JP2010129382A - Lighting fixture - Google Patents

Lighting fixture Download PDF

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JP2010129382A
JP2010129382A JP2008302967A JP2008302967A JP2010129382A JP 2010129382 A JP2010129382 A JP 2010129382A JP 2008302967 A JP2008302967 A JP 2008302967A JP 2008302967 A JP2008302967 A JP 2008302967A JP 2010129382 A JP2010129382 A JP 2010129382A
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holder
substrate
cylindrical
case
lamp
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JP5227147B2 (en
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Hideyoshi Nakamura
英犠 中村
Takumi Kijima
工 木島
Katsukiyo Morii
勝清 森井
Toshio Akai
敏夫 赤井
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Tachibana Kogyo:Kk
有限会社橘工業
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/27Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/275Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21KNON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20Light sources comprising attachment means
    • F21K9/27Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F21K9/272Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

<P>PROBLEM TO BE SOLVED: To attain support stability and assembly efficiency improvement of a base board in a straight-tube type lighting fixture having the base board where a LED is mounted. <P>SOLUTION: The lighting fixture has a cylindrical body 1, the base board 2, a holder member 3, and an end member 4. A part of the end member 4 is fitted in the cylindrical body 1, and two pins 11 are projected on an outer end face of the end member 4 as well as a fluorescent lamp. The holder member 3 has a hinge section 8 while it holds the base board 2, and the base board 2 can be simply fitted inside the holder member 3 by expanding deforming the base board 2. An end section of the holder member 3 is fitted into a notch 16 formed on the end member 4, and consequently, a relative posture between the end member 4 and the base board 2 can be maintained uniformly. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本願発明は、LED(発光ダイオード)のように発光素子を光源に使用した灯具のうち、従来の直管式蛍光灯の代替品として好適な直管タイプに関するものである。   The present invention relates to a straight tube type suitable as an alternative to a conventional straight tube fluorescent lamp among lamps using light emitting elements as light sources such as LEDs (light emitting diodes).
LEDは省電力・高輝度・長寿命といった特色を持っており、そこで次世代照明装置と目されている。このLED方式の灯具は既に商品化もなされているが、商品化をより強く推進するための一つの方策として、既存の蛍光灯にそのまま置き換えて使用できるようにすることが考えられている。   LEDs have features such as power saving, high brightness, and long life, and are therefore regarded as next-generation lighting devices. Although this LED-type lamp has already been commercialized, as one measure for further promoting the commercialization, it is considered that it can be used as it is by replacing it with an existing fluorescent lamp.
LEDは、通電により発光する発光素子(チップ)をガラスや樹脂等の透光材で封止することでランプ化しており、直管式蛍光灯代替方式の灯具に適用する場合は、細長い基板(回路基板)にLEDランプを多数搭載して、基板を筒体の内部に配置せねばならず、また、筒体の左右両端には、2本ずつのピンが突出した端部材を取り付ける必要がある。そして、基板は細長いので安定良く保持する必要があり、また、ピンを器具本体に挿入した状態で光が一定の方向に照射されるように基板とピンとの関係を保持する必要がある。   The LED is made into a lamp by sealing a light emitting element (chip) that emits light when energized with a light-transmitting material such as glass or resin. When applied to a lamp of an alternative to a straight tube fluorescent lamp, an elongated substrate ( Circuit boards) must be equipped with a large number of LED lamps, the board must be placed inside the cylinder, and end members with two protruding pins must be attached to the left and right ends of the cylinder. . And since the board | substrate is elongate, it is necessary to hold | maintain stably, and it is necessary to hold | maintain the relationship between a board | substrate and a pin so that light may be irradiated to a fixed direction in the state which inserted the pin into the instrument main body.
この点について例えば特許文献1(特に図3)では、文章で明示されてはいないが、基板は筒体にスペーサを介してファスナーで締結されており、また、特許文献2では、端部材に形成したスリットに基板の端部を差し込むことにより、基板と端部材との相対姿勢を一定に保持している。
特開2007−12322号公報 特許第4156657号公報
In this regard, for example, in Patent Document 1 (particularly FIG. 3), the substrate is fastened to the cylindrical body with a fastener through a spacer, but in Patent Document 2, it is formed on the end member. By inserting the end of the substrate into the slit, the relative posture between the substrate and the end member is kept constant.
JP 2007-12322 A Japanese Patent No. 4156657
特許文献1では基板の長さが長くても安定的に保持できる利点があるが、筒体に取り付け穴を開けねばならないため部材の加工の手間が掛かるのみならず、灯具の組み立てに際しては、一々ファスナーを操作せねばならずに手間が掛かる問題や、端部材が基板と所定の姿勢になるように一々姿勢を確認しながら筒体にセットせねばならないためその取り付けが面倒である問題があった。   In Patent Document 1, there is an advantage that the substrate can be stably held even if the length of the substrate is long. However, since it is necessary to make a mounting hole in the cylindrical body, not only labor for processing the member is taken, but also in assembling the lamp. There is a problem that it takes time to operate the fastener, and there is a problem that the mounting is troublesome because it is necessary to set the end member with the substrate while checking the posture so that the end member is in a predetermined posture. .
また、特許文献1では端部材と基板との相対的な姿勢が一定に保持されている訳ではないため、端部材が筒体に対して回転すると、光の照射方向が予め想定していた状態からずれてしまったり、左右の端部材の姿勢が不揃いになってピンを器具に差し込みできなくなったりする問題が懸念される。   Further, in Patent Document 1, since the relative posture between the end member and the substrate is not always kept constant, when the end member rotates with respect to the cylinder, the light irradiation direction is assumed in advance. There is a concern that the left and right end members may be misaligned and the pins cannot be inserted into the instrument.
他方、特許文献2では基板と端部材との相対的な姿勢は一体に保持されるため、光の照射方向がずれたり左右の端部材のピンの姿勢が不揃いになったりすることはないが、基板はある程度以上に長くなると曲がり易くなって安定性が悪くなるという問題がある。また、基板は樹脂からなっていて強度はさほど強くないため、左右の端部材を逆方向に回転させることで基板にねじり力が作用すると、基板が破損してしまう虞もある。   On the other hand, in Patent Document 2, since the relative posture of the substrate and the end member is integrally held, the light irradiation direction is not shifted or the postures of the pins of the left and right end members are not uneven. There is a problem that if the substrate becomes longer than a certain length, the substrate is easily bent and the stability is deteriorated. Further, since the substrate is made of resin and the strength is not so strong, if the torsional force acts on the substrate by rotating the left and right end members in the opposite direction, the substrate may be damaged.
