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: 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 seat belt buckle of the general type disclosed in GB-A-2238074 in which the slider (44) has extending downwardly from its body (46) clips (76) having side flanges (78), the flanges being formed with chamfers (80). The body (74) of the locking member (24) is provided with elongate slots (72), into which the clips (76) can be pressed, the flanges (78) retaining the slider in place. The length of the slots (72) and of the clips (78) is chosen to allow adequate sliding movement of the slider (44).

Abstract: A seat belt buckle has a guide channel formed in a buckle frame into which a tongue connected to a seat belt can be inserted. An ejector, located in the guide channel acts, as an ejector spring in the ejection direction opposite to the insertion direction of the tongue. A locking element is mounted on the buckle frame and can be moved out of an unlocking position into a locking position in order to lock the tongue in the guide channel. A securing element is movable between a securing position for holding the locking element in the locking position and a release position for releasing the locking element. A blocking device is mounted on the securing element and is moved into a blocking position when the locking element is in the locking position. The securing element is held in the securing position against a movement into the release position, whereby the blocking device is held in the blocking position by the ejector.

Abstract: A seat belt buckle (100) operable with a pretensioner (330) comprising: a frame (102) having a first latch opening (126a) therein, and opposing frame sides (108a,b), each side including a latch plate slot (110) arranged generally perpendicular to the direction of movement of a tongue into the buckle and pivoted weight mechanism (112, 200, 220). The buckle additionally includes a latch plate (180), having portions (186) movable within the latch plate slots between a locked position in engagement with an opening within the tongue and with the first latch opening (126a), the latch plate moveable between a latched position within the latch opening (126a) in the frame and within the latch opening (173) of the tongue to an unlatched position out of the latch openings.

Abstract: A buckle assembly is provided with a latch plate for latching or unlatching a tongue plate, a holder member arranged movably in response to a movement of the latch plate, slots formed as guide paths in a buckle base, support apertures formed as a cam portion in a holder member, and an auxiliary lock member supported movably in said slots and support apertures for controlling a movement of the latch plate. In response to a movement of the holder member, the support apertures produce cam action in association with the slots such that the auxiliary member is movable between a position, in which the auxiliary lock member restricts the latch plate to a latching position, and another position, in which the auxiliary lock member restricts the latch plate to an unlatching position.

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: A belt buckle for vehicle safety belts has a load bearing frame and a locking mechanism thereon. A housing encloses the frame and has an insertion slot for an insert tongue acting in conjunction with the locking mechanism. To eliminate any extraneous matter that has entered into the housing through the insertion slot, a channel leads from the insertion slot through the housing and out of the housing, forming a guide for gravity assisted movement of such extraneous matter out of the housing.

Abstract: A buckle for a seat belt has an interlock that provides impact resistance between an ejector and a support for a securing element for securing the locked state, the interlock being maintained during the retensioning process.

Abstract: A pretensioner-proof buckle comprises a buckle for a vehicle safety restraint mechanism, the buckle comprising: a housing (3) having a rectilinear channel for receving a fastening member (2); a latching element (4) mounted within the housing and moveable between a first position in which it engages the fastening member and a second position in which the fastening member is released; a release button (10) operatively connected to the latching element for effecting movement thereof between the first and second positions; a blocking member (5) for engaging the latching element under predetermined conditions to prevent movement of the latching element towards the release position; and an inertial mass (14) pivotally mounted to, and contained within side walls of, the release button (10), the mass being arranged to act on the blocking member under said predetermined conditions to move the blocking member into engagement with the latching element.

Abstract: A buckle for releasably engaging a tongue of a restraint system and the like includes a housing containing a latch having a forward edge pivotally connected to a forward end of the housing. Overlying the latch is a lever that is pivotally connected to the housing intermediate opposite ends of the lever. Interposed between the housing and latch is a leaf spring that urges a back edge of the latch upwardly within the housing and into engagement with a rear end portion of the lever rearwardly of the pivotal connection between the lever and housing for urging a front end portion of the lever forwardly of the pivotal connection toward the housing. A raised rearwardly facing shoulder on the latch is engageable by a wall of a slot in the tongue when the tongue is inserted into the buckle between the lever and latch for retaining the tongue within the buckle.

