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1. 发明专利

JPH11144918A MULTIPLE ROTARY POTENTIOMETER 失效
公开(公告)号：JPH11144918A
公开(公告)日：1999-05-28
申请号：JP30892297
申请日：1997-11-11
申请人： COPAL CO LTD
发明人： GOTO TATSUKI , TONOGAI YOSHIHIDE , TAKAGI MASAAKI
IPC分类号： H01C10/22 , H01C10/24
摘要： PROBLEM TO BE SOLVED: To provide a multiple rotary potentiometer which can be improved in resolution and at the same time, in productivity, durability, and reliability. SOLUTION: A multiple rotaty potentiometer is provided with a case 1, a resistor 2 arranged spirally in the case 1, and a rotating body 3 having a sliding contact section 3a which slides on the surface of the resistor 2, while the section 3a is brought into contact with the surface and can change the contacting position of the contact section 3a with the resistor 2 by having the rotator 3 rotated. The resistor 2 is formed by laminating a conductive plastic layer upon the surface of a tape-like insulating base material.

2. 发明专利

JPH10336949A METHOD FOR FIXING VIBRATOR OF VIBRATION GENERATING MOTOR 失效
公开(公告)号：JPH10336949A
公开(公告)日：1998-12-18
申请号：JP13871697
申请日：1997-05-28
申请人： COPAL CO LTD
发明人： TAKAHASHI ATSUNORI , UBUKAWA NOBORU , SUZUKI SATOSHI , INO KATSUMI , TAKAGI MASAAKI
IPC分类号： H02K7/065
摘要： PROBLEM TO BE SOLVED: To fix a vibrator without bending a rotating shaft in the case of fixing the vibrator to the rotating shaft by caulking the shaft with an attaching member. SOLUTION: In a method by which a block-like vibrator 4 having a shaft fixing surface 5 is eccentrically fixed to the rotating shaft 3 of a vibration generating motor 1, the vibrator 4 is fixed to the shaft 3 by pushing the shaft 3 in a shaft inserting groove 6 having an opened end section 8 protruded inward while the end section 8 is temporarily widened by press-fitting the shaft 3 in the groove 6 from the upside of the shaft fixing surface 5.

3. 发明专利

JPH06341911A OPTICAL ROTATING TORQUE DETECTING DEVICE 失效
公开(公告)号：JPH06341911A
公开(公告)日：1994-12-13
申请号：JP15159093
申请日：1993-05-28
申请人： COPAL CO LTD
发明人： NOGUCHI HIROYASU , TAKAGI MASAAKI , ODAJIMA SHIN
IPC分类号： G01L3/12 , G01L3/08 , G01L3/10
摘要： PURPOSE:To downsize a light receiving element to be built in an optical rotating torque detecting device. CONSTITUTION:A rotating slit plate X is provided with two tracks TA, TB of slit holes of the half period portion, with the width corresponding to four times one side torsion quantity at the maximum torque as one period P, at equal intervals along the whole circumference. The outer rotating slit plate Y has two tracks of slit holes whose phases are shifted by 1/4 period portion in the reversed direction of each track TA, TB to the slit holes. A light receiving element has light receiving areas A, B, A , B radially and circumferentially divided into four areas in total by two areas. Each track, for example, TA, is concentrically divided into two stages, and the slit hole arrangement phases of the respective stages TA1, TA2 are mutually shifted by 1/4 period. Each light receiving area A, B, A , B has a circumferential width equal to P/4 period.

4. 发明专利

JPH06249677A OPTICAL ROTATIONAL POSITION DETECTING DEVICE 失效
公开(公告)号：JPH06249677A
公开(公告)日：1994-09-09
申请号：JP6308293
申请日：1993-02-26
申请人： COPAL CO LTD
发明人： GOTO TATSUKI , HOSOHATA NOBUHIKO , TAKAGI MASAAKI
IPC分类号： G01D5/347 , G01D5/34
摘要： PURPOSE:To prevent the flexural deformation of a rotating disk having a spiral slit by reinforcing the disk and, at the same time, to stabilize the rotation detecting output of an optical rotational position detecting device. CONSTITUTION:The title detecting device is constituted of a disk 1 which is rotationally displaced around a rotating shaft 2 and light source 6 and photoreceptor element 7 which are counterposed to each other on both sides of the disk 1. A spiral slit 3 is formed on the surface of the disk 1 along the peripheral direction. The light from the light source 6 is made incident on the disk 1. On the other hand, the photoreceptor element 7 has a long light receiving surface 1 extended along the diametral direction of the disk 1, receives the light 9 transmitted through the slit 3 moving along the diametral direction as the disk 1 is rotated, and outputs a rotating position detecting signal. In order to reinforce the disk l, a beam section 4 is provided along the width direction of the slit 3. In order to stabilize the detecting signals, in addition, a pair of correcting holes 5 of different sizes are provided on both sides of the beam section 4 in the diametral direction of the slit width so that the total area of the holes 5 can become the same as that of the beam section 4.

