JP2022023073A - Pilot lamp - Google Patents

Pilot lamp Download PDF

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JP2022023073A
JP2022023073A JP2021158616A JP2021158616A JP2022023073A JP 2022023073 A JP2022023073 A JP 2022023073A JP 2021158616 A JP2021158616 A JP 2021158616A JP 2021158616 A JP2021158616 A JP 2021158616A JP 2022023073 A JP2022023073 A JP 2022023073A
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light
peripheral wall
wall portion
light emitting
guide plate
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JP7284792B2 (en
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哲也 堀越
Tetsuya Horikoshi
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Nohmi Bosai Ltd
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Nohmi Bosai Ltd
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Priority claimed from JP2017139591A external-priority patent/JP6953212B2/en
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Abstract

PROBLEM TO BE SOLVED: To provide a pilot lamp having an annular light-emitting display part, not needing to increase the number of light-emitting sources, and further excellent in designability.
SOLUTION: A pilot lamp 1 comprises a transmitter storage part 13, and a light-emitting display part 11 formed so as to surround the periphery of the transmitter storage part 13 and configured to transmit light emitted from a light-emitting source to emit light. The pilot lamp has a light guide plate 15 on whose back face side a reflection surface 15a is formed, and which is configured to diffuse light made incident from a side surface to make a surface bright as a light-emitting surface. The light-emitting display part 11 is configured to emit light by light emitted from the light guide plate 15.
SELECTED DRAWING: Figure 1
COPYRIGHT: (C)2022,JPO&INPIT

Description

本発明は、例えば消火栓箱、機器収納箱等に取り付けられる発信機等の防災機器の位置を表示する表示灯に関する。 The present invention relates to an indicator lamp that indicates the position of a disaster prevention device such as a transmitter attached to a fire hydrant box, a device storage box, or the like.

表示灯の一例として、例えば特許文献１（意匠登録第１４６０５５８号公報）には、「中央部に発信機を取り付けるための略矩形状の開口を有し、赤色に着色された半透明部材から成る環状の表示灯本体と、表示灯本体に着脱自在に螺着され、表示灯本体を消火栓格納箱等へ取り付けるための環状の取り付け部材と、表示灯本体と取り付け部材との間に挟持固定され、発光ダイオード（ＬＥＤランプ）を等角度ごとに取り付けた環状の基板とから構成されており、表示灯本体の環状空間に配置された発光ダイオードの光を正面及び周囲に環状に放射するようにしたもの」（特許文献１における意匠に係る物品の説明）が開示されている。 As an example of the indicator lamp, for example, Patent Document 1 (Design Registration No. 1460558) states that "it has a substantially rectangular opening for attaching a transmitter in the central portion and is composed of a translucent member colored in red. The ring-shaped indicator light body and the ring-shaped mounting member that is detachably screwed to the indicator light body and for mounting the indicator light body to the fire extinguisher storage box, etc., are sandwiched and fixed between the indicator light body and the mounting member. It is composed of an annular substrate on which light emitting diodes (LED lamps) are attached at equal angles, and the light of the light emitting diodes arranged in the annular space of the indicator lamp body is radiated in an annular shape to the front and the periphery. (Explanation of the article relating to the design in Patent Document 1) is disclosed.

上記の表示灯においては、環状に発光させることによって視認性の向上を図れ、また、その中央部に発信機を取り付けられるため、表示灯と発信機を別々の位置に設置していたものに比較して設置に必要な面積を小さくすることができるとしている。 In the above indicator light, visibility can be improved by making it emit light in a ring shape, and since a transmitter can be attached to the center of the indicator light, it is compared with the one in which the indicator light and the transmitter are installed at different positions. It is said that the area required for installation can be reduced.

意匠登録第１４６０５５８号公報Design Registration No. 1460558 Gazette

特許文献１に開示された表示灯は、発光ダイオードを等間隔で多数配置して環状の発光表示部を光らせることで視認性を向上させている。
しかし、環状の全周を光らせるために多数の発光ダイオードが必要であり、それ故に基板も環状の全周に亘るものが必要となっている。
また、点在する発光ダイオードによって発光表示部を光らせるようにしたので、発光ダイオードのある箇所に光が点在するように見え、意匠上好ましいとは言えない。 In the indicator lamp disclosed in Patent Document 1, a large number of light emitting diodes are arranged at equal intervals to illuminate an annular light emitting display unit to improve visibility.
However, a large number of light emitting diodes are required to illuminate the entire circumference of the ring, and therefore, a substrate that covers the entire circumference of the ring is also required.
Further, since the light emitting display portion is illuminated by the scattered light emitting diodes, it seems that the light is scattered in a certain place of the light emitting diode, which is not preferable in terms of design.

