JP2013045711A - Lighting fixture - Google Patents

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JP2013045711A
JP2013045711A JP2011183887A JP2011183887A JP2013045711A JP 2013045711 A JP2013045711 A JP 2013045711A JP 2011183887 A JP2011183887 A JP 2011183887A JP 2011183887 A JP2011183887 A JP 2011183887A JP 2013045711 A JP2013045711 A JP 2013045711A
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cover
rotating plate
lighting fixture
lamp
fixture
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Masayuki Ozaki
正幸 尾崎
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture capable of adjustment of an irradiation direction while a prescribed retaining force is maintained without increasing the number of components and a component cost.SOLUTION: A lamp 30 housing an LED unit 34 as a light source is turnably vertically supported by an arm part 26 extending from a rotation plate 25. The rotation plate 25 is rotatably sandwiched between a cylindrical fixture body 20 and a cover 23 mounted on an upper end 201 of the fixture body 20. Then, since convex parts 281, 282 contacting with the fixture body 20 and the cover 23 are arranged on a surface 251 and a backside 252 of the rotation plate 25, an irradiation direction can be adjusted and retained at a prescribed position without providing an additional member.

Description

本発明は、光源を収容する灯具が、器具本体に対して旋回可能および回動可能に設けられている照明器具に関するものである。   The present invention relates to a lighting fixture in which a lamp that houses a light source is provided so as to be rotatable and rotatable with respect to the fixture body.

従来より、光源を収容する灯具が、器具本体に対して旋回可能および回動可能に設けられている照明器具が知られている（例えば、特許文献１参照）。
図６に示すように、特許文献１に記載の照明器具１００は、天井埋込み型照明器具であり、アルミダイカスト製の円筒型の器具本体１０１を有し、器具本体１０１の上面には同じくアルミダイカスト製のトツプカバー１０２が一体的に設けられている。器具本体１０１の下端部には鍔部１０３が設けられており、器具本体１０１の側面には取付金具１０４が設けられている。
従って、鍔部１０３と取付金具１０４によって天井１０５を挟むことにより、器具本体１０１を天井１０５の取付孔１０６に取り付ける。 2. Description of the Related Art Conventionally, there has been known a lighting fixture in which a lamp that houses a light source is provided so as to be rotatable and rotatable with respect to the fixture body (see, for example, Patent Document 1).
As shown in FIG. 6, a lighting fixture 100 described in Patent Document 1 is a ceiling-embedded lighting fixture, and includes a cylindrical fixture body 101 made of aluminum die casting. A top cover 102 made of steel is integrally provided. A flange 103 is provided at the lower end of the instrument body 101, and a mounting bracket 104 is provided on the side surface of the instrument body 101.
Therefore, the fixture body 101 is attached to the attachment hole 106 of the ceiling 105 by sandwiching the ceiling 105 between the flange 103 and the attachment fitting 104.

器具本体１０１内部には、コーン１０７が水平方向へ回転可能に取り付けられている。コーン１０７には、ランプ１０９を収容するランプフード１０８が、首振り自在に取り付けられている。
従って、コーン１０７を水平回転させ、ランプフード１０８を上下に回動させることにより、照明器具１００は所望の方向を照明することができる。 A cone 107 is attached inside the instrument main body 101 so as to be rotatable in the horizontal direction. A lamp hood 108 that houses a lamp 109 is attached to the cone 107 so as to swing freely.
Therefore, the lighting fixture 100 can illuminate a desired direction by horizontally rotating the cone 107 and rotating the lamp hood 108 up and down.

実開平７−１５０５号公報（第１図）Japanese Utility Model Laid-Open No. 7-1505 (FIG. 1)

しかしながら、前述したような従来の照明器具においては、コーン１０７を水平回転させて方向を調整する際に、コーン１０７を自由に回転できるようにすると、振動等で照射方向が変わってしまう。また、完全に固定してしまうと、照射方向の調整ができなくなる。さらに、ばね部材等を用いて回転する力を調整すると、部品点数の増加および部品コストの増加を招くという問題があった。   However, in the conventional lighting apparatus as described above, if the cone 107 can be freely rotated when the cone 107 is horizontally rotated to adjust the direction, the irradiation direction is changed by vibration or the like. Moreover, if it is completely fixed, the irradiation direction cannot be adjusted. Furthermore, when the rotating force is adjusted using a spring member or the like, there is a problem that the number of parts increases and the part cost increases.

