Cover plate, modular door fitting system and method for mounting

Abstract

Cover plate (2, 5) for mounting on a first side of a door leaf with a first side (3) facing away from the door leaf and a second side (4) facing towards the door leaf, characterized in that mounting elements (11, 22) for mounting accessories of the cover plate, particularly a rosette module (10) and / or an actuating element (17), are actuatable only from the second side. The invention further relates to a modular door fitting system (1) comprising at least one cover plate (2, 5) according to any one of the preceding claims, wherein the modular door fitting system (1) comprises a first cover plate (2) for mounting on a first side of a door leaf with a first side (3) facing away from the door leaf and a second side (4) facing towards the door leaf, and a second cover plate (5) for mounting on a second side of a door leaf with a first side (6) facing away from the door leaf and a second side (7) facing towards the door leaf, characterized by fixing means (8) for fixing the cover plates (2, 5) to each other through the door leaf, wherein at least one of the first or second cover plates (2, 5) has at least one mounting portion (9, 16) for mounting an accessory (10, 17), particularly a rosette module (10) and / or an actuating element (17), on the first side (3, 6) of the at least one cover plate (2, 5), and at least one accessory (10, 17) mountable on the mounting portion (9) by mounting elements (11), wherein the mounting elements (11) are actuatable only from the second side (4, 7) of the at least one cover plate (2, 5). The invention further relates to a method for mounting such a modular door fitting system.

Description

[0001] The application concerns a cover plate, a modular door fitting system comprising at least one of such a cover plate for mounting on a first side of a door leaf with a first side facing away from the door leaf and a second side facing towards the door leaf, and a second cover plate for mounting on a second side of a door leaf with a first side facing away from the door leaf and a second side facing towards the door leaf. The application further concerns a method for mounting such a modular door fitting system on a door leaf.

[0002] In general, door fitting systems are used to enable the door leaf to be opened, closed, and locked by a user in an uncomplicated way. These door fittings generally include means for operating the door, such as door handles or door knobs to open and close the door leaf, and means to operate a locking mechanism or a latching mechanism, normally arranged inside the door leaf. In private areas, identical door fittings are often used on the opposite sides of the door leaf in order to be able to operate and lock the door from both sides. Hence, a pair of identical cover plates are used on both sides.

[0003] Especially in public areas, it is often times not desired to be able to operate a door in the same way from both sides. For example, doors in public toilets should only be lockable from the inside of a cubicle and should not allow the door to be opened from the outside when the cubicle is occupied and locked. A door fitting system for these applications thus comprises two different cover plates. A first cover plate is mounted on the first side of the door leaf in such a way, that its first side with the means for operating the door faces away from the door leaf, while a second cover plate is mounted on the opposite second side of the door leaf in such a way, that its first side with the means for operating the door faces away from the door leaf. The first cover plate might comprise a handle and means to operate a locking mechanism from the inside of a room, while the second cover plate might only comprise a handle or a simple push plate to allow the door leaf to be opened from the outside of the room but not to lock and unlock the door from the outside. In other applications, such as in a prison cell or a psychiatric facility, a different asymmetric arrangement might be desired only allowing to lock and unlock a door from the side of the door leaf facing to the outside of a room.

[0004] While the known modular door fitting systems enable such an asymmetric arrangement by using a first and a second cover plate, these cover plates are fixed directly to the door leaf with screws inserted and tightened from the respective first side of the cover plate. Known door fitting systems are designed for a specific application. Furthermore, the means for operating the door are also fixed to the respective cover plate from the first side of the cover plate. While this allows for a fast way of fixing the means for operating the door to the cover plates and the cover plates to the door leaf, this enables a way to tamper with the fitting system by loosening or removing the means for operating the door or individual cover plates, thus gaining an unwanted and unauthorized access to a locking mechanism and thus to a space closed by the door.

[0005] In all places where people are detained, especially in prisons and psychiatric facilities, besides the desire to prevent outbreaks of inmates, a tamper resistance door locking systems is also required to prevent inmates from tampering with the system in such a way that they can use the door locking system to harm or even kill themselves. This may be the case if an inmate can loosen parts of the door locking systems from inside his cell, creating an edge or protrusion that can be used to secure a ligature. However, such an anti-ligature proof cannot be achieved with the conventional door fitting systems described above, as an inmate can access the screws that secure the cover plate to the door leaf or apply a force or torque to the cover plate in order to loosen or break the direct connection between the cover plate and the door leaf.

[0006] It is an object of the present invention to overcome at least one of the disadvantages of the prior art. It is a further object to enhance security of door fittings. It is another object of the present invention to provide a modular door fitting system which prevents tampering with the fitting system from at least one side of a door leaf in an anti-ligature proof manner.

[0007] This object is achieved with a cover plate, a modular door fitting system and a method for mounting such a cover plate and / or modular door fitting system according to the independent claims.

[0008] The inventive cover plate is for mounting on a first side of a door leaf with a first side facing away from the door leaf and a second side facing towards the door leaf. The cover plate is designed such that mounting elements for mounting accessories of the cover plate are actuatable only from the second side facing towards the door leaf. An accessory of the cover plate may be for example a rosette module, or an actuating element such as a latch handle or a pull handle. By using mounting elements actuatable only from the second side of the cover plate, which faces towards the door leaf in the mounted position of the cover plate, i.e. from the backside of the cover plate, the accessory is fixed to the at least one cover plate in a way which prevents access to the mounting elements from the outside of the door fitting system in the position mounted on the door leaf.

