EP1654521A2 - Aiguille d'indicateur de bord a eclairage luminescent - Google Patents
Aiguille d'indicateur de bord a eclairage luminescentInfo
- Publication number
- EP1654521A2 EP1654521A2 EP04767668A EP04767668A EP1654521A2 EP 1654521 A2 EP1654521 A2 EP 1654521A2 EP 04767668 A EP04767668 A EP 04767668A EP 04767668 A EP04767668 A EP 04767668A EP 1654521 A2 EP1654521 A2 EP 1654521A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- needle
- pins
- indicator
- pin
- 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- Withdrawn
Links
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
- G01D13/22—Pointers, e.g. settable pointer
- G01D13/28—Pointers, e.g. settable pointer with luminescent markings
-
- 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
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/28—Structurally-combined illuminating devices
Definitions
- the invention relates to the field of dashboard indicators with light needles on dashboards of motor vehicles and more particularly the mounting and connection of these light needles.
- the light needles can, from a fixed light source close to their axis of rotation, receive their light through light guides provided in their hub and be arranged to diffuse it along their length. In this case, in their rotational movement to indicate a physical quantity, the light source remains fixed and there is no problem for its electrical supply. However, this lighting mode requires a complex processing hub and the brightness of the needle is not optimal.
- the light needles can also contain their own light source ;, which is then electrically supplied by conductors provided in the hub. This process eliminates the above drawback, but the light source rotating with the needle and the power source being necessarily fixed on the electronic board of the dashboard, the electrical connection between the two sources is necessarily dynamic.
- This second solution has the drawback of requiring on the one hand the presence of sliding contacts, always subject to wear by friction, to fouling, until the power supply to the light source is cut off.
- the complexity of mounting electrical circuits entails a non-negligible cost.
- the present invention proposes, for this second solution, an improvement aimed at eliminating the presence of any sliding contact while ensuring simple assembly of the needle.
- the invention relates to an on-board indicator with a light needle, mounted on an electronic dashboard card, the needle comprising an arm movable in rotation with a light source and the card a source of power for the light source.
- the indicator is characterized by the fact that the light source comprises a first part of a support made of flexible material covered with a photophore substance subjected to an electrical voltage from the power source to which it is electrically connected by an electrical connection. flexible formed by a second part of the flexible insulating support serving as a substrate for at least two conductive tracks.
- the indicator for the second part of the flexible support is secured to at least two pins which can each be plugged into an electrical contact secured to the electronic card, each pin being in contact with one or the other of the two conductive tracks.
- the indicator When the indicator is requested to indicate a physical quantity, its needle pivoting about its axis, the electrical connection is wound around the hub of the needle. This eliminated all sliding contact.
- the needle thus comprises a minimum of parts to be mounted in a minimum size.
- the flexible film is secured to at least two pins which can each be plugged into an electrical contact secured to the electronic card, each pin being in contact with one or the other of the two conductive tracks.
- the pins are assembled on a pin support which can be embedded in a housing for holding the pin support provided in the needle to facilitate mounting.
- the housing for holding the pin support and the electrical contacts of the electronic card are arranged to, in the indicator mounting position, allow the pins to be plugged into the contacts, and for, in the operating position of the indicator, avoid collision of the pin holder holding housing with the pin holder, this will not block its operation or hinder its movement.
- the pin support and the retaining housing are arranged to be separated when the indicator is energized.
- FIG. 1 shows a sectional side view of the needle of the on-board indicator according to the invention, the needle being in the mounting position;
- FIG. 2 shows a bottom view of the needle in the same position, the electronic card and the dial being removed;
- FIG. 3 shows a perspective view of the pin holder
- - Figure 4 shows a sectional side view of the needle of the on-board indicator of the invention, the needle being in the operating position; and - Figure 5 shows a bottom view of the needle in the same position, the electronic card, the flexible film and the dial being removed.
- the on-board indicator 1 of the vehicle dashboard comprises a cadra 14, made of polycarbonate for example, carrying graduations indicative of physical quantities relating to the running of the vehicle, at its center, an opening 40 through which passes a hub 15 integral with an axis 19 of a motor 20, for example a stepping motor, mounted on an electronic card 21.