Abstract: A buckle for a vehicle safety restraint for use with a pretensioner has an actuating button for operating a latch for the tongue of the safety restraint. The button is connected via pulleys to a counterbalancing mass. When the pretensioner is operated and the buckle is retracted, the inertia of the mass counteracts the inertia of the button. Thus the button is prevented from moving in relation to the buckle in a direction which would tend to unlatch the tongue of the safety restraint.

Abstract: A belt lock for a safety belt has a frame (10), a latching element (14) for the latching of the belt tongue (18) and a securing element (16), which secures the latching element (14) in the latched state. Furthermore, a detector device (24, 26, 28) is provided at the belt lock which detects the position of the securing element (16).

Abstract: A seat belt buckle (12) includes a buckle base (34) having a passage (36) for receiving a tongue (16) by movement of the tongue in a first direction into the passage. An ejector (40) in the passage (36) is biased in a second direction opposite the first direction. The ejector (40) moves in the first direction against the bias upon insertion of the tongue (16) into the passage (36). A latch (42) latches the tongue (16) in the passage (36). The buckle (12) includes structure (24, 32) defining an opening (22) through which the tongue (16) is inserted into the passage (36). A shield (60) blocks the opening (22) and blocks foreign matter from passing through the opening.

Abstract: A buckle is formed of a base, a latch member supported by side walls of the base so that the latch member can pivot between its non-engaged position and its engaged position, an operational member manipulated to cancel an engagement between the tongue and the latch member; and a lock member. The latch member is biased to the engaged position, and pivots to the engaged position when a tongue is inserted into a predetermined position to engage the tongue. The lock member holds the latch member to the engaged position when the tongue and the latch member are engaged, and is able to be moved by the operational member to a position capable of canceling the engagement between the tongue and the latch member. The lock member is arranged to move only in the longitudinal direction of the buckle. Thus, the movement of the lock member is simplified to improve controlling ability of the latch member.

Abstract: A buckle for a safety belt has a housing with a recess, a cable to anchor the buckle to a vehicle or to a vehicle seat, and a cable fixing device. The cable has an end nearest to the buckle and the cable fixing device has a retaining section by which the cable fixing device is connected with the end of the cable. The cable fixing device is attached to the buckle. The retaining section extends at least partly into the recess.

Abstract: A seat belt buckle (100) operable with a pretensioner (330) comprising: a frame (102) having a first latch opening (126a) therein, and opposing frame sides (108a,b), each side including a latch plate slot (110) arranged generally perpendicular to the direction of movement of a tongue into the buckle and pivoted weight mechanism (112, 200, 220). The buckle additionally includes a latch plate (180), having portions (186) movable within the latch plate slots between a locked position in engagement with an opening within the tongue and with the first latch opening (126a), the latch plate moveable between a latched position within the latch opening (126a) in the frame and within the latch opening (173) of the tongue to an unlatched position out of the latch openings.

Abstract: In a buckle of the present invention, inertia force F.sub.1 acts in a direction opposite to a direction toward a disengaging position of a main body 4d of a lock member when the buckle is pulled by a pretensioner. Clockwise torque T.sub.1 is developed on a lever 12b and counter-clockwise torque T.sub.2 is developed on a mass body 12c. Since the torque T.sub.2 of the mass body 12c is larger generally, the lever 12b and the mass body 12c rotate together in the counter-clockwise direction so that the lever is set in the restricting position. At the bottoming of the pulling action of the buckle, the inertia force F.sub.2 acts in a direction toward the disengaging position of the main body 4d. Therefore, the mass body 12c rotates in the clockwise direction and the lever 12b is held in the restricting position so that the movement of the lock member in the direction toward the disengaging position of the main body 4d is prevented.

