EP0679348B1 - Boucle de ceinture de sécurité - Google Patents

Boucle de ceinture de sécurité Download PDF

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Publication number
EP0679348B1
EP0679348B1 EP95105837A EP95105837A EP0679348B1 EP 0679348 B1 EP0679348 B1 EP 0679348B1 EP 95105837 A EP95105837 A EP 95105837A EP 95105837 A EP95105837 A EP 95105837A EP 0679348 B1 EP0679348 B1 EP 0679348B1
Authority
EP
European Patent Office
Prior art keywords
belt lock
lock according
safety belt
safety
push button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95105837A
Other languages
German (de)
English (en)
Other versions
EP0679348A3 (fr
EP0679348A2 (fr
Inventor
Martin Specht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adam Opel GmbH
Original Assignee
Adam Opel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adam Opel GmbH filed Critical Adam Opel GmbH
Publication of EP0679348A2 publication Critical patent/EP0679348A2/fr
Publication of EP0679348A3 publication Critical patent/EP0679348A3/fr
Application granted granted Critical
Publication of EP0679348B1 publication Critical patent/EP0679348B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • A44B11/2503—Safety buckles
    • A44B11/2507—Safety buckles actuated by a push-button
    • A44B11/2523—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and in the same direction as the fastening action

Definitions

  • the invention relates to a seat belt buckle the preamble of claim 1.
  • Such a seat belt buckle is from GB-A-2 271 377 known.
  • This buckle is for Shock protection one swivel and one Mass locking element provided, which the inertia forces acting on acceleration directs a lever arm directly to the push button and thus the opposite on the push button Compensates for acting inertial forces.
  • the Closing element is designed and arranged such that the locking element in the locked position of the tongue (Leveling compound) directly on the locking bolt is applied and thus locks it.
  • a balancing mass 30 is also provided, which after a first execution of the seat belt buckle on an approximately transverse to the insertion path of the Tongue aligned and rotatably supported on the housing Lever arm is arranged.
  • the lever arm stands approximately parallel to the insertion path sliding plunger in connection which the movements a sliding button to open the seat belt buckle and one between a closing or Release position of the pivotable bolt for the Coupling tongue couples together.
  • This lever arm becomes the inertia force when subjected to a shock load the balancing mass on the plunger transfer that the also acting on the plunger Inertia of the slide button is balanced and the latch remains in its locked position.
  • a second version of the seat belt buckle according to EP-A-0 212 507 is the balancing mass on one supported on a lock plate
  • Leaf spring arranged, which in the rest position with its free end up to the slide button.
  • the leaf spring is opposite to the direction of actuation the slide button slightly bent back and carries the leveling compound on the upper side thus formed. If there is a shock load, so swings the leaf spring under the influence of inertia the balancing mass into a corresponding one Recess of the slide button and holds it over a stop firmly, so that an opening movement of the Sliding button is excluded.
  • the object of the invention is therefore a seat belt buckle according to the preamble of the claim 1 to create a shock security in one extended range of stresses, especially for such Loads with non-linear guidance of the belt buckle arise during the tensioning movement, is guaranteed.
  • the invention also ensures shock protection, if the shock load (excessive Acceleration) lateral forces occur, in particular such force components that are transverse to the direction of actuation the pushbutton for opening the locking bolt engagement in the tongue or across the direction of insertion the tongue into the insertion channel of the Belt buckle act. Such forces occur in particular then, when that with the belt tensioner movement
  • Belt buckle is not guided in a straight line, but on the belt tensioner movement executes a curved path. It then acts on the locking bolt, in particular if the locking bolt is pivotally mounted in the buckle is inertial forces which the locking bolt try to release from the locked position.
