Valve for automatically closing a plastic or metal tube, e.g. a toothpaste tube, comprises a valve tube made of elastic material, and radial inner and outer slats

摘要

A valve for automatically closing a plastic or metal tube (2), such as a tube for toothpaste, adhesive, or cream, comprises a valve tube (1) made of an elastic material, with radial slats (7) on the inside (8) at a lower level (5). Radial slats are located on the outside. The inner slats have a smaller cross section than the tube. A radial star is formed in an upper level of the tube, the star height corresponding to the valve inner radius.