Abstract: A safety belt buckle based on the well accepted pivotal latch design has simple measures for adaptation for use with a belt pretensioner. The pivotal latch (16) is secured in a fastened position by a locking plate (20). The locking plate (20) is for its part held in position by two locking balls (36), which are retained between a recess (28) in the locking plate and an arrest plate (30) adapted to shift in parallelism to the locking plate. For unfastening the buckle it is firstly necessary for such arrest plate (30) to be actuated by way of an inertial mass-compensated system.The buckle is furthermore made proof against extremely high levels of acceleration in all directions.

Abstract: A diagnosable seat belt latch system for use in a vehicle seat belt system provides a latch assembly incorporating a force sensitive sensor interposed between a latch housing and a pressure distribution bushing. A pivoting latch arm having a latch tab at one end for engaging an orifice of a seat belt buckle transfers a compressive load to the force distribution bushing and thereby to the force sensor. A signal processor diagnoses the force sensor to determine whether the seat belt is latched and generates a signal to a vehicle safety restraint system based on the determination.

Abstract: A seat belt buckle which is adapted to releasably engage a latch plate 42 having an aperture 40 therein. The buckle comprises a rigid frame 10 including a base 12 and upstanding side walls 14 adapted to guide the latch plate 42 longitudinally of the frame 10. A locking member 24 is mounted on the frame and carries a downwardly projecting locking element 38. The locking member 24 is pivotable between a lower latched position in which the locking element 38 engages the aperture 40 in the latch plate 42 to retain the latch plate in place, and an upper unlatched position. A pair of wings 30 extend laterally from the locking member 24 and engage in the side walls 14 to pivotally and resiliently mount the locking member 24 for movement between its upper and lower positions. The wings 30 are capable of elastic flexing upon axial loading of the locking member 24 by the latch plate 40.

Abstract: A latch system for joining a first strap section or section of flexible support to a second strap section or section of flexible support. Attached to the second strap section is a rod that is adapted for insertion into the latch system, and for releasing the second strap section in response to a control signal. The latch system also includes a support housing with a cross member and an attachment for attaching the housing to the first strap. The system also includes a crank shaft with a longitudinal axis and which is rotatably supported within the support housing. The crank shaft also includes a generally slotted opening that is substantially parallel to its longitudinal axis.

Abstract: A buckle for a seat belt of a motor vehicle has a frame 10 including a base and upstanding side walls, a lock pin 12 extending between the side walls, a lock bar 18 engagable in an aperture 26 in a latch plate 24 associated with the seat belt, a slider 16 connected with the lock bar 18, said slider 16 being retained under the lock pin 12 when the lock bar 18 is engaged in a latch plate aperture 26, a release button 20 for releasing said slider 16 from the lock pin 12 and thus releasing the lock bar 18 from engagement with the aperture 26 in the latch plate 24. At least one portion of the lock pin 12 contacted by the slider 16 is rotatably mounted within the buckle and is rotated by the motion of the slider 16 during the course of insertion into and/or release from the buckle of a latch plate 24.

Abstract: A buckle mechanism for use in vehicle safety restraint systems which is substantially shock proof against forces in many directions in a crash situation and also against forces generated by buckle pretensioners used to take up the slack in the belt webbing.The buckle mechanism has a movable button and a resiliently biased locking member guided by a rocking support member and movable transversely to the plane of movement of the button to engage or disengage a locking surface of a co-operating tongue. Mutually co-operating abutments are provided respectively on the button and on the locking member or on the rocking support member to lock the button against the buckle disengaging forces of a crash situation. Preferably an overlocking member is also provided to further resist spurious disengagement of the buckle.

