Sliding needle bar drive for tufting machines
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United States of America Patent
Stats
-
Jun 27, 1995
Grant Date -
N/A
app pub date -
Jan 25, 1994
filing date -
Feb 10, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A drive mechanism for connecting the output drive of a tufting machine pattern control to the needle bar of the tufting machine includes a linkage having a pair of links each connected at one end to a plate fastened to the output drive rod of the pattern control and having second ends which are connected to a lever at spaced apart locations. One end of the lever is connected to the needle bar of the tufting machine. One of the links is substantially longer than the other link and the locations of the connection to the lever is such that the attachment of the lever to the needle bar produces substantially vertical straight line motion at that point as the needle bar reciprocates. Thus, the needle bar may be shifted laterally by the mechanism as determined by the pattern control, and yet reciprocates in a straight line path.
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