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1. 发明专利

JP2009029307A Pneumatic booster 有权
标题翻译：气动推杆
公开(公告)号：JP2009029307A
公开(公告)日：2009-02-12
申请号：JP2007196516
申请日：2007-07-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SAIKYO KEIICHI , ENDO MITSUHIRO
IPC分类号： B60T13/57
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster stably obtaining increased hysteresis. SOLUTION: Thrust applying to a piston 42 in operation and in return of a brake pedal is increased in response to a cross sectional area of a second regulation part 46 of the piston 42 and a difference of a cross sectional area between the piston 42 and a ring 48. With this structure, hysteresis in return of the brake pedal is increased relative to hysteresis in operation of the brake pedal by an increase of the thrust applying to the piston 42. Since it is unnecessary to raise hardness of a reaction disk 12 in order to increase hysteresis, increased hysteresis is stably obtained. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供稳定地获得增加的滞后的气动助力器。解决方案：响应于活塞42的第二调节部分46的横截面积和活塞42之间的横截面积的差异，在操作中和在制动踏板返回时施加到活塞42的推力增加通过这种结构，通过增加施加到活塞42的推力，制动踏板的操作中的滞后作用使制动踏板的滞后增加。由于不需要提高反应的硬度为了增加滞后，稳定地获得增加的滞后。版权所有（C）2009，JPO＆INPIT

2. 发明专利

JP2008296788A Pneumatic booster and check valve with throttling for pneumatic booster 审中-公开
标题翻译：气动推进器和检查阀，带有用于气动升降器的止回阀
公开(公告)号：JP2008296788A
公开(公告)日：2008-12-11
申请号：JP2007146204
申请日：2007-05-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO
IPC分类号： B60T17/00
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of enhancing brake feeling and stabilizing action of a check valve, and a check valve with throttling used for the pneumatic booster.
SOLUTION: The first check valve 30 with valve-opening pressure P1 and the second check valve 37 with valve-opening pressure P2 are arranged on a passage for connecting a constant pressure chamber 5 and a negative pressure source in series, and an orifice 43 is provided on a valve element 39 of the second check valve 37. Accordingly, even when stepping-in of a brake pedal is stopped on the midway, the brake feeling can be enhanced by gradually reducing a pressure of the constant pressure chamber 5 through the orifice 43 by pressure difference generated by the valve-opening pressure P2 of the second check valve 37 and gradually raising output. Here, since an outer peripheral surface of the valve element 39 is guided in an axial direction by a guide part 54 of the valve element 45, the valve element 39 is prevented from being inclined relative to an axis and action of the second check valve 37 can be stabilized.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够增强止回阀的制动感和稳定作用的气动助力器，以及用于气动助力器的具有节流的止回阀。解决方案：具有开阀压力P1的第一止回阀30和具有开阀压力P2的第二止回阀37布置在用于串联连接恒压室5和负压源的通道上，孔43设置在第二止回阀37的阀体39上。因此，即使在中途停止制动踏板的踩踏时，也可以通过逐渐降低恒压室5的压力来提高制动感觉通过由第二止回阀37的开阀压力P2产生的压差通过孔43并逐渐升高输出。这里，由于阀元件39的外周面通过阀元件45的引导部54沿轴向被引导，因此防止阀元件39相对于轴线倾斜并且第二止回阀37的作用可以稳定下来。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007230306A Pneumatic booster 审中-公开
标题翻译：气动推杆
公开(公告)号：JP2007230306A
公开(公告)日：2007-09-13
申请号：JP2006052743
申请日：2006-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO
IPC分类号： B60T13/56
