JP2011034689A - Lighting fixture and its manufacturing method - Google Patents

Lighting fixture and its manufacturing method Download PDF

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JP2011034689A
JP2011034689A JP2009177077A JP2009177077A JP2011034689A JP 2011034689 A JP2011034689 A JP 2011034689A JP 2009177077 A JP2009177077 A JP 2009177077A JP 2009177077 A JP2009177077 A JP 2009177077A JP 2011034689 A JP2011034689 A JP 2011034689A
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screw
metal
lighting fixture
hole
metallic
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JP5276546B2 (en
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Takashi Ono
隆 小野
Mitsuhiro Ishii
光浩 石井
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Hitachi Lighting Ltd
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Hitachi Lighting Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting fixture capable of easily and surely obtaining ground of a metallic reflecting plate of the lighting fixture covered with an insulation coating film, and to provide a manufacturing method of the same. <P>SOLUTION: The lighting fixture includes the metallic reflecting plate 10 of the lighting fixture with a first prepared screw-hole covered with the insulation coating film, a metallic lighting fixture body 20 with a second prepared screw hole to be fitted to the metallic reflecting plate 10 of the lighting fixture, and a metallic screw thread 30 capable of tapping which has a shaft part with an external thread ridge to tap the prepared screw-holes and a head part having a larger diameter than that of the prepared screw-holes. By the external thread screw ridge of the shaft part of the metallic screw thread capable of tapping, an internal thread ridge is formed in the first prepared screw-hole, and then made to be crushed so that the metallic screw thread 30 capable of tapping is brought to an idling condition. Further, the external thread ridge of the shaft part of the metallic screw thread capable of tapping forms an internal thread ridge in the second prepared screw-hole to abut and fix the metallic screw thread 30 capable of tapping so that the metallic reflecting plate 10 of the lighting fixture is fitted to the metallic lighting fixture body 20. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、絶縁性塗装膜によって覆われている金属製照明器具反射板とそれを装着した金属製照明器具本体とを備えた照明器具およびその製造方法に関するものである。   The present invention relates to a luminaire including a metal luminaire reflection plate covered with an insulating coating film and a metal luminaire main body on which the metal luminaire reflector is mounted, and a method for manufacturing the same.

この種の照明器具においては感電保護のため、金属製照明器具本体に具備された電源線接続器を介し電源線にて接地して金属製照明器具本体のアースを得るとともに、金属製照明器具反射板を金属製照明器具本体に固定する金属製ネジを介して金属製照明器具反射板のアースを得る。この場合、金属製照明器具反射板が樹脂塗装膜によって覆われているため、金属製照明器具本体と導通を得るには塗装膜を剥離する必要がある。金属製照明器具反射板の金属製照明器具本体への装着用のネジ孔は貫通孔になっており、汎用の金属製ネジでは塗装膜を剥離することができない。このため、例えば歯付の特殊ネジ（特許文献１）を使用すること、または汎用ネジとの中間に歯付座金（特許文献２）を挿入することなどが考えられる。   In order to protect against electric shock, this type of lighting fixture is grounded by the power line via the power line connector provided in the metal lighting fixture body to obtain the ground of the metal lighting fixture body and the reflection of the metal lighting fixture. The metal lighting fixture reflector is grounded through a metal screw that fixes the plate to the metal lighting fixture body. In this case, since the metallic lighting fixture reflector is covered with the resin coating film, it is necessary to peel off the coating membrane to obtain electrical connection with the metallic lighting fixture body. The screw hole for attaching the metal lighting fixture reflector to the metal lighting fixture main body is a through hole, and the paint film cannot be peeled off by a general-purpose metal screw. For this reason, for example, it is conceivable to use a toothed special screw (Patent Document 1) or insert a toothed washer (Patent Document 2) in the middle of the general-purpose screw.

特開平１１−２４１７０７号公報Japanese Patent Laid-Open No. 11-241707 特開平１１−３３６７３８号公報JP 11-336738 A

本発明の目的は、絶縁性塗装膜によって覆われている金属製照明器具反射板のアースを容易かつ確実に得ることができる照明器具およびその製造方法を提供することにある。   The objective of this invention is providing the lighting fixture which can obtain the earth | ground of the metal lighting fixture reflector covered with the insulating coating film easily and reliably, and its manufacturing method.

