JP2012119071A - Tension-fixing structure of electric wire and lighting fixture - Google Patents

Tension-fixing structure of electric wire and lighting fixture Download PDF

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JP2012119071A
JP2012119071A JP2010264949A JP2010264949A JP2012119071A JP 2012119071 A JP2012119071 A JP 2012119071A JP 2010264949 A JP2010264949 A JP 2010264949A JP 2010264949 A JP2010264949 A JP 2010264949A JP 2012119071 A JP2012119071 A JP 2012119071A
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cover
electric wire
main body
wire
groove
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Noriaki Kinugasa
則明 衣笠
Hirotsugu Yamamoto
博嗣 山本
Hidemitsu Nagayasu
秀充 永安
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a tension-fixing structure of an electric wire capable of enhancing a tension-fixing effect and excellent in assemblability as well as a lighting fixture.SOLUTION: The structure is provided with a case 15 with a cover 14 attached to a case body 13, and a wire outlet part 12 fitted to the case 15 for tension-fixing the wire 10 drawn out toward outside 16. The wire outlet part 12, as an assembly of the case body 13 and the cover 14, is equipped with a body protruded piece 17 and a cover protruded piece 18 with their side faces 25 near each other in parallel and facing each other, and the body protruded piece 17 has a body U-shape groove formed with a cover 14 side open for inserting the wire 10, and the cover 14 has a cover U-shaped groove formed with a case body 13 side open overlapped with the body U-shape groove for inserting the wire 10. Widths of the body U-shape groove and the cover U-shape groove are smaller than a diameter of the wire 10, and an area of a wire insertion space part formed by the body U-shape groove and the cover U-shape groove superposed is made smaller than a cross-section area of the wire 10.

Description

本発明は、照明器具に用いられるケースに電線の張力止め効果を持たせる電線の張力止め構造および照明器具に関する。   The present invention relates to an electric wire tension retaining structure and an illumination fixture that provide an electric wire tension retaining effect to a case used in the lighting fixture.

照明器具は、内蔵された照明用電源ユニットからの電線を外部へ引き出すための電線引出部を備えている（特許文献１参照）。図７（Ａ）に示す電線引出部１００は、一対の離間するケース突起１０１を設けたケース本体１０２に電線１０３を配置する。ケース本体１０２に取り付けられるカバー１０４は、一対のケース突起１０１の間に進入するカバー突起１０５を備えている。この電線引出部１００では、カバー１０４をケース本体１０２に取り付けて互い違いに電線１０３をケース突起１０１とカバー突起１０５に押え付けることにより張力止めしている。また、図７（Ｂ）に示す電線引出部１０６は、ケース本体１０７に設けたケース突起１０８と、カバー１０９に設けたカバー突起１１０とによって略Ｓ状に曲がる電線導出路１１１を形成し、電線１０３を曲げながら嵌め込み、後にカバー１０９を取り付ける構成とすることで、電線１０３を屈曲させて張力止めしていた。   The lighting fixture includes a wire lead-out portion for drawing out a wire from a built-in lighting power supply unit to the outside (see Patent Document 1). In the wire lead-out portion 100 shown in FIG. 7A, the wire 103 is disposed on the case main body 102 provided with a pair of spaced case protrusions 101. The cover 104 attached to the case main body 102 includes a cover protrusion 105 that enters between the pair of case protrusions 101. In the wire lead-out portion 100, the cover 104 is attached to the case main body 102, and the wires 103 are alternately pressed against the case protrusion 101 and the cover protrusion 105 so as to stop the tension. In addition, the wire lead-out portion 106 shown in FIG. 7B forms a wire lead-out path 111 that bends in a substantially S shape by a case protrusion 108 provided on the case body 107 and a cover protrusion 110 provided on the cover 109. The wire 103 is bent and the tension is stopped by fitting the cover 103 while bending the cover 103 and attaching the cover 109 later.

