EP3198097B1 - Furniture hinge - Google Patents

Description

The invention relates to a furniture hinge with a fastening section and a hinge part connected to it via a multi-axis articulated connection, a spring pretensioning the hinge part indirectly or directly, at least in a partial area of the adjustment path of the hinge part with respect to the fastening section, and wherein the spring is tensioned or tensioned between two spring bearings is tensionable.

Furniture hinges of this type are used, for example, to move a pivotable flap between an open and a closed position. Typically, so-called flap fittings of this type are used in furniture construction and in the area of overhead cabinets. There the flaps can be pivoted about a horizontal axis. In the intermediate travel path between the opening movement and the closing movement, such a flap fitting should ideally automatically hold the flap in an intermediate position. In the area of the opening stroke the flap can be held reliably and stably so that it no longer automatically falls into the closed position. In the area of the closing stroke, the flap should be reliably pulled into the closed position. To achieve such coordinated travel paths, furniture hinges are usually used in which spring-loaded control cams with complex control geometry are used. The disadvantage of these furniture fittings is that the preload applied by the spring is very high in the closed position and comparatively smaller in the open position. This leads to an unnatural sequence of movements, which the user sometimes finds annoying. This problem is further exacerbated when flaps of different weights are used on the furniture hinges. Such furniture hinges are for example from the EP 1713996 B1 or EP 2 762 666 A1 known.

It is therefore the object of the invention to provide a furniture hinge of the type mentioned in the introduction, in which an optimized closing movement is made possible.

This object is achieved according to the invention in that the spring is adjusted during the adjustment of the hinge part from the open to the closed position and / or during the adjustment from the closed to the open position in the area of its two spring bearings.

In contrast to the prior art, in which a spring bearing is always fixedly arranged and the second spring bearing is adjustable in relation to this in order to tension or relax the spring, the invention now takes a different approach. In the case of the furniture hinge according to the invention, both spring bearings are now adjusted during the opening and / or closing movement. The second spring bearing can thus be carried along during the movement sequence, so that the spring force of the spring can be regulated during the movement sequence. In particular, can thereby making a comparison or adjustment specifically tailored to the respective application. In particular, according to a corresponding design of the system, a hinge variant can also be implemented in which the second spring bearing is adjusted in the direction of the closing stroke in the area of the closing stroke in order to reduce the spring tension. Furthermore, provision can also be made accordingly that a possible furniture hinge is designed in the area of the opening stroke in such a way that the two spring bearings are adjusted in opposite directions in order to achieve additional tension on the spring. The furniture hinge according to the invention can be implemented by adjusting the two spring bearings, in particular also with a small design, since complex control mechanisms, such as control cams, can be dispensed with.

According to a preferred variant of the invention, it can be provided that at least one of the spring bearings is linearly adjustable by means of a linear guide or can be pivoted about an axis. A directed sequence of movements can be achieved with a linear guide. In addition, a comparatively large adjustment stroke is achieved with a linear guide in a small installation space. Alternatively, it can also be provided that the second spring bearing can be pivoted about an axis in order to effect the adjustment stroke on the second spring area. Finally, it is also conceivable that the second spring bearing can be adjusted on an arcuate path by means of a guide. In particular, this arcuate path can be designed in such a way that the spring bearing performs a combined linear and pivoting movement. With curved or pivotable spring bearings, the torque that is induced in the area of the spring bearing can also be varied.

A particularly preferred variant of the invention is such that the spring is coupled to a respective lever by means of the two spring bearings, the levers being pivotable relative to one another. In this way a simple kinematics is created, which is used to tension the spring. In the context of the invention, these two levers can be moved together, for example. Both spring bearings can be adjusted by the offset. As a result of the pivoting of the levers, the spring bearings can also be adjusted relative to one another.

In particular, it can be provided that the articulated connection is directly or indirectly coupled to the two spring bearings by means of an adjusting unit, and that the spring bearings are adjusted by means of the adjusting unit. In the above-described arrangement, which uses two levers, a simple hinge construction can be implemented in that the actuating unit acts on the connecting area of the two levers to which the spring bearings are coupled. For example, the actuating unit can act directly on the hinge point between the two levers or be coupled to this hinge.

