JP6829812B2 - Instrument - Google Patents

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JP6829812B2
JP6829812B2 JP2017026628A JP2017026628A JP6829812B2 JP 6829812 B2 JP6829812 B2 JP 6829812B2 JP 2017026628 A JP2017026628 A JP 2017026628A JP 2017026628 A JP2017026628 A JP 2017026628A JP 6829812 B2 JP6829812 B2 JP 6829812B2
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ring
display
instrument
display unit
fine uneven
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JP2018132429A (en
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直亮 早川
直亮 早川
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Nippon Seiki Co Ltd
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Nippon Seiki Co Ltd
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Description

本発明は、計器に関し、詳しくは、微細な錐状突起を有する反射防止部を備える計器に関する。 The present invention relates to an instrument, and more particularly to an instrument having an antireflection portion having fine cone-shaped protrusions.

微細な錐状突起を有する反射防止部を備えた計器として、特許文献1に開示されたものがある。特許文献1に記載の計器は、カバープレートの背面に、可視光の波長以下のピッチで配置された複数の錐状凸部を有するフィルム(いわゆるモスアイ(蛾の眼)構造を利用したフィルム)を設けることにより、外光反射の低減を試みたものである。 There is an instrument disclosed in Patent Document 1 as an instrument provided with an antireflection portion having fine cone-shaped protrusions. The instrument described in Patent Document 1 has a film having a plurality of cone-shaped protrusions arranged at a pitch equal to or less than the wavelength of visible light (a film using a so-called moth eye structure) on the back surface of a cover plate. This is an attempt to reduce external light reflection by providing it.

特開2015−78924号公報Japanese Unexamined Patent Publication No. 2015-78924

特許文献1に記載の計器は、カバープレート背面の全面に渡って前記のフィルム(反射防止部)が設けられているため、カバープレートを透かして視認する表示部が鮮明に見えることで、高級感を得ることができる。一方、計器においては、加飾を目的としてカバープレートの前面側端部を覆うリング状部材を設けることが一般的に行われる。しかし、反射防止部により鮮明に見える表示部に対してリング状部材に何ら対策を施さないと双方の一体感が損なわれ、計器全体としての見栄えが低下する虞がある。 Since the instrument described in Patent Document 1 is provided with the film (antireflection portion) over the entire back surface of the cover plate, the display portion visually recognized through the cover plate can be clearly seen, giving a sense of luxury. Can be obtained. On the other hand, in an instrument, it is common practice to provide a ring-shaped member that covers the front end of the cover plate for the purpose of decoration. However, if no measures are taken for the ring-shaped member for the display portion that can be clearly seen by the antireflection portion, the sense of unity between the two is impaired, and the appearance of the instrument as a whole may deteriorate.

本発明は、上記実情に鑑みてなされたものであり、反射防止部を備える計器において、表示部とリング状部材とに一体感を持たせて計器全体の見栄えの低下を抑制することができる計器を提供することを目的とする。 The present invention has been made in view of the above circumstances, and in an instrument provided with an antireflection unit, the display unit and the ring-shaped member can be provided with a sense of unity to suppress deterioration of the appearance of the entire instrument. The purpose is to provide.

上記目的を達成するため、本発明に係る計器は、計測量を表示する表示部と、
前記表示部の前面側に位置し、前記表示部を透かして視認させる透光板と、
前記透光板の前面側端部を覆う前部を有するリング状部材と、
前記透光板の前記表示部側の面に設けられ、可視光の波長以下のピッチで配列された複数の錐状突起を有する反射防止部と、を備え、
前記表示部は、透光性の基板の前面に所定の模様をなす微細凹凸部が形成され、前記基板の背面に所定の色調である地色層が形成されてなる表示板を有し、
前記リング状部材は、前記前部に前記地色層と同様の色調である他の地色層、及び/あるいは、前記微細凹凸部と同様の模様をなす他の微細凹凸部が形成されてなる、
ことを特徴とする。
In order to achieve the above object, the instrument according to the present invention includes a display unit for displaying a measured quantity and a display unit.
A translucent plate located on the front side of the display unit and allowing the display unit to be visually recognized.
A ring-shaped member having a front portion that covers the front end portion of the light transmissive plate, and
An antireflection portion provided on the surface of the translucent plate on the display portion side and having a plurality of cone-shaped protrusions arranged at a pitch equal to or lower than the wavelength of visible light.
The display unit has a display plate in which fine uneven portions having a predetermined pattern are formed on the front surface of a translucent substrate, and a ground color layer having a predetermined color tone is formed on the back surface of the substrate.
The ring-shaped member is formed with another ground color layer having the same color tone as the ground color layer and / or other fine uneven parts having the same pattern as the fine uneven parts on the front portion. ,
It is characterized by that.

本発明によれば、表示部とリング状部材とに一体感を持たせて計器全体の見栄えの低下を抑制することができる。 According to the present invention, it is possible to give a sense of unity between the display unit and the ring-shaped member and suppress deterioration of the appearance of the entire instrument.

本発明の第1実施形態に係る計器を示す図であり、(a)は平面図、(b)は図1(a)に示すA−A線概略断面図である。It is a figure which shows the instrument which concerns on 1st Embodiment of this invention, (a) is a plan view, (b) is a schematic cross-sectional view of line AA shown in FIG. 1 (a). 図1(b)に示すB部の拡大図である。It is an enlarged view of the part B shown in FIG. 1 (b). 図1(b)に示すC部の拡大図である。It is an enlarged view of the part C shown in FIG. 1 (b). (a)図1(a)に示すA−A線断面図であり、(b)図1(a)に示すF−F線断面図である。(A) is a sectional view taken along line AA shown in FIG. 1 (a), and (b) is a sectional view taken along line FF shown in FIG. 1 (a). 図1(a)に示すG部の拡大図である。It is an enlarged view of the G part shown in FIG. 1 (a). 図1(a)に示すH−H線断面図である。FIG. 5 is a cross-sectional view taken along the line HH shown in FIG. 1A.

本発明の一実施形態について図面を参照して説明する。 An embodiment of the present invention will be described with reference to the drawings.

(第1実施形態)
第1実施形態に係る計器100は、図1(a)(b)に示すように、指針10によって計測量を表示する指針式計器として構成されている。計器100は、例えば車両に搭載され、車速、エンジン回転数、残燃料などの車両に関する計測量をユーザ(主に運転者)に表示する。本実施形態において、計器100は、車両に関する計測量として吸気圧(過給圧)を表示するいわゆるターボ計であり、吸気圧を−100kPa〜+200kPaまでの範囲で表示可能である。
(First Embodiment)
As shown in FIGS. 1A and 1B, the instrument 100 according to the first embodiment is configured as a pointer-type instrument that displays a measured quantity by a pointer 10. The instrument 100 is mounted on the vehicle, for example, and displays to the user (mainly the driver) the measured amount of the vehicle such as the vehicle speed, the engine speed, and the remaining fuel. In the present embodiment, the instrument 100 is a so-called turbo meter that displays the intake pressure (supercharging pressure) as a measured quantity related to the vehicle, and can display the intake pressure in the range of −100 kPa to +200 kPa.

以下では、構成の理解を容易にするために、計器100を断面で表した図1(b)における上側を「前面側」、下側を「背面側」として、計器100を構成する各部を適宜、説明する。なお、見易さを考慮し、図1(b)、図3(図4も同様)において断面を示すハッチングを適宜省略した。 In the following, in order to facilitate understanding of the configuration, the upper side in FIG. 1 (b) showing the instrument 100 in cross section is referred to as the “front side” and the lower side is referred to as the “back side”, and each part constituting the instrument 100 is appropriately defined. ,explain. In consideration of legibility, hatching showing a cross section in FIGS. 1 (b) and 3 (also in FIG. 4) is omitted as appropriate.

計器100は、図1(a)(b)〜図3に示すように、表示部1と、透光板2と、反射防止部3と、ケース4と、見返し部材5と、パッキン6と、ベゼル7と、リング状部材8と、を備える。なお、図3では、リング状部材8を省略して図示している。 As shown in FIGS. 1 (a) and 1 (b) to 3, the instrument 100 includes a display unit 1, a light transmitting plate 2, an antireflection unit 3, a case 4, a facing member 5, and a packing 6. A bezel 7 and a ring-shaped member 8 are provided. In FIG. 3, the ring-shaped member 8 is omitted.

表示部1は、前述した車速などの計測量を表示するものであり、指針10と、表示板11と、回路基板12と、中ケース13と、を備える。 The display unit 1 displays a measured amount such as the vehicle speed described above, and includes a pointer 10, a display board 11, a circuit board 12, and an inner case 13.

