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1. (WO2018033547) METHOD FOR DETECTING ATTACHMENT HEAD INSTALLATION AND REMOVAL

Pub. No.:    WO/2018/033547    International Application No.:    PCT/EP2017/070691
Publication Date: Fri Feb 23 00:59:59 CET 2018 International Filing Date: Wed Aug 16 01:59:59 CEST 2017
IPC: A61C 17/22
B26B 19/28
B26B 19/38
A61H 23/02
A45D 29/14
A45D 29/05
Applicants: KONINKLIJKE PHILIPS N.V.
Inventors: PENG, Meng
Title: METHOD FOR DETECTING ATTACHMENT HEAD INSTALLATION AND REMOVAL
Abstract:
A drivetrain assembly (100, 200) for a personal care device (10), the drivetrain assembly including a resonator (110) connected to a transmission component (24) configured to transmit oscillations to the removable attachment; and a drive coil (120) configured to oscillate the resonator in a first direction; where the drive coil is configured to generate an installation or removal signal in response to installation or removal of the removable attachment, the installation or removal of the removable attachment generating movement of the resonator in a second direction; and where the drivetrain assembly is configured to communicate the generated signal to a controller.