Abstract: An air guiding device (10) for a motor vehicle, with a spoiler lip (12) extending in the transverse direction (FQ) of the vehicle, and with a pneumatic actuating device (28) for the spoiler lip (12), with the aid of which actuating device the spoiler lip (12) is shiftable between a retracted rest position and an extended position, wherein the pneumatic actuating device (28) has a pneumatic actuator (30) which is fillable with or is emptiable of air, wherein the pneumatic actuator (30) is divided in the transverse direction (FQ) of the vehicle into a plurality of zones (40, 42, 44), wherein the pneumatic actuator (30) has a plurality of air-fillable chambers (46, 48, 50) in each zone (40, 42, 44), and wherein the chambers (46, 48, 50) are fillable with or are emptiable of air in a manner individual to the zones.

Abstract: An air guiding device (10) for a motor vehicle has a spoiler lip (12) mountable on a front part (8) of the motor vehicle via an adapter (32) and extends in the transverse direction (FQ) of the vehicle. A pneumatic actuating device (28) shifts the spoiler lip (12) between a retracted rest position and an extended position. A flexurally elastic rod (24) is guided in a guide (26) near the free end of the spoiler lip (12). The spoiler lip (12) is mounted on the adapter (32) so that the spoiler lip (12), even in the retracted rest position, is under a prestress that opposes the shifting of the spoiler lip (12) out of the rest position into an extended position.

Abstract: The invention relates to a method for mutually adhering molded articles of at least partially vulcanized rubber polymers. The method comprises at least the steps of providing a rubber composition which comprises a peroxide with an initiating temperature lower than the vulcanization temperature of at least one of the rubber polymers; arranging an adhesive layer of the rubber composition on the surface of the molded articles which is to be adhered; bringing the surfaces for adhering together under pressure; and vulcanizing at least the adhesive layer at an increased temperature.

Abstract: An air guiding device for a motor vehicle has a spoiler lip (12) extending in the transverse direction of the vehicle and an actuating device (28) for moving the spoiler lip (12) between a retracted rest position and an extended maximum position. The spoiler lip (12) is mounted on an adaptor (34) and the adaptor (34) is connected to a fastening device (38). The air guiding device is connectable via the adaptor (34) and the fastening device (38) to a front panel (40) of the motor vehicle.

Abstract: An air guiding device (10) for a motor vehicle, with a spoiler lip (12) extending in the transverse direction (FQ) of the vehicle, and with a pneumatic actuating device (28) for the spoiler lip (12), with the aid of which actuating device the spoiler lip (12) is shiftable between a retracted rest position and an extended position, wherein the pneumatic actuating device (28) has a pneumatic actuator (30) which is fillable with or is emptiable of air, wherein the pneumatic actuator (30) is divided in the transverse direction (FQ) of the vehicle into a plurality of zones (40, 42, 44), wherein the pneumatic actuator (30) has a plurality of air-fillable chambers (46, 48, 50) in each zone (40, 42, 44), and wherein the chambers (46, 48, 50) are fillable with or are emptiable of air in a manner individual to the zones.

Abstract: An air guiding device (10) for a motor vehicle has a spoiler lip (12) mountable on a front part (8) of the motor vehicle via an adapter (32) and extends in the transverse direction (FQ) of the vehicle. A pneumatic actuating device (28) shifts the spoiler lip (12) between a retracted rest position and an extended position. A flexurally elastic rod (24) is guided in a guide (26) near the free end of the spoiler lip (12). The spoiler lip (12) is mounted on the adapter (32) so that the spoiler lip (12), even in the retracted rest position, is under a prestress that opposes the shifting of the spoiler lip (12) out of the rest position into an extended position.

Abstract: The invention relates to a method for mutually adhering a first moulded article of an at least partially vulcanized rubber polymer and a second moulded article of a polymer. The method comprises at least the steps of providing a first moulded article of a rubber polymer which comprises a compound containing carboxylic acid anhydride; providing a second moulded article of a polymer; providing an adhesive composition comprising at least a polyisocyanate, a polyol and a catalyst; arranging an adhesive layer of the adhesive composition on the surface for adhesion of at least one moulded article; bringing the surfaces for adhesion together under pressure; and polymerizing at least the adhesive layer at a suitable temperature.