本発明はかかる問題点を解決するためになされたものであり、発光表示部が環状のものにおいて、発光源の数を増すことなく、意匠性にも優れた表示灯を得ることを目的としている。 The present invention has been made to solve such a problem, and an object of the present invention is to obtain an indicator lamp having an excellent design without increasing the number of light emitting sources in a ring-shaped light emitting display unit. ..

（１）本発明に係る表示灯は、発信機収納部と、該発信機収納部の周囲を囲むように形成されて発光源が発光する光を透光させて光る発光表示部とを備えた表示灯であって、
背面側に反射面が形成され、側面から入射した光を拡散させて表面側を発光面として光らせる導光板を有し、前記発光表示部は前記導光板から出射する光によって発光するように構成されていることを特徴とするものである。 (1) The indicator lamp according to the present invention includes a transmitter storage unit and a light emission display unit formed so as to surround the periphery of the transmitter storage unit and transmitting light emitted by a light emitting source. It ’s an indicator light,
A reflective surface is formed on the back surface side, and a light guide plate that diffuses light incident from the side surface to illuminate the front surface side as a light emitting surface is provided, and the light emitting display unit is configured to emit light by light emitted from the light guide plate. It is characterized by being.

（２）また、上記（１）に記載のものにおいて、前記導光板はリング状の筒状体からなり、該筒状体の周方向の一部に切断部又は高さ方向に凹む凹部が形成され、前記切断部又は凹部によって前記発光源が筒状体の周方向に向けて光を入射させる前記側面が形成されていることを特徴とするものである。 (2) Further, in the one described in (1) above, the light guide plate is made of a ring-shaped tubular body, and a cut portion or a recess recessed in the height direction is formed in a part of the tubular body in the circumferential direction. The cut portion or the concave portion forms the side surface of the light emitting source to which light is incident toward the circumferential direction of the cylindrical body.

本発明においては、発光表示部を導光板によって光らせるようにしたので、発光源の数を少なくでき、それ故に基板を小型化でき、かつ発光源が点在するような光り方でなく面状に光らせることができるので、意匠性にも優れる。 In the present invention, since the light emitting display unit is illuminated by the light guide plate, the number of light emitting sources can be reduced, and therefore the substrate can be miniaturized, and the light emitting sources can be lit in a planar manner instead of being scattered. Since it can be made to shine, it is also excellent in design.

本発明の一実施の形態に係る表示灯の斜視図である。It is a perspective view of the indicator lamp which concerns on one Embodiment of this invention. 図１に示した表示灯の正面側から見た分解斜視図である。It is an exploded perspective view seen from the front side of the indicator lamp shown in FIG. 図１に示した表示灯の背面側から見た分解斜視図である。It is an exploded perspective view seen from the back side of the indicator lamp shown in FIG. 図１に示した表示灯の断面図である。It is sectional drawing of the indicator lamp shown in FIG. 本発明の他の実施の形態に係る表示灯の分解斜視図である。It is an exploded perspective view of the indicator lamp which concerns on other embodiment of this invention. 図５に示した表示灯の断面図である。It is sectional drawing of the indicator lamp shown in FIG.

［実施の形態１］
本実施の形態に係る表示灯１は、図１～図４に示すように、略円筒体からなる外周壁部３と、外周壁部３の前端側の外周面から外方に張り出すフランジ状の取付部５と、外周壁部３の内周側に外周壁部３と所定の間隔を離して形成された内周壁部７と、内周壁部７と外周壁部３との間にリング状に形成され発光源としてのＬＥＤ９が発光する光を透光させて光る発光表示部１１と、内周壁部７の内側に形成された発信機収納部１３とを有している。 [Embodiment 1]
As shown in FIGS. 1 to 4, the indicator lamp 1 according to the present embodiment has a flange-shaped outer peripheral wall portion 3 made of a substantially cylindrical body and a flange shape protruding outward from the outer peripheral surface on the front end side of the outer peripheral wall portion 3. The mounting portion 5 and the inner peripheral wall portion 7 formed on the inner peripheral side of the outer peripheral wall portion 3 at a predetermined distance from the outer peripheral wall portion 3, and a ring shape between the inner peripheral wall portion 7 and the outer peripheral wall portion 3. It has a light emitting display unit 11 formed in the above and shining by transmitting light emitted by the LED 9 as a light emitting source, and a transmitter storage unit 13 formed inside the inner peripheral wall portion 7.

