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1. 发明申请

US20070193820A1 Electric power steering apparatus 有权
标题翻译：电动助力转向装置
公开(公告)号：US20070193820A1
公开(公告)日：2007-08-23
申请号：US11656494
申请日：2007-01-23
申请人： Yuuji Shimamoto , Keizo Arita , Kouji Kitahata , Naoki Uchida
发明人： Yuuji Shimamoto , Keizo Arita , Kouji Kitahata , Naoki Uchida
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16H57/0427 , F16H57/0463 , F16H57/0498
摘要： An electric power steering apparatus is provided with a worm which is a driving gear interlocked with an electric motor for assisting steering, and a worm wheel which is a driven gear having an annular teeth body made of synthetic resin meshing with the worm and a metallic core body coupling the annular teeth body and is attached to the steering shaft. Protrusions are provided on a side surface of the annular teeth body in a face width direction at a plurality of circumferential positions from which a distance to a center of rotation is different from each other, and stirred lubricating fats and oils applied around the worm wheel. As a result, the lubricating fats and oils can be moved to between tooth surfaces of a meshing portion between the worm and worm wheel.
摘要翻译：电动助力转向装置设有蜗杆，蜗杆是与用于辅助转向的电动机联锁的驱动齿轮，以及作为从动齿轮的蜗轮，该蜗轮具有由与蜗杆啮合的合成树脂制的环形齿体和金属芯主体联接环形齿体并附接到转向轴。在环形齿体的侧表面上，在多个圆周位置，在旋转中心距离不同的多个圆周位置处，在环形齿体的侧面上设置突起，并且在蜗轮周围搅拌润滑的脂肪和油。结果，润滑脂肪和油可以移动到蜗杆和蜗轮之间的啮合部分的齿面之间。

2. 发明授权

US07591341B2 Noise reduction electric power steering apparatus 有权
标题翻译：降噪电动助力转向装置
公开(公告)号：US07591341B2
公开(公告)日：2009-09-22
申请号：US11656494
申请日：2007-01-23
申请人： Yuuji Shimamoto , Keizo Arita , Kouji Kitahata , Naoki Uchida
发明人： Yuuji Shimamoto , Keizo Arita , Kouji Kitahata , Naoki Uchida
IPC分类号： B62D5/04
CPC分类号： B62D5/0409 , F16H57/0427 , F16H57/0463 , F16H57/0498
摘要： An electric power steering apparatus is provided with a worm which is a driving gear interlocked with an electric motor for assisting steering, and a worm wheel which is a driven gear having an annular teeth body made of synthetic resin meshing with the worm and a metallic core body coupling the annular teeth body and is attached to the steering shaft. Protrusions are provided on a side surface of the annular teeth body in a face width direction at a plurality of circumferential positions from which a distance to a center of rotation is different from each other, and stirred lubricating fats and oils applied around the worm wheel. As a result, the lubricating fats and oils can be moved to between tooth surfaces of a meshing portion between the worm and worm wheel.
摘要翻译：电动助力转向装置设有蜗杆，蜗杆是与用于辅助转向的电动机联锁的驱动齿轮，以及作为从动齿轮的蜗轮，该蜗轮具有由与蜗杆啮合的合成树脂制的环形齿体和金属芯主体联接环形齿体并附接到转向轴。在环形齿体的侧表面上，在多个圆周位置，在旋转中心距离不同的多个圆周位置处，在环形齿体的侧面上设置突起，并且在蜗轮周围搅拌润滑的脂肪和油。结果，润滑脂肪和油可以移动到蜗杆和蜗轮之间的啮合部分的齿面之间。

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