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.

An extension unit includes a buckle member, a first coupling member, a second coupling member, and a webbing belt. The buckle member is engaged with a first tongue plate of a seat belt apparatus, includes a first holder holding the webbing belt, and a fixing member fixing an end of the webbing belt. The second coupling member is disposed between the buckle member and the first coupling member and coupled to the first coupling member. The webbing belt joins the buckle member and the first coupling member. The second coupling member is so disposed that a projected region extending inward in a vehicle width direction is defined. The projected region has a size corresponding to a thickness of an operator's hand and is not overlapped with the buckle member. The second coupling member includes a second holder holding the webbing belt extending from the first holder to the fixing member.

A vehicle seatbelt assembly includes a first member, a second member, a buckle mechanism, and a clutch mechanism. The first member is configured to attach to one of a vehicle floor structure and a seat structure. The second member is supported on the first member. The second member is configured for limited sliding movement relative to the first member. The buckle mechanism is attached to the second member for movement therewith. The buckle mechanism has a latch device configured to releaseably retain a seatbelt latch tongue member. The clutch mechanism is disposed between the first member and the second member and is operable to switch between a dis-engaged state and an engaged state. In the dis-engaged state, the clutch mechanism allows movement of the second member relative to the first member. In the engaged state, the clutch mechanism prevents movement of the second member relative to the first member.

An adapter for connecting a pet restraining mechanism with a seatbelt of a vehicle having an elongated opening in a form of a slot that receives a webbing of the seatbelt and a narrow cut in a form of a slit for insertion and removal of the webbing into and from the elongated opening. The adapter also includes an opening for connecting the pet restraining mechanism with adapter.

A seat belt locking device (10) for a child car seat prevents relative movement of a typical automotive seat belt system, thereby maintaining tension upon the seat belt (8A) after the child car seat is installed to the vehicle. The device (10) described herein consists of a body (1) upon which pressure is applied and one or more keels (2) protruding from the body (1) inserted into the motor vehicle seat belt buckle tongue aperture (7) to prevent movement of the webbing strap (8A) through the buckle tongue aperture (7).

At a present tongue, a vertical rib is provided between a first elastic piece and a second elastic piece of a cover. When a guide bar is displaced toward a vehicle rear side, and the guide bar abuts the first elastic piece and the second elastic piece, the guide bar abuts the vertical rib. Due thereto, imparting of load to the first elastic piece and the second elastic piece by the guide bar can be suppressed, and elastic deformation of the first elastic piece and the second elastic piece can be suppressed.

A seatbelt tongue includes a webbing-receiving portion, a tongue portion, and a connecting portion connecting the webbing-receiving portion and the tongue portion. The connecting portion includes a lattice structure plastically deformable relative to the webbing-receiving portion and the tongue portion.

At a present tongue, four suppressing portions are provided between both abutment portions of a tongue main body. In a state in which transverse direction both side portions of a webbing are nipped between a pressing portion of a clamp member and the both abutment portions, a transverse direction central side portion of the webbing is nipped between the pressing portion of the clamp portion and the respective suppressing portions. Due thereto, one of the transverse direction central side portion of the webbing and the transverse direction both side portions of the webbing is pulled by another, and sliding toward the side of the another can be suppressed.

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 tongue for a motor vehicle seat belt restraint system providing high friction restraining belt webbing transfer through the tongue in an impact condition. The tongue incorporates a deformable element which maintains the webbing away from contact with high friction elements in the normal use of the belt system. In a crash condition in which significant tension loads are applied to the belt webbing, the deformable element yields to provide contact between the belt webbing and a high friction surface which restricts the transfer of the webbing from the shoulder belt portion of the webbing to the let belt portion of the webbing which is normally more highly loaded in an impact condition. Several embodiments of deformable elements are described.