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1. 发明授权

US08272289B2 Roller screw 有权
标题翻译：滚筒螺丝
公开(公告)号：US08272289B2
公开(公告)日：2012-09-25
申请号：US11662095
申请日：2005-09-07
申请人： Akihiro Teramachi , Hidekazu Michioka , Hiroshi Niwa , Akimasa Yoshida
发明人： Akihiro Teramachi , Hidekazu Michioka , Hiroshi Niwa , Akimasa Yoshida
IPC分类号： F16H1/24 , F16H55/02
CPC分类号： F16H25/2247 , F16H25/2214 , F16H2025/2271 , Y10T74/19744 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： A roller screw is provided having a structure suitable for circulating rollers. The roller screw has a screw shaft 5 with a spiral roller rolling groove 5a formed on an outer peripheral surface thereof; a nut 6 with a spiral roller rolling groove 6a opposed to the roller rolling groove of the screw shaft and formed on an inner peripheral surface thereof; and a plurality of rollers 7 arranged in a load roller rolling path 9 between the roller rolling groove 5a of the screw shaft 5 and the roller rolling groove 6a of the nut 6. Inside the nut 6 is provided a roller return path 11 extending linearly in parallel with an axis line of the nut 6. To opposite end faces in an axis line direction of the nut 6 are attached direction change path forming members 13 in which direction change paths 10 to connect the load roller rolling path 9 and the roller return path 11 are formed. The roller return path 11 is twisted to rotate an attitude of each of the rollers 7 while the rollers 7 move in the roller return path 11.
摘要翻译：提供具有适于循环辊的结构的滚柱螺杆。滚子丝杠具有在其外周面上形成有螺旋滚子滚动槽5a的螺杆轴5; 螺母6，其具有与螺旋轴的滚子滚动槽相对并形成在其内周面上的螺旋滚子滚动槽6a; 以及设置在螺杆轴5的滚子滚动槽5a与螺母6的滚子滚动槽6a之间的加载滚筒滚动路径9中的多个滚子7.在螺母6的内部设置有一个滚轮返回通道11，平行于螺母6的轴线。在螺母6的轴线方向上的相对端面上安装有方向改变路径形成构件13，方向改变路径10连接负载辊滚动路径9和辊返回路径形成11。当辊7在辊返回路径11中移动时，辊返回路径11被扭转以使每个辊7的姿态旋转。

2. 发明申请

US20080245170A1 Roller Screw 有权
标题翻译：滚筒螺丝
公开(公告)号：US20080245170A1
公开(公告)日：2008-10-09
申请号：US11662095
申请日：2005-09-07
申请人： Akihiro Teramachi , Hidekazu Michioka , Hiroshi Niwa , Akimasa Yoshida
发明人： Akihiro Teramachi , Hidekazu Michioka , Hiroshi Niwa , Akimasa Yoshida
IPC分类号： F16H1/24
CPC分类号： F16H25/2247 , F16H25/2214 , F16H2025/2271 , Y10T74/19744 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： A roller screw is provided having a structure suitable for circulating rollers. The roller screw has a screw shaft 5 with a spiral roller rolling groove 5a formed on an outer peripheral surface thereof; a nut 6 with a spiral roller rolling groove 6a opposed to the roller rolling groove of the screw shaft and formed on an inner peripheral surface thereof; and a plurality of rollers 7 arranged in a load roller rolling path 9 between the roller rolling groove 5a of the screw shaft 5 and the roller rolling groove 6a of the nut 6. Inside the nut 6 is provided a roller return path 11 extending linearly in parallel with an axis line of the nut 6. To opposite end faces in an axis line direction of the nut 6 are attached direction change path forming members 13 in which direction change paths 10 to connect the load roller rolling path 9 and the roller return path 11 are formed. The roller return path 11 is twisted to rotate an attitude of each of the rollers 7 while the rollers 7 move in the roller return path 11.
摘要翻译：提供具有适于循环辊的结构的滚柱螺杆。滚子丝杠具有螺旋轴5，螺杆轴5在其外周面上形成有螺旋滚子滚动槽5a; 螺母6，其具有与螺旋轴的滚子滚动槽相对并形成在其内周面上的螺旋滚子滚动槽6a; 以及设置在螺杆轴5的滚子滚动槽5a和螺母6的滚子滚动槽6a之间的加载滚筒滚动路径9中的多个滚子7。在螺母6内设置有与螺母6的轴线平行延伸的辊返回路径11。在螺母6的轴线方向的相对端面上安装有形成用于连接负载辊滚动路径9和滚子返回路径11的方向变换路径10的方向变换路径形成构件13。当辊7在辊返回路径11中移动时，辊返回路径11被扭转以使每个辊7的姿态旋转。

