EP3302161A1 - Boucle de ceinture éclairée pour système de ceinture de sécurité d'un véhicule automobile - Google Patents

Boucle de ceinture éclairée pour système de ceinture de sécurité d'un véhicule automobile

Info

Publication number
EP3302161A1
EP3302161A1 EP16727521.3A EP16727521A EP3302161A1 EP 3302161 A1 EP3302161 A1 EP 3302161A1 EP 16727521 A EP16727521 A EP 16727521A EP 3302161 A1 EP3302161 A1 EP 3302161A1
Authority
EP
European Patent Office
Prior art keywords
light
insertion slot
housing
illuminated
light guide
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
EP16727521.3A
Other languages
German (de)
English (en)
Other versions
EP3302161B1 (fr
Inventor
Arndt SÖHNCHEN
Iulian Rotariu
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.)
Autoliv Development AB
Original Assignee
Autoliv Development AB
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 Autoliv Development AB filed Critical Autoliv Development AB
Publication of EP3302161A1 publication Critical patent/EP3302161A1/fr
Application granted granted Critical
Publication of EP3302161B1 publication Critical patent/EP3302161B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • A44B11/2546—Details
    • A44B11/2565—Illuminated buckles
    • 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 present invention relates to an illuminated belt buckle for a safety belt device of a motor vehicle having the features of the preamble of claim 1.
  • Belt buckles for safety belt devices of motor vehicles generally serve to securely lock a belt tongue that is displaceably guided on a belt strap or firmly connected to one end of a belt strap.
  • the buckle on an insertion slot for the belt tongue and a detachable via a push button locking mechanism.
  • the locking mechanism is spring-loaded and locks the belt tongue automatically when inserted into the insertion slot.
  • the occupant pushes the push button down, whereby the locking mechanism is released and the belt tongue is ejected by a released spring force of the locking mechanism.
  • Such buckles have long been state of the art.
  • a problem of such belt buckles is that in the seat for buckling the relatively narrow insertion slot of the buckle must find in which he introduces the belt tongue for buckling the seat belt.
  • the light entry surface of the Iicht meetden material in this position is not technically connected due to manufacturing deviations or mechanical influences with the external light source, the light is not or not fully introduced into the push button, so that the push button itself does not light or weaker than is desired ,
  • a light guide having at least two light emitting surfaces, which are arranged at the ends of the insertion slot.
  • the light-emitting surfaces themselves have a triangular shape and are arranged in a free triangular-shaped surface of the front side of the housing between the edge of the housing and a conical side surface of the push-button.
  • the light-emitting surfaces are dimensioned in particular so that they fill the free surfaces in the corners of the front side of the housing as large as possible to achieve the greatest possible luminosity.
  • the object of the invention is to provide an illuminated belt buckle of the generic type, in which the buckle and the push button for the arrival and Abschnallvorgang are particularly easy to find.
  • an illuminated belt buckle with the Merkmaien of claim 1 is proposed. Further preferred embodiments of the invention can be found in the subclaims, the figures and the associated description.
  • the light emission surface on the belt buckle has a linear contour whose shape is adapted to the shaping of an edge side of the pushbutton arranged laterally in the direction of view of the insertion slot.
  • the advantage of the proposed solution lies in the fact that the finding of the GurtSchlosses and in particular the push button is firstly simplified due to the lighting itself. Secondly, in addition, the position of the push button due to the shape of the light emitting surface is characterized, so that the finding and pressing the push button is simplified.
  • the occupant can find the push button simplified by the position of the illuminating light-emitting surface.
  • the occupant can release the buckle by being virtually "blinded" to the area next to it
  • the actuation of the push button is facilitated by the fact that the buckle in the strapped normal pitch as well as in the unloaded or unbelted position has a basic orientation, in which the push button is always located on the same side of the light emitting surface.
  • the insertion slot in turn always arranged in a fixed orientation to the push button is, this can also be found simplified for the seat belt.
