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公开(公告)号：US20120299442A1
公开(公告)日：2012-11-29
申请号：US13577040
申请日：2011-02-02
申请人： Takeshi Morita , Ryuichi Yoshida
发明人： Takeshi Morita , Ryuichi Yoshida
IPC分类号： H02N2/00
摘要： Disclosed is a drive device 1 which is adapted to move a driven member used on a speed difference between during extending and during contracting in a course of vibration of a vibrator. The vibrator, e.g., a piezoelectric element 4, 5, is formed in a structure which has two resonance modes identical in terms of a vibration direction, and allows a ratio between resonance frequencies of the two resonance modes to become approximately 2. A drive signal to be given to the vibrator is configured to approximately conform to the two resonance modes. The drive device 1 having the above configuration makes it possible to generate pseudo-sawtooth displacement vibration multiplied by an amplitude amplification factor Q through resonance, thereby improving a movement speed, and allow a larger part of input energy to be used for mechanical vibration, thereby improving energy efficiency.
摘要翻译： 公开了一种驱动装置1，其适于在振动器的振动过程中在延伸期间和收缩期间在速度差上使用的从动构件移动。 振动器，例如压电元件4,5形成为具有在振动方向上相同的两个共振模式的结构，并且允许两个谐振模式的谐振频率之间的比率变为约2.驱动信号 给予振动器的配置大致符合两种共振模式。 具有上述结构的驱动装置1使得可以通过共振产生乘以振幅放大系数Q的伪锯齿位移振动，从而提高移动速度，并且允许较大部分的输入能量用于机械振动，从而 提高能源效率。
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公开(公告)号：US09154055B2
公开(公告)日：2015-10-06
申请号：US13577040
申请日：2011-02-02
申请人： Takeshi Morita , Ryuichi Yoshida
发明人： Takeshi Morita , Ryuichi Yoshida
摘要： Disclosed is a drive device 1 which is adapted to move a driven member used on a speed difference between during extending and during contracting in a course of vibration of a vibrator. The vibrator, e.g., a piezoelectric element 4, 5, is formed in a structure which has two resonance modes identical in terms of a vibration direction, and allows a ratio between resonance frequencies of the two resonance modes to become approximately 2. A drive signal to be given to the vibrator is configured to approximately conform to the two resonance modes. The drive device 1 having the above configuration makes it possible to generate pseudo-sawtooth displacement vibration multiplied by an amplitude amplification factor Q through resonance, thereby improving a movement speed, and allow a larger part of input energy to be used for mechanical vibration, thereby improving energy efficiency.
摘要翻译： 公开了一种驱动装置1，其适于在振动器的振动过程中在延伸期间和收缩期间在速度差上使用的从动构件移动。 振动器，例如压电元件4,5形成为具有在振动方向上相同的两个共振模式的结构，并且允许两个谐振模式的谐振频率之间的比率变为约2.驱动信号 给予振动器的配置大致符合两种共振模式。 具有上述结构的驱动装置1使得可以通过共振产生乘以振幅放大系数Q的伪锯齿位移振动，从而提高移动速度，并且允许较大部分的输入能量用于机械振动，从而 提高能源效率。
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公开(公告)号：US09188761B2
公开(公告)日：2015-11-17
申请号：US13013260
申请日：2011-01-25
CPC分类号： G02B7/021 , G02B6/4226 , G02B6/4228 , G02B6/4244 , G02B6/4251 , G02B27/00 , Y10T29/49826
摘要： An optical device includes: an optical component; a case air-sealed, and made of metal, the optical component being secured within the case; and a lens provided within the case, and positionally adjusted in consideration of a deformation of the case air-sealed, light emitted from the optical component passing through the lens or light traveling to the optical component passing through the lens.
摘要翻译： 光学装置包括：光学部件; 气密的壳体，由金属制成，光学部件固定在壳体内; 以及设置在壳体内的透镜，并且考虑到通过透镜的光学部件发射的光或透过透镜的光学部件的光发生的气密的壳体的变形而进行位置调整。
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公开(公告)号：US08033148B2
公开(公告)日：2011-10-11
申请号：US12312249
申请日：2007-11-08
IPC分类号： B60R25/02
CPC分类号： B60R21/05 , B60R25/0211 , B60R25/02153 , Y10T70/5664 , Y10T70/5956
摘要： A rod guide portion (5) is protruded on a frame body (4), and a lock rod (10) is disposed in the rod guide portion (5) so as to be freely movable between a locked position and an unlocked position. A guide-side weak portion (13) and a rod-side weak portion (14) are provided on the rod guide portion (5) and the lock rod (10), respectively. A deadlock mechanism (15A) is provided, which locks a tip end side of the lock rod (10), the tip end side being cut off at the rod-side weak portion (14), at a position at a point of time when the lock rod (10) is cut off when the rod guide portion (5) and the lock rod (10) are cut off at positions of the guide-side weak portion (13) and the rod-side guide portion (14). A lock position holding device (30) is provided, which does not move an upper rod portion (10a) located closer to a base end side of the lock rod (10) than the rod-side weak portion (14) thereof to the unlocked position when the rod guide portion (5) and the lock rod (10) are cut off at the guide-side weak portion (13) and the rod-side weak portion (14).
