Spiral staircase and connecting metals for the spiral staircase

E - Fixed Constructions – 04 – F

Patent

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Details

E04F 11/035 (2006.01) E04F 11/032 (2006.01) E04F 11/18 (2006.01)

Patent

CA 2210343

A spiral staircase which includes a shaft pole for the staircase, a plurality of arms spirally connected to the outer periphery of the shaft pole, a tread fixed to the upper surface of each arm, a plurality of balusters fixed to the outside end portion of a plurality of arms in parallel with the shaft pole, and a plurality of handrails mounted and connected between the balusters pillers, and wherein each of the arms is connected to the shaft pole by arm connecting metals, each baluster is connected to each arm by baluster connecting metals, and the balusters and the handrails are connected by handrail connecting metals. Since the connecting metals are used for the connection between the shaft pole and the arms, between the arms and the balusters and between the balusters and the handrails, connection and assembly of the spiral staircase can be carried out easily, reliably and firmly without requiring skilled labor, and the cost of the production and high operation efficiency can be accomplished.

Cet escalier en colimaçon comprend un pilier central, des bras reliés en spirale à la périphérie externe de ce pilier, des plans de marches fixés à la surface supérieure de chaque bras, des balustres fixés à l'extrémité des bras parallèlement au pilier central, et des mains courantes montées de façon à relier les piliers de balustres. Chaque bras est relié au pilier central par des raccords métalliques de bras, chaque balustre est relié à chaque bras par des raccords métalliques de balustres, et les balustres et les mains courantes sont reliés par des raccords métalliques de main courante. Des raccords métalliques reliant le pilier central et les bras, les bras et les balustres et les balustres et les mains courantes, les liaisons et l'assemblage de cet escalier en colimaçon se révèlent faciles, sûrs et solides sans exiger de main-d'oeuvre qualifiée, et le coût de production, et donc la rentabilité, de cet escalier sont avantageux.

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