公开(公告)号：US3952896A

公开(公告)日：1976-04-27

申请号：US527936

申请日：1974-11-27

Applicant: John Albert David Hayward

Inventor： John Albert David Hayward

IPC: E02F3/34 ,  E02F3/43 ,  E02F3/87

CPC classification number: E02F3/34 ,  E02F3/433

Abstract: A hydraulic linkage for tractors and other vehicles in which loader arms are turnable upwardly and downwardly relative to a fixed frame part by first and second hydraulic rams. As seen in side elevation, the pivot axis of said arms and pivotal connections of the first ram(s) are at the corners of a triangle and a pivotal connection between the arms and apparatus coupled thereto and pivotal connections of the second ram(s) are at the corners of a second and separate triangle. The first and second rams are operatively interconnected in such a way that displacement of the piston of the first ram or rams causes hydraulic pressure medium to flow to the second ram or rams and effect piston displacement therein, or vice versa.

Abstract translation: 用于拖拉机和其他车辆的液压联动装置，其中装载机臂可通过第一和第二液压柱塞相对于固定框架部分向上和向下转动。 如侧视图所示，所述臂的枢转轴线和第一压头的枢转连接处于三角形的角部，并且在臂和与其连接的装置之间的枢转连接和第二压头的枢转连接， 在第二个单独的三角形的角落。 第一和第二公柱以这样的方式可操作地相互连接，使得第一压头或公柱的活塞的移动导致液压介质流动到第二压头或柱塞并影响其中的活塞位移，反之亦然。