DK3243985T3

DK3243985T3 - LOCK TO A SWINGABLE DOOR WING

Info

Publication number: DK3243985T3
Application number: DK17169780.8T
Authority: DK
Inventors: Stephan Schunn
Original assignee: Geze Gmbh
Priority date: 2016-05-09
Filing date: 2017-05-05
Publication date: 2019-03-25
Also published as: PL3243985T3; ES2712928T3; DE102016207938A1; EP3243985B1; CN107355134B; EP3243985A1; CN107355134A

Description

LOCK FOR A SWIVELLING WING

The invention relates to a lock for a swivelling wing of the type disclosed in the preamble of claim 1.

With the locks known to date, a tilt latch is used via a locking element in order to release a preload, which can occur on a still locked door, for example, due to fleeing persons, so that the locking element can be moved easily and without getting stuck in the wing. This is of particular interest for panic locks, which always open upon manual actuation. With a transversely mounted lock ora buckled wing, the locking element can become jammed more quickly.

From DE 102 61 129 A1 is known a lock with a lock case, a lock case front, a springloaded bolt arranged in the lock case, an auxiliary latch and a cross latch. The cross latch has an upper latch element which is arranged above the bolt, and a lower latch element which is arranged below the bolt. In addition, the lock has a crank, a slider furnished with notches and a handle follower that is actuated via a door handle for actuating the lock. To control the bolt throw, bars engage in the notches. The latch elements are operatively connected with the auxiliary latch such that the bolt throw is then only induced if, following simultaneous actuation of the latch elements and the auxiliary latch, the latch elements are entered into their position swivelled out from the lock case over the lock case front, wherein the auxiliary latch remains actuated.

The object of the invention is to disclose a lock for a swivelling wing which facilitates an improved relief of a preload acting on the wing and can be used irrespective of the opening direction of the wing.

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

Advantageous embodiments and further developments of the invention are disclosed in the other claims.

The lock for a swivelling wing according to the invention has a first latch device designed as a cross latch and arranged above the locking element and a second locking element designed as a cross latch and arranged below the locking element. The latch devices designed as cross latches each comprise a first latch element and a second latch element which are arranged in a swivelling manner in relation to each other. In addition, the lock for a swivelling wing according to the invention has a lock case, a lock case front, a handle follower that can be actuated via the door handle for actuating the lock and the locking element, which is movable between an extended locking position which protrudes over the lock case front and in which the locking element engages in a recess in a strike plate, and a release position which is retracted into the lock case. The latch devices are each movable between a position which is swivelled out of the lock case over the lock case front and in which the respective latch device engages in a recess in the strike plate, and a position swivelled into the lock case. In this connection, the locking element is only then movable into the locking position when the latch devices are each in the position swivelled out of the lock case over the lock case front. The first latch device and the second latch device are each blocked against a movement in the swivelled out position by means of a latch catch if the locking element is located in the locking position.

Embodiments of the lock for a swivelling wing according to the invention can advantageously relieve forces in both actuation directions through the two latch devices each designed as cross latches. Through the preferably symmetrical arrangement above and below the locking element, the locking element is advantageously released in both opening directions by support points arranged above and below the locking elements of the latch devices arranged as cross latches. The closer the support points of the latch devices are arranged on the locking element, the more difficult it is to block the locking element by a wing deformed due to preload. For this reason, the two latch devices are preferably arranged in immediate proximity of the locking element, i.e., with a short distance to the locking element. As a result, an access of the wing in case of panic is also advantageously facilitated under the highest possible preload.

Embodiments of the lock for a swivelling wing according to the invention are advantageously designed to be equally stable in both opening directions, such that the lock can be used directly without any alteration for both opening directions.

The latch elements of the two latch devices designed as cross latches can be realised very easily and stably, for example, as sheet metal parts, which is advantageous in terms of costs and space saving.

In a further advantageous embodiment of the lock for a swivelling wing according to the invention, the first latch elements of the latch devices and the second latch elements of the latch devices are supported in the swivelled out state on opposite inner sides of the recess in the strike plate. In doing so, the locking element is designed to be narrower than the recess in the strike plate. Preferably, the latch elements and the locking element are arranged such that they fit into a joint recess in the plate as a standard. In this way, for example, the first latch element of the first latch device can be supported above the locking element on a first inner side of the recess and the first latch element of the second latch device can be supported beneath the locking element on a first inner side of the recess. Furthermore, the second latch element of the first latch device can be supported above the locking element on a second inner side of the recess and the second latch element of the second latch device can be supported beneath the locking element on a second inner side of the recess.

