公开(公告)号：US4922961A

公开(公告)日：1990-05-08

申请号：US391238

申请日：1989-08-09

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16K31/06 ,  B60T8/36

CPC分类号： B60T8/3645 ,  Y10T137/87217

摘要： An electromagnetic valve used in a hydraulic-pressure brake device, etc. is disclosed. The electromagnetic valve is so designed that the movement of its plungers is not hindered by the working liquid. Cylindrical members are arranged between the casing of the electromagnetic valve and its plungers, defining a bypass passage between the respective outer peripheral surfaces of the cylindrical members and the inner peripheral surface of the casing. With this structure, most of the liquid flowing with the opening/closing movement of valve members operatively connected to the plungers is allowed to flow through the bypass passage, thus making it possible to provide an electromagnetic valve having a high control responsiveness, without enlarging the size of the plungers.

摘要翻译： 公开了一种用于液压制动装置等的电磁阀。 电磁阀的设计使得其活塞的运动不受工作液体的阻碍。 圆柱形构件布置在电磁阀的壳体和其柱塞之间，在圆柱形构件的各个外周表面和壳体的内周表面之间限定旁路通道。 利用这种结构，允许可操作地连接到柱塞的阀构件的打开/关闭运动流动的大部分液体流过旁路通道，从而可以提供具有高控制响应性的电磁阀，而不会扩大 柱塞的尺寸。

公开(公告)号：US08235189B2

公开(公告)日：2012-08-07

申请号：US12136326

申请日：2008-06-10

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D51/24

CPC分类号： F16D65/22 ,  F16D65/09 ,  F16D2121/02 ,  F16D2125/04 ,  F16D2125/06 ,  F16D2125/64

摘要： A cylinder body 60 of a wheel cylinder assembly 6 for expanding a pair of brake shoes 3 and 4 by a pair of pistons 31 and 32 brought into contact with the respective brake shoes has a shape of a single straight pipe with both ends which are opened. The cylinder body 60 includes a first cylinder portion 35 for the one 32 of the pistons and a second cylinder portion 34 for the other 31 of the pistons. A valve seat 43 of a control valve 39 is arranged between the cylinder portions 34 and 35.

摘要翻译： 用于通过与相应的制动蹄接触的一对活塞31和32使一对制动蹄片3和4膨胀的轮缸组件6的圆筒体60具有单个直管的形状，其两端被打开 。 缸体60包括用于一个32个活塞的第一气缸部分35和用于另外31个活塞的第二气缸部分34。 控制阀39的阀座43设置在缸部34和35之间。

公开(公告)号：US20060260885A1

公开(公告)日：2006-11-23

申请号：US11434792

申请日：2006-05-17

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D55/00

CPC分类号： F16D65/0977 ,  F16D65/0972 ,  F16D2055/0008

摘要： A support member is provided with an inner side attaching member and a pair of torque receiving members. Each of the torque receiving members is provided with a drawing anchor portion. A cross-section of the drawing anchor portion is formed into an L-shape, an end portion of which is bent to an outer diameter side of the rotor. An engaging protrusion is provided in a pad. The engaging protrusion is opposed to the drawing anchor portion in the circumferential direction.

摘要翻译： 支撑构件设置有内侧安装构件和一对扭矩接收构件。 每个扭矩接收构件设置有拉伸锚固部分。 拉伸锚定部分的横截面形成为L形，其端部弯曲到转子的外径侧。 接合突起设置在垫中。 接合突起在周向上与牵引锚定部相对。

公开(公告)号：US20060054425A1

公开(公告)日：2006-03-16

申请号：US11203145

申请日：2005-08-15

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D55/00

CPC分类号： F16D55/2262 ,  F16D55/226 ,  F16D65/095 ,  F16D65/0972 ,  F16D65/0977 ,  F16D2055/0008 ,  F16D2055/007

摘要： A support member 3a for supporting a caliper 2a and pads 10a and 10b includes an inner-side mounting member 17 disposed inwardly of an inner side of a rotor, and a torque receiving member 18 which is separate from the inner-side mounting member 17. The inner-side mounting member 17 and the torque receiving member 18 are connected together by bolts 21 at a position disposed radially outwardly of an outer peripheral edge of the rotor. With this construction, the inner-side mounting member 17 and the torque receiving member 18 can be formed respectively into simple shapes, and besides an operation for machining the torque receiving member 18 can be easily carried out. By doing so, the above problem can be solved.

