EP4363681B1 - Locking bar arrangement - Google Patents

Description

The invention relates to a rod lock, in particular a plastic rod lock, for locking a door leaf to a door frame with at least one rod which can be arranged on the door leaf side and which is arranged to be movable back and forth between a locking position in which the rod is locked to a lock holder which can be arranged on the door frame side and an open position in which the rod is released from the lock holder, wherein the movements of the rod are guided via a rod guide which can be arranged on the door leaf side.

Such rod closures are used in many areas of technology, especially in industrial applications.

For example, the EP 0 980 696 A2 a rod lock for electronics and electrical engineering. Other rod locks are available from the WO 2005/052296 A1 and the DE 86 25 607 U1 known.

The bar locks are used to lock a door in its closed position. When the door is closed, the door leaf, which is attached to a door frame via several hinges, is locked to the door frame so that the door leaf can only be opened after the lock has been released. The term "door leaf" is understood to mean all types of locking elements, such as flaps, hatches, windows or other locking elements. The term "door frame" is understood to mean all types of corresponding counterparts that enclose the door opening.

Rod locks have at least one axially movable rod that can move back and forth between a locking position and an open position. The rod is usually arranged on the door leaf and interacts with a lock holder arranged on the door frame. In the locking position of the rod, it engages behind a locking contour of the lock holder. In the open position, the rod can be detached from the lock holder. The rod locks often also have a rod guide arranged on the door, via which the axial movements of the rod are guided.

It is well known that many types of doors, especially heavy doors that are opened and closed frequently, tend to sag downwards on the side opposite the hinges over time due to the effects of gravity and wear. This is often not a problem for the function of the door, but the sagging of the door leaf often leads to an undesirable, uneven appearance of the closed door. In practice, it is therefore necessary for many doors to adjust the door leaf in relation to the door frame from time to time in order to compensate for the sagging of the door that occurs over time. This often requires complex mechanical adjustment devices that must be adjusted manually.

A less complex alternative for other types of doors is to provide a centering structure on the door frame and the door leaf, which automatically centers the door leaf when the door is closed, i.e. brings it into a defined alignment with respect to the door frame. Such centering structures do not require manual adjustment to compensate for the sagging of the door, nor do they require a complex adjustment mechanism. However, they have proven to be disadvantageous in situations in which a door leaf is to be used on both left and right hinged doors. In this case, it is often necessary to dismantle the centering structures, reposition them according to the respective hinge situation and then assemble them accordingly, which involves a certain amount of assembly work.

Against this background, it is the object of the present invention to provide a bar lock which allows the door sag to be compensated for in a simple and easy-to-install manner.

This task is solved in a rod lock of the type mentioned above in that the lock holder and the rod guide for aligning the closed door leaf with respect to the door frame have a centering with two centering bevels, one of which can be used optionally for left-hinged doors and one for right-hinged doors.

The lock holder and the rod guide have a dual function. The two elements are not only used to lock or guide the rod of the rod lock, but also to align the closed door leaf with the door frame. The door sag can be compensated for using the centering. Due to the two centering bevels, it is not necessary to reposition the centering when changing the door leaf from a left-hinged door to a right-hinged door or vice versa. Instead, one of the two centering bevels can be used for the respective stop situation. The other remains unused. This results in an assembly-friendly compensation of the door sag using the lock holder and the rod guide.

An advantageous embodiment provides that the centering has at least one projection and one recess on which the centering bevels are arranged. The projection and the recess can interact with each other when the door is closed and produce the desired centering via the centering bevels.

In this context, a further, structurally advantageous embodiment provides that the projection and/or the recess have the shape of a trapezoid, in particular an isosceles trapezoid, with the centering bevels being formed by the legs of the trapezoid. The trapezoidal projection can, guided over the centering bevels, easily penetrate the trapezoidal shape of the recess, which acts like a funnel. This results in reliable centering that is less prone to errors.

A further advantageous embodiment provides that the projection is arranged on the closure holder and/or the recess is arranged on the rod guide.

A design according to which the projection and/or the recess are formed as one piece on the closure holder and/or the rod guide is of structural advantage. This keeps the assembly effort to a minimum, since it is not necessary to provide the projection and/or the recess in a separate assembly step.

