A pre-tensioner for a safety belt of vehicles is provided. The pre-tensioner for a safety belt of a vehicle that is disposed in a side sill of the vehicle and that operates to pull the safety belt by pushing a piston into a tube by a high pressure gas of a gas generator using explosive power of gunpowder that is configured at one side of a bracket in a state in which the piston is connected to the safety belt through a wire within the tube including: internal and external weldnuts that are fixed to each one side of internal and external side surfaces of the side sill, wherein by penetrating the side sill in a vehicle width direction by forming a screw at an external circumference of both end portions of the tube, the both end portions are engaged with the internal and external weldnuts, respectively.

A locking web retractor includes a spool mounted between side walls of a frame and rotatable in web take-up and pay out directions, and a locking apparatus including a toothed wheel rotatable with the spool, a movable component and a lock pawl. The movable component moves between a locking position in which it forces an engagement end of the lock pawl into engagement with the toothed wheel to prevent the spool from rotating in the web pay out direction, and an unlocking position in which the movable component does not force the engagement end of the lock pawl toward the toothed wheel. The lock pawl defines a counterweight at an opposite end and configured, in the unlocking position of the movable component, to cause the lock pawl to move in a direction which draws the engagement end of the lock pawl away from the toothed wheel.

A system includes a seatbelt retractor having a spool and a braking claw selectively engageable with the spool. The system includes an actuator designed to inhibit engagement of the braking claw with the spool. The system includes a processor and a memory storing program instructions executable by the processor to actuate the actuator to inhibit engagement of the braking claw with the spool for a threshold amount of time after detecting an impact of a vehicle.

A system includes a seatbelt retractor having a spool and a braking claw selectively engageable with the spool. The system includes an actuator designed to inhibit engagement of the braking claw with the spool. The system includes a processor and a memory storing program instructions executable by the processor to actuate the actuator to inhibit engagement of the braking claw with the spool for a threshold amount of time after detecting an impact of a vehicle.

A self-locking seat belt retractor includes a blocking system for a seat belt winding shaft that is actuated in an at least vehicle-sensitive manner, in which, in the event of triggering, a sensor mass mounted in a vehicle-sensitive manner moves a locking lever with its engagement tip into a trigger position in engagement with the toothing of a control disk, as the result of which the control disk in its joint rotational motion with the belt winding shaft is stopped and the blocking system is activated. The sensor mass is situated in a support part on a contact surface, and when vehicle accelerations occur the sensor mass in the support part is movable on the contact surface by inertial control from a neutral position into the trigger position. The support part together with the sensor mass situated therein is situated in a housing that includes the control disk. The housing with the support part and the sensor mass situated therein is fixable on the seat belt retractor in various rotational angle positions with respect to the control disk.

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).

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).

A belt retractor including a self-orienting vehicle-acceleration-sensitive sensor device (18) including a belt shaft, and a first blocking device blocking the belt shaft in the belt extraction direction, which is controllable by the sensor device (18). The sensor device (18) includes a sensor housing (1) pivotable about a pivot axis (S), which is fixable with respect to the frame using a second blocking device (17). A contact surface (5) for an inertial mass is provided in the sensor housing (1). The contact surface (5) is shaped such that in the case of an oriented sensor housing (1) starting from the center of the contact surface (5), the line of intersection between the contact surface (5) and a first central plane (E1) extending through the center of the contact surface (5) perpendicular to the pivot axis (S) has a flatter angle (W) with respect to the horizontal plane (H) than the line of intersection between the contact surface (5) and a second central plane (E2) extending through the center of the contact surface (5) perpendicular to the first central plane (E1).

A belt retractor including a self-orienting vehicle-acceleration-sensitive sensor device (18) including a belt shaft, and a first blocking device blocking the belt shaft in the belt extraction direction, which is controllable by the sensor device (18). The sensor device (18) includes a sensor housing (1) pivotable about a pivot axis (S), which is fixable with respect to the frame using a second blocking device (17). A contact surface (5) for an inertial mass is provided in the sensor housing (1). The contact surface (5) is shaped such that in the case of an oriented sensor housing (1) starting from the center of the contact surface (5), the line of intersection between the contact surface (5) and a first central plane (E1) extending through the center of the contact surface (5) perpendicular to the pivot axis (S) has a flatter angle (W) with respect to the horizontal plane (H) than the line of intersection between the contact surface (5) and a second central plane (E2) extending through the center of the contact surface (5) perpendicular to the first central plane (E1).

The present invention pertains to a vehicle sensor device and a seat belt retractor employing same, the vehicle sensor device comprising: a body forming the outer appearance thereof; a cover coupled to one opened surface of the body; a sensor housing rotatably installed in the body according to the inclination of a backrest and the installation angle of the body; a ball installed in the sensor housing and detecting the inclination of a vehicle and the change of acceleration; and a sensor lever disposed over the ball and having one end rotatably coupled to the sensor housing, wherein the sensor lever is configured to allow a pilot lever provided in a locking device to linearly reciprocate by a rotational movement according to the movement of the ball so that the sensor lever is installed in the senser housing in which the ball is installed.