EP0601324B1 - Cabinet hinge - Google Patents

Abstract

A furniture hinge having a movable hinge part (40) adapted to be mounted on a door and is connected by at least one pivot pin in an articulating manner with a hinge arm (1), which is adapted to be mounted on the supporting wall (3) by means of an attachment plate (4 and 5). The hinge arm (1) is locked in relation to the attachment plate by means of a set screw (26) which is able to be screwed into the hinge arm and able to be turned with the attachment plate (4 and 5) but not be moved in an axial direction. In order to provide a furniture hinge which has a compact design and is able to be attached to narrow end frame of openings in furniture and which, furthermore, renders possible a pivotal movement of the hinge arm for the purpose of lateral adjustment of a door without altering the gap, in an arm (21) partly overlapping the end side (48) of the supporting wall or of the end frame (3) the attachment plate (4 and 5) is provided with a slot (22) running parallel to the end side (48), which slot (22) parallels the pivot axis of the hinge arm and is in alignment with a slot (47) in the end part, adjacent to the joint, of the hinge arm.

Description

The invention relates to a furniture hinge with a preferably pot-shaped, movable hinge part that can be fastened to a door or flap, according to the preamble of patent claim 1. Such a furniture hinge is known from DE-A-34 42 421.

If the hinge arm, which is articulated to the movable hinge part by two links, is pivoted away from the mounting plate for side adjustment of a door, the hinge arm assumes an obtuse-angled position relative to the door, which corresponds to a slight door opening, although the door is opened by supports Body parts or a door frame is in their closed position. If the handlebars are pivoted through this type of side adjustment in the sense of easy door opening, the joint increases, i.e. the distance between the end wall of the supporting wall and the door. In one from DE-A-34 42 421 known four-joint furniture hinge of the type specified is compensated for the change in joint caused by the pivoting of the hinge arm for side adjustment in that the hinge arm is guided in guides of the mounting plate such that it causes a pivoting by the amount caused by this pivoting Joint change in its longitudinal direction is moved on the intermediate plate. In this known furniture hinge, the hinge arm is guided in guides of the fastening plate in such a way that a pivoting movement between these two parts is superimposed on a translational movement which compensates for the change in joints by pivoting the handlebars. However, this known furniture hinge requires such a large length of the hinge arm and the fastening plate that the hinge arm can be mounted on the fastening plate in a longitudinally displaceable manner. There are now designs of furniture in which there is no space for arranging and fastening longer hinge arms and correspondingly long fastening plates, such as, for example, in American-style furniture in which doors have to be fastened to a circumferential end frame with a limited width.

The object of the invention is therefore to provide a furniture hinge of the type specified which, in a compact construction which allows the mounting plate carrying the hinge arm to be fastened, for example also to narrow end frames of furniture openings, without pivoting the hinge arm for the purpose of side adjustment of a door without Allows changes in the joint.

According to the invention, this object is achieved in a furniture hinge of the generic type by the characterizing features of patent claim 1. In the case of the furniture hinge according to the invention, the joint between the door or the flap and the body part of the furniture or the front frame is kept constant in that at least one of the hinge pins mounted on the hinge arm is guided in intersecting elongated holes in the hinge arm and the support plate in such a way that the pivot pin or pins forming the joint system are displaced approximately parallel to the end face of the furniture body when the hinge arm is pivoted.

If the hinge according to the invention has only a single hinge pin, it is guided in two elongated hole guides, of which the guide provided on the fastening plate runs parallel to the end wall of the furniture and the other guide provided on the hinge arm is inclined so that when the hinge arm is pivoted, the Hinge pin is moved parallel to the front of the furniture.

If the movable hinge part is connected to the hinge arm by two links with rectangular or trapezoidal hinge pins, the hinge arm-side hinge pins can be guided in elongated holes of the mounting plate parallel to the end face and in elongated holes of the hinge arm crossing them.

