| 摘要 |
In a device for scraping off a circumferential surface, wetted with a fluid, of a rod which is movable in an axial direction, comprising at least two scraper lamellas (23a, b) of equal shape which are mutually offset relative to each other in axial direction and having radial variability, and which, with a radial protrusion, are received on a common holder ring (21) which is provided with radial inner open annular grooves for the said lamellas (23a, b) and has likewise radial variability, and which, due to a spring arrangement associated with its radial outer surface, can be reduced in size in a radial direction an optimal scraping effect of ali scraper lamellas (23a, b) of a common holder ring (21) can be attained in that at least the rear lamella (23a) in the moving direction of the rod (11) is radially resilientiy supported relative to the groove bottom of the associated annular groove. |
