EP4124707A1

EP4124707A1 - Door fitting assembly and flip-up door locking system

Info

Publication number: EP4124707A1
Application number: EP21188196.6A
Authority: EP
Inventors: Lau Ziegler
Original assignee: Dormakaba Danmark
Current assignee: Dormakaba Danmark
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2023-02-01

Abstract

The invention relates to a door fitting assembly (1) of a door, the door fitting assembly (1) comprising a door rosette (4) into which a rotating shaft (3) is insertable, wherein the door rosette (4) comprises a rotation-limiting portion (5), and a rotation plate (8) arranged in the door rosette (4), wherein the rotation-limiting portion (5) stops the rotation of the rotation plate (8) at least in a first circumferential direction (12), and wherein the door fitting assembly (1) comprises fixing means (35) for fixing a handle rosette (32) supporting the door handle (2) in a reversibly dismountable manner.

Description

The invention concerns a door fitting assembly and a flip-up door locking system, especially for a bathroom door or toilet door.
Conventional flip-up door locking systems are commonly provided on an inner side of a bathroom door such that a user can lock the door from the inside. To do so, a door handle of a flip-up door locking system is turned, from an installed regular position in which the door handle, in the case of a lever handle, is horizontal to the ground, upwards. For unlocking the door, the door handle is returned to the regular position. In these common flip-up door locking systems, a rotation limitation is achieved by an element rotatably fixed to a shaft connected to the door handle. A common problem in these conventional solutions persists in that the repeated abutting of the element against a stop wears down the element and the stop. Additionally or alternatively, the door handle itself gets scratched, especially in public toilets. Therefore, conventional flip-up door locking systems are commonly unreliable and provide only a short lifetime.
An object of the present invention is to provide a door fitting assembly of a door and a flip-up door locking system which can reliably lock a door while also having a high lifetime at least partially.
This object is solved by the features of the independent claim. The dependent claims contain advantageous embodiments of the present invention.
Present invention discloses a door fitting assembly of a door, especially for transmission of a rotational movement about an axis of a rotation of a door handle to a locking system via a rotating shaft. In the foregoing and the following, the term "door handle" with regard to the present invention can mean a lever handle, a doorknob, or the like.
The door fitting assembly of the present invention comprises a door rosette into which the rotating shaft is insertable. The door rosette comprises a rotation-limiting portion and a rotation plate arranged in the door rosette, wherein the rotation-limiting portion stops the rotation of the rotation plate at least in a first circumferential direction. Preferably, the rotation plate is adapted to be rotated by the rotating shaft.
The door fitting assembly comprises fixing means for fixing a handle rosette supporting the door handle in a reversibly dismountable manner. So, the handle rosette is preferably fixable in a reversibly dismountable manner to the door rosette. For that reason, the door rosette preferably comprises the fixing means which are preferably built as screw holes for accommodating screws. The screws fixe the handle rosette to the door rosette. Since the handle rosette together with the door handle are releasably fixed and dismountable, it is possible to dismount the unit of the handle rosette and the door handle and exchange it, e. g. if the door handle is demolished. This can especially be the case if the assembly is used in a public toilet.
Since the invention provides a system divided into to the door fitting assembly on the one hand and the unit of the handle rosette and of the door handle on the other hand, it is only necessary to exchange the unit, while the door fitting assembly can remain mounted. This saves costs and spare parts.
Preferably, the door fitting assembly comprises a shaft accommodating element connectable to the shaft in a rotational fixed manner, wherein the shaft accommodating element is rotationally supported in the door rosette. Preferably, the shaft accommodating element is adapted to hold the shaft in a tight manner, so that the door handle must not and does not protrude through the door rosette.
Preferably, the door rosette has an outer side, wherein the outer side outside is facing away from the door when mounted, wherein the outer side has at least one protrusion for placing the lower end of the handle rosette. The at least one protrusion is preferably adapted to lie against the handle rosette from the inside and place the handle rosette on the outer side of the door rosette.