特開平７−２１１１３０号公報（図２）Japanese Patent Laid-Open No. 7-211130 (FIG. 2)

しかしながら、従来の電線引出部１００、電線引出部１０６は、電線１０３を引っ張ると、電線１０３の外周に隙間があるために、斜め方向（図７の矢印方向）に力がかかり、ずれ易い問題がある。また、電線１０３が外れたり、電線１０３の被覆を圧縮することにより、電線被覆が横に広がり電線１０３への押圧力が減ることで張力止め効果が弱くなったりすることもあった。これに加え、手で電線１０３に曲げグセをつけたり引き回したりする必要があったため組み立てにくい欠点もあった。   However, the conventional wire lead-out portion 100 and the wire lead-out portion 106 have a problem that when the wire 103 is pulled, there is a gap in the outer periphery of the wire 103, so that a force is applied in an oblique direction (the arrow direction in FIG. is there. In addition, the wire 103 may come off, or by compressing the coating of the wire 103, the wire coating may spread sideways and the pressing force applied to the wire 103 may be reduced, which may weaken the tension stopping effect. In addition to this, there is a drawback that it is difficult to assemble because it is necessary to bend or wire the electric wire 103 by hand.

本発明は上記状況に鑑みてなされたもので、張力止め効果を大きくでき、かつ組立性に優れた電線の張力止め構造および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 situation, and it is an object of the present invention to provide a tension retaining structure for an electric wire and a lighting fixture that can increase the tension retaining effect and are excellent in assembling.

本発明の電線の張力止め構造は、ケース本体にカバーが取り付けられるケースと、前記ケースに設けられ外部に引き出される電線を張力止めする電線引出部と、を具備し、前記電線引出部は、前記ケース本体と前記カバーの組み立てで側面同士が平行に近接して対面する本体突片とカバー突片とを有し、前記本体突片にはカバー側が開口し電線を挿入する本体Ｕ溝が形成され、前記カバーにはケース本体側が開口し前記本体Ｕ溝と重なって前記電線を挿入するカバーＵ溝が形成され、前記本体Ｕ溝と前記カバーＵ溝の幅が前記電線の直径よりも小さく、かつ前記本体Ｕ溝と前記カバーＵ溝が重なって形成される電線挿通空間部の面積が、前記電線の断面積よりも小さいものである。   An electric wire tension stopper structure of the present invention includes a case in which a cover is attached to a case main body, and an electric wire lead-out portion that tensions an electric wire provided in the case and pulled out to the outside. The assembly of the case main body and the cover has a main body protruding piece and a cover protruding piece whose side faces are close to each other in parallel, and the main body protruding piece is formed with a main body U-groove that opens on the cover side and into which an electric wire is inserted. The cover is formed with a cover U groove that is open on the case body side and overlaps with the main body U groove to insert the electric wire, and the width of the main body U groove and the cover U groove is smaller than the diameter of the electric wire, and The area of the electric wire insertion space formed by overlapping the main body U groove and the cover U groove is smaller than the cross-sectional area of the electric wire.

また、本発明の電線の張力止め構造は、前記ケース本体に一枚の前記本体突片が突設され、前記カバーに前記本体突片を挟む一対の前記カバー突片が平行に突設されているものである。   Further, in the wire tension retaining structure of the present invention, the one main body projecting piece protrudes from the case main body, and the pair of cover projecting pieces sandwiching the main body projecting piece protrudes in parallel from the cover. It is what.

また、本発明の電線の張力止め構造は、前記カバー突片および前記本体突片が一枚以上設けられるものである。   Moreover, the tension stop structure for an electric wire according to the present invention is provided with one or more of the cover projecting piece and the main body projecting piece.

本発明の電線の張力止め構造を照明用電源ユニットに用いた照明器具は、前記ケース本体に照明用電源ユニットが取り付けられ、前記照明用電源ユニットから導出される電線が、前記電線引出部によって張力止めされているものである。   In the lighting fixture using the electric wire tension retaining structure of the present invention for an illumination power supply unit, the illumination power supply unit is attached to the case body, and the electric wire led out from the illumination power supply unit is tensioned by the electric wire drawing portion. It has been stopped.