3. 发明授权

US07950304B2 Roller screw 有权
标题翻译：滚筒螺丝
公开(公告)号：US07950304B2
公开(公告)日：2011-05-31
申请号：US11908210
申请日：2006-03-02
申请人： Hidekazu Michioka , Makoto Iizumi , Satoshi Fujita , Akimasa Yoshida
发明人： Hidekazu Michioka , Makoto Iizumi , Satoshi Fujita , Akimasa Yoshida
IPC分类号： F16H1/24 , F16H55/02
CPC分类号： F16H25/2247 , F16H2025/2271 , Y10T74/19744 , Y10T74/19791
摘要： A roller screw of the present invention has a screw shaft 1 having a roller rolling surface 1a spirally formed with a lead on an outer surface thereof; a nut 2 having a roller rolling surface 2a spirally formed on an inner surface thereof to face the roller rolling surface 1a of the screw shaft 1; and a plurality of rollers 4 arranged in a rolling path 3 between the roller rolling surface 1a of the screw shaft 1 and the roller rolling surface 2a of the nut 2 and moving around the screw shaft while rotating on rotation axes of the rollers. In this roller screw, each of the rotation axes 4a of the rollers 4 substantially crosses a center line 1b of the screw shaft 1. Since each of the rotation axes 4a of the rollers 4 crosses the center line 1b of the screw shaft 1 (in other words, the rollers 4 arranged in the rolling path 3 are not skewed from the beginning) even when the rolling path 3 has the lead, the roller 4 are allowed to move smoothly.
摘要翻译：本发明的滚珠丝杠具有螺杆轴1，该螺杆轴1具有在其外表面上螺旋地形成有引线的滚子滚动表面1a; 螺母2，其具有螺旋形地形成在其内表面上的滚子滚动表面2a，以面对螺杆轴1的滚子滚动表面1a; 以及多个辊4，其布置在螺杆轴1的滚子滚动表面1a和螺母2的滚子滚动表面2a之间的滚动路径3中，并且在滚子的旋转轴线上旋转的同时沿着螺杆轴移动。在该滚子丝杠中，滚子4的旋转轴线4a基本上与螺杆轴1的中心线1b交叉。由于滚子4的旋转轴线4a与丝杠轴1的中心线1b相交换句话说，即使滚动路径3具有引导，滚动路径3中布置的滚子4也不会从头开始偏斜），所以允许滚筒4平稳地移动。

4. 发明申请

US20090249912A1 ROLLER SCREW 有权
标题翻译：滚轮螺丝
公开(公告)号：US20090249912A1
公开(公告)日：2009-10-08
申请号：US11908210
申请日：2006-03-02
申请人： Hidekazu Michioka , Makoto Iizumi , Satoshi Fujita , Akimasa Yoshida
发明人： Hidekazu Michioka , Makoto Iizumi , Satoshi Fujita , Akimasa Yoshida
IPC分类号： F16H25/22
CPC分类号： F16H25/2247 , F16H2025/2271 , Y10T74/19744 , Y10T74/19791
摘要： The present invention provides a roller screw capable of circulating rollers smoothly.A roller screw of the present invention has a screw shaft 1 having a roller rolling surface 1a spirally formed with a lead on an outer surface thereof; a nut 2 having a roller rolling surface 2a spirally formed on an inner surface thereof to face the roller rolling surface 1a of the screw shaft 1; and a plurality of rollers 4 arranged in a rolling path 3 between the roller rolling surface 1a of the screw shaft 1 and the roller rolling surface 2a of the nut 2 and moving around the screw shaft while rotating on rotation axes of the rollers. In this roller screw, each of the rotation axes 4a of the rollers 4 substantially crosses a center line 1b of the screw shaft 1. Since each of the rotation axes 4a of the rollers 4 crosses the center line 1b of the screw shaft 1 (in other words, the rollers 4 arranged in the rolling path 3 are not skewed from the beginning) even when the rolling path 3 has the lead, the roller 4 are allowed to move smoothly.
摘要翻译：本发明提供一种能够平稳地循环辊的滚柱螺杆。本发明的滚珠丝杠具有螺杆轴1，该螺杆轴1具有在其外表面上螺旋地形成有引线的滚子滚动表面1a; 螺母2，其具有螺旋形地形成在其内表面上的滚子滚动表面2a，以面对螺杆轴1的滚子滚动表面1a; 以及多个辊4，其布置在螺杆轴1的滚子滚动表面1a和螺母2的滚子滚动表面2a之间的滚动路径3中，并且在滚子的旋转轴线上旋转的同时沿着螺杆轴移动。在该滚子丝杠中，滚子4的旋转轴线4a基本上与螺杆轴1的中心线1b相交。由于滚子4的旋转轴线4a与螺杆轴1的中心线1b相交换句话说，即使滚动路径3具有引导，滚动路径3中布置的滚子4也不会从头开始偏斜），所以允许滚筒4平稳地移动。

