Abstract: In a seat belt buckle a U-shaped main frame (1) has two side portions (7,8) and a tilting locking element (15) located between them to be engageable with a belt tongue (4) when inserted therein, a retaining member (27) being movable in L-shaped cut-outs (11,12) in the side portions between locking and unlocking positions in relation to the locking element (15) by action of the tongue or a release button respectively, and inertial rocking member (20) being pivotally carried by the locking element (15) and spring urged towards a position which locks the retaining member into its said locking position and is unresponsive to pretensioning action on the buckle.

Abstract: A buckle device is provided, for use with a seatbelt system of a vehicle, into which a tongue plate is inserted for engagements with a lock member, and which has in addition to the lock member with which the tongue plate engages when it is inserted into the buckle device to a predetermined depth, and which is urged at all times in the direction of engagement with the tongue plate, an ejector for urging said tongue plate in the direction of withdrawal from said buckle device, and a preventing member for preventing the lock member from moving into the insertion path of the tongue plate until the tongue plate reaches the predetermined engagement position.

Abstract: A buckle apparatus comprises a buckle body into which a tongue plate is inserted, and a lock plate with which the tongue plate is engaged and locked. The buckle body is provided with an opening through which a portion of the lock plate is passed in a condition of the tongue plate locked to the lock plate, so that when a load larger than a predetermined value is applied in a direction of withdrawal of the tongue plate in such locked condition, at least a portion of the lock plate is moved in the tongue plate withdrawal direction. Such portion of the lock plate is provided with a projection which is adapted to be brought into engagement with an edge of the opening by the movement of such portion, thereby inhibiting the movement of the lock plate in a direction to release the tongue plate-locked condition. Therefore, even if a load larger than a predetermined value is applied to the tongue plate in the locked condition, the tongue plate cannot be disengaged from the buckle apparatus.

Abstract: The base (46) of a release hook (22) is located between two side members (30, 32) of a hook guide (20). A first end of the hook base (46) carries a first slide pin (50) having end portions projecting into a two-part slot (38, 40) of the guide (20). The second end of the hook base (46) carries a second slide pin (52) having opposite end portions which are movable between the slot (38, 40) and a two-part notch (42, 44). A link (24) is pivotally connected at its first end to an arm (64), which arm (64) is a part of a rotatable member (10) and pivotally moves about a second axis (88). The second end of the link (24) is pivotally attached to the hook base (46) for pivotal movement about a third axis (106). When the second slide pin (52) is within the notch (42, 44), the release hook (22) is held against movement, and the link (24) holds the arm (64) and rotatable member (10) against rotation about a first axis (62). A release pin (24) is positioned within the hook throat (54).

Abstract: A buckle for a safety belt system provided with a belt pretensioner is secured by a blocking pawl against unintentional opening at the end of the pretensioning stroke. By the locking pawl the release button is arrested at the housing before it has reached the end of its lost motion path. The driving of the locking pawl is by the inertia forces acting with a certain leverage at the center of gravity thereof at the end of the pretensioning stroke.

Abstract: With a safety belt fastener for the take-up and latching of an insertion tongue having a housing and an insertion path for the insertion tongue, the insertion path being arranged in the housing and containing an ejector under spring action, having a latch guided in the fastener and cooperating with the tongue recess in the case of latching, the latch holding the insertion tongue in an associated recess of the fastener, and a spring-loaded shift key, guided at right angles to the movement plane of the latch, for the lifting of the latching device, the movement of which is composed of an unlatching stroke and a preceding idle stroke, simple anti-shock means are realized by providing in addition to the shift-key spring a further additional spring supported between a fastener part and the shift key, aligned in its spring force to oppose the insertion direction of the shift key and only active during the idle stroke of the shift key.

Abstract: A buckle for a safety belt of a vehicle, especially a motor vehicle, the locking member of which is designed as a cylindrical revolving body and which is located with its axis of rotation in the belt tongue entry path, the revolving body having a recess in alignment with the insertion paht and the locking member having a control arm operable by the ejector for the purpose of locking and which ensures that the locking membler has locked and unlocked position.