本発明に係る電線の張力止め構造は、電線を、本体Ｕ溝とカバーＵ溝で形成した電線挿通空間部で電線の被覆を段差付けするように挟み込むことにより、ずれにくい大きな張力止め効果を得ることができる。また、電線を挟む部分を本体Ｕ溝とカバーＵ溝とすることでカバーとケース本体を押さえる際に自動的に電線を押さえ込むことができ、組み立てを容易にすることができる。   The tension retaining structure for an electric wire according to the present invention obtains a large tension retaining effect that is difficult to shift by sandwiching the electric wire so as to step the coating of the electric wire in the electric wire insertion space formed by the main body U groove and the cover U groove. be able to. Moreover, when the part which pinches | interposes an electric wire is made into the main body U groove | channel and the cover U groove | channel, an electric wire can be automatically pressed down when pressing a cover and a case main body, and an assembly can be made easy.

本発明に係る電線の張力止め構造を照明用電源ユニットに用いた照明器具は、照明用電源ユニットと電線との接続部に、高い電気的な接続信頼性を得ることができる。   The luminaire using the tension stop structure of the electric wire according to the present invention for the illumination power supply unit can obtain high electrical connection reliability at the connection portion between the illumination power supply unit and the electric wire.

本発明に係る照明器具における電線引出部の要部拡大断面図The principal part expanded sectional view of the electric wire extraction part in the lighting fixture which concerns on this invention ケース本体に設けられる本体突片の斜視図Perspective view of the main body protrusion provided on the case body カバーに設けられるカバー突片の斜視図The perspective view of the cover protrusion provided in the cover 本体突片とカバー突片が重ねられた電線引出部の斜視図Perspective view of the wire lead-out part with the main body protrusion and cover protrusion overlapped 電線引出部の正面図Front view of the wire outlet 他の実施形態に係る張力止め構造の電線引出部の要部拡大断面図The principal part expanded sectional view of the electric wire extraction part of the tension | tensile_strength structure which concerns on other embodiment. （Ａ）は一対のケース突起の間に進入するカバー突起を備えた従来の張力止め構造の断面図、（Ｂ）はケース突起とカバー突起によって略Ｓ状に曲がる電線導出路を形成した従来の張力止め構造の断面図(A) is sectional drawing of the conventional tension stop structure provided with the cover protrusion which approachs between a pair of case protrusion, (B) is the conventional electric wire lead-out path which formed the substantially S shape by the case protrusion and cover protrusion. Cross section of tension stopper

以下、本発明の実施形態を図面を参照して説明する。
図１は本発明に係る電線の張力止め構造を用いた照明器具における電線引出部の要部拡大断面図である。
本実施形態に係る電線１０の張力止め構造は、照明器具１１に設けられる電線引出部１２に好適に用いることができる。照明器具１１は、ケース本体１３にカバー１４が取り付けられてなるケース１５と、ケース１５に設けられ外部１６に引き出される電線１０を張力止めする電線引出部１２と、を具備する。ケース本体１３には図示しない照明用電源ユニットが取り付けられ、照明用電源ユニットから導出される電線１０が、電線引出部１２によって張力止めされる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is an enlarged cross-sectional view of a main part of a wire lead-out portion in a lighting fixture using the wire tension retaining structure according to the present invention.
The tension retaining structure for the electric wire 10 according to the present embodiment can be suitably used for the electric wire drawing portion 12 provided in the lighting fixture 11. The luminaire 11 includes a case 15 in which a cover 14 is attached to the case main body 13, and a wire lead-out portion 12 that is provided in the case 15 and that tensions the electric wire 10 drawn out to the outside 16. An illumination power supply unit (not shown) is attached to the case main body 13, and the electric wire 10 led out from the illumination power supply unit is tensioned by the wire lead-out portion 12.

図２はケース本体１３に設けられる本体突片１７の斜視図、図３はカバー１４に設けられるカバー突片１８の斜視図である。
電線引出部１２は、ケース本体１３とカバー１４を組み立てた状態で、側面同士が平行に近接して対面する本体突片１７とカバー突片１８とを有している。本体突片１７にはカバー１４側が開口し電線１０を挿入する本体Ｕ溝１９が形成される。カバー１４にはケース本体１３側が開口し本体Ｕ溝１９と重なって電線１０を挿入するカバーＵ溝２０が形成される。本体Ｕ溝１９とカバーＵ溝２０の幅は、電線１０の直径よりも若干小さく形成されている。 FIG. 2 is a perspective view of the main body protrusion 17 provided on the case main body 13, and FIG. 3 is a perspective view of the cover protrusion 18 provided on the cover 14.
The wire lead-out portion 12 includes a main body projecting piece 17 and a cover projecting piece 18 whose side surfaces are close to each other and face each other in a state where the case main body 13 and the cover 14 are assembled. The main body protruding piece 17 is formed with a main body U groove 19 into which the cover 14 is opened and into which the electric wire 10 is inserted. The cover 14 is formed with a cover U groove 20 that opens on the case main body 13 side and overlaps with the main body U groove 19 to insert the electric wire 10. The width of the main body U groove 19 and the cover U groove 20 is slightly smaller than the diameter of the electric wire 10.