なお、外周壁部３、取付部５、内周壁部７及び発信機収納部１３は表示灯１の本体部を構成し、この本体部は樹脂の一体成形により成形されたものである。また、発光表示部１１は後述するようにリング状の筒状体からなる導光板１５の発光面１５ｂによって構成されるが、導光板１５は本体部とは別体のものである。このような場合、発光表示部１１を形成する導光板１５を、本体部を成形する金型に予めインサートして射出成形するいわゆるインサート成形によって形成することができる。
以下、各構成を詳細に説明する。 The outer peripheral wall portion 3, the mounting portion 5, the inner peripheral wall portion 7, and the transmitter storage portion 13 constitute the main body portion of the indicator lamp 1, and this main body portion is formed by integral molding of resin. Further, the light emitting display unit 11 is composed of a light emitting surface 15b of a light guide plate 15 made of a ring-shaped tubular body as described later, but the light guide plate 15 is a separate body from the main body portion. In such a case, the light guide plate 15 forming the light emitting display portion 11 can be formed by so-called insert molding in which the light guide plate 15 is preliminarily inserted into a mold for molding the main body portion and injection molded.
Hereinafter, each configuration will be described in detail.

＜外周壁部＞
外周壁部３は、本体部を構成する樹脂製の部材によって略短円筒状に形成されている。 <Outer wall>
The outer peripheral wall portion 3 is formed in a substantially short cylindrical shape by a resin member constituting the main body portion.

＜取付部＞
取付部５は、表示灯１を取付面に取り付けるためのものであり、外周壁部３の前端側の外周面から外方に張り出す略正方形のフランジ状に形成されている。
取付部５の四隅には、図１および図２に示すように、表示灯１を取付面に取り付けるためのネジ孔５ａが設けられている。
取付部５には、発光表示部１１の外周を縁取るリング状の立片部５ｂが設けられている。立片部５ｂは、表示灯１が取付面に取り付けられる際に、取付面に設けられた開口部の縁に内側から当接して表示灯１の位置決め（位置合せ）をする機能を有している。 <Mounting part>
The mounting portion 5 is for mounting the indicator lamp 1 on the mounting surface, and is formed in a substantially square flange shape protruding outward from the outer peripheral surface on the front end side of the outer peripheral wall portion 3.
As shown in FIGS. 1 and 2, screw holes 5a for mounting the indicator lamp 1 on the mounting surface are provided at the four corners of the mounting portion 5.
The mounting portion 5 is provided with a ring-shaped standing piece portion 5b that borders the outer periphery of the light emitting display portion 11. When the indicator lamp 1 is mounted on the mounting surface, the standing piece portion 5b has a function of contacting the edge of the opening provided on the mounting surface from the inside to position (align) the indicator lamp 1. There is.

＜内周壁部＞
内周壁部７は、外周壁部３の内周側に外周壁部３と所定の間隔を離して形成された円形の壁部である。このような内周壁部７があることで、外周壁部３との間に円筒状の隙間が形成され、この隙間に発光表示部１１を形成するリング状の筒状体からなる導光板１５を挿入できるようになっている。 <Inner wall>
The inner peripheral wall portion 7 is a circular wall portion formed on the inner peripheral side of the outer peripheral wall portion 3 at a predetermined distance from the outer peripheral wall portion 3. With such an inner peripheral wall portion 7, a cylindrical gap is formed between the inner peripheral wall portion 7 and the outer peripheral wall portion 3, and the light guide plate 15 made of a ring-shaped tubular body forming the light emitting display portion 11 is formed in this gap. It can be inserted.

