Textiles: knitting – United needle machines – Straight
Reexamination Certificate
2001-03-26
2001-11-27
Worrell, Danny (Department: 3765)
Textiles: knitting
United needle machines
Straight
Reexamination Certificate
active
06321577
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to knitting machines and more particularly to an improved transmission mechanism for weft bars of knitting machine.
BACKGROUND OF THE INVENTION
Conventionally, weft bars are activated by cams through connecting rods thereof. Such operation is disadvantageous for component wearing, malfunctioning and noise. Further, the replacement of component is tedious and time consuming. Furthermore, the requirement for the correction of newly installed component is very high, thus causing inconvenience to operator. Therefore, improvement exists.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a transmission mechanism for a plurality of weft bars of a knitting machine comprising a plurality of pairs of connecting rods each pair having one end coupled to the weft bar; a plurality of connection members having one ends coupled to the other ends of the connecting rods; a plurality of universal rods having one ends pivotably coupled to the other ends of the connection members; a plurality of upper engagement blocks having upper sides pivotably coupled to the other ends of the universal rods; a plurality of lower engagement blocks having top teeth on either end; a plurality of belts each having a plurality of parallel teeth on the inner surface, each belt being movable between the upper engagement block and the lower engagement block with the teeth thereof meshed with the top teeth of the lower engagement block; two transverse rods inserted through the lower engagement block for connecting the lower engagement block and the knitting machine together; a plurality of sensors each secured on the upper engagement block for sensing and controlling the motions of the upper engagement block and the lower engagement block; a plurality of pairs of idler gears each pair provided on two sides of the belt; a plurality of pairs of shafts each for supporting the idler gear; a plurality of motors each having a gear wheel meshed with the teeth on the bottom of the belt; and two plates each having a plurality of seats for supporting the motors wherein one of the seats has a length different from the other.
The above and other objects, features and advantages of the present invention will become apparent from the following detailed description taken with the accompanying drawings.
REFERENCES:
patent: 4414826 (1983-11-01), Mista et al.
patent: 4611475 (1986-09-01), Bergmann
patent: 5307648 (1994-05-01), Forkert et al.
patent: 5311751 (1994-05-01), Winter et al.
patent: 5327750 (1994-07-01), Speich
patent: 3213663 (1983-10-01), None
Rabin & Berdo P.C.
Worrell Danny
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