[0009] In a preferred embodiment the cover plate has a mounting portion comprising a mounting plane for mounting a the accessory on the first side of the cover plate. The mounting plane is recessed relative to the first side of the cover plate. By recessing the mounting portion relative to the first side of the at least one cover plate the interface between the accessory and the cover plate cannot be easily accessed from the outside. Thus, tampering with the accessory and manipulating the interface between the accessory and the cover plate is further impeded. Furthermore, securing of any ligature in the interface can be prevented, particularly if the gap between the accessory and side faces of the recessed mounting portion is less than 0.5 mm.

[0010] The mounting portion and / or the accessory can have at least one alignment lug for aligning the accessory and the mounting portion, and the accessory and / or the mounting portion can have at least one corresponding notch. The alignment lug and corresponding notch act together to align the accessory and the mounting portion during mounting of the accessory and / or to absorb external forces and torques acting on the mounted accessory, thus protecting the accessory from being forcibly removed from the cover plate and the mounting elements from shearing off. The alignment lug, particularly two alignment lugs, can be a part of the mounting portion and the at least one notch corresponding to the alignment lug, particularly two notches, can be part of the accessory. In the same way, the alignment lug, particularly two alignment lugs, can be a part of the accessory and the at least one notch corresponding to the alignment lug, particularly two notches, can be part of the mounting portion. It is also possible for the mounting portion to be provided with one or more alignment lugs and one or more notches, each corresponding to a notch or an alignment lug of the accessory.

[0011] In a preferred embodiment the alignment element is arranged on the mounting plane of the mounting portion. This way the alignment element is not accessible from the first side of the cover plate but hidden at the backside of the accessory .

[0012] The cover plate has a mounting portion for mounting a rosette module on the first side of the at least one cover plate, and at least one rosette module mountable on the mounting portion by mounting elements actuatable only from the second side of the at least one cover plate. By having the rosette module mounted to the cover plate a specific rosette module appropriate for the specific application can be selected and applied. In this way, the modular door fitting system enables the most appropriate rosette module to be used for each application in a modular way. The at least one cover plate can provide a defined position with its mounting portion for mounting a rosette module to the first side of the cover plate, which faces away from the door leaf in the mounted position of the fitting system, i.e. to the frontside of the cover plate. By using mounting elements actuatable only from the second side of the cover plate, which faces towards the door leaf in the mounted position of the cover plate, i.e. from the backside of the cover plate, the rosette module is fixed to the at least one cover plate in a way which prevents access to the mounting elements from the outside of the door fitting system in the position mounted on the door leaf.

[0013] The rosette module can comprise means to operate a locking mechanism and / or a latching mechanism.

[0014] According to a further embodiment, the cover plate is provided with receptacles for inserting the fixing means. The fixing means can be connected to the cover plate in an uncomplicated way by inserting fixing means in the receptacles. The receptacles can be designed in a manner that the fixing means can sit flush with the surface of the first side of the cover plate in the receptacles. In this way, any edges which could be used to secure a ligature can be prevented. In particular, the receptacles can be countersunk bores with a chamfer.

[0015] In a further embodiment, the receptacles are additionally provided with a hexagonal cross-section on the inside of the plate, allowing an alignment of the fixing means in the receptacles and / or a rotation prevention of elements interacting with the fixing means for fixing the cover plates, e.g. sleeve nuts.

[0016] The cover plate can be provided with flat-headed sleeve nuts and / or threaded sockets for receiving the fixing means, particularly screws or tread rods, extending from the other cover plate through the door leaf. Threaded sockets can be integral parts of the cover plate, allowing the cover plate to directly receive the threaded end of the fixing means to facilitate a joint that fixes the cover plates together. By using sleeve nuts, which are not permanently fixed to the cover plate, but are rather placed as a separate element in a receptacle of the cover plate, the same cover plate can be used to receive the fixing means or the sleeve nuts, depending on the specific application of the system. The sleeve nuts can be protected from undue manipulation from the first side of the cover plate as their flat heads do not allow the use of any tools to loosen the sleeve nuts. Said sleeve nuts can have a threaded bore for screwing in a thread of one of the fixing elements. These sleeve nuts can have special heads comprising a hexagonal section with a hexagonal outer circumference and a thread section, particularly a cylindrical section with a threaded bore.

[0017] In a preferred embodiment, the at least one mounting portion comprises an additional mounting portion. The cover plate has an additional mounting portion for mounting a further accessory such as an actuating element, particularly a latch handle and / or a pull handle. By providing an additional mounting portion for mounting an actuating element, the cover plate can be outfitted with further means for operating the door besides means to operate a locking mechanism. A pull handle can provide an easy way to actuate the door leaf in order to open or close the door. A latch handle can provide an easy way to actuate the latching mechanism of a door in addition to providing an easy way to actuate the door leaf in order to open or close the door.

[0018] The additional mounting portion can comprise a guiding groove for guiding the, particularly pivoting, movement of the actuating element along the at least one cover plate. In an embodiment the guiding groove comprises an undercut on one flank. The flanks of the guiding groove are the long sides of the groove in the cover plate, which run parallel to the guided movement of the actuating element. By comprising an undercut on one flank, the actuating element can be easily secured in a movable manner in the guiding groove.

[0019] It is possible that the flank of the guiding groove diametral opposite to the flank with the undercut comprise a gradually rising profile. A point or region suitable to secure a ligature can be prevented by using a gradually rising profile rather than a sharp edge on this flank.