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of reducing the manufacturing cost of a rod holder by consistently supporting an output rod even if the guide length of the rod holder with respect to the output rod is reduced. SOLUTION: In the pneumatic booster, the thrust generated in a power piston 14 is output via a reaction disk 41 and an output rod 42 arranged on a front end of a valve body 19 supported by the power piston 14, and a part of the output reaction force is transmitted to an input rod 33 via the reaction disk 41 and a plunger 27. A rod holder 45 which receives one end of a return spring 50 and guides the output rod 42 by an inside diameter side cylindrical part 47 is arranged on a front end of the valve body 19. In the rod holder 45, its outer diameter side cylindrical part 48 is fitted to the front end of the valve body 19 to prevent the output rod 42 from being tilted even if the force in the inclining direction is applied thereto, and the length of the inside diameter side cylindrical part 47 is reduced. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种气动助力器，其能够通过一致地支撑输出杆来降低杆保持器的制造成本，即使杆保持器相对于输出杆的引导长度减小。解决方案：在气动助力器中，在动力活塞14中产生的推力通过反作用盘41和布置在由动力活塞14支撑的阀体19的前端上的输出杆42输出，输出反作用力的反作用力经由反作用盘41和柱塞27传递到输入杆33.杆保持器45接收复位弹簧50的一端并通过内径侧圆柱形部分47引导输出杆42，布置在阀体19的前端。在杆保持器45中，其外径侧圆柱形部分48装配到阀体19的前端，以防止输出杆42倾斜，即使在施加倾斜方向，内径侧筒部47的长度减小。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2007099276A Pneumatic booster 有权
标题翻译：气动推杆
公开(公告)号：JP2007099276A
公开(公告)日：2007-04-19
申请号：JP2007012001
申请日：2007-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO , NAKAMURA TADAAKI , TAKAYAMA TOSHIO , TAKAHASHI TETSUYA
IPC分类号： B60T13/573
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of securing the requisite braking force by raising quickly the servo force at the time of hard braking. SOLUTION: A valve body 2 is coupled with a power piston partitioning inside a housing into a constant pressure chamber (negative pressure) and a variable pressure chamber, and a brake assisting mechanism 10 is interposed between a reaction disc 3 in the valve body 2 and a plunger 9. With movement of the plunger 9, a poppet seal 12 is opened to introduce the atmosphere into the variable pressure chamber, and a thrust force is generated at the power piston. At the time of hard braking, a plunger rod 23 advances toward a sleeve 21, and a ball 30 runs off to outside to cause the plunger rod 23 to abut to a reaction rod 22 directly. This causes the brake assisting mechanism 10 to shorten, and the moving amount of the plunger 9 can be made greater without receiving a reaction force from the reaction disc 3, and it is possible to raise the servo force quickly. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过在硬制动时快速提升伺服力来确保必要的制动力的气动助力器。解决方案：阀体2与在壳体内分隔成恒压室（负压）和可变压力室的动力活塞耦合，并且制动辅助机构10插入在阀的反作用盘3之间主体2和柱塞9.随着柱塞9的移动，打开提升阀口12以将气氛引入可变压力室中，并且在动力活塞处产生推力。在硬制动时，柱塞杆23朝向套筒21前进，球30向外延伸，使柱塞杆23直接抵靠反作用杆22。由此，能够缩短制动辅助机构10，并且能够在不受到来自反作用盘3的反作用力的作用的情况下使柱塞9的移动量变大，能够迅速地提高伺服力。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2006088887A Pneumatic booster 审中-公开
标题翻译：气动推杆
公开(公告)号：JP2006088887A
公开(公告)日：2006-04-06
申请号：JP2004277083
申请日：2004-09-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO
IPC分类号： B60T13/57
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of achieving a long stroke without causing increase of pedal stepping force. SOLUTION: In starting boosting action, a vacuum valve 11A is closed, and a negative pressure passage 71 is disconnected from a valve element back surface side space 70A to be set in a negative pressure state. As an input rod 7 advances to open an atmospheric air valve 10, atmospheric air is introduced to a pressure changing chamber 4 to thrust a power piston 5, while atmospheric air is introduced to the poppet valve element back surface side space 70A, so that a valve element separating and seating part 57 of a poppet valve element 12A receives pressure on the side of the negative pressure passage in a negative pressure state in such a direction as to close a valve seat 73 for negative pressure. Spring force, or ineffective input, necessary for maintaining a vacuum valve 11A closed when the atmospheric air valve 10 is opened can be reduced. Therefore, pedal stepping force need not be increased even when a pedal ratio is lowered as required following achievement of the long stroke. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够实现长行程而不增加踏板踏力的气动助力器。解决方案：在启动增压作用时，关闭真空阀11A，将负压通道71与阀元件背面侧空间70A断开而设定为负压状态。当输入杆7前进以打开大气气门10时，大气被引入压力改变室4以推动动力活塞5，同时大气被引入提升阀元件背面侧空间70A，使得提升阀元件12A的阀元件分离和就座部分57在负压状态下在负压通道一侧的压力沿关闭用于负压的阀座73的方向。可以减小当大气阀10打开时保持真空阀11A关闭所需的弹簧力或无效输入。因此，即使在实现长行程之后所需的踏板比下降的情况下，也不需要增大踏板踏力。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2007099277A Pneumatic booster 有权
标题翻译：气动推杆
公开(公告)号：JP2007099277A
公开(公告)日：2007-04-19
申请号：JP2007012002
申请日：2007-01-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO , NAKAMURA TADAAKI , TAKAYAMA TOSHIO , TAKAHASHI TETSUYA
IPC分类号： B60T13/573
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of securing the requisite braking force by raising quickly the servo force at the time of hard braking. SOLUTION: A valve body 2 is coupled with a power piston partitioning inside a housing into a constant pressure chamber (negative pressure) and a variable pressure chamber, and a brake assisting mechanism 10 is interposed between a reaction disc 3 in the valve body 2 and a plunger 9. With movement of the plunger 9, a poppet seal 12 is opened to introduce the atmosphere into the variable pressure chamber, and a thrust force is generated at the power piston. At the time of hard braking, a plunger rod 23 advances toward a sleeve 21, and a ball 30 runs off to outside to cause a plunger rod 23 to abut to the reaction rod 22 directly. This causes the brake assisting mechanism 10 to shorten, and the moving amount of the plunger 9 can be made greater without receiving a reaction force from the reaction disc 3, and it is possible to raise the servo force quickly. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过在硬制动时快速提升伺服力来确保必要的制动力的气动助力器。解决方案：阀体2与在壳体内分隔成恒压室（负压）和可变压力室的动力活塞耦合，并且制动辅助机构10插入在阀的反作用盘3之间主体2和柱塞9.随着柱塞9的移动，打开提升阀口12以将气氛引入可变压力室中，并且在动力活塞处产生推力。在硬制动时，柱塞杆23朝向套筒21前进，球30向外延伸，使柱塞杆23直接抵靠反作用杆22。由此，能够缩短制动辅助机构10，并且能够在不受到来自反作用盘3的反作用力的作用的情况下使柱塞9的移动量变大，能够迅速地提高伺服力。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006273214A Pneumatic booster 有权
标题翻译：气动推杆
公开(公告)号：JP2006273214A
公开(公告)日：2006-10-12
申请号：JP2005097991
申请日：2005-03-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO
IPC分类号： B60T13/57 , B60T13/573
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of enhancing the responsiveness of a braking device by setting the stroke of an output rod to be larger than that of an input rod. SOLUTION: A valve body 9 is connected to a power piston 5 to demarcate a constant pressure chamber 7 and a variable pressure chamber 8. A plunger 16 is moved by an input rod 22 and a poppet valve 21 is opened to introduce the atmosphere into the variable pressure chamber 8. The power piston 5 and the valve body 9 are advanced by the differential pressure between the variable pressure chamber 8 and the constant pressure chamber 7 constantly maintained at the negative pressure, the servo force is given to an output rod 14 via a reaction disk 13, and a part of the reaction force is fed back to an input rod 22 via the reaction disk 13. During braking, the poppet valve 21 is opened by a part of the reaction force from the reaction disk 13 via a rod 37 to set the stroke of the output rod 14 to be larger than that of the input rod 22. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过将输出杆的行程设定为大于输入杆的行程来提高制动装置的响应性的气动助力器。解决方案：阀体9连接到动力活塞5以划定恒压室7和可变压力室8.柱塞16由输入杆22移动，并且提升阀21打开以引入动力活塞5和阀体9通过可变压力室8和恒定压力室7之间的压差而恒定地保持在负压下，将伺服力提供给输出杆14通过反作用盘13反作用，反作用力的一部分经由反作用盘13反馈到输入杆22.在制动期间，提升阀21通过来自反作用盘13的反作用力的一部分打开通过杆37将输出杆14的行程设定为大于输入杆22的行程。版权所有：（C）2007，JPO＆INPIT