本願発明は、このような現状を改善すべく成されたものである。また、蛍光灯は、始動方式にグローランプ方式やラピッドスタート方式、高周波点灯方式(Hf,FHF)といったものがあり、それぞれ専用の蛍光灯(管)が使用されているが、本願は、始動方式の相違する各種の蛍光灯器具にそのまま使用可能としたLED方式灯具も開示している。   The present invention has been made to improve the current situation. In addition, fluorescent lamps include a glow lamp system, a rapid start system, and a high frequency lighting system (Hf, FHF) as the starting system, and dedicated fluorescent lamps (tubes) are used. LED type lamps that can be used as they are for various fluorescent lamp fixtures are also disclosed.
本願発明は、透光性素材から成る両端開口の細長い筒体と、前記筒体の両端に装着した端部材と、前記筒体の内部に配置した細長い基板とを備えており、前記基板の片面を光源配置面としてこれに発光素子方式光源が搭載されている、という灯具を対象にしている。   The present invention includes a long and narrow cylindrical body made of a translucent material, end members attached to both ends of the cylindrical body, and a long and narrow substrate disposed inside the cylindrical body. As a light source arrangement surface, a lamp having a light emitting element type light source mounted thereon is targeted.
そして請求項1の発明では、前記筒体の内部には、前記基板を保持するホルダー部材が筒体の長手方向に沿って長く延びるように配置されており、前記ホルダー部材と左右端材とを筒体の軸心回りに相対回転しないように嵌め合わせることにより、前記端部材と基板との相対姿勢を一定に保持している。   In the first aspect of the present invention, a holder member for holding the substrate is disposed in the cylindrical body so as to extend long along the longitudinal direction of the cylindrical body, and the holder member and the left and right end members are connected to each other. By fitting so as not to rotate relatively around the axis of the cylinder, the relative posture between the end member and the substrate is kept constant.
請求項2の発明は、請求項1において、前記両端部材の外端面からはそれぞれ蛍光灯器具本体に嵌め込まれる2本のピンが突出している一方、前記ホルダー部材は、前記基板を光源配置面と反対側の裏面から抱持する断面形状になっており、このため前記ホルダー部材は基板の光源配置面の側に露出した折り返し部を有しており、前記折り返し部を、前記光源から照射された光が筒体の内面に反射して戻ってくると再度筒体の内面に向けて反射させる反射面と成している。   According to a second aspect of the present invention, in the first aspect, the two pins that are fitted into the fluorescent lamp fixture main body protrude from the outer end surfaces of the both end members, respectively, while the holder member serves as the light source arrangement surface. The holder member has a cross-sectional shape that is held from the back surface on the opposite side. Therefore, the holder member has a folded portion exposed on the light source arrangement surface side of the substrate, and the folded portion is irradiated from the light source. When the light is reflected by the inner surface of the cylinder and returns, it is a reflection surface that reflects the light toward the inner surface of the cylinder again.
請求項3の発明は、請求項2において、前記ホルダー部材は、筒体の内周面に密接又は密着した断面略円弧状の基部を備えており、前記基部において長く延びる長手縁部は基板の光源配置面の側にはみ出しており、前記ホルダー部材における基部の長手縁部に、前記基板の光源配置面に向けて延びる前記折り返し部を一体に設けており、かつ、前記基部のうち周方向に沿った略中間部を薄肉のヒンジ部と成すことにより、一対の折り返し部の間隔が広がるように広げ変形させる得るようになっており、前記ホルダー部材を広げ変形させることにより、基板をその巾方向に移動させてホルダー部材に嵌め入れることが可能ならしめられている。   According to a third aspect of the present invention, in the second aspect of the present invention, the holder member includes a base portion having a substantially arc-shaped cross section that is in close contact with or in close contact with the inner peripheral surface of the cylindrical body. The folding portion that protrudes toward the light source arrangement surface of the substrate is integrally provided at the longitudinal edge portion of the base portion of the holder member, and extends toward the light source arrangement surface of the substrate. By forming a substantially intermediate part along the thin hinge part, it can be expanded and deformed so that the distance between the pair of folded parts is widened. It is possible to move it into the holder member and fit it into the holder member.
請求項4の発明は、請求項1〜3のうちのいずれかにおいて、前記ホルダー部材は、前記筒体の内周面に密接又は密着する断面円弧状の基部を備えている一方、前記端部材には、前記ホルダー部材の端部が入り込む切欠きが形成されている。請求項5の発明は、請求項1〜4のうちのいずれかにおいて、前記ホルダー部材は樹脂製品である一方、前記端部材は、筒体に嵌着されたアウターケースと、前記筒体の軸方向にスライドするように前記アウターケースに取り付けられたインナーケースとを備えており、前記インナーケースとホルダー部材とを相対回転不能に嵌合させているとと共に、前記インナーケースはアウターケースの外端面から離れる方向にばねで押されている。   According to a fourth aspect of the present invention, in any one of the first to third aspects, the holder member includes a base having an arc-shaped cross section that is in close contact with or in close contact with the inner peripheral surface of the cylindrical body, while the end member is A notch into which the end of the holder member enters is formed. According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the holder member is a resin product, while the end member includes an outer case fitted to the cylindrical body and a shaft of the cylindrical body. An inner case attached to the outer case so as to slide in a direction, the inner case and the holder member are fitted so as not to rotate relative to each other, and the inner case is an outer end surface of the outer case. It is pushed by the spring in the direction away from
本願発明では、基板は細長いホルダー部材で保持されているため、ホルダー部材を強度メンバーとして剛性を保持せしめることにより、長い灯具であっても基板を安定良く保持できる。また、ホルダー部材と端部材との相対姿勢を一定に保持することで端部材と基板との姿勢は一定に保持されるのであり、このため、請求項2のように両端にピンを有する蛍光灯代替灯具に適用しても、端部材と基板との相対姿勢がずれて照射方向がずれたり左右の端部材のピンの姿勢が不揃いになったりすることはない。   In the present invention, since the substrate is held by the elongated holder member, the substrate can be stably held even by a long lamp by holding the rigidity using the holder member as a strength member. In addition, since the relative orientation between the holder member and the end member is kept constant, the orientation between the end member and the substrate is kept constant. For this reason, a fluorescent lamp having pins at both ends as in claim 2 Even when applied to an alternative lamp, the relative posture between the end member and the substrate is not shifted, the irradiation direction is not shifted, and the pin postures of the left and right end members are not uneven.
