Half-turn hook with loop positioning surfaces
AssigneeJuki Corporation
InventorTakashi Yamashita
Life of this patent
Estimating the term…
Abstract
A half-turn hook for positioning a needle thread loop between a needle and a bobbin at the time of stitching, the half-turn hook comprises a shuttle race body, a rotatable shuttle body, a bobbin and a shuttle race ring. The shuttle race body has a sliding surface on which a needle thread is slid in the beginning of stitching. The shuttle race ring has a cutout formed in its upper portion. In the half-hook, the surface where the shuttle body abuts against the shuttle race body and the end into which the rotating shuttle digs, in the cutout of the shuttle body race ring, is located closer to the rotating shuttle body than the sliding surface of the shuttle race body.
Claims2
A half-turn hook for positioning a needle thread loop between a needle and a bobbin at the time of stitching, the half-turn hook comprising:
- a shuttle race body having a lower portion having a surface, a cutout and a sliding surface formed in the cutout, and on which a needle thread is slid in the beginning of stitching, said sliding surface including an end point located at the surface of the lower portion;
- a rotatable shuttle body;
- a bobbin;
- and
- a shuttle race ring having an upper portion having a surface, and a cutout formed in the upper portion, the cutout including an end point located at the surface of the shuttle race ring,
- wherein the surface of the lower portion is adjacent the surface of the upper portion, and wherein the end point of the cutout of the shuttle race ring is located downstream in a loop taking direction of the rotatable shuttle body in comparison with the end point of the sliding surface of the shuttle race body.
Dependencies are inferred from the claim text.