The rotation-limiting portion of the door rosette preferably comprises a guide track and at least one mechanical stop. Preferably, the guide track is partially circle-shaped. The rotation plate is rotatably guided on the guide track and can preferably be stopped by the at least one mechanical stop.
Preferably, the rotation-limiting portion comprises a first mechanical stop and a second mechanical stop. Preferably, the rotation plate is rotatably guided on the guide track between the two mechanical stops.
Preferably, the door rosette is built with the at least one mechanical stop in one piece; preferably with the first and the second mechanical stop in one piece.
Preferably, the door fitting assembly comprises a coupling mechanism comprising a reception part for connecting with the rotating shaft in a rotatably fixed manner and/or an elastic element coupled with the rotation plate for elastic torque transmission.
The elastic element is preferably connected with the reception part. The elastic element of the coupling mechanism allows the reception part to rotate relative to the rotation plate in a first circumferential direction against the elastic force of the elastic element, when the rotation plate abuts the first mechanical stop. In addition or alternatively thereto, the elastic element of the coupling mechanism allows the reception part to rotate relative to the rotation plate in the second circumferential direction against the elastic force of the elastic element, when the rotation plate abuts the second mechanical stop. In other words, the coupling mechanism provides an elastic torque transmission of a rotational movement of the insertable shaft to the rotation plate.
Preferably, the elastic element is adapted to rotate with the rotation of the rotation plate, wherein the elastic element is tensed when the reception part is rotated relative to the rotation plate when the rotation plate abuts the at least one mechanical stop.
The door fitting assembly of the present invention can have the advantage that a rotation of the rotating shaft of the door handle can be limited by the rotation plate via an elastic torque transmission such that a wearing down of the rotation plate or the door fitting assembly as a whole over time is prevented. Therefore, the door fitting assembly of the present invention preferably provides a reliable mechanism for limiting a rotation of a door handle, while also having a high lifetime.
Preferably, the elastic element of the coupling mechanism comprises a spring element. In particular, the spring element can especially be, for example, a torsion spring or a spiral spring.
Further preferably, the reception part of the coupling mechanism comprises a ring body configured to surround and be fixable to the rotation shaft. Further preferably, the reception part comprises a hook portion projecting from the ring body, wherein the hook portion is in contact with the elastic element. In particular, the ring body of the reception part rotates with the rotating shaft and the hook portion transfers the torque from the ring body to the elastic element. This has the additional advantage that a mechanism for elastic torque transmission can be provided with a compact size.
Advantageously, the hook portion of the reception part comprises a first portion projecting radially from the ring body and a second portion projecting, from the first portion opposite to the ring body, in a direction parallel to the axis of rotation in an installed state. In other words, the second portion of the hook portion is elongated in a direction parallel to the rotating shaft, when the rotating shaft is inserted into the door rosette. This further advantageously provides a coupling mechanism for elastic torque transmission.
Preferably, the hook portion is disposed between and in contact with ends of the elastic element. In particular, the second portion of the hook portion is disposed between ends of the torsion spring as an exemplary elastic element. Thereby, the coupling mechanism and thus the door fitting assembly can be achieved in a compact manner.
In an advantageous embodiment, the rotation plate includes at least one projection portion sandwiched between the ends of the elastic element of the coupling mechanism. This provides an especially compact and reliable means for coupling the rotation plate with the elastic element. Thus, the door fitting assembly can be achieved with a compact size and a long lifetime.
Advantageously, the rotation plate comprises at least one latch mechanism. Therein, the latch mechanism latches the rotation plate along the guide track at at least one predetermined position.
Preferably, the predetermined position(s) is/are arranged so that the rotation plate is spaced apart from the at least one mechanical stop, when the rotation plate is latched at the at least one predetermined position. Thereby, the mechanical torque on the door rosette is reduced or eliminated.
