E - Fixed Constructions – 04 – F
Patent
E - Fixed Constructions
04
F
20/102
E04F 11/04 (2006.01) E04F 11/035 (2006.01)
Patent
CA 2007032
A takedown staircase in which the upward joint 2 and the downward joint 3 are vertically installed at the base end and front end of horizontal base plate 1, comprising a stair unit 4 which will be connected to a plurality of upper and lower flights by mutually inserting/uniting the upward joint 2 and the downward joint 3, a bolt 7 which fixes the upward joint 2 and the downward joint 3 by being spirally inserted into the nut 6 fixedly installed in the downward joint 3 from the longitudinal long hole 5 bored in the upward joint 2 and a tread 8 which will be fixed to the upper surface of horizontal base plate 1.
Escalier démontable dans lequel le joint ascendant 2 et le joint descendant 3 sont posés à la verticale à l'avant et à l'arrière, respectivement, de la plaque de base horizontale 1, comprenant un élément d'escalier 4 qui sera raccordé à un grand nombre de volées supérieures et inférieures en introduisant/réunissant mutuellement le joint ascendant 2 et le joint descendant 3; un boulon 7 sert à fixer le joint ascendant 2 au joint descendant 3 en le vissant dans l'écrou 6 fixé à demeure dans le joint descendant 3 à partir du trou longitudinal ovalisé 5 alésé dans le joint ascendant 2; ensuite, une marche 8 sera fixée sur la surface supérieure de la plaque de base horizontale.
Keiichiro Yamazaki
Swabey Ogilvy Renault
LandOfFree
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