＜発光表示部＞
発光表示部１１は、後述する発信機収納部１３の周囲を囲むように形成されて発光源（ＬＥＤ９）が発光する光を透光させて光るものである。発光表示部１１は、背面側に反射ドット１７を形成した反射面１５ａが形成され、側面から入射した光（円周方向に向かって入射した光）を拡散させて発光面１５ｂ（表面）を光らせるリング状の導光板１５の発光面１５ｂによって形成されている。
一般に導光板とは、アクリル板の側面（板の厚み部分）から入射した光を拡散させ、アクリル板の表面に均一な光を出す薄いパネルからなるものである。
何らの加工もしないアクリル板の側面から光を入射させると、光はアクリル板の背面と表面で全反射して他方の端面から出光するが、導光板は、アクリル板の背面に特殊な反射面（反射ドット）を形成することで、光源からアクリル製の導光板内に導かれた光をアクリル板の全反射を用いてアクリル板表面に導き、反射ドットに当たった光がその進路を変え、全反射角よりも小さい角度になった光がアクリル板表面から出てくることを利用して、導光板表面が光るようにしたものである。 <Emission display>
The light emitting display unit 11 is formed so as to surround the periphery of the transmitter storage unit 13, which will be described later, and transmits the light emitted by the light emitting source (LED 9) to shine. In the light emitting display unit 11, a reflecting surface 15a having reflective dots 17 formed on the back surface side is formed, and light incident from the side surface (light incident in the circumferential direction) is diffused to illuminate the light emitting surface 15b (front surface). It is formed by a light emitting surface 15b of a ring-shaped light guide plate 15.
Generally, the light guide plate is composed of a thin panel that diffuses light incident from the side surface (thick portion of the plate) of the acrylic plate and emits uniform light to the surface of the acrylic plate.
When light is incident from the side surface of the acrylic plate without any processing, the light is totally reflected on the back surface and the surface of the acrylic plate and emitted from the other end surface, but the light guide plate has a special reflective surface on the back surface of the acrylic plate. By forming (reflection dots), the light guided from the light source into the acrylic light guide plate is guided to the surface of the acrylic plate using the total reflection of the acrylic plate, and the light hitting the reflection dots changes its course. The surface of the light guide plate is made to shine by utilizing the fact that light having an angle smaller than the total reflection angle is emitted from the surface of the acrylic plate.

上記のように一般的な導光板は、モニタ等の表示部に用いられる薄い板状のものであるが、本発明の導光板１５はリング状の筒状体からなり、図２、図３に示すように、該筒状体の周方向の一部に高さ方向に凹む凹部１９が形成され、凹部１９を形成することで凹部１９の両側壁２１が光を入射する側面として機能するようになっている。そして、筒状体の高さ方向の一方の端面が、光が出て発光する発光面１５ｂとなり（図中グレー色を付した面）、他方の端面が反射面１５ａ（図中ドットを付した面）となっている。 As described above, the general light guide plate is a thin plate used for a display unit such as a monitor, but the light guide plate 15 of the present invention is formed of a ring-shaped tubular body, and FIGS. 2 and 3 show. As shown, a recess 19 recessed in the height direction is formed in a part of the tubular body in the circumferential direction, and by forming the recess 19, both side walls 21 of the recess 19 function as a side surface on which light is incident. It has become. Then, one end surface of the tubular body in the height direction becomes a light emitting surface 15b that emits light and emits light (the surface colored in gray in the figure), and the other end surface is a reflecting surface 15a (dots in the figure are attached). Face).

導光板１５に入射した光は内部における表面と背面で反射を繰り返して導光板１５全体に広がる。この際に反射ドット１７があると、そこで光が散乱され、導光板１５の発光面１５ｂから外に光が出て行く。このような導光板１５は、反射ドット１７の面積や密度等を適宜変更することで表面からの光の出方を簡単に変化させることができる。例えば、光の入射位置に近い反射ドット１７の面積を小さく（または密度を疎にする）、光の入射位置から遠く離れるほど反射ドット１７の面積を大きくする（または密度を密にする）ことにより導光板１５全体が均一に光るようにできる。 The light incident on the light guide plate 15 repeatedly reflects on the front surface and the back surface inside, and spreads over the entire light guide plate 15. At this time, if there is a reflection dot 17, the light is scattered there, and the light goes out from the light emitting surface 15b of the light guide plate 15. Such a light guide plate 15 can easily change the way light is emitted from the surface by appropriately changing the area, density, and the like of the reflection dots 17. For example, by reducing the area of the reflective dots 17 near the incident position of light (or making the density sparse) and increasing the area of the reflective dots 17 (or making the density denser) as the distance from the incident position of light increases. The entire light guide plate 15 can be made to shine uniformly.