Preferably, the at least one latch mechanism of the rotation plate is adapted to selectively latch the rotation plate in a first predetermined position and a second predetermined position. The first predetermined position of the rotation plate defined by the latch mechanism preferably corresponds to a first predefined position of the door handle. The first predefined position of the door handle preferably corresponds to the locked state of the door. The second predetermined position of the rotation plate defined by the latch mechanism preferably corresponds to a second predefined position of the door handle. The second predefined position of the door handle preferably corresponds to the unlocked state of the door or vice versa.
Preferably, the elastic element is untensed or only slightly tensed while the rotation plate is moved between the first and the second predetermined positions. The elastic element rotates with the rotation plate between the first and second predetermined positions. However, the elastic element is preferably tensed, when the rotation plate abuts one of the mechanical stop and a further torque is provided on the reception part.
Preferably, the at least one latch mechanism of the rotation plate is a spring-loaded ball latch. This has the advantage that a simple latch mechanism with a high lifetime can be provided for the rotation plate, thereby increasing the lifetime of the door fitting assembly.
Further preferably, the spring-loaded ball latch is disposed in the at least one projection portion of the rotation plate. Therein, the spring-loaded ball preferably latches into a groove in a rim of the door rosette. Thereby, an especially compact and reliable latching mechanism for the rotation plate can be provided, thus increasing the compactness and lifetime of the door fitting assembly.
Preferably, the position of the coupling mechanism, especially the position of the reception part and/or the elastic element, is reversibly changeable with regards to the rotation plate between a first mounting position and a second mounting position wherein the first mounting position corresponds to a left-handed installation of the door handle and the second mounting position corresponds to a right-handed installation of the door handle. Thereby, the door fitting assembly can be easily adjusted for installation of a left-handed or right-handed door handle.
Advantageously, a contact surface of the at least one mechanical stop with the rotation plate is flat on the side of the stop and the rotation plate. This provides a low surface pressure and thus a high lifetime of the door fitting assembly.
In an advantageous embodiment, at least 30%, preferably at least 50%, more preferably at least 80%, of a surface area of sidewalls of the rotation plate abut against the respective mechanical stop. This has the advantage that a wearing down of the rotation plate or the mechanical stop over time can be prevented, as well as providing a reliable rotation limitation mechanism.
The present invention also concerns a flip-up door locking system, especially for a bathroom door or a toilet door. The flip-up door locking system comprises the door fitting assembly according to any one of the foregoing advantageous embodiments. In addition, the flip-up door locking system comprises a door handle assembly with a door handle and a handle rosette. The door handle is preferably rotationally supported by the handle rosette. Preferably, the door handle assembly comprises a rotating shaft that is inserted into the door rosette of the door fitting assembly.
Preferably, the door rosette has a larger diameter and/or is more massive than the handle rosette. Preferably, "more massive" can mean that the material for the door rosette has a higher specific mass than the material for the handle rosette and/or can mean that the door rosette is heavier than the handle rosette and/or can mean that the door rosette is thicker (in direction perpendicular to the diameter) that the handle rosette.
Preferably, the door handle is connected to the shaft in a rotationally fixed manner, wherein the door handle is directly connected to the shaft and/or via the shaft accommodating element. The shaft accommodating element preferably helps to position the door handle relative to the door rosette.
Preferably, the handle is a first handle and the handle rosette is a first handle rosette, wherein the flip-up door locking system comprises a second handle and a second handle rosette to be mounted on the other side of the door. Preferably, the second handle has the same outer appearance, especially the same structure, as the first handle and/or the second handle rosette has the same outer appearance, especially the same structure, as the first handle rosette. The first and second handle can be mounted at different positions, especially at different heights. Further details, advantages, and features of preferred embodiments of the present invention are described in detail with reference to the figures.
Therein,

