Scraper mechanism for disk gang harrows

Details Scraper mechanism for disk gang harrows Scraper mechanism for disk gang harrows

A - Human Necessities

01

B

97/51

A01B 15/16 (2006.01) A01B 23/06 (2006.01)

Patent

CA 1076872

SCRAPER MECHANISM FOR DISK GANG HARROWS ABSTRACT OF THE DISCLOSURE A scraper mechanism for the disk gangs of disk harrows and embodying a series of flexible scraper arms, one for each disk, which depend from a common scraper support and carry scraper blades at their lower ends. The upper ends of the scraper arms are turned laterally and provide short attachment sections of wide angle concavo-convex configuration. A clamping bolt extends through the apex of each section and the support and, upon tightening thereof progressively flattens the section against the support and thus swings the depending portion of the scraper arm in the direction of the respective disk for regulating the pressure of the scraper blade against the disk. Means are provided for shifting the position of the common scraper support so that collective adjustment of the various scraper blades may be effected. Where folding wing type disk harrows are concerned, a modified scraper arm construction is employed to avoid frame interference in the vicinity of the hinge connection for the wing gang section, such construction embodying a wide angle concavo-convex attachment section wherein the convex side thereof abuts against a flat surface which is downwardly offset from the scraper support. A pair of clamping bolts project through the concavo-convex section on opposite sides thereof and, when tightened, flattens the section against such offset surface for scraper blade pressure regulating purposes. Where a given disk gang utilizes a furrow filler disk at its outer end, a second modified form of scraper arm construction is employed wherein an over- hanging extension bracket on the end of the scraper support is provided. - 2 -

287432

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