公开(公告)号：US5522496A

公开(公告)日：1996-06-04

申请号：US327682

申请日：1994-10-21

Applicant: Kurt D. Wostenfeldt

Inventor： Kurt D. Wostenfeldt

IPC: B42F7/14 ,  B65D5/50

CPC classification number: B42F7/145

Abstract: This invention relates to an open topped box file which includes a rectangular base, side walls which are connected to the base, a hinge arrangement on the base which enables the side walls to be moved away from each other and bridge elements which extend between the ends of the side walls with the bridge elements being extensible to enable the side walls to be moved away from each other.

Abstract translation: 本发明涉及一种开放式顶盒文件，其包括矩形基座，连接到基座的侧壁，在基座上的铰链装置，其能够使侧壁彼此远离并且在端部之间延伸的桥接元件 的侧壁，其中桥元件是可延伸的，以使得侧壁能够相互远离地移动。