Variable ratio parking brake lever with self-adjust cable tensio

Details Variable ratio parking brake lever with self-adjust cable tensio Variable ratio parking brake lever with self-adjust cable tensio

1993-11-19

1995-09-12

Marmor, Charles A.

Machine element or mechanism

Control lever and linkage systems

Elements

745016, 74512, 74516, G05G 104, B60T 702

Patent

active

054489288

ABSTRACT:
A variable ratio parking brake lever mechanism includes a brake lever connected with a support for pivotal movement about a lever pivot axis, a cable track member connected with the support for rotation about a cable track axis spaced from the lever pivot axis, a connecting link connected at one end with the cable track member adjacent the cable track axis, and a slot and pin arrangement connecting the other end of the connecting link with the lever to afford a mechanical advantage such that pivotal movement of lever through a given angle in the brake-applying direction produces a controllably variable rotational angle of displacement of the cable track member in the cable-tensioning direction. The connection between the connecting link and the cable track member is released when the lever is in the brake-released position, whereby the cable track member is free for rotations by a biasing spring to remove slack from the cable.

REFERENCES:
patent: 2278645 (1942-04-01), Chase
patent: 3216276 (1965-11-01), Nagy
patent: 3487716 (1970-01-01), Hirst, Jr.
patent: 3897694 (1975-08-01), Hirst, Jr.
patent: 3938407 (1976-02-01), Nisbet
patent: 5131288 (1992-07-01), Barlas
patent: 5211072 (1993-05-01), Barlas et al.
patent: 5272935 (1993-12-01), Heinemann et al.
patent: 5280734 (1994-01-01), Riffle et al.

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