指針10は、表示板11の前面側で回転可能となっており、表示板11に形成された指標部11a(図1(a)参照)を指示する。指標部11aは、目盛、数値などから構成される。表示部1は、指針10の指示箇所と指標部11aとを対比判読させることによって、ユーザに計測量を報知する。なお、指針10は、少なくとも一部が導光部材により形成され、光源L1、L2からの光を受けて発光可能となっている。また、指標部11aは、透光性を有して形成され、表示板用光源L3からの光を受けて発光可能となっている。 The pointer 10 is rotatable on the front side of the display plate 11 and indicates an index portion 11a (see FIG. 1A) formed on the display plate 11. The index unit 11a is composed of a scale, a numerical value, and the like. The display unit 1 notifies the user of the measured amount by comparing and reading the indicated portion of the pointer 10 and the index unit 11a. At least a part of the pointer 10 is formed of a light guide member, and can emit light by receiving light from light sources L1 and L2. Further, the index unit 11a is formed to have translucency, and can emit light by receiving light from the light source L3 for the display board.

表示板11については、後で詳述する。 The display board 11 will be described in detail later.

回路基板12は、プリント回路板からなり、指針10を回転駆動するモータ14(例えばステッピングモータ)や、指針10を照明する光源L1、L2や、表示板11を照明する表示板用光源L3などが実装されている。モータ14は、その回転軸14aに取り付けられた指針10を、計測量に応じて回転させる。 The circuit board 12 is composed of a printed circuit board, and includes a motor 14 (for example, a stepping motor) that rotationally drives the pointer 10, light sources L1 and L2 that illuminate the pointer 10, light sources L3 for the display board that illuminate the display board 11, and the like. It is implemented. The motor 14 rotates the pointer 10 attached to the rotating shaft 14a according to the measured amount.

回路基板12に実装された部品は、図示しない制御部の制御の下で動作する。制御部は、マイクロコンピュータ等から構成され、ECU(Electronic Control Unit)や、車速センサ等の各種センサから、各種の計測量を示すデータを取得する。このように取得したデータに基づいて、制御部は、モータ14を駆動して、車速などの計測量に応じた回転角だけ指針10を回転させる。また、制御部は、光源L1、L2や表示板用光源L3の点灯制御を行う。 The components mounted on the circuit board 12 operate under the control of a control unit (not shown). The control unit is composed of a microcomputer or the like, and acquires data indicating various measured quantities from various sensors such as an ECU (Electronic Control Unit) and a vehicle speed sensor. Based on the data acquired in this way, the control unit drives the motor 14 to rotate the pointer 10 by a rotation angle corresponding to a measured amount such as a vehicle speed. Further, the control unit controls the lighting of the light sources L1 and L2 and the light source L3 for the display board.

中ケース13は、表示板11と回路基板12との間に位置し、表示板11を支持する。中ケース13は、所定の樹脂から例えば白色に形成され、表示板用光源L3が発した光を効率良く表示板11へと導く照明室13aを有している。照明室13aよりも回転軸14a側には、光源L1、L2が発した光を指針10へと導く導光部材15が設けられている。 The middle case 13 is located between the display board 11 and the circuit board 12, and supports the display board 11. The inner case 13 is formed of, for example, white from a predetermined resin, and has a lighting chamber 13a that efficiently guides the light emitted by the light source L3 for the display board to the display board 11. A light guide member 15 for guiding the light emitted by the light sources L1 and L2 to the pointer 10 is provided on the rotation shaft 14a side of the illumination chamber 13a.

透光板2は、PMMA(ポリメタクリル酸メチル樹脂)などの透光性の樹脂からなり、表示部1の前面側に位置する。透光板2は、図1(a)に示すように、平面視で円状に形成されている。 The translucent plate 2 is made of a translucent resin such as PMMA (polymethyl methacrylate resin) and is located on the front surface side of the display unit 1. As shown in FIG. 1A, the light transmitting plate 2 is formed in a circular shape in a plan view.

反射防止部3は、図2に拡大して示すように、フィルム状の基材30に、モスアイ構造の凹凸層31がコーティングされることで構成されるフィルム(シート)である。反射防止部3は、高透明性を有する粘着剤Sによって透光板2の背面に密着固定されている。なお、反射防止部3は、透光板2を射出成形する際に、透光板2に溶融固着されてもよい。 As shown in an enlarged view in FIG. 2, the antireflection portion 3 is a film (sheet) formed by coating a film-like base material 30 with an uneven layer 31 having a moth-eye structure. The antireflection portion 3 is closely fixed to the back surface of the light transmitting plate 2 by the highly transparent adhesive S. The antireflection unit 3 may be melt-fixed to the light-transmitting plate 2 when the light-transmitting plate 2 is injection-molded.

反射防止部3は、透光板2の端部2a(図3参照)を避けるように、透光板2よりも一回り小さい円状に形成されている。反射防止部3の形成領域については後に詳述する。 The antireflection portion 3 is formed in a circular shape that is one size smaller than the light transmitting plate 2 so as to avoid the end portion 2a (see FIG. 3) of the light transmitting plate 2. The formation region of the antireflection portion 3 will be described in detail later.

基材30は、トリアセチルセルロース(TAC)、ポリエチレンテレフタラート(PET)、ポリカーボネート(PC)等の樹脂から形成されている。基材30としては、例えば厚さ5〜300μm程度で、光学的特性に優れた材料が選定される。 The base material 30 is formed of a resin such as triacetyl cellulose (TAC), polyethylene terephthalate (PET), and polycarbonate (PC). As the base material 30, for example, a material having a thickness of about 5 to 300 μm and having excellent optical characteristics is selected.

凹凸層31は、モスアイ構造で形成されるものであり、複数の錐状突起31aが、可視光の波長以下の配列ピッチPで二次元的(基材30の背面に沿って)に配列されることで構成されている。 The concave-convex layer 31 is formed by a moth-eye structure, and a plurality of cone-shaped protrusions 31a are arranged two-dimensionally (along the back surface of the base material 30) at an arrangement pitch P equal to or less than the wavelength of visible light. It is composed of things.

錐状突起31aの配列ピッチPは、可視光の波長以下であれば特に限定されるものではないが、反射率の波長依存性に影響を及ぼすため、目的に応じて適切な値となるように形成されている。配列ピッチPは、例えば、100nm程度に設定されている。なお、配列ピッチPは、数十nm〜数百nmの範囲で適宜変更が可能である。錐状突起31aの高さHも、反射率の波長依存性に影響を及ぼすため、目的に応じて適切な値となるように形成されている。例えば、高さHは、数100nm程度である。 The arrangement pitch P of the pyramidal protrusions 31a is not particularly limited as long as it is equal to or less than the wavelength of visible light, but it affects the wavelength dependence of the reflectance, so that it should be an appropriate value according to the purpose. It is formed. The array pitch P is set to, for example, about 100 nm. The arrangement pitch P can be appropriately changed in the range of several tens of nm to several hundreds of nm. Since the height H of the pyramidal protrusion 31a also affects the wavelength dependence of the reflectance, it is formed so as to have an appropriate value according to the purpose. For example, the height H is about several hundred nm.

なお、錐状突起31aにおける「錐状」とは、完全な円錐や角錐だけを意味せず、概ね錐体状であればよく、先細りになっている形状(断面楔状)であればよい。また、錐状突起31aの先端部は、図2に示すように曲面状であってもよく、尖っていなくともよい。また、錐状突起31aの先端部を平坦にすることもできる。錐状突起31aは、モスアイ構造を実現するために少なくとも先細りに形成される必要があるが、製造上の制約や目的に応じてその詳細構造は適宜変更可能である。 The "cone shape" in the cone-shaped protrusion 31a does not mean only a perfect cone or a pyramid, but may be generally a cone shape or a tapered shape (cross-sectional wedge shape). Further, the tip portion of the conical protrusion 31a may be curved as shown in FIG. 2 or may not be sharp. Further, the tip portion of the cone-shaped protrusion 31a can be flattened. The pyramidal protrusion 31a needs to be formed at least tapered in order to realize the moth-eye structure, but the detailed structure thereof can be appropriately changed depending on manufacturing restrictions and purposes.

反射防止部3は、基材30上に、光硬化性(UV(Ultraviolet)、EB(Electron Beam)硬化性など)を有する樹脂層を形成後、スタンパでモスアイ形状を転写し、光照射により当該樹脂層を硬化させることで凹凸層31を形成して、製造される。なお、凹凸層31は、後述するように親水性を有して形成されることが好ましい。 The antireflection unit 3 forms a photocurable (UV (Ultraviolet), EB (Electron Beam) curable, etc.) resin layer on the base material 30, transfers the moth-eye shape with a stamper, and irradiates the base material with light. The uneven layer 31 is formed by curing the resin layer, and is manufactured. The uneven layer 31 is preferably formed with hydrophilicity as described later.

