The invention relates to an arrangement having a furniture door, in particular a fold-sliding door, and a, in particular chamber-formed, cavity for accommodating the furniture door.
Such arrangements are known, for example, from EP 0 433 726 B1 or DE 43 08 196 A1.
A problematic issue with the arrangements according to the state of art is the fact, in particular with heavy furniture doors, for example fold-sliding doors which are composed of a plurality of door wings, that the handling of the furniture doors requires a high physical effort of the operator, in particular in the case when the furniture doors are to be stored within the cavity.
It is therefore an object of the present invention to provide an improved arrangement with respect to the prior art, thereby avoiding the problems discussed above.
According to the invention, the arrangement includes a mechanical drive device for moving the furniture door between a, preferably fully, countersunk position within the cavity and a position outside of the cavity. In this way, moving the furniture door into the cavity and out of the cavity, respectively, can be significantly facilitated.
Furthermore, the drive device is configured so as to move the furniture door from the, preferably fully, countersunk position within the cavity into the position outside of the cavity. In this case, moving out the furniture door from the cavity is thus effected automatically.
An advantageous embodiment of the invention provides that the furniture door, during the entire movement between the, preferably fully, countersunk position within the cavity and the position outside of the cavity, can be driven by way of the drive device. This means that the drive device is active over the entire distance which the furniture doors covers between the, preferably fully, countersunk position and the position outside of the cavity. This is insofar beneficial because an operator, apart from initiating the movement, needs not to be operative in order to move the furniture door between the positions.
It has further turned out beneficial when the drive device includes a control curve for controlling a movement of the furniture door between the, preferably fully, countersunk position within the cavity and the position outside of the cavity. The provision of such a control curve has the advantage that the drive force exerted by the drive device can be transmitted to the furniture door according to a predetermined movement pattern in a metered manner. In this way, particularly harmonic movement sequences can be realized, for example in such a way that the furniture door can initially be driven, starting from the, preferably fully, countersunk position within the cavity with a high force and is then being braked and eventually reaches the position outside of the cavity with less speed. In this way, injuries of persons near the cavity as well as damages of a possible damping device for dampening the movement of the furniture door immediately before reaching the position outside of the cavity are prevented.
An advantageous development of this embodiment lies in the fact that the control curve can be adapted to different depths of the cavity, and the control curve, for this purpose, is composed of at least two segments which are adjustable relative to one another. In this case, the same control curve can always be used for cavities having a different depth, whereby the manufacturing costs can be reduced.
Alternatively or additionally, the drive device includes an energy storage member, preferably in the form of at least one tension spring, and a control element which is acted upon by the energy storage member and which rests against the control curve with the force of the energy storage member, wherein the control element is preferably in the form of a roller.
Therefore, the control curve can be stationarily arranged relative on the furniture door, preferably on a limiting surface of the cavity, and that the control element which is acted upon by the energy storage member can be coupled to the furniture door, preferably by way of a base fastening element of the furniture door, or vice versa.
Further, two basic compositions are possible in such a way that the control element, in the mounting position of the drive device, is supported on the upper side or on the lower side of the control curve.
It has also turned out to be beneficial when the control element, in the mounting position of the drive device and when the furniture door is arranged in the, preferably fully, countersunk position, assumes the highest point or the lowest point of the control curve.
Beneficial developments of the invention lie in the fact that the drive device, when the furniture door is arranged in the, preferably fully, countersunk position within the cavity, exerts a driving force to the furniture door, and/or the drive device, when the furniture door is arranged outside of the cavity, exerts a restraining force to the furniture door. In the first case, the furniture door, when being located in the, preferably fully, countersunk position within the cavity, can be moved out of the cavity very easily. In the second case, an unintentional pushing-in movement into the cavity at an early stage can be prevented.
In addition, the arrangement can include a locking device for releasably locking the furniture door in the preferably fully, countersunk position within the cavity, and the locking device can be unlocked, preferably by overpressing the furniture door into an overpressing position which lies behind the, preferably fully, countersunk position. Such locking devices are basically known in the state of art, however not in conjunction with the releasable locking of a furniture door within a cavity. The provision of such a locking device is, in particular, advantageous when the furniture door is to be safely stored within the cavity and the drive device exerts at least a driving force in a direction towards the position outside of the cavity.
