FR2721707A1 - Needle and needle indicator. - Google Patents

Needle and needle indicator. Download PDF

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Publication number
FR2721707A1
FR2721707A1 FR9407798A FR9407798A FR2721707A1 FR 2721707 A1 FR2721707 A1 FR 2721707A1 FR 9407798 A FR9407798 A FR 9407798A FR 9407798 A FR9407798 A FR 9407798A FR 2721707 A1 FR2721707 A1 FR 2721707A1
Authority
FR
France
Prior art keywords
index
needle
light
dial
indicator
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
FR9407798A
Other languages
French (fr)
Other versions
FR2721707B1 (en
Inventor
Derry Metais
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.)
Sagem SA
Original Assignee
Sagem SA
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 Sagem SA filed Critical Sagem SA
Priority to FR9407798A priority Critical patent/FR2721707B1/en
Priority to DE19520460A priority patent/DE19520460A1/en
Priority to IT95MI001356A priority patent/IT1275775B1/en
Publication of FR2721707A1 publication Critical patent/FR2721707A1/en
Application granted granted Critical
Publication of FR2721707B1 publication Critical patent/FR2721707B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/28Structurally-combined illuminating devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/12Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting onto the surface to be illuminated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/10Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards
    • B60Q3/14Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for dashboards lighting through the surface to be illuminated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/60Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects
    • B60Q3/62Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides
    • B60Q3/64Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors characterised by optical aspects using light guides for a single lighting device
    • B60K2360/336

Abstract

L'indicateur comprend un cadran (3), un mouvement (2) à l'arrière du cadran (3), une aiguille (4), avec un index (5) à l'avant du cadran (3) et un pied d'entraînement (6) monté sur le mouvement (2), et une source lumineuse (9). L'aiguille (4) est agencée pour recevoir la lumière (12) de la source (9) et rendre l'index visible. Elle est en matériau diffusant. L'invention s'applique aux indicateurs de tableau de bord.The indicator comprises a dial (3), a movement (2) at the back of the dial (3), a hand (4), with an index (5) at the front of the dial (3) and a dowel foot. 'drive (6) mounted on the movement (2), and a light source (9). The needle (4) is arranged to receive the light (12) from the source (9) and make the index visible. It is made of diffusing material. The invention applies to dashboard indicators.

Description

II

Aiguille et indicateur a aiguille.Needle and needle indicator.

Le domaine de l'invention est celui des indicateurs à aiguille, comme on en trouve par exemple dans les tableaux de bord, en particulier les tableaux de bord des véhicules automobiles. Dans ces indicateurs, I'aiguille est en matériau transparent et son éclairage nocturne implique, outre une source de lumière, un conduit de lumière entre l'index de l'aiguille et la source, distinct ou non de l'aiguille (les pieds d'aiguille forment parfois ce conduit de lumière). Un conduit de lumière est un composant qui n'est jamais facile à réaliser. L'éclairage de l'index, pour le rendre homogène, n'est pas non plus facile à obtenir. Enfin, la puissance et l'implantation des sources lumineuses constituent aussi des  The field of the invention is that of pointer indicators, as found for example in dashboards, especially dashboards of motor vehicles. In these indicators, the needle is made of transparent material and its night lighting involves, besides a source of light, a conduit of light between the index of the needle and the source, distinct or not from the needle (the feet of needle sometimes form this conduit of light). A light pipe is a component that is never easy to make. The lighting of the index, to make it homogeneous, is also not easy to obtain. Finally, the power and location of the light sources are also

contraintes dont la demanderesse a cherché à s'affranchir.  constraints which the plaintiff sought to overcome.

La présente demande concerne tout d'abord une aiguille d'indicateur, avec un index et un pied d'entraînement, agencée pour recevoir la lumière d'une source et rendre l'index visible, caractérisée par le fait qu'au moins une couche de  The present application relates first of all to an indicator needle, with an index and a driving foot, arranged to receive light from a source and to make the index visible, characterized in that at least one layer of

l'index est en matériau diffusant.the index is in diffusing material.

Il peut s'agir d'une couche externe, ou peau; il peut s'agir d'une couche interne;  It may be an outer layer, or skin; it may be an inner layer;

de préférence, I'index est réalisé dans sa masse en matériau diffusant.  preferably, the index is made in its mass of diffusing material.

