Abstract: A buckle that can be manufactured at lower cost and is not unlocked even when a tongue plate is pushed in a locked state is obtained. An intermediate arm 60 is fixed to a lock spring 54 attached to a button 28. Facing walls 68 of leg portions 66 of the intermediate arm 60 face distal ends of horn pieces 26 of an ejector 22. In the locked state, a predetermined clearance 72 is formed between the facing walls 68 and protrusions 70 of the horn pieces 26. Accordingly, even if a tongue plate 20 is moved further in the direction of the arrow A, the facing walls 68 are not moved in the direction of the arrow A. The button 28 is not moved in an unlocking direction (the direction of the arrow A), either, and movement of a latch 48 in a disengaging direction (the direction opposite to the arrow B) is certainly prevented. As protrusions 38 can be formed in a small size, a buckle 10 is formed in a small size, and the buckle 10 can be manufactured at lower cost.

Abstract: A webbing retractor is disclosed. One end portion of a plate is fixed to a hollow cylindrical portion of a spool. An intermediate portion of the plate is entrained around an engaging pin and the like of a gear which can rotate relatively to the spool. A pawl provided at the gear abuts the plate, and is held at a position of non-engagement with stopper teeth against urging force of a coil spring. When the spool and the gear rotate relatively, the plate, whose widthwise dimension decreases toward a final end portion thereof, is taken-up onto the hollow cylindrical portion while being rubbed by the engaging pin and the like. A force limiter load in an energy absorbing process is decreased. The pawl, whose engagement with the plate is released, meshes with the stopper teeth such that rotation of the spool is impeded.

Abstract: An anti-theft system for a vehicle includes a first control unit (an ammobilizer) that makes a collation of a key code of an individual key inserted in an ignition key with a reference key code representative of an intrinsic key exclusive to an engine of the vehicle stored in an EEPROM, stores data of a result of the collation, agreement or disagreement between the two key codes, in a B/URAM, and provides a second control unit for controlling engine operation with an instruction, an approval instruction for permitting the engine to operate or a refusal instruction for prohibit the engine from operating, according to the collation result that is stored in the B/URAM.

Abstract: A buckle is provided in which a number of parts can be reduced and which can reliably maintain a latched state. When a tongue plate is engaged (latched) by a lock plate, presser members of a cam urged by a return spring abut receiving surfaces of the lock plate, and therefore, a latched state cannot be inadvertently released. Further, when the latched state is to be released, by pressing a release button, a claw is pushed such that a cam rotates, and the presser members separate from the receiving surfaces. As a result, the return spring is compressed, and due to elastic force of the return spring, the release button returns to its original position. In this way, because the return spring carries out both the operation of urging the cam and the operation of returning the release button to its original position, the number of parts is reduced.

Abstract: Shear ribs are formed at a bottom portion of a fitting hole of a spool for positioning a lock base, and respective end portions of the positioning portion abuts on a shear rib. Further, ribs are formed between the shear ribs. When the spool rotates in an unwinding direction with respect to the lock base, the end portion of the positioning portion deforms and breaks a shear rib, a rib and then another shear rib in that order. By being able to combine the effects of energy absorption due to deformation of the ribs with that of energy absorption due to twisting deformation of the torsion bar, a force limiter load immediately increases as soon as the spool starts to rotate.

Abstract: A webbing retractor having a force limiter mechanism whose energy absorption amount is large and which can reliably absorb energy. To this end, a wire is provided as an energy absorbing member having a fixing portion, a curved portion and a fit-in portion. When a spool rotates in a pull-out direction relative to a lock base, the fit-in portion is forcibly pulled-out from a fit-in hole and deformed while being strongly rubbed. Here, the fit-in portion deforms along an imaginary extended line of the curved portion. Thus, breaking of the wire due to concentration of shearing stress at one portion of the wire can be prevented. Deformation load which is applied to the wire can be reliably applied as force limiter load until a position of relative rotation of the spool with respect to the lock base which position is set in advance.

Abstract: In a webbing retractor having a pretensioner mechanism and a force limiter mechanism, when a drive member is rotated in one direction by the pretensioner mechanism, a cam plate is disposed at a sleeve side by an inner peripheral surface of a clutch ring. Thus, a roller engages with a sleeve, the sleeve is rotated integrally with the drive member, and a webbing is taken-up. When the sleeve is rotated in another direction by the force limiter mechanism, the cam plate is inserted into a recess portion of the clutch ring, and the cam plate is disposed at a side opposite to a sleeve side. Thus, rotation of the sleeve with respect to the drive member is permitted, and impeding of the pulling-out of the webbing can be prevented. Accordingly, a force limiter load can be determined by only a load required for deforming an energy absorbing member.

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 webbing take-up device and a vehicle are provided in which different force limiter loads can be selected at arbitrary times with a simple structure. A wire is inserted into a spool. One end portion of the wire is fixed to a lock base. Thus, when rotation of the lock base is impeded, a twisting load of a torsion bar and a drawing-through load of the wire are applied to a webbing as force limiter load. Further, a cutting gear is disposed between the spool and the lock base. When the cutting gear is rotated at an arbitrary time, the wire is cut. In this way, the force limiter load is reduced to only the twisting load of the torsion bar. As a result, different force limiter loads can be selected at arbitrary times with a simple structure.

