EP2093361A2 - Attachment device - Google Patents

Abstract

The attachment device (1) has a four-joint (6), which has an attachment piece for fixing on a tilted furniture piece and another attachment piece (10) for fixing on a furniture corpus (4). A damping device (15) is operated both in opening and in closing direction of tilted furniture piece and both the closing and the opening damping of the damping device are carried out by a pivoted lever (7,8) of the four-joint.

Description

The invention relates to a fastening device for connecting a pivoting furniture part, such as an open and zuschwenkbaren door of a kitchen cabinet furniture with a four-bar linkage, wherein the four-bar linkage has a fastening piece for attachment to the pivoting furniture part and a second attachment piece for fixing to a furniture body, and between the two attachment pieces are provided on these mounted pivot lever, wherein the pivot levers is associated with a damping device.

Fastening devices of the aforementioned type are used in particular to up and zuzuschwenken front elements of kitchen cabinets about a horizontal axis. For this purpose, fittings with four joints are known to have pivoting levers, which can attack a damping device. The closing damping is conventionally carried out by separate impact absorbers. An opening damping is integrated in a gas spring or there are known Spirischruckfederpakete, which provides an additional shock absorber for the opening damping exhibit. The components required for the closing and opening damping are significant.

It is an object of the present invention to provide a fastening device of the type initially known, in which an effective closing and opening damping is realized, but which builds less expensive.

To solve this problem, the fastening device of the type according to the invention is characterized by the features specified in claim 1. With regard to essential embodiments, reference is made to claims 2 to 25.

Thus, a fastening device is provided, in which both the opening and the closing damping via one and the same damping device takes place. The damping device comes during a closing or opening operation or the closed position in each case from the damped position, moves during the opening or closing movement initially out of this again and passes during the subsequent movement phase again into the damped position, so that the damping device in the respective opening end position and in the respective closing end position in the damped position. It is therefore a single-acting damper. The damping device is therefore effective over the entire path of an opening and closing movement. This is preferably assigned to a single one of the pivot levers of a four-bar link, so that also accounts for connecting parts to additional pivoting levers. It is also conceivable, the operation of a damping device for opening by a pivot lever and the operation for closing by the other pivot lever. Although this results in a higher construction cost, but the design possibilities to achieve different damping characteristics for opening and closing by different start-up curves are thereby improved.

Preferably, it is also possible to individually adapt the respective damping characteristic over rolling or equalizing curve elements.

A linear force on the damper is caused by curve elements which are provided on one or both pivot levers in the vicinity of a base plate of the attachment piece on the furniture part. In addition, it is possible to transmit forces via an intermediate backdrop. By this arrangement, it is possible to optimally adjust the damping path and the damping force over the entire pivoting range of the furniture part with smooth transitions in each area. Alternatively, it is also possible depending on the lever shape or fitting design, e.g. to initiate the opening damping of the one pivot lever and the closing damping of the other pivot lever on one and the same damping element.

The damping device itself may have a linear-acting damper but also a single-acting rotary damper.

It is also possible to realize a damping by a unidirectional rotary damper is fixed in position fixed on a base plate of the fastening device relative to the pivoting range of a pivot lever. The pivot lever may be formed so that it protrudes beyond its pivot point and has an outer toothed segment. Accordingly, an internally toothed segment is provided on the side of the pivot lever, which is assigned to the rotary or pivot bearing. Upon pivoting of the pivot lever in the respective Schwenkendstellungen comes on the defined length of the tooth segments, the engagement with the rotary damper and thus targeted attenuation. It is conceivable that the segments of the external teeth and the internal teeth are executed on one and the same pivot lever, but also in each case on two different pivot levers.

Preferably, a pivot lever is formed with its front end as a curved cam, which cooperates with a displaceable in a longitudinal guide link part, which in turn is in operative connection with a damping element. During a raising and lowering motion, the slide part passes through a dead center position via the curved path control, so that the damping element can be effective both when closing the pivoting furniture part and when the furniture part is being opened.

