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1. 发明申请

US20110120798A1 ELECTRIC POWER STEERING SYSTEM 有权
标题翻译：电力转向系统
公开(公告)号：US20110120798A1
公开(公告)日：2011-05-26
申请号：US12737622
申请日：2009-07-31
申请人： Yoshikazu Kawada , Terukazu Nakajima , Toshiharu Mikami , Shingo Takayama
发明人： Yoshikazu Kawada , Terukazu Nakajima , Toshiharu Mikami , Shingo Takayama
IPC分类号： B62D5/04
CPC分类号： B62D1/16 , B62D5/0409 , B62D6/10 , G01L3/104 , G01L5/221
摘要： An electric power steering system (1) includes a tubular sensor housing (34) which accommodates a torque sensor (20), a gear housing (32) which accommodates a speed reduction mechanism (24), and an upper bearing (40) and a lower bearing (41) which rotatably support a steering shaft (3) on opposite sides of the speed reduction mechanism (24). The gear housing (32) includes a tubular lower housing (37) supporting the lower bearing (41), and an upper housing (36). The upper housing (36) includes an inner tube (67), an outer tube (68), and an annular connection wall (69) connecting the inner tube (67) and the outer tube (68). The outer tube (68) is press-fitted in the lower housing (37). The inner tube (67) is press-fitted to an inner periphery (72) of a lower portion (71) of the sensor housing (34), whereby the inner tube (67) has a reduced diameter. As a result, an outer ring (44) of the upper bearing (40) is tightly fitted and supported in the inner tube (67).
摘要翻译：电动助力转向系统（1）包括容纳扭矩传感器（20）的管状传感器壳体（34），容纳减速机构（24）的齿轮箱（32）和上轴承（40）和在所述减速机构（24）的相对侧可转动地支撑转向轴（3）的下轴承（41）。齿轮壳体（32）包括支撑下轴承（41）的管状下壳体（37）和上壳体（36）。上壳体（36）包括内管（67），外管（68）和连接内管（67）和外管（68）的环形连接壁（69）。外管（68）压配合在下壳体（37）中。内管（67）压配合到传感器壳体（34）的下部（71）的内周（72），由此内管（67）的直径减小。结果，上轴承（40）的外圈（44）紧密配合并支撑在内管（67）中。

2. 发明申请

US20110084470A1 SHOCK ABSORBING STEERING APPARATUS 审中-公开
标题翻译：减震转向装置
公开(公告)号：US20110084470A1
公开(公告)日：2011-04-14
申请号：US12995324
申请日：2009-06-22
申请人： Yasuhiro Tanioka , Terukazu Nakajima , Takashi Sumida , Yoshikazu Kawada
发明人： Yasuhiro Tanioka , Terukazu Nakajima , Takashi Sumida , Yoshikazu Kawada
IPC分类号： B62D1/19
CPC分类号： B62D1/195 , B62D1/192
摘要： An upper bracket for mounting a column to a vehicle body includes a column support portion which is press-fitted on an outer periphery of the column through axial press-fitting action with a predetermined interference between the column and the column support portion. Hence, the column is in relative press-fit relation to the bracket and is normally in pressure contact with the column support portion. Therefore, if a secondary collision exerts an impact force on the column pushing the column in the axial direction, the column is moved as generating strong friction with the column support portion. Accordingly, the impact energy of the secondary collision is attenuated by the friction. Thus, a shock absorbing steering apparatus featuring a simple structure ensuring a stable operation can be provided.
摘要翻译：用于将柱安装到车身的上支架包括柱支撑部分，其通过轴和柱支撑部分之间的预定干涉的轴向压配动作压配在柱的外周。因此，柱与支架处于相对的压配合关系，并且通常与柱支撑部分压力接触。因此，如果二次碰撞对沿着轴向推动柱的柱施加冲击力，则柱与柱支撑部产生强烈的摩擦而移动。因此，二次碰撞的冲击能量被摩擦减弱。因此，可以提供具有确保稳定操作的简单结构的减震转向装置。

3. 发明授权

US07055397B2 Torque detector and method of manufacturing housing of torque detector 失效
公开(公告)号：US07055397B2
公开(公告)日：2006-06-06
申请号：US11257059
申请日：2005-10-25
申请人： Terukazu Nakajima , Suzo Hirakushi
发明人： Terukazu Nakajima , Suzo Hirakushi
IPC分类号： G01L1/22
CPC分类号： G01L5/221 , B62D5/0406 , B62D6/10 , G01L3/105
摘要： A torque detector includes: a monolithic tubular housing for supporting a rotating shaft, including an opening at one end in a longitudinal direction; a sensor holding hole for holding a sensor part detecting a rotating torque exerted on the rotating shaft, which is provided inside the housing and communicates with the opening; a board chamber for accommodating a circuit board outputting a signal corresponding to the detected rotating torque, which is provided inside the housing and communicates with the opening; a partition wall between the sensor holding hole and the board chamber; and a lead hole passing through the partition wall, into which a lead connecting the sensor part to the circuit board is inserted and which communicates with the opening. The housing is formed by drawing a sheet material in the longitudinal direction.

