Impact driver torque control
AssigneeApex Brands, Inc.
InventorKyle M. NEUBAUER
Life of this patent
Estimating the term…
Abstract
An impact driver may include a motor which may output rotational movement, control circuitry which may control delivery of power to the motor, a spindle which may be operably coupled to the motor, a hammer which may be operably coupled to the spindle and may be and configured to move axially along the axis of rotation, and an anvil which may operably couple to an end effector for acting upon a work piece. The control circuitry may measure a parametric proxy for torque. The control circuitry may estimate an amount of torque applied to the end effector as a function of the parametric proxy.
Claims21
An impact driver comprising:
- a motor configured to output rotational movement;
- control circuitry configured to control delivery of power to the motor from a power source;
- a spindle operably coupled to the motor to generate rotational movement of the spindle about an axis of rotation;
- a hammer operably coupled to the spindle and configured to move axially along the axis of rotation;
- and
- an anvil configured to operably couple to an end effector for acting upon a work piece;
- wherein the control circuitry is configured to measure a parametric proxy for torque, and
- wherein the control circuitry estimates an amount of torque applied to the end effector as a function of the parametric proxy.
An impact assembly of a hand tool, the impact assembly comprising:
- a spindle operably coupled to a motor to generate rotational movement of the spindle about an axis of rotation;
- a hammer operably coupled to the spindle and configured to move axially along the axis of rotation;
- an anvil configured to operably couple to an end effector for acting upon a work piece;
- and
- control circuitry configured to control operation of the impact assembly,
- wherein the control circuitry is configured to measure a parametric proxy for torque, and
- wherein the control circuitry estimates an amount of torque applied to the end effector as a function of the parametric proxy.
21-28. (canceled)
Dependencies are inferred from the claim text.