このように、透光板2に、モスアイ構造を利用した反射防止部3を設けることにより、計器100外部から入射し、透光板2から、透光板2と表示部1との間の空気層へと透過する光について、屈折率を連続的に変化させることができる(屈折率に不連続な界面が生じることを避けることができる)。このため、入射光が透光板2の背面で界面反射することが抑制され、外景や太陽光、照明の映り込みが少なくなり、表示部1の視認性が向上する。また、このように反射防止部3が設けられた透光板2においては、表示部1から出射された光(指針10の照明光や、表示板11の照明光)の透過率が高まるため、光源L1、L2や表示板用光源L3の発光輝度を必要以上に大きくする必要がなく、計器100の消費電力を抑えることができる。 In this way, by providing the light-transmitting plate 2 with the antireflection unit 3 using the moth-eye structure, the air is incident from the outside of the instrument 100, and the air between the light-transmitting plate 2 and the display unit 1 is incident from the light-transmitting plate 2. The refractive index of the light transmitted through the layer can be changed continuously (it is possible to avoid the occurrence of a discontinuous interface in the refractive index). Therefore, it is suppressed that the incident light is interfacially reflected on the back surface of the light transmitting plate 2, the reflection of the outside view, sunlight, and illumination is reduced, and the visibility of the display unit 1 is improved. Further, in the translucent plate 2 provided with the antireflection unit 3 in this way, the transmittance of the light emitted from the display unit 1 (illumination light of the pointer 10 and illumination light of the display plate 11) is increased. It is not necessary to increase the emission brightness of the light sources L1 and L2 and the light source L3 for the display board more than necessary, and the power consumption of the instrument 100 can be suppressed.

なお、透光板2の前面に、AR(Anti-Reflective)コートを施し、さらに反射低減効果を得るようにしてもよい。ARコートは、例えば、フッ化マグネシウムなどを真空蒸着させる手法で形成される。 An AR (Anti-Reflective) coating may be applied to the front surface of the light transmitting plate 2 to further obtain a reflection reducing effect. The AR coat is formed by, for example, vacuum-depositing magnesium fluoride or the like.

ケース4は、樹脂や金属などから有底筒状に形成され、表示部1を収容する。図3に示すように、ケース4の開口端には、ケース4の外径方向に突出するフランジ4aが形成されている。 The case 4 is formed of a resin, metal, or the like into a bottomed tubular shape, and houses the display unit 1. As shown in FIG. 3, a flange 4a projecting in the outer diameter direction of the case 4 is formed at the open end of the case 4.

見返し部材5は、規定部材の一例であり、所定の樹脂などから例えば黒色に形成され、計器100内部の不要な部分を覆い隠すものである。見返し部材5によって、図3に示すように、表示部1の表示領域D1が規定される。見返し部材5は、表示部1と透光板2との間に位置し、表示部1の外周部を囲むように設けられている。 The back member 5 is an example of a specified member, and is formed of, for example, black from a predetermined resin or the like, and covers an unnecessary portion inside the instrument 100. As shown in FIG. 3, the return member 5 defines the display area D1 of the display unit 1. The return member 5 is located between the display unit 1 and the light transmitting plate 2, and is provided so as to surround the outer peripheral portion of the display unit 1.

見返し部材5は、図3に示すように、透光板2の端部2aを支持する支持部50と、表示部1に向かって斜降する斜降部51と、支持部50から折り曲げられるように形成されて、支持部50と斜降部51とを繋ぐ折曲部52と、を有する。 As shown in FIG. 3, the facing member 5 is bent from the support portion 50 that supports the end portion 2a of the light transmitting plate 2, the oblique descending portion 51 that obliquely descends toward the display portion 1, and the support portion 50. It has a bent portion 52 which is formed in the above and connects the support portion 50 and the inclined portion 51.

支持部50は、ケース4のフランジ4aに支持される円筒状の部分である。支持部50の上端には、透光板2の端部2aに合わせて段差50aが形成されており、この段差50aに透光板2が載置される。 The support portion 50 is a cylindrical portion supported by the flange 4a of the case 4. A step 50a is formed at the upper end of the support portion 50 in accordance with the end portion 2a of the light transmitting plate 2, and the light transmitting plate 2 is placed on the step 50a.

斜降部51は、円錐台状の筒形をなしている。斜降部51は、支持部50の上端部から折曲部52を経て、表示部1の表示板11に向かって斜降する。斜降部51の先端は、表示板11とは若干の間隔を空けて位置して当接しない。 The inclined portion 51 has a truncated cone-like tubular shape. The oblique descending portion 51 obliquely descends from the upper end portion of the support portion 50 to the display plate 11 of the display unit 1 via the bent portion 52. The tip of the inclined portion 51 is positioned at a slight distance from the display plate 11 and does not come into contact with the display plate 11.

図3に示すように、斜降部51は、表示領域D1と隣り合う領域D2に位置する。また、折曲部52は、領域D2と隣り合う、領域D3に位置する。また、後述の挟持部9に挟持される透光板2の端部2aは、領域D3と隣り合う、領域D4内に位置する。まとめると、これらの領域は、表示部1の中心から外径方向に向かって、表示領域D1、領域D2、領域D3、領域D4の順で位置している。 As shown in FIG. 3, the oblique descending portion 51 is located in the area D2 adjacent to the display area D1. Further, the bent portion 52 is located in the region D3 adjacent to the region D2. Further, the end portion 2a of the light transmitting plate 2 sandwiched between the sandwiching portions 9 described later is located in the region D4 adjacent to the region D3. In summary, these regions are located in the order of display region D1, region D2, region D3, and region D4 from the center of the display unit 1 toward the outer diameter direction.

パッキン6は、円状の透光板2の端部2aに沿うように円環状に形成された弾性部材(エラストマーなど)からなる。パッキン6は、図3に示すように、断面略L字状をなし、透光板2の端部2aの前面と、側面の一部とを覆う。 The packing 6 is made of an elastic member (elastomer or the like) formed in an annular shape along the end portion 2a of the circular translucent plate 2. As shown in FIG. 3, the packing 6 has a substantially L-shaped cross section and covers the front surface and a part of the side surface of the end portion 2a of the light transmitting plate 2.

この実施形態では、パッキン6と見返し部材5とが、透光板2の端部2aを挟持する挟持部9を構成する。挟持部9は、後述するように、ベゼル7によって外周側からかしめられる。 In this embodiment, the packing 6 and the back member 5 form a holding portion 9 that holds the end portion 2a of the light transmitting plate 2. The sandwiching portion 9 is crimped from the outer peripheral side by the bezel 7, as will be described later.

なお、挟持部9や反射防止部3について、主に、図3を参照して説明しているが、挟持部9や反射防止部3は、表示部1の中心軸線(回転軸14aに沿う軸線)周りに概ね回転対称に形成されているため、挟持部9や反射防止部3を、当該軸線を通る任意の断面で切った場合の形状は、図3に示す形状と概ね同様となる。 The sandwiching portion 9 and the antireflection portion 3 are mainly described with reference to FIG. 3, but the sandwiching portion 9 and the antireflection portion 3 are the central axis of the display unit 1 (the axis along the rotation axis 14a). ) Since it is formed substantially rotationally symmetricly around it, the shape when the sandwiching portion 9 and the antireflection portion 3 are cut at an arbitrary cross section passing through the axis is substantially the same as the shape shown in FIG.

パッキン6のうち、透光板2の端部2aの前面を覆う箇所には、当該端部2aに向かって突起するリブ6aが形成されている。ベゼル7によって挟持部9がかしめられると、主に、リブ6aと支持部50(段差50a)によって、透光板2は挟持される。パッキン6の前面側には、リブ6aと対応するように溝6bが形成されている。この溝6bは、挟持部9がかしめられた際に、パッキン6から透光板2に与えられる圧力などを適度に保つために設けられている。 A rib 6a protruding toward the end portion 2a is formed in a portion of the packing 6 that covers the front surface of the end portion 2a of the light transmitting plate 2. When the sandwiching portion 9 is crimped by the bezel 7, the light transmitting plate 2 is sandwiched mainly by the rib 6a and the supporting portion 50 (step 50a). A groove 6b is formed on the front surface side of the packing 6 so as to correspond to the rib 6a. The groove 6b is provided to appropriately maintain the pressure applied from the packing 6 to the light transmitting plate 2 when the sandwiching portion 9 is crimped.

パッキン6のうち、透光板2の端部2aの側面を覆う箇所は、見返し部材5の支持部50の天面に向かって垂れ下がる垂下部6cとなっている。なお、挟持部9がかしめられると、支持部50と垂下部6cとは密着する。 The portion of the packing 6 that covers the side surface of the end portion 2a of the light transmitting plate 2 is a hanging portion 6c that hangs down toward the top surface of the support portion 50 of the facing member 5. When the sandwiching portion 9 is crimped, the supporting portion 50 and the hanging portion 6c are in close contact with each other.

ベゼル7は、例えば金属からなる枠体であり、後述するリング状部材8と同様に、平面視で円環状に形成されている。ベゼル7は、図3に示すように、ケース4の開口端(フランジ4a)と挟持部9(見返し部材5及びパッキン6)とを挟むようにして、かしめて固定する(かしめ固定)。これにより、挟持部9に透光板2を挟み込む力が与えられると共に、透光板2を挟持する挟持部9がケース4に固定される。 The bezel 7 is, for example, a frame made of metal, and is formed in an annular shape in a plan view like the ring-shaped member 8 described later. As shown in FIG. 3, the bezel 7 is crimped and fixed by sandwiching the open end (flange 4a) of the case 4 and the holding portion 9 (return member 5 and packing 6). As a result, a force for sandwiching the light transmitting plate 2 is applied to the sandwiching portion 9, and the sandwiching portion 9 for sandwiching the light transmitting plate 2 is fixed to the case 4.

