Abstract: The invention relates to a backrest element for a vehicle seat, the backrest element comprising at least one frame element formed by a tubular element and forming at least one section of the backrest element, wherein a contour of the at least one frame element is given by a plurality of bends of the tubular element and is formed such that at least one inner surface is enclosed by the tubular element.

Abstract: An elevator car with brake equipment, which is arranged in the region of the elevator car, for holding and braking the same, which brake equipment includes: a brake unit which can co-operate with a brake rail, an actuating device which can produce an actuator force FA, and a connecting linkage which connects the actuating device with the brake unit in force-active manner for transmission of the actuator force FA, wherein the brake unit in unloaded setting is in its open setting and the connecting linkage is a pull cable.

Abstract: A lift car with a brake device which is arranged in the region of the lift car for holding and braking the latter; the brake device includes a brake unit which can interact with a brake rail, an actuating device which can generate an actuator force, and a connector which connects the actuating device to the brake unit in a force-active manner in order to transmit the actuator force, wherein the brake unit is in its open position in the unloaded position.

Abstract: An elevator car with brake equipment, which is arranged in the region of the elevator car, for holding and braking the same, which brake equipment includes: a brake unit which can co-operate with a brake rail, an actuating device which can produce an actuator force FA, and a connecting linkage which connects the actuating device with the brake unit in force-active manner for transmission of the actuator force FA, wherein the brake unit in unloaded setting is in its open setting and the connecting linkage is a pull cable.

Abstract: A locking system for providing authorization to access and drive a motor vehicle has a first control device for unlocking and locking the car doors, the ignition lock, the steering wheel lock, etc. Additionally, the locking system has a second device, which is an electronic key or an identifier. The two devices have transmission means and/or receiving means for electromagnetic signals with frequencies ? lying in a frequency band between two cut-off frequencies ?a, ?b. At least one of the signals, transmitted between the devices, is a coded operating signal for authenticating the second device. The actual frequency ?i with which the transmission means of the second device is operated is stored in a storage means of the first device.

Abstract: A lift car with a brake device which is arranged in the region of the lift car for holding and braking the latter; the brake device includes a brake unit which can interact with a brake rail, an actuating device which can generate an actuator force, and a connector which connects the actuating device to the brake unit in a force-active manner in order to transmit the actuator force, wherein the brake unit is in its open position in the unloaded position.

Abstract: A hydraulic vehicle brake equipped with a parking brake device, in particular for motor vehicles, including a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein the parking brake device acts on the brake piston and, in the applied condition, can be locked by a locking device, and an energy accumulator cooperating with the brake piston is equipped with at least one integrated spring element. In order to realize a simple and low-cost parking brake function that complies with legal requirements, according to the invention, the parking brake device is operable by a pressure that is introduced into the service pressure chamber and enables charging the energy accumulator.

Abstract: A floating-caliper disc brake of a motor vehicle has a component fixed to the vehicle, in particular a brake support member, and a floating caliper (2) that is displaceably mounted on the component fixed to the vehicle by way of at least two pin guides (10, 20). A first pin guide (10) includes a carrier pin (11), among others, for the transmission of brake circumferential forces. A second pin guide pin (20) includes a guide pin (21, 21?, 41) for positioning the floating caliper (2) perpendicular to its direction of displacement. To improve the floating-caliper guide, among others when high brake circumferential forces prevail, it the second pin guide (20) constitutes a multipart guide pin (21, 21?, 41), with a pin (22, 22?, 42), an elastic sleeve (23, 45, 50, 55) encompassing the pin (22, 22?, 42), and with a sliding bushing (28, 28?, 38) encompassing the elastic sleeve (23, 45, 50, 55).

Abstract: An actuating unit is provided for an electromechanically actuated disc brake for automotive vehicles, substantially comprising a driving unit or an electric motor, an actuating element by which one of two friction linings displaceably arranged within a brake caliper is brought into engagement with a brake disc, and a reduction gear. In order to determine a reaction force occurring during actuation, a sensor device for sensing the reaction force resulting from the actuating force applied by the actuating unit is provided between the guide piece and the brake caliper or a gearbox housing connected to the brake caliper, respectively.

Abstract: Disclosed is a floating caliper disk brake for motor vehicles capable of developing high braking power. To realize a floating-caliper disk brake of high rigidity and heat resistance together with light weight at the same time, the brake comprises a frame-like floating caliper (1, 41), which projects over a brake disk (2) and the brake pads (3, 4) on both sides of the brake disk (2), the caliper being supported with freedom of movement by means of pin guides (14, 57) on a component (15) permanently attached to the vehicle. The frame-like floating caliper (1, 41) is formed by an inner caliper section (5, 45), which has at least one actuating device (12, 52), and by one outer caliper section (6, 46), which is connected to the inner caliper section (5, 45) by means of at least two bridge sections (7, 47), which project over the brake disk (2). The caliper sections (5,6; 45, 46) have a lattice-like, light-weight structure of high rigidity.