摘要翻译： 杆引导部分（5）突出在框体（4）上，锁杆（10）设置在杆引导部分（5）中，以在锁定位置和解锁位置之间自由移动。 引导侧弱部（13）和杆侧弱部（14）分别设置在杆引导部（5）和锁定杆（10）上。 设置有死锁机构（15A），该死锁机构（15A）锁定锁定杆（10）的前端侧，其末端侧在杆侧弱部（14）处被切断， 当导杆部分（5）和锁定杆（10）在导向侧弱部（13）和杆侧引导部分（14）的位置被切断时，锁定杆（10）被切断。 提供了一种锁定位置保持装置（30），其不使位于锁定杆（10）的基端侧的上杆部（10a）比其杆侧弱部（14）更靠近解锁 当引导部分（5）和锁定杆（10）在引导侧弱部（13）和杆侧弱部（14）处被切断时的位置。
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公开(公告)号：US07969063B2
公开(公告)日：2011-06-28
申请号：US12524201
申请日：2008-01-07
申请人： Ryuichi Yoshida
发明人： Ryuichi Yoshida
CPC分类号： H02N2/067 , C08G2650/04 , H02N2/025
摘要： A driver, including: a piezoelectric element extending and contracting upon application of an electrical voltage; a driving member having one end secured to the piezoelectric element; a frictionally coupling member, frictionally coupling the driving member; and a drive circuit, connected with a power supply to activate the piezoelectric element at a predetermined period, including: a charge switching element for connecting an electrode of the piezoelectric element with the power supply, a discharge switching element, and a protective resistor arranged in an electric path between the power supply and the piezoelectric element or between the piezoelectric element and a ground point, wherein a resistance value of the protective resistor is set larger than an ON resistance of the switching element but smaller than a value obtained by dividing one half of the drive period of the switching element by a capacitance of the piezoelectric element, in a predetermined period.
摘要翻译： 一种驱动器，包括：施加电压时延伸和收缩的压电元件; 驱动构件，其一端固定在压电元件上; 摩擦联接构件，摩擦地联接所述驱动构件; 以及驱动电路，与电源连接以在预定时间段激活压电元件，包括：用于将压电元件的电极与电源连接的充电开关元件，放电开关元件和布置在其中的保护电阻器 电源和压电元件之间或压电元件与接地点之间的电路，其中保护电阻器的电阻值设定为大于开关元件的导通电阻，但小于通过将一半分压得到的值 的开关元件的驱动周期通过压电元件的电容。
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公开(公告)号：US07705516B2
公开(公告)日：2010-04-27
申请号：US12082460
申请日：2008-04-10
IPC分类号： H01L41/09
摘要： It is provided a drive unit 1 in which the displacement amount of the frictional engagement member 7 can be reduced without lowering the driving torque, having a drive circuit 4 comprised of a bridge circuit which includes charge switching elements Q1, Q3 for connecting the electrodes 5a, 5b of the piezoelectric element 5 to the power supply 2 and discharge switching elements Q2, Q4 for connecting the electrodes 5a, 5b to ground, and a switch circuit 9 for inserting a limiting resistor R2 in at least either one of an current path between the power supply 2 and the piezoelectric element 5 and an current path between the piezoelectric element 5 and the ground.
摘要翻译： 提供了一种驱动单元1，其中可以减小摩擦接合构件7的位移量而不降低驱动扭矩，该驱动单元具有包括桥接电路的驱动电路4，该桥接电路包括用于连接电极5a的充电开关元件Q1，Q3 压电元件5的5b，以及用于将电极5a，5b连接到地的放电开关元件Q2，Q4，以及用于将限制电阻R2插入到电极5a，5b之间的电流路径中的至少一个的开关电路9， 电源2和压电元件5以及压电元件5与地之间的电流路径。
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公开(公告)号：US20080252173A1
公开(公告)日：2008-10-16
申请号：US12082460
申请日：2008-04-10
摘要： It is provided a drive unit 1 in which the displacement amount of the frictional engagement member 7 can be reduced without lowering the driving torque, having a drive circuit 4 comprised of a bridge circuit which includes charge switching elements Q1, Q3 for connecting the electrodes 5a, 5b of the piezoelectric element 5 to the power supply 2 and discharge switching elements Q2, Q4 for connecting the electrodes 5a, 5b to ground, and a switch circuit 9 for inserting a limiting resistor R2 in at least either one of an current path between the power supply 2 and the piezoelectric element 5 and an current path between the piezoelectric element 5 and the ground.
