Rotary or active harrow

Details Rotary or active harrow Rotary or active harrow

A - Human Necessities

01

B

A01B 21/04 (2006.01)

Patent

CA 2078702

ABSTRACT Disclosed is an active rotary harrow adapted to be towed with its longitudinal horizontal axis at an acute angle to a line perpendicular to the direction of travel. The harrow comprises a plurality of unitary tines mounted by means of bolts or rivets on mounting plates which are fixedly attached to the horizontal axis. Such tine is made from a piece of spring steel which is flattened on one end, the flattened portion being mounted directly on the mounting plate by means of two or more apertures. The tines are curved such that the outer end of the tine, being rounded in shape, is directed towards the trailing end of the harrow when in operation. The tines, and to a lesser extent, the mounting plates, are resilient in nature and adapted to be deflected towards the trailing end of the harrow, when obstacles such as rocks are encountered. The tines are also capable of some pivotal deflection, to a lesser extent.

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