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JP2009085670A - Luminous indicator - Google Patents

Luminous indicator Download PDF

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Publication number
JP2009085670A
JP2009085670A JP2007253439A JP2007253439A JP2009085670A JP 2009085670 A JP2009085670 A JP 2009085670A JP 2007253439 A JP2007253439 A JP 2007253439A JP 2007253439 A JP2007253439 A JP 2007253439A JP 2009085670 A JP2009085670 A JP 2009085670A
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Japan
Prior art keywords
light
indicator
shape
pointer
longitudinal direction
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Pending
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JP2007253439A
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Japanese (ja)
Inventor
Shuichi Nomizu
秀一 野水
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Application filed by Nippon Seiki Co Ltd filed Critical Nippon Seiki Co Ltd
Priority to JP2007253439A priority Critical patent/JP2009085670A/en
Publication of JP2009085670A publication Critical patent/JP2009085670A/en
Pending legal-status Critical Current

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    • 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
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/60—Structural details of dashboards or instruments
    • B60K2360/68—Features of instruments
    • B60K2360/698—Pointers of combined instruments
    • B60K2360/6992—Light conducting pointers

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  • Details Of Measuring Devices (AREA)
  • Instrument Panels (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminous indicator capable of efficiently transferring light from a light source. <P>SOLUTION: This luminous indicator 1 equipped with an indication part 11 illuminated by the light from the light source 5 is provided with a reflecting part 11d whose sectional shape in the orthogonal direction to the longitudinal direction of the indication part 11 on the under surface 11c of the indication part 11 is a curved surface shape, having a width narrower than the width of the indication part 11, in the orthogonal direction to the axial direction of the rotating shaft of the luminous indicator 1, in the orthogonal direction to the longitudinal direction of the indication part 11, on the under surface 11c of the curved surface shape. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、光源からの光によって照明される指示部を備えた発光指針に関する。   The present invention relates to a light emission indicator provided with an indicator that is illuminated by light from a light source.

従来の発光指針は、光源からの光を指針本体内に入射させる受光部を有し、前記受光部から前記光源からの光が入射することによって指示部が発光照明する発光指針であって、前記光源からの光を反射する反射面を、前記指示部の下面に前記指示部の長手方向の断面形状が鋸歯形状となるように形成したものであった（例えば、特許文献１参照）。
特開平８−２１９８２２号公報 The conventional light emitting pointer is a light emitting pointer that has a light receiving portion that causes light from a light source to enter the pointer main body, and that the indicator portion emits light when light from the light source enters from the light receiving portion, The reflection surface that reflects light from the light source was formed on the lower surface of the indicator so that the cross-sectional shape in the longitudinal direction of the indicator was a saw-tooth shape (see, for example, Patent Document 1).
JP-A-8-21842

前記反射面は、前記指示部内での前記光源からの光の伝達を阻害するものであり、従来の発光指針においては、前記指示部の下面の全面に反射面を設けた部分では、前記光源からの光の伝達を阻害していた。   The reflective surface inhibits the transmission of light from the light source in the indicator, and in the conventional light emission pointer, in the portion where the reflective surface is provided on the entire lower surface of the indicator, from the light source Was blocking the transmission of light.

そこで、本発明は、前記光源からの光を効率よく伝達することが可能な発光指針を提供することを目的とするものである。   Therefore, an object of the present invention is to provide a light emission indicator capable of efficiently transmitting light from the light source.

本発明は、光源からの光によって照明される指示部を備えた発光指針において、前記指示部の前記下面の前記指示部の長手方向に対して直角方向の断面形状を曲面形状とし、前記曲面形状の前記下面に、前記指示部の長手方向に対して直角方向で、前記発光指針の回転軸の軸方向に対して直角方向の前記指示部の幅よりもせまい幅を有する反射部を設けたものである。   The present invention provides a light-emitting pointer provided with an indicator illuminated by light from a light source, wherein a cross-sectional shape perpendicular to the longitudinal direction of the indicator on the lower surface of the indicator is a curved shape, and the curved shape A reflective portion having a narrower width than the width of the indicator portion in a direction perpendicular to the longitudinal direction of the indicator pointer and perpendicular to the axial direction of the rotation axis of the light emitting pointer. It is.