Abstract: A seat belt buckle has a spring biased ejector member and a slidable pushbutton member. A coil spring biases both the pushbutton member and the ejector member. A secure connection between the ejector member and the pushbutton member is provided in a vertically compact structure. Contact surfaces on the ejector member and contact surfaces on the pushbutton member are all contained vertically within the confines of a track along which those members slide horizontally in the buckle.

Abstract: The belt lock comprises a closing mechanism and at least one ejectable belt strap end piece, which is able to be inserted therein, and which has a tongue which is able to be locked with the mechanism. The mechanism consists of a U-shaped metal frame, of a locking member, mounted in its lateral recesses, for the locking of the tongue, of an ejector for the tongue, a locking member support and of a release button. In order to further simplify the belt lock and to be able to manufacture it more cheaply, the locking member is constructed as a component in the shape of a small plate, the lateral recesses in the metal frame for the mounting of the locking member consist of elongated holes, which extend parallel to the direction of movement of the tongue in the frame and are dimensioned such that the pins of the locking member are guided so as to be movable in the direction of movement of the tongue, but substantially free of play vertically thereto.

Abstract: A buckle device for use in vehicle seat belt system having a tongue plate and a buckle body into which the tongue plate is inserted for engagement therewith includes a lock member which is swung to engage the inserted tongue plate and is adapted to lock the tongue plate, a release button moved by the operation of a vehicle occupant to swing the lock member in an opposite direction, thereby cancelling engagement between the lock member and the tongue plate, and an emergency lock mechanism for holding the lock member in a state of engagement with the tongue plate when an inertial force acts in an operating direction of the release button. Accordingly, the disengagement between the tongue plate and the lock member due to the inertial force is prevented, and the state of engagement between the two members is maintained.

Abstract: A seat belt system has a plurality of seat belt units with buckle apparatuses each having a tongue plate and a buckle plate for receiving and engaging the tongue plate. The seat belt system includes a first tongue plate having a first insert portion, a first buckle body having a first ejector movable by the insertion of the first insert portion and a first lock plate operative in response to the movement of the first ejector and capable of locking the first insert portion, a second tongue plate having a second insert portion, and a second buckle body having a second ejector movable by the insertion of the second insert portion and a second lock plate operative in response to the movement of the second ejector and capable of locking the second insert portion. The first buckle body has a first insertion path with a restricted portion of a width smaller than that of the second insert portion.

Abstract: In a belt buckle for safety belts, particularly in motor vehicles, for receiving and locking an insertable tongue having a housing and, arranged therein, an insertion path for the insertable tongue, with the path containing a spring-loaded ejector, and having a locking element which is pivotably mounted in the buckle and, in the locked position, engages in the tongue recess and is secured in the locked position via a securing member movably mounted in the buckle, and having a slidable actuator for releasing the locking element, which is guided in the housing transversely with respect to the plane of movement of the locking element and which, to protect it from shock, cooperates with a counterweight guided in the housing, the intention is to simplify the construction of the buckle for the purpose of shock prevention and reduce the mass of the parts which cooperate in the event of acceleration of the buckle.

Abstract: A buckle device in which a lock plate is moved by an urging force to be brought into engagement with a tongue plate or, in the state of engagement with the tongue plate, it is moved against the urging force by the operation of a release button to be disengaged from the tongue plate. Stoppers are provided which can be selectively moved during engagement of the tongue plate between inhibition positions, at which they inhibit the above operation of the operation member and also inhibit the lock plate from moving in the direction of movement for disengaging from the tongue plate, and allowance positions at which they allow the above operation of the operation member and also allow the lock plate to disengage from the tongue plate. When maintained at the inhibition position, the stoppers prevent the operation of the operation member and disengagement of the lock plate and the tongue plate.

Abstract: The buckle intended to join a belt to an anchorage point consists, among other things, of a latch (10) and of a keeper which comprises a base (20), a lock (30), an ejector guide (40), an actuating button (50), preferably a protective covering (60) and, if necessary, a closure detector (80) and an illumination device (90).This buckle comprises operating and locking means (70) which cause the lock to cooperate with the button and with the base either to allow opening of the locked buckle when the latter is subjected to a tensile force less than a given limit or to ensure permanent locking of the locked buckle when the latter is subjected to a tensile force at least equal to a predetermined value and prevent opening thereof.Application to safety belts for automotive vehicles.