本発明は、上記目的を達成するために、以下の照明器具およびその製造方法を提供する。
（１）絶縁性塗装膜によって覆われている金属製照明器具反射板と、前記金属製照明器具反射板が装着される金属製照明器具本体と、前記金属製照明器具反射板のネジ下孔において雌ネジ山を成形しおよび破損させて空回り状態とされ、かつ前記金属製照明器具本体のネジ下孔において雌ネジ山を成形して嵌め合わせ固定された、前記金属製照明器具反射板を前記金属製照明器具本体に装着するネジ立て可能金属製ネジとを備えたことを特徴とする照明器具。
（２）前記金属製照明器具本体が、絶縁性塗装膜によって覆われていることを特徴とする上記（１）記載の照明器具。
（３）第１のネジ下孔を有する、絶縁性塗装膜によって覆われている金属製照明器具反射板と、第２のネジ下孔を有する、前記金属製照明器具反射板が装着される金属製照明器具本体と、前記第１および第２のネジ下孔を成形する雄ネジ山をもつ軸部と前記ネジ下孔径よりも大きい頭部とを有するネジ立て可能金属製ネジとを用意し、前記ネジ立て可能金属製ネジ軸部の雄ネジ山により、前記第１のネジ下孔において雌ネジ山を成形しおよび破損させて前記ネジ立て可能金属製ネジを空回り状態とし、かつ前記第２のネジ下孔において雌ネジ山を成形して前記ネジ立て可能金属製ネジを嵌め合わせ固定して、前記金属製照明器具反射板を前記金属製照明器具本体に装着することを特徴とする照明器具の製造方法。 In order to achieve the above object, the present invention provides the following lighting fixtures and manufacturing methods thereof.
(1) In a metal lighting fixture reflecting plate covered with an insulating coating film, a metal lighting fixture main body to which the metal lighting fixture reflecting plate is mounted, and a screw hole in the metal lighting fixture reflecting plate The metal lighting fixture reflector is formed by forming and breaking the female screw thread so as to be in an idle state, and is formed by fitting and fixing the female screw thread in the screw hole of the metal lighting fixture body. A luminaire comprising a metal screw capable of being tapped to be mounted on a luminaire main body.
(2) The lighting fixture according to (1), wherein the metal lighting fixture body is covered with an insulating coating film.
(3) A metal lighting fixture reflecting plate covered with an insulating coating film having a first screw lower hole and a metal to which the metal lighting fixture reflecting plate having a second screw lower hole is attached. Preparing a lighting fixture main body, a shaft portion having a male screw thread forming the first and second screw holes, and a screwable metal screw having a head larger than the screw hole diameter; The male thread of the threadable metal screw shaft portion forms and breaks a female thread in the first screw pilot hole to make the threadable metal screw idle, and the second An illuminating fixture comprising: a female screw thread formed in a screw hole, and fitting and fixing the screwable metal screw; and attaching the metal lighting fixture reflector to the metal lighting fixture body. Production method.

請求項１に係る照明器具によれば、絶縁性塗装膜によって覆われている金属製照明器具反射板のアースを容易かつ確実に得ることができる照明器具を提供することができる。
請求項２に係る照明器具によれば、さらに金属製照明器具本体が絶縁性塗装膜によって覆われている場合も、同様に金属製照明器具反射板のアースを容易かつ確実に得ることができる照明器具を提供することができる。
請求項３に係る照明器具の製造方法によれば、絶縁性塗装膜によって覆われている金属製照明器具反射板のアースを容易かつ確実に得ることができる照明器具の製造方法を提供することができる。 According to the lighting fixture which concerns on Claim 1, the lighting fixture which can obtain the earth | ground of the metal lighting fixture reflecting plate covered with the insulating coating film easily and reliably can be provided.
According to the luminaire according to claim 2, even when the metal luminaire main body is covered with an insulating coating film, the illumination that can easily and reliably obtain the ground of the metal luminaire reflector is similarly provided. An instrument can be provided.
According to the manufacturing method of the lighting fixture which concerns on Claim 3, the manufacturing method of the lighting fixture which can obtain the earth | ground of the metal lighting fixture reflector covered with the insulating coating film easily and reliably is provided. it can.

