Thread monitor for the bottom thread in the bobbin of a sewing m

Details Thread monitor for the bottom thread in the bobbin of a sewing m Thread monitor for the bottom thread in the bobbin of a sewing m

1986-06-03

1988-03-22

Reynolds, Wm. Carter

Sewing

Elements

Thread sensing

112231, 112273, D05B 5100, D05B 6936

Patent

active

047320982

ABSTRACT:
A sewing machine with a lockstitch rotary hook containing a bobbin, has a thread monitor with which light signals of a radiation source are conducted to a light receiver via inlet and outlet openings in parts of the rotary hook and in at least one of the flanges of the bobbin. For determination of a predeterminable thread and length, the hub which connects the flanges of the bobbin comprises a truncated cone-shaped region, in the surface of which the outlet opening extending substantially parallel to the axis of the hub ends.

REFERENCES:
patent: 4188902 (1980-02-01), Kahan
patent: 4237807 (1980-12-01), Meier et al.
patent: 4413581 (1983-11-01), Logan
patent: 4432297 (1984-02-01), Kemmel
patent: 4681050 (1987-07-01), Kosmas

Affiliated with

Also associated with

Rating

Thread monitor for the bottom thread in the bobbin of a sewing m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thread monitor for the bottom thread in the bobbin of a sewing m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thread monitor for the bottom thread in the bobbin of a sewing m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-436211