Abstract: A piston return stop device for seat belt tensioning equipment. Connected at one end to a seat belt through a cylinder is a piston having a tapered portion the diameter of which enlarges toward its other end. A cylindrical sliding member is slidably disposed between the cylinder and piston so as to slide together with the piston when the piston is thrust to tension the seat belt. A respective stopper member is slidably disposed within each guide groove radially perforated through the cylindrical sliding member and supported by the tapered portion of the piston.When the piston is thrust through the cylinder at an urgent time until the tension force of the seat belt reaches a predetermined value, the piston is stopped from moving within the cylinder furthermore and only the cylindrical sliding member slides within the cylinder due to its inertia force together with the stopper members. Then the stopper member is pushed up by the tapered portion of the piston to cut into the inner wall of the piston.

Abstract: A passive seatbelt system wherein the outer end of the passenger restraining belt moves forward or backward, permitting passenger entrance or exit and to automatically fasten or unfasten the belt about the passenger. The passive seatbelt system further includes at least one elastic piece coupled to the outer end of the belt whose rigidity gradually decreases from the outer end of the belt towards the center of the belt whereby when the belt is fastened the belt separates sufficiently from the passenger while still being able to be fastened normally when the belt is automatically fastened.

Abstract: An automatic mounting and alarming circuit for a seat belt of a vehicle capable of automatically fastening the seat belt to a rider of the vehicle upon sitting on the seat, as well as warning the rider of a state where the seat belt is not or can not be fastened. The automatic fastening and alarming circuit includes a seat switch for detecting the sitting of the rider on the seat, a door switch for detecting the opening and closure of a door, an automatic fastening control circuit for supplying a releasing signal to an electromagnetic means to unlatch the retained seat belt upon judging the sitting state of the rider by detection signals delivered from both of the switches, a fastening detection switch for detecting the suitably fastened state of the seat belt to the rider and an alarming circuit for generating alarm information to the rider upon detection of the not-fastened state of the seat belt by detection signals delivered from the seat switch and the fastening detection switch.

Abstract: The device comprises a belt portion passing round a support member carried by an arm which is pivotally mounted on a support located on the side of the seat opposed to the adjacent door of the vehicle. The arm is movable to a roughly vertical clearing position when the door is open. The arm is connected by a cable to a lever which is pivotally mounted on a lateral part of the body of the vehicle and is operatively connected to the door.

Abstract: A passive three-point lap and shoulder belt system has lap and shoulder belt retractors mounted on the lower rear corner of the door. The shoulder belt is slidable through an anchor loop mounted on the upper rear corner of the door. The inboard ends of the lap and shoulder belts are joined together at the juncture which is connected to a control belt mounted inboard the seat by an inboard retractor. The winding effort of the shoulder belt retractor is greater than the winding effort of both the lap belt retractor and the inboard retractor to locate the juncture of the lap and shoulder belts adjacent the anchor loop so that the lap belt is stowed vertically along the door and the control belt extends diagonally between the inboard retractor and the juncture of the lap and shoulder belts.

Abstract: A vehicle passive seat belt restraint system including a seat belt adapted to be positioned across and in contact with the torso of a vehicle occupant, the improvement comprising cover means surrounding the seat belt and extending substantially along the entire length of that portion of the seat belt which otherwise would contact the occupant's torso, the seat belt being slideable within the interior of the cover means and the cover means being fixed with respect to said seat belt.

Abstract: In a vehicle passive seat belt restraint system including a seat belt having one end attached at a point of attachment to a door of the vehicle and its opposite end attached in the interior of the vehicle such that when the door is closed, the belt is automatically moved to a first position at which it restrains an occupant when seated in his seat and when the door is opened, the belt is moved to a second position located forward of the vehicle with respect to the first position, to permit free ingress to and egress from the vehicle, the door having a pivot point upon which the door pivots during opening and closing, the improvement for moving the belt to its second position upon only partial opening of the door, the improvement comprising:rod member having one end pivotally connected to the frame of the vehicle at a point located adjacent to and above the height of the door and having an opposite end communicating with the seat belt, the distance between the one end and the opposite end of the rod member bei

Abstract: A seat belt fastening device is designed for use with a safety belt which is attached to a vehicle door. The device is provided with a first plate mounted to the door and extending parallel to the door edge in the direction of door closing and a second plate mounted to the vehicle column adjacent the door. The first plate is connected with the safety belt and, upon closing of the door, enters into a force transmitting relation to the second plate on the door column structure, so that forces on the safety belt can be transmitted to the vehicle column.