電線１０は、導体の外周に難燃性樹脂、軟質ポリ塩化ビニル樹脂等からなる被覆を成形している。本実施形態に用いられる電線１０は、断面形状が円形状の絶縁被覆電線となっている。被覆は所定の厚みを有して導体に被覆され、絶縁性の確保は元より、擦れや傷つき等の外的な要因に対して所定の強度を有して導体を保護している。   In the electric wire 10, a coating made of a flame-retardant resin, a soft polyvinyl chloride resin, or the like is formed on the outer periphery of the conductor. The electric wire 10 used in this embodiment is an insulation-coated electric wire having a circular cross section. The coating has a predetermined thickness and is coated on the conductor, and the conductor is protected with a predetermined strength against external factors such as rubbing and scratching as well as ensuring insulation.

図４は本体突片１７とカバー突片１８が重ねられた電線引出部１２の斜視図、図５は電線引出部１２の正面図である。
ケース本体１３とカバー１４を組み立てた状態で、図４に示すように、本体Ｕ溝１９とカバーＵ溝２０が重なると、双方のＵ字形状が逆向きとなって重なることによって図５に示す電線挿通空間部２１が形成される。電線挿通空間部２１は、本体Ｕ溝１９とカバーＵ溝２０の溝底同士によって包囲されて形成され、電線１０の挿通方向から見た正面視では、真円をやや潰した形状となる。この電線挿通空間部２１は、面積が、電線１０の断面積よりも小さくなるように形成される。 4 is a perspective view of the wire lead-out portion 12 in which the main body protrusion piece 17 and the cover protrusion piece 18 are overlapped, and FIG. 5 is a front view of the wire lead-out portion 12.
When the main body U groove 19 and the cover U groove 20 overlap as shown in FIG. 4 with the case main body 13 and the cover 14 assembled, the two U shapes overlap in opposite directions, as shown in FIG. An electric wire insertion space 21 is formed. The electric wire insertion space portion 21 is formed to be surrounded by the groove bottoms of the main body U groove 19 and the cover U groove 20, and has a shape in which a perfect circle is slightly crushed when viewed from the insertion direction of the electric wire 10. The electric wire insertion space 21 is formed so that the area is smaller than the cross-sectional area of the electric wire 10.

上記のように、本体Ｕ溝１９とカバーＵ溝２０の幅は、電線１０の直径よりも若干小さく形成されているので、電線挿通空間部２１が形成された状態では、電線１０の被覆が双方の溝底２２から挟まれて、被覆が剪断方向に変形する。この変形に要する力は、ケース本体１３とカバー１４の組付け力によって得られる。ケース本体１３とカバー１４が図示しない係止手段によって係止されることで、電線１０は変形の生じたままの状態で保持される。この剪断方向の変形により、電線１０の被覆には図１に示す段差部２３が形成される。   As described above, the widths of the main body U groove 19 and the cover U groove 20 are formed slightly smaller than the diameter of the electric wire 10, so that in the state where the electric wire insertion space portion 21 is formed, the covering of the electric wire 10 is both The cover is deformed in the shearing direction by being sandwiched from the groove bottom 22. The force required for this deformation is obtained by the assembling force of the case main body 13 and the cover 14. Since the case main body 13 and the cover 14 are locked by locking means (not shown), the electric wire 10 is held in a state where deformation has occurred. Due to the deformation in the shear direction, a step portion 23 shown in FIG.

