Wing fold implement with latching structure

Details Wing fold implement with latching structure Wing fold implement with latching structure

1988-08-15

1989-09-19

Johnson, Richard J.

Earth working

Plural wheeled implements

Outrigged implement adjustable inwardly

172466, 172776, A01B 7300

Patent

active

048672459

ABSTRACT:
An agricultural implement with a main frame and inner and outer wing frames that include gravity actuated latching structure securing the wing frames in a folded position. The latching structure automatically locks the wing frames together as they are pivoted upwardly in the folded position toward a transport position and unlocks the wing frames as they are pivoted downwardly toward a transport position.

REFERENCES:
patent: 3321028 (1967-05-01), Groenke
patent: 3948327 (1976-04-01), Parker et al.
patent: 3967684 (1976-07-01), Haverdink
patent: 4133391 (1979-01-01), Richardson et al.
patent: 4178998 (1979-12-01), Rockwell
patent: 4204575 (1980-05-01), Richardson et al.
patent: 4206816 (1980-06-01), Richardson et al.
patent: 4529043 (1985-07-01), Jensen et al.
patent: 4615397 (1986-10-01), Hastings
patent: 4619330 (1986-10-01), Machnee
patent: 4660654 (1987-04-01), Wiebe et al.

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