RAZOR BLADE, RAZOR HEAD, AND FABRICATION METHOD THEREOF

• Main Authors: IOANNIS KOMIANOS, ANASTASIOS PAPAGEORGIOU, MICHALIS KAROUSSIS, VASSILIS PAPACHRISTOS, PANAGIOTIS ZAFIROPOULOS, DIMITRIOS EFTHIMIADIS, NIKOLAOS SKOUNAKIS, VASILEIOS DAVOS
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2017
• Subjects: CUTTING; HAND CUTTING TOOLS; HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SEVERING; TRANSPORTING

PROBLEM TO BE SOLVED: To particularly alleviate the difficulties in the prior art.SOLUTION: An integrally formed hard razor blade made of martensite stainless steel comprises: a cutting edge part which extends along a cutting edge part axis in a cross section and comprises a cutting edge at one end thereof; a stem which extends along a stem axis; and a bend part interposed between the cutting edge part and the stem. The razor blade has a concave surface and a convex surface on an opposite side, an average curvature radius of a concave surface of the bend part is between 0.5 mm and 1 mm, and an average curvature radius at a center of the bend part exceeds 0.535 mm. The integrally formed hard razor blade further includes at least one of the following shape parameters: a narrow-angle measured between the cutting edge part axis and the stem axis is between 95° and 140° ; the razor blade comprises an inside surface and an outside surface on an opposite side; and a thickness measured between the inside surface and the outside surface is between 0.095 mm and 0.105 mm.SELECTED DRAWING: Figure 2b 【課題】本発明は、先行技術の難点を緩和することを特に目的としている。【解決手段】マルテンサイトステンレス鋼から作られた一体成形された硬いかみそり刃であって、断面において、切断刃先部軸線に沿って延在し、一端に切断刃先を備える切断刃先部と、基部軸線に沿って延在する基部と、前記切断刃先部と前記基部との間に介在する曲げ部とを備え、前記かみそり刃は、凹面と反対側の凸面とを有し、前記曲げ部の凹面における平均曲率半径が０．５ミリメートルから１ｍｍの間であり、前記曲げ部の中央の平均曲率半径が０．５３５ミリメートルを超え、前記一体成形された硬いかみそり刃が、以下の形状パラメータ、すなわち、前記切断刃先部軸線と前記基部軸線との間で測定された狭角が、９５°から１４０°の間であること、前記かみそり刃は、内側面と反対側の外側面とを備え、前記内側面と前記外側面との間で測定した厚さが０．０９５ｍｍから０．１０５ｍｍの間であることのうちの少なくとも１つをさらに含む【選択図】図２ｂ