段差部２３は、図１に示すように、本体Ｕ溝１９の溝底２２が被覆に食い込むことによって形成される凹状段差部２４と、カバーＵ溝２０からはみ出してカバー突片１８の側面２５に沿って膨出する凸状段差部２６との二種類が形成される。段差部２３は被覆のみの変形によって形成され、導体には所定以上の力が作用しないように形状の設定がなされている。この段差部２３と、本体突片１７およびカバー突片１８の側面２５とが当たることで、電線１０を引っ張った時の大きな張力止め効果が発生する。   As shown in FIG. 1, the stepped portion 23 includes a concave stepped portion 24 formed by the groove bottom 22 of the main body U groove 19 biting into the coating, and a side surface 25 of the cover protruding piece 18 protruding from the cover U groove 20. Two types are formed: a convex stepped portion 26 that bulges along. The step portion 23 is formed by deformation of only the covering, and the shape is set so that a predetermined force or more does not act on the conductor. When this step part 23 and the side surface 25 of the main body protrusion piece 17 and the cover protrusion piece 18 abut, a large tension stopping effect when the electric wire 10 is pulled is generated.

より具体的には、電線１０が外部１６から図１の左方に引っ張られると、凸状段差部２６の左方がカバー突片１８の側面２５に当たるとともに、凹状段差部２４の右方が本体突片１７の側面２５に当たり、二箇所で張力止め効果が発生することになる。   More specifically, when the electric wire 10 is pulled to the left in FIG. 1 from the outside 16, the left side of the convex stepped portion 26 hits the side surface 25 of the cover protruding piece 18, and the right side of the concave stepped portion 24 is the main body. When it hits the side surface 25 of the projecting piece 17, a tension stopping effect is generated at two locations.

本実施形態では、ケース本体１３に一枚の本体突片１７が突設され、カバー１４に本体突片１７を挟む一対のカバー突片１８が平行に突設されている。これにより、上記した二箇所で張力止め効果を発生させている。これに加え、カバー１４に一対のカバー突片１８が設けられることで、電線１０をカバー突片１８に保持し、カバー１４とケース１５を組み付ける際に、電線１０を、傾きや外れの生じないようにして挟み込むことができ、手で電線１０の曲げ癖を付けたり、引き回したりする必要がなく簡単な組み立てが可能となる。
なお、張力止め効果、組立作業性が若干低下しても構わなければ、図１に示す右方のカバー突片１８を省略する構成としてもよい。低下の理由は、右方のカバー突片１８が省略されると凹状段差部２４の形成量が少なくなるからである。 In the present embodiment, one main body projecting piece 17 projects from the case body 13, and a pair of cover projecting pieces 18 sandwiching the main body projecting piece 17 project from the cover 14 in parallel. Thereby, the tension stop effect is generated at the two locations described above. In addition, since the cover 14 is provided with a pair of cover projecting pieces 18, when the electric wire 10 is held on the cover projecting piece 18 and the cover 14 and the case 15 are assembled, the electric wire 10 does not tilt or come off. In this way, it is not necessary to bend or wire the electric wire 10 by hand, and simple assembly is possible.
Note that the right cover protrusion 18 shown in FIG. 1 may be omitted if the tension retaining effect and assembly workability may be slightly reduced. The reason for the decrease is that when the right cover protrusion 18 is omitted, the amount of formation of the concave step portion 24 is reduced.

本実施形態では、ケース本体１３に一枚の本体突片１７が突設され、カバー１４に本体突片１７を挟む一対のカバー突片１８が突設される構成例を示したが、本発明に係る電線１０の張力止め構造は、これとは逆に、カバー１４に一枚のカバー突片１８が突設され、ケース本体１３にカバー突片１８を挟む一対の本体突片１７が突設されても勿論よい。   In the present embodiment, a configuration example is shown in which one main body projecting piece 17 projects from the case body 13 and a pair of cover projecting pieces 18 sandwiching the main body projecting piece 17 project from the cover 14. Contrary to this, the tension retaining structure for the electric wire 10 according to the present invention has one cover protrusion 18 protruding from the cover 14 and a pair of body protrusions 17 sandwiching the cover protrusion 18 from the case body 13. Of course it may be.

