JP5080957B2

JP5080957B2 - Discharge lamp lighting device and lighting apparatus using the same

Info

Publication number: JP5080957B2
Application number: JP2007329227A
Authority: JP
Inventors: 秀雄大谷
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2007-12-20
Filing date: 2007-12-20
Publication date: 2012-11-21
Anticipated expiration: 2027-12-20
Also published as: JP2009152082A

Description

本発明は、放電灯点灯装置及びそれを用いた照明器具に関する。 The present invention relates to a discharge lamp lighting device and a lighting fixture using the same.

従来から、塵埃や水滴から保護するために、プリント配線板が載置されるケース本体と、プリント配線板を覆うようにケース本体に取り付けられるケース蓋とから構成されるケースを備えた放電灯点灯装置が提供されている（例えば、特許文献１参照）。以下、上記のようなケースを備えた放電灯点灯装置の従来例を図面を用いて説明する。この従来例は、図２３（ａ）〜（ｃ）に示すように、放電灯（図示せず）へ点灯電力を供給する点灯回路の構成部品（図示せず）が実装される略矩形状のプリント配線板１００と、ケースを構成する金属製のケース本体１０１及びケース蓋１０２と、プリント配線板１００に実装された部品を保護するためのハウジング１０３と、プリント配線板１００を保護するための絶縁基台１０４と、プリント配線板１００に設けられて商用電源との接続等に用いられる一乃至複数（図示では２つ）の端子１０５とから成る。 Conventionally, to protect against dust and water droplets, a discharge lamp with a case composed of a case body on which the printed wiring board is placed and a case lid attached to the case body so as to cover the printed wiring board An apparatus is provided (see, for example, Patent Document 1). Hereinafter, a conventional example of a discharge lamp lighting device having the above case will be described with reference to the drawings. As shown in FIGS. 23A to 23C, this conventional example has a substantially rectangular shape on which components of a lighting circuit (not shown) for supplying lighting power to a discharge lamp (not shown) are mounted. Printed wiring board 100, metal case main body 101 and case lid 102 constituting the case, housing 103 for protecting components mounted on printed wiring board 100, and insulation for protecting printed wiring board 100 It comprises a base 104 and one or more (two in the figure) terminals 105 provided on the printed wiring board 100 and used for connection to a commercial power source.

ケース本体１０１は、断面略コ字状に形成され、その内底部に絶縁基台１０４及びプリント配線板１００が載置される。また、ケース本体１０１の長手方向に沿った両側縁からそれぞれ立設する一対の立壁１０１ａの図２３（ａ）における上端縁には、それぞれ後述するケース蓋１０２の突起片１０２ａが嵌合する一対の略Ｌ字状の切り欠き１０１ｂが所定の間隔を空けて設けられている。尚、該切り欠き１０１ｂには、図２３（ｂ）に示すように、後述する突起片１０２ａの取付孔１０２ｂに嵌合する略半円環状の突部１０１ｃが設けられている。 The case main body 101 is formed in a substantially U-shaped cross section, and the insulating base 104 and the printed wiring board 100 are placed on the inner bottom thereof. Further, a pair of standing walls 101a erected from both side edges along the longitudinal direction of the case main body 101 are paired with upper end edges in FIG. A substantially L-shaped notch 101b is provided at a predetermined interval. As shown in FIG. 23B, the notch 101b is provided with a substantially semi-annular protrusion 101c that fits into a mounting hole 102b of a protrusion piece 102a described later.

ケース蓋１０２は、平板状に形成されており、その長手方向に沿った両側縁には、図２３（ｂ）に示すように、それぞれ一対の略矩形状の突起片１０２ａが所定の間隔を空けて突設されている。また、突起片１０２ａには、切り欠き１０１ｂの突部１０１ｃが嵌合する略円形状の取付孔１０２ｂが貫設されている。 The case lid 102 is formed in a flat plate shape, and as shown in FIG. 23B, a pair of substantially rectangular projection pieces 102a are spaced at predetermined intervals on both side edges along the longitudinal direction. Projecting. Further, a substantially circular mounting hole 102b into which the protruding portion 101c of the notch 101b is fitted is provided in the protruding piece 102a.

而して、図２３（ｂ）に示すように、ケース蓋１０２の突起片１０２ａを矢印ア方向に移動させてケース本体１０１の切り欠き１０１ｂ内に合わせ、矢印イ方向に水平移動させて取付孔１０２ｂに突部１０１ｃを嵌合させることでケース本体１０１とケース蓋１０２とが結合される（図２３（ｃ）参照）。
実用新案登録第２６０１０５１号公報 Thus, as shown in FIG. 23 (b), the protruding piece 102a of the case lid 102 is moved in the direction of the arrow A so as to align with the notch 101b of the case main body 101, and is horizontally moved in the direction of the arrow A to attach the mounting hole The case main body 101 and the case lid 102 are coupled by fitting the protrusion 101c to 102b (see FIG. 23C).
Utility Model Registration No. 2601051

しかしながら、上記従来例では、ケース本体１０１とアースとを接続した際に、上記のようにケース本体１０１とケース蓋１０２とを結合することでケース蓋１０２もアースと接続することができるが、切り欠き１０１ｂにおいて突起片１０２ａと嵌合する部位の厚み寸法が突起片１０２ａの厚み寸法よりも大きい場合には、取付孔１０２ｂと突部１０１ｃとの嵌合状態が不安定となるためにケース蓋１０２をアースと確実に接続することができない虞があった。 However, in the above conventional example, when the case main body 101 and the ground are connected, the case cover 102 can be connected to the ground by combining the case main body 101 and the case cover 102 as described above. When the thickness dimension of the portion of the notch 101b that fits with the protruding piece 102a is larger than the thickness dimension of the protruding piece 102a, the fitting state between the mounting hole 102b and the protruding portion 101c becomes unstable, and the case lid 102 May not be securely connected to ground.

本発明は、上記の点に鑑みて為されたもので、ケース本体とケース蓋との電気的接続を確実に行うことのできる放電灯点灯装置及びそれを用いた照明器具を提供することを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to provide a discharge lamp lighting device capable of reliably performing electrical connection between a case body and a case lid and a lighting fixture using the same. And

請求項１の発明は、上記目的を達成するために、放電灯の点灯に必要な電力を供給する点灯回路の構成部品が実装される略矩形状のプリント配線板と、プリント配線板を収納するケースとを備え、ケースは、プリント配線板の厚み方向においてプリント配線板に対向する略矩形状の主板及び主板の長手方向に沿った両側縁からプリント配線板の厚み方向に立設する一対の脚片から断面略コ字状に形成される金属製のケース本体と、プリント配線板の厚み方向においてプリント配線板に対向する略矩形状の天板及び天板の長手方向に沿った両側縁から前記脚片を覆うように主板に向かって垂直に延設された一対の第１の側片及び天板の短手方向に沿った両側縁から前記第１の側片と直交し且つ主板に向かって垂直に延設された一対の第２の側片から断面略コ字状に形成される金属製のケース蓋と、プリント配線板を覆うようにしてケース蓋をケース本体に取り付けるための取付手段とから構成された放電灯点灯装置であって、取付手段は、脚片に設けられて第１の側片に対向して突出する一乃至複数の第１の突起片と、ケース蓋の第２の側片に設けられて脚片に対向して突出する一乃至複数の第２の突起片とから成り、第１の突起片と第２の突起片とが互いに係合することでケース本体とケース蓋とが互いに取り付けられ、第１の突起片及び第２の突起片は、少なくとも何れか一方が弾性を有し、係合時において前記弾性を有する突起片が弾性力によって対向する何れかの部位に圧接されることを特徴とする。 In order to achieve the above object, the invention of claim 1 houses a substantially rectangular printed wiring board on which components of a lighting circuit for supplying power necessary for lighting a discharge lamp are mounted, and the printed wiring board. And a pair of legs erected in the thickness direction of the printed wiring board from both side edges along the longitudinal direction of the main board and the substantially rectangular main board facing the printed wiring board in the thickness direction of the printed wiring board. From the metal case main body formed in a substantially U-shaped cross section from one piece, the substantially rectangular top plate facing the printed wiring board in the thickness direction of the printed wiring board, and the side edges along the longitudinal direction of the top board A pair of first side pieces extending vertically toward the main plate so as to cover the leg pieces and both side edges along the short direction of the top plate are orthogonal to the first side pieces and toward the main plate. A pair of second side pieces extending vertically A discharge lamp lighting device comprising a metal case lid formed in a substantially U-shaped cross section and an attachment means for attaching the case lid to the case body so as to cover the printed wiring board. The means is provided on the leg piece and protrudes to face the first side piece. The first protrusion piece is provided on the second side piece of the case lid and protrudes to face the leg piece. The case main body and the case lid are attached to each other by engaging the first projection piece and the second projection piece with each other, and the first projection piece and At least one of the second projecting pieces has elasticity, and when engaged, the projecting pieces having elasticity are pressed into contact with each other by elastic force.