反射面１５ａの形成は、例えばレーザー波でドットを形成する方法、ドットパターンをシルク印刷によって形成する方法、プロッタで溝を削る方法、型材にアクリルを流し込んで所定のドットパターンを形成する方法など、一般的な導光板の製造に用いられる方法を適用できる。
なお、発光表示部１１は常に均一に発光することが好ましいとは限らず、例えば表示灯１を設置した状態で左右や上下等、任意の場所を他よりも明るく光らせることで視認性を高めることができる場合もある。このように、発光表示部１１の光り方に変化を持たせるような場合には、反射面１５ａのドットパターンを変えるだけで容易に対応することができる。 The reflective surface 15a can be formed by, for example, a method of forming dots by a laser wave, a method of forming a dot pattern by silk printing, a method of cutting a groove with a plotter, a method of pouring acrylic into a mold material to form a predetermined dot pattern, and the like. The method used for manufacturing a general light guide plate can be applied.
It is not always preferable that the light emitting display unit 11 always emits light uniformly. For example, in the state where the display light 1 is installed, the visibility is improved by shining an arbitrary place such as left and right, up and down, etc. brighter than others. In some cases. In this way, when the light emission display unit 11 is to be changed in the way it shines, it can be easily dealt with simply by changing the dot pattern of the reflective surface 15a.

＜発光源＞
発光源は、基板２３に搭載されたＬＥＤ９からなり、図３、４に示すように、導光板１５の凹部１９内にＬＥＤ９が収納されるように基板２３を発信機収納部１３の背面側にネジ固定する。
本実施の形態では単一の発光源で足りるため、基板２３が小型化でき、これによって表示灯１全体の形状を小型化できる。
なお、本実施の形態では導光板１５の発光面１５ｂが発光表示部１１となるので、ＬＥＤ９としては赤色のものを用いるのが好ましい。 <Light emitting source>
The light emitting source consists of an LED 9 mounted on the substrate 23, and as shown in FIGS. 3 and 4, the substrate 23 is placed on the back side of the transmitter accommodating portion 13 so that the LED 9 is accommodated in the recess 19 of the light guide plate 15. Fix with screws.
In the present embodiment, since a single light emitting source is sufficient, the substrate 23 can be miniaturized, whereby the shape of the entire indicator lamp 1 can be miniaturized.
In this embodiment, since the light emitting surface 15b of the light guide plate 15 serves as the light emitting display unit 11, it is preferable to use a red LED 9.

＜発信機収納部＞
発信機収納部１３は、図１及び図３に示すように、内周壁の内側に形成されており、発信機３０を取り付けるためのネジ孔２５が設けられた平坦面２７と、平坦面２７の中央部に発信機３０の本体を挿入するための矩形の開口部２９を有している。 <Transmitter storage unit>
As shown in FIGS. 1 and 3, the transmitter accommodating portion 13 is formed inside the inner peripheral wall, and has a flat surface 27 provided with screw holes 25 for mounting the transmitter 30 and a flat surface 27. A rectangular opening 29 for inserting the main body of the transmitter 30 is provided in the central portion.

発信機収納部１３に収納される発信機３０は、図２、図３に示す通り、押下されると火災信号を発信する押ボタン３１と、円板状からなる押ボタン格納部３３と、押ボタン格納部３３の背面側に形成された発信機本体部３５とを有している。 As shown in FIGS. 2 and 3, the transmitter 30 housed in the transmitter storage unit 13 has a push button 31 that emits a fire signal when pressed, a push button storage unit 33 having a disk shape, and a push button. It has a transmitter main body 35 formed on the back side of the button storage 33.

押ボタン格納部３３には、押ボタン格納部３３の内部に設けられて送受話器が接続される電話ジャック（図示なし）を開閉自在に覆う電話ジャック用窓扉３７が設けられている。
発信機本体部３５は、箱状からなり内部に押ボタン３１に連動するスイッチ等（図示なし）を格納している。 The push button storage unit 33 is provided with a telephone jack window door 37 that is provided inside the push button storage unit 33 and covers a telephone jack (not shown) to which a handset is connected so as to be openable and closable.
The transmitter main body 35 is box-shaped and houses a switch or the like (not shown) linked to the push button 31 inside.

