JP3639232B2

JP3639232B2 - Light bulb socket and lighting device incorporating the socket

Info

Publication number: JP3639232B2
Application number: JP2001251797A
Authority: JP
Inventors: 久志浅川; 勝美宮地; 昌敏本山; 孝鈴木
Original assignee: 丸茂電機株式会社; 株式会社セライズ
Priority date: 2001-08-22
Filing date: 2001-08-22
Publication date: 2005-04-20
Anticipated expiration: 2021-08-22
Also published as: JP2003059600A

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば劇場の舞台やテレビスタジオ等で使用されるスポットライト等の照明装置用の電球ソケットと、この電球ソケットを内蔵した照明装置に関し、詳しくは、前記照明装置の灯体内のソケットに交換可能に装着される電球の脱着構造の改良に関する。
【０００２】
【従来の技術】
近年、照明装置の電球としてバイポスト型（２極突出型）のハロゲン電球が多用されている。また、この種ハロゲン電球を灯体内に交換可能に装着するための電球用ソケットとして、ソケットケース内に前後２つのピン受けホルダーを摺動自在に保持すると共に、これらピン受けホルダーの相対向した内側に相対して配設された一対のピン受け金具と、該ピン受け金具を離反方向に弾発付勢するスプリングと、前記ピン受けホルダーを挟持方向に押圧する押えバネと、該押えバネを起動により押圧し、伏動により開放するように配設した作動レバーを有し、作動レバーを倒した状態では両ピン受けホルダーが離反して電球の抜き差しを自在とし、作動レバーを起こした状態では両ピン受けホルダーが押えバネにより挟持方向へ押圧されて電球の口金ピンが一対のピン金具に挟持されるよう構成したものが知られている（例えば実開昭５９−２８８号公報等参照）。
【０００３】
【発明が解決しようとする課題】
上記従来の電球用ソケットによれば、電源ケーブルを抜き忘れる等によりソケットに通電している状態で電球の交換を行った場合、電球が高熱になることによる火傷や、ピン受け金具に作業者の指が触れることによる感電等が生じる虞れがある。
本発明はこのような従来事情に鑑みて成されたもので、その目的とする処は、万一、電源を抜き忘れる等によりソケットに通電している状態のままで電球の交換を行ったとしても、火傷や感電等が生じることのない安全性の高い電球用ソケットを提供することにある。
【０００４】
【課題を解決するための手段】
以上の目的を達成する為に、本発明の電球用ソケットは、請求項１では、ソケットケース（１２）内に前後２つのピン受けホルダー（１３ａ，１３ｂ）を摺動自在に保持すると共に、これらピン受けホルダーの相対向した内側に相対して配設された一対のピン受け金具（１５ａ，１５ｂ）と、該両ピン受け金具を離反方向に弾発付勢するスプリング（１６）と、前記ピン受けホルダーを挟持方向に押圧する押えバネ（１７）と、該押えバネを起動により押圧し伏動により開放するように配設した作動レバー（１８）と、給電コードが接続される電極部（２１ａ，２１ｂ）を有し、
作動レバー（１８）を倒した状態では、両ピン受けホルダー（１３ａ，１３ｂ）が離反して電球（１）の抜き差しを自在とすると共に、上記電極部（２１ａ，２１ｂ）とピン受け金具（１５ａ，１５ｂ）が電気的に離反してピン受け金具への通電がなされない状態となり、