そして、本願発明は、端部材と基板とを直接に嵌め合わせるのではなくて、端部材とホルダー部材とを嵌め合わせることで間接的に端部材と基板との相対姿勢を一定に保持しているのであり、このため、端部材を回転させることで基板に外力が掛かることはなく、このため基板の破損や変形を防止できると共に、左右の端部材の相対姿勢を一定に保持することも確実ならしめられる。   The present invention does not directly fit the end member and the substrate, but indirectly holds the relative posture of the end member and the substrate indirectly by fitting the end member and the holder member. Therefore, if the end member is rotated, no external force is applied to the substrate, so that the substrate can be prevented from being damaged or deformed, and the relative posture of the left and right end members can be kept constant. Squeezed.
請求項2の構成を採用すると、ホルダー部材が反射板の機能を兼用するため、電力消費量を増大することなく照度(或いは輝度)を高めることができて好適である。この場合、ホルダー部材を光反射性の素材で製造することでホルダー部材の折り返し部に光反射性を持たせることも可能てあるし、ホルダー部材の折り返し部に金属箔を貼ったり金属層を蒸着したり光反射性塗料を塗布したりすることで折り返し部に反射層を形成することも可能である。   If the structure of Claim 2 is employ | adopted, since a holder member combines the function of a reflecting plate, it can raise illumination intensity (or brightness | luminance), without increasing power consumption, and is suitable. In this case, it is possible to make the folded part of the holder member light-reflective by manufacturing the holder member from a light-reflective material, and a metal foil is attached to the folded part of the holder member or a metal layer is deposited. It is also possible to form a reflective layer on the folded portion by applying a light-reflective coating.
ホルダー部材で基板を保持する方法としては、ホルダー部材の端から基板を差し込むという方法も採用できるが、基板及びホルダー部材の長さが例えば1.5m以上といった長さになると嵌め込みが面倒になることがあり、また、LEDランプやコネクタがホルダー部材の端面に当たるといった問題も懸念される。これに対して請求項3の構成を採用すると、ホルダー部材を割り広げるように広げ変形してその内部に基板を巾方向の移動で嵌め入れるという作業により、基板をホルダー部材でワンタッチ的に包むことができるのであり、従って、ホルダー部材への基板の取り付けを、LEDランプやコネクタの接触を抑制しつつ能率良く行える利点がある。   As a method of holding the substrate with the holder member, a method of inserting the substrate from the end of the holder member can also be adopted, but when the length of the substrate and the holder member becomes 1.5 m or more, for example, the fitting becomes troublesome. There is also a concern that the LED lamp or the connector may hit the end face of the holder member. On the other hand, if the structure of Claim 3 is employ | adopted, a holder member is extended and deform | transformed so that it may be extended, and the board | substrate is wrapped with the holder member in one-touch by the operation | work which fits the board | substrate by the movement of the width direction inside. Therefore, there is an advantage that the board can be attached to the holder member efficiently while suppressing the contact of the LED lamp and the connector.
また、ホルダー部材と筒体の内周面との間に空間を開けておくことも可能であるが、この場合は、ホルダー部材はそれ自身のみで剛性を確保せねばならないため、肉厚を厚くせねばならない等の問題が生じる虞がある。これに対して請求項3の構成のように、ホルダー部材は断面円弧状の基部が筒体の内周面に密接又は密着させと、ホルダー部材が撓み変形することが筒体で阻止されるため、ホルダー部材を過度に厚肉化する必要がなくて材料費の節約や軽量化に貢献できる。   It is also possible to leave a space between the holder member and the inner peripheral surface of the cylindrical body, but in this case, since the holder member must ensure rigidity by itself, the wall thickness is increased. There is a risk of problems such as having to do so. On the other hand, as in the configuration of the third aspect, the holder member prevents the holder member from being bent and deformed when the base having an arcuate cross section is in close contact with or in close contact with the inner peripheral surface of the cylinder. The holder member does not need to be excessively thick and can contribute to saving of material cost and weight reduction.
端部材とホルダー部材とを相対回転不能の状態に嵌め合わせる方法は様々の態様を採用できるが、ホルダー部材と筒体との間に空間が空いていると、ホルダー部材は筒体との間に空間が空いて状態を保持しつつ端部材に嵌め込まねばならないため、灯具の組み立て作業が厄介になる(長さが長くなると、この厄介さは特に顕著に顕れる。)。これに対して請求項4の構成を採用すると、ホルダー部材は筒体の内周面に重ねた状態で端部材の切欠きに嵌め込めば良いため、灯具の組み立て作業を能率よく行える利点がある。   Various methods can be adopted for fitting the end member and the holder member into a state in which the end member and the holder member cannot be rotated relative to each other. However, if there is a space between the holder member and the cylinder, the holder member is interposed between the cylinder and the cylinder. The assembly of the lamp becomes cumbersome because it must be fitted into the end member while keeping the space open (this trouble becomes particularly noticeable as the length increases). On the other hand, if the structure of Claim 4 is employ | adopted, since the holder member should just fit in the notch of an end member in the state piled up on the internal peripheral surface of a cylinder, there exists an advantage which can perform the assembly operation | work of a lamp efficiently. .
さて、ホルダー部材は加工コストや軽量化の点から樹脂製とするのが好ましい(特に押し出し加工品が好ましい。)。しかし、樹脂は素材によって熱膨張率が大きいものがある。このため、気温が低くなるとホルダー部材の端面と端部材との間に隙間ができてガタ付きが生じたり、気温が高くなるとホルダー部材が延びて端部材を突っ張る現象が生じるといった不具合が懸念される。この点、請求項5の構成を採用すると、ホルダー部材が熱膨張率の高い素材からなっていても長さの変化がインナーケースの移動によって吸収されるため、ガタ付きが生じたたり突っ張り現象が生じたりすることを的確に防止できる利点がある。   The holder member is preferably made of resin from the viewpoint of processing cost and weight reduction (in particular, an extruded product is preferable). However, some resins have a large coefficient of thermal expansion depending on the material. For this reason, there is a concern that when the temperature is low, a gap is formed between the end surface of the holder member and the end member is loose, or when the temperature is high, the holder member is extended and the end member is stretched. . In this regard, when the structure of claim 5 is adopted, even if the holder member is made of a material having a high coefficient of thermal expansion, the change in length is absorbed by the movement of the inner case. There is an advantage that it can be prevented accurately.
