Locking lever device

Abstract

This invention relates to a locking lever device, particularly a plastic locking lever device, for locking a door leaf (101) to a door frame (102) using at least one lever (2), the at least one lever being arranged on the side of the door leaf, the lever being movable between a locked position (V) and an open position (O), in the locked position being locked at a lock frame (4), the lock frame (4) being arranged on the side of the door frame, and in the open position being released from the lock frame (4). The movement of the lever (2) is guided by a lever guide (5), the lever guide being arranged on the side of the door leaf, the lock frame (4) and the lever guide (5) having an alignment device (6) comprising two alignment ramps (7, 8) for aligning the closed door leaf (101) relative to the door frame (102). Either of the centering bevels can be used for a door (100) installed on the left, and the other of the centering bevels can be used for a door (100) installed on the right.

Description

[0001] This invention relates to a lever lock, particularly a plastic lever lock, for locking a door leaf to a door frame using at least one lever, said at least one lever being arranged on the side of the door leaf and movable between a locked position and an open position, wherein in the locked position the lever is locked to a lock frame, which is arranged on the side of the door frame; and in the open position the lever is released from the lock frame, the movement of the lever being guided by a lever guide, which is arranged on the side of the door leaf.

[0002] This type of lever lock is used in many technical fields, especially in industrial applications.

[0003] A lever lock is used to lock a door in its closed position. In the closed position, the door leaf, movably connected to the door frame by several hinges, is locked against the door frame, such that the door leaf can only be opened after the lock is released. The term "door leaf" should be understood to refer to all types of closing elements, including baffles, hatches, windows, or other closing elements. The term "door frame" should be understood to refer to all types of corresponding components that close the door opening.

[0004] A lever lock has at least one axially movable lever that can move between a locked position and an open position. This lever is typically mounted on the door leaf and interacts with a lock frame mounted on the door frame in a locking manner. In its locked position, the lever engages behind the locking structure of the lock frame. In the open position, the lever can be released from the lock frame. Lever locks also typically have a lever guide mounted on the door, through which the axial movement of the lever is guided.

[0005] It is well known that for many types of doors, especially heavy-duty doors that are frequently opened and closed, the door leaf tends to sag over time on the side opposite the hinge due to gravity and wear. This is usually not a problem for the door's function, but the sagging often results in an unsightly, uneven appearance when the door is closed. Therefore, in practice, it is necessary to periodically adjust the door leaf relative to the door frame to compensate for the sagging that occurs over time. For this purpose, mechanically complex adjustment mechanisms are usually provided, which must be manually readjusted.

[0006] For other types of doors, a less complex alternative is to install centering mechanisms on the door frame and door leaf. These mechanisms automatically center the door leaf when the door is closed, aligning it with the frame. This type of centering mechanism eliminates the need for manual adjustments to compensate for door sagging and avoids complex adjustment mechanisms. However, this centering mechanism has proven disadvantageous when the door leaf is used for both left-hinged and right-hinged doors. In such cases, it is typically necessary to disassemble the centering mechanism, reposition it according to the respective hinge configurations, and then reinstall it accordingly, involving a considerable amount of assembly work.

[0007] In this context, the object of the present invention is to provide a lever lock that allows for door sagging to be compensated in a simple and easy-to-install manner.

[0008] This objective is achieved in the above-described type of lever lock, wherein the lock frame and lever guide have a centering device having two centering bevels for aligning the closed door leaf relative to the door frame, one of the two centering bevels being optionally used for a door hinged on the left and the other of the two centering bevels being optionally used for a door hinged on the right.

[0009] In this respect, the lock frame and rod guide have a dual function. These two elements serve not only to lock or guide the rod of the lock, but also to align the closed door leaf with the door frame. Door sag can be compensated for by the centering device. Due to the two centering bevels, it is not necessary to reposition the centering device when changing the door leaf from a door hinged on the left to one hinged on the right, and vice versa. Alternatively, one of the two centering bevels can be used for the corresponding hinge case. The other remains unused. This makes it easy to install door sag compensation via the lock frame and rod guide.

[0010] In an advantageous embodiment, the centering device has at least one protrusion and one recess, with a centering ramp disposed on the protrusion and the recess. When the door is closed, the protrusion and the recess can interact and achieve the desired centering through the centering ramp.

[0011] In this context, another structurally advantageous embodiment proposes that the protrusion and / or the recess have a trapezoidal shape, particularly an isosceles trapezoid, and that the centering slope is formed by the waist of the trapezoid. Guided by the centering slope, the trapezoidal protrusion can be easily inserted into the trapezoidal recess, which acts as a funnel. This results in reliable centering, less prone to error.

