公开(公告)号：US3987920A

公开(公告)日：1976-10-26

申请号：US589439

申请日：1975-06-23

申请人： Donald J. Parquet ,  Marvin L. Brown ,  Carl O. Pedersen

发明人： Donald J. Parquet ,  Marvin L. Brown ,  Carl O. Pedersen

IPC分类号： E02F3/43 ,  F15B11/02 ,  E02F3/87

CPC分类号： E02F3/433

摘要： A self-leveling system for a material handling unit on a pivoted boom is disclosed herein. The self-leveling system consists of a separate valve which is automatically controlled by the actuation of a material handling valve to produce the leveling function in either the raising or lowering condition for the boom.

公开(公告)号：US4557448A

公开(公告)日：1985-12-10

申请号：US718579

申请日：1985-04-01

申请人： Marvin L. Brown ,  Ronald T. Jarrett

发明人： Marvin L. Brown ,  Ronald T. Jarrett

IPC分类号： F16B2/14 ,  F16L3/00 ,  A62C23/04

CPC分类号： F16L3/00 ,  F16B2/14

摘要： A clamping assembly for hoses which are connected between a tractor and piston-cylinders on an attached implement such as a backhoe. The clamping assembly includes a base and at least one releasable clamping element. Each hose is strung through an opening in the base and abutted against an arcuate wall. The clamping element also includes an arcuate wall which engages the opposite side of the hose. The clamping element is secured in position by a bolt fastener. The clamping element includes opposed upstanding lugs which are spaced apart far enough to permit the head of the bolt fastener to slide between them. After the head of the bolt is positioned between the lugs, it cannot be turned, and therefore, a nut may be conveniently tightened on the bolt without the need for an additional tool to hold the head of the bolt. Further, angled surfaces on the base and clamping element provide for clamping or wedging action as the bolt is tightened.

摘要翻译： 用于软管的夹紧组件，其连接在拖拉机和活塞缸之间，所述工具例如是反铲。 夹紧组件包括基部和至少一个可释放的夹紧元件。 每个软管穿过底座中的一个开口，并与一个弧形壁相接。 夹紧元件还包括与软管的相对侧接合的弧形壁。 夹紧元件通过螺栓紧固件固定就位。 夹紧元件包括相对的直立凸耳，其间隔开得足够远以允许螺栓紧固件的头部在它们之间滑动。 在螺栓的头部位于凸耳之间之后，它不能转动，因此螺母可以方便地紧固在螺栓上，而不需要额外的工具来保持螺栓的头部。 此外，当螺栓拧紧时，基座和夹紧元件上的倾斜表面提供夹紧或楔入动作。