公开(公告)号：JP2009036313A

公开(公告)日：2009-02-19

申请号：JP2007201514

申请日：2007-08-02

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIZUTANI MASATOSHI ,  KOIKE SHUNSUKE

IPC: F16C25/08 ,  F16C17/04 ,  F16C19/10 ,  F16C19/30 ,  F16C33/10

Abstract: PROBLEM TO BE SOLVED: To provide a bearing device reducing frictional force of a distorted body and a portion applied with a load to reduce a hysteresis and enabling easy processing of a member for applying a load to the distorted body.
SOLUTION: A distortion sensor 11 for detecting the distortion of the distorted body 8 is provided, and a load applying member 9 for applying an axial load to the distorted body 8 is provided between the distorted body 8 and a spacer 5 to come into sliding contact with them.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种降低扭曲体的摩擦力的轴承装置和施加有负载的部分以减少滞后并且能够容易地处理用于向变形体施加负载的构件。 解决方案：提供用于检测变形体8的变形的变形传感器11，并且在失真体8和间隔件5之间设置用于向变形体8施加轴向载荷的负载施加构件9来到 与它们滑动接触。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008286219A

公开(公告)日：2008-11-27

申请号：JP2007128967

申请日：2007-05-15

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIZUTANI MASATOSHI

IPC: F16C41/00 ,  F16C19/16 ,  F16C25/08 ,  F16C35/07 ,  G01L5/00

Abstract: PROBLEM TO BE SOLVED: To provide a bearing device preventing the detecting accuracy degradation of a bearing preload by making a disturbance magnetic field from a motor hardly reach a magnetostrictive material to prevent the detecting accuracy degradation of a change in the magnetic property of the magnetostrictive material, and to provide a bearing preload detecting device.
SOLUTION: Part of a spacer is formed of the magnetostrictive material 10. At least part of the remainder of the spacer formed of the magnetostrictive material 10 is formed of a non-magnetic material, where a magnetic property change detecting means is provided for detecting a change in the magnetic property of the magnetostrictive material 10.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种通过使来自电动机的干扰磁场几乎不到达磁致伸缩材料来防止轴承预负荷的检测精度劣化的轴承装置，以防止检测精度降低磁性的变化 磁致伸缩材料，并提供轴承预载检测装置。 解决方案：间隔物的一部分由磁致伸缩材料10形成。由磁致伸缩材料10形成的间隔物的其余部分的至少一部分由非磁性材料形成，其中提供磁性变化检测装置 用于检测磁致伸缩材料10的磁特性的变化。版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2007101454A

公开(公告)日：2007-04-19

申请号：JP2005294250

申请日：2005-10-07

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： ISOBE HIROSHI ,  MIZUTANI MASATOSHI ,  SASAKI NORIHIKO

IPC: G01D5/245

Abstract: PROBLEM TO BE SOLVED: To provide an absolute encoder easy to obtain linearity of output by detecting an absolute rotating angle in an inexpensive compact configuration, that enables trimming and hardly requires demagnetization precision of the encoder.
SOLUTION: The absolute encoder 1 comprises a part to be detected 2 and a magnetic flux detection part 3, provided mutually relatively in rotatable manner. The part to be detected 2 covers a magnet 4 with a magnetic substance 5 and restricts the range of the magnetic flux detected by the magnetic flux detection part 3, by providing a window part 6 on the magnetic substance 5.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种通过在廉价的紧凑结构中检测绝对旋转角来获得输出线性的绝对编码器，能够进行修整，并且几乎不需要编码器的退磁精度。 解决方案：绝对编码器1包括相互相对地设置的待检测部分2和磁通量检测部分3。 要检测的部件2通过在磁性物质5上设置窗口部分6来覆盖具有磁性物质5的磁体4并限制由磁通量检测部分3检测的磁通量的范围。 C）2007，JPO＆INPIT

公开(公告)号：JP2006258242A

公开(公告)日：2006-09-28

申请号：JP2005079139

申请日：2005-03-18

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： OZAKI TAKAMI ,  MIZUTANI MASATOSHI