  • the invention prevents the locking bolt due to inertial forces from its locked position is moved with the tongue, which act transversely to the insertion direction of the tongue.
  • a locking element is provided for this purpose, that due to its inert mass across Operating direction of the push button or the longitudinal direction of the insertion channel a movement that in essentially perpendicular to the plane of the insertion channel is directed at a corresponding shock load can perform. This movement runs into an end position (Locked position) in which unlocking the tongue or removing the locking bolt prevents the locking engagement with the tongue becomes.
  • the movement of the locking element preferably takes place so that it is in its locked position, in particular during the braking phase of the tightening process, in positive engagement comes with the push button.
  • the locking element is preferably pivotable supported on the locking bolt. Between the swiveling Support point of the locking element on the locking bolt and the axis of the locking bolt, around which the locking bolt is pivotally mounted on the frame, can be advantageous Way, a lever arm may be provided, the one exerts increased locking effect on the locking bolt.
  • the seat belt buckles shown in the figures each have a frame, which is made of two frame plates 4 and 5 is formed.
  • the two Frame sheets are in a known manner, for example connected by plug connection. Between the two frame plates 4 and 5 become an insertion channel 9 formed for a tongue 2.
  • the Tongue 2 is with a not shown Seat belt strap connected in a known manner.
  • the Tongue 2 is in the locked state, which in the figure is shown by a locking bolt 3 in held in the locked position.
  • the locking bolt 3 is pivotable about an axis 13 on the two Frame sheets 4 and 5 formed frame stored.
  • On the locking bolt 3 acts a biasing spring 10. Die Biasing spring 10 presses the locking bolt 3 into its Locking position.
  • the bias spring 10 is on a push button 1 supported.
  • the pushbutton 1 is slidable in the direction of a double arrow 19 on the frame stored.
  • the bias spring 10 is as Compression spring formed. In the operating position shown of the buckle is push button 1 supported on the frame in
  • the biasing spring 10 acts on a lever arm 15 the locking bolt 3 and clamps the locking bolt in his locking position shown in Figures 1 to 3 in front.
  • the bias spring 10 can directly on the lever arm 15 formed on the locking bolt 3 support.
  • the push button 1 an attack point 17, which engages the locking bolt 3.
  • the distance the point of attack 17 from the pivot axis 13 of the Barrier 3 is shorter than the distance of the Swivel axis 13 of a support point 16, at which the tongue 2 in the locking position on Locking block of the locking bolt is present.
  • Fig. 2 (A) and (B) is on the locking bolt 3 on everyone Formed a support arm 33.
  • a role 32 At the front of the Support arm 33 is a role 32.
  • the role 32 is supported when the locking tongue 2 is inserted the top of the upper frame plate 4.
  • the tongue 2 is on the push button 1 an inclined ramp 31 on both sides.
  • the push button 1 in the direction of arrow 20 becomes the role 32 led over the rising inclined ramp 31 and the locking bolt 3 is removed from its engaged position.
  • Through the rollers 32 on the two support arms 33 becomes a low-friction guide along the neck excavation slope acting oblique ramp 31 reached.
  • Inserting the locking tongue 2 into the insertion channel takes place against the force of an ejector spring 7, which is supported on the frame on one side.
  • an ejector spring 7 On the other side of the designed as a compression spring Ejector spring 7 is an ejector 6, the is slidably guided in the insertion channel 9.
  • the tongue 2 In the locking position shown in the figure the tongue 2 by the force of the spring 7 on the Support point 16 on the pawl of the locking lever 3, which in a tongue opening of the Inserted tongue 2 is pressed. If the in the locking engagement shown by the figure the pushbutton actuation is released by the Effect of the ejector spring 7, the tongue 2 in Direction of an arrow 21 removed from the insertion channel.
  • the belt buckle has a shock protection Locking element 8.
