本发明涉及一种双层壁的挠性管，其特征在于，内和在一个轴向距离的螺旋形延伸以形成腔体增益的外壁之间被布置。 为了得到一个平滑越好，具有足够的柔性和生产技术来制造软管简单，本发明提出从螺旋形延伸的绕组分布构建此。 绕组分布是优选形状和相应的中心部分中的管的壁厚和在两侧邻接中心部分的外壁和内壁含有被连接到绕组轮廓的相邻表面附加扩展。 该加强件由轮廓中间部分形成或布置在后者的和/或在延伸部的空腔中。

The invention relates to a double-walled flexible tube, wherein between an inner and an outer wall of a helically spaced axially extending to form a cavity gain is arranged. To get a smooth as possible, sufficiently flexible and produced easily produced hose, the invention proposes, this build of a helically extending winding profile. The winding profile is preferably -shaped and includes a wall thickness of the tube corresponding central part and both sides adjoining the outer and inner wall of the center further extensions which are connected to adjacent surfaces of the winding profile. The reinforcement is formed by the profile middle section or arranged in the latter and / or in the cavity of the extensions.