The actuating unit is particularly preferably designed as a movable lever which is directly or indirectly coupled to the articulated connection via a joint forming a first axis of rotation. With such a furniture hinge, a low expenditure on parts and assembly can be achieved.

A possible variant of the invention can be such that a spring bearing is connected to a spring tensioner, by means of which the distance between the spring bearings can be adjusted. With the spring tensioner, the spring force can be adjusted to different flap weights, for example. A further preferred variant of the invention is such that the opening movement of the hinge part and / or the closing movement of the hinge part can be dampened at least in some areas by means of a damping element. With the damping element, the flap or door, which is linked to the furniture hinge, is gently pulled into the open or closed position, the damping force counteracting the tensile force of the spring. If it is provided that the damping element damps both in the opening and in the closing direction, then the number of parts for the furniture hinge can be minimized.

The damping element can be designed as a rotary damper or preferably as a linear damper and in particular as a fluid damper. Linear dampers have a comparatively simpler structure than rotary dampers, which has an advantageous effect on furniture hinges that are mass-produced.

The damping can then be easily integrated into the furniture hinge if it is provided that the damping element is effective in the functional area between the articulated connection and the spring.

The invention also relates in particular to a piece of furniture with a furniture body and a flap or door articulated thereon by means of a furniture hinge, the manual force required during the opening and / or closing movement remaining approximately constant. It is preferably provided that the required manual force remains constant with a deviation of +/- 30% in order to create the impression of a movement sequence that is as harmonious as possible for a user. Manual force is the force that must be applied to the actuating element of the flap or door in order to move the flap or door into the open and / or closed position.

Figur 1

in einer Seitenansicht ein Möbelscharnier in einer ersten Endstellung eines eingeklappten Scharnierteils bei geschlossenem Scharniergehäuse,

Figur 2

das Möbelscharnier aus Figur 1 bei geöffnetem Scharniergehäuse,

Figur 3

einen Ausschnitt des Möbelscharniers aus Figur 2 im Bereich eines Gelenkelements,

Figur 4

den Ausschnitt des Möbelscharniers aus Figur 3 in einer perspektivischen Darstellung bei teilausgeklapptem Scharnierteil,

Figur 5

den Ausschnitt des Möbelscharniers aus Figur 4 in einer Seitenansicht,

Figur 6

das Möbelscharnier aus Figur 2 in einer zweiten Endstellung bei ausgeklapptem Scharnierteil und

Figur 7

einen Ausschnitt des Möbelscharniers nach Figur 6 im Bereich des Gelenkelements.

The invention is explained in more detail below with reference to an exemplary embodiment shown in the drawings. Show it:

Figure 1

a side view of a furniture hinge in a first end position of a folded hinge part with the hinge housing closed,

Figure 2

the furniture hinge off Figure 1 with the hinge housing open,

Figure 3

a section of the furniture hinge Figure 2 in the area of a joint element,

Figure 4

the cutout of the furniture hinge Figure 3 in a perspective view with the hinge part partially unfolded,

Figure 5

the cutout of the furniture hinge Figure 4 in a side view,

Figure 6

the furniture hinge off Figure 2 in a second end position with the hinge part folded out and

Figure 7

a section of the furniture hinge Figure 6 in the area of the joint element.

Figure 1 shows a side view of a furniture hinge 10 in a first end position of a folded hinge part 20 with the hinge housing 31 closed. The hinge part 20 is used to couple a door or flap and can, as in the present case, be designed as a hinge arm.

The hinge housing 31 forms a fastening section 30 of the furniture hinge 10 with three fastening receptacles 32.1, 32.2, 32.3. In the illustration, the hinge housing 31 is closed by a housing cover 33. In the housing cover 33, a linear guide 34 and an adjustment opening 35 are provided as openings. Fastening points of a first joint 41.1, a second joint 41.2 and a swivel joint 81 are let into the housing cover 33.