A further advantageous embodiment provides that the centering bevels each have at least two, preferably four, centering surfaces for guiding the relative movements of the rod guide in relation to the lock holder when the door is closed. The relative movements when the door is closed can be guided via the centering surfaces. The at least two centering surfaces interacting with each other also result in a favorable, large-area force introduction and thus comparatively low wear. In the case of four centering surfaces, wear can be further reduced. Furthermore, the four centering surfaces can be arranged symmetrically on both sides of the rod. This also results in a favorable, symmetrical introduction of the forces.

In this context, a further embodiment provides that at least one, preferably two, centering surfaces are arranged on the closure holder and/or one, preferably two, centering surfaces are arranged on the rod guide. The opposing centering surfaces on the closure holder and the rod guide allow a defined relative movement with a simultaneously favorable introduction of force.

A further advantageous embodiment provides that the closure holder and the rod guide have a central region for receiving the rod and two side regions arranged to the side of this in which the centering bevels are arranged. In this way, the central region remains free to receive the rod.

Advantageously, the centering bevels in the side areas each have two centering surfaces. This results in good guidance of the relative movement between the bolt holder and the rod guide while at the same time ensuring good, symmetrical introduction of forces on both sides.

Another design provides that the centering bevels are aligned mirror-symmetrically to a plane of symmetry and/or point-symmetrically to a point of symmetry. Due to the symmetrical alignment of the centering bevels, they can be used for both left and right hinged doors of the same design without any further measures.

Furthermore, it is proposed that the plane of symmetry extends normal to the direction of motion of the rod.

A further structurally advantageous embodiment provides that the plane of symmetry extends along a transverse center plane of the closure holder and/or the rod guide.

Finally, a design according to which the closure holder and the rod guide are designed as plastic parts, in particular as plastic injection-molded parts, is advantageous in terms of production technology. Alternatively or additionally, the rod can also be designed as a plastic rod, in particular as a plastic flat rod, which is particularly advantageous under In terms of cost aspects, it offers advantages over rods that are otherwise often made from galvanized metal rods.

Furthermore, to solve the above-mentioned problem, a door with a door leaf and a door frame is proposed, in which a bar lock with one or more of the features described above is provided. This results in the advantages already explained in connection with the bar lock.

An advantageous design of the door provides that the door leaf is attached to the door frame via at least one door hinge. As a rule, it is advisable to provide at least two hinges or, in the case of particularly heavy doors, three or more hinges.

An advantageous embodiment provides that the door hinge is fixed to the door frame via a hinge fastening point and the lock holder is fastened to the door frame via a lock holder fastening point, wherein the hinge fastening point and the lock holder fastening point are identical and/or arranged symmetrically to a vertical center plane of the door. In particular, the drilling pattern of the hinge fastening point and the lock holder fastening point can be identical and/or arranged symmetrically to a vertical center plane of the door. This allows for simple and easy installation processes when changing the door hinge, for example from a left-hinged door to a right-hinged door.

A further advantageous embodiment provides that a door seal is arranged between the door leaf and the door frame and the rod lock is arranged outside the area sealed by the door seal. This results in a simple construction of the door and at the same time simple sealing of the interior of the door.

Fig. 1

eine perspektivische Ansicht einer rechts angeschlagenen Tür mit einer Freimachung im Bereich eines Verschlusshalterbefestigungspunkts bei verriegelter Tür,

Fig. 2

eine der Ansicht in Fig. 1 entsprechende Darstellung bei entriegelter Tür,

Fig. 3

eine der Darstellung in Fig. 2 entsprechende Ansicht, in welcher eine Stangenführung nicht dargestellt ist,

Fig. 4

eine vergrößerte Detailansicht gemäß der in Fig. 2 mit IV bezeichneten Einzelheit,

Fig. 5

eine perspektivische Vorderansicht eines Verschlusshalters,

Fig. 6

eine perspektivische Rückansicht des Verschlusshalters gemäß Fig. 5,

Fig. 7

eine perspektivische Vorderansicht einer Stangenführung, und

Fig. 8

eine perspektivische Rückansicht der Stangenführung gemäß Fig. 7.

