EP0620346B1 - Hinge for the articulated junction of two wings of a folding door - Google Patents

Abstract

The hinge is for door leaves on a piece of furniture including an angle between them when shut, one of them being attached to the main body. An angular arm is fixed to a support plate on one of the leaves, and is coupled at its free end to an arm pivoting on the other leaf. The arm (6') fixed to the plate (7') is a standard one as used in a conventional double-joint hinge. A component (10) fixed to it hinges on the pivoting arm (18). Fixing can be by two dowels fitting in holes drilled in the component and the fixed arm. The plate to which the latter is fixed can be of standard design, allowing arm adjustment in one direction at least.

Description

The invention relates to a hinge for the articulated connection of two partial leaves of a door leaf according to the preamble of claim 1.

Hinges for the articulated connection of two wing parts of a door wing should be adaptable to wing parts of different thickness in a simple manner. In the case of hinges known from DE-U-92 03 048 and EP-A-0 463 439, adaptation to partial thicknesses of the wings is achieved in that the parts of the hinge arms bridging the gaps between the partial wings are divided and in a parting plane perpendicular to that bisects the angle enclosed by the partial wings, is displaceable and can be clamped together in the positions set by displacement by means of a clamping screw. The known hinges not only require complex special productions, they are also impaired in their stability in that the hinge arms are divisible and must be clamped together by means of fastening screws.

From EP-A-O 468 176 a hinge according to the preamble of claim 1 is known, which is provided with a one-piece angled hinge arm, which has to be specially manufactured, so that its production is relatively expensive due to the required special production.

The object of the invention is therefore to provide a hinge of the type specified, which can be easily adapted to different thicknesses of part of a door wing with reduced manufacturing costs and good stability.

According to the invention, this object is achieved by the characterizing Features of claim 1 solved.

Basically, every manufacturer of furniture hinges produces double-link hinges in large series, in which hinge arms that can be fastened to support plates are articulated with cup-shaped hinge parts via two links. These double-link hinges are the usual hinges for hinging furniture doors and flaps. According to the invention, the hinge consists of a hinge arm for double-link hinges available at every manufacturer of furniture hinges, with which the articulation part of the hinge arm connected to the pivotable hinge part is articulated. To produce the hinge according to the invention, it is therefore only necessary to produce the pivotable hinge part and the articulated part connected to it in a special production and then to connect it to the series hinge arm. As a result, the manufacturing effort required to produce the hinge according to the invention is significantly reduced because part of the hinge arm is already available from the usual series production of double-link hinges.

The articulation part of the hinge arm is firmly connected to the series hinge arm, so that there are no stability problems from an adjustability of the hinge arms. An adaptation to different thicknesses of partial wings is achieved in the hinge according to the invention in that customary special shapes of series hinge arms with associated support plates are used. In the usual series production of double-link hinges, different hinge arm shapes are produced, in which the articulated bores of the series hinge arms are at different distances from the body parts to which they are fastened via their support plates. A special adjustment of the pivotable hinge parts is not necessary because the adjustment to different thicknesses of the partial wings is achieved solely by selecting the series hinge arms and the associated support plates. The articulation part of the hinge arm according to the invention is connected to the hinge arm by two pins which penetrate the articulated bores of the series hinge arm and the bores of the articulation part which are aligned therewith. These pins are then riveted in the same way in the articulated bores of the series hinge arm, as is the case in the manufacture of double-link hinges when the handlebars are mounted on the pins.

The hinge arm can be mounted on conventional support plates, which allow the hinge arm to be adjusted in at least one direction. This adjustability of the hinge arm on conventional support plates allows the hinges to be further adjusted and adjusted.

The articulation part is expediently mounted in a cup-shaped hinge part. Furthermore, only one is expedient Articulated axis provided for mounting the articulated part. The articulation part can be provided with a plastic stop which is supported on a partial wing and which limits the smallest pivoting angle between two partial wings.

According to a preferred embodiment of the invention, it is provided that the articulation part is provided with a curve piece concentric with the pivot axis and a curve piece adjoining it via an outwardly directed step, on which a spring-loaded pin parallel to the pivot axis is guided, which in the angular closing area of the Partial wing rests against the step in such a way that the partial wings are spread in the direction of their angular closed position. The pin is expediently held by the curved end of a leaf spring, the other curved end of which is fastened in a slot in the pivotable hinge part, the pin being guided in elongated holes in the side walls of the pivotable hinge part.

