Automatic locking mechanism for entraining castorwheel vehicles

Details Automatic locking mechanism for entraining castorwheel vehicles Automatic locking mechanism for entraining castorwheel vehicles

1993-01-11

1994-07-26

Larson, Lowell A.

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

Casters

Locked

B60B 3302

Patent

active

053317173

ABSTRACT:
An improved mechanism is provided for enhancing the towability of castorwheel vehicles. The mechanism leaves the castors that are proximal to the towing force to rotate, while locking the distal castors in alignment with the vehicle axis.

REFERENCES:
patent: 2537521 (1951-01-01), Forbes
patent: 3026558 (1958-04-01), Mulholland
patent: 3075233 (1963-01-01), Lorenz
patent: 3098257 (1963-07-01), Zaha
patent: 3142086 (1964-10-01), Thomas
patent: 3861702 (1975-01-01), Wilson
patent: 3974542 (1976-08-01), Timmer et al.
patent: 4054965 (1977-10-01), Vig et al.
patent: 4494272 (1985-01-01), Morita

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