EP3243985B1 - Lock for a swivelling wing - Google Patents

Description

The invention relates to a lock for a pivotable wing referred to in the preamble of claim 1. Art.

In the previously known locks, a dumping box is used over a locking element to reduce a preload, which may arise for example by escaping persons on a still locked door, so that the locking element can move easily and without jamming in the wing. This is particularly interesting for panic locks, which always open when manually operated. With an obliquely installed lock or a warped wing, it can quickly lead to jamming of the locking element.

From the DE 102 61 129 A1 is a lock with a lock case, a forend, a arranged in the lock case, spring-loaded latch, an auxiliary latch and a cross latch. The cross latch has an upper latch member disposed above the latch and a lower latch member disposed below the latch. In addition, the lock has a backdrop, a slide provided with detents and an operable via a door handle follower for actuating the lock on. To control the bar exclusion locks engage in the catches. The latch elements are operatively connected to the auxiliary latch so that the bolt exclusion is triggered only when after simultaneous operation of the latch elements and the auxiliary latch the latch elements have reached their swung over the forend from the lock case position, the auxiliary latch remains actuated.

The invention has for its object to provide a lock for a pivoting wing, which allows improved degradation of acting on the wing preload and can be used regardless of the opening direction of the wing.

This object is achieved by the features of the lock for a pivoting wing according to claim 1.

Advantageous embodiments and further developments of the invention are specified in the remaining claims.

The lock according to the invention for a pivotable wing has a first trap device, which is arranged above the latching element and designed as a cross latch, and a second latching device, which is arranged below the latching element and designed as a cross latch. The traps designed as cross-fall devices each comprise a first trapping element and a second trapping element, which are arranged pivotable relative to each other. In addition, the lock according to the invention for a hinged wing a lock case, a forend, an operable via a door handle follower for actuating the lock and the locking element which engages between an extended over the forend protruding locking position, in which the locking element engages in a recess of a striking plate , And a retracted into the lock case release position is movable. The latch devices are movable in each case between a position pivoted out of the lock case via the forend, in which the respective latch device engages in a recess of the striking plate, and a position pivoted into the lock case. In this case, the locking element is movable into the locking position only when the latch devices are in each case in the swung over the forend from the lock case position. The first latch device and the second latch device are locked in the pivoted position respectively by a case lock against movement when the locking element is in the locking position.

Embodiments of the lock according to the invention for a pivotable wing can reduce forces in both directions of actuation advantageously by the two latching devices which are each designed as cross-traps. Due to the preferably symmetrical arrangement, above and below the locking element, the locking element is advantageously relieved in both opening directions by above and below the locking element arranged supporting points of the traps designed as cross-fall devices. The closer the support points of the trap devices are arranged on the locking element, the more difficult it is to block the locking element by a wing deformed under preload. Therefore, the two trap devices are preferably arranged in the immediate vicinity of the locking element, that is, at a small distance from the locking element. This will be an ascent the wing in case of panic advantageously also under a high preload possible.

Embodiments of the lock according to the invention for a pivotable wing are carried out equally stable in an advantageous manner in both opening directions, so that the lock can be used directly without modification for both opening directions.

The trapping elements of the two trap devices designed as crossed traps can be realized, for example, very simply and stably as sheet metal components, which has the advantage of cost and space savings.

In a further advantageous embodiment of the lock according to the invention for a pivotable wing, the first latch elements of the latch devices and the second latch elements of the latch devices can be supported in the swung-out state on opposite inner sides of the recess in the strike plate. Here, the locking element is made narrower than the recess in the strike plate. Preferably, the latch elements and the locking element are arranged so that they fit according to standard in a common recess in the lock plate. Thus, for example, the first latch element of the first latch device can be supported above the latching element on a first inner side of the recess, and the first latching element of the second latching device can be supported below the latching element on the first inner side of the recess. Furthermore, the second latch element of the first latching device may be supported above the latching element on a second inner side of the recess, and the second latching element of the second latching device may be supported below the latching element on the second inner side of the recess.

