Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Patent
1997-05-14
1999-11-23
Valenza, Jospeh E.
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
B66B 2312
Patent
active
059883502
ABSTRACT:
The present invention relates to an aluminum die-cast escalator step with a reinforcing addition, by means of which the load capacity and thus the fracture load limit of the step body (1) 15 increased. In an unchanged compact step body (1), a stiffening section (6) is fastened in the transverse direction at the rear part at its underside (16). Side struts (15) are reinforced by enclosing side parts (7, 8) wherein the rims of the side surfaces of the side parts (7, 8) lie against the underside (16) and against the rear side (17) of the step body (1). A metal ring is welded to the side plate and encloses the stub axle pin of the step body. The stiffening section (6) has an asymmetric U shape.
REFERENCES:
patent: 2570135 (1951-10-01), Loughridge
patent: 4413719 (1983-11-01), White
patent: 5358089 (1994-10-01), Riedel
Neszmerak Wolfgang
Nusime Harold
Invento AG
Valenza Jospeh E.
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