リング状部材8は、本発明のリング状部材の一例であり、所定の樹脂などから、図1に示すように平面視で円環状に形成されている。リング状部材8は、主に計器100の装飾を目的として設けられる。リング状部材8は、透光板2の前面側端部を覆うように設けられる前部8aを備える。リング状部材8の前部8aの詳細については、表示板11とともに後で詳述する。 The ring-shaped member 8 is an example of the ring-shaped member of the present invention, and is formed of a predetermined resin or the like in an annular shape in a plan view as shown in FIG. The ring-shaped member 8 is provided mainly for the purpose of decorating the instrument 100. The ring-shaped member 8 includes a front portion 8a provided so as to cover the front side end portion of the light transmitting plate 2. Details of the front portion 8a of the ring-shaped member 8 will be described in detail later together with the display plate 11.

(反射防止部の形成領域について)
ここからは、図3を参照して、反射防止部3の形成領域について説明する。
この実施形態の計器100では、反射防止部3は、挟持部9に挟持される透光板2の端部2aを避けて設けられ、且つ、挟持部9と接触しないように設けられている。具体的には、反射防止部3の端面と透光板2の端部2aとの間には、適度なクリアランス(領域D3の幅に相当)が設けられている。このようにしたので、反射防止部3が熱膨張などにより外装部品と接触してしまい、剥がれてしまったり、反射防止部3に気泡が入り込んでしまったりすることを防止できる。
(Regarding the formation area of the antireflection part)
From here on, the formation region of the antireflection portion 3 will be described with reference to FIG.
In the instrument 100 of this embodiment, the antireflection portion 3 is provided so as to avoid the end portion 2a of the light transmitting plate 2 sandwiched between the sandwiching portions 9 and not to come into contact with the sandwiching portion 9. Specifically, an appropriate clearance (corresponding to the width of the region D3) is provided between the end surface of the antireflection portion 3 and the end portion 2a of the light transmissive plate 2. Since this is done, it is possible to prevent the antireflection portion 3 from coming into contact with the exterior parts due to thermal expansion or the like and peeling off, or preventing air bubbles from entering the antireflection portion 3.

また、斜降部51の先端(表示領域D1と領域D2の境界)は、反射防止部3の周端よりも表示部1の中心側に位置する。この位置関係によれば、反射防止部3の周端は、見返し部材5と重なることになる。そのため、反射防止部3の端面が透光板2を透かしてライン状に視認されることを抑制することができ、見栄えの低下を抑制することができる。 Further, the tip of the oblique descending portion 51 (the boundary between the display region D1 and the region D2) is located closer to the center of the display portion 1 than the peripheral end of the antireflection portion 3. According to this positional relationship, the peripheral end of the antireflection portion 3 overlaps with the return member 5. Therefore, it is possible to prevent the end face of the antireflection portion 3 from being visually recognized in a line shape through the light transmitting plate 2, and it is possible to suppress a deterioration in appearance.

また、計器100の厚み方向(図3の上下方向)から見て、折曲部52と斜降部51の境界(領域D3と領域D2の境界)が、反射防止部3の周端と合わせられている。この位置関係によれば、折曲部52と斜降部51の角が、反射防止部3の周端の真下に位置することになるため、反射防止部3の端面が透光板2を透かしてライン状に視認されることを、より良好に抑制することができる。 Further, when viewed from the thickness direction of the instrument 100 (vertical direction in FIG. 3), the boundary between the bent portion 52 and the oblique descending portion 51 (the boundary between the region D3 and the region D2) is aligned with the peripheral end of the antireflection portion 3. ing. According to this positional relationship, the corners of the bent portion 52 and the oblique descending portion 51 are located directly below the peripheral end of the antireflection portion 3, so that the end surface of the antireflection portion 3 sees through the light transmitting plate 2. It is possible to better suppress the visual appearance in a line shape.

また、計器100の厚み方向から見て、ベゼル7の前面側の端は、反射防止部3の周端よりも表示部1の中心側に位置する。つまり、ベゼル7の前面側の端(先端)は、領域D3と領域D2の境界よりも、領域D2側に位置する。このようにすれば、表示部1を多少斜めから見た際においても、反射防止部3の端面が目立たなくなるため、見栄えの低下を、より良好に抑制することができる。なお、ベゼル7の前面側の端を、反射防止部3の周端と丁度一致させるようにしてもよい。 Further, when viewed from the thickness direction of the instrument 100, the front end of the bezel 7 is located closer to the center of the display unit 1 than the peripheral end of the antireflection unit 3. That is, the front end (tip) of the bezel 7 is located on the region D2 side of the boundary between the region D3 and the region D2. By doing so, even when the display unit 1 is viewed from a slightly oblique angle, the end surface of the antireflection unit 3 becomes inconspicuous, so that the deterioration of the appearance can be suppressed more satisfactorily. The front end of the bezel 7 may be exactly aligned with the peripheral end of the antireflection portion 3.

なお、凹凸層31は、モスアイ構造による反射防止性能に併せて、防曇性能を確保すべく、親水性を有して形成されることが好ましい。そうすれば、親水性樹脂から構成されることによる濡れ性と、モスアイ構造との相乗効果によって、計器100内に存在する水分の凝集によってできた水が、透光板2の背面に形成されても光を乱反射させる粒径(数μm〜数十μm)の微細な水滴とならず、且つ、接触角が鋭角な状態で保持されることを防ぐことができ、曇りとして白く視認されることを防止することができるためである。結果として防曇剤の塗布が不要となる程度の防塵効果を得ることもできる。このような防塵性能も併せて実現するには、例えば、凹凸層31を、UV硬化性樹脂中に親水性ポリマー(タンパク質、ポリエステルアミドなど)を含有させた材料、UV照射時に親水性を示す光触媒(酸化チタン)を用いた材料などから構成すればよい。 The concavo-convex layer 31 is preferably formed with hydrophilicity in order to ensure antifogging performance in addition to antireflection performance due to the moth-eye structure. Then, due to the synergistic effect of the wettability due to the hydrophilic resin and the moth-eye structure, the water formed by the aggregation of the water existing in the instrument 100 is formed on the back surface of the translucent plate 2. However, it does not become fine water droplets with a particle size (several μm to several tens of μm) that diffusely reflects light, and it is possible to prevent the contact angle from being maintained at an acute angle, so that it is visually recognized as cloudy. This is because it can be prevented. As a result, it is possible to obtain a dustproof effect that does not require the application of an antifogging agent. In order to realize such dustproof performance as well, for example, the concave-convex layer 31 is made of a material containing a hydrophilic polymer (protein, polyesteramide, etc.) in a UV curable resin, and a photocatalyst that exhibits hydrophilicity when irradiated with UV. It may be composed of a material using (titanium oxide) or the like.

(表示板とリング状部材の前部について)
表示板11は、主目盛部11a1,第一の副目盛部11a2,第二の副目盛部11a3及び文字部11a4からなる指標部11aが形成された板状の部材である。表示板11の表示面(前面)は、指針10の回転中心(回転軸14a)を中心とした円状の中央領域(第一の領域の一例)E1と、中央領域E1の外周を囲むリング状領域(第二の領域の一例)E2と、を有する。中央領域E1には、文字部11a4の一部が形成され、リング状領域E2には、主目盛部11a1,第一の副目盛部11a2,第二の副目盛部11a3及び文字部11a4の一部が形成されている。表示板11は、中央部分に指針10の基部が貫通する貫通孔HLを有する。
(About the front part of the display board and ring-shaped member)
The display plate 11 is a plate-shaped member on which an index portion 11a including a main scale portion 11a1, a first sub-scale portion 11a2, a second sub-scale portion 11a3, and a character portion 11a4 is formed. The display surface (front surface) of the display plate 11 has a circular central region (an example of the first region) E1 centered on the rotation center (rotation shaft 14a) of the pointer 10 and a ring shape surrounding the outer periphery of the central region E1. It has a region (an example of a second region) E2 and. A part of the character portion 11a4 is formed in the central region E1, and a part of the main scale portion 11a1, the first sub-scale portion 11a2, the second sub-scale portion 11a3 and the character portion 11a4 are formed in the ring-shaped region E2. Is formed. The display plate 11 has a through hole HL through which the base of the pointer 10 penetrates in the central portion.

