Trailer tow bar lift mechanism

Details Trailer tow bar lift mechanism Trailer tow bar lift mechanism

1990-10-19

1992-10-06

Hill, Mitchell J.

Land vehicles

Wheeled

Articulated vehicle

280474, 280477, 2804781, 2804791, B60D 126, B60D 136, B60D 144

Patent

active

051525453

ABSTRACT:
A lift mechanism is provided for lifting the tow bar of a trailer to facilitate connection of the trailer tow bar to a truck's pintle. In the preferred embodiment the lift mechanism includes a bladder which may be connected to a pneumatic system on the trailer. The air bladder is inflated to raise the tow bar above the level of the pintle, facilitating connection of the tow bar to the pintle. Because the tow bar is independent of the lift mechanism, the tow bar has a free travel range greater than the powered travel range.

REFERENCES:
patent: 2452710 (1948-11-01), Allen
patent: 3269750 (1966-08-01), Tantlinger
patent: 3479055 (1969-11-01), Cunha et al.

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