DOOR FITTING WITH A ONE-SIDE LOCKING HANDLE

Description

[0001] The invention relates to a door fitting with a handle that can be locked on one side, with at least one rosette for engagement with a door leaf and with a shaft element for forming an operative connection with the locking mechanism of a lock unit that is incorporated in the door leaf, and wherein an adapter element is incorporated in a neck section of the handle and is received on the shaft element. STATE OF THE ART

[0002] Door fittings with a one-sided locking handle are particularly used for interior doors in buildings, such as doors to sanitary rooms. As usual, the door fittings have two handles, one on each side of a door leaf when attached to a door leaf. However, one-sided locking door fittings are designed in such a way that, while one-sided locking of one or both handles of the door fitting on just one side can be achieved using a single handle, the option of releasing the lock and using the locked handle to open the door, for example, in an emergency, must be retained on the side opposite the locking control element.

[0003] For example, EP 3 067 491 B1 discloses a door fitting with a handle that can be locked on one side. The door fitting has rosettes on both sides for opposing engagement with a door leaf, and a shaft element is provided for forming an operative connection with the locking mechanism in a lock unit incorporated into the door leaf. Both handles are accommodated on the shaft element, and an operating element for generating a locked position of at least one of the handles interacts directly with the locking mechanism of the lock unit. An actuating element protrudes from the rosette of the door fitting and can be pressed axially into the rosette along a longitudinal axis and then withdrawn from the rosette.To achieve the locking effect, the locking mechanism is designed with a split nut, with a shaft element of a first handle interacting with a first part of the nut, and a second shaft element interacting with a second handle interacting with a second part of the nut. By pushing in and pulling out the operating element, the parts of the nut can be coupled or separated again. This ensures that the actual locking mechanism can only be activated with one of the two handles.

[0004] Another door fitting with a handle that can be locked on one side is known from DE 10 2007 030 655 A1. The door fitting has an actuating element that can be rotated along its longitudinal axis to lock the handle. This locks the handle's lever movement and allows it to be released again when the actuating element is reversed.

[0005] From US 7 934 754 B2, a door fitting with an associated locking device is also known, which can be moved from an unlocked position to a locked position by manually actuating a push button accommodated in the front of the handle.

[0006] The common door fittings with a one-sided locking handle are constructed with a multitude of individual parts, making them complex to manufacture and assemble. These door fittings are prone to errors in use, and the multitude of individual parts can lead to the locking mechanism failing. Furthermore, these door fittings cannot be combined with every commercially available lock unit, as the locking mechanism or the external dimensions of the lock unit must be adapted to the specific one-sided locking door fitting. DISCLOSURE OF THE INVENTION

[0007] The object underlying the invention is to further develop a door fitting, in particular for an interior door of a building with a handle that can be locked on one side, in such a way that the door fitting with the locking means is designed simply and that locking of the handle is possible without the locking mechanism and in particular the lock unit having to be adapted to the locking means of the door fitting. Furthermore, the door fitting should be able to retain a simple and straightforward design without, in addition to the handle, separate operating elements being immediately perceived as additional components of the handle.

[0008] This object is achieved by a door fitting according to the preamble of claim 1 in conjunction with the characterizing features. Advantageous developments of the invention are specified in the dependent claims.

[0009] The invention includes the teaching that a locking means is accommodated both in or on the neck section itself and in or on the adapter element, which can be brought into a locking position by means of a manual actuation, in which the handle on the rosette can be blocked against rotation by means of the locking means.

[0010] The core concept of the invention is the integration of a locking means in the neck portion of the handle, which, depending on the design of the door fitting, forms, for example, a cylindrical body or an elongated body with an oval or rectangular cross-section as a basic component. For example, handles are known that are L-shaped and comprise a handle portion and an angled neck portion. The handle portion serves for manual operation, and the neck portion extends approximately transversely to the handle portion along the same longitudinal axis as the shaft element, which extends through the door leaf and thus also through the lock unit.

[0011] A particular advantage is the ability to lock the handle independently of the lock unit. The door fitting according to the invention can accommodate various door thicknesses, ranging from 9mm (for example, 35mm to 44mm thick), without the need for additional components or special assembly.