The hinge part 20 is pivotably connected to the fastening section 30 via a multi-axis articulated connection 40. A first and a second adjusting screw 22.1, 22.2 are arranged along a back web 24 of the hinge part 20. Side legs 23 adjoin the back web 24 on both sides. The hinge part 20 carries a connecting element 21 which has connecting hooks 21.1, 21.2. Towards the joint, the side legs 23 merge into a joint guide 26 via an expansion area 25 reinforced with an embossing 25.1. A sixth joint 41.6 and a seventh joint 41.7 of the multi-axis joint connection 40 (in the present case a seven-joint chain) are arranged on the joint guide 26.

The multi-axis joint connection 40 is connected to the fastening section 30 via the first and second joint 41.1, 41.2 and to the hinge part 20 via the sixth and seventh joint 41.6, 41.7.

Opposite the articulated connection 40, a lever, which in the present case is designed as a spring tensioner 80, is attached to the fastening section 30 via the rotary joint 81. The spring tensioner 80 is assigned a tensioning element 84, consisting of a knurled screw 84.1 with a knurled head 84.2 and a slide 84.3 with a spring bearing 84.4 attached to it. The slide 84.3 is slidably mounted on a slide rod 83. The slide rod 83 and the knurled screw 84.1 are fixed at the end on a common base 82 which establishes the connection to the fastening section 30 of the furniture hinge 10.

A spring 76 is suspended from the spring bearing 84.4 and is fastened with its opposite end to a spring bearing 74. The spring bearing 74 is connected at the end to a first lever, which in the present case is designed as a connecting lever 72, via a pin 74. The connecting lever 72 is guided with a guide pin 73 in the linear guide 34 attached to the housing cover 33.

In the assembled state, the hinge part 20 is assigned to a cabinet door or a flap and the fastening section 30 is assigned to a body of a piece of furniture (not shown). The connecting element 21 engages with the connecting hooks 21.1, 21.2 in a connecting piece (not shown) which is fastened to the cabinet door or the flap. The cabinet door or the flap can be aligned with respect to the body using the adjusting screws 22.1, 22.2. The fastening section 30 is fastened to the body by means of fastening means, not shown, which are guided through the fastening receptacles 32.1, 32.2, 32.3.

When the cabinet door or the flap is opened, the hinge part 20 is moved from the closed first end position shown into an in Figure 6 shown open second end position pivoted. From a certain position of the hinge part 20, the spring 76 causes the cabinet door or the flap to open automatically. Accordingly, the spring 76 pulls the hinge part 20 back into its first end position on its last movement section when the cabinet door or the flap is closed. By means of the spring tensioner 80, the preload of the spring 76 and the torque acting around the swivel joint 81 as a result of a variation in the distance between the swivel joint 81 and the spring bearing 84.4 can be adapted to the respectively mounted cabinet door or flap, so that cabinet doors or flaps with different weights or dimensions such as described can be opened or closed. This can be achieved in that the slide 84.3 of the clamping element 84 by turning the knurled screw 84.1 on its knurled head 84.2 is adjusted along the slide rod 83 until the desired preload of the spring 76 connected to the slide is present, and / or the desired torque is set.

Figure 2 shows the furniture hinge 10 Figure 1 with the hinge housing 31 open. The same components are here as in Figure 1 called introduced.

The hinge housing 31 is closed at the rear with a housing rear wall 36, which has the same feedthroughs, joint receptacles and fastening receptacles 32.1, 32.2, 32.3 as the one in FIG Figure 1 Has housing cover 33 shown. Components of the furniture hinge 10 can thus be held or guided between the housing cover 33 and the housing rear wall 36. The furniture hinge 10 can be mounted on the right as well as on the left side of a cabinet body, with either the housing rear wall 36 or the housing cover 33 resting against the cabinet wall.

A first articulated lever 42.1 of the multi-axis articulated connection 40 is arranged between the seventh articulation 41.7 on the articulation guide 26 of the hinge part 20 and a fifth articulation 41.5 which is displaceable in its position. Accordingly, one is in the Figure 3, 4 and 6th The illustrated second articulated lever 42.2 is arranged between the sixth articulation 41.6 on the articulation guide 26 of the hinge part 20 and a third articulation 41.3 which is also displaceable in its position. A third articulated lever 42.3 is rotatably attached to the hinge housing 31 by means of the second articulation 41.2. The third articulated lever 42.3 is rotatably connected in its central area via a fourth articulation 41.4 also approximately centrally to the second articulated lever 42.2.

