公开(公告)号：US6006390A

公开(公告)日：1999-12-28

申请号：US963598

申请日：1997-10-31

申请人： Randall J. Bischel ,  Daniel E. Peterson ,  Gaylord M. Pahl

发明人： Randall J. Bischel ,  Daniel E. Peterson ,  Gaylord M. Pahl

IPC分类号： E01H1/00 ,  E01H1/05 ,  E01H1/02

CPC分类号： E01H1/00 ,  E01H1/056

摘要： The present invention relates to an improved mechanism (100) for attaching a ground-engaging surface maintenance implement, preferably a front-mounted rotary sweeper (300), to a traction vehicle (200). The mechanism includes a four-bar linkage (102) to "yaw" the implement from an initial position, where the sweeper brush axis is generally perpendicular to the longitudinal axis of the traction vehicle (200), to a first or second position, characterized by the brush axis assuming an angled (i.e., non-perpendicular) orientation, the first and second positions being equal but opposite to one another. The mechanism further includes a central pivot (104) which permits the implement to "roll" or rotate preferably about a horizontal axis perpendicular to the brush axis such that the sweeper (300) can maintain ground contact across its lateral width when traversing laterally uneven terrain. The preferred mechanism also includes a force-producing device (148), selectively activated by the operator, to translate the implement from its initial position to the first or second position or anywhere in-between. Finally, the preferred embodiment of the present invention includes ground-contacting caster-wheels (318) to support or partially support the weight of the sweeper and therefore relieve the weight borne by the sweeper brushes (304).

摘要翻译： 本发明涉及一种用于将地面接合表面维护工具（优选地是前安装的旋转清扫器（300））附接到牵引车辆（200）的改进机构（100）。 该机构包括一个四杆连杆机构（102），用于将起重机器从初始位置“摆动”，其中清扫器刷轴线大致垂直于牵引车辆（200）的纵向轴线，到达第一或第二位置，其特征在于 通过刷轴线呈现成角度（即非垂直）取向，第一和第二位置彼此相等但相反。 该机构还包括一个中心枢轴（104），其允许工具优选围绕垂直于刷轴线的水平轴线“滚动”或旋转，使得当跨越横向不平坦的地形时，清扫机（300）可以在其横向宽度上保持接地接触 。 优选的机构还包括由操作者选择性地启动的力产生装置（148），以将工具从其初始位置转换到第一或第二位置或其间的任何位置。 最后，本发明的优选实施例包括地面接触脚轮（318），以支撑或部分地支撑清扫机的重量，并因此减轻了由清扫机刷（304）承载的重量。