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公开(公告)号：US4290376A
公开(公告)日：1981-09-22
申请号：US91632
申请日：1979-11-05
CPC分类号： D05B27/14
摘要： An auxiliary transport device for sewing machines utilized to attach bands to the edge of a workpiece having a pair of spaced roller members disposed in frictional engagement with a band attached to the workpiece and simultaneously rotated incrementally for advancing the workpiece away from the sewing zone. A compensating roller is mounted co-axial with one of the pair of spaced roller members and incrementally rotated therewith in a location to frictionally engage and advance that portion of the workpiece extending from the band. The compensating roller is capable of yielding in a vertical direction without effecting the position of the roller with which it is operatively associated and provides a means for effectively accommodating portions of the workpiece varying in thickness as a result of attachments such as loops, pockets and the like.
摘要翻译： 一种用于缝纫机的辅助运输装置，用于将带附接到具有一对间隔开的辊构件的工件的边缘，所述一对隔开的辊构件与附接到工件的带摩擦接合，并且同时逐渐地旋转以使工件远离缝合区。 补偿辊与所述一对间隔开的辊构件中的一个同轴地安装并随着其一个位置递增地旋转，以摩擦地接合并推进从该带延伸的该部分工件。 补偿辊能够在垂直方向上屈服，而不影响与其可操作地相关联的辊的位置，并且提供了用于有效地容纳作为厚度变化的部分的厚度的装置的装置，这是由于诸如环，袋和 喜欢。
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公开(公告)号：US4337713A
公开(公告)日：1982-07-06
申请号：US175613
申请日：1980-08-06
摘要： An invisible stitch hemming device for sewing tubular workpieces having first and second vertical walls interconnected and angularly disposed one to the other. A feeler element disposed in close proximity with the walls detects areas of the workpiece having increased thickness and is operatively connected to an actuating means which is effective when such areas are detected in displacing the first wall to permit unrestricted advance of the workpiece and simultaneously the second wall moves to a position for maintaining the workpiece in alignment with the sewing axis.
摘要翻译： 一种用于缝制管状工件的不可见的缝合折边装置，其具有彼此相互连接并成角度地布置的第一和第二垂直壁。 靠近墙壁设置的探测元件检测到具有增加的厚度的工件的区域，并且可操作地连接到致动装置，该致动装置在检测到这些区域时移位第一壁以允许工件的不受限制地前进并且同时第二 壁移动到用于将工件保持与缝纫轴线对准的位置。
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