Abstract: An apparatus for driving a wire for actuating a webbing of an automatic seatbelt system includes a guide member and guide means. The guide member is prevented from rotating relative to a rotary drum on which the wire is wound, but allowed to move in the axial direction of the drum. One end of the wire is retained by the guide member, and this guide member is moved in response to the rotation of the rotary drum by the action of the guide means. Accordingly, the wire is tightly or closely wound on the rotary drum at all times.

Abstract: A webbing retractor has a take-up shaft for winding up a webbing. The take-up shaft is biased in the direction in which the webbing is wound up, by a spring having such a biasing force that there is no slack in the webbing when it is wound and yet the occupant feels no pressure from the webbing when he has the webbing fastened. When the webbing is unfastened and wound up onto the take-up shaft, a motor is activated, and the rotational force thereof is transmitted to the take-up shaft through a centrifugal clutch so that the take-up shaft is rotated, winding up the webbing.

Abstract: A webbing tension adjusting apparatus is arranged such that, when the occupant leaves the vehicle, a motor is rotated forwardly, and a takeup shaft for winding up an occupant restraining webbing thereon is thereby rotated in the webbing wind-off direction through a one-way clutch which is interposed between the motor and the webbing takeup shaft. Accordingly, the webbing is quickly wound off when the occupant leaves the vehicle, so that the webbing tension is reduced. Thus, it is possible to decrease the amount of friction or rubbing which occurs between the sliding webbing and the clothes of the occupant.

Abstract: A webbing tension adjusting apparatus for use in a webbing retractor employed in a seatbelt system for a vehicle which is arranged such that one end of an occupant restraining webbing is secured to a door of the vehicle and such that it is possible for an occupant of the vehicle to be automatically secured by the webbing simply by closing the door. When the door is opened, a resilient member for winding up the webbing is disengaged from a takeup shaft by a clutch means, whereby the biasing force of the resilient member which has been applied to the takeup shaft is cancelled. There is therefore no possibility that the webbing which is being wound off from the webbing retractor in response to the door opening operation may rub strongly against the body of the occupant.

Abstract: In a webbing retractor retracting an occupant restraining webbing therein, one end portion of resilient means giving a webbing retracting force to a webbing takeup shaft retracting the webbing thereon is driven by drive means, so that the retracting force of the takeup shaft is made changeable, and the drive of the drive means is controlled by a control device in accordance with detected signals from position detecting switch means for detecting a drive position of the end portion of the resilient means and from direction detecting switch means for detecting a drive direction thereof. Accordingly, not only the drive position but also the drive direction are reliably detected by the detecting switches, so that the webbing retracting force of the takeup shaft can be reduced securely.

Abstract: In a webbing tension device adapted for use in a webbing retractor for a vehicle in which a takeup shaft retracting an occupant restraining webbing thereon is biased in a direction of a webbing retraction by small resilient means and in an emergency situation of the vehicle a biasing force of large resilient means is transmitted to the takeup shaft through one clutch means so that the takeup shaft is biased in the direction of the webbing retraction by the large resilient means, another clutch means is disposed between the takeup shaft and the large resilient means. Accordingly, when the webbing is fully retracted on the takeup shaft after the vehicle is released from the emergency situation, the another clutch means is put in its connected situation, and when the webbing is unwound from the takeup shaft after it is retracted fully on the takeup shaft, an unwinding rotation of the takeup shaft is transmitted to the large resilient means, so that the large resilient means is wound up.

Abstract: An emergency locking retractor (ELR) for a safety seat belt system provided with a slack-take-up spring operable to instantaneously bias a belt retracting reel to take-up a slack in the seat belt in an emergency situation of the vehicle. The retractor is further provided with a rewinding mechanism including an electric motor for rewinding the slack-take-up spring after the spring energy thereof has been released. Switching circuits for automatically energizing the electric motor are also possible.

Abstract: In a webbing locking device locking an occupant restraining webbing, a movable locking member opposed to a fixed locking member is movable in a direction of a webbing drawing-out and approach to the webbing and trigger means causes the webbing to abut on a portion of the movable locking member, so that the webbing is locked by the fixed and movable locking members.In the locking of the webbing a webbing drawing-out force is converted to a locking, or clipping, force of the webbing by the movable and fixed locking member.

Abstract: In a webbing tension device adapted for use in a webbing retractor wherein clutch means is provided for putting a webbing takeup shaft and an operation wheel biased by resilient means in a connected situation in an emergency situation of an vehicle and for putting them in a disconnected situation in an ordinary running situation of the vehicle, the clutch means is provided with lever means opposed to a gear wheel fixed to the takeup shaft and the lever means is caused to abut on the operation wheel when the lever means is latched to the gear wheel in the emergency situation of the vehicle, whereby a compression force acting upon the lever means in the emergency situation is supplementally sustained.Accordingly, the lever means is reinforced without using large-sized clutch means.