また、本体突片１７とカバー突片１８には、厚み方向の中央において、本体Ｕ溝１９とカバーＵ溝２０の内壁面に沿う図２に示す保持リブ２７を突設してもよい。保持リブ２７を設けることにより、本体Ｕ溝１９とカバーＵ溝２０に挿入された電線１０の被覆に局所的に保持リブ２７を食い込ませ、電線１０の保持性をさらに高めて作業性をより良好にすることができる。   Further, the main body protruding piece 17 and the cover protruding piece 18 may be provided with a holding rib 27 shown in FIG. 2 along the inner wall surfaces of the main body U groove 19 and the cover U groove 20 at the center in the thickness direction. By providing the holding ribs 27, the holding ribs 27 are locally cut into the covering of the electric wires 10 inserted into the main body U-groove 19 and the cover U-groove 20, thereby further improving the holding ability of the electric wires 10 and improving the workability. Can be.

次に、上記電線１０の張力止め構造の作用を説明する。
ケース本体１３にカバー１４が取り付けられ、ケース１５が組み立てられると、本体突片１７とカバー突片１８は、側面同士が平行に近接して対面する。本体突片１７とカバー突片１８は、近接して対面することで、本体Ｕ溝１９とカバーＵ溝２０が重なる。この際、カバー１４とケース本体１３を押さえると、自動的に電線１０が押さえ込まれて、組み立てが容易となる。 Next, the effect | action of the tension stop structure of the said electric wire 10 is demonstrated.
When the cover 14 is attached to the case main body 13 and the case 15 is assembled, the main body projecting piece 17 and the cover projecting piece 18 face each other with their side surfaces close to each other in parallel. The main body protruding piece 17 and the cover protruding piece 18 face each other close to each other, so that the main body U groove 19 and the cover U groove 20 overlap. At this time, if the cover 14 and the case main body 13 are pressed, the electric wire 10 is automatically pressed and assembly becomes easy.

本体Ｕ溝１９とカバーＵ溝２０が重なると、双方の溝底２２が電線１０の被覆を変形させながら、電線挿通空間部２１が形成される。本体Ｕ溝１９とカバーＵ溝２０の幅は、電線１０の直径よりも少し小さめにしているので、本体Ｕ溝１９とカバーＵ溝２０で挟み込んだ際に、電線１０の圧縮による広がりを押さえ、小さな押圧力で被覆に対する食い込みが確実に形成される。被覆が剪断方向に変形することにより、電線１０に形成された段差部２３と、本体突片１７およびカバー突片１８の側面２５とが上記したように当たり、電線１０を引っ張った時の大きな張力止め効果が発生することになる。   When the main body U-groove 19 and the cover U-groove 20 overlap each other, the wire insertion space 21 is formed while both the groove bottoms 22 deform the covering of the electric wire 10. Since the width of the main body U groove 19 and the cover U groove 20 is slightly smaller than the diameter of the electric wire 10, when the main body U groove 19 and the cover U groove 20 are sandwiched, the expansion due to the compression of the electric wire 10 is suppressed. Biting into the coating is reliably formed with a small pressing force. When the coating is deformed in the shearing direction, the stepped portion 23 formed on the electric wire 10 and the side surface 25 of the main body protruding piece 17 and the cover protruding piece 18 hit as described above, and a large tension stopper when the electric wire 10 is pulled. An effect will occur.

そして、この電線１０の張力止め構造を用いた照明器具１１では、照明用電源ユニットから導出された電線１０が電線引出部１２で支持されて外部１６へ引き出されることで、外部１６で電線１０が引っ張られたときの張力が電線引出部１２で確実に受け止められる。これにより、照明用電源ユニットと電線１０との接続部に外力の作用することが防止され、電気的な接続信頼性が高められる。   And in the lighting fixture 11 using the tension | tensile_strength structure of this electric wire 10, the electric wire 10 led out from the power supply unit for illumination is supported by the electric wire extraction part 12, and is drawn out to the exterior 16, The electric wire 10 is the external 16 at the exterior. The tension when pulled is reliably received by the wire lead-out portion 12. Thereby, it is prevented that external force acts on the connection part of the illumination power supply unit and the electric wire 10, and electrical connection reliability is improved.

