| 摘要 |
<p>A hand-held rotary tool is provided which can offer improved usability while realizing reduction of vibration of a tool body.</p><p><Paragraphs id="pa02" num="0002" xmlns:base="http://www.sipo.gov.cn/XMLSchema/base">The rotary tool has a tool body 103, a drive shaft 112 disposed in the tool body, a driven shaft 121 to which a tool bit 125 is attached, an Oldham's coupling 123 that transmits rotation of the drive shaft 112 to the driven shaft 121, and an elastic element 141 disposed between the driven shaft 121 and the tool body 103. The driven shaft 121 is prevented from moving in a longitudinal direction of the driven shaft 121 relative to the tool body 103 and allowed to move in a direction transverse to the longitudinal direction of the driven shaft 121 relative to the tool body 103. During this relative movement, power transmission from the drive shaft 112 to the driven shaft 121 is maintained via the Oldham's coupling 123. The elastic element 141 absorbs the movement of the driven shaft 121 relative to the tool body 103.
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