Method and equipment for making a spring
AssigneeRessorts Huon Dubois
InventorSerge Huon
Life of this patent
Estimating the term…
Abstract
A method for making a variable pitch spring (9), in which a spring wire (1) is bent using bending lugs (5, 6) so as to impart a spiral configuration thereto, a gap is formed between the turns by placing, between the turns being formed, the beveled side of a rotary disc (2) having a rotation synchronized with the spring wire supply, the disc (2) having a beveled profile that varies along the periphery of the disc, and the spring wire is cut (3) at the end of the formation of each spring.
Claims20
Method for making a variable pitch spring in which a spring wire is bent using bending fingers so as to impart a spiral configuration thereto, a gap is formed between the turns by placing between the turns being formed the beveled edge of a pitch tool including a rotary disk having a rotation synchronized with feeding the spring wire, the disk having a beveled profile that varies along the periphery of the disk and the spring wire being cut at the end of the formation of each spring.
Installation for manufacturing a spring, including spring wire feed members, bending fingers for deforming this wire into a spiral having a predetermined diameter, a separator adapted to be disposed between turns being formed to generate a separation between them, and a cutting tool, characterized in that the separator is a rotary disk the rotation whereof is synchronized with the spring wire feed speed and the edge of which has a beveled profile that varies along the periphery of the disk, which is disposed so as to cause this peripheral edge to travel between turns in the process of being formed by this edge.
Dependencies are inferred from the claim text.