Wiper ring and ball screw provided with wiper ring

Details Wiper ring and ball screw provided with wiper ring Wiper ring and ball screw provided with wiper ring

2005-12-20

2005-12-20

Siconolfi, Robert A. (Department: 3683)

Machine element or mechanism

Mechanical movements

Reciprocating or oscillating to or from alternating rotary

C074S424820, C277S493000, C277S354000

Reexamination Certificate

active

06976399

ABSTRACT:
A wiper ring to be applied to a nut of a ball screw having a screw shaft comprises a plurality of segments each constituted as independent element having a seal portion to be contacted to the screw shaft, support pins extending in an axial direction of the screw shaft so as to correspond to the segments, respectively, the segments being arranged in a circumferential direction of the screw shaft to be rotatable about the pins, the pins being connected to each other through support members so as to limit the relative movement of the respective pins, and a spring member for urging the segments arranged circumferential direction of the screw shaft so as to be directed towards radially central side of the screw shaft.

REFERENCES:
patent: 1834616 (1931-12-01), Hanson
patent: 3678776 (1972-07-01), Patterson
patent: 4082296 (1978-04-01), Stein
patent: 5263724 (1993-11-01), Hansen et al.
patent: 5722294 (1998-03-01), Kobayashi et al.
patent: 2 223 282 (1990-04-01), None
patent: 2000-46142 (2000-02-01), None

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