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US 4,230,435 AGranted
Backhoe finishing tool
OwnerAlbert J. Azevedoinventor
Life of this patent
Estimating the term…
Abstract
A surface finishing tool for a backhoe comprising a pair of arms which are pivoted on the brackets which extend along the back of the bucket so as to depend therefrom. A scraper of approximately the width of the bracket is welded across the ends of the arms and a stop bar on the arms engages the brackets when the bucket is in its load-carrying position whereby the bucket may be pulled to drag the scraper along the surface. When in the raking or digging positions the arms merely hang down along the back of the bucket with the scraper blade free of engagement with ground.
Claims3
In combination with a backhoe including:
- a boom;
- a bucket pivotally mounted on the end of said boom;
- a row of teeth along the lip of said bucket;
- a pair of generally parallel brackets along the back of said bucket;
- a pair of links connecting said bracket and said boom;
- and
- hydraulic means connecting said boom and said links for tilting said bucket between a raking position with the ends of said teeth disposed downwardly, digging position with said teeth disposed downwardly and in the direction of said boom, and a carrying position with said teeth disposed upwardly;
- a surface finisher means for scraping and leveling a trench comprising:
- an arm pivoted on said brackets to depend therefrom;
- a scraper of approximately the width of said bucket and having a blunt, flat bottom edge fixed on the end of said arm;
- and
- stop means on said arm to limit pivotal movement thereof away from said bucket when in said carrying position.
9 more elements
Dependencies are inferred from the claim text.