Litter collection apparatus
First Claim
Patent Images
1. Litter collection apparatus, comprising:
- a support frame;
means for facilitating movement of said apparatus across a surface;
a receptacle mounted on said frame having a first opening for receiving litter;
a first roll having a plurality of litter contacting projections for contacting litter on said surface;
means for rotating said first roll;
an endless conveyor having a plurality of litter contacting second projections extending outwardly from the outer surface of said conveyor, said conveyor having a first end adjacent to said first roll and close to said surface so that said first projections on said first roll mesh with said second projections on said conveyor and a second end supported on said frame adjacent said opening in said receptacle; and
means for rotating said conveyor in a direction opposite to the direction of rotation of said first roll whereby the projections on said first roll and the projections on said second roll cooperate to lift litter from said surface and said fingers on said conveyor transport litter to said receptacle.
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Abstract
A litter collection apparatus includes a novel arrangement for mounting litter retrieving projections on a retrieving belt of the apparatus, an improved receptacle and mechanism for emptying the receptacle, a novel arrangement for adjustably positioning the apparatus with respect to a surface over which it passes and an improved drive arrangement for the respective components of the apparatus.
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Citations
34 Claims
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1. Litter collection apparatus, comprising:
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a support frame; means for facilitating movement of said apparatus across a surface; a receptacle mounted on said frame having a first opening for receiving litter; a first roll having a plurality of litter contacting projections for contacting litter on said surface; means for rotating said first roll; an endless conveyor having a plurality of litter contacting second projections extending outwardly from the outer surface of said conveyor, said conveyor having a first end adjacent to said first roll and close to said surface so that said first projections on said first roll mesh with said second projections on said conveyor and a second end supported on said frame adjacent said opening in said receptacle; and means for rotating said conveyor in a direction opposite to the direction of rotation of said first roll whereby the projections on said first roll and the projections on said second roll cooperate to lift litter from said surface and said fingers on said conveyor transport litter to said receptacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. Litter collection apparatus comprising:
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a support frame; means for facilitating movement of said apparatus across a surface; litter retrieval means for removing litter from the surface wherein said litter retrieval means comprises a first roll having a plurality of litter contacting first projections extending therefrom and a conveyor having a plurality of litter contacting second projections extending therefrom which mesh with said first projections to remove litter from the surface, said conveyor having a first end adjacent said first roll and a second end supported on said frame; a receptacle mounted on said frame adjacent said conveyor for receiving litter from said second end of said conveyor; and adjustable support means for adjustably mounting said litter retrieval means on said frame whereby said retrieval means may be moved toward or away from the surface, said adjustable support means comprising flexible tension means attached to said retrieval means and lifting means mounted on said frame for moving said tension means and said retrieval means. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22)
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23. Litter collection apparatus comprising:
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a support frame; means for facilitating movement of said apparatus across a surface; litter retrieval means on said frame for removing litter from the surface and receptacle means on said frame for receiving litter from said retrieval means; said litter retrieval means comprising a rotatable roll having a plurality of first projections thereon and a conveyor belt having a plurality of second projections thereon cooperable with said first projections for removing litter from the surface and conveying the litter to said receptacle, each of said second projections having a shaft and an enlarged base portion, said conveyor belt having holding members secured to a first surface thereof for holding said base portions of said second projections on said belt against said first surface. - View Dependent Claims (24, 25, 26, 27, 28)
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29. Litter collection apparatus comprising:
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a support frame; means for facilitating movement of said apparatus across a surface; litter retrieval means on said frame for removing litter from the surface, said retrieval means including a movable and rotatable roll having a plurality of litter contacting first projections thereon, a movable and rotatable conveyor cooperable with said roll having a plurality of litter contacting second projections thereon which mesh with said first projections, and first means for driving said roll and said conveyor; a receptacle on said frame for receiving litter from said conveyor, means for emptying said receptacle, and second means for driving said emptying means; hydraulic power supply means for providing power to said first and second means; and flexible hydraulic fluid lines extending between said hydraulic power supply means and said first means thereby allowing relative movement between said first means and said roll and conveyor. - View Dependent Claims (30, 31, 32, 33, 34)
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Specification