An approximately triangular joint element 43 is rotatably connected to the hinge housing 31 at one corner via the first joint 41.1. At an opposite corner of the joint element 43, it is rotatably connected to the second joint lever 42.2 via the third joint 41.3. At a third corner of the joint element 43 pointing away from the multi-axis joint connection 40, a first axis of rotation 44 in the form of a further joint axis is arranged. The joint element 43 is here rotatably connected to one end of a curved movable lever 70.

The joint element 43 has two joint plates 43.1, 43.2 arranged at a distance from one another and arranged opposite one another, wherein in the in Figure 2 selected representation, the front first hinge plate 43.1 can be seen. The ones in the Figures 4 , 5 and 6 The rear second hinge plate 43.2 shown is covered by the first hinge plate 43.1. In the central area of the hinge plates 43.1, a guide 46 is provided in the form of elongated holes each aligned in the direction of the first hinge 41.1. An adjusting element 50 is arranged between the guide 46 and the first joint 41.1.

A linear damping damping element 60 is rotatably and displaceably supported by a guide element 45 in the elongated holes of the guide 46. At its opposite end, the damping element 60 is rotatably attached to the movable lever 70 with a counter bearing 61.

The movable lever 70, the base 82 of the spring tensioner 80 and the connecting lever 72 are each connected to one another at the end via a hinge axis 71.

With its 7 joints 41.1, 41.2, 41.3, 41.4, 41.5, 41.6, 41.7, the multi-axis joint connection 40 forms a known 7-joint connection between the hinge part 40 and the fastening section 30. When opening the hinge part 20 in one in Figure 6 In the open second end position shown, the third articulated lever 42.3 is rotated about the second joint 41.2 and the joint element 43 with its first and second joint plates 43.1, 43.2 is rotated about the first joint 41.1. As a result, the first axis of rotation 44 is pivoted clockwise about the first joint 41.1 in the selected representation. The first axis of rotation 44 crosses the connecting line between the guide element 45 and the counter bearing 61 and thus between the support bearings of the damping element 60. Starting from the illustrated first end position, the distance between the guide element 45 and the counter bearing 61 is increased until the guide element 45, the first axis of rotation 44 and the counter bearing 61 lie on a line. If the joint element 43 is rotated further about the first joint 41.1 beyond this point, the distance between the guide element 45 and the counter bearing 61 is reduced again. When the hinge part 20 is folded back, the sequence of movements takes place in the reverse order. The damping element 60 thus undergoes a maximum deflection within the adjustment movement during a folding movement of the hinge part 20 between the two end positions when crossing the connecting line of the support bearings of the damping element 60 with the first axis of rotation 44. During the continuing rotary movement, the deflection of the damping element 60 is reduced again.

The damping element 60 used has a damping effect only in one adjustment direction when the damping element 60 is pushed together. In the sequence of movements described, there is therefore no damping of the movement of the joint element 43 and the hinge part 20 until the maximum deflection of the damping element 60 is reached. After the maximum deflection, the damping element 60, however, has a damping effect on the movement of the joint element 43 and thus, transmitted by the multi-axis Articulated connection 40, on the movement of the hinge part 20. Since the direction of adjustment of the damping element 60 both when folding as is also reversed when the hinge part 20 is unfolded, its movement is damped in each case before one of the end positions of the hinge part 20 is reached. As a result, both a damped opening and a damped closing of a cabinet door or flap fastened to the hinge part 20 are achieved with only one damping element which dampens linearly in one direction.

