Patent ID: 6470846
Filing Date: 2002-10-29
Classification: F01L,F01M

Abstract:
A broaching apparatus for use in a structural body having spaced-apart bearing supports with aligned holes defining an axis, comprising:an elongated broach having a longitudinally extending hole extending from end to end of the broach and having first threads formed along at least a portion of the longitudinally extending hole, the broach having a lead section, a cutting section, and a tail section, the cutting section being configured to enlarge the aligned holes from a smaller first diameter to a larger second diameter, and the lead and tail sections being configured to guide the broach linearly through the aligned holes while maintaining accurate alignment with the axis; and a motivating device including a broach puller and a holder rotatably receiving the broach puller, the broach puller having a shaft that extends through the holder with second threads on one end configured to mateably engage the first threads, the broach puller further having a configured end opposite the one end that is shaped to be engaged and rotatably driven by a machine, the holder including a first end section rotatably abutting the configured end of the broach puller and a second end section configured to abut the structural body, whereby the aligned holes in the structural body can be broached by pulling the elongated broach through the aligned holes by rotating the broach puller.