Abstract:
Die Erfindung betrifft eine Antriebsvorrichtung (1, 1`) für einen zwischen einer geöffneten und einer geschlossenen Stellung bewegbaren Türflügel (23) eines Personenbeförderungsfahrzeugs. Sie weist eine Antriebseinheit (30) mit wenigstens einem Motor, um die Bewegung des Türflügels (23) zu bewirken, Mittel zur Hemmung oder Blockade der Antriebseinheit (30), wobei der Türflügel (23) wenigstens eingeschränkt relativ zu der durch die Antriebseinheit (30) vorgegebenen Stellung bewegbar gelagert ist, um ihn aus der durch die Antriebseinheit (30) vorgegebenen Stellung händisch bewegen zu können und ferner Mittel (11, 12, 13, 18) zur Erzeugung einer der Relativverstellung des Türflügels (23) entgegen gerichteten Rückstellkraft auf.
Abstract:
It refers to a door closing device (10) for an automatic closing of a door leaf (B) coupled with a floor and/or a doorpost (S) so as to swing. The door closing device (10) comprises a fixed unit (12) that is fixed on the floor and/or the doorpost (S), a translating unit (14) and a rotating unit (16) on which the door leaf (B) is fixed. The coupling of the three units (12, 14, 16) and the presence of elastic means (38) are such that, when the rotating unit (16) rotates in a first sense of rotation, the translating unit (14) is caused to translate in a direction and such that, when the translating unit (14) translates in an opposite direction, the rotating unit (16) is caused to rotate in an opposite sense of rotation.
Abstract:
Die Erfindung betrifft ein Antriebssystem (1) eines Stellelementes (10) eines Kraftfahrzeugs sowie ein Verfahren zur Steuerung des Antriebssystems (1), bei dem ein Elektromotor (3) über ein Getriebe (17,18) ein Antriebselement (21) und ein mit diesem über eine Drehfeder (23) gekoppeltes Abtriebselement (22) um eine gemeinsame Drehachse (20) antreibt. Die Drehfeder(23) überträgt in beiden Drehrichtungen (R 1 ,R 2 ) ein auf das Antriebselement (21) wirkendes Drehmoment an das Abtriebselement (22) und blockiert ein abtriebsseitiges Drehmoment. Eine Steuerelektronik (25) ist dazu eingerichtet, einen anhand der Motordrehzahl (n) und/oder des Motorstroms (I M ) sowie der Drehrichtung (R 1 ,R 2 ) ermittelten aktuellen Positionswert des Stellelementes (10) zu speichern, wenn das in eine der Drehrichtungen (R 1 ,R 2 ) angetriebene Antriebselement (21) im Anschluss an eine Verstellbewegung gestoppt wird. Bei erneuter Verstellbewegung des Stellelementes (10) in Gleich- oder Gegenrichtung werden eine Überhöhung der Motordrehzahl (n) bzw. ein Anstieg des Motorstrom (I M ) bis zur oder im Moment einer kraftschlüssigen Kopplung des Antriebselementes (21) über die Drehfeder(23) mit dem Abtriebselement (22) erfasst und daraus ein Korrekturwert zur Kompensation einer Positionsverschiebung des Antriebselements (21) gegenüber dem gespeicherten Positionswert ermittelt.
Abstract:
In one aspect, the invention is directed to a motor/drive arrangement for a window regulator in a vehicle, whereby the motor/drive arrangement includes a motor and a gearbox. The gearbox includes a plurality of gears including a final gear, and further includes a back-drive prevention mechanism that is configured to transfer rotational power from the final gear to a gearbox output shaft, and that is also configured to prevent the transfer of rotational power from the gearbox output shaft to the final gear. As a result, neither the motor nor the gear teeth of any of the gears are required to resist back-driving forces. As a result a potential source of failure is eliminated. In some embodiments, all the gears in the gearbox may be high efficiency gears. In particular the first gear in the gearbox may be a high efficiency gear, such as a worm with a relatively high efficiency tooth profile and lead angle. By using a high efficiency gear, the motor used to drive the window regulator may be smaller, may consume less power, may be lighter, and/or may be less expensive.
