Presser bar guide

Sewing – Elements – Presser devices

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

D05B 2902

Patent

active

043230245

ABSTRACT:
A hollow bushing (22 or 54) that guides a presser bar (21) to move in a longitudinal direction is threaded at one end (29 and 30). The outer surface of that end is round and, below the thread (59), fits closely but rotatably in a channel (32) in the head (16) of a sewing machine. The bushing is not fixedly held in place in the channel (32). Instead, a tension spring (33) screwed onto the threaded end and onto a threaded member (37) attached to the end of the presser bar (21) within the head (16) pulls the presser bar downwardly so that its foot (24) normally presses against the work (46) and simultaneously pulls the bushing (22 or 54) toward the head (16). A shoulder surface (27 or 58) at a certain location on the bushing (22 or 54) acts as a stop to limit the extent that the cylinder can be drawn into the head. The spring (33) is fully screwed onto the threaded sleeves (30 and 36) until the ends of the spring butt against surfaces (34 and 40), eliminating operator-adjusted presser foot pressure and simiplying the presser foot pressure mechanism.

REFERENCES:
patent: 3507069 (1970-04-01), Borba, Sr.
patent: 3933106 (1976-01-01), Murray

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Presser bar guide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Presser bar guide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Presser bar guide will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-588608

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.