High speed dynamically balanced tufting machine

Details High speed dynamically balanced tufting machine High speed dynamically balanced tufting machine

1992-12-16

1994-02-22

Nerbun, Peter

Sewing

Special machines

Embroidering

112221, 112 804, D05B 1504, D05B 1520, D05B 6902

Patent

active

052878198

ABSTRACT:
A tufting machine having individual crank assemblies for reciprocating the push rods which carry the needle bar. Successive crank shafts aligned with each other and parallel to two main drive shafts which are rotated in opposite directions. Gears on the main drive shafts respectively transfer power from the two drive shafts so as to rotate each successive crank shaft in a direction opposite from the direction of rotation of the preceding crank shaft. The connecting rods connected to the crank assemblies thus are thrown outwardly in opposite directions as the crank shafts are rotated, so as to balance the machine. Additional counter-balance weights are provided on the main drive shafts.

REFERENCES:
patent: 4665845 (1987-05-01), Card et al.
patent: 4669403 (1987-05-01), Bagnail
patent: 4936268 (1990-06-01), Randle

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