Fifth wheel locking mechanism

Details Fifth wheel locking mechanism Fifth wheel locking mechanism

1997-06-20

1999-11-23

Hurley, Kevin

Land vehicles

Wheeled

Articulated vehicle

B62D 5312

Patent

active

059886650

ABSTRACT:
A novel interconnection of the jaw, wedge and operating handle in a fifth wheel facilitates the provision of a secondary locking mechanism which further insures the security of the system. In the invention, the jaw is connected to the operating handle by a pivoting timing lever which pivots off a pin on the jaw such that the jaw remains engaged with the fifth wheel until the wedge is substantially removed from engagement with the jaw. In cooperation with the primary locking mechanism, a secondary lock is provided at the end of the operating handle such that a pin arrangement engages a stop on the fifth wheel assembly until positively released by the operator.

REFERENCES:
patent: 2726878 (1955-12-01), Fontaine
patent: 3171672 (1965-03-01), Dalton
patent: 3224788 (1965-12-01), Steinway
patent: 3318616 (1967-05-01), Fontaine et al.
patent: 3630545 (1971-12-01), Fontaine et al.
patent: 3844584 (1974-10-01), Fontaine
patent: 4140328 (1979-02-01), Fontaine
patent: 4477100 (1984-10-01), Elyakim
patent: 4946183 (1990-08-01), Benson et al.

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