Trailing arm mechanism

Details Trailing arm mechanism Trailing arm mechanism

A - Human Necessities

01

B

97/71, 97/76

A01B 19/02 (2006.01) A01B 61/04 (2006.01)

Patent

CA 1098757

A B S T R A C T A trailing arm mechanism is provided for use in an implement such as a spring tine harrow. The trailing arm is pivotally mounted on a support frame and a coil spring normally under tension is connected between the support frame at a point of attachment lower than the pivotal access of the trailing arm and to the underside of the trailing arm remote from the pivotal access. A pair of parallel plates closely spaced from the trailing arm on each side thereof provides constraining lateral support for the trailing arm. The coil spring extends generally parallel to and closely spaced from the underside of the trailing arm. This enables the trailing arm to clear relatively large obstacles on the ground without being impeded by the spring, whose tension increases only slightly for relatively large upward deflections of the trailing arm.

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