EP0679348A2 - Boucle de ceinture de sécurité - Google Patents

Boucle de ceinture de sécurité Download PDF

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Publication number
EP0679348A2
EP0679348A2 EP95105837A EP95105837A EP0679348A2 EP 0679348 A2 EP0679348 A2 EP 0679348A2 EP 95105837 A EP95105837 A EP 95105837A EP 95105837 A EP95105837 A EP 95105837A EP 0679348 A2 EP0679348 A2 EP 0679348A2
Authority
EP
European Patent Office
Prior art keywords
locking
seat belt
belt buckle
buckle according
locking bolt
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.)
Granted
Application number
EP95105837A
Other languages
German (de)
English (en)
Other versions
EP0679348B1 (fr
EP0679348A3 (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
HS Technik und Design Technische Entwicklungen 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 HS Technik und Design Technische Entwicklungen GmbH filed Critical HS Technik und Design Technische Entwicklungen 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 according to the preamble of claim 1.
  • the object of the invention is therefore to provide a seat belt buckle according to the preamble of claim 1, in which shock resistance in an expanded range of loads, in particular with such loads that arise when the belt buckle is not guided in a straight line during the pretensioning movement, is ensured.
  • a locking element is provided for this purpose, which due to its inert mass transversely to the direction of actuation of the pushbutton or the longitudinal direction of the insertion channel can execute a movement which is directed essentially perpendicular to the plane of the insertion channel with a corresponding shock load. This movement runs into an end position (locking position) in which unlocking of the tongue or removal of the locking bolt from the locking engagement with the tongue is prevented.
  • the movement of the locking element takes place in such a way that in its locking position, in particular during the braking phase of the tightening process, there is positive engagement with the push button.
  • a positive connection can be formed between the locking bar in its locking position and the push button, which is immovably supported on the frame during the shock load. This ensures that shock loads in the most varied of directions do not adversely affect the lock because the lock components, which can cause the locking bolt to open when it is in its locked position, are kept motionless by the positive lock and the support on the frame. This positive locking is achieved in particular in the braking phase of the tightening process.
  • the locking element is preferably pivotally supported on the locking bolt. Between the pivotable 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, a lever arm can be provided in an advantageous manner, which exerts an increased locking effect on the locking bolt.
  • the seat belt buckles shown in the figures each have a frame which is formed from two frame plates 4 and 5.
  • the two frame plates are connected to one another in a known manner, for example by a plug connection.
  • An insertion channel 9 for a tongue 2 is formed between the two frame plates 4 and 5.
  • the tongue 2 is connected to a seat belt webbing, not shown, in a known manner.
  • the tongue 2 is held in the locked position, which is shown in the figure, by a locking bolt 3 in the locked position.
  • the locking bolt 3 is pivotally mounted about an axis 13 on the frame formed by the two frame plates 4 and 5.
  • a biasing spring 10 acts on the locking bolt 3.
  • the biasing spring 10 presses the locking bolt 3 into its locking position.
  • the biasing spring 10 is supported on a push button 1.
  • the push button 1 is slidably mounted on the frame in the direction of a double arrow 19.
  • the biasing spring 10 is designed as a compression spring. In the illustrated operating position of the buckle, the push button 1 is supported
  • the biasing spring 10 acts via a lever arm 15 on the locking bolt 3 and biases the locking bolt in its locking position shown in Figures 1 to 3.
  • the biasing spring 10 can be supported directly on the lever arm 15 formed on the locking bolt 3.
  • the push button 1 has an engagement point 17 which engages on the locking bolt 3.
  • the distance of the point of attack 17 from the pivot axis 13 of the locking bolt 3 is shorter than the distance of the pivot axis 13 from a support point 16 at which the tongue 2 rests in the locking position on the locking block of the locking bolt.
  • a support arm 33 is formed on the locking bar 3 on each side.
  • a roller 32 At the front end of the support arm 33 there is a roller 32.
  • the roller 32 is supported on the upper side of the upper frame plate 4 when the locking tongue 2 is inserted.
  • an inclined ramp 31 on the pushbutton 1 On both sides.
  • the roller 32 is guided over the rising inclined ramp 31 and the locking bolt 3 is out of it Removed engagement position.
  • the rollers 32 on the two support arms 33 achieve low-friction guidance along the inclined ramp 31 acting on the neck excavation slope.
  • the locking tongue 2 is inserted into the insertion channel against the force of an ejector spring 7, which is supported on the frame on one side.
  • the tongue 2 is pressed by the force of the spring 7 at the support point 16 onto the locking block of the locking lever 3, which is inserted into a tongue opening of the tongue 2.
  • the action of the ejector spring 7 removes the tongue 2 in the direction of an arrow 21 from the insertion channel.
  • the abutting surfaces and the surface part of the block of the locking bolt 3, which is moved past the adjacent part of the tongue 2 during the opening movement, are designed accordingly obliquely, so that the desired servo opening moment in the longitudinal direction of the insertion channel 9 by the pressure force imparted by the ejector spring 7 acts on the locking bolt 3.
  • the belt buckle has a locking element 8 for shock protection.
  • This locking element is pivotably mounted on the locking bolt 3 in a pivot axis 14.
  • a lever arm 15 is effective 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.
