Abstract:
A door opening and closing device has a rotational mechanism configured to switch a door between a closed position and an open position relative to a base member. The door opening and closing device includes a latch mechanism for latching the door in the closed position on the base member. The latch mechanism includes a latch device attached to the base member, a case disposed above the latch device, a slider slidably situated in the case above the latch device, and a latching member pivotally supported by the case and including a base end slidably connected with the slider and a tip configured to engage a portion of the door. When the door is moved to the closed position, the slider is moved by the door and is engaged with the latch device while the latching member is pivoted to engage the door.
Abstract:
A powerless helical locking mechanism for door includes a screw (1) with variable lead angle connected with a power (11) and a self-adaptive nut (19) connected to the door (10), in which, the helical flux of the screw is divided into three segments: one segment is a working segment with the helical lead angle greater than the friction angle, one segment is a closing segment with the helical lead angle smaller than the friction angle, and transition segment between the two segments, the power (11) actuates the screw to corotation and reverse, the self-adaptive nut (19) consists a spindle sleeve (7), a wrist (5) and other part, the nut and the screw is assembled to a helical kinematic-pair, wherein the wrist is dipped into the helical flutes of the screw and line contacts with the flute making the wrist and random helical flute of helical lead angle form mating helical pair to translate power and movement.
Abstract:
A folding façade or folding awning arrangement includes at least two façade or awning elements, wherein a first façade or awning element is fixed on a building so that it can pivot about an axis, and wherein a second façade or awning element is pivotally held about a second displaceable axis and can be displaced along guides by means of a drive member, and wherein further a first collapsing edge of the first façade or awning element is pivotally connected to a second collapsing edge of the second façade and awning element to form a collapsing joint and can be moved in a manner released from the guides, collapsing transversely to the façade. The arrangement further includes at least one collapsible/fold-out and/or locking means. Safe operation is achieved in that at least one pivoting actuating element is provided in the form of a collapsing/fold-out, pulling/drawing, and/or locking means.
Abstract:
A spindle drive for a movable component includes a threaded spindle which is rotatable about a spindle axis; a spindle nut which engages the threaded spindle; and a transmission element which can be connected to the movable component, the transmission element being fixed against rotation about the spindle axis and being axially drivable by rotation of the spindle nut. An intermediate element, which is fixed against rotation relative to the spindle nut, extends axially with respect to the threaded spindle and is rotatable relative to the threaded spindle. A drive is connected to rotate one of the intermediate element and the threaded spindle; and the other of the intermediate element and the threaded spindle can be fixed against rotation.
Abstract:
An adjusting system of a motor vehicle for the adjustment of a closing part is disclosed. The system includesa first and second casing extending oblong in a length-wise direction. The second casing has a smaller cross section than the first casing and is arranged within the first casing to be adjustable in a length-wise direction. A spindle for the relative adjustment of a first casing to the second casing is included and arranged within either or both of the first and second casings.The system also includes an electromotor and a transmission connected with either or both of the spindle and second casing. In addition, at least one spring is arranged within either or both of the first and second casings and operates length-wise, such that one of the casings is attached on the side of the motor vehicle body and another of the casings is attached to the closing side.
Abstract:
A door opening and closing device having a rotational mechanism configured to switch a door between a closed position and an open position relative to a base member. The rotational mechanism has a supporting arm integral with the door; a sector gear portion provided on the arm; a rotating gear disposed on the arm at essentially a center of the arc of the sector gear; a first rack portion on the base member and configured to engage the sector gear; and a second rack portion on the base member. The second rack is essentially parallel to the first rack portion and separated by predetermined distance therefrom, the second rack being configured to engage the rotating gear.
Abstract:
A cover opening and closing mechanism switches a cover body on a corresponding surface of a main body between a closed position for closing the corresponding surface and an open position for opening the same. The cover opening and closing mechanism includes a forcing device for always urging the cover body toward the closed position; a push button; a switching device having a cam facing the button, an acceleration gear engaging a gear part provided on the cover body, and a striker; and a latch device for locking the striker in the open position of the cover body and releasing the lock when the button is pushed. The switching device switches the cover body from the closed position to the open position against a force of the forcing device.
Abstract:
In an opening-closing mechanism of a door member for shifting the door member from a closed position for closing an opening portion of a base member to an open position and vice versa, the door member includes a pair of arm portions. Each arm portion includes a circular arc shape gear and a rotary gear disposed in a center of the circular arc of the gear. The base member includes a first fixed gear portion with internal teeth engaging the circular arc shape gear portion, and a second fixed gear portion disposed inside the first fixed gear engaging the rotary gear. The arm portion is held to move vertically through engagements between the first fixed gear portion and the circular arc shape gear portion and between the rotary gear and the second fixed gear portion, so that the door member is shifted along a path corresponding to the first fixed gear portion.
Abstract:
A pivot-action damper which for example dampens the impact effect of the closing movement of doors, furniture doors or flaps displays excellent braking force or damping force, even over small angular regions as a result of an outer cylindrical body which encompasses an inner body which is pivotable in relation to said outer cylindrical body. Between the two bodies there are two chambers, separated from each other by a gap or a throttle position, with said chambers containing a liquid. This liquid is displaced from one chamber to the other as a result of the rotation of the two bodies in relation to each other.
Abstract:
The present invention relates to automatic door assemblies and swing operators therefor. One aspect of the invention provides a swing door operator that has an opening in the housing thereof for easy access to the operator motor. Another aspect of the invention provides a method for servicing a door operator. Another aspect of the invention provides a door operator with a spring force adjusting member that moves in the generally longitudinal direction of the spring structure. Another aspect of the invention provides a method for adjusting the spring force of the spring structure in a door operator. Another aspect of the invention provides a swing door operator with an adjustable stop member.