本発明は、従来の問題を解決するためになされたもので、部品点数の増加および部品コストの増加を招くことなく、所定の保持力を確保した状態で照射方向の調整が可能な照明器具を提供することを目的とする。   The present invention has been made to solve the conventional problems, and provides a lighting apparatus capable of adjusting the irradiation direction while maintaining a predetermined holding force without causing an increase in the number of parts and an increase in parts cost. The purpose is to provide.

本発明の照明器具は、円筒形の器具本体と、前記器具本体の上端に装着するカバーと、前記器具本体と前記カバーとの間に回転可能に挟まれる回転板と、前記回転板から延びるアーム部に上下方向へ回動可能に支持され光源を収容する灯具と、を有し、前記回転板の表面および裏面に、前記器具本体および前記カバーに接触する凸部を設けたものである。   A lighting fixture according to the present invention includes a cylindrical fixture body, a cover attached to an upper end of the fixture body, a rotating plate that is rotatably sandwiched between the fixture body and the cover, and an arm that extends from the rotating plate. And a lamp that is supported so as to be pivotable in the vertical direction and accommodates a light source, and a convex portion that contacts the instrument body and the cover is provided on the front and back surfaces of the rotating plate.

本発明は、器具本体と器具本体の上端に装着したカバーとの間に、回転可能に挟まれている回転板の表面および裏面に、器具本体およびカバーに接触する凸部を設けたので、回転板から延びるアーム部に取り付けられた灯具を、回転可能かつ一定の保持力で保持できる。このため、別部材を設けることなく、照射方向を調整可能かつ所定位置に保持することができるという効果を有する照明器具を提供できる。   Since the present invention is provided with convex portions that come into contact with the instrument main body and the cover on the front and back surfaces of the rotating plate that is rotatably sandwiched between the instrument main body and the cover attached to the upper end of the instrument main body. The lamp attached to the arm portion extending from the plate can be rotated and held with a constant holding force. For this reason, the lighting fixture which has the effect that an irradiation direction can be adjusted and it can hold | maintain in a predetermined position can be provided, without providing another member.

本発明に係る第１実施形態の照明器具の一部破断の斜視図The partially broken perspective view of the lighting fixture of 1st Embodiment which concerns on this invention 天井に取り付けられた第１実施形態の照明器具の断面図Sectional drawing of the lighting fixture of 1st Embodiment attached to the ceiling （Ａ）は第１実施形態の照明器具における回転板の平面図であり、（Ｂ）は（Ａ）中Ｂ方向から見た側面図(A) is a top view of the rotating plate in the lighting fixture of 1st Embodiment, (B) is the side view seen from B direction in (A) 図２中ＩＶ部の拡大断面図Enlarged cross-sectional view of section IV in FIG. （Ａ）は第２実施形態の照明器具における回転板の平面図であり、（Ｂ）は（Ａ）中Ｂ方向から見た側面図(A) is a top view of the rotating plate in the lighting fixture of 2nd Embodiment, (B) is the side view seen from B direction in (A). 従来のダウンライトの断面図Cross section of conventional downlight

（第１実施形態）
以下、本発明に係る第１実施形態の照明器具について、図面を用いて説明する。
図１および図２に示すように、本発明に係る実施形態の照明器具１０は、天井１１に設けられている取付孔１２に取り付けて、下方および斜め下方を照明するのに用いることができる。 (First embodiment)
Hereinafter, the lighting fixture of 1st Embodiment which concerns on this invention is demonstrated using drawing.
As shown in FIG. 1 and FIG. 2, the luminaire 10 according to the embodiment of the present invention can be attached to a mounting hole 12 provided in a ceiling 11 and used to illuminate downward and obliquely downward.

照明器具１０は、上面および下面が開口（上開口２１、下開口２２）した略円筒形状の器具本体２０を有する。器具本体２０の上側には、上開口２１を覆うカバー２３が装着される。器具本体２０の下端部外側には鍔部２４が張り出して設けられている。
従って、器具本体２０は、鍔部２４を天井１１の下面に当接させて、器具本体２０の外面に設けられている取付金具（図示省略）で天井１１の上面（裏面）を押圧することにより、天井１１の取付孔１２に取り付けられる。 The luminaire 10 has a substantially cylindrical luminaire body 20 whose upper and lower surfaces are open (upper opening 21 and lower opening 22). A cover 23 that covers the upper opening 21 is mounted on the upper side of the instrument body 20. On the outer side of the lower end portion of the instrument body 20, a flange portion 24 is provided so as to protrude.
Therefore, the appliance main body 20 makes the flange portion 24 contact the lower surface of the ceiling 11 and presses the upper surface (rear surface) of the ceiling 11 with a mounting bracket (not shown) provided on the outer surface of the appliance main body 20. It is attached to the attachment hole 12 of the ceiling 11.