  • the locking element 8 In the locking operating position, which is shown in Figure 1, the locking element 8 is in its normal position in the position shown.
  • the locking element 8 is biased by the biasing spring 10 in the direction of a stop 18.
  • the locking element 8 can slide along the stop surface 18. In this position, the locking element 8 is out of engagement with the push button 1.
  • each other 8 engagement points 11 and 12 are formed on the push button 1 and the locking element.
  • these engagement points 11 and 12 come into engagement with one another, so that the locking element 8 between the locking bolt 3 and the push button 1 a rigid positive connection is formed, which is immobile due to the storage of the push button 1 and the storage of the locking bolt 3 on the frame relative to the frame.
  • This positive engagement ensures that the locking position of the locking bolt shown is not released in the event of shock loads from any direction.
  • the locking element 8 When braking the pretensioning movement, the locking element 8 exerts, due to its inertial mass, one of the inertial force in the longitudinal direction of the insertion channel 9, which generates a torque via the lever arm 15 on the locking bolt 3, which holds the locking bolt in its locking position.
  • This inertial force component also compensates for the one that becomes effective 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 can be offset outwards (d) relative to the pivot axis 14 of the locking element 8 on the locking bolt 3. This ensures that accelerations acting parallel to the insertion direction of the insertion channel 9, due to the inert mass of the locking element 8, generate moments of inertia by which the locking element 8 and its pivot bearing 14 pivot on the locking bolt 3, so that the engagement points 11 and 12 come into engagement with one another.
  • the line of action 25 of the biasing spring 10 is offset from the pivot bearing 14 of the locking element 8, so that a necessary torque acts on the locking element 8 to hold the locking element 8 in its normal position in the locking position shown.
  • the push button 1 can be actuated without hindrance to open the locking engagement of the locking bolt 3 in the tongue 2 in the actuating direction (arrow 20).
  • the center of gravity of the blocking element 8 can lie, for example, on this line of action.
  • a separate spring can also be provided.
  • a shock lever 35 can be formed on the locking bolt 3, which is supported on the top of the frame plate 4 when the tongue 2 is inserted.
  • the shock lever 35 can also be connected to the locking bolt 3 by welding.
  • the shock lever 35 is located below a stop 34, which can be molded onto the push button 1. Since movement of the pushbutton 1 in the event of a shock load is prevented by the engagement of the locking element 8 in the pushbutton 1 at the engagement points 11 and 12, an additional geometric position fixing of the locking bar 3 in the event of a shock load is achieved by the shock lever 35 arranged below the stop 34.
  • the stop 34 can also be designed as a transversely extending web of a clamp 37, which fits positively in the frame formed by the frame plates 4 and 5, e.g. engages under the upper frame plate 4, as shown in FIG. 2 (B).
  • the frame 37 can be integrated into the push button 1 as an insert, which consists of metal. The lock function is maintained even if button 1 is destroyed.
  • 3 shows an exemplary embodiment of a locking bolt arrangement.
  • 3 shows the design of the locking bolt 3 in its area between the two frame plates 4 and 5, which comes into locking engagement with a locking part 26 of the tongue 2.
  • Above the frame plate 4, the locking bolt 3 can be designed as shown in the exemplary embodiments 1 and 2.
  • the locking bolt 3 has a circular-cylindrical locking surface 27 around the locking bolt axis 13, which extends at least in the region of the support point 16 of the locking contour 26 of the tongue 2.
  • the locking bolt axis 13 is in the illustrated embodiment formed as a fictional axis, which is formed by abutting circular surfaces on the lower frame plate 4 and the locking bolt 3.
  • the axis 13 is preferably located in the central axis of the upper frame plate 4 (top board).
  • the circular-cylindrical locking surface 27 is set in an obliquely extending, e.g. parabolic surface 38 to the bottom of the lower frame plate 5 (sub-board). To the top of the upper frame plate 4, the circular-cylindrical locking surface 27 can continue or be advanced in a straight line.
  • the locking contour 26 on the tongue 2 is designed as a flat surface and has a straight profile, as shown in FIG. 3. The embodiment shown reduces the breakaway force at the support point 16 between the locking contour of the locking part 26 and the circular-cylindrical locking surface 27 for a given preload. Furthermore, the servo opening torque already explained is achieved due to the shape of the surface 38.
  • FIGS. 4 and 5 show an anchoring point of the buckle.
  • the anchoring point has an oval hollow rivet 28 (oval head-shaped hollow rivet) which rigidly connects the two frame plates 4 and 5 to one another.
  • the hollow rivet 28 performs a spacer function between the two frame plates 4 and 5.
  • An anchoring webbing 29 is used to anchor the buckle, the looped end of which is guided through the cavity of the hollow rivet 28.
  • a belt protector 30 is provided on the inside of the hollow rivet 28.
  • the buckle can be over the Anchoring belt webbing 29 on the vehicle body, in particular in the floor assembly. The folded end of the webbing is sewn to the webbing 29 in the area 36.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
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 true EP0679348A2 (fr) 1995-11-02
EP0679348A3 EP0679348A3 (fr) 1997-01-29
EP0679348B1 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997038600A1 (fr) * 1996-04-15 1997-10-23 Alliedsignal Limited Boucle pour ceinture de securite
WO1998038882A1 (fr) * 1997-02-17 1998-09-11 Breed Automotive Technology, Inc. Boucle
EP1266587A1 (fr) * 1999-12-08 2002-12-18 Kabushiki Kaisha Tokai Rika Denki Seisakusho Boucle de ceinture de sécurité