[0012] Another advantageous embodiment is that the protrusion is provided on the lock frame and / or the recess is provided on the rod guide.

[0013] According to this embodiment, the design in which the protrusion and / or recess are integrally formed on the lock frame and / or rod guide is advantageous in terms of design. This minimizes assembly work because it eliminates the need to set the protrusion and / or recess in a separate assembly step.

[0014] Another advantageous embodiment is that each of the centering ramps has at least two, preferably four, centering surfaces for guiding the relative movement of the rod guide relative to the lock frame when the door is closed. The relative movement during closing can be guided by the centering surfaces. At least two interacting centering surfaces also result in advantageous, large-area force transmission, thus relatively low wear. With four centering surfaces, wear can be further reduced. Furthermore, the four centering surfaces can be symmetrically arranged on both sides of the rod. This also results in advantageous, symmetrical force introduction.

[0015] A further embodiment in this context is that at least one, preferably two, centering surfaces are provided on the lock frame and / or at least one, preferably two, centering surfaces are provided on the rod guide. The opposing centering surfaces on the lock frame and rod guide allow for defined relative movement while advantageously applying force.

[0016] Another advantageous embodiment has a central region for receiving the rod and two side regions disposed on the sides of the central region, with a centering ramp arranged in these two side regions. In this way, the central region can still freely receive the rod.

[0017] Advantageously, each of the centering ramps in the lateral regions has two centering surfaces. This effectively guides the relative movement between the lock frame and the rod guide, while ensuring that forces are introduced symmetrically on both sides.

[0018] Another embodiment proposes aligning the centering bevels mirror-symmetric about the plane of symmetry and / or point-symmetric about the point of symmetry. Due to the symmetrical alignment of the centering bevels, these can be used for doors of the same design that hinge on the left and right sides without further measures.

[0019] In addition, it is recommended that the plane of symmetry extend perpendicular to the direction of motion of the rod.

[0020] Another structurally advantageous embodiment proposes a plane of symmetry extending along the transverse center plane of the lock frame and / or rod guide.

[0021] Finally, according to one embodiment, the lock frame and rod guide are designed as plastic parts, particularly as injection-molded plastic parts, which is advantageous in terms of manufacturing technology. Optionally or additionally, the rod can also be designed as a plastic rod, particularly a flat plastic rod, which offers advantages over rods typically designed as galvanized metal rods, especially from a cost perspective.

[0022] Furthermore, to address the aforementioned problems, a door with a door leaf and a door frame has been proposed, in which a lever lock with one or more of the aforementioned features is provided. This yields the advantages already explained in conjunction with the lever lock.

[0023] A favorable door design proposes that the door leaf be attached to the door frame by at least one hinge. Generally, it is recommended to have at least two hinges, or three or more hinges if the door is particularly heavy.

[0024] Advantageous embodiments propose fixing the door hinge to the door frame via hinge fixing points and the lock frame to the door frame via lock frame fixing points, wherein the hinge fixing points and lock frame fixing points are identical and / or symmetrically arranged with respect to the vertical center plane of the door. In particular, the drilling patterns of the hinge fixing points and lock frame fixing points can be identical and / or symmetrically arranged with respect to the vertical center plane of the door. This enables a simple and user-friendly installation process when changing the door hinge, for example, from a door hinged on the left to one hinged on the right.

[0025] Another advantageous embodiment involves providing a door seal between the door leaf and the door frame, with the bolt lock positioned outside the area sealed by the door seal. This simplifies both the door's construction and the sealing of its interior.

[0026] Further details and advantages of the lever lock according to the present invention will now be explained with reference to the accompanying drawings of exemplary embodiments. The drawings show:

[0027] Figure 1 This is a perspective view of a door with an opening in the area of ​​the locking point, hinged on the right side, in the locked position.

[0028] Figure 2 Is with Figure 1 The view corresponding to the door in the image is when the door is unlocked.

[0029] Figure 3 Is with Figure 2 The diagram corresponds to a view in which the rod guide is not shown.

[0030] Figure 4 It is based on Figure 2 A magnified detail view of the detail marked IV.

[0031] Figure 5 This is a three-dimensional front view of the lock frame.

[0032] Figure 6 It is based on Figure 5 A three-dimensional rear view of the lock frame.

[0033] Figure 7 It is a three-dimensional front view of the rod guide, and

[0034] Figure 8 It is based on Figure 7 A three-dimensional rear view of the rod guide.

[0035] Figure 1A perspective view of a door 100 having a door leaf 101 and a door frame 102 is shown. The door leaf 101 is movably hinged to the right side of the door frame 102 via two hinges 103.