  • This locking element is pivotable in a pivot axis 14 mounted on the locking bolt 3. Between the pivot axis 14 with which the locking element 8 is mounted on the locking bolt 3, and the axis 13, with which the locking bolt 3 is mounted on the frame is, a lever arm 15 is effective.
  • the locked operating position which is shown in FIG. 1 is, the locking element 8 is in its normal position in the position shown.
  • the locking element 8 by the bias spring 10 in Biased towards a stop 18.
  • the locking element 8 along the stop surface 18 slide. Is in this position the locking element 8 out of engagement with the push button 1.
  • This form-fitting Intervention is also maintained the braking of the tightening movement.
  • its inertial mass is one of inertia Longitudinal direction of the insertion channel 9, which over the lever arm 15 on the locking bolt 3 a torque generates the locking bolt in its locked position holds.
  • This inertial force component compensates also that which takes effect at the point of attack 17 Inertia of the push button 1 in Fig.1.
  • the center of gravity 24 of the Locking element 8 offset outwards (d) opposite the pivot axis 14 of the locking element 8 on the locking bolt 3. This ensures that too parallel to the insertion direction of the insertion channel 9 acting accelerations due to the inertial mass of the locking element 8 generate moments of inertia which the locking element 8 and its pivot bearing 14 on Swivel locking bolt 3 so that the points of engagement 11 and 12 come into engagement with each other.
  • a shock lever 35 may be formed, the with inserted tongue 2 on the top the frame plate 4 supports.
  • the shock lever 35 can also connected by welding to the locking bolt 3 be.
  • the shock lever 35 is located below a stop 34 which is molded onto the push button 1 can be. Because of the engagement of the locking element 8 in the push button 1 at the points of intervention 11 and 12 a movement of the push button 1 at Shock is prevented by the shock lever arranged below the stop 34 35 an additional geometric position fixation of the locking bolt 3 in the event of a shock.
  • the stop 34 can also be used as a transverse web a bracket 37 may be formed, the form-fitting in the frame formed by the frame plates 4 and 5, e.g. B. under the upper frame plate 4, as shown in Fig. 2 (B).
  • the frame 37 can be used as an insert, which is made of metal into the push button 1 be integrated. Even if the push button is destroyed 1 the lock function is maintained.
  • 3 is an embodiment of one Barrier arrangement shown. 3 is the formation of the locking bolt 3 in its area between the two frame plates 4 and 5, which in Locking engagement with a locking part 26 of the tongue 2 comes. Above the frame plate 4 the locking bolt 3 can be designed as in Embodiments 1 and 2 is shown.
  • the locking bolt 3 has a circular cylindrical locking surface 27 about the locking bolt axis 13, which is at least in the area of the support point 16 of the bolt contour 26 of the tongue 2 extends.
  • the axis 13 is preferably located in the central axis of the upper one Frame plate 4 (top board).
  • the circular cylindrical locking surface 27 sets in one that runs obliquely in the illustrated locked state, e.g. B. parabolic surface 38 to the bottom of the lower frame plate 5 (sub-board) away.
  • the circular cylindrical Bolt surface 27 can be the circular cylindrical Bolt surface 27 continue or rectilinear to have moved on.
  • the latch contour 26 on the tongue 2 is formed as a flat surface and has a rectilinear profile, as shown in FIG. 3 is shown.
  • FIGs 4 and 5 is an anchor point of the buckle.
  • the anchorage point has an oval hollow rivet 28 (oval head-shaped hollow rivet), the two frame plates 4 and 5 rigidly together connects.
  • the hollow rivet 28 performs a spacer function between the two frame plates 4 and 5 out.
  • Used to anchor the buckle an anchoring webbing 29, the looped end is guided through the cavity of the hollow rivet 28.
  • On the inside of the hollow rivet 28 is a webbing protector 30 provided.
  • the buckle can be over the Anchoring webbing 29 on the vehicle body, in particular be anchored in the floor assembly. The flipped End of the webbing is in the area 36 with the Webbing 29 sewn.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Claims (19)