[0012] In the sense of the invention, a rosette forms one or more components that are mounted in, on or in front of the lock case in, on the door leaf. This means that the locking of the handle can take place on a flat rosette, for example with a thickness of 2 mm to 3 mm; the rosette can alternatively or additionally be designed as a screw rosette, a clip rosette or another type of rosette. The locking of the handle and ultimately of the locking means can also take place, for example, in a glass door lock case if the rosette or a component with the same function is integrated in the lock case housing or is designed as a component thereof, in particular for rotatably receiving the neck section of the handle. In particular, the rosette can be designed in several parts, whereby the locking of the locking means can take place in or on just one component of the multi-part rosette.

[0013] Another advantageous aspect of the door fitting according to the invention lies in its minimalist construction. By reducing the number of components, it is possible to design the entire locking mechanism so compact that, apart from the operating element, it is not visible anywhere. The visible substructure, such as the rosette, only needs to be designed with a thickness of, for example, 2 mm. This also allows handles to be designed that completely conceal the substructure, with a locking mechanism integrated into the handle. This also makes it possible to dispense with key rosettes on toilet doors, for example, which can even better correspond to the minimalist design of a door fitting desired in the market.

[0014] According to the invention, the locking means is to be received both in or on the neck section itself and in or on the adapter element in such a way that the latter can be moved into and out of a locked position, so that the locking means can prevent the handle on the rosette from rotating in the locked position. The rosette, within the meaning of the invention, is a component of the door fitting that is only attached to the outside of a door leaf and does not protrude into it, except with molded-on screw domes. The rosette has receiving openings for the handles, in which the neck section of the handles is rotatably received and / or mounted with its end face. The rosette can also be multi-part and have a reinforcing element as its base body, which is mounted on the door leaf and provided with an external cover, which in this case is also understood to be part of the rosette.

[0015] The adapter element serves in particular as an intermediate element between the shaft element and the handle, and the neck portion can be hollow, so that the adapter element is held in the neck portion of the handle in a rotationally fixed manner. This takes advantage of the fact that the locking means is arranged within or on the neck portion or within or on the adapter element, and the locking means can be manually moved into and out of the locked position.

[0016] The locking means need not necessarily be movable along the longitudinal axis, and it is also conceivable to connect the locking means to the neck portion of the handle or to accommodate it in the neck portion in such a way that it can lock the handle to the rosette by a rotational movement along the longitudinal axis or by a pressure movement perpendicular to the longitudinal axis. According to the invention, the locking means is accommodated both in or on the neck portion itself and in or on the adapter element.

[0017] According to the invention, the locking means is formed by a slide element that is movably received in or on the adapter element. Particularly when the locking means is intended to be linearly movable along the longitudinal axis of the shaft element and thus also along the longitudinal axis of the neck section or of the adapter element, the locking means can be designed as a slide element that is slidably guided in or on the adapter element, or at least within the neck section. The slide element can then be manually moved in such a way that it is advanced toward the rosette in order to lock the adapter element and thus also the handle to the rosette, and the slide element can be manually retracted in order to release the handle's rotational mobility about the longitudinal axis.

[0018] As an alternative to a rotational mobility of the slide element around the longitudinal axis or as an alternative to a mobility of the slide element transversely to the longitudinal axis, it is particularly advantageous if the slide element is movably guided parallel to or with the longitudinal axis of the shaft element in or on the adapter element, because then the slide element can be moved directly manually into and out of the locking position.

[0019] For locking, the rosette has a recess into which a locking portion of the locking means is inserted in the locked position. The locking means, particularly in the form of the slide element, can have an elongated extension with a cross-section that is, for example, quadrangular, and the locking portion forms, for example, a front section or an extension of the slide element that can be inserted into the recess of the rosette. The remaining elongated body of the slide element remains in the complementary receptacle in or on the adapter element.

[0020] The receptacle for the locking means in the adapter element is advantageously a guide groove in the adapter element, so that the locking means, in particular in the form of the slide element, is movably guided along its longitudinal axis in the guide groove. The design of the neck section can be advantageously utilized, and the guide groove can be closed by means of the tubular neck section to form a guide channel in which the locking means is held and guided.