Par matériau diffusant, au sens de la présente invention, on entend i) un matériau à surface mate, dépolie et, plus généralement, un matériau sur lequel une lumière incidente se réfléchit dans toutes les directions en une lumière diffuse ou, ii) un matériau dans lequel une lumière se propage dans toutes les  For the purpose of the present invention, the term "diffusing material" is intended to mean: i) a matt, frosted surface material and, more generally, a material on which an incident light is reflected in all directions in a diffuse light or ii) a material in which a light propagates in all

directions ou, iii) un matériau doté de toutes les caractéristiques précédentes.  directions or, iii) a material with all the above characteristics.

Comme matériau diffusant, on peut considérer le polycarbonate (PC), le polyméthacrylate de méthyle (PMMA), I'acrylo-butadiène-styrène (ABS), tous  As diffusing material, polycarbonate (PC), polymethyl methacrylate (PMMA), acrylonitrile-butadiene-styrene (ABS), can be considered

chargés de pigments.loaded with pigments.

Sans conduit optique ni agencement structurel particulier, I'index de l'aiguille  Without optical conduit or special structural arrangement, the needle index

de l'invention, sous éclairage diurne ou nocturne, apparait très homogène.  of the invention, under day or night lighting, appears very homogeneous.

A cause de l'intégration des pigments (colorés), I'index apparaît coloré sans  Due to the integration of pigments (colored), the index appears colored without

nécessité d'utiliser de source lumineuse colorée.  need to use colored light source.

La présente demande concerne également un indicateur comprenant un cadran, un mouvement à l'arrière du cadran, une aiguille, avec un index à l'avant du cadran et un pied d'entrainement monté sur le mouvement, et une source lumineuse, indicateur caractérisé par le fait qu'il comporte une aiguille telle que caractérisée ci-dessus. Avantageusement, I'indicateur est agencé pour que l'index d'aiguille puisse être éclairé en lumière rasante, lui permettant de mieux encore se détacher du cadran. Dans ce cas, il est préférable qu'une pièce d'habillage soit agencée pour  The present application also relates to an indicator comprising a dial, a movement at the back of the dial, a pointer, with an index at the front of the dial and a foot mounted on the movement, and a light source, indicator characterized in that it comprises a needle as characterized above. Advantageously, the indicator is arranged so that the needle index can be illuminated in grazing light, allowing it to further detach itself from the dial. In this case, it is preferable for a dressing part to be arranged to

réfléchir la lumière de la source sur l'index en lumière rasante.  reflect the light of the source on the index in grazing light.

Il peut aussi être intéressant, dans le cas o la source est disposée à l'arrière du cadran, que le mouvement soit agencé pour réfléchir la lumière de la source  It may also be interesting, in the case where the source is arranged at the back of the dial, that the movement is arranged to reflect the light of the source

sur l'index à travers une ouverture dans le cadran.  on the index through an opening in the dial.

L'invention sera mieux comprise à l'aide de la description suivante faite en  The invention will be better understood with the aid of the following description made in

référence au dessin annexé, sur lequel - la figure 1 est une vue en coupe simplifiée d'un indicateur de tableau de bord de l'invention, - la figure 2 est une vue en coupe de l'index de l'aiguille de l'indicateur de la figure 1, selon la ligne 11-11 et - la figure 3 est une vue analogue à celle de la figure 1 d'une variante de  1 is a simplified sectional view of a dashboard indicator of the invention; FIG. 2 is a sectional view of the index of the needle of the invention; FIG. 1, along the line 11-11 and FIG. 3 is a view similar to that of FIG. 1 of a variant of FIG.

réalisation de l'indicateur de l'invention.  realization of the indicator of the invention.

