FR2744801A1 - Indicator assembly for use in vehicle dashboard - Google Patents

Indicator assembly for use in vehicle dashboard Download PDF

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Publication number
FR2744801A1
FR2744801A1 FR9601679A FR9601679A FR2744801A1 FR 2744801 A1 FR2744801 A1 FR 2744801A1 FR 9601679 A FR9601679 A FR 9601679A FR 9601679 A FR9601679 A FR 9601679A FR 2744801 A1 FR2744801 A1 FR 2744801A1
Authority
FR
France
Prior art keywords
indicator
dial
front face
pins
orifice
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
FR9601679A
Other languages
French (fr)
Other versions
FR2744801B1 (en
Inventor
Serge Giannitrapani
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 FR9601679A priority Critical patent/FR2744801B1/en
Publication of FR2744801A1 publication Critical patent/FR2744801A1/en
Application granted granted Critical
Publication of FR2744801B1 publication Critical patent/FR2744801B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING 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
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G01D13/02—Scales; Dials
    • G01D13/04—Construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/60—Instruments characterised by their location or relative disposition in or on vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Instrument Panels (AREA)

Abstract

The indicator comprises a motor movement (1) supporting an indicator hand axle (2). This axle passes through a hole in a front panel (3) which may be the vehicle dashboard. A printed film (4) lies on the front of this panel and serves as the calibrated dial for the indicator. The aperture in the printed film is larger than that in the front panel (3). The front panel includes three projecting pins (3,5,7) which are moulded into the face, spaced from each other by 120 degrees. The three pins may alternatively be replaced by a circular collar also moulded as part of the front panel. A further version may include a section of circular collar and a pin.

Description

INDICATEUR A CADRAN
L'invention concerne un indicateur à cadran, comme on en trouve sur les tableaux de bord, par exemple ceux des véhicules automobiles et notamment les compteurs de vitesse, compte-tours, jauges.DIAL INDICATOR
The invention relates to a dial indicator, as found on dashboards, for example those of motor vehicles and in particular speedometers, tachometers, gauges.

Plus précisement, l'invention concerne un indicateur comprenant une face avant avec, d'un côté, un mouvement, pourvu d'une aiguille indicatrice montée sur un axe d'entraînement s'étendant à travers la face avant, et, de l'autre côté, un cadran percé d'un orifice de passage de l'axe de l'aiguille.More specifically, the invention relates to an indicator comprising a front face with, on one side, a movement, provided with an indicator needle mounted on a drive shaft extending through the front face, and, on the other hand, a dial pierced with an orifice for the passage of the axis of the needle.

Les cadrans sont généralement en matière plastique du type polycarbonate, par exemple de la marque protégée "lexan".The dials are generally made of plastic material of the polycarbonate type, for example of the protected mark "lexan".

Une bonne solution consiste à coller le cadran sur la face avant. Mais cette solution est chère. On a déjà proposé de clipser le cadran à sa périphérie extérieure. Mais les conditions climatiques et l'instabilité dimensionnelle relative de ses éléments, provoquent le gondolage du cadran. Alors, l'aiguille frotte sur le cadran avec même le risque qu'elle ne se bloque et l'inconvénient d'un renvoi obligatoire du cadran en usine.A good solution is to stick the dial on the front face. But this solution is expensive. It has already been proposed to clip the dial to its outer periphery. However, the climatic conditions and the relative dimensional instability of its elements cause the dial to warp. Then, the needle rubs on the dial with even the risk that it will jam and the disadvantage of a mandatory return of the dial to the factory.

L'invention vise à s'affranchir de ce risque et de cet inconvénient.The invention aims to overcome this risk and this drawback.

A cet effet, l'invention concerne un indicateur du type précisé cidessus, caractérisé par le fait que la face avant comporte des moyens agencés pour coopérer avec le bord de l'orifice du cadran et le déformer.To this end, the invention relates to an indicator of the type specified above, characterized in that the front face comprises means arranged to cooperate with the edge of the orifice of the dial and to deform it.

Grâce à la déformation de sa périphérie intérieure, le cadran est précontraint et ne peut plus gondoler.Thanks to the deformation of its inner periphery, the dial is prestressed and can no longer curl.

