Backpack comprises support frame, which mechanically stretches rear wall of backpack, when wearing backpack, where support frame comprises support element, which is removed reversibly from rear wall

摘要

The backpack (1) comprises a support frame, which mechanically stretches a rear wall (11) of the backpack, when wearing the backpack. The support frame comprises a support element (2,2'), which is removed reversibly from the rear wall. The support element is applied as a working rod. An independent claim is also included for a method for application of a support element of the backpack.