EP2248974B1 - Multiple fulcrum hinge - Google Patents

Description

The present invention relates to a hinge for pivotally attaching a flap to a body of a piece of furniture or other body for closing and opening an opening of the body. The invention further relates to a piece of furniture equipped with a multi-joint hinge.

Multi-hinge jingles are well known. They are used in particular for doors or flaps of a piece of furniture in order to pivotably guide this door or flap so that a user can move the door or flap from an open to a closed position or vice versa. Compared with a simple hinge, which is commonly used in room or front doors, for example, a multi-link hinge can create a more complex movement. The door or flap is thus not only hinged to a pivoting edge on the piece of furniture, but rather can move freely in all edges of the opening. In addition, the Mehrgefenksscharnier can optionally with the help of a corresponding Additional mechanics have the task to close the relevant flap and / or door in a closed state and in an open state - taking into account the gravity - keep open. Multi-joint hinges are thus often used for flaps that open and / or close at the top and / or at the top, that is to say essentially have a horizontal pivot axis. In the following, the term "flap" also includes elements such as doors.

A disadvantage of known Mehrgelenksscharnieren is basically their complex structure. In addition to the need to provide a plurality of pivot points, which are intended to provide a trajectory for the flap to be fastened, attaching a mechanism to open and / or close the respective flap is complicated and often depends on the very specific conditions of the flap, in particular Size and weight of the same. In addition, both when closing and holding a flap closed, the hinge must be selected depending on whether a flap opens downwards or upwards. In a downwardly opening flap, gravity aids in stopping, whereas gravity on an upwardly opening flap counteracts stopping.

It was therefore an object of the present invention to eliminate or alleviate one or more of the abovementioned disadvantages, in particular, it was an object to provide a hinge which is cost-effective in terms of type and / or construction and which should be usable as universally as possible. At least the object of the present invention was to provide an alternative hinge.

According to the invention, a hinge according to claim 1 is proposed. Such has a base member for fixing to the furniture or the like, and a fixing member for fixing to the flap or the like.

Welterhin, the hinge has a movement mechanism for guiding the fastener and thus when used properly for guiding the flap on a movement path. The trajectory is fixed with respect to the base element and thus when installed as intended with respect to the piece of furniture. The movement mechanism can basically be designed in different ways, but at least one holding arm is provided. This support arm is thus part of the movement mechanism and rotatably connected to the fastener and thus intended with the flap at a flap pivot. The first support arm is connected to the fastening element and as part of the movement mechanism with the base element, that this first support arm relative to the base member only on a fixed predetermined Bewebungsbahn can move. Preferably, the first support arm is guided so that it maintains its orientation when moving on its predetermined path of movement. In its movement, it is thus basically only moved in parallel with respect to its previous position. So he takes in the installed state a horizontal position z. B. relative to an upper edge, so this horizontal alignment is maintained during the movement. The first support arm thus has only one degree of freedom and the only possibility of movement of this support arm depends on the movement of the fastener and thus intended from the movement of the flap.

Furthermore, a spring element for providing a bias for holding the flap in a closed and / or open state is provided. The spring element, in particular a spring, can thus draw in particular with respect to a piece of furniture a flap inside and hold when it is in the closed state or close to the closed state, In addition, the spring should be arranged on the hinge so that when used as intended a flap can be kept in an open state, in particular in a horizontal position, when the closed position is a vertical position. This can also mean, in the case of downwardly opening flaps, that the spring can not close a flap open against the force of gravity due to its force and arrangement. In this case, the weight retained the flap without the spring prevents this. Of course, when dimensioning, it should also be taken into account in general how many hinges are used per flap. In many cases, two hinges are likely.

Furthermore, an auxiliary guide arm rotatably mounted on the base member is provided, which is rotatably mounted about an auxiliary pivot point. Furthermore, a connecting arm is provided, which connects the auxiliary guide arm with the first support arm. For this purpose, the connecting arm is rotatably mounted both on an auxiliary guide arm, namely in the region of a first connecting pivot point, and on the first holding arm, there at a second connecting pivot point. The auxiliary guide arm can thus exert a force on the first holding arm by means of the connecting arm, if a force is introduced into the auxiliary guide arm. Thus, a movement of the first holding arm on a predetermined path of movement via the connecting arm also leads to a substantially predetermined movement of the auxiliary guide arm and also of the connecting arm.