5. 发明专利

JPH06160117A OPTICAL DISPLACEMENT DETECTING DEVICE 失效
公开(公告)号：JPH06160117A
公开(公告)日：1994-06-07
申请号：JP33547492
申请日：1992-11-20
申请人： COPAL CO LTD
发明人： FUKUDA TAKUMI , TAKAGI MASAAKI
IPC分类号： G01D5/38
摘要： PURPOSE:To form an optical displacement detecting device utilizing laser into a unit structure, simplify the structure, remove noises, and improve the detection sensitivity. CONSTITUTION:An optical displacement detecting device is constituted of a light source unit 11 emitting the coherent light 6, an interference optical system unit 2 generating interference fringes 1, a moving body formed with a space lattice 4 and displaced to cross the interference fringes 1, and a light receiving unit 5 receiving the interference fringes 1 via the space lattice 4 and detecting the displacement of the moving body 3. The interference optical system unit 2 divides the coherent light 6 into two light fluxes 7, 8 to generate phase-A interference fringes corresponding to the X-polarization constituent and phase-B interference fringes corresponding to the Y-polarization constituent. A phase modulation member 13 is provided on one light flux 8 to give the relative wave front phase difference to the X, Y-polarization constituents, and the spatial phase difference is generated between the phase-A interference fringes and phase-B interference fringes. The light receiving unit 5 separately receives the phase-A interference fringes and phase-B interference fringes, and the displacement direction of the body 3 can be detected by the phase difference between the light reception quantity changes of both of them.

6. 发明专利

JPH06147925A OPTICAL ROTATIONAL POSITION DETECTING DEVICE 失效
公开(公告)号：JPH06147925A
公开(公告)日：1994-05-27
申请号：JP31931592
申请日：1992-11-04
申请人： COPAL CO LTD
发明人： GOTO TATSUKI , HOSOHATA NOBUHIKO , TAKAGI MASAAKI
IPC分类号： G01D5/347 , G01D5/34
摘要： PURPOSE:To prevent deflection and to stabilize rotational detection output by reinforcing a rotary disk in which a helical slit is formed. CONSTITUTION:An optical rotational position detecting device consists of a disk 1 that rotates with rotating shaft 2, and a light source 6 and a photodetecting element 7, on both sides of the disk. On the surface of the disk 1' a helical slit 3 is formed circumferentially. The light source 6 throws light on the disk 1. Meanwhile, the photodetecting element 7 is provided with an oblong photodetecting surface 8 provided in disk 1's radial direction, and it detects transmitted light 9 through the slit moving in radial direction in accordance with rotation so as to output detection signal of rotational position. A beam part 4 is provided across a band part, in radial direction, of the slit 3, so that the disk 1 is reinforced. Further, on both sides, etc., in the radial direction, of the band part of the slit 3 corresponding to the beam part 4, at least one pair of correction holes 5, of similar shape, is provided for more stabled detection signal.

7. 发明专利

JPH05333054A 失效
公开(公告)号：JPH05333054A
公开(公告)日：1993-12-17
申请号：JP15737392
申请日：1992-05-26
申请人： COPAL CO LTD
发明人： TONOGAI YOSHIHIDE , YANAGISAWA MITSURU , TAKAGI MASAAKI
IPC分类号： G01P15/125
摘要： PURPOSE:To easily perform positioning of an electrostatic capacity type detector having a laminating structure and improve assembly. CONSTITUTION:An acceleration detector is assembled on an attaching base 1 on which a support shaft 2 is embedded. A cylindrical fixing bush 11 with a cross section different shape is engaged with the support shaft 2. A lower side fixing electrode board 12 has electrode patterns on both faces of a front face and a rear face and is engaged with said fixing bush 11 through a different shape owing 13 for the purpose of being positioned and held. In addition, an upper fixing electrode board 17 is also engaged with the fixing bush 11 through another different shape opening 18 for the purpose of being positioned and held. Furthermore, a movable electrode piece 15 is also inserted in a fixing bush 11, held therein, exists between both the fixing electrode boards 12, 17 and constitutes a differential capacity.

8. 发明专利

JPH05118880A OPTICAL DISPLACEMENT DETECTION DEVICE 失效
公开(公告)号：JPH05118880A
公开(公告)日：1993-05-14
申请号：JP30675191
申请日：1991-10-25
申请人： COPAL CO LTD
发明人： FUKUDA TAKUMI , TAKAGI MASAAKI
IPC分类号： G01B11/00 , G01D5/36
摘要： PURPOSE:To enable a detection sensitivity to be improved by forming an optical displacement detection device utilizing laser in a unit, slmplifying it, and at the same time eliminating noise. CONSTITUTION:A light-source unit 1 is separated from a main body and generates a coherent light. An optical waveguide member 2 is connected to the light-source unit 1. thus constituting an optical waveguide for guiding the coherent light to the main body part. An interference optical system unit 3 is connected to the optical waveguide member 2. thus enabling interference fringes 4 with a specified cycle to be generated. A traveling body 5 is mounted to the main body part so that it can be displaced across the interference fringes 4. A space lattice 6 with a pitch interval corresponding to a cycle of the interference fringes 4 is formed at the traveling body 5. Furthermore, a light- reception means is provided and the interference fringes 4 are received through the space lattice 6, thus enabling a displacement of the traveling body 5 to be detected.

9. 发明专利

JPH0522220B2 失效
公开(公告)号：JPH0522220B2
公开(公告)日：1993-03-26
申请号：JP20894582
申请日：1982-11-29
申请人： COPAL CO LTD
发明人： TAKAGI MASAAKI , KUROSU TOMIO , HARANO TETSUO , YOSHIKAWA YUKIO , MATSUMOTO KUNIO , NAMIOKA AKITA , SASAKI TOYONORI
IPC分类号： G03B13/36 , G02B7/32 , G02B7/34 , G02B7/38

10. 发明专利

JPH0473130B2 失效
公开(公告)号：JPH0473130B2
公开(公告)日：1992-11-20
申请号：JP6194882
申请日：1982-04-14
申请人： COPAL CO LTD
发明人： TAKAGI MASAAKI
IPC分类号： G03B9/64 , G01C3/00 , G01C3/06 , G02B7/32 , G03B13/36

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