Verfahren zum Einspritzgiessen von Rasierklingeneinheiten und Einheiten hergestellt durch ein solches Verfahren

• Main Authors: CONRAD, WILLIAM T., JR., SHELTON, CONNECTICUT 06484, US, BUTLIN, C. EDWARD, ERIE, PENNSYLVANIA 16505, US, BUTLIN, EDWARD S., ERIE, PENNSYLVANIA 16505, US
• Format: Patent
• Language: German
• Published: 02.04.1998
• Edition: 6
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CUTTING; HAND CUTTING TOOLS; HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; SEVERING; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The present invention provides a wet-shaving razor unit with at least one exposed blade edge (E) for shaving which comprises a continuous thermoplastic body (9) to which the blade (B) is secured against movement and vibration during shaving. The body (9) includes skin-engaging portions which provide a constant shaving geometry over the length of said blade. A method of producing the razor unit is also provided in which the blade (B) is supported in a mould with the edge (E) surrounded by male mould members (M1, M2, M3). The blade (B) is mechanically buttressed on both sides and thermoplastic material is injected into the mould to provide counterbalancing high pressure on both sides of the blade (B) during moulding to prevent deformation of the blade (B).