次に、本願発明の実施形態を図面に基づいて説明する。図1〜図5では第1実施形態を示し、図6以下では他の実施形態を示している。以下、第1実施形態から順次説明する。   Next, an embodiment of the present invention will be described with reference to the drawings. 1 to 5 show the first embodiment, and FIG. 6 and subsequent drawings show other embodiments. Hereinafter, the first embodiment will be described sequentially.
(1).第1実施形態(図1〜図5)
図1のうち(A)は灯具の正面図、(B)は分離斜視図、図2のうち(A)は部分的な分離正面図、(B)は組み立て後の状態での部分断面図、(C)は(B)のC−C視断面図、(D)は(B)のD−D視断面図、図3は部分的な平断面図、図4は図3の IV-IV視断面図である。
(1). First embodiment (FIGS. 1 to 5)
1A is a front view of a lamp, FIG. 2B is an exploded perspective view, FIG. 2A is a partially separated front view, and FIG. 1B is a partial cross-sectional view after assembly. (C) is a cross-sectional view taken along the line CC in (B), (D) is a cross-sectional view taken along the line DD in (B), FIG. 3 is a partial cross-sectional view, and FIG. It is sectional drawing.
図1(A)から理解できるように、灯具は直管式蛍光灯と似た外観を呈しており、全長は蛍光灯の規格に合わせている。そして、図1(B)に示すように、灯具は、透光性(すなわち透明又は半透明)の樹脂素材からなる筒体1と、筒体1の内部に配置した細長い帯状の基板2と、同じく筒体1の内部に配置したホルダー部材3と、筒体1の両端に装着(嵌着)した端部材4を主要部材として構成されている。   As can be understood from FIG. 1A, the lamp has an appearance similar to that of a straight tube fluorescent lamp, and the total length matches the standard of the fluorescent lamp. And as shown to FIG. 1 (B), a lamp is the cylinder 1 which consists of a translucent (namely, transparent or translucent) resin material, and the elongate strip-shaped board | substrate 2 arrange | positioned inside the cylinder 1, Similarly, the holder member 3 disposed inside the cylindrical body 1 and the end members 4 attached (fitted) to both ends of the cylindrical body 1 are configured as main members.
筒体1は、乳白色のような透光性樹脂から成っている。具体的には、ポリカーボネートが挙げれる。本実施形態では筒体1の断面は真円になっているが、楕円や小判形等の非円形の断面形状とすることも可能である。なお、筒体1は、コストや平行度維持の点から押し出し加工品を採用するのが好ましい。   The cylinder 1 is made of a translucent resin such as milky white. Specific examples include polycarbonate. In the present embodiment, the cross section of the cylindrical body 1 is a perfect circle, but it may be a noncircular cross sectional shape such as an ellipse or an oval shape. In addition, it is preferable to employ | adopt the extruded product as the cylinder 1 from the point of cost or the maintenance of parallelism.
基板2は筒体1の内径よりも小さい巾寸法であり、その片面は光源配置面1aになっており、この光源配置1aに多数のLEDランプ5を一列に並べて多数装着している。図面では省略しているが、基板2の光源配置面2a又はこれと反対側の裏面2bに回路がプリントされている。基板2の両端には外側に開口した箱状の雌型コネクタ6を取り付けている。   The substrate 2 has a width dimension smaller than the inner diameter of the cylindrical body 1, and one surface thereof is a light source arrangement surface 1a, and a large number of LED lamps 5 are arranged in a line on the light source arrangement 1a. Although not shown in the drawing, a circuit is printed on the light source arrangement surface 2a of the substrate 2 or the back surface 2b on the opposite side. A box-shaped female connector 6 opened to the outside is attached to both ends of the substrate 2.
ホルダー部材3はポリカーボネートのような樹脂成形品であり、基板2をその裏面2aの側から抱持する形態になっている。すなわち、ホルダー部材3は、筒体1の内周面に沿って拡がる円弧状の3aと、基部3aの外端から基板2の光源配置面2aに向けて延びる一対の折り返し部2bとで構成されており、全体としては三日月に近い形状でかつ中空に近い形態になっている。   The holder member 3 is a resin molded product such as polycarbonate, and is configured to hold the substrate 2 from the back surface 2a side. That is, the holder member 3 includes an arc-shaped 3 a that extends along the inner peripheral surface of the cylindrical body 1, and a pair of folded portions 2 b that extend from the outer end of the base portion 3 a toward the light source arrangement surface 2 a of the substrate 2. As a whole, it has a shape close to a crescent and close to a hollow shape.
基部3aはその大部分が基板2の裏面2bの側に位置しつつ、長く延びる2つの側縁は基板2における光源配置面2aの外側にはみ出ており、この側縁から折り返し部3bが基板2の光源配置面2aに向けて延びている。従って、折り返し部3bは筒体1の軸心方向から見て基板2の光源配置面2aに対して若干の角度で傾斜しており、この傾斜により、折り返し部3bの外面が反射面になっている。折り返し部3bの先端は基板2に向けて延びるリブ状になっている。   Most of the base 3a is located on the back surface 2b side of the substrate 2, and two side edges that extend long protrude beyond the light source arrangement surface 2a of the substrate 2, and the folded portion 3b extends from the side edge to the substrate 2. It extends toward the light source arrangement surface 2a. Therefore, the folded portion 3b is inclined at a slight angle with respect to the light source arrangement surface 2a of the substrate 2 when viewed from the axial center direction of the cylindrical body 1, and due to this inclination, the outer surface of the folded portion 3b becomes a reflecting surface. Yes. The tip of the folded portion 3b has a rib shape extending toward the substrate 2.