Abstract: A webbing take-up device that can prevent unintended and unnecessary switching from an ELR mode to an ALR mode. In a webbing take-up device, a cam protrusion and a tongue portion are provided at a cam member that interlocks with a take-up shaft, and a breaking operational portion and an intermediate holding surface are provided at a disc control member. When a switch is made from the ELR mode to the ALR mode, unwinding and taking-up operations of the webbing are each performed twice in succession so that the webbing take-up device is switched to the ALR mode, in which an ALR pawl engages with an outer-tooth ratchet wheel of a locking wheel. Accordingly, unless the aforementioned switching is carried out by conscious volition of a vehicle occupant, unintended and unnecessary switching from the ELR mode to the ALR mode does not occur.

Abstract: Before mounting to an anchor plate, a holding block is connected by a plurality of connecting portions to a button so as to be formed integrally with the button. A pair of connecting portions among the plurality of connecting portions is comprised of a button-side connecting portion and a holding block-side connecting portion, and the button-side connecting portion and the holding block-side connecting portions are joined together by a minimum sectional area portion which intersects, at an angle of inclination of 45 degrees, a direction in which the button slides. The minimum sectional area portion is made substantially perpendicular to the direction of tensile stress acting during assembly, and therefore, a crack is formed in the minimum sectional area portion along the shortest possible length of the minimum sectional area portion when the above-described pair of connecting portions is broken.

Abstract: Wing portions of a slider forming a switch are elastically extended outwardly and inserted between an upper plate and a lower plate of a tongue plate in a state in which a cover is attached to a buckle main body. Therefore, the switch can be inserted into the cover through clearances and attached to the tongue plate.

Abstract: A resin composition which comprises about 40 to about 95% by weight of a heat-resistant resin having a heat deformation temperature of 100.degree. C. or higher under a stress of 1,820 KPa defined by ASTM D-648 and about 60 to about 5% by weight of spherical glass beads having an average particle diameter of about 10 to about 500 .mu.m, or which comprises about 40 to about 90% by weight of a heat-resistant resin having a heat deformation temperature of 100.degree. C. or higher under a stress of 1, 820 KPa defined by ASTM D-648, about 55 to about 5% by weight of spherical glass beads having an average particle diameter of about 10 to about 500 .mu.

Abstract: A molding compound which comprises phenol resin or polyphenylenesulfide resin, chopped strands of glass fibers and powdery glass fibers having a length of about 10 to about 200 .mu.m is used suitably for molding a resin stator having an insert molded or post-inserted metallic outer race.

Abstract: An air bag case is provided with a main plate and a side plate to form a case. The main plate forms an opposing portion including a space for accommodating an inflator and a bag body, and is curved in a substantially U-shaped form to form a curved portion. A pair of side plate are formed by bending both sides of the main plate in the inner direction. The pair of side plates respectively form crossing portions for joining side edges of the opposing side plates, and form an opening forming portion for forming an inflator containing opening in the vicinity of the curved portion.

Abstract: A safety device for preventing unexpected operation during installation of an ignition device. The ignition device includes a drive shaft which is movable while following up movement of an inertial mass when a vehicle rapidly decelerates and an ignition member is urged towards a detonator. A lock plate is provided so as to be movable between a first position where the lock plate contacts the drive shaft at a position on the side opposite to the inertial mass via the drive shaft, such that the drive shaft is inhibited from following up movement of the inertial mass when the ignition device is installed, and a second position where the lock plate is released from the drive shaft. The inertial mass, which serves as an acceleration sensor, contacts the drive shaft to activate the ignition member, and the drive shaft is disposed to be movable while following up the inertial movement of the inertial mass.

Abstract: A preloader characteristically comprises the following: a preloader sensor unit comprising an inertial member and an ignition member fixed to a detonator by the movement of the inertial member; in accommodating portion accommodating the preloader sensor unit; a supporting member in which the accommodating portion is installed by the rotation of the accommodating portion, where the accommodating portion is rotated around a direction of the fire of the ignition pin at an optional or predetermined interval of rotative angle from reference position; a display member which is provided on the external surface of the accommodating portion and has a specific positional relationship with the inertial member and displays the positional relationship with the inertial member; and positioning members respectively provided for the accommodating portion and the supporting member for positioning the accommodating portion to the supporting member in relation to the display of the display member.

Abstract: A preloader sensor which is applied to a webbing retractor for winding a webbing for constraining a vehicle passenger, onto a winding shaft in a stratified arrangement, in order to activate operation of a preloader for tightly holding each passenger with the webbing immediately upon instantaneous detection of rapid deceleration of vehicle speed.

Abstract: An air bag body to be mounted on a vehicle has a built-in acceleration sensor. A restriction apparatus prevents the acceleration sensor from activating before the air bag body is fixed to a vehicle. After the air bag body is fixed to a vehicle, an operator screws a press member in, and the press body directly comes in contact with the restriction apparatus, rotates the restriction apparatus, and makes the acceleration sensor operational. As the press member directly comes in contact with and rotates the restriction apparatus, the pressing force is transmitted without fail.

Abstract: A webbing lock device for a webbing retractor in which a takeup shaft is locked and prevented from rotating in a webbing drawing-out direction when the takeup shaft has rotated by a predetermined amount in the webbing drawing-out direction after meshing engagement between a lock wheel and a pawl lever. The webbing lock device is provided with a ratchet wheel which is disposed coaxially with the takeup shaft and has around an outer peripheral portion thereof external ratchet teeth capable of meshing with the pawl lever. The ratchet wheel is adapted to receive a rotating force of the takeup shaft in the webbing drawing-out direction via a frictional force when the takeup shaft rotates in the webbing drawing-out direction, while the ratchet wheel is rotated integrally with the takeup shaft by engaging with the takeup shaft when the takeup shaft rotates in a webbing taking-up direction.