Fig. 1: shows an exploded view of a flip-up door locking system according to an embodiment of the present invention,
Fig. 2: shows a door-sided view of the door fitting assembly according to the embodiment of the present invention and
Fig. 3: shows selected elements of the flip-up door locking system of Figure 1 in a perspective view.

Fig. 1 shows an exploded view of a flip-up door locking system 100 and, in particular, of a door fitting assembly 1 of the flip-up door locking system 100 according to an embodiment of the present invention. In addition to the door fitting assembly 1, the flip-up door locking system 100 comprises a door handle 2 and a handle rosette 32. The flip-up door locking system 100 can comprise a rotating shaft 3. The handle rosette 32 is placed between the door rosette 4 and the door handle 2.
The door fitting assembly 1 of the flip-up door locking system 100 comprises a door rosette 4 which is brought into contact with a door in an installed state. Fig. 2 shows a door-sided view of the door fitting assembly 1, especially of the door rosette 4 of the door fitting assembly 1. As can be seen therein, Fig. 2 also shows the door handle 2 of the flip-up door locking system 100. In particular, Fig. 2 shows an installed state of the door handle 2 and the rotating shaft 3.
Further, the door rosette 4 (see also Fig. 2) comprises a rotation-limiting portion 5. The rotation-limiting portion 5 comprises a partially circle-shaped guide track 6 and a first and a second mechanical stop 7, 14. In this exemplary embodiment, the guide track 6 is formed as a depression in the door rosette 4. Alternatively, the door-sided surface of the door rosette 4 may be flat.
The first and the second mechanical stop 7, 14 are built integral within the door rosette 4. Fixing screws 28 for fixing the door rosette 4 to the door are spaced apart from the first and second mechanical stop 7, 14. Thereby, a mechanical torque on the fixing screws 28 is reduced or eliminated.
A rotation plate 8 of the door fitting assembly 1 is rotatably guided on the guide track 6 between the first and the second mechanical stop 7, 14. In this exemplary embodiment, the rotation plate 8 slides on the guide track 6. Alternatively, a gap between the rotation plate 8 and the guide track may be provided. Further alternatively, a bearing, for instance a ball bearing, may be provided between the rotation plate 8 and the guide track 6.
The handle rosette 32 supports the door handle 2 in a rotatable manner. The handle rosette 32 holds the door handle 2 in place via a retaining ring 34 (see Fig. 3). The door handle 2 and the door rosette 32 build a unit which can be pre-assembled.
Furthermore, the same or a similar unit, i. e. the same or a similar door handle 2 and the same or a similar handle rosette 32, can be used for the other side of the door. Therefore, the door handle 2 and the handle rosette 32 which are fixed to the door rosette 4 can be regarded as first door handle 2 and first handle rosette 32. Optionally, the flip-up door locking system 100 can comprise a second door handle and a second handle rosette as a second unit to be mounted on the other side of the door (not shown). The second unit can be similar or identical to the first unit. The second unit can be placed vertically apart from the first unit so that the second door handle is used to move a latch of a lock while the first door handle 2 is used for moving a dead bolt of the lock. This reduces stock-keeping.
The handle rosette 32 is fixed in a reversibly dismountable manner to the door rosette 4. For that reason, the door rosette 4 comprises fixing means which are built as screw holes 35 for accommodating screws 33. The screws 33 fixes the handle rosette 32 to the door rosette 4. Since the handle rosette 32 together with the door handle 2 are releasably fixed and dismountable, it is possible to dismount the unit of the handle rosette 32 and the door handle 2 and exchange it, e. g. if the door handle 2 is demolished. This can especially be the case if the flip-up door locking system 100 is used in a public toilet. Since the flip-up door locking system 100 is divided into to the door fitting assembly 1 on the one hand and the unit of the handle rosette 32 and of the door handle 2 on the other hand, it is only necessary to exchange the unit, while the door fitting assembly 1 can remain mounted. This saves costs and spare parts.
