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1. (WO2017157229) METHOD FOR USING DOUBLE-LAYERED PROTECTIVE ZIPPER

Pub. No.:    WO/2017/157229    International Application No.:    PCT/CN2017/076136
Publication Date: Fri Sep 22 01:59:59 CEST 2017 International Filing Date: Fri Mar 10 00:59:59 CET 2017
IPC: A44B 19/34
A44B 19/24
Applicants: ZHENG, Yunting
郑运婷
Inventors: ZHENG, Yunting
郑运婷
Title: METHOD FOR USING DOUBLE-LAYERED PROTECTIVE ZIPPER
Abstract:
A method for using a double-layered protective zipper. The double-layered protective zipper comprises a zipper base (1), an upper chain (2), a lower chain (3), and a steel tape measure (4). The upper chain (2) comprises a left upper chain (9), a right upper chain (10), a zipper head closing element (11), and a zipper tail closing element (12). The lower chain (3) comprises a left lower chain (13) and a right lower chain (14). The steel tape measure (4) comprises a housing (15) and a steel tape strip (16). The steel tape strip (16) is arranged below the zipper base (1). The left upper chain (9) is provided with left upper teeth (18) and left insertion-proof plates (19). The right upper chain (10) is provided with right upper teeth (21) and right insertion-proof plates (22). When in use, the double-layered protective zipper is arranged on a piece of luggage, with the double-layered protective zipper being provided with the two chains and the steel tape measure (4), and the upper chain (2) being provided with the left insertion-proof plates (19) and the right insertion-proof plates (22), the left insertion-proof plates (19) and the right insertion-proof plates (22) are utilized to close the corresponding gaps between the left upper teeth (18) and the right upper teeth (21), and the steel tape strip (16) of the steel tape measure (4) is utilized to close the two chains; hence, when a criminal is inserting a sharp tool into the chains, the sharp tool is blocked by the steel tape strip (16), thus increasing the difficulty for the criminal to open the zipper by inserting the sharp tool.