| 摘要 |
An apparatus (20, 110) for making mattress and upholstery spring coils. The apparatus (20, 110) has a wire feeding device (69) and a wire guide (52) adapted to support first and second wires (44,46) of different diameters. Th e wire guide (52) is movable to first and second positions to align the first and second wires (44,46), respectively, with a spring coiling machine (110)positioned adjacent the wire feeding device (69). When the wire guide (52) is in the first position, the spring coiling machine (110) receives the first wire ( 44) of one diameter from the wire feeding device ( 69); and the spring coiling machine ( 110) bends the first wire ( 44) into a spring coil of a desired diameter and pitch and having a first stiffness. When the wire gui de (52) is in the second position, the spring coiling machine (110) receives th e second wire (46) of another diameter from the wire feeding device (69); and the spring coiling machine (110) bends the second wire ( 46) into a spring coil of the desired diameter and pitch but having a second stiffness.</SDOAB >
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