Patent ID: 7024776

Claim:
A safety razor blade unit comprising at least one blade with a sharp cutting edge extending lengthwise of the blade unit, the blade being carried by a blade assembly, a sub-frame (support structure) to which the blade assembly is pivotally joined by a hinge running the length of the blade, the sub-frame (support structure) including first spring elements, disposed along the length of and between the blade assembly and the sub-frame, said first spring elements being configured to resiliently oppose local deformation of the blade unit under shaving forces encountered in regions where the first spring elements act, said sub-frame being pivotally joined to a base, said base having (and) second spring elements disposed along the length of and (,) interposed between the sub-frame (support structure) and base (blade assembly), said second spring elements being configured to resiliently bias the blade assembly toward a normal position with respect to the base (support structure).