In a further advantageous embodiment of the lock for a swivelling wing according to the invention, the first latch device and the second latch device can be arranged mirror-symmetrically with respect to a centre transverse axis of the locking element. Through the symmetrical arrangement, it can be facilitated that the locking element does not jam and the mechanism, which absorbs the preload forces on the inside of the lock case, is 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 centre transverse axis of the locking element. In addition, the second latch element of the first latch device and the second latch element of the second latch device can also be arranged mirror-symmetrically to the centre transverse axis of the locking element.

In a further advantageous embodiment of the lock for a swivelling wing according to the invention, the latch catch of the respective latch device can be designed as a locking slide guided into the lock case, said locking slide having for each latch element of the latch device a recess with a slope, to which the respective latch element with a first guide contour can be supported in the swivelled out and blocked state. In addition, the respective latch element can have at least one further guide contour, with which the respective latch element can be supported in the swivelled out and blocked state on the lock case front. As a result, the preload force can advantageously be guided in part into the lock case front.

Advantageously, the guide contours can each have a supporting region, which can run in the swivelled out and blocked state substantially parallel to the respective surface on which the respective latch element can be supported. The guide contours can, for example, each have a rounding, with which the respective latch element can roll onto the respective supporting surface during the transition from swivelled out to swivelled in state. As a result, the exertion for the released swivel movement of the latch elements can be advantageously reduced.

In a further advantageous embodiment of the lock for a swivelling wing according to the invention, the respective latch element can be supported, for example, with a second guide contour on the inner surface of a recess in the lock case front. Additionally or alternatively, the respective latch element can be supported with a third guide contour on a surface of the lock case front that faces the lock case. Through the guide contours and supporting surface, which can have predefined angles for effective preload force, the preload force can be advantageously divided into different force relief stages, such that relatively high preload forces can be relieved.

Exemplary embodiments of the invention are explained in more detail below with reference to drawings.

Thus:

Fig. 1 shows a perspective oblique view of an exemplary embodiment of a lock for a swivelling wing according to the invention,

Fig. 2 shows a front view of the lock for a swivelling wing according to the invention from Fig. 1,

Fig. 3 shows a schematic sectional view of a first state of the lock for a swivelling wing according to the invention along the intersection line Ill-Ill in Fig. 2,

Fig. 4 shows a schematic sectional view of a second state of the lock for a swivelling wing according to the invention along the intersection line Ill-Ill in Fig. 2, and

Fig. 5 shows a schematic sectional view of a third state of the lock for a swivelling wing according to the invention along the intersection line Ill-Ill in Fig. 2.

As can be seen from Figs. 1 through 5, a lock 1 for a swivelling wing comprises a lock case 3, a lock case front 5 for mounting the lock 1 in a lock mortise of a wing that is not further shown here, a handle follower 9 that can be actuated by a door handle for actuating the lock 1 (not shown), and a locking element 7 which is movable between an extended locking position shown in Fig. 1 to 3 which protrudes over the lock case front 5 and a release position shown in Figs. 4 and 5 which is retracted into the lock case 3. Above the locking element 7, a first latch device 10A is arranged, and below the locking element 7 a second latch device 10B is arranged, which are each movable between a position, shown in Figs. 1 through 3, which is swivelled out of the lock case 3 over the lock case front 7 and a position, shown in Fig. 5, swivelled into the lock case 3. As is known, the lock 1 works together with a strike plate arranged in a frame which is not shown in more detail, said strike plate having at least one recess 20. In this connection, the locking element 7 in its extended locking position and the respective latch device 10A, 10B in its swivelled out position engage into the recess 20 of the strike plate. The recess 20 shown as a dashed line in Fig. 2 of the strike plate (not further shown) shows an optimal centring of the locking element 7 with which the locking element 7 is substantially arranged mirror-symmetrically to a centre vertical axis HA of the recess 20. The locking element 7 is only then movable into the locking position when the latch devices 10A, 10B are each in the position swivelled out of the lock case 3 over the lock case front 5. In addition, the first latch device 10A and the second latch device 10B are each blocked against a movement in the swivelled out position by means of a latch catch 16 if the locking element 7 is located in the locking position. According to the invention, the first latch device 10A and the second latch device 10B are each designed as cross latches which comprise a first latch element 12 and a second latch element 14. The first latch element 12 and the second latch element are arranged to be pivotable towards one another.

In addition, in the depicted exemplary embodiment, an auxiliary latch 11 is provided which only facilitates a release of the two latch devices 10A, 10B if the wing is closed and the auxiliary latch 11 is in the retracted position shown in Figs. 1 and 2.

