DAMPER DEVICE

PROBLEM TO BE SOLVED: To provide a damper device of light weight, reduced in the number of components, and having a good characteristic.SOLUTION: A spiral spring 21 is formed into the spiral shape wound along a fiber direction while using a carbon fiber-reinforced plastic as a material, an inner per...

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Bibliographische Detailangaben
Hauptverfasser: KONDO MASAHIRO, TAKABAYASHI SUNAO, MAENO KATSUHIRO
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a damper device of light weight, reduced in the number of components, and having a good characteristic.SOLUTION: A spiral spring 21 is formed into the spiral shape wound along a fiber direction while using a carbon fiber-reinforced plastic as a material, an inner peripheral end of the spiral spring 21 is connected to a crank shaft 1 of an engine through an inner holder 22 (input element), and an outer peripheral end of the spiral spring 21 is connected to a front cover 31 (set block 60) through an outer holder 24 (output element). Further the spiral spring 21 is attached so that its winding direction is agreed with a rotating direction of the engine. Thus a large torsion angle can be obtained while securing high strength by utilizing low rigidity and high tensile strength of the carbon fiber-reinforced plastic.SELECTED DRAWING: Figure 1 【課題】部品点数が少なく、軽量で且つ良好な特性をもつダンパ装置を提供する。【解決手段】渦巻きバネ21を、炭素繊維強化プラスチックを材料として繊維方向に沿って巻かれる渦巻き状に形成し、渦巻きバネ21の内周端を、インナホルダ22(入力要素)を介してエンジンのクランクシャフト1に連結し、渦巻きバネ21の外周端を、アウタホルダ24(出力要素)を介してフロントカバー31(セットブロック60)に連結する。また、渦巻きバネ21を、エンジンの回転方向と巻き込み方向とが一致するように取り付ける。これにより、炭素繊維強化プラスチックの低剛性で優れた引張強度を利用し、高い強度を確保しつつ、大きなねじれ角を得ることができる。【選択図】図1