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21. 发明授权

US08578711B2 Master cylinder 有权
标题翻译：主缸
公开(公告)号：US08578711B2
公开(公告)日：2013-11-12
申请号：US12870330
申请日：2010-08-27
申请人： Ryoichi Yagi , Naganori Koshimizu , Takato Ogiwara
发明人： Ryoichi Yagi , Naganori Koshimizu , Takato Ogiwara
IPC分类号： F15B7/08
CPC分类号： B60T11/232
摘要： A master cylinder includes a cylinder body which an operating fluid is introduced from a reservoir, a piston which is slidably fitted in the cylinder body and defines a pressure chamber inside the cylinder body, a supply pathway which is formed in the cylinder body and supplies the operating fluid from the reservoir to the pressure chamber, a bypass pathway which bypasses the supply pathway and allows the reservoir to communicate with the pressure chamber, and a check valve which is installed in the bypass pathway and opens a valve when the pressure inside the pressure chamber is lower than the pressure of the reservoir.
摘要翻译：主缸包括：缸体，其工作流体从储存器引入;活塞，其可滑动地装配在缸体中并且限定在缸体内的压力室;供应通道，其形成在缸体中并供应工作流体从储存器到压力室，旁路通路绕过供应通道并允许储存器与压力室连通;以及止回阀，其安装在旁路通路中并且当压力在压力内时打开阀门室低于储层的压力。

22. 发明授权

US07866155B2 Master cylinder and method of manufacturing the same 失效
标题翻译：主缸及其制造方法
公开(公告)号：US07866155B2
公开(公告)日：2011-01-11
申请号：US12078151
申请日：2008-03-27
申请人： Hiroki Okada , Naganori Koshimizu
发明人： Hiroki Okada , Naganori Koshimizu
IPC分类号： B60T11/16 , F15B7/08
CPC分类号： F15B7/00 , B60T11/236 , Y10T29/49236
摘要： An object of the present invention is to provide a master cylinder capable of controlling an increase in an intruding amount of a cup seal while relieving a stress concentration therein to thereby prevent the cup seal from being damaged. Provided is a master cylinder in which a piston is moved in slidable contact with an inner circumference of a cup seal held in a cylinder main body so as to pressurize a brake fluid in a pressure chamber formed of the piston and the cylinder main body, wherein an annular wall configured integrally with the cylinder main body is provided behind the cup seal. Further, a chamfered portion having a curved shape in a cross-section taken along a diameter direction of the cylinder main body is provided between the annular wall and a cylinder wall to which the piston is facing. One end of the chamfered portion is formed continuously so that a tangent thereto is in line with the annular wall, and the other end of the chamfered portion is formed to constitute a flexed portion in combination with the cylinder wall.
摘要翻译：本发明的目的是提供一种主缸，能够控制杯形密封件的侵入量的增加，同时减轻其中的应力集中，从而防止杯密封件损坏。提供一种主缸，其中活塞与保持在气缸主体中的杯形密封件的内周滑动接触，以便对由活塞和气缸主体形成的压力室中的制动流体加压，其中在杯密封件的后面设置有与气缸主体一体配置的环形壁。此外，在环形壁与活塞面对的气缸壁之间，设置沿着圆筒主体的直径方向截取的具有弯曲形状的倒角部。倒角部分的一端连续地形成，使其切线与环形壁一致，并且倒角部分的另一端形成为与气缸壁组合的弯曲部分。

23. 再颁专利

USRE40573E1 Master cylinder 有权
标题翻译：主缸
公开(公告)号：USRE40573E1
公开(公告)日：2008-11-18
申请号：US11368335
申请日：2006-03-02
申请人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
发明人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
IPC分类号： B60T11/224
CPC分类号： B60T11/224 , B60T11/26
摘要： A master cylinder of the invention supplies a brake fluid from a large diameter pressurizing chamber 56 to a small diameter hydraulic chamber 49 by opening a reverse flow checking opening and closing portion 61 by sliding movement of a stepped piston 16 forwardly, that is, fast fill and when the hydraulic pressure of the large diameter pressurizing chamber 56 rises, a control valve 86 escapes the hydraulic pressure of the large diameter pressurizing chamber 56 to a reservoir 12 to gradually lower in accordance with rise of the hydraulic pressure of the small diameter hydraulic chamber 49, thereby capable of reducing a strange feeling in a pedal feeling caused by sudden pressure release of the large diameter pressurizing chamber 56.
摘要翻译：本发明的主缸通过向前倾斜阶梯式活塞16的滑动打开反向流动检查开闭部61来将制动液从大直径加压室56供给到小直径液压室49，即快速填充并且当大直径加压室56的液压上升时，控制阀86将大直径加压室56的液压从储存器12排出，以便随着小直径液压室的液压升高逐渐降低从而能够减小由大直径加压室56的突然的压力释放引起的踏板感觉的奇怪的感觉。

