Patent ID: 6149143
Filing Date: 2000-11-21
Classification: A47C

Abstract:
An innerspring structure for a mattress comprising:a row of outer coils, the row being formed from a continuous piece of wire with the adjacent coils of the row interconnected with interconnection segments;a row of inner coils, the row being formed from a continuous piece of wire with the adjacent coils of the row interconnected with interconnection segments;said interconnection segments of said rows of coils forming adjacent coil heads for pairs of adjacent coils and each coil head including a first linear portion disposed generally parallel to the row of coils;the row of inner coils being positioned together and generally coaxially with the row of outer coils for forming a row of reinforced coil units;a helical lacing structure extending along the row of reinforced coil units and winding around portions of the inner and outer coils of the row to couple the coils together into the reinforced coil units, the first linear portions of the coaxial coils in the row forming the reinforced coil units configured for being captured with at least approximately three loops of the helical lacing structure for further forming the row of reinforced coil units.