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公开(公告)号：US06662921B2
公开(公告)日：2003-12-16
申请号：US10187366
申请日：2002-07-02
申请人： Isamu Yoshida , Keisuke Kazuno , Koji Sato
发明人： Isamu Yoshida , Keisuke Kazuno , Koji Sato
IPC分类号： B62D300
CPC分类号： F16D41/067 , F16H25/20 , F16H25/2204 , Y10T74/18576 , Y10T74/18696
摘要： To provide a wheel steering apparatus capable of exhibiting a stabilized vehicle steerability without transmitting an external disturbance torque to a motor rotor even when the wheel receives an axially acting external force, this wheel steering apparatus includes a reciprocatingly movable rod 3 drivingly connected with a support member 2 for steerably supporting a wheel 1, and a ball screw mechanism 5 for reciprocatingly moving the rod 3 in response to rotation of a drive motor 4. In a rotational transmission system for transmitting rotation of the drive motor 4 to a nut member 5b of the ball screw mechanism 5, a clutch assembly 6 defining a reverse input limiting means is provided for preventing a rotar of the drive motor 4 from being rotated by the external force acting on the wheel 1. This clutch assembly 6 used is of a design wherein although rotation can be transmitted from an input shaft to an output shaft, no rotation is transmitted from the output shaft to the input shaft.
摘要翻译： 为了提供即使在车轮受到轴向作用的外力的情况下也能够显示稳定的车辆操纵性而不向外部扰动转矩传递的车轮转向装置，该车轮转向装置包括与支撑部件驱动连接的往复运动杆3 2，用于可转动地支撑车轮1;以及滚珠丝杠机构5，用于响应于驱动马达4的旋转使杆3往复运动。在用于将驱动马达4的旋转传递到螺母构件5b的旋转传动系统中 滚珠丝杠机构5，限定反向输入限制装置的离合器组件6被设置成用于防止驱动马达4的转子由于作用在车轮1上的外力而旋转。所使用的离合器组件6具有如下设计： 旋转可以从输入轴传递到输出轴，不会从输出轴向输入轴转动。
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公开(公告)号：US06991062B2
公开(公告)日：2006-01-31
申请号：US10065076
申请日：2002-09-13
申请人： Isamu Yoshida , Keisuke Kazuno , Morihisa Yoshioka
发明人： Isamu Yoshida , Keisuke Kazuno , Morihisa Yoshioka
IPC分类号： B62D5/04
CPC分类号： B62D5/0448 , F16H25/24 , F16H2025/2445
摘要： A ball screw mechanism comprises a screw shaft, a nut and balls. The nut has a cylindrical portion in the axial middle on the outer peripheral surface thereof that becomes a fitting surface for fitting in a sleeve, and small diameter step portions in the opposite axial sides on the outer peripheral surface thereof that become non-fitting surfaces not fitting in the sleeve. A portion of a wheel steering shaft is provided with the screw shaft, and a plurality of balls are disposed in a rolling way defined between a thread groove formed in the outer periphery of the screw shaft and a thread groove formed in the inner periphery of the nut.
摘要翻译： 滚珠丝杠机构包括螺杆轴，螺母和滚珠。 螺母在其外周面的轴向中央具有圆筒部，成为配合于套筒的嵌合面，在其外周面的与其外周面相反的轴向侧的小直径台阶部不成为不配合的面 装在袖子里。 轮转向轴的一部分设置有螺杆轴，并且多个滚珠以滚动方式设置，该滚珠形成在螺纹轴的外周中形成的螺纹槽和形成在螺纹轴的内周中的螺纹槽之间 坚果。
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公开(公告)号：US07062987B2
公开(公告)日：2006-06-20
申请号：US10299345
申请日：2002-11-19
申请人： Isamu Yoshida , Keisuke Kazuno
发明人： Isamu Yoshida , Keisuke Kazuno
IPC分类号： F16H1/18
CPC分类号： F16C33/3706 , F16C33/3713 , F16C33/6696 , F16H25/2238 , F16H63/067 , Y10T74/19777
摘要： A ball screw in a continuously variable speed transmission has an axially immovable pulley half (2) and axially movable pulley half (3) both mounted on a rotary shaft (4). The axially movable pulley half (3) is moved by a ball screw (20) so as to infinitely vary the belt wrapping radius and thus the transmission speed. A nut (22), forming one part of the ball screw (20), is immovably secured in both axial and rotational directions. A screw shaft (21), forming the other part of the ball screw (20), is movable in both axial and rotational directions. The screw shaft 21 is connected to the axially movable pulley half (3). The axially movable pulley half (3) is axially moved by rotating the screw shaft (21).
