Personal hygiene device

US11751678B2 · kind B2 · utility

Assignee

• The Braun Corporation · DE

Inventors

• Norbert Schaefer · Frankfurt am Main, DE
• Thomas Fritsch · Eppstein, DE
• Andreas Kramp · Bad Camberg, DE
• Andreas Larscheid · Kelkheim, DE
• Marc KUNZ · Katzenelnbogen, DE
• Robert Schäfer · Frankfurt, DE

Key dates

• Filing date: Dec 14, 2020
• Grant date: Sep 12, 2023
• Expiry date: Aug 12, 2041

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A46B2200/1066
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A personal hygiene device has a handle and a treatment head pivotably connected with the handle. Applying a treatment force against the treatment head causes a pivoting of the treatment head relative to the handle. A sensor, such as, e.g., a Hall sensor, fixedly secured with respect to one of the handle and the treatment head, measures a measurement variable. A sensor cooperation unit defines or influences the measurement variable in dependence on the relative position of the sensor and the sensor cooperation unit, such e.g., as a sensor permanent magnet, fixedly secured relative to one of the handle and the treatment head. A spring unit defines a rest position of the treatment head when no treatment force is applied. The spring unit has a first spring constant in the treatment direction and a second spring constant in a lateral direction, the second spring constant being at least about two times higher than the first spring constant.