Abstract:
A drive assembly moves a vehicle closure panel from an open to a closed condition. The drive assembly has a housing and a motor mounted on the housing. A drum and gear assembly is rotatably mounted on the housing. The drum and gear assembly has a drum having a helical groove, a gear in driving engagement with the motor, and a spring biasing the drum in a winding direction relative to the gear. The drum and gear have a lost motion connection therebetween. A cable has an end connected to the closure panel and an opposite end connected to the drum about the helical groove in the winding direction. The drum rotates in the winding direction relative to the stationary gear as the closure panel is manually moved from the open to the closed condition with the spring maintaining a cable tension. The drum and gear rotate together in the winding direction upon energizing the motor effecting powered movement of the closure panel to the closed condition. The motor is afterwards energized in an opposite direction counter-rotating the gear relative to the drum back to a start position.
Abstract:
A door has a door leaf (10) which can be moved overhead between a closed and an open position and a weight-balancing device connected at one end to the door leaf and fixed at the other end. The weight-balancing device has one or several helical spring units space-savingly designed in such a way that the helical spring unit or units (16) are made of at least two driven helical springs loaded in parallel, of which the inner one has a helix with an outer diameter which is smaller than the inner diameter of the helix of the outer spring. The helical springs are coaxially arranged or nested one inside the other. Seen in the same longitudinal axial direction, one spring is wound clockwise and the adjacent spring is wound anti-clockwise, so that the helices of adjacent springs cross each other.
Abstract:
Die Erfindung betrifft eine Antriebsvorrichtung (12) zum Antreiben von Toren, insbesondere Garagentoren, Türen, Fenstern oder dergleichen zwischen einer Öffnungs- und einer Schließstellung bewegbaren Abschlüssen von Bauwerken oder Einfriedungen, mit einem Zugmittelgetriebe (10), das ein Zugmittel, insbesondere einen Zahngurt (16), zur Kraftübertragung und eine Zugmittelspannvorrichtung (26) zur Aufrechterhaltung einer Zugmittelspannung des Zugmittels (16) umfasst, wobei die Zugmittelspannvorrichtung (26) ein Kraftspeicherelement (56, 56) zum Liefern einer die Zugmittelspannung aufrechterhaltende Kraft aufweist. Zum Schaffen einer automatisch nachstellenden Zugmittelspannung innerhalb der Einsatzzeit der Antriebsvorrichtung (12) ohne Wartungsmaßnahmen wird vorgeschlagen, dass die Zugmittelspannvorrichtung (26) weiter eine Knarreneinrichtung oder dergleichen in einer Richtung sperrende und in die Gegenrichtung bewegbare Sperr- oder Freilaufeinrichtung (34) umfasst, die derart angeordnet und/oder ausgebildet ist, dass sie ein Spannen oder Weiterspannen des Zugmittels (16) durch Ziehen, insbesondere über an eine Spannrolle (28), an dem Zugmittel (16) in einer Spannrichtung (38) zulässt, in Gegenrichtung aber sperrt und dass das Kraftspeicherelement (56, 57) die Knarren-, Sperr- oder Freilaufeinrichtung (34) in die Spannrichtung (38) vorspannt.
Abstract:
A door has a door leaf (10) which may be moved overhead between an open and closed position and which is connected by means of a traction cable system to a weight-balancing device, driving motor or another similar power source. The traction cable system has at least one cable unit (21) secured at one end to the door leaf and fixed at the other end. In order to dispense with catching means and ensure a longer service life, at least one of the cable units (21) has two cables (21', 21'') loaded approximately in parallel and combined by their associated ends each to a building element. At least one of said building elements is designed as a cable tension compensating device.
Abstract:
The invention relates to a window winder with a closed cable-type, kinematic chain (6), in which all the traditional items for guiding, driving or tensing the cable have been eliminated, as have the supports and parts which are welded or riveted together. The unit is secured to the vehicle door by tightening three nuts which have been previously arranged on the corresponding bolts or screws fastened to it, thus making the assembly operation extremely easy, being extended to its use in a double rail (1,1') by simply duplicating its kinematic chain and adding the synchronizing element (17-19) between both. There is a rail or quide element (1) along which a drive slide (2) moves. The rail is equipped with a set of end supports (3,4) and the drive slide (2) is connected to a steel cable (6) which travels through these supports, with the ends of the cable connected to a tensioner drum (5) mounted on the rail.
Abstract:
A window regulator for operating a slidable window panel. The window regulator includes a drive drum (14) mounted for rotation in a wire winding direction to wind a first wire (W1) having one end mounted on a window panel carrier (C) and in a wire unwinding direction to unwind the first wire. A driven drum (15) is mounted for rotation in a wire winding direction to wind a second wire (W2) having one end mounted to the carrier and in a wire unwinding direction to unwind the second wire. The drive and driven drums (14, 15) come into connection with each other for rotation of the driven drum in unison with the drive drum only when the drive drum rotates in its wire unwinding direction. A device (31, 32, 17) is provided for making a connection between the drive and driven drums for rotation of the driven drum in unison with the drive drum in response to rotation of the drive drum in its wire winding direction.