The present invention relates to a furniture hinge including: a first fitting portion to be fixed to a furniture part or to a carrier movably-supported relative to a furniture carcass, a second fitting portion to be fixed to a movably-supported furniture part, and a hinge mechanism for hingedly connecting the first fitting portion and the second fitting portion to one another, in which the hinge mechanism having a least five, preferably at least seven, hinge axis members. The hinge mechanism includes at least one supporting lever directly connecting the first fitting portion and the second fitting portion to one another, and includes a control mechanism for controlling a motion sequence between the first fitting portion and the second fitting portion. The control mechanism is separate from the at least one supporting lever and has at least three control levers hingedly connected to one another.
Moreover, the invention relates to a guide system for guiding at least one movably-supported furniture part, the guide system comprising a furniture hinge of the type to be described.
Further, the invention concerns an item of furniture comprising a furniture carcass, at least one furniture part movably-supported relative to the furniture carcass, and a furniture hinge or a guide system for moving the at least one furniture part.
WO 2006/053364 A1 to the present applicant discloses a furniture hinge configured as a wide-angle hinge. For obtaining a maximum opening angle of approximately 170°, a relatively complex construction is required. With the aid of an intermediate portion serving as an extension of the hinge arm and being coupled to a movement of the hinge, it is possible that the furniture parts can not only be pivoted relative to one another, but can also enlarge their distance to one another upon pivoting.
U.S. Pat. No. 2,674,761 A discloses a hinge for refrigerator doors. The hinge includes a first fitting portion in the form of a first mounting plate and a second fitting portion in the form of a second mounting plate hingedly connected therewith. The hinge is configured as a multiple-joint hinge having seven hinge axes, and the hinge includes a supporting lever (reference number 8) directly connecting the fitting portions configured to be fixed to the furniture parts. The supporting lever has a reinforced configuration and is formed by a stack of eight plates bearing against one another. In addition to the supporting lever, further levers are provided for connecting the fitting portions to one another. A drawback is the fact that the construction requires a relatively large installation space, and that the hinge can only be used for applications in which the maximum opening angle of the door is limited to approximately 90°.
GB 758,932 A discloses a multiple-joint hinge having seven hinge axis members, and a supporting lever (reference number 3) directly connects a fitting portion configured to be fixed to a carcass and a hinge axis member arranged within a material thickness of the door.
WO 2007/148366 A1 discloses an item of furniture with two movable door wings which are hingedly connected to one another via a vertically extending axis. By a guide system, the door wings are movable relative to one another between a coplanar position and a parallel position. In the parallel position, the door wings can be stored within a lateral insertion compartment of the furniture carcass.
The coupling of the two fitting portions with furniture hinges having five or more hinge axes for enlarging a maximum opening angle of the furniture hinge is usually implemented by two or more levers which are hingedly connected to the first fitting portion as well as to the second fitting portion. Two of these levers are pivotally connected to one another by a hinge axis member separate from the fitting portions. When the furniture hinge is heavily loaded, the fitting portions sag relative to one another, whereby the friction is increased and the movement behavior of the movable furniture part is negatively affected.
It is an object of the present invention to propose a furniture hinge mentioned in the introductory part, thereby avoiding the above-discussed drawbacks.
According to the invention, a first control lever is connected to the first fitting portion via a hinge axis member, a second control lever is connected to the second fitting portion via a hinge axis member, and a third control lever connects the first control lever and the second control lever to one another.
According to the invention, a furniture hinge having five or more hinge axis members, at least one pivotable supporting lever is provided. The at least one supporting lever directly connects the first fitting portion and the second fitting portion of the furniture hinge in a hinged manner (that is to say without interposing a further hinge lever). In this way, the loading capacity of the furniture hinge can be increased, the stability can be improved and the maximum opening angle can be enlarged.
Besides an improved stiffness and a reduced sagging movement of the furniture hinge, a further advantage of the invention lies in the fact that the at least one supporting lever bears the main load of the furniture hinge. Therefore, a control mechanism, which is separate from the supporting lever for controlling a motion sequence between the first fitting portion and the second fitting portion, does practically not have to assume a supporting function. That control mechanism separate from the supporting lever can therefore be configured significantly more filigree, while maintaining the stability. The control levers of the control mechanism can be formed, for example, by a thinner material, whereby the furniture hinge can be configured more compact and can also be produced in a less expensive manner due to the filigree construction of the control mechanism.
