公开(公告)号：US4305213A

公开(公告)日：1981-12-15

申请号：US123082

申请日：1980-02-20

申请人： Phillip M. Pelham

发明人： Phillip M. Pelham

IPC分类号： A01G23/04

CPC分类号： A01G23/043

摘要： This invention involves new and unique apparatus suitable for safely and quickly removing a row of bare root nursery trees. More particularly, this invention teaches a lightweight and raised frame which supports a plow or blade, a power source, a seat for the operator and the controls. Weighted wheels are attached to the lightweight frame by four support members such that the wheels straddle a row of trees to be removed as the frame moves over the top of the row of trees. A U-shaped blade or plow is forced into the earth such that the blade cuts under and around the trees as the apparatus moves along a row of trees and the blade moves under the row of trees. Thus, the trees can be easily removed and the dirt shaken therefrom after the apparatus has moved past. According to one embodiment, a power source such as a small gasoline engine drives a hydraulic pump which is then used to hydraulically actuate the blade and to provide hydraulic power to four small hydraulic motors for independently driving the wheels. Thus, the lightweight frame and the weighted wheels of this invention results in four-wheel drive apparatus which is not top heavy and which is inherently safer than apparatus heretofore available.

摘要翻译： 本发明涉及适合于安全和快速地移除一排裸根苗圃的新颖独特的装置。 更具体地说，本发明教导了一种轻便和凸起的框架，其支撑犁或叶片，动力源，用于操作者的座椅和控制装置。 加权轮通过四个支撑构件附接到轻型框架，使得当框架移动到树行的顶部时，轮子跨过一排树被移除。 U形刀片或犁被迫进入地球，使得当装置沿着一排树木移动时，叶片在树下切割并在树下切割，并且叶片在树行下移动。 因此，可以容易地去除树木，并且在装置移动过去之后，泥土从其中摇动。 根据一个实施例，诸如小型汽油发动机的动力源驱动液压泵，然后液压泵用于液压致动叶片并向四个小型液压马达提供液压动力，用于独立地驱动车轮。 因此，本发明的轻质框架和加权轮导致四轮驱动装置，其不是最重的，并且比迄今可用的装置本身更安全。