且つ、作動レバー（１８）を起こした状態では、両ピン受けホルダー（１３ａ，１３ｂ）が押えバネ（１７）により挟持方向へ押圧されて電球の口金ピン（１１ａ，１１ｂ）が一対のピン受け金具（１５ａ，１５ｂ）に挟持されると共に、電極部（２１ａ，２１ｂ）とピン受け金具（１５ａ，１５ｂ）が電気的に接続されてピン受け金具に通電がなされるよう形成したことを特徴とする。
請求項２では、ソケットケース（１２）内に前後２つのピン受けホルダー（１３ａ，１３ｂ）を摺動自在に保持すると共に、これらピン受けホルダーの相対向した内側に相対して配設された一対のピン受け金具（１５ａ，１５ｂ）と、該両ピン受け金具を離反方向に弾発付勢するスプリングと、前記ピン受けホルダーを挟持方向に押圧する押えバネ（１７）と、該押えバネを起動により押圧し伏動により開放するように配設した作動レバー（１８）と、給電コードが接続されると共に前記一対のピン受け金具の何れか一方（１５ｂ）と一体に形成された電極部（２１ａ，２１ｂ）を有し、前記口金ピン（１１ａ，１１ｂ）が電極部を備えない他方のピン受け金具（１５ａ）に差し込まれると共に、
作動レバー（１８）を倒した状態では、両ピン受けホルダー（１３ａ，１３ｂ）が離反して電球（１）の抜き差しを自在とすると共に、上記電極部を備えたピン受け金具（１５ｂ）と、口金ピンが差し込まれたピン受け金具（１５ａ）が離反して口金ピン（１１ａ，１１ｂ）への通電がなされない状態となり、
且つ、作動レバー（１８）を起こした状態では、両ピン受けホルダー（１３ａ，１３ｂ）が押えバネ（１７）により挟持方向へ押圧されて口金ピン（１１ａ，１１ｂ）が一対のピン受け金具（１５ａ，１５ｂ）に挟持されると共に、電極部を備えたピン受け金具（１５ｂ）と口金ピンが差し込まれたピン受け金具（１５ａ）が接触して口金ピン（１１ａ，１１ｂ）に通電がなされるよう形成したことを特徴とする。
【０００５】
このような構成によれば、作動レバーを倒した状態においてはソケットに対する電球の着脱が自在であると共に、ソケットは非通電状態にある。一方、作動レバーを起こした時は電球がソケットに保持されると共に、この状態においてはじめてソケットが通電状態になる。よって、電球の着脱に際し火傷や感電の心配がない。
【０００６】
本発明において、電極部は、ピン受け金具と別体に形成する態様（請求項１）と、一対のピン受け金具の何れか一方と一体的に形成する態様（請求項２）の何れも選択することができる。
【０００７】
また本発明の請求項１又は２において、電球は特に限定されるものではないが、今日、スポットライト等の照明装置においてはバイポスト型の電球が多用されており、バイポスト型電球を使用する場合はこれに対応して、ソケットにおける一対のピン受け金具を左右二箇所に配する（請求項３）。
【０００８】
【発明の実施の形態】
以下、図面を参照して本発明に関し説明する。
図１は本発明に係る電球用ソケットとこれを内蔵した照明装置の実施形態の一例を簡略して示す断面図で、照明装置Ａは、電球１が装着されるソケット２、反射鏡３、レンズ４、これら部品を収納保持し不要光を遮光する灯体５等から構成されている。
【０００９】
電球１は照明装置で多用されるバイポスト型のハロゲン電球で、図４等に示すように、磁器等の絶縁材からなる口金１０の下面側に突出する２極の口金ピン１１a，１１ｂを有している。
【００１０】
ソケット２は上記電球１用のもので、図２〜５に示すように、ソケットケース１２内に、磁器等の絶縁材からなる前後２つのピン受けホルダー１３ａ，１３ｂを摺動自在に保持し、これらホルダー１３ａ，１３ｂはソケットケース１２の中央部に掛け渡した軸１４に遊嵌して、その軸１４に沿ってスライド可能に保持されている。
【００１１】