また、本発明は、前記反射部は、前記指示部の長手方向の断面形状が鋸歯形状である。   In the present invention, the reflecting portion has a sawtooth shape in a longitudinal section of the indication portion.

また、本発明は、前記鋸歯形状を構成する反射面は、平坦面である。   In the present invention, the reflecting surface constituting the sawtooth shape is a flat surface.

また、本発明は、前記鋸歯形状を構成する反射面は、前記指示部の下面に沿った曲面である。   In the present invention, the reflecting surface forming the sawtooth shape is a curved surface along the lower surface of the pointing portion.

また、本発明は、前記指示部の上面の前記指示部の長手方向に対して直角方向の断面形状が、曲面形状である。   In the present invention, the cross-sectional shape in the direction perpendicular to the longitudinal direction of the indicator on the upper surface of the indicator is a curved surface.

本発明によれば、所期の目的を達成でき、前記光源からの光を効率よく伝達することが可能な発光指針を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the light emission guide | line which can achieve the objective and can transmit the light from the said light source efficiently can be provided.

以下、添付図面に基づいて本発明の実施形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

発光指針１は、文字板２とともに指針式計器３を構成するものである。指針式計器３は、発光指針１、文字板２の他に、発光指針１を回転駆動する電動機４と、発光指針１に光を供給する光源５と、回路基板６とを備えている。   The luminescent pointer 1 constitutes a pointer-type meter 3 together with the dial 2. In addition to the light emission pointer 1 and the dial 2, the pointer-type meter 3 includes an electric motor 4 that rotationally drives the light emission pointer 1, a light source 5 that supplies light to the light emission pointer 1, and a circuit board 6.

本実施形態では、指針式計器３は、車両の速度を表示する速度計である。   In the present embodiment, the pointer-type meter 3 is a speedometer that displays the speed of the vehicle.

文字板２は、貫通孔２ａを備えている。また、目盛や文字などからなる指標部２ｂを備えている。目盛や、この目盛に対応する文字などの指標部２ｂは、貫通孔２ａを中心とした円弧状に設けられている。   The dial 2 is provided with a through hole 2a. Moreover, the indicator part 2b which consists of a scale, a character, etc. is provided. The scale and the indicator portion 2b such as characters corresponding to the scale are provided in an arc shape with the through hole 2a as the center.

電動機４は、ステッピングモータなどであり、この電動機４は、駆動軸４ａを備えており、この駆動軸４ａに固定された発光指針１を、車両の速度に伴い回転駆動する。   The electric motor 4 is a stepping motor or the like, and the electric motor 4 includes a drive shaft 4a. The light emitting pointer 1 fixed to the drive shaft 4a is rotationally driven according to the speed of the vehicle.

光源５は、発光ダイオードなどであり、本実施形態では、複数の発光ダイオードが駆動軸４ａを囲むように設けられている。   The light source 5 is a light emitting diode or the like, and in the present embodiment, a plurality of light emitting diodes are provided so as to surround the drive shaft 4a.

回路基板６は、硬質の回路基板６であり、基材のガラスエポキシ樹脂を用いている。この回路基板６の上面（図２中、上側の面）には、光源５が実装されており、下面（図２中、下側の面）には、電動機４が固定されている。回路基板６の表裏面には、図示しない複数の配線パターンが設けられている。これらの配線パターンは、それぞれ電動機４と光源５とに電気的に接続している。また、回路基板６は、貫通した孔６ａを備えており、この孔６ａを電動機４の駆動軸４ａが貫通する。   The circuit board 6 is a hard circuit board 6 and uses a glass epoxy resin as a base material. A light source 5 is mounted on the upper surface (upper surface in FIG. 2) of the circuit board 6, and the electric motor 4 is fixed on the lower surface (lower surface in FIG. 2). A plurality of wiring patterns (not shown) are provided on the front and back surfaces of the circuit board 6. These wiring patterns are electrically connected to the electric motor 4 and the light source 5, respectively. Further, the circuit board 6 has a through hole 6a, and the drive shaft 4a of the electric motor 4 passes through the hole 6a.

