Patent ID: 6695069
Filing Date: 2004-02-24
Classification: A01B

Abstract:
A disc harrow comprising a frame, a disc gang having a gang shaft having a plurality of ground engaging discs centrally mounted on said shaft, and a support assembly for supporting said disc gang from said frame, said support assembly comprising:a) a first structural member having an upper end and a lower end, said upper end attached to said frame and said lower end remote from said frame; b) a second structural member having a first end portion and a second end portion, said first end portion pivotally attached to said lower end of said first structural member, said second end portion having bearing means for rotatably supporting said gang shaft, said second structural member having a longitudinal axis between said first end portion and said second end portion, said second structural member operable to vertically pivot; c) resilient means having an upper and lower end, said upper end pivotally attached to said upper end of said first structural member and said lower end pivotally attached to said second structural member, said resilient means operable to resist vertical pivoting of said second structural member; d) wherein said second end portion is rotatably connected to said first end portion by rotational means to permit said second end portion to rotate with reference to said first end portion about said longitudinal axis of said second structural member in response to angular movement of said gang shaft due to impact of said disc gang with an obstacle.