[0020] In an embodiment the mounting element comprises an additional mounting element. The actuating element is mountable on the additional mounting portion by at least one additional mounting element actuatable only from the second side of the at least one cover plate. By using additional mounting elements actuatable only from the second side of the cover plate, which faces towards the door leaf in the mounted position of the fitting system, i.e. from the backside of the cover plate, the actuating element can be fixed to the at least one cover plate in a way which prevents the additional mounting elements to be accessed from the outside of the door fitting system in the position mounted on the door leaf.

[0021] According to a preferred embodiment, the actuating element has a guiding lug, particularly inserted into the undercut of the guiding groove. The guiding lug can enable a guided movement of the actuating element along the guiding groove of the cover plate, particularly by being a protrusion on the cover plate-facing underside of the actuating element. The guide lug can be insertable into the guiding groove in such a way that it engages behind the undercut of the guide groove. The guiding lug can comprise a guiding nose protruding away from the main body of the guiding lug. This guiding nose can engage behind the undercut. The guiding lug, particularly the guiding nose, can interact with the guiding groove in order to prevent a forcible removing of the actuating element for the guiding groove and the cover plate.

[0022] The additional mounting portion can be provided with a, particularly spring loaded, return means to return the actuating element to a neutral position. The return means can act upon the actuating element as soon as it leaves the predefined neutral position, for example if the actuating element is pivoted along the guiding groove, in order to apply a return force to bring the actuating element back in the neutral position if not in use, for example when an operator releases the actuating element.

[0023] In a preferred embodiment, the additional mounting portion is provided with a limiting means for limiting a range of movement of the actuating element. The additional mounting portion can limit the range of movement of the actuating element, particularly along the guiding groove of the cover plate, with the limiting means. In this way, the limiting means can prevent an unrestricted movement of the actuating element and thus prevent any destructive manipulation of the actuating element, for example, preventing the actuating element from being dislodged out of the guiding groove.

[0024] Elements facing away from the first side of the at least one cover plate, particularly rosette modules and / or actuating elements, can be provided with sloped outer bodies having smooth continuous outer surfaces, particularly inclined downwards in a position fitted to a door leaf, to prevent attachment of a ligature. Smooth continuous outer surfaces can prevent any sharp external edges and thus protect an operator against injuries by hitting such edges. Furthermore, sloped outer bodies having smooth continuous outer surfaces, which in a position of the system fitted to a door leaf incline downwards, do not provide any possibility to attach or secure a ligature and thus enhance the safety of the modular door fitting system.

[0025] The object of the present invention is also achieved by a modular door fitting system. The inventive modular door fitting system comprises at least one cover plate according to any one of the described embodiments. In this respect the features and advantages described with respect to the cove plate also apply to the modular fitting system.

[0026] In an embodiment, the modular door fitting system comprises a first cover plate for mounting on a first side of a door leaf with a first side facing away from the door leaf and a second side facing towards the door leaf, and a second cover plate for mounting on a second side of a door leaf with a first side facing away from the door leaf and a second side facing towards the door leaf. The modular door fitting system comprises fixing means for fixing the cover plates to each other through the door leaf, wherein at least one of the first or second cover plates has a mounting portion for mounting an accessory, particularly a rosette module and / or an actuating element, on the first side of the at least one cover plate, and at least one accessory mountable on the mounting portion by mounting elements actuatable only from the second side of the at least one cover plate.

[0027] By fixing the cover plates to each other through the door leaf with fixing means, they are directly connected to each other rather than just fixed to the door leaf. In this way, the first cover plate can act as a securing plate to secure the second cover plate on the first side of the door leaf, while the second cover plate can act at the same time as a securing plate for securing the first cover plate on the second side of the door leaf. The fixing of the first and second cover plate to each other with fixing means can enable the door fitting system to resist applied forces and torques, which would loosen cover plates of conventional fitting systems, without loosening the cover plate or generating gaps between the cover plates and the door leaf.

[0028] Furthermore, both of the at least first cover plate and the second cover plate can each comprise at least one rosette module. Still furthermore, both of the at least first cover plate and the second cover plate can each comprise at least one actuating element.

[0029] In a preferred embodiment, security screws are used as fixing means. Security screws can feature special heads that make them significantly harder to remove, particularly requiring special tools other than flathead, Phillips, Allen or Torx screwdrivers to tighten or loosen, and / or more resistant to pressure or wear.

[0030] In a further preferred embodiment, at least four fixing means are used for fixing the cover plates to each other through the door leaf. At least one fixing means can be arranged in each corner of one of the first or second cover plates using the receptacles of the cover plates.

[0031] According to an embodiment of the modular door fixing system, the rosette module is a lock rosette, a turner rosette, an indicator rosette, a turner-indicator rosette, and / or a blank rosette. A lock rosette can be a rosette which allows the insertion of a key, in particular the lock rosette can be arranged on top of a part of the locking cylinder of the door leaf. A turner rosette can comprise a lock knob to act on the locking mechanism of the door leaf. An indicator rosette can comprise an indicator for indicating whether the locking mechanism of the door leaf is in its closed or open position. A turner-indicator rosette can comprise the features of a turner rosette and an indicator rosette.

[0032] Furthermore, each cover plate can have an additional mounting portion for mounting an actuating element.

[0033] The object described above is further achieved with a method for mounting the above described modular door fitting system, whereby the at least one accessory is mounted on the mounting portion by placing it on the first side of the at least one cover plate above the mounting portion and actuating the mounting elements from the second side of the cover plate, thereby mounting the accessory to the at least one cover plate, the first cover plate is then placed on a first side of the door leaf with its second side facing towards the door leaf, the second cover plate is placed on an opposite second side of the door leaf with its second side facing towards the door leaf, the fixing means are inserted in the door leaf, and the fixing means are fixed to the first cover plate and the second cover plate, thereby fixing the cover plates to each other through the door leaf. In particular, the fixing means are inserted into the door leaf through the first or second cover plate.

