Abstract: The method and device of this invention immobilizes a person in a secure, upright restraint system in a police vehicle. It can be easily and safely applied by public safety officers including police or other law enforcement personnel and medical personnel to secure a person against undesired movement while maintaining them in an upright, sitting position which leaves the diaphragm free for natural, unrestrained breathing movement. The asphyxia-preventing restraining device comprises an ALR/ELR retractor. The ALR/ELR retractor comprises a shoulder harness having a pair of seat belt buckles, which significantly reduce the possibilities of injuries to police officers.

Abstract: For a safety belt (2) in a vehicle, the belt is tightened in the event of a collision for at least 300 ms, at the same time as the maximum pull on the safety belt is limited to a predetermined value during the whole tightening process. This is made possible by a tightening device (15) being arranged to be able to operate for at least 300 ms and by there being a load-limiting device (14) between the tightening device (15) and the belt.

Abstract: A head restraint for a passenger of a vehicle including a seat having a seat back, a helmet pivotally secured to the seat back, and an inertia harness mechanism connected to the helmet. The helmet has an interior suitable for receiving a human head therein. In particular, the helmet has a plurality of bar members extending in transverse relationship to each other and have a curvature generally conforming to a curvature of a portion of the human head. The inertia harness mechanism is suitable for restricting relative movement of the helmet upon application of forces beyond a desired level to the vehicle. Pad members are secured to the ends of the each of the bar members so as to generally face the human head received within the helmet.

Abstract: Vehicle seats are taught that comprise a cushion frame (10) having a pair of frame elements (12) and a cylindrical connector member (14) that interconnects the frame elements. At least one seatbelt pretensioning device (20, 40) preferably exerts a traction force on a seatbelt when the vehicle is subjected to an impact. The pretensioning device may include a drive force generating means (22, 42) and a movable member (26, 46). The drive force generating means and the movable member are preferably received within a cavity of the connector member. The movable member is preferably arranged and constructed to move along the connector member when the drive force generating means is actuated.

Abstract: A restraint system for moving a vehicle seat and occupant toward the vehicle floor. Fluid cylinders or rotary spoolers are mounted to the seat and have respectively a pair of extendable piston rods or rotary outputs connected via rods or flexible members to a cable slidably mounted to the seat with one cable end connected to the buckle of a three point belt assembly mounted to the seat and an opposite end connected to one end of the lap portion of the belt assembly. Activation causes the cable to be pulled tensioning the belt assembly and application of downward pressure to the seat.

Abstract: In a webbing retractor, when a vehicle is in an emergency, a pretensioner mechanism supplies gas in a cylinder. A slider substantially closes a gas passing portion, and a piston thereby starts to move upward. A fitting portion pushes the slider upward so as to maintain the closure of the gas passing portion, and a webbing is taken up. When an energy absorbing member in a force limiter mechanism is deformed such that the webbing is pulled out, the piston is moved downward, the gas passing portion is opened by the slider so as to discharge the gas in the cylinder from the gas passing portion.

Abstract: A seat restraint tensioner for a seat restraint system in a vehicle includes a housing for operative connection to vehicle structure and a movable piston disposed in the housing. The seat restraint tensioner also includes a gas generator operatively connected to the housing for expelling a gas to move the piston. The piston includes a passageway extending therethrough to control a rate of stroke of the piston when the gas is generated to apply a force for pulling-down belt webbing of the seat restraint system.

Abstract: A three-point seat belt system for a motor vehicle front seat has a belt tightening drive fastened to the front seat. The belt tightening drive engages an anchoring point of the seat belt fastened to the vehicle seat. The drive element of the belt tightening drive is securely connected to a belt webbing part, which derives from the lap belt and is guided through a belt webbing guide fastened to the seat substructure.

Abstract: The invention relates to a belt tensioner system comprising a belt, a piston/cylinder unit comprised of a piston and a cylinder, and a drive for the piston/cylinder unit. The system further comprises a power transmission device which is directly connected with the piston/cylinder unit and, at least in the case of restraint, with the belt and which on activation of the drive converts a movement brought about in the piston/cylinder unit into a displacement of the belt. The power transmission device is constructed as a push rod.