24. 发明授权

US5947233A Disc brake 失效
标题翻译：盘式制动器
公开(公告)号：US5947233A
公开(公告)日：1999-09-07
申请号：US888395
申请日：1997-07-07
申请人： Kinzo Kobayashi , Naganori Koshimizu , Kazuhiro Doi , Tadashi Tamasho , Tomihiro Suenaga
发明人： Kinzo Kobayashi , Naganori Koshimizu , Kazuhiro Doi , Tadashi Tamasho , Tomihiro Suenaga
IPC分类号： F16D65/095 , F16D55/227 , F16D65/097 , F16D66/02 , F16D55/22
CPC分类号： F16D66/02 , F16D55/227 , F16D65/097 , F16D65/0972 , F16D65/0977
摘要： A disc brake includes a carrier with a pair of axially and outwardly extending arms. A pair of pad springs are mounted to the inner side of the arms. Each of the pad springs has a pair of return springs. The return springs extend radially of a rotor and have respective projections. Each of the return spring is made by bending an elongated tongue. A pair of backing plates are attached to a corresponding pair of friction pads and have lugs. A wear warning element is attached adjacent to the lug of each backing plate and has a bent portion. Each of the projections is resiliently in contact with the inner side of the bent portion so as to constantly urge the backing plate and the friction pad in a direction away from the rotor.
摘要翻译：盘式制动器包括具有一对轴向和向外延伸的臂的载体。一对垫弹簧安装在臂的内侧。每个垫簧具有一对复位弹簧。复位弹簧在转子的径向延伸并具有各自的突起。每个复位弹簧都是通过弯曲细长的舌头制成的。一对背板连接到相应的一对摩擦垫上并具有凸耳。磨损警告元件邻近每个背板的凸耳附接并具有弯曲部分。每个突起弹性地与弯曲部分的内侧接触，以便在远离转子的方向上不断地推动背板和摩擦垫。

25. 发明授权

US4270354A Master cylinder 失效
标题翻译：主缸
公开(公告)号：US4270354A
公开(公告)日：1981-06-02
申请号：US934592
申请日：1978-08-17
申请人： Naganori Koshimizu
发明人： Naganori Koshimizu
IPC分类号： B60T11/20 , F15B7/00
CPC分类号： B60T11/20
摘要： A master cylinder has a piston assembly, which includes two different diameter pistons, coaxially received in the cylinder body for slidable movement therein with the piston having reduced diameter portions at the opposing ends. A connection means, which includes a split sleeve and a cylindrical sleeve member retainer thereabout connects the two pistons by means of convex shaped portions which are located on the split sleeve which engage the reduced diameter portions of the pistons. A spring is provided between the piston assembly and connection means to normally urge the piston assembly to its return position.
摘要翻译：主缸具有活塞组件，该活塞组件包括两个不同直径的活塞，同轴地容纳在缸体中用于可滑动地移动，活塞在相对端处具有减小的直径部分。连接装置，其包括开口套筒和圆柱形套筒构件保持器，其通过位于分开套筒上的凸形部分连接两个活塞，所述凸形部分接合活塞的直径减小的部分。在活塞组件和连接装置之间提供弹簧以正常地将活塞组件推向其返回位置。