主目盛部11a1は、所定の値を示すように配置された複数の目盛からなる。具体的に、計器100の主目盛部11a1は、−100kPa,−80kPa,−60kPa,−40kPa,−20kPa,0kPa,+50kPa,+100kPa,+150kPa及び+200kPaの数値を示す10個の目盛である。主目盛部11a1は、最小目盛位置が時計目盛位置の6時の位置となり、また最大目盛位置が時計目盛位置の3時の位置となり、指針10の回転中心を中心とした約270°の円弧を描くようにマイナス(負圧)側は間隔が狭く、プラス(正圧)側は間隔がマイナス側よりも広くなる不均等なレイアウトで表示板11に配置されている。 The main scale portion 11a1 is composed of a plurality of scales arranged so as to indicate a predetermined value. Specifically, the main scale portion 11a1 of the instrument 100 is 10 scales showing numerical values of -100 kPa, -80 kPa, -60 kPa, -40 kPa, -20 kPa, 0 kPa, + 50 kPa, + 100 kPa, + 150 kPa and + 200 kPa. The main scale portion 11a1 has a minimum scale position at 6 o'clock at the clock scale position and a maximum scale position at 3 o'clock at the clock scale position, and forms an arc of about 270 ° centered on the rotation center of the pointer 10. As drawn, the minus (negative pressure) side is arranged on the display board 11 in an uneven layout in which the interval is narrow and the plus (positive pressure) side is wider than the minus side.

第一の副目盛部11a2は、主目盛部11a1の各目盛間の内側に配置された複数の目盛からなり、主目盛部11a1の各目盛よりも短く形成されている。具体的に、第一の副目盛部11a2の各目盛は、主目盛部11a1の各目盛間にマイナス側にあっては1個ずつ、プラス側にあっては4個ずつ、すなわち10kPa毎に配置されている。 The first sub-scale portion 11a2 is composed of a plurality of scales arranged inside between the scales of the main scale portion 11a1, and is formed shorter than each scale of the main scale portion 11a1. Specifically, each scale of the first sub-scale portion 11a2 is arranged between each scale of the main scale portion 11a1 by one on the minus side and four on the plus side, that is, every 10 kPa. Has been done.

第二の副目盛部11a3は、主目盛部11a1の各目盛間の外側に配置された複数の目盛からなり、主目盛部11a1の各目盛よりも短く形成されている。具体的に、第二の副目盛部11a3の各目盛は、主目盛部11a1の各目盛間にマイナス側にあっては7個ずつ、プラス側にあっては19個ずつ、すなわち2.5kPa毎に配置されている。 The second sub-scale portion 11a3 is composed of a plurality of scales arranged outside between the scales of the main scale portion 11a1, and is formed shorter than each scale of the main scale portion 11a1. Specifically, each scale of the second sub-scale portion 11a3 is 7 on the minus side and 19 on the plus side between each scale of the main scale portion 11a1, that is, every 2.5 kPa. Is located in.

文字部11a4は、主目盛部11a1が示す数値(の一部)を表した数字や計器100の種別や表示単位を表す文字からなる。具体的に、計器100の文字部11a4は、主目盛部11a1が示す数値を表した「0.8」,「0.6」,「0.4」,「0.2」,「0」,「0.5」,「1.0」,「1.5」及び「2.0」なる数字と、計器100の種別を示す「TURBO」なる文字と、表示単位を示す「×100kPa」なる数字及び文字と、からなる。 The character portion 11a4 is composed of a number representing (a part of) the numerical value indicated by the main scale portion 11a1 and a character representing the type and display unit of the instrument 100. Specifically, the character portion 11a4 of the instrument 100 represents the numerical values indicated by the main scale portion 11a1 "0.8", "0.6", "0.4", "0.2", "0", The numbers "0.5", "1.0", "1.5" and "2.0", the letters "TURBO" indicating the type of the instrument 100, and the numbers "x100 kPa" indicating the display unit. And letters.

図4は、表示板11を示す拡大断面図であり、図4(a)は図1中のA−A線断面図であり、図4(b)は図1中のF−F線断面図である。表示板11は、指針10の裏側に位置する。表示板11は、透過性の基板11bの前面(図3における上面)に、主目盛部11a1となる個所に設けられる凸部11cと、中央領域E1となる個所に設けられる第一の微細凹凸部11dと、主目盛部11a1の除くリング状領域E2となる個所に設けられる第二の微細凹凸部11eと、リング状領域E2の中央領域E1との境界部分(内側境界部分)となる個所及びリング状領域E2のリング状領域E2より外側の外縁領域E3(図1では図示せず)との境界部分(外側境界部分)となる個所に設けられる平滑部11fと、を備えて構成される。また、表示板11は、基板11bの背面(図3における下面)に、中央領域E1及び外縁領域E3となる個所に設けられる第一の地色層11gと、リング状領域E2となる個所に設けられる第二の地色層11hと、備えて構成される。 4A and 4B are enlarged cross-sectional views showing the display plate 11, FIG. 4A is a sectional view taken along line AA in FIG. 1, and FIG. 4B is a sectional view taken along line FF in FIG. Is. The display board 11 is located on the back side of the pointer 10. The display plate 11 has a convex portion 11c provided on the front surface (upper surface in FIG. 3) of the transparent substrate 11b at a location serving as the main scale portion 11a1 and a first fine uneven portion provided at a location serving as the central region E1. A portion and a ring that serve as a boundary portion (inner boundary portion) between 11d, a second fine uneven portion 11e provided at a portion that becomes a ring-shaped region E2 excluding the main scale portion 11a1, and a central region E1 of the ring-shaped region E2. It is configured to include a smoothing portion 11f provided at a position serving as a boundary portion (outer boundary portion) with the outer edge region E3 (not shown in FIG. 1) outside the ring-shaped region E2 of the shape region E2. Further, the display board 11 is provided on the back surface (lower surface in FIG. 3) of the substrate 11b at a location serving as a central region E1 and an outer edge region E3, and a first chromosphere 11g provided at a location serving as a ring-shaped region E2. A second chromosphere 11h is provided.

透過性の基板11bは、例えばアクリル、ポリカーボネート樹脂からなる透明または着色された透光性の材料で構成される板状あるいはシート状の部材である。基板11bは、計器100の外形に対応して、例えば図1に示すように、円板状に形成される。 The permeable substrate 11b is a plate-shaped or sheet-shaped member made of a transparent or colored translucent material made of, for example, acrylic or polycarbonate resin. The substrate 11b is formed in a disk shape, for example, as shown in FIG. 1, corresponding to the outer shape of the instrument 100.

凸部11c,第一の微細凹凸部11d,第二の微細凹凸部11e及び平滑部11fは、例えば紫外線硬化樹脂層11iで構成され、例えば型成形される。型成形による場合、まず、凸部11c,第一の微細凹凸部11d,第二の微細凹凸部11e及び平滑部11fに対応した形状(凹部,微細凹凸及び平面部)が形成された金型を用意する。次に、前記金型に紫外線硬化樹脂を充填し紫外線硬化樹脂層11iを形成する。次に、紫外線硬化樹脂層11iの前記金型側と反対側の面に基板11bを配置する。次に、基板11b側から紫外線を照射して紫外線硬化樹脂層11iを硬化させる。次に、紫外線硬化樹脂層11i及び基板11bを前記金型から剥離させる。これにより、凸部11c,第一の微細凹凸部11d,第二の微細凹凸部11e及び平滑部11fを得ることができる。なお、凸部11c,第一の微細凹凸部11d,第二の微細凹凸部11e及び平滑部11fは樹脂材料による型成形のほか、インクによる印刷成形や基板11bの表面を切削するなどによって形成してもよい。また、第一,第二の微細凹凸部11d,11eの高さ(微細の程度)は任意であるが、視認者が見て凹凸であることを認識できない程度とすることが望ましい。 The convex portion 11c, the first fine uneven portion 11d, the second fine uneven portion 11e, and the smooth portion 11f are composed of, for example, an ultraviolet curable resin layer 11i, and are molded, for example. In the case of mold molding, first, a mold having a shape (concave portion, fine unevenness and flat surface portion) corresponding to the convex portion 11c, the first fine uneven portion 11d, the second fine uneven portion 11e and the smooth portion 11f is formed. prepare. Next, the mold is filled with an ultraviolet curable resin to form an ultraviolet curable resin layer 11i. Next, the substrate 11b is arranged on the surface of the ultraviolet curable resin layer 11i opposite to the mold side. Next, the ultraviolet curable resin layer 11i is cured by irradiating ultraviolet rays from the substrate 11b side. Next, the ultraviolet curable resin layer 11i and the substrate 11b are peeled off from the mold. As a result, the convex portion 11c, the first fine concavo-convex portion 11d, the second fine concavo-convex portion 11e, and the smooth portion 11f can be obtained. The convex portion 11c, the first fine concavo-convex portion 11d, the second fine concavo-convex portion 11e, and the smooth portion 11f are formed by molding with a resin material, printing molding with ink, or cutting the surface of the substrate 11b. You may. Further, although the heights (degree of fineness) of the first and second fine uneven portions 11d and 11e are arbitrary, it is desirable that the heights (degree of fineness) of the first and second fine uneven portions 11d and 11e cannot be recognized by the viewer.

