Support Structure for a Seat

Abstract

A support structure for a seat is provided comprising two lateral side wires ( 1, 2 ) and a plurality of transverse wires ( 4 - 12 ) extending between the two lateral side wires ( 1, 2 ) is provided. The plurality of transverse wires ( 4 - 12 ) comprises a first transverse wire having a first convolution ( 4 A- 12 A, 4 B- 12 B) and a second transverse wire having a second convolution ( 4 A- 12 A, 4 B- 12 B). According to the invention, a shape of said first convolution ( 4 A- 12 A, 4 B- 12 B) is different from a shape of said second convolution ( 4 A- 12 A, 4 B- 12 B) for example by varying a dimension like the height of said shapes. With such an arrangement, the transversal resiliency of the support structure may be varied and thus adapted to load bearing requirements.

1 - 13 . (canceled) 
   
   
       14 . A support structure for a seat comprising
 two lateral side wires and   a plurality of transverse wires extending between the two lateral side wires, said   plurality of transverse wires comprising a first transverse wire having a first convolution and a second transverse wire having a second convolution,   wherein a shape of said first convolution is different from a shape of said second convolution, and   wherein the shape of said first convolution and the shape of said second convolution are designed such that a transversal resiliency of said first transverse wire is greater than a transversal resiliency of said second transverse wire.   
   
   
       15 . The support structure according to  claim 14 ,
 wherein at least one convolution of the group consisting of said first convolution and said second convolution is formed in a plane defined by said two lateral side wires and said plurality of transverse wires.   
   
   
       16 . The support structure according to  claim 14 ,
 wherein a dimension of said first convolution is different from a dimension of said second convolution.   
   
   
       17 . The support structure according to  claim 16 ,
 wherein said dimension of said first convolution and said dimension of said second convolution is a dimension parallel to a direction of said two lateral side wires.   
   
   
       18 . The support structure according to  claim 14 ,
 wherein the shape of said first convolution is one of the group consisting of a trapezoidal shape, a rectangular shape, a triangular shape or a sinusoidal shape.   
   
   
       19 . The support structure according to  claim 14 ,
 wherein the shape of said second convolution is one of the group consisting of a trapezoidal shape, a rectangular shape, a triangular shape or a sinusoidal shape.   
   
   
       20 . The support structure according to  claim 14 ,
 wherein each transverse wire of said plurality of transverse wires has a respective convolution,   wherein shapes of said respective convolutions are designed such that the transversal resiliency of the support structure varies in a direction parallel to said two lateral side wires.   
   
   
       21 . The support structure according to  claim 20 ,
 wherein the transversal resiliency of said support structure varies monotonously in said direction parallel to the direction of the two lateral side wires.   
   
   
       22 . The support structure according to  claim 20 ,
 wherein said respective convolutions have trapezoidal shapes, and wherein a height of said trapezoidal shapes is varied between the transverse wires to vary the transversal resiliency of said transverse wires.   
   
   
       23 . The support structure according to  claim 22 ,
 wherein said height of said trapezoidal shapes is varied monotonously in a direction parallel to the direction of the two lateral side wires.   
   
   
       24 . The support structure according to  claim 21 ,
 wherein said height of said trapezoidal shapes is varied linearly in said direction parallel to the direction of the two lateral side wires.   
   
   
       25 . A seat, comprising
 a seat frame and   a support structure which is suspended in said seat frame,   said support structure comprising:   two lateral side wires and   a plurality of transverse wires extending between the two lateral side wires, said plurality of transverse wires comprising a first transverse wire having a first convolution and a second transverse wire having a second convolution,   wherein a shape of said first convolution is different from a shape of said second convolution, and   wherein the shape of said first convolution and the shape of said second convolution are designed such that a transversal resiliency of said first transverse wire is greater than a transversal resiliency of said second transverse wire.