器具本体２０とカバー２３との間には、リング状の回転板２５が回転可能に挟まれる。回転板２５には、回転板２５の中心に対して対称位置に、一対のアーム部２６が下方へ突出して設けられている。アーム部２６の先端には、灯具３０が取付ねじ２７により回動可能に取り付けられる。
灯具３０は略円筒形状をしており、高さ方向中央部に底板３１が設けられていて、上部空間３２と下部空間３３とに区分している。底板３１の下面には光源であるＬＥＤユニット３４が取り付けられている。すなわち、ＬＥＤユニット３４は、灯具３０の下部空間３３に収容されている。 A ring-shaped rotating plate 25 is rotatably sandwiched between the instrument main body 20 and the cover 23. The rotating plate 25 is provided with a pair of arm portions 26 projecting downward at symmetrical positions with respect to the center of the rotating plate 25. A lamp 30 is attached to the tip of the arm portion 26 by a mounting screw 27 so as to be rotatable.
The lamp 30 has a substantially cylindrical shape, and is provided with a bottom plate 31 at the center in the height direction, and is divided into an upper space 32 and a lower space 33. An LED unit 34 as a light source is attached to the lower surface of the bottom plate 31. That is, the LED unit 34 is accommodated in the lower space 33 of the lamp 30.

従って、灯具３０は、回転板２５を水平回転（図１中矢印Ａ参照）させることにより水平面内で回転し、アーム部２６の取付ねじ２７を中心として上下方向に回動（図２中矢印Ａ参照）させることにより、所望の方向へ向けることができる。   Accordingly, the lamp 30 rotates in the horizontal plane by horizontally rotating the rotating plate 25 (see arrow A in FIG. 1), and rotates up and down around the mounting screw 27 of the arm portion 26 (arrow A in FIG. 2). By referring to), it can be directed in a desired direction.

図１および図３（Ａ），図３（Ｂ）に示すように、回転板２５の表面２５１および裏面２５２には、所定間隔でそれぞれ凸部２８１、２８２が設けられている。
すなわち、回転板２５の表面２５１には、凸部２８１が所定間隔で設けられ、裏面２５２には、凸部２８２が所定間隔で設けられている。
なお、ここでは、凸部２８１および凸部２８２は、各々全周を４分割する位置に設けられており、各々４個ずつ設けられているが、個数はこれに限るものではない。また、凸部２８２は、回転板２５の周方向において、隣接する凸部２８１の中間位置に設けられている。 As shown in FIGS. 1, 3 (A), and 3 (B), convex portions 281 and 282 are provided on the front surface 251 and the back surface 252 of the rotating plate 25 at predetermined intervals, respectively.
That is, convex portions 281 are provided on the front surface 251 of the rotating plate 25 at a predetermined interval, and convex portions 282 are provided on the back surface 252 at a predetermined interval.
Here, each of the convex portions 281 and the convex portions 282 is provided at a position where the entire circumference is divided into four parts, and four each is provided, but the number is not limited to this. Further, the convex portion 282 is provided at an intermediate position between the adjacent convex portions 281 in the circumferential direction of the rotating plate 25.

図３（Ａ），図３（Ｂ）および図４に示すように、凸部２８１、２８２は、例えば、球面の一部で形成されており、凸部２８１、２８２における板厚Ｄは、例えば、２．２±０．２ｍｍとすることができる。
また、器具本体２０の上面２０１には、全周にわたって突起２９が設けられており、器具本体２０とカバー２３との間に隙間Ｓを形成している。隙間Ｓの大きさは、例えば、２．７±０．２ｍｍとすることができる。 As shown in FIG. 3A, FIG. 3B, and FIG. 4, the convex portions 281 and 282 are formed of, for example, part of a spherical surface, and the plate thickness D of the convex portions 281 and 282 is, for example, 2.2 ± 0.2 mm.
Further, the upper surface 201 of the instrument body 20 is provided with a protrusion 29 over the entire circumference, and a gap S is formed between the instrument body 20 and the cover 23. The size of the gap S can be set to 2.7 ± 0.2 mm, for example.

