EP3612700B1 - Furniture wall with a flap fitting and a furniture body and furniture with such a furniture wall - Google Patents

Description

The invention relates to a furniture panel with an integrated or inserted flap fitting which has a lever mechanism with several levers for guiding a flap of a piece of furniture. The flap fitting has a spring unit which acts on at least one lever of the lever mechanism, a pretensioning of the spring unit being adjustable. The invention further relates to a furniture body or a piece of furniture with at least one flap fitting.

Furniture, in particular kitchen furniture or living room furniture such as base cabinets or wall cupboards, generally have a furniture body that is open to the front and on which movable furniture parts guided by fittings are mounted. In particular in the case of wall cupboards, flaps are often used as movable furniture parts to close the furniture body, which flaps are mounted via at least one, as a rule two, laterally arranged flap fittings. The flap fittings enable the flap to be opened upwards (pivoting up), whereby the flap can be pivoted, for example, about an imaginary pivot axis that runs horizontally and is arranged in the upper area of the furniture body. Other upward opening movements of a flap are also conceivable.

The lever mechanism of the flap fitting is usually designed in several parts as a multi-joint lever mechanism, so that a so-called door bearing lever, to which the flap is attached, executes a combined pivoting and sliding movement or a pivoting movement that takes place around a pivot axis that is outside the flap fitting and usually is also outside of the furniture body.

A flap fitting with a lever mechanism and a spring which acts on one of the levers is from the document CN 105 155 962 A known. The spring holds the guided flap with force applied both in the closed and in the fully open state. The force to be exerted on the lever mechanism by the spring, particularly in the open state, is heavily dependent on the geometry and weight of the guided flap. In order to ensure that flaps of different sizes and weights are reliably held in the open position, the spring preload of the spring is adjustable. For this purpose, a bearing point of the spring can be adjusted relative to a housing of the flap fitting via a spindle. The spindle is connected to a laterally accessible tool holder via a deflection gear. When mounting the flap fitting on a side wall of a furniture carcass, the preload of the spring in the interior of the furniture carcass can be adjusted with the flap open with the aid of a screwdriver as a tool.

The flap fitting described is suitable for mounting on an inside of a side wall of the furniture body. However, the fitting inevitably protrudes into the interior of the furniture carcass, which on the one hand reduces the usable storage space within the furniture carcass and on the other hand also impairs the structuring of the interior of the furniture carcass. Cleaning of the interior, in particular the inside of the side wall of the furniture body, is also made more difficult by the fitted fitting. Last but not least, a side wall on which no fittings are mounted is desirable for visual reasons.

To assemble door hinges, it is known to mill a pocket into an end face of a side wall of a furniture body, into which the door hinge can be inserted from the front. In this way, a side wall with an integrated door hinge is created, in which the inside of the side wall remains free. A hinge suitable for use in such a milled pocket is, for example, from the publication DE 1 559 963 known.

A furniture wall with an insertable or integrated fitting is also desirable for furniture with flaps because of the advantages mentioned. The one previously described from the publication CN 105 155 962 A However, known flap fitting is not suitable for integration or insertion into a furniture wall, since the spring preload is adjusted from the side, which is not possible with a side wall with a continuous inner surface.

the WO2016174071 discloses a furniture flap with an inserted flap fitting.

It is therefore an object of the present invention to create a furniture panel for a piece of furniture with an inserted or integrated flap fitting, in which lateral surfaces can be made continuous and yet simple adjustability of a pretensioning of a spring unit of the flap fitting is possible. It is another job of a furniture body and to specify a piece of furniture with at least one flap fitting and the listed advantages.

This object is achieved by a furniture panel, a furniture body or a piece of furniture with the features of the respective independent claim. Advantageous refinements and developments are the subject of the respective dependent claims.

A furniture panel according to the invention is characterized in that, in a closed position of the guided flap, the lever mechanism moves into a front opening of the flap fitting and the furniture panel, the preload being adjustable via an adjustment element with a tool holder and the tool holder being inserted through the front opening in which the lever mechanism retracts is accessible.

