Apparatus for manufacturing spring unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 18, 1986
Grant Date -
N/A
app pub date -
Dec 30, 1985
filing date -
Jan 11, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an apparatus for manufacturing a spring unit, a pair of movable bodies are slidably mounted on a guide rail which is extended on a frame structure. A pair of rollers are provided on the respective movable bodies and a grip mechanism is arranged on the frame. The ends of a single wire are held between the pairs of rollers and the intermediate portion of the wire is gripped by a grip mechanism so that the single wire is stretched between the movable bodies. A swing arm is axially and swingably supported on each of the movable bodies and a forming roller is pivotably fixed to the respective swing arms. A guide is arranged between the forming rollers and the rollers and a pitch rod is arranged between the guide and the forming roller. When the swing arm is swung, the forming roller is abutted against the end of the wire and when the pair of movable bodies approach each other, the wire is extracted from the holding rollers and is abutted against the forming roller, thereby spirally forming the end of the wire with the forming roller.
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