Further details and advantages of a rod closure according to the invention will be explained below with the aid of the attached drawings of an embodiment. In them:

Fig.1

a perspective view of a right-hinged door with a clearance in the area of a lock holder attachment point when the door is locked,

Fig.2

one of the views in Fig.1 corresponding display when the door is unlocked,

Fig.3

one of the representation in Fig.2 corresponding view in which a rod guide is not shown,

Fig.4

an enlarged detailed view according to the Fig.2 detail marked IV,

Fig.5

a perspective front view of a lock holder,

Fig.6

a perspective rear view of the closure holder according to Fig.5 ,

Fig.7

a perspective front view of a rod guide, and

Fig.8

a perspective rear view of the rod guide according to Fig.7 .

Fig.1 shows a perspective view of a door 100 with a door leaf 101 and a door frame 102. The door leaf 101 is movably attached to the right of the door frame 102 via two hinges 103.

A bar lock 1 is provided to lock the door leaf 101 against the door frame 102. The bar lock 1 is located outside a door seal 104, which is arranged all the way around between the door leaf 101 and the door frame 102.

As an essential element, the rod lock 1 has a rod 2 which is arranged to be movable in the axial direction and which is arranged to be movable via an operating element 3. The rod 2 is made of plastic and is designed as a flat rod with an essentially rectangular cross-section. The rod 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 pivoting lever handle, but other operating elements are also conceivable, for example lever handles, folding handles, folding lever handles, key plates with actuation or similar operating elements.

The bar lock 1 shown in the figures is designed as a two-part system with a lower bar 2 and an upper bar 2, which are moved towards or away from each other when the operating element 3 is operated. In the exemplary embodiment, two lock holders 4 are provided, to which the bars 2 are locked. This results in a 2-point lock. However, more locking points can be provided, particularly for larger doors 100, by lengthening the two bars and increasing the number of lock holders 4. It is also possible to provide another locking point in the area of the operating element 3, for example by means of a locking tongue or a similar locking element.

In Fig.1 the locking position V of the rod lock 1 is shown. In this position, the rod 2 is behind a locking contour 4.1 of the lock holder 4, which is why it cannot be moved out of the lock holder 4. In order to open the door 100, it is necessary that the rod 2 is moved axially, in such a way that a narrow point 2.1 of the rod 2 enters the area of the lock holder 4 and the rod 2 can be moved out of the lock holder 4 in this way. This open position is in Fig.2 and Fig.3 shown.

In the Fig.1 and 2 a rod guide 5 of the rod lock 1 mounted on the inside of the door leaf 101 can be seen, which guides the axial movements of the rod 2. In Fig.3 the rod guide is not shown, which is why it can be seen somewhat better in this drawing that in this position one of the narrow points 2.1 of the rod 2 is arranged in the area of the locking structures 4.1 of the bolt holder and the rod 2 is therefore unlocked.

In addition to the locking function of the bolt holder 4 and the guiding function of the rod guide 5, the bolt holder 4 and the rod guide 5 also form a centering 6, cf. Fig.4 The lock holder 4 and the rod guide 5 have a dual function in this respect. The centering 6 serves to compensate for any sagging of the door that may occur over time and to achieve a symmetrical alignment of the door leaf 101 with respect to the door frame 102 when the door 100 is closed.

The centering device 6 has two centering bevels 7, 8 that run at an angle to the closing direction of the door 100. To compensate for the door sag, only the upper centering bevel 7 is used. The lower centering bevel 8 is in the stop situation according to Fig.4 without function. A The second centering bevel 8 only comes into play when the door leaf 101 of the door 100 is not to be hinged to the right of the door frame 102, as shown in the figures, but is to be hinged to the left. In order to understand this, the processes involved in changing the door hinge will first be explained below.

In Fig.1 a right-hinged door 100 is shown. The door leaf 101 of the door 100 is attached to the frame 102 via two hinges 103 in the right-hand area of the door leaf 101. In the area of the hinges there is a hinge fastening point P2. On the left-hand side of the door 100 there is the bar lock 1. The bar lock 1 works together to lock the lock holders 4 mounted on the door frame 102. In the area of the lock holders 4 there is a lock holder fastening point P1.

