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1. 发明授权

US08020454B2 Torque detection device and electric power steering apparatus using the same 有权
标题翻译：转矩检测装置和使用该转矩检测装置的电动助力转向装置
公开(公告)号：US08020454B2
公开(公告)日：2011-09-20
申请号：US12088255
申请日：2006-09-27
申请人： Toshiharu Ishihara , Yoshitomo Tokumoto , Sinji Hakamata , Kaname Joushita , Tomoharu Horiuchi , Noriyuki Yahata , Naoki Nakane
发明人： Toshiharu Ishihara , Yoshitomo Tokumoto , Sinji Hakamata , Kaname Joushita , Tomoharu Horiuchi , Noriyuki Yahata , Naoki Nakane
IPC分类号： G01L3/00
CPC分类号： B62D6/10 , G01L3/104
摘要： A torque detection device has a magnetic flux collecting ring, arranged outside an outer periphery of a magnetic circuit forming member which is provided in a rotating body applied with a torque, for collecting a magnetic flux generated by the magnetic circuit forming member; a detector for detecting the torque applied to the rotating body based on a density of the magnetic flux collected by the magnetic flux collecting ring; and a holding ring for holding the magnetic flux collecting ring and the detector and including an attachment part to be attached to a stationary object on an outer periphery on one side in a radial direction. An attachment-preventing convex part for preventing attachment to the stationary object by contacting the stationary object is formed on one end face in an axis line direction of the holding ring.
摘要翻译：扭矩检测装置具有：磁通收集环，其设置在设置在施加扭矩的旋转体中的磁路形成部件的外周侧，用于收集由所述磁路形成部件产生的磁通量; 检测器，用于根据由磁通收集环收集的磁通的密度来检测施加到旋转体的转矩; 以及用于保持磁集合环和检测器的保持环，并且在径向方向上的一侧的外周上包括要附接到静止物体的附接部。在保持环的轴线方向的一个端面上形成有用于防止通过接触静止物体而与固定物体附接的防止附着的凸部。

2. 发明申请

US20100147620A1 TORQUE DETECTION DEVICE AND ELECTRIC POWER STEERING APPARATUS USING THE SAME 有权
标题翻译：使用扭矩检测装置和电动转向装置
公开(公告)号：US20100147620A1
公开(公告)日：2010-06-17
申请号：US12088255
申请日：2006-09-27
申请人： Toshiharu Ishihara , Yoshitomo Tokumoto , Shinji Hakamata , Kaname Joushita , Tomoharu Horiuchi , Noriyuki Yahata , Naoki Nakane
发明人： Toshiharu Ishihara , Yoshitomo Tokumoto , Shinji Hakamata , Kaname Joushita , Tomoharu Horiuchi , Noriyuki Yahata , Naoki Nakane
IPC分类号： B62D5/04 , G01L3/10
CPC分类号： B62D6/10 , G01L3/104
摘要： A torque detection device has a magnetic flux collecting ring, arranged outside an outer periphery of a magnetic circuit forming member which is provided in a rotating body applied with a torque, for collecting a magnetic flux generated by the magnetic circuit forming member; a detector for detecting the torque applied to the rotating body based on a density of the magnetic flux collected by the magnetic flux collecting ring; and a holding ring for holding the magnetic flux collecting ring and the detector and including an attachment part to be attached to a stationary object on an outer periphery on one side in a radial direction. An attachment-preventing convex part for preventing attachment to the stationary object by contacting the stationary object is formed on one end face in an axis line direction of the holding ring.
摘要翻译：扭矩检测装置具有：磁通收集环，其设置在设置在施加扭矩的旋转体中的磁路形成部件的外周侧，用于收集由所述磁路形成部件产生的磁通量; 检测器，用于根据由磁通收集环收集的磁通的密度来检测施加到旋转体的转矩; 以及用于保持磁集合环和检测器的保持环，并且在径向方向上的一侧的外周上包括要附接到静止物体的附接部。在保持环的轴线方向的一个端面上形成有用于防止通过接触静止物体而与固定物体附接的防止附着的凸部。