Preferably, two relatively narrow, but similarly wide pivoting levers are used which overlap or overlap in the side view approximately during the entire pivoting movement, in particular at least in the region, in which they are freely accessible, ie accessible with your fingers. Here, a pivot lever moves once left and right once by a maximum lever width to the other during a pivoting movement, so that it is desirable that never a gap greater than about 4 mm. The levers move in a parallel displacement to each other, it is irrelevant whether the pivot lever have a straight, curved, crescent-shaped or L-shaped configuration.

In this case, a lever width is provided, which preferably corresponds to about two-thirds to half of the height distance between the bearing points of the two pivot levers on the attachment piece of the pivoting furniture part. The pivot lever can be designed to be very flat to save space and are arranged close to each other and move during their pivotal movement so close together that even from this direction never a gap greater than about 4 mm. Thus, an effective Fingerklemmschutz is provided in each direction and at the same time a maximum useful width inside the cabinet is guaranteed.

From the closed position with, for example, overlapping levers, a pivoting lever can advance ahead of the other until it completely overtakes it at a maximum. Then it moves in the opposite direction to the other pivot lever again, is congruent and then pivots to the pivot end position on the opposite side with its full width over.

A linear force on the damper is brought about by cam elements provided on one or both pivot levers in the vicinity of a base plate. In addition, it is possible to transmit forces via an intermediate backdrop. By this arrangement, it is possible to optimally adjust the damping path and the damping force over the entire pivoting range of the furniture part with smooth transitions in each area. Alternatively, it is also possible depending on the lever shape or fitting design, e.g. to initiate the opening damping of the one pivot lever and the closing damping of the other pivot lever on one and the same damping element.

Likewise, it is also possible to realize damping by fixing a single-acting rotational damper in a fixed position on a base plate of the fastening device relative to the pivoting region of a pivoting lever. The pivot lever may be formed so that it protrudes beyond its pivot point and has an outer toothed segment. Accordingly, an internally toothed segment is provided on the side of the pivot lever, which is assigned to the rotary or pivot bearing. Upon pivoting of the pivot lever in the respective Schwenkendstellungen comes on the defined length of the tooth segments, the engagement with the rotary damper and thus targeted attenuation.

Preferably, a synchronization rod between the four joints provided on both sides of the furniture body is also provided. This synchronization rod is preferably provided coaxially with the main bearing points on a base plate of the fastening device. These are the bearings of the pivot lever associated with the furniture body. In order to ensure optimal transmission of forces, a bearing bush made of, for example, an A-aluminum extruded profile is provided as a synchronizing rod at the ends of a half-shell shaped tube is determined with corresponding offsets or widening to the outside, whereby a larger lever arm is to be realized. The determination can be made on a space-saving to be realized clamping, for example by means of a clamping screw. For a large torque or power transmission is possible. Such pivot bearing and simultaneous synchronization rod fixation can be easily accommodated on a very narrow width, so that when using a cap only a round tube is visible. The bend or integrally formed drive lugs can be hooked into corresponding trough-shaped undercuts in the bearing bushes. By a clamping screw on the opposite side of the driver tab, the connection is secured. The screwing of the clamping screws can be slightly oblique, so that they are already screwed before inserting the synchronization rod in the bearing bushes and the clamping can be done with a few turns.

A particular advantage of such a designed synchronization rod is that it is very easy to build on the one hand and on the other hand can be used after mounting the fitting side parts in the body. The force or torque transmission takes place in the immediate vicinity of the pivot lever with a greater distance of the connection point to the pivot axis relative to the diameter of Synchronization rod. There is a combination of frictional connection and positive connection.

Preferably, it is also provided that in order to support the up and Zuschwenkbewegung as energy storage a spiral compression spring package is provided, which can be locked without tools in the fitting and is always safe to replace. By length-limited guide rods, the compression spring package can not extend beyond the maximum deflection in the fitting. With such a fitting, the spring force packages can be mounted immediately before the latching of the furniture front or even thereafter. Known firmly mounted unsecured powerhouses have the great disadvantage that the preloaded spring without the counterweight of the furniture front can catapult-like claw-like handling and cause considerable injury, which is avoided by the above-described spiral compression spring package.