発光指針１は、回転軸となる駆動軸４ａを中心として回転するものである。   The light emission pointer 1 rotates around a drive shaft 4a serving as a rotation shaft.

発光指針１は、指示部１１と、指針基部１２と、指針キャップ１３および指針座１４とで構成されている。   The light emission pointer 1 includes an instruction portion 11, a pointer base portion 12, a pointer cap 13 and a pointer seat 14.

本実施形態では、指示部１１と指針基部１２とは一体に形成されている。指示部１１と指針基部１２とは、透明な合成樹脂から構成されている。   In the present embodiment, the instruction portion 11 and the pointer base portion 12 are integrally formed. The instruction part 11 and the pointer base part 12 are made of a transparent synthetic resin.

指針キャップ１３は、遮光性の合成樹脂からなり、指針基部１２と指針座１４とを覆うものである。   The pointer cap 13 is made of a light shielding synthetic resin and covers the pointer base 12 and the pointer seat 14.

指針座１４も指針キャップ１３と同様に遮光性の合成樹脂からなる。指針座１４は、円盤形状であり、その下面にボス部１４ａを備えており、このボス部１４ａで、駆動軸４ａと連結している。また、指針座１４には、指針基部１２の一部が挿入される孔１４ｂを備えている。   Similarly to the pointer cap 13, the pointer seat 14 is also made of a light-shielding synthetic resin. The pointer seat 14 has a disc shape and includes a boss portion 14a on the lower surface thereof, and is connected to the drive shaft 4a by the boss portion 14a. Further, the pointer seat 14 is provided with a hole 14b into which a part of the pointer base 12 is inserted.

指針基部１２は、円錐の一部を切り取ったような形状をしており、指針座１４の孔１４ｂから露出した面が、光源５からの光を受光する受光面１２ａを構成している。また、受光面１２ａで受光した光を指示部１１側に反射する反射面１２ｂを備えている。   The pointer base 12 has a shape obtained by cutting a part of a cone, and the surface exposed from the hole 14 b of the pointer seat 14 constitutes a light receiving surface 12 a that receives light from the light source 5. In addition, the light receiving surface 12a is provided with a reflecting surface 12b that reflects the light received by the light receiving surface 12a to the pointing unit 11 side.

指示部１１は、光源５からの光によって照明されるものである。指示部１１の長手方向に対して直角方向の断面形状は、上面１１ａと両側面１１ｂとは平面であり、下面１１ｃは、曲面形状である。上面１１ａは駆動軸４ａの軸方向に対して直角方向の平面であり、側面１１ｂは駆動軸４ａの軸方向に平行な平面である。   The instruction unit 11 is illuminated by light from the light source 5. In the cross-sectional shape in the direction perpendicular to the longitudinal direction of the indicator 11, the upper surface 11a and both side surfaces 11b are flat surfaces, and the lower surface 11c is a curved surface shape. The upper surface 11a is a plane perpendicular to the axial direction of the drive shaft 4a, and the side surface 11b is a plane parallel to the axial direction of the drive shaft 4a.

この曲面形状の下面１１ｃには、反射部１１ｄが設けられている。この反射部１１ｄは、指示部１１の長手方向に対して直角方向で、かつ駆動軸４ａの軸方向に対して直角方向の指示部１１の幅よりも狭い幅となるように形成されている。すなわち、図３中、矢印方向から見た場合に、指示部１１の幅よりも、反射部１１ｄの幅が狭く形成されている。また、反射部１１ｄの幅は、曲面形状の下面１１ｃの幅よりも狭く形成されてもいる。   A reflecting portion 11d is provided on the curved lower surface 11c. The reflecting portion 11d is formed to have a width that is perpendicular to the longitudinal direction of the indicating portion 11 and narrower than the width of the indicating portion 11 that is perpendicular to the axial direction of the drive shaft 4a. That is, in FIG. 3, the width of the reflecting portion 11 d is narrower than the width of the pointing portion 11 when viewed from the direction of the arrow. Moreover, the width of the reflecting portion 11d is formed narrower than the width of the curved lower surface 11c.

