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1. 发明专利

JP2002027781A CORELESS DC MOTOR 失效
公开(公告)号：JP2002027781A
公开(公告)日：2002-01-25
申请号：JP2000205573
申请日：2000-07-03
申请人： MITSUBISHI PRECISION CO LTD
发明人： OKAZAKI HIROYOSHI , KINOSHITA TAKAHIRO
IPC分类号： H02K29/00 , H02K3/04 , H02K3/28 , H02K3/47 , H02K11/00 , H02K21/14 , H02K21/22 , H02P6/12
摘要： PROBLEM TO BE SOLVED: To provide a coreless DC motor which enables reduction of an eddy current loss without decreasing a motor output. SOLUTION: Each of the coreless coils 141 to 1412 provided to a stator is connected to switching transistors 631 to 633 via reverse current protection diodes 621 to 633. Consequently, it is prevented that an eddy current circulates through a closed circuit formed by connection of a coreless coil and an eddy current loss is reduced to about 5/6. Moreover, the eddy current loss can further be reduced to about 3/5 by forming each coreless coil as an aggregation of a plurality of sub-coils and providing a reverse current preventing diode to each sub-coil.

2. 发明专利

JPS62124410A ANGLE DETECTING DEVICE FOR FREE GYRO MECHANISM 失效
公开(公告)号：JPS62124410A
公开(公告)日：1987-06-05
申请号：JP26381585
申请日：1985-11-26
申请人： MITSUBISHI PRECISION CO LTD
发明人： KAMIOKA SUSUMU , OKAZAKI HIROYOSHI
IPC分类号： G01C19/28 , G01D5/18
摘要： PURPOSE:To detect angular displacement with high precision by providing a displacement detecting mechanism formed by combining a magneto-resistance element and a permanent magnet while a gimbals device. CONSTITUTION:When a gyro 10 rotates around an axis 18 of rotation by preces sion to and away from an inside gimbals 14, the permanent magnet 24 held by a magnet holder 22 also rotates. At this time, equivalently the same result with the linear displacement the magnet 24 along the plane of the sensitive part 34 of the magneto-resistance element 30 is obtained as variation of the magnetic flux of the magnet 24 to the three-terminal magneto-resistance element 30. Namely, a signal corresponding to the angle of rotation of the gyro 10 in precession motion is led out of the magneto-resistance element 30 as a voltage signal. Consequently, the angular displacement is detected with high precision.

3. 发明专利

JP2001282359A PARALLEL MECHANISM AND METHOD AND DEVICE FOR CONTROLLING THE SAME 失效
公开(公告)号：JP2001282359A
公开(公告)日：2001-10-12
申请号：JP2000097913
申请日：2000-03-30
申请人： MITSUBISHI PRECISION CO LTD
发明人： OKAZAKI HIROYOSHI , TERADA HISAFUMI , KAJIWARA KAGENORI
IPC分类号： B23Q5/26 , B25J11/00 , F16H21/46 , G05D3/00 , G05D3/12
摘要： PROBLEM TO BE SOLVED: To prevent any specific point in a parallel mechanism. SOLUTION: This parallel mechanism having a degree N of freedom is provided with a base 12, plural link sets 14 mounted on the base 12, a kinetic platform 16 supported by the link sets 14, and pairs of elements 18, 30, and 32 respectively formed at the connecting part of the base 12 and the link sets 14, the connecting part of the kinetic plat form 16 and the link sets 14, and the intermediate part of each link set 14. In this case, M (>N) pieces of sensors 20 and 22 as a whole are formed so that the moving amounts of the respective pairs of elements 18, 30, and 32 can be detected, and the position and attitude of the kinetic platform 16 is estimated so that any contradiction between the theoretical moving amounts of each pair of elements 18, 30, and 32 calculated from the presumed position and attitude of the kinetic platform 16 and the moving amounts actually detected by each sensor 20 and 22 can be reduced as a whole.

4. 发明专利

JP2000148382A INNER FORCE INTERFACE DEVICE WITH SIX-AXIS FORCE FEEDBACK 失效
公开(公告)号：JP2000148382A
公开(公告)日：2000-05-26
申请号：JP32097298
申请日：1998-11-11
申请人： MITSUBISHI PRECISION CO LTD
发明人： OKAZAKI HIROYOSHI
IPC分类号： G06F3/033 , G05G9/047 , G06F3/00 , G06F3/01
摘要： PROBLEM TO BE SOLVED: To provide an inner force interface device with a six-axis force feedback for making a user to perceive the inner force regarding six degrees of freedom of a position and posture. SOLUTION: The inner force interface device consists of an inner face presentation mechanism part 20 for presenting and transmitting the inner face to a user, a supporting part 30 and a control part 40 for controlling operation of the inner force presentation mechanism part 20, and the inner force presentation mechanism part 20 is provided with operation equipment 50 for connecting the user, a motion platform 60 for mounting the operation equipment 50, six rink sets 70 for supporting the motion platform 60, six driving devices 80 for driving each link set 70 and six position sensors 90. The position and the posture of the motion platform 60 are established by rotation angles of the six link sets 70 in a restricted motion range, and the inner force is transmitted to the user by the six driving devices 80 for driving each link set 70.