It should be noted that the described rotational movements or rotatable attachments are related to a rotation axis. Ball joints that allow greater freedom of movement than one Allow rotation axis are not provided in principle. In addition, according to the invention described arms, such as the support arm or the connecting arm, in principle also assume a physical configuration that differs from that of an arm. Thus, for example, the connecting arm could be designed as a straight strut or as a surface element, angle or even voluminous body for connecting the first and second connection pivot, if this is reasonable and feasible due to the given space.

The spring element exerts its power - directly or indirectly - on the auxiliary arm. This can be achieved according to the invention that the force acting ultimately on the fastener and intended on the flap, exerting its force depending on the position of the connecting arm and / or the position of the auxiliary guide arm. According to the invention, the spring element is fastened with a first side to the base element and with its second side either on the auxiliary guide arm or on the connecting arm. Thus, depending on the arrangement of the spring element, which can also be referred to simply as a spring below, a certain, dependent on the position of the guide auxiliary arm and / or the connecting arm force can be exercised.

Preferably, the spring element, in particular the spring is designed as a tension spring. According to the said embodiment, the spring element thus produces a tensile stress between the base element and the auxiliary guide arm or the base element and the connecting arm.

More preferably, the auxiliary guide arm extends from the auxiliary fulcrum in two substantially opposite directions, namely, to a first side, wherein the auxiliary guide arm is rotatably connected to the connecting arm in the region of this first side at the connecting pivot point, and to a second side, wherein the auxiliary guide arm in FIG Area of the second side, which is the first side substantially facing away, is prepared to be connected to the second side of the spring element. It may be advantageous to provide such a second side of the auxiliary guide arm without this side actually being connected to the second side of the spring element. Preferably, however, the spring element is connected to this second side of the auxiliary guide arm and applies a force between the base element and this second side of the auxiliary guide arm. The invention proposes that the hinge be prepared to be used, depending on the position of the spring element, for use with an intended upwardly or downwardly opening flap. It is advantageous if the hinge is prepared to keep the flap in an open, in particular horizontal, and in a closed, in particular vertical position when used as intended. Due to the weight force acting strongly on the flap, especially in the open, horizontal state, the requirements for the hinge for holding the flap are very different, depending on whether the flap opens upwards or downwards. However, in order to provide an almost same hinge for both types of flaps, a hinge of one embodiment is characterized in that its use as a hinge for an upwardly or downwardly opening flap is determined by the position of the spring element. One and the same hinge can thus be changed by converting the spring element from a hinge for a downwardly opening flap to a hinge for an upwardly opening flap. Preferably, the hinge is dimensioned so that in both cases the same spring element can be used.

According to a further embodiment, which is provided in particular for an upwardly opening flap, the hinge is characterized in that the spring element is attached to the auxiliary guide arm and exerts a force on the first holding arm via the auxiliary guide arm and the connecting arm, wherein the force in the open Condition of the flap is directed in a direction to keep open the flap and is directed in the closed state in a direction to keep the flap closed, wherein the direction of force preferably depends on the position of the connecting arm.

Thus, the spring member is attached to the auxiliary guide arm so as to exert a force thereon. This force is further transmitted via the connecting arm on the first arm. Depending on the position of the flap attached as intended, the said force thus either supports the opening or the closing of the flap or the holding open or keeping closed the flap. This can be achieved in particular by the position of the connecting arm relative to the holding arm. By the movement of the flap and thus the movement mechanism including the first support arm, the position of the connecting arm relative to the support arm and thus the direction of force exerted by the auxiliary guide arm on the connecting arm on the support arm. At the moment when the connecting arm or its direction of force is perpendicular to the predetermined direction of movement, in the said direction of movement, a force is possibly transmitted indirectly. This can also be done by the type of movement mechanics, in particular depend on how the first arm is guided.

The hinge is thus adapted to assume a state of reversal of the force acting on the fastener and thus the flap between fully open position and fully closed position.

A hinge of another embodiment is characterized in that the movement mechanism comprises: the first support arm, a second pivotally connected to a second flap pivot pivotally connected to the mounting arm support arm, a first guide arm which is rotatably connected to the base member at a first base pivot point with the first support arm at a first support pivot and the second support arm at a second support pivot, a second guide arm rotatably connected to the base member at a second base pivot and the first support arm at a third support pivot.