Abstract: A passive safety belt system is disclosed providing both lap and upper torso belt portions adapted to provide maximum exit and entry convenience without utilization of mechanical means for pulling the belts away from the vehicle door opening. A generally Y-shaped belt is mounted at the upper door and lower door and connects for the third point to the spool of a retractor mechanism disposed in-board of the vehicle seat. The lap portion of the belt is connected to the upper torso portion by lifting straps which lift the lap portion out of the path of the occupant's legs as the occupant enters or exits the vehicle. The lap and shoulder portions are adapted to wrap in parallel combination onto the spool of the retractor to provide the necessary snugness of fit when the vehicle door is closed and the belt is in operable position. When deployed, the system provides a tight lap portion and a non-tensioned upper torso portion.

Abstract: A device for preventing a belt from being pulled from a retractor comprises a clamp holder and a base member having closely spaced surfaces defining a gap through which the belt passes and from which the belt runs off forwardly at an angle away from the base member. The holder receives a clamp which has a gripping surface protruding slightly from the holder surface and, in part, defining the gap. The holder is pivoted on the base member, and the clamp and holder are spring-loaded about the pivot axis in a direction which holds the clamp out of engagement with the belt. An abrupt force tending to pull the belt abruptly forward through the gap forces the holder to pivot or rock rearwardly, thus engaging the gripping surface of the clamp with the belt. Forwardly oblique, transverse wedging surfaces on the clamp and clamp holder wedge the clamp tightly against the belt and prevent it from being pulled forward.

Abstract: The present invention relates to an emergency passive restraint system comprises a protector supported along the side walls of the seat, and combined with a push-up means, and a flexible cord connected with a slider movable along the leg of the protector and with a pull-up means in both sides of the seat. Both of the restraining members are actuated simultaneously in emergency. The occupant's knees are lifted by the upward movement of the protector, and the cords are pulled up to a diagonal position, so that the occupant is restrained against his forward and lateral movements simultaneously.

Abstract: A child safety seat restraint adapter for restraining a child safety seat on a vehicle seat in association with a preinstalled passive diagonal torso safety belt anchored at one end on the vehicle door, extending across the vehicle seat and being anchored at an opposite end inboard of the vehicle seat, has an auxiliary safety belt buckle and an auxiliary anchor for anchoring the buckle outboard of the vehicle seat to the vehicle floor, an auxiliary tongue plate for releasably engaging with the buckle and a connector for connecting the tongue plate in a fixed relation to the preinstalled safety belt intermediate its ends whereby the child safety seat may be restrained on the vehicle seat by passing portions of the safety belt inboard of the connector over the child seat, when positioned on the passenger seat, and engaging the tongue plate with the buckle.

Abstract: A mechanism for automatically applying a three-point waist and shoulder belt to a vehicle seat occupant includes a first belt guide slideable along a track on the vehicle door in an inclined direction and a second belt guide connected at one end to a retractor belt which is connected to an inertia responsive belt retractor at the side of the seat opposite the door, a continuous shoulder and waist seat belt has a first end anchored to the upper free corner of the door and extends successively through the second and first belt guides and has its second end anchored to the lower free corner of the door. The belt first end may be buckle-coupled to the door and the first belt guide may be strap-connected to a track-engaging slide. A motor and control network are provided but downwardly advancing the first guide along the track with the occupant of the seat for the closing of the door and for retracting the first guide with the subsequent opening of the door.

Abstract: A passive three-point lap and shoulder belt system has the outboard ends of the lap and shoulder belts mounted on the vehicle body door respectively adjacent the hip and shoulder of the occupant. A retractor mounted on the body generally adjacent the inboard hip of the occupant winds a control belt which is connected with the lap and shoulder belts at the juncture of their inboard ends to establish the lap and shoulder belts in their occupant restraining positions when the door is closed. A door mounted belt stiffener is encased within the lap belt and includes a plurality of stacked abutting elements normally hingedly movable relative one another to allow the lap belt to fall limp across the occupant lap.