Automatic reversible auxiliary lock for multi-point locks

摘要

In view of the aforementioned, this invention claims an arrangement of an automatic and reversible auxiliary lock comprising a sandwich structure comprising a rotatory plate being V-shaped and having bevelled front, hereinafter hook, an sliding horizontal trigger having tilting and bevelled head being V-shaped, mounted on a vertical turning axis, hereinafter tilting trigger, a first compression spring, a second compression spring and a drive spring, being all assembled and operative between two twin vertical plates which, with vertical sliding adjustment, are attached to the side walls of the auxiliary lock housing; he hook comprises a head and a foot, the head being behind the bevelled front and being flat and having such thickness that the sides remind matching the outside of the vertical plates, whereas the foot is encircled by sliding adjustment between the vertical plates, and said hook turns around the first axis being in the foot and, with respect to the extended operative position and the arrangement of the closing frame of the door in the lock, said first axis is escorted by a pair of forward collateral pegs and by a rear pierced wing, whereas, with respect to the rest operative position or the mechanism disposed to the automatic trigger of the closing when the door is driven to the frame, this hook having an horizontal shoulder and two side projections with "L" shape having the concavity in the rearwards; the tilting trigger is meant to adopt both tilted positions where, with respect to the closing turn of the door over the frame, the forward bevel in the tilting head remains behind with respect to the forward bevel of the front of the hook, and said tilting trigger having in the lower and rear part a vertical trigger being mounted on the second axis of turn being transverse to the body of the tilting trigger itself and, with respect to the rest position of the hook, this vertical trigger is meant to adopt a forward operative position, the tip being over the horizontal shoulder of the hook; the first compression spring operates between the rear front of the tilting trigger and the auxiliary lock housing.