PROBLEM TO BE SOLVED: To provide a rotation-linear motion converting device for achieving relatively high quietness.SOLUTION: A rotation-linear motion converting device 20 includes a shaft 7 having a shank 30 whose outer peripheral face is cylindrically shaped, a housing 40 externally fitted to the shaft 7 across a gap, a plurality of rollers 50 fixed at its base end to the housing 40 and equally spaced from the shaft 7 in the peripheral direction, cover members 46, 48 externally fitted to the shaft 7 across gaps for covering areas on the axial front and rear sides of the housing 40, respectively, and packings 18 mounted between each of the cover members 46, 48 and the shank 30, respectively. The plurality of rollers 50 are supported on the housing 40 rotatably at the same inclination angle α to the axis of the shaft 7 in the torsional direction, and also put in slide contact with the shank 30 of the shaft 7 while applying a preload thereto to enable the transmission of traction driving force.SELECTED DRAWING: Figure 1
【課題】比較的に高い静粛性を得られる回転直動変換装置を提供する。【解決手段】この回転直動変換装置20は、外周面が円筒状の軸部30を有するシャフト7と、シャフト7に隙間を隔てて外嵌するハウジング40と、ハウジング40に基端部が固定されてシャフト7に対して周方向に離隔して等配された複数のローラ50と、シャフト7に隙間を隔てて外嵌するとともにハウジング40の軸方向前後を覆うカバー部材46、48と、これらカバー部材46、48と軸部30との間にそれぞれ介装されるパッキン18とを備える。複数のローラ50は、シャフト7の軸線に対して捩じれの方向に同一の傾き角度αをもって回転自在にハウジング40に支持され、さらに、シャフト7の軸部30に対してトラクション駆動力を伝達可能なように予圧荷重をかけた状態で摺接されている。【選択図】図1
ROTATION-LINEAR MOTION CONVERTING DEVICE, AND ELECTRIC POWER STEERING DEVICE, VEHICLE AND MACHINE DEVICE EQUIPPED THEREWITH
回転直動変換装置、これを備える電動パワーステアリング装置および車両並びに機械装置
2017-04-20
Patent
Electronic Resource
Japanese
European Patent Office | 2017
|European Patent Office | 2017
|European Patent Office | 2017
|European Patent Office | 2017
|European Patent Office | 2017
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