Abstract: A buckle for a seat belt system is disclosed. The buckle includes a buckle base, a buckle button provided movably in parallel with the length of the buckle base and defining in association with the buckle base a clearance through which an associated tongue plate may be inserted into the buckle, a cover, and a button spring provided between the cover and the buckle button for applying a spring force against the buckle button in a direction to push out the buckle button. The buckle button is provided with a tiltable member, which has a seat portion receiving an outer end portion of the button spring thereon and a suppressing portion projecting into the clearance from the seat portion.

Abstract: A buckle device with a switch for detecting tongue-lock comprises a base, a latch piece supported on the base so as to move between a tongue-lock position and a tongue-unlock position, a lock plate provided so as to move between an engaged position at which the latch piece remains stationary in the tongue-lock position and a disengaged position which permits movement from the tongue-lock position of the latchpiece, such that the lock plate moves to the engaged position following the movement of the latch piece to the tongue-lock position, a release button for setting the lock plate in the disengaged position; and a switch assembly for detecting whether the lock plate is located in the engaged position or not.

Abstract: A seat belt buckle 10, having a pivoted locking member 26 adapted to releasably engage with a cross-bar 34 of an apertured latch plate 24 insertable within a latch passage 22 in the seat belt buckle, includes a rigid frame 12 having an apertured rectangular base plate 14, upstanding side walls 16 extending from longitudinal edges of the base plate 14, and a fixed bar 18 extending across the width of the base plate 14, parallel to, and spaced apart from, the base plate, the fixed bar 18 being secured at each end thereof to a respective side wall 16.

Abstract: A seat belt buckle has a plastic outer body of a color and style suitable for the intended environment, with a formed steel inner frame having horizontally-spaced upturned sides having two parallel pairs of inturned flanges serving as crush inhibitors, release slide guides, and tongue receiver guides. An upturned frame front flange cooperates with the sides and flanges as a wrack resistor and tongue retainer. The body front has a trough-shaped entrance to admit a latchable tongue, one margin of the entrance being provided by the sloped front of an end-release operating slide. A removable slide front button is curved to assist finding for release. A pivoting latching pawl is spring-urged into latching position, and released by a cam on the slide, with a shallow ramp for ease of intentional release. A tongue ejector holds the pawl in unlatched position when the tongue is out of the buckle.

Abstract: A safety belt buckle has a slider having first and also second parts each adapted to engage and retain a locking member in a locking condition in which it engages a tongue inserted in the buckle. The slider is spring biassed to a position in which one part engages and retains the locking member and is movable against the spring bias to a second position to permit the locking member to move to release the tongue. The arrangement is such that if the buckle is subjected to a severe force, which moves the slider against the spring bias, the slider moves to a third position in which the second part engages and retains the locking member in the locking position.

Abstract: A seat belt buckle having a buckle frame and a pivotal latching member mounted therein includes an improved actuating system which locks the latching member and which assists in ejecting a tongue plate from the frame when the latch mechanism is in its open position. The actuating system includes a stirrup-like linkage including a cylindrical ejector member joined at each end to a pair of pivotally mounted arms. A locking cylinder also extends between the arms. A generally U-shaped retainer includes flat plate-like walls which are pinned to the pair of arms. The ejector member making up the central portion of the stirrup is mounted for sliding reciprocation in a slider member which is attached thereto with a snap-lock action. The slider member includes a sliding tail which reciprocates back and forth in the buckle frame.

Abstract: A buckle is constructed of a base, latch piece, holding member and release member. The base has a bottom wall and side walls defining substantially L-shaped holes. The latch piece is supported on the base rockingly between a tongue latching position and a tongue non-latching position. The holding member is received at both end portions in the holes displaceably between a holding position, where the end portions are in the horizontal portions of the corresponding holes so as to hold at the latching position the latch piece which has been in the latching position, and a non-holding position where the end portions are in the vertical portions of the corresponding holes so as to permit movement of the latch piece from the latching position. The release member is provided displaceably between a non-operated position and an operated position and adapted to bring the holding member to the non-holding position and the latch piece to the non-latching position when the release member assumes the operated position.

