Door wing with flush-mounted door fitting and handle support and assembly method

Abstract

The invention relates to a door leaf (10) with a flush-mounted door hardware (16) for interaction with a lever handle set (14), wherein a substructure (32, 32a, 32b) for rotatably mounting a plug end (40) of a door handle (42, 42a, 42b) of the lever handle set (14) is recessed under a cover (34) in a door leaf (18). To enable more convenient operation even when using different commercially available door handles (42, 42a, 42b), possibly also with a locking mechanism (28) on the door handle (42a), it is proposed that the substructure be positively supported against rotation in the door leaf (18) and include a spring element (106), in particular for holding the handle in the up position, to apply a restoring force to the door handle (42b).

Description

[0001] The invention relates to a door leaf with a flush-mounted door fitting for interaction with a door handle. Furthermore, the invention relates to a mounting method for a recessed, particularly flush-mounted, door fitting in a door leaf.

[0002] For the technological background, please refer to the following literature: [1] DE 20 2005 016 217 U1 [2] DE 10 2007 000 908 B3 [3] Catalogue "Interior Doors" of Hörmann KG Sales Company, with the printing note "Stand 07.2020 / Druck 07.2020 / HF 86734 de / P.xxx www.hoermann.com", downloaded from the Internet on 21.12.2020 [4] EP 2 754 790 A1 [5] DE 10 2018 100 360 A1 [6] EP 4 019 716 A1 [7] EP 2 284 335 A2 [8] DE 39 31 472 A1 [9] DE 20 2017 004 533 U1

[10] DE 20 2013 011 573 U1

[11] DE 20 2007 030 655 A1

[12] EP 3 067 491 B1

[13] GB 2 123 070 A

[14] DE 10 2018 129 450 A1

[0003] Reference [1] describes a door leaf with a flush-mounted handle fitting, in which the door fitting has a rosette plate for supporting the door handle. An additional cover may be provided. To allow the handle to be pivotably mounted on the rosette plate, the handle neck must be designed with a groove that encompasses an inner edge of the plate. Therefore, only special door fittings with a special door handle can be used. The manufacture of the door handle is complex, and subsequent depth adjustment is not possible.

[0004] Therefore, in literature reference [2], in order to improve a door leaf with a flush handle fitting, it was proposed to provide a continuously milled handle recess through which a lock inserted into the door leaf passes. A substructure for supporting the door leaf rests on the lock. A conventional door handle of a conventional handle set can be pivoted on the substructure. Such door handles have a handle body with a larger diameter on the handle neck and a insertion end extending from the handle body with a uniformly smaller diameter, which is inserted into a cylindrical through opening in the substructure and can be moved axially there until the handle set is axially fixed, holding the door leaf between them, by screwing the two door handles onto the handle shaft, which is usually designed as a square.Gaps between the door handles and the substructure are compensated with spacer washers. Different spacer washers are provided to accommodate different door leaf thicknesses.

[0005] The reference [3] shows examples of different doors with door leaves in different designs and with different door leaf thicknesses, as they can also be used in embodiments of the invention.

[0006] References [4] and [5] disclose a base plate as a substructure and bearing assembly for a door handle, as well as a rosette assembly as part of a handle assembly, and a method for assembly. A handle assembly comprises a substructure and a cover on each of the broad sides of a door leaf. The substructure rests on a step of the door leaf body and is screwed to the opposite substructure. The cover is attached to the substructure by magnets or locking elements.

[0007] Reference [6] shows a door leaf with flush-mounted door fittings for lever handle operation, as well as a corresponding assembly method that allows for greater design options and simpler construction and assembly while maintaining a high quality impression. This involves a floating substructure.

[0008] Reference [7] discloses a bearing assembly for a door handle and a rosette assembly as part of a handle set, as well as a method for assembly. A rosette assembly comprises a substructure and a cover on each of the wide sides of a door leaf. The substructure rests on a step of the door leaf body and is screwed to the opposite substructure. The cover is attached to the substructure by clamps and rests with its edge on the wide side.

[0009] The object of the invention is to create a door leaf with a flush door fitting for interaction with a door handle that is more convenient to operate.

[0010] To achieve this object, the invention provides a door leaf according to claim 1.

[0011] Advantageous embodiments are the subject of the subclaims.

[0012] The invention provides a door leaf with a door leaf with a door leaf body and an actuating mechanism having a handle set cooperating with a door fitting, wherein the door fitting has a substructure for pivotally supporting the handle set and a cover for covering the substructure, wherein the handle set has a door handle having a handle area and a neck area, wherein the neck area comprises a insertion end, wherein the substructure has a through opening into which the insertion end can be inserted and rotatably mounted therein, wherein a lock case recess for receiving a lock that can be actuated by the door handle and at least one handle recess that is at least partially continuous between at least one of the broad sides of the door leaf and the lock case recess are provided in the door leaf body, wherein the substructure of the door fitting is received in the handle recess so that the door fitting is flush with a surrounding surface, wherein the substructure is received in the handle recess in a form-fitting manner and secured against twisting, and wherein the substructure has a spring element that exerts a restoring force on the door handle.

[0013] It is preferred that the substructure has a substructure body which is positively received in the handle recess in a manner secured against twisting and to which the spring element is fastened.

[0014] It is preferred that the substructure body has a recess on the rear side facing the lock, in which recess the spring element is at least partially received.

[0015] It is preferred that the substructure body has at least one spring stop extending radially with at least one directional component, against which the spring element strikes.

[0016] It is preferred that the substructure body has at least one radial projection as a spring stop and / or stop for limiting the handle movement.

[0017] It is preferred that the substructure body is designed as a plate body, wherein an outer contour of the plate body, seen in plan view, is non-circular, angular, quadrangular, square, rectangular or in the form of another polygon or is symmetrical with respect to at least one central plane, wherein a radially inwardly directed boundary wall of the handle recess is designed complementarily to the outer contour of the substructure body.

[0018] It is preferred that the spring element is designed as a spring with at least one winding extending around the through-opening and a first force introduction region which is fixed to the substructure and a second force introduction region which is fixed directly or indirectly to the neck region.

[0019] It is preferred that the spring element engages in a spring receiving opening on the neck region.

[0020] It is preferred that the spring element engages a sleeve which is rotatable in the substructure and into which the neck region is inserted and which is formed with a non-circular opening for the rotationally fixed, positive-locking reception of a handle shaft of the handle set.

[0021] It is preferred that the substructure has a stop ring which is connected in a rotationally fixed manner to the neck region and limits an axial movement of the spring element and a rotational movement of the door handle.

[0022] It is preferred that the substructure has a cover on a rear side facing the lock for axial positioning of the spring element.

[0023] It is preferred that the substructure is fixed exclusively by positive locking on its outer contour and by edging between a step on the handle recess and the cover.

[0024] It is preferred that the substructure is fixed exclusively by means of a form fit on its outer contour, by being sandwiched between a step on the handle recess and the cover, and by means of an adhesive connection.

[0025] It is preferred that the handle set comprises one or two door handles which are mounted in associated substructures, and that a locking mechanism is provided which prevents rotation of a lockable door handle of the handle set relative to the substructure supporting this lockable door handle in the locking position and enables it in the unlocking position.

[0026] It is preferred that the locking mechanism has a locking element on a neck region of the lockable door handle that is axially movable relative to its axis of rotation and a counter bearing for the locking element on the substructure that pivotally supports the lockable door handle.

