公开(公告)号：US07818886B1

公开(公告)日：2010-10-26

申请号：US11740039

申请日：2007-04-25

申请人： Matthew Wade Grindstaff ,  Robert F. McDowell

发明人： Matthew Wade Grindstaff ,  Robert F. McDowell

IPC分类号： B27B17/02 ,  B27B17/04

CPC分类号： B27B17/02 ,  B27B17/04

摘要： An anti-pinch chainsaw bar assembly for enabling the extraction of chainsaw bars when bound or pinched during cutting includes rolling bearing members integrated into outer surfaces of the bar. The bearings are arranged in groups of at least two bearings in rolling contact with one another. At least one bearing in each group extends outwardly from each outer surface of the bar. The assembly preferably also includes wedge structures mounted on the distal end of the bar for spreading out the sides of a cut.

摘要翻译： 一种用于在切割期间结合或夹紧时能够提取链锯的反夹具链锯组件包括集成到杆的外表面中的滚动轴承构件。 轴承以至少两个彼此滚动接触的轴承组成。 每个组中的至少一个轴承从杆的每个外表面向外延伸。 组件优选地还包括安装在杆的远端上的楔形结构，用于展开切割的侧面。