Seating suspension diaphragm having integrated slide-in attachment means
A method of upholstering a seat having a seating frame, and a corresponding attachment assembly, comprises providing a diaphragm generally having a weave of warp and weft yarns with an attachment member for installation of the diaphragm to the seat. The attachment member comprises an adapter strip and a coil member. The coil member is adapted to be intertwined with the weave of the diaphragm and thereafter inserted into and held by the channel in the seating frame. The adapter strip may be connected to the coil member to facilitate feeding the assembly through the channel in the seating frame. Alternately, the adapter strip can replace the channel in the seating frame and instead provide a mounting structure to which the diaphragm can be attached through the coil member's engagement with the adapter strip. A retainer sheet may also be used to maintain a desired tension of the diaphragm during installation.
1. A method for forming a seat by installing a seating diaphragm to a seating frame, wherein said diaphragm comprises an open weave of warp and weft yarns defining a plurality of openings therebetween, said method comprising:
stretching the diaphragm to a desired tension wherein each of said openings in the diaphragm has a tensioned size and shape;
providing a retainer sheet for maintaining the desired tension of the diaphragm when it is installed onto the seating frame, wherein said retainer sheet comprises a generally flat base membrane having a plurality of projections projecting outwardly therefrom, each of said projections having a cross-sectional size and shape that complements the tensioned size and shape of the openings in the diaphragm;
attaching the retainer sheet to the stretched diaphragm by inserting each projection in a respective opening of the diaphragm;
installing the diaphragm to the seating frame; and
removing the retainer sheet from the diaphragm after the diaphragm is installed onto the seating frame.
2. The method according to claim 1 , wherein the step of removing the retainer sheet from the diaphragm comprises peeling the retainer sheet off the diaphragm.
3. The method according to claim 1 , wherein the step of removing the retainer sheet from the diaphragm comprises pressing the projections back through the openings until the retainer sheet is disengaged from the diaphragm.
4. The method according to claim 1 , wherein each of the projections is tapered.
5. The method according to claim 1 , wherein the plurality of projections extend normally from the base membrane.
6. The method according to claim 1 , wherein the plurality of projections are arranged in a grid pattern on the base membrane.
7. The method according to claim 1 , wherein the step of attaching the retainer sheet comprises inserting each projection into and through a respective opening to a position where the base membrane of the retainer sheet is adjacent to the diaphragm.
8. The method according to claim 7 , wherein the step of inserting each projection into and through a respective opening further comprises inserting each said projection to a position where the base membrane of the retainer sheet is generally flush with the diaphragm.
9. The method according to claim 1 , wherein the retainer sheet, when attached to the diaphragm, does not inhibit flexing of the diaphragm as it is being installed in the seating frame.
10. The method according to claim 1 , wherein the step of attaching the retainer sheet comprises inserting each projection into a respective opening of the diaphragm, and pressing on an opposing face of the base membrane until the projections are snuggly fit into their respective openings.
11. The method according to claim 10 , wherein the steps of inserting each projection of the retainer sheet into a respective opening of the diaphragm and pressing on the opposing face of the base member further comprises using a roller applied to the opposing face of the base membrane.
12. The method according to claim 1 , wherein the retainer sheet further includes a backer sheet attached to the base membrane on a face thereof opposing the face with the projections extending therefrom.
13. The method according to claim 12 , wherein the backer sheet is either molded or laminated to the opposing face of the base membrane.
14. The method according to claim 12 , wherein said backer sheet comprises a woven fabric.
15. A method for forming a seat by installing a seating diaphragm to a seating frame, wherein said diaphragm comprises an open weave of warp and weft yarns defining a plurality of openings therebetween, said method comprising:
stretching the diaphragm to a desired tension wherein each of said openings in the diaphragm has a tensioned size and shape;
providing a retainer sheet for maintaining the desired tension of the diaphragm when it is installed onto the seating frame, wherein said retainer sheet comprises a generally flat base membrane having a plurality of projections projecting outwardly and normally extending therefrom and being arranged on said base membrane in a grid pattern, each of said projections having a cross-sectional size and shape that complements the tensioned size and shape of the openings in the diaphragm;
attaching the retainer sheet to a portion of the stretched diaphragm by inserting each projection in a respective opening of the diaphragm until the projections are snuggly fit into their respective openings;
installing the diaphragm to the seating frame; and
removing the retainer sheet from the diaphragm after the diaphragm is installed onto the seating frame.
16. The method according to claim 15 , wherein the step of attaching the retainer sheet comprises inserting each projection into and through a respective opening to a position where the base membrane of the retainer sheet is adjacent to the diaphragm.
17. The method according to claim 16 , wherein the step of inserting each projection into and through a respective opening further comprises inserting each said projection to a position where the base membrane of the retainer sheet is generally flush with the diaphragm.
18. The method according to claim 15 , wherein the step of removing the retainer sheet from the diaphragm comprises peeling the retainer sheet off the diaphragm.
19. The method according to claim 15 , wherein the retainer sheet further includes a backer sheet attached to the base membrane on a face thereof opposing the face with the projections extending therefrom.