Multi-speed power tool with electronic clutch

US10850380B2 · kind B2 · utility

Assignee

• Milwaukee Electric Tool Corporation · US

Inventors

• Alex Huber · Brookfield, US
• Carl B. Westerby · Menomonee Falls, US
• Daniel R. Ertl · Brookfield, US
• Matthew P. Wycklendt · Madison, US
• Matthew J. Mergener · Mequon, US
• Mark A. Kubale · West Bend, US
• Cole A. Conrad · Wauwatosa, US
• Wing Fung Yip · Kowloon, CN

Key dates

• Filing date: May 4, 2016
• Grant date: Dec 1, 2020
• Expiry date: Dec 31, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2500/7104
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A power tool and a method of operating a power tool including a motor, a clutch collar including a plurality of settings, a wireless transceiver operable to form a wireless connection with a remote device, and a processor coupled to the clutch collar and the wireless transceiver. The processor receives, via the wireless transceiver, a mapping including a plurality of torque levels corresponding to the plurality of settings. The processor detects that the clutch collar is set to a setting of the plurality of settings. The processor is further determines the torque level for the setting from the mapping and detects, during the operation of the power tool, that a torque of the power tool exceeds the torque level. The processor is also configured to generate an indication that the torque exceeds the torque level. The indication may include flashing a light, ratcheting the motor, and stopping the motor.