[0021] According to an advantageous development of the door fitting, the neck portion of the handle has an opening through which an operating element is guided, via which the locking means can be manually moved. The opening is advantageously designed to be elongated and extend along the longitudinal axis, for example, as a slot or a guide. The operating element can be a pin, a protruding pin, or a flat sliding knob that can be operated from the outside of the neck portion, thus allowing manual movement of the locking means, particularly if the locking means is designed as a slide element.If the operating element is designed as a sliding button, this can essentially completely cover the opening in the neck section, and if the operating element is designed as a sliding pin, a sliding pin, a sliding pin or other sliding shaft, the width of the elongated opening can correspond to the diameter or the width of the operating element.

[0022] With further advantage, the position of the operating element within the opening can be used to visually detect whether the door handle is locked or not. In particular, a side of the locking means, in particular the slide element, visible through the opening can be color-coded such that the slide element appears red, for example, when it is in the locked position, and the slide element can appear green, for example, when it is moved out of the locked position.

[0023] An advantageous further embodiment of the door fitting according to the invention provides that an elongated emergency release element is guided through the shaft element, extending from the lockable handle to an opposite handle. The shaft element is designed, for example, as a polygonal element and, in particular, as a square element, and the shaft element has an internal passage through which the emergency release element is guided, for example, according to the design of the utility model DE 20 2013 011 573 U1.The emergency release element can be designed as a flat bar, and if a rotary movement is initiated into the emergency release element from the side of the opposite handle, a further development of the invention can provide for the emergency release element to interact with the locking means in such a way that a rotary movement of the emergency release element moves the locking means out of the locked position in the rosette. This allows, particularly in an emergency, the locking means arranged in or on the neck section of the door fitting to be moved out of the locked position by the non-locking handle, whereby the rotary movement into the emergency release element can originate from the non-locking handle.

[0024] The emergency release element, designed, for example, as a flat bar, can be connected to a tool holder element at one end of the non-lockable handle. A user of the door fitting can, for example, use a screwdriver or a coin to initiate a rotary movement from the non-lockable handle, particularly one located outside the room, into the emergency release element. The emergency release element then interacts with the locking means in such a way that the rotary movement in the emergency release element triggers a sliding movement of the locking means. The locking means can thus be moved out of the locked position in the rosette.

[0025] For example, a worm element is provided which is rotationally connected to the emergency release element and has at least one worm thread along which a projection of the locking means is guided, so that the locking means can be moved out of the locked position along its longitudinal axis by a rotational movement introduced into the worm element by the emergency release element. The emergency release element can, for example, be connected to the worm element in a simple form in a form-fitting manner, so that the rotational movement of the emergency release element can be transferred to the worm element. On the opposite side of the emergency release element, the tool holder element can also be connected to the emergency release element in a merely rotationally rigid manner, in particular in a form-fitting manner.

[0026] In an alternative embodiment of the door fitting with emergency release element, this is designed as a plunger into which a pushing movement can be initiated from the side of the opposite handle, and wherein the emergency release element interacts with the locking means in such a way that a pushing movement of the emergency release element moves the locking means out of the locking position in the rosette.

[0027] For this purpose, for example, a driving element is provided which is connected to the plunger by means of a thrust and has a molded portion which is in positive connection with a projection of the locking means, so that the locking means can be moved out of the locked position by means of a pushing movement along the longitudinal axis initiated by the emergency release element into the driving element. The neck portion of the handle preferably has an opening on the side opposite the locking means, through which the emergency release means is accessible for the purpose of initiating a pushing movement by means of a pin or the like.

[0028] In addition, the emergency release element of the aforementioned embodiment can have a signal surface, wherein the opposite handle is formed with an opening so that, in the locked position of the locking means, the signal surface is visible through the opening and indicates locking. The end face of the elongated emergency release element preferably serves as the signal surface, which is covered, for example, with red paint for this purpose. The opening of the handle through which the signal surface is visible corresponds in this case to the aforementioned opening on the end face of the neck section.

