公开(公告)号：US06364419B1

公开(公告)日：2002-04-02

申请号：US09138428

申请日：1998-08-24

申请人： Steven Cannizzo ,  Leroy I. Robinson

发明人： Steven Cannizzo ,  Leroy I. Robinson

IPC分类号： E01C2316

CPC分类号： E01C23/0993 ,  E01C23/088 ,  E01C23/0946

摘要： An assembly is provided for excavating cavities in a road surface for a variety of purposes, among them, the formation of rumble strips, the installation of light reflective road markers, the milling of potholes, boring of holes for various purposes and the like. The system is used in combination with a vehicle having a motor powered vertically movable rear lift gate which in use defines a vertically displaceable substantially horizontal platform. A cutting apparatus is secured to the upward facing surface of the lift gate with the actual cutting portion being mounted on a rotatable drive shaft extending laterally of the gate, such that the cutting portion projects at least partially below the bottom surface of the lift gate, whereby with the gate in a lowered position, the cutting portion can engage the surface of the road on which the vehicle resides. A motor is secured to the upper surface of the gate powers the drive shaft. The vertical position of the lift gate is adjustible with respect to the surface of said road, to control the depth of cut and thus the degree of excavation produced by the cutting apparatus.

摘要翻译： 提供了用于在各种目的的用于挖掘路面中的空腔的组件，其中，形成隆隆条，安装光反射道路标记，铣刨坑，镗孔等用于各种目的。 该系统与具有马达驱动的可垂直运动的后升降门的车辆组合使用，该起重机在使用中限定了可垂直移位的基本上水平的平台。 切割装置固定在升降门的向上的表面上，实际的切割部分安装在从门的横向延伸的可旋转的驱动轴上，使得切割部分至少部分地突出在升降门的底面下方， 由此在门处于降低位置的情况下，切割部分可以接合车辆所在的道路的表面。 电动机固定在门的上表面上驱动驱动轴。 升降门的垂直位置相对于所述道路的表面是可调节的，以控制切割深度，从而控制切割装置产生的挖掘程度。