L'indicateur de la figure 1 est un indicateur de tableau de bord de véhicule  The indicator of Figure 1 is a vehicle dashboard indicator

automobile qui comporte une pièce d'habillage, dite rehaut, 1. L'indicateur lui-  car, which includes a piece of clothing, called a flange, 1. The indicator itself

méme comprend un mouvement 2 sensible à l'information à indiquer, ici un moteur rotatif, en avant du mouvement 2, un cadran 3, en fait une face avant sur laquelle est rapportée une sérigraphie, en avant du cadran 3, un index 5 d'une aiguille 4 comprenant aussi un pied d'entraînement 6 supportant l'index 5 et monté sur l'arbre de sortie 7 du mouvement 2, le pied 6 s'étendant à travers  The same comprises a movement 2 sensitive to the information to be indicated, here a rotary motor, in front of the movement 2, a dial 3, in fact a front face on which is reported a screen printing, in front of the dial 3, a 5 d index a needle 4 also comprising a drive foot 6 supporting the index finger 5 and mounted on the output shaft 7 of the movement 2, the foot 6 extending through

3 27217073 2721707

une ouverture de passage 8 ménagée dans le cadran 3. Le tableau de bord comporte, à l'arrière du cadran 3, deux sources lumineuses 9, 10 qui, de nuit, sont disposées pour éclairer l'index 5, d'une part, en lumière rasante ou quasirasante 12 par réflexion sur la face interne 11 du rehaut 1 et, d'autre part, en lumière oblique et perpendiculaire 13 par réflexion sur une surface 14 ménagée à cet effet sur le mouvement 2 et traversée de l'ouverture 8 du  a passage opening 8 formed in the dial 3. The dashboard has, at the rear of the dial 3, two light sources 9, 10 which, at night, are arranged to illuminate the index finger 5, on the one hand, in grazing or quasi-reflecting light 12 by reflection on the inner face 11 of the flange 1 and, on the other hand, in oblique and perpendicular light 13 by reflection on a surface 14 provided for this purpose on the movement 2 and through the opening 8 of

cadran 3.dial 3.

L'aiguille 4, incluant donc ici son index 5 et son pied 6, est en un matériau o10 diffusant constituant toute sa masse (PC, PMMA ou ABS, par exemple, mélaraé d: pigments colorés). Grâce à la diffusion par l'index 5 de la lumière ambiante, de jour, ou de celle des sources 9, 10, de nuit, cet index 5 apparaît  The needle 4, thus including here its index finger 5 and its foot 6, is a diffusing material o10 constituting all its mass (PC, PMMA or ABS, for example, melaraé d: colored pigments). Thanks to the diffusion by the index 5 of the ambient light, day, or that of the sources 9, 10, night, this index 5 appears

parfaitement homogène et coloré.perfectly homogeneous and colorful.

Le matériau constituant de l'index 5 a par ailleurs une bonne capacité de conduction de la lumière si bien que la lumière pénétrant dans l'index 5 et en sortant participe également à la bonne luminosité de l'index. Celle-ci, dans cette forme de réalisation, est également accrue par la gorge 15 en V formée sur le côté de l'index, tourné vers le cadran 3 et ménageant donc ici deux surfaces de réflexion 16, 17 (une seule conviendrait déjà) pour la lumière rasante parallèle au cadran 3 pénétrant dans la masse de l'index et la réfléchissant pour la faire sortir du côté opposé visible 18 tourné vers  The constituent material of the index 5 also has a good light conduction capacity so that the light penetrating the index 5 and leaving also contributes to the good brightness of the index finger. This, in this embodiment, is also increased by the V-shaped groove 15 formed on the side of the index finger, turned towards the dial 3 and thus providing here two reflection surfaces 16, 17 (only one would already be suitable) for the grazing light parallel to the dial 3 penetrating the mass of the index finger and reflecting it to make it leave the opposite side visible 18 turned towards

l'observateur, en l'occurence le conducteur.  the observer, in this case the driver.

L'indicateur de la figure 3, sur laquelle les références de la figure 1 ont été reportées pour désigner les mêmes éléments, ne se distingue de celui de la figure 1 que par l'anneau transparent 20 à section triangulaire disposé en périphérie du cadran 3, pour mieux drainer la lumière des sources 9, 10 vers l'index 5 et augmenter ainsi la puissance de l'éclairage rasant et donc la luminosité de l'index 5. L'anneau 20 pourrait être coloré. On notera qu'il s'agit d'un simple élément de renvoi de lumière et non d'un conduit optique au sens  The indicator of FIG. 3, on which the references of FIG. 1 have been plotted to designate the same elements, is distinguished from that of FIG. 1 only by the transparent ring 20 with triangular section disposed on the periphery of the dial 3 , to better drain the light sources 9, 10 to the index 5 and thus increase the power of the grazing light and thus the brightness of the index 5. The ring 20 could be colored. Note that this is a simple light return element and not an optical conduit in the sense

généralement entendu.usually heard.