[0034] By being mounted in this way, the modular door fitting system can prevent tampering from at least one side of a door leaf in an anti-ligature proof way.

[0035] The features described in connection with the modular door fitting system according to the invention can be used individually or in combination with the method for mounting. This results in the same advantages that have already been described.

[0036] In a further embodiment of the method, rosette modules can be mounted on all mounting portions by the mounting elements and / or actuating elements can be mounted on all additional mounting portions by additional mounting elements actuatable only from the second side of the respective cover plate before fixing the first cover plate and the second cover plate to each other. By mounting rosette modules and / or actuating elements to all mounting portions or additional mounting portions with mounting elements or additional mounting elements, which can only be actuated from the second side of the respective cover plate, all means of the fitting system for operating the door can be mounted to the cover plates in a tamper-proof way, preventing the loosening of from the outside of the door after fixing the cover plates to each other.

[0037] In the following embodiments, further examples of the invention are explained in more detail based on the attached drawings. The figures show: Fig. 1a modular door fitting system in the position as mounted on a not shown door leaf, Fig. 2a frontside and a backside view of a cover plate according to Fig. 1, Fig. 3a frontside view of a cover plate without a mounted rosette module and several types of rosette modules, Fig. 4a frontside view of the second cover plate with a turner rosette and an actuating element according to Fig. 1, Fig. 5a cover plate without a mounting portion, Fig. 6a frontside, a backside and a detailed view of a cover plate with an additional mounting portion, Fig. 7a detailed view of a cover plate with an additional mounting portion with a different return means, Fig. 8a bottom, a side and a detailed view of an actuating element, and Fig. 9a frontside and a backside view of a cover plate with a different additional mounting portion.

[0038] A modular door fitting system 1 according to the invention is shown in Fig. 1 in a position as mounted on a door leaf (not shown).

[0039] The modular door fitting system 1 comprises a first cover plate 2, which faces with its first side 3 towards the observer in Fig. 1. This first cover plate 2 is mounted in such a way on a first side of the door leaf (not shown), that its second side 4 faces towards the door leaf.

[0040] Furthermore, system 1 comprises a second cover plate 5, which is mounted on a second side of the unshown door leaf. The second side 7 of the second cover plate 5, which faces towards the door leaf, is visible in Fig. 1, as the door leaf is not shown. The opposite first side 6 of the second cover plate 5 faces away from the door leaf.

[0041] In the displayed example of the invention, neither the first cover plate 2 nor the second cover plate 5 are directly fixed to the door leaf. Rather, the fixing means 8 are used for fixing the cover plates 2, 5 to each other through the door leaf. These four fixing means 8 are located at each corner of the cover plates 2, 5 and extend through the door leaf without being directly fixed to it. The fixing means 8 shown in Fig. 1 are security screws with special heads that make them significantly more difficult to remove without the suitable special tools.

[0042] The fixing means 8 are inserted in the first cover plate 2 in such a way that they extend through the door leaf to the second cover plate 5, where they are screwed into flat-headed sleeve nuts 13 of the second cover plate 5 on the opposite side of the door leaf in order to fix the cover plates 2, 5 together. In this way, the cover plates 2, 5 are attached to the door leaf without being directly connected to it. In fact, the modular door fitting system 1 is fastened in the same way as a screw clamp.

[0043] In the example of Fig. 1, the first cover plate 2 and the second cover plate 5, each have at least one mounting portion 9 and / or 16 for mounting an accessory of the cover plate 2, 5, respectively. An accessory may be a rosette module 10. Another accessory may be an actuating element 17.

[0044] In the example of Fig. 1, the first cover plate 2 and the second cover plate 5 each have a mounting portion 9 for mounting a rosette module 10 on the first side 3, 6 of the respective cover plate 2, 5. The second cover plate 5 has an additional mounting portion 16 for mounting an actuating element 17. A rosette module 10 is mounted on each of these mounting portions 9. The mounting portions 9 and rosette modules 10 enable the modular door fitting system 1 to be adapted in a modular way for different applications. Each rosette module 10 can offer different options for controlling or interacting with the closing or locking mechanism of the door. Depending on the application, a rosette module 10 can be mounted on the first cover plate 2, which is different from the rosette module 10 mounted on the second cover plate 5. In case of Fig. 1, the rosette module 10 of the first cover plate 2 is a lock rosette 10a which allows a key to be inserted into a lock of the door, while the rosette module 10 of the second cover plate 5 is a turner rosette 10b which allows the door to be locked by turning of a knob 27. The lock cylinder of the lock for receiving the key is not shown in this figure.

[0045] In any case, the rosette modules 10 are mounted by mounting elements 11 which can only be actuated from the second side 4, 7 of the respective cover plate 2, 3. The mounting elements 11 are therefore inaccessible from the first side 2, 6 of the cover plate 2, 5, thus preventing any manipulation when the system 1 is mounted on the door leaf.

[0046] Therefore, when mounting the modular door fitting system 1 the rosette modules 10 are mounted on all mounting portions 9 before mounting the cover plates 2, 5 to the door leaf using the fixing means 8. In the same way, all actuating elements 17, which are described in detail below, are mounted on all additional mounting portions 16 using one or more additional mounting elements 22 actuatable only from the second side 4, 7 of the respective cover plate 2, 5 before mounting the cover plates 2, 5 to the door leaf using the fixing means 8.

[0047] Figure 2 shows an embodiment of an inventive cover plate 2. The frontside and backside of the first cover plate 2 of Fig. 1 are shown in more detail in Fig. 2.

