| 摘要 |
A pocket mattress (10) comprising coil springs (2) arranged as spring units enclosed in a covering material (4) forming pockets (3), the spring units being arranged successively in elongate strings, the mattress comprising a plurality of such interconnected strings arranged side by side, wherein the elongate strings have a plurality of transverse seams (5) arranged parallel to the longitudinal direction of the coil springs (2) to separate the pockets (3), wherein a middle portion (8) of the transverse seams (5) attaches at least a layer of covering material (4) from either side of the spring unit to each other. At least some of the transverse seams (5) are back folded transverse seams (7), in which the covering material (4) in proximity to an end portion of the back folded transverse seams (7) is back folded towards the middle portion (8) of the transverse seams (5). Hereby, the back folded transverse seams (7) each have at least one end portion attaching at least twice as many layers of covering material (4) as in a corresponding transverse seam (5) which is not back folded. This provides a planar and smooth upper surface of the mattress, avoiding e.g. problems with protruding false lofts. |
