| 摘要 |
The invention relates to a venting band with at least two side strips extending parallel to one another and a center strip. Parallel to the side strips extend venting bands formed by continuously connected walls or webs. The venting bands can therein have diverse forms. At least one venting channel is provided; however, it is also possible to provide several venting channels. Through the use of certain materials with restoring forces for the venting band, the at least one venting channel can open automatically during the rolling out of the venting band. However, it is also possible, to bring about an opening of the at least one venting channel by pulling on the side strips. |
