JP2009238534A

JP2009238534A - Lighting fixture

Info

Publication number: JP2009238534A
Application number: JP2008082106A
Authority: JP
Inventors: Kenichi Kono; 研一河野
Original assignee: Panasonic Electric Works Co Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2008-03-26
Filing date: 2008-03-26
Publication date: 2009-10-15
Anticipated expiration: 2028-03-26
Also published as: JP5149665B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of improving aesthetic appearance as well as improving utilization efficiency of light, and, besides, capable of improving assembling properties. <P>SOLUTION: The lighting fixture includes: a fixture body 1 constituted of a body 2 in which the front face is opened and a light source L is housed inside thereof, and a cover 3 which has a window hole 3a for directing light emitted from the light source L in the forward direction, and is mounted on the front side of the body 2; a translucent panel 4 housed in the fixture body 1 in a form in which the window hole 3a is closed; a packing part 5 which is formed into a cylindrical shape with an elastic body and in which the translucent panel 4 is fitted into the inside thereof; a pinching part 6a which pinches the packing part 5 and the translucent panel 4 together with a packing abutting part 31 of the cover 3; and a fitting fixture 6 with which a holding part 6b used for mounting on the fixture body 1 is integrally provided. The holding part 6b of the fitting fixture 6 is pinched between a rear side abutting part 22 of the body 2 and a front side abutting part 30c of the cover 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、照明器具、特に防水型の照明器具に関するものである。 The present invention relates to a lighting fixture, and more particularly to a waterproof lighting fixture.

従来から、被水環境下においても使用可能な防水型の照明器具が種々提案されている（例えば、特許文献１参照）。この種の防水型の照明器具としては、例えば、図６〜図８に示すものが挙げられる。 Conventionally, various waterproof lighting fixtures that can be used even in a wet environment have been proposed (see, for example, Patent Document 1). Examples of this type of waterproof luminaire include those shown in FIGS. 6 to 8.

図６（ａ），（ｂ）に示す構成の照明器具は、前面（図６（ａ）における左面）が開口され内部に光源Ｌが収納されるボディ１１０、および光源Ｌから放射された光を前方に出射させる窓孔１２１を有し当該ボディ１１０の前面側に取り付けられたカバー１２０により構成された器具本体１００と、カバー１２０の窓孔１２１を閉塞する形で器具本体１００に収納された透光パネル２００とを備える。 6 (a) and 6 (b), the lighting fixture has a front surface (the left surface in FIG. 6 (a)) that is opened and a light source L that receives light emitted from the light source L. The instrument main body 100 constituted by a cover 120 having a window hole 121 to be emitted forward and attached to the front side of the body 110, and a transparent member housed in the instrument main body 100 so as to close the window hole 121 of the cover 120. And an optical panel 200.

このものでは、透光パネル２００が、筒状（円筒状）のパッキン部３００の内側に嵌め込まれており、透光パネル２００が嵌め込まれたパッキン部３００を、カバー１２０と環状（円環状）の固定具４００との間で狭持し、これによって、カバー１２０と透光パネル２００との隙間から水などの流体が器具本体１００内に浸入することを防止している。図６に示す照明器具においては、固定具４００は、ネジ止めによりカバー１２０に固定される。そのため、カバー１２０の後面側における窓孔１２１の周縁部には、固定具４００をカバー１２０に固定するための固定ネジ５００を螺入するネジ孔１２２が複数設けられる。 In this structure, the translucent panel 200 is fitted inside a cylindrical (cylindrical) packing part 300, and the packing part 300 into which the translucent panel 200 is fitted is connected to the cover 120 and an annular (annular) shape. This is sandwiched between the fixture 400, thereby preventing fluid such as water from entering the instrument main body 100 from the gap between the cover 120 and the translucent panel 200. In the luminaire shown in FIG. 6, the fixture 400 is fixed to the cover 120 by screwing. Therefore, a plurality of screw holes 122 into which fixing screws 500 for fixing the fixture 400 to the cover 120 are screwed are provided in the peripheral portion of the window hole 121 on the rear surface side of the cover 120.

図７（ａ），（ｂ）に示す構成の照明器具は、器具本体１００と、透光パネル２００と、パッキン部３００と、固定具４００とを備える点は図６に示すものと同様であるが、固定具４００をカバー１２０に取り付ける構造が図６に示すものと異なっている。すなわち、図７に示す構成の照明器具では、固定具４００をネジ止めでカバー１２０に固定せずに、固定具４００をカバー１２０の後方よりカバー１２０内に圧入することにより、固定具４００をカバー１２０に固定している。なお、図７に示す構成の照明器具におけるその他の構成は図６に示す照明器具と同様であるから、同様の構成については同一の符合を付して説明を省略する。 The lighting fixture having the configuration shown in FIGS. 7A and 7B is the same as that shown in FIG. 6 in that the fixture main body 100, the translucent panel 200, the packing portion 300, and the fixture 400 are provided. However, the structure for attaching the fixture 400 to the cover 120 is different from that shown in FIG. That is, in the lighting apparatus having the configuration shown in FIG. 7, the fixing device 400 is pressed into the cover 120 from the rear of the cover 120 without fixing the fixing device 400 to the cover 120 with screws, thereby covering the fixing device 400. 120 is fixed. 7 is the same as that of the luminaire shown in FIG. 6, the same components are denoted by the same reference numerals and description thereof is omitted.

一方、図８（ａ），（ｂ）に示す構成の照明器具は、固定具４００を用いる代わりに、ボディ１１０を用いて、パッキン部３００および透光パネル２００をカバー１２０に固定している点で図６，７それぞれに示すものと異なっている。すなわち、図８に示す構成の照明器具では、ボディ１１０で、透光パネル２００およびパッキン部３００をカバー１２０との間で狭持する固定具を兼用している。図８に示す照明器具では、カバー１２０とボディ１１０とは、取付ネジ６００を、カバー１２０に形成したネジ挿通孔１２３を通して、ボディ１１０の開口（前面開口）の縁部に形成したネジ孔１１１に螺入することで、結合されている。なお、図８に示す構成の照明器具におけるその他の構成は図６に示すものと同様であるから、同様の構成については同一の符号を付して説明を省略する。
特開２００７−１８７８４号公報 On the other hand, the lighting fixture having the configuration shown in FIGS. 8A and 8B uses the body 110 to fix the packing portion 300 and the translucent panel 200 to the cover 120 instead of using the fixture 400. Are different from those shown in FIGS. In other words, in the lighting fixture having the configuration shown in FIG. 8, the body 110 also serves as a fixture for holding the light transmitting panel 200 and the packing part 300 between the cover 120 and the body 110. In the luminaire shown in FIG. 8, the cover 120 and the body 110 pass through the screw insertion holes 123 formed in the cover 120 to the screw holes 111 formed at the edge of the opening (front opening) of the body 110. It is connected by screwing. 8 is the same as that shown in FIG. 6, the same components are denoted by the same reference numerals and description thereof is omitted.
JP 2007-18784 A

ところで、上述したような照明器具では、光の利用効率の向上が望まれている。しなしながら、図６に示す構成の照明器具では、固定具４００をネジ止めによりカバー１２０に固定しているので、カバー１２０の後面側における窓孔１２１の周縁部にネジ孔１２２を複数形成する必要があるから、窓孔１２１の周縁部に、ネジ孔１２２を形成するための部位を確保しなければならない。そのため、図６に示す照明器具では、カバー１２０の外形サイズに比べて、窓孔１２１の開口サイズが小さくなってしまう。 By the way, in the lighting fixture as described above, it is desired to improve the utilization efficiency of light. However, since the fixture 400 is fixed to the cover 120 by screwing in the lighting fixture having the configuration shown in FIG. 6, a plurality of screw holes 122 are formed in the peripheral portion of the window hole 121 on the rear surface side of the cover 120. Since it is necessary, a portion for forming the screw hole 122 must be secured in the peripheral portion of the window hole 121. Therefore, in the luminaire shown in FIG. 6, the opening size of the window hole 121 is smaller than the outer size of the cover 120.

