(57) Abstract Objective The thing hitting to lock release lever 18, suddenlyThere is no possibility lock pin 16 releasing, onlyThe joint metallic parts of the door frame base whose verification of lock state is easyIt offers. Constitution Direction of crosspiece B of the door frame the upper part flexible pipe section 13 which facesFrequent appearance to provide lock pin 16 unrestrictedly on the edge strip, engagement section 14In complete penetration state revolution the lock release lever 1 which is supported unrestrictedlyTo provide 8, lock pin 16 inside concatenated flexible pipe 11 and the lockDirecting release lever 18 to the direction of crosspiece B of the door frame, pushingTo store ru leaf spring 17, inside the above-mentioned concatenated flexible pipe 11, thisOn the outside of the lock release lever 18 which this touches with leaf spring 17,With the revolution of lock release lever 18 the above-mentioned leaf spring 17The cam surface 2 which is made to save to the direction which is opposite to the direction of crosspiece B of the door frame6 is formed.
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