Safety razors

Abstract

Abstract A SHAVING GEOMETRY ADJUSTMENT FOR A RAZOR BLADE CARTRIDGE CONTAINING A CONTINUOUS BAND OF RIBBONLIKE BLADE INCLUDES A BACK WHICH HAS A SHAVING PLATFORM ON WHICH THE BLADE IS SUPPORTED IN THE SHAVING ZONE AND A GUARD BAR THAT IS MOLDED INTEGRAL WITH THE SHAVING PLATFORM AND SECURED TO THAT PLATFORM BY A FLEXIBLE HINGE ELEMENT AND A FRONT SECURED TO THE BACK WITH SNAP-TYPE CONNECTORS. AN ADJUSTING LEVER IS MOLDED INTEGRAL WITH THE HINGE AND EXTENDS REARWARDLY TO ENGAGE AN ADJUSTING DEVICE. THE ADJUSTING DEVICE IN ONE EMBODIMENT IS A DISC HAVING A SPIRAL CAMMING GROOVE FORMED IN IT, AND IN OTHER EMBODIMENTS IS A GUIDE PLATE CAMMING LEVER ARRANGEMENT. IN ONE OF THOSE ARRANGEMENTS THE GUIDE PLATE HAS TWO CAM FOLLOWER SURFACES SPACED 0.203 INCH APART WHICH COOPERATE WITH A CAMMING SURFACE OR THE CAMMING LEVER WHICH IS COMPOSED OF TWO IDENTICAL SETS OF ARCUATE SEGMENTS, ONE SEGMENT HAVING A RADIUS OF 0.77 INCH AND THE OTHER SEGMENT HAVING A RADIUS OF 0.123 INCH. THE GUIDE PLATE IS POSITIONED AT THE REAR OF THE MAGAZINE BACK AND THE CAMMING LEVER, SECURED TO THE FRONT, EXTENDS THROUGH THE MAGAZINE AND HAS A LIP WHICH KOVERLIES THE GUIDE PLATE AND SECURES THE GUIDE PLATE TO THE CARTIDGE ASSEMBLY, AND ALSO PROVIDES A SUPPLEMENTAL SECURING FUNCTION FOR OTHER COMPONENTS OF THE CARTIDGE ASSEMBLY.

Inventors

• 👤 Warren I Nissen

Bibliographic Details