| 摘要 |
PURPOSE:To shorten the length of a crankshaft, to simplify the structure and to facilitate the assembly of a damper by a method wherein the length of the crankshaft is made shorter than the entire width of the damper and both side ends of the damper are supported by the crankshaft so as to stop the rotation of the damper. CONSTITUTION:The length of a crankshaft 1 is made to be one-third of that of a damper 2. Further, the damper 2 is made of a sheet metal and a top end shaft 3a at one end of the crankshaft 1 is bent continuously by rolling so as to become an integral part of a main shaft 3 of the damper 2. A groove 1a in the crankshaft 1 is fitted with a rolled bent section 3b of the main shaft 3 and is held stationary due to the resiliency of the sheet metal damper. Thus it is possible to attain a desired purpose by merely inserting the crankshaft into the main shaft. |
