Abstract: A buckle assembly includes a first buckle, a second buckle, an operating portion, a locking component and a resilient portion. The first buckle includes an inserting end whereon an engaging portion is formed. An installation slot is formed on the second buckle for receiving the inserting end. The operating portion is disposed on the second buckle, and the locking component is fixedly connected to the operating portion. The locking component can be locked with or released from the engaging portion. The resilient portion is biased to separate the inserting end from the installation slot. The operating portion is operated to drive the locking component to release from the engaging portion. The inserting end can be separated from the installation slot by the resilient portion, so as to unlock the first buckle and the second buckle. The buckle assembly has advantages of easy operation and simplified structure.

Abstract: A safety belt buckle assembly includes a base, two combination pieces, and a locking member. The base has a mounting section, a belt passage section, a receiving slot, a connecting portion, and an insertion opening. The combination pieces are located at two sides of the receiving slot. Each of the combination pieces has a shaft receiving groove and an insertion hole. A shaft is mounted in the shaft receiving groove of each of the combination pieces and extends through a shaft hole of the locking member. Each of the combination pieces is provided with a resting member, an elastic member, and a covering member mounted in the insertion hole respectively. The locking member is pivotally mounted on the base and has a locking portion locked by the resting member of each of the combination pieces.

Abstract: A bracket assembly four securing a hydraulic jack in a vehicle. The bracket assembly including a base and two support walls opposite each other and extending outwardly from the base to support the hydraulic jack. The assembly includes a base band having a first end and a second end. The base band is disposed between the two support walls and is connected to the base. A first strap partially made from sheet metal has a fixed end and a free end with the fixed end of the first strap pivotably connected to a first end of the base band. The free end thereof detachably coupled to the second end of the base band via a locking device. The first strap and the base band secures the hydraulic jack on the two support walls.

Abstract: A seatbelt buckling device and system includes a buckle and a latch plate. The latch plate includes a pair of fingers that extend from a base portion. The buckle includes buckle housing that defines a slot that is configured to receive the fingers of the latch plate. The buckle also includes a blocking member disposed in the slot that splits the slot into first and second slot portions. The first and second slot portions are sized to receive the fingers. The blocking member restricts debris from entering a cavity of the buckle housing. The buckle further includes a depressible button for releasing the latch plate. The blocking member is arranged as a blockout portion integrated into the button or an ejector protrusion extending from an ejector disposed within the buckle.

Abstract: Latching mechanisms in multiple embodiments connect clamshell type couplers comprising a pair of arcuate coupling halves joined at a hinge. One embodiment includes a biased catch lever that engages a corresponding latch plate. Another embodiment includes a plurality of latching extensions that engage an opposing latching housing, along with biased locking buttons for selectively locking the mechanism. Another embodiment includes dual rotatable latching arms for interconnecting the coupling halves, each arm having a latching cam for selectively locking the mechanism. Another embodiment includes a rotatable latching arm and a receiving bracket for receiving the latching arm for selectively locking the mechanism. Another embodiment includes an over center hinge mechanism including three cooperating and rotatable latch plates. Another embodiment includes cooperating cassette mechanisms, each having connector extensions for connecting the cassette mechanisms to one another for selectively locking the mechanism.

Abstract: Foreign objects that have entered inside an insertion body are suppressed from reaching a detector side. In a buckle device, when a tongue plate is attached, an ejector slides downwards inside a buckle body, opening a through hole in a partitioning wall of a lower cover at the upper side. A main body portion of a slider member of a buckle switch is inserted into the through hole, closing off a portion of the through hole that has been opened by the ejector. Hence it is suppressed that foreign objects discharged through an insertion through hole in the buckle body to outside the buckle body pass through the through hole and reach the buckle switch side further than the partitioning wall.

