Abstract: In a webbing take-up device, when the release of a webbing belt is detected from the signal of a buckle switch, a motor starts driving, the webbing belt is taken up, and a computing circuit increases a voltage Eb in accordance with an integrated time after the signal is switched. In this state, a lock current flows due to an output shaft of the motor being stopped, and when the power to the motor is cut off by increasing the lock current, the values of voltages El and Ed respectively corresponding to the integrated time in which the lock current is powered and the integrated time in which the power to the motor is cut off are subtracted from the value of the voltage Eb, and the motor is driven until the computing result reaches a predetermined value.

Abstract: A buckle pretensioner system includes a substantially L-shaped rail for guiding a buckle body of a buckle from a position where the buckle body engages with a tongue plate to a position corresponding to a lumbar region of a vehicle occupant. When a vehicle disposed with the buckle pretensioner system undergoes a sudden deceleration, a piston inside a cylinder is moved in a frontward direction of the vehicle by gas generated by the actuation of a gas generator, a buckle stay is pulled by a wire coupled to the piston, and the buckle stay is moved along the shape of the rail. As a result, the buckle body supported by the buckle stay pivots from the position where the buckle body engages with the tongue plate to a vehicle occupant restraining position of a webbing belt, and then is pulled to the lumbar region-corresponding position.

Abstract: A webbing winding device in which a breadth dimension of a torque limiter is less than an axial direction dimension of an external gear. A rotation disc, the torque limiter or the like is wholly disposed, along a radial direction of the external gear, between the external gear and a peripheral wall of a baseplate. Further, members such as pawls, a rotation disc and the like are disposed, along a radial direction of the peripheral wall, between the peripheral wall and an adaptor, and these members are accommodated at an inner side of the external gear. Consequently, a thickness dimension (axial direction dimension) of a clutch is practically the same as an axial direction dimension of the external gear, and this is extremely thin.

Abstract: A webbing winding device in which a breadth dimension of a torque limiter is less than an axial direction dimension of an external gear. A rotation disc, the torque limiter or the like is wholly disposed, along a radial direction of the external gear, between the external gear and a peripheral wall of a baseplate. Further, members such as pawls, a rotation disc and the like are disposed, along a radial direction of the peripheral wall, between the peripheral wall and an adaptor, and these members are accommodated at an inner side of the external gear. Consequently, a thickness dimension (axial direction dimension) of a clutch is practically the same as an axial direction dimension of the external gear, and this is extremely thin.

Abstract: In a webbing winding device, when an external gear of a clutch receives driving force of a motor and rotates in a winding direction, a pressing portion of an inertial plate pushes a pawl and meshes the pawl with outward teeth of an adaptor. Consequently, the winding shaft rotates in the winding direction. When the external gear receives rotating force of the motor and rotates in a drawing out direction, another pushing portion of the inertial plate pushes another pawl and meshes the pawl with the outward teeth of the adapter. Consequently, the winding shaft rotates in the drawing out direction. Thus, by providing these pawls, in this webbing winding device it is possible to transmit both forward-rotation and reverse-rotation of the motor for rotating the winding shaft.

Abstract: A webbing retractor for an elongated, strip-shaped webbing belt used for application to a body of a vehicle occupant riding in a vehicle. The webbing retractor has: a frame in which a pair of leg plates, which are disposed so as to face one another, are connected by a back plate so as to be integral; a spool which is disposed between the pair of leg plates, one end of the webbing belt being anchored to the spool; a driving mechanism which is disposed between the pair of leg plates and has an output shaft and which is for rotating the spool in at least a take-up direction; and a clutch disposed between the pair of leg plates, transmitting rotation of the output shaft to the spool. Because a motor and gears can be disposed between the leg plates of the frame, the webbing retractor can be made compact.