As a result of the spring 76 tensioned between the spring tensioner 80 and the connecting lever 72, the spring tensioner 80 is rotated in opposite directions about the swivel joint 81 and the connecting lever 72 about the guide pin 73. As a result, a compressive force is transmitted via the common hinge axis 71 to the movable lever 70 and from this to the hinge element 43 at the first axis of rotation 44. In this way, a torque is transmitted to the joint element 43, which in the in Figure 2 The shown orientation of the joint element 43 in the folded end position of the hinge part 20 acts counterclockwise. The torque thus counteracts a rotary movement of the joint element 43 when the hinge part 20 is unfolded. If the hinge part 20 is opened against the action of the spring 76 so far that the first axis of rotation 44 crosses the connecting line between the first joint 41.1 and the joint axis 71, the compressive force transmitted by the movable lever 70 causes a clockwise torque and thus in the direction the rotational movement of the joint element 43 caused by the unfolding of the hinge part 20. From this moment onwards, the transmitted spring force supports the movement of the hinge part 20. By a corresponding design of the spring 76 it is achieved that the hinge part 20, after it has been partially opened, independently up to its open end position unfolds. The movement is dampened by the damping element 60 before the open end position is reached. Correspondingly, the reverse sequence of movements takes place when the hinge part is folded in. Here, too, the spring force acts initially counteracts the folding in of the hinge part 20 before it acts in the direction of movement of the hinge part 20 after the first axis of rotation 44 has crossed the connecting line between the first joint 41.1 and the joint axis 71. As a result, the last movement section of the hinge part 20 takes place automatically when it is folded in.

By means of the tensioning element 84 of the spring tensioner 80, the pretensioning of the spring 76 and the torque generated by the spring 76 can be adapted in such a way that an automatic movement of the hinge part is made possible with cabinet doors or flaps of different weights guided by the hinge part 20. For this purpose, the position of the slide 84.3 is shifted along the slide rod 83 with the aid of the knurled screw 84.1.

By mounting the damping element 60 with its counter bearing 61 on the movable lever 70, it is achieved that the distance between the counter bearing 61 and the first axis of rotation 44 remains the same regardless of the position of the joint element 43 and the movable lever 70. The adjustment of the damping element 60 and thus its damping stroke is thus predetermined by the position in which the guide element 45 is held on the joint element 43 and pivoted about the first axis of rotation 44, and the angle of rotation between the joint element 43 and the movable lever 70.

Due to the position of the guide element 45 on the joint element 43 and the pivoting range of the guide element 45 about the first axis of rotation 44, the damping stroke of the damping element when the hinge part 20 is opened and closed can be carried out differently. In the exemplary embodiment shown, it is provided that when the hinge part 20 is unfolded from the in Figure 2 first end position shown in Figure 6 shown second end position to To achieve the maximum deflection of the damping element 60, the guide element 45 first traverses a comparatively large angular range with a correspondingly large adjustment of the damping element 60. After the maximum deflection, a comparatively small angular range is passed through with a correspondingly smaller adjustment of the damping element 60. When the hinge part 20 is folded in, the sequence of movements is reversed. The damping stroke when the hinge part 20 is opened is thus selected to be smaller than the damping stroke when the hinge part 20 is folded in.

In contrast, when the spring force is entered, when the hinge part 20 is opened, the first axis of rotation 44 as a coupling point for the spring force into the joint element 43 already crosses the connecting line between the first joint 41.1 and the joint axis 71 after a brief rotational movement around the first joint 41.1. The spring force thus only counteracts the movement of the joint element 43 and thus of the hinge part 20 in a first small range of movement, in order then to act over a large range of movement in the direction of movement of the joint element 43 and thus of the hinge part 20. Here, too, the sequence of movements is reversed when the hinge part 20 is folded in. The spring 76 thus acts over a large range of movement of the hinge part 20 in the direction of an open position of a cabinet door or flap attached to the hinge part 20 and only in the immediate vicinity of the closed position to the effect that the cabinet door or the flap is closed.

This asymmetrical effect of both the damping element 60 and the spring 76 when opening and closing the hinge part 20 ensures that the opening of a cabinet door or flap against the force of gravity, supported by the spring 76, takes place smoothly or automatically in a final movement segment. The movement is dampened shortly before the end of the opening process. When closing the cabinet door or the flap, however, a significantly longer damping stroke is provided in order to prevent the cabinet door or the flap from opening on a cabinet body. The cabinet door or the flap is automatically pulled into its closed position in its last range of motion.

