Patent ID: 6237696
Filing Date: 2001-05-29
Classification: A01B

Abstract:
A scraper assembly for a disc opener comprising:a scraper plate defining a scraper edge for contacting and scraping a disc, said scraper plate defining a mounting region remote from said edge;a scraper plate mount adjacent said mounting region;a resilient component interposed between said mounting region and said plate mount; anda spaced pair of fasteners extending through said mounting region to secure said scraper plate and resilient component to said scraper plate mount, said pair of fasteners being located in selected positions in said mounting region relative to said resilient component such that said scraper plate is capable of being tilted or rocked relative to said scraper plate mount in response to forces applied to said scraper plate;wherein said fasteners are capable of being independently tightened and loosened to vary the degree of compression of said resilient pad, the tightening of both of said fasteners tending to rock said scraper plate about a first axis extending generally parallel to a line extending between said fasteners and to increase the force applied to a disc surface via said scraper edge while differential tightening of said fasteners tends to rock said scraper plate about a second axis so as to affect alignment between said scraper edge and said disc surface.