A seatbelt retractor for a vehicle seatbelt webbing includes a frame and a spool rotatably mounted to the frame. The spool is configured to have the seatbelt webbing wound thereon. First and second bands are disposed in the spool symmetrically about an axis of the spool. The first and second bands are configured to plastically deform to at least partially absorb a load on the seatbelt webbing.

A seat belt retracting and locking apparatus and an automotive seat including a seat belt retractor, a sensor having a sensing seat and a sensing ball, and a locking mechanism. When the locking mechanism is in a locking state, the sensing seat is fixed in an initial position. When the locking mechanism is in an unlocking state, the sensing seat is rotatable. When the seat belt retracting and locking apparatus and the automotive seat are in a normal state, the sensing seat is locked in the initial position by the locking mechanism, and the angle and the position of the sensing seat are not affected by a change in the speed of a vehicle, so that relative positions between the sensing ball, a pawl, and a ratchet do not change, thereby improving the stability of the performance of the apparatus and seat.

A seat belt retracting and locking apparatus and an automotive seat including a seat belt retractor, a sensor having a sensing seat and a sensing ball, and a locking mechanism. When the locking mechanism is in a locking state, the sensing seat is fixed in an initial position. When the locking mechanism is in an unlocking state, the sensing seat is rotatable. When the seat belt retracting and locking apparatus and the automotive seat are in a normal state, the sensing seat is locked in the initial position by the locking mechanism, and the angle and the position of the sensing seat are not affected by a change in the speed of a vehicle, so that relative positions between the sensing ball, a pawl, and a ratchet do not change, thereby improving the stability of the performance of the apparatus and seat.

A belt retractor unit with a housing, a rotatably mounted belt reel, a blocking unit for blocking the belt reel, wherein the blocking unit has an electrically controllable actuator unit, a control apparatus for controlling the actuator unit, which has a sensor apparatus for measuring at least one horizontal acceleration value and a switching apparatus for controlling the actuator unit in dependence on at least the at least one horizontal acceleration value, wherein the belt retractor unit has a first emergency state, in which the magnitude of the horizontal acceleration value is above a first limit value and in which the belt reel is blocked, and an unblocking state in which the magnitude of the horizontal acceleration value is below the first limit value.

A belt retractor unit with a housing, a rotatably mounted belt reel, a blocking unit for blocking the belt reel, wherein the blocking unit has an electrically controllable actuator unit, a control apparatus for controlling the actuator unit, which has a sensor apparatus for measuring at least one horizontal acceleration value and a switching apparatus for controlling the actuator unit in dependence on at least the at least one horizontal acceleration value, wherein the belt retractor unit has a first emergency state, in which the magnitude of the horizontal acceleration value is above a first limit value and in which the belt reel is blocked, and an unblocking state in which the magnitude of the horizontal acceleration value is below the first limit value.

A seat system including a seat with a seat bottom having a seat bottom frame and a seatback having a seatback frame pivotably supported by the seat bottom frame. The seat system also includes a spool rotatably mounted to the seat bottom frame and a strap retractably extendable from the spool and fixed to the seatback frame.

A seat system including a seat with a seat bottom having a seat bottom frame and a seatback having a seatback frame pivotably supported by the seat bottom frame. The seat system also includes a spool rotatably mounted to the seat bottom frame and a strap retractably extendable from the spool and fixed to the seatback frame.

A seat belt retracting and locking apparatus and an automotive seat including a seat belt retractor, a sensor having a sensing seat and a sensing ball, and a locking mechanism. When the locking mechanism is in a locking state, the sensing seat is fixed in an initial position. When the locking mechanism is in an unlocking state, the sensing seat is rotatable. When the seat belt retracting and locking apparatus and the automotive seat are in a normal state, the sensing seat is locked in the initial position by the locking mechanism, and the angle and the position of the sensing seat are not affected by a change in the speed of a vehicle, so that relative positions between the sensing ball, a pawl, and a ratchet do not change, thereby improving the stability of the performance of the apparatus and seat.

A seat belt retracting and locking apparatus and an automotive seat including a seat belt retractor, a sensor having a sensing seat and a sensing ball, and a locking mechanism. When the locking mechanism is in a locking state, the sensing seat is fixed in an initial position. When the locking mechanism is in an unlocking state, the sensing seat is rotatable. When the seat belt retracting and locking apparatus and the automotive seat are in a normal state, the sensing seat is locked in the initial position by the locking mechanism, and the angle and the position of the sensing seat are not affected by a change in the speed of a vehicle, so that relative positions between the sensing ball, a pawl, and a ratchet do not change, thereby improving the stability of the performance of the apparatus and seat.

The present invention relates to a vehicle-sensitive sensor for a self-locking belt retractor, comprising: a support part, a sensor mass which is disposed vertically on a contact surface of the support part and can tilt relative to the support part and a locking lever which is coupled to the sensor mass and has an engagement tip, wherein the locking lever has at least two rotation elements for forming an axis of rotation for the locking lever, and wherein each rotation element rests on an associated contact point of the support part.