[0048] As shown in Fig. 2a, the mounting elements 11 cannot be seen and cannot accessed from the first side 3 of the first cover plate 2. Rather, the heads of the screws utilized as mounting elements 11 in this example are only accessible from the second side 4. The heads of the mounting elements 11 thus face the door leaf together with the second side 4 when mounted to the door leaf. As a result, the door leaf blocks access to the mounting elements 11, which therefore cannot be loosened in the mounted position of the modular door fitting system 1.

[0049] Furthermore, receptacles 12 of the cover plate 2 are shown in Fig. 2. The receptacles 12 of the cover plate 2 are used to insert the fixing means 8 in order to fix the cover plate 2to the door leaf. Receptacles 12 are realized as countersunk bores with a chamfer on the first side 3, 6. The fixing means 8 and the flat-headed sleeve nuts 13 can thus sit flush with the surface of the first side 3, 6 of the cover plate 2, 5.

[0050] Furthermore, the receptacles 12 are provided with a hexagonal cross-section on their end on the second side 4, 7, which allows the receptacles 12 to receive, in particular, flat-headed sleeve nuts 13 with a corresponding hexagonal section, while at the same time preventing any rotation of these flat-headed sleeve nuts 13.

[0051] Moreover, the outer edges of the cover plate 2 is provided with a chamfer. Thus, it does not provide a possible attacking point to secure a ligature to the cover plate.

[0052] Another cover plate 5 is shown in Fig. 6. The cover plate of Fig. 6 additionally comprises an actuating element 17. The cover plate 5 is also provided with identical receptacles 12, as shown in Fig. 2. However, in the embodiment shown in Fig. 6, these receptacles 12 of the cover plate 5 are used to receive flat-headed sleeve nuts 13, which, in combination with the fixing means 8, are used to fix the cover plates 2, 5. By providing the different cover plates 2 and 5 with identical receptacles 12, the position of the cover plates 2, 5 can be interchanged depending on the application, without changing the orientation of the fixing means 8 relative to the sides of the door leaf or requiring differently constructed first and second cover plates.

[0053] Fig. 3 shows the cover plate 2 with various rosette modules 10 not mounted on the first cover plate 2.

[0054] The mounting portion 9 comprises a mounting plane 9a. The mounting plane 9a is recessed relative to the first side 3 of the first cover plate 2. When the rosette module 10 is mounted to the mounting portion 9, the mounting plane 9a facing away from the door leaf lies against the mounting surface of the rosette module facing towards the door leaf. Through the recessing of the mounting plane 9a, the mounting portion 9 provides a circumferential step surrounding the rosette module 10. Thus, the rosette module 10 can sit partially inside the first cover plate 2. This positioning of the rosette module 10 prevents external access to the interface between the rosette module 10 and the first cover plate 2, as this interface lies below the surface of the first side 3. This prevents the rosette module 10 from being pried out, as no attacking point is accessible for tools. In addition, no ligature can be shoved in the interface between the rosette module 10 and the first cover plate 2.

[0055] Moreover, mounting portion 9 has two alignment lugs 14 oriented opposite to each other in the recessed mounting plane 9a of mounting portion 9. These alignment lugs 14 are used for aligning the rosette module 10 and the mounting portion 9. The rosette module 10 has two notches 15 each corresponding to one of the alignment lugs 14, as shown in Fig. 3b.

[0056] Besides aligning of the rosette module 10 and the mounting portion 9, the interacting alignment lugs 14 and notches 15 can absorb forces and torques applied to the rosette module 10 and dissipate them into the cover plate 2. The alignment lugs 14 and notches 15 can thus protect the mounting elements 11 from these forces and torques and prevent the mounting elements 11 from shearing off.

[0057] In order to be able to fix the rosette module 10 to the cover plate 2 after it has been mounted on the mounting portion 9 by placing it on the first side 3 of the cover plate 2 onto the mounting portion 9, the mounting portion 9 is provided with through-holes 23 through which the mounting elements 11 can be inserted into the rosette module 10 from the second side 4. The rosette module 10 is provided with threaded holes 25 for receiving the mounting elements 11 which extend through the first cover plate 2 and into which the mounting elements 11 can be screwed. The threaded holes 25 are arranged in the rosette module 10 in such a way that they do not pass through the surface facing away from the first cover plate 2 when mounted.

[0058] In the center of the mounting portion 9 there is an opening 24 through the first cover plate 2. This opening 24 makes it possible to reach through the first cover plate 2 into the interior of the door leaf. In this way, a locking mechanism or a latching mechanism located inside the door leaf can be accessed by or through the rosette module 10a.

[0059] A lock rosette 10a, as shown in Fig. 3b, allows a key to be inserted into a lock of the door leaf or receives a lock cylinder of a lock, thus enabling the door to be locked and unlocked by key. A cylinder hole 26 for receiving a part of the lock cylinder of the door lock is centrally arranged in the lock rosette 10a.

[0060] A turner rosette 10b, as shown in Fig. 3c, allows the door to be locked and unlocked by turning of a knob 27.

[0061] An indicator rosette 10c, as shown in Fig. 3d, comprises an indicator with an indication window 28 for indicating whether the locking mechanism of the door leaf is in its closed or open position.

[0062] A turner-indicator rosette 10d, as shown in Fig. 3e, also allows the door to be locked and unlocked by turning of a knob 27. It further comprises an indicator with an indication window 28, which simultaneously indicates whether the locking mechanism of the door leaf is in its closed or open position. For example, each of the locking windows shows a different color according to the position of the lock. A white color shown in the indicator window indicates an unlocked position of the lock, a red color shown in the indicator window indicates a locked position of the lock.