ここで、隙間Ｓは、凸部２８１、２８２における板厚Ｄよりも大きいが、凸部２８１、２８２は回転板２５の表面２５１および裏面２５２の両方に設けられているので、凸部２８１の頂部から凸部２８２の頂部までの寸法より小さく設定されている。
従って、図４に示すように、回転板２５は、凸部２８１の位置では下側に変形し、凸部２８２の位置では上側に変形する。
これにより、回転板２５は板ばね状に波打っており、凸部２８１をカバー２３に押し付けるとともに、凸部２８２を器具本体２０に押し付ける。これにより、回転板２５は、一定の摩擦力を持って、器具本体２０とカバー２３との間に、回転可能に保持される。 Here, the gap S is larger than the plate thickness D of the convex portions 281 and 282, but the convex portions 281 and 282 are provided on both the front surface 251 and the rear surface 252 of the rotating plate 25. To the top of the convex portion 282.
Therefore, as shown in FIG. 4, the rotating plate 25 is deformed downward at the position of the convex portion 281 and deformed upward at the position of the convex portion 282.
As a result, the rotating plate 25 is waved like a leaf spring, pressing the convex portion 281 against the cover 23 and pressing the convex portion 282 against the instrument body 20. Thereby, the rotating plate 25 is rotatably held between the instrument body 20 and the cover 23 with a certain frictional force.

以上、説明した本発明に係る第１実施形態の照明器具１０によれば、ＬＥＤユニット３４を収容した灯具３０は、回転板２５から延びるアーム部２６に、上下方向へ回動可能に支持される。回転板２５は、円筒形の器具本体２０と器具本体２０の上端に装着したカバー２３との間に、回転可能に挟まれている。
そして、回転板２５の表面２５１および裏面２５２に、器具本体２０およびカバー２３に接触する凸部２８１、２８２を設けたので、別部品を設けることなく、照射方向を調整可能かつ所定位置に保持することができる。これにより、部品点数の増加および部品コストの増加を回避できる。 As mentioned above, according to the lighting fixture 10 of 1st Embodiment which concerns on this invention demonstrated, the lamp 30 which accommodated the LED unit 34 is supported by the arm part 26 extended from the rotating plate 25 so that rotation to an up-down direction is possible. . The rotating plate 25 is rotatably sandwiched between a cylindrical instrument body 20 and a cover 23 attached to the upper end of the instrument body 20.
And since the convex parts 281 and 282 which contact the instrument main body 20 and the cover 23 were provided in the surface 251 and the back surface 252 of the rotating plate 25, an irradiation direction can be adjusted and it hold | maintains in a predetermined position, without providing another component. be able to. Thereby, an increase in the number of parts and an increase in parts cost can be avoided.

（第２実施形態）
次に、本発明に係る第２実施形態の照明器具について説明する。
なお、前述した第１実施形態に係る照明器具１０と共通する部位には同じ符号を付して、重複する説明を省略することとする。 (Second Embodiment)
Next, the lighting fixture of 2nd Embodiment which concerns on this invention is demonstrated.
In addition, the same code | symbol is attached | subjected to the site | part which is common in the lighting fixture 10 which concerns on 1st Embodiment mentioned above, and the overlapping description is abbreviate | omitted.

図５（Ａ），図５（Ｂ）に示すように、第２実施形態の照明器具１０Ｂでは、回転板２５Ｂは、周方向に沿って上下に波形２８Ｂが形成されている。
波形２８Ｂは、上側に突出する上波部２８１Ｂと、下側に突出する下波部２８２Ｂとが、周方向に所定間隔で交互に形成されている。ここでは、上波部２８１Ｂおよび下波部２８２Ｂが、各々８個ずつ設けられており、下波部２８２Ｂは隣接する上波部２８１Ｂの中間位置に設けられている。なお、上波部２８１Ｂおよび下波部２８２Ｂの数は、限定するものではない。 As shown in FIGS. 5 (A) and 5 (B), in the luminaire 10B of the second embodiment, the rotating plate 25B has a waveform 28B formed vertically along the circumferential direction.
In the waveform 28B, an upper wave portion 281B protruding upward and a lower wave portion 282B protruding downward are alternately formed at predetermined intervals in the circumferential direction. Here, eight upper wave portions 281B and eight lower wave portions 282B are provided, and the lower wave portions 282B are provided at intermediate positions between adjacent upper wave portions 281B. In addition, the number of the upper wave part 281B and the lower wave part 282B is not limited.

また、図５（Ｂ）に示すように、上波部２８１Ｂの頂部から下波部２８２Ｂの頂部までの板厚ＤＢは、突起２９の隙間Ｓ（図４参照）よりも大きめとなっている。
これにより、上波部２８１Ｂはカバー２３を押圧し、下波部２８２Ｂは器具本体２０の上面２０１を押圧して、回転抵抗を発生する。 Further, as shown in FIG. 5B, the plate thickness DB from the top of the upper wave portion 281B to the top of the lower wave portion 282B is larger than the gap S (see FIG. 4) of the protrusion 29.
Thereby, the upper wave part 281B presses the cover 23, and the lower wave part 282B presses the upper surface 201 of the instrument main body 20, and generates rotation resistance.