図１、４に示すように、発信機３０は表示灯１の発信機収納部１３に収容されると、発光表示部１１に囲まれるように、かつ、発光表示部１１の内周縁と略面一になるように配置される。この状態で、表示灯１の発光表示部１１が光ることで、発信機３０の位置が表示される。 As shown in FIGS. 1 and 4, when the transmitter 30 is housed in the transmitter storage unit 13 of the indicator light 1, it is surrounded by the light emitting display unit 11 and is substantially on the inner peripheral edge of the light emitting display unit 11. Arranged to be one. In this state, the light emitting display unit 11 of the indicator lamp 1 illuminates, so that the position of the transmitter 30 is displayed.

上記のように構成された本実施の形態においては、発光表示部１１を導光板１５の発光面１５ｂによって構成するようにしたので、単一の発光源によって発光面１５ｂの全面を均等にあるいは所望の光らせ方で光らせることができ、従来例のように複数の発光源の光が点在するようなことがないので意匠性に優れる。
また、導光板１５を利用することで、発光面１５ｂの光らせ方を反射面１５ａの形成の仕方によっていかようにでも変えることができる。 In the present embodiment configured as described above, since the light emitting display unit 11 is configured by the light emitting surface 15b of the light guide plate 15, the entire surface of the light emitting surface 15b is uniformly or desired by a single light emitting source. It can be lit by the method of shining, and unlike the conventional example, the light from multiple light emitting sources is not scattered, so it is excellent in design.
Further, by using the light guide plate 15, the way of shining the light emitting surface 15b can be changed in any way depending on the way of forming the reflecting surface 15a.

なお、筒状体からなる導光板１５における両周面（筒状体の外周面１５ｃと内周面１５ｄ）に外部への光の出光を防止するために反射シートを貼付するようにしてもよい。また、反射シートの代わりに、表示灯１の本体部を不透光性の樹脂等から形成しても良いし、少なくとも外周壁部３及び内周壁部７を不透光性の樹脂等から形成すれば良い。 A reflective sheet may be attached to both peripheral surfaces (the outer peripheral surface 15c and the inner peripheral surface 15d of the tubular body) of the light guide plate 15 made of a tubular body in order to prevent light from being emitted to the outside. .. Further, instead of the reflective sheet, the main body of the indicator lamp 1 may be formed of a translucent resin or the like, or at least the outer peripheral wall portion 3 and the inner peripheral wall portion 7 may be formed of a translucent resin or the like. Just do it.

［実施の形態２］
実施の形態１の表示灯１おける発光表示部１１は、導光板１５の発光面１５ｂそのものによって形成したものであったが、本実施の形態の表示灯３９の発光表示部４１は、本体部を形成する樹脂によって形成され、その背面側に導光板４３を配置するようにしたものである。
導光板４３は、内周壁部７と外周壁部３との間の溝部に挿入するようにすればよい（図６参照）。 [Embodiment 2]
The light emitting display unit 11 in the indicator lamp 1 of the first embodiment was formed by the light emitting surface 15b itself of the light guide plate 15, but the light emitting display unit 41 of the indicator lamp 39 of the present embodiment has a main body portion. It is formed of the resin to be formed, and the light guide plate 43 is arranged on the back surface side thereof.
The light guide plate 43 may be inserted into the groove portion between the inner peripheral wall portion 7 and the outer peripheral wall portion 3 (see FIG. 6).

本実施の形態では、発光表示部４１は本体部を形成する樹脂で形成されているので、この樹脂を透光性を有する赤色にすれば、ＬＥＤ９は汎用の白色のものを使用してもよい。 In the present embodiment, the light emitting display unit 41 is formed of a resin forming the main body portion. Therefore, if this resin is made red with translucency, a general-purpose white LED 9 may be used. ..

なお、実施の形態１の導光板１５は周方向で繋がったリングであったが、本実施の形態の導光板４３は、図５に示すように、リングの一部に切断部４４が形成されたいわゆるＣ型リングである。なお、導光板４３において、実施の形態１の導光板１５の凹部１９に代えて切断部４４を設けた点以外の構成は導光板１５と同様であり、反射面（図示なし）、発光面４３ｂを有している。 The light guide plate 15 of the first embodiment was a ring connected in the circumferential direction, but the light guide plate 43 of the present embodiment has a cut portion 44 formed in a part of the ring as shown in FIG. It is a so-called C-shaped ring. The light guide plate 43 has the same configuration as the light guide plate 15 except that the cut portion 44 is provided in place of the recess 19 of the light guide plate 15 of the first embodiment, and has a reflective surface (not shown) and a light emitting surface 43b. have.

