DE3241091A1 - Door lock, especially for house and apartment closure doors - Google Patents

Abstract

To prevent inwardly opening house and apartment doors from being opened by pushing back the latch from outside the door, the latch is arranged in the striking plate (on the door frame). The oblique sliding face of the latch is located on the inside of the building/apartment, and the latch cannot be pushed back by the insertion of a rigid article into the gap between the lock (door part) and striking plate (frame part), because an inserted article comes up against the blocking face of the latch perpendicularly. The arrangement of the latch in the striking plate allows a simple and stable design of an electromagnetically actuated door opener which releases the (unlocked) door for opening by pulling back the latch.

Description

Door lock, in particular for house and apartment doors

The invention relates to a lock for apartment and house doors, in which the latch is arranged in the strike plate.

The usual, the DIN 18251 corresponding locks for apartment and House doors consist of a lock with latch and bolt (in the door) and the strike plate (in the door frame).

This arrangement has the disadvantage that with inwardly opening Doors - this is the rule - the bevelled sliding surface of the latch points outwards. By pressing in a sufficiently strong object (sheet metal, screwdriver) between the door lock and strike plate from the outside of the door, the one on the sloping side If the sliding surface of the trap hits, the trap can be pushed back and thus the door, provided that this is not additionally secured by the bolt, must be opened.

With the electrically remote-controlled commercially available door openers to open part of the strike plate turned away. Because this part of the strike plate to prevent opening of a slammed (not locked) door, must the remote-controlled opening mechanism must be stable and locked.

The object of the invention is to open the door by pushing it back to prevent the trap, and in addition, the design of a simple electromagnetic working remote-controlled door opener construction.

This task is solved in that the trap is not in the door, i.e. in the lock, but in the strike plate. The inclined sliding surface the trap is then on the inside of the building, which is parallel to the lock / door The restricted area is on the outside. By penetrating an object from the outside, which hits the blocking surface of the trap perpendicularly, the trap can no longer be pushed back will. The latch is arranged in the strike plate and has the usual stroke. In the door lock there is a snap-in opening opposite the trap. Slides when the door slams the latch first into the strike plate and as soon as the door is in position is "closed", the latch advances into the latching opening in the door lock and keeps the door shut.

In the snap-in opening is - in the rest position around the latch stroke withdrawn - the opening slide. When opening the door by pressing the handle or turning the key, the opening slide of the latch is pushed against, until this ends with the faceplate or protrudes slightly beyond it. The latch is then no longer in the latch opening and the door can be opened will.

With the electrically remote-controlled commercially available door openers part of the strike plate in the "open" state turned away so that the strike plate is opened. To counteract a forced opening of a locked door, this folding mechanism must be stable and locked. Oppose it if the trap is the remote-controlled lock, then those are significantly more interpretable one-piece strike plate and the already stable latch a much simpler one form-fitting connection between door and door frame.

An embodiment of a lock with a profile cylinder is shown in the drawings and explained below.

It shows Fig. 1: Lock and strike plate in the unlocked idle state "Door closed" Fig. 2 Lock and strike plate in the unlocked state "Open the door by operating the latch "Fig. 3: Lock and strike plate in the unlocked position State "opening the door by turning the key" Fig. 4a: Strike plate for electromagnetic Remote actuation, "closed" state Fig. 4b: same, "open" state The retraction device for the pawl, the locking mechanism and the "locked" state the usual locks and are not shown.

All figures show views of a lock in a DIN left battered door. Strike plate (2) and face plate (18) are there for reasons the representation moved apart.

In Fig. 1 the lock is shown in the rest position (door closed).

The latch (1) protrudes beyond the strike plate into the snap-in opening and lies with the front edge close to the opening slide (6). The trap spring (5) pushes the trap into the position shown. The trap is guided through the groove (3) and the bolt (4).

The opening slide (6) is located in the door lock by pressing the Spring (14) in the rest position, which is determined by the stop (11). The opening slide is guided by guide plates (17) and groove (7) with bolts (8).

The opening slide (6) is connected to the linkage (9) and (10) Nut (12) (pick-up for pawl) connected.

The linkage (13), rotatably mounted on the bolt (15), leads to the "Not locked" status in the turning circle of the locking bit (16). Will the latch actuated, i.e. pushed to the left in the illustration, the linkage (13) is not more in the turning circle of the lock bit.

In Fig. 2 the "open" position of the lock is when the pawl is actuated shown. The nut (12) is turned to the right by the usual angle via the latch turned. The nut turns clockwise into a leftward movement via the rod (10) of the rod (9) implemented, whereby the opening slide (6) to the left to slightly is pushed out over the faceplate (18). The trap (1) gives way to the Striker plate (2) back and enables the door to be opened.

t In Fig. 3 is the "open" position of the lock represented by turning the key. By turning the key to the right, the presses Lock bit (16) the rod (13) above the pivot point and the opening slide (6) to the left and thus the latch beyond the faceplate (18), the door can opened (see above).

In Fig. 4a and 4b is a design of the trap pull-in mechanism shown for electromagnetic remote opening.

Via the rod (19), rotatably mounted at point (20), the trap withdrawn when the electromagnet (21) is switched on (pulling the core into the coil), the door can be opened (if it is unlocked).

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Claims (2)

Patent claims., Door lock, especially for house and apartment doors, characterized in that the latch (1) is arranged in the strike plate (2) which Sliding surface of the latch for inward-opening doors on the inside of the building / apartment lies. The door lock (door part) has a snap-in opening for the latch, into which the trap protrudes when the door is closed. The door is opened by pushing it out the latch released from the locking opening by means of the opening slide (6) for opening. The trap is held in the resting position by spring force. 2. Door lock according to claim 1, characterized in that the trap (1) pulled back into the strike plate to open the door via electromagnetic drive can be drawn into it.