凸部11cは、前述のように、基板11bの主目盛部11a1となる個所に第一,第二の微細凹凸部11d,11eよりも前側に突出するように設けられる。凸部11cの表面には、印刷やホットスタンプ等によって、透光性の着色層11jが設けられる。着色層11jは、任意の色調が選択される。例えば明度の高い白やシルバーによれば第二の光源160の非点灯時にも凸部11cの視認性を高めることができ、明度の低い黒やガンメタリックとすれば第二の光源160の非点灯時に凸部11cを視認されにくくできる。また、凸部11cの表面は、平滑化処理されてもよい。ここで、平滑化処理とは凸部11cの表面粗さを形成時よりも小さくする(表面を滑らかにする)処理をいう。平滑化処理の具体的手段としては、無色透明層の印刷形成や研磨処理が挙げられる。凸部11cの表面に平滑化処理を施すことによって、凸部11cの表面を光沢度の高い状態にでき、より立体感を強調することができる。また、凸部11cの透明度を上げることができるため透過照明の輝度を向上することができる。 As described above, the convex portion 11c is provided at a portion of the substrate 11b that becomes the main scale portion 11a1 so as to project forward from the first and second fine uneven portions 11d and 11e. A translucent colored layer 11j is provided on the surface of the convex portion 11c by printing, hot stamping, or the like. Any color tone is selected for the colored layer 11j. For example, according to high-brightness white or silver, the visibility of the convex portion 11c can be improved even when the second light source 160 is not lit, and when low-brightness black or gun metallic is used, the second light source 160 is not lit. Sometimes the convex portion 11c can be made difficult to see. Further, the surface of the convex portion 11c may be smoothed. Here, the smoothing treatment refers to a treatment in which the surface roughness of the convex portion 11c is made smaller (smoothing the surface) than at the time of formation. Specific means of the smoothing treatment include print formation and polishing treatment of a colorless transparent layer. By applying a smoothing treatment to the surface of the convex portion 11c, the surface of the convex portion 11c can be brought into a state of high glossiness, and the three-dimensional effect can be further emphasized. Further, since the transparency of the convex portion 11c can be increased, the brightness of the transmitted illumination can be improved.

第一の微細凹凸部11dは、前述のように、基板11bの前面の中央領域E1となる個所に設けられる。図5は図1における表示板11の部分Gの拡大図である。図5に示すように、第一の微細凹凸部11dは、指針10の回転中心を中心とした同心円状の模様(以下、第一の模様とも言う)をなす。第一の微細凹凸部11dによる第一の模様は、金属板に形成されるヘアラインを表現している金属調模様である。 As described above, the first fine concavo-convex portion 11d is provided at a position serving as the central region E1 on the front surface of the substrate 11b. FIG. 5 is an enlarged view of a portion G of the display board 11 in FIG. As shown in FIG. 5, the first fine concavo-convex portion 11d forms a concentric pattern (hereinafter, also referred to as the first pattern) centered on the rotation center of the pointer 10. The first pattern formed by the first fine uneven portion 11d is a metallic pattern expressing a hairline formed on a metal plate.

第二の微細凹凸部11eは、前述のように、基板11bの前面の主目盛部11a1の除くリング状領域E2となる個所に設けられる。図5に示すように、第二の微細凹凸部11eは、指針10の回転中心を中心とした放射状(旭光状)の模様(以下、第二の模様とも言う)をなす。第二の微細凹凸部11eによる第二の模様は、金属板に形成されるヘアラインを表現している金属調模様である。また、第二の微細凹凸部11eは、第一の微細凹凸部11dがなす第一の模様(本実施形態では同心円状)とは異なる模様をなすように形成される。ここで「異なる模様」とは、少なくとも微細凹凸の方向が異なるものを言う。 As described above, the second fine concavo-convex portion 11e is provided at a portion serving as a ring-shaped region E2 excluding the main scale portion 11a1 on the front surface of the substrate 11b. As shown in FIG. 5, the second fine concavo-convex portion 11e forms a radial (Asahikou-like) pattern (hereinafter, also referred to as a second pattern) centered on the rotation center of the pointer 10. The second pattern formed by the second fine uneven portion 11e is a metallic pattern expressing the hairline formed on the metal plate. Further, the second fine concavo-convex portion 11e is formed so as to form a pattern different from the first pattern (concentric circles in the present embodiment) formed by the first fine concavo-convex portion 11d. Here, the "different pattern" means that at least the directions of the fine irregularities are different.

平滑部11fは、前述のように、基板11bの前面のリング状領域E2の中央領域E1との境界部分となる個所及びリング状領域E2の外縁領域E3との境界部分となる個所に設けられる。平滑部11fは、紫外線硬化樹脂層11iのうち微細凹凸が設けられていない部分であり、第一,第二の微細凹凸部11d,11eよりも表面粗さが小さく(平滑な)、光沢のある部分である。本実施形態において平滑部11fは平面である。平滑部11fは、少なくとも第一の微細凹凸部11dと第二の微細凹凸部11eとの境界部分に設けられるものであればよく、中央領域E1のリング状領域E2との境界部分となる個所や中央領域E1とリング状領域E2とを跨ぐ境界部分となる個所に設けられてもよい。さらに、平滑部11fは、平面のほか、微細凹凸部が設けられていない部分であれば、傾斜面や曲面であってもよい。 As described above, the smoothing portion 11f is provided at a portion serving as a boundary portion between the ring-shaped region E2 on the front surface of the substrate 11b and the central region E1 and a portion serving as a boundary portion between the ring-shaped region E2 and the outer edge region E3. The smooth portion 11f is a portion of the ultraviolet curable resin layer 11i that is not provided with fine irregularities, and has a smaller surface roughness (smooth) than the first and second fine irregularities 11d and 11e and is glossy. It is a part. In the present embodiment, the smooth portion 11f is a flat surface. The smooth portion 11f may be provided at least at the boundary portion between the first fine uneven portion 11d and the second fine uneven portion 11e, and may be a portion serving as a boundary portion between the central region E1 and the ring-shaped region E2. It may be provided at a position serving as a boundary portion straddling the central region E1 and the ring-shaped region E2. Further, the smooth portion 11f may be an inclined surface or a curved surface as long as it is a portion not provided with a fine uneven portion in addition to a flat surface.

第一の地色層11gは、任意の第一の色調の遮光性インクを基板11bの裏面に印刷形成してなる。第一の地色層11gの第一の色調は、例えば明度の低い黒やガンメタリックである。第一の地色層11gは、前述のように、基板11bの裏面の中央領域E1及び外縁領域E3となる個所に設けられる。また、第一の地色層11gは、文字部11a4となる個所に対応して第一の開口部11kが形成されている。第一の開口部11kは、表側から見て文字部11a4の意匠をなす形状に設けられており、表示板用光源L3が発した光L31が第一の開口部11kから紫外線硬化樹脂層11iを通過して表示板11の前面側から出射されることで、文字部11a4が透過照明される。なお、第一の開口部11kに透光性の着色層や透明層を形成してもよい。中央領域E1のうち文字部11a4以外の部分(背景部分)は、第一の地色層11gの第一の色調が視認される。 The first ground color layer 11g is formed by printing a light-shielding ink having an arbitrary first color tone on the back surface of the substrate 11b. The first color tone of the first chromosphere 11g is, for example, low-brightness black or gunmetal. As described above, the first chromosphere 11g is provided at locations that are the central region E1 and the outer edge region E3 on the back surface of the substrate 11b. Further, in the first chromosphere 11g, the first opening 11k is formed corresponding to the portion serving as the character portion 11a4. The first opening 11k is provided in a shape forming the design of the character portion 11a4 when viewed from the front side, and the light L31 emitted by the light source L3 for the display board forms the ultraviolet curable resin layer 11i from the first opening 11k. The character portion 11a4 is transmitted and illuminated by passing through and being emitted from the front side of the display board 11. A translucent colored layer or a transparent layer may be formed in the first opening 11k. In the portion (background portion) of the central region E1 other than the character portion 11a4, the first color tone of the first ground color layer 11g is visually recognized.