Fig. 1

eine Draufsicht auf zwei gelenkig durch Scharniere miteinander verbundene Teilflügel, von denen ein Teilflügel durch ein Weitwinkelscharnier an eine Tragwand eines Möbels angelenkt ist,

Fig. 2

ein zwei Teilflügel miteinander verbindendes Scharnier, teilweise im Schnitt und in einer Stellung, in der sich die Teilflügel in ihrer rechtwinkelig zueinander stehenden Schließstellung befinden,

Fig. 3

eine der Fig. 2 entsprechende Darstellung, bei der jedoch die Teilflügel gegenüber den Teilflügeln nach Fig. 2 eine größere Dicke aufweisen,

Fig. 4

eine der Fig. 2 entsprechende Darstellung, bei der die Teilflügel den kleinstmöglichen Winkel miteinander einschließen,

Fig. 5

eine der Fig. 2 entsprechende Darstellung, bei der die Teilflügel sich in ihrer geöffneten Stellung befinden und den größtmöglichen Winkel zueinander einnehmen,

Fig. 6

eine Seitenansicht des Anlenkteils des Scharnierarms,

Fig. 7

eine Draufsicht auf den Scharniertopf und

Fig. 8

einen Schnitt durch den Scharniertopf längs der Linie VIII-VIII in Fig. 7.

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

Fig. 1

2 shows a plan view of two partial wings which are articulated to one another by hinges, of which one partial wing is articulated by a wide-angle hinge to a supporting wall of a piece of furniture,

Fig. 2

a hinge connecting two partial wings, partly in section and in a position in which the partial wings are in their closed position at right angles to one another,

Fig. 3

a representation corresponding to FIG. 2, in which however, the partial wings have a greater thickness than the partial wings according to FIG. 2,

Fig. 4

2 shows a representation corresponding to that in which the partial wings enclose the smallest possible angle with one another,

Fig. 5

2 shows a representation corresponding to FIG. 2, in which the partial wings are in their open position and are at the largest possible angle to one another,

Fig. 6

a side view of the articulation part of the hinge arm,

Fig. 7

a top view of the hinge cup and

Fig. 8

a section through the hinge cup along the line VIII-VIII in Fig. 7th

1 shows a plan view of a corner cabinet in which the partial wings 1, 2 of the door wing are in their right-angled closed position. The partial wings 1, 2 are connected to one another by at least two hinges 3 according to the invention, the inner partial wing 2 being connected to a supporting wall 5 of the cabinet by conventional wide-angle hinges 4. To open the corner cupboard, the wing 1 can first be pivoted by the angle alpha into the dot-dash position 1 ', in which the wing 1, 2 enclose the smallest angle with each other. From the lower part of FIG. 1, the partial wings 1 "and 2" can be seen in their fully open position, in which the partial wings are obtuse to each other.

The hinges 3 according to the invention consist of a cross section U-shaped series hinge arm 6, as is used in series production for conventional double-link hinges. This series hinge arm is attached to the partial wing 1 via a conventional support plate 7. The series hinge arm 6 and the support plate 7 are of conventional design and therefore need not be described in more detail. The support plate 7 expediently consists of a base plate and one or more intermediate plates, which are displaceable and / or pivotable relative to one another for the adjustment of the series hinge arm 6 and can be fixed relative to one another in the set positions.

The series hinge arm 6 has at its front end in its side legs two mutually aligned bores 8, 9, which in the manufacture of conventional double-link hinges kidney for receiving the hinge arm-side hinge pins Articulation part 10 of the hinge arm, so that the series hinge arm 6 can be connected to the articulation part 10 by pins which pass through the aligned bores of the series hinge arm and the articulation part and are riveted into the bores of the series hinge arm.

The articulation part 10 of the hinge arm is angled several times in the manner best seen in FIG. 6 and has an essentially U-shaped shape. The straight middle part 11 of the articulation part has a U-shaped profile. Angled, forked end parts 12, 13 adjoin the middle part 11, the legs of the forked end part 12 being provided with bores 14, 15 which are aligned with the joint bores 8, 9 of the series hinge arm 6. The forked legs of the end part 13 have aligned bores 16, which support the articulation part by a hinge pin 17 in the cup-shaped hinge part 18 serve. Between the legs of the straight central part 11 of the articulation part 10, a cylindrical section 20 made of plastic is held on a bolt 19, which section forms a stop limiting the opening angle.