[0027] It is preferred that the counter bearing has a radial recess in the through opening.

[0028] It is preferred that the radial recess is arranged on the lock side of the substructure.

[0029] It is preferred that a first and a second radial recess are formed on two opposite sides of the through opening.

[0030] It is preferred that an actuating element for actuating the movement of the locking element is provided on the lockable door handle.

[0031] It is preferred that the actuating element projects displaceably from the neck region of the lockable door handle.

[0032] It is preferred that the actuating element is arranged on the side of the neck region facing away from the handle region.

[0033] According to a further aspect, the invention provides a method for mounting a door fitting for cooperating with a handle assembly comprising a door handle, the door handle comprising a neck portion with a larger diameter and a spigot extending from the neck portion with a smaller diameter, on a door leaf having a door leaf body, the method comprising the steps of: Providing a substructure for pivotally supporting the handle fitting and a cover for covering the substructure, wherein the substructure has a partially cylindrical through-opening for inserting and rotatably supporting the insertion end, wherein the substructure has a non-circular outer contour and has a spring element, providing a lock case recess for receiving a lock and at least one at least partially continuous handle recess between at least one of the two broad sides of the door leaf and the lock case recess in the door leaf body such that the substructure and the door fitting can be received in the handle recess,that the door fitting is flush with a surrounding surface of the door leaf and the substructure can be supported on a step formed on the door leaf body between the lock case recess and a support area of ​​the substructure and is positively secured against twisting with the non-circular outer contour, floating mounting of the substructure in the handle recess and fixing of the substructure by the flush-fitted cover or by the flush-fitted cover and an adhesive, and inserting the door handle into the passage opening and connecting it to the spring element in such a way that this exerts a restoring force on the door handle to return it to a normal position.

[0034] Preferred embodiments of the invention relate to a door with flush handle rosettes (example of cover) and handle lift.

[0035] Preferred embodiments of the invention relate to an integrated handle lift, which improves ease of use, but can also be combined with locks that do not have a suitable handle lift themselves.

[0036] Until now, flush-mounted door fittings could not be combined with certain types of locking devices in the handle, as these require a lever-lift mechanism. With the invention's refinements, these can now be used.

[0037] Door handles or handle sets are often supplied by handle manufacturers as subcontractors to door manufacturers. Some handle manufacturers offer various locking mechanisms integrated into the handle itself. Some of these locking mechanisms require a lever-lift mechanism, i.e., a spring element that holds the handle in its normal position (usually with the handle horizontal) and returns it to its original position after operation.

[0038] Some embodiments utilize a handle lift mechanism in a substructure that is recessed into the door leaf and secured there by a positive locking mechanism to prevent rotation. Such substructures with positive locking are described in the earlier, unpublished German patent application 10 2022 107 184.7, but for the purpose of locking, not for a handle lift mechanism. Reference is made to this earlier patent application for further details on possible embodiments.

[0039] In some preferred embodiments, the substructure is partially recessed at the rear. The goal is to attach a spring to a small, remaining portion of the substructure at the rear.

[0040] In some designs, this small, remaining part also serves as a stop for a stop ring, which, due to its design, ensures that the pusher movement can only take place between two outer tabs of the stop ring.

[0041] In some versions, the DIN direction of the handle (DIN right or DIN left) can be set at the factory by turning the spring and the stop ring.

[0042] In some designs, the connection to the handle is made through the inner spring end of the spring and through internal extensions of the stop ring. During on-site installation, both are inserted into a spring receiving opening, e.g., formed as a groove in the handle neck.

[0043] In contrast to standard rosettes, where the handle can be pre-mounted on the back with a snap ring, in some versions of the invention, the handle cannot be mounted with a snap ring due to the assembly sequence. For this reason, in some versions, a cover is placed on the back of the flush-mounted, concealed substructure with a handle lift before the substructure is installed in the door. This cover can be screwed, clipped, or glued. With a suitable handle neck length, the cover can also serve as an additional handle neck guide.

[0044] The spring and stop ring are precisely positioned in the substructure thanks to the rear cover, the hooking of the spring, the grooves in the handle neck and the limitation of the rear, inner recess.

[0045] Due to the low height of the substructure, this version can also be used for the rebate side of rebated doors.

[0046] In other embodiments of the invention, the substructure is also partially recessed on the inside at the rear. Here, a spring is also used, which engages a stop in the substructure. The spring's counterbearing is a rotatable part, for example, a plastic part with a square hole, which positively accommodates the handle shaft, usually designed as a square handle. The rotatable part, especially the plastic part, is held in position in the substructure by positive locking, gluing, or a cover, similar to the one described above.

[0047] This creates an indirect connection to the handle. One advantage of this design is that no spring-receiving openings, such as grooves, are required in the handle neck.

[0048] Depending on the length of the handle neck, the substructure in these designs can be thicker, which can limit the area of ​​application.

[0049] In some embodiments, only one of the substructures on either side can be provided with the spring element, or both substructures on either side can be provided with a spring element each.

[0050] In some embodiments, a spring element in at least one of the substructures is combined with a locking mechanism for directly locking the door handle in at least one of the substructures. In some embodiments, the spring element for holding the handle upright and the locking mechanism can be provided on the same side of the door leaf, on the same substructure. In other embodiments, one of the substructures is provided with the spring element on one side, thus ensuring that the handle is held upright, and the substructure on the other side, which can be equipped with or without a spring element, is designed as a counterbearing for a torsion-proof, direct locking of the door handle inserted therein.

[0051] Embodiments with locking relate in particular to a door leaf comprising a door leaf with a door leaf body and an actuating mechanism having a handle set that interacts with a door fitting. The door fitting has a substructure for pivotally supporting the handle set and a cover for covering the substructure. The handle set has a door handle that has a gripping area and a neck area, the neck area including a spigot end. The substructure has a through opening into which the spigot end can be inserted and rotatably mounted.The door leaf body includes a lock case recess for accommodating a lock operable by the door handle, and at least one handle recess, at least partially continuous, between at least one of the wide sides of the door leaf and the lock case recess. The substructure of the door fitting is received in the handle recess, so that the door fitting sits flush with the surrounding surface. The substructure is mounted in a floating manner in the handle recess, secured against rotation. In one alternative, the substructure is secured exclusively by a positive fit on its outer contour and by being sandwiched between a step on the handle recess and the cover.In another alternative, the substructure is secured exclusively by a torsion-resistant form fit on its outer contour, by enclosing it between a step on the handle recess and the cover, and by an adhesive bond. Furthermore, a locking mechanism is provided that prevents rotation of the door handle relative to the substructure in the locked position and allows it in the unlocked position.

[0052] At least one of the form-fitting substructures is preferably provided with the spring element.

[0053] This makes attaching and installing the substructure very easy. No screws are required. The handle recess is also very easy to create; simply milling a recess complementary to the outer contour of the substructure is sufficient; no additional holes for screws or the like are required. Nevertheless, a very high-quality, flush appearance can be achieved.

[0054] The locking mechanism allows for a very simple and aesthetically pleasing solution for one-sided locking, for example, on bathroom or toilet doors. The lock can be very simple, with just a latch and no additional bolt. The door leaf does not require an additional keyhole for the handle set. This allows for a very clean appearance.

