发明名称 REDUCTION GEAR MECHANISM FOR MOTOR-DRIVEN POWER STEERING
摘要 <p>PROBLEM TO BE SOLVED: To provide reduction gear mechanism using a worm wheel made of resin, reducing cost by a large margin while ensuring sufficient gear accuracy. SOLUTION: In reduction gear mechanism for a motor-driven power steering constituted in such a way as to transmit the output of an electric motor to an output shaft 104 through reduction gear mechanism 107, 109 to assist steering force, the reduction gear mechanism is composed of a metallic worm 109 and a worm wheel 107 meshed with the worm 109. At least the tooth part, meshed with the worm 109, of the worm wheel 107 is formed of resin, and this tooth part assumes the shape of a spur gear with the tooth trace formed in straight lines parallel with the axis of the worm wheel 107. In addition, an expressionΣ=90 deg.-γ0 is materialized when the crossing angle of the axis of the worm and the axis of the worm wheel isΣand the advance angle of the worm isγ0 .</p>
申请公布号 JPH0924855(A) 申请公布日期 1997.01.28
申请号 JP19950178888 申请日期 1995.07.14
申请人 NIPPON SEIKO KK 发明人 IWANO TOSHIYUKI
分类号 B62D6/02;F16H1/16;(IPC1-7):B62D6/02 主分类号 B62D6/02
代理机构 代理人
主权项
地址