Claims (11)

REVENDICATIONS 1. Aiguille d'indicateur, avec un index (5) et un pied d'entraînement (6), agencée pour recevoir la lumière (12) d'une source (9) et rendre l'index visible, caractérisée par le fait qu'au moins une couche de l'index (5) est en matériau diffusant.  1. Indicator needle, with an index (5) and a drive foot (6), arranged to receive the light (12) of a source (9) and make the index visible, characterized in that at least one layer of the index (5) is of diffusing material. 2. Aiguille selon la revendication 1, dans laquelle la couche est une couche externe.The needle of claim 1, wherein the layer is an outer layer. 3. Aiguille selon -la r.vercica:jion 1 cans laquele la couche est une couche interne.3. Needle according to r.vercica: jion 1 cans laqueleel the layer is an inner layer. 4. Aiguille selon l'une des revendications 1 à 3, dans laquelle l'index (5) est  4. Needle according to one of claims 1 to 3, wherein the index (5) is réalisé dans sa masse en matériau diffusant.  realized in its mass of diffusing material. 5. Aiguille selon l'une des revendications 1 à 4, dans laquelle le matériau  5. Needle according to one of claims 1 to 4, wherein the material diffusant est choisi parmi le polycarbonate chargé de pigments, le polyméthacrylate de méthyle chargé de pigments, I'acrylo-butadiènestyrène  diffusing agent is chosen from polycarbonate loaded with pigments, polymethyl methacrylate loaded with pigments, acrylonitrile butadiene styrene; chargé de pigments.loaded with pigments. 6. Indicateur comprenant un cadran (3), un mouvement (2) à l'arrière du cadran (3), une aiguille (4), avec un index (5) à l'avant du cadran (3) et un pied d'entraînement (6) monté sur le mouvement (2), et une source lumineuse (9), indicateur caractérisé par le fait qu'il comporte une aiguille (4) selon l'une des  6. Indicator comprising a dial (3), a movement (2) at the back of the dial (3), a needle (4), with an index (5) at the front of the dial (3) and a d drive (6) mounted on the movement (2), and a light source (9), indicator characterized by the fact that it comprises a needle (4) according to one of the revendications 1 à 5.Claims 1 to 5. 7. Indicateur selon la revendication 6, dans lequel l'index d'aiguille (5) est  The indicator of claim 6, wherein the needle index (5) is disposé pour pouvoir être éclairé en lumière rasante (12).  disposed to be illuminated in grazing light (12). 8. Indicateur selon la revendication 7, dans lequel un rehaut d'habillage (1)  8. Indicator according to claim 7, wherein a dressing flange (1) réfléchit la lumière de la source (9) sur l'index (5) en lumière rasante (12).  reflects light from the source (9) on the index (5) in grazing light (12). 9. Indicateur selon l'une des revendications 6 à 8, dans lequel le mouvement  9. Indicator according to one of claims 6 to 8, wherein the movement (2) est agencé pour réfléchir la lumière de la source (9) sur l'index (5) à travers  (2) is arranged to reflect light from the source (9) on the index (5) through une ouverture (8) dans le cadran (3).  an opening (8) in the dial (3). 10. Indicateur selon l'une des revendications 6 à 9, dans lequel au moins une  10. Indicator according to one of claims 6 to 9, wherein at least one surface de réflexion (16, 17) est ménagée sur le côté de l'index (5) tourné vers  reflecting surface (16, 17) is provided on the side of the index (5) facing towards le cadran (3).the dial (3). 11. Indicateur selon l'une des revendications 6 à 10, dans lequel un renvoi de  11. Indicator according to one of claims 6 to 10, wherein a reference of lumière (20) est disposé en périphérie du cadran (3).  light (20) is disposed at the periphery of the dial (3).
FR9407798A 1994-06-24 1994-06-24 Needle and needle indicator. Expired - Fee Related FR2721707B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9407798A FR2721707B1 (en) 1994-06-24 1994-06-24 Needle and needle indicator.
DE19520460A DE19520460A1 (en) 1994-06-24 1995-06-03 Instrument display needle
IT95MI001356A IT1275775B1 (en) 1994-06-24 1995-06-23 NEEDLE AND NEEDLE INDICATOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9407798A FR2721707B1 (en) 1994-06-24 1994-06-24 Needle and needle indicator.