The front opening is provided in the flap fitting and the furniture panel in order to accommodate the lever mechanism when the flap is closed. According to the invention, this opening is also used to adjust the bias of the spring unit of the flap fitting and / or a transmission ratio between the spring unit and the lever mechanism. For this purpose, the tool holder is arranged and aligned in the flap fitting in such a way that it is accessible through the opening mentioned, which means that it can be adjusted without an additional, e.g. lateral adjustment opening having to be provided. A consistently homogeneous look of the side surfaces of the furniture board is thus retained.

In an advantageous embodiment of the furniture panel, the flap fitting has a spindle unit with a spindle with which a spring bearing can be moved, the spindle being coupled to the adjusting element. The spindle is preferably coupled to the adjusting element via an angular gear. Moving the spring bearing enables the spring preload to be adjusted in a simple and compact manner. With the angular gear, an adjustment can be made through the front opening of the furniture board, even if the spindle runs parallel or obliquely to the alignment of the front side.

The spindle can be dimensioned in such a way that it can directly absorb forces transmitted by the spring bearing. Alternatively, it is also possible to linearly place the spring bearing in a guide rail arranged parallel to the spindle to be displaceable so that forces are wholly or partially absorbed by the guide rail. The spindle can be dimensioned correspondingly weaker. The guide rail can be U-shaped, for example.

In a further advantageous embodiment of the furniture panel, the spring unit acts via a pressure roller on a control section of one of the levers of the lever mechanism, as a result of which the flap fitting is held in the closed and / or an open end position. The shape of the control section can be used to precisely specify how strong and in which direction the spring force acts on the lever mechanism as a function of the opening angle of the flap fitting.

According to the invention, the flap fitting has a housing which comprises two parallel spaced apart sides, for example formed by side plates. According to the invention, all hinge axes of the lever mechanism are positioned between the sides in a closed state of the flap fitting. A furniture panel is thus created that does not impair the appearance of the furniture body due to protruding components of the flap fitting. More preferably, the sides have an inner distance that is less than 16 millimeters (mm) and preferably less than 14 mm. Thus, despite the integrated flap fitting, furniture walls have the usual wall thickness of furniture bodies, which is important for the visual impression of the furniture and also ensures the unrestricted use of previously used processing machines.

In a further advantageous embodiment of the furniture panel, the sides of the flap fitting extend up to the front opening of the furniture panel, which is advantageous, among other things, for reasons of the strength of the furniture panel in the area of the opening. The sides can also be used to carry components of the flap fitting, for example the spindle unit is preferably attached to at least one of the sides.

According to the invention, the flap fitting is inserted into the furniture panel through the front opening of the furniture panel in a pocket formed behind the opening. Alternatively, the flap fitting can be integrated into this pocket when the side wall is manufactured. As an alternative, the flap fitting can be through a pocket that is held by a Side surface of the furniture board is introduced from and which has an opening on the front side, can be used laterally. In all the cases mentioned, the mentioned opening is formed in a front end face of the furniture panel, through which the lever mechanism of the flap fitting extends.

In a further advantageous embodiment, the furniture panel has no or almost no difference in thickness in the area of the flap fitting and outside this area.

In an embodiment according to the invention, the tool holder is accessible through the front opening of the furniture panel, whereby adjustability is provided without having to provide an additional opening.

Alternatively, but not according to the invention, the tool holder can be adjustable through a different end opening in the furniture panel than the aforementioned end opening in the furniture panel into which the lever mechanism moves. Although this is slightly more complex, it also enables an adjustment without the side surfaces of the furniture body being impaired.

In a further advantageous embodiment of the furniture panel, a scale is arranged on the adjusting element, which is visible to a user. Such a scale enables the spring preload, e.g. of the spindle unit, to be pre-set to specific values. In addition, the scale facilitates the same setting of several flap fittings that jointly guide a flap.

A side wall according to the invention for a furniture body is characterized by the use of at least one such furniture panel with an inserted or integrated flap fitting. A piece of furniture according to the invention with a furniture body and a guided flap is characterized by such a furniture body with at least one such side wall with an inserted or integrated flap fitting. The advantages mentioned in connection with the flap fitting result. In particular, a piece of furniture can be provided with a guided flap, the interior space of which can be used in its entire size, which can be freely designed and which is visually appealing.

