PROBLEM TO BE SOLVED: To provide a rack guide which supports a rack bar that is engaged with a pinion pivoted on a gear case through a rack tooth so as to be movable in an axial direction and can sure a smooth sliding operation of the rack bar even when twisting of the rack bar unexpectedly occurs, and a rack-pinion type steering device provided with the rack guide.SOLUTION: A rack guide 6 has a recessed surface (sliding support surface) 61a which contacts slidably with a projecting surface 3b in an opposite side to a side on which a rack tooth 3a is formed in a rack bar 3 and has a recessed shape. In the recessed surface (sliding support surface) 61a, inclination surfaces 63 which gradually incline in a direction away from the rack bar 3 toward the end in the movement direction are formed on edge portions on both side ends in a direction orthogonal to the movement direction of the rack bar 3.SELECTED DRAWING: Figure 3
【課題】ギアケースに軸支されたピニオンとラック歯を介して噛合するラックバーを、軸心方向に移動可能に支持するラックガイドおよび当該ラックガイドを備えるラックピニオン式舵取り装置であって、たとえ不意にラックバーの拗れが発生した場合においても、ラックバーのスムーズな摺動動作を確保することが可能なラックガイドおよび当該ラックガイドを備えるラックピニオン式舵取り装置を提供する。【解決手段】ラックガイド6は、ラックバー3におけるラック歯3aが形成される側と反対側の凸面3bと、摺動可能に接触する凹面形状の凹面(摺動支持面)61aを有し、凹面(摺動支持面)61aにおいて、ラックバー3の移動方向との直交方向両側の縁部には、当該移動方向側の端部に向かうにつれて徐々にラックバー3と離間する方向に傾斜する傾斜面63が形成される。【選択図】図3
RACK GUIDE, AND RACK-PINION TYPE STEERING DEVICE PROVIDED WITH RACK GUIDE
ラックガイドおよび当該ラックガイドを備えるラックピニオン式舵取り装置
2016-04-28
Patent
Electronic Resource
Japanese
RACK GUIDE, AND RACK-PINION TYPE STEERING DEVICE PROVIDED WITH RACK GUIDE
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