  • the light-emitting surface extend to one of the ends of the insertion slot.
  • the occupant can find the insertion slot in knowledge of the orientation to the light emitting surface after a certain exercise particularly easy by mentally extending the light emitting surface and introduces the belt tongue there in the mentally extended position accordingly.
  • the insertion slot is thereby deliberately illuminated at one end, so that the insertion slot itself can be seen improved for the occupant.
  • the finding can be particularly simplified by the light emitting surface having an identical or smaller width than the insertion slot.
  • the glowing Lichtabstrahl surface is thus identically wide or even narrower than de insertion slot, so that the occupant can position the belt tongue in their transverse alignment for buckling simplified position by the belt tongue approximately over the mentally extended portion of the light emitting surface aligns ⁇ tet. Due to the proposed width of Lichtabstrahlflä surface, the belt tongue is then in the transverse direction of the insertion slot on the insertion slot and then only has to be plugged.
  • two light emitting surfaces may preferably be provided on the buckle, which are arranged on different, opposite edge sides of the push button.
  • the pushbutton is thereby framed on both sides by the two light emitting surfaces, so that the position of the pushbutton between see the light emitting surfaces is clearly defined and thus particularly easy to find in bright light emitting surfaces.
  • the pushbutton itself must not be recognizable, the occupant merely has to press with his finger on the surface located between the luminous light emitting surfaces to release the belt tongue and initiate the peeling process.
  • the light emitting surfaces may preferably be formed symmetrically to a center axis of the push button.
  • the pushbutton or the buckle can be illuminated very evenly.
  • the light-emitting surfaces are preferably dimensioned identically large and identically shaped so that the light emitted by the light emitting surfaces are identical in the intensity and distribution of the light given an identical surface-related luminous intensity of the light-emitting surfaces.
  • the insertion slot may have a shorter length than the width of the pushbutton aligned parallel to the longitudinal extension of the insertion slot, and the light emission surfaces on the edge sides of the pushbutton may be designed to converge towards the ends of the insertion slot.
  • the insertion slot is therefore deliberately shorter than the width of the buckle formed, so that in a correspondingly central arrangement of the insertion slot between the ends of the insertion slot and the edge of the housing in the longitudinal direction of the insertion slot, a distance is present. This distance is now filled by the light emitting surfaces arranged therein. As a result, the light-emitting surfaces in these sections run toward one another and point in the direction of the insertion slot and frame at the same time. tig the pushbutton.
  • the pushbutton to be actuated, on the one hand, and the position of the insertion slot, on the other hand, are made more marked. If, for example, the light emission surfaces converge toward one another at an oblique angle, the two luminous light emission surfaces can optically form an arrow whose blunt tip is formed by the insertion slot or which points to the side of the pushbutton on which the insertion slot is arranged.
  • the light emitting surfaces may extend to the ends of the insertion slot and enclose the insertion slot between them.
  • the insertion slot thereby forms an imaginary connection between the light emitting surfaces, so that it can be found particularly easy after a corresponding exercise of the occupant.
  • the light emission surface can preferably be arranged on a light guide body which is fixedly arranged on the housing.
  • the proposed solution is preferred in that the light source itself can thereby be arranged at a location independent of the light-emitting surface.
  • the light-guiding body can preferably have a fixing section fixed in a wall of the housing and a coupling-in section projecting into a cavity arranged inside the housing, the light-emitting surface being arranged on the fixing section and on the coupling section a light entry surface. Due to the proposed solution, the light guide body can be attached to the Gurtschioss particularly simple by the Lichtleitabites is used with the fixing in a corresponding recess of the housing or in a 2K injection process of the plastic of the housing in the region of the xierabiteses is overmolded. At the same time, the fixing section is used by the light emitting surface arranged thereon for coupling the light out of the light guide body.