Fig. 1a, 1b

eine isometrische Ansicht und eine Seitenansicht eines Klappenbeschlags in einer geschlossenen Stellung mit geöffnetem Gehäuse;

Fig. 2a, 2b

der Klappenbeschlag der Fig. 1a und 1b in einer isometrischen Ansicht bzw. einer Seitenansicht in einer geöffneten Stellung;

Fig. 3a, 3b

der Klappenbeschlag wie in Fig. 2b mit angesetztem Einstellwerkwerkzeug bei zwei verschiedenen Federeinstellungen;

Fig. 4a, 4b

der Klappenbeschlag wie in Fig. 1b mit angesetztem Einstellwerkwerkzeug bei zwei verschiedenen Federeinstellungen;

Fig. 5a, 5b

der Klappenbeschlag der vorherigen Figuren mit verschlossenem Gehäuse in einer geschlossenen (Fig. 5a) und einer teilgeöffneten (Fig. 5b) Stellung;

Fig. 6

eine Möbelplatte als Seitenwand eines Möbelkorpus mit einem integrierten Klappenbeschlag in einer isometrischen Ansicht; und

Fig. 7a-c

verschiedene Darstellungen eines Klappenbeschlags in einer alternativen Ausführungsform zur Verwendung in einer Möbelplatte gemäß Fig. 6.

The invention is explained in more detail below on the basis of exemplary embodiments with the aid of figures. The figures show:

Figures 1a, 1b

an isometric view and a side view of a flap fitting in a closed position with the housing open;

Figures 2a, 2b

the flap fitting of the Fig. 1a and 1b in an isometric view and a side view in an open position;

Figures 3a, 3b

the flap fitting as in Figure 2b with attached adjustment tool with two different spring settings;

Figures 4a, 4b

the flap fitting as in Figure 1b with attached adjustment tool with two different spring settings;

Figures 5a, 5b

the flap fitting of the previous figures with a closed housing in a closed ( Figure 5a ) and a partially open ( Figure 5b ) Position;

Fig. 6

a furniture panel as a side wall of a furniture body with an integrated flap fitting in an isometric view; and

Figures 7a-c

various representations of a flap fitting in an alternative embodiment for use in a furniture panel according to FIG Fig. 6 .

In the Fig. 1a and 1b or 2a and 2b is a first example of a flap fitting 1 in a closed position ( Fig. 1a , 1b ) and a fully open position ( Fig. 2a , 2 B ) a flap guided by the flap fitting 1 and not shown here is reproduced. the Fig.1a and 2a show the flap fitting in an isometric view and the Figure 1b or 2b in a side view.

In the description, terms such as above, below, left, right relate exclusively to the exemplary representation selected in the respective figures. The terms front and rear are usually related to an opening movement of the guided flap. The front side is a side facing the user.

A housing 10 of the flap fitting is shown open on one side in order to be able to reproduce the internal structure of the flap fitting 1. In all figures, the same reference symbols identify the same elements. For the sake of clarity, not every element in the figures is provided with a reference number.

In the present case, the housing 10 is formed from two side plates 11, of which only the rear one is shown in the figures. The side plates 11 are spaced from one another by a partially encircling frame 12 and are aligned parallel to one another. A plurality of rivets 13 (cf. Fig. 3a , 3b ), with which the housing 10 and thus the flap fitting 1 is held together. Instead of the rivets, other fastening means, such as screws, can also be used. The rivets 13 lead through widened sections 121 of the frame 12.

In the illustrated flap fitting 1, all other components are fastened to the side plates 11, for example likewise with rivets or bolts, which lead through one or both of the side plates 11.

The flap fitting 1 has a lever mechanism 20 with five levers which are connected to one another or to the housing 10 at seven hinge points. The flap fitting 1 is thus designed as a seven-joint hinge. The lever mechanism 20 comprises a door bearing lever 21 as the outermost link of the lever mechanism 20, which is connected to a mounting plate 31 via an adjusting device 30. The flap to be guided by the flap fitting 1 is mounted on this mounting plate 31. The adjustment device 30, which is shown in more detail in the following figures, enables an adjustment movement of the mounting plate 31 and thus of the guided flap with respect to the door bearing lever 21.

