公开(公告)号：US06438955B1

公开(公告)日：2002-08-27

申请号：US09551267

申请日：2000-04-18

申请人： Shusaku Chiba ,  Riichirou Sugimoto

发明人： Shusaku Chiba ,  Riichirou Sugimoto

IPC分类号： B60T1128

CPC分类号： B60T11/26 ,  B60T11/20 ,  B60T11/28

摘要： The object of the present invention is to exhibit the function of a throttle valve mechanism without making the whole of a master cylinder large-sized and to simplify the structure and to reduce the number of pieces of parts. In order to attain this object, the present invention has throttle valve mechanisms with a floating valve body which sits and throttles the flow of the hydraulic fluid to the reservoir from the pressure generating chambers when the pistons operate and which opens when the pistons do not operate, and the throttle valve mechanisms are arranged in the fluid passage for the supplementation of the hydraulic fluid, and the throttle valve mechanisms have a floating valve body with a throttle passage and a valve seat with and from which the floating valve body is brought into contact and is separated, and the valve seat is provided at the tip of the connecting portions to the cylinder body of the reservoir.

摘要翻译： 本发明的目的是展现节气门机构的功能，而不会使主缸的整体大型化，并且简化结构并减少零件数量。 为了实现这个目的，本发明具有节流阀机构，其具有浮动阀体，当活塞操作时，浮动阀体从压力发生室中位置并节流液压流体到储存器的流动，并且当活塞不工作时打开 并且节流阀机构设置在用于补充液压流体的流体通道中，并且节流阀机构具有带有节流通道和阀座的浮阀体，浮阀阀体与该阀座接触 并且分离，并且阀座设置在与储存器的缸体相关联的连接部的末端。

公开(公告)号：US5251446A

公开(公告)日：1993-10-12

申请号：US802273

申请日：1991-12-04

申请人： Kohei Mori ,  Riichirou Sugimoto

发明人： Kohei Mori ,  Riichirou Sugimoto

IPC分类号： B60T11/16 ,  B60T11/20 ,  B60T11/232 ,  B60T11/26 ,  F15B7/08

CPC分类号： B60T11/232 ,  B60T11/20

摘要： In a master cylinder, a communicating passage is formed in a piston guide which is disposed in a cylinder housing so that the communication passage is in communication with the through hole in said piston guide for supplying oil, and an annular spacer is interposed between the annular seal disposed at the side of the piston guide and the piston guide, an annular spacer which has a plurality of projections protruding outward from the external surface at intervals, so that the annular spacer is positioned in the cylinder housing with the projections of the annular spacer abutting the internal surface of the cylinder housing, and an oil passage is formed between the external surface of the annular spacer excluding the projections and the internal surface of the cylinder housing.

摘要翻译： 在主缸中，连接通道形成在活塞引导件中，活塞引导件设置在缸体中，使得连通通道与用于供给油的活塞导向件中的通孔连通，并且环形间隔件插入在环形 设置在活塞引导件和活塞引导件侧的密封件，环形间隔件，其具有多个突起从外表面间隔突出的突起，使得环形间隔件定位在气缸壳体中，环形间隔件的突起 邻接气缸壳体的内表面，并且在除突起之外的环形间隔件的外表面和气缸壳体的内表面之间形成油通道。

公开(公告)号：US06141963A

公开(公告)日：2000-11-07

申请号：US258926

申请日：1999-03-01

申请人： Hiroya Gotoh ,  Riichirou Sugimoto

发明人： Hiroya Gotoh ,  Riichirou Sugimoto

IPC分类号： B60T8/48 ,  B60T11/20 ,  B60T11/22

CPC分类号： B60T11/22 ,  B60T11/20 ,  B60T8/4809

摘要： There is provided a master cylinder in which a large quantity of working fluid can be supplied rapidly, the air bleeding takes less time in the manufacturing process, and satisfactory performance can be provided when traction control is operated. For the master cylinder MC, a first supply passage 19 for supplying a working fluid from a working fluid reservoir to a pressure chamber 9 through a working fluid supply port 20a, supply passages 22, 23 and 24, and a working fluid supply port 5b formed in a piston 5, a second supply passage 50 is formed in parallel with the first supply passage directly between the working fluid supply port 20a and the pressure chamber 9, and a check valve 51 is disposed in the second supply passage 50. When the pressure in the pressure chamber 9 is lower than the pressure of the working fluid reservoir, the check valve 51 is opened, thereby allowing the working fluid to flow to the pressure chamber 9, and when the pressure in the first pressure chamber 9 is higher than the pressure of the working fluid reservoir, the check valve 51 is closed, thereby inhibiting the flow of the working fluid from the pressure chamber 9 to the working fluid reservoir.