なお、折り返し部3bの外面に金属箔を貼るなどして反射効率を高めることも可能である。折り返し部3bの先端はLEDランプ5の列に近接している。図2(D)では、筒体1の軸方向から見た状態でLEDランプ5から等距離の点を二点鎖線の線として示し、これにXの符号を付している。光の明るさ(強さ)を円周方向に見た場合、このXのように変化すると言える。つまり、一点鎖線Xは基板2を起点として光の強さをグラフ化したのと同じであり、LEDランプ5からの光の放射光が基板2の表面に対して直角に近くなるほど光は強くなると言える。   It is also possible to increase the reflection efficiency by attaching a metal foil to the outer surface of the folded portion 3b. The tip of the folded portion 3 b is close to the row of LED lamps 5. In FIG. 2 (D), the points equidistant from the LED lamp 5 in the state viewed from the axial direction of the cylinder 1 are shown as two-dot chain lines, and this is denoted by the symbol X. When the brightness (intensity) of light is seen in the circumferential direction, it can be said that it changes like this X. In other words, the alternate long and short dash line X is the same as the graph of the light intensity starting from the substrate 2, and the light becomes stronger as the emitted light from the LED lamp 5 becomes closer to the surface of the substrate 2 at a right angle. I can say that.
そして、LEDランプ5は点光源であるため人は違和感を感じることがあるが、折り返し部3bを反射部とすることにより、LEDランプ5から照射された光は筒体1の内面と折り返し部3bとで反射を繰り返し、その拡散作用によって違和感のない柔らかい光になる。   And since the LED lamp 5 is a point light source, people may feel uncomfortable, but by using the folded portion 3b as a reflecting portion, the light emitted from the LED lamp 5 is reflected on the inner surface of the cylindrical body 1 and the folded portion 3b. And the reflection is repeated, and the light diffuses into soft light with no sense of incongruity.
ホルダー部材3の基部3aは筒体1の内周面に密接しており(密着させてもよい)、かつ、筒体1の内周の半分近くの範囲で周方向に拡がっている。ホルダー部材3は基本的には透光性はないので、筒体1はホルダー部材3が重なっていない部分が照射面になっている。   The base 3 a of the holder member 3 is in close contact with the inner peripheral surface of the cylinder 1 (may be in close contact), and extends in the circumferential direction in a range near half of the inner periphery of the cylinder 1. Since the holder member 3 is basically not translucent, the cylindrical body 1 has an irradiation surface where the holder member 3 does not overlap.
また、基板2の巾寸法は、ホルダー部材3における基部3aの長手両側縁間の巾寸法よりも少し小さい寸法になっており、ホルダー部材3の基部3aには、基板2の長手側縁が安定的に載る平坦部7を形成している。基板2は、その長手両側縁が平坦部7に載ることで巾方向のずれが保持され、かつ、ホルダー部材3の折り返し部3bが光源配置面2aに当接又は引接していることにより厚さ方向のずれが阻止されている。   In addition, the width dimension of the substrate 2 is slightly smaller than the width dimension between both longitudinal edges of the base portion 3 a of the holder member 3, and the longitudinal side edge of the substrate 2 is stable on the base portion 3 a of the holder member 3. A flat portion 7 is formed. The substrate 2 has a thickness that is obtained when the longitudinal side edges of the substrate 2 are placed on the flat portion 7 so that the shift in the width direction is maintained, and the folded portion 3b of the holder member 3 is in contact with or in contact with the light source arrangement surface 2a. Directional deviation is prevented.
ホルダー部材3の基部3aのうち巾方向(周方向)に沿った中間部は薄肉のヒンジ部8なっており、このため、ホルダー部材3はヒンジ部8を折り目として割り広げるように変形させることができる。従って、図4に示すように、ホルダー部材3を折り返し部3bの間隔が広がるように変形させてから、基板2をその巾方向に移動させてホルダー部材3の内部に嵌め入、次いで、ホルダー部材3を弾性復元力で元の形態に戻す、という手順を踏むことにより、ホルダー部材3及び基板2が長くても、基板2をホルダー部材3にワンタッチ的に取り付けることができる。   The intermediate portion along the width direction (circumferential direction) of the base portion 3a of the holder member 3 is a thin-walled hinge portion 8. For this reason, the holder member 3 can be deformed so that the hinge portion 8 is split and widened. it can. Therefore, as shown in FIG. 4, after the holder member 3 is deformed so that the interval between the folded portions 3b is widened, the substrate 2 is moved in the width direction and fitted into the holder member 3, and then the holder member Even if the holder member 3 and the substrate 2 are long, the substrate 2 can be attached to the holder member 3 in a one-touch manner by taking the procedure of returning the shape 3 to the original form by elastic restoring force.
なお、ホルダー部材3は、図5(A)のように広がった状態に成形しておいて、筒体1に嵌め入れることで折り返し部3bの間隔が狭まるように変形させることも可能であるが、折り返し部3bの間隔を狭めた状態に成形しておいてから、基板2の保持機能の確実性という点からは、基板2の取り付けに際して広げ変形させるのが好ましいと言える。   Note that the holder member 3 can be deformed so that the interval between the folded portions 3b is narrowed by forming the holder member 3 in an expanded state as shown in FIG. From the viewpoint of the reliability of the holding function of the substrate 2, it can be said that the substrate 2 is preferably expanded and deformed after being formed in a state where the interval between the folded portions 3b is narrowed.
例えば図3から明瞭に把握できるように、端部材4は、樹脂より成る略筒状の本体ケース9と、本体ケース9に外側から嵌着した金属板製口金10とを有しており、口金10からは2本の平行なピン11が突出している。本体ケース9は軸方向の略中間部にフランジ9aを有しており、フランジ9aを挟んだ内側の部分に筒体1が外側から嵌まり、フランジ12を挟んで外側の部分に口金10を嵌着している。本体ケース9のうち筒体1が嵌まる個所には2条の環状溝13が形成されており、この環状溝13にOリング14を嵌め込でいる。このため筒体1は本体ケース9にしっかりと(相対回転しにくい状態に)取り付けられており、かつ、筒体1の内部に湿気が入り込むことも防止できる。   For example, as can be clearly understood from FIG. 3, the end member 4 has a substantially cylindrical main body case 9 made of resin and a metal plate base 10 fitted from the outside to the main body case 9. From 10, two parallel pins 11 protrude. The main body case 9 has a flange 9a at a substantially intermediate portion in the axial direction. The cylindrical body 1 is fitted from the outside to the inner portion sandwiching the flange 9a, and the base 10 is fitted to the outer portion sandwiching the flange 12. I wear it. Two annular grooves 13 are formed in the body case 9 where the cylindrical body 1 is fitted, and an O-ring 14 is fitted into the annular groove 13. For this reason, the cylindrical body 1 is firmly attached to the main body case 9 (in a state in which relative rotation is difficult), and moisture can be prevented from entering the cylindrical body 1.
