Document Type and Number:
Japanese Patent JPS4966969
Kind Code:
A
Abstract:
This invention relates to the spur construction for a felting needle having an elongated body and a pointed end portion at its lower end. The elongated body is formed with one or more rounded corner edges and a plurality of barbs are formed along the body portion in a centered relation with the rounded lengthwise corner edges using a novel spur-forming tool. The spur is defined by a planar material engaging surface of a width at its lower end defined by spaced apart obtuse angled exterior corners and a pair of spaced apart downwardly converging lateral surfaces extending in outwardly diverging directions from the sides of the planar material engaging surface. These lateral surfaces are connected to the planar material engaging surface by means of a pair of obtuse angled exterior corners which are formed free of any sharp edges.
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Application Number:
JP6969373A
Publication Date:
June 28, 1974
Filing Date:
June 20, 1973
Export Citation:
International Classes:
D04H18/00; (IPC1-7): D04H18/00