When the furniture door includes at least two door wings which are connected to one another and which can assume a folded position and a spreaded position, it is beneficial when the arrangement includes a spreading device for spreading apart the at least two door wings from the folded position into the spreaded position. In this way, for example, a motion sequence can be realized so that the furniture door is located in its folded condition in the, preferably fully, countersunk position within the cavity. In this case, the drive device moves the furniture door out of the cavity and is then moved out of the cavity by the drive device and, subsequently, the spreading device becomes operative, so that an operator—in order to swivel the at least two door wings completely open, i.e. to move the two door wings in a position in which the door wings are located in a common plane or in planes being parallel to one another—needs to solely apply a small force to the spreaded door wings in the region of the bend, provided that the door wings are supported on a rail system or the like.
A beneficial movement sequence can be realized in such a way that the arrangement includes a damping device for dampening the movement of the furniture door immediately before reaching the, preferably fully, countersunk position within the cavity and/or a damping device for dampening the movement of the furniture door immediately before reaching the position outside of the cavity.
Ideally, the arrangement eventually includes an item of furniture, preferably a cupboard, having a furniture carcass, wherein the cavity is formed in the furniture carcass, preferably in an edge region, and that the item of furniture can be closed by way of the furniture door.
Protection is also sought for a drive device for an arrangement according to the invention.
Further advantages and details of the invention result with reference to the drawings, in which:
In particular,
The furniture door 1 is fastened to a base fastening element 18 by hinges 37, wherein the base fastening element 18, as shown in the following figures, is operatively connected to the drive device.
As shown in particular in the exploded view according to
The sequence according to
Upon the transition from the position which is shown in
After the local maximum of the control curve 3 has been overcome, the control element 15 moves towards the direction of a minimum which is reached when arriving the position shown in
Upon the transition starting from the position shown in
In the position according to
When reaching the fully countersunk position within the cavity 2 (see
In order to achieve a smooth arriving of the fully countersunk position within the cavity 2, the arrangement further includes a damping device 21 for dampening the movement of the furniture door 1, and the damping device 21 cooperates with a stop 39 being arranged on the base fastening element 18.
It is further to be noted that the ascending slope which the control element 15 encounters upon the transition according to
During the acceleration phase (see
When reaching the position according to
In
With reference to
On the side wall 35, guide elements 38 are arranged for the guidance of sliders 48, the guide elements 38 are connected to a base fastening element 27 on which a furniture door is pivotally arranged.
The substantial components of the drive device according to the second embodiment are shown in the exploded view according to
Pivotally arranged on the second end of the lever 51 is further a first end of a further lever 52, the second end of which is configured so as to be pivotally mounted to the furniture carcass 26.
It is generally to be noted that for the pivotable fastening of the levers 51 and 52 to the base fastening element 27 and the furniture carcass 26, respectively, wedge elements 49 and 50 are provided.
Upon a movement of the drive device, the relative position of the control curve 4 in relation to the lever 51 does not alter. On the contrast, the relative position of the control curve 4 in relation to the second lever 52 does vary.
Arranged on the second lever 52 is a housing 53 for accommodating an energy storage member in the form of a compression spring 14. Arranged within the housing 53, a sliding element 54 being acted upon by the energy storage member is displaceably arranged, the sliding element 54 has an end with a bearing 55 by which a control element 16 in the form of a roller is arranged. The control element 16 is pressurized by the force of the energy storage member against the control curve 4, more precisely on the upper side of the control curve 4 in the mounted position of the drive device.
As shown in the sequence of
As indicated above, a major difference, however, is that the control curve 4 can be adapted to different depths.
Number | Date | Country | Kind |
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A 853/2014 | Nov 2014 | AT | national |
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303998 | Dec 1972 | AT |
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43 08 196 | Oct 1993 | DE |
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Number | Date | Country | |
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20170241178 A1 | Aug 2017 | US |
Number | Date | Country | |
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Parent | PCT/AT2015/000141 | Nov 2015 | US |
Child | 15590661 | US |