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1. 发明专利

JPH11101604A POSITION DETECTING DEVICE FOR CYLINDER 失效
公开(公告)号：JPH11101604A
公开(公告)日：1999-04-13
申请号：JP21015598
申请日：1998-07-27
申请人： CKD CORP
发明人： NOMURA MASAYUKI , KITO HIDEO , NOMURA TOKUHIDE
IPC分类号： G01B7/00 , F15B15/28 , H01H36/00
摘要： PROBLEM TO BE SOLVED: To prevent the malfunction of reed switches and to extend the life of a position detecting device by controlling a switching element with the outputs of the reed switches responding to a magnet fitted to a piston, and allowing light emitting bodies to emit light. SOLUTION: When drive air is fed to a cylinder and a piston having fitted magnet is slid in a cylinder main body, reed switches 2, 3 fitted to the outer periphery of the cylinder main body and serving as detecting means are connected together by the magnet fitted to the piston when the piston is located in a prescribed range. When the reed switches 2, 3 are connected together, the control terminals for transistors 14, 19, 21, 22 connected in series to the reed switches 2, 3 and serving as switching elements are excited. A power supply is connected to one side of the switching elements via an input terminal 11, red and green diodes 16, 20 serving as light emitting bodies are connected to another side, thus the light emitting bodies emit light. The amount of current flows in the reed switches 2 is little, 3 because they are excited via the switching elements.

2. 发明专利

JPH1061616A PISTON POSITION DETECTING DEVICE 失效
公开(公告)号：JPH1061616A
公开(公告)日：1998-03-06
申请号：JP22264596
申请日：1996-08-23
申请人： CKD CORP
发明人： NOMURA MASAYUKI
IPC分类号： F15B15/28
摘要： PROBLEM TO BE SOLVED: To prevent a lead wire from being broken early even when it is repeatedly bent by providing an open end part of a lead wire holding part with a guide part for permitting the lead wire led out through the lead wire holding part to move in the radial direction of the lead wire. SOLUTION: With the drive of a robot device of a fluid pressure cylinder 1, a lead wire 7 from a piston position detecting device 4 to a control part of the robot device is bent or elongated according to the movement of the fluid pressure cylinder 1. At this time, the inner circumferential surface of a lead wire holding part 6 is formed in such a manner as to have a circular-arc section gradually increased in diameter toward the outside to be taken as a chamfer 6a, whereby even when the lead wire 7 bends at its led-out part from the lead wire holding part 6, the lead wire 7 can be bent smoothly along the above chamfer 6a formed like a circular-arc. Accordingly, even if the lead wire 7 is repeatedly bent and elongated, the lead wire 7 can be prevented from being broken early.

3. 发明专利

JPH1038628A MOUNTING STRUCTURE OF POSITION-DETECTING SENSOR FOR FLUID PRESSURE CYLINDER, AND POSITION-DETECTING SENSOR FOR FLUID PRESSURE CYLINDER 失效
公开(公告)号：JPH1038628A
公开(公告)日：1998-02-13
申请号：JP19069396
申请日：1996-07-19
申请人： CKD CORP
发明人： NOMURA MASAYUKI , NOMURA TOKUHIDE
IPC分类号： G01B21/00 , F15B15/28 , G01D5/12 , G01D11/30 , G12B9/08 , H01H36/00
摘要： PROBLEM TO BE SOLVED: To surely fix a position detecting sensor for fluid pressure sensor without giving any damage to the mounting groove of a fluid pressure cylinder and the position detecting sensor. SOLUTION: An passing hole 14 is formed into a position detecting switch 2 which is engaged with the mounting groove of an air cylinder in a state where the switch 2 can be moved in the axial direction only at the position facing the mounting groove and holding plates 6 and 7 are fixed to the mounting groove with a fixing bolt 8 which is passed through the hole 14. On the internal peripheral surface of the hole 14, a plurality of supporting pieces 15 elongated in the vertical direction are provided at equal angular intervals in the peripheral direction. Fach supporting piece 15 supports the bolt 8 so that the hole 14 cannot move in the axial direction relatively to the bolt 8, because its inner peripheral side is shaved off when the bolt 8 is screwed in the hole 14.

4. 发明专利

JPH0925911A CYLINDER DEVICE WITH SWITCH 失效
公开(公告)号：JPH0925911A
公开(公告)日：1997-01-28
申请号：JP20172495
申请日：1995-07-13
申请人： CKD CORP
发明人： OZAWA YUKIO , NOMURA MASAYUKI , KITO HIDEO
IPC分类号： F15B15/28
摘要： PROBLEM TO BE SOLVED: To prevent the reduction in the output voltage even if the displacement of detection is increased. SOLUTION: A cylinder device fitted with a switch in which the provided switch detects the displacement of a piston and a permanent magnet moves to that which two magnetic linear scales 11, 12 whose density linearly changes are juxtaposed has a differential circuit for calculating the difference in the outputs of two magnetic linear scales 11, 12, so that the position of the piston being moved by the action of compressed air can be output as linear analog data, even if the displacement of detection is increased, without reducing the output voltage.