Fig. 1 bis 7

ein Ausführungsbeispiel einer Befestigungseinrichtung nach der Erfindung in verschiedenen Schwenkstellungen des schwenkbaren Möbelteils,

Fig. 1.1 bis 7.1

die jeweilige Einzelheit A in den Fig. 1 bis 7, vergrößert,

Fig. 8 und 9

die Ausbildung eines Schwenkhebels im Zusammenspiel mit einem Rotationsdämpfer,

Fig. 8.1 und 9.1

vergrößert die Einzelheit A bzw. B in den Fig. 8 und 9,

Fig. 10

in verschiedenen Darstellungen eine Synchronisierungsstange mit endseitigen Halbschalen und mehrere Darstellungen des Lagerbuchsenteils, und

Fig. 11

in mehreren Darstellungen ein Spiraldruckfederpaket als Kraftspeicher für die Befestigungsvorrichtung.

Further advantages and embodiments of the invention will become apparent from further dependent claims, the following description and the drawings. In the drawing show:

Fig. 1 to 7

An embodiment of a fastening device according to the invention in different pivotal positions of the pivoting furniture part,

Fig. 1.1 to 7.1

the particular detail A in the Fig. 1 to 7 , enlarged,

8 and 9

the formation of a pivot lever in conjunction with a rotary damper,

Fig. 8.1 and 9.1

increases the detail A or B in the 8 and 9 .

Fig. 10

in different representations a synchronization rod with end half shells and several representations of the bearing bush part, and

Fig. 11

in several representations a spiral compression spring package as energy storage for the fastening device.

In the figures, basically the same parts are provided with matching reference numerals.

1, the fastening device for connecting the pivotable furniture part 2 is numbered. In the illustrated embodiment, a Küchenmöbeloberschrank 3 is shown with a furniture body 4. The front panel 2 is as in the FIGS. 1 to 7 shown and zuzuschwenken about a main pivot axis. 5

The fastening device 1 has a four-bar linkage 6 with two pivoting levers 7 and 8 and a fastening piece 9 which is fixed to the front panel 2 and a Fixing piece 10, which is fixed to the furniture body 4. The Aufschwenkbewegung is supported by a force accumulator 11 in the form of a spiral compression spring package, the even closer in connection with the explanation of FIG. 11 will be presented.

As in detail closer to the Fig. 1 to 7 can be seen, the pivot lever 7 and 8 have an arrangement and a matched lever width. For this purpose, they are mounted on the attachment piece 9 in bearings 12 and 13. These bearings 12 and 13 have a height distance which is substantially twice as large as the lever width.

Like from the Fig. 1 it can be seen overlap the pivot lever 7 and 8 in its rectilinear region in the closed position of the front panel substantially. In the course of its pivotal movement, this (partial) overlap or overlap is maintained or there is never a gap that is greater than about 4 mm, whereby an effective Fingerklemmschutz is realized. During the pivoting movement of the pivot lever 7 moves relative to the pivot lever 8 first down and then moves in the opposite direction upwards, so that in the fully swiveled position according to Fig. 6 the front in the drawing representation pivot lever 7 is located above the rear in the plane of the pivot lever 8.

Like the same Fig. 1 to 7 , especially the Fig. 1.1 to 7.1 , it can be seen, the four-bar 6 is associated with a damping device 15, both is effective in the opening and closing direction. This damping device can interact with two pivoting levers 7, 8. However, it preferably acts together with a pivot lever, as shown in the exemplary embodiment. This is the pivot lever 7 in the embodiment shown. For this purpose, the pivot lever 7 can interact directly with a damper of the damping device 15. In the present embodiment, one end of the pivot lever 7 is formed as a curved cam 16, which is assigned to a guided in a longitudinal guide 17 slide gate 18. This gate slider 18 is also provided with a contour 19 on which the curved cam 16 of the pivot lever 7 slides off.

