Flexible rotary to linear and non-linear drive mechanism

Details Flexible rotary to linear and non-linear drive mechanism Flexible rotary to linear and non-linear drive mechanism

1981-11-13

1983-08-02

Staab, Lawrence J.

Machine element or mechanism

Gearing

Directly cooperating gears

74501R, F16H 120, F16C 110

Patent

active

043959245

ABSTRACT:
A flexible shaft has its outermost layer of windings provided with a helical gap along length of the shaft. The helical gap is formed by a flexible shaft winding machine which is programmed to uniformly intermittently discontinue coiling the windings very closely in the outermost layer to thereby uniformly leave a continuous helical space along the shaft length which forms the helical gap. A smooth-bore nut has a pair of transversely disposed pins or screws extending partially thereinto for engaging the helical gap to cause the nut to travel along an unlimited length of a rotating flexible shaft which may be curved. The pins or screws are spaced to ride in the helical gap a pitch distance apart.

REFERENCES:
patent: 2716352 (1955-08-01), Wilson
patent: 3184986 (1965-05-01), Kompanek
patent: 3798984 (1974-03-01), McMinn
patent: 3824420 (1974-07-01), Stegman et al.
patent: 4227426 (1980-10-01), Schwanz
IBM Technical Disclosure Bulletin, vol. 15, No. 4, Sep. 72, C. Yakubowski.

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