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1. 发明授权

US06651429B2 Master cylinder 失效
标题翻译：主缸
公开(公告)号：US06651429B2
公开(公告)日：2003-11-25
申请号：US09928322
申请日：2001-08-13
申请人： Ichiro Ishiwata , Kazuhisa Taira , Fujio Miyamoto , Yukihiro Honda
发明人： Ichiro Ishiwata , Kazuhisa Taira , Fujio Miyamoto , Yukihiro Honda
IPC分类号： B60T11228
CPC分类号： B60T11/232 , B60T11/20 , B60T11/236
摘要： A master cylinder including a cylinder body having a cylindrical bore and an opening in the circumferential wall for a relief port communicating with the interior of hydraulic reservoir. A piston is slidably inserted into the cylindrical bore to form a hydraulic pressure generating chamber in the cylindrical bore. A cup seal is provided with an inner circumferential lip portion contacting with the piston, an outer circumferential lip portion slidably contacting with the inner circumferential wall of the cylindrical bore, and a base portion connecting the lip portions, which are so arranged as to face to the hydraulic pressure generating chamber. The cup seal cuts the communication between the hydraulic pressure generating chamber and the hydraulic reservoir through the relief port when the top end of the outer circumferential lip portion passes by the relief port. The improvement resides in means provided for rotating the cup seal relative to the cylindrical bore with movement of the piston at portions of the cup seal except those portions facing to the inner wall of the cylindrical bore.
摘要翻译：一种主缸，包括具有圆柱形孔的缸体和在周向壁中的用于与液压储存器内部连通的释放口的开口。活塞可滑动地插入圆柱形孔中，以在圆柱孔中形成液压产生室。杯形密封件设置有与活塞接触的内周唇部，与圆筒孔的内周壁可滑动接触的外周唇部，以及连接唇部的基部，液压发生室。当外周唇缘部分的顶端通过排放口时，杯形密封件通过排泄口切断液压产生室和液压容器之间的连通。改进在于提供用于相对于圆柱形孔旋转杯形密封件的装置，其中活塞在杯形密封件的部分处移动，除了面向圆柱形孔的内壁的那些部分之外。

2. 发明授权

US07181911B2 Plunger type master cylinder 有权
标题翻译：柱塞式主缸
公开(公告)号：US07181911B2
公开(公告)日：2007-02-27
申请号：US10550168
申请日：2004-04-21
申请人： Kazuyoshi Ishikawa , Ichiro Ishiwata , Kazuhisa Taira , Tetsuya Masuda , Minoru Miyahara , Kunio Yanagi
发明人： Kazuyoshi Ishikawa , Ichiro Ishiwata , Kazuhisa Taira , Tetsuya Masuda , Minoru Miyahara , Kunio Yanagi
IPC分类号： B60T11/236 , B60T11/20
CPC分类号： B60T11/232 , B60T11/236
摘要： To provide a plunger type master cylinder capable of reducing invalid stroke and preventing residual pressure without impairing durability of a seal ling (70). A piston (91) of the master cylinder has a recess (93) at its outer peripheral surface and a relief port (900) in its recess (93). The seal ring (70) has a seal coupling part (70s) on the inner periphery of the distal end part of an inner peripheral lip (701). The seal coupling part (70s) is located at the opening of the relief portion (900) on the piston (91) side when the brake is in a non-operating position. The distance between said seal coupling part (70s) and said relief port (900) is short. The seal ring (70) additionally has first and second projection parts (7006, 7002) on the inner peripheral surface of the inner peripheral lip (701). By this, a flow passage for working fluid can be obtained on the inner periphery side of the inner peripheral lip (701).
摘要翻译：提供能够减少无效行程并防止残余压力而不损害密封件（70）的耐久性的柱塞式主缸。主缸的活塞（91）在其外周面具有凹部（93）和在其凹部（93）中的释放口（900）。密封环（70）在内周唇缘（701）的前端部的内周上具有密封连接部（70s）。当制动器处于非操作位置时，密封联接部分（70s）位于活塞（91）侧上的释放部分（900）的开口处。所述密封联接部分（70s）和所述释放口（900）之间的距离较短。密封环（70）还在内周唇缘（701）的内周面上具有第一和第二突出部（7006,7002）。由此，能够在内周唇缘（701）的内周侧获得工作流体的流路。