IPC: F16C41/00 ,  F16C19/18 ,  F16C33/78 ,  H01Q1/44 ,  H01Q1/52

CPC classification number: F16C41/008 ,  F16C33/7816 ,  F16C41/007 ,  F16C2326/02

Abstract: PROBLEM TO BE SOLVED: To provide a bearing with an antenna of good efficiency and a long communication distance which prevents the antenna from hindering the incorporation of the bearing into a housing. SOLUTION: The bearing 1 with an antenna comprises an inward member 2 and an outward member 3 which are allowed for relative rotation through a rolling element 4, and seals 5 and 6 for sealing the annular space between the inward member 2 and the outward member 3. An antenna 10 is embedded in the seal 6. The antenna 10 is a loop antenna formed in a spiral. The antenna 10 may be a patch antenna. COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供具有良好效率和较长通信距离的天线的轴承，防止天线阻碍轴承并入壳体中。 解决方案：具有天线的轴承1包括允许通过滚动元件4相对旋转的向内构件2和向外构件3，以及密封件5和6，用于密封向内构件2和 外部构件3.天线10嵌入密封件6中。天线10是以螺旋形成的环形天线。 天线10可以是贴片天线。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2005178493A

公开(公告)日：2005-07-07

申请号：JP2003420386

申请日：2003-12-18

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： SAHASHI KOJI ,  NOJIRI HIROMI ,  OKADA KOICHI ,  MIZUTANI MASATOSHI

IPC: B60B7/00 ,  B60C23/04

Abstract: PROBLEM TO BE SOLVED: To provide a wheel cap capable of obtaining the power generating function, maintaining a cover member in a non-rotatable state even a vehicle is traveling at a high speed, utilizing the cover member to various kinds of displays, and preventing a wheel from being out of the rotational balance by a means for maintaining the cover member in a non-rotatable state. SOLUTION: The wheel cap 1 comprises a rotatable cap body 2, a cover member 3 and a generator 4. The rotatable cap body 2 is a member to be rotated together with a wheel 6a with an outer circumferential portion thereof mounted on the wheel 6a. The cover member 3 is a member which is rotatably mounted on the rotatable cap body 2 by a bearing 5 at a rotational center part to cover an outer surface of the rotatable cap body 2. The generator 4 generates the power by the relative rotation of the rotatable cap body 2 to the cover member 3. A blade part 16 to maintain the cover member 3 in a non-rotational state by utilizing the viscous resistance caused by the fluid therearound is provided on the cover member 3. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了提供能够获得发电功能的车轮盖，即使车辆将车身保持在不可旋转状态也是高速行驶，利用该盖构件到各种显示器 并且通过用于将盖构件保持在不可旋转状态的装置来防止车轮脱离旋转平衡。 解决方案：轮盖1包括可旋转盖体2，盖构件3和发生器4.可旋转盖体2是与轮6a一起旋转的构件，其外圆周部分安装在 车轮6a。 盖构件3是通过轴承5在旋转中心部分可旋转地安装在可旋转盖体2上的部件，以覆盖可旋转盖体2的外表面。发生器4通过相对旋转而产生动力 可旋转盖体2到盖构件3.在盖构件3上设置有通过利用由其周围的流体引起的粘性阻力将盖构件3保持在非旋转状态的叶片部16。 C）2005，JPO＆NCIPI

公开(公告)号：JP2004127276A

公开(公告)日：2004-04-22

申请号：JP2003306964

申请日：2003-08-29

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： SAHASHI KOJI ,  OKADA KOICHI ,  MIZUTANI MASATOSHI

IPC: G01L5/00 ,  F16C19/52 ,  F16C41/00 ,  G01K1/02 ,  G01K1/14 ,  G08C17/02

Abstract: PROBLEM TO BE SOLVED: To provide a wireless sensor system which can be made with a lightweight and compact constitution, is easy to maintain and can communicate any time, while detection targets of the sensor system are vibration, temperature, load, torque or preload of bearings. SOLUTION: This wireless sensor system is provided with wireless sensor units 4A, 4B and a sensor signal receiver 5. The wireless sensor units 4A, 4B are provided with following part; a sensor parts 6A, 6B which detect detection targets, sensor signal transmitting parts 9A, 9B which wirelessly transmit sensor signals outputted from the sensor parts 6A, 6B, and electric power receiving parts 8A, 8B which wirelessly receive operation electric power driving the sensors 6A, 6B and sensor signal transmitting parts 9A, 9B. The sensor signal receiver 5 has a sensor signal receiving part 13 and a feeding electric power transmitting part 12. This wireless sensor system is provided with at least one of a vibration sensor, a temperature sensor, a load sensor, a torque sensor and a preload sensor which detects preload of bearings as the sensor parts 6A, 6B. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2014126376A

