An occupant protection device for a vehicle includes a seat, a three-point seatbelt device, and a belt airbag device. An occupant to board the vehicle is to sit on the seat. The three-point seatbelt device includes a seatbelt extendable across a front of an upper body of the occupant sitting on the seat. The belt airbag device includes a belt airbag that is provided at a shoulder belt section, which is extendable from a shoulder to a waist of the occupant, of the seatbelt, and that is configured to be deployed when a collision occurs. The belt airbag includes a belt-direction deployment section extendable and deployable along the shoulder belt section, and an intersecting-direction deployment section extendable and deployable in a direction intersecting the shoulder belt section. The sections are configured to form a single bag by being coupled to each other below a head of the occupant sitting on the seat.

An occupant protection device for a vehicle includes: a three-point seatbelt device having a seatbelt extendable across a front of an upper body of an occupant sitting on a seat; and a belt airbag device including a belt airbag that is provided at a shoulder belt section, which is extendable from a shoulder to a waist of the occupant, of the seatbelt the belt airbag being configured to be deployed when a collision occurs. The belt airbag includes a belt-direction deployment section extendable and deployable along the shoulder belt section, and an intersecting-direction deployment section extendable and deployable in a direction intersecting the shoulder belt section. The belt-direction deployment section and the intersecting-direction deployment section are configured to form a single bag by being coupled to each other below a head of the occupant sitting on the seat.

An occupant protection apparatus includes: an airbag configured to be stored in a head rest or a seat back of a vehicle seat, and the airbag being formed as a single bag that is configured to cover a head of an occupant and including a front inflating part and a right and left pair of lateral inflating parts; a three-point seat belt device including webbing equipped with a lap belt and a shoulder belt, and a belt take-up mechanism, and the belt take-up mechanism applying tension to the webbing; and a control unit that, in the event that an impact to the vehicle has been predicted or detected, activates the belt take-up mechanism before inflating and deploying the airbag.

The invention relates to a belt retractor comprising a signal transmitter ring (6) for a magnetic sensor (34), comprising a hub (14) which is connected to the belt reel in a rotationally fixed manner and comprising a signal transmitter portion (20) exhibiting periodically varying material properties when viewed in the circumferential direction, wherein the signal transmitter portion includes a stop (30) by which it abuts against a contact surface (32) associated therewith, and comprising a spring portion (18) acting on the signal transmitter portion relative to the hub so that the stop abuts against the contact surface.

A system includes an infrared source is configured to transmit infrared waves. The system also includes a material that reflects infrared waves. An infrared receiver is configured to receive infrared waves reflected from the material.

A system includes a first webbing payout sensor and a seatbelt wear condition module. The first webbing payout sensor can detect a first webbing payout of a seatbelt associated with a seat of a vehicle. The first webbing payout is a first length of webbing of the seatbelt dispensed from a first retractor of the seatbelt. The seatbelt wear condition module can identify whether the seatbelt is worn correctly based on the first webbing payout. The system may further include a second webbing payout sensor that detects a second webbing payout of the seatbelt associated with the seat. The second webbing payout is a second length of webbing of the seatbelt dispensed from a second retractor of the seatbelt. The seatbelt wear condition module identifies whether the seatbelt is worn correctly based on the first webbing payout and the second webbing payout.

An occupant protection device for a vehicle includes: a three-point seatbelt device having a seatbelt extendable across a front of an upper body of an occupant sitting on a seat; and a belt airbag device including a belt airbag that is provided at a shoulder belt section, which is extendable from a shoulder to a waist of the occupant, of the seatbelt the belt airbag being configured to be deployed when a collision occurs. The belt airbag includes a belt-direction deployment section extendable and deployable along the shoulder belt section, and an intersecting-direction deployment section extendable and deployable in a direction intersecting the shoulder belt section. The belt-direction deployment section and the intersecting-direction deployment section are configured to form a single bag by being coupled to each other below a head of the occupant sitting on the seat.

A belt assembly includes a belt, a first sensor and a second sensor. The belt has a webbing and a plurality of markers distinct from the webbing and fixed thereto. The markers are equally spaced a first longitudinal distance thereon in a longitudinal direction. The first sensor and the second sensor each have an associated detection field directed toward the belt and responsive to the markers in the fields. The second sensor is a second longitudinal distance from the first sensor differing from the first distance.

A four-point seatbelt device for a vehicle including: a left and right pair of lap belts; a left and right pair of shoulder belts connected with the respective lap belts; a front latch portion connecting and disconnecting the left lap belt and left shoulder belt with the right lap belt and right shoulder belt; a retractor capable of taking up and pulling out the belt; a pull-out amount detection section capable of detecting a pull-out amount of the belt from the retractor; and a sitting posture detection section configured to determine the sitting posture of the occupant on the basis of the pull-out amount detected by the pull-out amount detection section, in a case in which a sitting posture of the occupant changes after the occupant sits on the vehicle seat and the front latch portion is connected.

A restraint system for an occupant seat mounted in a motor vehicle includes a processor to produce at least one control signal to control either or both of an electronically controllable unit to disable or impede operation of the motor vehicle and a notification device to produce a notification unless, in sequence, a first sensor produces a first signal indicating detection of an occupant being seated in the occupant seat followed by at least one second sensor producing least one second signal indicating that a rotatable shaft of a web retractor coupled to a web of a restraint harness has rotated by at least a threshold amount followed by a third sensor producing a third signal indicating that a tongue of the restraint system is engaged with a buckle of the restraint system.