次に、本発明に係る電線１０の張力止め構造の他の実施形態を説明する。
図６は他の実施形態に係る張力止め構造の電線引出部２８の要部拡大断面図である。なお、図１〜図５に示した部材と同一の部材には同一の符号を付し重複する説明は省略するものとする。
上記の実施形態では、ケース本体１３に一枚の本体突片１７が突設され、カバー１４に本体突片１７を挟む一対のカバー突片１８が突設される構成例を示したが、本発明に係る電線１０の張力止め構造は、カバー突片１８および本体突片１７が一枚以上設けられている。具体的には、図６に示すように、ケース本体２９に二枚の本体突片１７が突設され、カバー３０に本体突片１７を挟む三枚のカバー突片１８が突設されている。 Next, another embodiment of the tension retaining structure for the electric wire 10 according to the present invention will be described.
FIG. 6 is an enlarged cross-sectional view of a main part of the wire lead-out portion 28 of the tension stop structure according to another embodiment. In addition, the same code | symbol is attached | subjected to the member same as the member shown in FIGS. 1-5, and the overlapping description shall be abbreviate | omitted.
In the above-described embodiment, a configuration example in which one main body protruding piece 17 protrudes from the case main body 13 and a pair of cover protruding pieces 18 sandwiching the main body protruding piece 17 from the cover 14 is shown. In the tension stop structure for the electric wire 10 according to the invention, one or more cover projecting pieces 18 and main body projecting pieces 17 are provided. Specifically, as shown in FIG. 6, two main body projecting pieces 17 project from the case main body 29, and three cover projecting pieces 18 sandwiching the main body projecting piece 17 project from the cover 30. .

このように、カバー突片１８および本体突片１７が一枚以上の多数となることで、電線１０を挟んでできる段差部２３の数が増え、より大きな張力止め効果が得られる。   As described above, since the cover projecting piece 18 and the main body projecting piece 17 are one or more in number, the number of the step portions 23 that can be sandwiched between the electric wires 10 is increased, and a greater tension stopping effect can be obtained.

従って、本実施形態に係る電線１０の張力止め構造は、電線１０を、本体Ｕ溝１９とカバーＵ溝２０で形成した電線挿通空間部２１で電線１０の被覆を段差付けするように挟み込むので、ずれにくい大きな張力止め効果を得ることができる。また、電線１０を挟む部分を本体Ｕ溝１９とカバーＵ溝２０とすることでカバー１４とケース本体１３を押さえる際に自動的に電線１０を押さえ込むことができ、組み立てを容易にすることができる。   Therefore, the tension stop structure of the electric wire 10 according to the present embodiment sandwiches the electric wire 10 so as to step the covering of the electric wire 10 at the electric wire insertion space portion 21 formed by the main body U groove 19 and the cover U groove 20. A large tension stopping effect that is difficult to shift can be obtained. Moreover, when the part which pinches | interposes the electric wire 10 is made into the main body U groove 19 and the cover U groove 20, when pressing the cover 14 and the case main body 13, the electric wire 10 can be automatically pressed down and an assembly can be made easy. .

そして、この電線１０の張力止め構造を照明用電源ユニットに用いた照明器具１１は、照明用電源ユニットと電線１０との接続部に、高い電気的な接続信頼性を得ることができる。   And the lighting fixture 11 which used the tension stop structure of this electric wire 10 for the power supply unit for illumination can obtain high electrical connection reliability in the connection part of the power supply unit for illumination and the electric wire 10. FIG.

１０ 電線
１１ 照明器具
１２，２８ 電線引出部
１３，２９ ケース本体
１４，３０ カバー
１５ ケース
１６ 外部
１７ 本体突片
１８ カバー突片
１９ 本体Ｕ溝
２０ カバーＵ溝
２１ 電線挿通空間部 DESCRIPTION OF SYMBOLS 10 Electric wire 11 Lighting fixture 12, 28 Electric wire extraction part 13, 29 Case main body 14, 30 Cover 15 Case 16 External 17 Main body protrusion 18 Cover protrusion 19 Main body U groove 20 Cover U groove 21 Electric wire insertion space part

Claims (4)