Abstract: A seat belt buckle device in which the jumping or roll-over height of a counterweight is decreased allowing the seat belt buckle device to be reduced in size. The seat belt buckle device includes an outer case into which a tongue plate is inserted, a latch member that latches the tongue plate, a slideable release button, and a counterweight that resists sliding of the release button. The counterweight includes a shaft that engages a bearing groove formed in the release button and receives the force that rotates the counterweight due to the sliding of the release button. The rotating shaft has a recessed portion in its outer circumferential surface with this portion being configured to come into contact with the bearing groove of the release button when the release button slides into the outer case.

Abstract: A switch-equipped buckle device capable of accurately detecting an attachment-detachment state of a tongue plate by mounting fixed contacts immovably therein. The switch-equipped buckle device has, inside a buckle body, a slide switch that detects a state of attachment of the tongue plate according to the sliding position of an ejector. A slider of the slide switch is integrated with the ejector, and three fixed contacts of the slide switch are integrated with a lower case by insert molding.

Abstract: A barrier may be configured to maintain a fixed position with respect to a seat, the barrier separating a first space from a second space, a seatbelt buckle may be configured to maintain a fixed position with respect to the barrier in the second space, the buckle includes an opening to receive a seatbelt tongue and a release button to release the tongue from the buckle, the barrier may include a slot having dimensions selected to permit passage of the tongue from the first space into the opening and prevent an object from passing through the slot to operate the release button. A force-transfer-structure, coupled between the release button and a solenoid may transfer a force exerted by the solenoid to the release button, where the buckle and force-transfer-structure maintain operational alignment therebetween. A second structure can operate the release button in event that the solenoid is inoperable.

Abstract: A quick release fastener for an end fitting of a safety belt having spaced apart first and second frame, a lockable insert tongue insertable between the frame plates, and a locking element moveable between a locking position in which the insert tongue is locked between the frame plates, and a release position. A locking element has at least two anchor surfaces facing one another, which at least form the stop at one outer face of the frame plates or of the insert tongue. In this way, a shockproof quick release fastener is provided which can be released without a special tool.

Abstract: A buckle includes a case connected to a restraint system lower belt. A coupling mechanism releasably engages tongue-like coupling elements connected to respective upper belts. An indicator indicates correct belt tensioning and has a visual symbol visible through openings in the case. The indicator moves in the case between a first position in which the visual symbol is not visible, for loose belts, and a second position in which the visual symbol is visible, for correctly tensioned belts. First springs urge the indicator towards the first position. A locking element in the case connects to an end of the lower belt. Second springs between the case and the locking element are resiliently deformed from tension on the lower belt. The locking element cooperates with the indicator so that when the indicator is in the second position, it is locked.

Abstract: Personal restraint systems with buckle assemblies for use in vehicles are disclosed herein. In one embodiment, a personal restraint system includes a connector configured to be coupled to a web. The restraint system also includes a buckle assembly configured to releasably retain the connector. In this embodiment, the buckle assembly includes a frame having a locking feature configured to engage a tongue of the connector. The buckle assembly also includes a locking member movably positioned adjacent to the frame that retains the tongue in a locked position. The buckle assembly further includes an actuator that can be actuated by a user to move the tongue out of the locked position.

Abstract: When a pretensioner is activated, a buckle main body experiences abrupt acceleration in a direction toward webbing. An inertial amass body of a stopper member is then rotated toward a frame member against an urging force of a torsion spring urged through a lever member. Further, the lever member abutting on the stopper member is also rotated toward the frame member, making each projecting piece face each abutment portion of a slide button. Further, when the slide button is slidingly moved against an urging force of a button spring, each abutment portion makes contact with each projecting piece of the lever member, stopping the slide movement of the slide button. Thus, unintentional disengagement between a latch and a tongue plate can be prevented.

Abstract: A frame member, which is approximately U-shaped in side view, has an ejector having elastic locking pieces whose tips are configured to move along long holes formed in an upper plate, mounted thereon. A permanent magnet is mounted on a slider member, at the end portion closer to a Hall IC switch. Pairs of elastic engagement pieces are inserted through the long holes respectively, and engaged with engagement portions provided at the tips of elastic engagement pieces of the ejector respectively and thus assembled. In a base member formed approximately rectangular-frame-shaped in plan view, the Hall IC switch is fitted on a Hall IC switch supporting extension, extended approximately perpendicularly outward from an end portion closer to the frame member of an outer plate positioned adjacent to the permanent magnet.