  • the arrangement of the light emission surface on the fixing section is particularly advantageous insofar as the light emission surface is thereby fixed particularly well with respect to the housing and, in particular, is arranged in a particularly exact position relative to the housing.
  • the light guide is thereby fixed to the housing practically directly with the light emitting surface having portion.
  • the coupling-in section then serves, on account of the light entry surface arranged thereon, for the coupling of the light into the light guide body.
  • the light guide can be further fixed relative to the housing by the light guide is shaped so that it rests with the coupling portion at least partially flat against an inner wall of the housing.
  • the light guide body is additionally supported laterally in the region of the coupling-in section relative to the housing.
  • the light emission surface is preferably larger than the light entry surface.
  • the light is thereby practically widened in the light guide and distributed over a larger area.
  • a larger luminous area can be created to identify the pushbutton and the insertion slot.
  • the luminance of the Lichtab ⁇ beam surface is reduced in relation to the luminance of entering the Lichtein ⁇ tread surface luminous flux, but this is acceptable insofar as emerging from the Lichtabstrahl Structure luminous flux only the identification of the pushbutton or the Ein manufacturedschiit zes and not the vignetting ⁇ ing the environment is used.
  • the fixing section with the light-emitting surface arranged thereon can thereby be made larger.
  • the light guide body can be designed to widen conically, as a result of which the luminous flux in the light guide body is widened as homogeneously as possible. It is sufficient if the light guide body is conically shaped in a section between the light entry surface and the light emission surface in the basic form.
  • the light guide body may preferably be formed from a dimensionally stable, light transparent plastic part.
  • a dimensionally stable, light transparent plastic part Such art fabrics are e.g. Polycarbonate or PMMA.
  • the optical waveguide can be made very inexpensively.
  • it can be manufactured in a complex shape with a sufficient dimensional stability, so that it can be fixed well and shaped according to the shape of the light emission to be realized.
  • the light source can preferably be connected to the light guide body via a light guide, so that the light source can be fastened to the seat belt lock at a greater distance from the light guide body and, in particular, at a location favorable for attachment and electrical contact is independent of the location of the light guide and in particular of the location of the light emitting surface.
  • the light guide having a light source associated with the light inlet surface and two separate light exit surfaces, wherein each one of the light exit surfaces is associated with a light entry surface of a light guide.
  • the proposed solution will Distributed into the light guide coupled light on two light exit surfaces and from these in the two Lichtleit kör he coupled.
  • the light guide thus practically forms a branch of the luminous flux emanating from the light source.
  • a single light source for illuminating the two light emitting surfaces of the light guide body can be used ver. If additional light emitting surfaces are to be provided on the buckle, they can be coupled by further light guides or by further branches in the light guide to the luminous flux of the light source who the.
  • the light guide starting from the light entry surface, can preferably branch into two branches which are separate from one another, one of the light exit surfaces being assigned to one of the branches in each case.
  • the branches of the light guide serve separate guidance of the two streams of light separated from the branching to the light entry surfaces of the light guide, while the branches of the light guide can be arbitrarily shaped and moved by a flexible design of the light guide in the buckle depending on the available space become .
  • 1 shows a housing of a buckle with two Lichtab ⁇ radiating surfaces in an oblique view.
  • 2 shows a housing with two light emitting surfaces in a first embodiment in view of the insertion slot and
  • FIG 3 shows a housing with two light emission surfaces in a second embodiment in view of the insertion slot.