According to the invention, the control mechanism for controlling a motion sequence between the first fitting portion and the second fitting portion includes at least three control levers hingedly connected to one another. The first control lever is connected to the first fitting portion via a hinge axis member, and a second control lever is connected to the second fitting portion via a hinge axis member. The third control lever connecting the first control lever and the second control lever to one another can be pivotally connected to the at least one supporting lever via a hinge axis member.
Preferably, all hinge axis members of the furniture hinge, in a mounted condition of the furniture hinge on the movable furniture part, preferably in all operating positions of the furniture hinge, are arranged outside a material thickness of the movable furniture part. This has the particular advantage that the second fitting portion can be simply fixed to the movable furniture part, without the necessity that laborious recesses or bores for receiving the second furniture part must be provided in the movable furniture part.
Further details and advantages of the invention result from the following description of figures.
The first fitting portion 14 includes a flat-shaped first bearing surface 14a configured to bear against the carrier 11 or against a furniture part (for example against the sidewall 13a or against the partition wall 13b), whereas the second fitting portion 15 is provided with a flat-shaped second bearing surface 15a. The two fitting portions 14, 15 are movably supported relative to one another between a first position, in which the bearing surfaces 14a, 15a are arranged substantially perpendicular to one another (
The furniture hinge 10 includes hinge mechanism 19 for hingedly connecting the first fitting portion 14 and the second fitting portion 15 to one another, the hinge mechanism 19 including at least five, preferably at least seven, hinge axis members (A, B, C, D, E, F, G). Moreover, the hinge mechanism 19 includes at least one supporting lever 16 directly connecting the first fitting portion 14 and the second fitting portion 15 to one another. The supporting lever 16 is thus directly connected to the first fitting portion 14 via a first hinge axis member (A) and directly connected to the second fitting portion 15 by a second hinge axis member (B), the supporting lever 16 bearing the major load of the furniture hinge 10. By a control mechanism 17 separate from the supporting lever 16, a motion sequence between the first fitting portion 14 and the second fitting portion 15 can be controlled. The control mechanism 17 includes at least three pivotable control levers 17a, 17b, 17c. A first control lever 17a is connected to the first fitting portion 14 via a third hinge axis member (C), and is connected to a third control lever 17c via a fourth hinge axis member (D). The third control lever 17c is pivotally supported on the supporting lever 16 via a seventh hinge axis member (G). A second control lever 17b is hingedly connected to the second fitting portion 15 via a fifth hinge axis member (E), and to the third control lever 17c via a sixth hinge axis (F).
It is preferably provided that all hinge axis members (A, B, C, D, E, F, G) of the furniture hinge 10, in a mounted condition of the furniture hinge 10 on the movable furniture part 3a, preferably in all operating positions of the furniture hinge 10, are arranged outside a material thickness of the movable furniture part 3a.
According to a further embodiment, it can be provided that at least one of the control levers 17a, 17b, 17c, preferably all control levers 17a, 17b, 17c, is or are at least partially arranged within the partial levers 16a, 16b of the supporting lever 16, and/or that at least one of the control levers 17a, 17b, 17c, preferably all control levers 17a, 17b, 17c, includes or include at least two partial levers which are spaced from one another along the hinge axis members (A, B, C, D, E, F, G).
The second fitting portion 15 includes at least one limb 22a, 22b protruding transversely, preferably at a right angle, from the bearing surface 15a of the second fitting portion 15. The at least one limb 22a, 22b is provided for supporting the supporting lever 16, in the present case for supporting the two partial levers 16a, 16b of the supporting lever 16 on the two hinge axis members (B, E).
This embodiment differs from the previous embodiment by a deviating position of the hinge axis members (A, B, C, D, E, F, G), by a deviating shape of the supporting lever 16 and by a deviating shape of the control levers 17a, 17b, 17c. The supporting lever 16 is thereby configured substantially straight, whereas the control lever 17a has an angled shape.
Number | Date | Country | Kind |
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A 50977/2018 | Nov 2018 | AT | national |
Number | Date | Country | |
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Parent | PCT/AT2019/060367 | Nov 2019 | US |
Child | 17318295 | US |