Horizontal rotary hook for sewing machine

D - Textiles – Paper – 05 – B

Patent

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Details

D05B 57/00 (2006.01) D05B 57/08 (2006.01) D05B 57/14 (2006.01)

Patent

CA 2585434

A horizontal rotary hook for a sewing machine includes an inner bobbin case holder accommodating a bobbin, an outer rotating hook accommodating the bobbin case holder and rotated in a predetermined direction with the bobbin case holder being accommodated in the rotating hook, the rotating hook having an outer peripheral wall formed with a bobbin-thread passing opening through which the bobbin thread passes, an enlarged opening defined in the outer peripheral wall of the rotating hook so as to be continuous to the bobbin- thread passing opening, a beak member separate from the rotating hook and mounted on the rotating hook so as to close the enlarged opening, and a fitting holder mounted on the rotating hook so that a lower part of the beak member is fitted into the fitting holder, thereby holding the beak member.

Crochet rotatif horizontal pour machine à coudre, qui possède un élément de retenue de boîte à canette interne destiné à recevoir une canette, un crochet rotatif externe destiné à recevoir le dispositif de retenue de boîte à canette et tournant dans un sens prédéterminé lorsque le dispositif de retenue de boîte à canette est logé dans le crochet rotatif. Ledit crochet rotatif possède une paroi périphérique externe dans laquelle est ménagée une ouverture pour le passage du fil de canette, une grande ouverture définie dans la paroi périphérique externe du crochet rotatif de manière à constituer un prolongement de l'ouverture de passage du fil de canette, un élément bec séparé du crochet rotatif et monté sur ledit crochet rotatif de manière à fermer la grande ouverture, et un élément de retenue par ajustement monté sur le crochet rotatif de manière qu'une partie inférieure de l'élément bec soit introduite dans l'élément de retenue, l'élément bec étant ainsi retenu.

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