[0029] Furthermore, a magnetic element can be accommodated in the neck portion of the lockable handle, which magnetically draws the locking means into the locked position and / or secures the locking means therein, and which magnetically draws the locking means into a release position and / or secures it in the release position. The magnetic element is designed, for example, as a round magnetic disc and is fixedly accommodated adjacent to the screw element in the neck portion; in particular, the magnetic element can be fixedly arranged in the adapter element.

[0030] It is particularly advantageous if the magnetic element cooperates with a first contact surface of the locking means in order to pull the latter into the blocking position and / or to secure it therein, wherein the magnetic element cooperates with a second contact surface of the locking means in order to pull the latter into the release position and / or to secure it therein.

[0031] The contact surfaces, which in particular oppose one another, can be formed on the inside of projections of the slide element, and the magnetic element, which is, for example, disc-shaped, is located between the two opposing projections. The magnetic element is enclosed between the two contact surfaces. When a user moves the slide element into the locked position, the mutually opposing attraction of the magnet to the contact surfaces generates haptic information that the locking means has been moved into the locked position. When the slide element is moved into the released position, the attraction of the magnet similarly generates haptic information, informing the user whether the locked position or the released position is present. PREFERRED EMBODIMENT OF THE INVENTION

[0032] Further measures improving the invention are described in more detail below, together with the description of a preferred embodiment of the invention, with reference to the figures. It shows: Figure 1 shows a perspective view of a door fitting with a handle that can be locked on one side and a locking means for manually locking the handle. Figure 2 shows a detailed view of an adapter element of the lockable handle in which the locking means is accommodated. Figure 3 shows a detailed view of the adapter element and the rosette on which the adapter element can be rotationally locked. Figure 4 shows a cross-sectional overall view through the door fitting according to Figure 1 , Figure 5 a detailed view of a screw element arranged in the adapter element in a basic position, Figure 6 a view of the screw element according to Figure 5in an activated position for transferring the slide element from a locking position to a release position, Figure 7 a cross-sectional overall view of a door fitting in the locking position with an alternative emergency release and Figure 8 a cross-sectional overall view of the door fitting according to Figure 7 with the alternative emergency release in the release position.

[0033] Figure 1 shows a perspective view of a door fitting 1 with a one-sided locking handle 10 designed according to the invention. The door fitting 1 has two handles 10 in a manner known per se, and one handle 10 can be located on an inside of a room and one handle 10 on an outside of a room with respect to a door leaf (not shown). The lockable handle 10 can be located on the inside of the door.

[0034] The door fitting 1 further comprises rosettes 11 designed to engage the door leaf, and a shaft element 12 is shown, which extends between the two handles 10 and traverses the locking mechanism of a lock case that can be inserted into the door leaf. The handles 10 have neck sections 14, and adapter elements 13 are located in the neck sections 14, in particular for connecting the handles 10 to the shaft element 12 in a rotationally rigid manner. For this purpose, the ends of the shaft element 12 extend in sections into a respective inner passage of the adapter elements 13, and the neck section 14 of the handles 10 is mounted on the outside of the adapter element 13 in a rotationally rigid manner.

[0035] The neck portion 14 of the handle 10, which is designed to be lockable, is shown broken open so that the adapter element 13 is visible in the neck portion 14. A locking means 15 is accommodated in the adapter element 13, and for actuating the locking means 15, the adapter element has an operating element 22 for manual operation, which extends through an opening 21 in the neck portion 14.

[0036] If the locking means 15 is displaced toward the rosette 11 by manual actuation of the operating element 22, the locking means 15 engages the rosette 11 in a form-fitting manner. Since the locking means 15 is positively received in the adapter element 13 and since the handle 10 is rotationally rigidly mounted on the adapter element 13, the mobility of the handle 10 about a longitudinal axis 17 can be blocked. In the locked state, both handles 10 are blocked because they are rotationally rigidly connected to one another via the shaft element 12. However, the locking of the handles 10 can only be triggered from one side of the two handles 10, with the handle 10, which has the locking means 15 and thus also the operating element 22, being mounted, for example, on the inside of a room, such as a toilet or a conference room, etc.If the handles 10 are to be released again, the locking means 15 must be moved away from the rosette 11 via the operating element 22, so that it is disengaged from the rosette 11. On the handle 10, which is not provided with the locking means 15, the tool holder element 31 for emergency release of the locked handles 10 is located on the rear side of the neck section 14.