請求項２の発明は、請求項１の発明において、第１の突起片及び第２の突起片の少なくとも何れか一方は、丸みを帯びて形成されることを特徴とする。 The invention of claim 2 is characterized in that, in the invention of claim 1 , at least one of the first projecting piece and the second projecting piece is rounded.

請求項３の発明は、器具本体と、器具本体に取り付けられて放電灯が着脱自在に装着されるソケットと、ソケットを介して放電灯に電力を供給する請求項１又は２に記載の放電灯点灯装置とを備えたことを特徴とする。 The invention according to claim 3 is an appliance main body, a socket attached to the appliance main body to which the discharge lamp is detachably mounted, and a discharge lamp according to claim 1 or 2 , wherein electric power is supplied to the discharge lamp via the socket. And a lighting device.

請求項１の発明によれば、第１の突起片及び第２の突起片の少なくとも何れか一方が、弾性力によって対向する何れかの部位に圧接されるので、金属製のケース本体とケース蓋とが弾性を有する突起片を介して密着するため、ケース本体とケース蓋との電気的接続を確実に行うことができる。 According to the first aspect of the present invention, at least one of the first projecting piece and the second projecting piece is brought into pressure contact with any portion facing each other by elastic force, so that the metal case main body and the case lid Are closely attached via an elastic protruding piece, so that the electrical connection between the case body and the case lid can be reliably performed.

請求項２の発明によれば、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋をケース本体に取り付ける際の作業の安全性を高めることができる。 According to invention of Claim 2 , compared with the case where each protrusion piece is formed in the sharp shape, the safety | security of the operation | work at the time of attaching a case cover to a case main body can be improved.

請求項３の発明によれば、請求項１又は２の効果を奏する照明器具を実現することができる。
According to invention of Claim 3, the lighting fixture which has the effect of Claim 1 or 2 is realizable.

以下、本発明に係る放電灯点灯装置の実施形態、及び照明器具の実施形態について説明する。尚、実施形態１〜２１の説明においては、図１（ａ）における上下左右を上下左右方向、紙面手前側を前方向、紙面奥側を後方向と定めるものとする。 Hereinafter, an embodiment of a discharge lamp lighting device and an embodiment of a lighting fixture according to the present invention will be described. In the description of Embodiments 1 to 21, the top, bottom, left, and right in FIG.

（実施形態１）
以下、本発明に係る放電灯点灯装置の実施形態１について図面を用いて説明する。本実施形態は、図１（ａ）〜（ｃ）に示すように、放電灯（図示せず）に点灯に必要な点灯電力を供給する点灯回路の構成部品（図示せず）が実装される略矩形状のプリント配線板１と、プリント配線板１を収納するケースとから成り、ケースは、プリント配線板１が載置される金属製のケース本体２と、前記プリント配線板１を覆うようにケース本体２に取り付けられる金属製のケース蓋３とから構成される。 (Embodiment 1)
Hereinafter, Embodiment 1 of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. In this embodiment, as shown in FIGS. 1A to 1C, a component (not shown) of a lighting circuit that supplies lighting power necessary for lighting to a discharge lamp (not shown) is mounted. The printed wiring board 1 includes a substantially rectangular printed wiring board 1 and a case that houses the printed wiring board 1. The case covers the metal case main body 2 on which the printed wiring board 1 is placed and the printed wiring board 1. And a metal case lid 3 attached to the case body 2.

尚、ケース蓋３はプリント配線板１全体を覆うわけではなく、図１（ｃ）に示すように、プリント配線板１の前端部においては、商用電源と点灯回路との接続及び他の放電灯点灯装置との接続を行う電源用端子１０が外部に露出している。尚、電源用端子１０の他にも、放電灯の調光を行なうための調光信号の受信及び他の放電灯点灯装置への調光信号を伝送するための信号線が接続される調光信号用端子や、点灯回路からソケット（図示せず）を介して放電灯へ点灯電力を供給するための給電線が接続される放電灯用端子が設けられているが、ここでは図示を省略する。 Note that the case lid 3 does not cover the entire printed wiring board 1. As shown in FIG. 1C, the front end of the printed wiring board 1 connects the commercial power source to the lighting circuit and other discharge lamps. The power supply terminal 10 for connecting to the lighting device is exposed to the outside. In addition to the power supply terminal 10, dimming to which a signal line for receiving a dimming signal for dimming the discharge lamp and transmitting a dimming signal to another discharge lamp lighting device is connected. There are provided a signal terminal and a discharge lamp terminal to which a power supply line for supplying lighting power from the lighting circuit to the discharge lamp through a socket (not shown) is connected. .

ケース本体２は、図１（ａ）に示すように断面略コ字状に形成され、上下方向においてプリント配線板１に対向する略矩形状の主板２０と、主板２０の長手方向に沿った両側縁から上方向に立設された一対の脚片２１とから成る。主板２０の四隅には、それぞれプリント配線板１の角部が載置される支持台２０ａ（図示では２つ）が設けられている。また、各脚片２１の長手方向の両端部には、図１（ａ）に示すように、後述するケース蓋３の第１の側片３１に対向して突出する略矩形状の第１の突起片４がそれぞれ切り起こして形成されている（ケース本体２の前側についてのみ図示し、ケース本体２の後側については図示を省略する）。尚、第１の突起片４は、図１（ａ）に示すように、上から下に向かうに従って脚片２１から離れる方向に傾斜している。 As shown in FIG. 1A, the case main body 2 is formed in a substantially U-shaped cross section, and has a substantially rectangular main plate 20 facing the printed wiring board 1 in the vertical direction, and both sides along the longitudinal direction of the main plate 20 It consists of a pair of leg pieces 21 erected upward from the edge. At the four corners of the main board 20, support tables 20a (two in the figure) on which the corners of the printed wiring board 1 are placed are provided. Further, as shown in FIG. 1A, at both ends of each leg piece 21 in the longitudinal direction, a substantially rectangular first projecting to face a first side piece 31 of the case lid 3 to be described later. Each of the protruding pieces 4 is formed by cutting and raising (only the front side of the case body 2 is illustrated, and the rear side of the case body 2 is not illustrated). In addition, the 1st protrusion piece 4 inclines in the direction which leaves | separates from the leg piece 21 as it goes to the bottom from the top, as shown to Fig.1 (a).