反射部１１ｄは、指示部１１の長手方向で、かつ駆動軸４ａの軸方向の断面形状が鋸歯形状である。この鋸歯形状の反射部１１ｄは、複数の反射面１１ｅで構成されており、この反射面１１ｅは、平坦面である。   The reflecting portion 11d has a sawtooth shape in cross section in the longitudinal direction of the indicating portion 11 and in the axial direction of the drive shaft 4a. The sawtooth-shaped reflecting portion 11d is composed of a plurality of reflecting surfaces 11e, and the reflecting surface 11e is a flat surface.

以上のように、曲面形状の下面１１ｃに、指示部１１の幅よりもせまい幅を有する反射部１１ｄを設けたことによって、反射面１１ｄを曲面形状の下面１１ｃで拡大されるので、反射部１１ｄを設ける面積を小さくすることができる。この反射部１１ｄを小型化することで、光源５からの光を指示部１１内で効率よく伝達することができる。   As described above, the reflective surface 11d is enlarged by the curved lower surface 11c by providing the reflective surface 11d having a narrower width than the indication portion 11 on the curved lower surface 11c. The area to provide can be reduced. By reducing the size of the reflecting portion 11d, the light from the light source 5 can be efficiently transmitted within the indicating portion 11.

なお、反射部１１ｄを構成する反射面１１ｅは、平坦面に限定されるものではなく、図４、図５で示すような第２実施形態や第３実施形態のような形状でもよい。この第２、第３実施形態の反射面１１ｅは、指示部１１の下面１１ｃに沿った曲面である。   The reflecting surface 11e constituting the reflecting portion 11d is not limited to a flat surface, and may have a shape as in the second embodiment or the third embodiment as shown in FIGS. The reflection surface 11e of the second and third embodiments is a curved surface along the lower surface 11c of the instruction unit 11.

図４で示す第２実施形態の反射面１１ｅは、反射面１１ｅの中央部から両端に向かうに従って反射面１１ｅの駆動軸４ａ方向の幅が狭くなるような三日月形状であり、図５で示す第３実施形態の反射面１１ｅは、反射面１１ｅの中央部の駆動軸４ａ方向の幅も両端部の幅も同一となるような扇形状である。   The reflecting surface 11e of the second embodiment shown in FIG. 4 has a crescent shape in which the width of the reflecting surface 11e in the direction of the drive shaft 4a decreases from the center of the reflecting surface 11e toward both ends. The reflective surface 11e of the third embodiment has a fan shape so that the width of the central portion of the reflective surface 11e in the direction of the drive shaft 4a and the width of both end portions are the same.

第２、第３実施形態においても、第１実施形態と同様の作用効果を得ることができる。   In the second and third embodiments, the same operational effects as those of the first embodiment can be obtained.

また、図６で示す第４実施形態は、指示部１１の上面１１ａが、指示部１１の長手方向に対して直角方向の断面形状を曲面形状としたものである。このように構成したことによって、さらに、反射部１１ｄを拡大することができ、さらに反射部１１ｄを小型化することで、光源５からの光を指示部１１内で効率よく伝達することができる。   In the fourth embodiment shown in FIG. 6, the upper surface 11 a of the indication unit 11 has a curved cross-sectional shape perpendicular to the longitudinal direction of the indication unit 11. With this configuration, it is possible to further enlarge the reflecting portion 11d, and further reduce the size of the reflecting portion 11d, so that the light from the light source 5 can be efficiently transmitted within the indicating portion 11.

