| 摘要 |
PROBLEM TO BE SOLVED: To provide a solution that the interchange of a coating roller or other interchangeable rollers in a sheet printer or a sheet finishing processing machine is performed by an especially suitable method. SOLUTION: This roller interchanging device is equipped with a lifting arm device, and a bearing device. In this case, the lifting arm device is equipped with a left lifting arm structure and a right lifting arm structure for moving an interchangeable roller in a space between a working position and a housing position. The bearing device is used to bearing-support the lifting arm device in a manner to be turnable with a turning shaft as the pivot. The turning shaft is arranged to be approximately in parallel with the rotating shaft of the interchange objective roller, and the turning shaft passes an intermediate range which is located in the vertical direction between the working position and the housing position of the interchangeable roller. COPYRIGHT: (C)2007,JPO&INPIT
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