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Router attachment

  • US 4,566,512 A
  • Filed: 03/11/1985
  • Issued: 01/28/1986
  • Est. Priority Date: 03/11/1985
  • Status: Expired due to Fees
First Claim
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1. An attachment for a router having a flat sole plate, an electric motor secured to the sole plate and means for releasably coupling a cutting tool to the motor shaft, said attachment comprising:

  • a rigid member having a pair of parallel flat surfaces, one of said surfaces being adapted to fit in close abutting relationship against the said router sole plate, there being an aperture extending through the member;

    an elongated, rigid end element;

    a massive block of rigid material having a pair of flat, parallel ends, said block having open end rigidly secured to the surface of the member opposite that adjacent the router sole plate, the end element being rigidly secured to the other end of the block in cantilevered disposition extending in spaced apart parallelism with the member and over said aperture, said element having an opening axially aligned with the aperture in the member;

    bearing means in the element opening; and

    an elongated rotatable cutting tool including a rotatable shaft having one end mounted in said bearing means and projecting through the member aperture in position to be coupled with the router motor shaft by said coupling means, said tool including a plurality of cutting vanes rigidly secured to the tool shaft and projecting radially therefrom, whereby the massive block and element support the outer end of the tool against vibration during cutting operations with the attachment.

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