摘要翻译： 设置有驱动单元1，其中可以减小摩擦接合构件7的位移量而不降低驱动扭矩，该驱动单元具有驱动电路4，该驱动电路4包括桥接电路，桥式电路包括用于连接的电荷开关元件Q 1，Q 3 将压电元件5的电极5a，5b连接到电源2以及用于将电极5a，5b连接到地的放电开关元件Q 2，Q 4以及用于将限制电阻器R 2插入的开关电路9 电源2和压电元件5之间的电流路径中的至少一个以及压电元件5与地之间的电流路径。
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公开(公告)号：US07315164B2
公开(公告)日：2008-01-01
申请号：US11342408
申请日：2006-01-30
申请人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
发明人： Yoshiaki Hata , Kazumi Sugitani , Ryuichi Yoshida , Shuichi Fujii , Hideaki Nakanishi , Takayuki Hoshino , Hirohisa Sueyoshi
IPC分类号： G01B7/14
摘要： A drive unit in accordance with the present invention is provided with a magnetic field generating member generating a magnetic field, a magnetic field detecting device constituted by first, second and third magnetic field detecting elements detecting the magnetic field, and a piezoelectric actuator moving the magnetic field generating member. When executing a relative positioning between the magnetic field generating member and the magnetic field detecting device on the basis of a detection result by the magnetic field detecting device, a first positioning is executed on the basis of the detection result of the first and second magnetic field detecting elements in a predetermined region, and a second positioning is executed on the basis of the detection result of the third magnetic field detecting element at a predetermined point apart from the predetermined region, within a movable range in which the magnetic field generating member moves. In accordance with the structure, it is possible to position the movable body at a high precision, even in the case that a plurality of position detecting points of the movable body of the drive unit exist at a wide interval.
摘要翻译： 根据本发明的驱动单元设置有产生磁场的磁场产生构件，由检测磁场的第一，第二和第三磁场检测元件构成的磁场检测装置，以及将磁性元件移动的压电致动器 场产生部件。 基于磁场检测装置的检测结果，在磁场产生部件和磁场检测装置之间进行相对定位时，基于第一和第二磁场的检测结果执行第一定位 在预定区域内检测元件，并且在磁场产生构件移动的可移动范围内，基于第三磁场检测元件在与预定区域相隔的预定点处的检测结果来执行第二定位。 根据该结构，即使在驱动单元的可动体的多个位置检测点以大的间隔存在的情况下，也可以高精度地定位移动体。
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9.发明授权Drive mechanism and drive method employing circuit for generating saw-tooth waveform voltage 有权驱动机构和驱动方法采用电路产生锯齿波形电压公开(公告)号：US06815871B2
公开(公告)日：2004-11-09
申请号：US10266706
申请日：2002-10-09
申请人： Tomoyuki Yuasa , Ryuichi Yoshida
发明人： Tomoyuki Yuasa , Ryuichi Yoshida
IPC分类号： H01L4108
摘要： An actuator using a piezoelectric element. The actuator includes: the piezoelectric element, which is capacitive; an inductor; and a resistor. The piezoelectric element, the inductor and the resistor are serially arranged so as to define a serial circuit. When a suitable voltage is supplied to the serial circuit, a saw-tooth waveform voltage is applied to the piezoelectric element so that the piezoelectric element extends at a speed and compresses at a different speed repeatedly.
摘要翻译： 使用压电元件的致动器。 致动器包括：电容性的压电元件; 电感; 和电阻。 压电元件，电感器和电阻器被串联布置以便限定串联电路。 当将合适的电压提供给串联电路时，锯齿波形电压被施加到压电元件，使得压电元件以一定速度延伸并以不同的速度重复地压缩。
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公开(公告)号：US06528926B2
公开(公告)日：2003-03-04
申请号：US10001428
申请日：2001-10-30
申请人： Yasuhiro Okamoto , Ryuichi Yoshida , Akira Kosaka
发明人： Yasuhiro Okamoto , Ryuichi Yoshida , Akira Kosaka
IPC分类号： H02N204
CPC分类号： H02N2/025
摘要： A driving apparatus enjoying improved performance through the prevention of fluctuations in the driving characteristic, wherein a driven member, which is frictionally engaged with a driving member fixed to an electromechanical conversion element, is driven based on driving that is not symmetrical as to the timing of extension and contraction of the electromechanical conversion element, and wherein the electromechanical conversion element is elastically held by the housing.
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