[0055] It is preferred that the locking mechanism has a locking element on the neck area that is axially movable relative to its axis of rotation and a counter bearing for the locking element on the substructure.

[0056] It is preferred that the counter bearing has a radial recess in the through opening.

[0057] It is preferred that the radial recess is arranged on the lock side of the substructure, i.e. on the side facing a lock counter bearing when the door leaf is closed.

[0058] It is preferred that a first and a second radial recess are formed on two opposite sides of the through opening.

[0059] With the solutions mentioned above, a right / left design can easily be created using the same parts, so that the door fitting and the handle set are suitable for both right-hinged and left-hinged doors.

[0060] It is preferred that an actuating element for actuating the movement of the locking element is provided on the door handle to be locked.

[0061] It is preferred that the actuating element protrudes displaceably from the neck region.

[0062] It is preferred that the actuating element be arranged on the side of the neck area facing away from the gripping area. This has the advantage that the actuating element can be easily actuated with the thumb when grasping, and the door handle can be used for both right-hinged and left-hinged doors.

[0063] It is preferred that the substructure is designed as a plate body, wherein an outer contour of the plate body, seen in plan view, is non-circular, angular, quadrangular, square, rectangular or in the form of another polygon or with, wherein a radially inwardly directed wall of the handle recess is designed complementary to the outer contour of the substructure.

[0064] Embodiments provided with a locking device can be mounted on a door leaf having a door leaf body by a method for mounting the door fitting for interaction with a handle set comprising a door handle with a locking element for fixing the door handle in rotation, the door handle comprising a neck region with a larger diameter and a insertion end extending from the neck region with a smaller diameter, the method comprising the steps of: Providing a substructure for pivotally supporting the handle fitting and for creating a counterbearing for the locking element and a cover for covering the substructure, wherein the substructure has a partially cylindrical through-opening for detachably inserting and rotatably supporting the insertion end, which has a radial recess in the form of an axially extending groove as a counterbearing for the locking element, wherein the substructure has a non-circular outer contour, providing a lock case recess for receiving a lock and at least one at least partially continuous handle recess between at least one of the two broad sides of the door leaf and the lock case recess in the door leaf body such that the substructure and the door fitting can be received in the handle recess,that the door fitting is flush with a surrounding surface of the door leaf and the substructure can be supported on a step formed on the door leaf body between the lock case recess and a support area of ​​the substructure and is positively secured against twisting with the non-circular outer contour, floating mounting of the substructure in the handle recess and fixing of the substructure by the flush-fitted cover or by the flush-fitted cover and an adhesive, preferably removable adhesive, more preferably hot-melt adhesive.

[0065] Here too, at least one of the substructures is provided with the handle lift.

[0066] It is preferred that the handle recess has a first region of smaller diameter located further inside and a second region of larger diameter located further outside, in which at least the support region of the substructure is accommodated.

[0067] It is preferred that the substructure is supported on a step flank at a transition between the first area and the second area.

[0068] It is preferred that the substructure comprises a substructure body in which the cylindrical through-opening is arranged and a flange extending radially outward from the substructure body as a support region with which the substructure is supported on the step.

[0069] It is preferred that the handle rests directly on a contact surface of the substructure so that the substructure acts directly as a depth limiter for the handle.

[0070] It is preferred that the substructure for forming the contact surface has a projection which precisely passes through an opening in the cover.

[0071] It is preferred that the cover is supported on the substructure and / or a second step of the handle recess.

[0072] It is preferred that the handle recess has a third region arranged between the broad side and the second region with a larger diameter than the second region, wherein the cover and / or the flange of the substructure rests on a second step flank at the transition between the second region and the third region.

[0073] It is preferred that the cover is fixed in the handle recess with a hot melt adhesive.

[0074] It is preferred that an area between the cover and the step and / or substructure is filled with hot melt adhesive.

[0075] It is preferred that a locking recess for receiving a locking element is formed in the door leaf body, which is also provided with a step for supporting the cover or a further cover of the door fitting.

[0076] It is preferred that the at least one cover is designed as a rosette.

[0077] Alternatively, a door sign or the like can be provided.

[0078] It is preferred that the at least one cover is designed as a disc.

[0079] It is preferred that the at least one cover is made of metal, HPL or plastic.

[0080] It is preferred that the door leaf body be formed from a machinable material, at least in the area surrounding the actuating mechanism, and that the handle recess be milled out of the door leaf body. In particular, the door leaf body is formed from a material based on wood materials, such as solid wood, laminated wood, chipboard, MDF, HDF, and / or plywood, optionally surface-coated, such as with veneers and / or plastic.

[0081] It is preferred that a first and a second handle recess, each formed with a step for supporting the substructure, are formed between the lock case and the respective broad side of the door leaf. In particular, the outer regions of the handle recesses are mirror-inverted with respect to a central plane through the door leaf. The lock case recess can be offset toward one or the other broad side with respect to the central plane.

[0082] It is preferred that the door leaf is designed as a pivoting leaf for a pivoting door.

[0083] It is preferred that the door leaf body is made of wood materials.

[0084] It is preferred that the door leaf body be plate-shaped or designed as a frame for a door leaf panel. The door leaf body can be a closed plate or provided with a window cutout.

[0085] In the following, some advantages of particularly preferred embodiments of the invention are explained.

[0086] The substructure is designed in such a way that it no longer has to be supported on the lock, but on the door material itself.

[0087] Tolerances in the lock case thickness preferably have no effect, and the lock can be replaced without problems.

[0088] The substructure acts as a depth limiter and contact surface for the actual handle, so that the previous shim can be omitted.

[0089] The cover, designed as a rosette, for example, can be made of metal, but also of an HPL or a plastic disc.

[0090] Any design requests or desired contrasting surfaces for the handle or door surface can be implemented quickly and easily.

[0091] In a preferred design, the substructure rests on the outer edge of the handle hole. This allows for easy accommodation of manufacturing tolerances for the lock, the lock position, and the substructure's milling.

[0092] In preferred designs, a floating installation of the substructure in the handle hole milling is provided.

[0093] According to an alternative, in conjunction with the flush cover, particularly a rosette, and a ring on the substructure for the handle that protrudes toward the handle, the two parts can be centered and fixed precisely over the lock nut, e.g., with hot-melt adhesive. According to an alternative, the cover, particularly in the form of a rosette disc, acts as an assembly or fixing model for the substructure.

[0094] For this purpose, it is preferably provided that an outer area of ​​the handle recess with the largest diameter, in particular an outer milling for the cover or rosette, is designed to be precisely aligned with the lock nut.

[0095] Preferably, hot melt adhesive fills the cavity under the rosette and fastens not only the rosette but also the substructure at the same time.

[0096] The substructure, preferably in conjunction with the hot melt adhesive, acts as a depth limiter when installing the cover, especially the rosette.

[0097] In combination with increased heat, the hot melt adhesive can be softened and the cover / rosette can be replaced if necessary.

[0098] In conjunction with a suitable substructure, an LED board can be placed under the cover / rose. This allows the outer edge of the cover, especially the rose, to be illuminated. The size of the cover (especially the rose) is preferably not changed, so that standard, mass-produced covers, such as existing roses, can be used. To create a light passage, the outer milling diameter is preferably slightly larger than for other door leaves without lighting.

[0099] In some embodiments, door leaves and handle fittings as described and shown in the German patent application DE 10 2020 134 924.6 are combined with handle sets (comprising door handles with a shaft) as described and shown in DE 10 2018 129 450 A1.

