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, wherein the gearbox has at least one gear stage configured as an eccentric gearbox and comprising two gear wheels that mesh with each other, wherein one of the two gear wheels is firmly connected or coupled to the actuator and the other gear wheel is coupled to the electric motor such that the eccentric gearbox has two limit positions, which correspond to the end positions of the actuator, and upon a rotation of the gear wheels, starting from the limit positions, the gear ratio decreases over a deformed rotational angle range.
Abstract:
A drive for a movable furniture element has an actuating element for moving the furniture element and a motor for driving the actuating element. The actuating element and the furniture element may at times be moved independently of one another, and a position measurement system is provided for determining both the position of the actuating element and the position of the furniture element.
Abstract:
A tailgate lift assistor that provides for a reduced force required to rotate or pivot a tailgate of a pickup truck or the like upwardly from a generally horizontal open position to a generally vertical closed position and in one embodiment the lift assistor is combined with a dampening mechanism that dampens the opening of the tailgate.
Abstract:
In order to reduce a number of parts and required costs, and to improve operability during assembly and maintenance, the automatic original cover closer comprises hinge portions having a supporting member which supports the original cover to be opened and closed with regard to a main body of an office equipment and a driving portion automatically driving the supporting member of the hinge portions. The automatic original cover closer is characterized in that the supporting member is rotatably supported via a rotation shaft on a mounting member attached to the main body, that the driving portion comprises a driving motor and a driving force transmitting mechanism for transmitting a rotation drive force of the driving motor to the rotation shaft, and that the rotation shaft is adjusted so that its rotation drive force can be transmitted to the supporting member via a shaft engaging members fixedly attached thereto.
Abstract:
The present invention provides a self-closing hinge suitable for use in a variety of applications where it is desirable to provide for automatic closing of a hinged member in a delayed or slow fashion. The invention includes a generally cylindrical outer casing or housing that partially encloses a rotatable shaft that may be secured to a hinged member to effect the rotation thereof. The shaft is disposed within a recess in a cylindrical coupler that is engaged by the shaft during rotation in a first direction—generally an “open” rotational direction—and that engages the shaft to rotate it in a second direction—generally a “closed” rotational direction. The coupler is secured to a torsional spring that acts against the open rotation of the shaft and thereby forces the coupler to rotate in a closed direction. Additionally, a rotatable inner casing, which is generally cylindrical, may be disposed within the outer casing in close proximity thereto, such that a high viscosity fluid may be disposed therebetween.
Abstract:
A vehicle tailgate movement assist mechanism including a tailgate configured to rotate between opened and closed positions, and a tailgate lever arm fixedly connected to a bottom area of the tailgate. A drive lever may be pivotally connected to the lever arm and to a bell crank at opposite ends thereof. The bell crank may be connected to a shaft of a rotary gear pivotally anchored to a vehicle body. A rotary damper may be anchored to the vehicle body and include a damper gear connected to a shaft thereof. The damper gear may be rotatably meshed with the rotary gear. Rotation of the tailgate from a closed to an opened position simultaneously rotates the lever arm to move the drive lever and the bell crank to thereby rotate the rotary gear which rotates the damper gear to actuate the rotary damper to reduce an opening speed of the tailgate.
Abstract:
An actuating device for a movable component includes a reversible motorized drive for driving the movable component from a normal position into an open position, the movable component being uncouplable from the reversible motorized drive in its open position. The actuating device includes a driving element movably drivable by the reversible motorized drive and engages in a crank recess and extending along the path of motion of the movable component. A length of the crank recess corresponds at least to a path of motion of the driving element between its normal position and its open position or partially open position. After adjustably driving the movable component into its open position, the driving element may be returned by the reversible motorized drive into the normal position.
Abstract:
A method and a control apparatus for controlling the movement of a sliding door in its end closing area by always permitting movement of the door leaf in a closing direction by providing a free wheel, only permitting movement of the door leaf in an opening direction when a brake, coupling or other fixation for a fixed part of the free wheel remote from the door leaf is disengaged, determining door position, deactivating any present safety devices against pinching in the predetermined end closing area, reducing a current supply of the door drive and thus a closing force acting on the door leaf to a lower value as long as the door leaf is within the end closing area, and disengaging the brake, coupling or other fixation which acts on the part of the free wheel remote from the door leaf.
Abstract:
A door actuator, in particular the door lock, for rail vehicles, comprising a spindle drive, the spindle of which is connected to a freewheel, permitting rotation in the direction corresponding to the closing of the door and preventing rotation in the direction corresponding to the opening of the door. The part of the freewheel furthest from the spindle is mounted such as to rotate, but with a releasable fixing relative to a release device, achieved by a coupling which may be released by solenoid. The brake, clutch or similar coupling is or may be fixed in the open position and a closing magnet is provided. In a first version, the coupling, is operated by a bar, and between the released position of the bar and the locked position of the bar there is a dead-point. In a second version, the open position is maintained by a permanent magnet.
Abstract:
The clutch includes a drive disk, a follower disk and a brake disk. When current flows, the follower disk is connected with the drive disk to transmit a power from a driving unit to a door-opening/closing mechanism. When no current flows, the follower disk is separated from the drive disk to cut off the power transmission from the driving unit to the door-opening/closing mechanism. In a state that the drive disk and the follower disk are separated from each other, the brake disk is connected to the follower disk to brake the door-opening/closing mechanism in the opening direction of the door, and to allow the door-opening/closing mechanism to move in the closing direction of the door.