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Mechanism for slowing down idling shoe of an electric polisher

  • US 6,264,539 B1
  • Filed: 01/12/2000
  • Issued: 07/24/2001
  • Est. Priority Date: 01/12/2000
  • Status: Expired due to Fees
First Claim
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1. A mechanism for slowing down idling shoe of an electric polisher, comprising a housing that forms a body of the polisher, an actuating spindle that downward extends through a protective cover connected to a bottom of said housing has a lower end forming an eccentric shaft, a fan that is mounted on said actuating spindle, a fixing seat that is mounted around said eccentric shaft of said actuating spindle and has a ball bearing fitted therein, a brake ring that has an elastic inner ring tightly fitted around a lower outer periphery of said fixing seat and an outer ring engaged with an underside of said protective cover, a shoe that is screwed to a bottom of said fixing seat for holding a polishing element to a bottom surface of said shoe, and a washer that is positioned between said fixing seat and said shoe;

  • whereby when said shoe is idling, said eccentric shaft of said actuating spindle brings said fixing seat to rotate synchronously in eccentric motion to increase a frictional force between said fixing seat and said brake ring and thereby slow down said idling shoe.

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