Abstract: A seat belt buckle (100) operable with a pretensioner (330) connected thereto for moving the buckle a determinable distance to remove slack of the seat belt about an occupant, the buckle comprising: a frame (102), adapted to be connected to the pretensioner (330), defining a tongue receiving opening (170) to receive a tongue (173) as the tongue is moved in a first direction, the frame having a first opening (126a) therein, and opposing frame sides (108a,b), each side including a latch plate slot (110) arranged generally perpendicular to the first direction and an arcuate slot (112), the arcuate slot (112) including a first portion (112a) generally parallel to the latch plate slots (110) and a second portion (113b) angled thereto, a latch plate (180), having end portions (186) movable within the latch plate slots between a locked position in engagement with an opening within the tongue and with the first opening (136a), a weight assembly pivotally connected to the end portions of the latch plate to generate a

Abstract: A buckle for a seat belt of a motor vehicle includes a lockbar 18 engagable in an aperture 26 in a latch plate 24, which is inserted into the buckle. A slider 16 connected with the lockbar 18 is retained under a lockpin 12 to prevent the lockbar 18 from disengaging the aperture 26 in the latch plate 24, except when a release button 20 is depressed. The surface of the lockpin 12 confronting the slider 16, when the lockbar 18 is engaged in an aperture 26 in a latch plate 24, is provided with one or more protuberances 28 such that when under high load the lockpin 12 becomes embedded in the slider 16 to prevent the slider 16. from sliding with respect to the lockpin 12 and inadvertently releasing the latch plate 24 from the buckle.

Abstract: A seat belt buckle (16) for use with a seat belt pretensioner (30) has an inertia locking mechanism (52). A latch member (64) in the buckle (16) has a locking position for engaging a seat belt locking tongue (14) to block removal of the tongue (14) from the buckle (16). A pushbutton (22) moves the latch member (64) out of the locking position against a bias of a spring (70). The inertia locking mechanism (52) includes a blocking structure (82) which moves into blocking contact with the latch member (64) in response to a predetermined amount of deceleration which occurs when the buckle (16) decelerates and stops moving under the influence of the pretensioner (30).

Abstract: A seat belt buckle for cooperation with an insert tongue comprises a swivel latch mounted in a frame to be movable between a locked position and a released position, and a helical pressure spring which has a first end supported by said swivel latch and a second end supported by a locking member. The spring is held by a spring receptacle which is defined by two ridges on said frame and which surrounds a spigot on said locking member. The second pressure spring end and said spring receptacle are configured such that said second spring end is self-centered on said spigot. Due to this configuration, a malassembly of the spring is excluded.

Abstract: A buckle includes a base frame 10, a latch plate 30, a locking wing 40 and an ejector 20. The base frame 10 is formed with a tongue insertion path 12 through which a tongue plate 2 is inserted. The latch plate 30 is pivotally supported on an upper surface of the base frame 10, having a latch pawl 33 formed at a front end and an operational arm 32 formed at a rear end, which is applied with pivoting force by the end of the tongue plate 2 when the tongue plate 2 is inserted. The locking wing 40 is structured to maintain the locked state by biasing force of a locking spring 37 between the locking wing 40 and the latch plate 30 and by an engagement between the locking wing 40 and locking pawl 33. The locking wing 40 is also structured to release the engagement between the locking wing 40 and the locking pawl 33 by a movement of a press button 52. The ejector 20 is supported slidably in the tongue insertion path 12 and biased by an ejector spring 21.

Abstract: An end release buckle. A buckle frame has a pivotally mounted pawl for lockingly engaging a buckle tongue. The pawl is urged to a locking position by a pawl spring and is released by an end release button having a ramp surface contacting and pivoting the pawl. A tongue ejector is slidably mounted within the frame and is normally urged over the pawl by an ejector spring holding the pawl in an unlocked position. The ejector moves apart from the pawl upon insertion of the tongue. A separate member slidably mounted within the frame is forced forwardly towards the buckle entrance by the button and the button spring upon insertion of the tongue with the member sliding beneath the locked pawl.