Les moyens de déformation du bord de l'orifice du cadran peuvent comporter - une pluralité de pions, au moins deux, - une collerette, - au moins un pion et une portion de collerette, avantageusement sortis de moule avec la face avant.The means of deformation of the edge of the orifice of the dial may include - a plurality of pins, at least two, - a collar, - at least one pin and a portion of collar, advantageously removed from the mold with the front face.

L'invention sera mieux comprise à l'aide de la description suivante et du dessin en annexe, sur lequel la figure 1 représente une vue en coupe d'une première forme de réalisation de l'invention; la figure 2 représente une vue de face de l'indicateur de la figure 1 ; et la figure 3 représente une vue de coupe de la face avant d'une deuxième forme de réalisation de l'indicateur de l'invention.The invention will be better understood using the following description and the attached drawing, in which FIG. 1 represents a sectional view of a first embodiment of the invention; Figure 2 shows a front view of the indicator of Figure 1; and Figure 3 shows a sectional view of the front face of a second embodiment of the indicator of the invention.

L'indicateur de la figure 1 comprend, de l'arrière vers l'avant, un mouvement (moteur) 1 avec un axe d'entraînement d'aiguille 2, une face avant 3, ici de tableau de bord, en l'occurence d'un véhicule automobile, percée pour le passage de l'axe 2 et un film sérigraphié 4 rapporté sur la face avant 3 également percé d'un orifice 7 de passage de l'axe 2 et jouant le rôle de cadran pour une aiguille indicatrice 6 montée sur l'axe d'entraînement 2 pour tourner devant le cadran 4.The indicator of FIG. 1 comprises, from the rear towards the front, a movement (motor) 1 with a needle drive axis 2, a front face 3, here of dashboard, in this case of a motor vehicle, pierced for the passage of the axis 2 and a screen-printed film 4 attached to the front face 3 also pierced with an orifice 7 for the passage of the axis 2 and playing the role of dial for an indicator needle 6 mounted on the drive shaft 2 to turn in front of the dial 4.

Comme montré sur les figures 1 et 2, la face avant 3 porte trois pions de déformations 5 sortis de moule avec la face avant et disposés sensiblement à 1200 les uns des autres.As shown in FIGS. 1 and 2, the front face 3 carries three deformation pins 5 taken out of the mold with the front face and arranged substantially at 1200 from one another.

Le bord de l'orifice 7 du cadran, c'est-à-dire la périphérie intérieure de la portion de cadran considérée entoure les pions de déformation 5.The edge of the orifice 7 of the dial, that is to say the inner periphery of the portion of the dial considered surrounds the deformation pins 5.

Mais comme ceux-ci s inscrivent dans un cercle d'ouverture plus grande que celle de l'orifice 7, ces pions 5 exercent sur le bord d'orifice 7 une précontrainte et le déforme, ce qui évite que le cadran 4 ne se gondole. But as these are part of a larger opening circle than that of the orifice 7, these pins 5 exert on the edge of the orifice 7 a prestress and deforms it, which prevents the dial 4 from buckling .

Le taux de déformation de la périphérie intérieure du cadran est déterminé en tenant compte d'une pluralité de paramètres dont les principaux sont l'épaisseur du cadran, les dimensions de son orifice de passage et autres tolérances de fonctionnement.The rate of deformation of the inner periphery of the dial is determined by taking into account a plurality of parameters, the main ones being the thickness of the dial, the dimensions of its passage orifice and other operating tolerances.

On a décrit, en référence aux figures 1 et 2 un cadran à trois pions de déformation. Bien entendu, on pourrait envisager deux pions, diamétralement opposés ou une pluralité de pions, plus de trois.We have described, with reference to FIGS. 1 and 2, a dial with three deformation pins. Of course, one could envisage two pawns, diametrically opposite or a plurality of pawns, more than three.

L'indicateur de la figure 3 ne se distingue de celui des figures 1 et 2 que par le fait que les pions sont remplacés par une collerette circulaire 8 également sortie de moule avec la face avant.The indicator of FIG. 3 differs from that of FIGS. 1 and 2 only by the fact that the pins are replaced by a circular flange 8 also taken out of the mold with the front face.

