| 摘要 |
PURPOSE:To make fastening force to a grindstone uniform by setting a point of force of flange to an intermediate ring placed between each end of grindstone and flange of an abrasive wheel in almost the center of the contact length of the intermediate ring with the grindstone. CONSTITUTION:Even when flanges 1a, 1c are bent by elastic deformation as shown in an arrow A, intermediate rings 5, 5' come in contact with grindstone 2. By setting a point of force of flanges 1a, 1c in almost the center of the contact length of intermediate ring with the grindstone, the fastening force C of the intermediate rings 5, 5' to the grindstone 2 is made uniform. Therefore, the grindstone 2 and an abrasive wheel 1 are steadily fastened.
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