Abstract: A belt pretensioner in a vehicle, having a piston-cylinder device with a cylinder chamber containing an explosive charge. The piston has a piston rod that projects out of the cylinder on the side of the piston opposite to the cylinder chamber with the explosive charge, and is joined to a cable that drives, via a drum and a planetary gear set, a belt reel mechanism in the winding-up direction when the explosive charge is detonated. The cylinder chamber has an evacuation opening that communicates with a spill valve controlled by an electronic control unit in response to a sensor, which senses the weight of the occupant.

Abstract: The belt retractor of the occupant restraint system comprises a frame, a belt reel rotatably mounted in the frame, a locking mechanism for selectively blocking the belt reel and a vehicle-sensitive sensor. The locking mechanism is actuated by an actor. An electronic control unit is provided with an input interface and an output interface. The vehicle-sensitive sensor is connected to the input interface and the actor is connected to the output interface.

Abstract: A safety belt arrangement for motor vehicles. The arrangement includes a safety belt and a belt roller from which the belt is retracted and withdrawn. The safety belt arrangement also includes a belt deflection apparatus that includes a deflection member. The belt is guided from the belt roller to the deflection member so that the belt can be deflected as it approaches the passenger. The deflection member moves away from the passenger in the case of an accident due to a force applied by a spring. Normally, the deflection member is retracted against the spring force by a retainer mechanism. The retainer mechanism releases the deflection member in the event of an accident. The resulting tensile force applied to the belt moves the passenger back into the normal seated position.

Abstract: A device for tightening a three-point seat belt is located in the rear of a vehicle. A linear belt tightener is located in the region of the vehicle door sill aligned essentially parallel to the vehicle door sill. The linear belt tightener acts via a pulling element on the belt webbing of a seat belt. The belt webbing is guided through a belt guide anchored to the vehicle body.

Abstract: Provided is a compact power actuator which is simple in structure, reliable in operation, and easy to install. The power actuator comprises a piston assembly which is received in a fixed cylinder for either directly or indirectly engaging a vehicle occupant restraint member, and a propellant for rapidly increasing the inner pressure of the cylinder to push the piston assembly outward so that the restraint member may be instantaneously driven. A spring is interposed between the piston assembly and the propellant to urge the piston assembly in the projecting direction. The front end of the propellant fits into the central opening so that the available space may be fully utilized. Therefore, the size of the power actuator can be reduced, and the required amount of the pyrotechnic material for the propellant can be reduced due to the reduced initial volume of the chamber for the expansion of the generated gas.

Abstract: A seat belt retractor is formed of a frame, a reel rotationally supported by the frame for winding a seat belt, a reel urging device connected to the reel for urging the reel in a seat belt winding direction, a locking device provided between the frame and the reel for allowing the reel to rotate freely in a normal state and preventing the reel to rotate in a belt unwinding direction when necessary, and a belt tension control mechanism for controlling a belt tension of the seat belt. The belt tension control mechanism includes a motor, and a power transmission path situated between the motor and the reel and actuated by the motor. The power transmission path has an OFF-state in which a rotational torque of the motor is not transmitted between the motor and the reel, and an ON-state in which the rotational torque is transmitted between the motor and the reel. A power transmission path switching mechanism selectively switches the power transmission path between the ON-state and the OFF-state.

Abstract: In a seat belt pretensioner device, comprising a seat belt buckle which is supported in a moveable manner, a power generator for moving the buckle in a direction to increase a tension of the seat belt, and a reverse preventing device for preventing the reversal of the movement of the buckle, the reverse preventing device consists of a ball-type one-way clutch defining a plurality of chambers between an inner race and an outer race, each of said chambers narrowing in a rotational direction and receiving a ball and a spring urging the ball toward a narrower part of the corresponding chamber, and the springs are formed by bending a plurality of projections integrally formed in a peripheral part of a single disk shaped plate member into a wavy form. Thus, the multitude of springs are formed by a single member, and not only the management of component parts is simplified but also the assembly work for the one-way clutch is facilitated even when the one-way clutch is not adapted to be formed as a subassembly.

