JP2014215216A - Light-emitting pointer - Google Patents

Light-emitting pointer Download PDF

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JP2014215216A
JP2014215216A JP2013093974A JP2013093974A JP2014215216A JP 2014215216 A JP2014215216 A JP 2014215216A JP 2013093974 A JP2013093974 A JP 2013093974A JP 2013093974 A JP2013093974 A JP 2013093974A JP 2014215216 A JP2014215216 A JP 2014215216A
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pointer
light
base
emitting
light emitting
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高橋　泰史
Yasushi Takahashi
泰史 高橋
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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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
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • 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
    • 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

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

Abstract

PROBLEM TO BE SOLVED: To provide a light-emitting pointer capable of emitting light without luminance unevenness.SOLUTION: The light-emitting pointer includes: a pointer body 9 composed of an indication part 14 and a base part 10, and having a light-emitting surface 8 on the indication part 14 and the base part 10; a light receiving part 25 disposed below the base part 10 for receiving light from a rear surface side; a pointer pedestal 11 having a reflection surface 26 formed so as to correspond to the light receiving part 25; a pointer cap 12 that exposes the light-emitting surface 8, and is arranged so as to cover the upper side of the pointer pedestal 11; and a balancer 13. A diffusion panel 15, to which light received by the light receiving part 25 for going to the pointer body 9 is diffused, is provided between the base part 10 and the pointer pedestal 11, and thus the base part 10 is prevented from emitting light too much, and luminance of the indication part 14 and the base part 10 is uniform. Therefore, the light-emitting pointer having improved appearance can be provided.

Description

本発明は、例えば車両用計器に用いられる発光指針に関するものである。   The present invention relates to a light emission indicator used for, for example, a vehicle meter.

発光指針を計器に用いた例として、例えば実開平５−７９４３４号公報がある。この発光指針は、計器を構成する文字板４３および導光体４４の背後に設けられた光源４７からの光を受光部材１３の受光部１８，１９から受光部材１３内に入射させ、反射面２０，２１で反射させて指示部材１２内に光を導いて指示部３３を一様に発光させるというものである。   For example, Japanese Utility Model Laid-Open No. 5-79434 discloses an example in which a light emission indicator is used in a meter. The light emitting pointer causes the light from the light source 47 provided behind the dial 43 and the light guide 44 constituting the instrument to enter the light receiving member 13 from the light receiving portions 18 and 19 of the light receiving member 13, thereby reflecting the surface 20. , 21 to guide the light into the indicator member 12 to uniformly emit the indicator 33.

実開平５−７９４３４号公報Japanese Utility Model Publication No. 5-79434

しかしながら、前記発光指針は、受光部から光が入光した箇所は輝度が高く、指針の先端部分（指示部）は光源から離れるにつれて光が導光されにくくなり、指針を照明する光の輝度にバラツキが生じてしまうという問題点があった。   However, the light emitting pointer has a high luminance at a position where light is incident from the light receiving portion, and the tip portion (indicating portion) of the pointer becomes difficult to guide the light as it moves away from the light source, thereby increasing the luminance of the light that illuminates the pointer. There was a problem that variations occurred.

本発明は、このような問題に鑑みなされたものであり、輝度ムラなく発光することが可能な発光指針を提供するものである。   The present invention has been made in view of such problems, and provides a light emission indicator capable of emitting light without uneven brightness.

本発明は、指示部及び基部からなり、前記指示部及び基部に発光面を有する指針本体と、
前記基部の下方に配置され裏面側より光を受光する受光部と、この受光部に対応して形成された反射面とを有する指針台座と、
前記指針台座の上側を覆うように配置された指針キャップと、を備えた発光指針において、
前記基部と前記指針台座との間に、前記受光部によって受光された光が拡散される拡散板を設けたものである。 The present invention comprises a pointer main body comprising an indicator and a base, the indicator and the base having a light emitting surface;
A pointer pedestal having a light receiving portion disposed below the base and receiving light from the back side, and a reflecting surface formed corresponding to the light receiving portion;
In a light emitting pointer provided with a pointer cap arranged so as to cover the upper side of the pointer pedestal,
A diffusing plate for diffusing the light received by the light receiving unit is provided between the base and the pointer base.

