Seat spring assembly (torque-coil)

摘要

A coil seat spring assembly wherein spring coils are mounted on a plurality of sinuous spring bands extending between the front and back rails of a furniture seat frame. The axes of the coils are substantially vertical. The coils on each band are clamped to each other and to adjacent coils and adjacent bands at their uppermost coil turns and at their lowermost coil turns. The coils are approximately two-thirds the axial length of conventional coil springs.