On peut encore envisager d'autres formes de réalisation de l'invention, par exemple avec une collerette non parfaitement circulaire ou partiellement circulaire ou une combinaison d'au moins un pion et d'une portion de collerette. It is also possible to envisage other embodiments of the invention, for example with a flange that is not perfectly circular or partially circular or a combination of at least one pin and a portion of flange.

Claims (6)

REVENDICATIONS 1- Indicateur comprenant une face avant (3) avec, d'un côté, un mouvement (1), pourvu d'une aiguille indicatrice (6) montée sur un axe d'entraînement (2) s'étendant à travers la face avant (3) et, de l'autre côté, un cadran (4) percé d'un orifice (7) de passage de l'axe (2) de l'aiguille (6), caractérisé par le fait que la face avant comporte des moyens (5 ; 8) agencés pour coopérer avec le bord de l'orifice (7) du cadran (4) et le déformer.1- Indicator comprising a front face (3) with, on one side, a movement (1), provided with an indicator needle (6) mounted on a drive shaft (2) extending through the front face (3) and, on the other side, a dial (4) pierced with an orifice (7) for passage of the axis (2) of the needle (6), characterized in that the front face comprises means (5; 8) arranged to cooperate with the edge of the orifice (7) of the dial (4) and to deform it. 2- Indicateur selon la revendication 1, dans lequel les moyens de déformation du bord (7) de l'orifice du cadran (4) comportent au moins un pion (5).2- The indicator of claim 1, wherein the edge deformation means (7) of the orifice of the dial (4) comprise at least one pin (5). 3- Indicateur selon la revendication 2, dans lequel il est prévu deux pions.3- Indicator according to claim 2, in which two pins are provided. 4- Indicateur selon la revendication 2, dans lequel il est prévu au moins trois pions (5) espacés sensiblement de 1200 les uns des autes.4- The indicator of claim 2, wherein there are provided at least three pins (5) spaced substantially 1200 from each other. 5- Indicateur selon l'une des revendications 1 et 2, dans lequel lesdits moyens de déformation comprennent au moins une portion de collerette (8).5- Indicator according to one of claims 1 and 2, wherein said deformation means comprise at least a portion of flange (8). 6- Indicateur selon l'une des revendications 1 à 5, dans lequel lesdits moyens de déformation (5 ; 8) sont sorties de moule avec la face avant (3). 6- Indicator according to one of claims 1 to 5, wherein said deformation means (5; 8) are taken out of the mold with the front face (3).
FR9601679A 1996-02-12 1996-02-12 DIAL INDICATOR Expired - Fee Related FR2744801B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9601679A FR2744801B1 (en) 1996-02-12 1996-02-12 DIAL INDICATOR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9601679A FR2744801B1 (en) 1996-02-12 1996-02-12 DIAL INDICATOR

Publications (2)

Publication Number Publication Date
FR2744801A1 true FR2744801A1 (en) 1997-08-14
FR2744801B1 FR2744801B1 (en) 1998-04-03

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ID=9489079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9601679A Expired - Fee Related FR2744801B1 (en) 1996-02-12 1996-02-12 DIAL INDICATOR

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FR (1) FR2744801B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012872A1 (en) * 1991-01-16 1992-08-06 Societe D'applications Generales D'electricite Et De Mecanique (Sagem) Dashboard assembly with invisible cylindrical plate
EP0569953A1 (en) * 1992-05-12 1993-11-18 MAGNETI MARELLI S.p.A. On-board vehicle instrument comprising a dial and an operating mechanism
WO1995017648A1 (en) * 1993-12-22 1995-06-29 Magneti Marelli France Motor vehicle dashboard including an improved indicator indexing assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992012872A1 (en) * 1991-01-16 1992-08-06 Societe D'applications Generales D'electricite Et De Mecanique (Sagem) Dashboard assembly with invisible cylindrical plate
EP0569953A1 (en) * 1992-05-12 1993-11-18 MAGNETI MARELLI S.p.A. On-board vehicle instrument comprising a dial and an operating mechanism
WO1995017648A1 (en) * 1993-12-22 1995-06-29 Magneti Marelli France Motor vehicle dashboard including an improved indicator indexing assembly

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Publication number Publication date
FR2744801B1 (en) 1998-04-03

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