Container with flexible neck, especially useful as vase, has neck comprising ring sections with inwards and outwards sloping sides

摘要

The rings used to form the flexible neck comprise a top part with a thickness of 3 mm and sides that slope inwards at an angle of 21-51 deg. from the base of this part, and a bottom part with a thickness of 5 mm and sides that slope outwards at an angle of 90-130 deg. The diameter of the rings is reduced towards the top of the neck.