Conveyor device

Details Conveyor device Conveyor device

2005-03-17

2009-08-04

Hess, Douglas A (Department: 3651)

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

By stairway having steps forming an endless member

C198S330000

Reexamination Certificate

active

07568571

ABSTRACT:
In order to suppress speed irregularity of step rollers (5) in a passenger conveyor, a bent section (17) is formed in a step guide rail (3) and a restraining member (18) is provided upstream thereof, the shape of the height of the bent section (17) and the restraining member (18) is corrected beforehand by the amount of the compression of resilient members of the step rollers (5), which are formed with such resilient members around their shafts, by the compressive force acting between the bent section (17) and restraining member (18). Thus generation of speed irregularity of the steps (4) is suppressed and passenger comfort is improved. Also, by providing a recess (3aa) in the step guide rail (3), gripping of the step rollers (5) as they execute rolling movement along the undersurface of the restraining member (18) from below can be avoided, thereby preventing damage to the step rollers (5), restraining member (18) and step guide rail (3).

REFERENCES:
patent: 2060491 (1936-11-01), Dunlop
patent: 2663400 (1953-12-01), Margles et al.
patent: 2686585 (1954-08-01), Margles et al.
patent: 3834513 (1974-09-01), Miura et al.
patent: 4498890 (1985-02-01), Sutherland
patent: 5697486 (1997-12-01), Krampl
patent: 6382388 (2002-05-01), Hirai et al.
patent: 6427823 (2002-08-01), Ishikawa et al.
patent: 6834754 (2004-12-01), Pietz
patent: 7011207 (2006-03-01), Suzuki et al.
patent: 7077257 (2006-07-01), Pietz
patent: 7159705 (2007-01-01), Ogimura et al.
patent: 7296671 (2007-11-01), Pietz
patent: 7401691 (2008-07-01), Ishikawa et al.
patent: 2006/0108196 (2006-05-01), Ishikawa et al.
patent: 1 479 640 (2004-11-01), None
patent: 48-002689 (1973-01-01), None
patent: 48-067986 (1973-09-01), None
patent: 8-145125 (1996-06-01), None
patent: 2003-252560 (2003-09-01), None
patent: WO 03/072481 (2003-09-01), None

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