| 摘要 |
PROBLEM TO BE SOLVED: To provide a connection structure of a bit connector which enables a user to mount/dismount a bit connector to/from a hexagonal driver bit of an electric rotating tool, with one stroke operation in the same direction in either case.SOLUTION: The bit connector consists of a cylindrical body 11 and an operating cylinder 15 fitted over its root side. A through-hole 14 is provided radially on the root side of a bit receiving hole 18 of the cylindrical body 11, and a ball 13 for a stopper is equipped in the through-hole 14. Two annular recesses 16 and 17 corresponding to the steel ball 13 are provided on the inner wall surface of the operating cylinder 15. Coil springs 18 and 19 are provided on both front end and base end sides of the operating cylinder 15. When the operating cylinder 15 is moved toward the base end side, the annular recess 16 on the front end side is aligned with the through-hole 14 to allow a driver bit 50 to be inserted, and when the operating cylinder 15 is moved toward the front end side, the annular recess 17 on the base end side is aligned with the through-hole 14 to allow the driver bit 50 to be pulled out. |
