Sewing machine with a trimming device

Details Sewing machine with a trimming device Sewing machine with a trimming device

1982-11-03

1985-03-05

Schroeder, Werner H.

Sewing

Work manipulating

Trimmers

D05B 3706

Patent

active

045024006

ABSTRACT:
A sewing machine includes a main shaft driving a sewing needle to reciprocate it through the material to be sewn which is fed over a needle slide of a stitch plate. The main shaft also drives a trimming knife drive which drives a reciprocating knife which cooperates with a counter blade adjacent the stitch plate for trimming the material. The trimming knife drive includes an eccentric driven by the main shaft and operating a knife operating linkage connected to reciprocate the knife. An eccentric rod is driven by the eccentric and it drives a swing lever through a guide rod which is pivoted thereto. The swing lever in turn drives the knife through a linkage connected between it and the knife and selectively moves it upwardly and downwardly for stopping its motion in either an upward or downward position. A device is connected to the eccentric rod so as to pivot the swing lever into a position in which it actuates the linkage to move the knife to its cutting position independently of the position of the eccentric.

REFERENCES:
patent: 3980031 (1976-09-01), Landwehr

Affiliated with

Also associated with

Rating

Sewing machine with a trimming device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sewing machine with a trimming device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sewing machine with a trimming device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1728788