发明授权
US07553249B2 Speed reducer, production method for speed reducer, roller bearing, crankshaft and production method for crank shaft
失效
减速机，减速机生产方法，滚子轴承，曲轴及曲轴的生产方法
- 专利标题： Speed reducer, production method for speed reducer, roller bearing, crankshaft and production method for crank shaft
- 专利标题（中）： 减速机，减速机生产方法，滚子轴承，曲轴及曲轴的生产方法
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申请号： US11526518申请日： 2006-09-25
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公开(公告)号： US07553249B2公开(公告)日： 2009-06-30
- 发明人: Osamu Nohara
- 申请人： Osamu Nohara
- 申请人地址： JP
- 专利权人： Nabtesco Corporation
- 当前专利权人： Nabtesco Corporation
- 当前专利权人地址： JP
- 代理商 Gerald E. Hespos; Anthony J. Casella
- 优先权： JP2005-278527 20050926; JP2005-353269 20051207; JP2006-055926 20060302
- 主分类号： F16H3/70
- IPC分类号： F16H3/70
摘要：
A speed reducer has a crankshaft to be rotated in conjunction with a drive unit. First through third eccentric portions are provided on the crankshaft. First through third externally-toothed gears are adapted to be moved respectively in conjunction with the first through third eccentric portions. Pin teeth are disposed along an inner periphery of a case to allow each of the first, second and third externally-toothed gears to be in meshing engagement therewith. An output shaft unit is adapted to be rotated in conjunction with the first, second and third externally-toothed gears. The first, second and third eccentric portions are arranged with a given phase difference in a rotation direction of the crankshaft with respect to each other. Each of the first, second and third externally-toothed gears is in meshing engagement with less than half of the plurality of pin teeth.
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