Sealy Technology, LLC

Mark J Reisz

Brian M Manuszak

Larry K DeMoss

Darin T Thomas

David J Pleiman

Randy Sizemore

Wayne E Douglas

A spring is provided that exhibits a variable and non-linear loading response upon compression. The spring comprises a continuous wire having a lower end convolution, an upper end convolution, and a plurality of helical intermediate convolutions. The upper end convolution, the lower end convolution, and the helical intermediate convolutions each have a respective diameter, with the continuous wire further defining a pitch between the various convolutions. In the spring, one or more of the diameters of the convolutions or one or more of the pitches varies along the length of the continuous wire such that the spring exhibits a non-linear loading response upon compression. A mattress is further provided and includes a plurality of the springs arranged in a matrix.

Coil springs with non-linear loading responses and mattresses including the same

Innerspring assembly manufacturing machinery includes a coil forming machine for forming individual wire form coils from a supply of wire, a geneva to transfer individual coils from the coil forming machine to a coil conveyor, a coil orientation device to change a radial orientation of a coil about a longitudinal axis of the coil in the coil conveyor, and an innerspring assembler for receiving a coil from the conveyor in an orientation determined by the coil orientation device. The coil orientation device includes first and second pairs of rollers mounted for linear translation toward and away from a coil conveyor and into contact with a coil in contact with the coil conveyor. The first or second pair of rollers are driven to rotate while in contact with the coil in contact with the conveyor to rotate the coil about a longitudinal axis of the coil.

Innerspring manufacturing and assembly system and components for selectable coil orientation, position adjustment and coil conveyance

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Rensselaer, IN, United States of America

Mark J Reisz