Mandrel assembly

Details Mandrel assembly Mandrel assembly

1974-07-31

1976-01-27

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 7518

Patent

active

039348369

ABSTRACT:
A mandrel assembly in which the mandrel segments are expanded and contracted by means of a draw rod extending through the mandrel and driven by the same motor that rotates the mandrel during winding or unwinding operations. The draw rod is fixed for rotation with the mandrel but is movable longitudinally thereof and is provided with power threads on one end which are in engagement with complementary power threads on a nut member carried by the motor shaft. A drive gear is keyed to the nut member so that it is rotatable with the nut member but capable of movement longitudinally thereof into and out of engagement with a driven gear secured to the mandrel. A nonrotatable gear segment is mounted for shifting movement with the drive gear and moves into engagement with the driven gear as the drive gear is disengaged from the driven gear to lock the mandrel against rotation. When the mandrel, and hence the draw rod, are thus locked against rotation, continued rotational movement of the nut member results in longitudinal movement of the draw rod and radial movement of the mandrel segments.

REFERENCES:
patent: 2271139 (1942-01-01), Holdgate
patent: 2598398 (1952-05-01), Littell
patent: 3107875 (1963-10-01), Gochenour
patent: 3244380 (1966-04-01), Hoyne

Affiliated with

Also associated with

Rating

Mandrel assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mandrel assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mandrel assembly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1808433