Ergonomic hand wheel for railway car hand brake

Details Ergonomic hand wheel for railway car hand brake Ergonomic hand wheel for railway car hand brake

1996-02-20

1998-09-01

Bonck, Rodney H.

Machine element or mechanism

Control lever and linkage systems

Elements

475317, B62D 104

Patent

active

057995451

ABSTRACT:
An ergonomic hand wheel for use on a hand brake system on a railway car in which a hand wheel includes a planetary gear system to provides a mechanical advantage to significantly reduce the effort and force required to turn the hand wheel. The planetary gear system includes a sun gear rigidly interconnected to the hand wheel and a hub member rotatably interconnected to the hand wheel which is independently rotatable relative to the hand wheel. The hub member further including a socket at the axis for attaching the hub member to a rotatable drive member of a hand brake system on a railway car, as well as a plurality of planetary gears rotatably secured thereto to mesh with and engage the sun gear. A fixed ring gear attached to a structural element independent of the hand wheel and the hub member, encircles, meshes with and engages the planetary gears.

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patent: 1766273 (1930-06-01), Wine
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patent: 3258991 (1966-07-01), Bezlaj
patent: 3456528 (1969-07-01), Maruyama
patent: 4282771 (1981-08-01), Grube
patent: 4291793 (1981-09-01), Klasing
patent: 4301693 (1981-11-01), Stanley
patent: 4368648 (1983-01-01), Housman et al.
patent: 4531427 (1985-07-01), Nilsson
patent: 4714142 (1987-12-01), Sheperd
patent: 5127283 (1992-07-01), O'Brien et al.

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