5. 发明专利

JP2008157683A Position sensor for hydraulic cylinder 审中-公开
标题翻译：液压缸位置传感器
公开(公告)号：JP2008157683A
公开(公告)日：2008-07-10
申请号：JP2006344768
申请日：2006-12-21
申请人： Ckd Corp , シーケーディ株式会社
发明人： NOMURA MASAYUKI , HIRAMATSU KIYOSHI , IWATA MASAO
IPC分类号： G01B7/00 , F15B15/28
摘要： PROBLEM TO BE SOLVED: To provide a position sensor for hydraulic cylinders and capable of being adjusted to a state capable of outputting correct detection signals from the position sensor even in the case that a mounting position of the position sensor mounted on a hydraulic cylinder cannot be adjusted by manual work, when the hydraulic cylinder is in a state where it is installed at a fixed installation location.
SOLUTION: A one-chip microcomputer 42 makes magnetic sensors Sa-Sd sequentially operate and determines whether the magnetic sensors Sa-Sd can detect the positions of pistons. When detection is attained, the one-chip microcomputer 42 sets the magnetic sensors Sa-Sd that have been made to operate at the time, in such a way as to operate. The one-chip microcomputer 42 is set to select all the magnetic sensors Sa-Sd having operating ranges covering the position of the pistons, taking into consideration when the operating ranges of the magnetic sensors Sa-Sd overlap one another.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供用于液压缸的位置传感器，并且能够被调节到能够从位置传感器输出正确的检测信号的状态，即使在安装在液压装置上的位置传感器的安装位置的情况下当液压缸处于固定安装位置的状态时，无法通过手动工作来调节气缸。解决方案：单片微机42使得磁传感器Sa-Sd顺序地运行，并且确定磁传感器Sa-Sd是否可以检测活塞的位置。当检测到时，单片微型计算机42以这样的方式设置已经被制造为操作的磁传感器Sa-Sd。单片微型计算机42被设置为在磁传感器Sa-Sd的工作范围彼此重叠的同时考虑到具有覆盖活塞位置的操作范围的所有磁传感器Sa-Sd。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008020032A Position detector for fluid pressure cylinder 审中-公开
标题翻译：流体压力缸位置检测器
公开(公告)号：JP2008020032A
公开(公告)日：2008-01-31
申请号：JP2006193938
申请日：2006-07-14
申请人： Ckd Corp , シーケーディ株式会社
发明人： NOMURA MASAYUKI , HIRAMATSU KIYOSHI , IWATA MASAO
IPC分类号： F15B15/28
摘要： PROBLEM TO BE SOLVED: To perform stable position detection even if a position detector is mounted on a fluid pressure cylinder so that the leading side of a lead wire thereof can be set either on a piston side or on a head side.
SOLUTION: The position detector 10 comprises a circuit board 20 which is vertically arranged relative to a magnet 16 provided on a piston 12 in a mounted state on the fluid pressure cylinder 11, and two magnetic sensors 21 and 22 disposed on both surfaces of the circuit board 20 while being respectively shifted in the moving direction of the piston 12 so that the operating ranges thereof are partially overlapped. The magnetic sensors 21 and 22 each compare an output voltage of a magnetic resistance element showing a resistance value corresponding to the intensity of magnetic field from the magnet 16 with a reference voltage by a comparator and output the comparison result. The position detector 10 includes a light emitting diode which emits light when one of the two magnetic sensors 21 and 22 is in the detecting state, and a light emitting diode which emits light when both of the two magnetic sensors 21 and 22 are in the detecting state.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：即使位置检测器安装在流体压力缸上，使得其引线的前侧可以设置在活塞侧或头侧上，也能够进行稳定的位置检测。解决方案：位置检测器10包括电路板20，该电路板20相对于设置在活塞12上的磁体16在安装状态下垂直设置在流体压力缸11上，并且两个磁性传感器21和22设置在两个表面上同时分别在活塞12的移动方向上移动，使得其操作范围部分重叠。磁传感器21和22各自比较表示与磁体16的磁场强度相对应的电阻值的磁阻元件的输出电压与比较器的参考电压，并输出比较结果。位置检测器10包括当两个磁传感器21和22中的一个处于检测状态时发光的发光二极管，以及当两个磁传感器21和22都处于检测状态时发光的发光二极管州。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007224940A Position detection device for hydraulic cylinder and driving state setting method for the same 有权
标题翻译：液压缸位置检测装置及其驱动状态设定方法
公开(公告)号：JP2007224940A
公开(公告)日：2007-09-06
申请号：JP2006043683
申请日：2006-02-21
申请人： Ckd Corp , シーケーディ株式会社
发明人： NOMURA MASAYUKI , KITO HIDEO , OKABE MITSUYASU
IPC分类号： F15B15/28 , G01D5/18
摘要： PROBLEM TO BE SOLVED: To adjust so that a proper detection signal can be output from a position detection device even when a mounting position of the position detection device attached to a hydraulic cylinder cannot be manually adjusted in a state wherein the hydraulic cylinder is installed in a predetermined installation position. SOLUTION: The position detection device 10 is provided with a plurality of magnetic sensors Sa to Sd, a magnetic sensor selection circuit for selectively setting one of the plurality of the magnetic sensors in an operable state, and an outside operation means capable of setting the magnetic sensor selection circuit in a desirable output state. The magnetic sensors Sa to Sd are arranged along a moving direction of a piston 12 in the state wherein the position detecting device 10 is attached to the hydraulic cylinder 11, and are arranged so that a part of an operation region of adjacent magnetic sensors is overlapped. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了进行调整，即使当在液压缸的状态下不能手动调节安装在液压缸上的位置检测装置的安装位置时，也能够从位置检测装置输出适当的检测信号安装在预定的安装位置。解决方案：位置检测装置10设置有多个磁传感器Sa至Sd，用于选择性地将多个磁传感器中的一个设置为可操作状态的磁传感器选择电路，以及能够将磁传感器选择电路设置在期望的输出状态。在位置检测装置10安装在液压缸11上的状态下，磁传感器Sa〜Sd沿着活塞12的移动方向配置，并配置为使得相邻的磁传感器的操作区域的一部分重叠。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2000046505A POSITION DETECTOR FOR FLUID PRESSURE CYLINDER 失效
公开(公告)号：JP2000046505A
公开(公告)日：2000-02-18
申请号：JP21409898
申请日：1998-07-29
申请人： CKD CORP
发明人： NOMURA MASAYUKI , ITO KATSUTOSHI
IPC分类号： G01B7/00 , H02H3/08 , H02H9/02
摘要： PROBLEM TO BE SOLVED: To provide a position detector for fluid pressure cylinder which can be simplified in circuit configuration and reduced in number of parts. SOLUTION: An overcurrent protective circuit 14 is constituted of a transistor bridge 15, a resistor R5 for restricting current, a resistor R for detecting overcurrent, and a capacitor C2 for absorbing surge. In the transistor bridge 15, the collector terminal of a transistor T3 is connected to the base terminal of another transistor T4 and the collector terminal of the transistor T4 is connected to the base terminal of the transistor T3. In addition, the emitter terminal of the transistor T4 is connected between a transistor T1 and a light emitting diode D3. Moreover, the emitter terminal of the transistor T3 is connected between a grounding terminal 11c and a diode D1 for protection and the base terminal of the transistor T3 is connected between a transistor T2 and the resistor R6 for detecting overcurrent through the resistor R5 for restricting current.