摘要翻译： 无级变速传动装置中的滚珠丝杠具有安装在旋转轴（4）上的轴向不可移动的滑轮半部（2）和可轴向移动的滑轮半部（3）。 轴向移动的滑轮半部（3）通过滚珠丝杠（20）移动，以便无级地改变皮带包裹半径，从而使传送速度变化。 形成滚珠丝杠（20）的一部分的螺母（22）在轴向和旋转方向上都是不可移动的。 形成滚珠丝杠（20）的另一部分的螺杆轴（21）可沿轴向和旋转方向移动。 螺杆轴21连接到可轴向移动的滑轮半部（3）。 轴向移动的滑轮半部（3）通过旋转螺杆轴（21）而轴向移动。
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公开(公告)号：US08240222B2
公开(公告)日：2012-08-14
申请号：US11354342
申请日：2006-02-14
申请人： Morihisa Yoshioka , Keisuke Kazuno
发明人： Morihisa Yoshioka , Keisuke Kazuno
CPC分类号： F16H25/2223 , Y10T74/18576 , Y10T74/19721 , Y10T74/19753 , Y10T74/19772
摘要： An electrically driven linear actuator with a smooth motion of a ball screw provides an even load distribution as well as a stable motion of the balls and has an electric motor (5) mounted on a housing (4). A nut (8 or 16), adapted to mate with the screw shaft (7), has a pair of supporting portions (14) at an axially central position on the outer circumferential surface of the nut (8 or 16) to engage one end of a link (2). The nut (8, 16) is formed with a screw groove (8a). Oval bridge windows (10) are formed in the nut (8 or 16) through a wall with a portion of the screw groove (8a) cut out over a distance of at least two pitches of the screw grooves (8a). A bridge member (11), forming the circulating member, is fitted in each of the bridge windows (10).
摘要翻译： 具有滚珠丝杠平滑运动的电驱动线性致动器提供均匀的负载分布以及球的稳定运动，并且具有安装在壳体（4）上的电动机（5）。 适于与螺杆轴（7）配合的螺母（8或16）在螺母（8或16）的外圆周表面上的轴向中心位置具有一对支撑部分（14） 的链接（2）。 螺母（8,16）形成有螺纹槽（8a）。 椭圆形的桥梁窗口（10）通过一个壁形成在螺母（8或16）中，螺纹槽（8a）的一部分在螺纹槽（8a）的至少两个间距的距离处被切出。 形成循环构件的桥构件（11）装配在每个桥窗（10）中。
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公开(公告)号：US08141445B2
公开(公告)日：2012-03-27
申请号：US12186683
申请日：2008-08-06
IPC分类号： F16H25/20
CPC分类号： F16C35/063 , F16C19/166 , F16H25/24 , Y10T29/49696 , Y10T29/49908 , Y10T29/49915 , Y10T74/18576 , Y10T74/1868
摘要： A ball screw shaft supporting structure of a ball screw rotationally supported by a housing via supporting bearings has a screw shaft formed, on its outer circumference, with a fitting portion and a positioning shoulder. An inner ring of the supporting bearing is press fit onto the fitting portion via a predetermined interference. A steel spacer ring is fit onto the fitting portion from the outer side of the supporting bearing with the inner side of the inner ring abutted against the shoulder. A caulking portion is formed on the end of the fitting portion by plastically deforming the end of the fitting portion radially outward. The inner ring is axially immovably secured on the screw shaft by the caulking portion via, the spacer ring.
摘要翻译： 通过支撑轴承由壳体旋转支撑的滚珠丝杠的滚珠丝杠轴支撑结构具有在其外圆周上与配合部分和定位肩部形成的螺纹轴。 支撑轴承的内圈通过预定的干涉压配合到装配部分上。 钢支架环从支撑轴承的外侧装配到配合部分上，内圈的内侧抵靠在肩部上。 通过使嵌合部的端部径向向外塑性变形，在嵌合部的端部形成铆接部。 内圈通过铆接部分通过间隔环轴向地固定在螺杆轴上。
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公开(公告)号：US20060196291A1
公开(公告)日：2006-09-07
申请号：US11354342
申请日：2006-02-14
申请人： Morihisa Yoshioka , Keisuke Kazuno
发明人： Morihisa Yoshioka , Keisuke Kazuno
IPC分类号： F16H1/24
CPC分类号： F16H25/2223 , Y10T74/18576 , Y10T74/19721 , Y10T74/19753 , Y10T74/19772
摘要： An electrically driven linear actuator with a smooth motion of the ball screw provides an even load distribution as well as a stable motion of the balls and has an electric motor (5) mounted on a housing (4). A screw shaft (7) is coaxially connected to a motor shaft (5a) of the electric motor (5). The screw shaft (7) has a screw groove (7a) formed on its outer circumferential surface. A nut (8 or 16), adapted to mate with the screw shaft (7), has a pair of supporting portions (14) at an axially central position on the outer circumferential surface of the nut (8 or 16) to engage one end of a link (2). The nut (8, 16) is formed with a screw groove (8a), corresponding to the shaft screw groove (7a), on its inner circumferential surface. A number of balls (9) are contained between the screw grooves (7a and 8a). Ball circulating members (11), each being formed with an endless ball circulating passage, are positioned between the screw grooves (7a and 8a). A ball screw (3) which converts rotary motion of the electric motor into an axial motion also transmits a swing motion to the link. A pair of supporting bearings (13) rotatably supports the screw shaft (7). However, the screw shaft 7 is axially immovably relative to the housing (4). Oval bridge windows (10) are formed in a barrel of the nut (8 or 16) through a wall of the barrel with a portion of the screw groove (8a) cut out over a distance of at least two pitches of the screw grooves (8a). A bridge member (11), forming the circulating member, is fitted in each of the bridge windows (10).
