| 摘要 |
PROBLEM TO BE SOLVED: To improve durability by increasing the strength of a connecting part between a power tool and a chuck. SOLUTION: This connector part 31 of the chuck 28 has a hexagonal shaft part 32 inserted in an insertion hole 27 of an anvil 8, and an outer cylinder part 35 having a larger diameter than the hexagonal shaft 32 is projected backward co-axially with the hexagonal shaft part 32 on a connecting part 34 at the leading end. The outer cylinder part 35 is provided with a hexagonal hole 36 concentric with the hexagonal shaft part 32 and externally mounted at the tip of the anvil 8. A hexagonal outline part 37 fitted to the hexagonal hole 36 of the outer cylinder part 35 when the hexagonal shaft part 32 is inserted is formed in the tip of the anvil 8. In using the chuck 28, when the connector part 31 of the chuck 28 is inserted in the insertion hole 27 of the anvil 8, the outer cylinder part 35 and the outline part 37 of the anvil 8 are fitted to each other, the connector part 31 is firmly connected to the anvil 8 by fitting of the outer cylinder part 35 to the outline part 37 in the outside of a radial direction in addition to the fitting of the hexagonal shaft part 32 to the insertion hole 27. COPYRIGHT: (C)2005,JPO&NCIPI
|