[0037] Figure 2shows a more detailed view of the adapter element 13, in which the locking means 15 is accommodated, which is designed as a slide element 16. The operating element 22 is attached to the top of the slide element 16 as part of the locking means 15, which is designed as a cylindrical pin. The slide element 16 is inserted into a guide groove of the adapter element 13 so that it can be axially displaced along the longitudinal axis 17. For the positive engagement of the slide element 16 in the rosette 11, the latter has a locking section 19, which can be inserted into a recess 18 in the rosette 11.

[0038] Figure 3 shows in a further perspective view the rosette 11 and the adapter element 13, and the recess 18 in the rosette 11 is made corresponding to the guide groove 20 in the adapter element 13. If according to Figure 2If the slide element 16 is pushed forward in the direction of the rosette 11, the locking section 19 enters the recess 18 of the rosette 11 and blocks a twisting movement of the adapter element 13 and thus also of the handle 10 relative to the rosette 11, which is rigidly attached to a door leaf when the door fitting 1 is installed.

[0039] According to the exemplary embodiment, the rosette 11 has a reinforcing element 32 and a cover element 34, wherein the recess 18 is introduced into the reinforcing element 32 formed from a thicker sheet metal, so that even larger manually introduced torques into the adapter element 13 do not lead to damage to the recess 18, and wherein the cover element 34 can have a thinner, in particular metallic or non-metallic material.

[0040] Figure 4shows a cross-section through the door fitting 1 with the two handles 10 and the two rosettes 11. The adapter elements 13 are inserted into the neck sections 14 of the handles 10, and the slide element 16, which forms the locking element 15, is received in the left adapter element 13. The cross-section shows the slide element 16 with the operating element 22, which extends through the opening 21 in the neck section 14 for manual operation.

[0041] An emergency release element 23 extends through the shaft element 12 and is connected in a rotationally rigid manner to a worm element 24 on the side where the locking means 15 is arranged. Thus, one end of the elongated emergency release element 23 extends to the worm element 24, and the opposite end of the emergency release element 23 is connected to a tool holder element 31 for emergency release.

[0042] If the door fitting 1 is to be unlocked in an emergency while in a locked position, a tool can be used on the side of the right-hand handle 10 to initiate a rotary movement into the emergency release element 23 via the tool holder element 31, which also generates a rotary movement in the worm element 24. A projection 26 on the locking means 15 is moved away from the rosette 11 along the longitudinal axis 17 by a worm thread 25 of the worm element 24, whereby the locking means 15 can be disengaged from the rosette 11.

[0043] At the rear of the screw element 24, a magnetic element 27 is introduced into the adapter element 13, which can magnetically interact with a first contact surface 28 and an opposite contact surface 29, which contact surfaces 28 and 29 are formed opposite one another on the projection 26 and on a rear projection 30.

[0044] The illustration shows the locking element 15 in the locked position, with a front locking portion 19 of the locking means 15 positively engaging the rosette 11. In this position shown, the second contact surface 29 on the rear projection 30 comes into contact with the magnetic element 27, so that the locking means 15 is held in the locked position and snaps into place. If the locking means 15 is manually withdrawn from the rosette 11, the contact between the magnetic element 27 and the second contact surface 29 is released, and the first contact surface 28 is attracted to the magnetic element 27, which is attached to the projection 26. In this release position, the locking means 15 is also held and snapped into place by the magnetic element 27.The magnetic element 27 generates a haptic effect for the operation of the locking means 15 with the respective magnetic snap, so that in each axial end position of the locking means 15 along the longitudinal axis 17, a detent position can be felt by an operator.

[0045] Figure 5shows a perspective view of the adapter element 13 with the locking means 15 in the form of the slide element 16 in a locked position. The sectional view also shows the worm element 24 with the worm thread 25. In this view, it can be seen that the projection 26 rests with one flank against the worm thread 25 of the worm element 24. The axial position of the slide element 16 is shown in the direction of the rosette (not shown), so that the locking means 15 is in the locked position. The worm element 24 is preloaded into a rest position by a spring element 33, so that this rotational preload also applies to the emergency release element. If the emergency release is to be activated, the worm element 24 is rotated accordingly against the force of the spring element 33, as further described in Figure 6 shown.