これに対して図７に示す構成の照明器具では、固定具４００をネジ止めせずに、カバー１２０に圧入するものであるので、上記のネジ孔１２２（図６（ａ）参照）をカバー１２０に形成する必要がないから、カバー１２０の外形サイズが同じであれば、図６に示すものよりも、窓孔１２１の開口サイズを大きくすることができる（図６（ｂ），図７（ｂ）参照）。ところが、固定具４００をカバー１２０に圧入する作業は、ネジ止めする作業に比べて作業性が悪いから、組立性が悪いという別の問題が生じていた。また、圧入により固定具４００をカバー１２０に固定する場合には、ネジ止めにより固定する場合に比べれば、固定具４００とカバー１２０それぞれの成形誤差などの影響を受け易く、製品毎に性能がばらつき易いという問題も生じるおそれがある。これらの点は、固定具４００を接着剤などでカバー１２０に固定する場合においても同様である。 On the other hand, in the lighting fixture having the configuration shown in FIG. 7, the fixing tool 400 is press-fitted into the cover 120 without screwing, and thus the screw hole 122 (see FIG. 6A) is inserted into the cover 120. If the cover 120 has the same external size, the opening size of the window hole 121 can be made larger than that shown in FIG. 6 (FIGS. 6B and 7B). )reference). However, the work of press-fitting the fixing device 400 into the cover 120 is less workable than the work of screwing, and thus another problem of poor assembling has occurred. In addition, when fixing the fixture 400 to the cover 120 by press-fitting, compared to the case of fixing by screwing, the fixture 400 and the cover 120 are more susceptible to molding errors and the performance varies from product to product. There is also a possibility that the problem of being easy to occur. These points are the same when the fixture 400 is fixed to the cover 120 with an adhesive or the like.

一方、図８に示す構成の照明器具は、固定具４００を用いる必要がないから、部品点数が少なく、また、カバー１２０とボディ１１０とを結合することによって、パッキン部３００および透光パネル２００をカバー１２０に固定することができるから、組立作業が比較的容易に行える。しかしながら、カバー１２０にネジ止めのためのネジ挿通孔１２３を形成する必要があるから、図６に示すものと同様に、カバー１２０の外形サイズに比べて、窓孔１２１の開口サイズが小さくならざるを得ず、窓孔１２１の開口サイズを図７に示すものと同様の大きさにするためには、カバー１２０にネジ挿通孔１２３を形成するための突出部１２４を形成するとともに、ボディ１１０にネジ孔１１１を形成するための突出部１１２を形成しなくてはならない。 On the other hand, since the lighting fixture having the configuration shown in FIG. 8 does not need to use the fixture 400, the number of parts is small, and the packing portion 300 and the translucent panel 200 are connected by connecting the cover 120 and the body 110 together. Since it can be fixed to the cover 120, the assembly work can be performed relatively easily. However, since it is necessary to form the screw insertion hole 123 for screwing in the cover 120, the opening size of the window hole 121 does not have to be smaller than the outer size of the cover 120 as in the case shown in FIG. In order to make the opening size of the window hole 121 the same as that shown in FIG. 7, a protrusion 124 for forming the screw insertion hole 123 is formed in the cover 120, and The protrusion 112 for forming the screw hole 111 must be formed.

そのため、図８に示す構成の照明器具では、図７に示すものに比べれば、組立性を向上することが可能であるが、器具本体１００の外面に取付ネジ６００が露出し、また、器具本体１００に不自然に突出した部位（図８における突出部１１２，１２４）が存在するために、美観が悪いという別の問題が生じていた。 Therefore, in the lighting fixture having the configuration shown in FIG. 8, it is possible to improve the assemblability as compared with that shown in FIG. 7, but the mounting screw 600 is exposed on the outer surface of the fixture body 100, and the fixture body Since there is a portion (protrusions 112 and 124 in FIG. 8) that protrudes unnaturally in 100, another problem of poor aesthetics has occurred.

本発明は上述の点に鑑みて為されたもので、その目的は、光の利用効率を向上できるとともに美観を向上できる上に、組立性を向上できる照明器具を提供することにある。 The present invention has been made in view of the above-described points, and an object of the present invention is to provide a lighting apparatus that can improve light use efficiency and aesthetics, and can improve assemblability.

上述の課題を解決するために、請求項１の発明では、前面が開口され内部に光源が収納されるボディ、および光源から放射された光を前方に出射させる窓孔を有し当該ボディの前面側に取り付けられたカバーにより構成された器具本体と、カバーの窓孔を閉塞する形で器具本体に収納された透光パネルと、弾性体により窓孔を囲う形に形成され透光パネルの前面における縁部の全周と当接する部位を有したパッキン部と、パッキン部および透光パネルをカバーに固定する固定具とを備え、カバーは、透光パネル側とは反対側において上記パッキン部の上記部位の全周と当接するパッキン当接部を有し、固定具は、カバーのパッキン当接部との間でパッキン部および透光パネルを狭持する狭持部と、器具本体に保持された保持部とを一体に備え、器具本体は、固定具を保持する固定具保持手段を備え、固定具保持手段は、固定具の保持部の前面に当接する形にカバーに形成された前側当接部と、固定具の保持部の後面に当接する形でボディに形成され前側当接部との間で保持部を狭持する後側当接部とで構成されていることを特徴とする。 In order to solve the above-described problems, in the invention of claim 1, the front surface of the body has a body having a front surface opened and a light source accommodated therein, and a window hole for emitting light emitted from the light source forward. An instrument body composed of a cover attached to the side, a translucent panel housed in the instrument body so as to close the window hole of the cover, and a front surface of the translucent panel formed to surround the window hole by an elastic body A packing portion having a portion that contacts the entire circumference of the edge portion, and a fixing member that fixes the packing portion and the translucent panel to the cover. The cover is disposed on the side opposite to the translucent panel side of the packing portion. A packing abutting portion that abuts the entire circumference of the above-described portion, and the fixture is held by the instrument body and a sandwiching portion that sandwiches the packing portion and the translucent panel with the packing abutting portion of the cover. Integrated holding part The instrument body includes a fixture holding means for holding the fixture, and the fixture holding means includes a front abutting portion formed on the cover so as to abut against the front surface of the fixture holding portion, and a fixture holding portion. A rear contact portion that is formed on the body so as to contact the rear surface and sandwiches the holding portion with the front contact portion.

請求項１の発明によれば、カバーをボディに取り付けて、固定具の保持部をカバーに形成した前側当接部とボディに形成した後側当接部との間で狭持することによって、固定具を器具本体に取り付けることができるので、固定具を器具本体にネジ止めする必要がなくなるから、例えば、従来例のように固定具をカバーに固定するためにカバーの窓孔の周縁部にネジ孔を形成しなくて済むから、カバーの外形サイズに対する窓孔の開口サイズの比率を大きくすることができて、カバーの外形サイズが同じであれば、光の利用効率を向上できる。また、固定具を用いずにボディでパッキン部を固定するものとは異なり、カバーをボディにネジ止めする必要がないので、ネジが器具本体の外面に露出することがなく、ネジ止めのための部位を器具本体の側面に突設する必要もないからいから、美観（意匠性）を向上できる。その上、カバーをボディに取り付けることによって、固定具を器具本体に取り付けることができるので、固定具のねじ止めや、圧入、接着などを別途行う必要がなくなって、組立作業が容易に行えるようになるから、組立性を向上できる。 According to the first aspect of the present invention, by attaching the cover to the body and holding the holding part of the fixture between the front contact part formed on the cover and the rear contact part formed on the body, Since the fixture can be attached to the instrument body, it is not necessary to screw the fixture to the instrument body. For example, in order to fix the fixture to the cover as in the conventional example, the peripheral part of the window hole of the cover is used. Since it is not necessary to form a screw hole, the ratio of the opening size of the window hole to the outer size of the cover can be increased. If the outer size of the cover is the same, the light use efficiency can be improved. Also, unlike the case where the packing part is fixed with the body without using a fixture, there is no need to screw the cover to the body, so the screw is not exposed to the outer surface of the instrument body, Since it is not necessary to project a site | part on the side of an instrument main body, the beauty | look (designability) can be improved. In addition, by attaching the cover to the body, the fixture can be attached to the instrument body, eliminating the need for separate fastening, press-fitting, bonding, etc., and making assembly work easier. As a result, the assemblability can be improved.