Publications (2)

Publication Number Publication Date
FR2721707A1 true FR2721707A1 (en) 1995-12-29
FR2721707B1 FR2721707B1 (en) 1996-08-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9407798A Expired - Fee Related FR2721707B1 (en) 1994-06-24 1994-06-24 Needle and needle indicator.

Country Status (3)

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DE (1) DE19520460A1 (en)
FR (1) FR2721707B1 (en)
IT (1) IT1275775B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013001329A1 (en) 2013-01-26 2014-07-31 Audi Ag Display device for motor vehicle, particularly passenger car, has pointer lug which surrounds partial area of display element under formation of circumferentially closed structure of pointer lug

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2336458A (en) * 1998-04-14 1999-10-20 Ford Motor Co Electronic device with display and receptacle for a removable information storage medium
DE19938336A1 (en) * 1999-08-13 2001-03-15 Trw Automotive Electron & Comp Measurement works for a dial-type indicator instrument, especially for use in vehicle type dashboard displays, has a light source for the illuminating needle mounted within the works housing to conserve space and simplify design
US6446518B1 (en) 2000-11-09 2002-09-10 Michael G. Hamilton Industrial diagnostic gauges for reading in no light and low light conditions and methods of reading and manufacturing same
US6415672B1 (en) * 2000-11-09 2002-07-09 Michael G. Hamilton Industrial diagnostic gauges for reading in no light and low light conditions and methods of reading same
US6516678B2 (en) 2000-11-09 2003-02-11 Michael G. Hamilton Industrial diagnostic gauge indicator insert and industrial diagnostic gauges having same
EP1319553B1 (en) * 2001-12-14 2017-02-08 Visteon Global Technologies, Inc. Vehicle instrument
DE102013000821A1 (en) 2013-01-18 2014-07-24 Audi Ag Display device for motor vehicle, has light guide for guiding light radiated from light source or light source, which is spaced from and partially arranged in longitudinal direction of pointer flag opposite to end of pointer flag

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0295165A1 (en) * 1987-05-25 1988-12-14 Jaeger Illuminated pointer, in particular for vehicle dashboards
EP0301439A2 (en) * 1987-07-31 1989-02-01 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Meter device for vehicle
US4807090A (en) * 1986-12-08 1989-02-21 Stewart Warner Corporation Instrument illumination system
EP0327668A2 (en) * 1988-02-11 1989-08-16 VDO Adolf Schindling AG Indicating instrument
DE4310605A1 (en) * 1992-03-31 1993-10-07 Yazaki Corp Motor vehicle display device e.g. for speedometer - has character plate with transparent region, needle plate element with needle slot in opaque plate, and back lighting source

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4807090A (en) * 1986-12-08 1989-02-21 Stewart Warner Corporation Instrument illumination system
EP0295165A1 (en) * 1987-05-25 1988-12-14 Jaeger Illuminated pointer, in particular for vehicle dashboards
EP0301439A2 (en) * 1987-07-31 1989-02-01 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Meter device for vehicle
EP0327668A2 (en) * 1988-02-11 1989-08-16 VDO Adolf Schindling AG Indicating instrument
DE4310605A1 (en) * 1992-03-31 1993-10-07 Yazaki Corp Motor vehicle display device e.g. for speedometer - has character plate with transparent region, needle plate element with needle slot in opaque plate, and back lighting source

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013001329A1 (en) 2013-01-26 2014-07-31 Audi Ag Display device for motor vehicle, particularly passenger car, has pointer lug which surrounds partial area of display element under formation of circumferentially closed structure of pointer lug

Also Published As

Publication number Publication date
ITMI951356A1 (en) 1996-12-23
IT1275775B1 (en) 1997-10-17
ITMI951356A0 (en) 1995-06-23
FR2721707B1 (en) 1996-08-23
DE19520460A1 (en) 1996-01-04

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