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THUMB FOR AN EXCAVATOR MACHINE WITH STRUCTURE SUPPORT

  • US 20140007467A1
  • Filed: 07/06/2012
  • Published: 01/09/2014
  • Est. Priority Date: 07/06/2012
  • Status: Active Grant
First Claim
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1. A thumb for a machine, comprising:

  • a first side plate having an outer surface, an inner surface oppositely disposed from the outer surface, a first end having a connection for pivotally connecting the first side plate to a linkage assembly of the machine, and a second end oppositely disposed from the first end;

    a second side plate having an outer surface, an inner surface oppositely disposed from the outer surface, a first end having a connection for pivotally connecting the first side plate to a linkage assembly of the machine, and a second end oppositely disposed from the first end;

    a plurality of teeth each having a work material engaging end and a structure support end oppositely disposed from the work material engaging end; and

    a thumb structure support, comprising;

    a first structure support plate having oppositely disposed first and second end edges, oppositely disposed first and second lateral edges, an outer surface having a convex curvature as the outer surface extends from the first end edge to the second end edge, and an inner surface opposite the outer surface, the second end of the first side plate being connected to the outer surface of the first structure support plate proximate the first lateral edge of the first structure support plate, the second end of the second side plate being connected to the outer surface of the first structure support plate proximate the second lateral edge, anda second structure support plate having oppositely disposed first and second end edges, oppositely disposed first and second lateral edges, an outer surface having a convex curvature as the outer surface extends from the first end edge to the second end edge, and an inner surface opposite the outer surface, the first end edge of the first structure support plate being connected to the second structure support plate proximate the first end edge of the second structure support plate, the second end edge of the second structure support plate being connected to the first structure support plate proximate the second end edge of the first structure support plate, and the structure support end of each of the plurality of teeth being connected to the outer surface of the second structure support plate.

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