Separable three-section telescopic drive shaft

Details Separable three-section telescopic drive shaft Separable three-section telescopic drive shaft

1979-01-23

1980-12-02

Artis, Henry K.

64 4, 64 9A, E21B 1707, F16D 306

Patent

active

042363888

ABSTRACT:
In a separable three-section telescopic drive shaft, such as used for driving an agricultural implement, the shaft consists of an inner section, and a tubular outer section with a tubular intermediate section located between them in the retracted position of the shaft. A locking ball is radially movably supported within a cut-out in the intermediate section and is engageable in a recess in one of the inner and outer sections in the retracted position of the shaft and in a recess in the other of the inner and outer sections in the extended position of the shaft. A cover is attached to one end of the intermediate member and a control disc is slidably positioned within the intermediate member. A spring extends between the cover and the control disc and biases the disc against the adjacent end of the inner section for axially clamping the inner and intermediate sections together when the locking ball is seated within the recess in the inner section.

REFERENCES:
patent: 3344618 (1967-10-01), Young
patent: 3543536 (1970-12-01), Rakow
patent: 3618340 (1971-11-01), Geisthoff et al.
patent: 4107949 (1978-08-01), Wanner et al.
patent: 4136533 (1979-01-01), Okuda
patent: 4162618 (1979-07-01), Okuda

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