公开(公告)号：US20130025981A1

公开(公告)日：2013-01-31

申请号：US13638711

申请日：2011-04-08

申请人： Toshifumi Maehara ,  Daisuke Kobayashi

发明人： Toshifumi Maehara ,  Daisuke Kobayashi

IPC分类号： B60T1/06 ,  F16D65/092

CPC分类号： F16D65/0977 ,  F16D55/227 ,  F16D65/0043 ,  F16D65/0972 ,  F16D65/0975 ,  F16D65/0976 ,  F16D65/0978 ,  F16D2055/0008 ,  F16D2065/1396

摘要： Disclosed is a structure such that when pad clips are to be mounted, it is possible to handle return springs and the pad clips as integral articles, thereby facilitating mounting work. Constraining sections are provided at both axial ends of each of the pad clips. Furthermore, the return springs are composed of inner spring elements and outer spring elements. These two types of spring elements are helical torsion springs provided with helical sections. Abutting sections are provided on the spring elements, respectively. The abutting sections are pressed against the inner surfaces of the constraining sections by elastic restoring forces. Moreover, the central axes of the coil sections are substantially oriented in the rotational direction of the rotor.

摘要翻译： 公开了一种结构，使得当要安装垫夹时，可以将复位弹簧和垫夹作为一体制品，从而有助于安装工作。 限制部分设置在每个垫夹的两个轴向端部处。 此外，复位弹簧由内部弹簧元件和外部弹簧元件构成。 这两种类型的弹簧元件是设有螺旋部分的螺旋扭力弹簧。 分别在弹簧元件上提供接合部分。 通过弹性恢复力将抵接部分压靠约束部分的内表面。 此外，线圈部分的中心轴线基本上沿着转子的旋转方向定向。

公开(公告)号：US07661515B2

公开(公告)日：2010-02-16

申请号：US11407135

申请日：2006-04-20

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D69/00

CPC分类号： F16D65/092

摘要： A solid box-shape structure is constituted by fitting a torque transmitting ring 23 to a guide hole 17 on a guide plate 11 to pivotably hold a lining member 13 and fixing the guide plate 11 to a torque receive plate 3. A braking torque is directly transmitted to the guide plate 11 by the torque transmitting ring 23 by pressing the lining member 13 to a disc rotor by a first link plate 7 and a second link plate 5 arranged on an inner side of the box-shape structure. A solid structure and alleviation of processing accuracy are made to be compatible with each other by constituting transmission of a press force and transmission of a torque by independent members in this way.

摘要翻译： 实心的箱形结构是通过将导向板17上的转矩传递环23安装在引导板11上的引导孔17构成的，以可枢转地保持衬里构件13并将引导板11固定到转矩接收板3上。制动转矩直接 通过扭矩传递环23，通过第一连接板7和布置在箱形结构的内侧上的第二连接板5将衬里构件13压到盘形转子上而被传递到导向板11。 通过以这种方式构成压力的传递和独立构件的扭矩的传递，使加工精度的实质结构和减轻方式彼此兼容。

公开(公告)号：US20080302620A1

公开(公告)日：2008-12-11

申请号：US12136326

申请日：2008-06-10

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D51/00

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：US20060124407A1

公开(公告)日：2006-06-15

申请号：US11295484

申请日：2005-12-07

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D55/08

CPC分类号： F16D65/567 ,  F16D65/18 ,  F16D2121/02 ,  F16D2121/14 ,  F16D2123/00 ,  F16D2125/28 ,  F16D2125/30 ,  F16D2127/007

摘要： A parking-brake operating mechanism is provided with an adjusting spindle, a cam shaft to which a parking lever is connected, and a thrust transmitting assembly disposed between the cam shaft and the adjusting spindle. The thrust transmitting assembly includes a rolling roller which can roll between the cam shaft and the adjusting spindle. Rolling curved surfaces are provided respectively at the cam shaft and the adjusting spindle. The rolling roller is disposed in contact with the rolling curved surfaces.