Abstract: A buckle is constructed of a tongue, a base, a latch means capable of selectively taking either a latching state, in which the tongue is connectable to the base, or a non-latching state in which the tongue is released from the base, an operation means for bringing the latch means from the latching state to the non-latching state, a casing defining at least tongue-inserting opening and operation-means operating opening, and an actuator means capable of taking a first state while the tongue is connected to the base by the latch means in its latching state or a second state while the tongue is released from the base. A smaller part of said actuator means is exposed outside the casing in the first state than in the second state.

Abstract: This buckle is characterized by a device stressing a locking member (5) towards its locking position and a device for ejecting a bolt consist of a first elastic element (20), one end of which intended to interact with the bolt when it is inserted or ejected from the buckle, and the other end of which bears against the first bearing surface of the locking member, and by a device stressing the locking member towards its release position consistent of a second elastic element (21), one end of which bears against the body (4) of the buckle and the other end of which bears against a second bearing surface of the locking member. The first and second bearing surfaces are formed opposite one another on either side of a tongue (13) of the locking member.

Abstract: A seat belt buckle comprises a pivoted latch plate biased to a latched position and kept in that position by a control member slidably carried on the latch plate and biased to a position in which blocking portions cover notches at the edges of the latch plate. Control projections on the sides of a channel-shaped frame are engaged by the blocking portions in the latched position but accept the notches in the latch plate when the control member is moved by a release button to uncover the notches. Cam surfaces on the frame sides coact with cam follower surfaces on the control member to lift the control member and latch plate when the release button is depressed. Anchor projections on the frame sides are received in the notches in the latch plate in the latched position and transfer loads from the latch plate to the frame.

Abstract: A fastening means for safety belts for cars or the like is especially intended for resisting the high G-forces to which the fastening system is subjected in a collision. Said fastening means essentially comprises a locking flap (2) being provided with a rivet (2c), a supporting lug (2a), and two hinged arms (2b) to be in contact with the turnable about the rear portion of a locking case member (5) shaped with two parallel plates to form an intermediate space (5f). Said parallel plates are provided with three through recesses, i.e. one securing hole (5b) for securing said fastening means in a car, one hole (5e) for receiving the supporting lug (2d) of locking flap (2), and a locking hole (5c) for guiding and receiving locking flap rivet (2c).

Abstract: A thermally actuated seat belt fastener includes a conventional latching mechanism having an automotive thermostat type of actuator within a release button that is pressed by a user to release the fastener. If the thermostat is subjected to a predetermined high temperature, an internal plunger extends from the interior of the button to automatically release the fastener, without depressing of the release button.

Abstract: A buckle for seat belts which comprises a buckle body and a tongue plate engageable with the buckle body when inserted thereinto through an opening formed in the front end of the buckle body, the buckle body being provided with: (a) a frame comprising a bottom plate above which a path for insertion and ejection of the tongue plate is defined and a pair of side plates, (b) an ejector being mounted slidably on the bottom plate and urged always toward the opening, (c) a hook plate being supported on the side plates of the frame and having a lock pawl, (d) a pair of control slits being formed in the side plates of the frame, each control slit forming a narrow portion in the front part and an upwardly enlarged portion in the rear part, (e) a release bar having both ends disposed in the control slits, and (f) a manual operation assembly for buckle for buckle release, characterized in that (i) the release bar is shaped in a flat rectangular form in cross section, (ii) a supporter therefor is positioned on the hook p

Abstract: This buckle comprises, housed in a casing (1), a body (4), a member for locking (5) a bolt, a sliding block (10) mounted in the body so as to be capable of travelling in the direction of travel of the bolt and which cooperates with a spring (12) for ejecting the bolt, another spring (16) pressing the locking member towards its position in which the bolt is locked, and a member for producing (6) unlocking for moving the locking member towards its position in which the bolt is unlocked. The sliding block (10) is mounted so that it can travel between a forward position, in which a first bearing surface of the locking member (5) bears against the sliding block (10), corresponding to the position in which the bolt is unlocked, and a rear position, in which the locking member has oscillated relative to the body so that a second bearing surface of the locking member bears against this sliding block, this rear position of the sliding block corresponding to the position in which the bolt is locked.

