发明名称 |
Worm gear mechanism and electric power steering apparatus including the same |
摘要 |
A worm gear mechanism includes a worm, a torque-transmitting worm wheel meshing with the worm, and an auxiliary worm wheel disposed concentrically with the torque-transmitting worm wheel. The auxiliary worm wheel has a pitch circle diameter set to be greater than a pitch circle diameter of the torque-transmitting worm wheel and hence meshes with the worm in a meshing phase different from that of the torque-transmitting worm wheel. A screw thread provided on the worm actually meshes with teeth of the torque-transmitting worm wheel along a length defined as an actual meshing length. The screw thread has an effective length reduced to be approximately equal to the actual meshing length. |
申请公布号 |
GB2413372(B) |
申请公布日期 |
2006.07.19 |
申请号 |
GB20050008064 |
申请日期 |
2005.04.21 |
申请人 |
HONDA MOTOR CO.,LTD |
发明人 |
YASUO SHIMIZU;KATSUJI WATANABE |
分类号 |
F16H55/24;B62D5/04;B62D6/00;F16H1/16 |
主分类号 |
F16H55/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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