第二の地色層11hは、第一の地色層11gとは色調の異なる遮光性インクを基板11bの裏面に印刷形成してなる。第二の地色層11hの第二の色調は、第一の地色層11gの第一の色調と明度が異なることが望ましく、例えば明度の高いシルバーである。第二の地色層11hは、前述のように、表示板11の裏面のリング状領域E2となる個所に設けられる。また、第二の地色層11hは、主目盛部11a1,第一の副目盛部11a2,第二の副目盛部11a3及び文字部11a4となる個所に対応して第二の開口部11mが形成されている。第二の開口部11mは、表側から見て主目盛部11a1,第一の副目盛部11a2,第二の副目盛部11a3及び文字部11a4の意匠をなす形状に設けられており、表示板用光源L3が発した光L31が第二の開口部11mから紫外線硬化樹脂層11iを通過して表示板11の前面側から出射されることで、主目盛部11a1,第一の副目盛部11a2,第二の副目盛部11a3及び文字部11a4が透過照明される。なお、第二の開口部11mに透光性の着色層や透明層を形成してもよい。また、第二の開口部11mのうち、主目盛部11a1(凸部11c)に対応する第二の開口部11mは、主目盛部11a1の各目盛の短手方向において凸部11cの幅よりも幅が広く形成されており(図4(b)参照)、透過照明の際に主目盛部11a1の輪郭が光輝して強調されるようになっている。リング状領域E2のうち主目盛部11a1,第一の副目盛部11a2,第二の副目盛部11a3及び文字部11a4以外の主な部分は、第二の地色層11hの第二の色調が視認される。 The second ground color layer 11h is formed by printing a light-shielding ink having a color tone different from that of the first ground color layer 11g on the back surface of the substrate 11b. The second color tone of the second chromosphere 11h is preferably different in lightness from the first color tone of the first chromosphere 11g, for example, silver having high lightness. As described above, the second chromosphere 11h is provided at a location that becomes a ring-shaped region E2 on the back surface of the display plate 11. Further, in the second chromosphere 11h, a second opening 11m is formed corresponding to a portion serving as a main scale portion 11a1, a first sub-scale portion 11a2, a second sub-scale portion 11a3, and a character portion 11a4. Has been done. The second opening 11m is provided in a shape forming the design of the main scale portion 11a1, the first sub-scale portion 11a2, the second sub-scale portion 11a3, and the character portion 11a4 when viewed from the front side, and is used for a display board. The light L31 emitted by the light source L3 passes through the ultraviolet curable resin layer 11i from the second opening 11m and is emitted from the front side of the display plate 11, so that the main scale portion 11a1 and the first subscale portion 11a2 The second sub-scale portion 11a3 and the character portion 11a4 are transmitted and illuminated. A translucent colored layer or a transparent layer may be formed in the second opening 11 m. Further, of the second opening 11m, the second opening 11m corresponding to the main scale portion 11a1 (convex portion 11c) is wider than the width of the convex portion 11c in the lateral direction of each scale of the main scale portion 11a1. It is formed to have a wide width (see FIG. 4B), and the outline of the main scale portion 11a1 is brilliantly emphasized during transmitted illumination. Of the ring-shaped region E2, the main parts other than the main scale portion 11a1, the first sub-scale portion 11a2, the second sub-scale portion 11a3 and the character portion 11a4 have the second color tone of the second ground color layer 11h. It is visually recognized.

かかる表示板11の構造によれば、表示板11の表示領域のうち、中央領域E1においては基板11bの前面に第一の微細凹凸部11dが形成され、背面に第一の地色層11gが形成される。一方で、リング状領域E2においては基板11bの前面に第二の微細凹凸部11eが形成され、背面に第二の地色層11hが形成される。したがって、中央領域E1とリング状領域E2とは、互いに色調が異なり、かつ、前面に施される微細凹凸の模様が異なる。これにより、色調の変化に加えて、前面に照射される外光の反射の具合(表面の光り方)も異なるため、背景部分となる中央領域E1とリング状意匠をなすリング状領域E2とで、質感の変化を大きくすることができ、リング状意匠の立体感を高めることができる。
また、リング状領域E2のうち、第一の微細凹凸部11dと第二の微細凹凸部11eとの間を含む平滑部11fが設けられた境界部分においては、第一,第二の微細凹凸部11d,11eのいずれとも外光の反射の具合が異なり、平滑部11fでの外光の反射によってリング状領域E2にリングの角を面取り(C面)したような質感を得ることができる。これにより、リング状意匠の立体感をさらに高めることができる。また、平滑部11fによって第一,第二の地色層11g,11hの印刷ズレが認識されにくくなり、歩留まりが向上する。
また、リング状領域E2において、基板11bの前面には主目盛部11a1の意匠をなす凸部11cが設けられている。これにより、リング状領域E2の前面に実際に立体的な変化が生じるためリング状意匠の立体感をさらに高めることができる。
According to the structure of the display board 11, in the central area E1 of the display area of the display board 11, the first fine uneven portion 11d is formed on the front surface of the substrate 11b, and the first ground color layer 11g is formed on the back surface. It is formed. On the other hand, in the ring-shaped region E2, the second fine uneven portion 11e is formed on the front surface of the substrate 11b, and the second chromosphere 11h is formed on the back surface. Therefore, the central region E1 and the ring-shaped region E2 have different color tones and different patterns of fine irregularities applied to the front surface. As a result, in addition to the change in color tone, the degree of reflection of external light (the way the surface shines) that irradiates the front surface also differs, so the central region E1 that serves as the background and the ring-shaped region E2 that forms the ring-shaped design , The change in texture can be increased, and the three-dimensional effect of the ring-shaped design can be enhanced.
Further, in the ring-shaped region E2, in the boundary portion provided with the smooth portion 11f including between the first fine uneven portion 11d and the second fine uneven portion 11e, the first and second fine uneven portions are provided. The degree of reflection of external light is different between 11d and 11e, and it is possible to obtain a texture as if the corner of the ring is chamfered (C surface) in the ring-shaped region E2 by the reflection of external light at the smooth portion 11f. As a result, the three-dimensional effect of the ring-shaped design can be further enhanced. Further, the smooth portion 11f makes it difficult to recognize the printing deviation of the first and second ground color layers 11g and 11h, and the yield is improved.
Further, in the ring-shaped region E2, a convex portion 11c forming the design of the main scale portion 11a1 is provided on the front surface of the substrate 11b. As a result, the front surface of the ring-shaped region E2 is actually changed in three dimensions, so that the three-dimensional appearance of the ring-shaped design can be further enhanced.

図6は、図1(a)のH−H断面図である。リング状部材8は、前部8aを含む所定の樹脂からなる基部8bの表面(ユーザから見える外側の面)に、第三の地色層8cとして表示板11の第ニの地色層11hと色調が同様である遮光性インクを印刷形成してなる。ここで、第三の地色層8cの第三の色調は、第ニの地色層11hの第ニの色調と同様に例えばシルバーである。また、図5及び図6に示すように、リング状部材8の前部8aには、表示板11の第ニの微細凹凸部11eによる第ニの模様と同様の模様をなす第三の微細凹凸部8dが設けられる。第三の微細凹凸部8dは、前述の第ニの微細凹凸部11eと同様に、例えば紫外線硬化樹脂層8eで構成され、型成形で形成される。その他、インクによる印刷成形や蒸着などによって形成してもよい。第三の微細凹凸部8dは、第ニの微細凹凸部11eがなす第ニの模様と同様の模様を成すように、指針10の回転中心を中心とした放射状(旭光状)の模様をなす(以下、第三の模様とも言う)。ここで、「同様の模様」とは、少なくとも微細凹凸の方向が概ね同じ(完全に同じ場合を含む)ものを言う。本実施形態の例においては、放射状の模様であれば、第ニの模様と同様の模様であると言える。 FIG. 6 is a sectional view taken along the line HH of FIG. 1A. The ring-shaped member 8 is formed on the surface (outer surface visible to the user) of the base portion 8b made of a predetermined resin including the front portion 8a as the third ground color layer 8c with the second ground color layer 11h of the display plate 11. A light-shielding ink having the same color tone is printed and formed. Here, the third color tone of the third chromosphere 8c is, for example, silver, like the second color tone of the second chromosphere 11h. Further, as shown in FIGS. 5 and 6, the front portion 8a of the ring-shaped member 8 has a third fine unevenness having a pattern similar to the second pattern by the second fine uneven portion 11e of the display plate 11. Part 8d is provided. The third fine concavo-convex portion 8d is composed of, for example, an ultraviolet curable resin layer 8e, and is formed by molding, like the second fine concavo-convex portion 11e described above. In addition, it may be formed by printing molding with ink, vapor deposition, or the like. The third fine concavo-convex portion 8d forms a radial (Asahi light-like) pattern centered on the rotation center of the pointer 10 so as to form a pattern similar to the second pattern formed by the second fine concavo-convex portion 11e. Hereinafter referred to as the third pattern). Here, the "similar pattern" means that at least the directions of the fine irregularities are substantially the same (including the case where they are completely the same). In the example of the present embodiment, if it is a radial pattern, it can be said that it is the same pattern as the second pattern.

かかるリング状部材8の前部8aによれば、表示板11の外側に設けられるリング状領域E2と同様の色調及び模様を有することから、表示板11(のリング状領域E2)とリング状部材8との一体感が増し、計器100全体の見栄えの低下を抑制することができる。 According to the front portion 8a of the ring-shaped member 8, the display plate 11 (ring-shaped region E2) and the ring-shaped member have the same color tone and pattern as the ring-shaped region E2 provided on the outside of the display plate 11. The sense of unity with 8 is increased, and the deterioration of the appearance of the instrument 100 as a whole can be suppressed.

以上の作用及び効果は、下記の構成によって得ることができる。 The above actions and effects can be obtained by the following configuration.