3. 发明授权

US5379593A Liquid pressure source unit for liquid-operated booster 失效
标题翻译：用于液压助力器的液压源单元
公开(公告)号：US5379593A
公开(公告)日：1995-01-10
申请号：US143454
申请日：1993-10-26
申请人： Ichiro Ishiwata
发明人： Ichiro Ishiwata
IPC分类号： B60T8/40 , F04B11/00 , F16D31/02 , B60T13/00
CPC分类号： F04B11/0091 , B60T8/4068 , F04B11/0016
摘要： This invention not only positively reduces the vibrations and noises due to pulsation pressure generated by a hydraulic pressure pump 10, but also effectively prevents the generation of foreign sounds that may occur when a liquid-operated booster 90 is abruptly activated. For this purpose, a throttle valve unit 80 (180, 280) for greatly reducing the flow area until the pressure differential or flow rate reaches a predetermined value is provided between an accumulator 70 for accumulating pressurized liquid and the liquid-operated booster 90 which utilizes the pressurized liquid as an operation source. When the pressure accumulated within the accumulator 70 is at a predetermined value or less, the throttling function of the throttle valve unit 80 (180, 280) is cancelled.
摘要翻译：本发明不仅可以有效地减少由液压泵10产生的脉动压力引起的振动和噪声，而且有效地防止当液压助力器90突然起动时可能发生的外来声音的产生。为此，在用于积蓄加压液体的蓄能器70和利用了液压驱动的增压器90之间设置用于大大减小流量面积直到压力差或流量达到预定值的节流阀单元80（180,280）加压液体作为操作源。蓄能器70内累积的压力为预定值以下时，节流阀单元80（180,280）的节流功能被取消。

4. 发明授权

US5031405A Hydraulic reservoir of master cyclinder 失效
标题翻译：主机液压油箱
公开(公告)号：US5031405A
公开(公告)日：1991-07-16
申请号：US446326
申请日：1989-12-05
申请人： Toshiyuki Takahashi , Ichiro Ishiwata
发明人： Toshiyuki Takahashi , Ichiro Ishiwata
IPC分类号： G01F23/62 , B60T11/26 , B60T17/22 , G01F23/74 , H01H36/00 , H01H36/02
CPC分类号： B60T11/26 , B60T17/225 , G01F23/74 , H01H36/0033 , H01H36/02
摘要： In a hydraulic reservoir of a master cylinder for vehicle including: a main body having an internal space for storing brake fluid; a float provided with permanent magnet, so arranged as to be vertically movable in the internal space of the main body; a reed switch attached to the outside surface of the main body, the reed switch being actuated by magnetic force of the permanent magnet, when the float with permanent magnet is positioned under a predetermined level; and a hollow for attaching the reed switch to the outside surface of the main body, the reed switch is supported by a support member in the hollow, a rubber bush is tightly and elastically fitted to the inside wall of the hollow and a fixing member is so fitted to the hollow as to push the rubber bush to the support means, terminals of the reed switch being inserted tightly through holes of the rubber bush whereby the reed switch is held in the hollow.
摘要翻译：一种用于车辆的主缸的液压储存器，包括：具有用于储存制动液的内部空间的主体; 设置有永磁体的浮子，布置成在主体的内部空间中可垂直移动; 当具有永磁体的浮子位于预定水平面下方时，舌簧开关附接到主体的外表面，舌簧开关由永磁体的磁力驱动; 以及用于将舌簧开关安装到主体的外表面的中空部，簧片开关由中空部件中的支撑部件支撑，橡胶衬套紧密弹性地装配到中空部的内壁，并且固定部件如上所述，将橡胶衬套推到支承装置上，将该螺母安装在中空部上，将簧片开关的端子紧紧插入橡胶衬套的孔中，由此将簧片开关保持在中空部分。

5. 发明授权

US4957140A Hydraulic pressure control valve for use with brake master cylinder 失效
标题翻译：用于制动主缸的液压控制阀
公开(公告)号：US4957140A
公开(公告)日：1990-09-18
申请号：US337955
申请日：1989-04-14
申请人： Ichiro Ishiwata
发明人： Ichiro Ishiwata
IPC分类号： B60T8/26 , B60T11/16 , B60T11/20 , B60T11/34
CPC分类号： B60T8/265 , B60T11/16 , B60T11/20 , B60T11/34
摘要： In a hydraulic pressure control valve for use with a brake master cylinder, a hollow body of one-piece structure has an internal stepped bore through which outlet and inlet bores formed respectively in one and other ends of the body communicate with each other. A mounting portion to the master cylinder is provided adjacent the other end of the body. A piston is arranged in the stepped bore for reciprocative movement therealong in response to hydraulic pressure from the master cylinder. One end of the piston remote from the outlet bore has an end face serving as a valve seat. A substantially tubular cap element is arranged in the inlet bore and supports the one end of the piston. The cap element is fixed to the body by fixing arrangement which is accompanied with no relative rotation between the cap element and the body. A valve element arranged in a valve chamber defined by the cap element is normally spaced away from the valve seat, but is seated thereon when the hydraulic pressure reaches a predetermined level to move the piston toward the valve element.