Abstract: A webbing retractor has two torque transmitting routes for taking-up, such that rapid and reliable taking-up, and gentle taking-up are possible. When an engaging claw of a pawl restricts rotation of a ratchet plate, due to planetary gears rotating around a sun gear, rotation is transmitted from a drive gear to a carrier plate. On the other hand, when restriction of rotation of the ratchet plate is released, a clutch spring tightens around a tube portion of the carrier plate while rotation of the drive gear pulls one peripheral direction end of the clutch spring in a direction of rotation thereof. Frictional resistance between the tube portion and the clutch spring is increased, and rotation is transmitted from the drive gear to the carrier plate.

Abstract: A plate spring urges a base of a buckle device toward an anchor insertion opening side with respect to an anchor plate. Provided that urging force of the plate spring exceeds urging force of a spiral spring, the base is held, by the urging force of the plate spring, at a position at which a rivet contacts an insertion direction side end portion of a long hole. However, when the urging force of the spiral spring exceeds the urging force of the plate spring due to, in order to attach a child seat, pulling out of a webbing belt more than at a time when a body is to be restrained, the base moves against the urging force of the plate spring, and the plate spring pushes a transfer rod. Due to this pushing force being detected by a semiconductor diffusion strain gauge, it can be detected that the child seat is attached on a seat.

Abstract: In a webbing winding device, when an external gear of a clutch receives driving force of a motor and rotates in a winding direction, a pressing portion of an inertial plate pushes a pawl and meshes the pawl with outward teeth of an adaptor. Consequently, the winding shaft rotates in the winding direction. When the external gear receives rotating force of the motor and rotates in a drawing out direction, another pushing portion of the inertial plate pushes another pawl and meshes the pawl with the outward teeth of the adapter. Consequently, the winding shaft rotates in the drawing out direction. Thus, by providing these pawls, in this webbing winding device it is possible to transmit both forward-rotation and reverse-rotation of the motor for rotating the winding shaft.

Abstract: A mechanism of a webbing retractor which can instantaneously apply driving force of a motor to a spool. At a base plate of a prime mover which is driven to rotate, two pawls are disposed at opposing positions at an outer side of an adapter connected to a take-up shaft of a webbing. The adapter includes a plurality of external teeth being formed along a periphery thereof at uniform intervals, a total number of which is an odd number. Accordingly, in a state in which both of the pawls contact the adapter, even if one of the pawls abuts an addendum of a tooth formed at an outer peripheral surface of the adapter, the other pawl does not abut an addendum of a tooth. One of the pawls quickly meshes with the adapter and rotates the adapter.

Abstract: A webbing retractor which, by causing relative rotation between a prime mover rotating body and a rotating disc, connects the prime mover rotating body and a driven shaft which is connected to a take-up shaft of a webbing belt. A planet gear is pivotally supported at a plate having a braking piece and meshes with a sun gear. The plate is supported so as to be swingable around the sun gear. When the sun gear is driven to rotate at greater than a predetermined speed, the planet gear begins to circle around the sun gear against urging force of a spring attached to the plate, and makes the plate rotate such that the braking piece slidingly contacts the friction ring. Due to this braking, the rotating disc connected to the friction ring rotates relative to the prime mover rotating body.

Abstract: A webbing winding device in which a breadth dimension of a torque limiter is less than an axial direction dimension of an external gear. A rotation disc, the torque limiter or the like is wholly disposed, along a radial direction of the external gear, between the external gear and a peripheral wall of a baseplate. Further, members such as pawls, a rotation disc and the like are disposed, along a radial direction of the peripheral wall, between the peripheral wall and an adaptor, and these members are accommodated at an inner side of the external gear. Consequently, a thickness dimension (axial direction dimension) of a clutch is practically the same as an axial direction dimension of the external gear, and this is extremely thin.

Abstract: A plate spring urges a base of a buckle device toward an anchor insertion opening side with respect to an anchor plate. Provided that urging force of the plate spring exceeds urging force of a spiral spring, the base is held, by the urging force of the plate spring, at a position at which a rivet contacts an insertion direction side end portion of a long hole. However, when the urging force of the spiral spring exceeds the urging force of the plate spring due to, in order to attach a child seat, pulling out of a webbing belt more than at a time when a body is to be restrained, the base moves against the urging force of the plate spring, and the plate spring pushes a transfer rod. Due to this pushing force being detected by a semiconductor diffusion strain gauge, it can be detected that the child seat is attached on a seat.

