Hand-held battery powered center punch band clamp tool

摘要

A battery powered banding tool is adapted with a punch for use in tightening and securing center punch type band clamps. A hand-held electrically powered drill is configured for rotationally driving a band tensioner mounted thereto. The band tensioner includes a gear box, and a mount including a generally U-shaped rigid strap which engages the rear of the driving tool to secure the gear box. The gear box contains a worm gear axially coupled to the chuck for powered driven rotation thereby. The worm gear is in intermeshing relation with a winder gear disposed within the gear box and configured for rotation about an axis disposed generally perpendicular to the worm gear axis. A winder, defining a band-receiving slot, is affixed to the winder gear and rotationally driven thereby. A punch assembly, defining a band-receiving slot, is disposed in forwardly spaced aligned relation with the winder. The punch assembly includes a pivotal punch that functions to allow the user to lock a center punch band clamp by deforming the band within the confines of the band buckle upon impact.

主权项

1. A band clamp tensioning tool, for attachment to a hand-held power tool having a main body and an electrical power source configured for rotationally driving a chuck, to tension and lock a center punch band clamp having a band and a buckle, said apparatus comprising:
a band tensioning assembly attached to the power tool; said band tensioning assembly including a gear box and a gear box mount mechanically coupled to said chuck; said gear box including a worm gear axially coupled to the chuck for powered driven rotation thereby; a winder gear in intermeshing relation with said worm gear; said winder connected to said winder gear, said winder defining at least one band-receiving slot; a punch assembly, defining a slot, connected to the distal end of said gear box with the slot disposed in forwardly spaced aligned relation with said winder; said punch assembly including a pivotal punch having a first end pivotally connected to said gear box, and a second end having a first side adapted with a tip positioned to engage the band clamp buckle, and an opposing second side that provides a surface for receiving an impact blow from a blunt striking implement so as to securely lock the band clamp by impact of the pointed tip of said pivotal punch that deforms a portion of the band within the band buckle.