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公开(公告)号：US4800964A
公开(公告)日：1989-01-31
申请号：US44537
申请日：1987-05-01
CPC分类号： A01B35/22
摘要： A compact, leaf spring biased shank assembly with a shank bracket which clamps to a tube and leaves the upper portion of the tube relatively unobstructed to eliminate interference with the lift mechanism and/or implement frame. The shank bracket includes easily accessible down pressure and shank height pins for quick, effortless adjustments of the shank assembly. The leaf spring is C-shaped and is designed to approach a straightened condition as the shank moves.
摘要翻译： 紧凑的板簧偏压柄组件，其具有柄部支架，其夹持到管并且相对地不受阻碍地离开管的上部，以消除与提升机构和/或实施框架的干涉。 柄支架包括容易接近的下压和柄高度销，用于快速，轻松地调节柄组件。 板簧是C形的，并且设计成当柄移动时接近矫直状态。
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公开(公告)号：US4700641A
公开(公告)日：1987-10-20
申请号：US828002
申请日：1986-02-07
CPC分类号： A01C7/205
摘要： Press wheel gangs are pivotally connected to an implement frame by an upright pivot bracket which permits each gang to rock about both a fore-and-aft extending axis and an axis transverse to the forward direction. A pivot at the lower end of the bracket and above the forward central portion of the gang permits the gang to rock about the fore-and-aft axis to move over small obstacles and uneven terrain. The entire gang can rock upwardly about the transverse axis over larger obstacles or extremely rough terrain to eliminate extreme stressing of the gang press wheels and to assure uniform soil-firming characteristics. A compression spring assembly connected between the frame and the upper end of the bracket yieldingly biases the gang into soil-firming relationship with the ground.
摘要翻译： 按压轮组通过直立的枢轴支架枢转地连接到工具框架，该支架允许每个组合围绕前后延伸轴线和横向于向前方向的轴线摇摆。 在支架的下端和帮派的前方中央部分之上的一个枢轴允许这个帮派围绕前后轴线摇摆，以便在小障碍物和不平坦的地形上移动。 整个帮派可以围绕较大的障碍物或非常崎岖的地形围绕横向轴线向上摇摆，以消除组合压轮的极端应力并确保均匀的土体固结特性。 连接在框架和支架上端之间的压缩弹簧组件能够有效地将这个帮派偏置于与地面紧密的关系。
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