How closer from the Fig. 1 to 7 and in particular also the enlarged cutouts after the Fig. 1.1 to 7.1 emerges, the sliding block slide 18 from in the Fig. 1 / 1.1 shown starting position during the pivoting movement into a position, wherein the illustrated screw guides 20 are in the left end position ( Fig. 4 ), then the in Fig. 6 apparent right end position, which corresponds to the opening loss. Conversely, it works the same way, so that then in the final situation, the in Fig. 1 shown end position is reached, in which the screws 20 turn the Fig. 6 have reached the appropriate end position, which corresponds to the closing loss.

In the 8 and 9 or 8.1 and 9.1, alternatively, a rotary damper 21 is shown, wherein the pivot lever 7 is formed such that it protrudes beyond its front pivot point 22 and is formed as an outer toothed segment 23. Of Further, it has an internally toothed segment 24, wherein the segments 23 and 24 in the course of the pivoting movement come into engagement with the provided with an external toothing rotational damper 21, so that also on the pivot lever 7 with a damping element 15, the opening and closing attenuation can be accomplished ,

As further detail Fig. 10 it can be seen, at the main bearing 5 a synchronization rod 25 may be provided. This synchronization rod 25 is therefore coaxial to the pivot axis 5 of the pivot lever 8 to be arranged and therefore provided on the furniture body 4 associated attachment piece 10 to both side walls of the furniture body 4. For this purpose, the ends of the synchronization rod 25 are widened in the shape of a half shell, so that they form a half-shell 26 with bent ends which form driving lugs 27. These drive lugs together with the semicircular shell 26 are each to be inserted in a bearing bush 28, which has a trough-shaped undercut 29 and into which a clamping screw 30 with an oblique screw alignment is to be screwed. In addition, a round area 31 is still provided, so that the half-shell 26 can be used there with the driving lugs 27 under positive engagement and can be clamped by means of the clamping screw 30. Due to the larger distance of the drive lugs a larger torque and thus a high-torque transmission is made possible by the synchronization rod 25. The synchronization rod 25 is very easy to use after mounting the fitting side parts. The power transmission takes place in the immediate vicinity of the pivot lever 8 and a maximum circumference and directly above the fulcrum of the pivot lever. 8

That in the Fig. 11 shown compression spring package 30 is formed as a secured, biased self-contained energy storage 34, which can be locked without tools in a fitting or at any time is exchangeable safely. By length-limited guide rods 35, the compression spring assembly 33 remains exactly at the largest possible deflection in the fastening device. The compression spring assembly 33 is mounted by clamping on the pivot lever side behind the crank pin and locking on the other side onto ball bolts of a base support plate. The coil springs 36 can therefore be mounted as powerhouses immediately before the latching of the furniture front or even thereafter. About an adjusting screw 37, the pivoting furniture part can be individually tuned to the motive power.

Claims (25)