（ａ）〜（ｃ）は本発明に係る金属製照明器具反射板へのネジ立て可能金属製ネジによる成形および破損の一例を示す断面図である。(A)-(c) is sectional drawing which shows an example of the shaping | molding by the metal screw which can be tapped to the metal lighting fixture reflector which concerns on this invention, and a failure | damage. （ａ）〜（ｃ）は本発明に係る金属製照明器具本体へのネジ立て可能金属製ネジによる成形および嵌め合わせ固定の一例を示す断面図である。(A)-(c) is sectional drawing which shows an example of the shaping | molding by the metal screw which can be tapped to the metal lighting fixture main body which concerns on this invention, and fitting fixation. 本発明に係る照明器具の一実施例を示す図である。It is a figure which shows one Example of the lighting fixture which concerns on this invention. （ａ）、（ｂ）はネジ立て可能金属製ネジのネジ下孔への嵌め合わせの例をそれぞれ示す断面図である。(A), (b) is sectional drawing which shows the example of the fitting to the screw lower hole of the metal screw which can be tapped, respectively.

以下、本発明に係る照明器具およびその製造方法の実施例を説明するが、その前にまず本発明に用いるネジ立て可能金属製ネジについて説明する。本発明に用いるネジ立て可能金属製ネジは、板金部品に形成された下孔端面に雌ネジ山を塑性加工しながらネジ自体にて雌ネジ山を成形することが可能な金属製ネジであり、いわゆるタップタイトやタッピンネジを含むものであるが、これに限定されない。   Hereinafter, examples of the lighting apparatus and the manufacturing method thereof according to the present invention will be described, but before that, the screwable metal screw used in the present invention will be described first. The screwable metal screw used in the present invention is a metal screw capable of forming the female thread with the screw itself while plastic working the female thread on the end surface of the lower hole formed in the sheet metal part, Although what is called a tap tight and a tapping screw are included, it is not limited to this.

図１〜４中に記載する参照符号は以下に説明する各実施例において共通符号とする。各図において、参照符号１０は絶縁性塗装膜（例えば樹脂塗装膜）によって覆われている金属製照明器具反射板、１１は金属製照明器具反射板のネジ下孔、１２は金属製照明器具反射板のネジ下孔端面、１３はネジ下孔端面１２に成形された雌ネジ山、１４はネジ下孔端面１２に成形された雌ネジ山が潰れた（破損した）貫通孔、１５は金属製照明器具反射板のネジ貫通孔近傍面、２０は絶縁性塗装膜によって覆われている金属製照明器具本体、２１は金属製照明器具本体のネジ下孔、２２は金属製照明器具本体のネジ下孔端面、２３は金属製照明器具本体の下孔端面に成形された雌ネジ山、３０はネジ立て可能金属製ネジ、３１はネジ立て可能金属製ネジの軸部の雄ネジ山、３２はネジ立て可能金属製ネジの頭部、４０は電源線接続器、４１は電源線接続器に接続された電源線、５０は蛍光ランプ、６０は天井ボードを示す。   The reference numerals described in FIGS. 1 to 4 are common numerals in each embodiment described below. In each figure, reference numeral 10 is a metal lighting fixture reflecting plate covered with an insulating coating film (for example, a resin coating film), 11 is a screw hole of the metal lighting fixture reflection plate, and 12 is a metal lighting fixture reflection. Threaded hole end surface of the plate, 13 is a female thread formed on the threaded hole end surface 12, 14 is a through hole in which the female thread formed on the threaded hole end surface 12 is crushed (damaged), and 15 is metal. The surface near the screw through hole of the lighting fixture reflector, 20 is a metal lighting fixture main body covered with an insulating coating film, 21 is a screw lower hole of the metal lighting fixture main body, and 22 is a screw lower of the metal lighting fixture main body. The hole end face, 23 is a female thread formed on the lower end face of the metal luminaire body, 30 is a metal screw that can be tapped, 31 is a male thread of the shaft portion of the metal screw that can be tapped, and 32 is a screw The head of a stand-up metal screw, 40 is a power line connector, 4 Power supply line connected to the power line connector is 50 fluorescent lamp, 60 denotes a ceiling board.