5. 发明申请

US20080110286A1 Ball screw device 有权
公开(公告)号：US20080110286A1
公开(公告)日：2008-05-15
申请号：US12003590
申请日：2007-12-28
申请人： Kentarou Nishimura , Akimasa Yoshida , Hiroshi Niwa
发明人： Kentarou Nishimura , Akimasa Yoshida , Hiroshi Niwa
IPC分类号： F16H25/22
CPC分类号： F16C33/3706 , F16H25/2219 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： The invention relates to a ball screw device in which a screw shaft and a nut member are threadedly engaged with each other through a number of balls. In such a ball screw device, an inner surface of a cover plate contacting an end surface of a nut main body is provided with a projecting return piece adapted to be fit-engaged with a recess cut in an inner peripheral surface of the nut main body, the return piece being provided with a scoop portion for dislodging the balls from the ball rolling groove of the screw shaft and a direction switching passage for guiding the dislodged balls to the entrance of a ball return hole. The projecting return piece is divided into a first piece formed integral with the cover plate and a second piece fixed to the first piece by a curved plane including the center line of the direction switching passage.

6. 发明申请

US20090084212A1 SCREW DEVICE AND METHOD OF MANUFACTURING THE SAME 有权
标题翻译：螺丝装置及其制造方法
公开(公告)号：US20090084212A1
公开(公告)日：2009-04-02
申请号：US12298832
申请日：2007-04-27
申请人： Hiroshi Niwa , Akimasa Yoshida , Soshi Miyahara , Noriaki Chikamoto , Yasuhiro Kubota
发明人： Hiroshi Niwa , Akimasa Yoshida , Soshi Miyahara , Noriaki Chikamoto , Yasuhiro Kubota
IPC分类号： F16H25/22 , F16C29/06 , B23P17/00 , F16C33/38
CPC分类号： F16H25/2223 , B29C45/2618 , B29L2031/04 , F16H25/2214 , F16H2025/2481 , Y10T29/49691 , Y10T74/19772
摘要： Provided is a screw device capable of preventing occurrence of any elevation change at a joint between a ball return path of a circulation member and a loaded ball rolling groove of a nut.The circulation member 12 has end parts 14 and 15 each of which the periphery includes a rolling groove connecting part 22 positioned to the side of a loaded ball rolling groove 11a of a nut 11 and connected to the loaded ball rolling groove 11a of the nut 11 and a scooping part 23 positioned to the side of a ball rolling groove of a screw shaft 1 and scoops up balls 3 from a loaded ball rolling path. The rolling groove connecting part 22 of each of the end parts 14 and 15 is made of resin and formed integral with the nut 11.
摘要翻译：提供一种能够防止在循环构件的球返回路径与螺母的负载滚珠滚动槽之间的接头处发生任何高度变化的螺钉装置。循环构件12具有端部14和15，每个端部包括位于螺母11的负载滚珠滚动槽11a侧的滚动槽连接部分22，并与螺母11的负载滚珠滚动槽11a连接以及位于螺杆轴1的滚珠滚动槽的侧面的铲斗部23，并且从加载的滚珠滚道上舀出滚珠3。每个端部14和15的滚动槽连接部分22由树脂制成并与螺母11形成一体。