ケース本体にカバーが取り付けられるケースと、
前記ケースに設けられ外部に引き出される電線を張力止めする電線引出部と、を具備し、
前記電線引出部は、前記ケース本体と前記カバーの組立で側面同士が平行に近接して対面する本体突片とカバー突片とを有し、前記本体突片にはカバー側が開口し電線を挿入する本体Ｕ溝が形成され、前記カバーにはケース本体側が開口し前記本体Ｕ溝と重なって前記電線を挿入するカバーＵ溝が形成され、
前記本体Ｕ溝と前記カバーＵ溝の幅が前記電線の直径よりも小さく、かつ前記本体Ｕ溝と前記カバーＵ溝が重なって形成される電線挿通空間部の面積が、前記電線の断面積よりも小さい電線の張力止め構造。 A case with a cover attached to the case body,
A wire lead-out portion that tensions the wire that is provided in the case and is pulled out to the outside;
The wire lead-out portion has a main body projecting piece and a cover projecting piece facing side-by-side in parallel when the case main body and the cover are assembled. The main body projecting piece opens on the cover side and inserts an electric wire. A body U-groove is formed, and the cover is formed with a cover U-groove that opens on the case body side and overlaps the body U-groove to insert the electric wire,
The width of the main body U groove and the cover U groove is smaller than the diameter of the electric wire, and the area of the electric wire insertion space formed by overlapping the main body U groove and the cover U groove is larger than the cross-sectional area of the electric wire. Even a small wire tension stop structure. 請求項１に記載の電線の張力止め構造であって、
前記ケース本体に一枚の前記本体突片が突設され、
前記カバーに前記本体突片を挟む一対の前記カバー突片が平行に突設されている電線の張力止め構造。 It is the tension stop structure of the electric wire according to claim 1,
One piece of the main body protrusion projects from the case main body,
An electric wire tension stop structure in which a pair of the cover projecting pieces sandwiching the main body projecting piece from the cover are projected in parallel. 請求項１に記載の電線の張力止め構造であって、
前記カバー突片および前記本体突片が一枚以上設けられる電線の張力止め構造。 It is the tension stop structure of the electric wire according to claim 1,
An electric wire tension retaining structure in which one or more of the cover projecting piece and the main body projecting piece are provided. 請求項１ないし請求項３のうちのいずれか１項に記載の電線の張力止め構造を用いた照明器具であって、
前記ケース本体に照明用電源ユニットが取り付けられ、
前記照明用電源ユニットから導出される電線が、前記電線引出部によって張力止めされている照明器具。 It is a lighting fixture using the tension stop structure of the electric wire according to any one of claims 1 to 3,
A lighting power supply unit is attached to the case body,
The lighting fixture by which the electric wire led out from the said power supply unit for illumination is tension-stopped by the said electric wire extraction part.
JP2010264949A 2010-11-29 2010-11-29 Tension-fixing structure of electric wire and lighting fixture Pending JP2012119071A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017016802A (en) * 2015-06-29 2017-01-19 パナソニックＩｐマネジメント株式会社 Lighting device
JP2020068156A (en) * 2018-10-26 2020-04-30 シーシーエス株式会社 Oled illumination device

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JPS58147106U (en) * 1982-03-29 1983-10-03 市光工業株式会社 Vehicle lights
US4821161A (en) * 1987-12-17 1989-04-11 Design Products, Co., Inc. Light fixture
JPH07296627A (en) * 1994-04-25 1995-11-10 Matsushita Electric Works Ltd Electrical appliance
JP2006032023A (en) * 2004-07-13 2006-02-02 Toshiba Lighting & Technology Corp Light emitting device and lighting device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58147106U (en) * 1982-03-29 1983-10-03 市光工業株式会社 Vehicle lights
US4821161A (en) * 1987-12-17 1989-04-11 Design Products, Co., Inc. Light fixture
JPH07296627A (en) * 1994-04-25 1995-11-10 Matsushita Electric Works Ltd Electrical appliance
JP2006032023A (en) * 2004-07-13 2006-02-02 Toshiba Lighting & Technology Corp Light emitting device and lighting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017016802A (en) * 2015-06-29 2017-01-19 パナソニックＩｐマネジメント株式会社 Lighting device
JP2020068156A (en) * 2018-10-26 2020-04-30 シーシーエス株式会社 Oled illumination device

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