図１（ａ）〜（ｃ）は、本発明に係る金属製照明器具反射板へのネジ立て可能金属製ネジによる成形および破損の一例を示す断面図である。また、図２（ａ）〜（ｃ）は、本発明に係る金属製照明器具本体へのネジ立て可能金属製ネジによる成形および嵌め合わせ固定の一例を示す断面図である。各々絶縁性塗装膜によって覆われている例えば板厚０．８ｍｍの金属製照明器具反射板１０を金属製照明器具本体２０に装着する場合、金属製照明器具反射板にはネジ貫通下孔径を「ネジ立て可能金属製ネジ径ａ＞反射板のネジ貫通孔径ｂ＞ネジ立て可能金属製ネジが規定する下孔径ｃ」の関係で形成する。この場合、例えばネジ立て可能金属製ネジ径ａをΦ４．０ｍｍ、ネジ貫通孔径ｂをΦ３．８ｍｍ、ネジ立て可能金属製ネジの規定下孔径ｃをΦ３．６ｍｍとすることができる。   1 (a) to 1 (c) are cross-sectional views showing an example of molding and breakage with a threadable metal screw on a metal lighting fixture reflector according to the present invention. Moreover, Fig.2 (a)-(c) is sectional drawing which shows an example of shaping | molding by the metal screw which can be screwed to the metal lighting fixture main body which concerns on this invention, and fitting and fixing. When the metal lighting fixture reflector 10 having a thickness of, for example, 0.8 mm, which is covered with an insulating coating film, is mounted on the metal lighting fixture body 20, the diameter of the screw-through pilot hole is set on the metal lighting fixture reflector. It is formed by the relationship of the screw threadable metal screw diameter a> the reflection plate screw through hole diameter b> the lower hole diameter c defined by the threadable metal screw. In this case, for example, the screwable metal screw diameter a can be set to Φ4.0 mm, the screw through-hole diameter b can be set to Φ3.8 mm, and the specified lower hole diameter c of the screwable metal screw can be set to Φ3.6 mm.

次に、図１（ａ）〜（ｃ）を用いて、絶縁性塗装膜（例えば樹脂塗装膜）によって覆われている金属製照明器具反射板１０とネジ立て可能金属製ネジ３０の貫通過程について説明する。金属製照明器具反射板１０のネジ下孔１１へのネジ立て可能金属製ネジ３０の締め付け初期過程ではネジ下孔端面１２に雌ネジ山１３を塑性加工すると同時にネジ下孔端面１２の絶縁性塗装膜を剥離し金属製照明器具反射板１０の金属素地部とネジ立て可能金属製ネジの雄ネジ山３１とが接することで導通し、締め付け中期過程の規定トルク未満でネジ下孔端面１２の雌ネジ山１３が破損して貫通孔１４に変形しネジ立て可能金属製ネジ３０は空回り状態となる。この状態ではネジ締め力は不完全であるが金属製照明器具反射板１０とネジ立て可能金属製ネジ３０の導通状態は保持している。   Next, with reference to FIGS. 1A to 1C, a process of penetrating the metal lighting fixture reflector 10 covered with an insulating coating film (for example, a resin coating film) and the screw 30 that can be screwed up. explain. In the initial process of tightening the metal screw 30 to the screw hole 11 of the metal lighting fixture reflector 10, the female thread 13 is plastically processed on the screw hole end surface 12 and at the same time, the insulating coating of the screw hole end surface 12 is insulated. The film is peeled and the metal base portion of the metal lighting fixture reflector 10 is brought into contact with the male thread 31 of the screw that can be tapped. The female of the screw hole end face 12 is less than the specified torque in the middle stage of tightening. The screw thread 13 is damaged and deformed into the through hole 14, and the metal screw 30 that can be tapped is in an idle state. In this state, the screw tightening force is incomplete, but the conduction state of the metal lighting fixture reflector 10 and the screwable metal screw 30 is maintained.

