|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 14|
A walk-behind trenching vehicle incorporating a trenching boom with an endless trenching chain. The trenching boom may be connected to a forward end of the vehicle via a pivot joint that is offset from a drive axis of the trenching chain. The boom may be movable between an operating position and a transport position via a single actuator, e.g., hydraulic cylinder.
What is claimed is: 1. A walk-behind steerable trencher, comprising: a frame comprising a forward end, a rearward end, and opposing sides; a control area proximate the rearward end of the frame; two independently powered and spaced-apart, ground-engaging tracks positioned on the opposing sides of the frame, the tracks for propelling the trencher along a ground surface; an internal combustion engine attached to the frame and operable to power the tracks; a trenching boom comprising: an elongate boom guide; an attachment arm defining a transverse pivot jo...