Abstract: A belt lock for a seat belt system includes a locking mechanism arranged in a belt lock housing formed from two housing shells for an inserted belt tongue. The locking mechanism has an axially movable component that changes its location from a first end position into a second end position when the locking mechanism is actuated. The locking mechanism is also equipped with a switch arrangement that has at least one fixed contact part and one switching contact part that can move relative to it and on which, in an end position of the component that changes its location, the component acts. The switching contact part is configured as a clamp-shaped elastic sheet part with two axially running side braces that are provided with knee-like bends that, in an end position of the axially movable component, are mechanically exposed to pressure by the component.

Abstract: A buckle assembly includes a first plate and a second plate defining a gap therebetween. A button assembly defines a slot aligned with the gap, and is coupled to the first plate and the second plate for movement along a longitudinal axis of the first plate. The button assembly includes a door transversely moveable relative to the longitudinal axis between a closed position covering the slot and a retracted position spaced from the slot. The door includes an angled ledge, that directs fluid through at least one aperture in a sidewall of the button assembly when the door is in the closed position. A block is disposed within the gap. The first plate and the second plate define undulations extending along the longitudinal axis and into the gap. The block mates with the undulation in the first plate and the second plate to fill the gap.

Abstract: An improved seat belt buckle assembly (10) for use with a tongue (2) of a seat belt during use, locking the latch (20) and control lever (40) in the unlatched position, but when the buckle is latched and exposed to a rapid deceleration a mass (60) slides compressing a lower spring (52) into the frame (12) moving the mass (60) to occupy the space directly under stop surfaces (45) of control lever arms (42, 43) of a control lever (40) blocking downward movement and preventing a locking bar (18) from leaving a horizontal portion of L-shaped slots (9) preventing movement of the latch (20) into the unlatched position. The mass (60) is preferably attached to an ejector (30), the ejector (30) fits into a slot (62) in the mass (60) and extends into a pair of horizontal slots (31) on the frame, one horizontal slot (31) being on each vertical side (6, 7) of the frame (12). The ejector (30) secures the mass (60) in the frame (12) limiting the mass (60) to horizontal forward and rearward sliding movements.

Abstract: A shockproof device installed to a seatbelt buckle, which is provided in an automobile, airplane, etc, fastened around a seat to keep a passenger safely secured, is installed behind a release button and lock pin, to prevent the release button from being unexpectedly released when the release button is moved in a non-release direction. Even when the release button and lock pin are moved in a release direction, on the basis of a rotation angular velocity of the inertia lever rather than a rotation torque thereof, surface contact between the lock pin and the inertia lever is accomplished and simultaneously, owing to an anti-rotation configuration thereof, the inertia lever reliably prevents unexpected disengagement between the tongue plate and the buckle under the influence of any magnitude of inertial force.

Abstract: A buckling device for safety belts includes a buckle made of metal material and bent to form a projected holder. A wider segment of the holder is used to insert a side of the safety belt to the buckle. On each of two sides of a narrower segment of the holder is mounted a second side plate. Between two second side plates is defined a locking unit by using a shank. On an upper rim of the second side plate is a recess. The locking unit includes an engagement member in which a rotary member, a fixing piece, a compression spring, a mounting member, and a torsion spring are received. A fastening member includes a bottom sheet, with a wider segment thereof being used to insert another side of the safety belt. The fastening member further includes a retaining pore secured on a narrower segment thereof.

Abstract: A buckle includes two pawls engageable by a tongue. A single spring controls the position of the pawls. The buckle has a manual primary release mode of operation. The buckle also has a secondary release mode of operation, in which the spring acts as a secondary release member for the pawls. This is actuated by pulling force exerted by a single point release lanyard of a quick release vest.

