公开(公告)号：US4550671A

公开(公告)日：1985-11-05

申请号：US648696

申请日：1984-09-07

申请人： Albert Dusch

发明人： Albert Dusch

IPC分类号： D05B29/00 ,  D05B29/02 ,  D05B27/04

CPC分类号： D05B29/02

摘要： A material presser device on a sewing machine, includes a presser foot which is attached to a vertically movable presser bar and to which lift movements are imparted by a swing mechanism driven by the main shaft acting through a knee-joint transmission which, in its extended position, extends substantially in the movement direction of the presser bar. For positive connection of the presser foot with the swing mechanism, the presser bar is articulated via an intermediate pitman to one end of the connecting rod of a four-joint transmission. The other end of the four-joint transmission is connected by a connecting rod with an abutment which applies under the action of a spring, against a counter abutment secured to the housing. The connecting rod is connected to the knee joint transmission, the knee joint of which is connected to the sewing machine.

摘要翻译： 一种缝纫机上的材料按压装置，包括压脚，该压脚连接到可垂直移动的压杆上，并且由主轴驱动的摆动机构通过膝关节传动装置施加提升运动，压脚 位置基本上在压杆的移动方向上延伸。 为了使压脚与摆动机构的正向连接，压杆通过中间凹槽连接到四联式变速器的连杆的一端。 四关节传动装置的另一端通过连接杆连接，该连杆具有在弹簧的作用下施加的邻接件，抵靠固定到壳体上的对接基台。 连杆连接到膝关节传动装置，其膝关节连接到缝纫机。