[0046] Figure 6shows the view of the adapter element 13 with the locking means 15 in a now unlocked position, wherein the screw element 24 has been rotated, and wherein the rotation has taken place against the force of the spring element 33. Due to the fact that the projection 26 (see Fig. 5 ) could slide along the worm gear 25, the locking means 15 was moved away from the rosette in the direction of the arrow shown, so that the rotation of the worm element 24 moved the locking means 15 from the locked position to the released position. If the rotational movement is no longer maintained by the emergency release element 23, the spring element 33 reverses the rotational movement of the worm element 24.

[0047] Because the projection on the locking means 15 only rests on one side of the worm gear 25 of the worm element 24, the return of the rotational movement of the worm element 24 by the spring element 33 into the Fig. 5 shown rest position, the locking means 15 does not return to the locked position. This is the only way to relock the handle 10 using the locking means 15. Otherwise, the user would have to manually turn the locking means 15 back after each emergency release in order to be able to lock the handle 10 again during normal use. In addition, the spring element 33 is necessary to ensure that the worm element 24 does not rotate in an undefined manner when the handle 10 is actuated, or that it cannot twist and possibly stop in such a way that it is no longer possible to lock the handle 10 using the locking means 15.

[0048] The Figures 7 and 8show cross-sectional overall views of a door fitting 1 in the locking or release position of the locking means 15. The door fitting 1 comprises the emergency release means 23 in the form of the plunger 41, by means of which the locking means 15 can be transferred from the locking into the release position by initiating an axial pushing movement from the opposite, i.e. left, handle 10.

[0049] On the locking means 15 side, the plunger 41 is connected to the driving element 35 by means of the grub screw 40, i.e., when the emergency release element 23 is displaced along the longitudinal axis 17, the driving element 35 is carried along. The driving element 35 has the upper protruding projection 36, which is in engagement with the locking means 15 and, in particular, is in positive connection with the projection 26. Via this positive connection, an axial pushing movement of the emergency release element 23 is transmitted to the locking means 15 and the locking section 19 of the slide element 16 is pushed back from the rosette 11, so that the locking means 15 is displaced from the Figure 7 shown locking position into the Figure 8 shown release position. In doing so, the holding force exerted by the magnetic element 27 on the second contact surface 29 must be overcome.

[0050] On the side of the door fitting 1 opposite the locking means 15, the neck portion 14 of the handle 10 has the front opening 38, which allows access to the emergency release element 23. For the purpose of emergency release, an object fitting through the opening 38, for example a pin, is brought into contact with the front of the emergency release element 23, and then a pushing movement along the longitudinal axis 17 is initiated in the emergency release element 23, which leads to the unlocking of the locking means 15 in the manner described above. The emergency release element 23 is guided by the guide sleeve 39 pressed into the interior of the shaft element 12.

[0051] The front side of the emergency release element 23 is designed as a signal surface 37 by being colored, for example painted, with a signal color, in particular red. Figure 7In the locking position of the locking means 15 shown, the signal surface 37 is flush with the contour of the handle 10, so that the signal surface 37 is visible from the outside and signals the locked state of the door fitting 1. In the case of the Figure 8 In the release position shown, the signal surface 37 is pushed into the interior of the shaft element 12 and is therefore effectively no longer visible from the outside.

[0052] The invention is not limited in its implementation to the preferred embodiment described above. Rather, a number of variants are conceivable, which utilize the presented solution even in fundamentally different embodiments. The scope of the invention is defined solely by the appended claims. List of reference symbols:

[0053] 1 door fitting 10Handle 11Rosette 12Shaft element 13Adapter element 14Neck section 15Locking means 16Slide element 17Longitudinal axis 18Recess 19Locking section 20Guide groove 21Opening 22Operating element 23Emergency release element 24Worm element 25Worm thread 26Protrusion 27Magnet element 28First contact surface 29Second contact surface 30Rear projection 31Tool holder element 32Reinforcing element 33Spring element 34Cover element 35Drive element 36Forming 37Signal surface 38Opening 39Guide sleeve 40Set screw 41Plunger