According to a preferred embodiment it is provided that with a four-joint hinge, only one hinge arm-side hinge pin is guided. In this embodiment, the inner hinge pin is fastened in bores of the hinge arm, and only the outer hinge pin is held in the intersecting guides of the hinge arm and the fastening plate, the inner hinge pin being arranged in relation to the pivot axis of the hinge arm in such a way that it pivots when pivoted performs substantially parallel movement to the slot in the arm of the mounting plate. The inner hinge pin does not require any guidance, since the pivot axis in the rear area of the hinge arm is selected such that the inner hinge pin is moved on an arc when the hinge arm is pivoted, but this arc is approximately the guide on the parallel to the front of the furniture body Tendon corresponds.

The elongated holes are expediently arranged in forked legs of the fastening plate and of the hinge arm. These legs are usually present because the hinge arm and also the fastening plate have a U-shaped profile.

The fastening plate expediently consists of a base plate and an intermediate plate. In such an embodiment, the hinge arm is expediently pivotably mounted on the intermediate plate and fixable in different angular positions.

In a further embodiment of the invention, the intermediate plate can be mounted on the base plate so as to be longitudinally displaceable and lockable for setting the joint. A self-locking eccentric drive can be provided for longitudinal displacement of the intermediate plate on the base plate.

An essential feature of the present invention is that when the hinge arm is pivoted, the same but opposite pivoting takes place, at least of the outer hinge pin mounted on the hinge arm, the handlebars supported by the hinge pin being displaced approximately parallel to the furniture end wall without pivoting, so that the Kinematic arrangement of the joint system is not changed and the door can be adjusted laterally on the furniture body without changing the joint once set. This type of parallel movement of the joint system without pivoting means that there is no longer any easy door opening with a side adjustment, which could cause a change in the joint.

If necessary, both hinge pins can also be guided, for example, on the hinge arm and the mounting plate in elongated hole guides if the pivot axis of the hinge arm should be in a particularly unfavorable position, so that when the hinge arm is pivoted, the two pivot pins lying at an angle to the end wall of the furniture are pivoted To run.

According to the invention, the hinge pins mounted on the hinge arm are guided in guides of the hinge arm and the mounting plate such that the hinge pins mounted on the pivotable hinge part are displaced approximately parallel to the end face of the furniture body when the hinge part is pivoted, additional guides being provided in the hinge arm which ensure a parallel displacement of the joints without substantial rotation. If the pivot axis of the hinge arm is substantially perpendicular to the chord of the circular arc described by the inner hinge pin, its guidance in intersecting elongated hole guides can be dispensed with.

The hinge pins held in intersecting elongated hole guides are held in the common free space of the overlapping parts of the elongated holes essentially without play.

Fig. 1

einen Längsschnitt durch ein an einem Stirnrahmen eines Schrankes o. dgl. befestigten Scharniers der erfindungsgemäßen Art mit vier Gelenken,

Fig. 2

einen der Fig. 1 entsprechenden Längsschnitt durch ein erfindungsgemäßes Scharnier mit nur einem das bewegliche Scharnierteil mit dem Scharnierarm verbindenden Gelenkbolzen,

Fig. 3

eine der Fig. 1 entsprechende Darstellung des Scharniers, bei dem jedoch die aus Grund- und Zwischenplatte bestehende Befestigungsplatte nicht geschnitten ist,

Fig. 4

eine der Fig. 3 entsprechende Darstellung des Scharniers, bei der der Scharnierarm zur Seiteneinstellung der Tür relativ zur Befestigungsplatte verschwenkt ist,

Fig. 5

einen Längsschnitt durch die Grundplatte,

Fig. 6

eine Draufsicht auf die Grundplatte,

Fig. 7

einen Längsschnitt durch die Zwischenplatte,

Fig. 8

eine Draufsicht auf die Zwischenplatte,

Fig. 9

einen Längsschnitt durch den Scharnierarm und

Fig. 10

eine Draufsicht auf den Scharnierarm.