また、本発明は、前記拡散板は、前記基部から突出した突起部と対応した孔部を有しているものである。   In the present invention, the diffusion plate has a hole corresponding to the protrusion protruding from the base.

指針を輝度ムラなく発光させることが可能な発光指針を提供することができる。   It is possible to provide a light emission guide that can emit light without uneven brightness.

本発明の実施形態を示す発光指針が適用された計器の部分断面図。The fragmentary sectional view of the meter to which the light emission pointer which shows embodiment of this invention was applied. 同実施形態を示す発光指針の正面図。The front view of the light emission pointer which shows the embodiment. 同実施形態を示すＡ−Ａ断面図。AA sectional view showing the embodiment.

本発明を車両用計器に用いられる発光指針を実施形態として説明する。図１は、発光指針が適用された計器の部分断面図であり、図２は発光指針の正面図である。図３は、図２に示した発光指針のＡ−Ａ断面図である。   The present invention will be described with reference to an embodiment of a light emitting pointer used in a vehicle instrument. FIG. 1 is a partial cross-sectional view of a meter to which a light emission indicator is applied, and FIG. 2 is a front view of the light emission indicator. FIG. 3 is a cross-sectional view of the light emission pointer shown in FIG.

車両用計器は、硬質な回路基板１と、この回路基板１の裏面側に回路基板１と導通状態で装着され、回路基板１を貫通して前方に延びる回動軸２を有する計器本体３と、回動軸２に固着された発光指針４と、この発光指針４の背後に配置された表示板５と、回動軸２周囲の回路基板１上に実装され発光指針４を照明する光源としての指針用発光ダイオード６と、この指針用発光ダイオード６を囲むように表示板５と回路基板１との間に配置された円形の筒部７とを備えている。   The vehicular instrument includes a rigid circuit board 1, and an instrument body 3 that is mounted on the back side of the circuit board 1 in a conductive state with the circuit board 1 and has a pivot shaft 2 that penetrates the circuit board 1 and extends forward. As a light source for illuminating the light emitting pointer 4 mounted on the circuit board 1 around the rotating shaft 2, the light emitting pointer 4 fixed to the rotating shaft 2, the display board 5 disposed behind the light emitting pointer 4 The pointer light emitting diode 6 and a circular cylindrical portion 7 disposed between the display board 5 and the circuit board 1 so as to surround the pointer light emitting diode 6 are provided.

発光指針４は、発光面８を有する指針本体９と、この指針本体９の基部１０下方に配置された指針台座１１と、発光面８を露出して指針台座１１の上側を覆うように配置された指針キャップ１２と、バランサー１３とを備えている。   The light emitting pointer 4 is disposed so that the pointer main body 9 having the light emitting surface 8, the pointer base 11 disposed below the base 10 of the pointer main body 9, and the light emitting surface 8 is exposed to cover the upper side of the pointer base 11. The indicator cap 12 and the balancer 13 are provided.

指針本体９は、アクリル，ポリカーボネート等の光透過性である（例えば無色透明な）合成樹脂からなり、指示部１４と指針キャップ１２に覆われる基部１０とに大別される。指示部１４と基部１０の表面側には発光面８を有し、この発光面８の表面には例えば青色の箔がホットスタンプされることによって青色着色層１７が形成され、指示部１４の裏面には例えば白色の箔がホットスタンプされることによって白色着色層１６が形成されている。また、基部１０の裏面側にも、白色着色層１６が形成されている。   The pointer main body 9 is made of a light-transmitting (for example, colorless and transparent) synthetic resin such as acrylic or polycarbonate, and is roughly divided into a pointing portion 14 and a base portion 10 covered with the pointer cap 12. The indicator 14 and the base 10 have a light emitting surface 8 on the surface side, and a blue colored layer 17 is formed on the surface of the light emitting surface 8 by hot stamping, for example, a blue foil. For example, a white colored layer 16 is formed by hot stamping a white foil. A white colored layer 16 is also formed on the back side of the base 10.

