| 摘要 |
PROBLEM TO BE SOLVED: To provide a driver chuck, quickly mounting a driver head only by one-handed operation or demounting the same. SOLUTION: This driver chuck is so constructed that one set elastic assembly 70 is newly set in an insert hole of a driver head connecting end of the driver chuck. The elastic assembly 70 includes: one push receiving bed 71; one elastic body 63; and one position limit part 73, wherein the position limit part is fixed in the insert hole, and the elastic body is installed between the push receiving bed and the position limit part. When the push receiving bed is pressed toward the outside of the insert hole, and the push receiving bed is in a state of being pressed to the outside up to the dead center position by the elastic body, the peripheral wall presses a positioning ball set at the driver head connecting end outward, and the push receiving bed has a hole vessel inside, in which the driver head can be inserted. By the above structure, the driver head can be quickly mounted or demounted only by one-handed operation. COPYRIGHT: (C)2007,JPO&INPIT
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