Abstract: An object of the present invention is to obtain an acceleration sensor that can reliably detect acceleration when inclination of an inclining member is within a fixed range, and that can reduce unnecessary movement of relevant members when inclination of the inclining member is outside of the range, so that space efficiency in an inner portion is high. In the present invention, a gear of a fixed gear fixed at a seat cushion is formed in only a portion in the circumferential direction, and a portion at which the gear is not formed is a sliding surface. One of teeth among a plurality of teeth of a pinion of a revolving gear is short, to form a notched tooth portion. In a state in which the forward-collapsed angle of a seatback exceeds a predetermined angle, the notched tooth portion faces the sliding surface and the revolving gear body no longer rotates. At this time, since a bracket at which a sensor ball is mounted also does not rotate, the bracket is held at a fixed position relative to a frame plate.

Abstract: A buckle pretensioner for a vehicle safety restraint comprising a buckle head (1) for receiving a buckle tongue to secure safety restraint webbing about a vehicle occupant in a three-point belt system; a cable (2) connected to the buckle head (1); and device (7) for rapidly withdrawing the cable in a belt tightening direction, the withdrawing device (7) comprising a force reservoir (8), and driving mechanism (6), and being of a compact construction through the use of set-up gearing (3,4) to magnify linear movement produced by the force reservoir (8) which may be a pyrotechnic gas generator or a spring. The driving mechanism (8) may be a piston-cylinder (6,8) or a rack and pinion. The gearing may comprise a pulley arrangement (3,4). Alternatively a roots motor or a gear pump could be used.

Abstract: A motor retractor system includes a first winding device having a motor for driving a shoulder belt in a winding direction, and a second winding device having a tension-applying device for always applying a tension in a winding direction to a lap belt extending from the shoulder belt through a through-tongue. A control unit controls the motor to drive when the through-tongue coupled to the buckle is released from the buckle. Therefore, the shoulder belt can be smoothly pulled out. When the through-tongue is buckled up, an occupant can be restrained by the seat belt with a comfortable force and no slack. When the through-tongue is released from the buckle, the seat belt can be promptly withdrawn to the first winding device.

Abstract: The present invention provides a seat belt system comprising: a moving element (36) rotatably received in a housing (26); a device (32) for applying a pressurized gas to the moving element (36) when abrupt deceleration occurs on a vehicle; a tensile member (40) responsive to movement of the moving element (36) extruded due to the pressurized gas to generate a rotational torque; and a clutch mechanism (44) for transmitting the rotational torque generated by the tensile member (40) to a retractor shaft (24) to rotate the shaft (24) in a webbing-winding direction.

Abstract: Disclosed is a seat belt pretensioner device for moving a moveably supported seat belt buckle in a direction to increase the tension of a seat belt with a power generating device so as to automatically increase the tension of the seat belt in case of an impact situation. such as a vehicle crash. The power generator comprises a bladder-like member that can be pressurized for expansion, and a chamber defined for guiding the direction of the expansion of the bladder-like member. The buckle of the seat belt can be moved in the direction to increase the tension of the seat belt by pushing a member supporting the buckle with the bladder-like member.

Abstract: A safety-belt arrangement for a motor vehicle has a safety-belt (74) with an end fixing (73) in the form of a plate having an aperture (75). The end fixing may be inserted into a slot (72) formed in a rotatably mounted spool (55). A spring-biased catch (76) is provided which engages the aperture (75) to retain the end fixing in position. When the end fixing is in position a spring catch (70) is released permitting the spool (55) to rotate under the influence of a spring bias. If a severe force is applied to the belt (74), part of the belt is withdrawn from the spool under a force limiting effect. The spool may additionally be associated with a pre-tensioner.

