Ball cage for a worm-and-nut type drive unit

Details Ball cage for a worm-and-nut type drive unit Ball cage for a worm-and-nut type drive unit

1988-04-11

1989-04-18

Herrmann, Allan D.

Machine element or mechanism

Gearing

Directly cooperating gears

74459, F16H 2522

Patent

active

048215929

ABSTRACT:
The invention relates to a ball cage consisting of a cylindrical sleeve 1 provided with ball seats 7, 8 intended to receive balls 9, 10 intended to cooperate with a worm 11. The sleeve 1 is intended to be mounted in a cylindrical tube 2.
The balls 9, 10 are retained in their seats on the one hand by a narrowed portion formed at the intersection of the perforations 7, 8 containing the balls and of a helicoidal bead 13 extending over the inner face of the cage, and on the other hand by projections 15 to 18 provided at the outer ends of the perforations. The balls are forced into their seats. The ball gage is used in the operation of doors or gates.

REFERENCES:
patent: 975591 (1910-11-01), Whitney
patent: 1448426 (1923-03-01), Altgelt
patent: 2768532 (1956-10-01), Russell
patent: 3003830 (1961-10-01), Blazek et al.
patent: 3514166 (1970-05-01), Coley
patent: 4199999 (1980-04-01), Metz

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