指針台座１１は、光透過性である（例えば無色透明な）合成樹脂からなり、略円板状の台座部２２と、この台座部２２中心の裏面側に突設した取付部２３と、取付部２３より指針本体９の指示部１４側に設けられた受光部２５と、この受光部２５に対応した反射面２６を有している。受光部２５と反射面２６は台座部２２の表面側に２個設けてあるが１個でも良い。   The pointer pedestal 11 is made of a light-transmitting (for example, colorless and transparent) synthetic resin, a substantially disk-shaped pedestal portion 22, a mounting portion 23 protruding from the back side of the center of the pedestal portion 22, and a mounting portion 23, a light receiving unit 25 provided on the pointing unit 14 side of the pointer main body 9 and a reflecting surface 26 corresponding to the light receiving unit 25. Although two light receiving portions 25 and two reflecting surfaces 26 are provided on the surface side of the pedestal portion 22, one may be used.

指針キャップ１２は、非透過性である（例えば黒色の）合成樹脂からなるほぼ円形の逆カップ状であり、上壁１８の一部には発光面８が露出するように上壁スリット１９が設けてある。また、周壁２０の指示部１４側にも側壁スリット２１が連設されており、この側壁スリット２１から指示部１４が導出されている。   The pointer cap 12 has a substantially circular inverted cup shape made of a non-permeable (for example, black) synthetic resin, and an upper wall slit 19 is provided on a part of the upper wall 18 so that the light emitting surface 8 is exposed. It is. Further, a side wall slit 21 is also provided on the peripheral wall 20 on the side of the indicator 14, and the indicator 14 is led out from the side wall slit 21.

バランサー１３は、発光指針４のバランスを取るもので、黄銅や亜鉛などの金属系の材料（不透過性）からなる。このバランサー１３は、図１に示す様に、指針本体９の基部１０に設けられている後側発光面８Ａ（基部１０）と指針台座１１間の指針台座１１の後方に配置されている。   The balancer 13 balances the emission indicator 4 and is made of a metal material (impermeable) such as brass or zinc. As shown in FIG. 1, the balancer 13 is disposed behind the pointer base 11 between the rear light emitting surface 8 </ b> A (base 10) provided on the base 10 of the pointer main body 9 and the pointer base 11.

拡散板１５は、光透過性である合成樹脂からなり、基部１０内部に入光した光を後側発光面８Ａ方向に拡散させるための拡散部が印刷などによって設けられている。拡散板１５は、指針キャップ１２の内側に収納可能な大きさとなっている。基部１０と指針台座１１との間に収納される際、基部１０に設けられた突起部１０１と拡散部１５に設けられた孔部１５１とが嵌合することによって拡散板１５が基部１０に固定されている。   The diffusing plate 15 is made of a light-transmitting synthetic resin, and is provided with a diffusing portion for diffusing light incident on the inside of the base portion 10 in the direction of the rear light emitting surface 8A by printing or the like. The diffusion plate 15 has a size that can be stored inside the pointer cap 12. When stored between the base 10 and the pointer base 11, the diffusing plate 15 is fixed to the base 10 by fitting the projections 101 provided on the base 10 and the holes 151 provided on the diffusing part 15. Has been.

指針台座１１の受光部２５から入光した光は、反射面２６によって基部１０方向に反射され、拡散板１５によって拡散されることで、後側発光面８Ａから透過する光の輝度を調節することができる。また、反射面２６によって反射された光は、指示部１４方向にも導光され指示部を照明する。この際、発光面８と後側発光面８Ａとは、輝度ムラが生じないように均一の輝度で照明される。   Light incident from the light receiving portion 25 of the pointer base 11 is reflected in the direction of the base 10 by the reflecting surface 26 and diffused by the diffusion plate 15, thereby adjusting the luminance of the light transmitted from the rear light emitting surface 8A. Can do. The light reflected by the reflecting surface 26 is also guided in the direction of the instruction unit 14 to illuminate the instruction unit. At this time, the light emitting surface 8 and the rear light emitting surface 8A are illuminated with uniform luminance so that luminance unevenness does not occur.

