A seat belt assembly for a vehicle includes a pretensioner, and a cable connected to the pretensioner. The seat belt assembly includes a torsion bar having a plurality of teeth. The cable has slots interlocking with the teeth. During a sensed impact of the vehicle, the pretensioner is activated to retract the cable to pretension the seat belt assembly relative to an occupant of the vehicle. The interlocking of the slots with the teeth exerts torsional forces on the torsion bar, which yields to reduce forces on a chest of the occupant.

A seat belt buckle assembly includes a buckle housing; a plate extending from the buckle housing and defining a slot; and a bracket including a rivet engaged in the slot. The plate and rivet are configured such that, in response to an impact force that exceeds a threshold acting to pull the buckle housing away from the bracket, the slot plastically deforms, permitting the buckle housing and plate to translate relative to the bracket.

In a buckle device, displacement of a buckle cover in a width direction with respect to a buckle guide is restricted by restricting grooves of the buckle cover and restricting ribs of the buckle guide that enter the restricting grooves. This enables a space to be secured between a wall portion on one side in a width direction of the buckle cover and a wall portion on one side in a width direction of the buckle guide.

A pretensioner for a seat belt device in a vehicle includes a cable connected to the seat belt device at a first end of the cable. The pretensioner also includes a base frame containing a pipe. A rod is located within the pipe, and one end of the rod is configured to be subjected to pressure from gas provided by a gas generator. A second end of the cable and a second end of the rod are connected to a swage block. The rod is configured to be driven within the pipe in the pretensioning direction by gas from the gas generator when the gas generator initiates in response to an acceleration of the vehicle greater than a predetermined high acceleration thereby causing the swage block to move and pull the cable to thereby cause a corresponding movement of the seat belt device.

An assembly includes a housing. The assembly includes a spool rotatable relative to the housing. The assembly includes a cable fixed to the spool. The assembly includes a passenger restraint fixed to the cable. The assembly includes a pyrotechnic device fixed relative to the housing and designed to rotate the spool relative to the housing. The assembly includes a ratchet-and-pawl mechanism between the housing and the spool.

The present invention describes a restraining system (20) for a seat belt buckle (22) comprising: a housing (44), a motor (24), a set of gears (25, 26, 28, 30), locking mechanism (46, 48, 50), and a controlling unit (41); the restraining unit is mounted on the housing (44) for providing restraining force to the seat belt buckle (22); the restraining unit comprises at least one motor; the set of gears (25, 26, 28, 30) are mounted on the housing (44) and connected with the at least one motor (24) for providing either first direction motion or second direction motion to the seat belt buckle (22), on receiving the restraining force; the locking mechanism is mounted on the housing (44) for controlling rotation of one or more gears from the set of gears (25, 26, 28, 30); the controlling unit is operatively connected with the restraining unit and the locking mechanism, the controlling unit (41) is configured for controlling operation of the motor (24) and the locking mechanism, based on a predefined instruction.

The present invention relates to a tensioning device for a seat belt device, with a gas generator for generating a pressurized gas, a piston that can be driven by the pressurized gas, a tension cable connected to the piston, which tension cable can be connected to a safety belt component that is to be set into a tensioning movement and which tension cable extends through the piston, a guide part arranged on the tension cable, and a tensioning tube for receiving the piston and the guide part, which is characterized in that the guide part is arranged on the side of the piston facing away from the gas generator and is movable relative to the piston.

A pretensioner for a seat belt device in a vehicle includes a cable connected to the seat belt device at a first end of the cable. The pretensioner also includes a base frame containing a pipe. A rod is located within the pipe, and one end of the rod is configured to be subjected to pressure from gas provided by a gas generator. A second end of the cable and a second end of the rod are connected to a swage block. The rod is configured to be driven within the pipe in the pretensioning direction by gas from the gas generator when the gas generator initiates in response to an acceleration of the vehicle greater than a predetermined high acceleration thereby causing the swage block to move and pull the cable to thereby cause a corresponding movement of the seat belt device.

A seat belt device includes a webbing and a tongue. The webbing includes a lap belt and a shoulder belt. At least a portion of the lap belt is configured to be disposed to extend in a vehicle-width direction along a front of an abdomen of an occupant. At least a portion of the shoulder belt is configured to be disposed obliquely along a front of a chest of the occupant. The tongue is provided between the lap belt and the shoulder belt of the webbing and is configured to be coupled to a vehicle body when the tongue is to be mounted. The tongue rotates in accordance with a collision or a warning of the collision of a vehicle in a direction in which the shoulder belt is twisted with respect to the vehicle body.

A vehicle seat belt device that includes: a load transmitting member that is formed in a flexible elongate shape, an end portion, at a seat rear side, of the load transmitting member being engaged with an anchor that is secured, at a seat rear side and at a seat lower side of a seat cushion, to a vehicle body or a vehicle seat, and an end portion, at a seat front side, of the load transmitting member being engaged with a pretensioner that is provided at the seat front side and at the seat lower side of the seat cushion and which, upon activation, pulls the seat front-side end portion of the load transmitting member inside the pretensioner; and a guide portion that is provided integrally with a buckle and that abuts a middle portion of the load transmitting member.