[0063] In addition to these movable parts including rosette modules 10, the rosette module 10 may be a blank rosette 10e as shown in Fig. 3f. The blank rosette 10e seals the opening 24 and thus prevents any access to the interior of the door leaf from the first side 3 of the first cover plate 2.

[0064] All rosette modules 10 are provided with sloped outer bodies having smooth continuous outer surfaces, which incline downwards when fitted to a door leaf. This prevents any suitable point for attachment of a ligature.

[0065] Fig. 4 and Fig. 7 show the flat-headed sleeve nuts 13 for receiving the fixing means 8 through the door leaf in the cover plate 5. In Fig. 4 the flat heads of the sleeve nuts 13 sitting in the receptacles 12 of the second cover plate 5 are clearly visible. These flat heads do not allow the use of any tools to loosen the sleeve nuts 13.

[0066] In Fig. 7 the threaded bores of said flat-headed sleeve nuts 13 for screwing in a thread of one of the fixing elements 11 can be seen. These threaded bores are located in a cylindrical section of the flat-headed sleeve nuts 13. Additionally, each flat-headed sleeve nut 13 is provided with a hexagonal section sitting in the part of the receptacles 12 with a hexagonal cross-section. This prevents the flat-headed sleeve nuts 13 from rotating in the receptacles 12.

[0067] The second cover plates 5 of Fig. 4, Fig. 6, Fig. 7 and Fig 9 are provided with an additional mounting portion 16. Actuating elements 17 can be mounted on these additional mounting portions 16 by means of the additional mounting elements 22 which can be actuated only from the second side 4, 7 of the cover plate 5, as already described above.

[0068] The actuating element 17 can be a latch handle 17a, which can provide an easy way to actuate the latching mechanism by pivoting the latch handle 17a relative to the cover plate 5 in addition to providing an easy way to actuate the door leaf in order to open or close the door.

[0069] Alternatively, the actuating element 17 can be a pull handle 17b, which can be easily grabbed and thus provides a way to actuate the door leaf by pivoting it in order to open or close the door.

[0070] The actuating element 17 has an elongated shape converging in diametral opposite rounded tips. The actuating element 17 has a recessed area on each of its long sides, which allows the actuating element 17 to be gripped easily and securely without providing attachment points for a ligature. The body of the actuating element 17 is sloped with smooth continuous outer surfaces, which incline downwards when fitted to a door leaf.

[0071] The cover plate 5 of Fig. 4, Fig. 6 and Fig. 8 comprises an additional mounting portion 16 with a guiding groove 18 for guiding the pivoting movement of the latch handle 17a along the surface of the first side 6 of the cover plate 5.

[0072] The latch handle 17a has a guiding lug 19. This guiding lug 19 is inserted into the guiding groove 18 when mounting the latch handle 17a to the second cover plate 5. The guiding lug 19 extends foot-like from the main body of the latch handle 17a towards the cover plate 5 in order to reach into the guiding groove 18 in the mounted position.

[0073] While the end of the latch handle 17a with the guiding lug 19 is free and can move inside the guiding groove 18, the opposite end of the latch handle 17a is fixed to the additional mounting portion 16 of the cover plate 5 by means of an additional mounting element 22. The movement of the latch handle 17a is thus limited to a pivoting movement around the additional mounting element 22.

[0074] To improve the guidance of the latch handle 17a and to prevent the end with the guiding lug 19 from being lifted out of the guiding groove 18, the guiding groove 18 has an undercut 34 on one flank.

[0075] The opposite flank of the guiding groove 18 comprises a gradually rising profile rather than a sharp edge as shown in Fig. 8c. This prevents a ligature from being attached to the gradually rising opposite flank.

[0076] Guiding lug 19 comprises a guiding nose 33 protruding away from the main body of the guiding lug 19 along the longitudinal axis of the latch handle 17a, as shown in Fig. 8. The guiding lug 19 is inserted in such a way into guiding groove 18 that it engages behind the undercut 34 of guiding groove 18. The guiding lug 19 with its guiding nose 33 fills the entire width of the guiding groove 18 so that no surface is provided to which a ligature could be attached.

[0077] Fig. 5 shows a blank cover plate 5a, which can be used in a modular door fitting system 1 according to the invention in combination with a cover plate 2 with a mounting portion 9 and a rosette module 10. The blank cover plate 5a can be used as an alternative to a cover plate as shown in Fig. 3a with a blank rosette 10e mounted on the mounting portion 9. The blank second cover plate 5a can be used as a push plate to push the door leaf open.

[0078] As can be seen in Fig. 6, the mounting portion 9 of the cover plate 5 is constructed in the same way as described as in relation to Fig. 3 and the mounting portion 9 of the cover plate 2.

[0079] A shaft 32 extends from the first side 6 to the second side 7 of the cover plate 5. The shaft 32 is part of the actuating element 17, either integral or fixed to it, and thus rigidly connected to the actuating element 17.

[0080] The additional mounting element 22 is used to pivotally mount the actuating element 17 to the additional mounting portion 16. This additional mounting element 22 is formed by a retaining ring which is fixed to the shaft 32 from the second side 7.

[0081] The additional mounting portion 16 in the embodiment of Fig. 6 is provided with a spring loaded return means 20, which returns the actuating element 17 to the neutral position shown in Fig. 6a after being pivoted out of it.