Abstract: The present invention relates to a belt system for restraining a vehicle occupant, comprising a safety belt, a belt buckle, two end fittings, at least one belt retractor, at least one inflatable belt gas bag and at least two belt tensioners. At least one of the belt tensioners is an end fitting tensioner.

Abstract: An apparatus for tensioning a seatbelt has a piston that is driven in a guide tube and is connected to the belt webbing of the seatbelt via a traction cable and with a cable guide for the traction cable. The traction cable acts on one end of the belt webbing of the seatbelt and is looped around the cable guide 180°. The portion of traction cable extending between the cable guide and the belt webbing is guided substantially parallel to the axial direction of the guide tube.

Abstract: A housing (2) for mounting a gas generatot (7) in a pyrotechnic pretensioner, the housing comprising a hollow container for supporting the gas generator, the container having an opening through which the gas generator (7) may be inserted and having a tapered end section (20) arranged to be adjacent and to co-operate with a gas outlet end of the gas generator to provide a seal around the gas outlet, and the hpusing having a cover (8) for closing the container opening, the cover having a tapered wedge member (22) extending into the container in use at the opposite end to the tapered end section (20) to urge the gas generator (7) towards the tapered end section (20) of the container, in a close fit manner. The wedge(22) is preferably integral with the housing cover (8). This housing makes fitting of the gas generator easier and improves the seal between it and the pretensioner thus improving performance.

Abstract: A seat belt buckle carrier unit free from rattling noises having a connecting element held in a specific place by a fixing device. The fixing device can be formed by a spring steel wire which is fixed at one end and with its free end, exerts pressure on the connecting element. To ensure reliable contact between the spring steel wire and the connecting element, the spring steel wire can have, at its end exerting a pressure on the connecting element, a loop that surrounds the connecting element.

Abstract: A pretensioner 10 for a seat belt 12 utilizes a perforated strap 34 loosely coiled about a hub 38 wherein the hub 38 is, in normal operation of a vehicle, rotatable with a webbing reel shaft 40. A plurality of protrusions 42 are circumferentially spaced about the hub and mesh with the perforated strap 34 upon activation of the pretensioner 10. The pretensioner 10 contains a first passage 44 and a second passage 46 for the respective containment of the hub 38 and an actuator 20, wherein each passage is formed perpendicular and in volumetric intersection with the other. The pretensioner 10 also contains a gas generant composition 22 in combustive communication with the actuator 20.

Abstract: The invention relates to a vehicle seat (1) in particular motor vehicle seat, comprising at least one base (2) and one back (3) which is at least inclinable relative to said base by pivoting round at least one pivot axis (4). The seat is characterised in that it comprises a means of articulation or second means of articulation (6) which is located on one side of the seat (1), is normally freely movable and can be automatically locked by the direct or indirect action of at least one means (7) for detecting impacts or the consequences of an impact suffered by the vehicle under consideration.

Abstract: A motorized seat belt retractor configured to be activated in response to a signal generated by a dangerous state detection device indicating that a vehicle is in a dangerous state. The retractor is configured so that in response to the signal the retractor operates to retract a seat belt webbing prior to a collision thereby restraining an occupant positioned in a seat in the vehicle. The retractor is activated every time a signal indicating that the vehicle is in a dangerous state is received from the detector.

Abstract: A vehicle body acceleration sensor suitable for being used in a retractor attached to a backrest. A vehicle body acceleration sensor (32) for use with a seat belt having a transmission device (39) which pivots a sensor case (30) about its pivot axis S according to reclining angle of a backrest (62) in synchronization with reclining action of the backrest (62) so as to retain an inertial body support surface (30b) of the sensor case (30) in an appropriate orientation. The transmission device (39) has a slide member (53) disposed in a seat portion (63), a cam plate (54) which causes to move the slide member (53) back and forth within only a pivotable range of the sensor case (30), and a wire (56) for transmitting the movement of the slide member (53) to the sensor case (30).