By adjusting the spring preload, the furniture hinge 10 can be adapted to cabinet doors and flaps of different weights.

Figure 3 shows a section of the furniture hinge Figure 2 in the area of an articulation element 43 with the hinge part 20 folded in. The housing cover 33 and the first articulation plate 43.1 of the articulation element 43 are shown semitransparently in order to allow a view of the components behind it.

The guide element 45 as a support bearing for the damping element 60 is mounted in the guide 46 on the joint element 43. The guide 46 is implemented by elongated holes which are attached congruently both in the first joint plate 43.1 and in the second joint plate 43.2, which is arranged in a concealed manner. The guide 46 thus enables a rotary movement as well as a linear adjustment of the guide element 45 mounted therein. The elongated holes are spaced apart from the first axis of rotation 44 in the direction of the first joint 41.1. The adjusting element 50 is arranged between the guide 46 and the first joint 41.1. How too Figure 4 As shown, the setting element 50 is rotatably mounted between the first and second joint plates 43.1, 43.2 of the joint element 43. For this purpose, a tool engagement 51 is introduced into a corresponding opening in the first joint plate 43.1. How to Figure 4 shown, the setting element 50 is furthermore provided by an eccentric 52 with a first and a second eccentric disk 52.1, 52.2 educated. Each eccentric disk 52.1, 52.2 is assigned a locking curve 52.3, 52.4 on the circumference. The eccentric disks 52.1, 52.2 are spaced apart by an axis 53.

How out Figure 3 As can be seen, the eccentric 52 can be rotated in such a way that it covers part of the elongated holes of the guide 46 with its outer circumference and its locking cams 52.3, 52.4. As a result, an adjustable, variable end 46.1 with the eccentric 52 as a stop for the guide element 45 is created on the region of the guide 46 facing the first joint 41.1. On the opposite side, a fixed end 46.2 delimits the guide 46.

When the hinge part 20 is folded into the illustrated closed position, the guide element 45 is pressed against the variable end 46.1 of the guide by the damping element 60 that counteracts the movement. By turning the setting element 50, the stop for the guide element 45 can be shifted in accordance with the locking cams 52.3, 52.4. In this way, the position of the guide element 45 in the shown folded-in position of the hinge part 20 is predetermined by the setting element 50 in the effective direction of the damping element 60. The adjustment path of the damping element 60 and thus the damping stroke when the hinge part 20 is folded in can thus be adjusted by means of the adjustment element 50. With the in Figure 3 shown setting of the setting element 50, which allows a maximum linear movement of the guide element 45 in the guide 46, a smallest adjustable damping stroke. If the setting element 50 is rotated in such a way that the locking cams 52.3, 52.4 protrude maximally into the elongated holes of the guide 46, so that the guide element 45 is displaced in the direction of the fixed end 46.2 of the guide 46, a maximum damping stroke of the damping element is achieved when the hinge part is folded in 20 reached. The damping stroke between the two extreme positions can be set by means of corresponding intermediate positions of the setting element 50. By working together the locking cams 52.3, 52.4 with the guide element 45 ensures that the setting element 50 can only be set in predetermined locking positions. This enables reproducible setting of the damping stroke and locking of the selected setting.

In the in Figure 3 The folded end position of the hinge part 20 shown in the figure, the tool engagement 51 of the setting element 50 is covered by the housing cover 33. When the hinge part 20 is opened, the tool engagement 51 pivots into the area of the adjustment opening 35 of the housing cover 33. The damping stroke can then be adjusted with the cabinet door or flap open.

One in Figure 4 The piston rod 63 shown is guided and protected by a cover 62.

Figure 4 shows the section of the furniture hinge 10 from Figure 3 in a perspective view with the hinge part 20 in a partially open position. The first hinge plate 43.1 of the hinge element 43 is shown transparently.

The piston rod 63 of the damping element 60, which is partially encompassed by the cover 62, has at its end a guide element receptacle 64 in which the guide element 45 designed as a transverse pin is held. An adjusting element 65 in the form of a shoulder is formed on the guide element receptacle 64. In the position of the hinge part shown, the adjusting element 65 is aligned with the axis 53 of the adjusting element 50 and rests against it.

