Anti-Shimmy caster wheel Mounting

Details Anti-Shimmy caster wheel Mounting Anti-Shimmy caster wheel Mounting

1996-01-02

1998-09-22

Mah, Chuck

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Locked

16 21, B60B 3300

Patent

active

058096124

ABSTRACT:
A assemblage for mounting a caster wheel on a depending stationary post on a wheeled load carrier comprises a body element having a cylindrical chamber concentrically surrounding the support post. The body element has a bracket for mounting a caster wheel for rotation about a horizontal axis. A vertical stack of washers surround the support post and alternate ones of such washers are secured to the support post and rotatable within the cylindrical chamber while the remainder of such washers are co-rotatable with the body element about the axis of the support post. The cylindrical chamber is filled with a lubricating fluid to a sufficient depth to cover all abutting surfaces of said washers, thereby providing viscous fluid shearing resistance to shimmying movement of the caster wheel relative to the support post. To maintain the friction between the support post and body element independent of the amount of load, anti-friction thrust bearings are provided between the support post and the body element.

REFERENCES:
patent: 1826821 (1931-10-01), Powers
patent: 2103202 (1937-12-01), Green
patent: 2369609 (1945-02-01), Sandberg
patent: 4432116 (1984-02-01), Schultz
patent: 4620342 (1986-11-01), Haussels
patent: 5390393 (1995-02-01), Reppert et al.

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