The tasks between the door rosette 4 and the handle rosette 32 are splitted. The door rosette 4 has the task to limit the rotation of the door handle 2, while the handle rosette 32 has the task to support the door handle 2. Especially since the limiting of the rotation of the door handle 2 comprises withstanding a torque, the door rosette 4 has a larger diameter than the handle rosette 32. Furthermore, the door rosette 4 can be built of a material which is more resistant to withstand a torque than the handle rosette 32. Additionally the door rosette 4 is built in a more massive way than the handle rosette 32.
The handle rosette 32 is placed on top of the door rosette 4 so that the lateral circumference 40 of the door rosette 4 is visible in the mounted state of the flip-up door locking system 100.
The door rosette 4 comprises arched protrusions 41 on the outer side of the door rosette 4. The protrusions lie against the handle rosette 32 from the inside and place the handle rosette on the outer side of the door rosette 4.
In particular, the door fitting assembly 1 of this embodiment comprises a shaft accommodating element 29 into which the rotating shaft 3 is inserted. The door handle 2 slightly protrude beyond the handle rosette 32 in the direction of the door or the door rosette 4, respectively. Therefore, the shaft accommodating element 29 is built separately to the door handle 2 and accommodates the shaft 3 in a rotational fixed manner inside the door rosette 4. For that reason, the shaft accommodating element 29 comprises a passage 36 adapted to the shape of the shaft 3. The door handle 2 also comprises a passage 37 for accommodating the shaft 3 in a rotationally fixed manner. Additionally, the door handle 2 and the shaft accommodating element 29 are connected in a rotatably fixed manner by protrusions 38 of the shaft accommodating element 29 (s. Fig. 1) and recesses 39 of the door handle 2 adapted to the protrusions 38. The shaft accommodating element 29 is rotatably supported in the door rosette 4. The shaft accommodating element 29 is rotatable within the door rosette 4, for example via sliding or via a bearing (not shown).
The rotation plate 8 limits the rotation of the door handle 2 via a coupling mechanism 9. The coupling mechanism 9 comprises a reception part 10 which is connected with the rotating shaft 3 in a rotatably fixed manner. That is, the reception part 10 of the coupling mechanism 9 rotates with the rotating shaft 3 in an inserted state of the rotating shaft (see Fig. 2).
The reception part 10 of the coupling mechanism comprises, in a ring body 15 thereof, reception part noses 30, which engage with the shaft accommodating element 29, especially with notches therein. Alternatively, the reception part 10 can be directly fixed to the rotating shaft 3.
Thereby, a rotation of the door handle 2 rotates the rotating shaft 3, the shaft accommodating element 29 and the reception part 10.
The coupling mechanism 9 further includes an elastic element 11. In this exemplary embodiment, the elastic element 11 is a torsion spring 11. Alternatively, the elastic element 11 may be a spiral spring and/or an elastic element, especially a ring, for instance made of rubber or elastic plastic.
The coupling mechanism 9 helps to maintain the door fitting assembly 1 in case of a high torque is applied. In case of a high torque the reception part 10 and the rotation plate 8 can move with regards to each other while increasing the tension of the elastic element 11. This prevents the demolishing of the door fitting assembly 1.
The rotation plate 8 further includes projection portions 19 on a door-side surface thereof. One of the projection portions 19, as can be seen in Fig. 2, is sandwiched between ends of the torsion spring 11.
The reception part 10 of the coupling mechanism 9 further includes a hook portion 16, wherein the hook portion 16 comprises a first portion 17, which projects radially from the ring body 15, and a second portion 18 projecting from the first portion 17 in a direction parallel to the axis 20 of rotation. The hook portion 16, especially the second portion 18 thereof, is disposed between the ends of the torsion spring 11. Thereby, a rotation of the door handle 2, which is transferred to the ring body 15, is transferred to the rotation plate 8 via the hook portion 16, the torsion spring 11, and the projection portion 19 of the rotation plate 8.