- the hub is extended by a needle 10 extending towards the graduations of the dial 14 by an arm 11 completely covered with a transparent fairing 12.
- the stepping motor 20 is arranged to rotate the needle according to the physical quantity to be displayed on the dial.
- a layer of tealight material for example an electroluminescent ink
- the support 30 extends beyond the arm 11 of the needle 10 by a second strip-shaped portion 30 "extending along the hub 15, but free, to pass through the dial 14 by the opening 40, then around the hub 15 in a spiral S surrounding said hub, under the dial, of a sufficient length specified later.
- the support 30 is folded back on itself at 90 °, at the height of the hub, forming a fold 45.
- the support 30 is electrically insulating, it comprises in its second part two conductive tracks 31 and 32, parallel, connected on either side of the index to supply it electrically in a suitable manner, and extending without interruption until its free end.
- On the first part 30 ′ of the support 30 these two conductive tracks act as electrodes over the entire useful length of the needle or at least its visible part and ensure the excitation of the electroluminescent ink.
- One of the tracks 31 is in contact 41 with a pin 23 secured to the support 30, and the other 32 with another pin 24 also secured thereto. The contacts are far enough away from the support 30 to ensure plug-in mounting which will be explained later.
- FIG. 2 shows the spiral S formed by the strip 30 "around the hub 15 and the arrangement of the pins 23 and 24 secured at its free end.
- the pins 23, 24 are kept parallel to each other in the same way as the pins of an ordinary electrical outlet by means of a pin holder 25, as shown in FIG. 3.
- the spindle support 25 has a pin 26, central, and two equidistant holes 43 and 44, into which the ends 33 and 34 of the pins 23 and 24 are inserted.
- the pins extend out of the support 25 opposite the central pin 26.
- the strip 30 is glued to pins 23 and 24, and, to avoid an electrical short circuit, insulating rings 51 and 52 have been placed on pins 23 and 24 to isolate pin 23 from track 32 and the pin 24 of track 31.
- pin 23 is in electrical contact 41 only with track 31 and pin 24 in electrical contact 42 only with track 32.
- a spike 16 has been provided so as to be close enough to the hub 15 to pass into the opening 40, in which a housing 17 has been provided for holding the support 25 of the pins 23 and 24.
- the pin 16 of the needle 10 is of a length such that, when the pin 26 of the pin holder 25 is engaged in the housing 17, the pins 23 and 24 can be plugged into electrical contacts 22 secured to the electronic card 21.
- the housing 17 is arranged to, as seen in Figure 5, maintain the pin 26 by lateral snap-fastening.
- the needle When, in a position for fitting the needle, the pins 16 and 26 are aligned and the pins are plugged into the contacts 22, the needle is located outside of its operating range on the dial.
- the length of the strip 30 is sufficient to allow the needle to pivot not only over the whole of said operating range, but also, beyond, to the mounting position of the needle defined above.
- the needle 10 In normal operation of the indicator 1, with reference to FIG. 4, the needle 10 is in an operating position located somewhere in a sector determined by its movement around its axis 19, generally by an angle of 180 ° or more, but less than a full turn.
- the support 25 of the pins 23, 24, which are plugged into the contacts 22, is not located in said sector. It remains out of reach of the pin 16 of the needle 10 which is not hampered in its indication movement.
- the pin 26 of the support 25 of the pins 23, 24 is engaged in the housing 17 and the pins are plugged into the contacts 22 at the same time as the hub 15 is plugged into the axis 19 of the motor 20.
- the needle is then in an assembly position as in FIG. 1, outside the sector determined by its scanning during operation.
- the needle 10 is forced, manually or by starting the motor 20, to turn to bring it into the sector.
- the pin 26 is forced out of the pin 17.
