Shaver provided with a shaving head having a sub-frame and a main frame
US6671961B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2000 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jul 23, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B21/227
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A shaving device which comprises a shaving head (1) having at least one cutting blade (5) and two skin-supporting members (11, 13), said skin-supporting members, viewed in the shaving direction, being arranged, respectively, in front of and behind said cutting blade, and defining a contact surface (17) between the shaving head and a skin surface (53) to be treated. The cutting blade and the skin-supporting members are mounted to a sub-frame (9), which is coupled to a main frame (19) and can be displaced with respect to said main frame against a spring force (Fs). The main frame comprises two further skin-supporting members (21, 23) which, viewed in the shaving direction, are arranged, respectively, in front of and behind the sub-frame and extend substantially in said contact surface. As a result, a contact force (Fc) between the skin surface and the skin-supporting members of the sub-frame and hence a skin curvature (&ohgr;2) between the skin-supporting members of the sub-frame, i.e. at the location of the cutting member, is mainly determined by the value of said spring force and, accordingly, substantially independent of a pressure force (Fp) exerted by a user to press the shaving…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.