STEERING DEVICE

PROBLEM TO BE SOLVED: To provide a steering device which suppresses the deterioration of durability resulting from abrasion powder between a rack and a pinion.SOLUTION: A pinion shaft 5 includes a first end 51 which protrudes from a pinion housing 3, and a second end 52 having an end face 52a which opposes a bottom 3b of the pinion housing 3. A pinion 5b of the pinion shaft 5 at an external peripheral face 5a is geared and engaged with a rack 4b of a rack shaft 4 in the pinion housing 3. A second end support mechanism 20 rotatably supports the second end 52 of the pinion shaft 5 by only the end face 52a of the second end 52. The second end support mechanism 20 includes a recess 21 which is formed at the end face 52a of the second end 52, and a protrusion 22 which is arranged at the bottom 3b of the pinion housing 3. The protrusion 22 is inserted into the recess 21, and indirectly slides with an internal face 21a of the recess 21 via a slide member 23.SELECTED DRAWING: Figure 2 【課題】ラックとピニオンとの摩耗粉に起因する耐久性の劣化を抑制するステアリング装置を提供する。【解決手段】ピニオン軸５が、ピニオンハウジング３から突出する第１端部５１と、ピニオンハウジング３の底部３ｂに対向する端面５２ａを有する第２端部５２とを含む。ピニオン軸５の外周面５ａのピニオン５ｂが、ピニオンハウジング３内でラック軸４のラック４ｂと噛み合い係合する。第２端部支持機構２０が、ピニオン軸５の第２端部５２を第２端部５２の端面５２ａのみで回転可能に支持する。第２端部支持機構２０は、第２端部５２の端面５２ａに形成された凹部２１と、ピニオンハウジング３の底部３ｂに設けられた凸部２２とを含む。凸部２２は、凹部２１に挿入され、凹部２１の内面２１ａと直接または摺動部材２３を介して間接的に摺動する。【選択図】図２