公开(公告)日：2014-07-07

申请号：JP2012281085

申请日：2012-12-25

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIZUTANI MASATOSHI

IPC: G01N27/04 ,  G01N27/72

Abstract: PROBLEM TO BE SOLVED: To provide a hardening quality inspection device and a hardening quality inspection method capable of improving the inspection accuracy of the hardening quality of an inspection object by correcting a measurement value having variations due to a material charge in nondestructive inspection.SOLUTION: This quality inspection device includes: a power source 2; voltage measurement means 11 for measuring a voltage generated by an inspection object 1 applied with the current by the power source 2; and quality measurement means 12 for measuring a hardening quality of the inspection object 1 from the voltage measured by the voltage measurement means 11. The quality measurement means 12 includes: a previous processing value storage part 15 for storing the measurement value by the voltage measurement means 11 before the hardening processing of the inspection object 1; a post-processing value storage part 16 for storing the measurement value after the hardening processing; and a determination part 17 for determining the hardening quality by comparing each measurement value of before and after the hardening processing stored respectively.

Abstract translation: 要解决的问题：提供一种硬化质量检查装置和硬化质量检查方法，其能够通过校正在非破坏性检查中由于材料装料引起的变化的测量值来提高检查对象的硬化质量的检查精度。解决方案： 该质量检查装置包括：电源2; 用于测量由电源2施加电流的检查对象1产生的电压的电压测量装置11; 以及用于根据由电压测量装置11测量的电压来测量检查对象1的硬化质量的质量测量装置12.质量测量装置12包括：用于通过电压测量装置存储测量值的先前处理值存储部分15 11在检查对象1的硬化处理之前; 用于存储硬化处理后的测量值的后处理值存储部16; 以及确定部17，用于通过比较分别存储的硬化处理之前和之后的每个测量值来确定硬化质量。

公开(公告)号：JP2012037412A

公开(公告)日：2012-02-23

申请号：JP2010178469

申请日：2010-08-09

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIZUTANI MASATOSHI ,  MASUDA YUI

IPC: G01N27/72 ,  B24B49/10

Abstract: PROBLEM TO BE SOLVED: To provide a Barkhausen noise inspection device which is capable of performing accurate inspection without being affected by the variance of a gap between a sensor head including an excitation coil and a noise detection sensor and an inspection object and allows miniaturization of the sensor head and is free from the problem of interference between AC magnetic field in noise detection and gap detection.SOLUTION: A Barkhausen noise inspection device includes an excitation coil 9 for magnetizing an inspection object W, a noise detection sensor for detecting Barkhausen noise emitted from the inspection object W magnetized by the excitation coil 9, and a power source 14 for supplying a current to the excitation coil 9. The device is provided with a sensor 3 for detecting a gap between the noise detection sensor and the inspection object W, and the sensor 3 is caused to generate an AC magnetic field at a frequency lower than a Barkhausen noise detection frequency band of the noise detection sensor. The device is provided with sensor output correction means 7 for correcting an output of the noise detection sensor on the basis of an output of the sensor 3.

