公开(公告)号：US20090008200A1

公开(公告)日：2009-01-08

申请号：US10581931

申请日：2006-01-12

申请人： Kaoru Tsubouchi ,  Yoji Inoue ,  Koichi Hashida ,  Tomoyasu Sakai

发明人： Kaoru Tsubouchi ,  Yoji Inoue ,  Koichi Hashida ,  Tomoyasu Sakai

IPC分类号： B60T11/00

CPC分类号： B60T13/57

摘要： To provide a negative pressure type booster device which has a high responsiveness even when a brake pedal is stepped on strongly and which is simplified and compact in construction. To this end, a passage 45 communicating directly with the atmosphere is provided between the internal surface of a sliding cylindrical portion 8b of a valve piston 8 and the external surface of a silencer 27, and the atmospheric air is enabled to be admitted from the passage 45 to a variable pressure chamber 6 directly without passing through the silencer 27 when an input member is advanced beyond a predetermined distance relative to the valve piston.

摘要翻译： 为了提供一种负压型增压装置，其即使在制动踏板被强力地踩踏并且结构简单且紧凑的情况下也具有高响应性。 为此，在阀活塞8的滑动圆筒形部分8b的内表面和消声器27的外表面之间设置有直接与大气连通的通道45，并且大气能够从通道 45连接到可变压力室6时，当输入构件相对于阀活塞超过预定距离时，直接不通过消音器27。

公开(公告)号：US07472968B2

公开(公告)日：2009-01-06

申请号：US11474476

申请日：2006-06-26

申请人： Kaoru Tsubouchi ,  Koichi Hashida

发明人： Kaoru Tsubouchi ,  Koichi Hashida

IPC分类号： B60T8/44

CPC分类号： B60T13/57

摘要： In a vacuum type brake booster, the reaction of output transmitted from an output shaft to a reaction member is transmitted to a valve body, a plunger, and a stepped pin. A valve mechanism, which is assembled to an axial hole of the valve body, includes an atmospheric valve seat which advances and retreats together with the plunger, a vacuum valve seat assembled to the valve body to advance and retreat, and a valve member having an atmospheric valve portion which forms an atmospheric valve in cooperation with the atmospheric valve seat and a vacuum valve portion which forms a vacuum valve in cooperation with the vacuum valve seat. The stepped pin is pushed rearward when a corresponding portion of the rear surface of the reaction member deforms and bulges rearward, and pushes the vacuum valve seat rearward in relation to the valve body.

摘要翻译： 在真空式制动助力器中，从输出轴传递到反作用件的输出反作用力传递到阀体，柱塞和阶梯销。 组装到阀体的轴向孔的阀机构包括与柱塞一起前进和后退的大气阀座，组装到阀体前进和后退的真空阀座，以及具有 与大气阀座协调形成大气阀的大气阀部分和与真空阀座一起形成真空阀的真空阀部分。 当反作用构件的后表面的对应部分向后变形并向后膨胀时，阶梯销被向后推动，并且相对于阀体向后推动真空阀座。

公开(公告)号：US07089846B2

公开(公告)日：2006-08-15

申请号：US10840785

申请日：2004-05-07

申请人： Kaoru Tsubouchi ,  Nobuyuki Hirota ,  Kenichi Kobayashi

发明人： Kaoru Tsubouchi ,  Nobuyuki Hirota ,  Kenichi Kobayashi

IPC分类号： F15B9/10

CPC分类号： B60T13/57 ,  B60T8/3275

摘要： A negative pressure type booster device possesses a valve mechanism constructed to compensate for insufficient depressing force applied to a brake pedal upon emergency braking. Upon depression of the brake pedal, first negative pressure valves contact first negative pressure valve seats to block a variable pressure chamber from communication with a constant pressure chamber, and an atmosphere valve seat is separated from an atmosphere valve to communicate the variable pressure chamber with atmosphere. A partition member thus moves forwards depending on the pressure difference between the chambers to output a propelling force from an output rod. When the brake pedal is stepped on quickly, a valve member is urged backwards by a spring member causing second negative pressure valve seats to contact second negative pressure valves and move the valve member backwards. The atmosphere valve separates from the atmosphere valve seat, and the variable pressure chamber quickly communicates with atmosphere.