The movement mechanism thus essentially has a first and a second retaining arm and a first and a second guide arm. Preferably, both retaining arms are arranged parallel to one another, at least in the region from the first guide arm to the fastening element. The two guide arms are also preferably formed parallel to each other. This ensures that the two retaining arms remain partially formed while moving parallel to each other. This is achieved in particular by the fact that the distance between the two flap pivot points and the two holding fulcrums is the same. In particular, the first and second holding fulcrum and the first and second flap fulcrum mark a parallelogram. Likewise, preferably, the first and second base fulcrum and the first and third fulcrums also signify a parallelogram. When this parallelogram attached to the base member assumes the shape of a rectangle due to its movement, it is at a turning point.

Preferably, the hinge is formed so that the described parallelogram of the first and second base fulcrum and the first and third holding fulcrum assumes the special shape of a rectangle in a position of the hinge between its intended fully opened and fully closed condition. It is favorable when the connecting arm engages between - in particular centrally between - the first and third holding fulcrum.

According to yet another embodiment, a hinge is proposed, characterized in that the first and second connection fulcrum define a connection path, the first connection fulcrum and the auxiliary fulcrum define an auxiliary path and, when used as intended, the connection path with the auxiliary section in the closed state of the flap an acute Form angles, preferably in the range of 30 ° to 85 °, in particular in the range of 45 ° to 80 ° and in the open state of the flap form an obtuse angle, preferably in the range of 120 ° to 175 °, in particular in the range of 135 ° 170 °.

Thus, an acute angle is proposed as an angle <90 ° in the intended closed state of the door, whereby a force effect of the connecting arm on the first holding arm is achieved in a closing direction of the flap or favors, thereby holding the flap in a closed state. In the open state, an obtuse angle, ie an angle> 90 ° and <180 ° is proposed. Especially at angles close to 180 °, a so-called toggle effect occurs, according to which the first connection pivot point is for the knee joint and an angle of 180 ° would correspond to a complete extension. Such a full extension can thus hold the flap without significant force by the spring, if the direction of force of the connector points in the opening direction. Since in the case of a 180 ° angle, the flap would not be closed by a user, a slightly smaller angle than 180 ° is proposed.

In general, it should be noted that the movements referred to in this application basically refer to movement in a plane. Usually, a Mehrgelenksscharnier z. B. be arranged on the edge of a cabinet wall or cabinet partition wall - with or without fairing - and the movements, in particular the movements of the movement mechanism in this case extend in said wall or partition or in a plane parallel thereto. In other words, most or all pivot axes of the hinge, which are each provided at a pivot point, are formed parallel to each other.

According to the invention a piece of furniture is also proposed, which has a body with at least one flap. The flap is movably attached to the body with at least one, preferably two hinges according to the invention. Preferably, such a flap has a movement path of about 90 °, namely from a normal vertical closed position to a normal horizontal opening position.

Figur 1

zeigt ein Scharnier gemäß dem Stande der Technik für eine nach unten öffnenden Klappe in einem bestimmungsgemäß geschlossenen Zustand.

Figur 2

zeigt ein Scharnier gemäß einer ersten Ausführungsform der Erfindung schematisch in einer bestimmungsgemäß geschlossenen Stellung.

Figur 3

zeigt ein Scharnier gemäß Figur 2 schematisch in einer bestimmungsgemäß geöffneten Stellung.

Figur 4

zeigt ein Scharnier einer weiteren Ausführungsform zur Verwendung mit einer nach oben öffnenden Klappe schematisch in einer bestimmungsgemäß geschlossenen Position.

Figur 5

zeigt das Scharnier gemäß Figur 4 schematisch in einer bestimmungsgemäß geöffneten Stellung.

The invention will now be described by way of example with reference to embodiments with reference to the accompanying drawings.

FIG. 1

shows a hinge according to the prior art for a downwardly opening flap in a properly closed state.

FIG. 2

shows a hinge according to a first embodiment of the invention schematically in an intended closed position.

FIG. 3

shows a hinge according to FIG. 2 schematically in an intended open position.

FIG. 4

shows a hinge of another embodiment for use with an upwardly opening flap schematically in a designated closed position.

FIG. 5

shows the hinge according to FIG. 4 schematically in an intended open position.

