Power operated trimming tool

A power operated trimming tool assembly comprising:

• a power operated trimming tool including:
• an elongated handle assembly including a throughbore extending along a longitudinal axis of the handle assembly, the handle assembly including handle including a handle body and a handle extension extending distally from the handle body, the handle extension having an inner surface defining a portion of the throughbore and the inner surface of the handle extension including a bearing seating region;
• a drive gear supported for rotation about a drive gear axis of rotation by a shaft support assembly, the drive gear including a worm gear driver at a distal end portion of the drive gear and an intermediate shaft extending from the worm gear driver;
• the shaft support assembly including one or more bearing support assemblies disposed in the bearing seating region of the handle extension, the one or more bearing support assemblies of the shaft support assembly supporting the drive gear for rotation about the drive gear axis of rotation;
• a head assembly affixed to the handle extension of the handle assembly, the head assembly including a frame body and a rotating element;
• the rotating element supported for rotation about an axis of rotation, the drive gear operatively coupled to the rotating element to rotate the rotating element about the axis of rotation of the rotating element;
• the frame body including an interface portion and a support portion extending from the interface portion, the interface portion coupled to a distal end portion of the handle extension to couple the head assembly to the handle assembly, the support portion supporting the rotating element;
• and
• a shaft drive transmission including a driver assembly releasably positioned within the handle assembly throughbore, a drive fitting supported by the driver assembly engaging the drive gear such that rotation of the drive fitting rotates the drive gear about the drive gear axis of rotation.

A power operated trimming tool comprising:

• an elongated handle assembly including a throughbore extending along a longitudinal axis of the handle assembly, the handle assembly including handle including a handle body and a handle extension extending distally from the handle body, the handle extension having an inner surface defining a portion of the handle assembly throughbore and the inner surface of the handle extension including a bearing seating region, the bearing seating region defining a part of the handle assembly throughbore that is distal to the handle body;
• a drive gear supported for rotation about a drive gear axis of rotation by a shaft support assembly, the drive gear including a worm gear driver at a distal end portion of the drive gear and an intermediate shaft extending from the worm gear driver;
• the shaft support assembly including one or more bearing support assemblies disposed in the bearing seating region of the handle extension, the one or more bearing support assemblies of the shaft support assembly bearing against the intermediate shaft to support the drive gear for rotation about the drive gear axis of rotation;
• a head assembly affixed to the handle extension of the handle assembly, the head assembly including a frame body and a rotating element;
• the rotating element supported for rotation about an axis of rotation, the drive gear operatively coupled to the rotating element to rotate the rotating element about the axis of rotation of the rotating element;
• and
• the frame body including an interface portion and a support portion extending from the interface portion, the interface portion coupled to a distal end portion of the handle extension to couple the head assembly to the handle assembly, the support portion supporting the rotating element.