| 摘要 |
A tufting machine of the cut pile type in which a pair or more of eccentrically operated needle bars are spaced apart, two or more series of eccentrically operated looping hooks and knife cutters co-operate respectively with the sets of needles, the spacing of the needle bars and amplitude of sideways traverse of the fabric is a number of times greater than the pitch of the needles for forming symmetrical cross-over patterns of stitching, and the patterns are changeable by for example removing equally spaced needles and/or adjusting the feed of the fabric and/or adjusting the amplitude of sideways traverse of the fabric, by the use for example of differently shaped cams and differently sized pulleys, with common or separate operating mechanisms for the needles and associated parts.
|