Abstract: A motor vehicle front spoiler has a spoiler lip (11) extending in the region of a front part of the motor vehicle over the entire width or part of the width of the front part. An actuating element (12) enables the spoiler lip (11) to be shifted between an extended operating position, in which the spoiler lip (11) forms a downwardly directed extension of the front part and acts as an aerodynamic air-guiding device, and a retracted inoperative position, in which the spoiler lip (11) is directed to the rear and essentially has no aerodynamic air-guiding effect. A portion (13) of the spoiler lip (11) that is at the bottom in the operating position of the spoiler lip (11) and is in the vicinity of the roadway can be replaced.

Abstract: An air guiding device for a motor vehicle has a spoiler lip (12) extending in the transverse direction of the vehicle and an actuating device (28) for moving the spoiler lip (12) between a retracted rest position and an extended maximum position. The spoiler lip (12) is mounted on an adaptor (34) and the adaptor (34) is connected to a fastening device (38). The air guiding device is connectable via the adaptor (34) and the fastening device (38) to a front panel (40) of the motor vehicle.

Abstract: An air guiding device for a motor vehicle has a spoiler lip (12) extending in the transverse direction (FQ) of the vehicle, and an actuating device (34) for the spoiler lip (12) in such a manner that the spoiler lip (12) is movable between a retracted rest position (RS) and an extended maximum position (MS). The spoiler lip (12) has, in the region of the longitudinal side (22) thereof which is directed toward a roadway, a flexurally elastic rod (24) that is guided movably in a guide device (26). A displacement measuring device (40) detects a position of the rod member (24).

Abstract: The invention relates to a method of manufacturing a tire having a colored sidewall. The method comprises disposing a strip of a colored rubber compound circumferentially about the external surface of the sidewall region of the tire in its uncured state, placing the uncured tire in a tire curing mold with the strip exposed to direct contact with the mold, providing the mold with circumferential recesses at both sides of the rubber strip and letting the strip slightly overlap with the recesses in the radial direction of the tire, curing the tire whereby circumferential side parts of the strip flow into the recesses to form circumferential protrusions in the strip, removing the tire from the mold, and removing the protrusions at least partially. The invention further relates to a tire obtained with the method.

Abstract: The invention relates to a polymer composition comprising a matrix polymer, silica particles dispersed therein, and a coupling agent and a screening agent for the silica particles, and is characterized in that the screening agent is an alkylamine compound. The polymer composition is particularly suitable for the manufacture of rubber tires with improved rolling resistance.

Abstract: A method of producing a bent rod includes impregnating fibers (1) with resin (2), introducing the impregnated fibers into a flexible plastic tube (3), bringing the flexible plastic tube to a desired bent form and crosslinking the resin with the fibers to produce the rod with the desired bent shape. The flexible plastic tube is formed from a material that has a very low friction coefficient and the flexible plastic tube remains in its position after the crosslinking to permit sliding movement of the bent rod relative to an adjacent structure.

Abstract: A motor vehicle front spoiler has a spoiler lip (11) extending in the region of a front part of the motor vehicle over the entire width or part of the width of the front part. An actuating element (12) enables the spoiler lip (11) to be shifted between an extended operating position, in which the spoiler lip (11) forms a downwardly directed extension of the front part and acts as an aerodynamic air-guiding device, and a retracted inoperative position, in which the spoiler lip (11) is directed to the rear and essentially has no aerodynamic air-guiding effect. A portion (13) of the spoiler lip (11) that is at the bottom in the operating position of the spoiler lip (11) and is in the vicinity of the roadway can be replaced.

Abstract: A method of producing a bent rod includes impregnating fibers (1) with resin (2), introducing the impregnated fibers into a flexible plastic tube (3), bringing the flexible plastic tube to a desired bent form and crosslinking the resin with the fibers to produce the rod with the desired bent shape. The flexible plastic tube is formed from a material that has a very low friction coefficient and the flexible plastic tube remains in its position after the crosslinking to permit sliding movement of the bent rod relative to an adjacent structure.

Abstract: A process for activating vulcanized waster rubber particles by treating the waste rubber particles with a rubber latex and a curing system and drying the treated waste rubber particles. The waste rubber particles are preferably treated with 1 to 4% by weight of rubber latex (calculated as dry substance) and 0.5 to 3% by weight of sulfur as vulcanizing agent, both being calculated on the waster rubber particles. The treatment is carried out conveniently by mixing the waste rubber particles with the vulcanizing agent, adding the latex at a temperature of from 70.degree. to 90.degree. C. and stirring the obtained mixture for 5 to 10 min. so as to evaporate the water. Also disclosed are processes for producing a rubber-like article by molding the activated waste rubber particles, whether or not mixed with a non-vulcanized rubber compound, while applying heat and pressure.