Document file locking device - forms beak-type opening at peak to facilitate use
摘要
The stirrup-type locking device is for a document file. It forms a beak-type opening at the apex. The locking device uses round-section rods or wires (1,2) which are bent into a curve. The ends of two opposed rods abut when the file is closed and the documents are locked in place. The ends of the abutting rods are chamfered so that they overlap. USE - Locking device in file.