4. 发明授权

US06895828B2 Torque sensor and method of manufacturing torque sensor 有权
标题翻译：扭矩传感器和扭矩传感器的制造方法
公开(公告)号：US06895828B2
公开(公告)日：2005-05-24
申请号：US10715389
申请日：2003-11-19
申请人： Norio Nakatani , Takahiro Sanada , Terukazu Nakajima , Masayuki Yamamoto , Naoki Fukui
发明人： Norio Nakatani , Takahiro Sanada , Terukazu Nakajima , Masayuki Yamamoto , Naoki Fukui
IPC分类号： G01L3/10 , G01L5/22 , G01L3/02
CPC分类号： G01L5/221 , G01L3/105
摘要： A magnetic first detecting cylinder covers a magnetism leakage preventing member covering a first shaft. A second detecting cylinder is rotated along with a second shaft connected to the first shaft and one end thereof is opposed to one end of the first detecting cylinder with a clearance. A reluctance with respect to a passing magnetic flux in a first magnetic circuit constituted by generating the magnetic flux passing the first detecting cylinder and the second detecting cylinder by a first coil, is changed in accordance with an elastic relative rotational amount by a change in a transmitting torque of the two shafts. The magnetism leakage preventing member is molded from a synthetic resin material injected into a molding die. The first shaft and the first detecting cylinder are integrated to the magnetism leakage preventing member molded by being inserted into the molding die before injecting the synthetic resin material.
摘要翻译：磁性第一检测气缸覆盖覆盖第一轴的防止漏磁部件。第二检测气缸与连接到第一轴的第二轴一起旋转，并且其一端与第一检测气缸的一端以间隙相对。通过产生通过第一线圈的第一检测气缸和第二检测气缸的磁通量而构成的第一磁路中的通过磁通的磁阻根据弹性相对旋转量根据弹性相对旋转量而变化传递两个轴的扭矩。防止漏磁部件由注入成型模具的合成树脂材料成型。第一轴和第一检测气缸与注入合成树脂材料之前通过插入到模具中而成型的防漏件相结合。

5. 发明授权

US06470993B1 Electric power steering apparatus 失效
标题翻译：电动助力转向装置
公开(公告)号：US06470993B1
公开(公告)日：2002-10-29
申请号：US09187773
申请日：1998-11-06
申请人： Akinobu Matsuda , Masayuki Watanabe , Terukazu Nakajima , Kaname Joshita
发明人： Akinobu Matsuda , Masayuki Watanabe , Terukazu Nakajima , Kaname Joshita
IPC分类号： B62D504
CPC分类号： B62D3/126 , B62D5/0409 , B62D5/043 , B62D5/0442 , Y10T74/19633 , Y10T74/1967 , Y10T74/19949
摘要： An electronic power steering apparatus according to the present invention uses hypoid gears having a larger gear on a steering assisting motor side and a smaller gear on a pinion shaft side as a transmission device for transmitting a rotational force of the motor to the pinion shaft or a column shaft, thereby reducing a shaft-to-shaft distance required between the motor and the pinion shaft. Further, rack teeth, which have a pressure angle that reduces toward both of the ends of a moving stroke of a rack shaft, are formed on the rack shaft that engages the pinion gear so that an insufficient steering assisting force is supplemented at the stroke ends, that is, at a large steering range; thus, it is possible to miniaturize the motor. Therefore, it becomes possible to reduce a space occupied by the motor on the periphery of the column shaft or the pinion shaft, and consequently to allow easy installation inside the automobile room or the engine room.
摘要翻译：根据本发明的电动助力转向装置使用在转向辅助电动机侧具有较大齿轮的准双曲面齿轮和小齿轮轴侧的较小齿轮作为将电动机的旋转力传递到小齿轮轴的传动装置或柱轴，从而减小电机和小齿轮轴之间所需的轴与轴之间的距离。此外，具有朝向齿条轴的移动行程的两端减小的压力角的齿条齿形成在与小齿轮接合的齿条轴上，使得在行程末端补充不足的转向辅助力，即在较大的转向范围内; 因此，可以使电动机小型化。因此，可以减小列轴或小齿轮轴的周边上的电动机所占的空间，从而容易地安装在汽车室或发动机室内。

