03-10-2019 дата публикации
Номер: US20190299694A1
Принадлежит:
Method for binding a bundle () of leaves () in a binding back (), whereby the bundle () is placed in the binding back () with an edge () of the leaves () and fastened therein, characterised in that for the binding use is made of a bundle () of leaves () of which a strip () of each of the leaves () has been separately double folded beforehand along the same line to form a fold line () that extends parallel to and at a distance (A) from the aforementioned edge (). 15115. A method for forming a bundle () of leaves () , characterised in that each leaf () of the bundle () is separately double folded by applying the following steps:{'b': 1', '18', '4', '18', '4', '1, 'clamping of a leaf () to be folded between two plates () except for a strip () with a width (A) that protrudes between the plates (), the partial folding of the protruding strip () being in a direction (Y-Y′) perpendicular to the plane of the leaf ();'}{'b': 4', '18', '4', '22', '21', '22', '19', '18, 'further folding of the strip () by pushing the plates () with the partially folded strip () into the funnel-shaped groove () or between two rollers with sprung or fixed suspension or by moving a profiled element () with the funnel-shaped groove () over the edge () of the plates (),'}{'b': 22', '18', '4, 'moving the funnel-shaped groove () and the plates () with the folded strip () away from one another;'}{'b': 4', '1', '4', '18, 'folding back the folded strip () up to the plane of the leaf () and further up to a partially folded position of the strip () on the opposite side of the plates (); and'}{'b': 4', '18', '4', '22', '21', '22', '19', '18', '4', '1, 'further folding of the strip () by pushing the plates () with the partially folded strip () into the funnel-shaped groove () or between two rollers with sprung or fixed suspension, or by moving the profiled element () with the funnel-shaped groove () over the edge () of the plates () and then withdrawing it back and folding the folded strip () back into the ...
Подробнее