Patent ID: 6907717

Claim:
A pneumatic strapping tool for tensioning a strap around a load, adhering the strap onto itself, and cutting a feed end of the strap, comprising: a piston; a weld motor operably connected to the piston; a vibrating weld element operably connected to the piston for contacting the strap and adhering the strap onto itself; a tensioning motor configured for unidirectional rotation; a feed wheel; a drive assembly operably connecting the tensioning motor to the feed wheel to tension the strap prior to adhering the strap onto itself; and a transmission cooperating with the drive assembly, the transmission being switchable between a first state in which the transmission engages the drive assembly to permit only one-way rotation of the drive assembly and a second state in which the transmission permits two-way rotation of the drive assembly, wherein the drive assembly includes a drive shaft and the transmission includes a one-way bearing that bears on the drive shaft to permit one-way rotation of the drive shaft and to prevent rotation of the drive shaft in an opposing direction.