Methods for manufacturing coil springs

专利名称：Methods for manufacturing coil springs发明人：Michael DeFranks,Michael DiMarco,Larry

Banks

申请号：US10661363申请日：20030912公开号：US08006529B2公开日：20110830

专利附图：

摘要：The systems and methods include a feed mechanism supplying multi-strandwire to a coil-spring winder. The coil spring typically has a plurality of turns and isresilient. The multi-strand wire is typically steel, but may be of other suitable material, or

a combination of materials. The coil-spring winder receives wire from a spool of wire andforms that wire into a coil spring. Typically, but not always, the coil-spring winder cuts thecoil spring to a desired length, and thereby forms a plurality of coil springs of the typethat can be employed in mattresses, furniture, car seats, for industrial machines, or forany other application. To feed the coil-spring winder, the systems include a wire holderthat supplies the wire to the coil-spring winder along a feed direction. The wire holder issupported for rotation about an axis that may be aligned with the feed direction. Therotation of the wire holder may be substantially synchronous with the formation of theturns of the coil spring. In one embodiment, the spool of wire is mounted onto a wireholder rotatable about a holding axis for reducing torque about a cross section of thewire. Thus, as the spool of wire revolves around the central spool axis, the spool alsorevolves around a second axis, which typically is orthogonal to the spool axis. In this way,it is understood that the coil-spring winder can pull wire off the spool without it causingtwisting that may unravel or snap the multi-strand wire.

申请人：Michael DeFranks,Michael DiMarco,Larry Banks

地址：Atlanta GA US,Atlanta GA US,Atlanta GA US

国籍：US,US,US

代理机构：Cantor Colburn LLP

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