Abstract

The present invention relates to a coupling fastener for a container which is flexible at least in sections, for example a bag or a tube, comprising a first and a second longitudinal fastener strip which are equipped in each case with first and second fastener elements, and a coupler fastener which is provided with a longitudinal strip having adjacent third and fourth fastener elements which can be coupled reversibly, in particular tightly with respect to the environment, to the first and second fastener elements of the first and second fastener strips. Furthermore, the invention relates to a docking device which is formed by two coupling fasteners according to the invention. Here, the first and second fastener elements of the first coupling fastener engage into respective complementary first and second fastener elements of the second coupling fastener. Furthermore, the invention relates to a container which is flexible at least in sections and the opening of which is equipped with a coupling fastener according to the invention. Finally, the invention relates to a method for filling, refilling and/or emptying containers, in particular tightly with respect to the environment, with the aid of coupling fasteners according to the invention and the docking device according to the invention.

IPC Classes  ?

• B65B 1/28 - Controlling escape of air or dust from containers or receptacles during filling
• B65D 33/16 - End- or aperture-closing arrangements or devices