Abstract: A safety belt buckle for receiving and retaining a tongue includes a housing defining a path therein to receive the tongue. A main locking element is movable between a release position in which it does not engage the tongue, and a locking position in which it engages the tongue to retain the tongue in the buckle. A push button is movable along a longitudinal axis of the path and is positioned above the main locking element. A second locking element is mounted to the housing between the push button and the main locking element, and includes a first portion engagable by the push button, and a second portion movable to a first position to engage the main locking element to prevent movement of the main locking element to the release position. The second portion and the push button are movable along the longitudinal axis of the path in opposite directions when the main locking element is to be released so that the second portion is moved to a second position in which the main locking element is freed.

Abstract: The buckle for safety belts is based on the well accepted pivotal latch design and using simple means is designed to resist the effects of a belt pretensioner. The pivotal latch is secured in a locked position by a catch plate. The catch plate is for its part held by two locking balls, held between a recess in the catch locking plate and an arresting plate extending parallel to the catch plate. For release of the buckle firstly this locking plate must be moved using a mass-balanced system.

Abstract: The present invention is directed to an end release belt buckle that is operable for releasable latching a tongue plate of a vehicular safety belt restraint system. The end release belt buckle of the present invention includes a base having a latch portion adapted to lockingly engage the tongue plate. The end release belt buckle further includes a release mechanism for permitting the seat occupant to intentionally release the tongue plate from locked engagement with the latch portion of the base in response to movement of a push-button actuator from a "latched" position to a "released" position. The push-button actuator is normally biased to the "latched" position by a spring-biasing mechanism. In addition, the end release belt buckle further includes a locking mechanism for inhibiting unintentional movement of the push-button actuator from the "latched" position to the "released" position when the vehicle is subjected to a deceleration force exceeding a predetermined threshold value.

Abstract: An end release type belt buckle for releasably latching a tongue plate of a safety belt system in a latched position. The belt buckle has a base, a release mechanism and an actuator supported for sliding movement on the base. The base has a stationary latch portion adapted to releasably lock the tongue plate in the latched position. The actuator includes a first surface for urging the tongue plate into the latched position, a second surface for retaining the tongue plate in the latched position, and a third surface for actuating the release mechanism to urge the tongue plate from the latched position into a released position. In addition, the end release belt buckle includes an illumination device affixed to the actuator for illuminating selected portions thereof, and an electrically conductive coupling arrangement for maintaining an electrical circuit during sliding movement of the actuator.

Abstract: An end release type belt buckle for releasably latching a tongue plate of a safety belt system in a latched position. The belt buckle has a base, a release mechanism and an actuator supported for movement on the base. The base has a stationary latch portion adapted to releasably lock the tongue plate in the latched position. The actuator includes a first surface for urging the tongue plate into the latched position, a second surface for retaining the tongue plate in the latched position, and a third surface for actuating the release mechanism to urge the tongue plate from the latched position into a released position.

Abstract: A seat belt buckle (11) comprises a base (10) including a rear end portion (74) and a front end portion (75) located opposite the rear end portion. The base includes a first set of tabs (76, 77) at the rear end portion of the base and a second set of tabs (78, 79) at the front end portion of the base. A latch mechanism (12, 14, 16, 18, 20, 22) is supported on the base for engaging a seat belt locking tongue and locking it to the base. A one-piece buckle cover (26) includes wall portions (130, 131, 132, 133) defining a cavity (95) for receiving the base and the latch mechanism. The cover also includes a front portion and a rear portion located opposite the front portion. The cover further includes a first shoulder (136, 137) at the rear portion of the cover and a second shoulder (138) at the front portion of the cover. The first shoulder engages the first set of tabs when the base is received in the cavity in the cover.

Abstract: It is object of the present invention to provide a buckle for a seat belt having an excellent double lock function that can surely lock the latching by a latching member even against impact in any directions without impairing normal operability.