The door fitting assembly 1 can further include washers 26 and a slit-ring washer 27 for improved longevity thereof.
As can be seen in Fig. 2, a rotation of the reception part 10 in one of the first circumferential direction 12 or the second circumferential direction 13 rotates, via the torsion spring 11, the rotation plate 8 in one of the aforementioned circumferential directions 12, 13. The door rosette 4 further includes the first and the second mechanical stops 7, 14. Thereby, when rotated in one of the circumferential directions 12, 13, the rotation plate 8 abuts one of the mechanical stops 7, 14 with one of its sidewalls 31. For example, as shown in Fig. 2, a sidewall 31 of the rotation plate 8 abuts the first mechanical stop 7 when rotated fully in the first circumferential direction 12.
Then, when the door handle 2 is rotated further in the first circumferential direction 12, the rotation plate 8 is prevented from further rotating in the first circumferential direction 12 via the first mechanical stop 7. On the other hand, the reception part 10 can further rotate in the first circumferential direction 12, since it is not blocked by the first mechanical stop 7. Thereby, a force is enacted onto the torsion spring 11 by the hook portion 16 of the reception part 10 of the coupling mechanism 9. This allows a further rotation of the door handle 2 in the first circumferential direction 12 under tension of the torsion spring 11. When the door handle 2 is let go, the tension of the torsion spring 11 helps to return the reception part 10 and thus the door handle 2 to a predetermined position, which is shown in Fig. 2.
Further, in the above-described case, as can be seen in Fig. 2, when the door handle 2 is rotated in a second circumferential direction 13 from the position shown in Fig. 2, the rotation plate 8, via the torsion spring 11 and the reception part 10 of the coupling mechanism 9, is rotated towards the second mechanical stop 14 in the second circumferential direction 13. As can be seen in Fig. 2, the rotation plate 8 when fully rotated abuts the second mechanical stop 14, and is thereby prevented from further rotating in the second circumferential direction 13. Further, in this case, when the door handle 2 is rotated yet further in the second circumferential direction 13, the coupling mechanism 9 can only further rotate in the second circumferential direction 13 until the hook portion 16 or the torsion spring 11 abuts against the mechanical stop 14 or the tension of the spring prevents further movement. Thereby, once the rotation plate 8 abuts against the second mechanical stop 14, only a small elastic further rotation in the second circumferential direction 13 of the door handle 2 is possible. The amount of the aforementioned further rotation in the second circumferential direction 13 is equal or less to a circumferential distance d between the second circumferential sidewall 31 and the end of the torsion spring 11 or the hook portion 16.
The turning of the door handle 2 in the first and second circumferential direction 12, 13 is coupled with a dead bolt of the door (not shown) which retracts or protrudes during closing or opening (turning the door handle) of the door. Thereby, the door is locked or unlocked. Thereby, a flip-up door locking mechanism is achieved, in which the door handle 2 is in an upright position and the door is locked and in an horizontal position when the door is unlocked. The door handle 2 is connected to the lock via the shaft 3.
Alternatively, the door fitting assembly 1 can be configured such that the door handle 2 is in a position elongated towards the ground. The end positions of the door handle 2 (without tension of the elastic element 11) are predetermined based on the shape and size of the rotation plate 8. The shape and size of the rotation plate 8 is, however, not strictly limited to the example shown in Figs. 1 and 2. For instance, the size of the rotation plate 8, and thereby end position of the door handle 2 can be chosen based on spatial limitations for the door fitting assembly 1 or door handle 2.