Abstract translation: 要解决的问题：提供一种能够进行精确检查而不受包括励磁线圈和噪声检测传感器的传感器头与检查对象之间的间隙的变化的影响的巴克豪森噪声检查装置，并且允许 传感器头的小型化，无噪声检测和间隙检测中的交流磁场之间的干扰问题。 解决方案：巴克豪森噪声检测装置包括用于磁化检查对象W的励磁线圈9，用于检测由激励线圈9磁化的检查对象物W发出的巴克豪森噪声的噪声检测传感器，以及用于供给 电流到励磁线圈9.该装置设置有用于检测噪声检测传感器和检查对象W之间的间隙的传感器3，并且使传感器3产生频率低于Barkhausen的交流磁场 噪声检测传感器的噪声检测频带。 该装置设置有传感器输出校正装置7，用于基于传感器3的输出来校正噪声检测传感器的输出。版权所有：（C）2012，JPO＆INPIT

公开(公告)号：JP2011069654A

公开(公告)日：2011-04-07

申请号：JP2009219215

申请日：2009-09-24

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIZUTANI MASATOSHI ,  MASUDA YUI ,  SUZUKI KENICHI

IPC: G01N27/82 ,  G01N27/80

Abstract: PROBLEM TO BE SOLVED: To provide a Barkhausen noise inspection system capable of enhancing the detection precision of the Barkhausen noise of an inspection target by suppressing the change in the magnetic resistance of excitation caused by the measuring position of the surface to be inspected of the inspection target and dispensing with control such as the preparation of an exclusive member at every inspection target, and a Barkhausen noise inspection method.
SOLUTION: The Barkhausen noise inspection system has an excitation coil 1 for magnetizing a plurality of inspection targets Wa, Wb and Wc which are arranged in a mutual contact or proximity and a detection head KH having a detection coil 4 for detecting the Barkhausen noise emitted from the magnetized inspection targets. Further, the Barkhausen noise inspection system is equipped with a power supply for supplying an AC current which produces an AC magnetic field for magnetizing the excitation coil 1 and a Barkhausen noise detection circuit for detecting the Barkhausen noise from the signal detected by the detection coil 4.
COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种巴克豪森噪声检测系统，其能够通过抑制由待检查的表面的测量位置引起的激励磁阻的变化，从而提高检查对象的巴克豪森噪声的检测精度 的检查对象，并且在每个检查目标上分配诸如专用成员的准备等控制，以及巴克豪森噪声检查方法。 解决方案：巴克豪森噪声检测系统具有用于磁化多个以相互接触或接近配置的检查对象Wa，Wb和Wc的激励线圈1和具有用于检测Barkhausen的检测线圈4的检测头KH 磁化检测目标发出的噪音。 此外，巴克豪森噪声检查系统配备有用于提供交流电流的电源，其产生用于磁化励磁线圈1的交流磁场和用于从由检测线圈4检测的信号中检测巴克豪森噪声的巴克豪森噪声检测电路 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2010249763A

公开(公告)日：2010-11-04

申请号：JP2009101638

申请日：2009-04-20

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIZUTANI MASATOSHI ,  MASUDA YUI

IPC: G01N27/72 ,  G01V3/10

Abstract: PROBLEM TO BE SOLVED: To provide a Barkhausen noise inspecting device for enhancing the detection precision of the Barkhausen noise of an inspection target by suppressing a change in the magnetic reluctance of the excitation caused by the measuring position of the inspection surface of the inspection target. SOLUTION: The Barkhausen noise inspecting device includes an exciting coil 1 magnetizing the inspection target W, a detection head KH having a detection coil 4 for detecting the Barkhausen noise emitted from the magnetized inspection target W and a power supply 3 supplying an AC current, which produces an AC magnetic field for magnetization, to the exciting coil 1 and further provided with the extension member 7 arranged in close vicinity to the inspection target W so as to constitute a magnetic circuit arranged in series to the inspection target W to be common to the inspection target W and magnetized along with the inspection target W by the exciting coil 1. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种巴克豪森噪声检测装置，用于通过抑制由检查表面的检查表面的测量位置引起的激磁磁阻的变化来提高检查对象的巴克豪森噪声的检测精度 检查目标。 解决方案：巴克豪森噪声检测装置包括对检查对象W进行磁化的励磁线圈1，具有用于检测从磁化检查对象W发出的巴克豪森噪声的检测线圈4的检测头KH和供给AC的电源3 产生用于磁化的交流磁场的励磁线圈1，并且还设置有布置在检查对象W附近的延伸部件7，以构成与检查对象W串联布置的磁路 与检查对象W共同，并与激励线圈1的检查对象W一起被磁化。版权所有（C）2011，JPO＆INPIT