次に、図２（ａ）〜（ｃ）を用いて、絶縁性塗装膜によって覆われている金属製照明器具本体２０とネジ立て可能金属製ネジ３０の螺合（嵌め合わせ固定）過程について説明する。金属製照明器具本体ネジ下孔２１へのネジ立て可能金属製ネジ３０を締め付け初期過程では、ネジ下孔端面２２に雌ネジ山２３を成形（塑性加工）すると同時にネジ下孔２１表面の絶縁性塗装膜を剥離する。これにより、雌ネジ山２３の金属素地部とネジ立て可能金属製ネジ３０の雄ネジ山３１とが接することで金属製照明器具本体２０とネジ立て可能金属製ネジ３０とが導通し、ネジ締め後期過程の規定トルクでネジ締めが完結する。   Next, with reference to FIGS. 2A to 2C, the process of screwing (fitting and fixing) the metal lighting fixture body 20 covered with the insulating coating film and the screwable metal screw 30 will be described. To do. In the initial stage of tightening the metal screw 30 that can be screwed into the metal lighting fixture body screw lower hole 21, the female screw thread 23 is formed (plastic processing) on the screw lower hole end face 22, and at the same time, the insulation of the surface of the screw lower hole 21 is achieved. Remove the paint film. As a result, the metal base portion of the female screw thread 23 and the male screw thread 31 of the screwable metal screw 30 are brought into contact with each other so that the metal lighting fixture body 20 and the screwable metal screw 30 are electrically connected to each other. Screw tightening is completed with the specified torque in the later stage.

以上より、各々絶縁性塗装膜によって覆われている金属製照明器具反射板１０と金属製照明器具本体２０はネジ立て可能金属製ネジ３０を介して導通し、金属製照明器具本体２０に具備された電源線接続器４０に接続された電源線４１により照明器具全体で対地アースを得ることが可能となる。   As described above, the metallic lighting fixture reflector 10 and the metallic lighting fixture main body 20 each covered with the insulating coating film are electrically connected via the screwable metal screws 30 and are provided in the metallic lighting fixture main body 20. It is possible to obtain ground to earth in the entire lighting fixture by the power line 41 connected to the power line connector 40.

図３は、本発明に係る照明器具およびその製造方法の一実施例を示す図である。本実施例は、図３に示すように、照明器具の天井取り付け状態の一例を示すものであるが、これに限定されない。本実施例では、金属製照明器具反射板１０と金属製照明器具本体２０とが一定距離を置いて接しない状態で照明器具が天井ボード６０に設置されている。金属製照明器具本体２０には、電源線接続器４０が設けられており、電源線接続器４０には電源線４１が接続されている。金属製照明器具反射板１０の内側には蛍光ランプ５０が備えられている。金属製照明器具反射板１０は、ネジ立て可能金属製ネジ３０を介して金属製照明器具本体２０に装着されている。このネジ立て可能金属製ネジ３０は、１箇所または複数箇所に設けることができる。   FIG. 3 is a diagram showing an embodiment of a lighting fixture and a manufacturing method thereof according to the present invention. Although a present Example shows an example of the ceiling mounting state of a lighting fixture as shown in FIG. 3, it is not limited to this. In this embodiment, the luminaire is installed on the ceiling board 60 in a state where the metal luminaire reflector 10 and the metal luminaire main body 20 are not in contact with each other at a certain distance. The metal lighting fixture body 20 is provided with a power line connector 40, and a power line 41 is connected to the power line connector 40. A fluorescent lamp 50 is provided inside the metallic lighting fixture reflector 10. The metal lighting fixture reflector 10 is attached to the metal lighting fixture body 20 via a screw 30 that can be tapped. This screwable metal screw 30 can be provided at one place or at a plurality of places.