ピン11は口金に絶縁した状態で固定されており、また、ピン11にはケーブル14が接続されており、2本のケーブル14は雄型コネクタ15に接続されている。本体ケース9の内部には外端に寄った位置に仕切り板15が一体に形成されており、ケーブル14は仕切り板15の内側の空間に配置されている。   The pin 11 is fixed in an insulated state to the base, and a cable 14 is connected to the pin 11, and the two cables 14 are connected to the male connector 15. A partition plate 15 is integrally formed in the main body case 9 at a position close to the outer end, and the cable 14 is disposed in a space inside the partition plate 15.
例えば図1(B)や図2(A)〜(C)に示すように、本体ケース9のうち筒体1の内部位置した端部には、ホルダー部材3の端部が入り込む切欠き16を形成している。切欠き16の内側面16aは2本のピン11の並び方向17と同じ方向に延びており、従って、筒体1の軸方向から見て基板2の光源配置面2aもピン11の並び方向17と平行になっている。その結果、ピン11の並び姿勢と基板2の姿勢とは常に一定に保持されて、LEDランプ5の照射方向が所定の方向に維持される。   For example, as shown in FIG. 1 (B) and FIGS. 2 (A) to (C), a notch 16 into which the end of the holder member 3 enters is inserted into the end of the main body case 9 positioned inside the cylinder 1. Forming. The inner surface 16 a of the notch 16 extends in the same direction as the arrangement direction 17 of the two pins 11. Therefore, the light source arrangement surface 2 a of the substrate 2 is also arranged in the arrangement direction 17 of the pins 11 when viewed from the axial direction of the cylinder 1. It is parallel to. As a result, the alignment posture of the pins 11 and the posture of the substrate 2 are always kept constant, and the irradiation direction of the LED lamp 5 is maintained in a predetermined direction.
図示していないが、灯具は整流や降圧等の機能を司る回路部を備えており、この回路部は基板2の裏面2bに取り付けている(本体ケース9のうちのいずれか一方又は両方の中空部に配置することも可能である。)。   Although not shown, the lamp is provided with a circuit unit that performs functions such as rectification and step-down, and this circuit unit is attached to the back surface 2b of the substrate 2 (one or both of the main body cases 9 are hollow). It is also possible to arrange in the part.)
(2).第2実施形態(図6)
図6では第2実施形態を示している。(A)は側面図、(B)は基板2の平面図である。この実施形態では、基板2にはLEDランプ5の列が2列配置されており、かつ、両列のLEDランプ5は、長手方向の位置を互いにずらして千鳥配列されている。この第2実施形態では単位長さ当たりのLEDランプ5の個数が多くなるため、灯具は長さを変えることなく明るさを強くできる。敢えて述べるまでもないが、LEDランプ5は3列以上配置することも可能である。
(2). Second embodiment (FIG. 6)
FIG. 6 shows a second embodiment. (A) is a side view and (B) is a plan view of the substrate 2. In this embodiment, two rows of LED lamps 5 are arranged on the substrate 2, and the LED lamps 5 in both rows are staggered so that the positions in the longitudinal direction are shifted from each other. In the second embodiment, since the number of LED lamps 5 per unit length is increased, the brightness of the lamp can be increased without changing the length. Needless to say, the LED lamps 5 can be arranged in three or more rows.
(3).第3実施形態及び第4実施形態(図7,図8)
図7に示す第3実施形態は第1実施形態の変形例であり、図7に示す第4実施形態は第2実施形態の変形例である。これら第3実施形態及び第4実施形態は、筒体1の内面箇所に、当該筒体1の軸心を挟んだ反対側からホルダー部材3に当接する補強部材1′を配置している。補強部材2′は透明な樹脂製品であり、ホルダー部材3の折り返し部3bに重なる内向き部1a′を有している。
(3). Third and fourth embodiments (FIGS. 7 and 8)
The third embodiment shown in FIG. 7 is a modification of the first embodiment, and the fourth embodiment shown in FIG. 7 is a modification of the second embodiment. In these third and fourth embodiments, the reinforcing member 1 ′ that contacts the holder member 3 from the opposite side across the axis of the cylindrical body 1 is disposed on the inner surface portion of the cylindrical body 1. The reinforcing member 2 ′ is a transparent resin product, and has an inward portion 1 a ′ that overlaps the folded portion 3 b of the holder member 3.
ホルダー部材3と補強部材1′とで全体として円筒状の形態になっており、このため、灯具の長さが長くてもホルダー部材3は撓み変形することなくしっかりと保持される。また、補強部材1′は透明であるため光の透過や反射を阻害することはない。補強部材1′な乳白色のような半透明とすることで光に柔らかさを持たせることも可能である。なお、補強部材1′におけるの内向き部1a′の先端はLEDランプ5の側面に当たり得るように設定しており、このため、補強部材1′の正確に位置決めされている。補強部材1′は内向き部1a′を持たない単なる断面円弧状に形成することも可能である。   The holder member 3 and the reinforcing member 1 'are formed in a cylindrical shape as a whole. Therefore, even if the length of the lamp is long, the holder member 3 is firmly held without being deformed. Further, since the reinforcing member 1 'is transparent, it does not hinder light transmission or reflection. By making the reinforcing member 1 'translucent, such as milky white, it is possible to make the light soft. Note that the tip of the inward portion 1a 'of the reinforcing member 1' is set so as to be able to hit the side surface of the LED lamp 5, and therefore the reinforcing member 1 'is accurately positioned. The reinforcing member 1 ′ can be formed in a simple arc shape having no inward portion 1 a ′.
(4).第3実施形態(図9)
図9では第5実施形態を示している。この実施形態では、端部材4は、第1実施形態と殆ど同じ形状のアウターケース19と、アウターケース19の内部にスライド自在に嵌め込まれたインナーケース20とを備えており、インナーケース20にホルダー部材3が嵌まる切欠き16を形成している。また、インナーケース20の内端面とアウターケース19の奥端部との間にばね21を配置しており、ばね21でインナーケース20を内側に付勢している。このため、灯具の長さが長くてホルダー部材3に熱収縮が発生したり加工後さが生じたりしても、ホルダー部材3がガタ付ついたり軸方向に突っ張ったりすることはない。
(4) Third embodiment (FIG. 9)
FIG. 9 shows a fifth embodiment. In this embodiment, the end member 4 includes an outer case 19 having almost the same shape as that of the first embodiment, and an inner case 20 slidably fitted in the outer case 19. A notch 16 into which the member 3 is fitted is formed. A spring 21 is disposed between the inner end surface of the inner case 20 and the inner end surface of the outer case 19, and the inner case 20 is biased inward by the spring 21. For this reason, even if the length of the lamp is long and the holder member 3 undergoes thermal shrinkage or after processing, the holder member 3 will not rattle or stretch in the axial direction.