ケース蓋３は、図１（ａ）に示すように断面略コ字状に形成され、上下方向においてプリント配線板１に対向する略矩形状の天板３０と、天板３０の長手方向に沿った両側縁から脚片２１を覆うように主板３０に向かって垂直に延設された一対の第１の側片３１と、天板３０の短手方向に沿った両側縁から第１の側片３１と直交し且つ主板３０に向かって垂直に延設された一対の第２の側片３２とから成る。尚、第１の側片３１の短手方向に沿った両側縁及び第２の側片３２の短手方向に沿った両側縁は互いに一体に連結されずに所定長さだけ離間しており、ケース本体２にケース蓋３を取り付ける際に、この第１の側片３１と第２の側片３２との間にケース本体２の脚片２１が挿入される。第１の側片３１の長手方向の両端部には、図１（ａ）に示すように、ケース本体２の脚片２１に対向して突出する略矩形状の第２の突起片５がそれぞれ切り起こして形成されている（ケース蓋３の前側についてのみ図示し、ケース蓋３の後側については図示を省略する）。尚、第２の突起片５は、図１（ａ）に示すように、下から上に向かうに従って第１の側片３１から離れる方向に傾斜している。 The case lid 3 is formed in a substantially U-shaped cross section as shown in FIG. 1A, and has a substantially rectangular top plate 30 facing the printed wiring board 1 in the vertical direction, and along the longitudinal direction of the top plate 30. A pair of first side pieces 31 extending perpendicularly toward the main plate 30 so as to cover the leg pieces 21 from both side edges, and first side pieces from both side edges along the short direction of the top plate 30 And a pair of second side pieces 32 extending perpendicularly to the main plate 30 and perpendicular to the main plate 30. The both side edges along the short direction of the first side piece 31 and the both side edges along the short direction of the second side piece 32 are not integrally connected to each other and are separated by a predetermined length, When attaching the case lid 3 to the case body 2, the leg pieces 21 of the case body 2 are inserted between the first side piece 31 and the second side piece 32. At both ends in the longitudinal direction of the first side piece 31, as shown in FIG. 1A, a substantially rectangular second protrusion piece 5 that protrudes opposite to the leg piece 21 of the case body 2 is provided. It is formed by cutting and raising (only the front side of the case lid 3 is shown, and the rear side of the case lid 3 is not shown). In addition, the 2nd protrusion piece 5 inclines in the direction which leaves | separates from the 1st side piece 31 as it goes up from the bottom, as shown to Fig.1 (a).

第１の突起片４及び第２の突起片５は、互いに係合することでケース本体２にケース蓋３を取り付けるための取付手段を構成している。また、何れの突起片も弾性を有しており、撓み自在となっている。 The first projecting piece 4 and the second projecting piece 5 constitute an attaching means for attaching the case lid 3 to the case body 2 by engaging with each other. In addition, any of the protruding pieces has elasticity and can be freely bent.

以下、ケース本体２にケース蓋３を取り付ける取付方法について説明する。先ず、第１の側片３１と第２の側片３２との間にケース本体２の脚片２１を挿入するようにケース蓋３をケース本体２の上方から下げることで、第１の突起片４の上側の傾斜面と第２の突起片５の下側の傾斜面とを当接させる。この状態から更にケース本体２を下方向に押し込むと、各突起片が撓み、第２の突起片５が第１の突起片４の上側の傾斜面に案内されて第１の突起片４を乗り越える。その後、各突起片が復帰することで第１の突起片４と第２の突起片５とが互いに係合し、ケース本体２にケース蓋３が取り付けられる（図１（ａ）参照）。 Hereinafter, an attachment method for attaching the case lid 3 to the case body 2 will be described. First, the first protrusion piece is formed by lowering the case lid 3 from above the case body 2 so that the leg piece 21 of the case body 2 is inserted between the first side piece 31 and the second side piece 32. The upper inclined surface of 4 and the lower inclined surface of the second projecting piece 5 are brought into contact with each other. When the case main body 2 is further pushed downward from this state, each projection piece bends, and the second projection piece 5 is guided by the upper inclined surface of the first projection piece 4 and gets over the first projection piece 4. . Thereafter, each projection piece is restored, whereby the first projection piece 4 and the second projection piece 5 are engaged with each other, and the case lid 3 is attached to the case main body 2 (see FIG. 1A).

ここで、本実施形態では、図１（ａ）に示すように、各脚片２１に設けられた第１の突起片４の端部間の距離Ｌ１が、各第１の側片３１の内壁間の距離Ｌ２よりも大きくなるように寸法を設定している。したがって、第１の突起片４と第２の突起片５とが係合している状態において、第１の突起片４が第１の側片３１の内壁に押され、第１の突起片４が復帰しようとする弾性力によって第１の側片３１の内壁に圧接され、ケース本体２とケース蓋３とが第１の突起片４を介して密着する。 Here, in the present embodiment, as shown in FIG. 1A, the distance L1 between the end portions of the first projection pieces 4 provided on each leg piece 21 is the inner wall of each first side piece 31. The dimensions are set so as to be larger than the distance L2. Therefore, in a state where the first projecting piece 4 and the second projecting piece 5 are engaged, the first projecting piece 4 is pushed against the inner wall of the first side piece 31, and the first projecting piece 4. Is brought into pressure contact with the inner wall of the first side piece 31 by the elastic force to be restored, and the case main body 2 and the case lid 3 are brought into close contact with each other through the first protruding piece 4.

また、本実施形態では、図１（ａ）に示すように、各第１の側片３１に設けられた第２の突起片５の端部間の距離Ｌ３が、各脚片２１の外壁間の距離Ｌ４よりも小さくなるように寸法を設定している。したがって、第１の突起片４と第２の突起片５とが係合している状態において、第２の突起片５が脚片２１の外壁に押され、第２の突起片５が復帰しようとする弾性力によって脚片２１の外壁に圧接され、ケース本体２とケース蓋３とが第２の突起片５を介して密着する。 Moreover, in this embodiment, as shown to Fig.1 (a), the distance L3 between the edge parts of the 2nd protrusion piece 5 provided in each 1st side piece 31 is between the outer walls of each leg piece 21. As shown in FIG. The dimension is set to be smaller than the distance L4. Therefore, in a state where the first protruding piece 4 and the second protruding piece 5 are engaged, the second protruding piece 5 is pushed against the outer wall of the leg piece 21, and the second protruding piece 5 is to be restored. The case main body 2 and the case lid 3 are brought into close contact with each other via the second projecting piece 5.

上述のように、金属製のケース本体２とケース蓋３とが第１の突起片４及び第２の突起片５を介して互いに密着するので、ケース本体２とケース蓋３との電気的接続を確実に行うことができる。また、第１の突起片４及び第２の突起片５は、上述のようにケース本体２にケース蓋３を取り付ける手段と、ケース本体２とケース蓋３とを電気的に接続する手段との両方を兼ね備えているので、各手段毎に部品を設ける必要が無く、ケースの製造コスト及び工程数を抑えることができる。 As described above, the metal case main body 2 and the case lid 3 are in close contact with each other via the first protruding piece 4 and the second protruding piece 5, so that the electrical connection between the case main body 2 and the case lid 3 is performed. Can be performed reliably. Further, the first projecting piece 4 and the second projecting piece 5 include means for attaching the case lid 3 to the case body 2 as described above, and means for electrically connecting the case body 2 and the case lid 3. Since both are combined, there is no need to provide parts for each means, and the manufacturing cost and the number of steps of the case can be suppressed.

尚、本実施形態では、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第１の突起片４の端部が第２の突起片５と第１の側片３１との間に潜り込むとともに、第２の突起片５の端部が第１の突起片４と脚片２１との間に潜り込むために、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 In the present embodiment, when the case lid 3 is moved away from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the first projection The end of the piece 4 sinks between the second protruding piece 5 and the first side piece 31, and the end of the second protruding piece 5 is between the first protruding piece 4 and the leg piece 21. In order to sink, each projection piece cannot get over the other projection piece, and the engagement state between the first projection piece 4 and the second projection piece 5 cannot be easily released.