Abstract: A buckle apparatus includes a buckle body, a tongue plate, a lock plate supported by the buckle body, and being swingable between a first position for engaging the tongue plate and a second position for releasing the engagement, a lock pin moving in the tongue plate removal direction so as to prevent the lock plate from swinging toward the second position and moving in the tongue plate insertion direction so as to allow the lock plate to swing toward the second position, a release button pressing the holder so as to move the lock pin, teeth provided on the cover of the buckle body, and an engaging member being separated from the teeth in a state where the holder is in contact with the release button and engaging tile teeth so as to prevent the holder from moving in a state where the holder is separated from the release button.

Abstract: A vehicle seat belt buckle mechanism designed for use with belt pretensioning means and being rendered immune to the effects of rapid buckle deceleration following pretensioning action the mechanism having a resiliently movable plate 82 carried by the buckle release button, the resilience being effectively much lighter than release button return springs 49c so that although the plate 82 normally has no effect, in the event of pretensioning action, it slides into an abutting position in the mechanism to inhibit subsequent spurious release resulting from button movement in a crash situation.

Abstract: A buckle pretensioner for a seat belt system includes a support member on which a buckle is mounted for movement generally downwardly from a normal upper position to a pretensioning lower position in which pretension is applied to the seat belt. A rotary actuator mounted on the support member and supplied with gas from a gas generator provides a driving force for moving the buckle downwardly along the support member. A connecting mechanism, which includes a force-transmitting mechanism that transduces a tangential force produced by rotation of the rotor of the rotary actuator to a translational force, connects the rotary actuator to the buckle for transmitting the driving force from the rotary actuator to the buckle. A locking device locks the buckle in the lower position to which it is driven by the driving force.

Abstract: A buckle for vehicle safety belt systems provided with a pretensioner engaging the buckle, is prevented by a locking pawl (42) from unintentional opening at the beginning and at the end of a pretensioning stroke. By the effect of its mass inertia at the start of the pretensioning stroke an inertial body moves the locking pawl (42) into a locking position in which the release button (30) is prevented from moving in a direction relative to the base in the pretensioning direction (R). Due to the location of its center of gravity relative to its mounting position the locking pawl (42) at the end of the pretensioning stroke remains in the locking position and is decoupled from the inertial body (56).

Abstract: When the connection of the buckle main body A with the tongue is to be released during normal operation, the operating member is operated and is moved to the position where the engagement of the tongue with the latch member can be released. In this case, the locking member can be moved toward the position where the engagement of the tongue with the latch member can be released, and the locking member is perfectly moved to the position where the engagement of the tongue with the latch member can be released by the operating member. When impact is applied on the buckle unit, control device prevents the locking member from moving toward the position where the engagement of the tongue with the latch member can be released. For this reason, the engagement of the tongue with the latch member cannot be released, and the connection of the buckle main body with the tongue can be maintained.

Abstract: A seat belt buckle 10, adapted to releasably engage with a latch plate 24 insertable within a latch passage 22 in the seat belt buckle 10, comprises: a rigid frame 12 having an open forward end 11 defining the latch passage 22, an opposite rearward end 13 adapted to be attached to a seat belt, an apertured rectangular base plate 14, an upstanding side wall 16 extending from each longitudinal edge of the base plate 14, and a fixed bar 18 extending across the width of the base plate 14 between the forward and rearward ends thereof, parallel to, and spaced apart from, the base plate 14, the fixed bar 18 being secured at each end thereof to a respective side wall 16.

Abstract: A buckle assembly (36) includes a latch member (50) which is movable between an engaged position and a release position. A pushbutton (88) is manually actuatable from a first position to a second position to move the latch member from the engaged position to the release position. The latch member is movable from the engaged position to the release position against force provided by only a latch spring (64) upon insertion of a tongue (38, 40) into the buckle assembly. The pushbutton is manually actuatable from the first position to the second position against a combined force provided by the latch spring and a coil spring (92). A one-piece plastic locator member (112) is mounted on a base (44) of the buckle assembly. The locator member extends into a belt receiving opening (46) in the base to protect the belt (32) against abrasion by the metal base.

