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公开(公告)号：EP2003424A9
公开(公告)日：2009-04-15
申请号：EP06798317.1
申请日：2006-09-25
CPC分类号： G01P3/487 , G01D5/2451
摘要： A magnetic encoder capable of securing sufficient adhesive strength of a scale molded member, preventing occurrence of cracking, breakage, etc., of the molded member, and also manufacturing at a low cost with high productivity is provided.
The present invention is directed to a magnetic encoder equipped with an annular core 20 and an annular scale molded member 42 formed on one surface of the core 20 and constituted by a plastic magnetic material multipolarly magnetized in the circumferential direction thereof. In this encoder, a plurality of radial grooves 21 extended radially and opened in a radially inward direction of the core are formed on one surface of the core 20 so that the grooves are arranged in the circumferential direction, and a filled molded portion 42 constituted by a plastic magnetic material filled in the radial groove 21 is integrally formed with the scale molded member 40.-
公开(公告)号：EP2003424B1
公开(公告)日：2011-07-27
申请号：EP06798317.1
申请日：2006-09-25
CPC分类号： G01P3/487 , G01D5/2451
摘要： This invention provides a magnetic encoder that can satisfactorily ensure the adhesive strength of a scale molded product, can prevent the occurrence of cracking, fissuring or the like in the molded product, and further can be manufactured at low cost with high productivity. The magnetic encoder comprises an annular core metal (20) and an annular scale molded product (42) provided on one side of the core metal (20) and formed of a plastic magnetic material which has been multipolarly magnetized in the circumferential direction. In this encoder, a plurality of radially provided grooves (21) extended radially on one side of the core metal (20) and open to the internal diameter direction are circumferentially arranged, and a filling molded part (42) formed of a plastic magnetic material filled into the radially provided grooves (21) is provided integrally with a scale molded product (40).
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