公开(公告)号：US4985623A

公开(公告)日：1991-01-15

申请号：US490389

申请日：1990-03-08

申请人： Souji Ichikawa ,  Hideki Oka ,  Naoyoshi Terao ,  Seiji Sakagami

发明人： Souji Ichikawa ,  Hideki Oka ,  Naoyoshi Terao ,  Seiji Sakagami

IPC分类号： G01D5/36

CPC分类号： G01D5/36

摘要： In an optical encoder using a collimated lighting system, an index scale is inclined toward a main scale by a predetermined value. With this arrangement, a component of variation in the detection signal due to variations in the grating gap can be offset or integrated to be removed from a geometric image of the first grating in the detection signal, whereby the dependence of an S/N ratio of the detection signal on the grating gap can be avoided.

公开(公告)号：US20060016089A1

公开(公告)日：2006-01-26

申请号：US11179663

申请日：2005-07-13

申请人： Hiroaki Kawada ,  Seiji Sakagami ,  Hiroatsu Mori

发明人： Hiroaki Kawada ,  Seiji Sakagami ,  Hiroatsu Mori

IPC分类号： B26D7/28

CPC分类号： G01D5/34707 ,  G01B3/004

摘要： A linear scale attachment device for holding and securely attaching a linear scale on an object to be measured is disclosed. The device includes an aluminum base formed with a holding groove having a larger opening than the width of a linear scale that is fitted in this groove, and a retainer for preventing the linear scale fitted in the holding groove from falling off. The base is permanently attached to the object at one location in the lengthwise direction, and resiliently attached at one or more other locations such as to be pressed in the X and Y directions using a cantilever plate spring. While using an aluminum base, the attachment device allows easy attachment and maintenance of the scale and relieves the effect of thermal stress caused by a difference in the thermal expansion coefficient between the aluminum base and the object.

摘要翻译： 公开了一种用于将线性刻度保持并牢固地附着在被测量物体上的线性刻度附着装置。 该装置包括形成有具有比安装在该槽中的线性标尺的宽度大的开口的保持槽的铝基座和用于防止装配在保持槽中的线性标尺脱落的保持器。 基座在长度方向的一个位置处永久地附接到物体，并且在一个或多个其它位置处弹性地附接，以便使用悬臂板簧在X和Y方向上被按压。 在使用铝基座的情况下，附接装置能够容易地附着和维持标尺，并且减轻由铝基体和物体之间的热膨胀系数的差异引起的热应力的影响。

公开(公告)号：US6082341A

公开(公告)日：2000-07-04

申请号：US136310

申请日：1998-08-19

申请人： Nobukatsu Arai ,  Seiji Sakagami ,  Tsutomu Okazaki ,  Tetsuo Udagawa

发明人： Nobukatsu Arai ,  Seiji Sakagami ,  Tsutomu Okazaki ,  Tetsuo Udagawa

IPC分类号： F02B33/42 ,  F02B37/16 ,  F02B37/18 ,  F02M25/07 ,  F04F13/00 ,  F04F99/00

CPC分类号： F02B33/42 ,  F02B37/16 ,  F02B37/18 ,  F02M26/17 ,  F02M26/19 ,  F02M26/70 ,  F02M26/71 ,  F02M26/06 ,  Y02T10/144

摘要： There is disclosed a supercharger for an engine in which intake air is increased in pressure by the use of exhaust gas flowed into the supercharger from the engine, and is fed to the engine. An impeller 2, having a plurality of blades formed on an outer peripheral portion thereof, is received within a casing 1, and a ring-like fluid passage is formed around the plurality of blades, and a first partition 3 and a second partition 4 are provided in the fluid passage to divide this fluid passage into two fluid passages, that is, an exhaust gas passage 6 and an intake air passage 9. There is provided a fluid machine construction for causing the exhaust gas of the engine to flow into and out of the exhaust gas passage, and for causing the intake air to flow into and out of the intake air passage. With this construction, the pressure of the intake air can be satisfactorily increased over a wide range of the engine speed from a low speed to a relatively high speed, and therefore the supercharging of the engine can be effected with the inexpensive machine construction.

摘要翻译： 公开了一种用于发动机的增压器，其中通过使用从发动机流入增压器的废气，进气增加压力，并且被供给到发动机。 具有形成在其外周部上的多个叶片的叶轮2被容纳在壳体1内，并且在多个叶片周围形成有环状的流路，第一分隔件3和第二分隔件4为 设置在流体通道中以将该流体通道分成两个流体通道，即废气通道6和进气通道9.提供了一种用于使发动机的排气流入和流出的流体机械结构 的排气通道，并且用于使进气进入和离开进气通道。 通过这种结构，在从低速到较高速度的发动机转速的宽范围内，进气的压力可以令人满意地增加，因此可以以廉价的机器结构实现发动机的增压。

公开(公告)号：US4983825A

公开(公告)日：1991-01-08

申请号：US490463

申请日：1990-03-08

申请人： Souji Ichikawa ,  Hideki Oka ,  Naoyoshi Terao ,  Seiji Sakagami

发明人： Souji Ichikawa ,  Hideki Oka ,  Naoyoshi Terao ,  Seiji Sakagami

IPC分类号： G01D5/36

CPC分类号： G01D5/36

摘要： In a reflection type encoder having a main scale and an index scale with first and second gratings, respectively, and using a diffusing light source, diffused rays from a point light source are focused by a condensing lens to produce a secondary point light source positioned on a plane defined by the second gratings of the index scale. With this arrangement, a collimator lens can be dispensed with, so that the encoder can be rendered compact in size. Furthermore, the respective elements can be easily supported and positioned.

