公开(公告)号：US4809505A

公开(公告)日：1989-03-07

申请号：US75136

申请日：1987-07-20

申请人： Katsuaki Kamemoto ,  Ken Nakaharai

发明人： Katsuaki Kamemoto ,  Ken Nakaharai

IPC分类号： B60T8/26 ,  F15B7/00 ,  B60T11/00 ,  F15B11/00

CPC分类号： B60T8/26

摘要： A master cylinder includes a hydraulic pressure control valve having a valve member mounted in a valve body and normally held apart from a valve seat by a valve spring. The valve member is seated on the valve seat when a pressure in a pressure chamber of a housing of the master cylinder reaches a predetermined level. A control device includes a body received in the bore and having one end portion of a convex shape. The body of the control device is urged by a spring in such a manner that the one end portion projects through a port of the housing into the pressure chamber. The control device including a seat prevention mechanism operatively associating the body of the control device with the valve member so as to prevent the valve member from seating on the valve seat when upon movement of the cylinder piston beyond a predetermined stroke, the cylinder piston engages the one end portion and urges the body of the control device toward the valve member in a direction perpendicular to the axis of movement of the cylinder piston.

摘要翻译： 主缸包括液压控制阀，其具有安装在阀体中的阀构件，并且通常由气门弹簧与阀座分离。 当主缸的壳体的压力室中的压力达到预定水平时，阀构件就座于阀座上。 控制装置包括容纳在孔中并且具有凸形形状的一个端部的主体。 控制装置的主体由弹簧推动，使得一个端部突出通过壳体的端口进入压力室。 所述控制装置包括座位防止机构，其将所述控制装置的主体与所述阀构件可操作地关联，以便当所述气缸活塞超过预定行程时，阻止所述阀构件安置在所述阀座上，所述气缸活塞 一个端部并且沿着与气缸活塞的运动轴线垂直的方向将控制装置的主体推向阀构件。

公开(公告)号：US4658585A

公开(公告)日：1987-04-21

申请号：US906560

申请日：1986-09-08

申请人： Katsuaki Kamemoto ,  Hideyuki Morimoto

发明人： Katsuaki Kamemoto ,  Hideyuki Morimoto

IPC分类号： B60T11/26 ,  F15B1/26 ,  F16J3/02 ,  F15B7/10

CPC分类号： B60T11/26

摘要： A master cylinder reservoir includes a cylindrical body having an open upper end. A cap is fitted on and removably secured to the body, the cap engaging the open end of the body at a lower end portion thereof. The cap has a mounting portion formed adjacent to the lower end portion thereof. The mounting portion defines together with the upper surface of the open end of the body a circumferential space. The mounting portion has a first surface disposed in opposed spaced relation to the upper surface of the open end of the body. The mounting portion has a second surface disposed in opposed relation to the outer surface of the upper end of the body. The outer surface of the upper end is spaced from the second surface adjacent to the upper surface of the body to form a circumferential recess. A diaphragm received in the cap and having a peripheral portion received in the circumferential space and held between the first surface of the mounting portion and the upper surface of the open end of the body. The peripheral portion having a circumferential bead formed on a lower surface thereof, the bead being held in sealing engagement with the upper surface of the open end of the body. The peripheral portion of the diaphragm has an engaging section depending from its outer edge. The engaging section is received in the circumferential recess for engagement with the outer surface of the upper end of the body.

摘要翻译： 主缸储存器包括具有敞开的上端的圆柱体。 盖子安装在可拆卸地固定到主体上，盖子在其下端部分与主体的开口端接合。 盖具有邻近其下端部形成的安装部。 安装部分与主体的开口端的上表面一起形成周向空间。 安装部分具有与主体开口端的上表面相对间隔设置的第一表面。 安装部具有与主体的上端的外表面相对设置的第二表面。 上端的外表面与邻近主体上表面的第二表面间隔开以形成圆周凹槽。 容纳在盖中并且具有容纳在周向空间中的周边部分并且保持在安装部分的第一表面和主体的开口端的上表面之间的隔膜。 周边部分具有形成在其下表面上的周向胎圈，胎圈与本体开口端的上表面保持密封接合。 隔膜的周边部分具有从其外边缘悬垂的接合部分。 接合部被容纳在周向凹部中，用于与主体的上端的外表面接合。