すなわち、本照明器具は、絶縁性塗装膜によって覆われている金属製照明器具反射板１０と、金属製照明器具反射板１０が装着される金属製照明器具本体２０と、金属製照明器具反射板１０のネジ下孔１１において雌ネジ山を成形しおよび破損させて空回り状態とされ、かつ金属製照明器具本体２０のネジ下孔２１において雌ネジ山を成形して嵌め合わせ固定された、金属製照明器具反射板を前記金属製照明器具本体に装着するネジ立て可能金属製ネジ３０とを備えるものである。また、本照明器具の製造方法は、ネジ下孔１１を有する、絶縁性塗装膜によって覆われている金属製照明器具反射板１０と、ネジ下孔２１を有する、金属製照明器具反射板１０が装着される金属製照明器具本体２０と、ネジ下孔１１，２１を成形する雄ネジ山３１をもつ軸部とネジ下孔径よりも大きい頭部３２とを有するネジ立て可能金属製ネジ３０とを備え、ネジ立て可能金属製ネジ軸部の雄ネジ山３１により、ネジ下孔１１において雌ネジ山１３を成形しおよび破損させてネジ立て可能金属製ネジ３０を空回り状態とし、かつネジ下孔２１において雌ネジ山２３を成形してネジ立て可能金属製ネジ３０を嵌め合わせ固定して、金属製照明器具反射板１０を金属製照明器具本体２０に装着するものである。ここで、金属製照明器具本体２０は、絶縁性塗装膜によって覆われていてもよいし、覆われていなくてもよい。   That is, this lighting fixture includes a metallic lighting fixture reflector 10 covered with an insulating coating film, a metallic lighting fixture body 20 to which the metallic lighting fixture reflector 10 is mounted, and a metallic lighting fixture reflector. The female screw thread 11 is formed and broken in the ten screw holes 11 and is in a free-running state, and the female screw thread 21 is formed and fitted and fixed in the screw hole 21 of the metal luminaire body 20. And a metal screw 30 that can be tapped to attach the lighting fixture reflector to the metal lighting fixture body. Moreover, the manufacturing method of this luminaire includes a metal luminaire reflection plate 10 having a screw lower hole 11 and covered with an insulating coating film, and a metal luminaire reflection plate 10 having a screw lower hole 21. A metal luminaire main body 20 to be mounted, and a screwable metal screw 30 having a shaft portion having a male screw thread 31 for forming the screw lower holes 11 and 21 and a head portion 32 larger than the screw lower hole diameter. The threaded metal screw 30 is formed and damaged by the male thread 31 of the threadable metal screw shaft portion so that the threadable metal screw 30 is idle, and the threaded hole 21 In FIG. 5, the female screw thread 23 is formed, and a metal screw 30 that can be tapped is fitted and fixed, and the metal lighting fixture reflector 10 is attached to the metal lighting fixture body 20. Here, the metal lighting fixture body 20 may be covered with an insulating coating film or may not be covered.

図４（ａ）、（ｂ）は、ネジ立て可能金属製ネジのネジ下孔への嵌め合わせの例をそれぞれ示す断面図である。いま、図３および図４において、金属製照明器具反射板１０と金属製照明器具本体２０との間のネジ締め完結後の設定寸法ｄ、ネジ下孔１１のネジ山が破損した場合の実寸法ｅ、ネジ下孔１１のネジ山が破損しない場合の実寸法ｆとする。図４（ａ）に示すように、金属製照明器具反射板１０のネジ下孔１１が規定トルクでネジ山が破損せず雌ネジ山１３形態を保持した場合には、ネジ立て可能金属製ネジ３０のネジ締めが、ネジ下孔１１にて完結した設定寸法ｄ＜実寸法ｆとなり、設定寸法までのネジ締め付け力が得られない。これに対して、図４（ｂ）に示すように、規定トルク未満で雌ネジ山１３が破損して潰れ貫通孔１４に変形した場合には、貫通孔１４ではネジ立て可能金属製ネジ３０が空回りしネジ締めが完結せずにネジ頭部３２が照明器具反射板のネジ貫通孔近傍面１５に引っ掛かることで設定寸法ｄ＝実寸法ｅまでの締め付け力が得られる。なお、図３および図４において、設定寸法ｄと実寸法ｅはゼロより大きい値を与えているが、設定寸法ｄと実寸法ｅをゼロとし金属製照明器具反射板１０と金属製照明器具本体２０が接するようにしてもよい。   4 (a) and 4 (b) are cross-sectional views respectively showing examples of fitting the screwable metal screws into the screw holes. Now, in FIG. 3 and FIG. 4, the set dimension d after completion of the screw tightening between the metal lighting fixture reflector 10 and the metal lighting fixture body 20, and the actual dimension when the screw thread of the screw lower hole 11 is damaged. e, an actual dimension f when the screw thread of the screw hole 11 is not damaged. As shown in FIG. 4 (a), when the screw hole 11 of the metal lighting fixture reflector 10 is in a specified torque and the thread is not damaged and the form of the female thread 13 is maintained, the screw can be tapped. The screw tightening of 30 satisfies the set dimension d <actual dimension f completed in the screw lower hole 11, and the screw tightening force up to the set dimension cannot be obtained. On the other hand, as shown in FIG. 4B, when the female screw thread 13 is damaged and is crushed and deformed into a through hole 14 with less than a specified torque, the through hole 14 has a metal screw 30 that can be tapped. When the screw head 32 is caught by the surface 15 near the screw through hole of the luminaire reflection plate without completing the idle screw tightening, a tightening force up to the set dimension d = actual dimension e is obtained. 3 and 4, the set dimension d and the actual dimension e are larger than zero. However, the set dimension d and the actual dimension e are set to zero, and the metal lighting fixture reflector 10 and the metal lighting fixture main body are set. 20 may be in contact.