An embodiment of the invention is described below with reference to the drawing. In this shows

Fig. 1

3 shows a longitudinal section through a hinge of the type according to the invention fastened to an end frame of a cabinet or the like with four joints,

Fig. 2

1 shows a longitudinal section corresponding to FIG. 1 through a hinge according to the invention with only one hinge pin connecting the movable hinge part to the hinge arm,

Fig. 3

1 corresponding representation of the hinge, but in which the mounting plate consisting of the base and intermediate plate is not cut,

Fig. 4

3 shows a representation of the hinge in which the hinge arm is pivoted relative to the fastening plate for lateral adjustment of the door,

Fig. 5

a longitudinal section through the base plate,

Fig. 6

a top view of the base plate,

Fig. 7

a longitudinal section through the intermediate plate,

Fig. 8

a plan view of the intermediate plate,

Fig. 9

a longitudinal section through the hinge arm and

Fig. 10

a top view of the hinge arm.

The hinge arm 1 of the hinge according to the invention is mounted on the end frame 3 of a piece of furniture via a fastening plate 2. The mounting plate 2 consists of the base plate 4 and the intermediate plate 5 which is guided in a longitudinally displaceable manner thereon.

The base plate has, as can best be seen from FIG. 5, a U-shaped profile. The legs 6 of the base plate 4 are extended in the direction of the movable hinge part beyond the web part 7 connecting the legs. The legs are connected to lateral extensions 8, which are provided with oblong holes 10 extending transversely to the center line 9, which are used for fastening to a piece of furniture by means of fastening screws, not shown. The web part 7 is provided with a front recess and a flanged bore 11, in which the shaft 12 of an eccentric can be rotated by riveting its lower end, but is held immovably in the axial direction.

In the front area, the legs are provided with a bore 14 in which a bolt 15 is held, the ends of which protrude laterally from the legs 6.

The intermediate plate 5 consists, as can best be seen from FIG. 7, of a central web part 16, from which U-shaped lateral legs 17 are bent at right angles. The web part 16 has in its rear region a transverse elongated hole 18, in which the eccentric, circular cam part of the eccentric 13 is arranged in the assembled state. The eccentric 13 additionally has a screwdriver slot Head 19, which covers the slot 18, so that the intermediate plate 5 is held in contact with the base plate 4. In its front area, the legs 17 of the intermediate plate 5 are provided with elongated holes 20 into which the protruding pins of the pin 15 engage. The legs 17 of the intermediate plate 5 overlap the legs 6 of the base plate 4, so that the intermediate plate 5 is guided on the base plate 4 in a longitudinally displaceable manner. The eccentric 13 can be turned with a screwdriver for longitudinal adjustment and fixing in the desired positions. The legs 17 have at their front ends angled extensions 21 which are provided with elongated holes 22, the center lines of which are perpendicular to the web part 16.

The hinge arm 1 also has a U-shaped profile, the front region of the hinge arm being slightly bent relative to the rear region thereof, as can best be seen from FIG. 9. The web part 23 of the hinge arm is provided with an opening 24 for a screwdriver and a flanged threaded bore 25, into which an adjusting screw 26 is screwed. The set screw 26 has a lower, tapered shaft part 27 which passes through a spring plate 28 which is held by a rivet head 29 in such a way that the set screw 26 with the slot 30 in the web part 16 of the intermediate plate 5 is displaceable, rotatable and easily pivotable , but is otherwise immovably connected in the axial direction.

The legs 32 of the hinge arm have aligned bores 33 in their rear region. The legs 32 overlap the intermediate plate 5, a pivot pin 35 being passed through the aligned bores 33 and 34 in the legs of the intermediate plate for the articulated connection of the hinge arm to the intermediate plate. By connecting the hinge arm About the hinge pin 35 and the adjusting screw 26 with the intermediate plate 5, the hinge arm can be pivoted relative to the intermediate plate 5 by turning the adjusting screw, the hinge arm being fixed in the set pivot positions by the self-locking adjusting screw 26.