（実施形態２）
以下、本発明に係る放電灯点灯装置の実施形態２について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１と異なっており、図２（ａ）〜（ｃ）に示すように、外側に膨らむように湾曲して形成されている。 (Embodiment 2)
Hereinafter, Embodiment 2 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the description of the common parts is omitted. In the present embodiment, the shape of the first protruding piece 4 is different from that of the first embodiment, and as shown in FIGS. 2A to 2C, the first protruding piece 4 is formed to be curved so as to bulge outward.

而して、実施形態１と同様の効果を奏することができる。尚、本実施形態では、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第１の突起片４の端部が第２の突起片５と第１の側片３１との間に潜り込むとともに、第２の突起片５の端部が第１の突起片４と脚片２１との間に潜り込むために、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 Thus, the same effects as those of the first embodiment can be obtained. In the present embodiment, when the case lid 3 is moved away from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the first projection The end of the piece 4 sinks between the second protruding piece 5 and the first side piece 31, and the end of the second protruding piece 5 is between the first protruding piece 4 and the leg piece 21. In order to sink, each projection piece cannot get over the other projection piece, and the engagement state between the first projection piece 4 and the second projection piece 5 cannot be easily released.

（実施形態３）
以下、本発明に係る放電灯点灯装置の実施形態３について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１と異なっており、図３（ａ）〜（ｃ）に示すように、断面略半円環状に切り起こして形成されている。 (Embodiment 3)
Hereinafter, Embodiment 3 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the description of the common parts is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the first embodiment, and as shown in FIGS. 3A to 3C, the first projecting piece 4 is formed by cutting and raising in a substantially semicircular cross section.

而して、実施形態１と同様の効果を奏することができるとともに、第１の突起片４が断面略半円環状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the first embodiment can be obtained, and the first projection piece 4 is formed in a substantially semicircular cross section, that is, rounded. Compared with the case where the piece is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be enhanced.

尚、本実施形態では、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第２の突起片５の端部が第１の突起片４に当接してそれ以上の移動が規制されるので、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 In the present embodiment, when the first lid piece 4 and the second projection piece 5 are engaged with each other, when the case lid 3 is moved away from the case body 2, the second projection Since the end of the piece 5 abuts on the first protruding piece 4 and further movement is restricted, each protruding piece cannot get over the other protruding piece, and the first protruding piece 4 and the second protruding piece 2 The engagement state with the protruding piece 5 cannot be easily released.

（実施形態４）
以下、本発明に係る放電灯点灯装置の実施形態４について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１と共通であるので、共通する部位については説明を省略する。本実施形態では、第２の突起片５の形状が実施形態１と異なっており、図４（ａ）〜（ｃ）に示すように、断面略半円環状に切り起こして形成されている。 (Embodiment 4)
Hereinafter, Embodiment 4 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the description of the common parts is omitted. In the present embodiment, the shape of the second projecting piece 5 is different from that of the first embodiment, and as shown in FIGS.

而して、実施形態１と同様の効果を奏することができるとともに、第２の突起片５が断面略半円環状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effect as in the first embodiment can be obtained, and the second protrusion piece 5 is formed in a substantially semicircular cross section, that is, is formed rounded. Compared with the case where the piece is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be enhanced.

尚、本実施形態では、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第１の突起片４の端部が第２の突起片５に当接してそれ以上の移動が規制されるので、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 In the present embodiment, when the case lid 3 is moved away from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the first projection Since the end of the piece 4 abuts against the second protruding piece 5 and further movement is restricted, each protruding piece cannot get over the other protruding piece, and the first protruding piece 4 and the second protruding piece The engagement state with the protruding piece 5 cannot be easily released.

（実施形態５）
以下、本発明に係る放電灯点灯装置の実施形態５について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４及び第２の突起片５の形状が実施形態１と異なっており、図５（ａ）〜（ｃ）に示すように、第１の突起片４が断面略半円環状に切り起こして形成されるとともに、第２の突起片５が断面略半円環状に切り起こして形成されている。 (Embodiment 5)
Hereinafter, Embodiment 5 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the description of the common parts is omitted. In this embodiment, the shape of the 1st projection piece 4 and the 2nd projection piece 5 is different from Embodiment 1, and as shown to Fig.5 (a)-(c), the 1st projection piece 4 is shown in FIG. The second projecting piece 5 is formed by cutting and raising into a substantially semicircular cross section.

而して、実施形態１と同様の効果を奏することができるとともに、第１の突起片４及び第２の突起片５の何れもが断面略半円環状に形成されている、即ち丸みを帯びて形成されていることから、実施形態３，４と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性をより高めることができる。 Thus, the same effects as those of the first embodiment can be obtained, and both the first protruding piece 4 and the second protruding piece 5 are formed in a substantially semicircular cross section, that is, rounded. Therefore, the safety of work when attaching the case lid 3 to the case main body 2 can be further improved as compared with the third and fourth embodiments.

（実施形態６）
以下、本発明に係る放電灯点灯装置の実施形態６について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１と共通であるので、共通する部位については説明を省略する。本実施形態は、第１の突起片４を第１の側片３１の内壁に当接させる、若しくは第２の突起片５を脚片２１の外壁に当接させるのではなく、図６（ａ）〜（ｃ）に示すように、第１の突起片４と第２の突起片５とを互いに圧接させることでケース蓋３をケース本体２に取り付けることに特徴がある。 (Embodiment 6)
Hereinafter, Embodiment 6 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the description of the common parts is omitted. In the present embodiment, the first projecting piece 4 is not brought into contact with the inner wall of the first side piece 31 or the second projecting piece 5 is brought into contact with the outer wall of the leg piece 21 as shown in FIG. ) To (c), the case lid 3 is attached to the case body 2 by pressing the first projection piece 4 and the second projection piece 5 together.

以下、ケース本体２にケース蓋３を取り付ける取付方法について説明する。先ず、第１の側片３１と第２の側片３２との間にケース本体２の脚片２１を挿入するようにケース蓋３をケース本体２の上方から下げることで、第１の突起片４の上側の傾斜面と第２の突起片５の下側の傾斜面とを当接させる。この状態から更にケース本体２を下方向に押し込むと、各突起片が撓み、第１の突起片４と第２の突起片５とが互いに係合し、ケース本体２にケース蓋３が取り付けられる（図６（ａ）参照）。 Hereinafter, an attachment method for attaching the case lid 3 to the case body 2 will be described. First, the first protrusion piece is formed by lowering the case lid 3 from above the case body 2 so that the leg piece 21 of the case body 2 is inserted between the first side piece 31 and the second side piece 32. The upper inclined surface of 4 and the lower inclined surface of the second projecting piece 5 are brought into contact with each other. When the case main body 2 is further pushed downward from this state, each projection piece bends, the first projection piece 4 and the second projection piece 5 engage with each other, and the case lid 3 is attached to the case main body 2. (See FIG. 6 (a)).

ここで、本実施形態では、図６（ａ）に示すように、各脚片２１に設けられた第１の突起片４の端部間の距離Ｌ１が、各第１の側片３１に設けられた第２の突起片５の端部間の距離Ｌ３よりも大きくなるように寸法を設定している。したがって、第１の突起片４と第２の突起片５とが係合している状態において、第１の突起片４と第２の突起片５とが互いに押され、各突起片が復帰しようとする弾性力によって互いに圧接されることで、ケース本体２とケース蓋３とが第１の突起片４及び第２の突起片５を介して密着する。 Here, in the present embodiment, as shown in FIG. 6A, the distance L1 between the end portions of the first projection pieces 4 provided on each leg piece 21 is provided on each first side piece 31. The dimension is set so as to be larger than the distance L3 between the end portions of the second protrusion piece 5 thus formed. Therefore, in a state where the first protruding piece 4 and the second protruding piece 5 are engaged, the first protruding piece 4 and the second protruding piece 5 are pressed against each other, and each protruding piece will return. The case main body 2 and the case lid 3 are brought into close contact with each other via the first protruding piece 4 and the second protruding piece 5.

