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Sewing machine clutch with removable locking pin

  • US 7,438,009 B2
  • Filed: 07/26/2007
  • Issued: 10/21/2008
  • Est. Priority Date: 07/26/2006
  • Status: Active Grant
First Claim
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1. A system for selectively securing a flywheel to a driveshaft, the driveshaft including a flange having an aperture, the flywheel having an aperture aligned with the flange aperture, the flywheel and driveshaft being held in an engaged relationship by the locking pin inserted into the flange aperture and the flywheel aperture when the apertures are aligned, the driveshaft further including a central aperture for receiving a retaining knob, the retaining knob retaining the flywheel on the driveshaft, the retaining knob including an aperture sized to receive the locking pin when the locking pin is not being used to engage the flywheel and the driveshaft.

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