Elements to be assembled to form temporary stair

Details Elements to be assembled to form temporary stair Elements to be assembled to form temporary stair

E - Fixed Constructions

04

F

20/101

E04F 11/00 (2006.01) E04F 11/022 (2006.01) E04F 11/025 (2006.01) E04G 27/00 (2006.01)

Patent

CA 1174429

Abstract Elements to be assembled to form temporary stair Elements to be assembled to form in situ a temporary stair, from a pair of planks (1,1') or longitudinally sawn boards, of identical cross-section, intended for serving as stringers and which elements consist of steps (2), identical with one another, the steps being self-locking one by means of another onto and against the planks (1,1'), with the exception of the top step which has to be wedged against these planks (1,1'); each step (2) rests, at each side at the front, on the upper edge of a plank and, at the rear, is brought against the lower edge of the plank by a pair of flats (14,14') terminating in a hook (16) and mounted freely pivotal in the step placed next above. Figure 1.

394183

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