EP0143332A1 - Quick release catch for a locked door - Google Patents

Abstract

1. Quick release device for an outwardly opening, locked door (4), the mortise dead lock (5) of which engages with its locking bolt (8) into a striking plate (12) consisting of a stationary inner component (15) and a movable lap component (16), of which the inner component (15) is fixed, opposite the lock face plate (6), in a recess of the fixed door frame (2) and of which the lap component (16) is situated on the outer face of the fixed frame (2), a bolt (24), capable of being actuated independently of the mortise dead lock (5) being journalled on the inner component (15), which (bolt 24), in the locking position, is in engagement with the lap component (16) and, after quick release, disengages the lap component (16), so that the latter, as the door (4) is opened, can be lifted off the preclosed locking bolt (8) from the outside of the fixed frame (2), characterized in that the preclosed locking bolt (8) bears against the lap component (16), the engagement of which with the locking bolt (8) can be cancelled from the inside of the fixed frame (2).

Description

The invention relates to a quick release device for a locked door, in particular for an outward opening outer door, the mortise of which engages with a latch and locking bolt in an angled striking plate fastened to the frame.

Locked exterior doors have often proven to be an insurmountable obstacle in an emergency, even when the door key was at hand.

In emergencies, for example in the event of a fire, it is often important for the saving of human lives that the locked outer door blocking the escape route can be opened quickly from the inside. The panic that quickly sets in with such events rarely allows a plan moderate action on the part of those affected. Even inserting the existing key into the lock can prove impossible in the event of a panic-dictated rush to the door.

The invention is therefore based on the object of providing a quick-release device for a locked door which, in an emergency, allows the door to be opened immediately from the inside without the use of a key and without the use of destructive force.

The object is achieved according to the invention in that the striking plate consists of an inner part opposite the lock face plate fastened in a recess of the frame and a flap part located on the outside of the frame, the latch and locking bolt, and that the inner part and the flap part are releasably connected to one another by a lock that can be lifted from the inside of the frame.

According to the basic idea of the invention, the striking plate consists of two parts, namely the inner part fixedly attached to the frame and the outer flap part which is only locked to the inner part but is not otherwise fastened to the frame. This flap part can be unlocked quickly from the inside of the frame according to the basic idea of the invention, so that the door can be pushed open from the inside to the outside without retracting the key of the locking bolt and, of course, also without push-button actuation to retract the latch of the mortise lock, the door Lobe part of the striking plate takes to the outside due to the still existing engagement with the lock. The lock between the inner part and the rag Part of the striking plate can be designed so that the two striking plate parts can be put together again after actuation of the quick-release device, ie they can be locked together.

In the preferred embodiment of the quick release device, a rotary latch is rotatably and axially immovably mounted on the inner part, which is non-positively connected to an actuating shaft extending to the inside of the frame and, in the locked position, engages in a locking opening or the like of the flap part, from which it engages by rotating the actuating shaft can be disengaged by a small angle of rotation to release the flap part. The use of a rotary latch enables on the one hand a secure mounting of the tab part on the inner part in the locking position and on the other hand a quick unlocking and release of the tab part by slight rotation of the actuating shaft.

A particularly simple and compact design of the quick-release device is achieved if the rotary latch is attached directly to the inner end of the actuating shaft, which is rotatably and axially immovably mounted on the inner part, and can be rotated in a plane parallel to the flap part. In this embodiment, the actuating shaft simultaneously takes over the mounting of the rotary bolt, for its pivoting or rotating path within the two-part striking plate, because of its rotating plane parallel to the flap part, there is only a small space requirement.

In the pursuit of the inventive concept, a handle is attached to the outer end of the actuating shaft that is guided through the frame. Using this handle, for example a handle similar to a handle, can be done quickly the torque required to unlock the device is transferred to the rotary latch. Since the handle is permanently attached to the actuation shaft, it is immediately available for actuation in an emergency. Since it is located approximately at the level of the door handle, it is also in a position that is convenient for actuation.

In order to avoid confusion with the door handle, or at least to make it more difficult, the handle, which has a handle-like shape, is fastened to the actuating shaft in an essentially vertically oriented manner in the locked position. This distinguishes the handle sufficiently from the essentially horizontally oriented door handle. For further differentiation, the handle of the quick-release device can of course also be given a shape and color that is very different from the lever handle shape.