3. 发明申请

US20050223820A1 Torque detecting apparatus and manufacturing method thereof 有权
标题翻译：转矩检测装置及其制造方法
公开(公告)号：US20050223820A1
公开(公告)日：2005-10-13
申请号：US11100463
申请日：2005-04-07
申请人： Tetsuya Murakami , Takeshi Izumi , Yoshitomo Tokumoto , Takashi Kaoku , Norio Nakatani , Toshiharu Ishihara , Naoki Nakane
发明人： Tetsuya Murakami , Takeshi Izumi , Yoshitomo Tokumoto , Takashi Kaoku , Norio Nakatani , Toshiharu Ishihara , Naoki Nakane
IPC分类号： G01L3/10 , G01L3/02
CPC分类号： G01L5/221 , G01L3/104
摘要： A detecting unit for detecting a torque applied to a rotor according to rotation of the rotor having an input shaft and an output shaft connected with each other by a torsion bar and a detection circuit board connected with the detecting unit are molded with synthetic resin material to form a mold member. The installation of the mold member into a housing, which has a cylinder portion to surround the rotor and a retainer having an opening formed at the peripheral wall of the cylinder portion, is achieved by inserting the mold member into the retainer from the radial direction through the opening of the retainer.
摘要翻译：检测单元，用于根据具有输入轴和输出轴的转子的旋转来检测施加到转子的转矩，所述转子和输出轴通过扭杆和与检测单元连接的检测电路板彼此连接，用合成树脂材料模制成形成模具构件。将模具部件安装到具有围绕转子的圆筒部分的壳体和具有形成在圆筒部分的周壁上的开口的保持器中，通过将模具部件从径向方向通过保持架的开口。

4. 发明申请

US20090057051A1 Torque Detecting Device and Electric Power Steering Apparatus Using the Same 有权
标题翻译：扭矩检测装置及使用其的电动转向装置
公开(公告)号：US20090057051A1
公开(公告)日：2009-03-05
申请号：US11992829
申请日：2006-09-27
申请人： Toshiharu Ishihara , Yoshitomo Tokumoto , Naoki Nakane
发明人： Toshiharu Ishihara , Yoshitomo Tokumoto , Naoki Nakane
IPC分类号： B62D5/04
CPC分类号： B62D6/10 , G01L3/104
摘要： There is provided a torque detecting device including: magnetic flux concentrating rings which locate on a magnetic circuit forming member provided in a rotating body to which a torque is exerted, the rings concentrating a magnetic flux generated by the member, a detecting part which detects the torque to the rotating body based on a density of the magnetic flux concentrated by the rings; and a holding ring which holds the magnetic flux concentrating rings and the detecting part and includes an attachment portion attaching to a stationary substance, on a circumference of the holding ring. Both end faces of the holding ring in an axial direction of the holding ring are substantially parallel. The attachment portion includes a fitting groove into which a sealing ring, which seals a gap between the attachment portion and the stationary substance fits.
摘要翻译：提供了一种扭矩检测装置，包括：磁通集中环，其位于设置在施加扭矩的旋转体中的磁路形成部件上，所述环集中由所述部件产生的磁通量，检测部件基于由环集中的磁通量的密度对旋转体的扭矩; 以及保持环，该保持环保持磁集中环和检测部，并且在保持环的圆周上包括附接到固定物质的附接部。保持环的两个端面在保持环的轴向方向上基本上平行。附接部分包括一个装配槽，密封环密封在该装配槽中，该密封环密封安装部分和固定物质之间的间隙。

5. 发明授权

US07415899B2 Torque detecting apparatus 失效
标题翻译：转矩检测装置
公开(公告)号：US07415899B2
公开(公告)日：2008-08-26
申请号：US11569204
申请日：2005-05-13
申请人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
发明人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
IPC分类号： G01L3/02
CPC分类号： G01L3/104
摘要： The number n of N-poles and S-poles circumferentially aligned on the cylindrical magnet that integrally rotates with the first shaft is determined so as to be a greatest integer that satisfies the following formula that includes a maximum value Tmax (Nm) of the torque to be detected and a torsion spring constant k (Nm/deg) of the torsion bar connecting the first shaft and the second shaft: 2·n·Tmax/k
摘要翻译：确定在与第一轴一体旋转的圆柱形磁体上圆周对准的N极和S极的数量n为满足下列公式的最大整数，其包括最大值T max = 要检测的扭矩的SUB（Nm）和连接第一轴和第二轴的扭力杆的扭转弹簧常数k（Nm / deg）：2.nT / k <360 。圆柱形磁体包括齿形部分，其中对应于N极和S极的部分是突出形状，使得磁性粉尘的粘附集中在突出部分处。因此，提供了一种降低磁粉附着力的扭矩检测装置，从而获得更高的检测灵敏度，从而提高检测精度，而不会增加成本。