本実施の形態で一例を挙げたように、導光板４３は繋がったリングである必要はなく、全体として略リング状をしておればよく、例えば、２枚の半円状の導光板をリング状に配置して、各導光板の端部の側面にそれぞれ発光源を配置するようにしてもよい。
なお、本実施の形態では、外部への光の出光を防止するために、導光板４３における両周面に反射シートを貼付するか、外周壁部３及び内周壁部７を不透光性の樹脂等で形成すれば良い。 As an example given in this embodiment, the light guide plate 43 does not have to be a connected ring, and may be substantially ring-shaped as a whole. For example, two semicircular light guide plates are ringed. The light emitting source may be arranged on the side surface of the end portion of each light guide plate.
In this embodiment, in order to prevent light from being emitted to the outside, reflective sheets are attached to both peripheral surfaces of the light guide plate 43, or the outer peripheral wall portion 3 and the inner peripheral wall portion 7 are opaque. It may be formed of resin or the like.

１ 表示灯
３ 外周壁部
５ 取付部
５ａ ネジ孔
５ｂ 立片部
７ 内周壁部
９ ＬＥＤ
１１ 発光表示部
１３ 発信機収納部
１５ 導光板
１５ａ 反射面
１５ｂ 発光面
１５ｃ 外周面
１５ｄ 内周面
１７ 反射ドット
１９ 凹部
２１ 両側壁
２３ 基板
２５ ネジ孔
２７ 平坦面
２９ 開口部
３０ 発信機
３１ 押ボタン
３３ 押ボタン格納部
３５ 発信機本体部
３７ 電話ジャック用窓扉
３９ 表示灯（実施の形態２）
４１ 発光表示部
４３ 導光板
４３ｂ 発光面
４４ 切断部 1 Indicator light 3 Outer wall part 5 Mounting part 5a Screw hole 5b Standing piece part 7 Inner peripheral wall part 9 LED
11 Light emitting display 13 Transmitter storage 15 Light guide plate 15a Reflective surface 15b Light emitting surface 15c Outer peripheral surface 15d Inner peripheral surface 17 Reflective dot 19 Recessed dot 21 Both side walls 23 Board 25 Screw hole 27 Flat surface 29 Opening 30 Transmitter 31 Push button 33 Push button storage unit 35 Transmitter main unit 37 Window door for telephone jack 39 Indicator light (embodiment 2)
41 Light emitting display 43 Light guide plate 43b Light emitting surface 44 Cut part

（Ａ－１）
本発明に係る表示灯は、筒体からなる外周壁部と、該外周壁部の内周側に前記外周壁部と所定の間隔を離して形成された内周壁部と、該内周壁部の内側に形成された発信機収容部と、前記内周壁部と前記外周壁部との間に形成されて発光源が発光する光を透光させて光る発光表示部とを備えたものであって、
背面側に反射面が形成され、側面から入射した光を拡散させて表面側を発光面として光らせる導光板を有し、
該導光板は前記外周壁部と前記内周壁部との間に形成された隙間に挿入され、かつ前記外周壁部と前記内周壁部は不透光性の樹脂から形成され、
前記発光表示部は前記導光板から出射する光によって発光するように構成されていることを特徴とするものである。
（Ａ－２）また、上記（Ａ－１）に記載のものにおいて、前記導光板はリング状の筒状体からなり、該筒状体の周方向の一部に切断部又は高さ方向に凹む凹部が形成され、前記切断部又は凹部によって前記発光源が筒状体の周方向に向けて光を入射させる前記側面が形成されていることを特徴とするものである。
（１）本発明に係る表示灯は、発信機収納部と、該発信機収納部の周囲を囲むように形成されて発光源が発光する光を透光させて光る発光表示部とを備えた表示灯であって、
背面側に反射面が形成され、側面から入射した光を拡散させて表面側を発光面として光らせる導光板を有し、前記発光表示部は前記導光板から出射する光によって発光するように構成されていることを特徴とするものである。 (A-1)
The indicator lamp according to the present invention includes an outer peripheral wall portion made of a tubular body, an inner peripheral wall portion formed on the inner peripheral side of the outer peripheral wall portion at a predetermined distance from the outer peripheral wall portion, and the inner peripheral wall portion. It is provided with a transmitter accommodating portion formed inside and a light emitting display unit formed between the inner peripheral wall portion and the outer peripheral wall portion to transmit light emitted by a light emitting source. ,
A reflective surface is formed on the back surface side, and it has a light guide plate that diffuses light incident from the side surface and makes the front surface side shine as a light emitting surface.
The light guide plate is inserted into a gap formed between the outer peripheral wall portion and the inner peripheral wall portion, and the outer peripheral wall portion and the inner peripheral wall portion are formed of a translucent resin.
The light emitting display unit is characterized in that it is configured to emit light by light emitted from the light guide plate.
(A-2) Further, in the one described in (A-1) above, the light guide plate is made of a ring-shaped tubular body, and a cut portion or a height direction is formed in a part of the circumferential direction of the tubular body. It is characterized in that a recessed recess is formed, and the cut portion or the recess forms the side surface on which the light emitting source emits light toward the circumferential direction of the cylindrical body.
(1) The indicator lamp according to the present invention includes a transmitter storage unit and a light emission display unit formed so as to surround the periphery of the transmitter storage unit and transmitting light emitted by a light emitting source. It ’s an indicator light,
A reflective surface is formed on the back surface side, and a light guide plate that diffuses light incident from the side surface to illuminate the front surface side as a light emitting surface is provided, and the light emitting display unit is configured to emit light by light emitted from the light guide plate. It is characterized by being.

