Patent ID: 11858779
Assignee: KONE CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An elevator safety arrangement comprising
a hoistway;
an elevator car mounted in the hoistway;
a working platform;
at least one movable balustrade, movable between a substantially upright position and a substantially horizontal position;
a sensing arrangement configured to sense a position of the at least one movable balustrade, said sensing arrangement for sensing position of the at least one movable balustrade comprising at least two sensors for sensing position of the at least one movable balustrade,
wherein said at least two sensors configured to sense the position of the at least one movable balustrade comprise a sensor body and a sensor head, and the sensor head is movable relative to the sensor body, and the at least one movable balustrade is configured to move the sensor head when pivoted, the at least one movable balustrade comprising a cam member pivotal together with the at least one movable balustrade, the cam member comprising one or more protrusions and depressions, the sensor head is placeable against the cam member for being actuated by aid of at least one protrusion and at least one depression of the cam member where at least one protrusion or depression is configured to actuate a first sensor of said at least two sensors to indicate the upright position of the at least one movable balustrade, and at least one protrusion or depression is configured to actuate a second sensor of said at least two sensors to indicate the horizontal position of the at least one movable balustrade.