B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 13/02 (2006.01) B66B 13/08 (2006.01) B66B 13/30 (2006.01) E06B 5/00 (2006.01) E06B 9/08 (2006.01)
Patent
CA 2564526
The invention provides an elevator door system (1) comprising a motor (26), a vertical axis (12) rotatably driven by the motor (26), and an elevator door (3). The door (3) can comprise a plurality of vertically aligned rigid panels (2) or can be a sheet of material which is rigid or reinforced in the vertical direction or can have any other appropriate form making it suitable for being wound upon and unwound from the vertical axis (12). The door (3) is mounted to a flexible force transmission member (4;6;40;50) provided along an entire width of the door (3) and interconnected to the vertical axis (12). Accordingly, the forces generated by the motor (26) for opening and closing the door (3) are substantially transmitted through the or each transmission member (4;6;40;50) rather than being imparted onto the door (3) itself. Hence, in use the strain on the door (3) is greatly reduced and therefore the quantity of material used for the door and consequently its cost and mass can be reduced without deteriorating performance.
Ag Inventio
Riches Mckenzie & Herbert Llp
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