上述のように、金属製のケース本体２とケース蓋３とが第１の突起片４及び第２の突起片５を介して互いに密着するので、ケース本体２とケース蓋３との電気的接続を確実に行うことができる。また、第１の突起片４及び第２の突起片５は、上述のようにケース本体２にケース蓋３を取り付ける手段と、ケース本体２とケース蓋３とを電気的に接続する手段との両方を兼ね備えているので、各手段毎に部品を設ける必要が無く、ケースの製造コスト及び工程数を抑えることができる。更に、本実施形態では、第１の突起片４と第２の突起片５とを互いに圧接させているので、各第１の側片３１の内壁間の距離Ｌ２及び各脚片２１の外壁間の距離Ｌ４の寸法を細かく設定する必要がない。 As described above, the metal case main body 2 and the case lid 3 are in close contact with each other via the first protruding piece 4 and the second protruding piece 5, so that the electrical connection between the case main body 2 and the case lid 3 is performed. Can be performed reliably. Further, the first projecting piece 4 and the second projecting piece 5 include means for attaching the case lid 3 to the case body 2 as described above, and means for electrically connecting the case body 2 and the case lid 3. Since both are combined, there is no need to provide parts for each means, and the manufacturing cost and the number of steps of the case can be suppressed. Furthermore, in the present embodiment, the first projecting piece 4 and the second projecting piece 5 are in pressure contact with each other, so the distance L2 between the inner walls of each first side piece 31 and the outer wall of each leg piece 21 It is not necessary to set the dimension of the distance L4 in detail.

（実施形態７）
以下、本発明に係る放電灯点灯装置の実施形態７について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態６と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態６と異なっており、図７（ａ）〜（ｃ）に示すように、断面略半円環状に切り起こして形成されている。 (Embodiment 7)
Hereinafter, Embodiment 7 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the sixth embodiment, description of common portions is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the sixth embodiment, and as shown in FIGS.

而して、実施形態６と同様の効果を奏することができるとともに、第１の突起片４が断面略半円環状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the sixth embodiment can be obtained, and the first protrusion piece 4 is formed in a substantially semicircular cross section, that is, rounded. Compared with the case where the piece is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be enhanced.

（実施形態８）
以下、本発明に係る放電灯点灯装置の実施形態８について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態６と共通であるので、共通する部位については説明を省略する。本実施形態では、第２の突起片５の形状が実施形態６と異なっており、図８（ａ）〜（ｃ）に示すように、断面略半円環状に切り起こして形成されている。 (Embodiment 8)
Hereinafter, Embodiment 8 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the sixth embodiment, description of common portions is omitted. In the present embodiment, the shape of the second projecting piece 5 is different from that of the sixth embodiment, and as shown in FIGS.

而して、実施形態６と同様の効果を奏することができるとともに、第２の突起片５が断面略半円環状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the sixth embodiment can be obtained, and the second protrusion piece 5 is formed in a substantially semicircular cross section, that is, rounded. Compared with the case where the piece is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be enhanced.

（実施形態９）
以下、本発明に係る放電灯点灯装置の実施形態９について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態６と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４及び第２の突起片５の形状が実施形態６と異なっており、図９（ａ）〜（ｃ）に示すように、第１の突起片４が断面略半円環状に切り起こして形成されるとともに、第２の突起片５が断面略半円環状に切り起こして形成されている。 (Embodiment 9)
Hereinafter, a ninth embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the sixth embodiment, description of common portions is omitted. In the present embodiment, the shapes of the first protruding piece 4 and the second protruding piece 5 are different from those of the sixth embodiment, and as shown in FIGS. The second projecting piece 5 is formed by cutting and raising into a substantially semicircular cross section.

而して、実施形態６と同様の効果を奏することができるとともに、第１の突起片４及び第２の突起片５の何れもが断面略半円環状に形成されている、即ち丸みを帯びて形成されていることから、実施形態７，８と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性をより高めることができる。 Thus, the same effects as those of the sixth embodiment can be obtained, and both the first protruding piece 4 and the second protruding piece 5 are formed in a substantially semicircular cross section, that is, rounded. Therefore, the safety of work when attaching the case lid 3 to the case main body 2 can be further enhanced as compared with the seventh and eighth embodiments.

（実施形態１０）
以下、本発明に係る放電灯点灯装置の実施形態１０について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１と共通であるので、共通する部位については説明を省略する。本実施形態は、第２の突起片５が各第１の側片３１に設けられるのではなく、図１０（ａ）〜（ｃ）に示すように、第２の側片３２の長手方向における両側縁からケース本体２の脚片２１に対向して突出するように設けられていることに特徴がある（ケース蓋３の前側についてのみ図示し、ケース蓋３の後側については図示を省略する）。尚、本実施形態の第２の突起片５は略三角形状に形成され、下から上に向かうに従って第２の側片３２から離れる方向に傾斜する傾斜面と、左右方向と平行な平行面とを有する。また、本実施形態では第１の側片３１に突起片を形成していないことから、突起片を形成するためのスペースを設ける必要がないため、その上下方向の長さ寸法が前記各実施形態に比べて小さくなっている。 (Embodiment 10)
Hereinafter, a discharge lamp lighting device according to a tenth embodiment of the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the first embodiment, the description of the common parts is omitted. In the present embodiment, the second projecting piece 5 is not provided on each first side piece 31, but in the longitudinal direction of the second side piece 32 as shown in FIGS. 10A to 10C. It is characterized in that it is provided so as to protrude from both side edges facing the leg pieces 21 of the case body 2 (only the front side of the case lid 3 is shown, and the rear side of the case lid 3 is not shown) ). In addition, the 2nd protrusion piece 5 of this embodiment is formed in the substantially triangular shape, and the inclined surface which inclines in the direction which leaves | separates from the 2nd side piece 32 as it goes up from the bottom, and a parallel surface parallel to the left-right direction. Have Further, in the present embodiment, since no projecting piece is formed on the first side piece 31, it is not necessary to provide a space for forming the projecting piece. It is smaller than

以下、ケース本体２にケース蓋３を取り付ける取付方法について説明する。先ず、第１の側片３１と第２の側片３２との間にケース本体２の脚片２１を挿入するようにケース蓋３をケース本体２の上方から下げることで、第１の突起片４の上側の傾斜面と第２の突起片５の傾斜面とを当接させる。この状態から更にケース本体２を下方向に押し込むと、各突起片が撓み、第２の突起片５が第１の突起片４の上側の傾斜面に案内されて第１の突起片４を乗り越える。その後、各突起片が復帰することで第１の突起片４と第２の突起片５とが互いに係合し、ケース本体２にケース蓋３が取り付けられる（図１０（ａ）参照）。 Hereinafter, an attachment method for attaching the case lid 3 to the case body 2 will be described. First, the first protrusion piece is formed by lowering the case lid 3 from above the case body 2 so that the leg piece 21 of the case body 2 is inserted between the first side piece 31 and the second side piece 32. 4 is brought into contact with the inclined surface of the second protruding piece 5. When the case main body 2 is further pushed downward from this state, each projection piece bends, and the second projection piece 5 is guided by the upper inclined surface of the first projection piece 4 and gets over the first projection piece 4. . Thereafter, each projection piece is restored, whereby the first projection piece 4 and the second projection piece 5 are engaged with each other, and the case lid 3 is attached to the case body 2 (see FIG. 10A).

