EP0369354A2 - Boucle de ceinture - Google Patents

Boucle de ceinture Download PDF

Info

Publication number
EP0369354A2
EP0369354A2 EP89120913A EP89120913A EP0369354A2 EP 0369354 A2 EP0369354 A2 EP 0369354A2 EP 89120913 A EP89120913 A EP 89120913A EP 89120913 A EP89120913 A EP 89120913A EP 0369354 A2 EP0369354 A2 EP 0369354A2
Authority
EP
European Patent Office
Prior art keywords
tongue
belt buckle
lock
tongue part
buckle according
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.)
Withdrawn
Application number
EP89120913A
Other languages
German (de)
English (en)
Other versions
EP0369354A3 (fr
Inventor
Terence Sam Crisp
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.)
Sispa Gesellschaft fur Sicherungs- und Spangenverschluesse Mbh
Original Assignee
Sispa Gesellschaft fur Sicherungs- und Spangenverschluesse Mbh
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 Sispa Gesellschaft fur Sicherungs- und Spangenverschluesse Mbh filed Critical Sispa Gesellschaft fur Sicherungs- und Spangenverschluesse Mbh
Publication of EP0369354A2 publication Critical patent/EP0369354A2/fr
Publication of EP0369354A3 publication Critical patent/EP0369354A3/fr
Withdrawn legal-status Critical Current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
    • A44B11/2511—Safety buckles actuated by a push-button acting perpendicularly to the main plane of the buckle, e.g. placed on the front face of the buckle

