Sewing – Special machines – Embroidering
Patent
1997-08-06
1999-01-12
Izaquirre, Ismael
Sewing
Special machines
Embroidering
D05C 1524
Patent
active
058574220
ABSTRACT:
A tufting machine belt driven gauging element drive assembly (5) for use with a tufting machine (7) is disclosed. The drive assembly includes a spindle assembly (24) rotatably supported on the tufting machine with respect to at least one elongate gauging element drive shaft (31, 34). The spindle assembly is rotated in timed relationship with the rotation of a tufting machine drive shaft (16) by a drive sprocket (20) mounted on the tufting machine drive shaft, a flexible timing belt (21) encircling the drive sprocket and a driven sprocket (23) formed as a part of the spindle assembly. The spindle assembly has at least one adjustable cam assembly (52a, 52b) affixed thereto and having a stub shaft (54a, 54b) formed as a part thereof which is parallel to and offset from the longitudinal axis of the spindle shaft, and which orbits the axis of the spindle shaft as the spindle shaft is rotated. An elongate drive pinion (58a, 58b) is pivotally fastened at one end to the stub shaft, the other end of the drive pinion being pivotally fastened to the first end of an elongate drive lever (66a, 66b) for transmitting the reciprocating motion of the drive pinion as a rocking motion to the drive lever for rocking the at least one gauging element drive shaft in timed relationship with the rotation of the tufting machine drive shaft. The at least one cam assembly is positioned adjacent a timing disc (47a, 47b) on which a timing reference mark (50a, 50b) is defined, and has a series of timing indicia (55a, 55b) defined thereon in registry with the timing reference mark so that the at least one cam assembly may be rotated about the spindle shaft to adjust the stroke of the drive pinion which adjusts the rotational position of the at least one gauging element drive shaft with respect to rotational position of the tufting machine drive shaft in response thereto.
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Beatty Paul E.
Neely Marshall Allen
Card-Monroe Corp.
Izaquirre Ismael
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