| 摘要 |
PROBLEM TO BE SOLVED: To improve joint dent caused by an uneven distance between code centers at a joint part of a zipper joint. SOLUTION: End faces Es of respective side edges 14E of a base cloth ply 14 obtained by cutting a raw ply 13 are abutted and jointed to each other, so as to form a cord ply 10. A code sequence 12 in the base cloth ply 13 comprises 2-8 side codes 11e arranged on a side edge 14E, and central codes 11c arranged between them. The respective codes 11e, 11c are arranged at the same intervals, and elongation Le of the side code 11e from an initial condition where an initial load of 2N is applied to a loaded condition where a load of 50N is applied is made 1.4 to 2.0 times the elongation Lc of the code of the central code 11c. COPYRIGHT: (C)2006,JPO&NCIPI
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