| 摘要 |
A packing (1) having an annular rolled up section (3) and a hard holding section (4). The annular rolled up section (3) is formed by multiply rolling up a stretchable tubular net (2) from axially one end of the net (2) up to the other end while rolling up the one end side toward the radially outside. The holding section (4) is provided at axially the other end of the net (2). The axial length of the holding section (4) is set in a necessary and sufficient length which allows, when the holding section (4) is pushed into a center hole (5) of the annular rolled up section (3), the annular rolled section (3) to be expanded outward from the inside by the holding section (4), enabling the layers of the annular rolled up section (3) to be integrally rolled up. Also, the maximum width W of the holding section (4) is set greater than the diameter R of the center hole (5) of the annular rolled up section (3). This prevents only the outermost layer of the rolled up section from swelling when the holding section is pushed in, which achieves a sufficient damping function and prevents unexpected scattering of tablets etc. |
