| 摘要 |
PURPOSE:To easily repair plural layered sheet with holes so as to maintain a sealed state for a long period of time by forming the titled tool by a male cap having a protruded engagement projection and a female cap provided with a depression to be engaged, and penetrating the engagement projection through a hole so as to engage the projection with the depression to be engaged. CONSTITUTION:A male cap 6 has a male screw 9 protruding at the center of the pressing surface of a member 8 pressing one side of the sheet. A female cap 7 has a female screw 11 capable of screwing with the male screw 9, at the center of the pressing surface of a member 10 pressing the other side of the sheet. The member 8 pressing one side of the sheet in the male cap 6 and the member 10 pressing the other side in the female cap 7 press and hermetically bond to seal a front surface sheet 2 of the plural layer sheet 1 and a back surface sheet 3 thereof, at the peripheral edge portion of a hole 12. Thus, it is possible to repair the hole 12 formed on the plural layer sheet 1 by the extremely simple operation of only passing the male screw 9 through the hole 12 and clamping the male screw 9 to the female screw 11. |