このように本発明では、金属製ネジとして汎用ネジであるタップタイトやタッピンネジ等のネジ立て可能金属製ネジを用いることができ、このネジ立て可能金属製ネジにより金属製照明器具反射板の貫通穴径を当該ネジで規定されている取り付け用下穴径より若干大きく雌ネジ山が破損する下穴径を形成する。これにより、ネジ立て可能金属製ネジは金属製照明器具反射板の貫通穴に雌ネジ山を成形（塑性加工）しながら塗装膜を剥離し、さらに金属製照明器具反射板の貫通孔を空回り状態とすることでネジ立て可能金属製ネジが金属製照明器具反射板の貫通孔端面と接した貫通状態で導通する。また、金属製照明器具本体のネジ下孔に雌ネジ山を成形することで金属製照明器具本体の雌ネジ山とネジ立て可能金属製ネジの雄ネジ山とが嵌め合わせ固定され金属製照明器具本体とネジ立て可能金属製ネジとが導通する。これにより、絶縁性塗装膜によって覆われている金属製照明器具反射板の金属製照明器具本体への装着および両者のアース取りを、特殊ネジや歯付座金等を使用することなく汎用ネジで可能とすることができる。   As described above, in the present invention, a metal screw such as a tap-tight or tapping screw that is a general-purpose screw can be used as a metal screw, and the through-hole of the metal lighting fixture reflector can be formed by the metal screw. The diameter of the pilot hole is slightly larger than the diameter of the mounting pilot hole defined by the screw, and the female screw thread is damaged. As a result, the metal screw that can be tapped is peeled off the coating film while forming a female thread in the through hole of the metal lighting fixture reflector (plastic processing), and the through hole of the metal lighting fixture reflector is idle. By doing so, the metal screw that can be tapped is conducted in a penetrating state in contact with the end face of the through hole of the metal lighting fixture reflector. In addition, by forming a female screw thread in the screw hole of the metal lighting fixture body, the female screw screw of the metal lighting fixture body and the male screw thread of the metal screw that can be tapped can be fitted and fixed. The main body is electrically connected to the metal screw that can be tapped. This makes it possible to attach the metal lighting fixture reflectors covered with an insulating coating film to the metal lighting fixture body and ground them with a general-purpose screw without using special screws or toothed washers. It can be.

１０ 絶縁性塗装膜を形成した金属製照明器具反射板
１１ 金属製照明器具反射板のネジ下孔
１２ 金属製照明器具反射板のネジ下孔端面
１３ ネジ下孔端面に成形された雌ネジ山
１４ ネジ下孔端面に成形された雌ネジ山が潰れた貫通孔
１５ 金属製照明器具反射板のネジ貫通孔近傍面
２０ 絶縁性塗装膜を形成した金属製照明器具本体
２１ 金属製照明器具本体のネジ下孔
２２ 金属製照明器具本体のネジ下孔端面
２３ 金属製照明器具本体の下孔端面に成形された雌ネジ山
３０ ネジ立て可能金属製ネジ
３１ ネジ立て可能金属製ネジの雄ネジ山
３２ ネジ立て可能金属製ネジの頭部
４０ 電源線接続器
４１ 電源線接続器に接続された電源線
５０ 蛍光ランプ
６０ 天井ボード DESCRIPTION OF SYMBOLS 10 Metal lighting fixture reflecting plate in which insulating coating film is formed 11 Screw lower hole 12 of metal lighting fixture reflecting plate Screw lower hole end surface 13 of metal lighting fixture reflecting plate Female screw thread 14 formed on screw lower hole end surface A through-hole 15 in which the female thread formed on the end surface of the screw hole is crushed 15 A surface of the metal lighting fixture reflector near the screw through-hole 20 A metallic lighting fixture body 21 having an insulating coating film A screw of the metallic lighting fixture body Lower hole 22 Screw lower hole end surface 23 of metal lighting fixture main body Female thread 30 formed on lower end surface of metal lighting fixture main body 30 Threadable metal screw 31 Threadable metal screw male screw thread 32 Screw Head of metal screw 40 that can be stood up 40 Power line connector 41 Power line 50 connected to power line connector Fluorescent lamp 60 Ceiling board