The door bearing lever 21 is on the in the Fig. 1a , 1b upper pivot point with a transmission lever 22 rotatably connected. In a lower pivot point in the figures, the door bearing lever 21 is connected to a reversing lever 23. The reversing lever 23 and the transmission lever 22 are in turn articulated on a control lever 24. The transmission lever 22 is connected at its rear end to a support lever 25, the support lever 25 in turn being rotatably mounted on the housing 10. This lever mechanism 20 thus results in a seven-link chain.

As from the Fig. 2a and 2 B As can be seen, the individual levers of the lever mechanism 20 are shaped in such a way that they form an approximately elongated arrangement in the open position of the flap. During the opening or closing process, the outer element of the lever system 20, the door bearing lever 21, performs a combined rotary and translational movement, by which an attached flap is not only pivoted, but moved forward so that its upper edge over an upper one or the top edge of the body can be guided.

The flap fitting 1 further comprises a spring unit 40, which holds the flap under spring force both in the closed and in the fully opened state. In particular in the fully open state, the spring unit 40 is able to compensate for the weight of the flap so that it remains in the open position without any further locking lever.

In the exemplary embodiment shown, the spring unit 40 comprises a spring assembly 41 with a plurality of compression springs 411. In alternative configurations, a spring unit can also have only one spring instead of a plurality of springs. A right-hand side of the spring assembly 41 in the figures is mounted in a fixed spring bearing 412. A left-hand side of the spring assembly 41 in the figures is mounted in a free spring bearing 413 at a shorter end of an angular intermediate lever 43, the intermediate lever 43 being designed as a bilateral lever and pivotably attached to the housing 10. At the end of the second, free lever arm of the intermediate lever 43, a pressure roller 431 is attached, which acts on a control section 221 of the transmission lever 22. The fixed spring bearing 412 fixes the right side of the spring assembly in the figures relative to the housing 10. The position of this fixed spring bearing 412 can, however, be adjusted by a spindle unit 42 in order to be able to set a spring preload and also an effective direction of the spring assembly 41 on the intermediate lever 43. The additions “fixed” and “free” in the case of the spring bearings 412, 413 relate to a position of the spring bearings 412, 413 during a movement of the lever mechanism 20. The fixed spring bearing 412 maintains its position, the free spring bearing 413 moves in accordance with the movement of the pressure roller 431 along the control section 221. Details of the spindle unit 42 are explained below.

The control section 221 extends at its edge in the shape of a dome with a rising (left side of the control section 221 in the figures) and a falling Edge (right side of the control section 221 in the figures). When the pressure roller 431 rests on the falling flank, pressure from the pressure roller 431 causes the lever mechanism 20 to move in the direction of the closed position. Correspondingly, the mounted flap is pressed shut or kept closed. During the opening movement, a dead center is passed when the pressure roller is currently on the top of the control section 221. In the further course of the opening movement, the pressure roller 431 rests on the rising flank of the control cam, the pressure of the pressure roller 431 causing the lever mechanism 20 to move further in the direction of the opening position. The opening movement is supported accordingly and the flap is held in the open position.

The spindle unit 42 comprises a spindle 421 which is rotatably mounted in a (here lower) first spindle bearing 422 and a (here upper) second spindle bearing 424. In addition, an angular gear is arranged in the first spindle bearing 422, which transmits a rotary movement of an adjusting element with a tool holder 423 to the spindle 421, for example via intermeshing bevel gears. The tool receptacle 423, for example a slot, a cross-slot, a hexagon socket or a multi-tooth receptacle, is directed forward in the direction of the open area of the housing 10 and is accessible from there.

The two spindle bearings 422, 424 are fastened to the housing 10 with fastening means 425. The fastening means 425 are, for example, rivets which, comparable to the rivets 13, are guided through both side plates 11, so that the spindle unit 42 is arranged and fastened between the two side plates 11.

By rotating the spindle 421, a spindle nut 426 moves along the spindle 421, the fixed spring bearing 412 being formed on the spindle nut 426. Correspondingly, a rotary movement of the tool holder 423 and thus of the adjusting element displaces the fixed spring bearing 412 along the spindle 421 and thus changes the spring preload and the direction of action of the spring unit 41 on the intermediate lever 43.