Abstract: A buckle device includes a switch having a Hall element which outputs a signal in accordance with a magnitude of a magnetic flux density, a magnet which applies a magnetic field to the Hall element, and a shielding plate which is attached to an ejector so as to change the magnitude of the magnetic flux density transmitted from the magnet to the Hall element in accordance with a position of the ejector. The Hall element and the magnet are magnetically shielded by at least a frame and a latch member which are formed of a magnetic material.

Abstract: A synthetic-resin made and single-peace structured slide adjuster in which a buckle section has an appearance not so visible. In the slide adjuster for a belt and a buckle, an engagement claw of the buckle is engaged in an engagement groove having a form like saw teeth formed on an external surface of the belt. In the engaged state the belt can move forward but can not move backward. The buckle comprises a buckle body having a bottom plate and a ceiling frame opposite to each other and two side plates for connection between the bottom plate and the ceiling frame and also having an internal space for insertion of the belt; and an operating plate provided in the horizontal posture inside the ceiling frame and having an engagement claw provided on a bottom surface of an end portion thereof and capable of being engaged in the engagement groove of the belt and also having a pressed section provided at another end portion thereof for releasing the engagement.

Abstract: A seat belt buckle, comprising: a frame portion; a release button slidably mounted to the frame portion for movement between a first position and a second position; an inertia locking device rotatably mounted to the frame portion for movement between a blocking position and an unblocking position, the inertia locking device being configured to make contact with a cam surface of the release button when the inertia locking device is in the blocking position and slidable movement of the release button with respect to the frame portion is prevented when the inertia locking device is in the blocking position and the inertia locking device contacts the cam surface of the release button; and a biasing member for providing a biasing force for biasing the inertia locking device into the unblocking position, the inertia locking device being rotated into the blocking position when the biasing force of the biasing member is overcome.

Abstract: A seat belt buckle for use with a tongue of a seat belt, the seat belt buckle comprising: a frame portion; a latch being movably mounted to the frame portion for movement between a first position and a second position, the latch being configured to engage a portion of the tongue as the latch moves from the first position to the second position; an ejector being slidably mounted to the frame portion for movement between a locking position and a release position, wherein movement toward the release position causes an opening force to be applied to the latch in order to move the latch from the second position towards the first position, wherein movement of the ejector towards the release position is caused by movement of a release button movably mounted to the seat belt buckle; an inertia locking device rotatably mounted to the release button for movement between a blocking position and an unblocking position, the inertia locking device being configured for rotation in a plane substantially parallel to a plane o

Abstract: A buckle device is provided with a lock plate that engages with a tongue plate that is inserted into the device body and that holds the tongue plate inside the device body, and a lock member that engages with the lock plate and prevents the lock plate from moving to a released position, and the lock member has a body portion and a shaft that supports the body portion within the device body. The body portion of the lock member is formed from a sintered metal, and the shaft is formed from a metal and is integrally press fit into the body portion. The strength of the shaft, which receives the load of the body portion, is secured and at the same time it is possible to achieve miniaturization and weight securement of the body portion.

Abstract: The present invention provides a buckle and tongue combination for restraining an occupant in a seat, the buckle and tongue combination.

Abstract: A buckle device including a lock bar pushed by a release button for moving to a second position allowing rotation in a direction to release the engagement of a hook member, and a lock member rotated by a release button toward an unlock position at the time of releasing operation of a tongue plate. When the lock bar is butted against a first engagement part where the lock member is at a lock position, the lock member is rotated toward and held at the lock position, and a second engagement part enters a movement area of the lock bar, while an inertial force of the tongue plate in the direction of insertion thereof is exerted at a value exceeding a predetermined value, the release button is butted against a third engagement part to prevent the lock member from being rotated toward the unlock position to hold the lock position.

Abstract: A buckle device includes a switch having a Hall element which outputs a signal in accordance with a magnitude of a magnetic flux density, a magnet which applies a magnetic field to the Hall element, and a shielding plate which is attached to an ejector so as to change the magnitude of the magnetic flux density transmitted from the magnet to the Hall element in accordance with a position of the ejector. The Hall element and the magnet are magnetically shielded by at least a frame and a latch member which are formed of a magnetic material.

