EP0468176B1 - Hinge for the articulated junction of two wings of a folding door - Google Patents

Abstract

The invention relates to a hinge (5) for articulated junction of two part wings (1, 2) of a door wing, one part wing of which is articulated on a body part of a piece of furniture or the like, consisting of two fastening parts which can be connected to each of the part wings and which have hinge arms (7, 7') connected to one another by means of a joint. To achieve the object of providing a hinge of this type which can be adjusted in a simple way, whilst being simple to assemble, the fastening parts consist of baseplates (6, 6'), on which the hinge arms (7, 7') are fastened so as to be adjustable in their longitudinal direction and/or in at least one direction transverse to this longitudinal direction. <IMAGE>

Description

The invention relates to a hinge for the articulated connection of two partial wings of a door leaf, of which a partial wing or the like on a body part of a piece of furniture. is articulated, consisting of two stop parts which can be connected to each of the partial wings and which are provided with hinge arms connected to one another by a joint.

Such a hinge is usually used for the articulated connection of the partial wing of a two-part corner cabinet door wing and is known for example from DE-OS 37 29 531. This known hinge consists of two cup-shaped fastening fittings forming the stop parts, which are let into their mounting in corresponding flat blind hole-like cutouts which are cut from the narrow end faces of the partial wings. With one of these fastening fittings, a fork-shaped hinge arm is integrally connected, which between its forked parts encloses an angled part of the other hinge arm, which is screwed to the other fastening fitting. Apart from the fact that the assembly of the known hinge is expensive because of the milled recesses required to accommodate the holding pots of the fastening fittings after installation, this can only be adjusted by longitudinally displacing one of the hinge arms on its mounting bracket, so that the possibilities for subsequent adjustment of the partial wings relative to one another are very limited.

The object of the invention is to provide a hinge of the type specified, the manufacture and storage of which is simplified and which can be adjusted in a simple manner with simple assembly.

According to the invention, this object is achieved in a hinge of the generic type by the characterizing features of patent claim 1.

Since the hinge according to the invention has identical base plates and hinge arms, both manufacture and storage are simplified.

The hinge according to the invention can be assembled in a simple manner in that its hinge arms are fastened to base plates which are screwed to the edge regions of the inner sides of the partial wings. To attach the base plates, only the usual mounting holes need to be drilled, into which the mounting holes of the base plates are then screwed. The hinge arms are then attached to the base plates in a manner known from conventional furniture hinges.

The base plate expediently consists of a base plate and at least one intermediate plate which can be displaced or pivoted relative to the latter and can be fixed in a displaced or pivoted position and which carries the hinge arm. Such base plates supporting a hinge arm are known from EP patent publication 0 348 656 A1, so that this is due to the closer design of the base plate and the base plate and the Intermediate plates can be referenced. The base plates for fastening the hinge arms of the hinge according to the invention can in principle be designed in the same way as the base plates known from the EP publication. The hinge arms can thus be screwed to the base plate or an intermediate plate or connected to them by a snap connection.

In the hinge known from DE-OS 37 29 531, the hinge arms connected to the two fastening fittings are also designed differently, which in turn means an increased production outlay. In contrast, it is provided according to the invention that each hinge arm has a simply angled part provided at the end with the joint, which extends in the assembled state over the narrow end face of the partial wing. According to an advantageous embodiment, the simply angled part has, at the end, adjacent to a step-shaped recess formed by a shoulder, a lateral, projecting cheek which engages in the shoulder of the other angled part which is of the same mirror image; both cheeks are provided with an aligned bearing bore which passes through a bearing pin that connects them in an articulated manner.

The hinge known from DE-OS 37 29 531 is designed as a snap hinge, wherein the snap mechanism consists of a with a mounting bracket there is an articulated rod with a thickened head at the end and a locking step into which a nose of a spring-loaded lever which is pivotably mounted in the other fastening fitting engages.

When the door is open, this snap mechanism becomes unattractive. In a further embodiment of the invention it is therefore provided that each bearing bore in the region of the recess has a cam curve which partially surrounds it, on the circumferential surface of which a spring-loaded slider is supported, which is guided in a bore of the step formed by the extension. The desired opening and closing characteristics of the hinge can be achieved by appropriate design of the peripheral surface of this cam curve.