As is further visible from Figs. 1 through 5, the latch elements 12, 14 are designed to be wedge-shaped and each have on the areas protruding from the lock case 3 in the swivelled out position a stop surface 12.1, 14.1, which runs parallel to the lateral edges of the lock case front 5 and runs vertically to the surface of the lock case front 5 leading away from the lock case 3, and a one-sided inclined surface 12.2, 14.2, which leads to the middle of the lock case front 5. As is particularly further visible from Fig. 2, 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 in the swivelled out state with the stop surfaces 12.1, 14.1 on opposite inner sides of the recess 20 in the strike plate, wherein the locking element 7 is designed to be narrower than the recess 20 in the strike plate. In the depicted exemplary embodiment, the latch elements 12, 14 of the two latch devices 10A, 10B and the locking element 7 are arranged such that they fit into a joint recess 20 in the plate as a standard. In the drawing, the first latch elements 12 are supported with the respective stop surface 12.1 on a left inner side of the recess 20, and the second latch elements 14 are supported with 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 in the depicted exemplary embodiment is supported above the locking element 1 on a first, in this case the left, inner side of the recess 20. The first latch element 12 of the second latch device 10B is supported below the locking element 7 on the first, in this case the left, inner side of the recess 20. Furthermore, the second latch element 14 of the first latch device 10A is supported above the locking element 7 on a second, in this case right, inner side of the recess 20, and the second latch element 14 of the second latch device 10B is supported beneath the locking element 7 on the second, in this case right, inner side of the recess 20. Through this arrangement, the two latch devices 10A, 10B, each being designed as a cross latch, can relieve preload forces advantageously in both opening directions by means of support points arranged above and below the locking element 7, such that the locking element 7 also remains centred in the case of preload forces acting in the recess 20 of the strike plate, and a secure movement of the locking element 7 is facilitated in case of panic. The closer the support points of the latch devices 10A, 10B are arranged on the locking element 7, the more improbable it is that a wing being deformed due to preload can block the locking element 7. For this reason, the two latch device 10A, 10B in the depicted exemplary embodiment are arranged in direct proximity to the locking element 7.

As is further particularly visible from Figs. 1 and 2, 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. This means that the two latch devices 10A, 10B each have the same distance to the locking element 7. As is further visible from Figs. 1 and 2, 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 to the centre transverse axis QA of the locking element 7. In addition, the second latch element 14 of the first latch device 10A and the second latch element 14 of the second latch device 10B are also arranged mirror-symmetrically to the centre transverse axis QA of the locking element 7.

As is further visible from Figs. 3 through 5, the latch catch 16 of the first latch device 10A is designed as a locking slide guided into the lock case 3, said locking slide having for each latch element 12, 14 a recess with a slope 16.1, to which the respective latch element 12, 14 with a first guide contour is supported in the swivelled out and blocked state. As is further visible from Figs. 3 through 5, the respective latch element 12, 14 has at least one further guide contour, with which the respective latch element 12, 14 is supported in the swivelled out and blocked state on the lock case front 5. In the depicted exemplary embodiment, the guide contours each have a supporting region, which runs in the swivelled out and blocked state substantially parallel to the respective surface, on which the respective latch 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 rolls onto the respective supporting surface during the transition from swivelled out to swivelled in state.

Fig. 3 shows the lock 1 in the locked state, in which the locking element 7 is extended into the locking position and the latch elements 12, 14 of the two latch devices 10A, 10B are each in the swivelled out position. As is further visible from Fig. 3, the respective latch element 12, 14 is supported in the depicted swivelled out position with a second guide contour on an inner surface of a recess in the lock case front 5 and with a third guide contour on a surface of the lock case front 5 facing the lock case 3. As the locking element 7 in the drawing according to Fig. 3 is in the locking position, the first latch device 10A and the second latch device 10B are each blocked against a movement in the swivelled out position by means of a latch catch 16. As a result, the preload force Fvl, which acts in the depicted exemplary embodiment on a stop surface 14.1 of the second latch element 14, is compensated by a number of acting supporting forces F1, F2, F3. Through this embodiment of the respective latch element 12, 14, the preload force Fvl is partially guided into the lock case front 5 and partially compensated by the supporting forces F2 and F3. In addition, through the slope 16.1 in the latch catch 16, a part of the preload force Fvl is compensated by a supporting force F1 applied by the mechanism. The embodiments apply similarly if the preload force Fvl were to 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 latch elements 12, 14 of the two latch devices 10A, 10B from the swivelled out position into the swivelled in position which is shown in Fig. 5. As the locking element 7 is retracted into the lock case 3, the latch catch 16 releases a movement of the latch element 12, 14. As is visible from the interim position of the latch elements 12, 14 of the two latch device 10A, 10B, the second latch element 14 rolls over the roundings R1, R2, R3 of the guide contours to the respective supporting surface during the pivoting movement until the inclined surface 14.2 of the second latch element 14 abuts an inner side of the recess in the lock case front 5 and the stop surface 14.1 of the second latch element 14 runs parallel to the inclined surface 12.2 of the first latch element 12. With a further acting actuating force in the opening direction, the two latch elements 12, 14 are retracted together further into the lock case 3, as is visible from Fig. 5.