公开(公告)号：US4377911A

公开(公告)日：1983-03-29

申请号：US235461

申请日：1981-02-18

申请人： Jynichi Iida ,  Seiji Sakagami

发明人： Jynichi Iida ,  Seiji Sakagami

IPC分类号： G01B5/20 ,  G01B7/28

CPC分类号： G01B7/28 ,  G01B5/20

摘要： A measuring instrument for measuring the contour of the outer surface of a workpiece. This measuring instrument is of such an arrangement that the tip end of a stylus solidly secured at one end of an arm adapted for rotational movement is brought into contact with the outer surface of the workpiece by a slight pressing force, the arm in this condition is moved in the axial direction thereof, and the displacement of the stylus tracing the irregularities of the outer surface of the workpiece to vertically move due to the abovedescribed movement is converted into the rotational movement of the arm, which is measured by measuring means such as a differential transformer, whereby the contour of the outer surface of the workpiece is measured from the vertical movement of the stylus and the axial (or horizontal) movement of the arm. The arm of the measuring instrument of this type has a dual construction adapted to be held in place by means of springs, wherein a mechanism for detecting the relative movement between these dual arms is provided, whereby a force exceeding a predetermined value applied to the stylus is detected, so that the breakage of the stylus, damages of the object to be measured and the like can be prevented.

摘要翻译： 用于测量工件外表面轮廓的测量仪器。 该测量仪器具有这样的结构，使得牢固地固定在适于旋转运动的臂的一端处的触针的尖端通过轻微的按压力与工件的外表面接触，在该状态下的臂是 沿其轴向方向移动，并且由于上述移动，跟踪工件的外表面的不规则性以使其垂直移动的触笔的位移被转换为臂的旋转运动，其通过诸如 差动变压器，从而根据触针的垂直运动和臂的轴向（或水平）运动来测量工件外表面的轮廓。 这种测量仪器的臂具有适于通过弹簧保持在适当位置的双重结构，其中提供用于检测这些双臂之间的相对运动的机构，由此超过施加到触针的预定值的力 可以防止触针的破损，被测定物的损坏等。

公开(公告)号：US07432497B2

公开(公告)日：2008-10-07

申请号：US11535783

申请日：2006-09-27

申请人： Seiji Sakagami ,  Mikiya Teraguchi

发明人： Seiji Sakagami ,  Mikiya Teraguchi

IPC分类号： G01D5/34 ,  G01D5/36 ,  H03M1/22 ,  G01B11/14 ,  G01B7/30

CPC分类号： G01D3/024 ,  G01D5/2497 ,  G01D5/34776

摘要： An absolute linear encoder includes a plurality of absolute scales aligned in the detection direction with absolute calibrations, a plurality of detectors for detecting the calibrations on the absolute scales, absolute position data generating portions of each scale for generating absolute position data of each detector, and a calculator for outputting an absolute position over the whole length of connected whole absolute scales adding the absolute position data of each detector and the distance between the detectors. The detectors are fixed at such intervals as to simultaneously detect the calibrations of the two absolute scales adjoining in a scale connecting section. Thus, the long absolute linear encoder which is easy to use is realized at low costs.

摘要翻译： 绝对线性编码器包括以绝对校准方式在检测方向上对齐的多个绝对刻度，用于检测绝对刻度上的校准的多个检测器，用于产生每个检测器的绝对位置数据的每个刻度的绝对位置数据产生部分，以及 用于输出连接的整个绝对刻度的整个长度上的绝对位置的计算器，添加每个检测器的绝对位置数据和检测器之间的距离。 检测器以这样的间隔固定，以便同时检测刻度连接部分中邻接的两个绝对刻度的校准。 因此，以低成本实现了易于使用的长绝对线性编码器。

公开(公告)号：US20070069117A1

公开(公告)日：2007-03-29

申请号：US11535783

申请日：2006-09-27

申请人： Seiji Sakagami ,  Mikiya Teraguchi

发明人： Seiji Sakagami ,  Mikiya Teraguchi

IPC分类号： G01D5/34

CPC分类号： G01D3/024 ,  G01D5/2497 ,  G01D5/34776

摘要： An absolute linear encoder includes a plurality of absolute scales aligned in the detection direction with absolute calibrations, a plurality of detectors for detecting the calibrations on the absolute scales, absolute position data generating portions of each scale for generating absolute position data of each detector, and a calculator for outputting an absolute position over the whole length of connected whole absolute scales adding the absolute position data of each detector and the distance between the detectors. The detectors are fixed at such intervals as to simultaneously detect the calibrations of the two absolute scales adjoining in a scale connecting section. Thus, the long absolute linear encoder which is easy to use is realized at low costs.