請求項２の発明では、請求項１の発明において、上記パッキン部を上記カバーに仮固定する仮固定手段を備え、仮固定手段は、上記パッキン部の外側面と上記カバーにおける上記パッキン部の外側面との対向面とのいずれか一方に突設された嵌合突部と、上記パッキン部の上記外側面と上記カバーの上記対向面とのいずれか他方に凹設され嵌合凹部と凹凸嵌合する嵌合凹部とで構成されていることを特徴とする。 According to a second aspect of the present invention, in the first aspect of the invention, temporary fixing means for temporarily fixing the packing portion to the cover is provided, and the temporary fixing means includes an outer surface of the packing portion and an outer surface of the packing portion in the cover. A fitting protrusion projecting on either one of the facing surface and the side surface; and a fitting recess and an uneven fitting recessed on either the outer surface of the packing portion or the facing surface of the cover. It is characterized by comprising a mating recess to be mated.

請求項２の発明によれば、固定具の取り付け前においてもパッキン部をカバーに固定することができるから、カバーをボディに取り付ける際にパッキン部がカバーから脱落してしまうことなどを防止することができ、組立作業が容易に行えるようになる。 According to the invention of claim 2, since the packing part can be fixed to the cover even before the fixing tool is attached, it is possible to prevent the packing part from falling off the cover when the cover is attached to the body. As a result, assembly work can be easily performed.

請求項３の発明では、請求項１または２の発明において、上記パッキン部の内側面には、上記透光パネルの縁部が全周に亘って嵌め込まれた保持溝が形成され、上記パッキン部の外側面には、上記固定具の狭持部と凹凸嵌合する固定具取付用の取付凹部が形成され、取付凹部は、保持溝より後方に位置していることを特徴とする。 According to a third aspect of the present invention, in the first or second aspect of the present invention, a holding groove in which an edge of the translucent panel is fitted over the entire circumference is formed on the inner side surface of the packing portion. A fixing recess for attaching a fixture that fits with the holding portion of the fixture is formed on the outer surface of the fixture, and the mounting recess is located behind the holding groove.

請求項３の発明によれば、固定具の狭持部とパッキン部の取付凹部とを凹凸嵌合させることで、カバーをボディに取り付ける前でも、固定具をパッキン部に取り付けることができるから、カバーをボディに取り付ける際に固定具がパッキンやカバーから脱落してしまうことを防止することができ、組立作業が容易に行えるようになる。 According to the invention of claim 3, the fixture can be attached to the packing portion even before the cover is attached to the body by fitting the clamping portion of the fixture and the mounting recess of the packing portion to the unevenness. When the cover is attached to the body, the fixing tool can be prevented from falling off from the packing or the cover, and the assembling work can be easily performed.

請求項４の発明では、請求項１〜３のうちいずれか１項の発明において、上記パッキン当接部には、上記パッキン部の内側に入り込む形で上記窓孔を囲うはみ出し防止部が突設されていることを特徴とする。 According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects of the present invention, the packing contact portion is provided with a protrusion preventing portion that surrounds the window hole so as to enter the inside of the packing portion. It is characterized by being.

請求項４の発明によれば、パッキン部がパッキン当接部と固定具とによって前後方向に圧縮されて、前後方向に交差する方向に膨出するように変形した場合でも、はみ出し防止部によってパッキン部が窓孔内にはみ出すことが防止されるので、光源から放射された光がパッキン部によって遮られてしまうことを防止することができ、しかも、パッキン部が窓孔に臨むことによる美観の悪化を防止することができる。 According to the invention of claim 4, even when the packing portion is compressed in the front-rear direction by the packing abutting portion and the fixture, and is deformed so as to bulge in the direction intersecting with the front-rear direction, the packing is prevented by the protrusion preventing portion. Since the portion is prevented from protruding into the window hole, the light emitted from the light source can be prevented from being blocked by the packing portion, and the appearance is deteriorated due to the packing portion facing the window hole. Can be prevented.

本発明は、光の利用効率を向上できるとともに、組立作業性を向上でき、その上、美観を向上できるという効果を奏する。 INDUSTRIAL APPLICABILITY The present invention can improve the light utilization efficiency, improve the assembly workability, and further improve the aesthetic appearance.

本発明の一実施形態の照明器具は、たとえば、舞台やスタジオなどで利用されるスポットライトとして用いられるものであり、図１（ａ）に示すように、前面（図１（ａ）における左面）が開口され内部に光源Ｌが収納されるボディ２と、光源Ｌから放射された光を前方に出射させる窓孔３ａを有し当該ボディ２の前面側に取り付けられたカバー３とで構成された器具本体１と、カバー３の窓孔３ａを閉塞する形で器具本体１に収納された透光パネル４と、カバー３と透光パネル４との隙間から水などの流体が器具本体１内に浸入することを防止するパッキン部５と、透光パネル４およびパッキン部５をカバー３に固定する固定具６とが収納される。 The lighting apparatus of one embodiment of the present invention is used as, for example, a spotlight used in a stage or a studio, and as shown in FIG. 1 (a), the front surface (the left surface in FIG. 1 (a)). And a body 2 in which the light source L is housed, and a cover 3 having a window hole 3a for emitting light emitted from the light source L forward and attached to the front side of the body 2. Fluid such as water enters the instrument main body 1 from the gap between the instrument main body 1, the translucent panel 4 housed in the instrument main body 1 so as to close the window hole 3 a of the cover 3, and the cover 3 and the translucent panel 4. The packing part 5 which prevents intrusion and the fixture 6 which fixes the translucent panel 4 and the packing part 5 to the cover 3 are accommodated.

ボディ２は、前後方向を長径方向とする中空の楕円体を長径方向に直交する面で切断した形の半楕円体形（半卵形）に形成され、断面側が前面側として用いられる本体部２０を備える。本体部２０の外側面の中腹部には、器具本体１を所定箇所に取り付けるために使用される取付部２０ａが一体に突設される。本体部２０の開口（前面開口）の周縁部には、当該開口を囲う円筒状の突出部２１が一体に突設される。突出部２１の外周形状は、本体部２０の前面の外周形状より小さくしてあり、これによって、本体部２０の外側面と突出部２１の外側面との間には段差が形成される。この突出部２１の外側面には、図３（ａ）に示すように、雄ネジ部２１ａが周設される。雄ネジ部２１ａは、カバー３をボディ２に結合するために使用される。 The body 2 is formed in a semi-elliptical shape (half-oval shape) in which a hollow ellipsoid whose longitudinal direction is the longitudinal direction is cut by a plane orthogonal to the longitudinal direction, and the main body portion 20 whose cross-sectional side is used as the front side is provided. Prepare. An attachment portion 20a used to attach the instrument body 1 to a predetermined location is integrally provided on the middle part of the outer surface of the body portion 20 so as to project. A cylindrical projecting portion 21 that surrounds the opening is integrally provided on the periphery of the opening (front opening) of the main body 20. The outer peripheral shape of the protruding portion 21 is smaller than the outer peripheral shape of the front surface of the main body portion 20, whereby a step is formed between the outer surface of the main body portion 20 and the outer surface of the protruding portion 21. As shown in FIG. 3A, a male screw portion 21 a is provided around the outer surface of the protruding portion 21. The male screw portion 21 a is used for coupling the cover 3 to the body 2.

ところで、突出部２１の先端面（前端面）からは、固定具６を器具本体１に固定するための後側当接部２２が一体に延出される。後側当接部２２は、内側が突出部２１の内側と連通する形の円筒状に形成される。これら本体部２０、突出部２１、および後側当接部２２それぞれは中心軸が互いに一致している。 By the way, from the front end surface (front end surface) of the protrusion 21, a rear contact portion 22 for fixing the fixture 6 to the instrument body 1 is integrally extended. The rear contact portion 22 is formed in a cylindrical shape whose inner side communicates with the inner side of the protruding portion 21. Each of the main body 20, the projecting portion 21, and the rear contact portion 22 has a center axis that is the same.