このように、本発明は、指示部１４及び基部１０からなり、指示部１４及び基部１０に発光面８を有する指針本体９と、基部１０の下方に配置され裏面側より光を受光する受光部２５と、この受光部２５に対応して形成された反射面２６とを有する指針台座１１と、発光面８を露出して指針台座１１の上側を覆うように配置された指針キャップ１２と、バランサー１３と、を備えた発光指針において、基部１０と指針台座１１との間に、受光部２５によって受光され指針本体９に向かう光が拡散される拡散板１５を設けたことによって、基部１０が光り過ぎてしまうのを防ぐことができ、指示部１４と基部１０との輝度が均一になることで見栄えが向上した発光指針を提供することが可能となる。   As described above, the present invention comprises the indicator 14 and the base 10, the pointer main body 9 having the light emitting surface 8 on the indicator 14 and the base 10, and the light receiving unit that is disposed below the base 10 and receives light from the back side. 25, a pointer pedestal 11 having a reflecting surface 26 formed corresponding to the light receiving portion 25, a pointer cap 12 disposed so as to expose the light emitting surface 8 and cover the upper side of the pointer pedestal 11, and a balancer 13 is provided between the base 10 and the pointer pedestal 11 with a diffusion plate 15 that receives the light received by the light receiving unit 25 and diffuses the light toward the pointer main body 9. Therefore, it is possible to provide a light emission guide having an improved appearance because the brightness of the instruction unit 14 and the base 10 is uniform.

また、本発明は、拡散板１５は、基部１０から突出した突起部１０１と対応した孔部１５１を有していることによって、拡散板１５が基部１０の裏面側に確実に固定され、指針キャップ１２内に収納することが可能となる。   Further, according to the present invention, the diffusion plate 15 has the hole 151 corresponding to the projection 101 protruding from the base 10, so that the diffusion plate 15 is securely fixed to the back side of the base 10, and the pointer cap It becomes possible to store in 12.

なお、拡散板１５を指針キャップ１２内に収納するように配置したことによって、基部の裏面側に設けられた白色着色層１６を省略することも可能となる。   In addition, by arranging the diffusing plate 15 so as to be accommodated in the pointer cap 12, the white colored layer 16 provided on the back surface side of the base can be omitted.

４ 発光指針
８ 発光面
８Ａ 後側発光面
９ 指針本体
１０ 基部
１１ 指針台座
１２ 指針キャップ
１３ バランサー
１４ 指示部
１５ 拡散板
２３ 取付部
２５ 受光部
２６ 反射面
１０１ 突起部
１５１ 孔部
4 Light emission pointer 8 Light emission surface 8A Rear light emission surface 9 Pointer body 10 Base portion 11 Pointer base 12 Pointer cap 13 Balancer 14 Pointer 15 Diffuser 23 Mounting portion 25 Light receiving portion 26 Reflecting surface 101 Protruding portion 151 Hole

Claims (2)

指示部及び基部からなり、前記指示部及び基部に発光面を有する指針本体と、
前記基部の下方に配置され裏面側より光を受光する受光部と、この受光部に対応して形成された反射面とを有する指針台座と、
前記発光面を露出して前記指針台座の上側を覆うように配置された指針キャップと、を備えた発光指針において、
前記基部と前記指針台座との間に、前記受光部によって受光された光が拡散される拡散板を設けたことを特徴とする発光指針。 A pointer body comprising a pointing portion and a base, and having a light emitting surface on the pointing portion and the base;
A pointer pedestal having a light receiving portion disposed below the base and receiving light from the back side, and a reflecting surface formed corresponding to the light receiving portion;
In a light emitting pointer provided with a pointer cap disposed so as to expose the light emitting surface and cover the upper side of the pointer base,
A light emission pointer, wherein a diffusion plate for diffusing light received by the light receiving portion is provided between the base and the pointer base. 前記拡散板は、前記基部から突出した突出部と対応した孔部を有していることを特徴とする請求項１に記載の発光指針。   The light emission pointer according to claim 1, wherein the diffusion plate has a hole corresponding to the protruding portion protruding from the base portion.
JP2013093974A 2013-04-26 2013-04-26 Light-emitting pointer Pending JP2014215216A (en)

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JP2013093974A JP2014215216A (en) 2013-04-26 2013-04-26 Light-emitting pointer

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Application Number Priority Date Filing Date Title
JP2013093974A JP2014215216A (en) 2013-04-26 2013-04-26 Light-emitting pointer

Publications (1)

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JP2014215216A true JP2014215216A (en) 2014-11-17

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ID=51941077

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