公开(公告)号：US06408994B1

公开(公告)日：2002-06-25

申请号：US10032487

申请日：2002-01-02

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D6534

CPC分类号： F16D65/0006 ,  F16D65/22 ,  F16D2121/24 ,  F16D2121/26 ,  F16D2125/24 ,  F16D2125/52 ,  F16D2125/64

摘要： In a drum brake, a damper spring is provided for transmitting a shoe operating force outputted from a power lever to an input lever and for absorbing an impact force transmitted from brake shoes to the power lever via a link mechanism. The damper spring is mounted between the power lever driven by an electric motor of an operating force producing mechanism and the input lever of the link mechanism for receiving the shoe operating force outputted from the power lever for driving the shoes.

摘要翻译： 在鼓式制动器中，设有阻尼弹簧，用于将从动力杆输出的制动力传递到输入杆，并且通过连杆机构吸收从制动蹄传递到动力杆的冲击力。 阻尼器弹簧安装在由操作力产生机构的电动机驱动的动力杆和连杆机构的输入杆之间，用于接收从用于驱动鞋的动力杆输出的鞋操作力。

公开(公告)号：US06290036B1

公开(公告)日：2001-09-18

申请号：US09309882

申请日：1999-05-11

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D5100

CPC分类号： F16D65/22 ,  F16D51/52

摘要： A drum brake device including, a pair of brake shoes, a wheel cylinder, anchor pins, and a control lever. The control lever is disposed between a wheel cylinder and a secondary shoe and has a structure that the flanges and are raised from both ends of a plate-like lever body. The first flange is formed at one end of the plate-like lever body and includes a piston contact portion. The second flange is formed at the other end thereof. The surface of the second flange, which faces an anchor pin, is used as an anchor contact portion, and the surface of the second flange, which faces the secondary shoe, is used as a shoe contact portion.

摘要翻译： 一种鼓式制动装置，包括一对制动蹄，轮缸，锚销和控制杆。 控制杆设置在轮缸和副靴之间，并且具有凸缘并从板状杆体的两端升高的结构。 第一凸缘形成在板状杆体的一端，并且包括活塞接触部。 第二凸缘在其另一端形成。 第二凸缘的面向锚销的表面用作锚定接触部分，并且第二凸缘的面向副鞋的表面用作鞋接触部分。

公开(公告)号：US06131711A

公开(公告)日：2000-10-17

申请号：US96537

申请日：1998-06-12

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： F16D51/48 ,  F16D65/14 ,  F16D51/00

CPC分类号： F16D51/48 ,  F16D2127/08

摘要： Counter braking force acting on a secondary shoe is input to one end portion of a control lever supported with an anchor pin vertically provided on a backing plate in such a manner that the control lever is capable of swinging. An inner end portion in the radial direction of the control lever engages with a strut for pressing a primary shoe against a brake drum. Pressing force A with which the strut is pressing the primary shoe against the brake drum is drastically reduced when braking force, that is, the counter braking force increases and slightly reduced when the braking force, that is, the counter braking force decreases, whereby an increase or a decrease in the braking force is made automatically controllable.

摘要翻译： 作用在辅助鞋上的反制动力被输入到以垂直设置在背板上的锚定销支撑的控制杆的一个端部，使得控制杆能够摆动。 控制杆的径向内侧端部与用于将主滑块压靠在制动鼓上的支柱接合。 当制动力，即制动力减小时，制动力，即反制动力增加并略微减小时，支柱将主靴压靠在制动鼓上的压力A急剧减小， 自动控制制动力的增加或减小。

公开(公告)号：US6059077A

公开(公告)日：2000-05-09

申请号：US108504

申请日：1998-07-01

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 ,  F16D2121/02 ,  F16D2121/14

摘要： Within a wheel cylinder, a drive piston and a control piston, the base ends of which receives a hydraulic pressure from a master cylinder, are oppositely disposed while being axially aligned with each other. A primary shoe is pressed by the drive piston, and an anchor reaction force output from a secondary shoe is distributed to and loaded on an anchor portion and the control piston through a control lever. When the anchor reaction force reaches a predetermined value of force or larger, an anchor-reaction-force control link mechanism operates to move the primary shoe apart from a brake drum, thereby checking the increase of the anchor reaction force.

