초록 ▼

The invention relates to a roller spindle assembly (2) having a spindle rod (4) and a spindle nut (6) and roller bearings (10). The roller bearings are journalled between the spindle nut (6) and the spindle rod (4). The spindle rod (4) and the spindle nut (6) move relative to each other and, for a r

The invention relates to a roller spindle assembly (2) having a spindle rod (4) and a spindle nut (6) and roller bearings (10). The roller bearings are journalled between the spindle nut (6) and the spindle rod (4). The spindle rod (4) and the spindle nut (6) move relative to each other and, for a relative movement of the spindle rod to the spindle nut (6), the roller bearings (10) are displaced out of a start position. The roller bearings (10) are journalled in a cage (8) resiliently biased by a return spring (12). With the cage (8), the roller bearings (10) are guided back into the start position after a completed displacement from the start position when the spindle rod (4) and spindle nut (6) are at rest. In this way, it is not necessary to provide a conventional return of the roller bearings (10) with the aid of complex return-guide channels in the spindle nut (6).

대표청구항 ▼

[ What is claimed is:] [6.] A roller spindle assembly comprising:a spindle nut part;a spindle rod part defining a longitudinal axis;said spindle rod part and said spindle nut part conjointly defining an interface;a roller bearing system journalled at said interface to operatively interconnect said s

[ What is claimed is:] [6.] A roller spindle assembly comprising:a spindle nut part;a spindle rod part defining a longitudinal axis;said spindle rod part and said spindle nut part conjointly defining an interface;a roller bearing system journalled at said interface to operatively interconnect said spindle rod part and said spindle nut part so as to permit said parts to move relative to each other;said roller bearing system including a cage and a plurality of roller bearings journalled in said cage;said spindle rod part and said spindle nut part interacting with said roller bearings to displace said cage and said roller bearings away from a start position as said parts move relative to each other;biasing means for resiliently biasing said cage in the direction of said longitudinal axis whereby said roller bearings are returned to said start position after being displaced when said spindle rod part and said spindle nut part have come to rest; and,means for imparting a vibrational movement to one of said parts thereby facilitating the return of said roller bearings to said start position.