Spuhl Ag

Spuhl Ag St. Gallen

Ugo De Santis

Niels S Mossbeck

Thomas J Wells

Roland Graf

A string ( ) of pocketed coil springs ( ) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric ( ). The springs are maintaned in a compressed configuration while a longitudinal seam ( ) joins the free edges of the thermally welded fabric ( ) together. Subsequently, the compressed springs ( ) are allowed to relax into an expanded configuration after which a transverse seam ( ) is formed in the fabric ( ) between the adjacent springs ( ) thereby encapsulating each spring ( ) within a fabric pocket ( ). The string ( ) of pocketed coil springs ( ) is advantageously formed without the need for reorienting the springs ( ) after being inserted between the plies ( ) of the fabric ( ) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring ( ).

Method and system for forming strings of pocketed coil springs with traction mechanism

A string ( ) of pocketed coil springs ( ) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric ( ). The springs are maintained in a compressed configuration while a longitudinal seam ( ) joins the free edges of the thermally welded fabric ( ) together. Subsequently, the compressed springs ( ) are allowed to relax into an expanded configuration after which a transverse seam ( ) is formed in the fabric ( ) between the adjacent springs ( ) thereby encapsulating each spring ( ) within a fabric pocket ( ). The string ( ) of pocketed coil springs ( ) is advantageously formed without the need for reorienting the springs ( ) after being inserted between the plies ( ) of the fabric ( ) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring ( ).

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St. Gallen, Switzerland

Ugo De Santis