TORSIONAL DAMPER
To reduce radiation sound due to resonance of a vibration ring.SOLUTION: A torsional damper 101 has a boss 112 fixed to a rotary shaft such as a crank shaft 12 of an engine 11 (apparatus) for example, and is equipped with a hub 111 integrally provided with the boss 112 and an annular rim 114 through...
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Main Authors | , |
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Format | Patent |
Language | English Japanese |
Published |
07.05.2024
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Subjects | |
Online Access | Get full text |
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Summary: | To reduce radiation sound due to resonance of a vibration ring.SOLUTION: A torsional damper 101 has a boss 112 fixed to a rotary shaft such as a crank shaft 12 of an engine 11 (apparatus) for example, and is equipped with a hub 111 integrally provided with the boss 112 and an annular rim 114 through a stay 113. An annular vibration ring 131 is coupled to an outer peripheral surface of the rim 114 through an elastic body 121. The vibration ring 131 is provided with a cylindrical body 133 so as to project out in an axial direction at a position opposite to the engine 11. The cylindrical body 133 is provided with a flange 132 that extends in a direction decreasing a diameter and covers the hub 111 without contacting. The flange 132 has an opening portion 136 at a center part thereof. The vibration ring 131, the cylindrical body 133, and the flange 132 are integrally provided, and are coaxially disposed with an axis X of the crank shaft 12.SELECTED DRAWING: Figure 1
【課題】振動リングの共振による放射音の低減を図ること。【解決手段】トーショナルダンパ101は、例えばエンジン11(機器)のクランクシャフト12などの回転軸に固定されるボス112を有し、ボス112と円環状のリム114とをステー113を介して一体に設けたハブ111を備え、リム114の外周面に弾性体121を介して円環状の振動リング131を連結している。振動リング131には、エンジン11と反対側の位置で軸方向に突出するように筒状体133が設けられている。筒状体133には、径を縮小する方向に延び、ハブ111を非接触状態で覆うフランジ132が設けられている。フランジ132は、その中心部分に開口部136を有している。振動リング131、筒状体133、及びフランジ132は一体に設けられ、クランクシャフト12の軸Xと同心に配置されている。【選択図】図1 |
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Bibliography: | Application Number: JP20220168397 |