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1. 发明申请

US20140041194A1 TELESCOPIC SHAFT AND MANUFACTURING METHOD THEREOF 有权
标题翻译： TELESCOPIC轴及其制造方法
公开(公告)号：US20140041194A1
公开(公告)日：2014-02-13
申请号：US14009980
申请日：2012-06-25
申请人： Yoshifumi Kurokawa , Shin Mihara , Hiroyuki Hattori , Takuma Nakamura , Sho Inaki , Seiichi Moriyama , Yoshio Nakano
发明人： Yoshifumi Kurokawa , Shin Mihara , Hiroyuki Hattori , Takuma Nakamura , Sho Inaki , Seiichi Moriyama , Yoshio Nakano
IPC分类号： B62D1/185 , F16C33/20 , F16C3/03
CPC分类号： B62D1/185 , B62D1/16 , B62D1/20 , F16C3/03 , F16C33/208 , F16C2231/00 , F16C2326/24 , F16D3/06 , F16D2001/102 , F16D2001/103 , F16D2250/0023 , F16D2300/10 , Y10T29/4984
摘要： Provided is a telescopic shaft having a coated section that reduces sliding resistance, with fluctuation of the sliding resistance according to sliding position of the telescopic shaft being reduced. A female shaft 16B is fitted onto a male shaft in a state of interference, and by causing the male shaft 16A to slide back-and-forth a specified number of times in the axial direction with respect to the female shaft 16B while applying, for example, a load in a direction that bends the male shaft 16A with respect to the female shaft 16B, friction heat is generated between side surfaces 411 of grooves 41 in the female shaft 16B and the coated section 61, which heats the coated section 61 and causes the coated section 61 to expand along the entire length in the axial direction of teeth 51 of the male shaft 16A. Therefore, the coated section 61 plastically deforms along the entire length in the axial direction of the teeth causing compressive strain to occur. By causing the male shaft 16A to slide back-and-forth with respect to the female shaft 16B in this state, the grooves 41 of the female shaft 16B and the teeth 51 of the male shaft 16A are uniformly in contact along the entire length in the axial direction, and thus sliding friction becomes constant along the entire length of the sliding range.
摘要翻译：本发明提供一种伸缩轴，其具有能够减小滑动阻力的涂布部，随着伸缩轴的滑动位置的滑动阻力的变动减小。母轴16B以干涉状态装配到阳轴上，并且通过使凸型轴16A相对于母轴16B在轴向上来回滑动指定次数，同时施加，用于例如，在使阳轴16A相对于阴轴16B弯曲的方向上的负载，在母轴16B中的凹槽41的侧表面411和涂覆部分61之间产生摩擦热，涂覆部分61加热涂覆部分61和使得涂覆部分61沿着阳轴16A的齿51的轴向方向上的整个长度膨胀。因此，涂布部61沿着轴的轴向的整个长度塑性变形，从而产生压缩应变。在这种状态下，通过使阳轴16A相对于阴轴16B前后滑动，母轴16B的凹槽41和阳轴16A的齿51沿着整个长度均匀地接触轴向，因此滑动摩擦沿滑动范围的整个长度变得恒定。

