Furniture drive for moving a furniture part that is movably mounted relative to a furniture body
A furniture drive includes a carrier and an actuating arm assembly arranged on the carrier and including a movably-supported actuating arm. The furniture drive also includes a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via an engagement location, a transmission mechanism for transmitting a force of the spring device to the actuating arm assembly, and an adjustment device including a rotatably-supported adjustment element. A relative position of the engagement location can be adjusted by a rotation of the adjustment element. The furniture drive further includes an overload safety device configured to couple the adjustment element with the transmission mechanism upon rotation of the adjustment element with torque below a predetermined torque, and to decouple the adjustment element from the transmission mechanism upon rotation of the adjustment element with torque above the predetermined torque.
1 . A furniture drive for moving a furniture part movably-supported relative to a furniture carcass, the furniture drive comprising:
a carrier configured to be fixed to a furniture carcass;
an actuating arm assembly arranged on the carrier, the actuating arm assembly including at least one movably-supported actuating arm for moving the movable furniture part;
a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via at least one engagement location;
a transmission connected to the spring device and to the actuating arm assembly, the transmission being configured to transmit a force of the spring device to the actuating arm assembly;
an adjustment device comprising a rotatably-supported adjustment element, wherein a position of the at least one engagement location relative to the actuating arm assembly can be adjusted by a rotation of the adjustment element; and
at least one overload safety device configured to rotationally couple the adjustment element with the transmission upon a rotation of the adjustment element with a torque below a predetermined torque, and configured to rotationally decouple the adjustment element from the transmission upon a rotation of the adjustment element with a torque above the predetermined torque,
wherein the at least one engagement location engages on an intermediate lever of the furniture drive, the intermediate lever being pivotably supported on the carrier, and
wherein the at least one movably-supported actuating arm includes a first actuating arm pivotable about a first hinge axis, and at least one second actuating arm pivotable about a second hinge axis, wherein the first hinge axis and the second hinge axis are mutually spaced apart from each other in a longitudinal direction of the carrier, the second hinge axis being arranged in a front region of the carrier relative to the first hinge axis, and the intermediate lever is directly connected to the at least one second actuating arm via a pushing lever.
2 . The furniture drive according to claim 1 , wherein the at least one overload safety device includes at least one rotatably supported shaft.
3 . The furniture drive according to claim 1 , wherein the at least one overload safety device:
includes at least one tooth arrangement arranged on the adjustment element; or
includes at least one spring element having an aperture, and the at least one spring element and the adjustment element are arranged relative to each other such that the adjustment element can be accessed via the aperture of the at least one spring element; or
includes at least one bearing device, and the adjustment element or a rotatable shaft is rotationally arranged in or on the at least one bearing device.
4 . The furniture drive according to claim 1 , further comprising at least one threaded portion having a longitudinal direction, wherein the engagement location of the spring device is adjustable along the at least one threaded portion by a rotation of the adjustment element about a rotational axis.
5 . The furniture drive according to claim 4 , wherein the rotational axis of the adjustment element and the longitudinal axis of the at least one threaded portion form an angle between each other, and wherein the angle is varied upon a movement of the actuating arm assembly.
6 . The furniture drive according to claim 4 , further comprising at least one angularly-movable coupling device for transmitting a rotational movement of the adjustment element into a rotational movement of the at least one threaded portion.
7 . The furniture drive according to claim 6 , wherein the at least one angularly-movable coupling device includes at least one elastic element.
8 . The furniture drive according to claim 7 , wherein the at least one elastic element comprises a folding bellows, a rubber form element, a coil-spring coupling, at least one gear, or a joint.
9 . The furniture drive according to claim 8 , wherein the at least one elastic element comprises the at least one gear, and the at least one gear includes a bevel gear transmission, or
the at least one elastic element comprises the joint, and the joint is a cross-joint or a cardan joint.
10 . The furniture drive according to claim 1 , wherein the adjustment element of the adjustment device, in a mounted condition of the furniture drive, faces towards the movable furniture part and is arranged in a front region of the carrier.
11 . The furniture drive according to claim 1 , wherein the spring device is supported with a first end region on the carrier, and is supported with a second end region on the engagement location.
12 . The furniture drive according to claim 1 , wherein the spring device includes at least one helical spring.
13 . The furniture drive according to claim 12 , wherein the at least one helical spring includes at least one compression spring.
14 . The furniture drive according to claim 1 , wherein the carrier, in a mounted condition on a furniture panel, is configured to be received at least partially within the furniture panel.
15 . The furniture drive according to claim 1 , wherein the carrier is substantially rectangular.
16 . The furniture drive according to claim 15 , wherein a ratio of a length of the carrier to a height of the carrier is larger than 1 to 0.7.
17 . The furniture drive according to claim 16 , wherein the ratio of the length of the carrier to the height of the carrier is larger than 1 to 0.5.
18 . The furniture drive according to claim 1 , wherein the adjustment element of the adjustment device includes a receiving device for a tool.
19 . An item of furniture comprising:
a furniture carcass;
a furniture part movably-supported relative to the furniture carcass; and
the furniture drive according to claim 1 for moving the movable furniture part.
20 . The item of furniture according to claim 19 , wherein the furniture carcass includes a furniture panel for fixing the carrier, and wherein the carrier is at least partially received within a recess of the furniture panel.
