| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for tubes, having no risk of failure when used as a component of a tool. SOLUTION: The structure in a tube (10) for engine drive potable tools has a drive shaft (12) pivoted by a bearing (11) set in the tube (10). The bearing (11) has a pipe block (13) surrounded with at least three planes (14) projecting outward from the pipe block (13). To prevent rotation of the bearing (11) in the tube (10), at least one projected flange (15) contacting with the outer end of one of the plate (14) is set inside the tube (10). COPYRIGHT: (C)2004,JPO
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