[0036] A lever lock 1 is provided to lock the door leaf 101 against the door frame 102. The lever lock 1 is located outside the door seal 104, which is circumferentially arranged between the door leaf 101 and the door frame 102.

[0037] As a basic element, the lever lock 1 has a lever 2 capable of moving in the axial direction, and the lever 2 is arranged such that it can be moved by an operating element 3. The lever 2 is made of plastic and is designed as a flat rod with a substantially rectangular cross-section. The lever 2 is arranged horizontally, i.e., the long side of its cross-section extends parallel to the plane of the door leaf 101. The operating element 3 is a pivot lever handle, but other operating elements are also conceivable, such as a lever handle, a folding handle, a folding lever handle, a key plate with an actuation, or a similar operating element.

[0038] As shown in the figure, the lever lock 1 is designed with two levers, a lower lever 2 and an upper lever 2. When the operating element 3 is actuated, the two levers move toward or away from each other. In this design example, two locking frames 4 are provided, and the levers 2 are locked to the locking frames 4. This creates a two-point locking mechanism. However, more locking points can certainly be set by extending the two levers and increasing the number of locking frames 4, especially for larger doors 100. An additional locking point can also be set in the area of ​​the operating element 3, for example, by means of a latch or similar locking element.

[0039] Figure 1 The locked position V of the lever lock 1 is shown. In this position, the lever 2 is located behind the locking structure 4.1 of the lock frame 4, so the lever 2 cannot be removed from the lock frame 4. In order to open the door 100, the lever 2 must be moved axially so that the narrow point 2.1 of the lever 2 enters the area of ​​the lock frame 4, and then the lever 2 can be removed from the lock frame 4 in this way. Figure 2 and Figure 3 The location of the opening is shown in the image.

[0040] Figure 1 and Figure 2 The rod guide 5 of the rod lock 1 installed inside the door leaf 101 is shown, with the axial movement of its guide rod 2. Figure 3 The rod guide is not shown in the figure, so it is easier to see in this figure that, in this position, one of the narrow points 2.1 of the rod 2 is arranged in the area of ​​the locking structure 4.1 of the lock frame, so that the rod 2 is thus unlocked.

[0041] In addition to the locking function of the locking frame 4 and the guiding function of the rod guide 5, the locking frame 4 and the rod guide 5 also form an alignment device 6, see Figure 4In this respect, the lock frame 4 and the rod guide 5 have a dual function. The centering device 6 is used to compensate for any door sagging that may occur over time and to achieve symmetrical alignment of the door leaf 101 with respect to the door frame 102 when the door 100 is closed.

[0042] The centering device 6 has two centering ramps 7 and 8 extending at a certain angle to the closing direction of the door 100. Only the upper centering ramp 7 is used to compensate for door sagging. The lower centering ramp 8... Figure 4 The second centering ramp 8 does not function in the stopped state shown in the figure. As shown, the second centering ramp 8 only functions when the door leaf 101 of the door 100 is hinged to the left side of the door frame 102 instead of the right side. To understand this, the process involved in replacing the door hinge will be explained below.

[0043] Figure 1 A door 100 is shown hinged on the right side. The door leaf 101 of the door 100 is hinged to the frame 102 via two hinges 103 in the right-hand region of the door leaf 101. A hinge fixing point P2 is located in the region of each hinge. A lever lock 1 is located on the left-hand side of the door 100. The lever lock 1 interacts with a lock frame 4 mounted on the door frame 102 in a locked manner. Lock frame fixing points P1 are located in the region of each lock frame 4.

[0044] To replace the hinge of door 100, first release hinge 103 from hinge fixing point P2. Then release the lock frame 4 from lock frame fixing point P1 as well. In the example of the embodiment, lock frame fixing point P1 and hinge fixing point P2 are the same and formed by double drill holes. Therefore, hinge 103 and lock frame 4 can be interchanged. Alternatively, in the case where the drilling pattern has approximately three drill holes arranged in a triangle, the corresponding drilling pattern can also be arranged symmetrically with respect to the door center plane M of door 100. In this case, hinge 103 can be easily replaced with lock frame 4. Once lock frame 4 has replaced hinge 103, door leaf 101 can be rotated to the upper position and connected to door frame 102 via door hinge 103 arranged on the left side of door leaf 101. In the final step, the direction of operating element 3 must also be changed by rotating it 180°.

