Abstract:
The invention pertains to a one- or two-leaf sliding, swinging or pocket door with electrical, pneumatic or hydraulic drive (10, 30), especially for vehicles. To avoid the risk of pinching due to built-in elements in the side closure region, the invention provides a spindle (12) to which the door leaf or leaves (1, 2) is/are connected by a nut (21, 32), with the spindle in the case of two-leaf doors being symmetrical to the center of the door and with the door drive producing either a rotational action in the spindle (12) or a linear action in the door (1). The spindle is fitted on one side with a free-wheel (23) and, preventing rotation of the fixed part of the free-wheel, an engaging and disengaging brake or coupling (24-28), thus avoiding a closing device in the side closure region.
Abstract:
Pneumatic or hydraulic drive for opening and closing doors, in which the rectilinear movement of a twin-action piston (5) actuated by a pressurized medium is converted into a rotary movement around a shaft (2) by means of a piston rod and a screw drive unit (3). A locking lever (10) mounted in a fixed position acts, under the effect of a spring (18), on a part (11) connected to the piston (5). The lever secures the piston in its end-of-travel position and is held in its open position against the force of another spring (15) by means of a hydraulic jack (14) actuated by a pressurized medium.
Abstract:
In a rotary drive, particularly for vehicle doors, the piston stroke of a piston-cylinder unit (5) is converted into a rotary motion by pairs of cylinders (14) which engage inclined slots (10, 11). The inclined slots are formed in cylinders (4, 6) coaxially arranged into each other, one of the cylinders being connected to the output shaft (7). The slots are axially orientated at their ends. The cover (2) of a pot-shaped housing (1) traversed by the output shaft (7) is provided with a collar (15) which projects outwardly and which surrounds the output shaft. The output shaft (7) is surrounded by a seal (17) of which the envelope (18) covers the outer side of the collar (15) and of which the edge (19) sealingly bears against the cover (2). The cover is provided on its side opposite to the collar with an axial groove (20) wherein the edge of the pot-shaped housing (1) is sealingly engaged.
Abstract:
The invention relates to a side sealing arrangement for sieve devices which has a grate comprising a plurality of grate rods (3, 4) which are alternately movable and immovable with respect to the side walls (2) and which are connected by flexible sieve components (6) which are secured to the grate rods, bridge the gaps between the latter and can be moved, that is tensioned and released, by the movable grate rods, the side sealing arrangement (8) which is made of flexible material being rigidly connected firstly to the sieve components (6) and secondly to side frame parts and comprising sealing sheets (8) which overlap one another in an imbricated manner. In order to increase the useful life of the sealing sheets and to improve the sealing properties, the invention proposes that, viewed in the sieving direction, each sealing sheet (8) extends between two grate rods (3) which are stationary relative to the side wall (2).
Abstract:
The invention relates to a tension wave strainer with a strainer lining secured to rods (3, 4) running across or along the direction of the strainer, wherein adjacent rods vibrate in relation to one another in such a way that the strainer lining is alternately relaxed and tensioned. According to the invention, a plastic fabric, e.g. polyamide (nylon), is used as is known for filtering liquids in process technology. In one embodiment, the tension wave strainer consists of two strainer frames (1, 2) and the rods (3, 4) are fitted alternately in the two frames (1, 2). To increase the vibration frequency of the rods (3, 4), the two frames (1, 2) are interconnected via springs (5) and the vibration exciter is an electromagnetic exciter (7) fitted between the two frames (1, 2).
Abstract:
The invention concerns a screening apparatus comprising two frame systems which are movable relative to one another, comprising grate bars assigned to each system, which grate bars of each frame system are alternately disposed and are connected by means of flexible screen elements which are fastened at the latter, bridge the distance between the bars, and are tensioned and relieved of tension by means of the relative movement of the two systems caused by means of an eccentric shaft which is supported exclusively at the two systems and rotated by means of a drive. This known construction is improved, according to the invention, in that the eccentric shaft is arranged at one end of the two systems (1, 7) and the latter are connected with one another at a distance from this end by means of an element (12) which ensures a substantially linear relative movement of the two systems relative to one another. The aforementioned distance preferably corresponds to the distance of the acceleration pole (PB) of the oscillating system (1, 7) from the eccentric shaft (3).
Abstract:
Die Erfindung betrifft eine Schwenkschiebetüre für Fahrzeuge mit a) zumindest einem Türblatt (1), b) einer Tragschiene (7), c) einem auf der Tragschiene (7) längsverschieblichen Schlitten (6), d) einem schwenkbaren Tragmechanismus (2,3,4,5), e) einer Führungsschiene (9) in der ein Führungszapfen (8), des Tragmechanismus (2,3,4,5) läuft und f) einem Linearantrieb (10, 21), g) der auf ein Angriffselement (15) am Schlitten (6) wirkt. Die Erfindung ist dadurch gekennzeichnet, h) daß das Angriffselement (15) bezüglich des Schlittens (6) zwischen zwei Positionen beweglich ist, die der ausgeschwenkten Lage des Türblattes (1) und der eingeschwenkten Lage des Türblattes (1) entsprechen, und i) daß das Angriffselement (15) mit einem Element des Tragmechanismus (2,3,4,5) so verbunden ist, daß dessen Positionswechsel das Ein- bzw. Ausschwenken des Türflügels (1) bewirkt oder zumindest wesentlich unterstützt.