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1. 发明授权

US08421564B2 Electromagnetic actuator 有权
公开(公告)号：US08421564B2
公开(公告)日：2013-04-16
申请号：US12871492
申请日：2010-08-30
申请人： Hisashi Yajima , Nobuhiro Fujiwara
发明人： Hisashi Yajima , Nobuhiro Fujiwara
IPC分类号： H01F7/00
CPC分类号： H01F7/1646 , H02K41/0356
摘要： The electromagnetic actuator is a linear electromagnetic actuator in which the relative position between a slide table that supports permanent magnets thereon and a guide rail that supports a coil, which is arranged in confronting relation to the permanent magnets, is displaced by means of a thrust force generated by a current flowing through the coil. The coil is disposed on the guide rail through a low coercive force magnetizable material body, the coercive force of which is lower than a predetermined value. Consequently, generation of residual magnetization can be suppressed, and an influence on the thrust force caused by such residual magnetization can also be suppressed.

2. 发明申请

US20100134225A1 Linear Electromagnetic Actuator 有权
标题翻译：线性电磁执行器
公开(公告)号：US20100134225A1
公开(公告)日：2010-06-03
申请号：US12699820
申请日：2010-02-03
申请人： Hisashi Yajima , Nobuhiro Fujiwara
发明人： Hisashi Yajima , Nobuhiro Fujiwara
IPC分类号： H01F7/06
CPC分类号： H02K41/0356 , H02K7/08
摘要： First and second projections are formed to protrude toward a guide rail from both sides of a slide table. Third and fourth projections are formed to protrude toward the slide table from both sides of the guide rail. A plurality of balls are arranged in clearances between the first and second projections and the third and fourth projections.
摘要翻译：第一和第二突起形成为从滑动台的两侧向导轨突出。第三和第四突起形成为从导轨的两侧朝向滑台突出。多个球排列在第一和第二突起与第三和第四突起之间的间隙中。

3. 发明授权

US07210394B2 Method and apparatus for controlling air cylinder 有权
标题翻译：气缸控制方法及装置
公开(公告)号：US07210394B2
公开(公告)日：2007-05-01
申请号：US11142094
申请日：2005-06-02
申请人： Hisashi Yajima , Nobuhiro Fujiwara , Yoshiyuki Suzuki
发明人： Hisashi Yajima , Nobuhiro Fujiwara , Yoshiyuki Suzuki
IPC分类号： F15B9/09 , G05B19/19
CPC分类号： F15B21/08 , F15B11/042 , F15B11/044 , F15B2211/30565 , F15B2211/351 , F15B2211/353 , F15B2211/6313 , F15B2211/6336 , F15B2211/6656 , F15B2211/7053 , F15B2211/7656
摘要： A method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air cylinder by air servo valves. Pressures in the pressure chambers are detected by pressure sensors, signals of the detected pressures are feedback to a controller, and the degrees of opening of the air servo valves are adjusted by corresponding PID adjusters of the controller on the basis of the respective differences between instruction values and detection values. The displacement of the rod of the air cylinder is detected by a displacement sensor, and a detection signal of the displacement is fed back to the controller so that a gain of the PID adjuster is always changed in accordance with the detection signal of the displacement.
摘要翻译：一种用于控制气缸的方法，使得空气通过空气伺服阀供应到气缸的压力室并从其中排出。通过压力传感器检测压力室中的压力，将检测到的压力的信号反馈到控制器，并且通过控制器的相应PID调节器根据指令之间的相应差异来调整空气伺服阀的打开程度值和检测值。通过位移传感器检测气缸的杆的位移，并且将位移的检测信号反馈到控制器，使得PID调节器的增益总是根据位移的检测信号而改变。

4. 发明申请

US20060114090A1 Linear electromagnetic actuator 有权
标题翻译：线性电磁执行器
公开(公告)号：US20060114090A1
公开(公告)日：2006-06-01
申请号：US11285266
申请日：2005-11-23
申请人： Hisashi Yajima , Nobuhiro Fujiwara
发明人： Hisashi Yajima , Nobuhiro Fujiwara
IPC分类号： H01F7/08
CPC分类号： H02K41/0356 , H02K7/08
摘要： First and second projections are formed to protrude toward a guide rail from both sides of a slide table. Third and fourth projections are formed to protrude toward the slide table from both sides of the guide rail. A plurality of balls are arranged in clearances between the first and second projections and the third and fourth projections.
摘要翻译：第一和第二突起形成为从滑动台的两侧向导轨突出。第三和第四突起形成为从导轨的两侧朝向滑台突出。多个球排列在第一和第二突起与第三和第四突起之间的间隙中。