By means of the adjusting element 65, the guide element 45 is shifted to the fixed end 46.2 of the guide 46, independently of the setting of the adjusting element 50. When opening the hinge part 20 from its closed end position in its open end position, the guide element 45 is therefore inevitably moved from the variable end 46.1 of the guide 46 to its fixed end 46.2 and held there. The position of the guide element 45 when the hinge part 20 is opened is thereby fixed. In this way, the damping stroke of the damping element 60 when the hinge part 20 is opened is also fixed, while the damping stroke when the hinge part 20 is folded in can be set by the setting element 50.

In the illustrated maximum setting of the setting element 50, the guide element 45 is also held by the eccentric 52 on the side of the fixed end 46.2 of the guide 46. A maximum damping stroke is thus set when the hinge part 20 is folded in and thus when a cabinet door or flap attached to the hinge part 20 is closed.

Figure 5 shows the section of the furniture hinge 10 from Figure 4 in a side view with the hinge part 20 partially unfolded. The first hinge plate 43.1 is shown partially transparent.

To reach the intermediate position shown, the guide 46 with the guide element 45 was pivoted clockwise about the first joint 41.1 when the hinge part 20 was opened, starting in the closed position shown in FIG. As a result, the adjusting element 65 was aligned on the axis 53 of the adjusting element 50 and the guide element 45 was pressed against the fixed end 46.2 of the guide 46. During the further movement in which the guide element 45 is pivoted clockwise about the first axis of rotation 44, the piston rod 63 of the damping element 60 is pushed into the damping element by the guide element 45, thereby causing the damping. The damping stroke is fixed by the fixed positioning of the guide element 45 at the fixed end 46.2 of the guide 46.

Figure 6 shows the furniture hinge 10 Figure 2 in a second end position with the hinge part 20 folded out. The first hinge plate 43.1 is not shown.

By unfolding the hinge part 20, the second joint plate 43.2 of the joint element 43 is pivoted about the first joint 41.1. As a result of the movement of the joint element 43, the first axis of rotation 44 is opposite its in Figure 2 has changed to the opposite side of the damping element 60 and has crossed the connecting line between the guide element 45 and the counter bearing 61. This takes place to Figure 2 reversal of movement of the adjustment of the damping element 60 as described.

The adjusting element 65 is guided past the axis 53 of the adjusting element 50, but still rests against it in such a way that the guide element 45 is held at the fixed end 46.2 of the guide 45.

When the hinge part 20 is unfolded, the hinge axis 71 pivots as a connection point between the movable lever 70, the connection lever 72 and the base 82 of the spring tensioner 80 about the in Figure 2 The swivel joint 81 shown. The rotation takes place in the present illustration in a clockwise direction. During the folding movement thus generated between the base 82 and the connecting lever 72, the spring 76 is relaxed and the released energy is transmitted via the movable lever 70 to the multi-axis articulated connection 40 and thus the swivel arm 20.

The movable lever 70 and the connecting lever 72 are arranged and shaped in such a way that they do not cross the positions of the fastening receptacles 52.1, 52.2, 52.3 when they move between the two end positions, regardless of the setting of the spring tensioner 80 or the setting element 50. Fastening elements can thus be guided through the fastening receptacles 52.1, 52.2, 52.3 without blocking the movement of the hinge part 20.

Figure 7 shows a section of the furniture hinge 10 Figure 6 in the area of the joint element 63. The first joint plate 63.1 of the joint element 63 and the housing cover 33 are shown partially transparent.

The position of the joint element 63 is shown when the hinge part 20 is folded out into its second end position. In this position, the tool engagement 51 of the setting element 50 is positioned opposite the setting opening 35 in the housing cover 33 and is therefore accessible from the outside.

The guide element 45 is held on the fixed end 46.2 of the guide 46, whereby the deflection of the damping element 60 in this position of the joint element 63 and thus of the hinge part 20 is fixed.

