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Elbow attachment

  • US 6,352,127 B1
  • Filed: 04/16/1998
  • Issued: 03/05/2002
  • Est. Priority Date: 04/16/1998
  • Status: Expired due to Fees
First Claim
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1. An elbow attachment kit for use with a power tool having a housing which supports a drive shaft which is rotary about its longitudinal axis and which protrudes externally of the power tool housing at a driving end of the housing, the attachment kit comprising:

  • a pinion gear adapted to be detachably mounted on the drive shaft at a location externally of the power tool housing and at a predetermined distance from the driving end of the housing, said pinion gear having gear teeth with faces of predetermined face width which extend substantially parallel with the longitudinal axis of the power tool drive shaft, an elbow member, including an elbow member housing having a power tool engaging end which is engageable with the power tool housing adjacent its driving end, said elbow member housing having a housing portion surrounding the pinion gear with an opening therein sufficiently large to freely receive and allow the pinion gear to be released from the elbow member housing without any contact therebetween, a transverse shaft having a longitudinal axis and supported by the elbow member housing to be substantially perpendicular to the longitudinal axis of the drive shaft of the power tool upon engagement of the elbow member housing with the power tool housing, the transverse shaft having a tool engaging end disposed externally of the elbow member housing for engaging a tool, and a face gear having gear teeth which extend substantially radially with respect to the longitudinal axis of the transverse shaft, with the face gear being mounted on the transverse shaft at a predetermined position at which the teeth of the face gear are engageable with the teeth of the pinion gear when the elbow member housing is engaged with the power tool housing.

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