Escalator caliper brake assembly with adjustable braking torque

Details Escalator caliper brake assembly with adjustable braking torque Escalator caliper brake assembly with adjustable braking torque

1992-02-18

1994-01-11

Le, Mark T.

Brakes

Wheel

Axially and transversely movable

188 74, 188 76, F16D 4900, F16D 5900

Patent

active

052772780

ABSTRACT:
An escalator is provided with a caliper disc brake for stopping movement of the steps in cases of emergency. The disc is mounted on the main drive sprocket shaft, and the caliper is normally held away from the disc. When power is removed from the drive, the caliper is set on the disc to stop further movement of the steps. The braking torque of the brake assembly is adjustable to allow use of one basic assembly with escalators having different rises. The adjustment is accomplished by moving the center of gravity of the brake pads toward or away from the pivot axis of the brake lever. The brake can also be finely tuned at installation to provide an optimum stopping distance and time so that a too abrupt stop is avoided.

REFERENCES:
patent: 643231 (1900-02-01), Parmiter
patent: 1386120 (1921-08-01), Kuenneth
patent: 2830679 (1958-04-01), Butler
patent: 2917135 (1959-12-01), Hirgel
patent: 3305048 (1967-02-01), Brilando
patent: 4066152 (1978-01-01), Pascal
patent: 4270631 (1981-06-01), Kobelt

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