A seatbelt assembly and method of operating a seatbelt includes allowing webbing to slide between a lap portion and a torso portion through an unlocked weblock of a tongue assembly; and upon forces exerted by an occupant on the webbing, the weblock locking the webbing from movement between the lap and torso portions while increasing tension in the lap portion via the tongue assembly.

A seatbelt assembly and method of operating that includes a tongue assembly having a weblock and a secondary weblock mounted to a tongue selectively securable to a buckle; a webbing extending adjacent to the weblock and secondary weblock between a torso portion and a lap portion; and the weblock and secondary weblock allowing for the webbing to slide between the torso and lap portions when in unlocked positions and pivoting relative to the tongue such that the weblock and secondary weblock prevent the webbing from sliding between lap and torso portions in locked positions.

In a locking tongue (10) for a seat belt comprising an inserting portion (12) adapted to be inserted in a belt buckle and a deflecting portion (14) for webbing, wherein the deflecting portion (14) includes a webbing passage (20) as well as a clamping element (22) for the webbing and the clamping element (22) is movable between a home position in which the webbing is freely movable and a blocking position in which the clamping element is moved against a wall of the webbing passage so that the webbing is clamped between the clamping element (22) and the wall of the webbing passage (20), and wherein at least one spring element (34) is provided for forcing the clamping element (22) into the home position, it is provided that the spring element (34) is formed integrally on the deflecting portion (14).

A seat belt buckle tongue (1) with a tongue body (3) extending in the direction of plug-in (2), in which a strap slot (4) is formed for the passage of a strap (5), and a deflection element (6) movably the tongue body (3), The strap (5), in an unloaded passage position of the deflection element (6), is movable through the strap slot (4), and is at least prevented from moving by the deflection element (6) in the loading position of the deflection element (6) induced by a tensile force to the strap (5). The deflection element (6) is movable from the passage position into the loading position with a constriction portion (18) along the contact surface (19) of the tongue body (3), so that the strap (5) in the loading position with a strap portion is flat in contact with both the contact surface (19) of the tongue body (3) and with the constriction portion (18) of the deflection element (6). In the loading position, the tongue body (3) engages with a region having the contact surface (19), through at least the portion of the deflection element (6).

Provided are a seat belt retractor and a seat belt device with which it is possible to improve energy absorption characteristics and a restraining property. The seat belt retractor includes a spool that performs winding of a webbing for restraining an occupant, a shaft inserted through an axial center of the spool, and a locking base connected to the shaft and capable of switching between a rotating state and a non-rotating state. The seat belt retractor further includes a load adjustment member disposed between the shaft and the locking base and that blocks or reduces load transmission in a case where a load equal to or greater than a threshold is applied to the shaft, and an energy absorption device disposed between the spool and the locking base and capable of changing an energy absorption amount according to a relative rotation speed between the spool and the locking base. The energy absorption device is connected in parallel with the load adjustment member.

A plug-in tongue (10) for a seat belt includes an inserting portion (12) adapted to be inserted in a belt buckle and a deflecting portion (14) for a webbing (16). The deflecting portion (14) includes a webbing passage (20) as well as a clamping element (22) for the webbing (16). The clamping element (22) can be displaced between a home position in which the webbing (16) is freely movable and a locking position in which the clamping element (22) is displaced against a wall (30) of the webbing passage (20) such that the webbing (16) is clamped between the clamping element (22) and the wall (30) of the webbing passage (20). The webbing passage (20) extends substantially in the longitudinal direction (L) or at an acute angle with the longitudinal direction (L) of the plug-in tongue (10). The clamping element (22) is displaceable at an acute angle with the webbing passage (20) and/or with the longitudinal direction (L) of the plug-in tongue (10) from the deflecting position into the locking position.

Provided are a seat belt retractor and a seat belt device with which it is possible to improve energy absorption characteristics and a restraining property. The seat belt retractor includes a spool that performs winding of a webbing for restraining an occupant, a shaft inserted through an axial center of the spool, and a locking base connected to the shaft and capable of switching between a rotating state and a non-rotating state. The seat belt retractor further includes a load adjustment member disposed between the shaft and the locking base and that blocks or reduces load transmission in a case where a load equal to or greater than a threshold is applied to the shaft, and an energy absorption device disposed between the spool and the locking base and capable of changing an energy absorption amount according to a relative rotation speed between the spool and the locking base. The energy absorption device is connected in parallel with the load adjustment member.

A locking tongue for a seat belt of a vehicle according to one embodiment includes: a tongue body including a main wall and a pair of side walls; a clamp member slidable in a direction toward the main wall; a rotating member rotatably supported by the side walls; and an urging member that urges the clamp member in a direction away from the main wall. In a normal state, a gap larger than a thickness of a webbing that is the seat belt is formed between the clamp member and the main wall. In an emergency of the vehicle, tension of a lap belt becomes greater than tension of a shoulder belt, causing the rotating member to rotate in a direction from the shoulder belt toward the lap belt against urging force of the urging member, such that the webbing is clamped between the clamp member and the main wall.