6. 发明授权

US5738183A Motor operated power steering device 失效
标题翻译：电机动力转向装置
公开(公告)号：US5738183A
公开(公告)日：1998-04-14
申请号：US658125
申请日：1996-06-04
申请人： Terukazu Nakajima , Manabu Takaoka
发明人： Terukazu Nakajima , Manabu Takaoka
IPC分类号： B62D5/04
CPC分类号： B62D5/0409
摘要： In a motor operated power steering device, a drive shaft accommodation hole in a housing communicates with a opening for fitting a steering assistance power generation motor. In the accommodation hole, a drive shaft, which is driven by the motor, is supported by rolling bearings at two separate points along the axial direction. A steering shaft is linked to a driven gear which meshes with a driving gear provided around the outer circumference of the drive shaft. Around the outer circumference of the drive shaft, there is a ring shaped preload applying member, the outer circumference of which has a male threaded section. The preload applying member is screwed into a female threaded hole, which is concentric with the accommodation hole, in between the motor and the rolling bearing closest to the motor, so that it is able to apply preload along the axial direction to both rolling bearings.
摘要翻译：在电动动力转向装置中，壳体中的驱动轴容纳孔与用于安装转向辅助发电电动机的开口连通。在容纳孔中，由电动机驱动的驱动轴在轴向两个分开的点处由滚动轴承支撑。转向轴与从动齿轮连接，所述从动齿轮与设置在驱动轴的外周周围的驱动齿轮啮合。在驱动轴的外周周围，存在环形的预加载施加构件，其外周具有阳螺纹部。预紧施加构件螺纹连接在与容纳孔同心的阴螺纹孔中，位于电动机和最靠近电动机的滚动轴承之间，使得其能够沿轴向将预载荷施加到两个滚动轴承。

7. 发明授权

US5544542A Shock absorbing steering device and method of manufacturing the device 失效
标题翻译：减震转向装置及其制造方法
公开(公告)号：US5544542A
公开(公告)日：1996-08-13
申请号：US255715
申请日：1994-06-07
申请人： Terukazu Nakajima
发明人： Terukazu Nakajima
IPC分类号： B60Q5/00 , B62D1/19 , F16F7/12 , B62D1/18
CPC分类号： F16F7/125 , B60Q5/003 , B62D1/192
摘要： Rotation of a steering wheel (7) is transferred to a steering gear (17) via a pipe-like first shaft (2) and a second shaft (3), which is inserted in the first shaft (2) so that transfer of rotation between the two shafts (2), (3) and relative axial movement between the two shafts (2), (3) are allowable. A ball (23) inserted in a through hole (20) formed through the first shaft (2) is held by a recess (21) formed on the outer surface of the second shaft (3), so that a portion of the ball (23) is projected from the outer surface of the second shaft (3). The inner surface of the first shaft (2) is plasticly deformed by the ball (23) by displacing the recess (21) away from the through hole (20) to form a groove (25).
摘要翻译：方向盘（7）的旋转通过管状第一轴（2）和第二轴（3）传递到转向齿轮（17），第二轴（3）插入第一轴（2）中，以便转动两个轴（2），（3）和两个轴（2），（3）之间的相对轴向运动是允许的。插入通过第一轴（2）形成的通孔（20）中的球（23）由形成在第二轴（3）的外表面上的凹部（21）保持，使得球 23）从第二轴（3）的外表面突出。通过使凹部（21）从通孔（20）移开而形成凹槽（25），第一轴（2）的内表面通过球体（23）塑性变形。

