Winding – tensioning – or guiding – Wound storage package
Patent
1987-07-16
1989-01-31
Gilreath, Stanley N.
Winding, tensioning, or guiding
Wound storage package
B65H 5500
Patent
active
048011061
ABSTRACT:
A coil of tapered wire for forming coil springs, formed by winding substantially in concentric loops a quench-hardened and tempered tapered wire having a successive arrangement of tapered wire segments each consisting of a thick section, two thin sections and two tapered sections connecting the thin sections to the opposite ends of the thick section, respectively. The tapered wire is subjected to a preforming action immediately before being wound in loops on a winding drum, to form plastic bends in the thick sections and plastic bends of a radius of curvature greater than that of the plastic bends in the thick sections so that the tapered wire is wound in substantially uniform, concentric circular loops on a winding drum. When the tapered wire is unwound from the coil and is subjected to a straightening process of a fixed straightening arrangement of a series of straightener rollers before being coiled in tapered wire coil springs on a coil spring forming mill, the thick sections undergo a straightening action greater than that acts on the thin sections, so that which the tapered wire unwound from the coil of tapered wire is straightened in a substantially straight tapered wire and thereby the tapered wire is coiled in tapered wire coil springs having a correct size and a uniform shape.
REFERENCES:
patent: 1862992 (1932-06-01), Vargha
patent: 3231217 (1966-01-01), Justice, Jr.
patent: 3470861 (1969-10-01), Grandy
patent: 3700185 (1972-10-01), Hubbard et al.
patent: 4261191 (1981-04-01), Suzuki et al.
Katsube Kozo
Kawaguchi Yasunobu
Kawakami Heijiro
Murahashi Mamoru
Takada Susumu
Gilreath Stanley N.
Kabushiki Kaisha Kobe Seiko Sho
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