[0100] Some designs involve door leaves with a flush rosette and a door locking mechanism in the handle.

[0101] Some designs essentially allow the door to be locked in the handle, which is achieved by blocking the handle on the rosette using a sliding lever.

[0102] To enable the door to be locked to the handle by securing it to the rosette to prevent it from twisting, a stable and securely mounted rosette construction is required. Embodiments of the invention allow this to be achieved with flush-mounted rosettes, thus providing a high-quality appearance.

[0103] In contrast to the designs of the German patent application DE 10 2020 134 924.6, the substructure is adapted to achieve a return of the door handle. In some designs this is combined with a locking of the door in the handle.

[0104] According to some embodiments, the substructure features a recess on the inner radius, which is adapted to a locking element slidably provided on the door handle and serves as a counterbearing for this. The locking element is guided axially displaceably, particularly at the neck area, and engages in the recess with its protruding end in the locked position.

[0105] Furthermore, a modified external shape compared to the substructure design in German patent application DE 10 2020 134 924.6 creates a positive locking of the substructure in the door leaf. This positive locking ensures permanent locking of the handle in the locked state, should the handle be operated while locked.

[0106] In some designs, the recess on the substructure is designed to the side of the lock side of the door, so that with a modified handle design with a lateral sliding lever, it is possible to use one handle design on both the right and left.

[0107] An additional adjustment at the bottom, similar to the upper version, also allows for left-right use.

[0108] Embodiments of the invention are explained in more detail below with reference to the accompanying drawings, in which: Fig. 1 is a plan view of a swing door with a door leaf according to an embodiment of the invention; Fig. 2 is an exploded view in section along line AB of Fig. 1 on a door handle arrangement of the door leaf of Fig. 1 according to a first exemplary embodiment of the invention, wherein the door handle assembly comprises a handle set with at least one door handle and a flush-mounted door fitting for interacting with the door handle, wherein the door fitting comprises at least one substructure for pivotally supporting the door handle and a cover formed as a flat disc, e.g. in the form of a rosette; Fig. 3 shows a section along the line AB of Fig. 1 a door leaf body for forming the door leaf according to one of the embodiments of Fig. 2 ; Fig. 4 a view as in Fig. 3 , whereby on the door leaf body of Fig. 3the door fitting is arranged flush for interaction with the door handle; Fig. 5 a perspective view of a neck area of ​​the door handle, as shown in the Fig. 2 shown on the left; Fig. 6 a side view of a substructure body of the substructure according to a first embodiment; Fig. 7 a rear view of the substructure body of Fig. 6 , from the right into Fig. 6 seen; Fig. 8a front view of the substructure body of Fig. 6 , from left to Fig. 6 seen; Fig. 9 a side view of a spring element of the substructure of Fig. 2 ; Fig. 10 a top view of the spring element of Fig. 9 ; Fig. 11 a side view of a stop ring of the substructure of Fig. 2 ; Fig. 12 a top view of the stop ring of Fig. 11 ; Fig. 13 a side view of a rear cover of the substructure of Fig. 2 ; Fig. 14 a top view of the lid of Fig. 13; Fig. 15 a schematic side view of the substructure according to a second embodiment; Fig. 16 a schematic plan view of the substructure of Fig. 15 ; Fig. 17 a front view of a rotatable insert part of the substructure of the Fig. 15 and 16 according to an embodiment; Fig. 18 a rear view of the insert part of Fig. 17 ; Fig. 19a representation as in Fig. 2 with a variant of the door fitting and the handle set; and Fig. 20 a front view of the Fig. 20 The substructure body shown on the right serves as a counter bearing for a locking device.

[0109] The exemplary embodiments explained below relate to a Fig. 1Illustrated door leaf 10 with a door leaf 18 and an actuating mechanism 12 for actuating the door leaf 10, wherein the actuating mechanism 12 has at least one handle set 14 and a door fitting 16 arranged flush with a door leaf 18 of the door leaf 10. Furthermore, the door fitting 16 has a handle support 124 with a spring element 126, which exerts an elastic restoring force on at least one door handle 42, 42a, 42b of the handle set 14.

[0110] According to a study published in Fig. 19 to 20 In the embodiment shown, the actuating mechanism 12 has an optional locking mechanism 28 associated with the handle set 14.

[0111] The door with the door leaf 10 can be designed in different ways. For example, folding doors and sliding doors are possible. Fig. 1shows, as a preferred embodiment of a door provided with the door leaf 10, a revolving door 20 with a frame 22, to which the door leaf 10 is pivotally hinged about a lateral vertical axis by means of door hinges 24.

[0112] In the illustrated embodiments, the actuating mechanism 12 has only one door handle arrangement 26.

[0113] At the Fig. 19 and 20 In the variant shown, the locking mechanism 28 is assigned to the door handle arrangement 26 in order to block the door handle 42, 42a from being rotated in the locked state.

[0114] The door handle assembly 26 comprises the door fitting 16, designed as a handle fitting for pivotally supporting door handles 42, 42a, 42b of the handle assembly 14, the handle assembly 14, and a latch (not shown) on a lock 30 that can be actuated by the handle assembly 14. In the illustrated embodiments, the lock 30 is equipped only with the latch without a bolt.

[0115] In versions not shown, the operating mechanism 12 has, in addition to the door handle assembly 26, an additional locking mechanism for locking the door. For this purpose, the operating mechanism 12 can be provided with a conventional lock with a deadbolt. The lock can be designed as a warded lock operated with a warded key or as a profile cylinder lock.

[0116] As is well known, the lock 30 has a latch (not shown) that can be retracted against a preload by means of a square nut rotatable by the handle assembly 14. In the illustrated embodiments, at least part of the preload can be provided by the handle lift mechanism 124 in the door fitting 16. Thus, locks 30 that function only with the handle lift mechanism can also be used.

[0117] The door handle arrangement 26 is on the swing door 20 of Fig. 1 in the door handle area between the arrows A and B, and embodiments of the door handle area with the door handle arrangement 26 or of precursors for forming the same are shown in the sectional view along the line AB in the Fig. 2 to 4 and 19 shown.

[0118] The different embodiments of these door fittings 16 designed for pivot bearings each have a substructure 32, 32a, 32b and a cover 34 for each broad side 31a, 31b of the door leaf 10. Embodiments of the substructure 32, 32a, 32b are shown in the Fig. 2 , 4 , 6 to 14 , 15 to 18 and 20 Embodiments of the covers 34 are shown in the Fig. 1 , 2 , 4 and 19 shown.

[0119] The substructure 32, 32a, 32b has a substructure body 36 in which a substantially cylindrical through-opening 38 is formed in the center. The substructure body 36, and thus the through-opening 38 formed therein, has an axial extension—corresponding to the thickness of the substructure body 36—of at least 2 mm in order to provide sufficient bearing surface to absorb tilting moments on the door handles 42, 42a, 42b mounted therein. In particular, a thickness of 2 mm to 20 mm, preferably 3 mm to 10 mm, particularly preferably 4 mm to 7 mm, such as 5.5 mm, is provided for the substructure body 36.

