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Hopper device for material spreader having a multi-positionable cover

  • US 4,261,520 A
  • Filed: 11/09/1979
  • Issued: 04/14/1981
  • Est. Priority Date: 11/09/1979
  • Status: Expired due to Term
First Claim
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1. In a hopper device adapted to be mounted transversely across the material discharge end of a vehicle to spread particulate material over a roadway being traveled by said vehicle, said hopper device having fixed first and second spaced end plates with upper portions, a fixed back wall connected between said end plates, an elongated auger extending between said end plates, means for rotating said auger about an axis generally parallel to said back wall for conveying said material toward said first end plate, the improvement comprising:

  • an independent cover member having opposite edges and extending between said end plates, said cover member having a first wall normally forming a bottom of said hopper with a discharge opening and second wall generally perpendicular to said first wall, said second wall having an outboard edge;

    each edge of said cover member having a first receptacle adjacent said outboard edge and a second receptacle spaced from said first receptacle;

    each said end plate having first, second and third spaced apertures therethrough with said first aperture adjacent said upper portion;

    said cover member being releasably secured to said hopper in a spreading position with said first wall forming a front and said second wall forming a bottom of said hopper by a first mounting arrangement, in a dumping position forming a top of said hopper by a second mounting arrangement, and in a cleaning position exposing said auger by a third mounting arrangement;

    said first mounting arrangement including pin means extending through said first apertures into said first receptacles and through said second apertures into said second receptacles for fixedly and axially securing said cover member;

    said second mounting arrangement including pin means extending through said second apertures into said second receptacles and through said third apertures into said first receptacles for fixedly and axially securing said cover member;

    said third mounting arrangement including pin means extending only through said first apertures into said edges of said cover adjacent said first receptacles for pivotally and axially securing said cover member whereby said cover member is pivotally movable between a first position with said cover member depending downward from said outboard edge and a second position with said cover member extending upward above said end plates toward said back wall from said outboard edge.

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