Claims

1. Door fitting (1) having a handle (10) which can be locked on one side, with at least one rosette (11) for lying against a door leaf and with a shaft element (12) for forming an operative connection to the locking mechanism of a lock unit inserted into the door leaf, and wherein an adapter element (13) is inserted in a neck section (14) of the handle (10) and is accommodated in the neck section (14) in a torsion-resistant manner and which is accommodated on the shaft element (12), characterized in that a locking means (15) is accommodated both in or on the neck section (14) itself and in or on the adapter element (13), which can be brought into a locking position by means of manual operation, in which the handle (10) can be rotationally blocked on the rosette (11) by means of the locking means (15) and in that the locking means (15) is formed by a slide element (16), which is movably accommodated in or on the adapter element (13).

2. Door fitting (1) according to claim 1, characterized in that the slide element (16) is movably guided parallel to a longitudinal axis (17) of the shaft element (12) in or on the adapter element (13) for moving it manually in and out of the locking position.

3. Door fitting (1) according to any one of the claims 1 or 2, characterized in that the rosette (11) comprises a recess (18) into which a blocking section (19) of the locking means (15) can be inserted in the locking position.

4. Door fitting (1) according to claim 2 characterized in that the adapter element (13) comprises a guide groove (20) in which the locking means (15) is guided along the longitudinal axis (17).

5. Door fitting (1) according to claim 4, characterized in that the guide groove (20) is formed into a closed guide channel by means of the tubular neck section (14) and that the locking means (15) is held and guided within said closed guide channel.

6. Door fitting (1) according to any one of the preceding claims, characterized in that the neck section (14) comprises an opening (21) through which an operating element (22) is passed, via which the locking means (15) can be moved manually.

7. Door fitting (1) according to any one of the preceding claims, characterized in that an oblong emergency release element (23) is guided through the shaft element (12), which extends from the lockable handle (10) to an opposite handle (10).

8. Door fitting (1) according to claim 7, characterized in that a rotational movement can be applied into the emergency release element (23) from the side of the opposite handle (10), and wherein the emergency release element (23) interacts with the locking means (15) in such a way that a rotational movement of the emergency release element (23) leads the locking means (15) out of the locking position in the rosette (11).

9. Door fitting (1) according to claim 7 or 8, characterized in that a screw element (24) is provided which is connected to the emergency release element (23) and which comprises at least one screw channel (25), along which a projection (26) of the locking means (15) is guided so that the locking means (15) can be moved from the locking position along the longitudinal axis (17) by a rotational movement applied by the emergency release element (23) into the screw element (24).

10. Door fitting (1) according to claim 7, characterized in that the emergency release element (23) is designed as a plunger (41) into which a pushing movement can be applied from the side of the opposite handle (10), and wherein the emergency release element (23) interacts with the locking means (15) in such a way that a pushing movement of the emergency release element (23) leads the locking means (15) out of the locking position in the rosette (11).

11. Door fitting (1) according to claim 10, characterized in that a pusher dog (35) is provided which is shear connected to the plunger (41) and comprises a moulding (36) which is in a form-fitting connection with a projection (26) of the locking means (15) so that the locking means (15) can be moved from the locking position by a pushing movement applied by means of the plunger (41) into the pusher dog (35) along the longitudinal axis (17).

12. Door fitting (1) according to claim 10 or 11, characterized in that the emergency release element (23) comprises a signal surface (37), wherein the opposite handle (10) is formed with an opening (38) so that, in the locking position of the locking means (15), the signal surface (37) is visible through the opening (38), thereby indicating a lock.

13. Door fitting (1) according to any one of the preceding claims, characterized in that a magnetic element (27) is accommodated in the neck section (14) of the lockable handle 10) which magnetically draws the locking means (15) into the locking position and / or secures it in the locking position and which magnetically pulls the locking means (15) into a release position and / or secures it into said release position.

14. Door fitting (1) according to claim 13, characterized in that the magnetic element (27) interacts with a first contact surface (28) of the locking means (15) to pull it into and / or secure it into the release position and wherein the magnetic element (27) interacts with a second contact surface (29) of the locking means (15) to pull it into and / or secure it into the locking position.