In a further advantageous embodiment of the lock according to the invention for a pivotable wing, the first latching device and the second latching device can be arranged mirror-symmetrically to a central transverse axis of the locking element. The symmetrical arrangement can be made possible that the locking element is not jammed and the mechanics, which receives the Vorlastkräfte inside the lock case, evenly loaded. To implement the symmetrical arrangement, the first latch element of the first latch device and the first latch element of the second latch device can be arranged mirror-symmetrically to the central transverse axis of the latch element. In addition, the second latch element of the first latch device and the second latch element of the second latch device are also arranged mirror-symmetrically to the central transverse axis of the locking element.

In a further advantageous embodiment of the lock according to the invention for a pivotable wing, the case lock the respective trap device can be performed as guided in the lock box lock slide, which has a recess for each case element of the trap device with a slope at which in the pivoted and locked state, the respective trap element can support a first guide contour. In addition, the respective latch element can have at least one further guide contour with which the respective latch element can be supported on the forend in the pivoted-out and locked state. As a result, the preload force can advantageously be conducted partly into the forend.

Preferably, the guide contours can each have a support region which can extend in the pivoted and locked state substantially parallel to the respective surface on which the respective trap element can be supported. The guide contours, for example, each have a rounding with which the respective latch element can roll on the transition from the pivoted to the pivoted state on the respective support surface. As a result, the force required for the released pivotal movement of the latch elements can be reduced in an advantageous manner.

In a further advantageous embodiment of the lock according to the invention for a pivotable wing, the respective latch element can be supported for example with a second guide contour on an inner surface of a recess in the forend. Additionally or alternatively, the respective catch element can be supported with a third guide contour on a surface of the forend facing the lock case. Due to the guide contours and support surface, which may have predetermined angles to the effective preload force, the preload force can be advantageously distributed in different power levels, so that relatively high preload forces can be reduced.

Embodiments of the invention will be explained in more detail with reference to drawings.

Fig. 1

eine perspektivische Schrägansicht eines Ausführungsbeispiels eines erfindungsgemäßen Schlosses für einen schwenkbaren Flügel,

Fig. 2

eine Vorderansicht des erfindungsgemäßen Schlosses für einen schwenkbaren Flügel aus Fig. 1,

Fig. 3

eine schematische Schnittdarstellung eines ersten Zustandes des erfindungsgemäßen Schlosses für einen schwenkbaren Flügel entlang der Schnittlinie III-III in Fig. 2,

Fig. 4

eine schematische Schnittdarstellung eines zweiten Zustandes des erfindungsgemäßen Schlosses für einen schwenkbaren Flügel entlang der Schnittlinie III-III in Fig. 2, und

Fig. 5

eine schematische Schnittdarstellung eines dritten Zustandes des erfindungsgemäßen Schlosses für einen schwenkbaren Flügel entlang der Schnittlinie III-III in Fig. 2.

Showing:

Fig. 1

3 is an oblique perspective view of an embodiment of a lock according to the invention for a pivotable wing,

Fig. 2

a front view of the lock according to the invention for a pivotable wing Fig. 1 .

Fig. 3

a schematic sectional view of a first state of the lock according to the invention for a pivotable wing along the section line III-III in Fig. 2 .

Fig. 4

a schematic sectional view of a second state of the lock according to the invention for a pivotable wing along the section line III-III in Fig. 2 , and

Fig. 5

a schematic sectional view of a third state of the lock according to the invention for a pivotable wing along the section line III-III in Fig. 2 ,