26. 发明授权

US08807668B2 Vehicle braking system and master cylinder 有权
标题翻译：车辆制动系统和主缸
公开(公告)号：US08807668B2
公开(公告)日：2014-08-19
申请号：US12730704
申请日：2010-03-24
申请人： Naganori Koshimizu , Takato Ogiwara
发明人： Naganori Koshimizu , Takato Ogiwara
IPC分类号： B60T8/88 , B60T11/18 , B60T7/04 , B60T8/42
CPC分类号： B60T11/18 , B60T7/042 , Y10S303/02
摘要： Provided are a vehicle braking system and a master cylinder which are capable of providing a good pedal feel. A valve-opening pressure for a pressure-reducing valve of the master cylinder is set higher than a hydraulic pressure which is obtained with a pressing force on a brake pedal being 500 N and lower than a hydraulic pressure obtained at a time when a booster reaches a full-load point in case of failure of the booster so as to be specialized for improving pedal feel. Required performance in case of failure of the booster is realized by a pressure-intensifying unit.
摘要翻译：提供能够提供良好的踏板感觉的车辆制动系统和主缸。主缸的减压阀的开阀压力设定为高于在制动踏板上的压力为500N并且低于在增压器达到时获得的液压压力时获得的液压压力在加速器故障的情况下的满载点，以便专门改善踏板感觉。增压器发生故障时的所需性能由压力增强单元实现。

27. 发明授权

US06840043B2 Master cylinder 有权
标题翻译：主缸
公开(公告)号：US06840043B2
公开(公告)日：2005-01-11
申请号：US10377394
申请日：2003-02-27
申请人： Takato Ogiwara , Naganori Koshimizu
发明人： Takato Ogiwara , Naganori Koshimizu
IPC分类号： B60T11/224 , F15B7/04
CPC分类号： B60T11/224
摘要： A master cylinder that can sufficiently compensate for an ineffective fluid amount at an initial stage of a stroke, even at a time of sudden braking in a case where a hydraulic control unit is disposed between the master cylinder and a brake device, is provided. The master cylinder includes a control valve that releases hydraulic pressure in a large diameter pressurizing chamber to a reservoir side when the hydraulic pressure in the large diameter pressurizing chamber reaches a fluid-release pressure corresponding to hydraulic pressure introduced via a branched flow path that branches from a communication flow path that connects a hydraulic control unit and a small diameter hydraulic chamber. A restrictor is disposed in the branched flow path for introducing the hydraulic pressure to the control valve.
摘要翻译：提供一种主缸，即使在液压控制单元配置在主缸和制动装置之间的情况下，即使在突然制动时，也能够充分地补偿行程的初始阶段的无效流体量。主缸包括一个控制阀，当大直径加压室中的液压达到对应于通过分支流路径引导的液压压力的流体释放压力时，将大直径加压室中的液压压力释放到储存器侧连接液压控制单元和小直径液压室的通信流路。限流器设置在分支流路中，用于将液压引入控制阀。

28. 发明授权

US06698202B2 Master cylinder 有权
标题翻译：主缸
公开(公告)号：US06698202B2
公开(公告)日：2004-03-02
申请号：US10084261
申请日：2002-02-26
申请人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
发明人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
IPC分类号： B60T11224
CPC分类号： B60T11/224 , B60T11/26
摘要： A master cylinder of the invention supplies a brake fluid from a large diameter pressurizing chamber 56 to a small diameter hydraulic chamber 49 by opening a reverse flow checking opening and closing portion 61 by sliding movement of a stepped piston 16 forwardly, that is, fast fill and when the hydraulic pressure of the large diameter pressurizing chamber 56 rises, a control valve 86 escapes the hydraulic pressure of the large diameter pressurizing chamber 56 to a reservoir 12 to gradually lower in accordance with rise of the hydraulic pressure of the small diameter hydraulic chamber 49, thereby capable of reducing a strange feeling in a pedal feeling caused by sudden pressure release of the large diameter pressuring chamber 56.
摘要翻译：本发明的主缸通过向前倾斜阶梯式活塞16的滑动打开反向流动检查开闭部61来将制动液从大直径加压室56供给到小直径液压室49，即快速填充并且当大直径加压室56的液压上升时，控制阀86将大直径加压室56的液压从储存器12排出，以便随着小直径液压室的液压升高逐渐降低从而能够减小由大直径加压室56的突然的压力释放引起的踏板感觉的奇怪的感觉。