6. 发明授权

US4514980A Hydraulic reservoir for tandem master cylinder 失效
标题翻译：串联主缸液压油箱
公开(公告)号：US4514980A
公开(公告)日：1985-05-07
申请号：US455243
申请日：1983-01-03
申请人： Ichiro Ishiwata
发明人： Ichiro Ishiwata
IPC分类号： B60T11/26 , B60T17/22
CPC分类号： B60T11/26 , B60T17/225
摘要： A hydraulic reservoir for tandem master cylinder includes a body formed by upper, lower and side walls, two brake fluid reserving chambers formed by two partitioning walls in the body, and oblong passages formed by the side walls and ancillary walls integrally formed with the partitioning walls to make the two brake fluid reserving chambers communicate with each other, the oblong passages being open to the two brake fluid reserving chambers, respectively, having bottoms higher by a predetermined length than the lower wall, and having at least such length that a flow amount of brake fluid between the two brake fluid reserving chambers is limited to a predetermined value on the inclination of the brake fluid level relative to the body.
摘要翻译：用于串联主缸的液压容器包括由上，下和侧壁形成的主体，由主体中的两个分隔壁形成的两个制动液储存室，以及由分隔壁一体形成的侧壁和辅助壁形成的长方形通道为了使两个制动液储存室彼此连通，所述长方形通路分别对两个制动液储存室敞开，所述两个制动液储存室具有比下壁更高预定长度的底部，并且至少具有这样的长度，在两个制动液储存室之间的制动液的制动液体相对于主体的制动液的倾斜度被限制在预定值。

7. 发明授权

US4998461A Two-part plastic piston with excess resin receiving groove 失效
标题翻译：两部分塑料活塞，多余的树脂接收槽
公开(公告)号：US4998461A
公开(公告)日：1991-03-12
申请号：US303660
申请日：1989-01-30
申请人： Ichiro Ishiwata , Tomomichi Karasuyama
发明人： Ichiro Ishiwata , Tomomichi Karasuyama
IPC分类号： B29C45/33 , B29C65/00 , B29C65/02 , B60T11/16 , F16J1/00
CPC分类号： B29C65/02 , B29C45/33 , B29C65/08 , B29C66/1122 , B29C66/322 , B29C66/5344 , B60T11/16 , F16J1/008 , B29C2045/0037 , B29L2031/7494
摘要： A plastic piston of master cylinder has a first member having a small diameter portion and a second member having a large bore portion. Excess welding resin is prevented from being leaked into a seal ring mounting groove formed on a part of the outer peripheral surface of the small diameter portion by provision of welding portions in the form of a space defined between an outer peripheral surface of the small diameter portion of the first member and the large bore portion of the second member, and a gap defined between a tip end of the small diameter portion of the first member and the bottom of the large bore portion, the space and gap being provided respectively for preventing the excess welding resin from being leaked into the seal ring mounting groove. The plastic piston has no parting lines along the seal ring mounting groove which results in achieving a superior seal effect.
摘要翻译：主缸的塑料活塞具有具有小直径部分的第一构件和具有大孔部分的第二构件。通过设置形成在小直径部分的外周面的外周面之间的空间形式的焊接部分，防止了过度焊接树脂泄漏到形成在小直径部分的外周面的一部分上的密封环安装槽中的第一部件和第二部件的大孔部分之间的间隙，以及限定在第一部件的小直径部分的末端和大孔部分的底部之间的间隙，空间和间隙分别设置用于防止过多的焊接树脂被泄漏到密封环安装槽中。塑料活塞沿着密封圈安装槽没有分型线，从而实现了优越的密封效果。