[0045] However, the position or alignment of the rod guide 5 arranged inside the door leaf 101 does not need to be changed. Whether the door leaf 101 is used in a door 100 that is hinged on the left or right, the rod guide 5 can maintain its position inside the door leaf 101. After the door hinges have been replaced and the door leaf 101 has been rotated 180° to the upper position, the rod guide 5 is also in the upper position. However, this is not a problem. This is because in this position, it is not the centering bevel 7 that compensates for door sagging, but rather the top centering bevel 8 in this position. In this case, the centering bevel 7 does not function.

[0046] The following will refer to Figures 5 to 8 The diagram illustrates the details of the lock frame 4 and the rod guide 5.

[0047] Figure 5 and Figure 6 A perspective view of the lock frame 4 is shown. The lock frame 4 has a plate-shaped base 4.2 and is fastened to the door frame 102 through two fastening holes 4.3. The lock frame 4 can be divided into three regions: a central region 4.M and two side regions 4.S. The lock frame 4 has a protrusion 9 in each side region 4.S. The protrusion 9 has a trapezoidal profile. The protrusion 9 is arranged symmetrically with respect to the transverse center plane Q of the lock frame 4 in an isosceles trapezoidal manner. In addition, the protrusion 9 is arranged mirror-symmetrically with respect to the longitudinal center plane L. The locking structure 4.1 (on which the rod 2 can be locked) is located inward from the protrusion 9. The centering ramps 7 and 8 are located at the waist of the trapezoidal protrusion 9.

[0048] like Figure 7 and Figure 8 As shown, the rod guide 5 also has a plate-shaped base 5.2. The rod guide 5 also has a central region 5.M and two side regions 5.S, which are adjacent to the central region 5.M on both sides. In the side regions 5.S, there are lugs 11 that project outward at nearly right angles, and a trapezoidal recess 10 is formed on each lug 11. Above and below the recess 10, the lugs 11 have inwardly projecting guide structures 5.1 for guiding the rod 2. The recess 10 has a trapezoidal geometry and has a centering ramp 7 on one side and a centering ramp 8 on the other side, which interact with the corresponding centering ramps 7 and 8 of the lock frame 4 in a centered manner. The recesses 10 are arranged symmetrically with respect to the transverse center plane Q and symmetrically with respect to the longitudinal center plane L of the rod guide.

[0049] The design and arrangement of the protrusion 9 and the recess 10 allow the protrusion 9 to insert into the recess 10 when the door is closed. In each case, the centering ramp 7 arranged at the top of both the protrusion 9 and the recess 10 aligns the door leaf 101 with the door frame 102. This is because when the door 100 is closed, the centering surface 7.1 on the lock frame side of the centering ramp 7 slides along the centering surface 7.2 on the rod guide side of the centering ramp 7, thereby generating a certain lifting motion, which counteracts door sagging. Since the two centering surfaces 7.1 are arranged in each of the two side regions 4.S, 5.S, and the two centering surfaces 8.2 are arranged in each of the side regions 5.S, this results in a large-area, symmetrical introduction of the gravity of the door leaf 101.

[0050] Only the top centering bevel 7 is used. When the door hinge is replaced, another centering bevel 8 located at the top in this position is used.

[0051] The aforementioned lever lock design not only allows the door leaf 101 to be locked to the door frame 102, but also enables simultaneous compensation for any door sagging. Even when changing the door leaf 101 from the left hinge position to the right hinge position, the lever guide 5 does not need to be removed, but can remain on the door leaf 101. Two centering ramps 7 and 8 are provided for this purpose, of which only one centering ramp 7 and 8 is used at a time depending on the rotation.

[0052] List of reference numerals

[0053] 1-bar lock

[0054] 2 strokes

[0055] 2.1 Narrow point

[0056] 3 operating elements

[0057] 4 lock frames

[0058] 4.1 Locking Structure

[0059] 4.2 Matrix

[0060] 4.3 Fastening Holes

[0061] 4.M Central Area

[0062] 4. S-side region

[0063] 5-bar guide

[0064] 5.1 Guiding Structure

[0065] 5.2 Matrix

[0066] 5.M Central Area

[0067] 5. S-side area

[0068] 6 centering devices

[0069] 7 pairs of inclined planes

[0070] 7.1 Centering Surface

[0071] 7.2 Centering Surface

[0072] 8 pairs of inclined planes

[0073] 8.1 Centering Surface

[0074] 8.2 Centering Surface

[0075] 9 protrusions

[0076] 10 recesses

[0077] 11 protruding ears

[0078] 100 doors

[0079] 101 doors

[0080] 102 door frame

[0081] 103 door hinges

[0082] 104 door seals

[0083] V Lock Position

[0084] O Open Location

[0085] P1 Locking Fixing Point

[0086] P2 hinge fixing point

[0087] S-symmetric plane

[0088] M gate center plane

[0089] L longitudinal center plane

[0090] Q is the transverse center plane.

