| 摘要 |
PROBLEM TO BE SOLVED: To provide a ratchet screwdriver, of which structure has little error, and which is easy to manufacture. SOLUTION: The first body of the ratchet screwdriver is provided with a storage part through which the first body goes in the horizontal direction. When the storage part is manufactured, the storage part can be formed by straddling inside the female type hole using the long core of the male type. Since the storage part goes through the first body, the both ends of the core can be fixed on a mold, positioned securely and firmly in the hole, and causes no bias or motion. Thereby, the storage part of the first body causes no error in manufacturing and needs no secondary machining. COPYRIGHT: (C)2008,JPO&INPIT
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