以上、説明した本発明に係る第２実施形態の照明器具１０Ｂによれば、前述した第１実施形態の照明器具１０と同様の作用および効果を得ることができる。   As mentioned above, according to the lighting fixture 10B of 2nd Embodiment which concerns on this invention demonstrated, the effect | action and effect similar to the lighting fixture 10 of 1st Embodiment mentioned above can be acquired.

なお、本発明の照明器具は、前述した各実施形態に限定されるものでなく、適宜な変形，改良等が可能である。
すなわち、前述した各実施形態においては、凸部２８１、２８２および波形２８Ｂを、回転板２５の表裏両面に設けた場合を例示したが、回転板２５の表裏いずれかの面のみに凸部２８１、２８２および波形２８Ｂを設けることも可能である。 In addition, the lighting fixture of this invention is not limited to each embodiment mentioned above, A suitable deformation | transformation, improvement, etc. are possible.
That is, in each of the embodiments described above, the case where the convex portions 281 and 282 and the waveform 28B are provided on both the front and back surfaces of the rotating plate 25 is exemplified. It is also possible to provide 282 and waveform 28B.

１０、１０Ｂ 照明器具
２０ 器具本体
２０１ 上面（上端）
２３ カバー
２５、２５Ｂ 回転板
２５１、２５１Ｂ 表面
２５２、２５２Ｂ 裏面
２６ アーム部
２８１、２８２ 凸部
２８１Ｂ 上波部（凸部）
２８２Ｂ 下波部（凸部）
３０ 灯具
３４ ＬＥＤユニット（光源） 10, 10B Lighting fixture 20 Appliance body 201 Upper surface (upper end)
23 Cover 25, 25B Rotating plate 251, 251B Front 252, 252B Back 26 Arm part 281, 282 Convex part 281B Upper wave part (convex part)
282B Down wave part (convex part)
30 Lamp 34 LED unit (light source)

Claims (1)

円筒形の器具本体と、
前記器具本体の上端に装着するカバーと、
前記器具本体と前記カバーとの間に回転可能に挟まれる回転板と、
前記回転板から延びるアーム部に上下方向へ回動可能に支持され光源を収容する灯具と、を有し、
前記回転板の表面および裏面に、前記器具本体および前記カバーに接触する凸部を設けた照明器具。 A cylindrical instrument body;
A cover attached to the upper end of the instrument body;
A rotating plate that is rotatably sandwiched between the instrument body and the cover;
A lamp that is supported by the arm portion extending from the rotating plate so as to be pivotable in the vertical direction and accommodates a light source;
The lighting fixture which provided the convex part which contacts the said instrument main body and the said cover in the surface and back surface of the said rotating plate.
JP2011183887A 2011-08-25 2011-08-25 Lighting fixture Pending JP2013045711A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014203549A (en) * 2013-04-01 2014-10-27 パナソニック株式会社 Lighting fixture
JP2014232657A (en) * 2013-05-29 2014-12-11 パナソニック株式会社 Down light
WO2019194171A1 (en) * 2018-04-03 2019-10-10 国立大学法人京都大学 Support structure for medical projector

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Publication number Priority date Publication date Assignee Title
JPS5956307A (en) * 1982-09-24 1984-03-31 東芝ライテック株式会社 Illuminator
JPH08329714A (en) * 1995-05-31 1996-12-13 Matsushita Electric Works Ltd Luminaire
JP2009176594A (en) * 2008-01-25 2009-08-06 Panasonic Electric Works Co Ltd Luminaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5956307A (en) * 1982-09-24 1984-03-31 東芝ライテック株式会社 Illuminator
JPH08329714A (en) * 1995-05-31 1996-12-13 Matsushita Electric Works Ltd Luminaire
JP2009176594A (en) * 2008-01-25 2009-08-06 Panasonic Electric Works Co Ltd Luminaire

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014203549A (en) * 2013-04-01 2014-10-27 パナソニック株式会社 Lighting fixture
JP2014232657A (en) * 2013-05-29 2014-12-11 パナソニック株式会社 Down light
WO2019194171A1 (en) * 2018-04-03 2019-10-10 国立大学法人京都大学 Support structure for medical projector
JPWO2019194171A1 (en) * 2018-04-03 2021-05-13 国立大学法人京都大学 Support structure for medical projector
JP7239942B2 (en) 2018-04-03 2023-03-15 国立大学法人京都大学 Support structure for medical projectors

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