8. 发明授权

US08448742B2 Electric power steering system 有权
标题翻译：电动助力转向系统
公开(公告)号：US08448742B2
公开(公告)日：2013-05-28
申请号：US12737622
申请日：2009-07-31
申请人： Yoshikazu Kawada , Terukazu Nakajima , Toshiharu Mikami , Shingo Takayama
发明人： Yoshikazu Kawada , Terukazu Nakajima , Toshiharu Mikami , Shingo Takayama
IPC分类号： B62D5/04
CPC分类号： B62D1/16 , B62D5/0409 , B62D6/10 , G01L3/104 , G01L5/221
摘要： An electric power steering system (1) includes a tubular sensor housing (34) which accommodates a torque sensor (20), a gear housing (32) which accommodates a speed reduction mechanism (24), and an upper bearing (40) and a lower bearing (41) which rotatably support a steering shaft (3) on opposite sides of the speed reduction mechanism (24). The gear housing (32) includes a tubular lower housing (37) supporting the lower bearing (41), and an upper housing (36). The upper housing (36) includes an inner tube (67), an outer tube (68), and an annular connection wall (69) connecting the inner tube (67) and the outer tube (68). The outer tube (68) is press-fitted in the lower housing (37). The inner tube (67) is press-fitted to an inner periphery (72) of a lower portion (71) of the sensor housing (34), whereby the inner tube (67) has a reduced diameter. As a result, an outer ring (44) of the upper bearing (40) is tightly fitted and supported in the inner tube (67).
摘要翻译：电动助力转向系统（1）包括容纳扭矩传感器（20）的管状传感器壳体（34），容纳减速机构（24）的齿轮箱（32）和上轴承（40）和在所述减速机构（24）的相对侧可转动地支撑转向轴（3）的下轴承（41）。齿轮壳体（32）包括支撑下轴承（41）的管状下壳体（37）和上壳体（36）。上壳体（36）包括内管（67），外管（68）和连接内管（67）和外管（68）的环形连接壁（69）。外管（68）压配合在下壳体（37）中。内管（67）压配合到传感器壳体（34）的下部（71）的内周（72），由此内管（67）的直径减小。结果，上轴承（40）的外圈（44）紧密配合并支撑在内管（67）中。

9. 发明授权

US06925902B2 Worm speed change apparatus and electric power steering apparatus 失效
标题翻译：蜗轮变速装置和电动助力转向装置
公开(公告)号：US06925902B2
公开(公告)日：2005-08-09
申请号：US10259608
申请日：2002-09-30
申请人： Etsurou Kitami , Tomohiro Maekawa , Terukazu Nakajima
发明人： Etsurou Kitami , Tomohiro Maekawa , Terukazu Nakajima
IPC分类号： B62D5/04 , F16H1/16
CPC分类号： F16H1/16 , B62D5/0409 , F16C33/581 , F16C2361/61 , F16H57/021 , F16H2057/0213 , Y10T74/18792 , Y10T74/19828
摘要： There is provided a worm speed change apparatus comprising a worm shaft and a worm wheel meshed therewith. Rolling elements are rotatably disposed between a raceway groove formed directly in at least one of end portions of the worm shaft, and a bearing outer ring held by a housing. The worm shaft is directly supported by the rolling elements.
摘要翻译：提供了一种蜗杆变速装置，其包括蜗杆轴和与其啮合的蜗轮。滚动元件可旋转地设置在直接形成在蜗杆轴的至少一个端部中的滚道槽与由壳体保持的轴承外圈之间。蜗杆轴直接由滚动元件支撑。

10. 发明授权

US06006854A Electric power steering apparatus 失效
标题翻译：电动助力转向装置
公开(公告)号：US06006854A
公开(公告)日：1999-12-28
申请号：US116085
申请日：1998-07-15
申请人： Terukazu Nakajima
发明人： Terukazu Nakajima
IPC分类号： B62D6/00 , B62D1/19 , B62D5/04 , B62D5/22 , B62D6/10 , B62D119/00
CPC分类号： B62D5/0409 , B62D1/192 , B62D6/10
摘要： An electric power steering apparatus which includes: an input shaft connected to a steering wheel; a torque sensor mechanism having a torque sensor which detects a steering torque on the basis of a relative displacement of the input shaft and the output shaft connected to the input shaft via a torsion bar; and a reduction mechanism which reduces a rotation of a steering assisting electric motor driven on the basis of a result detected by the torque sensor and transmits it to the output shaft. The torque sensor mechanism is arranged to the steering mechanism side from the reduction mechanism, so that an energy absorption stroke can be further made long without varying a mount point of the electric motor and a column mount length.
摘要翻译：一种电动助力转向装置，包括：与方向盘连接的输入轴; 扭矩传感器机构，其具有扭矩传感器，该转矩传感器基于通过扭杆连接到输入轴的输入轴和输出轴的相对位移来检测转向转矩; 以及减速机构，其根据由转矩传感器检测到的结果来驱动转向辅助电动机的旋转，并将其发送到输出轴。扭矩传感器机构从减速机构配置在转向机构侧，能够进一步使能量吸收行程长而不改变电动机的安装点和柱安装长度。

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