Abstract: A seat suspension arrangement intended to provide greater protection for occupants of a vehicle seat in the event of a rearward collision in a motor vehicle, comprises a platform element intended to be supported in the frame of the back rest of a vehicle seat in order to provide support for the seat upholstery, the platform element comprising side rails (1) between which are coupled sinuous wire springs (3) and a plurality of link means (6, 300, 301, 302) by means of which the platform element may be suspended in the frame of a vehicle seat. At least some of the link means (300, 301, 302) are designed to collapse under abnormal load such as would occur in a vehicle collision from the rear, to allow the platform element to move relatively to the seat frame and thus to provide protection for the seat occupant against rearward impact.

Abstract: A seat suspension arrangement intended to provide greater protection for occupants of a vehicle seat in the event of a rearward collision in a motor vehicle, comprises a platform element intended to be supported in the frame of the back rest of a vehicle seat in order to provide support for the seat upholstery, the platform element comprising side rails (1) between which are coupled sinuous wire springs (3) and a plurality of link means (6, 300, 301, 302) by means of which the platform element may be suspended in the frame of a vehicle seat. At least some of the link means (300, 301, 302) are designed to collapse under abnormal load such as would occur in a vehicle collision from the rear, to allow the platform element to move relatively to the seat frame and thus to provide protection for the seat occupant against rearward impact.

Abstract: A seat suspension arrangement comprising a seat frame (5), upholstery supporting means (1, 3) suspended transversely between lateral margins (5a) of the seat frame (5) and adjustable link means (7) for varying the transverse tension in the upholstery supporting means (1, 3) to vary the effective profile of the support provided by said upholstery supporting means (1, 3), wherein a plurality of said adjustable link means (7) are provided, spaced apart in a direction parallel to said lateral margins (5a) of the seat frame (5), and means is provided for enabling adjustment of the relative lengths of said plurality of link means (7) in such a manner that the profile of the support can be varied, both to adjust the degree of support provided at a given point, and also to adjust the position of the point at which said support is provided.

Abstract: A seat arrangement comprises a platform element in the form of a wire grid comprising side rails (1) between which extend a plurality of supporting wires (3) having angled portions (3A) such that the platform element is transversely extensible under load. The side rails (1) are linked to a seat frame (5) by wire links (6) that are subject to a seat frame that are subject to only limited extension so that the rails are (1) are held thereby against substantial displacement from the plane of the frame (5). The rails (1) are also linked to the frame (5) by way of Bowden cables (9) that are anchored to the frame forwardly of the side rails (1) and that can be contracted to draw portions of the side rails (1) forwards between adjacent wire links (6), thus varying the contour of the platform element to provide adjustable lumbar support.