POCKETED SPRING UNIT AND METHOD OF MANUFACTURE
A resilient unit has strings of individual coil springs (not shown) inside pockets (120) are arranged in an array. The strings together form a spring unit and are each secured to a common cover sheetS, which comprises a non- woven elastic fabric. It is welded ultrasonically or thermally whilst under...
Saved in:
Main Authors | , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
10.04.2020
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Be the first to leave a comment!