FIG. 1 shows a hinge 101 according to the prior art. The hinge 101 has a base member 102 for attachment to the body of a cabinet, and a fastener 104 for securing a flap to move relative to the body. The illustrated hinge 101 is for a downwardly opening flap and the fastener 104 is to be secured in a lower portion of the flap.

The hinge 101 has first and second support arms 106 and 108 which are rotatably mounted to the fastener 104 in first and second flap pivots 110 and 112 so as to maintain the flap on a predetermined path of travel via the fastener 104.

The support arms 106 and 108 are in turn rotatably mounted to the base member 102 by means of first and second guide arms.

To open would have to a corresponding fastened to the fastener 104 flap according to FIG. 1 are pulled to the left, whereby the movement mechanism consisting of the fastener 104, the first and second support arms 106 and 108 and the first and second guide arm 114 and 116 would also move to the left, wherein also the fastener 104 together with the attached flap tilts to the left. This corresponds to the opening movement of the flap down.

In this opening movement, the spring 118, which is secured between the first support arm 106 and the base member 102 with a bias, stretched and counteracted said opening movement.

Thus, a flap can be held in a closed position by the spring 118 and the spring 118 also facilitates the closing movement. When dimensioning the spring 118, make sure that it is not too strong to prevent unwanted closing of the flap from the open state. This hinge 101 is unsuitable for use with an upwardly opening flap which is to be stopped by the hinge in the opened state. It would either have to choose a different hinge, or an additional mechanism to achieve the retention of an upwardly opening flap.

The FIGS. 2 to 5 basically show schematically a hinge that is closed between the representations of these four figures basically only by the respective position according to Figures 2 and 4 and opened according to Figures 3 and 5 on the one hand and the position of a spring 18 for use with a downwardly opening flap according to Figures 2 and 3 and for use with an upwardly opening flap in accordance with FIGS. 4 and 5 different. For this reason, to explain the FIGS. 2 to 5 essentially the same reference numerals are used. In particular, the hinge of all FIGS. 2 to 5 referred to as hinge 1.

First, the hinge 1 with reference to the FIG. 2 explained in more detail. The hinge 1 has, as a base element, a base plate 20 and a base strut 22 attached thereto. The base plate 20 is fixed to the body of a piece of furniture, which is in the FIG. 2 - and also the
FIGS. 3 to 5 - but not detailed. Furthermore, the hinge 1, a fastening element 4 which is fixed to a flap 24 which in the FIGS. 2 to 5 only hinted at.

The flap 24 is connected via the fastening element 4 with the first and second support arm, 6, 8. The connection is in each case made rotatably on the first and second flap pivot 10, 12. The first and second support arms 6, 8 are movably mounted on the base plate 20 via the first guide arm 14. The rotationally movable fastening takes place via a first holding pivot point 26 between the first holding arm 6 and the first guide arm 14, via a second holding pivot 28 between the second holding arm 28 and the first guiding arm 14 and via a first base pivot point 32 between the first guiding arm 14 and the base plate 20.

In order to describe a fixed predetermined trajectory, the first support arm 6 is still rotatably connected via a second guide arm 16 with the base plate 20. The connection via a third holding pivot 30 between the first arm 6 and the second guide arm 16 and a second base pivot 34 between the second guide arm 16 and base plate 20. These described as interconnected elements comprising the first and second arm 6, 8, the first and second guide arm fourteenth , 16 and the fastener 4 can be considered as a movement mechanism 36, as far as a firm attachment to the first and second base point 32, 34 takes place. Through this movement mechanism 36, a fixed path of movement during opening and closing of the flap 24 and the fastener 4 is achieved.

For keeping closed and keeping open, an auxiliary guide arm 38 with a connecting arm 40 is now provided in addition to said movement mechanism 36. The auxiliary guide arm 38 is rotatably attached to the base brace 22 and thus to the base plate 20 at an auxiliary pivot 42.

The connecting arm 40 connects the auxiliary guide arm 38 with the first support arm 6. The connections are made rotatable via a first connection pivot point 44 between the auxiliary guide arm 38 and connecting arm 40 and the second connection pivot point 46 between connecting arm 40 and first support arm.

To keep the flap closed, a spring 18 is secured to the base strut 22 and the connecting arm 40. The spring 18 in this case is under tension and pulls the connecting arm 40 in the direction of the spring force 48 to the base strut 22. The connecting arm, which is basically supported on the auxiliary guide arm 38 at the first connection pivot 44, thus leading to a force 50 in the region of second connection pivot 46 basically acts in the closing direction on the first arm 6. The flap 24 is thereby held in the closed state.

