|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||305/110 ; 305/100|
|발명자 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 14 인용 특허 : 11|
In a track-driven tractor, stationary cutter blades are fixed to a chassis of the tractor and cooperating rotating cutter blades are fixed to a sprocket hub of the tractor. The cutting blades are operable to cut refuse entrained between the sprocket and the chassis, which tends to wrap around the associated hub, so as to avoid the build-up of refuse on the hub which otherwise can lead to unnecessary wear of the sprocket, the hub, and an assembly forming a seal between the hub and the chassis, as well as unnecessary fuel consumption.
[ What is claimed is:] [1.] A track-driven tractor comprising:a chassis;at least one track;at least one sprocket drive having a rotatable hub and a sprocket fixed to the hub for propelling said track;an engine and a drive train on the chassis for driving said sprocket drive for rotation of said hub about a substantially horizontal axis of rotation;a rotating cutter blade mounted on said sprocket drive at a location which revolves in a path around said axis of rotation, said rotating cutter blade having a cutting edge in a zone bounded by said sprocket an...