Expanding shaft

Details Expanding shaft Expanding shaft

1997-01-27

1998-05-05

Darling, John P.

Winding, tensioning, or guiding

Coil holder or support

Radially expansible or contractile

B65H 7524

Patent

active

057463867

ABSTRACT:
An expanding cylindrical shaft has a plurality of radially disposed slots extending longitudinally and opening at the outer surface for supporting one or more tubular supports having side edges and disposed coaxially on said shaft. A plurality of sliders driven by a thruster is disposed within one of the slots for radial movement. A plurality of bucking elements supported for longitudinal movement relative to one of said sliders is adapted to engage side edges of the tubular supports. A locking element secures the bucking elements in position longitudinally of the shaft to thereby lock one or more tubular supports in position on the shaft.

REFERENCES:
patent: 4026491 (1977-05-01), Bostroem
patent: 4332356 (1982-06-01), Damour
patent: 5597134 (1997-01-01), Marin

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