| 摘要 |
<p>PURPOSE:To reduce an assembling time greatly by providing a rubber bag with a packing part around its opening, its opening, inserting the packing part between the rims of an upper piece and a lower piece, and causing plastic deformation to connect it to the upper and lower pieces. CONSTITUTION:A packing part 6 is provided around the opening rim of a rubber bag 5, inserted between the rims of an upper piece 1 and a lower piece 2, and both are connected together causing plastic deformation. Thus, in connecting the upper piece 1 to the lower piece 2, the rubber bag 5 can also be fixed simultaneously, and assembling time can be greatly reduced.</p> |