Abstract:
Die Erfindung betrifft eine Lastdrehmomentsperre (1) zum Sperren eines von einem Abtriebselement (13) eingeleiteten Drehmoments, umfassend ein antreibbares Antriebselement (5), ein Abtriebselement (13), und Mittel zum Abstützen eines von dem Abtriebselement (13) eingeleiteten Drehmoments an einem feststehenden Bauteil. Erfindungsgemäß ist vorgesehen, dass die Mittel ein axial verstellbares Kupplungselement (12) umfassen, das zwischen einer Übertragungsposition, in der des das Antriebselement (5) drehmomentübertragend mit dem Abtriebselement (13) gekoppelt ist und einer Sperrposition verstellbar ist, in der das Kupplungselement (12) das abtriebsseitig eingeleitete Drehmoment an dem feststehenden Bauteil abstützt. Ferner betrifft die Erfindung einen Elektromotor sowie ein Getriebe, jeweils mit einer Lastdrehmomentsperre (1).
Abstract:
An access control apparatus for an access gate. The access gate typically has a rotator that is configured to rotate around a rotator axis at a first variable speed in a forward direction. The access control apparatus may include a transmission that typically has an input element that is operatively connected to the rotator. The input element is generally configured to rotate at an input speed that is proportional to the first variable speed. The transmission typically also has an output element that has an output speed that is higher than the input speed. The input element and the output element may rotate around a common transmission axis. A retardation mechanism may be employed. The retardation mechanism is typically configured to rotate around a retardation mechanism axis. Generally the retardation mechanism is operatively connected to the output element of the transmission and is configured to retard motion of the access gate in the forward direction when the first variable speed is above a control-limit speed. In many embodiments the transmission axis and the retardation mechanism axis are substantially co-axial. Some embodiments include a freewheel/catch mechanism that has an input connection that is operatively connected to the rotator. The input connection may be configured to engage an output connection when the rotator is rotated at the first variable speed in a forward direction and configured for substantially unrestricted rotation when the rotator is rotated in a reverse direction opposite the forward direction. The input element of the transmission is typically operatively connected to the output connection of the freewheel/catch mechanism.
Abstract:
Disclosed is a piece of furniture comprising at least one drawer (1) which is movable along an extensible guide. At least one electric drive unit (11) is provided for moving the drawer (1). Said at least one drive unit (11) is integrated into a sidewall (5) of the drawer (1) while a driving means (13, 16) penetrates the sidewall (5) at least in part, thus making it possible to create an automatic drive unit while keeping the design compact.
Abstract:
Self-closing pivot hinge The self-closing pivot hinge according to the invention comprises a first part attachable to a door/window and a second part attachable to a door/window frame. The first and second parts are rotatable with respect to each other about a rotation axis from a closed position to at least a first open position. The hinge further comprises a spring, functioning as a torsion spring, mounted along the rotation axis and providing a self-closing function to the pivot hinge. A pre-tensioning member is provided for engaging one end of the spring and applying a pre-tension to it. An adjusting mechanism enables adjustment of the position of the pre- tensioning member and hence the pre-tension applied to the spring.
Abstract:
A variable rate friction damper has variable torque dampening resistance without the use of oil. The variable rate friction damper uses interference friction to generate variable torque dampening resistance depending on the rotational position of the damper.
Abstract:
A piston device for the controlled rotatable movement of a closing element (D) anchored to a stationary support structure (W) including a tubular body (10) removably insertable into at least one seat (S) of a hinge device (H), an actuating head (20) external to the tubular body (10), a plunger member (30) slidably movable unitary with the actuating head (20) between a retracted end position and an extended end position, elastic contrast means (50) acting on said plunger member (30) for the returning thereof from the retracted end position to the extended end position and a working fluid acting on the plunger member (30) to hydraulically counteract the action thereof. A hinge device in which the piston device is removably insertable.