With the hinge arm 1 via the link 38, 39, the movable hinge part 40 is articulated, which consists of a pot-shaped hinge part, which is inserted and fixed in a conventional manner in a bore 41 of a door or flap 42. The link 38 has a U-shaped profile, the legs being provided with bores at the inner ends of the link 38, and through which bores 44 in the legs 32 of the hinge arm 1 lead to a hinge pin 45 which connects both joints. The other handlebar carries in its inner end a hinge pin 46 which is held in the intersecting elongated holes 22 of the intermediate plate 5 and 47 in the legs 32 of the hinge arm 1. In the mounting position shown in Figures 1, 3 and 4, the center lines of the elongated holes 22 in the legs 17 of the intermediate plate 5 and the elongated holes 47 in the legs 32 of the hinge arm 1 assume an acute-angled position, so that the hinge pin 46 in the respective overlapping Free space of the two elongated holes is maintained.

If the hinge arm 1 is now pivoted relative to the intermediate plate 5 by actuating the adjusting screw 26 for the side adjustment of the door 42, the hinge pin 46 is displaced in the elongated hole 22 parallel to the end face 48 of the frame 3. The displacement distance can be seen from FIGS. 3 and 4, the hinge arm 1 in FIG. 3 being in its position parallel to the intermediate plate 5 and in FIG. 4 in its pivoted-out position.

In the illustrated embodiment, when the hinge arm 1 is pivoted about the pivot pin 35, the pivot pin 45 describes an arc around the pivot pin 35. However, since the pivoting of the pivot pin 35 is relatively small, the arc of the pivot line can be equated with the chord. Since, furthermore, the swivel radius running through the swivel pin 35 is perpendicular to the chord and the chord runs approximately parallel to the end face 48 of the end frame due to the structural arrangement of the hinge pin 45, the entire hinge system only experiences a parallel displacement by pivoting the hinge arm 1. This parallel shift can be seen from FIGS. 3 and 4. 3, in which the hinge arm 1 runs parallel to the intermediate plate 5, as well as in the largest pivoting position of the hinge arm 1, the line 50 drawn by the hinge pin 45, 46 closes the same angle alpha with the plane of the end face 48 one without the joint system having undergone a rotation despite the pivoting of the hinge arm.

The outer ends of the links 38, 39 are mounted in the hinge cup 40 in a conventional manner. In order to keep the gap between the door 42 and the end face of the frame 3 as small as possible, both the front end of the hinge arm and the front end of the intermediate plate 5 with the angled legs 21 are partially immersed in the hinge cup.

As can be seen from the drawing, the gap between the door 42 and the end face 48 of the frame 3 remains constant because of the parallel guidance even when the hinge arm 1 is pivoted.

As can best be seen from FIG. 1, the handlebar 39 is attached at its inner end a cam-like curve segment 60, which has a curve section concentric with the hinge pin 46, on which in the region of the open position a leg of the double-layered and hairpin-shaped curved leaf spring 61 is supported, which is held in the manner shown on the hinge pin 45. In the closed position, the leaf spring 61 is supported on the transition area of the concentric cam part to an approximately radial cam part of the sector-like cam 60, so that the door is pressed into its closed position in its closed area. Since the kinematics of the steering system do not change in the hinge according to the invention even when the hinge arm 1 is pivoted, the closing characteristic is not changed because the steering system does not undergo any rotation.

The parallel displacement of the joint system with a side adjustment also has the consequence that the largest opening angle that can be achieved is not impaired by a side adjustment.

A hinge according to the invention, in which the hinge cup 40 'is articulated to the hinge arm 1' only by a hinge pin 46 ', can be seen in FIG. 2. In this embodiment, the only hinge pin 46 held in the hinge cup 40 ′ is held both in the elongated hole 22 ′ in the legs of the intermediate plate and in the elongated holes 47 ′ in the legs of the hinge arm 1.