Abstract: This buckle comprises, housed in a casing (1), a body (4), a member for locking (5) a bolt, a sliding block (12) mounted in the said body so as to be capable of travelling in the direction of travel of the bolt and which cooperates with resilient means for ejecting the bolt, means pushing the locking member towards its position in which the bolt is locked, and means for producing (6) unlocking for moving the locking member towards its position in which the bolt is unlocked. This buckle is characterized in that the resilient means for ejecting the bolt and the means pushing the locking member (5) towards its locking position consist of a spring (14) inserted between the sliding block (12) and the locking member (5).

Abstract: This buckle, which is intended in particular for the safety belt of a motor vehicle, has a housing (1) inside which there is located a body (4) intended to be fixed to a retaining means integral with the vehicle, a locking member (5) intended to keep the latch in a locked position, and a lock release member (6). The locking member (5) is mounted inside the said body (4) so as to oscillate and be displaceable between a position where the said latch is locked and a position where the latter is released and has at its ends means intended to co-operate with stopping surfaces of the body (4) and of the latch via the action of a destabilizing device (16).

Abstract: A buckle apparatus for use in a seatbelt system for a vehicle designed to protect an occupant in an emergency situation of the vehicle includes a buckle body into which a tongue plate is inserted. A lock plate is moved in a direction orthogonal to the tongue plate inserting direction and is engaged with an opening formed in the tongue plate, and portions of the lock plate on both sides of its portion engaged with the tongue plate are supported by the buckle body, thereby reliably obtaining a sufficiently large tongue plate holding strength. When the force applied to the tongue plate such as to pull it out from the buckle apparatus is relatively small, a resilient member retains the lock plate, together with the tongue plate, in such a manner that they are separated from the engaging portions of the buckle body.

Abstract: A fastening means for a safety belt of a car or the like comprises an insert member secured to said belt, a locking opening in said insert member, a locking case member having an opening for receiving said insert member, a spring loaded locking member in said locking case member for cooperation by engagement with said locking opening and for keeping said insert member in the locking case member, a release member that is able to guide the locking means to release the insert member against a spring load, a blocking means for keeping said locking means in cooperating engagement with said locking opening, and an expeller for said insert member. The spring loaded locking means is a bolt mounted in the locking case member for displacement across an opening in the locking case member. On both sides of opening contact surface for bolt are provided in locking case member to hold it firmly in the direction of force of the safety belt.

Abstract: A two-stage latch type safety belt buckle is provided with a first latch member directly engaged with a tang and a second latch member for preventing the tang from being disengaged from the first latch member. The second latch member is a two-layer structure, and the first latch member partly extends between the two layers. The second latch member is brought into engagement with the first latch member in a wall portion connecting the two layers together to thereby lock the first latch member in a position in which it is engaged with a tang.

Abstract: Lock for safety belts, comprising a lock housing enclosing a lock mechanism having a release member for manual operation, and a member of lock tongues which can be inserted into the lock housing for co-operation with the lock mechanism. The lock mechanism comprises a number of lock plates one for each lock tongue, which are mounted in the lock housing for rotation about a common axis and each form an abutment for the associated lock tongue and a hook for retaining locking engagement with the lock tongue and are spring-biased to be engaged with the lock tongue against the spring bias when the lock tongue is inserted into the lock housing to be engaged with the abutment, an arresting element which can be actuated manually to be engaged with each lock plate to arrest temporarily the lock plate in the engaged position, and a latch member which is spring-biased to engage the lock plates when all lock plates are arrested in the engaged position, to retain permanently the lock plates in said position.

Abstract: A buckle apparatus for use in a seatbelt system is arranged such that when a tongue plate is inserted into a buckle body, the tongue plate retaining portion of a lock plate pivotally supported on one side of the tongue plate insertion passage extends through an opening formed in the tongue plate and projects out to the other side of the insertion passage so as to engage with a subsidiary lock plate. Accordingly, the lock plate which prevents the tongue plate from being undesirably pulled out is supported by the buckle body on both sides of the tongue plate and therefore can bear a large load. To release the tongue plate, the subsidiary lock plate is pivoted so as to disengage from the lock plate, which requires only a reduced force.

Abstract: In a safety belt for a car or the like, a buckle is provided to receive a tongue releasably. The buckle includes a latch member engageable with the tongue, a U-shaped base defining an opening in the direction of insertion of the tongue and supporting the latch member turnably, and a bridge secured to the lower end of the base and having engagement portions which when the tongue is in a state kept in engagement with the latch member, are kept in engagement with the tongue at two points. Owing to this structure, the tongue can be firmly held without play and the buckle can withstand large forces and moments applied thereto by way of the tongue.