Further, as can be taken from Fig. 2, the rotation plate 8 includes projection portions 19, denoted further with "L" and "R". In the example of Figure 2, the elastic element 11 and the reception part 10 are connected to the portion 19 denoted with "L". This position corresponds to a mounting position of a left-handed installation of the door handle. While installing the door fitting assembly 1 on the door, the position of the elastic element 11 and the reception part 10 can be changed to a position wherein the elastic element 11 and the reception part 10 are connected to the portion 19 denoted with "R". The connection is established in an analogue manner. Therefore, the projection portion 19 denoted "R" is sandwiched between the ends of the elastic element 11 and the hook portion 16 is placed between the ends of the elastic element 11. This second mounting position corresponds to a right-handed installation of the door handle.
Each of these projection portions 19 includes a latch mechanism 21 (see also Fig. 1). The latch mechanism includes a spring 22 and a ball 23, which together form a spring-loaded ball latch mechanism 21. The ball 23 of the latch mechanism 21 latches into a groove 24 in a rim 25 of the door rosette 4. Thereby, especially when installing the door fitting assembly 1 to a door, the rotation plate 8 can be latched into predetermined rotational positions via the latch mechanism 21. These different rotational positions correspond the different positions of the door handle 2 and thereby to the different states of the door, namely the locked and unlocked state. For a better hold in the positions, the latch mechanism can include several springs 22 and balls 23. The balls 23 can be placed in corresponding grooves 24. The embodiment of the Figures contains two springs 22 and two balls 23 as one example.
A first predetermined position of the rotation plate 8 defined by the latch mechanism 21 corresponds to a first predefined position of the door handle 2. The first predefined position of the door handle 2 corresponds to the locked state of the door. A second predetermined position of the rotation plate 8 defined by the latch mechanism 21 corresponds to a second predefined position of the door handle 2. The second predefined position of the door handle 2 corresponds to the unlocked state of the door or vice versa.
When the rotation plate 8 is latched in the first or the second predefined position, the rotation plate 8 is slightly spaced apart from the mechanical stop 7, 14 nearby. Thereby, the mechanical torque on the door rosette 4 is reduced or eliminated.
The elastic element is untensed or only slightly tensed while the rotation plate 8 is moved between the first and the second predetermined positions. The elastic element 11 rotates with the rotation plate 8 between the first and second predefined positions. However, the elastic element is tensed, when the rotation plate 8 abuts a mechanical stop 7, 14 and a further torque is provided on the reception part 10.
The springs 22 and the balls 23 lead the rotation plate 8 into its first and second predetermined positions when the balls 23 start to enter the grooves 24.
For installation of the flip-up door locking system 100, the screws 28 are provided.
The door rosette 4 can comprise an especially massive material, for instance iron, steel, aluminum, or titanium. The upper door rosette 32 can comprise the same material as the door rosette 4, or comprise a softer material, for instance copper, gold, or silver. In one embodiment the door rosette 4 and the handle rosette 32 are both made of an zinc alley, however the door rosette 3 is more massive than the handle rosette 32. Since the door fitting assembly 1 can be adapted to several upper door rosette 32, the door fitting assembly 1 can be installed in several existing door lock mechanism or be paired with a high variation of upper door rosettes 32.
The rotating shaft 3 can have a square-shaped cross section orthogonal to its longitudinal axis.
In addition, as can be seen in Fig. 2, a large portion of a surface area of the sidewalls 31 of the rotation plate 8 abuts against the respective mechanical stops 7, 14. Thereby, wearing down or damages to the rotation plate 8 are prevented due to a high contact surface area therebetween. In this exemplary embodiment, roughly 80% of the surface area of the sidewalls 31 abuts against the respective mechanical stops 7, 14.
In this exemplary embodiment, the sidewalls 31 of the rotation plate 8 are rounded off. Alternatively, these can comprise corners, instead of the rounded edges, such that particularly the entire sidewalls 31 of the rotation plate 8 abut against the respective mechanical stops 7, 14.