カバー３は、図４に示すように、円筒状に形成された筒状部３０を有する。筒状部３０の外径は、ボディ２の本体部２０の前面の外径と略等しい大きさに設定される。一方、筒状部３０は、前端側の内径が後端側より小さくなっており（内側面に段差が形成されており）、これによって、筒状部３０の内部空間において内径が小さい空間部が、パッキン部５が挿入される第１の空間部３０ａとして用いられ、内径が大きい空間部がボディ２の前端部が挿入される第２の空間部３０ｂとして用いられる（図１（ａ）参照）。この筒状部３０では、第２の空間部３０ｂの底面部となる部分（換言すれば筒状部３０の後端側における第１の空間部３０ａの開口縁部）が、後側当接部２２とともに固定具６を器具本体１に固定する固定具保持手段を構成する前側当接部３０ｃとなる。 As shown in FIG. 4, the cover 3 has a cylindrical portion 30 formed in a cylindrical shape. The outer diameter of the cylindrical portion 30 is set to be approximately equal to the outer diameter of the front surface of the main body portion 20 of the body 2. On the other hand, the cylindrical portion 30 has an inner diameter on the front end side smaller than that on the rear end side (a step is formed on the inner side surface), so that a space portion with a small inner diameter is formed in the internal space of the cylindrical portion 30. The space portion having a large inner diameter is used as the second space portion 30b into which the front end portion of the body 2 is inserted (see FIG. 1A). . In this cylindrical part 30, the part which becomes the bottom face part of the second space part 30b (in other words, the opening edge part of the first space part 30a on the rear end side of the cylindrical part 30) is the rear contact part. 22 and the front abutting portion 30c constituting the fixture holding means for fixing the fixture 6 to the instrument body 1.

筒状部３０における第１の空間部３０ａの内側面（すなわち、カバー３におけるパッキン部５の外側面との対向面）には、パッキン部５をカバー３に仮固定するための嵌合凹部３０ｄが凹設される。嵌合凹部３０ｄは、第１の空間部３０ａの内側面を周方向に一周する形の溝状に形成される。さらに、第２の空間部３０ｂの内側面には、ボディ２の突出部２１に形成した雄ネジ部２１ａに対応する雌ネジ部３０ｅが周設される。したがって、カバー３をボディ２に結合する際には、ボディ２の後側当接部２２および突出部２１をカバー３の後方より第２の空間部３０ｂ内に挿入し、カバー３をその中心軸の回りに回転させて、ボディ２の雄ネジ部２１ａと、カバー３の雌ネジ部３０ｅとを螺合させればよい。 A fitting recess 30d for temporarily fixing the packing portion 5 to the cover 3 is provided on the inner surface of the first space portion 30a in the cylindrical portion 30 (that is, the surface of the cover 3 facing the outer surface of the packing portion 5). Is recessed. 30 d of fitting recessed parts are formed in the groove shape of the form which goes around the inner surface of the 1st space part 30a in the circumferential direction. Further, a female screw portion 30e corresponding to the male screw portion 21a formed on the protruding portion 21 of the body 2 is provided around the inner side surface of the second space portion 30b. Therefore, when the cover 3 is coupled to the body 2, the rear abutting portion 22 and the protruding portion 21 of the body 2 are inserted into the second space 30 b from the rear of the cover 3, and the cover 3 is inserted into its central axis. The male screw portion 21a of the body 2 and the female screw portion 30e of the cover 3 may be screwed together.

ところで、筒状部３０の内側面における前端部には、第１の空間部３０ａに挿入されたパッキン部５の前面と当接するパッキン当接部３１が、筒状部３０の内側に突出する形に形成される。パッキン当接部３１は、筒状部３０の内側面をその周方向に一周する形に形成されており、パッキン当接部３１で囲まれた空間部が、上述の窓孔３ａになる。ここで、パッキン当接部３１は、窓孔３ａが真円形状（正円形状）となり、かつその中心軸が筒状部３０の中心軸と一致するように形成される。また、パッキン当接部３１の前面は、筒状部３０の前面と同一平面上に位置している。さらに、パッキン当接部３１には、パッキン部５の内側に入り込む形で窓孔３ａを囲うはみ出し防止部３２が一体に突設される。はみ出し防止部３２は中心軸が窓孔３ａの中心軸と一致する形に形成された円筒状のものである。 By the way, a packing abutting portion 31 that abuts the front surface of the packing portion 5 inserted into the first space portion 30 a protrudes inside the cylindrical portion 30 at the front end portion on the inner side surface of the cylindrical portion 30. Formed. The packing contact part 31 is formed in a shape that makes a round of the inner side surface of the cylindrical part 30 in the circumferential direction, and the space surrounded by the packing contact part 31 becomes the above-described window hole 3a. Here, the packing contact portion 31 is formed such that the window hole 3 a has a perfect circle shape (a perfect circle shape) and the central axis thereof coincides with the central axis of the cylindrical portion 30. Further, the front surface of the packing contact portion 31 is located on the same plane as the front surface of the tubular portion 30. Further, an overhang prevention portion 32 that surrounds the window hole 3 a is formed integrally with the packing contact portion 31 so as to enter the inside of the packing portion 5. The protrusion preventing part 32 has a cylindrical shape formed so that its central axis coincides with the central axis of the window hole 3a.

上述したボディ２およびカバー３により器具本体１は構成される。なお、ボディ２およびカバー３は、例えば、アルミダイカストなどにより形成される。 The instrument body 1 is constituted by the body 2 and the cover 3 described above. The body 2 and the cover 3 are formed by, for example, aluminum die casting.

そして、器具本体１には、上述した光源Ｌ、透光パネル４、パッキン部５、および固定具６の他に、光源Ｌが装着されるソケットなどの光源保持具７や、光源Ｌから放射された光を前方に反射する反射板８、光源Ｌを点灯させる点灯装置（図示せず）などが収納される。なお、光源Ｌとしては、上記の例の他に、発光ダイオード（ＬＥＤ）や、有機ＥＬ素子などでも利用することができる。 In addition to the light source L, the translucent panel 4, the packing portion 5, and the fixture 6, the fixture body 1 is radiated from the light source holder 7 such as a socket to which the light source L is mounted and the light source L. A reflecting plate 8 that reflects the reflected light forward, a lighting device (not shown) that lights the light source L, and the like are housed. As the light source L, in addition to the above example, a light emitting diode (LED), an organic EL element, or the like can be used.

透光パネル４は、図３（ｂ）に示すように、ガラスなどの透光性（少なくとも光源Ｌから放射された光に対して透光性）を有する材料により厚みが一様な円盤状に形成される。また、透光パネル４の外径は、窓孔３ａの内径より大きく、これによって透光パネル４でカバー３の窓孔３ａを閉塞することが可能になっている。 As shown in FIG. 3B, the translucent panel 4 is formed into a disk shape having a uniform thickness by a material having translucency (eg, translucency for at least light emitted from the light source L) such as glass. It is formed. In addition, the outer diameter of the translucent panel 4 is larger than the inner diameter of the window hole 3 a, whereby the translucent panel 4 can close the window hole 3 a of the cover 3.

パッキン部５は、図３（ｂ）および図５に示すように、弾性体（例えば、ゴムなどのエラストマ）により円筒状に形成される。パッキン部５は前端側の外径が後端側の外径より大きくなっている。また、パッキン部５の内側面の前端部には、内側面を周方向に一周する形の溝よりなり、透光パネル４の縁部が全周に亘って嵌め込まれる保持溝５ａが形成される。この保持溝５ａにより透光パネル４は、図１（ａ）に示すように、パッキン部５の内側に嵌め込まれる。透光パネル４をパッキン部５の内側に嵌め込んだ状態では、パッキン部５における保持溝５ａより前側の部位が、透光パネル４の前面における縁部の全周と当接する前側パッキン部５０となり、パッキン部５における保持溝５ａより後側の部位が、透光パネル４の後面における縁部の全周と当接する後側パッキン部５１となる。 As shown in FIGS. 3B and 5, the packing portion 5 is formed in a cylindrical shape by an elastic body (for example, an elastomer such as rubber). The packing portion 5 has an outer diameter on the front end side larger than an outer diameter on the rear end side. In addition, a holding groove 5a is formed at the front end portion of the inner side surface of the packing portion 5 and includes a groove having a shape that goes around the inner side surface in the circumferential direction, and the edge of the translucent panel 4 is fitted over the entire circumference. . The translucent panel 4 is fitted inside the packing portion 5 by the holding groove 5a as shown in FIG. When the translucent panel 4 is fitted inside the packing part 5, the front part of the packing part 5 in front of the holding groove 5 a becomes the front packing part 50 that abuts the entire periphery of the edge part on the front surface of the translucent panel 4. The portion of the packing portion 5 on the rear side of the holding groove 5 a becomes the rear packing portion 51 that contacts the entire periphery of the edge portion on the rear surface of the translucent panel 4.