Claims

1. A lever lock for locking a door leaf (101) to a door frame (102) using at least one lever (2), said at least one lever (2) being arranged on the side of the door leaf and movable between a locked position (V) and an open position (O), wherein in the locked position, the lever (2) is locked to a lock frame (4), said lock frame being arranged on the side of the door frame; and in the open position, the lever (2) is released from the lock frame (4), wherein the movement of the lever (2) is guided by a lever guide (5), said lever guide being arranged on the side of the door leaf. Its features are, The lock frame (4) and the rod guide (5) have a centering device (6) having two centering ramps (7, 8) for aligning the closed door leaf (101) relative to the door frame (102), one of the two centering ramps being usable for a door (100) hinged on the left and the other of the two centering ramps being usable for a door (100) hinged on the right.

2. The lever lock according to claim 1, characterized in that, The centering device (6) has at least one protrusion (9) and one recess (10), and the centering inclined surfaces (7, 8) are disposed on the at least one protrusion and one recess.

3. The lever lock according to claim 2, characterized in that, The protrusion (9) and the recess (10) have a trapezoidal shape, and the centering slope (7, 8) is formed by the waist of the trapezoid.

4. The lever lock according to claim 2 or 3, characterized in that, The protrusion (9) is provided on the lock frame (4) and the recess (10) is provided on the rod guide (5).

5. The lever lock according to claim 2 or 3, characterized in that, The protrusion (9) is integrally formed on the lock frame (4) and / or the recess (10) is integrally formed on the rod guide (5).

6. The lever lock according to any one of claims 1 to 3, characterized in that, Each of the centering ramps (7, 8) has at least two centering surfaces for guiding the relative movement of the rod guide (5) relative to the lock frame (4) when the door (100) is closed.

7. The lever lock according to claim 4, characterized in that, At least one centering surface is provided on the lock frame (4) and at least one centering surface is provided on the rod guide (5).

8. The lever lock according to any one of claims 1 to 3, characterized in that, The locking frame (4) and the rod guide (5) have a central region (4.M, 5.M) for accommodating the rod (2) and two side regions (4.S, 5.S) disposed on the sides of the central region, and the centering ramps (7, 8) are disposed in the two side regions.

9. The lever lock according to claim 8, characterized in that, Each of the centering ramps (7, 8) in the side regions (4.S, 5.S) has two centering surfaces.

10. The lever lock according to any one of claims 1 to 3, characterized in that, The centering slopes (7, 8) are mirror-symmetrically aligned with the plane of symmetry and / or symmetrically aligned with the points of symmetry.

11. The lever lock according to claim 10, characterized in that, The plane of symmetry extends perpendicular to the direction of motion of the rod (2).

12. The lever lock according to claim 10, characterized in that, The plane of symmetry extends along the transverse center plane of the lock frame (4) and / or the rod guide (5).

13. The lever lock according to any one of claims 1 to 3, characterized in that, The locking frame (4) and the rod guide (5) are designed as plastic components, and / or the rod (2) is designed as a plastic rod.

14. The lever lock according to claim 1, wherein, The lever lock is a plastic lever lock.

15. The lever lock according to claim 3, wherein, The trapezoid is an isosceles trapezoid.

16. The lever lock according to claim 6, wherein, Each of the centering ramps (7, 8) has four centering surfaces for guiding the relative movement of the rod guide (5) relative to the lock frame (4) when the door (100) is closed.

17. The lever lock according to claim 7, wherein, Two centering surfaces are set on the lock frame (4) and two centering surfaces are set on the rod guide (5).

18. The lever lock according to claim 13, wherein, The plastic component is a plastic injection molded component, and / or the plastic rod is a flat plastic rod.

19. A door having a door leaf (101) and a door frame (102), characterized in that The door has a lever lock (1) according to any one of the preceding claims.

20. The door according to claim 19, characterized in that, The door leaf (101) is hinged to the door frame (102) by at least one door hinge (103).

21. The door according to claim 20, characterized in that, The door hinge (103) is fixed to the door frame (102) via the hinge fixing point (P2), and the lock frame (4) is fixed to the door frame (102) via the lock frame fixing point (P1). The drilling patterns of the hinge fixing point (P2) and the lock frame fixing point (P1) are exactly the same and are arranged symmetrically with respect to the vertical door center plane (M).

22. The door according to any one of claims 19 to 21, characterized in that, A door seal (104) is disposed between the door leaf (101) and the door frame (102), and the rod lock (1) is disposed outside the area sealed by the door seal (104).

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