A particularly simple design of the striking plate inner part is obtained if it is bent from a flat bar in a U-shape and bent at both ends to form mutually aligned fastening flanges which are aligned parallel to the lock faceplate and can be inserted into the frame, and if the inner part of the inner part is bent Bearing block for the actuating shaft and the rotary bolt attached to it is attached.

A correspondingly simple design of the flap part is obtained if it is essentially a rectangular, flat and flush plate to be let into the outer surface of the frame, which in the locked position rests against the inner part and on the back is a locking opening opposite the rotary latch defining lead.

The arrangement is expediently such that the projection defining the locking opening is bent out approximately U-shaped from a flat bar, which otherwise rests on the tab part in the area of engagement of the latch and the locking bolt, reinforcing the tab part, and is fastened thereon. In this way, the flap part is stiffened in the area of engagement with the latch and the locking bolt, so that deflections during normal use, i. H. in the locked position, there is no fear.

The arrangement is expediently such that the rotary bolt and the associated locking opening are in their height between the latch and the locking bolt. In this way, a secure central locking of the tab part abutting the inner part is achieved.

For a full functionality of the quick release device according to the invention, it is completely sufficient if after releasing the lock and pressing the door, the flap part is no longer connected to the inner part of the striking plate, so that the flap part can fall down as a throw-off part. However, the arrangement is preferably such that the flap part is connected to the inner part via a handlebar arrangement, by means of which, when the lock is released, a pivoting displacement of the flap part to the outside is made possible with the release of the latch and the locking bolt. The flap part hinged to the inner part can be moved back into its locking position immediately after actuation of the quick-release device and can be fixed by the rotary latch.

The handlebar arrangement expediently consists of two articulated levers which are articulated on the one hand in the vicinity of the fastening flanges on the inner part and on the other hand in each case on an end fold of the flat bar forming the locking opening of the flap part, the articulation points each being formed by vertically arranged pivot bolts, pivoting because of this arrangement the two articulated levers when the lock is released and pressure on the door approximately in parallel horizontal planes,

The arrangement can be such that the pivot bolts located on the end folds in the locked position of the striking plate parts lie somewhat further from the flap part than the pivot bolts on the inner part. This arrangement ensures that the unlocked tab part initially moves approximately parallel to the outside, so that it can exit from the inlet opening of the frame, in which it is located in a form-fitting and as seamlessly as possible, before leading away from the latch and the locking bolt of the lock Pivoting begins.

In continuation of the inventive concept, the rotary latch can also be designed as a two-armed rotary latch, the arms of which are oriented essentially vertically in the locked position and engage with their ends behind associated projections of the tab part. In this embodiment too, only a slight rotation of the rotary latch is sufficient to bring about the unlocking of the tab part. The vertical alignment of the rotary latch is very space-saving, so that the striking plate, d. H. the flap part can have a smaller width.

For the functionality of the quick release device, it is advantageous if the actuating shaft is secured against unintentional rotation by means of a latch that can be released by means of the handle. The cooperating locking elements to be provided for this purpose are to be arranged so that one locking element is located on a part rotating with the actuating shaft and the other locking element is located on a stationary part, the flap part and the elements located on it in this definition in any case in the locked position are stationary parts. Thus, the arrangement can be such that, on the one hand, latching elements are attached to the rotary latch and to the associated locking surface (s) of the tab part.

• Fig. 1 einen abgebrochenen Schnitt entlang der Linie I-I in Fig. 2 durch die Schloßsituation einer Außentür,
• Fig. 2 die abgebrochene Außenansicht der Schloßsituation der Außentür,
• Fig. 3 die Ansicht des in den Blendrahmen eingebauten Schließbleches von der Falzseite her gesehen,
• Fig. 4 die Rückansicht des Lappenteils,
• Fig. 5 einen der Fig. 1 ähnlichen Schnitt, jedoch bei aufgehobener Verriegelung, aber noch geschlossener Tür,
• Fig. 6 einen der Fig. 5 entsprechenden Schnitt unmittelbar nach dem Aufdrücken der Tür von innen her,
• Fig. 7 einen der Fig. 6 entsprechenden Schnitt, bei welcher die mit der Tür verbundenen Teile sich vollständig von den Schließblechteilen gelöst haben,
• Fig. 8 einen Schnitt durch die Schließblechteile entsprechend der Schnittverlaufslinie VIII-VIII in Fig. 2 mit eingezeichnetem Gelenkhebel,
• Fig. 9 einen der Fig. 8 entsprechenden Schnitt bei vollständig ausgeschwenktem Lappenteil,
• Fig.10 die abgebrochene Rückansicht des Schließbleches gemäß Fig. 8, gesehen in Richtung des Pfeiles X,
• Fig.11 die abgebrochene Rückansicht des Lappenteils bei einer anderen Ausführungsform des Drehriegels,
• Fig. 12 eine Seitenansicht der in Fig. 11 gezeigten Teile und
• Fig.13 einen abgebrochenen Schnitt entlang der Linie XIII-XIII in Fig. 12.