本実施形態の計器100は、計測量を表示する表示部1と、
表示部1の前面側に位置し、表示部1を透かして視認させる透光板2と、
透光板2の前面側端部を覆う前部8aを有するリング状部材8と、
透光板2の表示部1側の面に設けられ、可視光の波長以下のピッチで配列された複数の錐状突起31aを有する反射防止部3と、を備え、
表示部1は、透光性の基板11bの前面に所定の模様をなす微細凹凸部(第二の微細凹凸部11e)が形成され、基板11bの背面に所定の色調である地色層(第二の地色層11h)が形成されてなる表示板11を有し、
リング状部材8は、前部8aに前記地色層と同様の色調である他の地色層(第三の地色層8c)、及び、前記微細凹凸部と同様の模様をなす他の微細凹凸部(第三の微細凹凸部8d)が形成されてなる。
The instrument 100 of the present embodiment includes a display unit 1 that displays a measured amount and a display unit 1.
A translucent plate 2 located on the front side of the display unit 1 and allowing the display unit 1 to be visually recognized.
A ring-shaped member 8 having a front portion 8a covering the front side end portion of the light transmitting plate 2 and
An antireflection unit 3 provided on the surface of the light transmissive plate 2 on the display unit 1 side and having a plurality of conical protrusions 31a arranged at a pitch equal to or lower than the wavelength of visible light is provided.
In the display unit 1, a fine uneven portion (second fine uneven portion 11e) forming a predetermined pattern is formed on the front surface of the translucent substrate 11b, and a ground color layer (third) having a predetermined color tone is formed on the back surface of the substrate 11b. It has a display board 11 on which a second chromosphere 11h) is formed.
The ring-shaped member 8 has another ground color layer (third ground color layer 8c) having the same color tone as the ground color layer on the front portion 8a, and other fine particles having the same pattern as the fine uneven portion. An uneven portion (third fine uneven portion 8d) is formed.

また、表示板11は、基板11bの前面に前記模様をなす前記微細凹凸部が形成され、基板11bの背面に前記色調である前記地色層が形成されてなるリング状領域E2を備えてなる。 Further, the display board 11 is provided with a ring-shaped region E2 in which the fine uneven portion forming the pattern is formed on the front surface of the substrate 11b and the ground color layer having the color tone is formed on the back surface of the substrate 11b. ..

なお、本発明は以上の実施形態及び図面によって限定されるものではない。本発明の要旨を変更しない範囲で、適宜、変更(構成要素の削除も含む)を加えることが可能である。 The present invention is not limited to the above embodiments and drawings. Changes (including deletion of components) can be made as appropriate without changing the gist of the present invention.

(変形例)
本実施形態では、リング状部材8の前部8aに、表示板11の第二の地色層11hと同様の色調である第三の地色層8c(他の地色層)と、表示板11の第二の微細凹凸部11eと同様の模様をなす第三の微細凹凸部8d(他の微細凹凸部)と、の双方を設ける構成であったが、本発明の他の地色層及び他の微細凹凸部は、いずれか一方がリング状部材の前部に形成されてもよい。また、リング状部材8は、樹脂からなるものであったが、本発明のリング状部材は金属からなるものであってもよい。この場合、研磨等の表面加工により基部に直接他の微細凹凸部を形成してもよく、基部自身が他の地色層を兼ねてもよい。
(Modification example)
In the present embodiment, the front portion 8a of the ring-shaped member 8 is provided with a third ground color layer 8c (another ground color layer) having the same color tone as the second ground color layer 11h of the display plate 11 and a display plate. Although it was configured to provide both a third fine uneven portion 8d (another fine uneven portion) having the same pattern as the second fine uneven portion 11e of 11, the other ground color layer of the present invention and the other ground color layer of the present invention and One of the other fine uneven portions may be formed on the front portion of the ring-shaped member. Further, although the ring-shaped member 8 is made of resin, the ring-shaped member of the present invention may be made of metal. In this case, another fine uneven portion may be formed directly on the base portion by surface processing such as polishing, or the base portion itself may also serve as another ground color layer.

以上では、表示部1が指針式表示部で構成される例を説明したが、透光板2を透かして視認される表示部1は、表示板を備えるものであれば、計測量を示す画像を表示する画像表示部であってもよい。画像表示部は、例えば液晶ディスプレイ(LCD:Liquid Crystal Display)や、有機EL(Electro-Luminescence)ディスプレイなどを備え、表示板はこれらディスプレイの画面を囲むように配置される。なお、画像表示部による計測量の表示は、計測値を数字や文字で具体的に表示する態様だけでなく、バーグラフや指針画像を表示することで、ユーザに計測量を対比判読させる態様を含む。 In the above, an example in which the display unit 1 is composed of a pointer type display unit has been described. However, if the display unit 1 that is visually recognized through the translucent plate 2 is provided with a display plate, an image showing a measured amount is shown. It may be an image display unit that displays. The image display unit includes, for example, a liquid crystal display (LCD) or an organic EL (Electro-Luminescence) display, and the display board is arranged so as to surround the screen of these displays. In addition, the display of the measured amount by the image display unit is not only a mode in which the measured value is concretely displayed by numbers and characters, but also a mode in which the user is made to read the measured amount in comparison by displaying a bar graph or a pointer image. Including.

また、透光板2や反射防止部3の形状は、円状に限られない。楕円形、矩形、多角形状などであってもよい。これに伴い、本発明のリング状部材の形状も、同様に円状には限られない。 Further, the shape of the light transmitting plate 2 and the antireflection portion 3 is not limited to a circular shape. It may be oval, rectangular, polygonal or the like. Along with this, the shape of the ring-shaped member of the present invention is also not limited to the circular shape.

計器100が搭載される乗り物は、車両(自動四輪車、自動二輪車などを含む)に限定されるものではない。農耕機械、船舶、航空機、スノーモービル、ジェットスキーなどの他の乗り物に搭載されてもよい。また、計器100は、例えば屋外設置の気圧計などであってもよく、乗り物に搭載されてなくともよい。 The vehicle on which the instrument 100 is mounted is not limited to vehicles (including motorcycles, motorcycles, etc.). It may be mounted on other vehicles such as agricultural machinery, ships, aircraft, snowmobiles and jet skis. Further, the instrument 100 may be, for example, a barometer installed outdoors, or may not be mounted on a vehicle.

以上の説明では、本発明の理解を容易にするために、公知の技術的事項の説明を適宜省略した。 In the above description, in order to facilitate the understanding of the present invention, the description of known technical matters has been omitted as appropriate.

本発明は、計器に好適であり、詳しくは、微細な錐状突起を有する反射防止部を備える計器に好適である。 The present invention is suitable for an instrument, and more specifically, for an instrument provided with an antireflection portion having fine cone-shaped protrusions.

100…計器
1…表示部、11…表示板、11b…基板、11e…第二の微細凹凸部、11h…第二の地色層
2…透光板、2a…端部
3…反射防止部、30…基材、31…凹凸層、31a…錐状突起
4…ケース
5…見返し部材
6…パッキン
7…ベゼル
8…リング状部材、8a…前部、8c…第三の地色層(他の地色層)、8d…第三の微細凹凸部(他の微細凹凸部)
9…挟持部
100 ... Instrument 1 ... Display unit, 11 ... Display plate, 11b ... Substrate, 11e ... Second fine uneven portion, 11h ... Second chromosphere 2 ... Translucent plate, 2a ... End 3 ... Antireflection part, 30 ... Substrate, 31 ... Concavo-convex layer, 31a ... Conical protrusion 4 ... Case 5 ... Back member 6 ... Packing 7 ... Bezel 8 ... Ring-shaped member, 8a ... Front, 8c ... Third chromosphere (other Ground color layer), 8d ... Third fine uneven part (other fine uneven part)
9 ... Holding part

Claims (2)

計測量を表示する表示部と、
前記表示部の前面側に位置し、前記表示部を透かして視認させる透光板と、
前記透光板の前面側端部を覆う前部を有するリング状部材と、
前記透光板の前記表示部側の面に設けられ、可視光の波長以下のピッチで配列された複数の錐状突起を有する反射防止部と、を備え、
前記表示部は、透光性の基板の前面に所定の模様をなす微細凹凸部が形成され、前記基板の背面に所定の色調である地色層が形成されてなる表示板を有し、
前記リング状部材は、前記前部に前記地色層と同様の色調である他の地色層、及び/あるいは、前記微細凹凸部と同様の模様をなす他の微細凹凸部が形成されてなる、
ことを特徴とする計器。
A display unit that displays the measured amount and
A translucent plate located on the front side of the display unit and allowing the display unit to be visually recognized.
A ring-shaped member having a front portion that covers the front end portion of the light transmissive plate, and
An antireflection portion provided on the surface of the translucent plate on the display portion side and having a plurality of cone-shaped protrusions arranged at a pitch equal to or lower than the wavelength of visible light.
The display unit has a display plate in which fine uneven portions having a predetermined pattern are formed on the front surface of a translucent substrate, and a ground color layer having a predetermined color tone is formed on the back surface of the substrate.
The ring-shaped member is formed with another ground color layer having the same color tone as the ground color layer and / or other fine uneven parts having the same pattern as the fine uneven parts on the front portion. ,
An instrument that is characterized by that.
前記表示板は、前記基板の前面に前記模様をなす前記微細凹凸部が形成され、前記基板の背面に前記色調である前記地色層が形成されてなるリング状領域を備えてなる、
ことを特徴とする請求項1に記載の計器。
The display board includes a ring-shaped region in which the fine uneven portion forming the pattern is formed on the front surface of the substrate and the ground color layer having the color tone is formed on the back surface of the substrate.
The instrument according to claim 1, wherein the instrument is characterized by the above.
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