ここで、本実施形態では、図１０（ａ）に示すように、各第２の側片３２に設けられた第２の突起片５の端部間の距離Ｌ５が、各脚片２１の内壁間の距離Ｌ６よりも小さくなるように寸法を設定している。したがって、第１の突起片４と第２の突起片５とが係合している状態において、第２の突起片５が脚片２１の内壁に押され、第２の突起片５が復帰しようとする弾性力によって脚片２１の内壁に圧接され、ケース本体２とケース蓋３とが第２の突起片５を介して密着する。 Here, in the present embodiment, as shown in FIG. 10A, the distance L5 between the end portions of the second protruding pieces 5 provided on each second side piece 32 is the inner wall of each leg piece 21. The dimensions are set so as to be smaller than the distance L6. Therefore, in a state where the first protruding piece 4 and the second protruding piece 5 are engaged, the second protruding piece 5 is pushed against the inner wall of the leg piece 21, and the second protruding piece 5 is to be restored. The case main body 2 and the case lid 3 are brought into close contact with each other via the second projecting piece 5.

上述のように、金属製のケース本体２とケース蓋３とが第２の突起片５を介して互いに密着するので、ケース本体２とケース蓋３との電気的接続を確実に行うことができる。また、第１の突起片４及び第２の突起片５は、上述のようにケース本体２にケース蓋３を取り付ける手段と、ケース本体２とケース蓋３とを電気的に接続する手段との両方を兼ね備えているので、各手段毎に部品を設ける必要が無く、ケースの製造コスト及び工程数を抑えることができる。 As described above, since the metal case main body 2 and the case lid 3 are in close contact with each other via the second projecting piece 5, the electrical connection between the case main body 2 and the case lid 3 can be reliably performed. . Further, the first projecting piece 4 and the second projecting piece 5 include means for attaching the case lid 3 to the case body 2 as described above, and means for electrically connecting the case body 2 and the case lid 3. Since both are combined, there is no need to provide parts for each means, and the manufacturing cost and the number of steps of the case can be suppressed.

尚、本実施形態では、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第１の突起片４の端部が第２の突起片５の平行面に当接してそれ以上の移動が規制されるので、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 In the present embodiment, when the case lid 3 is moved away from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the first projection Since the end of the piece 4 abuts against the parallel surface of the second protruding piece 5 and further movement is restricted, each protruding piece cannot get over the other protruding piece, and the first protruding piece 4 And the second protruding piece 5 cannot be easily released.

（実施形態１１）
以下、本発明に係る放電灯点灯装置の実施形態１１について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１０と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１０と異なっており、図１１（ａ）〜（ｃ）に示すように、外側に膨らむように湾曲して形成されている。 (Embodiment 11)
Hereinafter, an eleventh embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the tenth embodiment, the description of the common parts is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the tenth embodiment, and as shown in FIGS. 11 (a) to 11 (c), the first projecting piece 4 is formed so as to bend outward.

而して、実施形態１０と同様の効果を奏することができる。尚、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第１の突起片４の端部が第２の突起片５の平行面に当接してそれ以上の移動が規制されるので、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 Thus, the same effects as those of the tenth embodiment can be obtained. In addition, when the case lid 3 is moved in the direction to be removed from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the end portion of the first projection piece 4 Is in contact with the parallel surface of the second projecting piece 5 and further movement is restricted, so that each projecting piece cannot get over the other projecting piece, and the first projecting piece 4 and the second projecting piece The engagement state with the piece 5 cannot be easily released.

（実施形態１２）
以下、本発明に係る放電灯点灯装置の実施形態１２について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１０と共通であるので、共通する部位については説明を省略する。本実施形態では、第２の突起片５の形状が実施形態１０と異なっており、図１２（ａ）〜（ｃ）に示すように、略半円状に形成されている。 Embodiment 12
Hereinafter, a twelfth embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the tenth embodiment, the description of the common parts is omitted. In this embodiment, the shape of the 2nd protrusion piece 5 differs from Embodiment 10, and as shown to Fig.12 (a)-(c), it is formed in the substantially semicircle shape.

而して、実施形態１０と同様の効果を奏することができるとともに、第２の突起片５が略半円状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the tenth embodiment can be obtained, and the second protrusions 5 are formed in a substantially semicircular shape, that is, rounded. As compared with the case where the case lid 3 is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be improved.

（実施形態１３）
以下、本発明に係る放電灯点灯装置の実施形態１３について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１２と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１２と異なっており、図１３（ａ）〜（ｃ）に示すように、外側に膨らむように湾曲して形成されている。 (Embodiment 13)
Hereinafter, a discharge lamp lighting device according to a thirteenth embodiment of the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the twelfth embodiment, the description of the common parts is omitted. In the present embodiment, the shape of the first protruding piece 4 is different from that of the twelfth embodiment, and as shown in FIGS. 13 (a) to (c), the first protruding piece 4 is formed so as to bend outward.

而して、実施形態１２と同様の効果を奏することができる。尚、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第１の突起片４の端部が第２の突起片５に当接してそれ以上の移動が規制されるので、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 Thus, the same effects as those of the twelfth embodiment can be obtained. In addition, when the case lid 3 is moved in the direction to be removed from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the end portion of the first projection piece 4 Is in contact with the second protruding piece 5 and further movement is restricted, so that each protruding piece cannot get over the other protruding piece, and the first protruding piece 4 and the second protruding piece 5 The engagement state cannot be easily released.

（実施形態１４）
以下、本発明に係る放電灯点灯装置の実施形態１４について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１０と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１０と異なっており、図１４（ａ）〜（ｃ）に示すように、断面略半円環状に切り起こして形成されている。 (Embodiment 14)
Hereinafter, a fourteenth embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the tenth embodiment, the description of the common parts is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the tenth embodiment, and as shown in FIGS.

而して、実施形態１０と同様の効果を奏することができるとともに、第１の突起片４が略半円環状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the tenth embodiment can be obtained, and the first projecting piece 4 is formed in a substantially semi-annular shape, that is, rounded. As compared with the case where the case lid 3 is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be improved.

尚、第１の突起片４と第２の突起片５とが係合している状態において、ケース蓋３をケース本体２から取り外す方向に動かした場合に、第２の突起片５の端部が第１の突起片４に当接してそれ以上の移動が規制されるので、各突起片が他方の突起片を乗り越えることができず、第１の突起片４と第２の突起片５との係合状態を容易に解除できないようになっている。 Note that when the case lid 3 is moved in a direction to be removed from the case body 2 in a state where the first projection piece 4 and the second projection piece 5 are engaged, the end portion of the second projection piece 5 is removed. Is in contact with the first protruding piece 4 and further movement is restricted, so that each protruding piece cannot get over the other protruding piece, and the first protruding piece 4 and the second protruding piece 5 The engagement state cannot be easily released.

（実施形態１５）
以下、本発明に係る放電灯点灯装置の実施形態１５について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１０と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４及び第２の突起片５の形状が実施形態１０と異なっており、図１５（ａ）〜（ｃ）に示すように、第１の突起片４が断面略半円環状に切り起こして形成されるとともに、第２の突起片５が略半円状に形成されている。 (Embodiment 15)
Hereinafter, a discharge lamp lighting device according to a fifteenth embodiment of the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the tenth embodiment, the description of the common parts is omitted. In the present embodiment, the shapes of the first protruding piece 4 and the second protruding piece 5 are different from those of the tenth embodiment, and as shown in FIGS. The second projection piece 5 is formed in a substantially semicircular shape while being cut and raised in a substantially semicircular cross section.

