Needle with triangular end and thermal load reducing eye
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United States of America Patent
Stats
-
Jun 1, 1993
Grant Date -
N/A
app pub date -
May 27, 1992
filing date -
May 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A sewing machine needle has a piston for clamping the needle into a sewing machine, a needle shaft comprised of a shaft portion and an end piece with a tip, whereby the needle shaft has a needle eye between the shaft portion and the end piece for receiving a sewing thread. A conical portion connected to the piston forms a transition into the needle shaft. The end piece, between the tip and the needle eye, has a triangular radial cross-section with rounded corners, whereby the size of the triangular cross-section increases from the tip toward the needle eye, and whereby the triangular cross-section has its greatest size in the vicinity of the needle eye. The needle shaft, in the area of the needle eye, has an essentially circular cross-section, and this circular cross-section has a size that is smaller than the greatest size of the triangular cross-section.
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Cited Art Landscape
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