BELLOWS WITH AT LEAST TWO GROOVES IN LOBED REGIONS AND/OR GUIDE REGIONS

The aim of the invention is to provide a bellows which can be readily secured on a joint housing in a sealing manner. Such a bellows is provided with a first and a second securing region and a foldingregion arranged therebetween. The first securing region has lobed regions and/or guide regions, connection regions, and a binder seat region which comprises at least two grooves at least in the lobedregions and/or in the guide regions starting from a binder seat region surface, said grooves being parabolic when viewed in the cross-section and having a different depth within the lobed regions and/or the guide regions. 为了解决本发明所提出的上述问题，提供一种螺纹管，该螺纹管能够良好密封地固定在接头壳体上；提供一种螺纹管，该螺纹管具有第一固定区域和第二固定区域以及布置在第一固定区域和第二固定区域之间的螺纹区域，其中第一固定区域包括叶片区域和/或引导区域和连接区域以及连接器底座区域，从连接器底座区域表面起始，该连接器底座区域在至少在叶片区域和/或引导区域中包括至少两个槽，所述槽在截面中看是抛物线形的，并且在叶片区域和/或引导区域内具有不同的深度。