Further details of the invention are explained in more detail below with the aid of exemplary embodiments in a schematic representation of the drawings. It shows:

• 1 is a broken section along the line II in Fig. 2 by the lock situation of an outer door,
• 2 shows the broken external view of the lock situation of the outer door,
• 3 seen the view of the striker built into the frame from the folded side,
• 4 shows the rear view of the flap part,
• 5 is a section similar to FIG. 1, however when the lock is released but the door is still closed,
• 6 shows a section corresponding to FIG. 5 immediately after the door has been pressed open from the inside,
• 7 shows a section corresponding to FIG. 6, in which the parts connected to the door have completely detached from the striking plate parts,
• 8 shows a section through the striking plate parts corresponding to the section line VIII-VIII in FIG. 2 with the articulated lever shown,
• 9 shows a section corresponding to FIG. 8 with the flap part swung out completely,
• 10 shows the broken rear view of the striking plate according to FIG. 8, viewed in the direction of arrow X,
• 11 shows the broken rear view of the flap part in another embodiment of the rotary latch,
• Fig. 12 is a side view of the parts shown in Fig. 11 and
• Fig. 13 is a broken section along the line XIII-XIII in Fig. 12.

In the drawings, FIGS. 8 to 10 and 13 are shown on a larger scale than the other figures.

To explain the basic installation situation of the quick release device according to the invention, reference is first made to FIGS. 1 to 3. 1 shows a frame 2 installed in masonry 1, in which the outer door 4 shown closed in the direction of arrow 3 is located. A commercially available mortise lock 5 is installed in the door 4, from whose faceplate 6 the latch 7 and the locking bolt 8 in the closed position protrude. The invention can of course also be used in connection with a mortise lock which has several locking bolts or only one lockable latch. The lock is assigned a door handle 9 located on the inside of the door and a door knob 10 on the outside. Door handles 9 and door knob 10 are each attached in long plates 11 or in rosettes.

In a recess 13 of the frame 2, a striking plate designated with the general reference number 12 is accommodated. The striking plate 12 embodying the invention will now be explained in more detail below.

The striking plate 12 consists of an inner part 15 and a tab part 16 which is flush with the outer surface of the frame 2 and which projects over the flap 17 of the door 4. Inner part 15 and flap part 16 are releasably locked together in a manner to be described in more detail.

As can be seen from FIG. 2 in connection with FIG. 3, the inner part is bent from a flat bar in a U-shape, as a result of which it delimits an interior 18 on three sides, which accommodates the functional parts of the quick-release device, which will be described later. At its two ends, the inner part 15 is bent into fastening flanges 19, in which there are countersunk bores for receiving screws 20, with which the inner part 15 let into the fold of the frame 2 is fastened to the frame 2. A bearing block 21 located in the interior 18 is rigidly connected to the inner part 15.

There is a stepped bore in the bearing block 21, in which the correspondingly stepped inner end 22 of an actuating shaft 23 is rotatably mounted. A one-armed rotary latch 24 rigidly attached directly to the inner end 22, in conjunction with the stepped bore in the bearing block 21 and the correspondingly graduated actuating shaft, ensures that the actuating shaft 23 cannot move in the axial direction relative to the bearing block 21 and thus relative to the inner part 15. The actuating shaft 23 extends through a bore 25 made in the frame 2 to the inside of the frame and is rigidly connected at its outer end to a handle-like handle 26. The rotary bolt 24 has a cam-like shape as shown in FIG. 2 and, due to its attachment and mounting, can be rotated in a plane parallel to the flap part 16 by limited angular amounts.

The flap part 16 is a right-angled, flat and flush in the outer surface of the frame 2 recessed steel plate, which in the locked position according to FIGS. The rag Part 16 should be embedded in the frame 2 as seamlessly as possible to make it more difficult to attack any burglary tools. Of course, in order to increase the security of the window frame 2 in this area, it could also be reinforced by a cover made of steel or the like.