[0120] At least one substructure 32, 32b on at least one of the broad sides 31b has at least one spring element 126, which exerts a restoring force on the door handle (42, 42a, 42b). As a result, the handle lift mechanism 124 is housed in the substructure 32, 32b, which is recessed into the door leaf. In the illustrated embodiments, the handle lift mechanism 124 is only provided in the substructure 32, 32b shown on the left in the figures. In other embodiments not shown in detail here, the substructure 32, 32a shown on the right can also be provided with the spring element 126 in a corresponding mirror image.

[0121] At least the substructure 32, 32b provided with the spring element 126 - so here in the examples in Fig. 2 , 4 and 19 the substructure 32b shown on the left - is held in the door leaf 18 in a rotationally secure manner.

[0122] For this purpose, the substructure 32, 32b has, as shown in the Fig. 6 to 7 and 15 and 16 As shown, the outer contour 102 has a non-circular outer contour. This can be designed in different ways. The outer contour 102 is preferably symmetrical to at least one center plane, preferably to two orthogonal center planes.

[0123] For example, the outer contour 102 is formed in plan view as a regular polygon, such as, in particular, substantially rectangular or, more preferably, square. In particular, corners of the outer contour 102 are rounded to facilitate the manufacture of a complementary inner contour 120 in the door leaf body 54 of the door leaf 18.

[0124] A substructure 32 which is not part of the handle support 126 - as in the examples of Fig. 2 and 4The substructure 32a shown on the right can, in principle, also be designed differently, e.g., have a circular outer contour. In preferred embodiments, these substructures 32a are also designed with the same outer contour 102, so that only one type of substructure body 36 needs to be provided, and a handle lift 126 can also be provided on both sides.

[0125] The inner diameter Di of the through opening 38 is precisely adapted to the outer diameter DT of a plug-in end 40 of the door handle 42, 42a, 42b of the handle set 14 to be mounted, i.e. just so much larger than the outer diameter of the plug-in end 40 that the plug-in end 40 can be inserted without play.

[0126] Examples of the handle set 14 are in Fig. 2 , 5 and Fig. 19indicated. The door handle set 14 comprises two door handles 42, 42a, 42b and a handle shaft 44, here in the form of a square shaft. The door handle 42, 42a, 42b has a handle body 46 with a gripping area and neck area 48 (not shown), and the insertion end 40 extending away from the handle body 46 with a uniform diameter DT, which is smaller than the diameter DDK of the handle body 46. Thus, a stop surface 50 is formed at the transition between the handle body 46 and the insertion end 40.

[0127] For use with a substructure 32 according to the Fig. 6 to 14In the illustrated embodiment, the door handle 42, 42b is provided with a spring receiving opening 128 into which the spring element 126 can engage. In the illustrated embodiments, the spring receiving opening 128 is formed by aligned grooves in the tubular wall of the insertion end 40. As a result, an open slot is formed on the insertion end 40, into which a rod-shaped portion of the spring element 126 can be inserted.

[0128] In the following, a first embodiment of the substructure 32, 32b provided with spring element 126 is described with reference to the illustration in the Fig. 6 to 14 explained in more detail.

[0129] The substructure 32, 32b has the Fig. 6 to 8 shown substructure body 36, which is in the Figs. 9 and 10 shown spring element 126, a in the Figs. 11 and 12 stop ring 130 shown and one in the Figs. 13 and 14 cover 132 shown.

[0130] The substructure body 36 has a recess 134 on the rear side facing the lock 30, in which the spring element 126 is at least partially received.

[0131] The recess 134 is, for example, annular. At least one projection 136.1, 136.2 projects into the recess 134 and forms at least one spring stop 138 extending radially with at least one directional component, against which the spring element 126 abuts or can be suspended. In the embodiment of the Fig. 6 to 8 a first and a second projection 136.1, 136.2 are provided, so that the spring element 126 can be applied to the first or second projection 136.1, 136.2, depending on the type of stop DIN, either on the right or left.

[0132] The spring element 126 is designed as a mechanical spring made of elastic metal and has at least one coil 140 extending around the through-opening, the ends of which are bent to form force introduction elements 142.1, 142.2. A first force introduction element 142.1 is rod-shaped and, during use, is inserted into the spring receiving opening 128. The second force introduction element 142.2 is designed to engage the projection 136.1, 136.2. For example, the second force introduction element 142.2 is bent into a hook shape so that it can be hooked onto the projection 136.1, 136.2 serving as a spring stop 138.

[0133] The stop ring 130 has an engagement formation 144 on its inner circumference for positively engaging the insertion end 40. In the illustrated embodiment, the engagement formation 144 has two opposing teeth 146.1, 146.2 for engaging the grooves that also form the spring receiving opening 128. Thus, the stop ring 130 is rotationally fixedly attached to the door handle 42, 42b. On its outer circumference, the stop ring has a first and a second stop 148.1, 148.2, which receive one of the projections 136.1, 136.2 of the substructure body 36 between them and thus limit the rotational movement of the door handle 42, 42b.

[0134] The cover 130 has an edge 150 with which the cover 130 can be fastened to the rear side of the substructure body 36 by means of a suitable fastening device such as screws, fastening clips, bayonet lock or gluing or welding with the spring element 126 and the stop ring 130 interposed.

[0135] The recess 134 is dimensioned in depth - ie the axial extent with respect to the axis of rotation of the handle set - such that the inserted spring element 126 and the stop ring 130 are axially positioned by the attached cover 130 and are held in position.

[0136] Furthermore, the cover 130 has a central cover through-opening 152, the diameter of which corresponds to the inner diameter D i of the through-opening 38 of the substructure body 36. With a corresponding axial length of the insertion end 40, the latter can thus be supported through the through-opening 38 of the substructure body 36 and through the cover through-opening 152. In the illustrated embodiment, the edge 150 of the cover 132 also has the non-circular outer contour 102 and, during use, is flush with the rear of the base body 36.

[0137] The Fig. 15 and 16The second embodiment of the substructure 32, 32b with spring element 126 shown corresponds in many elements to the first embodiment. Thus, here too, the recess 134 is provided on the rear side and at least one projection 136.1, 136.2 is provided as a spring stop 138. However, the first force introduction element 142.1 is not located directly on the door handle 42, 42b, but on a rotatable insert part 154 that is rotatably held in the substructure body 36. The insert part 154 has a sleeve area 156 for receiving the insertion end 40, which does not need to be provided with a spring receiving opening 128. In the Fig. 15 and 16In the embodiment shown, this sleeve region 156 forms a contact surface 92, to be explained later, for striking a stop surface 50 of the door handle 42, 42a, 42b to be inserted, and a projection 94 extending through the cover 34. Furthermore, the insert part 154 has an insert part through-opening 158 on its rear wall 160 that deviates from a circular shape. The insert part through-opening 158 positively receives the handle shaft 44 during use. Preferably, the contour of the insert part through-opening 158 is adapted to the outer contour of the handle shaft 44 and, for example, is square to accommodate a square.

[0138] A possible course of the spring element 126 on the insert part 154, which is made of plastic, for example, results from the representation of a comparative example of such an insert part 154, as shown in the Fig. 17 and 18 is shown. In Fig. 17 is the Fig. 15The front side is shown on the left, but in section without the contact surface 92 and the projection 94. The spring element 126, designed as a spring, is guided with its winding 140 in a cavity in the sleeve region 156. The first force introduction region 146.1, designed as a bend, is anchored in the wall of the sleeve region. The second force introduction region 146.2 is also designed as a bend such that, in the rest state, one of the projections 136.1, 136.2 provided in the recess 134 as a spring stop 138 can be received therebetween. An elongated hole is formed in the sleeve region 156, through which the second force introduction region 146.2 is guided and which permits the limited rotary movement of the handle shaft 44 and thus of the associated door handle 42a.