6. 发明授权

US07415898B2 Torque detecting apparatus and electric power steering apparatus 有权
标题翻译：转矩检测装置和电动助力转向装置
公开(公告)号：US07415898B2
公开(公告)日：2008-08-26
申请号：US11193854
申请日：2005-07-29
申请人： Toshiharu Ishihara , Takeshi Izumi , Yoshitomo Tokumoto , Taisuke Tsujimoto , Naoki Nakane
发明人： Toshiharu Ishihara , Takeshi Izumi , Yoshitomo Tokumoto , Taisuke Tsujimoto , Naoki Nakane
IPC分类号： G01L3/10
CPC分类号： B62D6/10 , G01L3/104 , G01L5/221
摘要： A torque detecting apparatus according to the present invention includes a first shaft and a second shaft connected coaxially to each other through a connecting shaft, a permanent magnet fixed to the first shaft, a plurality of soft magnetic members having a collar provided therein, fitted by pressing with the second shaft and disposed in a magnetic field of the permanent magnet to form a magnetic circuit, and a detector for detecting magnetic flux generated from the soft magnetic members, wherein the soft magnetic members are integrally molded with a mold body made of synthetic resin, and when a torque is applied to the first shaft or the second shaft, the torque is detected based on an output of the detector. The collar is made of a non-magnetic material.
摘要翻译：根据本发明的扭矩检测装置包括通过连接轴彼此同轴连接的第一轴和第二轴，固定到第一轴的永磁体，具有设置在其中的轴环的多个软磁性构件，其被安装在与第二轴按压并设置在永磁体的磁场中以形成磁路，以及检测器，用于检测从软磁体产生的磁通量，其中软磁体与由合成的模具体整体模制树脂，并且当向第一轴或第二轴施加扭矩时，基于检测器的输出来检测扭矩。套环由非磁性材料制成。

7. 发明申请

US20070186694A1 TORQUE DETECTION DEVICE AND MAGNET FIXING METHOD 审中-公开
标题翻译：扭矩检测装置和磁铁固定方法
公开(公告)号：US20070186694A1
公开(公告)日：2007-08-16
申请号：US11620921
申请日：2007-01-08
申请人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
发明人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
IPC分类号： G01L3/00
CPC分类号： G01L3/104
摘要： An inventive torque detection device includes: a magnetic circuit forming member having a tubular magnet provided at an outer circumferential portion of a first rotating body, and a magnetic ring that is located circumferentially of the tubular magnet and rotated together with a second rotating body connected to the first rotating body; a magnetic flux collecting ring part for collecting a magnetic flux generated by the magnetic circuit forming member; and a detection part for detecting, based on a density of the magnetic flux collected by the magnetic flux collecting ring part, a torque applied to the first or second rotating body, wherein the tubular magnet is formed by curing and magnetizing a synthetic resin, into which a magnetic powder is mixed, around the outer circumferential portion of the first rotating body.
摘要翻译：本发明的扭矩检测装置包括：磁路形成部件，其具有设置在第一旋转体的外周部的管状磁体和位于管状磁体周向的磁环，并与与第二旋转体连接的第二旋转体一起旋转第一旋转体; 用于收集由磁路形成构件产生的磁通的磁通收集环部分; 以及检测部，其基于由所述磁通收集环部收集的磁通的密度，检测施加到所述第一或第二旋转体的扭矩，其中，所述管状磁体通过使合成树脂固化并磁化而形成为在第一旋转体的外周部附近混合有磁性粉末。