Reference signs

1: door fitting assembly
2: door handle
3: rotating shaft
4: door rosette
5: rotation-limiting portion
6: guide track
7: mechanical stop
8: rotation plate
9: coupling mechanism
10: reception part
11: elastic element
12: first circumferential direction
13: second circumferential direction
14: mechanical stop
15: ring body
16: hook portion
17: first portion
18: second portion
19: projection portion
20: axis of rotation
21: latch mechanism
22: spring
23: spring-loaded ball latch
24: groove
25: rim of door rosette
26: washer
27: slit-ring washer
28: screw
29: shaft accommodating element
30: reception part nose
31: sidewall of rotation plate
32: upper door rosette
33: screws
34: retaining ring
35: screw hole
36, 37: passage
38: protrusion
39: recess
40: lateral circumference
41: protrusion
100: flip-up door locking system
d: circumferential distance

Claims

Door fitting assembly (1) of a door, the door fitting assembly (1) comprising:
• a door rosette (4) into which a rotating shaft (3) is insertable, wherein the door rosette (4) comprises a rotation-limiting portion (5), and

• a rotation plate (8) arranged in the door rosette (4),
wherein the rotation-limiting portion (5) stops the rotation of the rotation plate (8) at least in a first circumferential direction (12),

and wherein the door fitting assembly (1) comprises fixing means (35) for fixing a handle rosette (32) supporting the door handle (2) in a reversibly dismountable manner.
Door fitting assembly (1) according to claim 1, wherein the door fitting assembly (1) comprises a shaft accommodating element (29) connectable to a shaft (3) in a rotational fixed manner, wherein the shaft accommodating element (29) is rotationally supported in the door rosette (4).
Door fitting assembly (1) according to claim 1 or 2, wherein the door rosette (4) has an outer side, wherein the outer side outside is facing away from the door when mounted, wherein the outer side has a protrusion (41) for placing the lower end of the handle rosette (32).
Door fitting assembly (1) according to any one of the foregoing claims, wherein the rotation-limiting portion (5) of the door rosette (4) comprises a guide track (6) and at least a first mechanical stop (7, 14), preferably a first and second mechanical stop (7, 14), wherein the rotation plate (8) is guided on the guide track.
Door fitting assembly (1) according to any one of the foregoing claims, wherein the door fitting assembly (1) comprises a coupling mechanism (9) wherein the coupling mechanism (9) comprises a reception part (10) for connecting with a rotating shaft (3) in a rotatably fixed manner and/or an elastic element (11), preferably connected with the reception part (10), coupled with the rotation plate (8) for elastic torque transmission.
Door fitting assembly (1) according to claim 5, wherein the reception part (10) is rotatable relative to the rotation plate (8) in a first circumferential direction (12), when the rotation plate (8) abuts the first mechanical stop (7), and/or in the second circumferential direction (13), when the rotation plate (8) abuts the second mechanical stop (14).
Door fitting assembly (1) according to claim 5 or 6, wherein the elastic element (11) rotates with the rotation of the rotation plate (8) and wherein the elastic element (11) is tensed when the reception part (10) is rotated relative to the rotation plate (8) when the rotation plate (8) abuts the at least one mechanical stop (7, 14).
Door fitting assembly (1) according to any one of the foregoing claims, wherein the rotation plate (8) comprises at least one latch mechanism (21) which latches the rotation plate (8) along the guide track (6) at predetermined positions.
Door fitting assembly (1) according to claim 8, wherein the predetermined positions are arranged so that the rotation plate (8) is spaced apart from the at least one mechanical stop (7, 14), when the rotation plate (8) is latched at the predetermined positions.
Door fitting assembly (1) according to claim 8 or 9, wherein the latch mechanism (21) of the rotation plate (8) selectively latches the rotation plate (8) in a first predetermined position and a second predetermined position, wherein the first predetermined position corresponds to a first predefined position of the door handle (2) and the second predetermined position corresponds to a second predefined position of the door handle (2).
Door fitting assembly (1) according to any one of foregoing claims wherein the position of the coupling mechanism (9), especially the position of the reception part (10) and/or the elastic element (11), is reversibly changeable with regards to the rotation plate (8) between a first mounting position and a second mounting position wherein the first mounting position corresponds to a left-handed installation of the door handle (2) and the second mounting position corresponds to a right-handed installation of the door handle (2).
Flip-up door locking system (100), especially for a bathroom door or toilet door, comprising the door fitting assembly (1) according to any one of the foregoing claims and a door handle assembly comprising a door handle (2) and a handle rosette (32), wherein the door handle (2) is rotationally supported by the handle rosette (32).
Flip-up door locking system (100) according to claim 12, wherein the door rosette (4) has a larger diameter and/or is more massive than the handle rosette (32).
Flip-up door locking system (100) according to any one of the claims 12 to 13, wherein the door handle (2) is connected to the shaft (3) in a rotationally fixed manner, wherein the door handle (2) is directly connected to the shaft (3) and/or via the shaft accommodating element (29).
Flip-up door locking system (100) according to any one of the claims 12 to 14, wherein the handle (2) is a first handle and the handle rosette (32) is a first handle rosette, wherein the flip-up door locking system (100) comprises a second handle and a second handle rosette to be mounted on the other side of the door, wherein the second handle has the same outer appearance, especially the same structure, as the first handle (2) and/or the second handle rosette has the same outer appearance, especially the same structure, as the first handle rosette.