[0139] The first embodiment of the substructure 32, 32b with spring element 126 can be dimensioned axially smaller than the second embodiment, but this requires a door handle 42, 42b with spring receiving opening 128. If this is as in Fig. 2 and 5 The door handle 42, 42b, shown as a slot open at the free end, can be inserted into the through-opening 38 of the factory-assembled substructure 32, 32b, so that the rod-shaped first force introduction element 142.1 is inserted into the slot. The spring element 126 thus holds the door handle 42, 42b upright or, after actuation, guides it back to its normal position.

[0140] The second embodiment of the substructure 32, 32b with spring element 126 has the advantage that no slot or the like is required at the insertion end 40. The door handle 42, 42b is indirectly acted upon and held up or retracted by the spring element 126 via the handle shaft 44 and the insert part 154. However, greater axial space may be required than with the first embodiment.

[0141] In the following, further details of the embodiments of the actuating mechanism 12 will be discussed with reference to Fig. 2 to 4 as well as 19 and 20.

[0142] For some lever handle sets 14 on the market, the diameter DT of the insertion end 40 is DT = 16 mm. Accordingly, the diameter Di of the through opening 38 is, for example, in the range of 16.05 mm ≤ Di ≤ 16.10 mm.

[0143] The height and width DUa of the substructure body 36 is preferably in the range of 20 mm to 45 mm, more particularly in the range of 25 mm to 40 mm, preferably in the range of 29 mm to 33 mm.

[0144] The substructure body 36 is manufactured in particular as an injection-molded part from plastic, more particularly from polyoxymethylene (POM).

[0145] The substructure 32 has a support area 52 with which it is directly supported on a door leaf body 54 of the door leaf 18. The door leaf body 54 has a lock case recess 56, in which the lock 30 is preferably received with a precise fit, and a handle recess 58 that is formed continuously from the respective broad side 31a, 31b to the lock case recess 56. The handle recess 58 is preferably formed as a through-cut recess transversely through the door leaf body 54, which is made of machined materials, such as wood-based materials, solid wood, HDF, MDF, chipboard, plywood, laminated veneer lumber, plywood, optionally surface-coated or veneered. Thus, the recesses 58, 56, 66 to be provided in the door leaf body 54 for receiving the actuating mechanism 12 can be machined out of the door leaf body 54 by machining.Preferably, the lock case recess 56 is produced last.

[0146] The handle recess 58 is manufactured such that, at least in the area in which the substructure 32 is received, it has boundary walls 118 with an inner contour 120 complementary to the outer contour 102 of the substructure 32. Thus, the substructure 32 can be received in the handle recess 58 in a form-fitting, rotationally fixed manner.

[0147] The handle recess 58 has, as can be seen from Fig. 2 to 4 and 19, at least one step 60 for supporting the support area 52 of the substructure 32. For this purpose, the handle recess 58 has a further inner first area 62 with smaller dimensions D1 and a further outer second area 63 with larger dimensions D2, in which at least the support area 52 of the substructure 32 is accommodated.

[0148] In embodiments not shown in detail, the substructure body 36 with the non-circular outer contour 102 can be accommodated in the second larger region 63, so that this larger region 63 has the boundary walls 118, whose inner contour 120 is complementary to the outer contour 102. The dimensions D2 thus correspond to the height and width DUa of the substructure body 36 plus a small tolerance. The smaller region 62 can, for example, be circular in shape as a bore, where D1 denotes a diameter that is smaller than the height and width DUa of the substructure body 36.

[0149] In the preferred embodiment shown, the Fig. 2 to 4 and 19The substructure body 36 is accommodated in the smaller area 62, which has the boundary walls 118, whose inner contour 120 is complementary to the outer contour 102. In this embodiment, the dimensions D1 thus correspond to the height and width DUa of the substructure body 36 plus a small tolerance. The larger area 63 serves to accommodate the flange 90 of the substructure and the cover plate 34. The larger area 63 can, for example, be circular in shape to accommodate a circular cover plate 34, wherein the dimension D2 denotes a diameter that is slightly larger than the outer diameter DRa of the cover 34.

[0150] The cover 34 is in each case designed as a flat disc. For example, the cover 34 is made of metal, in particular steel, more particularly stainless steel, or other metal with a noble surface appearance, or of a material whose appearance is adapted to the surface of the area surrounding the door leaf 18 around the actuating device 12. For example, the cover 34 is formed from an HPL disc or a plastic disc. The cover 34 can have different contours. For example, the cover 34 can be designed as a door plate, which is provided with corresponding openings for the door handle 42 or possibly for the locking cylinder or key opening. The cover 34 is preferably as shown in the Fig. 2 , 4 , and 19 shown, designed as a rosette, ie as a ring-shaped element with a central opening.

[0151] To receive the insertion end 40, the cover 34 has a preferably substantially circular inner opening 64. The inner opening 64 preferably has a diameter DRi in the range of 17 mm to 30 mm, in particular 19 mm to 25 mm and most preferably between 20 mm and 22 mm, e.g. 20.5 mm.

[0152] When executing the Fig. 2 , 6 to 8 , 15 , 16 and 19 A projection 94 is formed on the substructure 32 to form a contact surface 92 for the door handle 42, in which the recess 110 is also completely accommodated. The central inner opening 64 of the cover 34 then has a larger inner diameter DRi through which the projection 94 can be passed. In the illustrated embodiments, the cover 34 is formed by an annular disc, the thickness of which is preferably in the range of 0.25 mm to 2 mm, preferably 0.5 mm to 1 mm, and most preferably between 0.6 mm and 0.8 mm.

[0153] Even when designed as a rosette, different outer contours of the cover 34 are possible. For example, the rosette can have a square, rectangular, or other polygonal contour on the outside. Preferably, the outer contour of the rosette is circular, preferably with an outer diameter DRa in the range of 30 mm to 65 mm, more preferably 40 mm to 60 mm, and most preferably between 50 mm and 55 mm, e.g., 52.5 mm.

[0154] In the following, the Fig. 1 to 4 and 19 as well as 20 Special features of the illustrated embodiments of the door leaf 10 are explained in more detail. Fig. 3 shows the section along AB through the door leaf 18, whose door leaf body 54 is already provided with the handle recess 58, even before the lock case recess 56 is inserted. Fig. 4 and Fig. 2 and 19also show the door fitting 16, once mounted on the door leaf 18 and once in a partially sectioned exploded view. Fig. 20 shows a plan view of the substructure 32, 32a according to the Fig. 19 embodiment shown on the right, wherein the position of the cover 34 in the assembled state is shown by a dash-dotted line.

[0155] The substructure 32 has the substructure body 36 with the non-circular outer contour 102, with a flange 90 protruding outwardly all around at a first end thereof. Preferably, the flange 90 is also formed with a contour corresponding to the outer contour 102—here, for example, square with rounded corners—at an end edge region of the substructure body 36 with flange dimensions DF that are—preferably by a few millimeters—larger than the corresponding outer dimensions DUa of the substructure body 36. For example, the flange dimension DF is 1 mm to 10 mm larger than the outer dimension DUa of the substructure body 36. The flange 90 has a significantly smaller axial extent (=flange thickness) than the substructure body 36. The flange thickness is selected to be just large enough that the flange 90 can serve as a support area 52 for positioning the substructure 32 without deformation.The substructure 32 is supported on the side of the flange 90 facing the other end of the base body 36.