It should be noted that the spring action can be adapted not only by changing the spring preload, but alternatively and / or additionally also by changing a transmission ratio with which forces are transmitted from the spring unit to the lever mechanism.

A damping unit 50 is also provided, in the present case a linear damper operating as a pressure damper, against which a section of the transmission lever 22, specifically a part of the control section 221 of the transmission lever 22, moves in order to brake the lever mechanism 20 as it approaches the closed state.

In principle, the damping unit 50 could also be arranged elsewhere within the housing 10 and act on another lever or arm of the lever mechanism 20 in order to decelerate and thereby dampen an approach of the flap to one of the end positions (closed / open). In a further development, two independent damping units 50 can also be provided, one of which carries out a closing damping and the other an opening damping.

The adjustability resulting from the spindle unit 42 and an adjustment process of the spring unit 41 are shown in FIG Fig. 3a , b and 4a , b shown.

In the Fig. 3a is the flap fitting 1 in the same way as in Figure 2b shown in a fully open state of the door bearing 21 or a flap connected thereto. An adjusting tool 60 in the form of a screwdriver is inserted into the tool holder 423 of the spindle unit 21. A shaft of the setting tool 60 leads through the opening of the housing 10, into which the lever mechanism 20 plunges when the flap is closed. The flap fitting 10 can thus be adjusted from the front side of the flap fitting 10 when the flap is open.

Figure 3b shows the flap fitting 10 with a changed setting of the spring unit 40. In this position shown as an example, the fixed spring bearing 412 is from the top setting ( Fig. 3a ) has been moved to the lowest setting. The spindle unit 42 enables any intermediate position to be set. The pitch of the spindle 421 or the friction of the spindle nut 426 on the spindle 421 are selected so that the spindle unit 42 is self-locking. A set intermediate position is retained accordingly.

The change in the setting of the spring unit 40 changes, on the one hand, the spring preload of the compression springs 411 and, due to the different angle at which the spring assembly 42 acts on the intermediate lever 43, also changes the dynamics of the force of the spring assembly 41 on the lever mechanism 20 how these dynamics change and also the type of change in the spring preload depends on the alignment of the spindle unit 42 within the housing 10. For the structure shown, an alignment of the spindle unit 42 parallel to a front edge of the housing 10 has proven to be particularly advantageous.

In the Figure 4a and 4b is similar to that in the Fig. 3a and 3b an adjustment of the spindle unit 42 with the flap fitting 1 in the closed position is shown. Adjustment with the lever mechanism 20 retracted is possible if the flap fitting 1 is not connected to the attached flap and the mounting plate 31 is also not arranged on the adjusting device 30 of the door bearing lever 21. If only the door bearing lever 21 of the lever mechanism 20 is moved between the two side plates 11, a part of the opening of the housing 10 remains free in the lower area, through which the setting tool 60 can be guided. In this way, even when the flap is not attached, the spindle unit 42 can be preset to an expected setting, for example before the flap is installed, which then only needs to be corrected slightly if necessary.

In the Figure 5a and 5b FIG. 13 is an isometric view of the flap fitting of FIG Fig.1a to 2b with the housing 10 closed, ie with the second side plate 11 attached. the Figure 5a shows the flap fitting in a closed state of an attached flap (not visible here) and the Figure 5b a partially open state, the opening angle being around 10 degrees.

The housing 10 is closed in the area of the frame 12 by the rivets 13 already mentioned above. It goes without saying that instead of the rivets 13, other connecting elements can be used to close the housing 10, for example screws. Alternatively, the housing can also be closed by means of an adhesive connection between the side plates 11 and the frame 12.

especially the Figure 5a shows that in the closed position of the flap fitting 1, the entire lever mechanism 20 including the adjusting device 30 moves between the side plates 1.

In Fig. 6 a furniture panel is shown, which forms a side wall 2 of a furniture body, not shown, in which a flap fitting 1, for example as in the Figures 1a to 3b shown is integrated. A furniture body generally has at least two such side walls 2, with a corresponding flap fitting 1 according to the application being integrated in both. The two - or possibly further flap fittings 1, which are integrated in the partition walls of the furniture body - carry a flap that closes the furniture body towards the front.