Abstract: A buckle apparatus for use in a seatbelt system is arranged such that when the tongue plate of the seatbelt is inserted into the buckle body, the pawl of a lock plate is inserted into an opening formed in the tongue plate. Since the projecting end of the pawl is separated from the corresponding opening formed in the buckle body, a relatively small force can release the tongue plate from the buckle apparatus. However, when the force applied to the tongue plate for pulling it out from the buckle apparatus increases, a lock plate holder is deformed by virtue of this force. In consequence, the pawl engages with the opening of the buckle body, and retaining wings provided on the side of the lock plate remote from the pawl also engage with the corresponding portions of the buckle body. Accordingly, the lock plate is supported by the buckle body at two portions on both sides of the portion thereof which engages with the tongue plate, so that the lock plate can bear a large tongue plate pulling out force.

Abstract: A buckle fastener for a safety belt including a housing having a guiding channel for guiding a tongue into and from the housing, a latching member movable transversely to the insertion channel for selective engagement and disengagement with a recess formed in the tongue, a leaf spring member biasing the latching member into engagement with the recess in the tongue, and a pressure key slidably guided in the housing in a direction parallel to the guiding channel. The pressure key is provided with ramp means engaging the latching member for pushing the latching member out of engagement with the recess in the tongue when said pressure key is depressed. The leaf spring has one end secured to said pressure key and its opposed free end bearing on the latching member. The leaf spring moves simultaneously with the pressure key when it is depressed.

Abstract: A buckle for a safety belt, the buckle including a base plate with a guide channel for insertion and withdrawal of a tongue, a latching member movable in a guide member mounted on said base plate and cooperating with the tongue for selective engagement and disengagement of the tongue, and a pressure key slidably mounted on the base plate and movable in a direction parallel to said guiding channel between a rest position and a depressed position. The pressure key when moving to the depressed position moves the latching member to disengage the tongue. The pressure key is biased into its rest position by at least one leaf spring member having a first end secured on the guide member and a second, free end bearing on a surface portion of the pressure key.

Abstract: A device for tightening ski boots is described including a curved plate attached to the tongue of the ski boot, a threaded shank fixed to the plate and an operating knob for the shank, rotatably supported externally of the ski boot and provided with a nut screwed on to the threaded shank so as to permit gradual tightening or loosening. The nut is of the splitnut type which can be opened out, and the knob includes a device which, by opening the splitnut, allow the rapid release of the pressure on the tongue of the ski boot and, hence, on the instep of the wearer's foot.

Abstract: A seat belt latch buckle includes a buckle body that releasably accepts and latches a buckle tongue. The buckle body includes a frame, a latch plate having a latching projection and pivotable in the frame, a release member to release the tongue, and an ejector to eject the released tongue. A control member is slidable on the latch plate between first and second positions. In the first position the control member is engaged between a portion of frame and the latch plate to positively lock the latch plate in the latched position. The release member slides the control member to the second position, in which it no longer prevents the latch plate from moving to the release position, before it engages the latch plate to pivot it and release the tongue.

Abstract: A safety belt buckle wherein a conventional latch for engaging an apertured tongue of a conventional connector is pivotally seated within the base loop of an inverse clevis having an opening for insertion of the tongue and a solid transverse interior surface confining the engaged end of the latch against pivotal displacement incident to latch angularity under ultimate tensile belt loads sufficient to deflect the channel sides of conventional stamped frames characteristic of prior art seat belt buckles. A modified embodiment of the buckle provides an end release push button in place of the transverse push button of the main embodiment.

Abstract: A vehicle seat belt buckle has a flat tongue part with latching edges, and a socket part with spaced parallel plates defining a socket within which the tongue can be received. A latch member slides at right angles to the plane of the tongue to engage the latch formations to retain the tongue within the socket, the movement being imparted by latch member portions received in grooves of a push botton slidably guided for manual movement in the direction of insertion of the tongue. A spring urged detent retains the push button and thus the latch member in the release positions and is itself released by a portion of an ejector device when this is moved inwardly in the socket on insertion of the tongue. In a modification a spring biassed ejector prevents return of the latch member to its latching position after release of the tongue.