The cam curve expediently has such a characteristic that the angled parts of the hinge arms tend to pivot starting from an angle which is slightly greater than 90 ° in the direction of a smaller pivoting angle. Such a closing characteristic secures the closed position of the double-leaf door, in which the partial leaf of an corner cabinet is at an angle of approximately 90 °. Relative to the door leaf, the closing characteristic is such that the angled parts of the hinge arms try to pivot them relative to one another in the direction of a larger swivel angle.

The closing characteristic can also be designed so that in the area of a pivoting angle of the door leaf, which is slightly less than 180 degrees, it tries to pivot it into an aligned position in which the angled parts of the hinge arms lie approximately parallel to one another and abut one another laterally.

Finally, the cam curve can have such a design that in a pivoting range of the angled parts of the hinge arms, which is approximately between 80 ° and 10 °, they do not exert a moment on the partial wings.

Finally, a nose can be provided in the end region of the cam curve, which in the angled position of the partial wings abuts against a counter-stop of the angled part of the other hinge arm and thus limits the smallest pivoting angle of the partial wings.

Since both the base plates and the hinge arms are of identical design, the hinge according to the invention can be mounted on the right and on the left, and simple adjustment is additionally ensured.

Fig.1

eine Ansicht von oben auf eine zweiflügelige Tür eines Eckschranks im geschlossenen Zustand, in der deren Teilflügel eine rechtwinkelige Stellung zueinander einnehmen,

Fig.2

eine Seitenansicht des die Teilflügel der zweiflügeligen Tür verbindenden Scharniers im geschlossenen Zustand des Türflügels, teilweise im Schnitt,

Fig.3

das Scharnier nach Fig.2 im geöffneten Zustand der Tür, in der die Teilflügel miteinander fluchten,

Fig.4

eine Unteransicht eines Scharnierarms

Fig.5

einen Längsschnitt durch den Scharnierarm längs der Linie V-V in Fig.4,

Fig.6

eine vergrößerte Darstellung des nockenförmigen Fortsatzes des abgewinkelten Teils des Scharnierarms,

Fig.7

einen Schnitt durch den Scharnierarm längs der Linie VII-VII in Fig.5 und

Fig.8

das auf der Nockenfläche gleitende Druckstück in Seiten- und Draufsicht

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

Fig. 1

a view from above of a double-wing door of a corner cupboard in the closed state, in which the partial wings assume a perpendicular position to one another,

Fig. 2

3 shows a side view of the hinge connecting the partial wings of the two-wing door in the closed state of the door wing, partly in section,

Fig. 3

the hinge according to Fig.2 in the open state of the door in which the partial wing swearing with each other,

Fig. 4

a bottom view of a hinge arm

Fig. 5

3 shows a longitudinal section through the hinge arm along the line VV in FIG. 4,

Fig. 6

2 shows an enlarged illustration of the cam-shaped extension of the angled part of the hinge arm,

Fig. 7

a section through the hinge arm along the line VII-VII in Fig.5 and

Fig. 8

the pressure piece sliding on the cam surface in side and top view

1 shows a double-winged door of a corner cabinet consisting of the outer wing 1 and the inner wing 2, of which the inner wing 2 is articulated to a load-bearing side wall 4 of the corner cabinet by wide-angle hinges 3 of conventional design. In the position shown in full lines, the door 1, 2 is in its closed position, in which the partial wings 1, 2 assume a perpendicular position to one another. The two partial wings 1, 2 are connected to one another by hinges 5, one of which is described in more detail with reference to FIGS. 2-7.

To open the two-leaf door, the partial wing 1 is pivoted in the direction of arrow A into the dot-dash position 1 ', so that the partial wing 1 can be pivoted past the following door or wall without hindrance. The opened door, in which the partial wings 1 ″ and 2 ″ assume an aligned position, that is to say lie in one plane, is also shown in dash-dot lines.