摘要翻译： 绝对线性编码器包括以绝对校准方式在检测方向上对齐的多个绝对刻度，用于检测绝对刻度上的校准的多个检测器，用于产生每个检测器的绝对位置数据的每个刻度的绝对位置数据产生部分，以及 用于输出连接的整个绝对刻度的整个长度上的绝对位置的计算器，添加每个检测器的绝对位置数据和检测器之间的距离。 检测器以这样的间隔固定，以便同时检测刻度连接部分中邻接的两个绝对刻度的校准。 因此，以低成本实现了易于使用的长绝对线性编码器。

公开(公告)号：US4943716A

公开(公告)日：1990-07-24

申请号：US298430

申请日：1989-01-18

申请人： Souji Ichikawa ,  Hideki Oka ,  Naoyoshi Terao ,  Seiji Sakagami

发明人： Souji Ichikawa ,  Hideki Oka ,  Naoyoshi Terao ,  Seiji Sakagami

IPC分类号： G01D5/36

CPC分类号： G01D5/36

摘要： In a diffraction type optical displacement encoder using a diffractive light source and having a main scale grating and an index scale grating, a light-receiving element receives two rays satisfying a relationship concerning the lengths of light paths at the rays between the light source and the index scale grating, and the width of the light receiving element, wherein the difference between the path length of each ray is approximately equal to an integral multiple of the square of the pitch of the main scale grating divided by the wavelength of the light source, and the width of the light receiving element, measured as the distance between the impingement points of the two rays at the index scale, is integrally related to the difference in ray path lengths and the angle of the impinging rays due to an offsetting of the light-receiving element. In a second aspect of the invention, two light-receiving elements receive two rays satisfying a similar relationship, and a sum of outputs of the respective light-receiving elements is made to be a detection signal. Or, in an optical encoder using a collimated lighting system, an index scale is leaned (inclined) toward a main scale by a predetermined value. With any one of these arrangements, a component of variation in the detection signal due to a geometric image can be offset or integrated to be removed, whereby the dependence of an S/N ratio of the detection signal on the grating gap can be avoided. Furthermore, in a reflection type encoder using a diffusive light source, diffused rays from a point light source is focused by a condensing lens to produce a secondary point light source and this secondary point light source is positioned in a plane where second gratings corresponding to an index scale are formed. With this arrangement, a collimator lens can be dispensed with, so that the encoder can be rendered compact in size. Furthermore, the respective elements can be easily supported and positioned.

公开(公告)号：US4500097A

公开(公告)日：1985-02-19

申请号：US572320

申请日：1984-01-20

申请人： Hitoshi Sakamoto ,  Seiji Sakagami ,  Shigeru Nagashima

发明人： Hitoshi Sakamoto ,  Seiji Sakagami ,  Shigeru Nagashima

IPC分类号： G01D5/347 ,  G01B5/02 ,  F16J15/32 ,  F16J15/40

CPC分类号： G01D5/34769 ,  Y10S277/918

摘要： In a seal device in a displacement measuring instrument, comprising a hollow case fixed to one member, a connecting rod for imparting a displacement of the other member to a displacement detecting mechanism housed in the hollow case through the opening and seal members disposed at opposite sides of the opening, for shielding a penetrating portion of said connecting rod, to enhance the drip-proof performance, a difference is given between the positions of the forward ends of lip members constituting said seal members, whereby the forward end of the lip member disposed at one side where liquid drops are generated is projected farther than the forward end of the lip member disposed at the other side, and/or a liquid receiving groove extending along the opening is provided at least at one side of the inner surface of the hollow case, liquid drain holes are formed in the bottoms of the liquid receiving grooves, filters for excluding dust intruding from outside are provided in the liquid drain holes, and/or liquid breaking means for precluding a liquid flow intruding from outside of the hollow case are provided on the outer peripheral surface of the connecting rod.

摘要翻译： 在位移测量仪器的密封装置中，包括固定到一个构件的中空壳体，连接杆，用于通过设置在相对侧的开口和密封构件将另一构件移动到容置在中空壳体中的位移检测机构 的开口部，为了遮蔽所述连杆的贯通部，为了提高防滴漏性，在构成所述密封部件的唇部件的前端的位置之间存在差异，由此唇部件的前端设置 在产生液滴的一侧比设置在另一侧的唇缘部件的前端更远，并且/或沿着开口延伸的液体接收槽至少设置在中空部分的内表面的一侧 在液体容纳槽的底部形成液体排出孔，在液体抽屉中设置用于排除从外部侵入的灰尘的过滤器 在连接杆的外周面上设置有用于排除从中空壳体外部侵入的液体流的液体破裂装置和/或液体破坏装置。