[0082] The spring loaded return means 20 is shown in Fig. 6c, which shows the additional mounting portion 16 on the second side 7 after the cover 36 shown in Fig. 6b has been removed. The return means 20 is a coil spring wound around the shaft 32. The cover 36 connects the shaft 32 and the return means 20 in such a way that the free end of the return means 20 moves together with the rotation of the shaft 32. The opposite end of the return means 20 rests against a lug 29 of the second cover plate 5 in such a way that it cannot rotate in at least one direction with the shaft 32. When the actuating element 17 is pivoted away from its neutral position, the shaft 32 rotates (counterclockwise in Fig. 6c) and the return means 20, which acts as a torsion spring, is tensioned. When the actuating element 17 is released, the tension of the return means 20 is released and the actuating element 17 returns to its neutral position.

[0083] Furthermore, the additional mounting portion 16 is provided with a limiting means 21 for limiting the range of movement of the actuating element 17. This limiting means 21 comprises a limiting nose 30 fixed to the shaft 32. This limiting nose 30 rotates together with the shaft 32. The movement range of the limiting nose 30 and thus of the shaft 32 and the actuating element 17 is limited by the dimensions of a limiting opening 31 of the additional mounting portion 16 in which the limiting nose 30 is located. The radial edges of the limiting opening 31 constitute mechanical stops for the limiting nose 30 which abuts against these edges and thus prevents further movements of the limiting nose 30 and thus of the actuating element 17 in the respective circumferential direction.

[0084] While the arrangement shown in Fig. 6 ensures a return of the actuating element 17 to the neutral position when viewed from the second side 7 in the clockwise direction, the arrangement can also be converted to an anticlockwise return by repositioning the return means 20 inside the cover 36 and the limiting nose 30 inside the limiting opening 31. In this way, a right-hand fitting can be converted into a left-hand fitting. For this purpose, cover plate 5 has a further lug, which is not used in Fig. 6c, against which the free end of the return means 20 can then rest.

[0085] Fig. 7 shows a different embodiment of the additional mounting portion 16. Similarly to the additional mounting portion 16 of Fig. 6, the shaft 32 of the actuating element 17 extends from the first side 6 to the second side 7 of the cover plate 5.

[0086] An additional mounting element 22 is used to pivotally mount the actuating element 17 to the additional mounting portion 16. This additional mounting element 22 is formed by a retaining ring which is fixed to the shaft 32 from the second side 7. This mounting element 22 also rigidly fixes one end of the return means 20 and the limiting means 21 to the shaft 32.

[0087] The other end of the return means 20 is fixed to a lug 29 of the cover plate 5 by hooking around it. The spring loaded return means 20 is a watch spring arranged around the shaft 32. When the actuating element 17 is pivoted, and thus the shaft 32 is rotated, the return means 20 is tensioned in the same manner as described in relation to Fig. 6. When the actuating element 17 is released, the tension of the return means 20 is released as well, forcing the actuating element 17 to return to its neutral position.

[0088] The limiting means 21 for limiting the range of movement of the actuating element 17 is provided by a disk-like stop plate having a cutout. The limiting means 21 is arranged such that the lug 29 is positioned in this cutout of the limiting means 21. The lug 29 thus constitutes a mechanical stop for the limiting means 21 when one of the edges of the cutout abuts against the lug 29. The movement range of the limiting means 21 and thus of the actuating element 17 is limited by the dimensions of the cutout.

[0089] Fig. 9 shows a cover plate 5b with a pull handle 17b mounted on the additional mounting portion 16. The construction of the additional mounting portion 16 differs from the additional mounting portions 16 of Fig. 6 and Fig. 7 in that it comprises a row of equally spaced through-holes 35. This arrangement allows for a rigid and resilient mounting of the pull handle 17b on the additional mounting portion 16.

[0090] The pull handle 17b also sits in a mounting plane that is recessed with respect to the first side 6 of cover plate 5. The recessed mounting plane is not visible in Fig. 9a.

[0091] In order to mount the pull handle 17b to the additional mounting portion 16 of the second cover plate 5, additional screw-like mounting elements 22 are inserted in the through-holes 35 of the additional mounting portion 16 and fastened to corresponding threaded holes in the backside of the pull handle 17b facing toward the cover plate 5.LIST OF REFERENCES

[0092] 1system 2first embodiment cover plate 3first side 4second side 5second embodiment cover plate 5athird embodiment cover plate 5bfourth embodiment cover plate 6first side 7second side 8fixing means 9mounting portion 9amounting plane 10rosette module 10alock rosette 10bturner rosette 10cindicator rosette 10dturner-indicator rosette 10eblank rosette 11mounting element 12receptacle 13flat-headed sleeve nut 14alignment lug 15notch 16additional mounting portion 17actuating element 17alatch handle 17bpull handle 18guiding groove 19guiding lug 20return means 21limiting means 22additional mounting elements 23through-hole 24opening 25threaded hole 26cylinder hole 27knob 28indication window 29lug 30limiting nose 31limiting opening 32shaft 33guiding nose 34undercut 35through-hole 36cover

Claims

1. Cover plate (2, 5) for mounting on a first side of a door leaf with a first side (3) facing away from the door leaf and a second side (4) facing towards the door leaf, characterized in that a mounting element (11, 22) for mounting of at least one accessory of the cover plate, particularly a rosette module (10) and / or an actuating element (17), are actuatable only from the second side.

2. Cover plate according to claim 1, wherein the cover plate (2, 5) has at least one mounting portion (9, 16) comprising a mounting plane (9a) for mounting the accessory (10, 17) on the first side (3, 6) of the cover plate (2, 5), characterized in that the mounting plane (9a) is recessed relative to the first side (3, 6) of the cover plate (2, 5).