Abstract: A safety belt buckle comprises a tang, a base having an engaging portion in the form of a cut-away in the wall portion thereof and meshing with the tang by the engaging portion, a lever member pivotably provided on the base and capable of assuming a latched position in which the tang is unseparably engaged with the engaging portion during the mesh engagement between the tang and the engaging portion and a non-latched position which permits the tang to be disengaged from the engaging portion, holding means for holding the lever member in the direction of the latched position when the lever member is in the latched position, operating means for releasing the holding of the lever member in the latched position by the holding means and bringing the lever member from the latched position to the non-latched position, and push-out means for sensing the movement of the lever member from the latched position to the non-latched position and pushing the tang out of the engaging portion.

Abstract: A seat belt buckle having a buckle frame and a pivotal latching member mounted therein includes a single spring for biasing a push button toward an outer position and for ejecting a tongue plate from the frame when the latch mechanism is in its open position. The preferred spring is a coil spring which is loaded in tension in an extended configuration. In the preferred embodiment, the spring additionally provides biasing force to lock the latch mechanism in its latching position after insertion of the tongue plate into the buckle frame and provide biasing force to maintain the latching member in its open position prior to insertion of the tongue plate.

Abstract: Lock for a safety belt, with a belt lock into which an insertion tab can be inserted and can be locked by a locking latch, as well as with a pushbutton which can be shifted parallel to the insertion path of the insertion tab against a spring force, and through the operation of which the locking latch can be moved against the force of a compression spring from a locking position into the opening position. A spring tab which is clamped on one side and is arranged substantially parallel to the shifting path of the pushbutton is provided as the compression spring. The pressure of the spring decreases when the pushbutton is shifted into the opening position, as the effective spring length between the clamping point and the point of attach of the force becomes larger.

Abstract: A buckle for a safety belt has a body in which a passageway is provided for receiving a tongue and a latch member movable transversely of the passageway between a latching position in which it engages with the latching formation to retain the tongue in the passageway, and a release position in which the tongue is displaceable by an ejector outwardly from the passageway from its retained position, the latch member being biased into its released position by a spring. A first toggle member pivots about a fulcrum on the latch and abuts a second toggle member which pivots about a fulcrum on the body. The toggle members have a first stable position in which the latch member is held in its latching position against the action of its biasing spring.

Abstract: An end release type of buckle for safety belt harness in vehicles and a method of assembly wherein a channel shaped elongate chassis transversely supports a latch and a latch blocking element, the latter pivotal at one end and biased toward blocking the latch. A closure plate biased to follow insertion and removal of a buckle tongue is reciprocably mounted for longitudinal movement to the web of the chassis. A release slider is provided which reciprocates to remove the blocker against its bias and to depress or open the latch. A tubular case encloses and detentably assembles the chassis and operably guides the release slider while supporting the operating bias applying elements. A cup-like cover is pressed longitudinally over the case and is detentably located and secured to said case. When not in use the latch is held open by the closure plate. When a tongue is pressed into the buckle the closure plate retreats from blocking the entry slot and the latch obeys the bias to lock.

Abstract: In a buckle for a safety belt a pivotable locking bar (13-17) is arranged in relation to the push-in tongue (4) in such a way that the ejector force (11) or the belt force exerting a load on the tongue urges the locking bar out of engagement. To prevent this in the closing position, there is a pivoting lever (21) which can be pivoted as a result of actuation of a slide (27) so that the locking bar (13-17) and consequently the push-in tongue (4) are released. According to the invention, this releasing pivoting movement of the locking bar is assisted because an extension piece (30) is provided on the slide (27) and a projection (32) interacting therewith is provided on the locking bar (13-17), and by means of these, when the slide (27) is pressed in, an additional torque for pivoting the locking bar into the opened position is transmitted.

Abstract: A buckle device has a tongue member, a base member, a latch member mounted on the base member so as to be capable of assuming an engaging position in which the latch member is engageable with the tongue member and a non-engaging position in which the latch member is not engageable with the tongue member, and an operating member capable of assuming an operative position in which it brings the latch member to the non-engaging position and a non-operative position in which the latch member can assume the engaging position. The latch member has a first engaging portion and a second engaging portion, and the operating member has a first acting portion and a second acting portion.