摘要翻译： 用于支撑卡钳2a和垫10a和10b的支撑构件3a包括设置在转子内侧内侧的内侧安装构件17和与内侧相分离的转矩承受构件18 安装构件17。 内侧安装构件17和扭矩承受构件18通过螺栓21连接在设置在转子的外周边缘的径向外侧的位置。 通过这种结构，内侧安装构件17和扭矩接收构件18可以分别形成为简单的形状，并且除了可以容易地进行用于加工扭矩接收构件18的操作之外。 通过这样做，可以解决上述问题。

公开(公告)号：US06286643B1

公开(公告)日：2001-09-11

申请号：US09800587

申请日：2001-03-08

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D5100

CPC分类号： F16D51/48 ,  F16D65/22 ,  F16D65/565 ,  F16D2121/02 ,  F16D2121/14 ,  F16D2123/00 ,  F16D2125/64

摘要： A parking brake mechanism in the duo-servo type drum brake includes a link type shoe drive mechanism for expanding a pair of brake shoes and an operating force generator for inputting a shoe operating force into an input lever of the shoe drive mechanism according to the brake operation. The parking brake mechanism also includes a parking brake lever pivotally supported by one brake shoe, wherein a shoe operating force is inputted into the input lever by swing of the parking brake lever, and the brake shoes are expanded via the shoe drive mechanism.

公开(公告)号：US5964324A

公开(公告)日：1999-10-12

申请号：US953508

申请日：1997-10-17

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D51/52 ,  F16D65/14 ,  F16D65/22 ,  F16D51/00

CPC分类号： F16D51/52 ,  F16D65/22 ,  F16D2121/02 ,  F16D2121/14 ,  F16D2127/007 ,  F16D2127/08

摘要： A wheel cylinder for expanding the opposed edges at one longitudinal end of a pair of brake shoes includes a pair of drive pistons for pressing the ends of the respective brake shoes under a hydraulic pressure supplied to the first pressure chamber, and a pair of control pistons which receive at the base ends the hydraulic pressure from the master cylinder and receive at the front ends anchor reaction force by way of levers, the control pistons being displaced to close a normally-open input control valve for supplying hydraulic pressure to the first pressure chamber when the anchor reaction force becomes larger than the hydraulic pressure received from the master cylinder by a predetermined magnifying power. Accordingly, it is possible to increase the stability of the braking effect of a duo-servo type drum brake.

摘要翻译： 用于在一对制动蹄的一个纵向端部扩展相对边缘的轮缸包括一对驱动活塞，用于在供应到第一压力室的液压下挤压各个制动蹄的端部，以及一对控制活塞 其在基部处接收来自主缸的液压并且通过杠杆接收在前端的锚定反作用力，控制活塞被移位以关闭常开的输入控制阀，以将液压供应到第一压力室 当锚定反作用力大于从主缸接收的预定的放大倍率的液压时。 因此，可以提高双伺服型鼓式制动器的制动效果的稳定性。

公开(公告)号：US5069508A

公开(公告)日：1991-12-03

申请号：US466636

申请日：1990-01-17

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： B60T8/175 ,  B60T8/36 ,  B60T8/44 ,  B60T8/48 ,  B60T11/16 ,  B60T13/00 ,  B60T13/16

CPC分类号： B60T8/4845 ,  B60T13/165 ,  B60T8/368 ,  B60T8/441 ,  B60T8/446

摘要： A brake hydraulic pressure control apparatus providing anti-lock control for preventing the locking of vehicle wheels during braking and providing traction control to prevent slipping of the vehicle wheels during starting or accelerating of the vehicle, the apparatus comprises a master cylinder assembly including a body portion and an adaptor portion removably attached to an end of the body portion. A distributor assembly removably attached to the master cylinder assembly includes a predetermined number of control channels for controlling vehicle wheels and a predetermined number of electromagnetic valves corresponding to the predetermined number of control channels. The electromagnetic valves are disposed in hydraulic passages for performing anti-lock and traction control on the vehicle wheels. An anti-lock control electromagnetic valve having opposed ends is disposed between the body portion and the adaptor portion, wherein the anti-lock control valve includes a first and second ports. A first receiving portion formed in the master cylinder body portion removably receives the first port of the anti-lock control valve. A second receiving portion formed in the adaptor portion removably receives the second port of the anti-lock control valve. The apparatus further comprises a traction control valve removably disposed between the arm portion of the reservoir and an upper portion of the adaptor portion.

