| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a rubber ring formed by knitting or twisting a plurality of rubber-core-containing strings and forming them into a ring shape by simple steps compared with conventional products.SOLUTION: A rubber ring 1 is formed by knitting or twisting a plurality of rubber-core-containing strings 13a, 13b, and 13c each of which includes rubber cores 15a, 15b, and 15c, and a fiber-yarn elastic cover 17a, 17b, and 17c for covering the rubber cores 15a, 15b, and 15c, and forming them into a ring shape. A rubber braid 11 configured by knitting or twisting the plurality of rubber-core-containing strings 13a, 13b, and 13c is formed into the ring shape by sticking both end faces thereof to each other. At both ends 19a and 19b of the rubber braid 11, the respective rubber cores 15a, 15b, and 15c, and the elastic covers 17a, 17b, and 17c are integrally hardened by a fixation agent 51, and the plurality of elastic covers 17a, 17b, and 17c are integrally hardened by the fixation agent 51 so that the plurality of rubber-core-containing strings 13a, 13b, and 13c ravel out. |