8. 发明专利

JP2006069263A Pneumatic booster 审中-公开
标题翻译：气动推杆
公开(公告)号：JP2006069263A
公开(公告)日：2006-03-16
申请号：JP2004252140
申请日：2004-08-31
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO
IPC分类号： B60T13/573
摘要： PROBLEM TO BE SOLVED: To provide a pneumatic booster capable of achieving the long stroke without increasing the pedal stepping force. SOLUTION: An atmosphere communicating chamber 51 is provided, which is surrounded by a reaction disk 21, a valve body 6 and a plunger 8 and communicated with the atmosphere. By providing the atmosphere communicating chamber 51, the force in the direction equivalent to the spring force applying direction of a valve spring to an input rod 7 and the valve body 6 is applied between the plunger 8 (the input rod 7) and the valve body 6 when starting the boosting operation. By using the force generated by providing the atmosphere communicating chamber 51 as a part of the set load of the valve spring 15, the set load is reduced, and any invalid input can be reduced accordingly. Thus, the long stroke (and the low pedal ratio necessary followed thereby) can be achieved without increasing the pedal stepping force. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够在不增加踏板踏力的情况下实现长行程的气动助力器。解决方案：设置有由反应盘21，阀体6和柱塞8包围并与大气连通的气氛连通室51。通过设置大气连通室51，将与阀弹簧的弹簧力施加方向等同于输入杆7和阀体6的方向的力施加在柱塞8（输入杆7）和阀体 6启动升压操作时。通过使用通过将气氛连通室51设置为阀弹簧15的设定负载的一部分而产生的力，减小了设定负载，并且可以相应地减小任何无效输入。因此，可以在不增加踏板踏力的情况下实现长行程（和随之而来的低踏板比）。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2005161881A Pneumatic booster 有权
标题翻译：气动推杆
公开(公告)号：JP2005161881A
公开(公告)日：2005-06-23
申请号：JP2003399866
申请日：2003-11-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ENDO MITSUHIRO , WATANABE SHUZO
IPC分类号： B60T13/52 , B60T13/56 , B60T13/563 , F16B39/12
CPC分类号： B60T13/567
摘要： PROBLEM TO BE SOLVED: To certainly grasp reverse installation of a support plate to a rod for connecting a front shell to a rear shell by airtight inspection. SOLUTION: In this pneumatic booster, the front shell 11 is connected to the rear shell through the rod 51, a stud bolt 53 at one end of the rod 51 is penetrated through the front shell 11 and is extended to the outside thereof, a support plate 56 engaging with the stud bolt 53 is locked by the rod 51 and butted on the inner surface of the front shell 11, and a sealing member 57 is arranged in an annular groove 58 formed in the support plate 56. When a protrusion 59 is disposed on the support plate 56 and the support plate 56 is reversely installed to the stud bolt 53 (B), the protrusion 59 is butted on the front shell 11 to open the sealing by the sealing member 57, atmosphere is made to flow into a constant pressure chamber 19 through a notch 60 at the tip of the protrusion 59, and the reverse installation of the support plate 56 is detected. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：当然要抓住将支撑板反向安装到通过气密检查将前壳连接到后壳的杆上。
解决方案：在该气动助力器中，前壳11通过杆51连接到后壳，杆51的一端的双头螺栓53穿过前壳11并延伸到其外部与双头螺栓53接合的支撑板56被杆51锁定并对接在前壳11的内表面上，并且密封构件57布置在形成在支撑板56中的环形槽58中。当突起59设置在支撑板56上，支撑板56反向安装在双头螺栓53（B）上，突起59在前壳体11上对接以通过密封构件57打开密封，通过突出部59的前端处的切口60流入恒压室19，检测支撑板56的反向安装。版权所有（C）2005，JPO＆NCIPI

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