Tufting machine needle bar shifting apparatus

Details Tufting machine needle bar shifting apparatus Tufting machine needle bar shifting apparatus

1983-03-30

1984-08-14

Feldbaum, Ronald

Sewing

Special machines

Buttonhole

D05C 1526

Patent

active

044650019

ABSTRACT:
A cam actuated shifting apparatus for drivingly shifting the needle bar of a tufting machine has a pair of spaced rods journally mounted in a frame. A plate cam having pattern information on the periphery thereof is mounted on a drive shaft in a plane substantially parallel to a plane passing through the axes of the rods. A pair of followers are adjustably mounted at opposed dispositions across the cam for driving the rods in accordance with the information on the periphery of the cam. The cam is fastened to the shaft by means of an adapter secured to the cam and keyed to the shaft. A radially split collet abuts the adapter and has a split clamping collar disposed thereabout. A single bolt compresses the collar about the collet to secure the cam axially on the shaft, and upon release of the bolt readily permits the cam to be moved axially.

REFERENCES:
patent: 3964407 (1976-06-01), Ingram et al.
patent: 4392440 (1983-07-01), Ingram

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