The angled, forked ends 13 are mounted in a recess 22 of the hinge cup 18 around the hinge pin 17, the flat walls 23, 24 of the recess 22 forming guides for the angled and forked legs 13.

The ends of the forked legs are provided with a curve part 26 which is concentric with the bore 16 and to which a curve part 28 is connected via an outwardly directed step 27. On the curve 26, 27, 28 a pin 30 is guided parallel to the hinge axis 17 and is held in a slightly rolled end of a curved leaf spring 31. The other, also slightly rolled end 32 of the leaf spring 31 is held in a slot 33 which is located on the lower edge of a raised platform 34 forming the bottom of the cup-shaped hinge part 18. To assemble the pin 30 and the leaf spring 31, it is only necessary to hold the pin 30 inserted in the leaf spring against the two leading edges of the curves 26, 27, 28 and to depress the other leg of the leaf spring 31 such that the other end 32 in the holding slot 33 engages.

The representation according to FIG. 2 differs from that according to FIG. 3 in that the partial wings 1 ', 2' have a greater thickness in this. In order to enable assembly with identical dimensions of the articulation part 10 of the hinge arm, a series hinge arm 6 'with an associated support plate 7' is used in the thicker partial wings 1 ', 2' according to FIG. 3, in which the joint bores 8 'and 9' are closer are located on the partial wing 1 'and project further beyond it. From Figures 2 and 3 is thus it can be seen that the hinge according to the invention can be adapted to different thicknesses of partial wings with identical design of the articulation part and the hinge part articulated thereon in that different embodiments of series hinge arms with associated support plates are used.

As can be seen from FIG. 2, in the closed position the pin 30 loaded by the leaf spring 31 bears against the step 27 in the curve, so that the partial wings 1, 2 are biased towards their right-angled closed position. The pin 30 is guided in elongated holes 40 of the cup-shaped hinge part 18 so that it can carry out the necessary compensatory movement when sliding over the step 27.

The leaf spring 31 itself lies between the forked legs of the end part 13 of the articulation part 10.

Claims (7)

1. Hinge (3) for the articulated junction of two wings (1, 2) of a folding door which, in their closed position, assume an angled position in respect of one another, and of which one wing (2) is attached to a body component (5) of an item of furniture or similar,

   consisting of an angled hinge arm (6, 10) which may be fixed to one wing (1) and which is fixed on a mounting plate (7, 7'), and

   of a second hinge element (18) which can be fixed to the other wing (2), to which hinge element (18) the free end of the hinge arm (6, 10) is pivot mounted,

   with the angled hinge arm (6, 10) being angled in the slewing plane of the hinge (3) so that the link pin (17) connecting said angled hinge arm (6, 10) to the hinge element (18), which may be fixed to the other wing (2), runs transverse to said hinge arm (6,10),

   characterised in that

   the angled hinge arm (6, 10) consists of a straight section (6) which may be fixed to the mounting plate (7, 7'), and of an angled articulation section (10),

   the straight section (6) of the hinge arm (6, 10) corresponds to a double link hinge, and

   the articulated section (10) is connected to the straight section (6, 6') by two pins which pass through the link holes (8, 9) of the straight section (6, 6') and holes (14, 15) flush-aligned to these of the articulated section (10).
2. Hinge according to Claim 1, characterised in that the hinge arm (6) is fitted to a mounting plate (7) which facilitates the adjustment of the hinge arm in at least one direction.
3. Hinge according to Claim 1 or 2, characterised in that the articulated section (10) is mounted in a cup-shaped hinge element.
4. Hinge according to one of Claims 1 to 3, characterised in that the articulated section (10) is pivot mounted on a single axis of articulation (17).
5. Hinge according to one of Claims 1 to 4, characterised in that the articulated section (10) is provided with a plastic stop attachment (20) which rests on one wing.
6. Hinge according to one of Claims 1 to 5, characterised in that the articulated section (10) is provided with a curved element (26) which is concentric to the pivot axis (17), and a further curve element (28) adjoining this via an outwardly directed step (27), on which curved sections (26, 28) is guided a spring-loaded pin (30) arranged parallel to the pivot axis (17), which in the angled closing range of the wings (1, 2) rests against the step (27) such that the wings (1, 2) are spread in the direction of their angled closed position.
7. Hinge according to Claim 6, characterised in that the pin (30) is retained by the curved end of a bent leaf spring (31), the other curved end (32) of which is fixed in a slot (33) of the slewing hinge element (18), and is guided in oblong holes (40) in the side walls of the slewing hinge element (18).

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