Safety razor and blade unit for safety razor

US10717202B2 · kind B2 · utility

Assignee

• BEIERSDORF AG · DE

Inventors

• Michael Lessmann · Hamburg, DE
• Jens Treu · Norderstedt, DE
• Kesen Zeng · Hamburg, DE
• Yvonne Neumann · Hamburg, DE
• Hiroyuki Nakasuka · Seki, JP
• Ralf Hagens · Hamburg, DE
• Philip Drescher · Hamburg, DE

Key dates

• Filing date: Jul 24, 2015
• Grant date: Jul 21, 2020
• Expiry date: Jan 14, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B26B21/4068
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

Disclosed is a blade unit for a safety razor, comprising: a blade housing comprising a plurality of blades having respective cutting edges lying in a shaving plane and being arranged to exert a cutting action when moved across a user's skin in a shaving direction; and a guard in front of the cutting edges and a cap to the rear of the cutting edges, the guard including an elongate lubricating strip, the cap including a non-flexible concave back portion supporting a convex lubricating pad, the convex lubricating pad having a convex skin-contacting surface and a rear edge curved in a single arc shape along its entirety. No separate frame is provided around an outer perimeter for fixing the convex lubricating pad, so that the convex lubricating pad rear edge meets flush with the non-flexible concave back portion, providing a smooth, lubricated rear edge of the blade unit.