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公开(公告)号：US11821497B2
公开(公告)日：2023-11-21
申请号：US17604725
申请日：2020-03-17
Applicant: THK CO., LTD.
Inventor： Yuji Kubota , Yoshinobu Moriyuki
CPC classification number: F16H25/2214 , F16H25/24
Abstract: A preload detectable screw device is provided which can detect preload with accuracy and can reduce the influence of generated heat on the output of a sensor. A screw device (1) includes a screw shaft (2), a nut member (3), a plurality of rolling elements (7, 8), at least one axial strain sensor (24) (B, D) that is attached to a surface of the nut member (3) and detects strain in an axial direction on the nut member (3), and at least one circumferential strain sensor (24) (A, C) that is attached to the surface of the nut member (3) and detects strain in a circumferential direction on the nut member (3). Preload of the screw device (1) is detected on the basis of outputs of the axial strain sensor (24) (B, D) and the circumferential strain sensor (24) (A, C).
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公开(公告)号：US20160084676A1
公开(公告)日：2016-03-24
申请号：US14786265
申请日：2014-05-08
Applicant: THK CO., LTD
Inventor： Yoshinobu Moriyuki , Hiroshi Kaneshige
IPC: G01D5/165
CPC classification number: G01D5/165 , G01D5/244 , G01D5/2457
Abstract: A linear encoder device (60) includes: a synchronization signal generation unit (83) configured to generate a periodic synchronization signal synchronized with a movement distance when a first sensor (66) installed to face a linear scale (61) is moved along the linear scale (61) based on a signal output by the first sensor (66); a reference signal generation unit (82) configured to generate a pulse signal indicating that the reference mark is detected based on a signal output by a second sensor (67) installed along with the first sensor (66); and a reference position detection unit (84) configured to generate a reference position signal indicating that a reference position decided in advance is detected when the synchronization signal is changed to a predetermined value after the reference signal generation unit (82) generates the pulse signal.
Abstract translation: 线性编码器装置（60）包括：同步信号生成单元（83），被配置为当安装成面向线性刻度（61）的第一传感器（66）沿线性移动时，产生与移动距离同步的周期性同步信号 基于由第一传感器（66）输出的信号的刻度（61）; 参考信号生成单元（82），被配置为基于由与所述第一传感器（66）一起安装的第二传感器（67）输出的信号生成表示所述参考标记的脉冲信号; 以及参考位置检测单元，被配置为当所述参考信号生成单元产生所述脉冲信号之后，当所述同步信号改变为预定值时，生成指示预先确定的参考位置被检测到的参考位置信号。
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公开(公告)号：US09581204B2
公开(公告)日：2017-02-28
申请号：US14915745
申请日：2014-09-03
Applicant: THK CO., LTD.
Inventor： Akimasa Yoshida , Hiroshi Kaneshige , Takuya Horie , Tetsuya Sakagami , Yoshinobu Moriyuki , Teruaki Ooka
CPC classification number: F16C41/007 , F16C29/005 , F16C29/06 , F16C29/0602 , F16C29/065 , F16C29/08 , F16C29/082 , F16C41/00
Abstract: A magnetic-scale-equipped motion guide apparatus is provided which can scrape iron powder adhered to a magnetic scale by a scraper or seal of a movable member without inviting adverse effects such as wearing away and deformation of the magnetic scale. The magnetic-scale-equipped motion guide apparatus of the present invention comprises a track member 1 having a rolling element rolling portion 1b and also an upper surface where through holes 18 into which fastening members are inserted open, a movable member 2 movably assembled to the track member 1 via a plurality of rolling elements 3, a groove 1a formed in the track member 1 and extended in a longitudinal direction, a magnetic scale 7 accommodated in the groove 1a and having north and south poles alternately formed in the longitudinal direction, and a cover member 8 that covers the magnetic scale 7 and also the through holes 18 of the track member 1.