7. 发明授权

US08132479B2 Screw device and method of manufacturing the same 有权
标题翻译：螺丝装置及其制造方法
公开(公告)号：US08132479B2
公开(公告)日：2012-03-13
申请号：US12298832
申请日：2007-04-27
申请人： Hiroshi Niwa , Akimasa Yoshida , Soshi Miyahara , Noriaki Chikamoto , Yasuhiro Kubota
发明人： Hiroshi Niwa , Akimasa Yoshida , Soshi Miyahara , Noriaki Chikamoto , Yasuhiro Kubota
IPC分类号： F16H55/02
CPC分类号： F16H25/2223 , B29C45/2618 , B29L2031/04 , F16H25/2214 , F16H2025/2481 , Y10T29/49691 , Y10T74/19772
摘要： Provided is a screw device capable of preventing occurrence of any elevation change at a joint between a ball return path of a circulation member and a loaded ball rolling groove of a nut.The circulation member 12 has end parts 14 and 15 each of which the periphery includes a rolling groove connecting part 22 positioned to the side of a loaded ball rolling groove 11a of a nut 11 and connected to the loaded ball rolling groove 11a of the nut 11 and a scooping part 23 positioned to the side of a ball rolling groove of a screw shaft 1 and scoops up balls 3 from a loaded ball rolling path. The rolling groove connecting part 22 of each of the end parts 14 and 15 is made of resin and formed integral with the nut 11.
摘要翻译：提供一种能够防止在循环构件的球返回路径与螺母的负载滚珠滚动槽之间的接头处发生任何高度变化的螺钉装置。循环构件12具有端部14和15，每个端部包括位于螺母11的负载滚珠滚动槽11a侧的滚动槽连接部分22，并与螺母11的负载滚珠滚动槽11a连接以及位于螺杆轴1的滚珠滚动槽的侧面的铲斗部23，并且从加载的滚珠滚道上舀出滚珠3。每个端部14和15的滚动槽连接部分22由树脂制成并与螺母11形成一体。

8. 发明授权

US07870806B2 Ball screw device 有权
标题翻译：滚珠丝杠装置
公开(公告)号：US07870806B2
公开(公告)日：2011-01-18
申请号：US12003590
申请日：2007-12-28
申请人： Kentarou Nishimura , Akimasa Yoshida , Hiroshi Niwa
发明人： Kentarou Nishimura , Akimasa Yoshida , Hiroshi Niwa
IPC分类号： F16H25/20
CPC分类号： F16C33/3706 , F16H25/2219 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： The invention relates to a ball screw device in which a screw shaft and a nut member are threadedly engaged with each other through a number of balls. In such a ball screw device, an inner surface of a cover plate contacting an end surface of a nut main body is provided with a projecting return piece adapted to be fit-engaged with a recess cut in an inner peripheral surface of the nut main body, the return piece being provided with a scoop portion for dislodging the balls from the ball rolling groove of the screw shaft and a direction switching passage for guiding the dislodged balls to the entrance of a ball return hole. The projecting return piece is divided into a first piece formed integral with the cover plate and a second piece fixed to the first piece by a curved plane including the center line of the direction switching passage.
摘要翻译：本发明涉及一种滚珠丝杠装置，其中螺杆轴和螺母构件通过多个滚珠彼此螺纹接合。在这种滚珠丝杠装置中，与螺母主体的端面接触的盖板的内表面设置有突出的复位件，该突出的返回件适于与在螺母主体的内周面上切割的凹部配合所述返回片设置有用于从所述螺杆轴的滚珠滚动槽中移除滚珠的铲斗部分和用于将移动的球引导到球返回孔的入口的方向切换通道。突出的返回片被分成与盖板一体形成的第一片和通过包括方向切换通道的中心线的弯曲平面固定到第一片的第二片。