FIG. 3 illustrated as opposed to FIG. 2 the hinge 1 in an open position. The flap 24 is in this case in a substantially horizontal position. The spring 18 is compared to the closed position according to FIG. 2 stretched something. Between the connecting arm 40 and the auxiliary guide arm 38 is an angle 52, which is significantly greater than 90 °, is about 140 °. The spring force 48 'is compared to FIG. 2 Although increased due to the extension of the spring 18, due to the large angle 52 but only worse the force on the second connecting pivot 46 on the first arm 6 exercise and also the very bottle position of the first and second guide arm 14, 16 causes the spring force 48 'is unable to close the flap 24 against the force of gravity.

It should be noted that according to FIG. 3 and basically according to FIG. 2 the spring force 48 'or 48 also exerts a force on the auxiliary guide arm 38, namely, by the force acting on the connecting arm 40, which is supported on the auxiliary guide arm 38 in the region of the first connection pivot point 44 basically.

FIG. 4 relates to a hinge for an upwardly opening flap 24. Basically, the hinge 1 is according to FIG. 4 according to the representation of FIG. 2 rotated by 180 °. Only the spring 18 is attached to a different position, namely on the base strut 22 and the auxiliary guide arm 38. The spring 18 in this case exerts a spring force 54 on the auxiliary guide arm 38. This tensile force 54 is basically converted via the auxiliary pivot point 42 to a thrust force 56 which acts on the connecting arm 40 at the first connection pivot point 44. This thrust force 56 is passed through the second connection pivot point 46 on the first arm 6 and leads to a force 58 in the closing direction of the support arm 6. The direction of this force 58 in the closing direction is both by the An-griffswinkel 62 of the connecting arm 40 on the first arm 6 and determined by the position of the two guide arms 14 and 16.

Illustratively, a parallelogram 60 is indicated by dashed lines in FIG FIG. 4 located. This parallelogram 60 is defined by the first and second base fulcrums 32, 34 and the first and third support fulcrums 26, 30. The parallelogram 60, in the illustrated closed position of the flap 24, is slightly above a state of the motion mechanism 36 in which this parallelogram is taken 60 takes the special form of a rectangle. The invention makes use of this position of the parallelogram 60, so that the thrust force 56 leads to the force 58 in the closing direction. This is facilitated by the fact that an angle drawn between the connecting arm 40 and the first holding arm 6 as an attack angle 62 is greater than 90 °. Thus, the spring force 54 can ultimately be converted into a closing force. The hinges are in accordance with FIG. 2 and 4 In their construction agree or are identical, except for the arrangement of the spring 18th

It should be noted that the flap 24, according to FIG. 4 opens up, basically alone by the weight in the closed position would remain. However, the illustrated mechanism leads to a state in which the flap 24 is tightened more firmly than by the weight alone in its closed position. As a result, for example, a Klappem can be prevented.

In FIG. 5 the flap 24 is now shown in its upwardly open position. The flap 24 is approximately horizontal and the weight force acting on it urges the flap 24 to close.

The spring 18 now exerts a spring force 54 'on the auxiliary guide arm 38, which is redirected via the first connection pivot 44 in a thrust force 56', which leads at the second connection pivot point 46 to a force 64 on the first support arm 6 in the opening direction. The direction of the force depends both on the angle of attack 62 'between the connecting arm 40 and the first holding arm 6 and the position of the parallelogram 60'. The parallelogram 60 'is like the parallelogram 60 according to FIG FIG. 4 defined and shown in dashed lines. The parallelogram 60 'is designed comparatively flat, compare to the configuration of the parallelogram 60 according to FIG. 4 , For the weight force that acts on the flap 24 to Schlleβen, the position of the hinge is unfavorable. The flap 24 can thus ultimately be kept open by the spring force 54 'open. In particular, the position of the movement mechanism 36 and the wide open angle 52 'are important for this purpose. Due to the wide open angle 52 'adjusts itself for the auxiliary guide arm 38 with the connecting arm 40 a toggle effect. If the angle 52 'at 180 °, the weight acting on the flap 24, the flap 24 could not close even at a spring force 54' of practically 0 Newton. The angle 52 'according to FIG. 5 has a value less than 180 °, so that closing is possible. However, the angle 52 'is so large that the spring 18 still leads to a fairly large force, in particular to such a large force 56', which counteracts the closing of the flap 24.

