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    • 68. 发明专利
    • CUTTING CUTTER FOR AUTOMATIC CUTTING MACHINE
    • JPH07237176A
    • 1995-09-12
    • JP5119294
    • 1994-02-23
    • TOYO ELECTRIC MFG CO LTD
    • SAMEJIMA KENJI
    • B26D3/14B26D1/06B26D5/00
    • PURPOSE:To prolong the service life of edges, and make a width dimension of a straight line cutting part uniform by arranging straight line-shaped edges on both ends in the short direction of a thin rectangular cutting cutter to cut a sheet-like member, and arranging an edge curved in a circular arc shape on one end in the lengthwise direction. CONSTITUTION:In an automatic cutting machine, a sheet-like member such as cloth, a paper of vinyl is expansively layered on a cutting surface, and this is sucked and fixed, and is cut in a prescribed pattern by a cutting cutter having a cutting head to move to the cutting surface. In such a cutting machine, a cutting cutter 43 particularly exclusively used for notch cutting is a thin rectangular shape, and straight line-shaped edges 43A are arranged on both ends in the short direction, and an edge 43B is arranged on one end in the lengthwise direction, but in this case, the edge 43B is formed in a shape curved in a circular arc shape, and is formed as an edge having a contact angle beta to the sheet- like member. Thereby, cutting resistance of the cutting cutter 43 is reduced, and the service life of the edge 43B is prolonged.