摘要翻译： 提供了一种能够快速供给大量工作流体的主缸，在制造过程中出气时间较短，并且当牵引力控制操作时可以提供令人满意的性能。 对于主缸MC，第一供应通道19用于通过工作流体供应口20a，供应通道22,23和24将工作流体从工作流体储存器供应到压力室9，以及形成的工作流体供应口5b 在活塞5中，第二供给通路50与工作液供给口20a和压力室9之间的第一供给通道平行地形成，止回阀51设置在第二供给通路50中。当压力 在压力室9的压力低于工作油箱的压力时，止回阀51打开，从而允许工作流体流向压力室9，而当第一压力室9中的压力高于 工作流体储存器的压力，止回阀51关闭，从而阻止工作流体从压力室9流到工作流体储存器。

公开(公告)号：US5560206A

公开(公告)日：1996-10-01

申请号：US427573

申请日：1995-04-24

申请人： Kunio Yanagi ,  Riichirou Sugimoto

发明人： Kunio Yanagi ,  Riichirou Sugimoto

IPC分类号： B60T11/16 ,  B60T11/20 ,  B60T7/00 ,  B01D53/02

CPC分类号： B60T11/20

摘要： An object of the present invention is to provide a master cylinder in which the buckling of spring is prevented and the packing is not damaged. To achieve this object, in a master cylinder in which a return spring is disposed between the end wall of a cylinder and a piston, and a packing fitted to the piston slides on the inner peripheral wall of the cylinder, the return spring 30 comprises a cylindrical large-diameter coil portion A with a diameter almost in contact with the inner peripheral wall of the cylinder 12 and a small-diameter coil portion B with a diameter enough smaller than the diameter of the inner peripheral wall of the cylinder 12, and the installation length of the small-diameter coil portion B is set so as to be nearly equal to a length of the range in which the packing 24 slides.

摘要翻译： 本发明的目的是提供一种主缸，其中弹簧的弯曲被防止并且包装不被损坏。 为了达到上述目的，在缸体的端壁和活塞之间配置有复位弹簧的主缸和装配在活塞上的密封件在缸体的内周壁上滑动的情况下，复位弹簧30包括： 具有与圆筒12的内周壁大致接触的直径的圆筒状的大径线圈部A和直径足够小于圆筒12的内周壁的直径的小直径线圈部B， 小直径线圈部B的安装长度被设定为与包装24滑动的范围的长度大致相等。

公开(公告)号：US5063743A

公开(公告)日：1991-11-12

申请号：US519792

申请日：1990-05-07

申请人： Kohei Mori ,  Riichirou Sugimoto

发明人： Kohei Mori ,  Riichirou Sugimoto

IPC分类号： B60T11/16 ,  B60T11/20 ,  B60T11/22 ,  F01B3/00 ,  F02F7/00

CPC分类号： B60T11/20 ,  B60T11/16 ,  B60T11/22 ,  F01B3/0085 ,  F02F7/0046

摘要： In a master cylinder, a sleeve for guiding the piston and a cap for forming a cylinder housing are connected with each other and integrally formed, and a primary piston and a secondary piston are coupled with via a retainer and thus integrally formed. Consequently, when the master cylinder is disassembled, the sleeve and the piston can be pulled out simultaneously, thereby allowing the simultaneous withdrawal of the secondary and primary pistons.

摘要翻译： 在主缸中，用于引导活塞的套筒和用于形成气缸壳体的盖彼此连接并且一体地形成，并且主活塞和次级活塞经由保持器联接并因此一体形成。 因此，当主缸拆卸时，套筒和活塞可以同时拉出，从而允许二次活塞和主活塞同时抽出。

公开(公告)号：US4932312A

公开(公告)日：1990-06-12

申请号：US200069

申请日：1988-05-27

申请人： Riichirou Sugimoto

发明人： Riichirou Sugimoto

IPC分类号： B60T11/20 ,  B60T11/232

CPC分类号： B60T11/20 ,  B60T11/232 ,  Y10T137/7834 ,  Y10T137/7939

摘要： A valve for an automotive brake master cylinder piston is disposed at the end of forward stroke of the brake master cylinder piston in a passage defined along the axis of the master cylinder piston and communicating mutually an oil reservoir and an oil outlet, and is adapted to close and open the passage when abutting upon the departing from a side wall surface of the end of forward stoke of the master cylinder piston in accordance with a forward stroke motion and a return stroke motion of the master cylinder piston. The valve comprises an extension rod extending into the opening of the passage, the extension rod being formed with a first restricting at the leading end thereof extending slidably into the opening of the passage, and also formed with a second restricting at the opposite root portion thereof adapted to operatively engage with the inner circumferential edge of one end of the passage through a tapered surface thereof, when the valve is closed, and to guide the valve to be shifted in the axial direction in such a manner that the first and second restricting may have the axis of the valve coincide with the axis of the passage at the time of closing of the valve.

摘要翻译： 用于汽车制动主缸活塞的阀在制动主缸活塞的向前行程结束时设置在沿着主缸活塞的轴线限定的通道中，并且相互连通储油器和出油口，并且适于 在主缸活塞的向前冲程运动和返回行程运动的情况下，与主缸活塞的前进档的端部的侧壁表面抵接而关闭并打开该通道。 所述阀包括延伸到所述通道的开口中的延伸杆，所述延伸杆在其前端形成有第一限制，所述第一限制件可滑动地延伸到所述通道的开口中，并且还在其相对的根部处形成有第二限制 适于通过其通过其锥形表面与所述通道的一端的内周边缘可操作地接合，当所述阀关闭时，并且引导所述阀沿轴向移动，使得所述第一和第二限制可以 在阀关闭时阀的轴线与通道的轴线重合。