Claims (3)

絶縁性塗装膜によって覆われている金属製照明器具反射板と、
前記金属製照明器具反射板が装着される金属製照明器具本体と、
前記金属製照明器具反射板のネジ下孔において雌ネジ山を成形しおよび破損させて空回り状態とされ、かつ前記金属製照明器具本体のネジ下孔において雌ネジ山を成形して嵌め合わせ固定された、前記金属製照明器具反射板を前記金属製照明器具本体に装着するネジ立て可能金属製ネジと
を備えたことを特徴とする照明器具。 A metal lighting fixture reflector covered with an insulating coating film;
A metal lighting fixture body to which the metal lighting fixture reflector is mounted;
A female screw thread is formed and broken in the screw hole of the metal lighting fixture reflector, and the female screw thread is molded and fitted and fixed in the screw hole of the metal lamp body. A lighting fixture comprising: a metal screw that can be tapped to attach the metal lighting fixture reflector to the metal lighting fixture body. 前記金属製照明器具本体が、絶縁性塗装膜によって覆われていることを特徴とする請求項１記載の照明器具。   The lighting fixture according to claim 1, wherein the metal lighting fixture body is covered with an insulating coating film. 第１のネジ下孔を有する、絶縁性塗装膜によって覆われている金属製照明器具反射板と、
第２のネジ下孔を有する、前記金属製照明器具反射板が装着される金属製照明器具本体と、
前記第１および第２のネジ下孔を成形する雄ネジ山をもつ軸部と前記ネジ下孔径よりも大きい頭部とを有するネジ立て可能金属製ネジとを用意し、
前記ネジ立て可能金属製ネジ軸部の雄ネジ山により、前記第１のネジ下孔において雌ネジ山を成形しおよび破損させて前記ネジ立て可能金属製ネジを空回り状態とし、かつ前記第２のネジ下孔において雌ネジ山を成形して前記ネジ立て可能金属製ネジを嵌め合わせ固定して、前記金属製照明器具反射板を前記金属製照明器具本体に装着することを特徴とする照明器具の製造方法。 A metal luminaire reflector having a first screw hole and covered with an insulating coating film;
A metal luminaire body having a second screw hole, to which the metal luminaire reflector is mounted;
Preparing a threadable metal screw having a shaft portion having a male thread for forming the first and second screw holes and a head having a diameter larger than the screw hole diameter;
The male thread of the threadable metal screw shaft portion forms and breaks a female thread in the first screw pilot hole to make the threadable metal screw idle, and the second An illuminating fixture comprising: a female screw thread formed in a screw hole, and fitting and fixing the screwable metal screw; and attaching the metal lighting fixture reflector to the metal lighting fixture body. Production method.
JP2009177077A 2009-07-29 2009-07-29 Lighting apparatus and manufacturing method thereof Expired - Fee Related JP5276546B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6296889U (en) * 1985-12-06 1987-06-20
JPH0589921U (en) * 1992-05-19 1993-12-07 南条装備工業株式会社 Screw member for mounting interior parts
JP2008166183A (en) * 2006-12-28 2008-07-17 Toshiba Lighting & Technology Corp Luminaire

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6296889U (en) * 1985-12-06 1987-06-20
JPH0589921U (en) * 1992-05-19 1993-12-07 南条装備工業株式会社 Screw member for mounting interior parts
JP2008166183A (en) * 2006-12-28 2008-07-17 Toshiba Lighting & Technology Corp Luminaire

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