5. 发明专利

JP2000181618A TACTILE INTERFACE DEVICE WITH FOUR-SHAFT FORCE FEEDBACK 失效
公开(公告)号：JP2000181618A
公开(公告)日：2000-06-30
申请号：JP35484898
申请日：1998-12-14
申请人： MITSUBISHI PRECISION CO LTD
发明人： OKAZAKI HIROYOSHI , KOYAMA HIROSHI
IPC分类号： G06F3/033 , B25J9/22 , G05B15/02 , G05G11/00 , G06F3/038 , G09B9/00
摘要： PROBLEM TO BE SOLVED: To improve the operability and to reduce the fatigue due to long-time operation by allowing a control part to independently control forces supplied by 1st and 2nd force supply means according to signals from 1st and 2nd sensors. SOLUTION: Each link set 14 is equipped with a 1st sensor 46 for detecting the angle of rotation of a shaft 32. The control part 100 calculates the rotational position of a 1st movable part 16 from the signal sent from the 1st sensor 46 to the control part 100 and each 1st force supply means 38 transmits a force which is proper at the position to the 1st movable part 16 through each link set 14. A 2nd movable part 18 is equipped with a 2nd sensor 62 for detecting the quantity of movement of a movable part 50 along a 1st axis. Then the control part 100 calculates the position of the movable member 50 of the 2nd movable part 18 from the signal sent from the 2nd sensor 62 to the control part 100 and each 2nd force supply means 52 transmits a force which is proper at the position to the movable member 50.

6. 发明专利

JP2000112649A THREE-DIMENSIONAL SPACE COORDINATE INPUT DEVICE 失效
公开(公告)号：JP2000112649A
公开(公告)日：2000-04-21
申请号：JP27977098
申请日：1998-10-01
申请人： MITSUBISHI PRECISION CO LTD
发明人： OKAZAKI HIROYOSHI
IPC分类号： G06F3/033
摘要： PROBLEM TO BE SOLVED: To provide a desk top type inexpensive three-dimensional space coordinate input device facile in a coordinate input operation in a three-dimensional space. SOLUTION: This three-dimensional space coordinate input device 10 consists of a support part 12 and an operating part supported by the support part, and the operating part is provided with three link sets 26, a motion platform 38 supported by the three link sets 26 and operation equipment 40. Each link set 26 is provided with a first link 28, the second link 30, a first joint 32 for connecting the first and the second links 28 and 30, the second joint 34 for connecting the second link member 30 to the motion platform 38 and a position sensor 36. The three link sets 26 are connected to have one rotary shaft 42 in the support part 12 in each first link 28 and the motion platform 38 is adapted to execute a progressive movement by the first and the second joints 32 and 34.

7. 发明专利

JPH0894361A DEVICE FOR DETECTING OUTPUT OF ANGULAR VELOCITY/ ACCELERATION DETECTOR 失效
公开(公告)号：JPH0894361A
公开(公告)日：1996-04-12
申请号：JP22813194
申请日：1994-09-22
申请人： MITSUBISHI PRECISION CO LTD
发明人： HAYAKAWA YOSHIAKI , OKAZAKI HIROYOSHI , SHIBATA HAJIME
IPC分类号： G01C19/02 , G01C19/28 , G01C19/42 , G01C19/56 , G01C19/5649 , G01D5/18 , G01P9/02
摘要： PURPOSE: To eliminate the short service life problem by wear of a device for detecting output of angular velocity/acceleration detector incorporated in an angular velocity/acceleration detector. CONSTITUTION: A device for detecting output of angular velocity/acceleration detector which detects angular velocity/acceleration inputs through a piezoelectric element 12 and generates corresponding electrical detecting outputs is provided with a signal converting or amplifying section 14 which is connected to the detecting end of the element 12 and held in a rotatable and displaceable state, first rotary transformer means 18 which supplies the electric power for excitation of the section 14 from an external power source S in a non-contacting state, second rotary transformer means 20 which outputs the detecting output of the element 12 to an external signal circuit in a non-contacting state so that the device can deliver and receive electric signals and can be supplied with electric power without mechanical contact.

8. 发明专利

JPH04127208A BIAXIAL DRIVE MECHANISM 失效
公开(公告)号：JPH04127208A
公开(公告)日：1992-04-28
申请号：JP24734790
申请日：1990-09-19
申请人： MITSUBISHI PRECISION CO LTD
发明人： OKAZAKI HIROYOSHI , HAYAKAWA YOSHIAKI , KAMIOKA SUSUMU
IPC分类号： G05D3/00 , H01Q3/08
摘要： PURPOSE:To obtain a compact and light-weight driven object by using four pieces of links parallel to each other as a mechanism which secures the revolutions around an orthogonal biaxial line and separating a drive source from the driven object. CONSTITUTION:A reflector 10 of a homing head of a missile can revolve with two axes 6 and 8 orthogonal to each other and born rotatably by a support barrel 20 defined as the center axes. Then, four drive axes 14a, 14b, 16a and 16b are set in parallel to each other for drive of the reflector 10, and the tips of these drive axes are attached to the reflector 10 or a rotatable annular member 12 as a universal joint mechanism 26 or 24. A pair of axes 14a and 14b and the other pair of axes 16a and 16b form a four-node parallel link and always be able to move in parallel to each other. In such a constitution, a drive source like a motor of the large weight can be separated from a driven object and provided to a support structure part. Thus, the weight and the size of the driven object can be reduced.

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