29. 发明授权

US5687817A Disc brake 失效
标题翻译：盘式制动器
公开(公告)号：US5687817A
公开(公告)日：1997-11-18
申请号：US592674
申请日：1996-01-26
申请人： Kinzo Kobayashi , Naganori Koshimizu , Shinji Suzuki
发明人： Kinzo Kobayashi , Naganori Koshimizu , Shinji Suzuki
IPC分类号： F16D65/097 , F16D66/02 , F16D55/22
CPC分类号： F16D66/02 , F16D65/097 , F16D65/0972 , F16D65/0979
摘要： Wear warning elements are respectively provided in back plates of a pair of friction pads at the front side thereof with respect to a rotational direction of a disc rotor. A pad spring is disposed between the friction pads and a carrier. The pad spring includes a pair of spring portions. The spring portions are resiliently pressed against the wear warning elements to bias the friction pads away from the disc rotor, respectively. During a braking state, the friction pads are pressed against the disc rotor against the biasing force of the spring portions. When disengaging the friction pads from the disc rotor, the friction pads are moved by the biasing force of the spring portions of the pad spring, thereby enabling the friction pads to be reliably moved away from the disc rotor and preventing drag between the friction pads and the disc rotor.
摘要翻译：磨损警告元件分别设置在相对于盘形转子的旋转方向的前侧的一对摩擦垫的背板中。垫片弹簧设置在摩擦垫和载体之间。垫弹簧包括一对弹簧部分。弹簧部分弹性地压靠在磨损警告元件上，以将摩擦垫分别偏离盘转子。在制动状态下，克服弹簧部分的偏压力将摩擦垫压在盘形转子上。当将摩擦垫从盘形转子上脱离时，摩擦垫通过垫簧的弹簧部分的偏置力而移动，从而使得摩擦垫可靠地从盘形转子移开并防止摩擦垫和圆盘转子。

30. 发明授权

US5046399A Tandem type brake booster 失效
标题翻译：串联式制动助力器
公开(公告)号：US5046399A
公开(公告)日：1991-09-10
申请号：US433772
申请日：1989-11-09
申请人： Naganori Koshimizu
发明人： Naganori Koshimizu
IPC分类号： B60T13/56 , B60T13/563 , B60T13/569 , B60T13/57
CPC分类号： B60T13/57 , B60T13/563 , B60T13/569
摘要： A tandem type brake booster is disclosed which comprises a booster body, a partitioning wall partitioning the interior of the body into front and rear chambers, a valve body axially movably disposed in the body, front and rear power pistons provided with respective diaphragms associated therwith and respectively dividing the interior of the front and rear chambers into respective constant and variable pressure chambers, a plunger axially movably disposed in the valve body, and a valve mechanism disposed in the valve body to selectively introduce atmospheric air and negative pressure into the variable pressure chambers. The valve body includes a large diameter portion on which the front and rear power pistons are secured and a small diameter portion, the large diameter portion being provided adjacent to the rear end thereof with a slightly reduced diameter stepped portion, the small diameter portion being provided with a circumferentially extending groove. The booster further comprises a retainer mounted on the valve body and having an engaging portion for engaging with the groove to fix the retainer to the valve body and a retaining portion for fixedly retaining the inner circumference portions of the rear power piston and the diaphragm together and onto the stepped portion and detent means on the valve body and on the retainer for preventing the retainer from rotating relative to the valve body.
摘要翻译：公开了一种串联式制动助力器，其包括增压器主体，将主体内部分隔成前后室的分隔壁，可轴向移动地设置在主体内的阀体，设置有相应隔膜的前后动力活塞，分别将前后室的内部分成相应的恒定和可变压力室，轴向可移动地设置在阀体中的柱塞和设置在阀体中的阀机构，以选择性地将大气和负压引入可变压力室。阀体包括大直径部分，前部和后部动力活塞被固定在该大直径部分和小直径部分上，大直径部分设置成与其后端相邻地具有略微缩小的台阶部分，小直径部分设置具有周向延伸的凹槽。助推器还包括保持器，该保持器安装在阀体上并且具有用于与槽接合以将保持器固定到阀体的接合部分和用于将后动力活塞和隔膜的内圆周部分固定地保持在一起的保持部分，以及在阀体和保持器上的阶梯部分和止动装置上，以防止保持器相对于阀体旋转。

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