|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||464/113 ; 464/007 ; 464/179 ; 464/183|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 4 인용 특허 : 3|
A driving shaft (3) includes an inner tube (1) and an outer tube (2) having a modified cross-section. These tubes (1, 2) are axially movable but not rotatable relative to each other for transmitting torque therebetween. The driving shaft (3) comprises a partition unit having a pair of partition walls (8a, 8b; 16) hermetically sealing at least part of the inside of the inner tube to define a grease reserving space (8A) in the inner tube on the side of its distal end. The partition wall (8a, 16) on the side of its proximal end is provided with a hose mount...
[ What is claimed is:] [1.]1. A driving shaft comprising an inner tube and an outer tube, each having a modified cross-section, said inner and outer tubes being axially movable but not rotatable relative to each other for transmitting torque between them, a pair of partition walls situated adjacent proximal and distal ends of the inner tube and hermetically sealing at least the inside of the inner tube to define a grease reserving space for grease, a hose mounting portion having an oil hole provided on said partition wall adjacent the proximal end, an oi...