| 摘要 |
PCT No. PCT/GB91/02154 Sec. 371 Date Sep. 22, 1992 Sec. 102(e) Date Sep. 22, 1992 PCT Filed Dec. 4, 1991 PCT Pub. No. WO92/10828 PCT Pub. Date Jun. 25, 1992.Sheet means (10) comprises a sheet of material (12) having mutually transverse sets of concertina folds (14, 16), sealing means (18, 20) to seal the same in a folded condition and defined opening means (18, 20), e.g. a marked and/or weakened break line (54) at which the sealing means can be opened, attachment means (36) for attaching the sheet means (10) to an article (28), diagonally opposite segments (22) of said sheet (12) being adapted one for attachment to the article and the other to be pulled free to open the sheet fully with a single movement once the sealing means have been opened. The penultimate section (80) and ultimate section (86) may project respectively beyond opposite sides (82, 88) of the underlying sections to allow adhesive strips (18, 20) to affix directly to the article (28) or only the ultimate thickness (segment) (26) may be extended (at 90) and so project. Sheet (12) may have a projecting tab (38 )with adhesive portions (40, 46) that folds over to cover the main part of the sheet and attach it to an article or may have a separate cover piece, e.g. in the form of a loop (58) surrounding the folded sheet. |
