Seat comprising a fabric tensioned over spaced rigid members

Claim 2

A seat component comprising a rigid frame comprising two mutually parallel side members and two mutually parallel end members interconnecting the ends of the side members, a pair of mutually spaced rigid tensioning members extending parallel to and spaced from the side members on the opposite side of the frame to the body of an occupant of a seat incorporating the seat component, support means rigidly connected to the frame, a fabric cover extending from the tensioning members so as to cover the frame and resilient means connected between the tensioning members and the frame so as to urge the tensioning members away from the frame and thereby to put the fabric cover under tension.

Claim 3

A seat component comprising a first rigid frame comprising two mutually parallel side members and two mutually parallel end members interconnecting the ends of the side members, a second rigid frame parallel to and spaced from the first frame on the opposite side thereof to the body of an occupant of a seat incorporating the seat component, support means having outwardly turned upper ends, a fabric sleeve substantially enclosing the first and second frames, U-shaped inserts, wherein the first rigid frame side members comprise a sinuous shape containing upper and lower convolutions forming recesses extending substantially along the length of each of the side members, the upper convolutions having a rounded edges to which the fabric sleeve is wrapped around while the outwardly turned upper ends of the support means are engaged in the U-shaped inserts which, in turn are inserted into the lower convolution of the side member of the first frame, the fabric sleeve enclosing the first and second frames with the part thereof which covers the second frame engaging between each of the U-shaped inserts and the corresponding lower convolutions on the side members of the first frame, and resilient means connected between the first frame and the second frame so as to urge the first and second frames apart from each other and thereby to put the fabric sleeve under tension.

Claim 4

A seat component comprising a first rigid frame comprising two mutually parallel side members and two mutually parallel end members interconnecting the ends of the side members, a second rigid frame parallel to and spaced from the first frame on the opposite side thereof to the body of an occupant of a seat incorporating the seat component, support means having outwardly turned upper ends, a fabric sleeve substantially enclosing the first and second frames, U-shaped inserts, wherein the first rigid frame side members comprise a sinuous shape containing upper and lower convolutions forming recesses extending substantially along the length of each of the side members, the upper convolutions having a rounded edges to which the fabric sleeve is wrapped around while the outwardly turned upper ends of the support means are engaged in the U-shaped inserts which, in turn are inserted into the lower convolution of the side member of the first frame, the fabric sleeve enclosing the first and second frames with the part thereof which covers the second frame engaging between each of the U-shaped inserts and the corresponding lower convolutions on the side members of the first frame, and resilient means connected between the first frame and the second frame so as to urge the first and second frames apart from each other and thereby to put the fabric sleeve under tension.