Method of manufacture of a bellows a container and a bellows obtained.

摘要

Maintaining elements 1A to 1E internal to the bellows are held spaced in parallel with a spacing e which corresponds to the total extension of the bellows and a sheet 3 constituting the latter is fixed by bonding using heat only to the lateral faces 2 of the elements 1A to 1E, then the pleats are made by bringing these elements closer together one against another, so that the bellows can, in use, be totally extended with its walls set completely flat. IMAGE