In a front end face 3 of the side wall 2, an opening 4 is formed through which the lever mechanism 20 of the flap fitting 1 extends. The flap fitting 1 is either inserted through the opening 4 into a pocket formed behind it in the side wall 2 or is already integrated into the side wall 2 during the manufacture of the side wall 2 or through a pocket that is introduced from a side surface 5 and an opening 4 the end face 3, inserted laterally. In all cases, the flap fitting 1 is integrated in the side wall 2, at least in the first two cases the flap fitting is covered on its sides by side surfaces 5 of the side wall 2 and is therefore not visible from the outside or the inside of the furniture body. It is essential here that the flap fitting 1 and the side wall 2 form a unit and that the side wall 2 with the flap fitting inserted has no or almost no difference in thickness.

In order to be integrated into the furniture panel or side wall 2 of the furniture body, the thickness of the flap fitting 1, i. H. the outer distance of the side panels 11, severely limited by specifications regarding the wall thickness of the furniture body. In the case of customary side walls of furniture carcasses with a thickness of 16 millimeters (mm), the thickness of the flap fitting is necessarily less than 16 mm and is preferably less than or equal to 14 mm. Correspondingly, the lever mechanism 20 including the adjusting device 30 is designed so that it can be retracted between the two side plates 11 which have this spacing.

Side surfaces of the furniture panel or the side wall 2 can thus have a continuous surface that is not affected by any elements of the flap fitting 1 is interrupted. This is achieved in particular in that the tool holder 423 of the flap fitting 1 can be reached through the opening in the end face of the flap fitting and the furniture panel or the side wall 2.

In the Figures 7a to 7c a second example of a flap fitting 1 is shown, which in terms of its basic structure and in particular its lever mechanism 20 corresponds to the flap fitting 1 of the first example. This flap fitting 1 can also be inserted or integrated into a furniture panel, from which, for example, according to FIG Fig. 6 a side wall of a furniture body is made.

In these figures, the same reference symbols identify elements that are the same or have the same effect as in the previous figures. Reference is made explicitly to the description of the first example. In the following, the differences between the two examples are explained in more detail.

In the Figures 7a to 7c is the flap fitting 1 with the housing 10 open in two isometric views ( Figure 7a , 7c ) and a side view ( Figure 7b ) reproduced. the Figure 7a and 7b show the flap fitting in a closed and the Figure 7c in an open position of its lever mechanism 20.

The flap fitting 1 of the second example differs from the first example in the design of the spindle unit 42. As in the first example, the spring assembly 41 is slidable in position on one side in the fixed spring bearing 412 via the spindle unit 42 on the housing 10 and acts on its other End via the free spring bearing 413 onto the intermediate lever 43.

The spindle unit 42 differs in the second example in that the (only in Figure 7a visible) spindle is arranged in a U-shaped guide rail 427. The spindle nut 426 is guided in this U-shaped guide rail 427. In this embodiment, compressive forces acting on the spindle unit 42 from the spring assembly 41 are absorbed not only by the spindle 421, but in particular by the U-shaped guide rail 427. In addition, as shown in this example, a scale 428 can optionally be applied in the guide rail 427, the position of the spindle nut 426 on the scale 428 being visible through a slot in the guide rail 427. In this way, the spindle unit 42 can be preset specifically specified values are made. In addition, the scale 428 facilitates the same setting of several flap fittings 1, which together guide a flap.

Another difference in the second example relates to the design of the frame 12, which has reinforcing ribs 121 in particular in the area of the rear sections of the flap fitting 1 lying opposite the opening. In addition, the damping unit 50 is integrated into the frame 12 in this example. The integral design of the damping unit 50 in the frame 12 simplifies the assembly of the flap fitting 1, since the damping unit 50 does not have to be connected separately to the housing 10.

