|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F16C-011/08 F16C-023/04 E02F-003/76|
|미국특허분류(USC)||384/213 ; 172/827 ; 384/206|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 6 인용 특허 : 0|
The invention is an improvement in a pivot assembly of the type having an inner, generally spherical bearing and an outer race mounted for movement on the bearing surface and defining a bearing-race sliding contact area. The improvement comprises an enclosed grease chamber above the sliding contact area and in gravity flow communication with such area. The assembly has a lower annular passage which can either be left open to permit grease and dirt to flush from the sliding contact area or such passage may be closed with a dynamic seal. The invention help...
In combination, (a) a dozer having a frame and a blade and (b) a pivot assembly mounting the blade to the dozer, the assembly having (a) an inner, generally spherical bearing with a bearing surface and (b) a ring-like outer race mounted for movement on the surface and defining a sliding contact area, the improvement comprising: a dome-like cap above the spherical bearing and spaced therefrom; an enclosed grease chamber positioned substantially entirely above the sliding contact area and in gravity flow communication therewith, the grease chamber being de...