To change the position of the door 100, the hinges 103 are first detached from the hinge fastening points P2. The lock holders 4 are then also detached from the lock holder fastening points P1. The lock holder fastening points P1 and the hinge fastening points P2 are identical to one another in the exemplary embodiment and are formed by a double drill hole. It is therefore possible to exchange the hinges 103 and the lock holders 4. Alternatively, in the case of a drilling pattern with approximately three drill holes in a triangular arrangement, it would also be possible to arrange the corresponding drilling patterns symmetrically to the center plane M of the door 100. In this case too, the hinges 103 could easily be exchanged for the lock holders 4. As soon as the locking holders 4 have taken the place of the hinges 103, the door leaf 101 can be turned into an overhead position and attached to the door frame 102 via the door hinges 103 then arranged on the left side of the door leaf 101. In a final step, the orientation of the control element 3 by rotating it by 180°.

However, the position or orientation of the rod guide 5 arranged on the inside of the door leaf 101 does not need to be changed. This can remain in its position on the inside of the door leaf 101 regardless of whether the door leaf 101 is used in a left or right hinged door 100. After the door stop has been changed and the door leaf 101 has been rotated 180° into an overhead position, the rod guide 5 is also in an overhead position. This is not a problem, however. Because in this position, not the centering bevel 7 but the centering bevel 8 located at the top in this position is used to compensate for the door sag. In this case, the centering bevel 7 has no function.

Details of both the bolt holder 4 and the rod guide 5 are explained below using the illustrations in the Fig. 5 to 8 be explained.

In the Fig. 5 and 6 the lock holder 4 is shown in perspective view. The lock holder 4 has a plate-shaped base body 4.2 and is attached to the door frame 102 via two fastening holes 4.3. The lock holder 4 can be divided into three areas, a central area 4.M and two side areas 4.S. In the side areas 4.S, the lock holder 4 has a projection 9. The projections 9 have a trapezoidal contour. In the manner of an isosceles trapezoid, the projections 9 are arranged symmetrically to a transverse center plane Q of the lock holder 4. Furthermore, the projections 9 are arranged mirror-symmetrically to a longitudinal center plane L. The locking structures 4.1, to which the rod 2 can be locked, are located inwards from the projections 9. The centering bevels 7, 8 are located on the legs of the trapezoidal projections 9.

As the depictions in the Figs. 7 and 8 As can be seen, the rod guide 5 also has a plate-shaped base body 5.2. The rod guide 5 also has a central region 5.M and two side regions 5.S adjoining it at the sides. In the side regions 5.S there are tabs 11 which project outwards at approximately right angles and on each of which a trapezoidal recess 10 is formed. Above and below the recess 10, the tabs 11 have inward-projecting guide structures 5.1 for guiding the rod 2. The recess 10 has a trapezoidal geometry and has the centering bevel 7 on one side and the centering bevel 8 on the other side, which interact with the corresponding centering bevels 7, 8 of the closure holder 4 to center it. The recess 10 is arranged symmetrically to a transverse center plane Q and symmetrically to a longitudinal center plane L of the rod guide.

The design and arrangement of the projections 9 and the recesses 10 is such that the projections 9 can penetrate into the recesses 10 when the door 100 is closed. In this case, the centering bevel 7 at the top, which is arranged on both the projections 9 and the recesses 10, causes the door leaf 101 to be aligned with respect to the door frame 102. This is because when the door 100 is closed, the centering surfaces 7.1 on the lock holder side slide along the centering surfaces 7.2 on the rod guide side of the centering bevel 7 and thereby generate a defined lifting movement which counteracts the sagging of the door. Since two centering surfaces 7.1 are provided in each of the two side areas 4.S, 5.S and two centering surfaces in each of the side areas 5.S, the result is a large-area and symmetrical introduction of the weight forces of the door leaf 101.

Only the centering bevel 7 at the top is ever used. When changing the door hinge, the other centering bevel 8, which is at the top in this position, is used.

The design of a rod lock described above not only allows the door leaf 101 to be locked to the door frame 102, but also allows any sagging of the door to be compensated. Even when changing the door leaf 101 from a left-hand to a right-hand stop, the rod guide 5 does not have to be removed, but can remain on the door leaf 101. Two centering bevels 7, 8 are provided for this purpose, of which only one centering bevel 7, 8 is used depending on the stop situation.

