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公开(公告)号：US3807330A
公开(公告)日：1974-04-30
申请号：US29183872
申请日：1972-09-22
申请人： AISIN SEIKI
发明人： ONO T , YAMAMOTO K
摘要： A household type lock stitch sewing machine wherein the ordinary under thread bobbin case may be replaced by a looper or collar member which may be detachably mounted on the stud of the shuttle, whereby the single upper thread engaging the needle eye may form a series of chain stitches by using the shuttle and the looper as hook means to draw or release the thread loop in timed relation with the movement of the needle and the feed dog.
摘要翻译： 一种家用类型的缝纫缝纫机，其中普通的底线梭壳可以由可以可拆卸地安装在梭子的螺柱上的弯针或套环构件代替，由此与针眼接合的单个面线可以形成一系列链条 通过使用梭子和打针器作为钩形装置，以与针头和进给针的运动定时关系来绘制或释放线圈，进行缝合。
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公开(公告)号：US3721205A
公开(公告)日：1973-03-20
申请号：US3721205D
申请日：1971-02-03
申请人： AISIN SEIKI
发明人： ONO T , HIRAYAMA T , YAMAMOTO K
IPC分类号： D05B47/00
CPC分类号： D05B47/00
摘要： A tension device adapted for the sewing machine including an assembly consisting of two nip forming members at least one of which rotates freely on its stud. An adjusting means is provided to tighten or loosen spring means by means of which the two nip forming members are always passed against one another. The tension is applied to the thread by a friction force produced by the rotation of the roll or rolls on their studs, whereby uneveness of the thread does not cause breaking of the thread and the skipping of stitches when the thread passes the nip.
摘要翻译： 一种适用于缝纫机的张紧装置，包括由两个辊隙形成构件组成的组件，其中至少一个在其螺柱上自由旋转。 提供调节装置以紧固或松开弹簧装置，通过该装置两个辊隙形成构件总是彼此通过。 张力由于辊或辊在其螺柱上的旋转产生的摩擦力施加到螺纹上，由此当螺纹通过辊隙时，线的不均匀性不会导致线的断裂和线迹的跳动。
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