Abstract: A quick release buckle assembly having a housing, two cams, a knurl bar, and two springs. Each spring is operatively arranged to engage both a respective cam and the knurl bar. The housing includes integral bearing walls for the cams.

Abstract: A seat belt buckle for use with a tongue of a seat belt includes a latch that engages the tongue, and a release bar that releases the latch. An inertia locking device mounted to a frame portion is normally biased in an unlocking position and rotates to a locking position to prevent movement of the release bar into the release position when the seat belt buckle is subjected to a force greater than the biasing force.

Abstract: A buckle that is compact in a longitudinal direction and uses an unlatching force that may be effectively applied to a latch member when releasing a tongue from a buckle. The buckle is configured so that as an operation button is manipulated in the unlatching direction from a state in which a tongue and a latching portion of a latch member are latched, the slider moves so that the inclined face of a pressed portion of the slider comes in contact with the inclined face of a pressing portion of an ejector and presses the ejector. Then, the ejector is spaced from the tongue and the biasing force of an ejector spring is effectively applied to the latch member via the ejector and the slider in the unlatching direction. An unlatching force is thereby applied to the latch member so that the latch member pivots in the unlatching direction, causing release of the tongue.

Abstract: A buckle device includes a buckle body that includes a bottom plate and a pair of side walls with a tongue plate being inserted and retained between the side walls, and a release button that includes an operation portion that is push-operated along the insertion direction to release the retention of the tongue plate. Elongated holes along the insertion direction of the tongue plate are formed in the pair of side walls of the buckle body. The release button also includes a pair of arm portions that extend in the insertion direction from both width-direction ends of the operation portion, a pair of extension portions that have a predetermined elasticity and extend from width-direction ends of the pair of arm portions toward the bottom plate, and pawl portions that protrude from ends of the pair of extension portions toward the side walls and movably fit into the elongated holes.

Abstract: A buckle device capable of reducing an impact noise generated when a tongue plate (2) is inserted and eliminating a coil spring member energizing a release button (50) and a lock pin holder so as to simplify a structure, wherein a lock bar (30) has both end parts inserted into slots (16) and is mounted on a pair of side plate parts (12), both end parts of the lock bar (30) are engaged with a pair of guide grooves (54) in a pair of guide wall parts (52) of a synthetic resin release button (50) and, when the tongue plate (2) is inserted, the lock bar (30) is moved rapidly to the front end part of the slots (16) and, in this case, the end parts of the lock bar (30) are supported on a supporting part (55) at the end of the guide groove (54), not on the end of the slots (16).

Abstract: A shock-proof device disposed in a buckle includes at least a latch member for engaging a tongue so as to latch the tongue; a release button for releasing the tongue from the latch member; and an inertia lever with a rotation shaft rotatably arranged for preventing the release button from moving at least in a release direction of the release button by abutting against the release button. The shock-proof device further includes torque-difference generating mechanism for generating a torque difference between a first torque and a second torque. The first torque is applied to the inertia lever when the inertial force is applied to the release button and the inertia lever in the release direction of the release button. The second torque is applied to the inertia lever when the inertial force is applied to the release button and the inertia lever in the non-release direction of the release button.

Abstract: The invention relates to an actuator, which is used in a belt latch mechanism of restraint systems in motor vehicles and which indicates the proper locking of the tongue of the safety belt when the tongue is inserted into the belt latch mechanism. The actuator is provided in the form of a double-contact actuator, whereby the contact steel plates are arranged inside a contact space that is closed at the top, and the contact can be actuated by a slide by moving this slide into a channel situated to the side of the inner space of the housing.

Abstract: A buckle device including: a device main body into which is inserted a tongue plate provided at a webbing belt; a locking mechanism having a latch which is provided within the device main body so as to be engageable with the tongue plate when the tongue plate is inserted in the device main body, the locking mechanism restricting pulling-out of the tongue plate; a first detecting mechanism detecting the tongue plate which has been inserted in the device main body, and outputting a first detection signal; a second detecting mechanism detecting a position of the latch, and outputting a second detection signal; and a judging mechanism connected to the first detecting mechanism and the second detecting mechanism.