摘要翻译： 负压型增压装置具有阀机构，其构造成在紧急制动时补偿施加到制动踏板的不足的压力。 在制动踏板压下时，第一负压阀接触第一负压阀座以阻止可变压力室与恒压室连通，并且大气阀座与大气阀分离以将可变压力室与大气连通 。 因此，分隔构件因此根据室之间的压差而向前移动，以从输出杆输出推进力。 当制动踏板快速踩踏时，阀构件被弹簧构件向后推动，使得第二负压阀座接触第二负压阀并向后移动阀构件。 大气阀与大气阀座分离，可变压力室与气氛快速连通。

公开(公告)号：US07080588B2

公开(公告)日：2006-07-25

申请号：US10965911

申请日：2004-10-18

申请人： Kaoru Tsubouchi ,  Yoji Inoue ,  Tomoyasu Sakai ,  Yoko Takatori

发明人： Kaoru Tsubouchi ,  Yoji Inoue ,  Tomoyasu Sakai ,  Yoko Takatori

IPC分类号： B60T13/57

CPC分类号： B60T13/575 ,  B60T8/3275 ,  B60T13/52 ,  B60T13/577

摘要： A negative pressure type booster includes a power piston, a slide valve, and a holding mechanism, among others, and assists a driver during emergency braking. The holding mechanism is adapted to hold the slide valve at a predetermined frontward position, and includes a latch member that is mounted to the power piston in such a manner as to be linearly movable in a radial direction, and a garter spring for biasing the latch member radially inward. The latch member has a hook that can be engaged with and disengaged from a hook provided on the slide valve. When a plunger moves frontward relative to the power piston by a quantity greater than a predetermined value, a push slope provided on the plunger pushes a passive slope provided on the latch member radially outward, whereby the hook of the latch member is disengaged from the hook of the slide valve.

摘要翻译： 负压型助力器包括动力活塞，滑阀和保持机构等，并且在紧急制动期间辅助驾驶员。 保持机构适于将滑阀保持在预定的向前位置，并且包括以能够沿径向可直线移动的方式安装到动力活塞的闩锁构件和用于偏置闩锁的卡箍弹簧 构件径向向内。 闩锁构件具有可以与设置在滑阀上的钩接合和分离的钩。 当柱塞相对于动力活塞向前移动大于预定值的量时，设置在柱塞上的推动斜面径向向外推动设置在闩锁构件上的被动斜面，由此闩锁构件的钩与钩脱离 的滑阀。

公开(公告)号：US20050235642A1

公开(公告)日：2005-10-27

申请号：US11110877

申请日：2005-04-21

申请人： Kaoru Tsubouchi ,  Katsuhiro Mita ,  Hideaki Iijima

发明人： Kaoru Tsubouchi ,  Katsuhiro Mita ,  Hideaki Iijima

IPC分类号： B60T11/22 ,  B60T11/08 ,  B60T11/26 ,  B60T11/28 ,  F15B7/04 ,  F15B7/08 ,  F15B7/10

CPC分类号： B60T11/28 ,  B60T11/26 ,  F15B7/08 ,  F15B7/10

摘要： A master cylinder includes a cylinder body and primary and secondary pistons slidably received in the cylinder body, thereby defining first and second pressure chambers in the cylinder body. The first and second pressure chambers communicate with a reservoir through first and second fluid passages, respectively. During automatic brake control such as traction control or vehicle stability control, hydraulic fluid is drawn from the reservoir through the first and second pressure chambers. A throttle valve is received in each of the first and second fluid passages. The throttle valves are adapted to open while the master cylinder is inoperative and to close under backflow pressure when hydraulic fluid flows from the pressure chambers toward the reservoir. The throttle valves each include a floating valve body and a valve seat. The valve seat has its radially outer portion liquid-tightly joined and fixed to the cylinder body so that the fixed position of the valve seat and the lowermost position of the floating valve body are determined by the cylinder body.

摘要翻译： 主缸包括缸体和可滑动地容纳在缸体中的主活塞和次活塞，从而在缸体中限定第一和第二压力室。 第一和第二压力室分别通过第一和第二流体通道与储存器连通。 在诸如牵引力控制或车辆稳定性控制的自动制动控制期间，液压流体通过第一和第二压力室从储存器抽出。 节流阀被容纳在第一和第二流体通道的每一个中。 当液压流体从压力室朝向储存器流动时，节流阀适于在主缸不工作时打开并且在回流压力下关闭。 节流阀各自包括浮阀体和阀座。 阀座的径向外部部分液密地接合并固定到缸体，使得阀座的固定位置和浮阀体的最低位置由缸体确定。

