A webbing take-up device includes a spool that takes up webbing worn by an occupant, an input gear that is rotated by rotation force being transmitted, a spool gear that rotates the spool by being rotated, and a second clutch that is provided between the input gear and the spool gear, and that transmits rotation force of the input gear to the spool gear by being rotated by the input gear. The webbing take-up device further includes a sub clutch spring that is provided between the input gear and the second clutch, that transmits rotation force of the input gear to the second clutch when the input gear is rotated toward one side, and that shuts off transmission of rotation force of the input gear to the second clutch when the input gear is rotated toward another side.

A webbing take-up device includes a spool that takes up webbing worn by an occupant, an input gear that is rotated by rotation force being transmitted, a spool gear that rotates the spool by being rotated, and a second clutch that is provided between the input gear and the spool gear, and that transmits rotation force of the input gear to the spool gear by being rotated by the input gear. The webbing take-up device further includes a sub clutch spring that is provided between the input gear and the second clutch, that transmits rotation force of the input gear to the second clutch when the input gear is rotated toward one side, and that shuts off transmission of rotation force of the input gear to the second clutch when the input gear is rotated toward another side.

A vehicle safety system includes a vehicle seat and a child restraint system integrated with the vehicle seat. The child restraint system includes an illuminated status indicator system. The child restraint system includes an occupant detection system. The child restraint system includes one or more position sensors configured to determine seat bottom position. The child restraint includes a harness system. The harness system is stored behind a door panel in a seat back of the vehicle seat. The harness system includes one or more load sensors. The load sensors work in combination with a motor to automatically adjust harness fit. The child restraint system is configured to automatically deploy. The child restraint system is configured to automatically stow. The vehicle safety system includes an input/output (I/O) device configured to facilitate interactions with the child restraint system.

A locking retractor includes a frame, a spool shaft rotatably mounted thereto, an outer surface of a base of a housing mounted to the frame with one end of the spool shaft extending into an opening defined through the base, one or more locking components arranged on an inner surface of the housing and configured to cooperate with the spool shaft to selectively block rotation of the spool relative to the frame, a sealing member configured to extend about and engage a periphery of the first opening and to extend about and engage a periphery of the spool shaft to form a seal between the base of the housing and the spool shaft to block ingress of moisture and particles, and a cover hermetically attached to the housing with the locking components sealed between the cover and the base of the housing.

A locking retractor includes a frame, a spool shaft rotatably mounted thereto, an outer surface of a base of a housing mounted to the frame with one end of the spool shaft extending into an opening defined through the base, one or more locking components arranged on an inner surface of the housing and configured to cooperate with the spool shaft to selectively block rotation of the spool relative to the frame, a sealing member configured to extend about and engage a periphery of the first opening and to extend about and engage a periphery of the spool shaft to form a seal between the base of the housing and the spool shaft to block ingress of moisture and particles, and a cover hermetically attached to the housing with the locking components sealed between the cover and the base of the housing.

A vehicle seat includes: a seat back frame constituting a framework of the vehicle seat; a retractor received in an internal space of the seat back frame; and headrest poles which vertically extend through the retractor and are mounted to the retractor. The retractor may be mounted at an upper end of the seat back frame. By mounting the retractor within the seat back frame, instead of a separate mounting space, the thickness of the seat back in the forward/backward directions may be reduced, thereby thinning the seat and enlarging the passenger compartment.

A vehicle seat includes: a seat back frame constituting a framework of the vehicle seat; a retractor received in an internal space of the seat back frame; and headrest poles which vertically extend through the retractor and are mounted to the retractor. The retractor may be mounted at an upper end of the seat back frame. By mounting the retractor within the seat back frame, instead of a separate mounting space, the thickness of the seat back in the forward/backward directions may be reduced, thereby thinning the seat and enlarging the passenger compartment.

A system for improving safety of an occupant by a vehicle seat belt, which can provide adaptive protection for an occupant in different seat positions and different sitting postures is provided. A method for improving safety of an occupant by a vehicle seat belt is also provided, along with a computer-readable medium. The a system for improving safety of an occupant by a vehicle seat belt includes an in-vehicle observation system, an active seat belt system, and an integrated safety domain control unit. The integrated safety domain control unit formulates a vehicle seat belt protection strategy based on received data from the in-vehicle observation system, and a slack state of an active retractor and a positional state of an active lift buckle in the active seat belt system, to implement selective tightening or loosening of the active retractor and/or selective lifting or lowering of the active lift buckle.

A system for improving safety of an occupant by a vehicle seat belt, which can provide adaptive protection for an occupant in different seat positions and different sitting postures is provided. A method for improving safety of an occupant by a vehicle seat belt is also provided, along with a computer-readable medium. The a system for improving safety of an occupant by a vehicle seat belt includes an in-vehicle observation system, an active seat belt system, and an integrated safety domain control unit. The integrated safety domain control unit formulates a vehicle seat belt protection strategy based on received data from the in-vehicle observation system, and a slack state of an active retractor and a positional state of an active lift buckle in the active seat belt system, to implement selective tightening or loosening of the active retractor and/or selective lifting or lowering of the active lift buckle.

A method of controlling the motor speed of an electric retractor motor (18) of a belt retractor (10) for reducing a belt slack in the comfort mode comprises the following steps of: a) measuring the motor current (I.sub.M) applied to the retractor motor (18) as well as the voltage applied to the retractor motor (18), b) estimating the motor speed taking the time curve of the motor current (I.sub.M) applied to the retractor motor (18), the curve of the voltage as well as plural motor parameters (R.sub.M, I.sub.M, K.sub.M) into account, c) adapting the motor current (I.sub.M) in response to the estimated motor speed, and d) repeating the steps a) to c) until the estimated motor speed has reached a defined value.