本発明の第１実施形態の発光指針を備えた計器の正面図。The front view of the meter provided with the light emission pointer of 1st Embodiment of this invention. 図１中Ａ−Ａ線の断面図。Sectional drawing of the AA line in FIG. 図２中Ｂ−Ｂ線の断面図。Sectional drawing of the BB line in FIG. 同発明の第２実施形態の断面図。Sectional drawing of 2nd Embodiment of the invention. 同発明の第３実施形態の断面図。Sectional drawing of 3rd Embodiment of the invention. 同発明の第４実施形態の断面図。Sectional drawing of 4th Embodiment of the same invention.

符号の説明Explanation of symbols

１ 発光指針
５ 光源
１１ 指示部
１１ａ 上面
１１ｃ 下面
１１ｄ 反射部
１１ｅ 反射面 DESCRIPTION OF SYMBOLS 1 Light emission pointer 5 Light source 11 Instruction part 11a Upper surface 11c Lower surface 11d Reflective part 11e Reflective surface

Claims (5)

光源からの光によって照明される指示部を備えた発光指針において、前記指示部の前記下面の前記指示部の長手方向に対して直角方向の断面形状を曲面形状とし、前記曲面形状の前記下面に、前記指示部の長手方向に対して直角方向で、前記発光指針の回転軸の軸方向に対して直角方向の前記指示部の幅よりもせまい幅を有する反射部を設けたことを特徴とする発光指針。 In a light emission indicator provided with an indicator illuminated by light from a light source, a cross-sectional shape perpendicular to the longitudinal direction of the indicator on the lower surface of the indicator is a curved shape, and the lower surface of the curved shape is A reflecting portion having a narrower width than the width of the pointing portion in a direction perpendicular to the longitudinal direction of the pointing portion and perpendicular to the axial direction of the rotation axis of the light emitting pointer. Luminous pointer. 前記反射部は、前記指示部の長手方向で、前記回転軸の軸方向の断面形状が鋸歯形状であることを特徴とする請求項１に記載の発光指針。 2. The light emitting pointer according to claim 1, wherein the reflecting portion has a sawtooth shape in a cross-sectional shape in the axial direction of the rotating shaft in a longitudinal direction of the indicating portion. 前記鋸歯形状を構成する反射面は、平坦面であることを特徴とする請求項２に記載の発光指針。 The light emitting pointer according to claim 2, wherein the reflective surface constituting the sawtooth shape is a flat surface. 前記鋸歯形状を構成する反射面は、前記指示部の下面に沿った曲面であることを特徴とする請求項２に記載の発光指針。 The light-emitting pointer according to claim 2, wherein the reflective surface constituting the sawtooth shape is a curved surface along a lower surface of the pointing portion. 前記指示部の上面の前記指示部の長手方向に対して直角方向の断面形状が、曲面形状であることを特徴とする請求項１または請求項２に記載の発光指針。 3. The light emitting pointer according to claim 1, wherein a cross-sectional shape in a direction perpendicular to the longitudinal direction of the indicator on the upper surface of the indicator is a curved shape.
JP2007253439A 2007-09-28 2007-09-28 Luminous indicator Pending JP2009085670A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820291A (en) * 2014-02-03 2015-08-05 Lg伊诺特有限公司 Stereoscopic display device and dashboard using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739318U (en) * 1980-08-15 1982-03-03
JPS58180498U (en) * 1982-05-27 1983-12-02 日野自動車株式会社 meter pointer
JPS6397815U (en) * 1986-12-16 1988-06-24
JP2006349620A (en) * 2005-06-20 2006-12-28 Yazaki Corp Instrument guidelines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739318U (en) * 1980-08-15 1982-03-03
JPS58180498U (en) * 1982-05-27 1983-12-02 日野自動車株式会社 meter pointer
JPS6397815U (en) * 1986-12-16 1988-06-24
JP2006349620A (en) * 2005-06-20 2006-12-28 Yazaki Corp Instrument guidelines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820291A (en) * 2014-02-03 2015-08-05 Lg伊诺特有限公司 Stereoscopic display device and dashboard using the same

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