Reference list:

1

Rod closure

2

rod

2.1

Narrow spot

3

Control element

4

Lock holder

4.1

Locking structure

4.2

Base body

4.3

Mounting hole

4.M

Middle range

4.S

Page area

5

Rod guide

5.1

Management structure

5.2

Base body

5.M

Middle range

5.S

Page area

6

centering

7

Centering bevel

7.1

Centering surface

7.2

Centering surface

8

Centering bevel

9

projection

10

Return

11

Tab

100

door

101

Door leaf

102

Door frame

103

Door hinge

104

Door seal

V

Locking position

O

Disclosure

P1

Lock holder attachment point

P2

Hinge attachment point

M

Door center plane

L

Longitudinal median plane

Q

Transverse median plane

Claims (17)

1. Rod lock, in particular plastic rod lock, for locking a door leaf (101) on a door frame (102) with at least one rod (2) which can be arranged on the door leaf side and which can be moved between a locked position (V) in which the rod (2) is locked to a locking holder (4) which can be arranged on the door frame side, and an open position (O) in which the rod (2) is released from the lock holder (4), wherein the movements of the rod (2) are guided via a rod guide (5) which can be arranged on the door leaf side, characterized in
   in that the lock holder (4) and the rod guide (5) have a centering device (6) with two centering bevels (7, 8) for aligning the closed door leaf (101) relative to the door frame (102), one of which can be used optionally for doors (100) hinged on the left and one of which can be used optionally for doors (100) hinged on the right.
2. Rod lock according to claim 1, characterized in that the centering device (6) has at least one projection (9) and one recess (10) on which the centering bevels (7, 8) are arranged.
3. Rod lock according to claim 2, characterized in that the projection (9) and/or the recess (10) have the shape of a trapezoid, in particular an isosceles trapezoid, the centering bevels (7, 8) being formed by the legs of the trapezoid.
4. Rod lock according to one of claims 2 or 3, characterized in that the projection (9) is arranged on the lock holder (4) and/or the recess (10) is arranged on the rod guide (5).
5. Rod lock according to one of claims 2 to 4, characterized in that the projection (9) and/or the recess (10) are integrally formed in one piece on the lock holder (4) and/or the rod guide (5).
6. Rod lock according to one of the preceding claims, characterized in that the centering bevels (7, 8) each have at least two, preferably four, centering surfaces for guiding the relative movements of the rod guide (5) with respect to the lock holder (4) when the door (100) is closed.
7. Rod lock according to claim 4, characterized in that in each case at least one, preferably two, centering surfaces are arranged on the lock holder (4) and/or one, preferably two, centering surfaces are arranged on the rod guide (5).
8. Rod lock according to one of the preceding claims, characterized in that the lock holder (4) and the rod guide (5) have a central region (4.M, 5.M) for receiving the rod (2) and two side regions (4.S, 5.S) arranged laterally thereof, in which the centering bevels (7, 8) are arranged.
9. Rod lock according to claim 8, characterized in that the centering bevels (7, 8) in the side regions (4.S, 5.S) each have two centering surfaces.
10. Rod lock according to one of the preceding claims, characterized in that the centering bevels (7, 8) are aligned mirror-symmetrically to a plane of symmetry and/or point-symmetrically to a point of symmetry.
11. Rod lock according to claim 10, characterized in that the plane of symmetry extends normal to the direction of movement of the rod (2).
12. Rod lock according to claim 10 or 11, characterized in that the plane of symmetry extends along a transverse central plane of the lock holder (4) and/or the rod guide (5).
13. Rod lock according to one of the preceding claims, characterized in that the lock holder (4) and the rod guide (5) are designed as plastic parts, in particular as plastic injection-moulded parts, and/or in that the rod (2) is designed as a plastic rod, in particular as a flat plastic rod.
14. Door with a door leaf (101) and a door frame (102), characterized by a rod lock (1) according to one of the preceding claims.
15. Door according to claim 14, characterized in that the door leaf (101) is hinged to the door frame (102) via at least one door hinge (103).
16. Door according to claim 15, characterized in that the door hinge (103) is fixed to the door frame (102) via a hinge fixing point (P2) and the lock holder (4) is fixed to the door frame (102) via a lock holder fixing point (P1), the hinge fixing point (P2) and the lock holder fixing point (P1) being identical and/or arranged symmetrically with respect to a vertical door centre plane (M).
17. Door according to one of claims 14 to 16, characterized in that a door seal (104) is arranged between the door leaf (101) and the door frame (102) and the rod lock (1) is arranged outside the area sealed via the door seal (104).

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