公开(公告)号：US20050016174A1

公开(公告)日：2005-01-27

申请号：US10897085

申请日：2004-07-23

申请人： Kaoru Tsubouchi ,  Katsuhiro Mita ,  Koji Suzuki

发明人： Kaoru Tsubouchi ,  Katsuhiro Mita ,  Koji Suzuki

IPC分类号： B60T11/20 ,  B60T11/26

CPC分类号： B60T11/20 ,  B60T11/26

摘要： A master cylinder is proposed that is simple in structure, can minimize the stroke of the piston required to seal the port, and minimize the possibility of the primary cup getting damaged. 1. The master cylinder includes a cylinder body. A primary cup is provided on a radially inner surface of the cylinder body. A primary piston is inserted in the cylinder body while kept in slide contact with the primary cup. The cylinder body has a rear wall supporting the primary cup. The rear wall has a radially inner surface formed with a plurality of grooves. A passage leading to a reservoir is provided in the rear of the grooves. The piston is formed with radial through holes corresponding to the grooves. When the piston is at the return end of its stroke, the pressure chamber defined in the cylinder body is adapted to communicate with the reservoir through the radial through holes, the grooves of the rear wall and the passage. If the master cylinder is a tandem master cylinder, all of the abovementioned elements are provided both for the first and second pressure chambers.

摘要翻译： 提出了一种结构简单的主缸，可以最小化密封端口所需的活塞冲程，并最大限度地减小主杯损坏的可能性。 主缸包括缸体。 主缸设置在缸体的径向内表面上。 主活塞被插入到缸体中，同时保持与主杯滑动接触。 缸体具有支撑主杯的后壁。 后壁具有形成有多个凹槽的径向内表面。 通向贮槽的通道设置在槽的后部。 活塞形成有对应于凹槽的径向通孔。 当活塞处于其行程的返回端时，限定在缸体中的压力室适于通过径向通孔，后壁的凹槽和通道与储存器连通。 如果主缸是串联主缸，则所有上述元件都设置用于第一和第二压力室。

公开(公告)号：US20050016172A1

公开(公告)日：2005-01-27

申请号：US10909847

申请日：2004-08-03

申请人： Kaoru Tsubouchi

发明人： Kaoru Tsubouchi

IPC分类号： B60T13/57 ,  B60T13/56 ,  B60T13/577 ,  B60T8/24

CPC分类号： B60T13/577

摘要： Disclosed is a brake booster device wherein the construction of a valve mechanism and in particular, of a negative pressure valve seat are simplified, so that the circumferential length of the negative pressure valve seat and the area through which the pressure difference between a constant pressure chamber and a variable pressure chamber acts on a negative pressure valve can be easily set or designed to meet the valve characteristic. The brake booster device is of the type that when the stepping force exerted on a brake pedal causes a plunger and an output piston to move relative to each other, switching is carried out to make a variable pressure chamber communicate with either of the atmosphere and a constant pressure chamber and that the pressure difference between the variable pressure chamber and the constant pressure chamber is thus caused to move a partition member and an output piston forward, whereby an output rod is pushed to generate pressurized brake fluid in a master cylinder. In the brake booster device of the aforementioned type, closed, elongate negative pressure valve seats are protruded from a rear end flat surface portion of the output piston to encircle passages communicating with the constant pressure chamber, while an annular valve seat is formed at the rear surface of the plunger to encircle an atmosphere leading passage. Negative pressure valves and an atmosphere valve respectively contactable with the negative pressure valve seats and the atmosphere valve seat are formed on a valve member at respective positions spaced in the axial direction. Communication passages are provided at the outer surface of the valve member between the negative pressure valves and the atmosphere valve to make the interior of the valve member with the variable pressure chamber.

摘要翻译： 公开了一种制动助力装置，其中简化了阀机构，特别是负压阀座的构造，使得负压阀座的周向长度和恒压室之间的压力差的区域 并且作用在负压阀上的可变压力室可以容易地设定或设计成满足阀的特性。 制动助力装置的类型是当施加在制动踏板上的踏力使柱塞和输出活塞相对于彼此移动时，进行切换以使可变压力室与大气和 因此使可变压力室和恒压室之间的压力差向前移动分隔构件和输出活塞，由此输出杆被推动以在主缸中产生加压的制动流体。 在上述类型的制动助力装置中，封闭的细长的负压阀座从输出活塞的后端平表面部分突出，以包围与恒压室连通的通道，同时在后部形成环形阀座 柱塞的表面环绕大气引导通道。 分别与负压阀座和大气阀座分别接触的负压阀和大气阀形成在沿轴向间隔的各个位置处的阀构件上。 在负压阀和大气阀之间的阀构件的外表面处设置通信通道，以使阀构件的内部具有可变压力室。

公开(公告)号：US06694732B2

公开(公告)日：2004-02-24

申请号：US10083373

申请日：2002-02-27

申请人： Kaoru Tsubouchi

发明人： Kaoru Tsubouchi

IPC分类号： B60T1120

CPC分类号： B60T11/20 ,  B60T11/22 ,  B60T11/236

摘要： A brake master cylinder constructed to reduce the manufacturing cost and the size of the brake master cylinder includes first and second sealing members forming at least a part of first pressure chamber, and a third sealing member forming at least a part of a second pressure chamber. The first, second and third sealing members are engaged with the inner peripheral surface of a cylinder body and with the outer peripheral surface of respective first and second pistons. An annular member is positioned between the second and third sealing members. The annular member is supported by the cylinder body with a support member such as a pin or a ring.