而して、実施形態１０と同様の効果を奏することができるとともに、第１の突起片４及び第２の突起片５の何れもが丸みを帯びて形成されていることから、実施形態１２〜１４と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性をより高めることができる。 Thus, the same effects as those of the tenth embodiment can be obtained, and both the first protrusion pieces 4 and the second protrusion pieces 5 are rounded. Compared to 14, the safety of work when attaching the case lid 3 to the case body 2 can be further enhanced.

（実施形態１６）
以下、本発明に係る放電灯点灯装置の実施形態１６について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１０と共通であるので、共通する部位については説明を省略する。本実施形態は、第２の突起片５を脚片２１の内壁に当接させるのではなく、図１６（ａ）〜（ｃ）に示すように、第１の突起片４と第２の突起片５とを互いに圧接させることでケース蓋３をケース本体２に取り付けることに特徴がある。 (Embodiment 16)
Hereinafter, a sixteenth embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. Since the basic configuration of the present embodiment is the same as that of the tenth embodiment, the description of the common parts is omitted. In the present embodiment, the second projecting piece 5 is not brought into contact with the inner wall of the leg piece 21, but as shown in FIGS. 16A to 16C, the first projecting piece 4 and the second projecting piece It is characterized in that the case lid 3 is attached to the case body 2 by bringing the pieces 5 into pressure contact with each other.

以下、ケース本体２にケース蓋３を取り付ける取付方法について説明する。先ず、第１の側片３１と第２の側片３２との間にケース本体２の脚片２１を挿入するようにケース蓋３をケース本体２の上方から下げることで、第１の突起片４の上側の傾斜面と第２の突起片５の傾斜面とを当接させる。この状態から更にケース本体２を下方向に押し込むと、各突起片が撓み、第１の突起片４と第２の突起片５とが互いに係合し、ケース本体２にケース蓋３が取り付けられる（図１６（ａ）参照）。 Hereinafter, an attachment method for attaching the case lid 3 to the case body 2 will be described. First, the first protrusion piece is formed by lowering the case lid 3 from above the case body 2 so that the leg piece 21 of the case body 2 is inserted between the first side piece 31 and the second side piece 32. 4 is brought into contact with the inclined surface of the second protruding piece 5. When the case main body 2 is further pushed downward from this state, each projection piece bends, the first projection piece 4 and the second projection piece 5 engage with each other, and the case lid 3 is attached to the case main body 2. (See FIG. 16 (a)).

ここで、本実施形態では、図１６（ａ）に示すように、各第２の側片３２に設けられた第２の突起片５の端部間の距離Ｌ５が、各脚片２１に設けられた第１の突起片４の端部間の距離Ｌ１よりも大きくなるように寸法を設定している。したがって、第１の突起片４と第２の突起片５とが係合している状態において、第１の突起片４と第２の突起片５とが互いに押され、各突起片が復帰しようとする弾性力によって互いに圧接されることで、ケース本体２とケース蓋３とが第１の突起片４及び第２の突起片５を介して密着する。 Here, in the present embodiment, as shown in FIG. 16A, a distance L5 between the end portions of the second protruding pieces 5 provided on each second side piece 32 is provided on each leg piece 21. The dimension is set so as to be larger than the distance L1 between the end portions of the first projection piece 4 thus formed. Therefore, in a state where the first protruding piece 4 and the second protruding piece 5 are engaged, the first protruding piece 4 and the second protruding piece 5 are pressed against each other, and each protruding piece will return. The case main body 2 and the case lid 3 are brought into close contact with each other via the first protruding piece 4 and the second protruding piece 5.

上述のように、金属製のケース本体２とケース蓋３とが第１の突起片４及び第２の突起片５を介して互いに密着するので、ケース本体２とケース蓋３との電気的接続を確実に行うことができる。また、第１の突起片４及び第２の突起片５は、上述のようにケース本体２にケース蓋３を取り付ける手段と、ケース本体２とケース蓋３とを電気的に接続する手段との両方を兼ね備えているので、各手段毎に部品を設ける必要が無く、ケースの製造コスト及び工程数を抑えることができる。更に、本実施形態では、第１の突起片４と第２の突起片５とを互いに圧接させているので、各脚片２１の内壁間の距離Ｌ６の寸法を細かく設定する必要がない。 As described above, the metal case main body 2 and the case lid 3 are in close contact with each other via the first protruding piece 4 and the second protruding piece 5, so that the electrical connection between the case main body 2 and the case lid 3 is performed. Can be performed reliably. Further, the first projecting piece 4 and the second projecting piece 5 include means for attaching the case lid 3 to the case body 2 as described above, and means for electrically connecting the case body 2 and the case lid 3. Since both are combined, there is no need to provide parts for each means, and the manufacturing cost and the number of steps of the case can be suppressed. Furthermore, in this embodiment, since the 1st protrusion piece 4 and the 2nd protrusion piece 5 are mutually press-contacted, it is not necessary to set the dimension of the distance L6 between the inner walls of each leg piece 21 finely.

（実施形態１７）
以下、本発明に係る放電灯点灯装置の実施形態１７について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１６と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１６と異なっており、図１７（ａ）〜（ｃ）に示すように、外側に膨らむように湾曲して形成されている。而して、実施形態１６と同様の効果を奏することができる。 (Embodiment 17)
Hereinafter, a seventeenth embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. The basic configuration of the present embodiment is the same as that of the sixteenth embodiment, and thus description of common portions is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the sixteenth embodiment, and as shown in FIGS. 17 (a) to 17 (c), the first projecting piece 4 is formed so as to bend outward. Thus, the same effects as in the sixteenth embodiment can be achieved.

（実施形態１８）
以下、本発明に係る放電灯点灯装置の実施形態１８について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１６と共通であるので、共通する部位については説明を省略する。本実施形態では、第２の突起片５の形状が実施形態１６と異なっており、図１８（ａ）〜（ｃ）に示すように、略半円状に形成されている。 (Embodiment 18)
Hereinafter, an eighteenth embodiment of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. The basic configuration of the present embodiment is the same as that of the sixteenth embodiment, and thus description of common portions is omitted. In this embodiment, the shape of the 2nd protrusion piece 5 differs from Embodiment 16, and as shown to Fig.18 (a)-(c), it is formed in the substantially semicircle shape.

而して、実施形態１６と同様の効果を奏することができるとともに、第２の突起片５が略半円状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the sixteenth embodiment can be obtained, and the second projecting piece 5 is formed in a substantially semicircular shape, that is, rounded. As compared with the case where the case lid 3 is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be improved.

（実施形態１９）
以下、本発明に係る放電灯点灯装置の実施形態１９について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１８と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１８と異なっており、図１９（ａ）〜（ｃ）に示すように、外側に膨らむように湾曲して形成されている。而して、実施形態１８と同様の効果を奏することができる。 (Embodiment 19)
Hereinafter, a nineteenth embodiment of a discharge lamp lighting device according to the present invention will be described with reference to the drawings. The basic configuration of the present embodiment is the same as that of the eighteenth embodiment, and thus description of common portions is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the eighteenth embodiment, and as shown in FIGS. 19 (a) to 19 (c), the first projecting piece 4 is formed so as to bend outward. Thus, the same effects as in the eighteenth embodiment can be achieved.

（実施形態２０）
以下、本発明に係る放電灯点灯装置の実施形態２０について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１６と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４の形状が実施形態１６と異なっており、図２０（ａ）〜（ｃ）に示すように、断面略半円環状に切り起こして形成されている。 (Embodiment 20)
Hereinafter, Embodiment 20 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. The basic configuration of the present embodiment is the same as that of the sixteenth embodiment, and thus description of common portions is omitted. In the present embodiment, the shape of the first projecting piece 4 is different from that of the sixteenth embodiment, and as shown in FIGS.

