公开(公告)号：US5213433A

公开(公告)日：1993-05-25

申请号：US782567

申请日：1991-10-25

Applicant: Lim S. An

Inventor： Lim S. An

IPC: B42D13/00 ,  B42F7/00 ,  B42F7/14 ,  B42F13/00 ,  B42F13/04 ,  B42F13/06 ,  B42F13/42

CPC classification number: B42F13/0006 ,  B42F13/42 ,  Y10S402/502

Abstract: A cardboard blank has a plurality of fold lines dividing the blank into section for folding into a loose leaf folder or a box file. The fold lines define two cover sections between which there is a spine portion having multiple spine fold lines defining a binding zone which can be formed as a double thickness ridge to which papers can be attached. The fold lines additionally define various flaps which can be folded flat onto the cover portions to form a loose leaf file or which can extend to form a box shape with the cover portions and spine portion.

Abstract translation: 纸板坯料具有多个折叠线，将坯料分成用于折叠成松散的叶子文件夹或盒子文件的部分。 折叠线限定了两个覆盖部分，在该部分之间具有脊部，该脊部具有多个脊线折叠线，其限定了可以形成为可附着纸张的双重厚度脊的捆扎区。 折叠线另外限定可以平坦地折叠到盖部分上以形成松散叶片的各种翼片，或者可以延伸以形成具有盖部分和脊部分的盒形。