| 摘要 |
A method of at least partially enclosing springs in separate pockets of flexible sheet material, including the steps of at least partially preforming a spring pocket in said flexible sheet material with said pocket having a closable opening thereto, positioning said spring in said pocket, closing said opening by clamp means (1, 1) which bring opposing portions of said flexible sheet material defining said opening in juxtaposition, said clamp means corrugating said opposing portions and inserting an elongate engaging portion (8) through said corrugations to at least partially close said pocket opening about said spring. |