Abstract: A seat belt tension sensor assembly includes a housing, a slider slidably received within the housing, wherein the slider is configured for movement between a first position and a second position within the housing, and a first and second magnet associated with the slider for slidable movement therewith. The first and the second magnets are positioned side by side with opposite polarization. A hall effect device is fixed relative to the housing and protrudes between the first and the second magnets when the slider is in the second position. The hall effect device is configured to produce an output signal, the output signal being indicative of a seat belt tension of a seat belt as applied to the sensor assembly. A biasing member provides an urging force to the slider, the urging force urging the slider into the first position.

Abstract: A buckle device capable of reducing an impact noise generated when a tongue plate (2) is inserted and eliminating a coil spring member energizing a release button (50) and a lock pin holder so as to simplify a structure, wherein a lock bar (30) has both end parts inserted into slots (16) and is mounted on a pair of side plate parts (12), both end parts of the lock bar (30) are engaged with a pair of guide grooves (54) in a pair of guide wall parts (52) of a synthetic resin release button (50) and, when the tongue plate (2) is inserted, the lock bar (30) is moved rapidly to the front end part of the slots (16) and, in this case, the end parts of the lock bar (30) are supported on a supporting part (55) at the end of the guide groove (54), not on the end of the slots (16).

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: Disclosed is a seat belt buckle. The seat belt buckle comprises a body frame; a release button slidably coupled to the body frame for unlatching a seat belt tongue from the seat belt buckle; a locking lever capable of being pivotally rotated about wings by a predetermined angle; a slider for supporting and fixing the locking lever; and an ejector for pushing the tongue in a longitudinal direction which is a lengthwise direction of the body frame. The body frame has an arch-shaped supporting beam which is integrally formed with the body frame in a manner such that the supporting beam is erected in a vertical direction. The supporting beam serves to limit movement of the slider and increase structural rigidity of the seat belt buckle. The slider has a width which is greater than that of the body frame and possesses shock-absorbing means for increasing durability of the seat belt buckle. The slider is formed with inclined projections.

Abstract: A buckle device capable of reducing an impact noise generated when a tongue plate (2) is inserted and eliminating a coil spring member energizing a release button (50) and a lock pin holder so as to simplify a structure, wherein a lock bar (30) has both end parts inserted into slots (16) and is mounted on a pair of side plate parts (12), both end parts of the lock bar (30) are engaged with a pair of guide grooves (54) in a pair of guide wall parts (52) of a synthetic resin release button (50) and, when the tongue plate (2) is inserted, the lock bar (30) is moved rapidly to the front end part of the slots (16) and, in this case, the end parts of the lock bar (30) are supported on a supporting part (55) at the end of the guide groove (54), not on the end of the slots (16).

Abstract: A seat belt buckle is provided which can prevent ejection of a tongue plate caused by so-called reverse G without increasing release force for releasing a lock state. The seat belt buckle comprises a latch including a latch swinging end portion, a lock member including a lock swinging end portion, which is made to swing between a lock position, at which at the time of latching, the lock swinging end portion swings on the latch swinging end portion and engage to stop the latch swinging end portion in a state of pressing the latch swinging end portion toward engagement holes of a tongue plate and a base while pressing the same in a tongue plate insertion direction, thereby locking the latching, and a lock release position, a lock operation end portion for releasing the locking and a weight portion formed at the side of the lock swinging end portion.

Abstract: A seat belt buckle assembly including a seat belt buckle, the buckle including: a frame (26) defining a tongue-receiving slot (40); a latch plate (34) operably positioned in relation to the tongue-receiving slot and movable between an unlocked position and a locked position; a latch spring (64) for biasing the latch plate toward the locked position; an ejector mechanism (28) located behind the tongue-receiving slot and rearwardly movable in response to inward movement of a tongue; the ejector including a first portion engageable by the tongue and rearwardly movable to a position beyond the location of the latch plate and a second portion (80) slidably receiving and supporting the latch plate, the second portion remaining in contact with the latch plate, preventing the latch plate from moving to its locked position even when the first portion has moved beyond the latch plate.