摘要翻译： 构造成减小制动主缸的制造成本和尺寸的制动主缸包括形成第一压力室的至少一部分的第一和第二密封构件以及形成第二压力室的至少一部分的第三密封构件。 第一，第二和第三密封构件与缸体的内周表面和相应的第一和第二活塞的外周表面接合。 环形构件定位在第二和第三密封构件之间。 环形构件由诸如销或环的支撑构件由圆柱体支撑。

公开(公告)号：US6135007A

公开(公告)日：2000-10-24

申请号：US342172

申请日：1999-06-29

申请人： Kaoru Tsubouchi

发明人： Kaoru Tsubouchi

IPC分类号： B60T13/573 ,  B60T8/48 ,  B60T13/57 ,  B60T13/575 ,  B60T13/72 ,  F15B9/10 ,  F15B13/16

CPC分类号： B60T8/4854 ,  B60T13/57 ,  B60T13/575 ,  B60T13/72

摘要： A vacuum servo apparatus capable of reducing variations in the input and output characteristics includes a housing, movable walls, a power piston, an input member, an input rod, a valve mechanism, an output rod and a reaction disk. The length of the input member in the front and rear direction is increased or decreased in accordance with a change in the air temperature.

摘要翻译： 能够减少输入和输出特性变化的真空伺服装置包括壳体，活动壁，动力活塞，输入构件，输入杆，阀机构，输出杆和反作用盘。 输入构件的前后方向的长度根据空气温度的变化而增大或减小。

公开(公告)号：US6112637A

公开(公告)日：2000-09-05

申请号：US163192

申请日：1998-09-30

申请人： Kaoru Tsubouchi ,  Akihiko Miwa

发明人： Kaoru Tsubouchi ,  Akihiko Miwa

IPC分类号： B60T8/48 ,  B60T13/569 ,  B60T13/72 ,  F15B9/17

CPC分类号： B60T13/72 ,  B60T13/569 ,  B60T8/4854

摘要： An automatically operable negative pressure type booster can be applied for a front stage pressurizing function in a braking fluid pressure control apparatus with braking and steering control. The booster includes a housing, a movable wall dividing the housing interior into a front chamber and a rear chamber, a valve housing outputting a braking force to an output rod, an input member, and a control valve. The output rod can be divided into a first member and a second member. The booster further includes an auxiliary movable wall which can be engaged with the first member, a partition wall forming an auxiliary variable pressure chamber behind the auxiliary movable wall, and an electromagnetic valve unit selectively communicating the auxiliary variable pressure chamber with the front chamber or atmosphere. Further, a negative pressure type booster which is able to achieve the smooth flow of air from a space portion into a variable pressure chamber includes a housing, a movable wall, and a plate forming a space portion between the housing and the plate. An air passage retractable in the axial direction is disposed in a constant pressure chamber and communicates the space portion with a variable pressure chamber. An electromagnetic valve unit selectively communicates the variable pressure chamber with a negative pressure source or atmosphere through the space portion and the air passage. One end portion of the air passage is engaged in an airtight manner with only the plate member.

摘要翻译： 在具有制动和转向控制的制动液压控制装置中，可以应用可自动操作的负压型助力器用于前级加压功能。 增压器包括壳体，将壳体内部分成前室和后室的可移动壁，向输出杆输出制动力的阀壳，输入构件和控制阀。 输出杆可分为第一部件和第二部件。 增压器还包括可与第一构件接合的辅助活动壁，在辅助可动壁后面形成辅助可变压力室的分隔壁和选择性地将辅助可变压力室与前室或大气连通的电磁阀单元 。 此外，能够实现空气从空间部分到可变压力室的平稳流动的负压型增压器包括壳体，可动壁和在壳体和板之间形成空间部分的板。 沿轴向缩回的空气通道设置在恒压室中，并将空间部分与可变压力室连通。 电磁阀单元通过空间部分和空气通道选择性地将可变压力室与负压源或大气连通。 空气通道的一个端部仅与板构件以气密方式接合。