| 摘要 |
A resilient sheet for attaching across a seat frame to provide a resilient seating support comprises two lengths of flat metal strip (16) disposed in pockets along opposite edges of the sheet, the sheet being attached to the seat frame by hooks (14) engaging around the metal strips (16) through apertures (18) in the sheet. The sheet comprises strips (10) of elastic rubber or plastics material attached by vulcanisation to non-stretch material strips (10), the outer two of which are folded over to form the pockets for the metal strips. The resilient sheets are cut from a length of product formed by feeding the various strips (10,12,16) into a rotary curing machine to vulcanise the elastic strips and effect bonding of them to the non-stretch strips, the metal strips (16) flexing and passing satisfactorily through the rotary curing machine but exhibiting sufficient strength for attachment to the seat frame by the hooks (14). |