Reference number

1

Flap fitting

2

Side wall

3rd

Face

4th

opening

5

Side face

10

casing

11

Side plate

12th

frame

121

Reinforcement rib

122

common section

13th

rivet

20th

Leverage

21

Door bearing lever

22nd

Transmission lever

221

Tax section

23

Reversing lever

24

Control lever

25th

Carrying lever

30th

Adjusting device

31

Mounting plate

40

Spring unit

41

Spring package

411

Compression spring

412

fixed spring bearing

413

free spring bearing

42

Spindle unit

421

spindle

422

first spindle bearing

423

Tool holder

424

second spindle bearing

425

Fasteners

426

Spindle nut

427

Guide rail

428

scale

43

Intermediate lever

431

Pressure roller

50

Damping unit

60

Adjustment tool

Claims (17)

1. A furniture panel having an integrated or inserted flap fitting (1), which comprises a lever mechanism (20) having multiple levers for guiding a flap of an item of furniture, wherein the flap fitting (1) comprises a spring unit (40), which acts on at least one lever of the lever mechanism (20) using settable pre-tension, and wherein the flap fitting (1) comprises a housing (10), which comprises two parallel sides (11) spaced apart from one another, wherein the flap fitting (1) is inserted through an end-face opening (4) of the furniture panel into a pocket in the furniture panel formed behind the opening (4), or wherein the flap fitting (1) is integrated into this pocket during the production of the furniture panel, or wherein the flap fitting (1) is laterally inserted through a pocket, which is introduced from a lateral face (5) of the furniture panel and comprises an opening (4) on the end face (3), wherein the lever mechanism (20) retracts into an end-face opening of the flap fitting (1) and into the end-face opening (4) of the furniture panel in a closed position of the guided flap, wherein the pre-tension of the spring unit (40) and/or the transmission ratio between the spring unit (40) and the lever mechanism (20) is settable via an adjustment element having a tool receptacle (423), characterized in that all joint axes of the lever mechanism (20) are positioned between the sides (11) of the housing (10) in a closed state of the flap fitting (1), and in that the tool receptacle (423) is accessible through the end-face opening (4) of the furniture panel and the end-face opening of the flap fitting (1).
2. The furniture panel according to Claim 1, in which the flap fitting (1) comprises a spindle unit (42) having a spindle (421), using which a spring bearing (412) is movable, wherein the spindle (421) is coupled to the adjustment element.
3. The furniture panel according to Claim 2, in which the spindle (421) is coupled via an angular gear to the adjustment element.
4. The furniture panel according to Claim 2 or 3, in which the spring bearing (412) is guided so it is linearly displaceable in a guide rail (427) arranged parallel to the spindle (421).
5. The furniture panel according to Claim 4, in which the guide rail (427) is formed U-shaped.
6. The furniture panel according to one of Claims 1 to 5, in which the spring unit (40) acts via a pressure roller (43) on a control portion (221) of one of the levers of the lever mechanism (20) and holds the flap fitting (1) in the closed and/or an open end position.
7. The furniture panel according to one of Claims 1 to 6, in which the sides (11) of the flap fitting (1) press against the end-face opening (4) of the furniture panel.
8. The furniture panel according to one of Claims 1 to 7, in which the spindle unit (42) is fastened on at least one of the sides (11).
9. The furniture panel according to one of Claims 1 to 8, in which the sides (11) have an internal spacing, which is less than 16 mm and is preferably less than 14 mm.
10. The furniture panel according to one of Claims 1 to 9, in which the opening (4), through which the lever mechanism (20) of the flap fitting (1) extends, is formed in a front end face (3) of the furniture panel.
11. The furniture panel according to one of Claims 1 to 10, which has almost no thickness difference in the region of the flap fitting (1) and outside this region.
12. The furniture panel according to one of Claims 1 to 11, in which the tool receptacle (423) is accessible through the end-face opening (4) of the furniture panel.
13. The furniture panel according to one of Claims 1 to 11, in which the tool receptacle (423) is settable through a different end-face opening of the furniture panel than the end-face opening (4) of the furniture panel.
14. The furniture panel according to Claim 12 or 13, in which a scale (428), which is visible to a user, is arranged on the adjustment element.
15. A furniture body having at least one flap fitting (1), characterized in that the flap fitting (1) is inserted or integrated into a furniture panel according to any one of Claims 1 to 14.
16. The furniture body according to Claim 15, in which at least one side wall (2) is formed by the furniture panel.
17. An item of furniture having a furniture body and a guided flap, characterized in that the furniture body comprises at least one furniture panel according to any one of Claims 1 to 14.

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