公开(公告)号：EP1152437A1

公开(公告)日：2001-11-07

申请号：EP00971823.0

申请日：2000-11-07

申请人： Kaneka Corporation ,  Tochigi Kaneka Corporation

发明人： IWAI, Masaharu, c/o Tochigi Kaneka Corp. ,  HOSOKAWA, Masami, c/o TOCHIGI KANEKA CORP.

IPC分类号： H01F7/02

CPC分类号： G03G15/0921 ,  H01F7/0268

摘要： A magnet roller (10) capable of further enhancing an image quality by increasing the flux densities of a specific magnetic pole and other magnetic poles and implementing this magnetic pole pattern at low costs, comprising a plurality of magnet pieces (12, 14, 16, 18) joined to each other at joint surfaces and mounted on the outer periphery of a shaft (20), wherein respective joint surfaces (13, 15, 17, 19) of the magnet pieces are provided along a roller radial direction, and the orientation magnetizing directions (22, 24, 26, 28) of adjoining magnet pieces (12, 14, 16, 18) are set toward the joint surfaces (13, 15, 17, 19), whereby the peaks (32a, 34a, 36a, 38a) of magnetic poles (32, 34, 36, 38) are generated on extensions from the joint surfaces (13, 15, 17, 19).

摘要翻译： 一种能够通过增加特定磁极和其他磁极的磁通密度并以低成本实现该磁极图案而进一步提高图像质量的磁性辊（10），包括多个磁体片（12,14,16， 18）彼此接合并且安装在轴（20）的外周上，其中，磁体片的各个接合表面（13,15,17,19）沿着辊径向设置，并且朝向 将邻接的磁片（12,14,16,18）的磁化方向（22,24,26,28）朝向接合面（13,15,17,19）设置，由此，峰（32a，34a，36a， 38,38,38）在从接合表面（13,15,17,19）延伸的部分上产生。