| 摘要 |
PURPOSE: A power transmission apparatus is provided to prevent defects generated in assembly by exactly controlling the concentricity between both shafts. CONSTITUTION: A power transmission apparatus comprises a drive member, a driven member, a connecting member, and a connecting groove and a connecting protrusion. A drive member(10) is formed in a drive shaft(12) of an actuator. The driven member(20) is equipped in a driven shaft(22) of a valve to be rotated by the driving force delivered from the drive member. The connecting member(30) is interposed between the drive member and the driven member and delivers the driving force delivered from the drive member to the driven member. The connecting groove(40) and the connecting protrusion(42) are arranged in X-axis and Y axis directions to be connected to the drive member, the driven member, and the connecting member.
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