  • a half of a housing 1 of a buckle of a seat belt device for a vehicle can be seen.
  • a push button 2 is provided which is guided displaceably in the housing 1 and accessible through an opening 28 on the end face of the housing 1.
  • a locking mechanism not shown for clarity is also provided, which can be solved by depressing the push button 2 or insertion of the push button 2 in the housing 1.
  • a second half not shown, so that the locking mechanism is included to all sides of the housing. 1
  • the push button 2 and the opening 28 of the housing 1 are dimensioned such that between the push button 2 and a rim portion 23 of the housing 1, an insertion slot 12 is present, in which a belt tongue of the seat belt device for locking in the locking mechanism of the buckle is insertable.
  • the insertion slot 12 is thereby bounded laterally by the pushbutton 2 on one side and on the other side by the edge portion 23 of the housing 1, as can also be seen in FIGS. 2 and 3.
  • the length L of the insertion slot 12 is shorter than the width B of the push button 2 dimensioned in the direction of the longitudinal direction of the insertion slot 12, wherein the Insertion slot 12 is arranged approximately centrally of the push button 2, so that the push button 2 projects beyond the insertion slot 12 in the longitudinal direction in both directions.
  • two slots 10 and 11 are provided in the housing 1, which have a matched to the course of the adjacent edge sides 24 and 25 of the push button 2 course ⁇ see Fig. 2 and Fig. 3).
  • the shape of the opening 28 in the housing 1 corresponds at least approximately to the cross-sectional shape of the push button 2, so that the slots 10 and 11 are also parallel to the edges 28 of the housing 1 forming the opening.
  • a unilaterally open receptacle 29 is provided, in which a support plate 4 with a mounted thereon
  • Light source 3 can be fastened in the form of an LED.
  • various storage and computation modules for controlling the light source 3 and / or for processing further signals such as e.g. a buckle switch, be provided.
  • a light guide 5 and two light guide bodies 8 and 9 are provided in the housing 1.
  • the light guide bodies 8 and 9 are formed of a dimensionally stable, transparent plastic, such as polycarbonate or PMMA, with light-conducting properties and each have a fixing section 19 and 20 and a coupling-in section 21 and 22.
  • the fixing portions 19 and 20 are formed in the cross-sectional shape corresponding to the shape of the slits 10 and 11, so that the light guide 8 and 9 can be inserted with the fixing portions 19 and 20 respectively from the inside of the housing 1 in one of the slots 10 and 11 , Alternatively, however, the optical waveguides 8 and 9 can also be overmoulded by the plastic of the housing 1 in a 2K injection process.
  • the light guide body 8 and 9 have in the transition from the Fixing portions 19 and 20 on the coupling portions 21 and 22 a step, which limit the insertion depth of the light guide 8 and 9 with the fixing portions 19 and 20 in the slots 10 and 11.
  • the limited by the step insertion depth of the fixing portions 19 and 20 is dimensioned so that the end faces of the fixing portions 19 and 20 in the fastened position with the adjacent surface of the housing 1 to the outside form a homogeneous, continuous surface.
  • the outer sides of the coupling portions 21 and 22 of the light guide 8 and 9 are further shaped so that the
  • the fixing portions 19 and 20 are formed in cross-section so that they fill the slots 10 and 11 completely and completely.
  • the light guide 8 and 9 are at the end faces of the coupling sections 21 and 22 with light inlet surfaces 15 and 16 and at the end faces of the fixing sections 19 and 20 with light emitting surfaces 13 and 14 versehe.
  • the optical fiber 5 has a light inlet surface 27 which is opposite to 5 the light source 3 in the mounted position of the light guide so that entering from the light source 3 from ⁇ light radiated into the optical waveguide.
  • the light emitted from the light source 3 is first forwarded in an initial section of the light guide 5 to a branching point in which the light guide 5 branches into two branches 6 and 7.
  • the light is then forwarded further in the branches 6 and 7 in each case to a light exit surface 17 and 18 at the end sides of the branches 6 and 7.
  • the branches 6 and 7 are dimensioned and flexible in that they in the cavity 26 of the housing 1 according to the available space conditions can be laid in a curved course.
