| 摘要 |
In reinforcing an eye hole for roping of a sheet-like article by setting grommet metal fittings therein, there is formed an incised hole nearly equal in diameter to the outer diameter of the cylindrical portion of a male grommet, and the tongues covering the incised hole, which are made through a process of radially incising at a position where the eye hole for roping is to be provided on the sheet body, in place of a circular through-hole heretofore in use. Each of the tongues and the peripheral region of the incised hole are pressed together while being enfolded by the grommet metal fittings being depress-deformed through a suitable means, thereby leading to reliably and strongly setting of the grommet metal fittings and increasing the tensile strength of the eye hole for roping. According to this invention, the use of one male grommet by itself will suffice as a grommet metal fitting; it is also feasible to reinforce the eye hole for roping in the sheet body of thick cloth or the multiple-ply cloth through the joint use of a male grommet and a ring or male and female grommets.
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