Claims (7)

1. Hinge (1) for pivotably fastening a flap (24) to a carcass of a piece of furniture or to another body for closing and opening an opening of the carcass or body, comprising

   - a base element (20) for fastening the hinge (1) to the carcass or the body,

   - a fastening element (4) for fastening the hinge (1) to the flap (24),

   - a movement mechanism for guiding the fastening element on a movement path, wherein

   - the movement path is fixedly predetermined in relation to the base element (20) by the configuration of the movement mechanism (36) and

   - the movement mechanism (36) has a multiple-joint hinge and a first holding arm (6) connected rotationally movably to the fastening element (4) at a first flap pivot point (10),

   - an auxiliary guide arm (38) fastened rotationally movably to the base element (20) at an auxiliary pivot point (42),

   - a connecting arm (40) for connecting the auxiliary guide arm (38) to the first holding arm (6), wherein the connecting arm (40) is connected

   - rotatably to the auxiliary guide arm (38) at a first connecting pivot point (44) and

   - rotatably to the first holding arm (6) at a second connecting pivot point (46), and

   - a spring element (18) for providing a prestress for keeping the flap (24) in a closed and/or open state, wherein the spring element (18) exerts a force on the auxiliary guide arm (38),

   characterised in that the same hinge (1) is prepared for use with a prescribed upwardly or downwardly opening flap (24), depending on the position of the spring element (18), wherein the spring element (18)
   is fastened either with a first side to the base element (20) and with a second side for the downwardly opening flap (24) to the connecting arm (40) or
   is fastened with a first side to the base element (20) and with a second side for the upwardly opening flap (24) to the auxiliary guide arm (38).
2. Hinge (1) according to Claim 1, characterised in that the auxiliary guide arm (38) from the auxiliary pivot point (42)

   - extends to a first side, and in the region of the first side is rotatably connected to the connecting arm (40) at the first connecting pivot point (44), and

   - extends to a second side facing away from the first side, wherein this second side of the auxiliary guide arm (38) is prepared to be connected to the second side of the spring element (18) and/or wherein the second side of the auxiliary guide arm (38) is connected to the second side of the spring element (18).
3. Hinge (1) according to one of Claims 1 or 2, characterised in that the hinge (1) is prepared, on prescribed use, for keeping the flap (24) in an open and in a closed position.
4. Hinge (1) according to Claim 3, characterised in that the spring element (18) is fastened to the auxiliary guide arm (38) and exerts a force on the first holding arm (6) via the auxiliary guide arm (38) and the connecting arm (40), wherein the force in the open state of the flap (24) is directed in a direction for keeping the flap (24) open and in the closed state is directed in a direction for keeping the flap (24) closed, wherein the force direction preferably depends on the position of the connecting arm (40).
5. Hinge (1) according to one of the preceding claims, characterised in that the movement mechanism (36) comprises

   - the first holding arm (6),

   - a second holding arm connected rotationally movably to the fastening element (4) at a second flap pivot point (12),

   - a first guide arm (14) which is connected rotationally movably

   - to the base element (20) at a first base pivot point (32),

   - to the first holding arm (6) at a first holding pivot point (26) and

   - to the second holding arm (8) at a second holding pivot point (28),

   - a second guide arm (16) which is connected rotationally movably

   - to the base element (20) at a second base pivot point (34) and

   - to the first holding arm (8) at a third holding pivot point (34).
6. Hinge (1) according to one of the preceding claims, characterised in that

   - the first and second connecting pivot point (44, 46) define a connecting path,

   - the first connecting pivot point (44) and the auxiliary pivot point (42) define an auxiliary path and

   - on prescribed use the connecting path with the auxiliary path

   - in the closed state of the flap (24) form an acute angle, preferably in the range from 30° to 85°, in particular in the range from 45° to 80°, and

   - in the open state of the flap (24) form an obtuse angle, preferably in the range from 120° to 175°, in particular in the range from 135° to 170°.
7. Piece of furniture having a carcass with at least one flap (24), characterised in that the flap (24) is movably fastened to the carcass by means of at least one, preferably two, hinges (1) according to one of the preceding claims.

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