As the second latch device 10B is arranged mirror-symmetrically to the first latch device, the above embodiments apply similarly for the second latch device 10B.

Embodiments of the present invention provide a lock for a swivelling wing which can advantageously be used directly without any alteration for both opening directions. In addition, due to the symmetrical arrangement of the latch devices designed as cross latches, exemplary embodiments of the lock according to the invention can facilitate that the locking element does not jam and the mechanism which absorbs the preload forces on the inside is evenly loaded, and the preload forces can be partially guided into the lock case front.

List of reference symbols I Lock 3 Lock case 5 Lock case front 7 Locking element 9 Handle follower 10A, 10B Latch device II Auxiliary latch 12 First latch element 12.1 Stop surface 12.2 Inclined surface 14 Second latch element 14.1 Stop surface 14.2 Inclined surface 16 Latch catch 16.1 Slope 20 Recess of the strike plate R1, R2, R3 Rounding

Fvl Preload force F1, F2, F3 Supporting force QA, HA Centre transverse axis, centre vertical axis

Claims

LOCK TO A SWINGABLE DOOR WING

1. A lockable door wing (1), with a locking box (3), a locking post (5), a handle carrier (9) operable via a door handle, for operating the lock (1) and a locking element (7) which can be moved between an extended locking position extending beyond the locking post (5) and in which the locking element (7) engages in a recess (20) in a final view, and a release position inserted in the locking box (3), wherein a first drop device (10A) is placed above the locking member (7) and a further drop device (10B) is arranged below the locking member (10B), each of which can be moved between a position pivoted beyond the locking post (5) from the locking box (3), in which the respective fall device (10A, 10B) engages in a recess (20) in the final look and a position pivoted into the lock box (3), in which the locking element (7) can only be moved in in the locking position when the fall devices (10A, 10B) are each in the position that is swung beyond the locking post (5) from the locking box (3), wherein the first drop device (1 OA) and the additional drop device (1 OB) in the pivoted position by a drop lock (16) are locked relative to a movement when the locking element ( 7) is in the locking position, characterized in that the first drop device (10A) and the additional drop device (10B) are each designed as a cross trap comprising a first drop element (12) and a further drop element (14) which is placed pivotally in relation to each other.

Lock according to claim 1, characterized in that the first falling elements (12) of the falling devices (1 OA, 10B) and the additional falling elements (14) of the falling devices (1 OA, 10B) in the pivoted state are supported on opposite sides. the inside of the recess (20) in the final view, the locking element (7) being made narrower than the recess (20) in the final view.

Lock according to claim 1 or 2, characterized in that the first drop device (1 OA) and the additional drop device (1 OB) are arranged mirror-symmetrically with respect to a central cross axis (QA) of the locking element (7).

Lock according to claim 3, characterized in that the first drop element (12) in the first drop device (10A) and the first drop element (12) in the additional drop device (10B) are arranged mirror-symmetrically with respect to the center cross axis (QA) of the locking element (7), the further falling element (14) of the first fall device (10A) and the further falling element (14) of the further falling device (10B) also being arranged mirror-symmetrically with respect to the center cross axis (QA) of the locking element (7) .

Lock according to one of claims 1 to 4, characterized in that the latch (16) is designed as a latch slider which is inserted in the latch (3) and which for each latch element (12, 14) has a recess with a phase. (16.1), on which the respective fall element (12, 14) in the pivoted and locked condition is supported by a first guide contour.

Lock according to claim 5, characterized in that the respective fall element (12, 14) has at least one further guide contour with which the respective fall element (12, 14) is supported in the pivoted and locked condition on the locking post (5).

Lock according to claim 6, characterized in that the guide contours each have a support area which, in the pivoted and locked state, extends substantially parallel to the respective surface on which the respective fall element (12, 14) is supported.

Lock according to claim 6 or 7, characterized in that the guide contours each have a rounding (R1, R2, R3), with which the respective fall element (12, 14) rolls on the respective support surface at the transition from the swing to the swing state.

Lock according to one of claims 6 to 8, characterized in that the respective drop element (12, 14) with an additional guide contour (R2) is supported on an inner surface by a recess in the locking post (5).

Lock according to one of claims 6 to 9, characterized in that the respective fall element (12, 14) with a third guide contour (R3) is supported on a surface of the locking post (5) which faces the locking box (3).