本実施形態ではアウターケース19とインナーケース20とは自由に相対回転し得る状態に描いているが、インナーケース20における切欠き16の内側面16aの並び方向がピン11の並び方向と同じになるように姿勢保持手段を講じることも可能である。姿勢保持手段としては、スライド自在に嵌まりあう凸状と溝状との嵌め合わせを採用したり、アウターケース19とインナーケース20との嵌合部を断面八角や断面十二角の多角形に形成することなどを採用できる。   In the present embodiment, the outer case 19 and the inner case 20 are drawn so as to be freely rotatable relative to each other, but the arrangement direction of the inner side surfaces 16 a of the notches 16 in the inner case 20 is the same as the arrangement direction of the pins 11. Thus, it is possible to take a posture holding means. As the posture holding means, a fitting of a slidably fitting convex shape and a groove shape is adopted, or the fitting portion of the outer case 19 and the inner case 20 is formed into a polygon having a cross section octagon or a cross section twelve square. It can be adopted to form.
(5).第6実施形態(図10〜図11)
図10〜図11では第6実施形態を示している。図10のうち(A)は一部破断分離図、(B)は(A)のB−B視側面図、(C)は(A)のC−C視図、(D)は(A)のD−D視断面図、図11は図11(D)の XI-XI視断面図である。
(5). Sixth embodiment (FIGS. 10 to 11)
10 to 11 show a sixth embodiment. 10A is a partially broken separated view, FIG. 10B is a side view taken along the line BB in FIG. 10A, FIG. 10C is a view taken along the line CC in FIG. 10A, and FIG. FIG. 11 is a sectional view taken along line XI-XI in FIG. 11D.
この実施形態では、端部材4は第1実施形態の本体ケース9とほぼ共通して形態のアウターケース19と、アウターケース19に内側から嵌まったインナーケース22とで構成されており、インナーケース22に切欠き16を形成している。アウターケース19の内端部には内径が広がった段部23を形成しており、段部23の外周に多数の内向き突起(或いは凹凸)24を形成している一方、インナーケース22にはアウターケース19の段部23に嵌まり込むフランジ部25を形成しており、フランジ部25の外周面に、アウターケース19の内向き突部24と嵌合する多数の溝26を形成している。   In this embodiment, the end member 4 is composed of an outer case 19 that is substantially in common with the main body case 9 of the first embodiment, and an inner case 22 that is fitted into the outer case 19 from the inside. A notch 16 is formed in 22. A step portion 23 having an enlarged inner diameter is formed at the inner end of the outer case 19, and a large number of inward projections (or irregularities) 24 are formed on the outer periphery of the step portion 23, while the inner case 22 has A flange portion 25 that fits into the step portion 23 of the outer case 19 is formed, and a large number of grooves 26 that fit into the inward protruding portions 24 of the outer case 19 are formed on the outer peripheral surface of the flange portion 25. .
この実施形態では、アウターケース19とインナーケース22とはその弾性に抗して相対回転させることができ、その結果、ピン11の並び方向に対する基板2の姿勢を変更して光の照射方向を変更することができる。   In this embodiment, the outer case 19 and the inner case 22 can be rotated relative to each other, and as a result, the posture of the substrate 2 with respect to the arrangement direction of the pins 11 is changed to change the light irradiation direction. can do.
(6).その他
本願発明は、上記の実施形態の他にも様々に具体化できる。例えばホルダー部材は、基板が重なる平板部とこれから筒体の内周面に延びる足部とを有する断面略T型に形成して、平板部の長手両側縁に基板の長手側縁が嵌まる蟻溝部を形成するといったことも可能である。また、端部材は3個以上の部材で構成することも可能である。端部材とホルダー部材との嵌め合わせ形態も、例えば端部材に凹所を形成してこれにホルダー部材の端部を嵌め込むなど、様々の態様を採用できる。
(6). Others The present invention can be embodied in various ways other than the above embodiment. For example, the holder member is formed in a substantially T-shaped cross section having a flat plate portion on which the substrate overlaps and a foot portion extending from the inner peripheral surface of the cylindrical body, and the long side edge of the substrate is fitted to the long side edges of the flat plate portion. It is also possible to form a groove. Further, the end member can be composed of three or more members. Various forms of fitting the end member and the holder member can be employed, for example, forming a recess in the end member and fitting the end of the holder member into the recess.
光源としてはLEDのみならず、有機ELなど非放電式・非白熱式の各種のものを採用できる。敢えて述べるまでもないが、LED等の光源をカラー発光させることも可能である。ホルダー部材に一対の折り返し部を設けている場合、一対の折り返し部のうちいずれか一方又は両方をその付け根個所において屈曲させ得る構成とすることにより、基板をホルダー部材に簡単に抱き込むことも可能である。   As the light source, not only LEDs but also various non-discharge and non-incandescent types such as organic EL can be adopted. Needless to say, it is also possible to cause a light source such as an LED to emit light in color. When the holder member is provided with a pair of folded portions, it is possible to easily hold the substrate in the holder member by adopting a configuration in which one or both of the pair of folded portions can be bent at the base portion. It is.
