Abstract:
It is known how to damp the rotation of rotating doors and similar access barriers by means of a discontinuous gear train in that preferably noncircular gears first convert the continuous door rotation into a discontinuous rotation on the output side and said discontinuous rotation is damped by means of a damping element. Known arrangements use gears having identical rolling curves for this purpose, which leads to an overshoot of the rotation and to intermittent damping action. This should be improved by the invention. Said aim is achieved by a damping unit that uses two noncircular gears having different rolling curves, of which one is egg shaped and the other in contrast is shortened and at the same time widened relative to the first. This results in a modified damping profile that enables more uniform motion of the revolving door. This arrangement also enables a motor drive, which can be operated at a constant rotational speed because of the arising sine- or cosine-shaped inverse curve of the gear train and which enables a clean end-position motion of the driven access barrier.
Abstract:
The invention relates to a drive device (1) for a deployment element (6) of a motor vehicle, in particular for a pivotable hinged window, which can be moved between an open position (Po) and a closed position (Ps) in a motorized manner. A spur gear transmission (10) driven by an electric motor comprises an output gear (14) having a coupling lever (18) for coupling a deployment lever (4) in a rotationally movable manner, a spur gear (13) that meshes with the output gear (14), and an intermediate gear (11) that is coaxial with the spur gear (13). The output gear (14) has outer teeth having two teeth sections (14a, 14b) of different axial tooth width (b 4 ). The deployment lever (4) that is coupled to the coupling lever (18) extends in a plane of symmetry (16) perpendicular to the rotational axes (12, 14) of the spur gear transmission (10).
Abstract:
The invention relates to a piece of furniture (4) with an actuating arm arrangement (2) for a flap (3) of the piece of furniture (4), wherein the actuating arm arrangement (2) comprises a lever arrangement (5) for moving the flap (3) and a main spring (7) that acts in the closing direction (SR) to hold the flap (3) closed. The piece of furniture also has an ejecting device (6) for ejecting the flap (3) in the opening direction (OR) by overpressing the flap (3) in the closing direction (SR) , said ejecting device lying on the piece of furniture (4) or on the actuating arm arrangement (2). At least one support spring (12) which acts in the opening direction (OR) and which is separate from the ejecting device (6) is provided for supporting the ejecting motion of the ejecting device (6). At least in an overpressed closed position (ÜS), the spring forces (A, U), which act on the flap (3) in the opening direction (OR) and which are provided by the ejecting device (6) and the support spring (12), are together greater than the closing force (Z), which acts on the flap (3) and which is provided by the main spring (7) acting in the closing direction (SR).
Abstract:
The invention relates to a plastic door or side-panel module (1) for a vehicle door or a vehicle side-panel, said module being used to separate a wet side from a dry side. According to the invention, said door or side panel (1) forms a carrier for a window-lifter mechanism and a toothed gear part (2) that is associated with the window-lifter mechanism is formed as one piece onto the door or side-panel module (1). The invention also relates to a window-lifter mechanism, which comprises a door or side-panel module (1) of this type, to a vehicle door comprising a corresponding door module (1) or a corresponding window-lifter mechanism and to a method for producing a door or side-panel module (1) of this type.
Abstract:
The invention relates to a furniture drive for driving a movable piece of furniture, comprising an electric motor, an actuator that can be moved back and forth between two end positions to apply a force on the piece of furniture to be driven, and a gearbox connected between the electric motor and actuator, the gearbox having at least one gear stage that is configured as an eccentric gearbox and comprising two gear wheels that mesh with each other, characterized in that one of the two gear wheels (7, 8) is firmly connected or coupled to the actuator (4) and the other gear wheel (7, 8) is coupled to the electric motor (3) such that the eccentric gearbox (6) has two limit positions, which correspond to the end positions of the actuator (4), and upon a rotation of the gear wheels (7, 8), starting from a first of the two limit positions to the other limit position, the gear ratio decreases steadily.
Abstract:
The invention relates to a furniture drive (1) for driving a movable piece of furniture (2), comprising an electric motor (3), an actuator (4) that can be moved back and forth between two end positions to apply a force on the piece of furniture (2) to be driven, and a gearbox (5) connected between the electric motor (3) and actuator (4), wherein the gearbox (5) has at least one gear stage configured as an eccentric gearbox (6) and comprising two gear wheels (7, 8) that mesh with each other, wherein one of the two gear wheels (7, 8) is firmly connected or coupled to the actuator (4) and the other gear wheel (7, 8) is coupled to the electric motor (3) such that the eccentric gearbox (6) has two limit positions, which correspond to the end positions of the actuator (4), and upon a rotation of the gear wheels (7, 8), starting from the limit positions, the gear ratio decreases over a defined rotational angle range.
Abstract:
Stellmechanismus (1) für einen schwenkbar gelagerten Stellarm (2), insbesondere zum Antrieb einer Klappe (3) eines Möbels, mit einer Federvorrichtung (5) mit einem federbelasteten Stellteil (13) und einem Übersetzungsmechanismus (7), der die Bewegung des Stellteiles (13) in eine Schwenkbewegung des Stellarmes (2) umsetzt, wobei der Übersetzungsmechanismus (7) mindestens eine Einstellvorrichtung (8) zum Verändern des Übersetzungsverhältnisses zwischen der Bewegung des Stellteiles (13) und der Schwenkbewegung des Stellarmes (2) aufweist, wobei der Stellmechanismus eine Dämpfvorrichtung (47) aufweist, die die Schließbewegung der Klappe (3) dämpft.