Land vehicles – Wheeled – Articulated vehicle
Patent
1989-03-21
1990-04-17
Marmor, Charles A.
Land vehicles
Wheeled
Articulated vehicle
280474, 172450, A01B 59043
Patent
active
049174061
ABSTRACT:
The invention relates to a length-adjustable holding device (5) for supporting the lower steering arms of a three-point coupling device of an agricultural tractor. The holding device (5) comprises a helical spring (6) and an adjusting member (9). The spring and adjusting member are connectable to each other by means of through-bores (10) in the adjusting member (9) and a pin (11) insertable between two coils (6a, 6b) of the helical spring (6). The axes (12) of the through-bores (10) extend at an angle and the distance between the bores (10) differs from the pitch of the two coils (6a, 6b) in order to achieve a fine length adjustment. The adjusting member (9) is guided via a guiding projection (15) in a bore (16) of a guiding sleeve (14) which is received in the cavity of the helical spring (6) so as to be non-rotatable and axially unmovable.
REFERENCES:
patent: 2775180 (1956-12-01), DuShane
patent: 3056458 (1962-10-01), Gray
patent: 3250524 (1966-05-01), Boatright
patent: 4470613 (1984-09-01), Sykes
Frackenpohl Alfred
Herchenbach Paul
Rugen Hermann
Jean Walterscheid GmbH
Marmor Charles A.
McGiehan Donn
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