Expandable trailer having a position locking feature

Details Expandable trailer having a position locking feature Expandable trailer having a position locking feature

1995-06-30

1996-10-01

Ellis, Christopher P.

Motor vehicles

Special wheel base

With means for changing number of supporting wheels, or for...

296 26, 280656, B62D 6112

Patent

active

055604447

ABSTRACT:
A position locking feature for an expandable trailer by which the trailer may be automatically locked in either an expanded or a retracted position. A stop block having a transverse striking plate is mounted to an expansion box beam carrying the expandable portion of the trailer. A locking assembly is mounted to a fixed box beam carrying the fixed portion of the trailer. The locking assembly biases a plunger toward the expansion box beam such that the plunger abuts the transverse striking plate, thereby preventing relative movement of the fixed and expandable portions in one direction. A pair of such stop blocks may be used to lock the trailer in either of the expanded or retracted positions.

REFERENCES:
patent: 3740088 (1973-06-01), Ratcliff
patent: 4299421 (1981-11-01), Bontrager
patent: 4488752 (1984-12-01), Broussard
patent: 5249823 (1993-10-01), McCoy et al.
patent: 5445236 (1995-08-01), Kuhn

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