3. Cover plate (2, 5) according to claim 1 or 2, characterized in that the mounting portion (9) has at least one alignment element (14, 15) for aligning the accessory (10, 17) and the mounting portion (9, 16), in particular an alignment lug (14) or an alignment notch (15).

4. Cover plate (2, 5) according to claim 3, characterized in that the alignment element (14, 15) of the mounting portion is arranged on the mounting plane (9a).

5. Cover plate (2, 5) according to any one of the preceding claims, comprising a rosette module (10) wherein the rosette module (10) is mountable on the mounting portion (9) by the mounting elements (11), wherein the mounting elements (11) are actuatable only from the second side (4, 7) of the cover plate (2, 5).

6. Cover plate (2, 5) according to any one of the preceding claims, characterized in that the cover plate (2) is provided with receptacles (12) for inserting fixing means (8) for fixing the cover plate (2, 5) to a door leaf.

7. Cover plate (2, 5) according to claim 6, characterized in that the cover plate (2) is provided with flat-headed sleeve nuts (13) and / or threaded sockets for receiving the fixing means (8), particularly screws or tread rods.

8. Cover plate (2, 5) according to any one of the preceding claims, characterized in that the cover plate (2, 5) comprises an additional mounting portion (16) for mounting an actuating element (17), particularly a latch handle (17a) and / or a pull handle (17b).

9. Cover plate (2, 5) according to claim 8, characterized by an actuating element (17) mountable on the additional mounting portion (16) by at least one additional mounting element (22), wherein the additional mounting element is actuatable only from the second side (4, 7) of the cover plate (2, 5).

10. Cover plate (2, 5) according to claim 8 or claim 9, characterized in that the additional mounting portion (16) comprises a guiding groove (18) for guiding the, particularly pivoting, movement of the actuating element (17) along the cover plate (2, 5).

11. Cover plate (2, 5) according to claim 10, characterized in that the guiding groove (18) comprises an undercut on one flank.

12. Cover plate (2, 5) according to any one of claims 9 to 11, characterized in that the actuating element (17a) has a guiding lug (19), particularly inserted into the undercut of the guiding groove (18).

13. Cover plate (2, 5) according to any one of the claims 8 to 12, characterized in that the additional mounting portion (16) is provided with a, particularly spring loaded, return means (20) to return the actuating element (17a) to a neutral position.

14. Cover plate (2, 5) according to any one of the claims 8 to 13, characterized in that the additional mounting portion (16) is provided with a limiting means (21) for limiting a range of movement of the actuating element (17).

15. Cover plate (2, 5) according to any one of the preceding claims, characterized in that elements facing away from the first side of the at least one cover plate, particularly the rosette module (10) and / or the actuating element (17), are provided with sloped outer bodies having smooth continuous outer surfaces, particularly inclined downwards in a position fitted to a door leaf, to prevent attachment of a ligature.

16. Modular door fitting system (1) comprising at least one cover plate (2, 5) according to any one of the preceding claims, wherein the modular door fitting system (1) comprises a first cover plate (2) for mounting on a first side of a door leaf with a first side (3) facing away from the door leaf and a second side (4) facing towards the door leaf, and a second cover plate (5) for mounting on a second side of a door leaf with a first side (6) facing away from the door leaf and a second side (7) facing towards the door leaf, characterized by fixing means (8) for fixing the cover plates (2, 5) to each other through the door leaf, wherein at least one of the first or second cover plates (2, 5) has at least one mounting portion (9, 16) for mounting an accessory (10, 17), particularly a rosette module (10) and / or an actuating element (17), on the first side (3, 6) of the at least one cover plate (2, 5), and at least one accessory (10, 17) mountable on the mounting portion (9, 16) by mounting elements (11, 22), wherein the mounting elements (11, 22) are actuatable only from the second side (4, 7) of the at least one cover plate (2, 5).

17. Modular door fitting system (1) according to claim 16, characterized in that the accessory is a rosette module (10), wherein the rosette module (10) is a lock rosette (10a), a turner rosette (10b), an indicator rosette (10c), a turner-indicator rosette (10d), and / or a blank rosette (10e).

18. Modular door fitting system (1) according to any one of claims 16 or 17, characterized in that at least one of the first cover plate (2) and / or second cover plate (5) comprises an actuating element (17), wherein the actuating element (17) is a latch handle (17a) or a pull handle (17b).

19. Method for mounting a modular door fitting system (1) according to any one of claims 16 to 18 on a door leaf, comprising mounting the at least one accessory (10, 17) on the mounting portion (9, 16) by placing the accessory (10, 17) on the first side (3, 6) of the at least one cover plate (2, 5) onto the mounting plane (9a), actuating the mounting elements (11, 22) from the second side (4, 7) of the cover plate (2, 5), thereby mounting the accessory (10, 17) to the at least one cover plate (2, 5), placing the first cover plate (2) on a first side of the door leaf with its second side (4) facing towards the door leaf, placing the second cover plate (5) on an opposite second side of the door leaf with its second side (7) facing towards the door leaf, inserting the fixing means (8) in the door leaf, and the fixing means (8) are fixed to the first cover plate (2) and the second cover plate (5), thereby fixing the cover plates (2, 5) to each other through the door leaf.

20. Method according to claim 19, characterized by that rosette modules (10) are mounted on the mounting portions (9) by the mounting elements (11) and / or actuating elements (17) are mounted on the additional mounting portions (16) by additional mounting elements (22), wherein the mounting elements (11) and the additional mounting elements (22) are actuated only from the second side (4, 7) of the respective cover plate (2, 5) before fixing the first cover plate (2) and the second cover plate (5) to each other.

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