而して、実施形態１６と同様の効果を奏することができるとともに、第１の突起片４が略半円環状に形成されている、即ち丸みを帯びて形成されていることから、各突起片が鋭利な形状で形成された場合と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性を高めることができる。 Thus, the same effects as those of the sixteenth embodiment can be obtained, and the first projecting piece 4 is formed in a substantially semi-annular shape, that is, rounded. As compared with the case where the case lid 3 is formed in a sharp shape, the safety of work when attaching the case lid 3 to the case body 2 can be improved.

（実施形態２１）
以下、本発明に係る放電灯点灯装置の実施形態２１について図面を用いて説明する。尚、本実施形態の基本的な構成は実施形態１６と共通であるので、共通する部位については説明を省略する。本実施形態では、第１の突起片４及び第２の突起片５の形状が実施形態１６と異なっており、図２１（ａ）〜（ｃ）に示すように、第１の突起片４が断面略半円環状に切り起こして形成されるとともに、第２の突起片５が略半円状に形成されている。 (Embodiment 21)
Hereinafter, Embodiment 21 of the discharge lamp lighting device according to the present invention will be described with reference to the drawings. The basic configuration of the present embodiment is the same as that of the sixteenth embodiment, and thus description of common portions is omitted. In the present embodiment, the shapes of the first protruding piece 4 and the second protruding piece 5 are different from those of the sixteenth embodiment, and as shown in FIGS. The second projection piece 5 is formed in a substantially semicircular shape while being cut and raised in a substantially semicircular cross section.

而して、実施形態１６と同様の効果を奏することができるとともに、第１の突起片４及び第２の突起片５の何れもが丸みを帯びて形成されていることから、実施形態１８〜２０と比較して、ケース蓋３をケース本体２に取り付ける際の作業の安全性をより高めることができる。 Thus, the same effects as in the sixteenth embodiment can be obtained, and both the first and second projecting pieces 4 and 5 are rounded. Compared to 20, the safety of work when attaching the case lid 3 to the case body 2 can be further enhanced.

以下、本発明に係る照明器具の実施形態について図面を用いて説明する。本実施形態は、図２２に示すように、天井に取り付けられる平板状の器具本体６と、器具本体６の長手方向における両端に１つずつ設けられて１本の放電灯（図示せず）が着脱自在に装着されるソケット６０と、器具本体６に取り付けられて放電灯からの光を反射させる逆富士型の反射板６１とから成り、前述の何れかの実施形態の放電灯点灯装置（図示せず）が器具本体６の内部に収納される。尚、このような照明器具は周知であるので、ここでは詳細な説明を省略する。 Hereinafter, embodiments of a lighting apparatus according to the present invention will be described with reference to the drawings. In the present embodiment, as shown in FIG. 22, a flat appliance body 6 attached to the ceiling, and one discharge lamp (not shown) provided at both ends in the longitudinal direction of the appliance body 6. The discharge lamp lighting device according to any one of the above-described embodiments is composed of a socket 60 that is detachably attached and an inverted Fuji-type reflector 61 that is attached to the fixture body 6 and reflects light from the discharge lamp. (Not shown) is housed inside the instrument body 6. In addition, since such a lighting fixture is well-known, detailed description is abbreviate | omitted here.

上述のように、前述の何れかの実施形態の放電灯点灯装置を用いた照明器具を実現することができる。 As described above, a lighting fixture using the discharge lamp lighting device according to any one of the above-described embodiments can be realized.

尚、本明細書では、直管形の放電灯を用いた１灯用の照明器具の実施形態について記載しているが、例えば環状形の放電灯や、ダウンライト型の器具に用いられるコンパクト形の放電灯を用いる照明器具に上記各実施形態の放電灯点灯装置を用いても構わない。また、放電灯の灯数及び放電灯点灯装置の点灯可能な灯数が１灯に限定されないことは言うまでもない。 In this specification, an embodiment of a lighting device for one lamp using a straight tube type discharge lamp is described. However, for example, a compact type used for an annular discharge lamp or a downlight type device. You may use the discharge lamp lighting device of each said embodiment for the lighting fixture which uses this discharge lamp. It goes without saying that the number of discharge lamps and the number of lamps that can be lit by the discharge lamp lighting device are not limited to one.

本発明に係る放電灯点灯装置の実施形態１を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態２を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 2 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態３を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 3 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態４を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 4 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態５を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 5 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態６を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 6 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態７を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 7 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態８を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 8 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態９を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 9 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１０を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 10 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１１を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 11 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１２を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 12 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１３を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 13 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１４を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 14 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１５を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 15 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１６を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 16 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１７を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 17 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１８を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 18 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態１９を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 19 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態２０を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 20 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る放電灯点灯装置の実施形態２１を示す図で、（ａ）は正面図で、（ｂ）は上面図で、（ｃ）は全体斜視図である。It is a figure which shows Embodiment 21 of the discharge lamp lighting device which concerns on this invention, (a) is a front view, (b) is a top view, (c) is a whole perspective view. 本発明に係る照明器具の実施形態を示す全体斜視図である。It is a whole perspective view which shows embodiment of the lighting fixture which concerns on this invention. 従来の放電灯点灯装置を示す図で、（ａ）は全体斜視図で、（ｂ）は突起片の嵌合前の状態を示す一部拡大図で、（ｃ）は突起片の嵌合後の状態を示す一部拡大図である。It is a figure which shows the conventional discharge lamp lighting device, (a) is a whole perspective view, (b) is the partially expanded view which shows the state before fitting of a protrusion piece, (c) is after fitting of a protrusion piece It is a partially expanded view which shows the state.

Explanation of symbols

１プリント配線板
２ケース本体
２０主板
２１脚片
３ケース蓋
３０天板
３１第１の側片
３２第２の側片
４第１の突起片
５第２の突起片 DESCRIPTION OF SYMBOLS 1 Printed wiring board 2 Case main body 20 Main board 21 Leg piece 3 Case cover 30 Top plate 31 1st side piece 32 2nd side piece 4 1st protrusion piece 5 2nd protrusion piece

Claims

A substantially rectangular printed wiring board on which the components of a lighting circuit that supplies power necessary for lighting a discharge lamp are mounted, and a case for storing the printed wiring board, the case in the thickness direction of the printed wiring board A metal case formed in a substantially U-shaped cross section from a substantially rectangular main plate facing the printed wiring board and a pair of leg pieces standing in the thickness direction of the printed wiring board from both side edges along the longitudinal direction of the main board The main body, a substantially rectangular top plate facing the printed wiring board in the thickness direction of the printed wiring board, and the both sides along the longitudinal direction of the top board are vertically extended toward the main board so as to cover the leg pieces. Cross section from a pair of first side pieces and a pair of second side pieces extending from both side edges along the short direction of the top plate perpendicularly to the first side pieces and perpendicularly to the main plate Metal case lid formed in an approximately U shape , A discharge lamp lighting device comprising a mounting means for mounting the case lid to the case body so as to cover the printed wiring board, the mounting means being provided on the leg piece and facing the first side piece And one or a plurality of first projecting pieces, and one or a plurality of second projecting pieces provided on the second side piece of the case lid and projecting to face the leg pieces. The case body and the case lid are attached to each other by engaging the protrusion piece and the second protrusion piece with each other, and at least one of the first protrusion piece and the second protrusion piece has elasticity. The discharge lamp lighting device characterized in that, at the time of engagement, the protruding piece having elasticity is brought into pressure contact with any portion opposed by elastic force.

The discharge lamp lighting device according to claim 1, wherein at least one of the first projecting piece and the second projecting piece is rounded .

An apparatus main body, a socket attached to the apparatus main body and detachably mounted with the discharge lamp, and a discharge lamp lighting device according to claim 1 or 2 for supplying electric power to the discharge lamp through the socket. Characteristic lighting equipment.