2. 发明授权

US09446782B2 Telescopic shaft and manufacturing method thereof 有权
标题翻译：伸缩轴及其制造方法
公开(公告)号：US09446782B2
公开(公告)日：2016-09-20
申请号：US14009980
申请日：2012-06-25
申请人： Yoshifumi Kurokawa , Shin Mihara , Hiroyuki Hattori , Takuma Nakamura , Sho Inaki , Seiichi Moriyama , Yoshio Nakano
发明人： Yoshifumi Kurokawa , Shin Mihara , Hiroyuki Hattori , Takuma Nakamura , Sho Inaki , Seiichi Moriyama , Yoshio Nakano
IPC分类号： B62D1/185 , F16D3/06 , F16C3/03 , F16C33/20 , F16D1/10
CPC分类号： B62D1/185 , B62D1/16 , B62D1/20 , F16C3/03 , F16C33/208 , F16C2231/00 , F16C2326/24 , F16D3/06 , F16D2001/102 , F16D2001/103 , F16D2250/0023 , F16D2300/10 , Y10T29/4984
摘要： Provided is a telescopic shaft having a coated section that reduces sliding resistance, with fluctuation of the sliding resistance according to sliding position of the telescopic shaft being reduced. A female shaft 16B is fitted onto a male shaft in a state of interference, and by causing the male shaft 16A to slide back-and-forth a specified number of times in the axial direction with respect to the female shaft 16B while applying, for example, a load in a direction that bends the male shaft 16A with respect to the female shaft 16B, friction heat is generated between side surfaces 411 of grooves 41 in the female shaft 16B and the coated section 61, which heats the coated section 61 and causes the coated section 61 to expand along the entire length in the axial direction of teeth 51 of the male shaft 16A. Therefore, the coated section 61 plastically deforms along the entire length in the axial direction of the teeth causing compressive strain to occur. By causing the male shaft 16A to slide back-and-forth with respect to the female shaft 16B in this state, the grooves 41 of the female shaft 16B and the teeth 51 of the male shaft 16A are uniformly in contact along the entire length in the axial direction, and thus sliding friction becomes constant along the entire length of the sliding range.
摘要翻译：本发明提供一种伸缩轴，其具有能够减小滑动阻力的涂布部，随着伸缩轴的滑动位置的滑动阻力的变动减小。母轴16B以干涉状态装配到阳轴上，并且通过使凸型轴16A相对于母轴16B在轴向上来回滑动指定次数，同时施加，用于例如，在使阳轴16A相对于阴轴16B弯曲的方向上的负载，在母轴16B中的凹槽41的侧表面411和涂覆部分61之间产生摩擦热，涂覆部分61加热涂覆部分61和使得涂覆部分61沿着阳轴16A的齿51的轴向方向上的整个长度膨胀。因此，涂布部61沿着轴的轴向的整个长度塑性变形，从而产生压缩应变。在这种状态下，通过使阳轴16A相对于阴轴16B前后滑动，母轴16B的凹槽41和阳轴16A的齿51沿着整个长度均匀地接触轴向，因此滑动摩擦沿滑动范围的整个长度变得恒定。

3. 发明授权

US07559266B2 Telescopic shaft 失效
标题翻译：伸缩轴
公开(公告)号：US07559266B2
公开(公告)日：2009-07-14
申请号：US11769396
申请日：2007-06-27
申请人： Yoshifumi Kurokawa
发明人： Yoshifumi Kurokawa
IPC分类号： B62D1/16
CPC分类号： B62D1/185 , B62D1/192 , F16C3/03 , F16C2326/24 , F16D3/06 , Y10T403/7026
摘要： This invention provides a telescopic shaft in which a backlash or a sliding resistance in a rotational direction is maintained to a predetermined value even when there are fabrication errors in a male shaft and a female shaft, and a preload is not reduced even when a sleeve is worn by a friction force in sliding, and a steering apparatus having the telescopic shaft. An inclined sleeve portion 712 is pressed by an elastic deformation of an urge sleeve portion 713, so that there is not backlash between a male shaft 12B and a female shaft 12A and a predetermined preload is applied. Although an outer periphery of the inclined sleeve portion 712 is worn by a friction in sliding, the inclined sleeve portion 712 is further pressed by an elastic force of the urge sleeve portion 713 by an amount of wearing the outer periphery of the inclined sleeve portion 712. Thus, a predetermined urge force is always operated to the inclined sleeve portion 71.
摘要翻译：本发明提供了一种伸缩轴，其中即使在阳轴和母轴中存在制造误差，其中齿隙或旋转方向上的滑动阻力也保持在预定值，并且即使套筒是由滑动中的摩擦力磨损，以及具有伸缩轴的转向装置。倾斜套筒部分712被推动套筒部分713的弹性变形压紧，使得在阳轴12B和阴轴12A之间不存在齿隙并施加预定的预载荷。虽然倾斜套筒部分712的外周由于滑动摩擦而磨损，但是倾斜套筒部分712被推动套筒部分713的弹力进一步压紧一定数量的倾斜套筒部分712的外围因此，预定的推动力总是对倾斜的套筒部分71进行操作。

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