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Interchangeable tool operating apparatus with plural motion

  • US 4,173,828 A
  • Filed: 12/19/1977
  • Issued: 11/13/1979
  • Est. Priority Date: 12/19/1977
  • Status: Expired due to Term
First Claim
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1. A tool operating apparatus for driving alternatively at least a first tool and a second tool from a single tool driving means to which each of said tools can be removably coupled, in which the tool driving means comprises a rotatable shaft and a support in which the shaft is journaled for rotation around its longitudinal axis, and tool engagement means fixed to the shaft, the first tool having a first aperture for receiving the shaft and means in the first aperture to engage the tool engagement means for rotating the first tool with the shaft, the second tool having a second aperture for receiving the shaft and the tool engagement means, and means on the second tool to engage the support so as to hold the second tool non-rotatably fixed to said support, the shaft and the tool engagement means being free to rotate relative to the second tool within the second aperture, and means in the second aperture for coupling with the tool engagement means to drive the second tool in an oscillatory path relative to said axis during rotation of the shaft in the second aperture.

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