また、パッキン部５の外側面の前端側には、カバー３に形成された嵌合凹部３０ｄと凹凸嵌合する嵌合突部５ｂが一体に突設される。嵌合突部５ｂは、パッキン部５の外側面を周方向に一周する形に形成される。また、嵌合突部５ｂは、嵌合凹部３０ｄ内に嵌め込み易いように、前側を斜辺とする断面直角三角形状に形成される。ここで、嵌合突部５ｂと保持溝５ａとは、パッキン部５の径方向で重なる位置に形成されている。また、パッキン部５の後側パッキン部５１の外側面には、当該外側面を周方向に一周する形の溝状の取付凹部５ｃが形成される。したがって、取付凹部５ｃは保持溝５ａより後方に位置する。 In addition, a fitting protrusion 5b that is engaged with the fitting recess 30d formed in the cover 3 is integrally projected on the front end side of the outer surface of the packing portion 5. The fitting protrusion 5b is formed in a shape that goes around the outer surface of the packing part 5 in the circumferential direction. Further, the fitting protrusion 5b is formed in a right-angled triangular section with the front side as a hypotenuse so as to be easily fitted into the fitting recess 30d. Here, the fitting protrusion 5 b and the holding groove 5 a are formed at positions that overlap in the radial direction of the packing portion 5. In addition, a groove-shaped mounting recess 5c is formed on the outer surface of the rear packing portion 51 of the packing portion 5 so as to go around the outer surface in the circumferential direction. Therefore, the mounting recess 5c is located behind the holding groove 5a.

このような取付凹部５ｃは、固定具６をパッキン部５に取り付けるために使用される。ここで、取付凹部５ｃの前側の内側面とパッキン部５の前面との距離は、パッキン当接部３１と前側当接部３０ｃとの距離より遠くなるように形成される。すなわち、パッキン部５をカバー３の第１の空間部３０ａ内に挿入して、パッキン部５の前端面をパッキン当接部３１の後面に当接させ、かつパッキン部５に何ら負荷をかけていない状態においては、取付凹部５ｃによりパッキン部５に取り付けた固定具６が、前側当接部３０ｃに接触しないようにしている。 Such an attachment recess 5 c is used for attaching the fixture 6 to the packing part 5. Here, the distance between the front inner surface of the mounting recess 5c and the front surface of the packing portion 5 is formed to be longer than the distance between the packing contact portion 31 and the front contact portion 30c. That is, the packing portion 5 is inserted into the first space portion 30 a of the cover 3, the front end surface of the packing portion 5 is brought into contact with the rear surface of the packing contact portion 31, and no load is applied to the packing portion 5. In the absence, the fixing tool 6 attached to the packing part 5 by the attachment recessed part 5c is prevented from coming into contact with the front contact part 30c.

固定具６は、図３（ｂ）に示すように、金属材料により環状（円環状）に形成された押さえ金具である。固定具６は、図１（ｂ）に示すように、内縁側の部位からなり、カバー３のパッキン当接部３１との間でパッキン部５および透光パネル４を狭持する狭持部６ａと、外縁側の部位からなり、器具本体１に保持される保持部６ｂとを一体に備える。この固定具６の内径は後側パッキン部５１の内径より大きく透光パネル４の外径より小さい。また、固定具６の外径は、カバー３の第２の空間部３０ｂの内径より小さい。固定具６は、図１（ｂ）に示すように、狭持部６ａがパッキン部５の取付凹部５ｃに全周に亘って嵌め込まれることでパッキン部５に取り付けられる。そして、固定具６の狭持部６ａは、パッキン当接部３１との間で、パッキン部５および透光パネル４を狭持する。一方、固定具６の保持部６ｂは、前面に前側当接部３１ｃの後面が当接され、後面に後側当接部２２の前面が当接されることで、当接部３１ｃ，２２間で狭持され、これによって、固定具６は器具本体１に固定される。 As shown in FIG. 3 (b), the fixture 6 is a presser fitting formed in a ring shape (ring shape) from a metal material. As shown in FIG. 1 (b), the fixture 6 is composed of a portion on the inner edge side, and sandwiches the packing portion 5 and the translucent panel 4 with the packing contact portion 31 of the cover 3. And a holding portion 6b that is formed on the outer edge side and is held by the instrument main body 1. The inner diameter of the fixture 6 is larger than the inner diameter of the rear packing part 51 and smaller than the outer diameter of the translucent panel 4. Further, the outer diameter of the fixture 6 is smaller than the inner diameter of the second space portion 30 b of the cover 3. As shown in FIG. 1B, the fixture 6 is attached to the packing portion 5 by fitting the holding portion 6 a over the entire circumference of the mounting recess 5 c of the packing portion 5. And the clamping part 6a of the fixing tool 6 clamps the packing part 5 and the translucent panel 4 between the packing contact parts 31. FIG. On the other hand, the holding portion 6b of the fixture 6 has a contact between the contact portions 31c and 22 by contacting the rear surface of the front contact portion 31c with the front surface and the front surface of the rear contact portion 22 with the rear surface. Thus, the fixture 6 is fixed to the instrument body 1.

次に、本実施形態の照明器具の組立方法について説明する。まず、ボディ２に、光源保持具７、反射板８、点灯装置（図示せず）などを収納する。このようにボディ２に光源保持具７などを収納した後には、光源Ｌをボディ２に収納した光源保持具７に装着する。なお、光源Ｌを光源保持具７に装着するタイミングは、ボディ２に光源保持具７を収納した後、カバー３をボディ２に取り付ける前であればいつでもよい。 Next, the assembling method of the lighting fixture of this embodiment is demonstrated. First, the light source holder 7, the reflecting plate 8, a lighting device (not shown) and the like are stored in the body 2. After the light source holder 7 and the like are stored in the body 2 in this way, the light source L is mounted on the light source holder 7 stored in the body 2. The timing of mounting the light source L on the light source holder 7 may be any time after the light source holder 7 is stored in the body 2 and before the cover 3 is attached to the body 2.

一方、カバー３には、透光パネル４、パッキン部５、および固定具６を収納する。ここで、カバー３に、透光パネル４、パッキン部５、固定具６を収納するにあたっては、予めパッキン部５に透光パネル４および固定具６を取り付けておく。すなわち、透光パネル４および固定具６を取り付けたパッキン部５を、カバー３の後方より第１の空間部３０ａに挿入する。このとき、パッキン部５の前面（前側パッキン部５０の前面）がパッキン当接部３１の後面に当接し、かつパッキン部５の嵌合突部５ｂとカバー３の嵌合凹部３０ｄとが凹凸嵌合するまで、パッキン部５を第１の空間部３０ａ内に押し込む。 On the other hand, the cover 3 accommodates the translucent panel 4, the packing portion 5, and the fixture 6. Here, when the translucent panel 4, the packing part 5, and the fixture 6 are accommodated in the cover 3, the translucent panel 4 and the fixture 6 are attached to the packing part 5 in advance. That is, the packing part 5 to which the translucent panel 4 and the fixture 6 are attached is inserted into the first space part 30 a from the back of the cover 3. At this time, the front surface of the packing portion 5 (the front surface of the front packing portion 50) is in contact with the rear surface of the packing contact portion 31, and the fitting projection 5b of the packing portion 5 and the fitting recess 30d of the cover 3 are unevenly fitted. The packing portion 5 is pushed into the first space portion 30a until they are aligned.

これによって、パッキン当接部３１は、透光パネル４側とは反対側においてパッキン部５（前側パッキン部５０）の全周と当接する。さらに、パッキン部５がカバー３に仮固定されるとともに、透光パネル４および固定具６がパッキン部５を介してカバー３に仮固定される。そのため、カバー３から、パッキン部５や、透光パネル４、固定具６が脱落することが防止される。なお、カバー３に透光パネル４などの所定の部品を収納する作業は、ボディ２に光源保持具７などの所定の部品を収納する作業と並行あるいは前後して行えばよい。 As a result, the packing contact portion 31 contacts the entire circumference of the packing portion 5 (the front packing portion 50) on the side opposite to the translucent panel 4 side. Further, the packing part 5 is temporarily fixed to the cover 3, and the translucent panel 4 and the fixture 6 are temporarily fixed to the cover 3 via the packing part 5. Therefore, the packing part 5, the translucent panel 4, and the fixture 6 are prevented from falling off from the cover 3. The operation of storing predetermined parts such as the translucent panel 4 in the cover 3 may be performed in parallel with or before or after the operation of storing predetermined parts such as the light source holder 7 in the body 2.