Abstract: A closure for a seat belt comprises a release button shiftably mounted on a frame and cooperating with a latch which can be swiveled between a locking position and an opening position around a swiveling axis, and a blocking element that can assume a blocking position in which it blocks the latch in the locking position. The blocking element is mounted on the frame so as to pivot around an axis that passes through a center of gravity of the blocking element, so that it can be swiveled by the release button out of the blocking position into a release position.

Abstract: A seat restraint buckle assembly for a seat restraint system in a vehicle includes a rigid frame having an open forward end defining a passage to receive a latch plate. The seat restraint buckle assembly also includes a locking member operatively connected to the frame and pivotal between a latched position in which the locking member retains the latch plate within the passage and an unlatched position in which the locking member is held clear of the passage. The seat restraint buckle assembly includes a release button slidably mounted on the frame above the passage for longitudinal movement relative to the frame. The seat restraint buckle assembly further includes a blocking lever operatively connected to the frame and pivotal to contact the locking member and urging the locking member towards the latched position.

Abstract: A buckle is formed of a base having two side walls, a cover for accommodating and supporting the base, and having a tongue insertion hole formed at one end side of the two side walls of the base, and guide portions provided on each of the two side walls to protrude inwardly therefrom for leading a tongue to be inserted through the tongue insertion hole. The guide portions lead a tip of the tongue smoothly without blocking even when the tongue is inserted from the tongue insertion hole at a maximum slant posture defined by the tongue insertion hole relative to the buckle. The tongue can be smoothly inserted into the buckle to improve the manipulation feeling in inserting the tongue.

Abstract: A closure for a seat belt comprises a release button shiftably mounted on a frame and cooperating with a latch which can be swiveled between a locking position and an opening position around a swiveling axis, and a blocking element that can assume a blocking position in which it blocks the latch in the locking position. The blocking element is mounted on the frame so as to pivot around an axis that passes through a center of gravity of the blocking element, so that it can be swiveled by the release button out of the blocking position into a release position.

Abstract: In a buckle for a seat belt, lower ends of side walls of an operational button is positioned at a level lower than lower ends of guide portions of a base, and an upper surface of a portion of a lower cover defining a tongue-insertion opening is positioned at a level higher than an upper surface of a bottom of the base. Therefore, when a tongue is engaged with the buckle, an engaging portion of the tongue touches at least one of the side walls of the operational button made of resin, and the portion of the lower cover made of resin. Thus, the tongue is prevented from touching the guide portions and the bottom of the base made of metal, thereby preventing a noise due to the metal-to-metal contact when the tongue 3 is inserted into the buckle and engaged with the buckle. Therefore, a jar on an occupant's nerve when wearing the seat belt can be avoided.

Abstract: A buckle is provided with a non-contact buckle switch improved in durability to be securely operated. The non-contact buckle switch is switched by detecting a movement of one of an ejector, latch member and lock member of the buckle. The buckle switch includes a magnet and a Hall element for generating an electromotive force by a magnetic field of the magnet. One of the magnet and the Hall element is attached to a fixed member, and the other of the magnet and the Hall element is attached to one of the ejector, latch member and lock member.

Abstract: In a latched state of a buckle in which a tongue is engaged, an inertia lever member of a movement preventing device enters into a path of a lock pin. When the buckle is pulled by a buckle pretensioner in this state, the inertia lever member moves in the longitudinal direction, and pressed portions of the inertia lever member are held by a holding portion, so that the inertia lever member does not pivot and the levers are thus held in the path of the lock pin. At the end of pretensioning, the buckle is stopped. Since the moment produced by the inertia force acting on the center of gravity of mass body of the movement preventing device is larger than the moment produced by the inertia force of an operational button, the inertia lever member does not pivot, so that the inertia lever member can be held in the path of the lock pin. In the buckle, the inertia release can be effectively prevented with a simple structure.