The parallel displacement of the hinge system is achieved in that the hinge pin 45 is displaced due to its arrangement to the pivot axis 35 of the hinge arm 1 substantially parallel to the end face 48 of the frame 3, while the hinge pin 46 when the hinge arm 1 is pivoted by displacement in the transverse elongated hole 47 executes a pivoting, opposite to the hinge arm 1, by the angle beta (see FIG. 9), which is the same but opposite to the pivoting of the hinge arm 1.

Claims (8)

1. Cabinet hinge with a preferably cup-like moving hinge part (40), which may be fixed to a door or flap and is connected by at least one link pin (46, 46') to form an articulated joint with a hinge arm (1) which can be connected by a fixing plate (4, 5) featuring a web portion (7, 16) to a supporting wall (3), said hinge arm (1) being lockable by a set screw (26) which is screwed into said hinge arm (1) and is also connected to the fixing plate (4, 5) to facilitate rotation while axially fixed for lateral adjustment of the door (42), or vertical adjustment of the flap, around a pivot (35) located transverse to the fixing plate (4, 5) so as to enable rotation and fixing at various angular positions relative to said fixing plate (4, 5),
   characterised in that

   the fixing plate (4, 5) features perpendicular to the web portion (7, 16) an angled arm (21), said arm (21) being provided with an oblong hole (22), the centreline of which is perpendicular to said web portion and intersects with the centreline of an oblong hole (47) in the joint-side end section of the hinge arm (1), with the planes of the two oblong holes (22, 47) running parallel to each other and perpendicular to the pivot (35),

   in the installed condition of the cabinet hinge, the angled arm (21) partially protrudes beyond the end face (48) of the supporting wall (3) or of an end frame, and the oblong hole (22) of the angled arm (21) runs parallel to the end face (48),

   the link pin (46, 46') is retained in the oblong holes (22, 47), and

   the oblong hole (47) in the joint-side end section of the hinge arm (1) runs transverse or diagonal to oblong hole (22) of arm (21) of the fixing plate (45) such that the link pin (46) is shifted in the oblong hole (22) of said arm (21) when the hinge arm (1) is rotated.
2. Cabinet hinge according to Claim 1, characterised in that the moving hinge part is connected by two linkages, with link pins arranged at rectangles or in a trapezoidal pattern, to the hinge arm, and that the hinge arm-side link pins are guided in the oblong holes of the fixing plate which are parallel to the end face, and in the oblong holes of the hinge arm which intersects these.
3. Cabinet hinge according to Claim 1 or 2, characterised in that the inner link pin (45) is secured in holes of the hinge arm (44), and only the outer hinge arm-side link pin (46) is retained at the intersecting guides (22, 47) of the hinge arm (1) and of the fixing plate (4, 5), and that the inner link pin (45) is arranged in relation to the pivot (35) of the hinge arm (1) such that, on rotation of said hinge arm (1), it executes a motion which is essentially parallel to the centreline of oblong hole (22) in arm (21) of the fixing plate.
4. Cabinet hinge according to one of Claims 1 to 3, characterised in that the oblong holes (22, 47) are arranged in fork legs (17, 32) of the fixing plate and of the hinge arm (1).
5. Cabinet hinge according to one of Claims 1 to 4, characterised in that the fixing plate (2) consists of a base plate (4) and an intermediate plate (5).
6. Cabinet hinge according to one of Claims 1 to 5, characterised in that the hinge arm (1) can be rotated on the intermediate plate (5) and is mounted such that it may be fixed at various angular positions.
7. Cabinet hinge according to one of Claims 1 to 6, characterised in that the intermediate plate (5) is mounted on the base plate (4) so that it may be longitudinally shifted and fixed.
8. Cabinet hinge according to Claim 7, characterised in that a self-locking cam mechanism (13) is provided for the longitudinal displacement of the intermediate plate on the base plate.

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