Claims (2)

筒体からなる外周壁部と、該外周壁部の内周側に前記外周壁部と所定の間隔を離して形成された内周壁部と、該内周壁部の内側に形成された発信機収容部と、前記内周壁部と前記外周壁部との間に形成されて発光源が発光する光を透光させて光る発光表示部とを備えた表示灯であって、
背面側に反射面が形成され、側面から入射した光を拡散させて表面側を発光面として光らせる導光板を有し、
該導光板は前記外周壁部と前記内周壁部との間に形成された隙間に挿入され、かつ前記外周壁部と前記内周壁部は不透光性の樹脂から形成され、
前記発光表示部は前記導光板から出射する光によって発光するように構成されていることを特徴とする表示灯。 An outer peripheral wall portion made of a tubular body, an inner peripheral wall portion formed on the inner peripheral side of the outer peripheral wall portion at a predetermined distance from the outer peripheral wall portion, and a transmitter accommodating formed inside the inner peripheral wall portion. An indicator lamp including a unit and a light emitting display unit formed between the inner peripheral wall portion and the outer peripheral wall portion to transmit light emitted by a light emitting source to shine.
A reflective surface is formed on the back surface side, and it has a light guide plate that diffuses light incident from the side surface and makes the front surface side shine as a light emitting surface.
The light guide plate is inserted into a gap formed between the outer peripheral wall portion and the inner peripheral wall portion, and the outer peripheral wall portion and the inner peripheral wall portion are formed of a translucent resin.
The light emitting display unit is an indicator lamp configured to emit light by light emitted from the light guide plate. 前記導光板はリング状の筒状体からなり、該筒状体の周方向の一部に切断部又は高さ方向に凹む凹部が形成され、前記切断部又は凹部によって前記発光源が筒状体の周方向に向けて光を入射させる前記側面が形成されていることを特徴とする請求項１記載の表示灯。 The light guide plate is made of a ring-shaped tubular body, and a cut portion or a recess recessed in the height direction is formed in a part of the tubular body in the circumferential direction, and the light emitting source is a tubular body by the cut portion or the recess. The indicator lamp according to claim 1, wherein the side surface for incident light in the circumferential direction is formed.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007188681A (en) * 2006-01-11 2007-07-26 Alps Electric Co Ltd Surface light-emitting device
JP2013080713A (en) * 2012-12-25 2013-05-02 Mitsubishi Electric Corp Lighting device and lamp
JP2015018445A (en) * 2013-07-11 2015-01-29 ホーチキ株式会社 Transmitter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007188681A (en) * 2006-01-11 2007-07-26 Alps Electric Co Ltd Surface light-emitting device
JP2013080713A (en) * 2012-12-25 2013-05-02 Mitsubishi Electric Corp Lighting device and lamp
JP2015018445A (en) * 2013-07-11 2015-01-29 ホーチキ株式会社 Transmitter

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