Soil preparation implement

Details Soil preparation implement Soil preparation implement

A - Human Necessities

01

B

97/59, 97/70.8

A01B 39/19 (2006.01)

Patent

CA 1178480

ABSTRACT OF THE DISCLOSURE An upstanding housing is provided and mounted in trailing relation to a depending tool shank by generally horizontal upper and lower pivot links having their forward ends pivotally supported from the tool shank and their rear ends pivotally supported from the housing. A driven power shaft is journaled in the upper portion of the housing and an output shaft is journaled in the lower portion of the housing. The shafts are equipped with sprocket wheels interconnected by a chain trained thereabout and a horizontally shiftable and spring biased idler sprocket wheel is engaged with one of the reaches of the chain extending between the sprocket wheels for tensioning the chain. A rod weeder shaft has one end supported from the output shaft and additional laterally spaced depending tool shanks include trailing journal structures mounted for limited vertical shifting relative thereto and the rod weeder shaft has longitudinally spaced portions thereof journaled by the journal structures. Generally horizontal front-to-rear extending connecting links are pivotally connected between the journal structures and the corres- ponding tool shank lower end portions and the journal structures include vertically spaced transverse bores formed therethrough in which pivot pins are received for selective vertical adjustment of the pivot connections between the journal structures and the rear ends of the links extending between the journal structures and the associated tool shanks.

406063

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