第1実施形態を示す図で、(A)は灯具の正面図、(B)は分離斜視図である。It is a figure which shows 1st Embodiment, (A) is a front view of a lamp, (B) is a separate perspective view. (A)は部分的な分離正面図、(B)は組み立て後の状態での部分断面図、(C)は(B)のC−C視断面図、(D)は(B)のD−D視断面図である。(A) is a partially separated front view, (B) is a partial cross-sectional view after assembly, (C) is a cross-sectional view taken along the line CC of (B), and (D) is a cross-sectional view taken along the line D- of (B). FIG. 部分的な平断面図である。It is a partial plane sectional view. 図3の IV-IV視断面図である。FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. 基板の取り付け手順を示す図である。It is a figure which shows the attachment procedure of a board | substrate. 第2実施形態を示す図である。It is a figure which shows 2nd Embodiment. 第3実施形態を示す図である。It is a figure which shows 3rd Embodiment. 第4実施形態を示す図である。It is a figure which shows 4th Embodiment. 第5実施形態を示す図である。It is a figure which shows 5th Embodiment. 第6実施形態を示す図で、(A)は一部破断分離図、(B)は(A)のB−B視側面図、(C)は(A)のC−C視図、(D)は(A)のD−D視断面図、(E)は縦断正面図である。It is a figure which shows 6th Embodiment, (A) is a partially broken isolation view, (B) is a BB view side view of (A), (C) is a CC view of (A), (D ) Is a sectional view taken along the line DD of (A), and (E) is a longitudinal front view. 図8(D)の XI-XI視断面図である。It is XI-XI sectional view taken on the line of FIG.
符号の説明Explanation of symbols
1 筒体
2 基板
3 ホルダー部材
4 端部材
5 LEDランプ
8 ヒンジ部
9 端部材を構成する本体ケース
10 口金
11 ピン
19 端部材を構成するアウターケース
20,22 端部材を構成するインナーケース
DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Board | substrate 3 Holder member 4 End member 5 LED lamp 8 Hinge part 9 Main body case which comprises end member 10 Base 11 Pin 19 Outer case 20 which comprises end member 20, 22 Inner case which comprises end member

Claims (5)

  1. 透光性素材から成る両端開口の細長い筒体と、前記筒体の両端に装着した端部材と、前記筒体の内部に配置した細長い基板とを備えており、前記基板の片面を光源配置面としてこれに発光素子方式光源が搭載されている、
    という灯具であって、
    前記筒体の内部には、前記基板を保持するホルダー部材が筒体の長手方向に沿って長く延びるように配置されており、前記ホルダー部材と左右端材とを筒体の軸心回りに相対回転しないように嵌め合わせることにより、前記端部材と基板との相対姿勢を一定に保持している、
    灯具。
    An elongated cylindrical body made of a light-transmitting material and having both end openings; end members attached to both ends of the cylindrical body; and an elongated substrate disposed inside the cylindrical body. As this is equipped with a light-emitting element type light source,
    A lamp that
    Inside the cylindrical body, a holder member for holding the substrate is disposed so as to extend long along the longitudinal direction of the cylindrical body, and the holder member and the left and right end members are relatively arranged around the axis of the cylindrical body. By fitting so as not to rotate, the relative posture between the end member and the substrate is kept constant.
    Light fixture.
  2. 前記両端部材の外端面からはそれぞれ蛍光灯器具本体に嵌め込まれる2本のピンが突出している一方、前記ホルダー部材は、前記基板を光源配置面と反対側の裏面から抱持する断面形状になっており、このため前記ホルダー部材は基板の光源配置面の側に露出した折り返し部を有しており、前記折り返し部を、前記光源から照射された光が筒体の内面に反射して戻ってくると再度筒体の内面に向けて反射させる反射面と成している、
    請求項1に記載した灯具。
    From the outer end surfaces of the both end members, two pins that fit into the fluorescent lamp fixture main body protrude, respectively, while the holder member has a cross-sectional shape that holds the substrate from the back side opposite to the light source arrangement surface. For this reason, the holder member has a folded portion exposed on the light source arrangement surface side of the substrate, and the light irradiated from the light source is reflected by the inner surface of the cylindrical body and returned to the folded portion. When it comes, it is made a reflection surface that reflects toward the inner surface of the cylinder again.
    The lamp according to claim 1.
  3. 前記ホルダー部材は、筒体の内周面に密接又は密着した断面略円弧状の基部を備えており、前記基部において長く延びる長手縁部は基板の光源配置面の側にはみ出しており、前記ホルダー部材における基部の長手縁部に、前記基板の光源配置面に向けて延びる前記折り返し部を一体に設けており、かつ、前記基部のうち周方向に沿った略中間部を薄肉のヒンジ部と成すことにより、一対の折り返し部の間隔が広がるように広げ変形させる得るようになっており、前記ホルダー部材を広げ変形させることにより、基板をその巾方向に移動させてホルダー部材に嵌め入れることが可能ならしめられている、
    請求項2に記載した灯具。
    The holder member includes a base portion having a substantially arc-shaped cross section that is in close contact with or in close contact with the inner peripheral surface of the cylindrical body, and a long edge extending long in the base portion protrudes to the light source arrangement surface side of the substrate. The folded portion extending toward the light source arrangement surface of the substrate is integrally provided at the longitudinal edge of the base portion of the member, and a substantially intermediate portion along the circumferential direction of the base portion is formed as a thin hinge portion. By this, it is possible to expand and deform so that the interval between the pair of folded portions is widened, and by expanding and deforming the holder member, it is possible to move the substrate in the width direction and fit it in the holder member Conditioned
    The lamp according to claim 2.
  4. 前記ホルダー部材は、前記筒体の内周面に密接又は密着する断面円弧状の基部を備えている一方、前記端部材には、前記ホルダー部材の端部が入り込む切欠きが形成されている、
    請求項1〜3のうちのいずれかに記載した灯具。
    The holder member includes a base having an arcuate cross-section that is in close contact with or in close contact with the inner peripheral surface of the cylindrical body, while the end member is formed with a notch into which the end of the holder member enters.
    The lamp according to any one of claims 1 to 3.
  5. 前記ホルダー部材は樹脂製品である一方、
    前記端部材は、筒体に嵌着されたアウターケースと、前記筒体の軸方向にスライドするように前記アウターケースに取り付けられたインナーケースとを備えており、前記インナーケースとホルダー部材とを相対回転不能に嵌合させているとと共に、前記インナーケースはアウターケースの外端面から離れる方向にばねで押されている、
    請求項1〜4のうちのいずれかに記載した灯具。
    While the holder member is a resin product,
    The end member includes an outer case fitted to the cylindrical body, and an inner case attached to the outer case so as to slide in the axial direction of the cylindrical body, and the inner case and the holder member are The inner case is pressed with a spring in a direction away from the outer end surface of the outer case, and is fitted so as not to be relatively rotatable.
    The lamp as described in any one of Claims 1-4.
JP2008302967A 2008-11-27 2008-11-27 Lamp Expired - Fee Related JP5227147B2 (en)

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