Abstract: A safety belt buckle for receiving and locking an insertion tongue is comprised of a casing having an insertion slot, an insertion tongue that is slidably mounted in the insertion slot and has a cutout, a spring-loaded ejector, arranged in the insertion slot and acting on the insertion tongue, and a locking device mounted inside the casing and cooperating with the cutout of the insertion tongue for locking the insertion tongue in the insertion slot in a locking position of the safety belt buckle. Furthermore, a spring-loaded sliding key is guided within the casing and comprises a sliding key body and a key button The key button is slidably connected to the sliding key body. The sliding key cooperates with the locking device to unlock the safety belt buckle.

Abstract: A seat belt buckle adapted to releasably engage a latch plate 42 having an aperture 40 therein, the buckle comprising a rigid frame 10 including a base 12 having an opening therein, upstanding side walls 14 adapted to guide the latch plate longitudinally of the frame, a bar 16 extending transversely of the frame between the side walls, the bar being spaced above the base, a locking member 24 pivotally mounted on the frame and pivotal between a lower latched position and an upper unlatched position, the locking member carrying a downwardly projecting locking element 38 engageable in the aperture 40 in the latch plate 42 to retain the latch plate in place and passing into the opening, a slider 44 slidable longitudinally of the locking member between a first position in which it is located under the bar 16, to retain the locking member in the lower latched position and a second position in which it is resiliently engaged against the rear of the bar to retain the locking member in its upper unlatched position, a

Abstract: A safety belt buckle comprises a housing with an insertion path, a spring loaded ejector positioned in the insertion path, and a recess communicating with the insertion path. An insertion tongue with a cutout is insertable into the insertion path. A latch inside the housing locks the insertion tongue by engaging the cutout of the insertion tongue and the recess of the housing. A spring-loaded slide key is slidably connected to the housing and slidable in the direction transverse to a plane of movement of the latch. A spring-loaded slide key serves to release the latch. A compensation mass member is displaceably arranged within the housing for compensating acceleration forces acting on the safety belt buckle. A securing element is displaceably arranged within the housing such that the securing element secures the latch in its locking position and is movable into a release position by the slide key.

Abstract: A seat belt buckle is disclosed in which play between a buckle base and a buckle button caused by vibration during the operation of an automobile is prevented, so that the tips of a pair of arm leaves formed on the buckle button are elastically pressed against the outer surfaces of a pair of upright plates on the buckle base to prevent lateral play between the buckle base and the buckle button, while vertical play is prevented by the elastic pressure from the tips of another pair of arm leaves against the upright plates.

Abstract: The belt lock comprises a closure mechanism and at least one belt strap end piece (2) which can be inserted into the mechanism, the belt strap end piece having a tongue (4) designed to lock with the mechanism. The mechanism has a metal frame (7), an arresting element (8) mounted in recesses (18) in the sides of the frame, an ejector (9) for the tongue, an arresting element support (10) and a belt-release button (11). In order to simplify the belt lock, reduce its manufacturing costs and increase its reliability, the arresting element (8) is designed as a plate with a rear recess (28) and the recesses (18) in the sides of the metal frame are designed as slots in which the arresting element (8) can be mounted. The slots extend parallel to the direction of motion of the tongue (4) in the frame (7) and their size is such that the pins (19) of the element (8) are guided to move in the direction of motion of the tongue (4) substantially without any play at right angles to this direction.

Abstract: A buckle for a safety belt, especially for motor vehicles, for receiving and locking an insertion tongue. A locking latch is provided that is biased in an opening direction and is pivotably mounted in a buckle housing such that in a locking position the locking latch extends into a recess of the insertion tongue. A locking bar is movably mounted in the housing at an angle to an insertion path of the insertion tongue, with the locking bar securing the locking latch in the locking position thereof. A sliding key is guided transverse to a plane of movement of the locking latch for cancelling the locking position thereof via actuation of the locking bar. To protect the buckle from shock, a compensating mass is mounted in the housing such that it is movable relative to the locking bar. The compensating mass serves for fixing the locking bar in position.