上記のようにボディ２およびカバー３それぞれに所定の部品を収納した後には、ボディ２の前端部（後側当接部２２および突出部２１）をカバー３の後方より第２の空間部３０ｂ内に挿入し、カバー３（あるいはボディ２）をその中心軸の回りに回転させて、ボディ２の雄ネジ部２１ａと、カバー３の雌ネジ部３０ｅとを螺合させ、ボディ２とカバー３とを結合する。 After the predetermined parts are stored in the body 2 and the cover 3 as described above, the front end portion (the rear contact portion 22 and the protruding portion 21) of the body 2 is placed in the second space 30b from the rear of the cover 3. The cover 3 (or the body 2) is rotated around its central axis, and the male screw portion 21a of the body 2 and the female screw portion 30e of the cover 3 are screwed together. Join.

このとき、固定具６は、後側当接部２２により押圧されて、前側当接部３０ｃに当接する位置まで前進させられ、これによって、固定具６は前側当接部３０と後側当接部２２との間で狭持される（つまり器具本体１に固定される）。また、上述したように固定具６が前進させられることにより、パッキン部５が固定具６の狭持部６ａ（取付凹部５ｃ内に挿入されている部分）により前側に押圧される。そのため、パッキン部５は、前後方向に圧縮された状態で、パッキン当接部３１と固定具６（固定具６の狭持部６ａ）との間に保持される。これによって、パッキン部５の前側パッキン部５０は、パッキン当接部３１および透光パネル４それぞれに所定の接圧で接触して、カバー３と透光パネル４との隙間が閉塞され、カバー３の窓孔３ａから水などが入り込むことが防止される。一方、後側パッキン部５１は、透光パネル４の後面に所定の接圧で接触するから、さらなる防水性の向上が図れる。また、パッキン部５がパッキン当接部３１と固定具６との間で狭持されることによって前後方向に圧縮された際には、パッキン部５は、前後方向に交差する方向に膨出するように変形するが、パッキン部５の内側面にはみ出し防止部３２が当接することによって、パッキン部５が窓孔３ａ内にはみ出すことが防止される。また、上述したようにしてボディ２とカバー３とを結合する際には、ボディ２の突出部２１に弾性体により環状に形成されたパッキン９を被嵌しておく。ボディ２とカバー３とを結合した際には、パッキン９は、図１（ａ）に示すように、ボディ２の本体部２０の前面とカバー３の筒状部３０の後面との間で狭持されて、パッキン９がボディ２およびカバー３それぞれに密着するから、器具本体１の防水性がさらに向上する。 At this time, the fixture 6 is pressed by the rear contact portion 22 and advanced to a position where it comes into contact with the front contact portion 30c, whereby the fixture 6 contacts the front contact portion 30 and the rear contact. It is pinched between the parts 22 (that is, fixed to the instrument body 1). Further, as described above, when the fixture 6 is advanced, the packing portion 5 is pressed forward by the holding portion 6a of the fixture 6 (the portion inserted into the mounting recess 5c). Therefore, the packing part 5 is hold | maintained between the packing contact part 31 and the fixing tool 6 (clamping part 6a of the fixing tool 6) in the state compressed in the front-back direction. As a result, the front packing portion 50 of the packing portion 5 comes into contact with the packing contact portion 31 and the translucent panel 4 with a predetermined contact pressure, so that the gap between the cover 3 and the translucent panel 4 is closed. Water or the like is prevented from entering through the window hole 3a. On the other hand, since the rear packing part 51 is in contact with the rear surface of the translucent panel 4 with a predetermined contact pressure, further waterproofing can be improved. When the packing part 5 is compressed in the front-rear direction by being sandwiched between the packing contact part 31 and the fixture 6, the packing part 5 swells in a direction intersecting with the front-rear direction. However, the protrusion part 32 abuts on the inner side surface of the packing part 5 to prevent the packing part 5 from protruding into the window hole 3a. Further, when the body 2 and the cover 3 are coupled as described above, the packing 9 formed in an annular shape by an elastic body is fitted on the protruding portion 21 of the body 2. When the body 2 and the cover 3 are joined, the packing 9 is narrowed between the front surface of the main body portion 20 of the body 2 and the rear surface of the cylindrical portion 30 of the cover 3 as shown in FIG. Since the packing 9 is held in close contact with the body 2 and the cover 3, the waterproofness of the instrument body 1 is further improved.

以上により図１，２に示す照明器具が完成する。そして、この照明器具は、前面が開口され内部に光源Ｌが収納されるボディ２、および光源Ｌから放射された光を前方に出射させる窓孔３ａを有し当該ボディ２の前面側に取り付けられたカバー３により構成された器具本体１と、カバー３の窓孔３ａを閉塞する形で器具本体１に収納された透光パネル４と、弾性体により窓孔３ａを囲う形に形成され透光パネル４の前面における縁部の全周と当接する部位（前側パッキン部５０）を有したパッキン部５と、パッキン部５および透光パネル４をカバー３に固定する固定具６とを備え、カバー３は、透光パネル４側とは反対側においてパッキン部５の前側パッキン部５０の全周と当接するパッキン当接部３１を有し、固定具６は、カバー３のパッキン当接部３１との間でパッキン部５および透光パネル４を狭持する狭持部６ａと、器具本体１に保持される保持部６ｂとを一体に備え、器具本体１は、固定具６を保持する固定具保持手段を備え、固定具保持手段は、固定具６の保持部６ｂの前面に当接する形にカバー３に形成された前側当接部３０ｃと、固定具６の保持部６ｂの後面に当接する形でボディ２に形成され前側当接部３０ｃとの間で保持部６ｂを狭持する後側当接部２２とで構成される。 The lighting fixture shown in FIGS. 1 and 2 is thus completed. And this lighting fixture is attached to the front side of the said body 2 which has the window 2 3 which emits the light radiated | emitted forward from the body 2 with which the front surface is opened and the light source L is accommodated in the inside. The instrument body 1 constituted by the cover 3, the translucent panel 4 housed in the instrument body 1 so as to close the window hole 3 a of the cover 3, and the translucent panel formed to surround the window hole 3 a by an elastic body. A packing portion 5 having a portion (front packing portion 50) that contacts the entire periphery of the edge portion on the front surface of the panel 4, and a fixture 6 that fixes the packing portion 5 and the translucent panel 4 to the cover 3; 3 has a packing abutting portion 31 that abuts the entire circumference of the front packing portion 50 of the packing portion 5 on the side opposite to the translucent panel 4 side, and the fixture 6 is connected to the packing abutting portion 31 of the cover 3. Packing part 5 and light transmission between A nipping portion 6a for nipping the flannel 4 and a holding portion 6b held by the device main body 1 are integrally provided, and the device main body 1 includes fixing device holding means for holding the fixing device 6, and fixing device holding means. Are formed on the body 2 so as to be in contact with the rear surface of the holding portion 6b of the fixing tool 6 and the front contact portion 30c formed on the cover 3 so as to be in contact with the front surface of the holding portion 6b of the fixing tool 6. The rear contact part 22 is configured to hold the holding part 6b with the contact part 30c.

そのため、本実施形態の照明器具によれば、カバー３をボディ２に取り付けて、固定具６の保持部６ｂを、カバー３に形成した前側当接部３０ｃとボディ２に形成した後側当接部２２との間で狭持することによって、固定具６を器具本体１に取り付けることができるので、固定具６を器具本体１にネジ止めする必要がなくなるから、例えば、図６に示す従来例のように固定具４００をカバー１２０に固定するためにカバー１２０の窓孔１２１の周縁部にネジ孔１２２を形成しなくて済むから、カバー３の外形サイズに対する窓孔３ａの開口サイズの比率を大きくすることができて、カバー３の外形サイズが同じであれば、光の利用効率を向上できる。 Therefore, according to the lighting apparatus of the present embodiment, the cover 3 is attached to the body 2, and the holding portion 6 b of the fixture 6 is a front-side contact portion 30 c formed on the cover 3 and a rear-side contact formed on the body 2. Since the fixing tool 6 can be attached to the instrument main body 1 by sandwiching it with the portion 22, it is not necessary to screw the fixing tool 6 to the instrument main body 1. For example, the conventional example shown in FIG. In order to fix the fixture 400 to the cover 120 as described above, it is not necessary to form the screw hole 122 at the peripheral edge portion of the window hole 121 of the cover 120. Therefore, the ratio of the opening size of the window hole 3a to the outer size of the cover 3 is If the outer size of the cover 3 is the same, the light utilization efficiency can be improved.

