Telescopic drive shaft

Details Telescopic drive shaft Telescopic drive shaft

1979-01-08

1981-03-24

Lazarus, Ira S.

Joints and connections

Interfitted members with external bridging piece

403109, 403118, F16D 306

Patent

active

042572444

ABSTRACT:
In a telescopic drive shaft, torque is transmitted between an inner shaft member and an outer shaft member by ball-shaped roll bodies arranged in axially extending rows. The roll bodies are seated in axially extending grooves formed in each of the inner and outer shaft members. The rows of balls are located between transversely arranged guide rings or are held in a cage secured to a guide ring. The inner and outer surfaces of the guide ring are threaded and meshed with threads on the inner and outer shaft members. The pitch of the threads on the outer shaft member is opposite to the pitch of the threads on the inner shaft member.

REFERENCES:
patent: 754066 (1904-03-01), Hoffmann
patent: 3012421 (1961-12-01), Cull
patent: 3325837 (1967-06-01), Hartmann
patent: 3356424 (1967-12-01), Edwards
patent: 4075872 (1978-02-01), Geisthoff
patent: 4103514 (1978-08-01), Grosse-Entrup

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