Return spring of a drum brake used in a vehicle

Details Return spring of a drum brake used in a vehicle Return spring of a drum brake used in a vehicle

1977-10-14

1978-12-19

Kazenske, Edward R.

Brakes

Wheel

Transversely movable

188216, F16D 5124

Patent

active

041301897

ABSTRACT:
A drum brake used in a vehicle generally includes a backing plate secured to a non-rotatable member of a wheel shaft; a pair of brake shoes slidably attached to the backing plate; a wheel cylinder disposed between each end portion of the brake shoes where they are closely positioned to each other; and a substantially U-shaped return spring to be engaged with each web portion of the brake shoes at the extreme ends thereof for biasing both in a mutually approaching direction. The U-shaped return spring in this invention is characteristically provided with, at each end portion thereof, where the same is engaged with each web portion of the shoes, a notch whereinto the web portion is to be fitted for securely positioning the return spring.

REFERENCES:
patent: 2385540 (1945-09-01), Rasmussen
patent: 2671535 (1954-03-01), House
patent: 2945564 (1960-07-01), House et al.
patent: 3095950 (1963-07-01), Scheel
patent: 3203512 (1965-08-01), Lepelletier

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