2 shows a one-piece hinge 5 which connects the partial wings to one another in an enlarged manner. The hinge consists of identically designed base plates 6, 6 'on which identically designed hinge arms 7, 7' are held, so that only the base plate 6 and the hinge arm 7 are described in more detail below.

The base plate 6 consists of a base plate 8, which is provided in a manner not shown with mounting holes through which the mounting screws, not shown, grip, through which this is screwed to the wing part 2. With the base plate 8 is an intermediate plate 10 carrying the hinge arm 7 screwed to the hinge arm 7, is connected in basically the same way to the hinge arm 7 as the intermediate plate shown in FIG. 2 of the European patent publication 0 348 656 A1, so that this European one Patent publication is referred to the intermediate plate and the type of connection of the hinge arm 7 with this intermediate plate.

The base plate 6 can also have the structure shown in FIG. 2 of EP 0 348 656 A1, the intermediate plate 10 being screwed directly to the lower intermediate plate or, as can be seen from the EP publication, can also be locked with this by a snap connection .

The fastening screw 9 engages through a keyhole-like elongated hole 11 of the intermediate plate 10, so that the basic setting of the hinge arm 7 can be achieved in that the intermediate plate connected to the hinge arm is pushed back as far as the stop on the fastening screw 9. The hinge arm 7 is shown in the Formed in a U-shaped profile and articulated by a hinge pin 12 to the rear end region of the intermediate plate 10, which is also U-shaped. In lateral legs, the intermediate plate 10 has elongated holes 13 in its front area, into which guide pins 14 engage, which are fastened to the inner flanks of the legs of the U-profile of the hinge arm 7. By turning the adjusting screw 15, which is screwed into the web part of the hinge arm, a side adjustment of the hinge arm 7 can be effected. The set screw 15 is provided with an annular groove which engages in a freely running elongated hole in the intermediate plate 10.

Furthermore, the base plate 8 can have an additional intermediate plate, which allows a height adjustment of the hinge.

The hinge arm 7 has a front angled part 20 which engages over the narrow end faces of the partial wings 2, 1 in the manner shown in FIGS. 2 and 3. This angled part 20 has at its lower free end a recess 21 which is formed by a step-shaped shoulder. A bore 23 opens into the step surface 22 and runs in the longitudinal direction of the angled part 20. The outer part of this blind hole 23 has an elongated profile with opposite rounded sides, which corresponds to the cross section of the slider 24, which can be seen from Figure 8b. In this way, the slider 24 is held non-rotatably in the bore 23. Between the back of the slide 24 and the bottom of the bore 23, a compression spring 26 is clamped in the manner shown in FIG. 2, which presses the slide with its roof-shaped beveled front edge 27 against the cam curve 28. The cam curve 28 is provided on a projecting projection 29 which laterally delimits the recess 21. The projection 29 has a bore 30 provided that is aligned with the bore 30 in the corresponding projection of the complementary hinge arm 7, the aligned bores of the hinge pins 31 being passed through for the articulated connection of the two hinge arms 7, 7 '.

As can be seen from FIG. 6, the cam curve 28 has a section 35 which, in the closed position shown in FIG. 2, exerts a closing pressure on the partial wings 1, 2. The section 35 is followed by a central curve section 36, which is curved concentrically around the hinge pin 31, that is to say has a constant radius, so that the cam curve lies in a region between the closed position and the open position of the partial wing in which it is located take an aligned position with each other, no moment is exerted on them. A section 37 with a decreasing radius adjoins the concentric curve area and secures the open position of the partial wings 1 ″, 2 ″ shown in FIG.

Finally, the cam curve is provided at its outer end with a nose 38, which cooperates with the counter-stop 39 and limits the smallest angle that the partial wings 1, 2 can take. This angle can be seen from FIG. 1 and is given between the position of the partial wings 2, 1 '.

Since, due to the mirror-image design of the hinge arms 7, 7 ', both the cam curves 28 provided on the projections 29 and the spring-loaded sliding pieces 24 are provided in duplicate, the spring-loaded sliding pieces 24 sliding on the cam curves are able to exert considerable closing and opening moments, due to the division the closing forces on each individual locking device show only slight wear.

