Oscillating shuttle of sewing machine

Details Oscillating shuttle of sewing machine Oscillating shuttle of sewing machine

1998-05-21

1999-03-16

Nerbun, Peter

Sewing

Stitch forming

Shuttle type

112232, D05B 5712

Patent

active

058816585

ABSTRACT:
An oscillating shuttle, including a shuttle race having a substantially annular guide groove including two end portions opposed to each other in a circumferential direction thereof, a shuttle body which includes a part-annular guided portion and a hook portion and which is oscillatory while the guided portion is guided by the guide groove, a driver which rotates the shuttle body about an axis line, wherein when the hook portion hooks a thread loop, the shuttle body is rotated by the driver in one of opposite directions such that the tail portion passes through one of the two end portions of the guide groove and enters an upper opening of the shuttle race and, when the shuttle body is rotated back in the other direction, a tail portion of the guided portion enters the one end portion of the guide groove, and at least one of the one end portion of the guide groove which has, in a direction parallel to the axis line, a width greater than a width of a remaining portion of the guide groove, and the tail portion of the guided portion which has, in a direction parallel to the axis line, a width smaller than a width of a remaining portion of the guided portion.

REFERENCES:
patent: 3006298 (1961-10-01), Johnson
patent: 4724782 (1988-02-01), Reber

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