Ball screw

Details Ball screw Ball screw

2006-03-28

2006-03-28

Fenstermacher, David (Department: 3682)

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

C074S424750, C074S424860

Reexamination Certificate

active

07017437

ABSTRACT:
In a ball screw drive comprising a spindle (1), a nut (3) surrounding the spindle (1), and balls (4) arranged between the spindle (1) and the nut (3), which balls (4) are in rolling contact with a screw track (2) formed on the spindle (1) and on corresponding screw tracks (7, 12) formed on rings arranged within the nut (3) comprises a deflecting region for returning the balls (4) from a run-out end of a common turn of the screw tracks (2, 7, 12) to a run-in end of this turn, the screw tracks (7, 12) of the rings arranged in the nut (3, 15) are made on front faces of these rings with the screw tracks (7, 12) of two adjacent rings defining together with the screw track (2) of the spindle (1, 18), an endless circulation channel for the balls (4).

REFERENCES:
patent: 2473743 (1949-06-01), Barnes
patent: 2924113 (1960-02-01), Orner
patent: 3009367 (1961-11-01), Striggow
patent: 3393575 (1968-07-01), Irwin
patent: 3815435 (1974-06-01), Eschenbacher et al.
patent: 4074587 (1978-02-01), Brusasco
patent: 4364282 (1982-12-01), Nilsson
patent: 4509382 (1985-04-01), Colautti et al.
patent: 4612817 (1986-09-01), Neff
patent: 4841796 (1989-06-01), Teramachi
patent: 3323345 (1985-01-01), None
patent: 4131486 (1993-03-01), None
patent: 4340624 (1994-07-01), None
patent: 8911025 (1962-03-01), None

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