Abstract translation: 本发明提供了一种具有磁力的运动引导装置，其可以通过可移动部件的刮刀或密封件来刮擦附着到磁性刻度上的铁粉，而不会引起诸如磁性标尺的磨损和变形的不利影响。 本发明的带有磁力的运动导向装置包括具有滚动元件滚动部分1b的轨道部件1以及其中紧固件插入的通孔18的上表面，可动构件2可移动地组装到 轨道构件1经由多个滚动元件3形成，形成在轨道构件1中并沿纵向延伸的槽1a，容纳在槽1a中并且沿纵向方向交替形成的北极和南极的磁标尺7，以及 覆盖磁性标尺7的盖构件8以及轨道构件1的通孔18。
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公开(公告)号：US09518842B2
公开(公告)日：2016-12-13
申请号：US14786265
申请日：2014-05-08
Applicant: THK CO., LTD.
Inventor： Yoshinobu Moriyuki , Hiroshi Kaneshige
CPC classification number: G01D5/165 , G01D5/244 , G01D5/2457
Abstract: A linear encoder device (60) includes: a synchronization signal generation unit (83) configured to generate a periodic synchronization signal synchronized with a movement distance when a first sensor (66) installed to face a linear scale (61) is moved along the linear scale (61) based on a signal output by the first sensor (66); a reference signal generation unit (82) configured to generate a pulse signal indicating that the reference mark is detected based on a signal output by a second sensor (67) installed along with the first sensor (66); and a reference position detection unit (84) configured to generate a reference position signal indicating that a reference position decided in advance is detected when the synchronization signal is changed to a predetermined value after the reference signal generation unit (82) generates the pulse signal.
Abstract translation: 线性编码器装置（60）包括：同步信号生成单元（83），被配置为当安装成面向线性刻度（61）的第一传感器（66）沿线性移动时，产生与移动距离同步的周期性同步信号 基于由第一传感器（66）输出的信号的刻度（61）; 参考信号生成单元（82），被配置为基于由与所述第一传感器（66）一起安装的第二传感器（67）输出的信号生成表示所述参考标记的脉冲信号; 以及参考位置检测单元，被配置为当所述参考信号生成单元产生所述脉冲信号之后，当所述同步信号改变为预定值时，生成指示预先确定的参考位置被检测到的参考位置信号。
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Patent Agency Ranking
公开(公告)号：US10591317B2
公开(公告)日：2020-03-17
申请号：US16084164
申请日：2017-02-16
Applicant: THK CO., LTD.
Inventor： Yoshinobu Moriyuki , Takashi Oshida
Abstract: Provided is an encoder device capable of reducing interference between a magnetic field generated in a reference mark and a magnetic field generated in a scale. An encoder device is provided with a reference mark and a head. The reference mark has: a first scale coil; and a second scale coil electrically connected to the first scale coil. The head has: a transmission coil that transmits an electromagnetic wave without any contact to the first scale coil; a reception coil that receives an electromagnetic wave without any contact from the second scale coil; and electric circuits that generate a pulse for generating an origin signal from the electromagnetic wave received by the reception coil, if the transmission coil faces the first scale coil and the reception coil faces the second scale coil.
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6.发明授权公开(公告)号：US10401198B2
公开(公告)日：2019-09-03
申请号：US15772279
申请日：2016-10-14
Applicant: THK CO., LTD.
Inventor： Shuhei Yamanaka , Yoshinobu Moriyuki , Takashi Oshida
IPC: G01D5/347 , G01D5/245 , F16C41/00 , G01B7/00 , F16C29/00 , G01D5/244 , G01D5/14 , F16C29/06 , F16C29/04
Abstract: A position detection apparatus is provided which eliminates the necessity of space to affix a scale to a track member. A track member of a motion guide apparatus is provided with a through hole into which a fastening member to fasten the track member to a base can be inserted. A carriage that is movably assembled to the track member via a rolling element is provided with magnets generating a magnetic field toward the track member. Magnetic sensors that detect a change in the magnetic fields of the magnets with the travel of the magnets relative to the track member are placed within the magnetic fields of the magnets.
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公开(公告)号：US10444302B2
公开(公告)日：2019-10-15
申请号：US16328958
申请日：2017-08-25
Applicant: THK CO., LTD.