8. 发明申请

US20070186693A1 TORQUE DETECTING APPARATUS 失效
标题翻译：扭矩检测装置
公开(公告)号：US20070186693A1
公开(公告)日：2007-08-16
申请号：US11569204
申请日：2005-05-13
申请人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
发明人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
IPC分类号： G01L3/00
CPC分类号： G01L3/104
摘要： The number n of N-poles and S-poles circumferentially aligned on the cylindrical magnet that integrally rotates with the first shaft is determined so as to be a greatest integer that satisfies the following formula that includes a maximum value Tmax (Nm) of the torque to be detected and a torsion spring constant k (Nm/deg) of the torsion bar connecting the first shaft and the second shaft: 2·n·Tmax /k
摘要翻译：确定在与第一轴一体旋转的圆柱形磁体上圆周对准的N极和S极的数量n为满足下列公式的最大整数，其包括最大值T max = 要检测的扭矩的SUB（Nm）和连接第一轴和第二轴的扭力杆的扭转弹簧常数k（Nm / deg）：2.nT / k <360 。圆柱形磁体包括齿形部分，其中对应于N极和S极的部分是突出形状，使得磁性粉尘的粘附集中在突出部分处。因此，提供了一种降低磁粉附着力的扭矩检测装置，从而获得更高的检测灵敏度，从而提高检测精度，而不会增加成本。

9. 发明申请

US20060156834A1 Torque detecting apparatus 有权
标题翻译：转矩检测装置
公开(公告)号：US20060156834A1
公开(公告)日：2006-07-20
申请号：US11332714
申请日：2006-01-13
申请人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
发明人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
IPC分类号： G01L3/10
CPC分类号： G01L3/104
摘要： In a torque detecting apparatus, in each of two flux concentrating rings, a portion along a circumferential direction is raised outward in a radial direction so that a flux concentrating section is provided that has a plate shape extending on one side in an axial direction. These flux concentrating rings are fixedly arranged such that the flux concentrating sections should oppose to each other in the circumferential direction with a predetermined gap in between. Leakage flux between opposing surfaces of the flux concentrating sections is detected by magnetic sensors aligned in an axial direction between these opposing surfaces. This improves the utilization of materials for the flux concentrating rings including the flux concentrating sections, and hence reduces the product cost.
摘要翻译：在扭矩检测装置中，在两个集流环中的每一个中，沿圆周方向的一部分沿径向向外凸出，从而设置具有在轴向一侧延伸的板状的通量集中部。这些集流环被固定地布置成使得通量集中部分在圆周方向上彼此相对，并且在其间具有预定的间隙。通过在这些相对的表面之间沿轴向对准的磁性传感器来检测通量集中部分的相对表面之间的泄漏通量。这提高了包括通量浓缩部分的通量集中环的材料的利用率，因此降低了产品成本。

10. 发明授权

US07533583B2 Torque detecting apparatus 失效
标题翻译：转矩检测装置
公开(公告)号：US07533583B2
公开(公告)日：2009-05-19
申请号：US11569227
申请日：2005-05-16
申请人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
发明人： Yoshitomo Tokumoto , Toshiharu Ishihara , Naoki Nakane
IPC分类号： G01L3/02
CPC分类号： G01L3/104
摘要： Magnetic pole nails 51, 51 . . . aligned on magnetic yokes 5, 5 that integrally rotate with the second shaft 2 are formed in a rectangular shape, and the circumferential width and alignment pitch of the magnetic pole nails 51, 51 . . . are appropriately determined with respect to the magnetization pitch of the N-poles 40, 40 . . . and the S-poles 41, 41 . . . circumferentially aligned on the cylindrical magnet 4 that integrally rotates with the first shaft 1, so that a variation in magnetic flux generated on the magnetic yoke 5, 5 in accordance with the relative displacement between the cylindrical magnet 4 and the magnetic yoke 5, 5 uniformly takes place in a larger amplitude. Thus, a torque detecting apparatus that achieves higher detection accuracy with a simple structure can be provided.
摘要翻译：磁极钉51,51。。。与第二轴2一体旋转的磁轭5,5形成为矩形，磁极钉51,51的周向宽度和取向间距。。。相对于N极40,40的磁化间距适当确定。。。和S极41,41。。。在与第一轴1一体旋转的圆筒形磁体4上周向对准，使得根据圆柱形磁体4和磁轭5之间的相对位移5在磁轭5,5上产生的磁通量的变化均匀发生在更大的幅度。因此，可以提供以简单结构实现更高检测精度的扭矩检测装置。

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