As explained above, the spring 76 is further stretched or relaxed during the opening process or during the closing process. This is effected by pivoting the two levers (spring tensioner 80 and connecting lever 72 against each other. Both spring bearings 84.4 and 75 move simultaneously. While spring bearing 84.4 pivots about swivel joint 81, spring bearing 74 is displaced linearly by linear guide 34. The offset occurs here in the depth direction of the furniture hinge 10. The control of the movement of the spring bearing 74 is controlled so that it is in the closed position according to FIG Fig. 2 towards the spring bearing 84.4 is postponed. Consequently, a reduction in the spring tension is achieved by the displacement. At the in Fig. 6 In contrast, the open position shown, the spring bearings 74 and 84.4 are shifted in opposite directions. In addition to the tension of the spring 76 caused by the spring tensioner 80, an additional spring tension is thus achieved as a result of an opposite displacement of the spring bearing 74 in the linear guide 34. By controlling the two spring bearings 84.4 and 74, the spring force can be made more uniform in such a way that manual force that is as uniform as possible is required to move the flap from the closed to the open position or vice versa. The displacement of the spring bearing 74 takes place by means of the movable lever 70. This consequently takes on the function of an actuating unit.

Claims (12)

1. Furniture hinge having a fastening section (30) and a hinge part (20) connected thereto via a multi-axial articulated connection,
   wherein a spring (76) biases the hinge part (20) indirectly or directly at least in a partial range of the adjustment path of the hinge part (20) relative to the fastening section (30),
   wherein the spring (76) is tensioned or can be tensioned between two spring bearings (74, 84.4),
   characterized
   in that the spring (76) is adjusted in the region of its two spring bearings (74, 84.4) during the adjustment of the hinge part (20) from the open position to the closed position and/or during the adjustment from the closed position to the open position.
2. Furniture hinge according to claim 1,
   characterized
   in that at least one of the spring bearings (74, 84.4) is linearly adjustable or pivotable about an axis by means of a linear guide (34), or is adjustable on an arcuate path by means of a guide.
3. Furniture hinge according to claim 1 or 2,
   characterized
   in that the spring (76) is coupled by means of the two spring bearings (74, 84.4) to a respective lever (connecting lever (72); spring tensioner (80)),
   the levers being pivotable relative to one another.
4. Furniture hinge according to claim 3,
   characterized
   in that the two levers are connected to one another via a joint, forming a common joint axis (71).
5. Furniture hinge according to any one of claims 1 to 4,
   characterized
   in that the articulated connection (49) is coupled indirectly or directly to both spring bearings (74, 84.4) by means of an actuating unit (movable lever (61)), and in that the spring bearings (74, 84.4) are adjusted by means of the actuating unit.
6. Furniture hinge according to claim 4 or 5,
   characterized
   in that the adjusting unit acts on the connecting region of the two levers to which the spring bearings (74, 84.4) are coupled.
7. Furniture hinge according to claim 6,
   characterized
   in that the actuating unit is designed as a movable lever (61) which is coupled directly or indirectly to the articulated connection (40) via a joint which forms a first axis of rotation (44).
8. Furniture hinge according to any one of claims 1 to 7,
   characterized
   in that a spring bearing (84.4) is connected to a spring tensioner (80), by means of which the distance between the spring bearings (74, 84.4) can be adjusted and/or by means of which the torque introduced into the articulated joint (40) by the spring (76) can be varied.
9. Furniture hinge according to one of claims 1 to 8,
   characterized
   in that the opening movement of the hinge part (20) and/or the closing movement of the hinge part (20) can be damped at least in regions by means of a damping element (60).
10. Furniture hinge according to claim 9,
    characterized
    in that the damping element (60) is designed as a linear damper, preferably as a fluid linear damper.
11. Furniture hinge according to claim 9 or 10,
    characterized
    in that the damping element (60) is effective in the functional region between the hinge connection (40) and the spring (76).
12. Furniture with a furniture carcass and a flap or door hinged thereto by means of a furniture hinge (10) according to one of claims 1 to 11,
    wherein the manual force required during the opening and closing movement remains approximately constant, preferably remains constant with a deviation of +/-30%.

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