Metal deforming – By deflecting successively-presented portions of work during... – To form helical coil or tube
Patent
1990-07-30
1992-04-21
Larson, Lowell A.
Metal deforming
By deflecting successively-presented portions of work during...
To form helical coil or tube
140 3CA, 140 924, B21F 3502, B21F 2100
Patent
active
051056429
ABSTRACT:
Multiple coil springs, particularly springs of alternating right and left hand coils, are formed from a continuous wire, interconnected by spring heads formed of straight lengths of the wire, by a coiler having a stationary forming head which with a pair forming rollers which bend the wire to one side or the other, with the formed coils extending in the same direction from the forming head, thus producing a partially formed step-shaped spring. The partially formed spring is passed through a spin tube which damps out the alternating twists resulting from the coiling procedure. Downstream from the coiler, the partially formed spring is folded by imposing opposite 180.degree. twists to consecutive pairs of the interconnecting heads to reverse the direction of alternate ones of the coils.
REFERENCES:
patent: 3188845 (1965-06-01), Gerstorfer
patent: 4726106 (1988-02-01), Mohr
L&P Property Management Company
Larson Lowell A.
McKeon Michael J.
LandOfFree
Continuous coil spring forming method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous coil spring forming method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous coil spring forming method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1577515