Needle drive for a multi-needle stitching machine

Details Needle drive for a multi-needle stitching machine Needle drive for a multi-needle stitching machine

1995-12-01

1998-01-13

Lewis, Paul C.

Sewing

Elements

Driving mechanisms

112163, D05B 6900

Patent

active

057067465

ABSTRACT:
A needle drive for a multi-needle stitching machine is provided, having a needle bar supporting needles, which is suspended on pairs of elbow joint levers. The elbow joint levers are engaged by a common push rod, which is movable back and forth by a drive. The needle bar is supported on vertical guides and is moved up and down by the pushing movements of the push rod. The needles of the stitching machine reach the lower point of reversal when the elbow joint levers are completely stretched, that is, when the elbow joint levers are disposed parallel with each other. In this manner, the lower point of reversal is clearly determined, and remains the same, irrespective of whether the lift of the push rod is increased or decreased in order to adjust the lifting of the needles from the sewing material.

REFERENCES:
patent: 247312 (1881-09-01), Coles
patent: 3450081 (1969-06-01), Rabinow
patent: 3653346 (1972-04-01), Parsons
patent: 3665873 (1972-05-01), Wittler
patent: 4190006 (1980-02-01), Mellor
patent: 4616585 (1986-10-01), Marcandalli

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