How out Fig. 1 to 5 it can be seen, comprises a lock 1 for a hinged wing a lock case 3, a faceplate 5 for mounting the lock 1 in a lock pocket of a wing not shown here, an operable via a door handle, not shown, presser 9 for actuating the lock 1 and a locking element 7, which extends between an extended over the forend 5 in Fig. 1 to 3 shown locking position and one in the lock case 3 retracted in 4 and 5 shown release position is movable. Above the locking element 7 is a first latch device 10A, and below the locking element 7, a second latch device 10B is arranged, which in each case between a swung over the forend 7 from the lock case 3, in Fig. 1 to 3 shown position and a pivoted into the lock case 3, in Fig. 5 shown position are movable. The lock 1 is known to interact with a arranged in a frame not shown closing plate, which has at least one recess 20. In this case, the locking element 7 engage in its extended locking position and the respective latch device 10A, 10B in its swung-out position in the recess 20 of the striking plate. In the Fig. 2 As a dashed line sketched recess 20 of the closing plate, not shown, shows an optimal centering of the locking element 7, wherein the locking element 7 is arranged substantially mirror-symmetrical to a central vertical axis HA of the recess20 is. The locking element 7 can only be moved into the locking position when the latch devices 10A, 10B are each in the position swung out of the lock case 3 via the forend 5. In addition, the first latch device 10A and the second latch device 10B are locked in the pivoted position respectively by a latch 16 against movement when the locking member 7 is in the locking position. According to the invention, the first latch device 10A and the second latch device 10B are each designed as a cross latch comprising a first latch element 12 and a second latch element 14. The first latch element 12 and the second latch element are arranged pivotably relative to one another.

In addition, in the illustrated embodiment, an auxiliary latch 11 is provided, which enables release of the two latch devices 10A, 10B only when the wing is closed and the auxiliary latch 11 in the in Fig. 1 and 2 shown retracted position.

How out Fig. 1 to 5 is further shown, the latch elements 12, 14 are wedge-shaped and have at the protruding in the pivoted position from the lock case 3 areas each have a stop surface 12.1, 14.1, which parallel to the lateral edges of the forend 5 and pointing away from the lock case 3 surface of the Stulps 5 are perpendicular, and a one-sided inclined surface 12.2, 14.2, which point to the center of the forend 5. As in particular from Fig. 2 It can also be seen that the first trapping elements 12 of the trapping devices 10A, 10B and the second trapping elements 14 of the trapping devices 10A, 10B rest on the opposite surfaces of the recess 20 in the strike plate in the swung-out state, the locking element 7 being narrower than the stop elements 12.1, 14.1 the recess 20 is executed in the strike plate. In the illustrated embodiment, the trapping elements 12, 14 of the two trap devices 10A, 10B and the locking element 7 are arranged so that they fit according to standard in the common recess 20 in the lock plate. In the illustration, the first latch elements 12 are supported by the respective stop surface 12.1 on a left inner side of the recess 20, and the second latch elements 14 are supported by the respective stop surface 14.1 on a right inner side of the recess 20. This means that the first latch element 12 of the first latch device 10A is supported in the illustrated embodiment above the locking element 1 on a first, here the left inner side of the recess 20. The first trap element 12 of the second trap device 10B is supported below the Locking element 7 on the first, here left inside of the recess 20 from. Furthermore, the second latch element 14 of the first latch device 10A is supported above the latching element 7 on a second, here right inner side of the recess 20, and the second latch element 14 of the second latching device 10B rests below the latching element 7 on the second, here right inner side the recess 20 from. By means of this arrangement, the two traps 10A, 10B, which are each designed as cross-traps, can advantageously reduce preload forces in both opening directions by means of support points arranged above and below the locking element 7, so that the locking element 7 remains centered in the recess 20 of the strike plate even with acting preload forces a safe movement of the locking element 7 is possible in case of panic. The closer the support points of the latch devices 10A, 10B are arranged on the locking element 7, the less likely it is that a wing deformed under preload can block the locking element 7. Therefore, the two trap devices 10A, 10B are arranged in the illustrated embodiment in the immediate vicinity of the locking element 7.

