Sweeping machine

  • US 6,324,714 B1
  • Filed: 11/07/2000
  • Issued: 12/04/2001
  • Est. Priority Date: 05/08/1998
  • Status: Expired due to Term
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First Claim
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1. A sweeping machine including a rotatably driven brushing roller which is rotatably mounted at each end in a frame and is driven at one end by a drive means engaging in driver recesses in the brushing roller and forming the mounting for the brushing roller at this end, whereby the brushing roller is displaceable in an axial direction against the effect of a spring towards the driver means to such an extent that the mounting of the brushing roller at the end remote from the driver means will disengage, in that the so axially displaced brushing roller is pivotal out from the region of the mounting by at least the radius of the brushing roller at its end remote from the drive means, wherein the drive means is in the form of a gear wheel whose teeth engage in the driver recesses with play for enabling the pivotal action of the brushing roller, whereby said driver recesses are in the form of axially extending open ended grooves in the inner wall of a central open-ended accommodating space in the brushing roller, which said space accommodates the gear wheel, and the width of the grooves continually decreases at least in a section adjoining their open end-faces.

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