Releasable holding device for cores

Details Releasable holding device for cores Releasable holding device for cores

1989-11-03

1990-10-23

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

269 481, 279 2R, B65H 7524, B23Q 314, B23B 522

Patent

active

049645862

ABSTRACT:
A device for releasably holding a core or the like relative to a drive shaft passing therethrough includes at least two clamping elements located within the core. Guide pieces are fixed to a ring disc which surrounds a ring connected to the drive shaft. These guide pieces allow the clamping elements to move radially relative to the drive shaft and hold the core. A friction brake is provided to brake the ring relative to the ring disc. Also, a locking pawl arrangement is provided to selectively prevent the ring disc from rotating with the drive shaft. Accordingly, back slipping is prevented which undesirably loosens the core from the clamping elements.

REFERENCES:
patent: 3667696 (1972-06-01), McCarthy
patent: 3792868 (1974-02-01), Flagg
patent: 3993317 (1976-11-01), Flagg
patent: 4193633 (1980-03-01), Potter
patent: 4374575 (1983-02-01), Lerch et al.
patent: 4516786 (1985-05-01), Lund

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