Patent ID: 11878391
Assignee: LAKE COUNTRY TOOL, LLC
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. A rotating tool comprising:
a second housing and a motor, the motor including a drivetrain;
a first housing having a central axis and a wall defining a cavity;
a counterbalance shaft assembly rotatably disposed at least partially within the cavity and a shaft portion of the counterbalance shaft assembly aligned with the central axis;
a mounting assembly disposed at least partially within the cavity, the mounting assembly including a workpiece attachment mechanism; and
a stroke adjuster coupling the counterbalance shaft assembly with the mounting assembly, the stroke adjuster is accommodated by the counterbalance shaft assembly enabling the mounting assembly to adjust its stroke upon rotation of counterbalance shaft assembly, and the mounting assembly variably adjusts a stroke radius of the workpiece attachment mechanism with respect to the central axis of the first housing, the stroke adjuster including a gear automatically adjusting the mounting assembly stroke.