Leaf spring straightening apparatus

Details Leaf spring straightening apparatus Leaf spring straightening apparatus

1998-01-14

2000-01-11

Jones, David

Metal deforming

By relatively movable offset tool-faces

Embodying three or more coacting relatively movable tools

72298, 72387, B21D 702, B21D 1102

Patent

active

060123206

ABSTRACT:
Disclosed is a preferred embodiment of straightening apparatus (100) featuring a pair of adjacent rotary block members (8) and (8') having channels (30) and (30') respectively disposed therein for receiving spaced-apart legs (6) and (6') of a heated leaf springs folded into a substantially flat "U" shaped configuration as block members (8) and (8') are caused to rotate in unison in opposite directions, inner walls (12) and (12') of channels (30) and (30') respectively engage and urge legs (6) and (6') away from each other whilst outer walls (10) and (10') of channels (30) and (30') respectively are operative to engage and provide support for substantially the entire length of a convex side (26) of a curved section (24) of the folded leg spring effective to prevent warpage thereof during the straightening process.

REFERENCES:
patent: 1066247 (1913-07-01), Brown, Jr.
patent: 3824834 (1974-07-01), Durham
patent: 4716757 (1988-01-01), McGregor
patent: 4798073 (1989-01-01), Dischler
patent: 5001918 (1991-03-01), Stepanenko et al.
patent: 5588322 (1996-12-01), Passone
patent: 5836193 (1998-11-01), Hunter et al.

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