9. 发明专利

JPH09321598A DETECTION SWITCH 失效
公开(公告)号：JPH09321598A
公开(公告)日：1997-12-12
申请号：JP13673996
申请日：1996-05-30
申请人： CKD CORP
发明人： NOMURA MASAYUKI , ITO KATSUTOSHI
IPC分类号： G01B7/00 , H01H36/00 , H03K17/945 , H03K17/95
摘要： PROBLEM TO BE SOLVED: To attain a longer service life of circuit components by preventing heat generation due to overcurrent. SOLUTION: An NPN output transistor(TR) 1 controlling both an output terminal 1b and a ground terminal 1c of a 3-wire DC sensor switch 1 to be OFF or ON is provided between both the terminals. An output terminal of a detection circuit 4 is connected to the TR T1. An overcurrent sensing resistor R2 to activate an overcurrent protection circuit 11 based on the voltage drop resulting from an overcurrent is connected to the emitter of the output TR T1. Furthermore, TRs T3, T4 operated by the voltage drop due to an overcurrent are connected to the overcurrent sensing resistor R2. The emitter of a TR T4 is connected to a power terminal 1a, and a collector is connected to the gate of a thyristor 22 provided between a ground terminal 1c and the input terminal of an output circuit 5.

10. 发明专利

JPH09203677A PRESSURE SWITCH 失效
公开(公告)号：JPH09203677A
公开(公告)日：1997-08-05
申请号：JP3142596
申请日：1996-01-24
申请人： CKD CORP
发明人： NOMURA MASAYUKI , ITO KATSUTOSHI
IPC分类号： G01L9/14 , G01L9/00
摘要： PROBLEM TO BE SOLVED: To attain accurate detection of the pressure of a fluid at a high pressure area by detecting the position of a piston moving under the pressure of the fluid with a magnetic linear scale for outputting as linear analog data. SOLUTION: As a piston within a cylinder rises by receiving the pressure of a fluid, a permanent magnet 9 moves along a magnetic linear scale 31 so that a midpoint voltage 22 decreases in proportion to a drop in the internal resistance of a magnetoresistance element R1 and when the midpoint voltage 22 is between reference voltages E1 and E2 (E1 >E2 ) set, outputs of comparators 32 and 33 both go up to a high level to make a voltage work on the base of a transistor 37, turning ON a LED 39. As a result, the output S is turned ON and it is found that the pressure of the fluid reaches a set value. With the pressure switch thus obtained, a detection value of the pressure of the fluid can be adjusted easily by changing a biasing force to the piston facilitating adaptation to a higher pressure of the fluid. This also makes detection possible in a narrow moving area by changing the reference voltages E1 and E2 with a variable resistor 36 to adjust the detection width.

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