摘要翻译： 具有滚珠丝杠平滑运动的电驱动线性致动器提供均匀的负载分布以及球的稳定运动，并且具有安装在壳体（4）上的电动机（5）。 螺杆轴（7）与电动马达（5）的马达轴（5a）同轴连接。 螺杆轴（7）具有形成在其外周面上的螺纹槽（7a）。 适于与螺杆轴（7）配合的螺母（8或16）在螺母（8或16）的外圆周表面上的轴向中心位置具有一对支撑部分（14） 的链接（2）。 螺母（8,16）在其内周面上形成有与轴螺纹槽（7a）对应的螺纹槽（8a）。 多个滚珠（9）容纳在螺纹槽（7a和8a）之间。 每个形成有环形循环通道的滚珠循环构件（11）位于螺纹槽（7a和8a）之间。 将电动机的旋转运动转换成轴向运动的滚珠丝杠（3）也向连杆传递摆动运动。 一对支撑轴承（13）可旋转地支撑螺杆轴（7）。 然而，螺杆轴7相对于壳体（4）轴向地不可移动。 椭圆形的桥梁窗口（10）通过所述筒体的壁形成在所述螺母（8或16）的筒体中，所述螺纹槽（8a）的一部分在所述螺纹槽的至少两个间距的距离处被切出 （8 a）。 形成循环构件的桥构件（11）装配在每个桥窗（10）中。
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公开(公告)号：US07536928B2
公开(公告)日：2009-05-26
申请号：US11455296
申请日：2006-06-16
申请人： Keisuke Kazuno
发明人： Keisuke Kazuno
IPC分类号： F16H1/18
CPC分类号： F16H25/2204 , F16H25/2223 , F16H2025/2242 , Y10T74/18728 , Y10T74/19721 , Y10T74/19753 , Y10T74/19767
摘要： A ball screw, which improves its durability under circumstances where a radial load and a moment load are applied to it, has a screw shaft (2) formed with a helical screw groove (2a) on its outer circumferential surface. A nut (3) is adapted to mate with the screw shaft (2). The nut (3) is formed with a helical screw groove (3a) on its inner circumferential surface. The nut helical screw groove (3a) corresponds to the screw shaft screw groove (2a). A number of balls (4) are rollably contained within a ball rolling passage formed by the oppositely arranged screw grooves (2a, 3a). Bridge members (5), each formed with a connecting groove (5a) on its inner circumferential surface, connect the screw grooves (3a) of the nut (3). A contact angle (α) between each ball (4) and one or both the screw grooves (2a, 3a) is set within a range of about 20˜40°.
摘要翻译： 在施加径向载荷和力矩载荷的情况下提高耐久性的滚珠丝杠具有在其外周面上形成有螺旋形螺纹槽（2a）的螺杆轴（2）。 螺母（3）适于与螺杆轴（2）配合。 螺母（3）在其内周面上形成有螺旋形的螺旋槽（3a）。 螺母螺旋槽（3a）对应于螺杆轴螺纹槽（2a）。 多个滚珠（4）可旋转地包含在由相对设置的螺纹槽（2a，3a）形成的滚珠滚动通道内。 桥构件（5）在其内周面上形成有连接槽（5a），连接螺母（3）的螺纹槽（3a）。 每个球（4）与一个或两个螺纹槽（2a，3a）之间的接触角（α）设定在约20〜40°的范围内。
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公开(公告)号：US20070000342A1
公开(公告)日：2007-01-04
申请号：US11455296
申请日：2006-06-16
申请人： Keisuke Kazuno
发明人： Keisuke Kazuno
IPC分类号： F16H1/24
CPC分类号： F16H25/2204 , F16H25/2223 , F16H2025/2242 , Y10T74/18728 , Y10T74/19721 , Y10T74/19753 , Y10T74/19767
摘要： A ball screw, which improves its durability under circumstances where a radial load and a moment load are applied to it, has a screw shaft (2) formed with a helical screw groove (2a) on its outer circumferential surface. A nut (3) is adapted to mate with the screw shaft (2). The nut (3) is formed with a helical screw groove (3a) on its inner circumferential surface. The nut helical screw groove (3a) corresponds to the screw shaft screw groove (2a). A number of balls (4) are rollably contained within a ball rolling passage formed by the oppositely arranged screw grooves (2a, 3a). Bridge members (5), each formed with a connecting groove (5a) on its inner circumferential surface, connect the screw grooves (3a) of the nut (3). A contact angle (a) between each ball (4) and one or both the screw grooves (2a, 3a) is set within a range of about 20˜40°.