  • the branches 6 and 7 are dimensioned in length and laid in such a way that the light exit surfaces 17 and 18 at the end faces of the branches 6 and 7, the light entry surfaces 15 and 16 of the coupling sections 21 and 22 are opposite.
  • the light emitted by the light source 3 is thus initially introduced through the light entry surface 27 into the light guide 5, then further through the branches 6 and 7 to the light exit surfaces
  • the Lichteintrittsfikieen 27, 15 and 16 and the light exit surfaces 17 and 18 and the Lichtabstrahlfest 13 and 14 may be formed by a corresponding surface processing roughened surfaces, which, for example. can be realized by a chemical etching or by a mechanical processing.
  • the proposed solution of using a central light source 3, a light guide 5 and the two light-guiding bodies 8 and 9 has the advantage that the light source 3 can be arranged with the support plate 4 at a convenient location for holding and contacting, and that the light over the light guide 5 and the light guide 8 and 9 can be passed to a predetermined location and emitted there.
  • the placement of the light source 3 and the location of the light emitting surfaces 13 and 14 can be selected practically independently.
  • the light emitting surfaces 13 and 14 may also be formed by self-illuminating, electrically activatable films or by gas-filled light sources.
  • the light emitting surfaces 13 and 14 are linearly thoroughly manufactured ⁇ det and have a to the adjacent edge sides 24 and 25th the pushbutton adapted course, as can be seen in Figs. 2 and Fig. 3. Further, the light emitting surfaces 13 and 14 extend to the ends of the insertion slot 12 and include the insertion slot 12 between them. The light emitting surfaces 13 and 14 and the insertion slot 12 thereby form practically a pushbutton 2 on three sides comprehensive line.
  • the light emitting surfaces 13 and 14 preferably have an identical or smaller width than the insertion slot 12 so that the occupant hits the insertion slot 12 with the belt tongue in each case when he the belt tongue with the front side via a light emitting surfaces 13 and 14 interconnecting Positioned and then moved in the direction of the belt lock.
  • the light emitting surfaces 13 and 14 include the end face located in the opening 28 of the housing 1 by the push button 2, so that the occupant can easily hit the push button 2 even in the dark simply by pressing on the surface between the light emitting surfaces 13 and 14 ,
  • the push button 2 has a conically tapering on one side in the direction of Einzhouschiitzes 12 shape.
  • the edge sides 24 and 25 are shaped so that they run towards each other in the direction of the insertion slot 12.
  • the slots 10 and 11 and arranged therein light emitting surfaces 13 and 14 of the light guide 8 and 9 are aligned approximately parallel to the edge sides 24 and 25 and thus also extend in the direction of Ein manufacturedschlitzes 12.
  • the Lichtabstrahlflachen 13 and 14 together form a in the direction the Ein manufacturedschiitzes 12 directed arrow shape.
  • the light-emitting surfaces 13 and 14 extend in the direction of the insertion slot 12 almost to its ends, so that they guide the user visually to the Ein scatteredschiitz 12.
  • FIG. 3 shows an alternative embodiment of the invention, in which the push-button 2 has a rectangular cross-sectional shape.
  • the slots 10 and 11 and arranged therein Lichtabstrahldus 13 and 14 are also formed parallel to the nearest edge sides 24 and 25 of the push button 2 extending.
  • the slots 10 and 11 and the Lichtabstrahltlachen 13 and 14 each extend around a corner of the push button 2 and have an L-shape, wherein these are arranged so that two of the legs parallel to each other and two of the legs are directed towards each other.
  • the light emitting surfaces 13 and 14, the two lateral edge sides 24 and 25 and the two adjacent to the insertion slot 12 portions of the insertion slot 12 facing edge side of the push button 2.
  • the push button 2 Since the insertion slot 12 has a shorter length L than the width B directed in this direction Push button 2, the push button 2 dominates the insertion slot 12 beyond the ends thereof. Thus, the light emitting surfaces 13 and 14 run toward each other in the direction of the ends of the Ein manufacturedschlitzes 12 and thereby frame the push button 2, making it visually particularly well identified.
  • Both embodiments have in common that the actuating surface of the push button 2, the insertion slot 12, the end face of the housing 1 and the Lichtabstrahldon 13 and 14 are symmetrical to a through the center of the insertion slot 12 and the center of the push button 2 extending center axis M shaped and aligned.

