Lift shaft closure and method of fulfilling fire protection...

Details Lift shaft closure and method of fulfilling fire protection... Lift shaft closure and method of fulfilling fire protection...

B - Operations, Transporting

66

B

B66B 13/30 (2006.01) A62C 3/00 (2006.01) B66B 13/06 (2006.01)

Patent

CA 2456890

The invention relates to a lift shaft closure, a method of fulfilling fire protection requirements of a lift shaft closure and a method of mounting the same. In this lift shaft closure the door frame (2) is composed in the region of the closing edge (3) of at least two parts (20a, 20b) which shift their position relative to one another under thermal influence (Fig. 5, 20a'). 1n the case of fire the first door frame part (20a) separates from the second door frame part (20b), wherein the former curves by heat action and displaces in front of the door leaf (1a), whilst the second door frame part (20b) substantially retains its original shape.

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