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20010541U1 (de) * 2000-06-14 2000-10-26 Trw Repa Gmbh Gurtverschluß mit Ringriegel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212507A2 (fr) * 1985-08-17 1987-03-04 Autoflug Gmbh & Co Fahrzeugtechnik Boucle de verrouillage pour ceinture de sécurité
GB2223265A (en) * 1988-10-01 1990-04-04 Autoflug Gmbh Safety belt buckle
WO1990010397A1 (fr) * 1989-03-15 1990-09-20 Autoflug Gmbh & Co. Fahrzeugtechnik Boucle resistant aux chocs pour ceintures de securite
DE9202525U1 (fr) * 1992-02-27 1992-04-16 Autoliv Development Ab, Vaargaarda, Se
EP0485656A1 (fr) * 1990-11-15 1992-05-20 TRW Occupant Restraint Systems GmbH Fermeture pour ceinture de sécurité de véhicules automobiles
GB2271377A (en) * 1992-10-09 1994-04-13 Autoliv Dev A safety belt buckle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0212507A2 (fr) * 1985-08-17 1987-03-04 Autoflug Gmbh & Co Fahrzeugtechnik Boucle de verrouillage pour ceinture de sécurité
GB2223265A (en) * 1988-10-01 1990-04-04 Autoflug Gmbh Safety belt buckle
WO1990010397A1 (fr) * 1989-03-15 1990-09-20 Autoflug Gmbh & Co. Fahrzeugtechnik Boucle resistant aux chocs pour ceintures de securite
EP0485656A1 (fr) * 1990-11-15 1992-05-20 TRW Occupant Restraint Systems GmbH Fermeture pour ceinture de sécurité de véhicules automobiles
DE9202525U1 (fr) * 1992-02-27 1992-04-16 Autoliv Development Ab, Vaargaarda, Se
GB2271377A (en) * 1992-10-09 1994-04-13 Autoliv Dev A safety belt buckle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997038600A1 (fr) * 1996-04-15 1997-10-23 Alliedsignal Limited Boucle pour ceinture de securite
WO1998038882A1 (fr) * 1997-02-17 1998-09-11 Breed Automotive Technology, Inc. Boucle
US6205628B1 (en) * 1997-02-17 2001-03-27 Breed Automotive Technology, Inc. Buckle
EP1266587A1 (fr) * 1999-12-08 2002-12-18 Kabushiki Kaisha Tokai Rika Denki Seisakusho Boucle de ceinture de sécurité
US6588077B2 (en) 1999-12-08 2003-07-08 Kabushiki Kaisha Tokai-Rika-Denki Seisakusho Seat belt buckle

Also Published As

Publication number Publication date
DE4414924C2 (de) 1997-02-27
DE59506621D1 (de) 1999-09-23
ATE183371T1 (de) 1999-09-15
EP0679348B1 (fr) 1999-08-18
ES2136761T3 (es) 1999-12-01
EP0679348A3 (fr) 1997-01-29
DE4414924A1 (de) 1995-11-16

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