| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that, in an air chuck for a machine tool feeding and exhausting air to/from an air feeding/exhausting path of a chuck body through a through-hole provided at an adjusting packing, the length of a chuck in the rotational axial direction becomes long when the number of feed circuits of a pressure medium fed to the chuck is two or more.SOLUTION: A ring groove containing an adjusting packing is composed of: an air groove continuously connected to each feeding/exhausting path of a plurality of feeding/exhausting paths and holding air; and a partitioning part forming a protruded part and in contact with the adjusting packing in which the partitioning part separates air in adjacent air grooves. |