Inventor： Yoshinobu Moriyuki
IPC: G01R33/07 , G01R33/038 , G01R33/00 , G01V3/10
Abstract: A foreign matter detecting device comprises a first yoke portion and a second yoke portion which adjoin a permanent magnet respectively. The both yoke portions are arranged while interposing a reference space therebetween. Further, a detour yoke portion is arranged. A magnetic resistance of the first detour space being smaller than a magnetic resistance of the predetermined reference space, and magnetic resistances of the second detour space and the first detour space being larger than the magnetic resistance of the predetermined reference space. A detection signal in relation to the foreign matter is outputted on the basis of a magnetic flux density provided in at least any one of spaces of the reference space and the first detour space, corresponding to an amount of retention of the foreign matter in a retaining portion which is provided so that the foreign matter is retained in the second detour space.
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公开(公告)号：US20190242953A1
公开(公告)日：2019-08-08
申请号：US16328958
申请日：2017-08-25
Applicant: THK CO., LTD.
Inventor： Yoshinobu Moriyuki
IPC: G01R33/07 , G01V3/10 , G01R33/00 , G01R33/038
CPC classification number: G01R33/07 , F16C19/52 , F16C29/06 , F16C41/00 , G01R33/0011 , G01R33/038 , G01V3/105
Abstract: A foreign matter detecting device comprises a first yoke portion and a second yoke portion which adjoin a permanent magnet respectively. The both yoke portions are arranged while interposing a reference space therebetween. Further, a detour yoke portion is arranged. A magnetic resistance of the first detour space being smaller than a magnetic resistance of the predetermined reference space, and magnetic resistances of the second detour space and the first detour space being larger than the magnetic resistance of the predetermined reference space. A detection signal in relation to the foreign matter is outputted on the basis of a magnetic flux density provided in at least any one of spaces of the reference space and the first detour space, corresponding to an amount of retention of the foreign matter in a retaining portion which is provided so that the foreign matter is retained in the second detour space.
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公开(公告)号：US20160215825A1
公开(公告)日：2016-07-28
申请号：US14915745
申请日：2014-09-03
Applicant: THK CO., LTD.
Inventor： Akimasa Yoshida , Hiroshi Kaneshige , Takuya Horie , Tetsuya Sakagami , Yoshinobu Moriyuki , Teruaki Ooka
CPC classification number: F16C41/007 , F16C29/005 , F16C29/06 , F16C29/0602 , F16C29/065 , F16C29/08 , F16C29/082 , F16C41/00
Abstract: A magnetic-scale-equipped motion guide apparatus is provided which can scrape iron powder adhered to a magnetic scale by a scraper or seal of a movable member without inviting adverse effects such as wearing away and deformation of the magnetic scale. The magnetic-scale-equipped motion guide apparatus of the present invention comprises a track member 1 having a rolling element rolling portion 1b and also an upper surface where through holes 18 into which fastening members are inserted open, a movable member 2 movably assembled to the track member 1 via a plurality of rolling elements 3, a groove 1a formed in the track member 1 and extended in a longitudinal direction, a magnetic scale 7 accommodated in the groove 1a and having north and south poles alternately formed in the longitudinal direction, and a cover member 8 that covers the magnetic scale 7 and also the through holes 18 of the track member 1.
Abstract translation: 本发明提供了一种具有磁力的运动引导装置，其可以通过可移动部件的刮刀或密封件来刮擦附着到磁性刻度上的铁粉，而不会引起诸如磁性标尺的磨损和变形的不利影响。 本发明的带有磁力的运动导向装置包括具有滚动元件滚动部分1b的轨道部件1以及其中紧固件插入的通孔18的上表面，可动构件2可移动地组装到 轨道构件1经由多个滚动元件3形成，形成在轨道构件1中并沿纵向延伸的槽1a，容纳在槽1a中并且沿纵向方向交替形成的北极和南极的磁标尺7，以及 覆盖磁性标尺7的盖构件8以及轨道构件1的通孔18。
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