Abstract: A control element comprises a magnetorheological elastomer or a magnetorheological fluid and at least one drive assembly for generating a variable magnetic field. A variable feel for the user can be generated by means of the drive assembly.

Abstract: A control element comprises an electro-rheological material and at least one driver assembly for generating a variable magnetic field. A variable feel that can be registered by a user can be generated by means of the driver assembly.

Abstract: In a load limiting device (10), especially for a seat belt in a vehicle, comprising a controllable braking device (16) which has a fluid-filled compartment (24) including a conduit (34) through which the fluid (23) can flow, an element to be decelerated (32) which is coupled to the seat belt, at least one sensor (18) for detecting vehicle operating data, especially an acceleration sensor, a sensor (20) for detecting the webbing extension, and a controller (22) for controlling the braking power of the braking device (16) as a function of the vehicle operating data measured and the webbing extension measured, the fluid (23) is a magnetorheological fluid and a control magnet is provided which is adapted to generate a variable magnetic field inside the conduit (34) and to vary the viscosity of the magnetorheological fluid inside the conduit (34).

Abstract: An actuator, especially for a vehicle protection system, comprises at least one wire (14) variable in shape depending on temperature made from a shape memory alloy and an elongate pyrotechnical element (12) connected to the shape-variable wire (14) so that upon ignition of the pyrotechnical element (12) the wire (14) is heated and experiences a change of length. The vehicle protection system is, for example, an airbag system comprising an airbag and a regulating mechanism for the internal airbag pressure, wherein the wire (14) of the actuator (10) is connected to the regulating mechanism so that a change of shape of the wire (14) exerts a force on the regulating mechanism.

Abstract: In a load limiting device (10), especially for a seat belt in a vehicle, comprising a controllable braking device (18) which has a fluid-filled compartment (24) including a conduit (34) through which the fluid (23) can flow, an element to be decelerated (32) which is coupled to the seat belt, at least one sensor (18) for detecting vehicle operating data, especially an acceleration sensor, a sensor (20) for detecting the webbing extension, and a controller (22) for controlling the braking power of the braking device (16) as a function of the vehicle operating data measured and the webbing extension measured, the fluid (23) is a magnetorheological fluid and a control magnet is provided which is adapted to generate a variable magnetic field inside the conduit (34) and to vary the viscosity of the magnetorheological fluid inside the conduit (34).

Abstract: A belt retractor including a force limiter comprises a belt reel which is rotatably supported in a frame as well as a blocking unit counteracting a rotation of the belt reel and a force limiter between the belt reel and the blocking unit which permits a limited torsion of the belt reel against the blocking unit under load. The force limiter includes a damping element consisting of a cross-linked polymer which is sheared under load.

Abstract: An actuator, especially for a vehicle protection system, comprises at least one wire (14) variable in shape depending on temperature made from a shape memory alloy and an elongate pyrotechnical element (12) connected to the shape-variable wire (14) so that upon ignition of the pyrotechnical element (12) the wire (14) is heated and experiences a change of length. The vehicle protection system is, for example, an airbag system comprising an airbag and a regulating mechanism for the internal airbag pressure, wherein the wire (14) of the actuator (10) is connected to the regulating mechanism so that a change of shape of the wire (14) exerts a force on the regulating mechanism.

Abstract: A belt retractor has a frame (10), a belt spool (12) that is rotatably mounted in the frame (10), and a force limiter (22) that is adapted to reach a force limiting position. A guide-in mechanism (26) is provided which causes the force limiter (22) to reach the force limiting position as a function of the length of belt webbing withdrawn.

Abstract: A belt retractor including a force limiter comprises a belt reel which is rotatably supported in a frame as well as a blocking unit counteracting a rotation of the belt reel and a force limiter between the belt reel and the blocking unit which permits a limited torsion of the belt reel against the blocking unit under load. The force limiter includes a damping element consisting of a cross-linked polymer which is sheared under load.

Abstract: A rotation damper, particularly for damping the rotary movement of a belt retractor shaft of a vehicle safety belt, has a housing which delimits a working space filled with a damping medium, and an element which is rotatable relative to the housing. Several pins serving as resistance elements, which extend into the working space, are provided on the element.

Abstract: A rotation damper, particularly for damping the rotary movement of a belt retractor shaft of a vehicle safety belt, has a housing which delimits a working space filled with a damping medium, and an element which is rotatable relative to the housing. Several pins serving as resistance elements, which extend into the working space, are provided on the element.

Abstract: A belt retractor (10) comprises a belt reel (12), an adaptive belt limiter (20) and a belt tensioner (22). The force limiter (20) is arranged between the belt reel (12) and the belt tensioner (22) and is operated with a high characteristic during tensioning.

Abstract: A seat belt system for a motor vehicle with a belt roller (14) and a belt strap (16) wound on the belt roller (14) further has a braking arrangement (17) that can be actuated by an actuator (32) for braking movement of the belt strap (16), the braking arrangement (17) being equipped with an arrangement (20, 38, 40) for automatically increasing an actuating force generated by the actuator (32), the actuator (32) being connected to an electronic control unit (35). The electronic control unit (35) controls the actuator (32) as a function of at least one occupant-specific and/or situation-specific parameter in order to effect braking of the movement of the belt strap (16) that is adapted thereto.

Abstract: A belt retractor has a frame (10), a belt spool (12) that is rotatably mounted in the frame (10), and a force limiter (22) that is adapted to reach a force limiting position. A guide-in mechanism (26) is provided which causes the force limiter (22) to reach the force limiting position as a function of the length of belt webbing withdrawn.

Abstract: A rotation damper, particularly for damping the rotary movement of a belt retractor shaft of a vehicle safety belt, has a housing which delimits a working space filled with a damping medium, and an element which is rotatable relative to the housing. Several pins serving as resistance elements, which extend into the working space, are provided on the element.

Abstract: A safety device for a vehicle occupant restraint system is able to be transferred from a first state into a second state. An impulse-controlled actor is provided to transfer the safety device from the first state into the second state. The actor is preferably a linear adjustment drive with a bistable lifting magnet (10).

Abstract: A belt retractor for a vehicle safety belt system has a frame, a belt reel rotatably mounted in the frame, and a brake device. The brake device includes at least one first brake element and a brake disk rotatably disposed relative to the first brake element and has an adjusting disk rotatable with respect to the brake element. The brake device is designed such that a rotation of the adjusting disk causes a displacement of the first brake element, so that the brake element is caused to rest against the brake disk.

Abstract: A device for tensioning a safety belt includes a motor and a traction transmission device having a first end and a second end. The second end of the traction transmission device is coupled to a belt buckle or an end fitting of the safety belt. The motor is constructed as a tensioner drive for an emergency tensioning. The traction transmission device is coupled to the motor such that a drive movement of the motor is converted into a longitudinal movement of the traction transmission device.

Abstract: A buckle tensioner for pre-tensioning a safety belt band comprises a traction transmission device engaging on a belt buckle, a motor and a pressure storing device which is able to be compressed by means of the motor. The traction transmission device is coupled in a force-fitting manner to the pressure storing device and the pressure storing device is arranged such that an expansion of the pressure storing device brings about a pulling away of the belt buckle for tensioning the safety belt band.

Abstract: A buckle tensioner for pre-tensioning a safety belt band comprises a traction transmission device engaging on a belt buckle, a motor and a pressure storing device which is able to be compressed by means of the motor. The traction transmission device is coupled in a force-fitting manner to the pressure storing device and the pressure storing device is arranged such that an expansion of the pressure storing device brings about a pulling away of the belt buckle for tensioning the safety belt band.