Security retainer for doors has extension that deforms and folds against door when door is abruptly pushed such that door is made difficult to open

摘要

A guide support connects a door and an articulating shaft with respect to a fixed support that is attached to the door frame. The guide support includes a base from which an extension projects in a U-shape to be received by a lodging in the articulating shaft to terminate in individual ties oriented upwards. A spring at the extreme top of the shaft cushions the door when the door is pushed. Abrupt pushing of the door deforms the extension, which folds against the door, thus making the door difficult to open.