An attack, ballistic and blast resistant door that includes integral concealed mortised four bolt-strike locking assemblies where the bolts are retracted with one hand operation for opening the door and are automatically extended for locking the door with closure of the door. The door has a door frame with four adjustable concealed striker receivers within the door frame. The door has four interconnected concealed mortised bolt lock assemblies, each with a biased bolt, wherein one of the bolt lock assemblies has an engageable brake to hold all four interconnected biased bolts in retraction when the door is opened after a handle interconnected with the four biased blots is moved to a door open position. A roller assembly is provided in the one bolt lock assembly biased to extend and move out from the door when the door is opened and releases the brake and allows the biased bolts to extend and move into the strike receivers when the extended roller assembly is moved inwardly toward the door. A manually adjustable ramp is on a strike plate cover over the strike receiver opposite of the one bolt lock assembly with the engageable brake. The ramp adjustably engages the roller assembly to further move away from or toward the door to adjustably release the brake.

A noise reduction strike plate covering including a sheet of noise dampening material adaptively shaped to cover a strike plate in a door frame with a portion of the sheet including a bolt hole insert adaptively shaped to insert a bolt hole through the strike plate and a portion of the sheet including a strike ramp grip adaptively shaped to grip an end of a strike bolt ramp of the strike plate.

The object of the invention is a seal (10) for an inlet opening (120) of a latch (100), in particular a motor vehicle latch, having at least a partially flexible sealing element (11) with at least an insertion slot (12), whereby a first seal wing (11.1) and a second seal wing (11.2) are formed on the sealing element (11), whereby a striker can at least be partially arranged in the inlet slot (11).

A noise reduction strike plate covering including a sheet of noise dampening material adaptively shaped to cover a strike plate in a door frame with a portion of the sheet including a bolt hole insert adaptively shaped to insert a bolt hole through the strike plate and a portion of the sheet including a strike ramp grip adaptively shaped to grip an end of a strike bolt ramp of the strike plate.

The invention relates to a motor vehicle door locking system, comprising a motor vehicle door lock (1) on a motor vehicle door (2) and a lock retainer (3), interacting therewith, on a motor vehicle body (4), or vice versa, according to patent application DE 10 2014 007 119.7, characterized in that a hold-back element (5) is provided which keeps clear an inlet opening (6) for the lock retainer (3) in the motor vehicle door lock (1) even in the event of deformations of the motor vehicle door (2) caused by an accident, wherein the hold-back element (5) keeps the opening clear on account of a shaping of the hold-back element.

A locking piece includes a housing which has a, in particular, rectangular housing opening and a slide which is arranged in the housing. At the housing side, the slide is guided so as to be able to be linearly displaced between two end positions and which has a locking arm which extends at right-angles with respect to the displacement direction of the slide and protrudes forward through the housing opening. A spring clip is arranged behind the slide, which spring clip extends in the displacement direction and which is anchored at the two clip ends thereof in the housing. The slide is arranged between the housing and the spring clip and is retained in abutment with the housing by the spring clip.

The object of the invention is a seal (10) for an inlet opening (120) of a latch (100), in particular a motor vehicle latch, having at least a partially flexible sealing element (11) with at least an insertion slot (12), whereby a first seal wing (11.1) and a second seal wing (11.2) are formed on the sealing element (11), whereby a striker can at least be partially arranged in the inlet slot (11).

An apparatus and method for adjusting a door latching mechanism is shown and illustrated. The apparatus comprises a subplate and a strike plate. The subplate is installed against a door frame at latching location underneath the strike plate. The subplate has a front side and a rear side with different widths and defining a bolt aperture. The user can install the subplate in any variation to present an additional latching edge to a latch bolt. In addition, the subplate may have an adjustable tab which may be positioned inward toward the door frame or outward away from the door frame. The adjustable tab presents an additional latching edge for the latch bolt.

The invention relates to a motor vehicle door locking system, comprising a motor vehicle door lock (1) on a motor vehicle door (2) and a lock retainer (3), interacting therewith, on a motor vehicle body (4), or vice versa, according to patent application DE 10 2014 007 119.7, characterized in that a hold-back element (5) is provided which keeps clear an inlet opening (6) for the lock retainer (3) in the motor vehicle door lock (1) even in the event of deformations of the motor vehicle door (2) caused by an accident, wherein the hold-back element (5) keeps the opening clear on account of a shaping of the hold-back element.