Sewing – Elements – Needles
Patent
1989-02-10
1989-11-28
Falik, Andrew M.
Sewing
Elements
Needles
24135N, D05B 5502
Patent
active
048830070
ABSTRACT:
A needle clamp includes a clamp screw, a square nut member having a threaded hole engageable with the clamp screw, and a needle clamp body having a first hole for receiving plural needles arranged in side-by-side relationship in a first direction within a predetermined plane, a second hole formed so that the clamp screw may move therein in the first direction, and a square cavity formed so that the nut member may move therein in the first direction. The cavity includes a pair of opposite internal walls which prevent the nut member from rotating about an axis of the clamp screw by engaging with corners of the nut member, and a third internal wall which prevents the nut member from moving away from the needles arranged in the first hole by engaging with a surface of the nut member opposite to a surface facing the arranged needles. Consequently, when the clamp screw is tightened within the threaded hole of the nut member, a conical end portion of the clamp screw is automatically positioned at the middle position between two adjacent needles, so that the needles are simultaneously firmly attached to the needle clamp body. When the clamp screw is loosened, the nut member is prevented from falling off or from blocking the insertion of needles by means of its engagement with the clamp screw.
REFERENCES:
patent: 418049 (1889-12-01), Muther
patent: 423113 (1890-03-01), Baker
patent: 1401466 (1921-12-01), De Voe
patent: 2792798 (1957-05-01), Zink
patent: 3020866 (1962-02-01), Fujita
patent: 3348508 (1967-10-01), Eguchi et al.
patent: 4111139 (1978-09-01), Klundt
patent: 4508042 (1985-04-01), Bianchi
Brother Kogyo Kabushiki Kaisha
Falik Andrew M.
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