Pivotal extension apparatus for motor homes and recreational veh

Details Pivotal extension apparatus for motor homes and recreational veh Pivotal extension apparatus for motor homes and recreational veh

1998-06-29

1999-06-01

Pape, Joseph D.

Land vehicles: bodies and tops

Bodies

Variable capacity of body

296175, 296176, 296 2612, 52 69, B60P 334

Patent

active

059082151

ABSTRACT:
An apparatus for extending and retracting one structure with respect to another which utilizes a pivoting mechanism rather than the standard linear mechanisms known in the art. The mechanism further utilizes a torsion bar connected between the distal ends of the actuator for synchronizing the movement of the actuators to prevent binding and twisting. A first embodiment utilizes a flat chain and a pair of circular guides to maintain the torsion bar in a horizontal plane, while a second embodiment of the invention utilizes a four-bar linkage system.

REFERENCES:
patent: 3397006 (1968-08-01), Grant
patent: 5078442 (1992-01-01), Rau et al.
patent: 5131712 (1992-07-01), Heinz
patent: 5570924 (1996-11-01), Few et al.
patent: 5772270 (1998-06-01), Hanser et al.

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