摘要翻译： 一种制动液压控制装置，其提供防抱死控制，用于在制动期间防止车轮锁定，并提供牵引力控制以防止车辆在车辆起动或加速期间滑动，该装置包括主缸组件，该主缸组件包括主体部分 以及可拆卸地附接到主体部分的端部的适配器部分。 可拆卸地附接到主缸组件的分配器组件包括用于控制车轮的预定数量的控制通道和对应于预定数量的控制通道的预定数量的电磁阀。 电磁阀设置在用于在车轮上进行防抱死和牵引控制的液压通道中。 具有相对端的防锁控制电磁阀设置在主体部分和适配器部分之间，其中防锁控制阀包括第一和第二端口。 形成在主缸主体部分中的第一接收部分可拆卸地接收防锁控制阀的第一端口。 形成在适配器部分中的第二接收部分可拆卸地接收防锁控制阀的第二端口。 该装置还包括可移除地设置在储存器的臂部分和适配器部分的上部之间的牵引控制阀。

公开(公告)号：US4360237A

公开(公告)日：1982-11-23

申请号：US207777

申请日：1980-11-17

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： B60T8/28 ,  B60T11/34 ,  B60T8/14

CPC分类号： B60T11/34 ,  B60T8/282

摘要： A deceleration sensing type fluid pressure control device for vehicle brake system having a control piston; a proportioning action mechanism capable of varying the reducing value of output pressure from input pressure in relation to a load imposed on the control piston; an adjusting piston one end of which is connected to a fluid pressure source through a passage arrangement; and a valve mechanism which is disposed in the passage arrangement and closes when the deceleration of the vehicle reaches a predetermined value. The fluid pressure control device is provided with a swaying lever which has a middle point thereof serving as a fulcrum. One end of the lever engages the control piston. Between the other end of the lever and the other end of the adjusting piston, there is provided a control spring which imposes the above stated load on the control piston.

摘要翻译： 一种用于具有控制活塞的车辆制动系统的减速度感测型流体压力控制装置; 比例动作机构，其能够相对于施加在所述控制活塞上的负载改变输入压力的减小值; 调节活塞，其一端通过通道装置连接到流体压力源; 以及阀机构，其设置在通道装置中，并且当车辆的减速度达到预定值时闭合。 流体压力控制装置设置有作为支点的中点的摇摆杆。 杠杆的一端接合控制活塞。 在杠杆的另一端和调节活塞的另一端之间，设置有控制弹簧，其将上述负载施加在控制活塞上。

公开(公告)号：US4335736A

公开(公告)日：1982-06-22

申请号：US169723

申请日：1980-07-17

申请人： Toshifumi Maehara ,  Tomohiro Fujita

发明人： Toshifumi Maehara ,  Tomohiro Fujita

IPC分类号： B60T8/26 ,  B60T11/34 ,  G05D11/03

CPC分类号： B60T8/26 ,  B60T11/34 ,  Y10T137/2564 ,  Y10T137/2708

摘要： A double piping type hydraulic pressure control device in which hydraulic pressure control of a hydraulic pressure channel A is transmitted to another channel B in such a manner that the hydraulic pressure to be exerted on a balance piston for hydraulic pressure control is obtained solely from the hydraulic pressures of the two output chambers while two input hydraulic pressures are arranged to have nothing to do with the control action.

摘要翻译： 一种液压通道A的液压控制被传递到另一个通道B的双重管道型液压控制装置，使得仅施加液压控制的平衡活塞上的液压被从液压 两个输出室的压力，而两个输入液压被设置成与控制动作无关。

公开(公告)号：US07178645B2

公开(公告)日：2007-02-20

申请号：US10910340

申请日：2004-08-04

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D65/14

CPC分类号： F16D65/18 ,  F16D65/567 ,  F16D2121/02 ,  F16D2121/14 ,  F16D2123/00 ,  F16D2125/06

摘要： A brake apparatus having an automatic clearance adjusting mechanism with an overadjustment preventer constituted such that a piston is constituted by a structure of being divided in a plug piston 16 and a ring piston 14. The plug piston 16 is integrated with an adjusting nut 20, a bearing 21, a bearing support plate 22 and a spring holder 23. An outer side claw portion 23a of the holder is locked by an outer side groove 16 of the plug piston. The plug piston 16 integrated with the respective parts is inserted to fit to the ring piston 14 to thereby prevent the outer side claw portion 23a of the holder from being detached.

摘要翻译： 具有自动间隙调节机构的制动装置具有过调制防止器，其构造成使得活塞由分成塞子活塞16和环形活塞14的结构构成。 塞子活塞16与调节螺母20，轴承21，轴承支撑板22和弹簧保持器23一体化。 保持架的外侧爪部23a由插塞活塞的外侧槽16锁定。 与各部分一体化的塞子活塞16被插入以与环形活塞14配合，从而防止保持器的外侧爪部分23a脱离。