Extraordinary open device being attached grid

摘要

(57) Abstract Objective With simplicity and strong structure, crime prevention and emergency opening,Maintenance, the emergency release which can achieve the functions of the legal adaptation of safety and the likeBeing cheap in the market, it offers the device being attached grid. Constitution The slider of the channel which formed the refraction piece on both sidessu of the channel which is joined with the Sliding connection board of the other isomorphic each portable bridgeMaking opposition condition engage in the rider, inside the carriage rail at regular interval SlidingAs motion it tries to be able to move unrestrictedly, the pulling spring and the ropeWith, if it makes lock release, interval of each portable bridge reducingThose which establish the extraordinary release function where you can obtain the opening quickly.