As in particular from Fig. 1 and 2 1, the first latch device 10A and the second latch device 10B are arranged mirror-symmetrically to a central transverse axis QA of the latching element 7. This means that the two trap devices 10A, 10B each have the same distance to the locking element 7. How out Fig. 1 and 2 It can also be seen that the first trapping element 12 of the first trapping device 10A and the first trapping element 12 of the second trapping device 10B are arranged mirror-symmetrically to the central transverse axis QA of the locking element 7. In addition, the second trapping element 14 of the first trapping device 10A and the second trapping element 14 of the second trapping device 10B are also arranged mirror-symmetrically to the central transverse axis QA of the locking element 7.

How out Fig. 3 to 5 It can also be seen that the latch 16 of the first latch device 10A is designed as a latch slide guided in the latch box 3, which has a recess with a bevel 16.1 for each latch element 12, 14, on which the respective latch element 12, 14 engages in the swung-out and locked state a first guide contour supported. How on Fig. 3 to 5 It can also be seen that the respective latch element 12, 14 has at least one further guide contour with which the respective latch element 12, 14 is supported on the forend 5 in the swung-out and locked state. In the illustrated embodiment, the guide contours each have a support area, which in the swung-out and locked state in Is substantially parallel to the respective surface, on which the respective trap element 12, 14 is supported. In addition, the guide contours each have a rounding R1, R2, R3 with which the respective latch element 12, 14 unrolls during the transition from the pivoted to the pivoted state on the respective support surface.

Fig. 3 shows the lock 1 in the locked state in which the locking member 7 is extended to the locking position and the latch members 12, 14 of the two latch devices 10A, 10B are respectively in the pivoted position. How out Fig. 3 It can also be seen that the respective latch element 12, 14 is supported in the pivoted-out position with a second guide contour on an inner surface of a recess in the forend 5 and with a third guide contour on a surface of the forend 5 facing the lock case 3. Since the locking element 7 in the illustration according to Fig. 3 is in the locking position, the first latch device 10A and the second latch device 10B are locked in the pivoted position by the latch 16 against movement. Thereby, the preload force F _VL , which acts in the illustrated embodiment on a stop surface 14.1 of the second latch member 14, compensated by a plurality of acting support forces F1, F2, F3. As a result of this embodiment of the respective latch element 12, 14, the preload force F _{VL is} partially guided into the forend 5 and partially compensated by the support forces F2 and F3. In addition, a part of the preload force F _VL is compensated by the slope 16.1 in the case lock 16 by a support force F1 applied by the mechanism. The statements apply analogously if the preload force F _VL would act on the stop surface 12. 1 of the first latch element 12.

Fig. 4 shows the lock 1 in the unlocked state during the transition of the trapping elements 12, 14 of the two trap devices 10A, 10B from the pivoted position to the pivoted position, which in Fig. 5 is shown. Since the locking element 7 is retracted into the lock case 3, the latch 16 releases movement of the latch members 12, 14. As can be seen from the intermediate position of the latch elements 12, 14 of the two latch devices 10A, 10B, the second latch element 14 rolls on the respective support surfaces during the pivoting movement over the rounded sections R1, R2, R3 of the guide contours until the inclined surface 14.2 of the second latch element 14 5 abuts on an inner side of the recess in the forend 5 and the stop surface 14.1 of the second latch element 14 extends parallel to the inclined surface 12.2 of the first latch element 12. For a further acting actuating force in the opening direction the two trap elements 12, 14 are further retracted together in the lock case 3, as from Fig. 5 is apparent.

Since the second latch device 10B is arranged mirror-symmetrically with respect to the first latch device, the above statements also apply analogously to the second latch device 10B.

Embodiments of the present invention provide a lock for a pivotable wing, which advantageously can be used directly without conversion for both opening directions. In addition, embodiments of the lock according to the invention by the symmetrical arrangement of the traps designed as a cross trap allow that the locking element not jammed and the mechanism which receives the preload forces inside is evenly loaded and the preload forces can be passed in part in the forend.