21 . A furniture drive for moving a furniture part movably-supported relative to a furniture carcass, the furniture drive comprising:
a carrier configured to be fixed to a furniture carcass;
an actuating arm assembly arranged on the carrier, the actuating arm assembly including at least one movably-supported actuating arm for moving the movable furniture part;
a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via at least one engagement location;
a transmission connected to the spring device and to the actuating arm assembly, the transmission being configured to transmit a force of the spring device to the actuating arm assembly;
an adjustment device comprising a rotatably-supported adjustment element, wherein a position of the at least one engagement location relative to the actuating arm assembly can be adjusted by a rotation of the adjustment element; and
at least one overload safety device configured to rotationally couple the adjustment element with the transmission upon a rotation of the adjustment element with a torque below a predetermined torque, and configured to rotationally decouple the adjustment element from the transmission upon a rotation of the adjustment element with a torque above the predetermined torque,
wherein the at least one overload safety device includes at least one rotatably supported shaft, and
wherein;
the overload safety device includes a spring element, wherein the at least one rotatably supported shaft and the adjustment element can be pressed against each other by a force of the spring element; or
the at least one rotatably supported shaft is configured to be driven by the adjustment element, the adjustment element being coupled to the at least one rotatably supported shaft upon a rotation of the adjustment element with a torque below the predetermined torque, and being decoupled from the at least one rotatably supported shaft upon a rotation of the adjustment element with a torque above the predetermined torque; or
the at least one rotatably supported shaft has a longitudinal direction and is displaceable in the longitudinal direction against a force of a spring element upon a rotation of the adjustment element with a torque above the predetermined torque; or
the at least one rotatably supported shaft includes a first tooth arrangement configured to be engaged with a second tooth arrangement of the adjustment element.
22 . A furniture drive for moving a furniture part movably-supported relative to a furniture carcass, the furniture drive comprising:
a carrier configured to be fixed to a furniture carcass;
an actuating arm assembly arranged on the carrier, the actuating arm assembly including one or more movably-supported actuating arms for moving the movable furniture part;
a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via at least one engagement location;
a transmission connected to the spring device and to the actuating arm assembly, the transmission being configured to transmit a force of the spring device to the actuating arm assembly;
an adjustment device comprising a rotatably-supported adjustment element, wherein a position of the at least one engagement location relative to the actuating arm assembly can be adjusted by a rotation of the adjustment element; and
at least one overload safety device configured to rotationally couple the adjustment element with the transmission upon a rotation of the adjustment element with a torque below a predetermined torque, and configured to rotationally decouple the adjustment element from the transmission upon a rotation of the adjustment element with a torque above the predetermined torque,
wherein the carrier has a front-side opening through which at least one actuating arm of the one or more movably-supported actuating arms can be guided, and wherein the adjustment element is arranged in a front-end region of the carrier such that the adjustment element can be actuated from the front of the carrier with a tool inserted into the front-side opening.
23 . A furniture drive for moving a furniture part movably-supported relative to a furniture carcass, the furniture drive comprising:
a carrier configured to be fixed to a furniture carcass;
an actuating arm assembly arranged on the carrier, the actuating arm assembly including at least one movably-supported actuating arm for moving the movable furniture part;
a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via at least one engagement location;
a transmission connected to the spring device and to the actuating arm assembly, the transmission being configured to transmit a force of the spring device to the actuating arm assembly;
an adjustment device comprising a rotatably-supported adjustment element, wherein a position of the at least one engagement location relative to the actuating arm assembly can be adjusted by a rotation of the adjustment element; and
at least one overload safety device configured to rotationally couple the adjustment element with the transmission upon a rotation of the adjustment element with a torque below a predetermined torque, and configured to rotationally decouple the adjustment element from the transmission upon a rotation of the adjustment element with a torque above the predetermined torque,
wherein the at least one overload safety device includes at least one rotatably supported shaft, and wherein a rotational axis of the adjustment element and a longitudinal direction of the at least one rotatably supported shaft extend coaxially to each other.
24 . A furniture drive for moving a furniture part movably-supported relative to a furniture carcass, the furniture drive comprising:
a carrier configured to be fixed to a furniture carcass;
an actuating arm assembly arranged on the carrier, the actuating arm assembly including at least one movably-supported actuating arm for moving the movable furniture part;
a spring device for applying a force to the actuating arm assembly, the spring device being connected to the actuating arm assembly via at least one engagement location;
a transmission connected to the spring device and to the actuating arm assembly, the transmission being configured to transmit a force of the spring device to the actuating arm assembly;
an adjustment device comprising a rotatably-supported adjustment element, wherein a position of the at least one engagement location relative to the actuating arm assembly can be adjusted by a rotation of the adjustment element;
at least one overload safety device configured to rotationally couple the adjustment element with the transmission upon a rotation of the adjustment element with a torque below a predetermined torque, and configured to rotationally decouple the adjustment element from the transmission upon a rotation of the adjustment element with a torque above the predetermined torque; and
at least one threaded portion having a longitudinal direction, wherein the engagement location of the spring device is adjustable along the at least one threaded portion by a rotation of the adjustment element about a rotational axis,
wherein the rotational axis of the adjustment element and a longitudinal axis of the at least one threaded portion form an angle between each other, and wherein the angle is varied upon a movement of the actuating arm assembly.