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71. 发明专利

JP2001174289A DETECTOR FOR ANGULAR ROTATION 失效
公开(公告)号：JP2001174289A
公开(公告)日：2001-06-29
申请号：JP35947799
申请日：1999-12-17
申请人： ALPS ELECTRIC CO LTD
发明人： KATO HIRONORI , SANPEI YOSHIO , HOSHI TOSHIYUKI , OKUMURA HIROBUMI , TOKUNAGA ICHIRO , OGAWA TOSHIO
IPC分类号： G01D5/36 , B62D15/00 , B62D15/02 , G01B7/00 , G01B7/30 , G01D3/08 , G01D5/244 , G01D5/245 , G01P3/488
摘要： PROBLEM TO BE SOLVED: To provide an angle of rotation detector for judging the quality of each detection signal output by a rotation detector 1 and using the detection signal, in the case of proper detection signal for conducting a specific control. SOLUTION: A rotation detector 1 for outputting sine wave shape first detection signal and second detection signal having a constant amplitude, identical period and 1/4 wavelength phase shift by the rotation of a rotor connected with a rotational body, a memory 3 for renewing and storing the first detection signal and the second detection signal and a control part 2 are provided. The control part 2 compares each amplitude values of the latest first detection signal and second detection signal output by the rotation detector 1 and determines whether they are within a proper range. When they are determined to be within a proper range, the detection information formed based on the latest first detection signal, and second detection signal is supplied to the controller 4. When they are determined not within the proper range, the latest first and second detection signals are thrown and the detection information is not supplied to the controller 4.

72. 发明专利

JP2001114116A ROTATION ANGLE DETECTING DEVICE 失效
公开(公告)号：JP2001114116A
公开(公告)日：2001-04-24
申请号：JP29707199
申请日：1999-10-19
申请人： ALPS ELECTRIC CO LTD
发明人： KATO HIRONORI , HOSHI TOSHIYUKI , SANPEI YOSHIO , OKUMURA HIROBUMI
IPC分类号： B62D6/00 , B62D5/04 , B62D5/06 , B62D15/02 , B62D113/00 , G01D5/244
摘要： PROBLEM TO BE SOLVED: To provide a rotation angle detecting device for detecting a rotation angle from an arctangent angel which is a continuous amplitude ratio between a first and a second angle detecting signal, with a high degree of accuracy. SOLUTION: This rotation angle detecting device is composed of a rotation angle detecting part 1 for delivering a first and second sinusoidal angle detecting signals which are obtained through rotation of a rotor coupled to a rotary member, and which have a one and the same period with a phase different of about 1/4 of their wavelength therebetween, a memory part 3 for storing therein these signals, and a control part 2 which detects amplitudes of the first and second angle detecting signals, then compares the absolute value of the first angle detecting signal with that of the second angle detecting signals so as to divide the larger absolute value by the smaller absolute value in order to obtain a divide value, and calculates from an arctangent of the divided value a basic rotation angle of the rotary member, while setting different angle processing cases for different polarities and different amplitude ranges of the calculated amplitudes of the first and second angle detecting signals. Thus, detected basic angles are converted into different angle values for the different angle processing cases in order to detects a rotation angle or the rotary member.

73. 发明专利

JPH11241918A CONNECTING TOOL, AND ROATING ANGLE SENSOR USING THIS CONNECTING TOOL 失效
公开(公告)号：JPH11241918A
公开(公告)日：1999-09-07
申请号：JP4490398
申请日：1998-02-26
申请人： ALPS ELECTRIC CO LTD
发明人： OKUMURA HIROBUMI
IPC分类号： G01B21/22 , B62D15/02 , F16B7/04 , G01B7/30 , G01D5/245 , G01D5/347 , G01D11/02
摘要： PROBLEM TO BE SOLVED: To facilitate the fixing work of a rotating drum to a drive shaft or load shaft to improve the productivity by providing such a structure as not to directly fix the rotating drum to the drive shaft or load shaft. SOLUTION: This connecting tool 14 is formed of a metal plate for frictionally engaging the rotating shaft of a rotator having the rotating shaft inserted to the center part with the rotator in order to rotate the rotator together with the rotating shaft. This connecting tool 14 is formed of a ring-like base part 14a, a plurality of spring parts 14b extended from the base part 14a and having a bent part 14f, and a hole 14d provided on the top of the bent part 14f. According to this, the structure can be simplified with good productivity at a low cost. The periphery of the hole 14d can be frictionally engaged with the rotating shaft by providing the hole part 14d on the top of the bent part 14f, so that the rotation transmission to the rotator can be ensured.

74. 发明专利

JPH0821420A FIXATION STRUCTURE OF SHAFT AND LEVER 失效
公开(公告)号：JPH0821420A
公开(公告)日：1996-01-23
申请号：JP15878894
申请日：1994-07-11
申请人： ALPS ELECTRIC CO LTD
发明人： OGAWA TOSHIO , OKUMURA HIROBUMI , HIROZAWA NOBUYUKI
IPC分类号： F16B9/02
摘要： PURPOSE:To provide a fixation structure of a shaft and a lever which attains compact size in a diameter direction of the shaft, enables escape-prevention and strong fixation with a simple structure, enables assembling only by inserting a split portion across a side surface, provides accurate installation, and improves strength of the lever. CONSTITUTION:A lever 19 has a base 23 having an L-shaped sectional area composed of a flat one side surface and the other side surface 30, and a semi- cicular shaft through-hole 25 formed on the side surface of the base 23. A washer 24 is extended from an edge of the side surface of the base 23 of the lever 19, and formed by bending. A through-hole is formed on the washer 24 so as to face to an edge 26 of the base 23. A plurality of fitting pieces 28 are formed on a peripheral edge of the through-hole. A rotary shaft 21 has a split portion 29 on its leading end. The split portion 29 of the rotary shaft 21 is fitted to the through-hole and the shaft through-hole 25 across the side surface 30 of the base. The fitting pieces 28 are elastically deformed by the rotary shaft 21, engaged and fixed.

75. 发明专利

JPH0566232A ACCELERATION SENSOR 失效
公开(公告)号：JPH0566232A
公开(公告)日：1993-03-19
申请号：JP25597491
申请日：1991-09-09
申请人： ALPS ELECTRIC CO LTD
发明人： OKUMURA HIROBUMI
IPC分类号： G01P15/12 , G01P15/02
摘要： PURPOSE:To make it possible to perform measurement without amplification by providing a sliding piece as a unitary body with a bell whose position a resistor so as to change the resistance value of a circuit, and changing the acceleration into the resistance value. CONSTITUTION:A bell 4 is provided at one end of a rod 3, which is freely rotated on a pivot 2, and a sliding piece 5 is provided at the other end. A resistor substrate 6 is provided so as to face the sliding piece 5. A resistor 7 and a current collector 8 are formed in the concentric-circle patterns on the facing surface of the substrate 6 for the sliding piece 5. When the position of the bell 4 is changed in response to the acceleration of a vehicle, the sliding piece 5 following the turning of the rod 3 comes into sliding contact with the resistor 7 and the current collector 8. Therefore, the voltage corresponding to the deflecting angle of the rod 3 is outputted from the terminal. Thus, the acceleration and deceleration of the vehicle at the acceleration and deceleration are converted into the voltages, and values can be measured.

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