摘要翻译： 在轮缸内，驱动活塞和控制活塞（其基端接受来自主缸的液压）在彼此轴向对准的同时相对设置。 主滑靴由驱动活塞按压，并且从次级鞋输出的锚定反作用力通过控制杆分配到锚固部分并且通过控制杆装载到控制活塞上。 当锚定反作用力达到预定的力或更大的力时，锚固反作用力控制连杆机构可操作以将主滑靴从制动鼓分离，从而检查锚杆反作用力的增加。

公开(公告)号：US5080449A

公开(公告)日：1992-01-14

申请号：US487058

申请日：1990-03-02

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： B60T8/34 ,  B60T8/40 ,  B60T8/44 ,  B60T8/48 ,  B60T13/16

CPC分类号： B60T8/446 ,  B60T13/168 ,  B60T8/341 ,  B60T8/4045 ,  B60T8/4845

摘要： A hydraulic brake pressure control apparatus in which a relief valve is disposed in a fluid passage communicating a fluid pressure chamber of a master cylinder with an ejection end of a fluid pump for discharging a brake fluid to a reservoir when the brake fluid pressure in the fluid passage exceeds a predetermined value and the relief valve opens. An abutting direction of a valve member of the relief valve against a valve seat is the same as a discharging direction of the brake fluid during the opening operation of the relief valve.

摘要翻译： 一种液压制动压力控制装置，其中安全阀设置在使主缸的流体压力室与流体泵的喷射端连通的流体通道中，当液体中的制动流体压力 通道超过预定值并且安全阀打开。 安全阀的阀构件相对于阀座的抵接方向与安全阀的打开操作期间的制动流体的排出方向相同。

公开(公告)号：US5067881A

公开(公告)日：1991-11-26

申请号：US524021

申请日：1990-05-16

申请人： Toshifumi Maehara

发明人： Toshifumi Maehara

IPC分类号： B60T8/40 ,  F04B1/04 ,  F04B1/053

CPC分类号： B60T8/4031 ,  F04B1/0408 ,  F04B1/053

摘要： In a plunger-operated hydraulic pump, a cylinder has an ejection port extending from its upper end portion with an ejection valve provided at the ejection port. A piston and a plunger fitted in the cylinder are urged towards an eccentric cam by a first return spring and a second return spring which is stronger than the first return spring, respectively. The cylinder has a suction port in its lower end portion in such a manner that it is not closed by the plunger, so that the suction valve is opened by the downward stroke of the plunger, and during suction, the inflow resistance of the suction valve is minimized. Further, in the hydraulic pump, a plurality of cylinders are arranged at equal angular intervals so that the vibrations due to the reciprocations of the plungers are canceled by one another, thereby greatly suppressing the vibration of the cylinder block.

摘要翻译： 在柱塞操作的液压泵中，气缸具有从其上端部延伸的喷射口和设置在喷射口处的喷射阀。 安装在气缸中的活塞和柱塞通过分别比第一复位弹簧更坚固的第一复位弹簧和第二复位弹簧被推向偏心凸轮。 气缸在其下端部具有吸入口，使得其不被柱塞封闭，使得吸入阀通过柱塞的向下冲程打开，并且在吸入期间，吸入阀的流入阻力 被最小化。 此外，在液压泵中，多个气缸以相等的角度间隔布置，使得由于柱塞的往复运动引起的振动彼此抵消，从而极大地抑制气缸体的振动。