Claims
- 1. A seating structure comprising:a backrest having a top and bottom and comprising a frame, wherein said frame comprises a pair of spaced apart side members defining an opening therebetween, each of said side members having a length; a flexible membrane extending between and attached to said side members across said opening, wherein said flexible membrane comprises multifilament yarns and an elastic material comprising elastomeric monofilaments; and an armrest moveably mounted to each of said side members, each of said armrest adjustably moveable along at least a portion of said length of said side members between at least a first position and a second position, wherein said first position is closer to said bottom of said backrest than said second position.
- 2. The seating structure of claim 1 wherein said armrests extend forwardly from said side members.
- 3. The seating structure of claim 2 wherein said armrest extend laterally outwardly from said side members.
- 4. The seating structure of claim 1 wherein said frame further comprises a top and bottom member connecting said side members, wherein said membrane extends between and is attached to said top and bottom members.
- 5. The seating structure of claim 1 wherein said membrane comprises a woven material.
- 6. A seating structure comprising:a backrest having a top and bottom and comprising a frame, wherein said frame comprises a pair of spaced apart side members defining an opening therebetween, each of said side members having a length; a flexible membrane extending between and attached to said side members across said opening, wherein said flexible membrane comprises an elastic material and wherein said flexible membrane is stretched between said side frame members; an armrest moveably mounted to each of said side members, each of said armrests adjustably moveable along at least a portion of said length of said side members between at least a first position and a second position, wherein said first position is closer to said bottom of said backrest than said second position; and a back support member disposed in said opening of said frame between said side members, said back support member contacting said flexible membrane.
- 7. The seating structure of claim 6 wherein said back support member is moveably connected to said frame and is moveable between said top and bottom of said frame.
- 8. A sealing structure comprising:a backrest having a top and bottom and comprising a frame, wherein said frame comprises a pair of spaced apart side members defining an opening therebetween, each of said side members having a length; a flexible membrane extending between and attached to said side members across said opening, wherein said flexible membrane comprises an elastic material and wherein said flexible membrane is stretched between said side frame members; and an armrest moveably mounted to each of said side members, each of said armrests adjustably moveable along at least a portion of said length of said side members between at least a first position and a second position, wherein said first position is closer to said bottom of said backrest than said second position, and wherein said side members each comprise an elongated opening extending along at least a portion of said length thereof, wherein at least a portion of said armrest is inserted into said elongated opening.
- 9. The seating structure of claim 8 wherein said side members each comprise a cavity communicating with said elongated opening, wherein each of said armrests is releasably engaged with said frame inside said cavity.
- 10. The seating structure of claim 9 wherein said armrests each comprise a guide member disposed in one of said respective cavities.
- 11. The seating structure of claim 9 wherein each of said armrests comprises a latch mechanism engaged with said frame.
- 12. A seating structure comprising:a backrest having a top and bottom and comprising a frame, wherein said frame comprises a pair of spaced apart side members defining an opening therebetween, each of said side members having a length; a flexible membrane extending between and attached to said side members across said opening; and an armrest moveably mounted to each of said side members, each of said armrests adjustably moveable along at least a portion of said length of said side members between at least a first position and a second position, wherein said first position is closer to said bottom of said backrest than said second position; wherein said frame comprises a channel, and further comprising a carrier member attached to said membrane, wherein said carrier member is inserted into said channel.
- 13. The seating structure of claim 12 wherein said carrier member is molded with an edge portion of said membrane.
RELATION TO OTHER APPLICATIONS
This application is a continuation of U.S. patent application Ser. No. 09/859,694, filed May 17, 2001, now U.S. Pat. No. 6,588,842, which is a continuation of U.S. patent application Ser. No. 08/347,475, filed Nov. 17, 1995, now U.S. Pat. No. 6,385,634, which was the National Stage of International Application No. PCT/US93/05731, filed Jun. 15, 1993, which is a continuation-in-part of U.S. patent application Ser. No. 07/898,907, filed Jun. 15, 1992, now abandoned, the entire disclosures of which are incorporated herein by reference.
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Continuations (2)
|
Number |
Date |
Country |
Parent |
09/859694 |
May 2001 |
US |
Child |
10/256988 |
|
US |
Parent |
08/347475 |
|
US |
Child |
09/859694 |
|
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
07/898907 |
Jun 1992 |
US |
Child |
08/347475 |
|
US |