8. 发明授权

US4813450A Fluid pressure control valve 失效
标题翻译：流体压力控制阀
公开(公告)号：US4813450A
公开(公告)日：1989-03-21
申请号：US28688
申请日：1987-03-20
申请人： Ichiro Ishiwata , Keiji Nakagawa
发明人： Ichiro Ishiwata , Keiji Nakagawa
IPC分类号： B60T8/18 , B60T8/26 , B60T11/34
CPC分类号： B60T8/265 , B60T11/34 , B60T8/1831 , B60T8/26
摘要： A fluid pressure control valve includes a housing having an inner hole and a plunger movably disposed in the inner hole, the housing having inlet and non-pressure chambers defined herein at one end of the plunger and an outlet chamber defined therein at the opposite end of the plunger, the housing also having a passage communicating the outlet chamber with the inlet chamber. A valve device is disposed in the passage and openable and closable in response to movement of the plunger. A preloading spring is disposed in the housing for normally urging the plunger in a direction to open the valve device. The housing comprises a cylindrical member having one open end and a cover member closing the open end. A spring seat is disposed in the cylindrical member in engagement with the cover member, the preloading spring acting between the spring seat and the plunger. The spring seat is force-fitted in the inner hole of the housing or in the cover member.
摘要翻译：流体压力控制阀包括具有可移动地设置在内孔中的内孔和柱塞的壳体，所述壳体具有位于柱塞的一端处限定的入口和非压力室，柱塞，壳体还具有使出口室与入口室连通的通道。阀装置设置在通道中并且响应于柱塞的移动而可打开和关闭。预载弹簧设置在壳体中，用于在打开阀装置的方向上正常地推动柱塞。壳体包括具有一个开口端的圆柱形构件和封闭开口端的盖构件。弹簧座设置在与盖构件接合的圆筒形构件中，预加载弹簧作用在弹簧座和柱塞之间。弹簧座被强制安装在壳体的内孔或盖构件中。

9. 发明授权

US4615175A Hydraulic reservoir in tandem master cylinder 失效
标题翻译：串联主缸液压油箱
公开(公告)号：US4615175A
公开(公告)日：1986-10-07
申请号：US580276
申请日：1984-02-16
申请人： Ichiro Ishiwata , Toshifumi Nishimura
发明人： Ichiro Ishiwata , Toshifumi Nishimura
IPC分类号： B60T11/22 , B60T11/26 , B60T17/22 , F15B7/00
CPC分类号： B60T11/26 , B60T11/22 , B60T17/225
摘要： A hydraulic reservoir in a tandem master cylinder includes a main portion defining a fluid reservoir chamber for reserving brake fluid, two fluid supply portions defining fluid paths under the main portion, the fluid supply portions being contiguous with the main portion and an opening formed at the top, the two fluid supply portions being connected to two fluid connection portions of a tandem master cylinder body. The main portion is so shaped that one space defined by one cross section taken along one line normal to the central axis of the main portion, viewing from the top along the central axis is substantially equal to, or includes, another space defined by another cross-section taken along another line normal to the central axis of the main portion, the one cross-section being nearer the opening, and the fluid paths are so shaped that a further space defined by a futher cross-section taken along a further line normal to the central axis of the main portion at the bottom includes at least respective one parts of the cross-sections of the fluid paths at the bottom of the main portion.
摘要翻译：串联主缸中的液压容器包括限定用于储存制动流体的流体储存室的主要部分，在主要部分下方限定流体通道的两个流体供应部分，流体供应部分与主要部分相邻，两个流体供应部分连接到串联主缸体的两个流体连接部分。主要部分的形状使得由一条横截面限定的一个空间沿着垂直于主要部分的中心轴线的一条线截取，从顶部沿着中心轴线观察，基本上等于或包括由另一个交叉点限定的另一个空间该截面沿着与主要部分的中心轴垂直的另一条线截取，一个横截面更靠近开口，并且流体路径被成形为使得沿着另外的线正常的更远的横截面限定的另外的空间在底部的主要部分的中心轴线包括在主要部分的底部处的流体通道的横截面的至少相应的一部分。

10. 发明授权

US5351600A Hydraulic booster for vehicle 失效
标题翻译：汽车液压助力器
公开(公告)号：US5351600A
公开(公告)日：1994-10-04
申请号：US983295
申请日：1992-11-30
申请人： Ichiro Ishiwata
发明人： Ichiro Ishiwata
IPC分类号： B60T13/14 , F15B9/10 , B60T13/00
CPC分类号： B60T13/144
摘要： A hydraulic booster for a vehicle and more particularly an improved hydraulic booster with improved brake-relieving action, among other improvements.
摘要翻译：一种用于车辆的液压助力器，特别是具有改进的制动器释放动作的改进的液压助力器以及其他改进。

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