| 摘要 |
A blade unit (2) of a safety razor has a flexible blade assembly (5) comprising plurality of blades (16) with parallel cutting edges (17), mounted on a resiliently compliant support structure (4) that includes several spring elements (12) disposed along the blade unit (2) to oppose local deformation of the blade unit (2) under shaving forces imposed in the regions where the spring elements (12) act. The blade unit is able to conform closely to skin undulations due to varying deformation of the support structure (4) along the blade unit being permitted. In an embodiment the support structure (4) is a one piece moulding of resiliently flexible material and includes an upper frame (6) on which the blade assembly (5) is carried, a sub-frame (7) and a base (8), the upper frame (6) and the sub-frame (7) being connected together by a living hinge (9) and the sub-frame (7) and base (8) being connected by another living hinge (10) so that the support structure is Z-shaped in cross-section. The support structure (4) includes two series parallel webs (12, 14) uniformly spaced along the blade unit, the webs (12) of one series serving as springs acting between the upper-frame (6) and sub-frame (7) at the webs (14) of the other series acting as springs between the sub-frame and the base, whereby the webs (12, 14) oppose deformation of the support structure under shaving forces. |
