Patent ID: 9038745
Filing Date: 2015-05-26
Classification: B25B,B25F

Abstract:
1. A drive train for a powered hand tool, the drive train comprising: a motor that converts electrical power into rotational motion of a motor shaft about a first axis; a drive shaft configured to rotate about a second axis, the second axis being substantially parallel to the first axis; a rotational coupling mechanism configured to rotationally couple the motor shaft to the drive shaft; a tool chuck configured to receive a tool bit; a first bevel gear coupled to the drive shaft and configured to rotate about the second axis; and a second bevel gear orthogonal to, and enmeshed with, the first bevel gear such that the second bevel gear is configured to rotate about a third axis that is orthogonal to the second axis in response to rotation of the first bevel gear about the second axis, wherein the second bevel gear is coupled to the tool chuck such that, in a first mode the tool chuck is rotatable about the second axis, so as to adjust an orientation of the tool chuck, and in a second mode the tool chuck is rotatable about the third axis in response to operation of the motor and rotation of the second bevel gear about the third axis.