An assembly for a vehicle includes a seatbelt buckle, a seatbelt retractor, and webbing retractably extendable from the seatbelt retractor and releasably engageable with the seatbelt buckle. The webbing is extendable from the seatbelt retractor from a fully retracted position toward an extended position. The assembly includes a vibration motor on the seatbelt buckle. The assembly includes a computer having a processor and memory including instructions executable by the processor to activate the vibration motor in response to movement of the webbing from the fully retracted position toward an extended position. The vibration motor provides haptic guidance to an occupant to engage the clip with the seatbelt buckle.

In this buckle device, a base end portion of a belt is folded back on itself to form a ring-shaped portion, and the belt is wound onto a spool in a state in which the ring-shaped portion of the belt has been inserted through an insertion hole in the spool. This enables a winding radius of the belt to be increased by the base end portion of the belt and enables a load at which the belt is permitted to be pulled out to be reduced, when the belt is pulled out from the spool.

In this buckle device, when a second wind of a belt is pulled out from a spool, a load at which the belt is permitted to be pulled out is small, whereas slide resistance of the belt with respect to a slide face is large. When a first wind of the belt is then pulled out from the spool, the belt pull-out permitting load is large, whereas the slide resistance of the belt with respect to the slide face is small. This enables variation in a load at which extending of a buckle body is permitted to be suppressed.

In the buckle device, when or after torsional deformation of the torsion shaft has started and allowance of the drawing-out of the belt has started, the breaking portion of the shear plate is started to be deformed by the coupling hole side surface of the spool, whereby the breaking portion allows the rotation of the spool and allows the drawing-out of the belt. Therefore, the allowable drawing-out load of the belt can be made the sum of the load for torsionally deforming the torsion shaft and the load for deforming the breaking portion, and can be increased.

In a buckle device, when a belt starts to be allowed to be drawn, a fracture portion is deformed by a side surface of a connection hole of a spool, so that the fracture portion allows a rotation of the spool and allows drawing of the belt. Then, the fracture portion is fractured by the side surface of the connection hole. Therefore, a drawing allowance load of the belt when the belt starts to be allowed to be drawn can be increased.

A vehicle seat assembly for a vehicle includes a vehicle seat, a seat support rail, a load limiter and a seatbelt assembly. The seat support rail supports the vehicle seat within the vehicle. The vehicle seat is adjustably supported to the seat support rail. The load limiter is supported to the seat support rail. The seatbelt assembly has a latch and a receptacle that receives the latch. The receptacle is movably supported to the load limiter. The receptacle is movable along the load limiter from a rest position to an operated position upon receiving a predetermined force.

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.

A seat belt device for a vehicle seat, having a seat belt, the belt tongue of which in an engaged state is releasably connected to a seat-side belt buckle. The belt buckle is guided via at least one wire rope through a sleeve-like deflection element, which defines the course of the wire rope between its connection point on the seat side and its connection point on the belt buckle side. The sleeve-like deflection element has a predetermined deformation point, at which the deflection element is deformed in the event of a head-on collision, more specifically with the belt buckle being displaced from its use position into a crash position in which the tilt or twist moments acting on the belt buckle are reduced.

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.

A buckle device includes: a buckle body to which a tongue portion mounted on a three-point seat belt is to be connected; a connecting member that is flexible and that has a first longitudinal end portion connected to the buckle body; and a force limiter mechanism including a take-up shaft around which a second longitudinal end portion of the connecting member is wound, the take-up shaft being supported below the buckle body in a vertical direction of a vehicle so as to be rotatable relative to a vehicle seat or a vehicle body, and an energy absorbing member that is deformed by rotation of the take-up shaft.