专利名称：STEERING SYSTEM发明人：OGATA, Toshiaki申请号：EP18210024.8申请日：20181204公开号：EP3495236A1公开日：20190612
专利附图：
摘要：There is provided a steering system that includes a ball screw device in whichball clearance reduction of rolling elements is not likely to occur in the case where thesteering angle of a steering wheel is in the neutral state. A steering system (10) includesa steered shaft (20), a ball screw device (40), a motor (M), and a drive force transfer
mechanism (32). The position of a housing (11) relative to the steered shaft (20) with avehicle in the straight travel state is defined as a steering neutral position (N) of thesteered shaft (20). A deflector passage (61) is formed such that respective end portions(61a and 62a) thereof, which are connected to a rolling path (Rl), are in a semiperimeterrange (Arl) of the inner peripheral surface of a rolling element nut (21) with the steeredshaft (20) at the steering neutral position (N). The range (Arl) is formed to extend to aphase of 90° on both sides in the circumferential direction of the inner peripheral surfacefrom a crossing line (LI) that is the farther from a drive pulley (36), of crossing linesformed with a virtual plane (Q) that includes respective rotational axes (C1 and C2) of adriven pulley (34) and the drive pulley (36) intersecting the rolling element nut (21).
申请人：JTEKT CORPORATION
地址：5-8, Minamisemba 3-chome, Chuo-ku, Osaka-shi, Osaka 542-8502 JP
国籍：JP
代理机构：Winter, Brandl, Fürniss, Hübner, Röss, Kaiser, Polte - Partnerschaft mbB
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