Definitions

  • the invention relates to a belt buckle with a lock housing, which is provided with a recess into which a lock tongue mounted on a tongue part can be inserted and locked.
  • belt buckles are known from the prior art, which can be used, for example, for seat belts in vehicles or aircraft. Furthermore, such belt buckles are widely used in restraint systems for child seats, for example in strollers, child car seats and the like.
  • the lock housing and the tongue part are usually fastened to one end of a lap belt.
  • a lock tongue is firmly connected to a tongue part and is designed such that it can be inserted into a recess in the lock housing, in which there is a locking device which automatically engages when the lock tongue is inserted and can be released by pressing a button.
  • the buckle housing In order to ensure a quick and safe opening of the belt buckle in the event of an accident, it has been determined that the buckle housing must be provided with an ejector device, through which the buckle tongue is pushed out when the locking device is released, in order to prevent jamming. It proves disadvantageous that relatively high forces are required to push the lock tongue together with the tongue part away from the lock housing.
  • a belt buckle in which in addition to the lock housing and the tongue part, which each support the ends of a lap belt, belt end pieces are provided, by means of which shoulder straps can be fastened to the lock housing. The end pieces are pushed between the lock housing and the tongue part onto the lock tongue and locked when the lock tongue engages in the lock housing.
  • Such a buckle has the disadvantage that the lock housing and the tongue part can also be connected to one another when the end pieces are not hooked in. It is therefore not ensured that the operator puts on and hangs the shoulder straps in the correct manner.
  • EP-B1-137 374 describes a belt buckle for a seat belt system in which an additional bolt is provided on the buckle housing, which can only be actuated if at least one of the additional end pieces is arranged between the buckle housing and the tongue part.
  • This embodiment has the disadvantage that the belt buckle can be closed even with the interposition of only one end piece, so that manipulations are made possible to close the belt buckle even when not all end pieces are on the fixed tongue.
  • a similar embodiment is known from DE-GM 82 30 071, in which an additional lever is provided on the lock housing, by means of which the bolt is released when the end pieces are arranged between the lock housing and the tongue part.
  • This belt buckle also has the disadvantages mentioned above on, that is, both manipulations are possible to connect the tongue part to the lock housing without intermediate arrangement of the end piece, as well as complex measures to release the tongue part from the lock housing when the belt buckle is unlocked.
  • the invention has for its object to provide a belt buckle of the type mentioned, which with a simple structure and reliable handling ensures both a secure locking of the buckle, as well as a reliable separation of the tongue part from the lock housing in the unlocked state and in which the additional arrangement of end pieces of other belts is possible so that incorrect operation or manipulation are excluded.
  • the object is achieved in that the lock tongue is retractably mounted on the tongue part and can be pushed out by means of an ejection device acting against a pretensioning element which biases the lock tongue into a lowered position, and in that the ejection device comprises at least one actuating element which is located in a region between the lock housing and the tongue part is arranged and can be actuated when the lock housing bears against the tongue part.
  • the belt buckle according to the invention is characterized by a number of considerable advantages.
  • the buckle tongue is not fixedly mounted on the tongue part, but can be moved relative to it and can be countersunk in the tongue part.
  • the lock tongue is thus either not visible or at least sunk into the tongue part to such an extent that it is not possible to insert the lock tongue into the lock housing and to lock it thereon.
  • the push-out device Only by pressing the Push-out device according to the invention, the lock tongue is pushed so far out of the tongue part that it can be locked on the lock housing. This results in a significant advantage of the belt buckle according to the invention.
  • By designing the push-out device accordingly it is in fact possible according to the invention to avoid incorrect operation and manipulation, since if the tongue part is not properly assigned to the lock housing, the lock tongue cannot be locked.
  • Another essential advantage of the invention is that no ejecting devices have to be provided, by means of which the lock housing is separated from the tongue part when the belt lock is unlocked. Rather, the relative mobility of the lock tongue to the tongue part causes the lock tongue to be withdrawn immediately into the tongue part when the locking device of the lock housing is released. The lock housing and the tongue part separate automatically, so that the lock housing is completely released without the risk of jamming.
  • This advantage occurs both when the lock housing is locked directly with the tongue part and when additional end pieces to be arranged between the lock housing and the tongue part are used, for example shoulder straps or a crotch strap.
  • a biasing element is also provided, which is arranged on the tongue part and biases the lock tongue into the lowered position.
  • the push-out device comprises at least one actuating element which is arranged in an area between the lock housing and the tongue part and can be actuated when the lock housing bears against the tongue part.
  • the pushing-out device is thus automatically also operated, so that the operator does not have to carry out any additional operations, such as are required, for example, in the case of multiple belt buckles in the field of aviation.
  • At least one additional belt end piece can be plugged onto the lock tongue in the extended state and locked to the belt buckle, the end piece being engageable with the actuating element.
  • the end piece can for example be connected to shoulder straps or a crotch strap.
  • the actuating element is preferably arranged on a surface of the tongue part which, when the belt buckle is closed, bears against the lock housing or the end piece.
  • the lock tongue is designed in the form of a slidably mounted plate on the tongue part.
  • the production of the lock tongue is possible at very low cost, on the other hand, it is possible in a simple and safe manner to mount the lock tongue on the tongue part in a displaceable manner, without additional guide elements or the like being necessary.
  • a locking surface which can be brought into engagement with a bolt of the lock housing is provided at the free end of the lock tongue.
  • the locking surface can be part of a recess in the lock tongue.
  • the tongue part is provided on the side facing the lock housing with at least one extension which can be inserted into a recess in the end piece.
  • the approach makes it possible to make an exact assignment and alignment of the end piece on the tongue part, for example to avoid twisting or other errors when arranging the end piece.
  • the insert which can be inserted into a recess in the end piece, enables the end piece to be assigned to the tongue part beforehand before the latter is connected to the Lock housing is locked. In particular when using several end pieces, this proves to be particularly advantageous since the operator can first arrange the end pieces on the tongue part before locking the lock housing to the tongue part.