また、カバー３をボディ２にネジ止めする必要がないので、図８に示す従来例のように固定具を用いずにボディ１１０でパッキン部３００を固定するものとは異なり、ネジ（取付ネジ６００、図８（ａ），（ｂ）参照）が器具本体１１０の外面に露出することがなく、ネジ止めのための部位（突出部１１２，１２４、図８（ａ）参照）を器具本体１１０の側面に突設する必要もないからいから、美観（意匠性）を向上できる。 Further, since it is not necessary to screw the cover 3 to the body 2, unlike the conventional example shown in FIG. 8, unlike the case where the packing part 300 is fixed by the body 110 without using a fixture, screws (mounting screws 600) are used. 8 (a) and 8 (b)) are not exposed on the outer surface of the instrument body 110, and the parts for screwing (projections 112, 124, see FIG. 8 (a)) are provided on the instrument body 110. Since it is not necessary to project on the side, aesthetics (designability) can be improved.

その上、カバー３をボディ２に取り付けることによって、固定具６を器具本体１に取り付けることができるので、固定具のねじ止め（図６，図８参照）や、圧入（図７参照）、接着などを別途行う必要がなくなり、組立作業が容易に行えるようになるから、組立性を向上できる。 In addition, by attaching the cover 3 to the body 2, the fixture 6 can be attached to the instrument body 1, so that the fixture can be screwed (see FIGS. 6 and 8), press-fitted (see FIG. 7), and bonded. It is no longer necessary to separately perform the above and the assembly work can be easily performed, so that the assemblability can be improved.

また、本実施形態の照明器具では、固定具６は、前側当接部３０ｃに当接した位置から前方には進むことができないので、パッキン部５の圧縮代を、パッキン当接部３１の後面と前側当接部３０ｃの後面との距離によって決定することができる。そのため、パッキン当接部３１の後面と前側当接部３０ｃの後面との距離を好適な距離に設定しておくことで、パッキン部５に無理な力がかからないようにすることができて、パッキン部５の復元性を妨げたり（塑性変形を起こすような力が加えられたり）、透光パネル４に過剰な力が加えられて透光パネル４が破損したりすることを防止することができる。 Moreover, in the lighting fixture of this embodiment, since the fixture 6 cannot advance forward from the position where it abuts on the front contact portion 30 c, the compression allowance of the packing portion 5 is changed to the rear surface of the packing contact portion 31. And the distance from the rear surface of the front contact portion 30c. Therefore, by setting the distance between the rear surface of the packing contact portion 31 and the rear surface of the front contact portion 30c to a suitable distance, it is possible to prevent an excessive force from being applied to the packing portion 5, and the packing It is possible to prevent the restoring property of the portion 5 from being hindered (a force that causes plastic deformation is applied) or the light transmitting panel 4 is damaged due to an excessive force applied to the light transmitting panel 4. .

また、本実施形態の照明器具では、パッキン部５が弾性体により形成され、固定具６が金属製のものである。そのため、ボディ２の後側当接部２２と固定具６との間に働く摩擦力は、固定具６とパッキン部５との間に働く摩擦力に比べて小さくなるので、カバー３とボディ２とを結合する際に、固定具６は、後側当接部２２によって回転させられることなく前進する。そのため、カバー３とボディ２とを結合する際に、パッキン部５が無理に回転させられて、ねじれることなく、前後方向に圧縮することができるようになり、パッキン部５のねじれなどに起因する防水性（密閉性）の悪化を防止できる。なお、固定具６の材料は金属材料に限定されず、剛性が高い樹脂材料などを用いてもよく、さらに、パッキン部５との間の摩擦力が大きく、後側当接部２２との間の摩擦力が小さくなるような材料を用いることが好ましい。また、固定具６は、パッキン部５との間の摩擦力が大きく、後側当接部２２との間の摩擦力が小さくなるような形状とすることが好ましい。 Moreover, in the lighting fixture of this embodiment, the packing part 5 is formed with an elastic body, and the fixing tool 6 is a metal thing. Therefore, the frictional force acting between the rear contact portion 22 of the body 2 and the fixture 6 is smaller than the frictional force acting between the fixture 6 and the packing portion 5, and therefore the cover 3 and the body 2. And the fixture 6 moves forward without being rotated by the rear contact portion 22. Therefore, when the cover 3 and the body 2 are joined, the packing portion 5 is forcibly rotated and can be compressed in the front-rear direction without being twisted, which is caused by the twist of the packing portion 5 or the like. Deterioration of waterproofness (sealing property) can be prevented. The material of the fixture 6 is not limited to a metal material, and a resin material having high rigidity may be used. Furthermore, the frictional force with the packing portion 5 is large, and the gap between the fixing member 6 and the rear contact portion 22 is high. It is preferable to use a material that reduces the frictional force. In addition, it is preferable that the fixture 6 has a shape such that the frictional force with the packing portion 5 is large and the frictional force with the rear contact portion 22 is small.

また、本実施形態の照明器具は、カバー３に形成した嵌合凹部３０ｄと、パッキン部５に形成され当該嵌合凹部３０ｄと凹凸嵌合する嵌合突部５ｂとで構成され、パッキン部５をカバー３に仮固定する仮固定手段を備えるので、固定具６の取り付け前においてもパッキン部５をカバー３に固定することができるから、カバー３をボディ２に取り付ける際にパッキン部５がカバーから脱落してしまうことなどを防止することができ、組立作業が容易に行えるようになる。 Moreover, the lighting fixture of this embodiment is comprised by the fitting recessed part 30d formed in the cover 3, and the fitting protrusion 5b formed in the packing part 5, and the fitting recessed part 30d and uneven | corrugated fitting, The packing part 5 Since the temporary fixing means for temporarily fixing the cover 3 to the cover 3 is provided, the packing portion 5 can be fixed to the cover 3 even before the fixture 6 is attached. Can be prevented from falling off, and assembly work can be easily performed.

なお、本実施形態の照明器具では、カバー３に形成した嵌合凹部３０ｄと、パッキン部５に形成した嵌合突部５ｂとで仮固定手段を構成しているが、カバー３側に嵌合突部５ｂを設け、パッキン部５側に嵌合凹部３０ｄを設けるようにしてもよい。すなわち、仮固定手段は、パッキン部５の外側面とカバー３におけるパッキン部５の外側面との対向面（本実施形態の場合は第１の空間部３０ａの内側面）とのいずれか一方に突設された嵌合突部と、パッキン部５の上記外側面とカバー３の上記対向面とのいずれか他方に凹設され嵌合凹部と凹凸嵌合する嵌合凹部とで構成されていればよい。 In addition, in the lighting fixture of this embodiment, although the temporary fixing means is comprised by the fitting recessed part 30d formed in the cover 3, and the fitting protrusion 5b formed in the packing part 5, it fits on the cover 3 side. The protrusion 5b may be provided, and the fitting recess 30d may be provided on the packing part 5 side. That is, the temporary fixing means is provided on one of the outer surface of the packing portion 5 and the opposite surface of the cover 3 to the outer surface of the packing portion 5 (in this embodiment, the inner surface of the first space portion 30a). It is composed of a protruding fitting protrusion and a fitting recess that is recessed on either side of the outer surface of the packing portion 5 and the facing surface of the cover 3 and that fits into and out of the fitting recess. That's fine.