[0156] Furthermore, a contact surface 92 is formed on the substructure 32 for directly supporting the stop surface 50. For this purpose, the axial annular projection 94 is formed around the through-opening 38 at the outwardly directed end of the substructure body 36, where the flange 90 is also arranged. The projection 94 has an outer diameter DKa that is dimensioned such that the projection 94 can engage precisely, i.e., without play, in the inner opening 64 of the cover 34.

[0157] In the handle recess 58 in the door leaf body 54 of the illustrated embodiments, only the further inner first region 62 is provided with a smaller dimension D1 and with the boundary wall 118 complementarily adapted to the outer contour 102, and the further outer second region 63 is provided with a wider diameter D2, which forms a modified form of the cover receiving region 68 as follows. The cover receiving region 68 formed by the second region 63 is still contoured to the cover 34 such that the cover 34 can be received therein with a precise fit. The depth of the second region 63, however, corresponds to the sum of the thickness of the cover 34 and the flange thickness. The flange 90 rests as the support region 52 on the step 60 formed between the first and second regions 62, 63.The inner contour 120 of the boundary wall 118 of the first area 62 is precisely adapted with its dimensions to the outer contour 102 of the substructure body 36.

[0158] The flange dimensions DF are significantly smaller than the diameter D2 of the second region 63 forming the cover receiving region 68. The second region 63 is precisely aligned with the associated nut of the lock 30.

[0159] To install the door fitting 16, the substructure 32 is inserted so that the substructure body 36 engages securely in the first area 62 and the flange 90 rests on the step 60. Hot melt adhesive 96 is then poured into the second area 63 and the cover 34 is inserted. While the hot melt adhesive is still liquid, the substructure 32 is radially aligned with the cover 34 in order to insert the projection 94 precisely into the inner opening 64. The height of the projection 94 is dimensioned such that it completely extends through the inner opening 64 or protrudes from it. The hot melt adhesive 96 is to be poured in such a way that the free spaces in the second area 63 are filled with it.

[0160] The handle assembly 14 is then attached, with the stop surfaces 50 resting directly on the associated contact surfaces 92. Shims 86 are therefore not necessary.

[0161] For further possible designs of the door leaf 10, reference is made to the reference [3], which shows various possible further designs of the door leaf 10 and the door provided with it.

[0162] At the Fig. 19 and 20 In the variant shown with a locking mechanism 28 that engages the handle set 14, one of the door handles 42—here, for example, the door handle 42a shown on the right—is designed with a locking element 104 that, in a locked position, engages a counterbearing 108 on the associated substructure 32 to secure the door handle 42 against rotation. Thus, the locking mechanism 28 is designed to prevent rotation of the door handle 42, 42a relative to the substructure 32 in the locked position and to enable rotation in the unlocked position.

[0163] The substructure 32, 32a interacting with the locking element 104 - in this example in Fig. 19 the substructure 32, 32a shown on the right - is also held in the door leaf 18 in a rotationally secure manner.

[0164] For this purpose, this substructure 32, 32a, which acts as a counter bearing, also has the non-circular outer contour 102.

[0165] At the Fig. 19 and 20 In the embodiment shown, at least one radial recess 110 is formed at the through-opening 38 of the substructure 32, 32a cooperating with the locking element 104 to form the counter-bearing 108. The radial recess 110 is designed in particular as an axially continuous and radially inwardly open groove 112.

[0166] The locking element 104 is arranged on the neck region 48 of the door handle 42a, shown here on the right, so as to be axially displaceable relative to the rotational axis of the neck region 48. It has a front end 105, which is advanced in the locking position to engage the recess 110 of the counter bearing 108. The front end 105 and the recess 110 are adapted to one another, so that the end 105 engages in the locking position essentially without play or with minimal play.

[0167] The locking element 104 is designed, in particular, as a slider that is mounted axially displaceably in the neck region 48. In the illustrated embodiments, the slider also includes the actuating element 106. The actuating element 106 is designed as a button or projection that protrudes from the pusher body 46 and can be moved by a user to move the locking element 104 from the locked position to the unlocked position and vice versa.

[0168] At the Fig. 19 In the embodiment shown, the locking element 108 is arranged on the upper side of the neck area 48 of the door handle 42a shown on the right. Fig. 20As shown, the recess 110 of the substructure 32 is also arranged at the top. In this configuration, the door handle 42a can only be used on the side intended for it. If the locking mechanism 28 is to be provided on the other side, a mirror-image door handle 42 must be provided. In other words, the other door handle 42b should then be equipped with the locking element 104.

[0169] The handle assembly 14 can, for example, be designed as described and shown in more detail in

[11] . For further possible embodiments of the actuating mechanism 12, reference is also made to German patent applications DE 10 2020 134 924 A1 and DE 10 2022 107 184.7, which are incorporated by reference and form part of the disclosure herein. In particular, the embodiments presented here can be combined as desired with further features of the embodiments of these German patent applications DE 10 2020 134 924 A1 and / or 10 2022 107 184.7.

[0170] Door leaves (10) with flush-fitting door fittings (16) for interacting with a door handle set (14) have been described, wherein a substructure (32, 32a, 32b) for rotatably supporting a plug-in end (40) of a door handle (42, 42, 42b) of the door handle set (14) is recessed under a cover (34) in a door leaf (18). In order to enable more convenient operation even when using different door handles (42, 42a, 42b) available on the market, optionally also with a locking mechanism (28) on the door handle (42a), it is proposed that the substructure be positively supported in the door leaf (18) to prevent rotation and have a spring element (106), in particular for holding the handle upright, for imposing a restoring force on the door handle (42b). List of reference symbols:

[0171] 10 Door leaf 12 Operating mechanism 14 Handle set 16 Door fitting 18 Door leaf 20 Swing door 22 Frame 24 Hinge 26 Handle arrangement 28 Locking mechanism 30 Lock 31a Wide side (for example, hinge side) 31b Wide side (for example, counter hinge side) 32, 32a, 32b Substructure 34 Cover 36 Substructure body 38 Through opening (of the substructure) 40 Insert end (door handle) 42, 42a, 42b Door handle 44 Handle shaft 46 Handle body 48 Neck area 50 Stop surface 52 Support area 54 Door leaf body 56 Lock case recess 58 Handle recess 60 Step 62 First area 63 Second area Area 64Inner opening (for door handle in cover / rosette) 68Cover receiving area 90Flange 92Contact surface 94Protrusion 96Hot melt adhesive 102Outer contour 104Latching element 106Actuating element 108Counter bearing 110Radial recess 112Groove 114Lock side 118Boundary wall 120Inner contour (complementary to outer contour) 122Latching element recess 124Lever handle support 126Spring element128 Spring receiving opening 130 Stop ring 132 Cover 134 Rear recess 136.1 First projection 136.2 Second projection 138 Spring stop 140 Winding 142.1 First force introduction area 142.2 Second force introduction area 144 Engagement formation 146.1 First tooth 146.2 Second tooth 148.1 First stop 148.2 Second stop 150 Edge 152 Cover through-opening 154 Insert part 156 Sleeve area (example for sleeve) 158 Insert part through-opening 160 Rear wall D i Inside diameter of the cylindrical through-opening DT Outside diameter of the insertion end D DK Diameter of the handle body D Ra Outside diameter of the rosette (cover 34) D Ri Inside diameter of the door handle rosette D Ai Inside diameter Cover receiving area DF Flange dimension D Ua Outer dimension (height, width) Substructure body D Ka Outer diameter projection