  • the actuating element is formed parallel to the lock tongue in the form of a pin which is displaceably mounted on the tongue part. Since the pin is moved in the direction in which the tongue part and the lock housing are brought together, jamming or tilting, which can lead to a malfunction, are avoided.
  • the actuating element is designed such that the lock tongue is pushed out into the locking position only when the lock housing is fully seated against the tongue part.
  • this extended position can also be achieved when the lock housing and all end pieces are fully seated. It is particularly thought of minimizing or shortening the displacement of the actuating element or the pin in order to prevent an operator from pressing the actuating element with a finger, for example, and subsequently latching the tongue part onto the lock housing.
  • the lock tongue like the pin of the actuating element, can be designed with a rack-shaped structure, a gearwheel being arranged between the pin and the lock tongue. When the pin is displaced, the gear wheel is thus rotated so that the lock tongue is pushed out of the tongue part.
  • the lock tongue and the pin are operationally connected via a plurality of elements which can be moved in a connecting channel. When the pin is moved in the connecting channel, the elements are moved and pressed the lock tongue from the tongue part. Similarly, the lock tongue is pulled into the tongue part by the biasing force of the biasing element, whereby the elements push the pin out of the tongue part.
  • a locking element is provided, by means of which the actuating element is released when the tongue part approaches the lock housing and / or the end part.
  • it can be favorable to provide only one actuating element, but to assign a locking element to each end part. Only when all locking elements have been released by the assignment of the end pieces is there a displacement of the actuating element in order to advance the lock tongue out of the tongue part.
  • the buckle according to the invention thus opens up the possibility of dispensing with an additional ejection mechanism, as was known from the prior art, since when the movable buckle tongue is pulled back, the individual parts of the buckle fall apart and ensure a safe release. Opening the buckle, d. H. releasing at least the tongue part from the belt buckle is thus active and automatic.
  • Another essential advantage of the belt buckle according to the invention is that it is possible to use a commercially available lock housing, so that the belt buckle can be manufactured very inexpensively overall.
  • FIGS. 1 and 2 of a belt buckle comprises a tongue part 4, which is provided with a recess 12 through which a belt, not shown, can be carried out.
  • the belt buckle comprises a buckle housing 1, which is also provided with a recess 13 for the implementation of a belt.
  • an actuation button 2 is mounted, by means of which a bolt 9 is displaceable so that a lock tongue 3 mounted on the tongue part 4 can be pulled out of the lock housing 1.
  • the bolt 9 has a beveled edge, which serves to push the bolt 9 laterally when the lock tongue 3 is pushed in, in order subsequently to place a locking surface 7 of the lock tongue 3 against the bolt 9.
  • the lock housing 1 and in particular the bolt 9 correspond to the known prior art, so that a further detailed explanation can be dispensed with here.
  • the lock tongue 3 is slidably mounted on the tongue part 4, wherein the displacement of the lock tongue 4 takes place via the actuating element 5, which is only shown schematically in FIGS. 1 and 2.
  • the lock tongue 3 can be moved out of the tongue part 4 in the direction of the arrow Y by moving the actuating element 5 in the direction of the arrow Z.
  • 1 and 2 show a state of the belt buckle according to the invention, in which the buckle tongue 3 is in an advanced position, while the actuating element 5 has not yet been fully inserted into the tongue part 4. This representation has been chosen to facilitate understanding of the invention.
  • FIG. 3 shows a further exemplary embodiment or a further development of the belt buckle shown in FIGS. 1 and 2.
  • the embodiment according to FIG. 3 differs from the embodiment shown in FIGS. 1 and 2 in that an extension 8 is formed on the tongue part 4, which is designed in the form of three successive stages.
  • the belt buckle shown in FIG. 3 has three end pieces 11, which are each provided with a recess 10 and can be connected to shoulder straps and a crotch strap.
  • the end pieces 11 are each provided with recesses 33 which are shaped differently and are dimensioned in such a way that they can be pushed onto the individual steps of paragraph 8, as shown in the exploded view shown in FIG. 3. In this way, an incorrect assignment of the individual end pieces 11 is avoided since these can only be pushed onto the extension 8 of the tongue part 4 in a certain order.
  • the lock tongue 3 is in the form of a slidably mounted plate on the tongue part 4, which is provided at its free end with the locking surface 7.
  • the locking surface 7 can either be part of a rectangular recess (FIGS. 4A and 4C), but it is also possible to form the locking surface 7 on the side recesses of the lock tongue 3.
  • a biasing element 6 is also mounted, which can usually be designed in the form of a spring element and either pulls the lock tongue 3 back into the tongue part 4 (FIGS. 4A, 4B) or expresses the actuating element 5 that is operationally connected to the lock tongue 3 (FIG. 4C).
  • the actuating element 5 is designed in the form of a pin, which is displaceably mounted on the tongue part 4 parallel to the lock tongue 3.
  • a pivot lever 16 is mounted in the tongue part 4 and can be pivoted about a pivot bearing 17.
  • the two ends 15 and 18 of the pivot lever 16 are each against the actuating pin 5 and the lock tongue 3.
  • the actuating pin 5 is displaced in the direction of the arrow Z
  • the lock tongue 3 is thus displaced in the direction of the arrow Y.
  • the extension 8 is provided with six gradations, which can each be adapted to the recesses 33 of the end pieces 11. It will be apparent to those skilled in the art that a larger number of end pieces 11 can be arranged on the neck 8, which are dimensioned in their total thickness so that a contact surface 14 of the neck 8 with the outer surface of the end pieces 11 is flat.
  • a connecting channel 21 is formed in the tongue part 4, in which a plurality of elements 20, preferably balls, are arranged.
  • the elements 20 are moved in the channel 21 and press the lock tongue 3 in the direction of the arrow Y.
  • the actuating pin 5, like the lock tongue 3, is provided with teeth 30, 32. Between the actuating pin 5 and the lock tongue 3, a gear 31 is rotatably mounted on the tongue part 4, so that when the pin 5 is moved in the direction of the arrow Z, the Lock tongue 3 is moved in the direction of arrow Y.
  • arrows Z and Y each show a displacement of the actuating element 5 or of the lock tongue 3, as occurs when the belt buckle is closed.
  • the pretensioning force of the pretensioning element 6 causes a displacement in the opposite direction.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)
EP89120913A 1988-11-16 1989-11-10 Boucle de ceinture Withdrawn EP0369354A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883838755 DE3838755C2 (de) 1988-11-16 1988-11-16 Gurtverschluß
DE3838755 1988-11-16