LIST OF REFERENCE NUMBERS

1

lock

3

lock case

5

stulp

7

locking element

9

follower

10A, 10B

trap device

11

auxiliary latch

12

first trap element

12.1

stop surface

12.2

sloping surface

14

second trap element

14.1

stop surface

14.2

sloping surface

16

case lock

16.1

slope

20

Recess of the striking plate

R1, R2, R3

curve

F _VL

preload

F1, F2, F3

supporting force

QA, HA

axis

Claims (10)

1. Lock (1) for a swivelling wing, with a lock case (3), a lock case front (5), a handle follower (9), which is actuable via a door handle, for actuating the lock (1), and a locking element (7) which is movable between an extended locking position which protrudes over the lock case front (5) and in which the locking element (7) engages in a recess (20) in a strike plate, and a release position which is retracted into the lock case (3), wherein a first latch device (10A) is arranged above the locking element (7) and a second latch device (10B) is arranged below the locking element (7), said latch devices each being movable between a position which is swivelled out of the lock case (3) over the lock case front (5) and in which the respective latch device (10A, 10B) engages in a recess (20) in the strike plate, and a position swivelled into the lock case (3), wherein the locking element (7) is only movable into the locking position whenever the latch devices (10A, 10B) are each in the position swivelled out of the lock case (3) over the lock case front (5), and wherein the first latch device (10A) and the second latch device (10B) are blocked in the swivelled-out position by a latch catch (16) against a movement when the locking element (7) is in the locking position, characterized in that the first latch device (10A) and the second latch device (10B) are each designed as a cross latch comprising a first latch element (12) and a second latch element (14) which are arranged in a swivelling manner in relation to each other.
2. Lock according to Claim 1, characterized in that the first latch elements (12) of the latch devices (10A, 10B) and the second latch elements (14) of the latch devices (10A, 10B) are supported on opposite inner sides of the recess (20) in the strike plate in the swivelled-out state, wherein the locking element (7) is designed narrower than the recess (20) in the strike plate.
3. Lock according to Claim 1 or 2, characterized in that the first latch device (10A) and the second latch device (10B) are arranged mirror-symmetrically with respect to a centre transverse axis (QA) of the locking element (7).
4. Lock according to Claim 3, characterized in that the first latch element (12) of the first latch device (10A) and the first latch element (12) of the second latch device (10B) are arranged mirror-symmetrically with respect to the centre transverse axis (QA) of the locking element (7), wherein the second latch element (14) of the first latch device (10A) and the second latch element (14) of the second latch device (10B) are likewise arranged mirror-symmetrically with respect to the centre transverse axis (QA) of the locking element (7).
5. Lock according to one of Claims 1 to 4, characterized in that the latch catch (16) is designed as a locking slide which is guided in the lock case (3) and, for each latch element (12, 14), has a recess with a slope (16.1) on which the respective latch element (12, 14) is supported by a first guide contour in the swivelled out and blocked state.
6. Lock according to Claim 5, characterized in that the respective latch element (12, 14) has at least one further guide contour with which the respective latch element (12, 14) is supported on the lock case front (5) in the swivelled out and blocked state.
7. Lock according to Claim 6, characterized in that the guide contours each have a supporting region which, in the swivelled out and blocked state, run substantially parallel to the respective surface on which the respective latch element (12, 14) is supported.
8. Lock according to Claim 6 or 7, characterized in that the guide contours each have a rounding (R1, R2, R3) with which the respective latch element (12, 14) rolls on the respective supporting surface during the transition from the swivelled out into the swivelled in state.
9. Lock according to one of Claims 6 to 8, characterized in that the respective latch element (12, 14) is supported by a second guide contour (R2) on an inner surface of a recess in the lock case front (5).
10. Lock according to one of Claims 6 to 9, characterized in that the respective latch element (12, 14) is supported with a third guide contour (R3) on a surface of the lock case front (5) that faces the lock case (3).

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