公开(公告)号：US06470662B1

公开(公告)日：2002-10-29

申请号：US09699335

申请日：2000-10-31

申请人： Terry A. Burke ,  James E. Walker, Jr.

发明人： Terry A. Burke ,  James E. Walker, Jr.

IPC分类号： A01D3473

CPC分类号： A01D34/73

摘要： A blade cutting apparatus for a rotary lawn mower. The blade cutting apparatus is defined by a plurality of blades projecting radially outward from a central hub. Each blade is defined by a first portion and a second portion, the first portion being defined by a first edge and a second edge and the second portion being defined by a third edge and a fourth edge. The first and third edges are each sharpened for enabling each blade to cut grass in two separate locations along the length of each strand of grass. Each blade is further defined by an elongated slot formed therein between the first portion and the second portion for allowing cut grass and debris to pass through each blade.

摘要翻译： 一种用于旋转割草机的刀片切割装置。 刀片切割装置由从中心毂径向向外突出的多个叶片限定。 每个叶片由第一部分和第二部分限定，第一部分由第一边缘和第二边缘限定，第二部分由第三边缘和第四边缘限定。 第一和第三边缘每个都被削尖，以使每个刀片可以沿着每条草绳的长度在两个不同的位置切割草。 每个叶片进一步由形成在其中的细长槽限定在第一部分和第二部分之间，以允许切草和碎屑穿过每个叶片。