Abstract: In a webbing tension device adapted for use in a webbing retractor, winding means includes a worm rotated by an occupant and a worm wheel to which a rotative operation force to the worm is subjected to reduction to be transmitted, and a rotation force of the worm wheel is transmitted through clutch means to large resilient means biasing a webbing takeup shaft in a direction of a webbing retraction. Accordingly, after a vehicle is released from an emergency situation, the worm can be rotated against a biasing force of the large resilient means so that the large resilient means is wound up.

Abstract: A webbing retractor is provided with a first variable resistor detecting a moving amount of an inner end of a spiral spring biasing a webbing takeup shaft in a direction of webbing winding, a second variable resistor detecting a moving amount of an outer end of the spiral spring and a drive control unit controlling a motor to move the outer end of the spiral spring in the direction of webbing winding or in a direction of webbing unwinding in response to signals outputted from the first and the second variable resistors. Accordingly, a tension of a webbing can be made comfortable for an occupant of a vehicle.

Abstract: In a webbing tension device adapted for use in a seatbelt system for protecting an occupant in an emergency situation of a vehicle, comprising a wheel supported by a webbing takeup shaft, a pawl latched to the wheel to prevent the wheel from rotating and trigger means detecting an acceleration and deceleration acting upon the vehicle in the emergency situation thereof to release the pawl from the wheel, cam means is caused to abut on the pawl and the trigger means. Accordingly, the wheel is surely prevented from the rotation in an ordinary running situation of the vehicle, and in the emergency situation of the vehicle the trigger means moves the cam means to release the pawl reliably from the wheel. In the present webbing tension device, thus, latching and releasing performances between the pawl and the wheel are improved.

Abstract: A slider for an automatic seat belt arrangement includes a slider main body which can be readily manufactured at low cost in an efficient manner, and yet, is capable of having sufficient strength for use in a motor vehicle.

Abstract: An outer end portion of a webbing is guided in the longitudinal direction of the vehicle, and a tongue plate provided on said outer end portion is engaged with a buckle device secured to the rear portion of a roof side, whereby the webbing is fastened to an occupant. A release plate movable a certain distance with respect to the tongue plate is moved forwards in the vehicle by drive means, whereby the tongue plate is moved forwards in the vehicle after the tongue plate is disengaged from the buckle device, so that the webbing can be separated from the occupant to automatically unfasten the webbing from the occupant.

Abstract: Automatically fastening seatbelt system, wherein an anchor plate engaged with one of restraining webbings is connected through a support device to a driving force transmitting member and made movable along a guide rail, whereby the webbings are automatically fastened to an occupant, a release device is provided at a predetermined position in the longitudinal direction of the guide rail, and the operation of the support device is released by the operation of the release device to release the anchor plate from the guide rail.

Abstract: An automatic seatbelt system in which a pair of sprocket wheels are driven by a single driving motor to move both shoulder and lap webbings in response to an occupant entering or leaving a vehicle. A flexible shoulder tape is connected to the shoulder webbing through a guide member slidable along a roof side of the vehicle, and extends along a vehicle body to mesh with one of the sprocket wheel. A flexible lap tape is connected to the lap webbing through a guide member slidable along an inner surface of a vehicle door, and extends along the vehicle door and body to mesh with the other of the sprocket wheel. When the sprocket wheels rotate, both shoulder and lap seatbelt webbings are simultaneously moved through the tapes toward either the front side of the vehicle to provide an enough space for the occupant to enter the vehicle, or the rear side of the vehicle to place the webbings over the occupant at a seat.

Abstract: A rotatable member rotatable by the movement of one of a lap webbing and a shoulder webbing and another rotatable member for moving an engageable portion of the other webbing are provided on the side of a vehicle body and on the side of a door, whereby these rotatable members are engaged with or disengaged from each other in accordance with the closing or opening of the door, so that one of the rotatable members being in contact with each other can impart rotation.Only one driving source can be provided for moving the webbings.

Abstract: A slider engaging an occupant restraining webbing is driven to move along a guide rail laid on a roof side of the vehicle, whereby a webbing can be automatically fastened to an occupant. One-way latch means is provided which allows the slider to move only to an automatically fastening position but does not allow same to move in the direction opposite to the above, whereby the slider is prevented from moving in a collision of the vehicle, thereby securing the safety of the occupant.

Abstract: A lock mechanism adapted to be actuated by an acceleration sensor in an emergency of a vehicle prevents webbing windoff, whereby an occupant is restrained. After completion of a collision, the manual operation of a release lever releases the action of the lock mechanism, so that the occupant can unfasten the webbing from himself to escape from the vehicle to outside. Thereafter, when the webbing is wound up the release lever is restored, so that the lock mechanism can lock again, thereby enabling to secure the restraint of the occupant for a subsequent emergency.

Abstract: An anchor plate engaging one end portion of an occupant restraining webbing is driven by a driving member movable along a guide rail provided on the vehicle body, whereby the webbing is automatically fastened to the occupant. A lock pawl of a locking plate pivotally supported by the vehicle body lock said anchor plate so as to support a tensile force of the webbing by the vehicle body in an emergency of the vehicle. A release block secured to the driving member rotates the locking plate, whereby the locking plate is disengaged from the anchor plate, so that the anchor plate become movable.