- the electrodes of the first part 30 ′ of the support ensure the excitation of the tealight material which becomes luminous. Whatever the position of the needle, the supply of the first part is ensured by the electrodes on the second part which thanks to the flexibility of the support 30 "follow the movement while remaining connected to the current source.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Measuring Devices (AREA)
- Instrument Panels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0308676A FR2857744B1 (fr) | 2003-07-16 | 2003-07-16 | Aiguille d'indicateur de bord a eclairage luminescent |
PCT/FR2004/001837 WO2005008185A2 (fr) | 2003-07-16 | 2004-07-13 | Aiguille d’indicateur de bord a eclairage luminescent |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1654521A2 true EP1654521A2 (fr) | 2006-05-10 |
Family
ID=33548175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04767668A Withdrawn EP1654521A2 (fr) | 2003-07-16 | 2004-07-13 | Aiguille d'indicateur de bord a eclairage luminescent |
Country Status (5)
Country | Link |
---|---|
US (1) | US20080122601A1 (fr) |
EP (1) | EP1654521A2 (fr) |
JP (1) | JP2007516420A (fr) |
FR (1) | FR2857744B1 (fr) |
WO (1) | WO2005008185A2 (fr) |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5441762A (en) * | 1977-09-09 | 1979-04-03 | Nissan Motor | Revolving pointer type meter |
JP2526467B2 (ja) * | 1992-08-24 | 1996-08-21 | 日本電装株式会社 | 自発光指針式計器 |
US5636589A (en) * | 1992-08-24 | 1997-06-10 | Nippondenso Co., Ltd. | Analog indicator with self-luminescent pointer |
EP0783667A4 (fr) * | 1994-09-22 | 1997-11-26 | Durel Corp | Aiguille mobile a lampe electroluminescente montee de chant |
US6082288A (en) * | 1994-10-31 | 2000-07-04 | Nippondenso Co., Ltd. | Indicating instrument having self-luminescent indicator |
JPH08136289A (ja) * | 1994-11-11 | 1996-05-31 | Nippondenso Co Ltd | 自発光指針式計器 |
DE19615499A1 (de) * | 1996-04-19 | 1997-10-23 | Vdo Schindling | Zeigerinstrument |
DE19617553A1 (de) * | 1996-05-02 | 1997-11-13 | Bosch Gmbh Robert | Zeigerinstrument |
US5797345A (en) * | 1996-11-13 | 1998-08-25 | Ford Global Technologies, Inc. | Illuminated pointer for instrument gage |
DE19810854B4 (de) * | 1998-03-13 | 2007-12-20 | Siemens Ag | Zeigerinstrument |
DE19857860A1 (de) * | 1998-12-15 | 2000-06-21 | Mannesmann Vdo Ag | Zeigerinstrument |
DE19859919A1 (de) * | 1998-12-23 | 2000-07-06 | Mannesmann Vdo Ag | Anzeigeinstrument |
DE102007033995B4 (de) * | 2007-07-19 | 2016-04-14 | Johnson Controls Automotive Electronics Gmbh | Anzeigevorrichtung zur Erzeugung einer konturierten Form |
-
2003
- 2003-07-16 FR FR0308676A patent/FR2857744B1/fr not_active Expired - Fee Related
-
2004
- 2004-07-13 EP EP04767668A patent/EP1654521A2/fr not_active Withdrawn
- 2004-07-13 US US10/565,060 patent/US20080122601A1/en not_active Abandoned
- 2004-07-13 WO PCT/FR2004/001837 patent/WO2005008185A2/fr active Application Filing
- 2004-07-13 JP JP2006519955A patent/JP2007516420A/ja active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2005008185A2 * |
Also Published As
Publication number | Publication date |
---|---|
FR2857744A1 (fr) | 2005-01-21 |
FR2857744B1 (fr) | 2005-10-28 |
WO2005008185A2 (fr) | 2005-01-27 |
JP2007516420A (ja) | 2007-06-21 |
US20080122601A1 (en) | 2008-05-29 |
WO2005008185A3 (fr) | 2005-06-02 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
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17Q | First examination report despatched |
Effective date: 20160408 |
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INTG | Intention to grant announced |
Effective date: 20161207 |
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GRAS | Grant fee paid |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20170419 |