Vertically fully rotating hook with needle guiding surface

Details Vertically fully rotating hook with needle guiding surface Vertically fully rotating hook with needle guiding surface

1998-07-20

1999-11-02

Izaguirre, Ismael

Sewing

Stitch forming

Revolving-hook type

112227, D05B 5506, D05B 5726

Patent

active

059749954

ABSTRACT:
A wall of an inner loop taker includes a guiding surface, a first vertical surface which extends continuously to an inward end of the guiding surface in a radial direction of the inner loop taker and is parallel to an axial line of a needle, and a second vertical surface which is formed on the inward side of the first vertical surface in the radial direction of the inner loop taker but closer to the axial line of the needle than the first vertical surface and which is parallel to the axial line of the needle. A first angle .theta. between a straight line which links the inward end and an outward end of the second vertical surface in the radial direction of the inner loop taker and the axial line is smaller than a second angle between a needle tip guiding surface of the needle and the axial line, while a first length of the first vertical surface is equal to or smaller than a distance along the axial line between a bottom end portion of an inner peripheral surface of an eye of the needle and a needle tip of the needle.

REFERENCES:
patent: 2990794 (1961-07-01), Ketterer
patent: 3120204 (1964-02-01), Ketterer
patent: 3533368 (1970-10-01), Finster
patent: 4094261 (1978-06-01), Ketterer et al.
patent: 4757774 (1988-07-01), Junemann
patent: 4858543 (1989-08-01), Badillo
patent: 4884520 (1989-12-01), Shimizu
patent: 5109783 (1992-05-01), Shimizu
patent: 5168826 (1992-12-01), Hirose
patent: 5189972 (1993-03-01), Mitsui et al.

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