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Device for attaching a tool

  • US RE33,335 E
  • Filed: 06/29/1988
  • Issued: 09/18/1990
  • Est. Priority Date: 02/18/1984
  • Status: Expired due to Term
First Claim
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1. Apparatus for attaching a tool in portable angled grinders comprising a motor;

  • angular drive means, and a securing station for the tool;

    said angular drive means comprising a pinion, a beveled cogwheel, and a hollow driveshaft having an axis;

    a spindle positioned in said driveshaft;

    housing means for housing said drive means;

    displacing means, said spindle being positioned in said driveshaft so that it cannot rotate .Iadd.relative to the driveshaft .Iaddend.but can be displaced axially from outside said housing means by said displacing means;

    activating means in said displacing means;

    traveling means and a terminal component, said spindle having an appendage;

    resilient means between a face of said driveshaft and said appendage on said spindle, said activating means in said displacing means acting .[.through said traveling means at an angle to the axis of said driveshaft.]. on said terminal component against a force of said .[.resilinet.]. .Iadd.resilient .Iaddend.means .Iadd.by use of surface of said traveling means, said surface being inclined at an angle to the axis of said driveshaft.Iaddend.;

    said .[.driveshaft.]. .Iadd.spindle .Iaddend.having a threaded pin;

    a nut screwed onto said threaded pin;

    a bushing-shaped cover on said driveshaft for limiting travel so that said nut screwed onto said threaded pin on said .[.driveshaft.]. .Iadd.spindle .Iaddend.is lifted away from the tool. .[.

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