Abstract: A seat restraint tensioner for a seat restraint system in a vehicle includes a housing for operative connection to vehicle structure and a movable piston disposed in the housing. The seat restraint tensioner also includes a gas generator operatively connected to the housing for expelling a gas to move the piston. The piston includes a passageway extending therethrough to control a rate of stroke of the piston when the gas is generated to apply a force for pulling-down belt webbing of the seat restraint system.

Abstract: A seat-belt system for motor vehicles, having an automatic seat-belt winder which guides the seat-belt band and is guided in a height-adjustable manner in an essentially vertical sliding guide arranged on the vehicle frame, having a locking device which locks the automatic seat-belt winder in a functional initial position in the sliding guide and opens the lock in the event of a collision, having a seat-belt tightening mechanism which, when the lock is opened, displaces the automatic seat-belt winder in the sliding guide in an opposed direction to the direction of the seat-belt band and the tensile forces acting on it due to the collision, until the seat-belt band is sufficiently tightened, and having a seat-belt force limiting mechanism which limits, in a specified manner, the tightening of the seat-belt band brought about by the seat-belt tightening mechanism, a resetting mechanism which, after the end of the collision, if tensile forces no longer act on the seat-belt band, guiding the automatic seat-belt w

Abstract: A belt tensioner comprises a cylinder with an inner shell surface, a piston with a piston head, a working space in the cylinder into which compressed gas enters upon activation of the tensioner to drive the piston, a part engaging the safety belt, and a traction means attached to the piston and to the belt engaging part. The piston head delimits the working space and is formed by an annular sealing plate on which an essentially axially extending thin sealing lip is formed. The lip is adapted to resiliently yield radially and contact the inner shell surface of the cylinder in a biased condition.

Abstract: A restraint system for moving a vehicle seat and occupant toward the vehicle floor. In one embodiment a fluid cylinder pivotally mounted to the floor has an extendable piston rod connected to a linkage mounted to the vehicle seat. A three point belt assembly mounted to the seat is connected to the cylinder rod. Retraction of the cylinder rod pretensions or tightens the three point buckle assembly and subsequently moves the seat towards the vehicle floor. In an alternate embodiment a displacement member including at least a flexible portion is connected at one end to a piston within a fluid cylinder and is connected at the other end to the linkage. An angle between 0 and 180 degrees is imparted to the flexible portion of the displacement member, allowing the cylinder to be oriented in alternate directions for space efficiency. Retraction of the cylinder rod tightens the three point buckle assembly and moves the seat towards the vehicle floor.

Abstract: A retractor (20) for a vehicle safety restraint for use in a rear vehicle seat comprising: seat belt webbing wound on a rotatable spool (2), and a vehicle sensor having an inertial sensor mass (5) supported in a housing and movable relative thereto when vehicle acceleration or deceleration exceeds a predetermined magnitude; a vehicle sensor pawl (7) arranged to be moved, in response to movement of the mass, from a position in which the spool is freely rotatable into a spool locking position; a seat back latching condition detector, adapted to be located in a latch for the rear seat back, means (10) connecting the latching condition detector to the vehicle sensing pawl, the connecting means being operable to move the pawl (7) into the spool locking position when a seat back deatched condition is detected.

Abstract: A tensioner for a safety belt has a piston/cylinder unit, which comprises a cylinder and a piston arranged in its interior, a compressed gas source, on the activation of which the piston is displaced, a belt engagement device which engages the safety belt, a traction cable which connects the piston to the belt engagement device, and at least one dampener for the absorption of energy on deceleration of the movement of the belt engagement device. The cylinder has a first end nearer to the belt engagement device and a second end further away therefrom. The piston consists of at least two piston parts, namely of a first, radially outer piston part and a second, radially inner piston part, the second piston part being uncoupled from the first piston part on deceleration of the piston at the end of the tensioning process.

Abstract: An automotive seat belt buckle pretensioner assembly includes a special mounting bracket for supporting the operating components of a pyrotechnic-powered cable extending from the seat belt buckle around a cable-redirection pulley. The mounting bracket includes a flat major wall that is parallel to a major wall on the pulley support structure, so that the pulley is located within the space defined by the parallel walls. A bolt, or rivet, extending between the parallel walls provides shaft support for the pulley, while acting as a connector mechanism between the pulley support structure and mounting bracket.

