STEERING COLUMN DEVICE

• Main Authors: SAKAMOTO MASATOSHI, ITO TADAO
• Format: Patent
• Language: English; Japanese
• Published: 18.02.2021
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; LIGHTING; MECHANICAL ENGINEERING; MOTOR VEHICLES; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRAILERS; TRANSPORTING; WEAPONS

To provide a steering column device configured so that rattling of a screwed part between a male screw shaft member and a female screw member can be suppressed with a simpler configuration.SOLUTION: The steering column device comprises a screw shaft 13 that is rotatably supported on an outer column and a driving member 15, provided in an inner column, to which the screw shaft 13 is screwed. When the screw shaft 13 is rotated, the driving member 15 moves back and forth with respect to the screw shaft 13 and the inner column moves back and forth with respect to the outer column. The driving member 15 has: a first female screw part 29 formed at one end part 33 side in a center axis line direction of a screw hole; a second female screw part 31 formed at the other end part 35 side; and a screw relief part 27 formed between the first female part 29 and the second female part 31. The screw shaft 13 is not screwed to the screw relief part 27. Phases of a female screw of the first female screw part 29 and of a female screw of the second female screw part 31 are deviated from each other.SELECTED DRAWING: Figure 7 【課題】より簡素な構成で、雄ねじ軸部材と雌ねじ部材との螺合部分のガタつきを抑えることができるステアリングコラム装置を提供する。【解決手段】アウタコラムに回転自在に支持されるねじ軸１３と、インナコラムに設けられ、ねじ軸１３が螺合する駆動部材１５とを備える。ねじ軸１３の回転により、駆動部材１５がねじ軸１３に対して前後に移動し、インナコラムがアウタコラムに対して前後に移動する。駆動部材１５は、ねじ孔の中心軸線方向の一方の端部３３側に形成される第１の雌ねじ部２９と、他方の端部３５側に形成される第２の雌ねじ部３１と、第１の雌ねじ部２９と第２の雌ねじ部３１との間に形成されるねじ逃げ部２７と、を有する。ねじ逃げ部２７には、ねじ軸１３が螺合しない。第１の雌ねじ部２９の雌ねじと第２の雌ねじ部３１の雌ねじとは、互いに位相がずれている。【選択図】図７