Abstract: The seat belt apparatus comprises a tongue plate, a buckle base structured such that the tongue plate can be inserted thereinto and removed therefrom, and a switch disposed on the buckle base for detecting the engaged and removed of the tongue plate. The switch is fixed to the buckle base by a rivet.

Abstract: In a seat belt device which restrains an occupant to a seat, a tongue plate includes a belt through portion in which a webbing pass-through opening which allows a webbing to pass therethrough is formed and an engaging portion which is engaged with a buckle, and the shape of the webbing pass-through opening includes a straight line portion which is linear in the webbing width direction and has an approximately constant width in the webbing thickness direction and first and second bent portions which have the approximately same width as the width of the straight line portion and respectively extend in the oblique direction from both ends of the straight line portion toward a buckle engaging portion side.

Abstract: A shoulder anchor device comprises a through anchor (23) for supporting a seat belt, a base member (3, 103) for mounting on a center pillar of a vehicle body, and a fixing mechanism (38, 40) for fixing the through anchor to the base member. The base member includes a channel-shaped anchor fixing portion (1) of a generally C-shaped cross-section for fixing the through anchor, and a pair of vehicle fixing portions formed integrally at opposite ends of the anchor fixing portion and formed into a generally flat plate-shape in a cross-section.

Abstract: A webbing anchorage is provided for use in a seat belt system. The webbing anchorage comprises a bolt; an anchor metal plate having a base portion and a free end portion, said base portion defining a bolt hole through which said bolt is inserted, and said free end portion defining a slot through which a webbing can extend supportedly; a lower cover extending over one side of said base portion of said anchor metal plate; a flexible upper cover member extending over at least an opposite side of the said base portion of said anchor metal plate; and an impact-absorbing member arranged within a space between an inner wall of said upper cover member and at least one of said opposite side of said base portion of said anchor metal plate and a top wall of a head portion of said bolt.

Abstract: It is object of the present invention to provide a buckle for a seat belt having an excellent double lock function that can surely lock the latching by a latching member even against impact in any directions without impairing normal operability.

Abstract: A seat belt retractor is provided with a pretensioner which comprises a wound-wire tightening mechanism and a drive means. The wound-wire tightening mechanism is composed of a pulley fixedly mounted on an end portion of a take-up spindle and a wire wound around the pulley with a small space left therebetween. The drive means comprises a piston connected to a free end of the wire, a cylinder with the piston movably received therein, a compression coil spring disposed in the cylinder to bias the piston in the pulling direction of the wire, and a trigger unit releasably holding the piston relative to the cylinder such that the piston can be maintained at a biased position against the resilient force of the compression coil spring but the holding of the piston at the biased position can be released responsive to an acceleration of at least a predetermined value.

Abstract: An adjustable shoulder anchorage is provided for use in a vehicle seat belt system. The anchorage includes a base defining a plurality of engagement portions distributed at predetermined intervals along the length of the base; a slide anchor provided movably under guidance along the base and carrying a joint on which a webbing is supported; a lock member provided on the slide anchor, the lock member being selectively engageable with the engagement portions; a stopper provided on a side of one end of the base so that movement of the slide anchor can be limited; and an impact absorber interposed between the stopper and the slide anchor, the impact absorber being flexible when brought into abutment against the stopper.

Abstract: A buckle stalk suitable for use in a vehicle seat belt system is described. The stalk includes an anchor member to be fixed on a side of a vehicle body, a buckle permitting releasable securement of a webbing thereon, and a non-metallic stalk member connecting the buckle and the anchor member to each other. The buckle stalk member includes a connector, by which the buckle and the stalk member are connected to each other in such a way that the direction of opening of a tongue-receiving socket of the buckle extends at an angle with respect to the stalk member.

Abstract: In a buckle stalk for a seat belt system, a stalk member connecting an anchor member and a buckle includes a webbing integrally covered with a resin cover, and a suppport member extending longitudinally in a folded-back portion of the webbing at one end near the anchor member to make the stalk member self-supporting. The support member is embraced by the webbing and the resin cover in a unitary form therewith.

Abstract: An adjustable anchor device comprises an elongated adjustment base, an adjustable anchor formed in a C shape cross-section and having a pair of opposing arms to enclose the adjustment base, an anchor member fixed to the adjustable anchor for supporting a shoulder belt, a lock member adapted to be engaged with an engaging opening on the adjustment base, and an interlocking means provided on the adjustable anchor for preventing said opposing arms from separating from each other.

Abstract: An adjustable shoulder anchor mechanism for use in a vehicle chassis having an engaging hole comprises as elongated adjustment base having a plurality of engaging sections arranged in the longitudinal direction thereof, an adjustable anchor adapted to be guided along the adjustment base, and the adjustment base formed at one end thereof with a hook section, the hook section adapted to be inserted into the engaging hole and moved to come into engagement with the vehicle chassis on an peripheral portion of the engaging hole.

Abstract: Disclosed herein is an anchorage for a webbing of a vehicle seat belt system. The anchorage is of the type that when an abrupt tensile force is applied to the webbing, a bracket fixed on a seat slide rail is deformed to bring a pin of a base plate secured on the bracket into engagement with a recess of an anchor stay fixed on a stationary base of a vehicle thereby to distribute the abrupt tensile force to the stationary base. The bracket comprises two parts consisting of a first bracket fixed on the seat slide rail and a second bracket which is secured on the base plate and is deformed upon application of a force of at least a predetermined value to the webbing. An engaged portion is provided with one of the first bracket and second bracket while an engaging portion is provided with the other bracket. The engaged portion and engaging portion are normally maintained in mutual engagement.

Abstract: A seat belt anchor mechanism includes an anchor stay defining interlocking teeth, a base plate displaceable together with an associated vehicle seat along the anchor stay, an interlocking means fixed on the base plate for engagement with any one of the interlocking teeth in the event of an emergency, means for mounting the base plate on the seat in such a way that the interlocking means is displaceable in a direction which crosses the sliding direction of the seat, and a cover member displaceable between a normal position and an emergency position. In the normal position, at least a part of the cover member is interposed between the anchor stay and the interlocking means so as prevent the interlocking means from engaging any one of the interlocking teeth. In the emergency position, said at least a part of the cover member is retreated from the space between the anchor stay and the interlocking means so as to allow the interlocking means to engage any one of the interlocking teeth.

Abstract: A seat belt anchor mechanism has such a structure that a base plate connected to the side of a vehicle body is separated from its corresponding seat-side member or members subsequent to the occurrence of an emergency so as to permit free sliding of the associated set even after a load of at least a predetermined level has been applied to the webbing. The separation can be achieved by a combination of brackets which are normally kept in engagement but in the event of an emergency are readily disengaged. Alternatively, a shear pin may also be used. The seat belt anchor mechanism permits easy escape of an occupant from a vehicle even in the event of an emergency such as collision.

Abstract: Herein disclosed is an improved belt anchoring device which is incorporated with a slidable seat. The device uses a monolithic metal bracket for connecting a slide rail of the seat to a pin holder which is slidable on a toothed anchor stay fixed to the vehicle floor together with the seat. Upon application of abnormal impact load thereto through the seat belt, the bracket is forced to bend to permit locking engagement between the pin holder and the anchor stay thereby assuredly and safely dispersing the impact load to the vehicle body through the belt anchoring device.