The spring-loaded sliders cooperating with a cam curve are known per se from DE-OS 29 47 153 for a hinge of a different type.

When installing the hinge arms 7, 7 ', they can be pushed back before tightening the fastening screws 9 until they abut the shaft of the fastening screw 9, which then ensures the basic position. The elongated hole 11 allows the hinge arms to be adjusted in the longitudinal direction.

It is particularly advantageous if the base and intermediate plates 8, 10, possibly with the arrangement of a further intermediate plate, permit a height adjustment of the hinge arm 7, that is to say an adjustment of the hinge arm 7 parallel to itself.

If a further negative setting of the hinge arm, that is to say a further shifting back, is no longer possible, an adjustment of the other partial wing in the corresponding direction is nevertheless possible by actuating the screw 15. Because by actuating the adjusting screw 15, the door leaf is pivoted relative to the hinge arm. Such a pivoting would have the consequence, for example, by actuating the adjusting screw 15 'in FIG. 2, that the partial wing 1 is further approximated to the partial wing 2 in the closed position shown, because both hinge arms 7, 7' are connected to one another by the hinge pin 31.

Claims (8)

1. Hinge for the articulated junction of two wings of a folding door, of which one wing is coupled to a carcass part of a piece of furniture or the like, consisting of two stop parts which can be connected to each of the wings, said stop parts being provided with hinge arms connected together by an articulated joint,
   characterised in that
   the two stop parts consist of identically formed base plates (6, 6') on which the identically formed hinge arms (7, 7') are mounted so as to be adjustable in the direction of their longitudinal direction and/or in at least one cross-direction transverse to said longitudinal direction, and that each hinge arm (7, 7') comprises a simply angled part (20, 20') provided with the articulated joint at its end, said part (20, 20'), when assembled, extending across the narrow face of the wing (1, 2).
2. Hinge as claimed in Claim 1, characterised in that the base plate (6) comprises a main plate (8) and at least one intermediate plate (10) bearing the hinge arm (7) and capable of being displaced or pivoted towards said main plate (8) and of being fixed in a displaced or pivoted position.
3. Hinge as claimed in Claims 1 or 2, characterised in that each angled part (20), which, when assembled, extends across the narrow face of the wing (1, 2), has at its end, adjacent to a step-shaped recess (21) formed by a shoulder, a laterally protruding rabbet (29) which engages with the shoulder of the other angled part (20'), which is of the same shape as the first angled part (20), though forming a mirror-image thereof, and that the two rabbets (29) are provided with an aligned bearing drill hole (30) interspersed by a bearing bolt (31) linking the two in an articulated manner.
4. Hinge as claimed in Claim 3, characterised in that, in the region of the recess (21), each bearing drill hole (30) has a cam profile (28) partially surrounding said region, with a spring-loaded sliding member (24) resting on the peripheral surface of said cam profile (28) and located in a drill hole (23) in the step formed by the shoulder.
5. Hinge as claimed in any of Claims 1 to 4, characterised in that the cam profile (28) is designed such that the angled parts (20) of the hinge arms (7, 7'), proceeding from an angle greater than 90°, attempt to pivot in the direction of a smaller pivoting angle.
6. Hinge as claimed in any of Claims 1 to 5, characterised in that the cam profile is designed such that, in the region of a pivoting angle of the wings (1, 2) which is slightly less than 180°, said wings attempt to pivot into a mutually aligned position, in which the angled parts (20, 20') of the hinge arms (7, 7') are approximately parallel to one another and abut one another laterally.
7. Hinge as claimed in any of Claims 1 to 6, characterised in that, in the region between the profile sections which attempt to pivot the wings into the closed or open positions, the cam profile is provided with a part of a curve concentric to the pivot axis.
8. Hinge as claimed in any of Claims 1 to 7, characterised in that, in the end region of the cam profile (28), there is provided a lug (38) which, in the angled position of the wings, abuts against a counter-stop (39) of the angled part of the other hinge arm and limits the smallest pivoting angle of the wings (1, 2) relative to one another.

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