发明名称 Industrial sewing machine - has dual presser foot to accommodate double thickness material when stitching
摘要 A process utilizes a sewing machine to stitch material of different thickness. The presser foot alternates with an advance foot, to determine the height of the material, and set the speed accordingly. As the greater height is encountered the speed is reduced, and when the height is reduced normal speed is regained. The machine is of a type which has preset controls, and these come into operation automatically when the duel presser foot arrangement (33,39) senses a difference in height of material on the table (7), i.e. (h1,h2). ADVANTAGe - The operator has only to set the controls on the machine and press the foot pedal to run. The speed will then be reduced automatically when thicker or double material is encountered.
申请公布号 DE4230747(A1) 申请公布日期 1994.03.17
申请号 DE19924230747 申请日期 1992.09.14
申请人 DUERKOPP ADLER AG, 33719 BIELEFELD, DE 发明人 SCHOLL, HANS, 4811 OERLINGHAUSEN, DE
分类号 D05B27/04;D05B29/02;D05B47/04;(IPC1-7):D05B29/02 主分类号 D05B27/04
代理机构 代理人
主权项
地址