Abstract: A steering wheel which has a ring shaped rim and is connected to a steering shaft of a vehicle via a hub, comprising a supporting member which is formed independently of the rim and the hub, is connected to the rim for supporting the same from inside, and can deform by a load at a predetermined value or more from the vehicle occupant side of the vehicle. Accordingly, in the steering wheel, when kinetic energy from the body of the vehicle occupant due to inertia at the time of a rapid deceleration of the vehicle acts on the steering wheel, and presses the rim of the steering wheel by a pressing force (a load) at a predetermined value or more, the supporting member for supporting the rim from inside thereby deforms. As a result, kinetic energy of the body of the vehicle occupant due to inertia at the time of the rapid deceleration of the vehicle can be absorbed.

Abstract: The present invention provides an air bag apparatus in which an inflator is set to be extended in a predetermined use position with no need to make the inflator large. A bag body of the air bag apparatus in a retracted state is disposed along a curved portion of the vehicle, a long strap is disposed within the bag body, and one end portion of the bag body and one end portion of the strap are fixed to the vehicle. In this structure, the other end of the strap is drawn by the activation of an inflator module so as to extend along the curved portion of the vehicle, and, further, gas is injected into the internal space of the bag body which is limited in motion by the strap so as to inflate and expand.

Abstract: An air bag apparatus provided at a seat back for a vehicle body has an inflator which has a substantially cylindrical configuration. The inflator is accommodated within a bag body which is expanded due to the gas ejected from the inflator. The inflator is disposed at the seat back such that the longitudinal direction of the inflator is directed along the height direction of the seat back. Accordingly, the air bag apparatus can be made compact in the thickness direction of the seat back.

Abstract: An air bag apparatus having a bag body inflated due to gas generated at the time of a sudden deceleration of a vehicle;a plate for holding the bag body;an oblong hole formed at a portion of the bag body where the bag body is not inflated;a rivet inserted into the oblong hole; anda pressing piece for holding the bag body via the rivet between the bag body and the plate in a state in which the bag body is not inflated when the vehicle is running at an ordinary state and for pressing the bag body so as to allow the bag body to be inflated when the vehicle suddenly decelerates. As a result, the bag body is moved along the longitudinal direction of the oblong hole when the vehicle suddenly decelerates, allowing the bag body to be inflated.

Abstract: An air bag apparatus in which a plurality of insertion portions are formed in a connecting member for fixing an inflator to a supporting member. A plurality of bolts are inserted into the plurality of insertion portions. When the plurality of bolts move in a direction of insertion thereof, the inflator is released from a state of being fixed to the supporting member. The air bag apparatus also includes a stress concentrating portion which easily deforms due to force, which is applied to the supporting member from an exterior, concentrating at the stress concentrating portion.

Abstract: An air bag cover structure comprising an air bag cover main body and an insert member. The air bag cover main body has an upper wall portion, a bag body which inflates toward a vehicle occupant when a vehicle suddenly decelerates being accommodated between the upper wall portion and a base plate, the upper wall portion being pushed by the bag body, which is expanding, so that the upper wall portion unfolds, and the air bag cover main body having a side wall portion which includes a center of unfolding of the upper wall portion when the upper wall portion unfolds.

Abstract: An insert plate is formed by a base portion, a coupling portion and a mesh material. Notches are formed on both sides of a connecting position at which the coupling portion and the base portion are connected. Accordingly, a line which connects bottoms of the respective notches is defined as a position of a center of unfolding of an unfolding portion of an air bag cover. Since a plurality of slits are formed in the coupling portion to weaken the coupling portion, the unfolding portion can be reliably unfolded about the line for which connects the bottoms of the respective notches. Further, ends of adjacent slits are staggered to prevent a crack from spreading along the entire coupling portion even if the coupling portion is cracked.