On the rear side of the flap part 16, a flat bar, generally designated by the reference number 28, is applied to the front edge 16a of the flap part and is permanently and permanently connected to the flap part 16 at several points 27 (FIG. 3), for example by spot welding or riveting . In the middle, the flat bar 28 has an approximately U-shaped projection 29 which forms the locking opening 30 (FIG. 3) opposite the rotary latch 24 of the inner part 15. The rotary latch 24 located in the locked position engages in the locking opening 30 and lies against the projection 29 from the inside. In order to achieve a tight, possibly slightly resilient contact between the projection 29 and the rotary latch 24, the projection 29 can be pressed in somewhat, as shown in FIG. 3. It can also be seen from this figure that the flat bar 28, with its areas abutting the flap part 16, considerably strengthens the flap part. The latch 7 and the locking bolt 8 of the mortise lock 5 engage in these areas, as can be seen from FIG. 2. The rotary bolt 24 and the locking opening formed by the projection 29 are located in terms of their height between the latch 7 and the locking bolt 8.

For a more detailed explanation of the link arrangement connecting the flap part 16 to the inner part 15, which is not shown in FIGS. 1 to 7 for reasons of clarity, reference is now made in particular to FIGS. 8 to 10. The flat bar 28 attached to the tab portion 16 has top and bottom end bends 31, the mutual distance of which is slightly less than the distance between the opposite walls of the U-shaped region of the inner part 15, so that the end bends 31 can enter the interior space 18 delimited by the inner part, as a result of which the height position of the flap part 16 is opposite the inner part 15 is additionally secured. Since the handlebar arrangement is designed to match the top and bottom, only the handlebar arrangement shown in FIGS. 8 to 10 will be described in more detail below.

An articulated lever 32 is articulated to the end fold 31 by means of a pivot pin 34. Another pivot pin 33 pivotally supports the articulated lever 32 in the vicinity of the mounting flange 19 of the inner part 15. Since the pivot bolts 33 and 34 are arranged vertically, the articulated lever 32 moves in a horizontal direction when the flap part 16 moves relative to the inner part screwed onto the frame 2 Level. As illustrated in FIG. 8, when the striking plate 12 is locked, the pivot pin 34 is a little further away from the tab part 16 than the pivot pin 33. Because of this articulation situation, when the articulated lever 32 is pivoted out, the pivot pin 34 moves on the one shown in FIG. 8 and provided with a directional arrow Circular arc 35. As can be seen, the pivot pin 34 initially moves even slightly to the right before finally moving increasingly to the left. This ensures that the flap part 16 can easily emerge from its position in the frame at the beginning of the pivoting movement. Fig. 9 shows, like Fig. 7, that at the end of the pivoting movement, the flap part 16 is pivoted so far to the left that any engagement with the latch 7 and the pre-closed Lock bolt 8 of the mortise lock 5 is canceled.

To explain the function of the quick release device described so far, reference is now made to FIGS. 1 to 3 and 5. As can be seen from FIG. 1, the handle 26 is in the locked position of the striking plate 12 in a vertical position, from which it can be swiveled out to the right and to the left in the embodiment shown and described. In any case, after only a small swivel angle, the rotary bolt 24 emerges from the locking opening 30 formed by the projection 29, as a result of which the locking is released. This situation is shown in Fig. 5 using the example of a pivoting of the handle to the left (based on the drawing). When the handle 26 is pivoted, the rotary latch 24 is pivoted by means of the actuating shaft 23 and, in the described pivoting direction of the handle 26, assumes the unlocked position shown in FIGS. 2 and 3 with dash-dotted lines. If a force is now exerted on the door 4 in the direction of the arrow 36 (FIG. 5), the door 4 opens in spite of the locking bolt 8 which is fully enclosed in the locking opening 30 of the projection 29, taking the flap part 16 outward. The door briefly covers the intermediate positions shown in FIGS. 6 and 7. The locking bolt 8 and also the latch 7, if it has not been retracted by actuation of the handle, shift the flap part 16, which pivots to the left due to the articulation described on the inner part 15.

In the embodiment variant according to FIGS. 11 and 12, the rotary latch 24 'fastened to the actuating shaft 23' is designed with two arms. His arms 37 and 38 are in the ver locked position aligned vertically and engage with their ends behind on the tab portion 16 'projections 39 and 40. The function of the quick release device equipped in this way corresponds to that described above. 11, the unlocked position of the rotary bolt 24 'is again indicated by dash-dotted lines.