Publications (2)

Publication Number Publication Date
EP0369354A2 true EP0369354A2 (fr) 1990-05-23
EP0369354A3 EP0369354A3 (fr) 1990-08-29

Family

ID=6367254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120913A Withdrawn EP0369354A3 (fr) 1988-11-16 1989-11-10 Boucle de ceinture

Country Status (2)

Country Link
EP (1) EP0369354A3 (fr)
DE (1) DE3838755C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0489950B1 (fr) * 1990-12-11 1994-07-20 Trw Repa Gmbh Fermeture pour ceinture de sécurité de véhicules automobiles
CN106942850A (zh) * 2017-05-05 2017-07-14 四川花间阁文化传媒有限责任公司 榫卯结构带扣

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052415A1 (de) 2010-11-24 2012-05-24 Daimler Ag Sicherungsvorrichtung für einen Sicherheitsgurt und Sicherheitsgurt
DE102011100072A1 (de) 2011-04-29 2012-10-31 Trw Automotive Gmbh Gurtschlossbaugruppe
CN109793317B (zh) * 2017-11-17 2022-04-05 振锋企业股份有限公司 安全带的扣锁装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214026C1 (de) * 1982-04-16 1983-06-01 Daimler-Benz Ag, 7000 Stuttgart Schloss fuer Sicherheitsgurte
DE3510649A1 (de) * 1984-03-23 1985-11-28 Bröderna Holmbergs Fabriks AB, Anderstorp Schloss fuer sicherheitsgurte
EP0225719A1 (fr) * 1985-11-08 1987-06-16 Britax-Excelsior Limited Système de bouclage pour harnais de sécurité

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8327221U1 (de) * 1983-09-22 1984-03-22 van Riesen & Co, 2080 Pinneberg Gurtschloß für ein Sicherheitsgurtsystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214026C1 (de) * 1982-04-16 1983-06-01 Daimler-Benz Ag, 7000 Stuttgart Schloss fuer Sicherheitsgurte
DE3510649A1 (de) * 1984-03-23 1985-11-28 Bröderna Holmbergs Fabriks AB, Anderstorp Schloss fuer sicherheitsgurte
EP0225719A1 (fr) * 1985-11-08 1987-06-16 Britax-Excelsior Limited Système de bouclage pour harnais de sécurité

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0489950B1 (fr) * 1990-12-11 1994-07-20 Trw Repa Gmbh Fermeture pour ceinture de sécurité de véhicules automobiles
CN106942850A (zh) * 2017-05-05 2017-07-14 四川花间阁文化传媒有限责任公司 榫卯结构带扣
CN106942850B (zh) * 2017-05-05 2024-03-08 四川花间阁文化传媒有限责任公司 榫卯结构带扣

Also Published As

Publication number Publication date
DE3838755C2 (de) 1998-03-19
EP0369354A3 (fr) 1990-08-29
DE3838755A1 (de) 1990-05-17

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