また、本実施形態の照明器具におけるパッキン部５の内側面には、透光パネル４の縁部が全周に亘って嵌め込まれる保持溝５ａが形成されているから、パッキン部５に透光パネル４を仮固定することができる。さらに、パッキン部５の外側面には、固定具６の狭持部６ａと凹凸嵌合する固定具取付用の取付凹部５ｃが形成されているから、固定具６をパッキン部５に仮固定することができる。このように、パッキン部５に透光パネル４および固定具６を仮固定しておけば、カバー３をボディ２に取り付ける際に固定具６や透光パネル４がパッキン部５やカバー３から脱落してしまうことを防止することができ、組立作業が容易に行えるようになる。 Moreover, since the holding groove 5a in which the edge part of the translucent panel 4 is fitted over the perimeter is formed in the inner surface of the packing part 5 in the lighting fixture of this embodiment, the translucent panel is provided in the packing part 5. 4 can be temporarily fixed. Furthermore, since the mounting recess 5c for fixing tool fitting to be unevenly fitted with the holding portion 6a of the fixing tool 6 is formed on the outer surface of the packing part 5, the fixing tool 6 is temporarily fixed to the packing part 5. be able to. Thus, if the translucent panel 4 and the fixture 6 are temporarily fixed to the packing part 5, when the cover 3 is attached to the body 2, the fixture 6 and the translucent panel 4 fall off from the packing part 5 and the cover 3. Can be prevented, and the assembly work can be easily performed.

また、カバー３とボディ２とを結合した際に、パッキン部５がパッキン当接部３１と固定具６とによって前後方向に圧縮されて、前後方向に交差する方向に膨出するように変形した場合でも、はみ出し防止部３２によってパッキン部５が窓孔３ａ内にはみ出すことが防止されるので、光源Ｌから放射された光がパッキン部５によって遮られてしまうことを防止することができ、しかも、パッキン部５が窓孔３ａに臨むことによる美観の悪化を防止することができる。 Further, when the cover 3 and the body 2 are joined, the packing part 5 is compressed in the front-rear direction by the packing contact part 31 and the fixture 6 and deformed so as to bulge in a direction intersecting the front-rear direction. Even in this case, since the packing portion 5 is prevented from protruding into the window hole 3a by the protrusion preventing portion 32, the light emitted from the light source L can be prevented from being blocked by the packing portion 5. Moreover, the deterioration of the beauty | look by the packing part 5 facing the window hole 3a can be prevented.

なお、本実施形態の照明器具は、あくまでも本発明の一実施形態に過ぎないものであって、本発明の技術的範囲を本実施形態のものに限定する趣旨ではなく、本発明の趣旨を逸脱しない範囲での変更は当然に行える。例えば、本実施形態におけるカバー３は、前側当接部３０ｃにおける固定具６との当接面（図１（ｂ）における後面）が、パッキン当接部３１におけるパッキン部５との当接面（図１（ｂ）における後面）より後方に位置しているが、カバー３および固定具６の形状を適宜選択することによって、前側当接部３０ｃの上記当接面が、パッキン当接部３１の上記当接面より前方に位置するようにしてもよい。また、本実施形態におけるパッキン部５は、前側パッキン部５０と、後側パッキン部５１とを連続一体に備えるものであるが、これらは別体であってもよい。また、後側パッキン部５１は、必ずしも設ける必要はなく、固定具６の狭持部６ａが透光パネル４の後面に当接するようにしてもよい。ただし、透光パネル４の保護と、防水性を考慮すれば、後側パッキン部５１を設けるほうが好ましい。また、器具本体１などの各部品の外形形状は、本発明の効果を奏することができる範囲内で変更することができる。 Note that the lighting apparatus of the present embodiment is merely one embodiment of the present invention, and is not intended to limit the technical scope of the present invention to that of the present embodiment, but departs from the spirit of the present invention. Of course, changes can be made within the range that is not. For example, in the cover 3 in the present embodiment, the contact surface (the rear surface in FIG. 1B) with the fixture 6 in the front contact portion 30 c is the contact surface with the packing portion 5 in the packing contact portion 31 ( Although it is located rearward from the rear surface in FIG. 1B, the contact surface of the front contact portion 30 c is made to correspond to the packing contact portion 31 by appropriately selecting the shapes of the cover 3 and the fixture 6. You may make it locate ahead of the said contact surface. Moreover, although the packing part 5 in this embodiment is equipped with the front side packing part 50 and the back side packing part 51 continuously integrally, these may be a different body. Further, the rear packing portion 51 is not necessarily provided, and the holding portion 6 a of the fixture 6 may be in contact with the rear surface of the translucent panel 4. However, in consideration of protection of the translucent panel 4 and waterproofness, it is preferable to provide the rear packing portion 51. Moreover, the external shape of each components, such as the instrument main body 1, can be changed within the range which can show the effect of this invention.

本発明の一実施形態の照明器具を示し、（ａ）は断面図、（ｂ）は同図（ａ）にＰで示す部位の拡大図である。The lighting fixture of one Embodiment of this invention is shown, (a) is sectional drawing, (b) is an enlarged view of the site | part shown by P in the figure (a). 同上の照明器具の斜視図である。It is a perspective view of a lighting fixture same as the above. 同上の照明器具の組立方法の説明図である。It is explanatory drawing of the assembly method of a lighting fixture same as the above. 同上におけるカバーの斜視図である。It is a perspective view of the cover in the same as the above. 同上におけるパッキンの斜視図である。It is a perspective view of packing in the same as the above. 従来例の照明器具を示し、（ａ）は断面図、（ｂ）は正面図である。The lighting fixture of a prior art example is shown, (a) is sectional drawing, (b) is a front view. 他の従来例の照明器具を示し、（ａ）は断面図、（ｂ）は正面図である。The lighting fixture of another conventional example is shown, (a) is sectional drawing, (b) is a front view. 他の従来例の照明器具を示し、（ａ）は断面図、（ｂ）は正面図である。The lighting fixture of another conventional example is shown, (a) is sectional drawing, (b) is a front view.

Explanation of symbols

１器具本体
２ボディ
３カバー
３ａ窓孔
４透光パネル
５パッキン部
５ａ保持溝
５ｂ嵌合突部
５ｃ取付凹部
６固定具
６ａ狭持部
６ｂ保持部
２２後側当接部
３０ｃ前側当接部
３０ｄ嵌合凹部
３１パッキン当接部
３２はみ出し防止部
Ｌ光源 DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Body 3 Cover 3a Window hole 4 Translucent panel 5 Packing part 5a Holding groove 5b Fitting protrusion 5c Mounting recessed part 6 Fixing tool 6a Holding part 6b Holding part 22 Back side contact part 30c Front side contact part 30d Fitting recess 31 Packing contact part 32 Protrusion prevention part L Light source

Claims

A body having a front surface opened and a light source housed therein; a body having a window hole for emitting light emitted from the light source forward; and a cover attached to the front side of the body; A translucent panel housed in the instrument main body so as to close the window hole, and a packing part formed in a shape surrounding the window hole by an elastic body and having a portion that contacts the entire periphery of the edge portion on the front surface of the translucent panel; A fixing part for fixing the packing part and the translucent panel to the cover,
The cover has a packing abutting portion that abuts the entire circumference of the portion of the packing portion on the side opposite to the translucent panel side,
The fixing device integrally includes a sandwiching portion that sandwiches the packing portion and the translucent panel with the packing contact portion of the cover, and a holding portion that is held by the instrument body.
The instrument body includes a fixture holding means for holding the fixture,
The fixing device holding means includes a front contact portion formed on the cover so as to contact the front surface of the holding portion of the fixing device, and a front contact portion formed on the body in contact with the rear surface of the holding portion of the fixing device. And a rear abutting portion that holds the holding portion therebetween.

A temporary fixing means for temporarily fixing the packing part to the cover;
The temporary fixing means includes a fitting protrusion protruding from one of the outer surface of the packing portion and the surface of the cover facing the outer surface of the packing portion, the outer surface of the packing portion, and the The lighting fixture according to claim 1, wherein the lighting fixture is configured by a fitting concave portion and a fitting concave portion that are concavely and convexly fitted to either one of the facing surfaces of the cover.

On the inner surface of the packing part, a holding groove is formed in which the edge of the translucent panel is fitted over the entire circumference.
On the outer surface of the packing portion, a mounting recess for fixing fixtures that fits with the clamping portion of the fixture is formed,
The lighting fixture according to claim 1, wherein the mounting recess is located behind the holding groove.

The illumination according to any one of claims 1 to 3, wherein the packing contact portion is provided with a protrusion preventing portion that surrounds the window hole so as to enter the inside of the packing portion. Instruments.