Apparatus for stopping a passenger conveyor

Details Apparatus for stopping a passenger conveyor Apparatus for stopping a passenger conveyor

1996-04-17

1997-03-18

Dayoan, D. Glenn

Conveyors: power-driven

Conveyor or accessory therefor specialized to convey people

With means to control the operation of the section

198325, B66B 2906

Patent

active

056114176

ABSTRACT:
An apparatus for stopping passenger conveyors, such as escalators and moving walkways having at least one comb plate, responds to movement of the comb plate due to an applied force to actuate a safety switch. The apparatus exerts a static trigger force on the comb plate which trigger force has horizontal and vertical components. The comb plate is movable horizontally and vertically against a static trigger force when the applied force exceeds one or both of the horizontal and vertical components. The trigger force is set by a biased trigger spring pivotally mounted on a carrier plate for the comb plate and acting at an adjustable angle relative to the horizontal plane permitting selection of the ratio of the horizontal component to the vertical component. The angular position can be reset manually within a certain angular range through engagement of detent notches on an abutment attached to the comb plate and detent pins connected to the trigger spring.

REFERENCES:
patent: 2109210 (1938-02-01), Dunlop
patent: 2862599 (1958-12-01), Sinden et al.
patent: 4088219 (1978-05-01), Binns
patent: 4800998 (1989-01-01), Myrick
patent: 5255771 (1993-10-01), Nurnberg et al.
patent: 5307918 (1994-05-01), Rivera et al.
patent: 5390800 (1995-03-01), Hofling et al.

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