Fastening device (1) for connecting a pivoting furniture part (2), for example, an up and down door of a kitchen cabinet furniture, in particular with a four-bar linkage (6), wherein the four-bar linkage (6) a first attachment piece for attachment to the pivoting furniture part (2) and a second attachment piece (10) for attachment to a furniture body (4) and between the two attachment pieces (9,10) a plurality of, in the operation of a four-bar hinge mounted on this pivot lever (7,8) are provided, wherein the pivot levers (7, 8) is associated with a damping device (15), characterized in that the damping device (15) in both the opening and closing direction of the pivotable furniture part (2) is effective and that both the closing and the opening damping of the damping device (15) via one of the pivoting levers (7,8) of the four-bar linkage (6). Fastening device according to claim 1, characterized in that one end of a pivoting lever (7, 8) as a curved cam (16) is formed and / or connectable to a curved cam, which is associated with the damping device (15). Fastening device according to claim 1 or 2, characterized in that between the cam-shaped cam (16) having pivot lever (7, 8) and the damping element (15) in a longitudinal guide (17) guided sliding block slide (18) is arranged. Fastening device according to claim 3, characterized in that the sliding block slide (18) on its the pivot lever (7, 8) facing side with a contour (19) is provided on which the curved cam (16) of the pivot lever (7, 8) slides off , Fastening device according to one of claims 1 to 4, characterized in that a unidirectional rotary damper (21) on a base plate relative to the pivoting range of a pivot lever (7, 8) is provided. Fastening device according to claim 5, characterized in that the pivot lever (7, 8) is formed so that it projects beyond its pivot point (22) and is formed as an outer toothed segment (23). Fastening device according to claim 5 or 6, characterized in that on the side of a pivot lever (7, 8) in the region of its pivot point (22) an internal toothed segment (24) is provided. Fastening device according to claim 6 or 7, characterized in that the outer toothed segment (23) and the inner toothed segment on the side of one and the same pivot lever (7, 8) in the region of its pivot point (22) is provided. Fastening device according to one of claims 1 to 8, characterized in that the pivot lever (7, 8) have a lever width and / or lever shape, in which the pivot lever (7, 8) overlap approximately during their entire pivotal movement, at least in their injury-prone areas. Fastening device according to claim 9, characterized in that seen during the pivoting movement possible gap in the overlap of the pivot lever seen from the side is at most a measure of about 4 mm. Fastening device according to claim 9 or 10, characterized in that the pivot levers (7, 8) have a lever width, in relation to the height distance (12, 13) of the bearing points of the pivot lever (7, 8) on which the pivoting furniture part (2). associated attachment piece (9) is about 2: 3 or less. Fastening device according to one of claims 9 to 11, characterized in that the pivot lever (7, 8) in the closed position of the furniture part, at least in the central region of its longitudinal extent approximately overlap each other in terms of their lever width. Fastening device according to one of claims 9 to 12, characterized in that during the swiveling out of the pivotable furniture part (2), a pivot lever (7) the other (8) so far advanced until it at least approximately overhauled. Fastening device according to one of claims 9 to 13, characterized in that the pivoting levers (7,8) are formed sickle-shaped or (bent or curved according to a straight course. Fastening device according to claim 14, characterized in that both pivoting levers (7, 8) are made approximately uniform in their width and / or basic shape. Fastening device according to one of claims 9 to 15, characterized in that the lateral distance between the pivot lever (6) and the pivot lever (7) seen from the front view is at most a measure of about 4 mm. Fastening device according to one of claims 1 to 16, characterized in that a compression spring package (33) is provided, which is designed as a secured prestressed energy storage. Fastening device according to claim 17, characterized in that the compression spring assembly (33) without tools in a fitting of the fastening device (1) is formed latched and interchangeable. Fastening device according to one of claims 1 to 18, characterized in that on both sides of the fastening device via a synchronization rod (25) connected four joints (6) are provided. Fastening device according to claim 19, characterized in that the synchronization rod (25) is arranged coaxially to the pivot axis (5) of the pivot lever (8), which is provided on the furniture body (4) associated with the attachment piece (10). Fastening device according to claim 19 or 20, characterized in that the connection point of the synchronization rod (25) at a distance from the pivot axis (5) of the attachment piece (10) of the furniture body (4) fixed pivot lever (8). Fastening device according to one of claims 19 to 21, characterized in that the ends of the synchronization rod (25) in the form of a half shell (26) are formed widened with bent ends (27) which can be fixed in a correspondingly shaped, to be fixed to a four-bar bearing bush part (28). Fastening device according to claim 22, characterized in that the synchronization rod (25) with its bent ends on the bearing bush part (28) can be clamped. Fastening device according to one of claims 22 to 23, characterized in that the bent ends (27) of the half-shell (26) flat driving lugs (27) form, which hook into corresponding trough-shaped undercuts (29) in the bearing bushes (28) and that the Synchronization rod (25) on the half-shell-shaped part (26) centered on a corresponding round piece (31) of the bearing bush (28). Fastening device according to one of claims 23 to 24, characterized in that the clamping of the synchronization rod (25) on the bearing bush (28) via a clamping screw (30), wherein the screwing of the clamping screw (30) has an oblique orientation.

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