摘要翻译： 在施加径向载荷和力矩载荷的情况下提高其耐久性的滚珠丝杠具有在其外周面上形成有螺旋形螺纹槽（2a）的螺杆轴（2）。 螺母（3）适于与螺杆轴（2）配合。 螺母（3）在其内圆周表面上形成有螺旋形螺纹槽（3a）。 螺母螺旋槽（3a）对应于螺杆轴螺纹槽（2a）。 多个滚珠（4）可旋转地包含在由相对设置的螺纹槽（2a，3a）形成的滚珠滚动通道内。 桥构件（5）在其内周面上形成有连接槽（5a），连接螺母（3）的螺纹槽（3a）。 每个球（4）与一个或两个螺纹槽（2a，3a）之间的接触角（a）设定在约20〜40°的范围内。
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公开(公告)号：US20080295625A1
公开(公告)日：2008-12-04
申请号：US12186683
申请日：2008-08-06
IPC分类号： F16H25/22
CPC分类号： F16C35/063 , F16C19/166 , F16H25/24 , Y10T29/49696 , Y10T29/49908 , Y10T29/49915 , Y10T74/18576 , Y10T74/1868
摘要： A ball screw shaft supporting structure of a ball screw rotationally supported by a housing via supporting bearings has a screw shaft formed, on its outer circumference, with a fitting portion and a positioning shoulder. An inner ring of the supporting bearing is press fit onto the fitting portion via a predetermined interference. A steel spacer ring is fit onto the fitting portion from the outer side of the supporting bearing with the inner side of the inner ring abutted against the shoulder. A caulking portion is formed on the end of the fitting portion by plastically deforming the end of the fitting portion radially outward. The inner ring is axially immovably secured on the screw shaft by the caulking portion via, the spacer ring.
摘要翻译： 通过支撑轴承由壳体旋转支撑的滚珠丝杠的滚珠丝杠轴支撑结构具有在其外圆周上与配合部分和定位肩部形成的螺纹轴。 支撑轴承的内圈通过预定的干涉压配合到装配部分上。 钢支架环从支撑轴承的外侧装配到配合部分上，内圈的内侧抵靠在肩部上。 通过使嵌合部的端部径向向外塑性变形，在嵌合部的端部形成铆接部。 内圈通过铆接部分通过间隔环轴向地固定在螺杆轴上。
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公开(公告)号：US20060207361A1
公开(公告)日：2006-09-21
申请号：US11376664
申请日：2006-03-15
申请人： Keisuke Kazuno
发明人： Keisuke Kazuno
CPC分类号： F16H25/2223 , F16H25/24 , F16H2025/2481 , Y10T74/18744
摘要： A ball screw (1) used under agitated oil lubrication has a screw shaft (2) formed with a helical screw groove (2a) on its outer circumferential surface. A nut (3) is adapted to fit onto the screw shaft (2). The nut (3) has a helical screw groove (3a) on its inner circumferential surface. A plurality of balls (4) is contained in a rolling passage formed between oppositely arranged screw grooves (2a and 3a). A bridge member (5) is adapted to fit into a bridge window (6) formed through a barrel wall of the nut (3). The bridge member (5) has a connecting groove (5a) to enable the balls (4) to bypass the rolling passage to move into a radially outward circumferential passage. A notch is formed in the bridge member (5) to intercommunicate the outer and inner circumferential portions of the nut (3).
摘要翻译： 在搅拌油润滑下使用的滚珠丝杠（1）具有在其外圆周表面上形成有螺旋形螺纹槽（2a）的螺杆轴（2）。 螺母（3）适于装配到螺杆轴（2）上。 螺母（3）在其内圆周表面上具有螺旋形螺纹槽（3a）。 在相对设置的螺纹槽（2a和3a）之间形成的滚动通道中容纳有多个滚珠（4）。 桥构件（5）适于装配到穿过螺母（3）的筒壁形成的桥窗口（6）中。 桥构件（5）具有连接槽（5a），以使球（4）绕过滚动通道以移动到径向向外的周向通道中。 在桥构件（5）中形成有用于使螺母（3）的外圆周部分和内圆周部分相互连通的凹口。
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