Harvesters – Transporting attachments
Patent
1982-04-19
1983-12-06
Hirsch, Paul J.
Harvesters
Transporting attachments
56 155, 172679, 280462, A01B 7300
Patent
active
044185170
ABSTRACT:
An actuating mechanism for the transport lock on a crop harvesting machine having a pivotally movable tongue mounted to the frame of the harvesting machine, commonly referred to as a pivot-tongue windrower, is disclosed wherein a first spring is compressible to exert a biasing force on a locking pin to urge the pin through suitable aligned apertures in the base of the tongue and in the frame of the machine to automatically extend the locking pin through the apertures when they become aligned due to manipulation of the pivotal movement of the tongue by the operator at a location remote from the locking pin. A second spring is compressible to exert a biasing force on the locking pin to urge the locking pin into an unlocked position, withdrawn from the hole in the frame, so that the tongue is free to pivotally move relative to the frame. The second spring is operable to automatically compress the first spring when the locking pin is moved to the unlocked position. Accordingly, the actuating mechanism is operable to bias the locking pin in either a locked or an unlocked position.
REFERENCES:
patent: 3751071 (1973-08-01), Patterson et al.
patent: 3832837 (1974-09-01), Burkhart et al.
patent: 3919831 (1975-11-01), Halls et al.
patent: 3993206 (1976-11-01), Jomen et al.
patent: 4037395 (1977-07-01), Henkensiefken
patent: 4081946 (1978-04-01), Ehrhart
Donovan James T.
Ehrhart Philip J.
Webster E. Graham
Hirsch Paul J.
Marquette Darrell F.
Miller Larry W.
Seemar Frank A.
Sperry Corporation
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