Claims

1. Door leaf (10) with a door leaf (18) with a door leaf body (54) and an actuating mechanism (12) which has a handle set (14) cooperating with a door fitting (16), wherein the door fitting (16) has a substructure (32) for pivotally mounting the handle set (14) and a cover (34) for covering the substructure (32), wherein the handle set (14) has a door handle (42, 42a, 42b) which has a gripping region and a neck region (48), wherein the neck region (48) comprises an insertion end (40), wherein the substructure (32) has a through-opening (38) into which the insertion end (40) can be inserted and rotatably mounted therein, wherein in the door leaf body (54) there is a lock case recess (56) for receiving a (42, 42a, 42b) operable lock (30) and at least one at least partially continuous handle recess (58) between at least one of the broad sides (31a,31b) of the door leaf (18) and the lock case recess (56), wherein the substructure (32) of the door fitting (16) is received in the handle recess (58) so that the door fitting (16) is flush with a surrounding surface, wherein the substructure (32) is received in the handle recess (58) in a form-fitting manner and secured against rotation, and wherein the substructure (32) has a spring element (126) which exerts a restoring force on the door handle (42, 42a, 42b).

2. Door leaf (10) according to claim 1, characterized by that the substructure (32) has a substructure body (36) which is positively received in the handle recess (58) in a manner secured against twisting, and to which the spring element (126) is fastened.

3. Door leaf (10) according to claim 2, characterized by thatthe substructure body (36) has at least one or more of the following areas: 3.1 a recess (134) on the rear side facing the lock (30), in which recess (134) the spring element (126) is at least partially received, 3.2 at least one spring stop (138) extending radially at least with a directional component, on which the spring element (126) engages, 3.3 at least one radial or axial projection (136.1, 136.2) as a spring stop and / or stop for limiting the handle movement.

4. Door leaf (10) according to one of claims 2 or 3, through this marked, thatthe substructure body (36) is designed as a plate body, wherein an outer contour (102) of the plate body, seen in plan view, is non-circular, angular, quadrangular, square, rectangular or in the form of another polygon or is symmetrical with respect to at least one central plane, wherein a radially inwardly directed boundary wall (118) of the handle recess (58) is designed to be complementary to the outer contour (102) of the substructure body.

5. Door leaf (10) according to one of the preceding claims, through this marked, thatthe spring element (126) 5.1 is designed as a spring with at least one winding (140) extending at least partially or completely around the through-opening (38) and a first force introduction region (142.1) which is fixed to the substructure (32) and a second force introduction region (142.2) which is fixed directly or indirectly to the neck region (48), and / or 5.2 engages in a spring receiving opening (128) in the neck region (48) or 5.3 engages in a sleeve (156) which is rotatable in the substructure, into which the neck region (48) is inserted and which is designed with a non-circular opening (158) for the positively locking reception of a handle shaft (44) of the handle set (14).

6. Door leaf (10) according to one of the preceding claims, through this marked, thatthe substructure (32) has a stop ring (130) which is connected in a rotationally fixed manner to the neck region (48) and limits an axial movement of the spring element (126) and a rotational movement of the door handle (42, 42a, 42b).

7. Door leaf (10) according to one of the preceding claims, through this marked, that the substructure (32, 32a, 32b) has a cover (132) on a rear side facing the lock (30) for axially positioning the spring element (126).

8. Door leaf (10) according to one of the preceding claims, through this marked, thatthe substructure (32, 32a, 32b) is fastened exclusively a) by positive locking on its outer contour (102) and by edging between a step (60) on the handle recess (58) and the cover (34) or b) by positive locking on its outer contour (102), by edging between a step (60) on the handle recess (58) and the cover (34) and by an adhesive connection.

9. Door leaf (10) according to one of the preceding claims, through this marked, that the handle set (14) has one or two door handles (42, 42a, 42b) which are mounted in associated substructures (32, 32a, 32b), and that a locking mechanism (28) is provided which prevents rotation of a lockable door handle (42a) of the handle set (14) relative to the substructure (32a) mounting this lockable door handle (42a) in the locking position and enables it in the unlocking position.

10. Door leaf (10) according to claim 9, characterized by that the locking mechanism (28) has a locking element (104) movable axially to the axis of rotation of the lockable door handle (42a) on a neck region (48) of the lockable door handle (42a) and a counter bearing (108) for the locking element (104) on the substructure (32a) pivotally supporting the lockable door handle (42a).

11. Door leaf (10) according to claim 10, characterized by that the counter bearing (108) has a radial recess (110) in the through opening (38).

12. Door leaf (10) according to claim 11, characterized by , 12.1 that the radial recess (110) is arranged on the lock side (114) of the substructure (32a) and / or 12.2 that a first and a second radial recess (110) are formed on two opposite sides of the through opening (38).

13. Door leaf (10) according to one of claims 9 to 12, through this marked, thatan actuating element (106) for actuating the movement of the locking element (104) is provided on the lockable door handle (42a).

14. Door leaf (10) according to claim 13, characterized by , 14.1 that the actuating element (106) projects displaceably from the neck region (48) of the lockable door handle (42a) and / or 14.2 that the actuating element (106) is arranged on the side of the neck region (48) facing away from the handle region.

15. A method for assembling a door fitting (16) for interaction with a handle set (14) having a door handle (42, 42a, 42b), wherein the door handle (42, 42a, 42b) comprises a neck region (48) with a larger diameter (DDK) and an insertion end (40) extending from the neck region (48) with a smaller diameter (DT), on a door leaf (18) having a door leaf body (54), wherein the method comprises the steps of: providing a substructure (32, 32a, 32b) for pivotally mounting the handle set (14) and a cover (34) for covering the substructure (32, 32a, 32b), wherein the substructure (32, 32a, 32b) has a partially cylindrical through-opening (38) for detachable insertion and rotatable bearings of the insertion end (40), wherein the substructure (32, 32a, 32b) has a non-circular outer contour (102) and has a spring element (126),Providing a lock case recess (56) for receiving a lock (30) and at least one at least partially continuous handle recess (58) between at least one of the two broad sides (31a, 31b) of the door leaf (18) and the lock case recess (56) in the door leaf body (54) such that the substructure (32) and the door fitting (16) can be received in the handle recess (58) such that the door fitting (16) is flush with a surrounding surface of the door leaf (18) and the substructure (32) can be supported on a step formed on the door leaf body (54) between the lock case recess (56) and a support region (52) of the substructure (32) and is positively secured against rotation by the non-circular outer contour (102), floating mounting of the substructure (32) in the Handle recess (58),Fixing the substructure (32) by the flush-fitted cover (34) or by the flush-fitted cover (34) and an adhesive (96) and inserting the door handle (42, 42a, 42b) into the through opening (38) while connecting the door handle (42, 42a, 42b) to the spring element (126) in such a way that the latter exerts a restoring force on the door handle (42, 42a, 42b) to return it to a normal position.

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