Robert BLEVENS,Douglas Craig SWINYARD,Philip WATERHOUSE
申请号：
US16335136
公开号：
US20190223393A1
申请日:
2017.09.21
申请国别(地区):
US
年份:
2019
代理人:
摘要：
A saw apparatus includes a guide bar, a chain driver, and an endless cutting chain trained about the guide bar and the chain driver. The guide bar includes a first chain retention feature along at least a portion of its periphery, and the cutting chain includes a second chain retention feature configured to interact with the first chain retention feature such that movement of the second chain retention feature away from the guide bar is restricted. A timber-working device includes a frame, at least one pair of arms pivotally attached to the frame and configured to be controlled to grasp at least one tree, and the saw apparatus mounted to the frame.
