and blocking rotation of the second braking member (22) in said tangential direction relative to the first braking member (23).