5. 发明申请

US20050012405A1 Linear actuator capable of low-speed driving 有权
标题翻译：具有低速行驶功能的线性执行机构
公开(公告)号：US20050012405A1
公开(公告)日：2005-01-20
申请号：US10890561
申请日：2004-07-12
申请人： Hisashi Yajima , Nobuhiro Fujiwara , Satoru Itou
发明人： Hisashi Yajima , Nobuhiro Fujiwara , Satoru Itou
IPC分类号： F16H49/00 , H01F7/13 , H01F7/16 , H01F7/18 , H02K33/02 , H02K41/03 , H02K41/00 , H01F1/00 , H02P1/00
CPC分类号： H02K41/03 , H01F7/13 , H01F7/1607 , H01F7/1844 , H02K33/02
摘要： Disclosed herein is a simple, inexpensive linear actuator which is capable of controlling the displacement of the movable body by regulating the amount of electric energy applied without the necessity of detecting the displacement of the movable body with a displacement sensor or controlling the displacement of the movable body by feedback control in response to the detected value. The linear actuator comprises an electromagnetic unit which generates magnetic force in response to the amount of electric energy applied, a movable body which is displaced linearly by magnetic force as thrust force which is supplied from the electromagnetic unit, a spring means which applies a spring force to the movable body in the direction opposite to the direction of said thrust force, and a control apparatus which controls the amount of electric energy to be applied to said electromagnetic unit, wherein said control apparatus is so constructed as to control the rate of displacement of said movable body in response to the amount of electric energy applied, with voltage or current applied to said electromagnetic unit varying from that which generates a thrust force balancing with said spring force.
摘要翻译：这里公开了一种简单，便宜的线性致动器，其能够通过调节施加的电能的量来控制可移动体的位移，而不需要使用位移传感器检测可移动体的位移，或者控制可移动体的位移通过响应于检测值的反馈控制。线性致动器包括响应于施加的电能产生磁力的电磁单元，作为从电磁单元提供的推力通过磁力线性移位的可移动体，施加弹簧力的弹簧装置在与所述推力方向相反的方向上设置在所述移动体上;以及控制装置，其控制向所述电磁单元施加的电能量，其特征在于，所述控制装置构成为控制所述移动体的位移速度所述可移动体响应于所施加的电能量，施加到所述电磁单元的电压或电流与产生与所述弹簧力平衡的推力变化。

6. 发明申请

US20060237268A1 Brake apparatus for linear motor and method for positioning movable section of linear motor 有权
标题翻译：线性电机制动装置及线性电机可动部分定位方法
公开(公告)号：US20060237268A1
公开(公告)日：2006-10-26
申请号：US11362173
申请日：2006-02-27
申请人： Hisashi Yajima , Nobuhiro Fujiwara
发明人： Hisashi Yajima , Nobuhiro Fujiwara
IPC分类号： B60L7/00
CPC分类号： H02K41/03 , H02K7/1026
摘要： When respective magnetic fluxes are generated by coils and pass through a plate spring, an electromagnetic force, which results from the magnetic flux, is generated within a plate spring, screws, and a magnetic flux-passing member. Therefore, a brake pad is separated from a slide table in accordance with an action of the electromagnetic force exerted against a resilient force of the plate spring. On the other hand, when generation of respective magnetic fluxes from the coils is halted, the electromagnetic force is extinguished, and thus the brake pad presses against the slide table, in accordance with an action of the resilient force of the plate spring.
摘要翻译：当通过线圈产生各自的磁通并通过板簧时，在板簧，螺杆和磁通量构件内产生由磁通产生的电磁力。因此，根据对板弹簧的弹力施加的电磁力的作用，制动片与滑动台分离。另一方面，当产生来自线圈的各个磁通量停止时，电磁力被消除，因此制动衬块根据板簧的弹力的作用将其压靠在滑动台上。

