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US 2005/0016221 A1Published application
Tip-headed needle
AssigneeGroz-Beckert KG
InventorsJohannes Bruske, Gunther Buchle, Stephan Pfister
Life of this patent
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Abstract
A stitch needle (10) is provided with a tip (29) which is shaped as a center punch and has no recognizable rounding at its terminus (31). The tip (29) is preferably arranged at mid height of the hook-shaped aperture (36) which is structured for capturing the yarn (13). The particular shape of the tip (29) and its positioning minimize the wear of the stitch needle (10) and also minimize damages to the yarn (13).
Claims12
A stitch needle (10) particularly in the stitch-bonding technology and particularly for use for technical textiles, comprising
- an elongated needle body (23) which has an aperture (36) for receiving a yarn (13) and which further has, at one end, a holding device (24) and a pointed terminus (31) at the opposite end and which also has two flat sides (27, 28) which converge at an acute angle toward the terminus (31);
- the acute angle has, where it adjoins the terminus (31), a first magnitude which changes into a smaller, second magnitude at a transitional location (33) which is remote from the terminus (31).
Dependencies are inferred from the claim text.