Landscapes

  • Buckles (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

La présente invention concerne une boucle de ceinture éclairée pour un système de ceinture de sécurité d'un véhicule automobile, ladite boucle comprenant un boîtier (1) doté d'un bouton-poussoir (2) déplaçable, une fente d'insertion (12) délimitée par une section de bord (23) du boîtier (1) et par le bouton-poussoir (2), et permettant l'insertion de la languette destinée à se verrouiller dans la boucle, et au moins une surface de réflexion de lumière (13, 14), la surface de réflexion de lumière (13, 14) présentant un contour en forme de ligne dont la forme suit la conformation d'une section de bord latéral (24) du bouton-poussoir (2).
EP16727521.3A 2015-06-08 2016-06-08 Boucle de ceinture éclairée pour système de ceinture de sécurité d'un véhicule automobile Active EP3302161B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015210450.8A DE102015210450A1 (de) 2015-06-08 2015-06-08 Beleuchtetes Gurtschloss für eine Sicherheitsgurteinrichtung eines Kraftfahrzeuges
PCT/EP2016/062988 WO2016198432A1 (fr) 2015-06-08 2016-06-08 Boucle de ceinture éclairée pour système de ceinture de sécurité d'un véhicule automobile

Publications (2)

Publication Number Publication Date
EP3302161A1 true EP3302161A1 (fr) 2018-04-11
EP3302161B1 EP3302161B1 (fr) 2019-08-07

Family

ID=56108667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16727521.3A Active EP3302161B1 (fr) 2015-06-08 2016-06-08 Boucle de ceinture éclairée pour système de ceinture de sécurité d'un véhicule automobile

Country Status (6)

Country Link
US (1) US10383406B2 (fr)
EP (1) EP3302161B1 (fr)
JP (1) JP6656775B2 (fr)
KR (1) KR102043033B1 (fr)
DE (1) DE102015210450A1 (fr)
WO (1) WO2016198432A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016204961B4 (de) * 2016-03-24 2022-08-11 Autoliv Development Ab Beleuchtetes Gurtschloss für eine Sicherheitsgurteinrichtung eines Kraftfahrzeuges

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63106307U (fr) * 1986-12-27 1988-07-09
DE3904125A1 (de) 1988-02-13 1989-08-24 Autoflug Gmbh Ausgeleuchteter sicherheitsgurtverschluss
US5892436A (en) * 1996-11-08 1999-04-06 Trw Inc. Illuminated seat belt buckle
US20070236917A1 (en) * 2006-04-07 2007-10-11 Tk Holdings Inc Lighted soft touch buckle for restraint system
DE102007047704B4 (de) 2007-10-05 2018-03-01 Autoliv Development Ab Beleuchtetes Gurtschloss für einen Fahrzeugsicherheitsgurt
US20120089302A1 (en) * 2010-10-06 2012-04-12 Griffin John A Illuminated seat belt receptacle
DE202012012254U1 (de) 2012-12-20 2013-02-22 Key Safety Systems, Inc. Gurtschloss für einen Fahrzeugsicherheitsgurt
DE102013003978B4 (de) * 2013-03-08 2022-06-09 Zf Automotive Germany Gmbh Gurtschloss und Verfahren zum Montieren eines Gurtschlosses
CN106572724B (zh) * 2014-07-15 2020-08-21 Trw汽车股份有限公司 安全带锁

Also Published As

Publication number Publication date
US20180192744A1 (en) 2018-07-12
KR102043033B1 (ko) 2019-11-12
US10383406B2 (en) 2019-08-20
EP3302161B1 (fr) 2019-08-07
JP2018524050A (ja) 2018-08-30
WO2016198432A1 (fr) 2016-12-15
DE102015210450A1 (de) 2016-12-08
JP6656775B2 (ja) 2020-03-04
KR20180014035A (ko) 2018-02-07

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