An apparatus (4) for transporting a load from a first to a second level comprising an emergency rotation blocking arrangement for preventing rotation between the load carrier (10) and the frame (9) of said apparatus, said rotation blocking arrangement comprising: a first braking member (21) having a primary braking surface which is strip shaped and extends along at least a section of a circle around said axis, a second braking member (22) having at least one secondary braking surface which extends at a distance from said primary braking surface at an angle in such a manner that the distance between the two surfaces varies, thereby forming a substantially wedge shaped gap between the primary and secondary surfaces having a wider part and a narrower part, the wedge shaped gap widening in a tangential direction around said axis, wherein in a normal operation mode a third braking member (23) is held in a fixed position relative to said second braking member (22) by a retaining member (24) such that it extends in the wider part of said wedge shaped gap where it cannot engage both the primary and secondary braking surfaces at the same time, and wherein in a braking operation mode said retaining member (24) is moved relative to said second braking member (22) such that said third braking member (23) is allowed to move to the narrower part of said wedge shaped gap, thereby engaging both the primary and secondary braking surfaces and blocking rotation of the second braking member (22) in said tangential direction relative to the first braking member (21).
AN APPARATUS FOR TRANSPORTING A LOAD FROM A FIRST TO A SECOND LEVEL, IN PARTICULAR A STAIRLIFT
VORRICHTUNG ZUM TRANSPORT EINER LAST VON EINER ERSTEN ZU EINER ZWEITEN EBENE, INSBESONDERE EIN TREPPENLIFT
APPAREIL POUR LE TRANSPORT D'UNE CHARGE D'UN PREMIER À UN SECOND NIVEAU, EN PARTICULIER UN MONTE-ESCALIER
2019-07-03
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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