9. 发明授权

US07350434B2 Ball screw device 有权
标题翻译：滚珠丝杠装置
公开(公告)号：US07350434B2
公开(公告)日：2008-04-01
申请号：US10485881
申请日：2002-09-03
申请人： Kentarou Nishimura , Akimasa Yoshida , Hiroshi Niwa
发明人： Kentarou Nishimura , Akimasa Yoshida , Hiroshi Niwa
IPC分类号： F16H25/22
CPC分类号： F16C33/3706 , F16H25/2219 , Y10T74/19749 , Y10T74/19767 , Y10T74/19772
摘要： The invention relates to a ball screw device in which a screw shaft and a nut member are threadedly engaged with each other through a number of balls. In such a ball screw device, an inner surface of a cover plate contacting an end surface of a nut main body is provided with a projecting return piece adapted to be fit-engaged with a recess cut in an inner peripheral surface of the nut main body, the return piece being provided with a scoop portion for dislodging the balls from the ball rolling groove of the screw shaft and a direction switching passage for guiding the dislodged balls to the entrance of a ball return hole. The projecting return piece is divided into a first piece formed integral with the cover plate and a second piece fixed to the first piece by a curved plane including the center line of the direction switching passage.
摘要翻译：本发明涉及一种滚珠丝杠装置，其中螺杆轴和螺母构件通过多个滚珠彼此螺纹接合。在这种滚珠丝杠装置中，与螺母主体的端面接触的盖板的内表面设置有突出的复位件，该突出的返回件适于与在螺母主体的内周面上切割的凹部配合所述返回片设置有用于从所述螺杆轴的滚珠滚动槽中移除滚珠的铲斗部分和用于将移动的球引导到球返回孔的入口的方向切换通道。突出的返回片被分成与盖板一体形成的第一片和通过包括方向切换通道的中心线的弯曲平面固定到第一片的第二片。

10. 发明申请

US20100282011A1 ROLLER SCREW AND METHOD OF CIRCULATING ROLLERS IN ROLLER SCREW 有权
标题翻译：滚子螺杆和滚子螺旋滚子的循环方法
公开(公告)号：US20100282011A1
公开(公告)日：2010-11-11
申请号：US12744175
申请日：2008-11-14
申请人： Kentaro Nishimura , Tetsuya Miura , Akimasa Yoshida , Soshi Miyahara , Yusuke Todoroki , Takashi Sakuyama
发明人： Kentaro Nishimura , Tetsuya Miura , Akimasa Yoshida , Soshi Miyahara , Yusuke Todoroki , Takashi Sakuyama
IPC分类号： F16H25/22
CPC分类号： F16H25/2247 , F16H2025/2271 , Y10T74/19749 , Y10T74/19772
摘要： There is provided a roller screw in which a twisted amount of an unloaded return path is reduced.The roller screw has a screw shaft 1 having a spiral roller-rolling surface is on an outer peripheral surface thereof; a nut 2 having a spiral loaded roller-rolling surface 2a on an inner peripheral surface thereof, the spiral loaded roller-rolling surface being opposed to the roller-rolling surface is of the screw shaft 1; a circulation member 7 arranged in the nut 2 and formed to have an unloaded return path 8 connecting one end and the other end of the loaded roller-rolling surface 2a, whose turn number is less than one, of the nut 2; and a plurality of rollers 4 arranged in a one-turn roller circulation path composed by a loaded roller-rolling path 6 and the unloaded return path 8. The circulation member 7 guides the rollers which have moved and arrived at the one end of the loaded roller-rolling path 6 having less than one turn, to the unloaded return path 8, and then returns the rollers to the other end of the loaded roller-rolling path 6 having less than one turn. The number of turns of the loaded roller-rolling path 6 is set to be less than one turn, whereby the rollers 4 which have arrived at one end of the loaded roller-rolling path 6 can be transferred to the other end of the loaded roller-rolling path 6 without changing their attitudes.
摘要翻译：提供了一种滚子丝杠，其中卸载的返回路径的扭转量减小。滚子丝杠具有螺旋滚子滚动面的螺旋轴1在其外周面上; 在其内周面上具有螺旋负载的滚动滚动面2a的螺母2与滚子滚动面相对的螺旋加载滚动滚动面是螺杆轴1; 布置在螺母2中并且形成为具有将螺母2的转数小于1的加载的滚动滚动面2a的一端与另一端连接的无载返回路径8的循环构件7; 以及多个辊4，其布置在由加载的滚动滚动路径6和未加载的返回路径8组成的单圈辊循环路径中。循环构件7引导已经移动并到达加载的滚动路径的一端的辊具有小于1转的滚动滚道6到无载返回路径8，然后将辊返回到具有小于一圈的负载滚动滚动路径6的另一端。负载滚动滚动路径6的匝数被设定为小于一圈，从而可以将已经到达负载的滚动滚动路径6的一端的辊4传递到负载辊的另一端滚动路径6，而不改变他们的态度。

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