Abstract: A D-loop web belt gripper to releasably grip a web belt is disclosed. The D-loop web belt gripper includes a frame, a web belt gripping component, and a web belt actuating component. The web belt gripping component is a wedge having a plurality of web belt gripping teeth spatially biased away from a base member of the frame. The web belt actuating components is a bail having a lever arm, a pair of guide walls pivotally adjoined to a pair of guide walls of the frame, and a pair of drivers abutting the wedge. A first portion of a web belt is disposable between the web belt gripping teeth and the base member of the frame, and a second portion of the web belt is arcuately disposable upon the lever arm to form an arcuation in the second portion of the web belt. A forcible unbending of the arcuation in the second portion of the web belt can pivot the bail via the lever arm causing the drivers of the bail to displace the web belt gripping teeth of the wedge in the direction of the base member of the frame.

Abstract: A belt tensioner, in particular a buckle tensioner, for a vehicle occupant restraint system having a belt, comprises a housing, a gas generator for generating compressed gas in the case of restraint, a working space into which the compressed gas flows, a piston part displaceable by the compressed gas and a belt engaging device. The belt engaging device is in force-transferring relationship with the fastened belt. The tensioner further comprises a traction transfer device extending through the working space, which traction transfer device connects the belt engaging device with the piston part, and a sheathing for the traction transfer device which at least partially covers the traction transfer device within the working space. The sheathing is of a material having a temperature stability with respect to the hot compressed gas.

Abstract: A tensioner for a safety belt has a piston/cylinder unit (3), a compressed gas source (17), a belt engaging device (13), a traction transfer device (11) and a damping mechanism for the absorption of energy on deceleration of the belt engaging device (13). The damping mechanism comprises a first part (15) connected with the traction transfer device (11), projecting laterally from it and arranged outside the cylinder (5) in the non-actuated state of the tensioner, and comprises a second part connected with the cylinder (5) and provided on the end wall (23) of the cylinder close to the belt engaging device (13). At least one of the two parts is moved into the interior of the cylinder (5) during the damping process, so that the axial structural space of the tensioner (1) is small.

Abstract: A seat belt retractor may be spaced from and mounted at an attitude to the vertical that is different than the attitude of the retractor; and a mechanical connection therebetween operates the retractor to block belt protraction from the retractor reel when the vehicle and/or seat belt experience an acceleration or deceleration above a predetermined amount. Preferably, the retractor is of substantial conventional manufacture, and the remote actuator uses the same kind of proven inertia-sensitive components to provide a low-cost and proven system. Preferably, the remote actuator is connected mechanically by a cable to the retractor, and the cable actuates the retractor to its blocking position to stop belt protraction.

Abstract: The helmet restraint system of the invention secures the helmet of a driver or passenger occupant of a vehicle, such as a race car, to the structural chassis, body, or frame of the vehicle, independent of the shoulder harness or seatbelt. The system provides a head restraint system which reduces the potentially injurious forces to the neck and head during a high-deceleration event, particularly a frontal collision. The helmet restraint belt system comprises a restraint belt assembly which spans between an anchor point on the vehicle chassis/body and a belt receiving latch mounted to the driver's helmet. The belt is preferably retractable and pre-tensioned by means of a collision or inertially-lockable belt tensioner. The helmet restraint system allows the driver to have unrestricted head movement during normal driving, but restrains the helmet and head during the impact of a collision by locking the belt against further extension.

Abstract: A multi-point seat belt system (20′) for protecting an occupant seated upon a vehicle seat, the system comprising: a shoulder belt (42) and a lap belt (44) securable, with some amount of slack, about the occupant, a seat belt buckle (48) attached to one end of the lap belt (44) at an inboard location and a belt tightener secured to an opposite end (44b) of the lap belt for eliminating any slack in the lap belt, the belt tightener located at an outboard location.