Abstract: The present device relates to an electromechanically operated parking brake for motor vehicles that is designed as a drum brake of the ‘Duo-Servo’ type, including a floatingly supported expanding lock which is operable by an electromechanical actuator arranged on a wheel support member and which acts on two brake shoes. To ensure the floating support of the expanding lock that is formed of a threaded-nut/spindle assembly and to always provide a desired application force, the invention discloses that the threaded nut on its outside circumference has a spur toothing which forms a spiral-toothed gear wheel system along with a spiral-toothed gear wheel driven by the electromechanical actuator.

Abstract: A door handle is mounted on the outside of a vehicle door in a deflectable fashion, and a sensor for detecting a manual deflection of the door handle relative to the vehicle door is arranged in the door handle. It is possible to trigger a vehicle function electrically with the door handle when a predefined deflection value for the door handle is reached. These measures make access to a vehicle comfortable and reliable.

Abstract: The invention relates to a vehicle security system in the form of a keyless-go system and an operating method for it. In the vehicle security system, incorrect detection of a position of an authentication element (1) inside or outside the vehicle by authentication element locating means (21) in a vehicle-mounted access control component owing to at least one interference transmitter (10) which is present in the surroundings of the vehicle and/or of the authentication element (1) is avoided by using a device for performing empty measurement (9) in the authentication element (1). To do this, the device for performing empty measurement (9) performs a measurement in time periods in which the vehicle-mounted access control component (2) does not emit any pulses to the authentication element (1), by means of which measurement the interference level caused by the at least one interference transmitter (10) is determined.

Abstract: A handle arrangement for a vehicle door with a door handle mounted on its outside and a capacitive locking sensor arranged in the region of the door handle which is remote from the door has a capacitive sensor for a convenience closing function additionally provided in the region of the door handle which is remote from the door. These measures provide a user with a convenient and safe way of locking the vehicle and closing all vehicle openings.

Abstract: The invention relates to a locking system, for providing authorization to access and drive a motor vehicle. The locking system has a first device, which is a control device for unlocking and locking the car doors, the ignition lock, the steering wheel lock, etc. Additionally, the locking system has a second device, which is an electronic key or an identifier. The two devices have transmission means and/or receiving means for electromagnetic signals with frequencies ? lying in a frequency band between two cut-off frequencies ?a, ?b. At least one of the signals, transmitted between the devices, is a coded operating signal for authenticating the second device. The actual frequency ?i with which the transmission means of the second device is operated is stored in a storage means of the first device.

Abstract: The present invention discloses a device and a method for the redundant voltage supply of safety-relevant systems, in particular in motor vehicles. Both a failure of a voltage supply to safety-relevant systems is detected and a switchover to another voltage supply is initiated in response to this, and it is also ensured that even if one or two drive devices for switching over the voltage fail, a fallback level is available which then switches over the voltage. This ensures, both if a voltage supply to safety-relevant systems fails and if drive devices fail, that voltage is nevertheless switched over and in this way the availability of safety-relevant systems is considerably improved.

Abstract: The present invention relates to a hydraulic vehicle brake equipped with a parking brake device, in particular for motor vehicles, including a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein the parking brake device acts on the brake piston and, in the applied condition, can be locked by means of a locking device, and an energy accumulator cooperating with the brake piston is equipped with at least one integrated spring element. In order to realize a simple and low-cost parking brake function that complies with legal requirements, according to the invention, the parking brake device is operable by a pressure that is introduced into the service pressure chamber and enables charging the energy accumulator.

Abstract: An actuating unit is provided for an electromechanically actuated disc brake for automotive vehicles, substantially comprising a driving unit or an electric motor, an actuating element by means of which one of two friction linings displaceably arranged within a brake caliper is brought into engagement with a brake disc, and a reduction gear. In order to determine a reaction force occurring during actuation it is suggested by the invention that a sensor device for sensing the reaction force resulting from the actuating force applied by the actuating unit be provided between the guide piece and the brake caliper or a gearbox housing connected to the brake caliper, respectively.

Abstract: A system for automatic access or driving authorization for a motor vehicle includes a first device in the form of a control device having at least two states for engaging and disengaging vehicle door locks, an immobilizer, or the like. An associated second device is provided in the form of an electronic key, an ID transmitter, a chip card or the like. Both devices have means for transmitting or receiving signals, including a coded operating signal for authenticating the second device, so that a change in the state of the first device can be implemented when the second device is authorized. Before the second device is first activated, it is in a sleep state in which operation-independent function is not permitted and energy consumption is reduced. During a first operator-dependent authentication, the second device is changed over from the sleep state into a standby state in which an operation-independent function is at least partially made possible.

Abstract: The present invention relates to a friction brake, in particular a disc brake, for a motor vehicle with a friction element, e.g. a brake disc, coupled to the rotation of a vehicle wheel, forming a friction pairing of the friction brake with at least one associated brake lining, and with at least one clamping device for pressing at least one brake lining to the friction element. At least one controllable friction clutch is provided for using the rotational energy of the friction element in order to obtain the clamping force of the friction brake, the friction clutch being coupled on its input end to the rotation of the friction element and on its output end to the clamping device. Functional advantages are achieved because a friction pairing of the friction clutch is provided independently of the friction pairing of the friction brake. This eliminates undesired mutual influences. Altogether, such a friction brake obviates the need for an additional energy source for generating a brake clamping force.