To secure against unintentional rotation of the actuating shaft 23 or 23 ', latching elements can be provided, for example in the arrangement shown in FIG. 13. In this case, a recess 41 is made in the surface of the arm 37 of the rotary latch 24 ′ facing the projection 39, into which a rib 42 or the like attached to the opposite surface of the projection 39 is engaged. This locking can be easily canceled by a slightly increased effort when pivoting the handle 26. Corresponding locking elements 41, 42 can of course also be arranged on the rotary latch 24 or on the projection 29 in the exemplary embodiment described with reference to FIGS. 1 to 7.

Claims (15)

1. Quick release device for a locked door, in particular for an outward opening outer door, the mortise of which engages with a latch and locking bolt in an angled striking plate fastened to the frame, characterized in that the striking plate (12) from a lock face plate (6) opposite in a recess (13) of the frame (2) attached inner part (15) and on the outside of the frame (2) located flap part (16), the latch (7) and locking bolt (8) are present, and that the inner part (15) and the flap part (16) is detachably connected to one another by a lock (24, 30) that can be lifted from the inside of the frame (2). 2. Apparatus according to claim 1, characterized in that on the inner part (15) a rotary latch (24) is rotatably and axially immovably mounted, which is non-positively connected to an actuating shaft (23) extending to the inside of the frame and in the locked position in a Locking opening or the like. (30) of the flap part (16) engages, from which it can be disengaged by rotating the actuating shaft (23) by a small angle of rotation to release the flap part (16). 3. Apparatus according to claim 1 or 2, characterized in that the rotary bolt (24) directly at the inner end (22) of the rotatable and axially immovable on the inner part (15) mounted actuating shaft (23) and in a parallel to the flap part (16) Level is rotatable. 4. Apparatus according to claim 2 or 3, characterized in that a handle (26) is attached to the outer end of the actuating shaft (23) passed through the frame (2). 5. The device according to claim 4, characterized in that the handle (26) has a handle-like shape and in the locked position is oriented substantially perpendicular to the actuating shaft (23). 6. Device according to one of claims 1 to 5, characterized in that the inner part (15) is bent from a flat bar U-shaped and aligned at both ends to each other, parallel to the lock face plate (6) and aligned in the frame (2nd ) mounting flanges (19) is bent, and that in the U interior (18) on the inner part (15) a bearing block (21) for the actuating shaft (23) and the rotary latch (24) attached to it is attached. 7. Device according to one of claims 1 to 6, characterized in that the tab part (16) is essentially a right-angled, flat and flush with the outside surface of the frame (2) is to be let in plate, which in the locked position rests against the inner part (15) and carries on its back a projection (29) which defines the locking bolt (24) opposite the locking bolt (24). 8. Device according to one of claims 1 to 7, characterized in that the locking opening (30) defining projection (29) is bent out approximately U-shaped from a flat bar (28), the rest of the tab part (16) in the region of Engagement of the latch (7) and the locking bolt (8), the tab part (16) reinforcing, rests and is attached to it. 9. Device according to one of claims 1 to 8, characterized in that the rotary bolt (24) and the associated locking opening (30) are in their height between the latch (7) and the locking bolt (8). 10. Device according to one of claims 1 to 9, characterized in that the flap part (16) with the inner part (15) via a link arrangement (32 to 34) is connected, by a pivoting displacement of the flap part (16 ) to the outside with release of the latch (7) and the locking bolt (8). 11. The device according to claim 10, characterized in that the handlebar arrangement consists of two articulated levers (32), the one hand in the vicinity of the mounting flanges (19) on the inner part (15) and on the other hand in each case to an end bend (31) of the locking opening (30) of the flap part (16) forming flat bar (28) are articulated, wherein the articulation points are each formed by vertically arranged pivot bolts (33, 34). 12. Device according to claims 10 and 11, characterized in that the pivot bolts (34) located on the end folds (31) in the locked position of the striking plate parts (15, 16) lie somewhat further from the tab part (16) than the pivot bolts (33 ) on the inner part (15). 13. Device according to one of claims 1 to 12, characterized in that the rotary latch is designed as a two-armed rotary latch (24 '), the arms (37, 38) of which are oriented substantially perpendicularly in the locked position and with their ends behind associated projections (39, 40) of the flap part (16 ') grip. 14. Device according to one of claims 1 to 13, characterized in that the fastening shaft (23) is secured against unintentional rotation by means of a latch (41, 42) which can be canceled by means of the handle (26). 15. The apparatus according to claim 14, characterized in that on the one hand on the rotary latch (24, 24 ') and on the other hand on the or the associated locking surface (s) of the tab part (16, 16') locking elements (41, 42) are attached.

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