Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Patent
1989-09-19
1991-01-15
Olszewski, Robert P.
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
B66B 2312
Patent
active
049846728
ABSTRACT:
A passenger conveyance tread member, which may be for an escalator or a travelling road, has a tread surface with lateral edges having surfaces which slope towards skirt guards adjacent the lateral edges. The sloping surfaces and skirt guards define a downwardly narrowing gap so that the tendency of e.g. shoes to get seriously stuck in the gap is reduced. The sloping surface may be on a side-most cleat of the tread. An existing conveyance may be adapted by providing its tread members with such sloping surfaces at their edges, e.g. as an insert strip.
REFERENCES:
patent: 3986595 (1976-10-01), Asano et al.
patent: 4362232 (1982-12-01), Saito et al.
patent: 4397383 (1983-08-01), James
patent: 4519490 (1985-05-01), White
patent: 4570781 (1986-02-01), Kappenhasen
patent: 4858745 (1989-08-01), Haas et al.
Ishida Akio
Kaneko Tatsuya
Kimura Toshihiko
Saito Cyuichi
Bidwell James R.
Hitachi , Ltd.
Olszewski Robert P.
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