  1. Boucle de ceinture de sécurité comprenant un canal d'introduction aménagé dans un boítier-serrure pour une attache de boucle liée à une ceinture de sécurité, un pêne sollicité par ressort pour l'attache de boucle, un bouton-poussoir actionnable à l'encontre de la force d'un ressort aux fins de déverrouiller l'attache de boucle, un éjecteur sollicité par ressort pour l'attache de boucle déverrouillée et une sécurité aux chocs qui empêche un déverrouillage de l'attache de boucle dans le cas d'une accélération agissant sur les éléments de la boucle, la sécurité aux chocs comprenant un élément de blocage (8) qui, du fait de sa masse d'inertie, lors d'une accélération anormalement élevée transversalement à la direction d'actionnement du bouton-poussoir (1) ou à la direction longitudinale du canal d'introduction (9) tendant à libérer le pêne (3), peut être amené dans une position de blocage empêchant le déverrouillage de l'attache de boucle (2), caractérisée par le fait que dans la position de blocage, l'élément de blocage (8) forme une liaison par obstacle entre le pêne (3) et le bouton-poussoir (1), qui prend appui sur le boítier-serrure (4, 5).
  2. Boucle de ceinture de sécurité selon la revendication 1, caractérisée par le fait que la direction de déplacement de l'élément de blocage (8) vers sa position de blocage est sensiblement perpendiculaire au plan du canal d'introduction (9).
  3. Boucle de ceinture de sécurité selon la revendication 1 ou 2, caractérisée par le fait que l'élément de blocage (8) se trouvant dans la position de blocage limite le déplacement du bouton-poussoir (1).
  4. Boucle de ceinture de sécurité selon une des revendications 1 à 3, caractérisée par le fait que le déplacement de l'élément de blocage (8) dans la position de blocage est un mouvement de pivotement.
  5. Boucle de ceinture de sécurité selon une des revendications 1 à 4, caractérisée par le fait que l'élément de blocage (8) est monté pivotant sur le pêne (3).
  6. Boucle de ceinture de sécurité selon une des revendications 1 à 5, caractérisée par le fait que l'élément de blocage (8) empêche un déplacement d'ouverture du bouton-poussoir (1) et/ou du pêne (3).
  7. Boucle de ceinture de sécurité selon une des revendications 1 à 6, caractérisée par le fait que l'élément de blocage (8) peut pivoter dans la position de blocage (3) à l'encontre de la force d'un ressort (10).
  8. Boucle de ceinture de sécurité selon une des revendications 1 à 7, caractérisée par le fait que des zones d'enclenchement (11, 12) mutuellement adaptées sont aménagées sur le bouton-poussoir (1) et sur l'élément de blocage (8).
  9. Boucle de ceinture de sécurité selon une des revendications 1 à 8, caractérisée par le fait que le pêne (3) est monté tournant autour d'un axe (13) sur le boítier-serrure (4, 5) et qu'un bras de levier (15) est aménagé sur le pêne (3), entre l'axe (13) et le palier d'articulation (14) de l'élément de blocage (8).
  10. Boucle de ceinture de sécurité selon la revendication 7, caractérisée par le fait que l'élément de blocage (8) est pressé par un ressort (10) contre une butée (18) prévue sur le boítier-serrure (4, 5).
  11. Bouche de ceinture de sécurité selon une des revendications 1 à 10, caractérisée par le fait que le pêne (3) est réalisé sous la forme d'un corps moulé qui, dans sa position de verrouillage, comporte un point d'appui (16) pour l'attache de bouche (2) verrouillée et un point d'action (17) pour le bouton-poussoir (1), dont les distances par rapport à l'axe (13) du pêne sont telles qu'une force exercée sur le bouton-poussoir (1) dans la direction d'actionnement agit démultipliée sur le point d'appui (16).
  12. Bouche de ceinture de sécurité selon une des revendications 1 à 11, caractérisée par le fait qu'un servo-moment d'ouverture produit par le ressort d'éjection (7) est créé lors du déplacement d'ouverture du pêne (3).
  13. Bouche de ceinture de sécurité selon une des revendications 1 à 12, caractérisée par le fait que le pêne (3) comporte une surface de verrouillage (27) cylindrique circulaire autour de l'axe (13) du pêne qui est en contact avec une partie de verrouillage (26) de l'attache de bouche (2) introduite.
  14. Bouche de ceinture de sécurité selon la revendication 13, caractérisée par le fait que la surface de verrouillage (27) cylindrique circulaire, lorsque l'attache de bouche (2) est introduite, est aménagée au moins dans la région du point d'appui (16).
  15. Bouche de ceinture de sécurité selon une des revendications 1 à 14, caractérisée par le fait que l'axe (13) du pêne (3) est un axe de rotation aménagé dans la tôle de boítier-serrure (4) supérieure.
  16. Boucle de ceinture de sécurité selon une des revendications 1 à 15, caractérisée par le fait qu'un point d'ancrage de la boucle de ceinture comporte un rivet creux (28) ovale qui relie rigidement l'une à l'autre les deux tôles de boítier-serrure (4, 5) et par le fait que le rivet creux est relié à une extrémité bouclée d'une sangle d'ancrage (29).
  17. Boucle de ceinture de sécurité selon une des revendications 1 à 16, caractérisée par le fait qu'un levier (35) qui est lié rigidement au pêne (3) et est disposé au dessous d'une butée (34) liée au bouton-poussoir (1) bloqué par l'élément de blocage (8) assure un maintien en position géométrique du pêne (3) pendant une sollicitation par choc.
  18. Boucle de ceinture de sécurité selon la revendication 17, caractérisée par le fait que la butée (34) est réalisée sous la forme d'une partie d'une agrafe (37) qui s'engage par complémentarité de forme dans le boítier-serrure (4, 5).
  19. Boucle de ceinture de sécurité selon une des revendications 1 à 18, caractérisée par le fait que le ressort de précontrainte (10) qui prend appui sur le bouton-poussoir (1) agit sur un bras de levier (15) aménagé sur le pêne (3).
EP95105837A 1994-04-28 1995-04-19 Boucle de ceinture de sécurité Expired - Lifetime EP0679348B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4414924 1994-04-28
DE4414924A DE4414924C2 (de) 1994-04-28 1994-04-28 Sicherheitsgurtverschluß

