Spring rockflex bearing arm

Details Spring rockflex bearing arm Spring rockflex bearing arm

A - Human Necessities

01

B

A01B 23/04 (2006.01) A01B 21/08 (2006.01)

Patent

CA 2375755

A disc harrow has a frame and a plurality of earth working discs. Each disc has a central aperture for attachment to a gang shaft. A mount attaches the gang shaft to the underside of the frame and has bearings to permit rotation of the shaft in response to forward movement of the disc harrow. The mount includes a first structural member, a second structural member and a resilient spring connected between the two members. In operation, upon striking of an obstacle by the discs, the gang shaft is permitted to upwardly deflect by the mount to prevent damage to the disc harrow. The second structural member has first and second portions with aligned longitudinal axes. The first and second portions are rotationally connected to permit rotation of the second portion in response to an angular moment applied to the second portion by deflection of the gang shaft. The rotational connection permits the bearing to automatically maintain a preferred alignment with the gang shaft during deflection, thereby preventing damage to the bearing.

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