7. 发明申请

US20060037466A1 Method and apparatus for controlling air cylinder 有权
标题翻译：气缸控制方法及装置
公开(公告)号：US20060037466A1
公开(公告)日：2006-02-23
申请号：US11142094
申请日：2005-06-02
申请人： Hisashi Yajima , Nobuhiro Fujiwara , Yoshiyuki Suzuki
发明人： Hisashi Yajima , Nobuhiro Fujiwara , Yoshiyuki Suzuki
IPC分类号： F15B13/16
CPC分类号： F15B21/08 , F15B11/042 , F15B11/044 , F15B2211/30565 , F15B2211/351 , F15B2211/353 , F15B2211/6313 , F15B2211/6336 , F15B2211/6656 , F15B2211/7053 , F15B2211/7656
摘要： This invention improves response by preventing a steady-state difference and a disturbance from occurrence even when the volume of a pressure chamber of an air cylinder varies dramatically. In a method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air cylinder by air servo valves; pressures in the pressure chambers are detected by pressure sensors; signals of the detected pressures are feedback to a controller; and the degrees of opening of the air servo valves are adjusted by corresponding PID adjusters of the controller on the basis of the respective differences between instruction values and detection values, the displacement of the rod of the air cylinder is detected by a displacement sensor, and a detection signal of the displacement is fed back to the controller so that a gain of the PID adjuster is always changed in accordance with the detection signal of the displacement.
摘要翻译：本发明即使当气缸的压力室的体积急剧变化时，也可以通过防止稳态差异和干扰发生而改善响应。一种用于控制气缸的方法，使得空气通过空气伺服阀供应到气缸的压力室并从其中排出; 压力室中的压力由压力传感器检测; 检测压力的信号反馈给控制器; 并且根据控制器的相应的PID调节器根据指令值和检测值之间的差异来调节空气伺服阀的打开程度，通过位移传感器检测气缸的位移，并且将位移的检测信号反馈给控制器，使得PID调节器的增益总是根据位移的检测信号而改变。

8. 发明授权

US08174344B2 Linear electromagnetic actuator 有权
标题翻译：线性电磁执行器
公开(公告)号：US08174344B2
公开(公告)日：2012-05-08
申请号：US12699820
申请日：2010-02-03
申请人： Hisashi Yajima , Nobuhiro Fujiwara
发明人： Hisashi Yajima , Nobuhiro Fujiwara
IPC分类号： H01F7/08
CPC分类号： H02K41/0356 , H02K7/08
摘要： First and second projections are formed to protrude toward a guide rail from both sides of a slide table. Third and fourth projections are formed to protrude toward the slide table from both sides of the guide rail. A plurality of balls are arranged in clearances between the first and second projections and the third and fourth projections.
摘要翻译：第一和第二突起形成为从滑动台的两侧向导轨突出。第三和第四突起形成为从导轨的两侧朝向滑台突出。多个球排列在第一和第二突起与第三和第四突起之间的间隙中。

9. 外观设计

USD635165S1 Linear electromagnetic actuator 有权
标题翻译：线性电磁执行器
公开(公告)号：USD635165S1
公开(公告)日：2011-03-29
申请号：US29375468
申请日：2010-09-22
申请人： Hisashi Yajima , Tatsuya Hosaka , Takehiko Kanazawa , Nobuhiro Fujiwara
设计人： Hisashi Yajima , Tatsuya Hosaka , Takehiko Kanazawa , Nobuhiro Fujiwara

10. 发明申请

US20060285978A1 Fluid pressure cylinder with position detecting device 有权
公开(公告)号：US20060285978A1
公开(公告)日：2006-12-21
申请号：US11452942
申请日：2006-06-15
申请人： Hisashi Yajima , Nobuhiro Fujiwara
发明人： Hisashi Yajima , Nobuhiro Fujiwara
IPC分类号： F04B49/00
CPC分类号： F15B15/2884 , F15B15/2861
摘要： In a fluid pressure cylinder with a magnetostriction type position detecting device for detecting an operating position of a piston using the position detecting device, the fluid pressure cylinder is provided with a simple and rational design structure without providing it with a special conductive member as a current feedback conductor. In the fluid pressure cylinder with the magnetostriction type position detecting device having a permanent magnet attached to the piston and a magnetostrictive line accommodated in a hollow portion of a cylinder tube, the cylinder tube is formed of a non-magnetic conductive material, the magnetostrictive line composed of a ferromagnetic material is inserted into the hollow portion, and the extreme end of the magnetostrictive line is electrically connected to the cylinder tube through a support metal fitting, thereby the cylinder tube is also used as a current feedback conductor.

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