Abstract: A vehicle occupant protection system (10) includes a sensor (16) which is effective to sense a distance between a vehicle (12) and an object (14) adjacent to the vehicle (12). The sensor (16) also is effective to provide a sensor signal (18) indicative of the distance between the vehicle (12) and the adjacent object (14). The system (10) also includes a length of seat belt webbing (26) extensible about an occupant (28) of the vehicle. An actuatable mechanism (22) is operatively connected with the webbing (26). The actuatable mechanism (22) is operable to effect a tightening of the webbing (26) around the vehicle occupant (28) upon the sensor signal (18) indicating that the distance between the vehicle (12) and the adjacent object (14) is within a predetermined distance.

Abstract: A pretensioner for a vehicle safety restraint, for rapidly reducing slack in a safety restraint belt in the event of a crash situation, the pretensioner comprising a cable (1) connected at one end to a piston (3) at its other end to a belt rewinding mechanism, the piston (3) being slidably moveable in a cylinder (4) under action of pressure from a gas generator (15) sensitive to a crash indicator, wherein means (5) are provided for controlling the rate of acceleration of the cable (1) in the pretensioning direction, in dependence upon the condition of tension in the safety restraint belt which is to be pretensioned. This can be effected by blocking holes in a dividing plate or by using a continuously variable throttle arrangement such as a profiled throttle pin or a hollow space in the piston with a restrictable opening.

Abstract: A belt tensioner for a vehicular seat belt, comprises a linear drive formed of a piston and a cylinder tube, and a belt engaging part connected to the piston by a deflected traction element. To provide a belt tensioner which can be more easily integrated in existing vehicle concepts, the belt engaging part is shiftingly guided in a guide fitting to be affixed flatly located to the vehicle body and the cylinder tube is affixed on or alongside the guide fitting.

Abstract: A retractor 100 for a seat belt to be mounted within a seat back of a reclining type seat. The retractor 100 comprises a winding shaft 4 for winding a webbing 90 therearound, a lock element of an emergency lock mechanism 300 for locking the rotation of the winding shaft 4 in the webbing drawn-out direction thereof, and a vehicle body acceleration sensor 32 for detecting a given vehicle body acceleration to thereby actuate the lock element. The lock element of the emergency lock mechanism 300 is structured such that, while the seat belt is not in use, if the seat back is set within the range from the most forwardly inclined position of the seat back to the the most backwardly inclined position of the seat back, a locking wall 41c of a rotation control disk 41 is contactable with a securing piece 15d of an engaging member 15 to thereby prevent the engaging member 15 from moving in a direction where it can be engaged with a latch cup 13.

Abstract: A safety belt arrangement comprising a holder which can be pivotally connected to a vehicle part about an axis which has a guide roller between two bearings. In the fastened state at least a band part of the belt band which partially wraps around the guide roller extends at an inclination to the axis of rotation of the guide roller. At increased brake forces the guide roller enters into engagement with a projection.

Abstract: In a pretensioner device for automatically increasing a tension of a seat belt in case of a vehicle crash which uses a piston and cylinder arrangement as a power generator, a spring member resiliently urges the piston assembly in the direction of actuation so that any play that may be present in each connecting potion of the path of power transmission can be eliminated. Therefore, collision between component parts at the time of activating the power generator can be prevented, and the loss of energy which could arise from such collision can be avoided. The piston assembly may comprise a piston main body slidably received in the cylinder, and a piston rod having a base end abutting an opposing end of the piston main body and a free end projecting out of the open free end of the cylinder while the cylinder is provided with an inwardly directed radial flange for preventing the piston main body from being projected out of the cylinder.

Abstract: A restraint system for moving a vehicle seat and occupant toward the vehicle floor. A fluid cylinder pivotally mounted to the floor has an extendable piston rod connected to a linkage mounted to the vehicle seat. A three point belt assembly mounted to the seat is connected to the cylinder rod. Retraction of the cylinder rod pretensions or tightens the three point buckle assembly and subsequently moves the seat towards the vehicle floor.