Publications (3)

Publication Number Publication Date
EP0679348A2 EP0679348A2 (fr) 1995-11-02
EP0679348A3 EP0679348A3 (fr) 1997-01-29
EP0679348B1 true EP0679348B1 (fr) 1999-08-18

Family

ID=6516730

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95105837A Expired - Lifetime EP0679348B1 (fr) 1994-04-28 1995-04-19 Boucle de ceinture de sécurité

Country Status (4)

Country Link
EP (1) EP0679348B1 (fr)
AT (1) ATE183371T1 (fr)
DE (2) DE4414924C2 (fr)
ES (1) ES2136761T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9607796D0 (en) * 1996-04-15 1996-06-19 Alliedsignal Ltd Seat belt buckle
GB2322158B (en) * 1997-02-17 2001-09-26 Alliedsignal Ltd Buckle
JP3432471B2 (ja) 1999-12-08 2003-08-04 カツヤマファインテック株式会社 シートベルト用バックル
DE20010541U1 (de) * 2000-06-14 2000-10-26 Trw Repa Gmbh Gurtverschluß mit Ringriegel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533684A1 (de) * 1985-08-17 1987-02-26 Autoflug Gmbh Sicherheitsgurtverschluss
DE3833483A1 (de) * 1988-10-01 1990-04-05 Autoflug Gmbh Gurtschloss mit massenausgleich
GB8904205D0 (en) * 1989-02-23 1989-04-05 Bsrd Ltd Seat belt buckle
DE4007916A1 (de) * 1989-03-15 1990-09-27 Autoflug Gmbh Schocksicherer sicherheitsgurtverschluss
US5163207A (en) * 1989-03-15 1992-11-17 Autoflug Gmbh & Co. Fahrzeugtechnik Shock proof buckle for safety belts
ES2032369T3 (es) * 1990-11-15 1995-09-16 Trw Repa Gmbh Cerradura para sistemas de cinturon de seguridad en vehiculos.
DE9202525U1 (fr) * 1992-02-27 1992-04-16 Autoliv Development Ab, Vaargaarda, Se
GB2271377B (en) * 1992-10-09 1995-08-16 Autoliv Dev A safety belt buckle

Also Published As

Publication number Publication date
DE4414924C2 (de) 1997-02-27
DE59506621D1 (de) 1999-09-23
ATE183371T1 (de) 1999-09-15
ES2136761T3 (es) 1999-12-01
EP0679348A3 (fr) 1997-01-29
DE4414924A1 (de) 1995-11-16
EP0679348A2 (fr) 1995-11-02

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