Needle finger guard and cooling device for a sewing machine
OwnerDale McClellaninventor
Life of this patent
Estimating the term…
Abstract
A combination finger guard and needle protector for use on a sewing machine having a reciprocating needle and presser foot. The needle protector includes a bracket which is attached to a support arm of the sewing machine and has an air jet carried thereon. A source of pressurized air is connected to the air jet for cooling the needle during the sewing operation. A substantially U-shaped member is carried adjacent a front end of the bracket partially encircling the reciprocating needle for providing a finger guard for the needle.
Claims2
A combined needle cooling device and protector for use on a sewing machine, said sewing machine having a reciprocating needle and a presser foot, said presser foot including a slot through which said reciprocating needle passes during operation, a vertically extending support arm, and a foot pivotally attached to said vertically extending support arm, said combined needle protector cooling device comprising:
- a bracket attached to said vertically extending support arm and extending forward along side of said needle;
- said bracket having an inner end portion, an intermediate portion, and an outer portion,
- an air jet facing said needle carried by said intermediate portion of said bracket;
- said inner end portion of said bracket having a vertically elongated slot carried thereon;
- said vertically elongated slot allowing said bracket to be adjustably and demountably attached to said vertically extending support arm;
- said intermediate portion being substantially constant vertical thickness spaced above said pressure foot and extending horizontally over substantially the length of said pivotally attached presser foot;
- said air jet being mounted substantially perpendicular to said intermediate portion of said bracket;
- means for connecting said source of pressurized air to said air jet producing a stream of air for cooling said reciprocating needle while sewing said fabric;
- and
- the outer portion comprising a substantially U-shaped member located above the tips of the inside and outside legs of the presser foot carried horizontally adjacent said intermediate portion of said bracket partially encircling said reciprocating needle providing a finger guard for said needle wherein the vertical thickness of said U-shaped portion substantially diminishes between two points located above said tips of the inside and outside leg portions of the presser foot with the clearance between the bottom edge of said bracket and the surface of the inside presser foot leg tip being substantially greater than the clearance between said bottom edge and surface for the outside presser foot leg tip.
Dependencies are inferred from the claim text.