１５ａ，１５ｂは、夫々ピン受けホルダー１３ａ，１３ｂの相対向した内側に相対して配設された一対のピン受け金具で、本例ではバイポスト型ハロゲン電球１に対応するべく、一対のピン受け金具１５ａ，１５ｂが左右二箇所に配設されている。
【００１２】
ピン受け金具１５ａ，１５ｂは上記口金ピン１１ａ，１１ｂが摺接可能な半円状の内面を有するもので、それらの外面には不図示の突部が形成され、その突部を、ピン受けホルダー１３ａ，１３ｂに形成した不図示の窪み部に遊嵌して前後のピン受けホルダー１３ａ，１３ｂ間において摺動自在に保持されている。また一対のピン受け金具１５ａ，１５ｂはＵ字形に湾曲形成されたピン受けスプリング１６で連結されて両ピン受け金具１５ａ，１５ｂが離間する外側方向へ付勢されている。
【００１３】
１７は波形に湾曲形成された押えバネで、その押えバネ１７は軸１４の開放端側に軸支された連結ピン１８ａで回動自在に軸支された作動レバー１８の前部に配設したカラー１９とピン受けホルダー１３ｂの間に介在され、ピン受けホルダー１３ｂをピン受けホルダー１３ａに対し閉動する方向に付勢している。
【００１４】
軸１４の開放端側に作動レバー１８が連結ピン１８ａで枢着される位置は、作動レバー１８を軸１４に対し直角上向きとした時にカラー１９を介して押えバネ１７をピン受けホルダー１３ｂ方向へ押圧する一方、作動レバー１８を軸１４の軸線上に水平に倒した時に前記押圧を解除するよう形成する。これにより、作動レバー１８を起こした状態では押えバネ１７の押圧力により前後のピン受けホルダー１３ａ，１３ｂが閉動して、一対のピン受け金具１５ａ，１５ｂ間に差し込まれた口金ピン１１ａ，１１ｂが挟持される一方、作動レバー１８を倒した状態では押えバネ１７の押圧が解除され、ピン受けスプリング１６の弾発力で一対のピン受けホルダー１３ａ，１３ｂと一対のピン受け金具１５ａ，１５ｂが離間し、口金ピン１１ａ，１１ｂの抜き差しが自在となるよう形成されている。
【００１５】
又、一方のピン受けホルダー１３ａの内部には、給電コード２０ａ，２０ｂが接続された陰極側と陽極側の電極部２１ａ，２１ｂが配設されており、他方のピン受けホルダー１３ｂの内部には、左右のピン受け金具１５ｂ，１５ｂに電気的に接続している接点２２ａ，２２ｂが配設されており、それら電極部２１ａ，２１ｂと接点２２ａ，２２ｂの間には、スイッチ部材２３ａ，２３ｂが接点２２ａ，２２ｂに対して接離自在に配設されている。
【００１６】
スイッチ部材２３ａ，２３ｂは略く字形に折曲形成された金属板からなり、作動レバー１８を軸１４の軸線上に水平に倒した状態では図４に示すように電極部２１ａ，２１ｂのみに接触しており、作動レバー１８を軸１４に対し直角上向きとした状態で図２に示すように、ピン受けホルダー１３ｂ内の突部２４で押されて上端側がピン受けホルダー１３ｂ方向へ変形して接点２２ａ，２２ｂに接触するよう形成されている。これにより、作動レバー１８を倒した状態ではスイッチ部材２３ａ，２３ｂと接点２２ａ，２２ｂが離間していてピン受け金具１５ａ，１５ｂは非通電状態にあり、作動レバー１８を起こした状態ではスイッチ部材２３ａ，２３ｂと接点２２ａ，２２ｂが接触してピン受け金具１５ａ，１５ｂは通電状態になるように形成されている。
【００１７】
以上の構成により、作動レバー１８を倒した状態では、ソケット２に対する電球１の着脱が自在であると共に、ソケット２は非通電状態にあり、作動レバー１８を起こした状態で口金ピン１１ａ，１１ｂがピン受け金具１５ａ，１５ｂで挟持されて電球１が保持されると共に、ソケット２が通電状態になるので、電球１が不用意に高熱になることによる火傷や、間違ってピン受け金具１５ａ，１５ｂに作業者の指が触れてしまうことによる感電等が生じる虞れはない。
【００１８】
以下、図１〜図５で説明した構成におけるピン受け金具１５ａ，１５ｂ、電極部２１ａ，２１ｂ、接点２２ａ，２２ｂ、スイッチ部材２３ａ，２３ｂ等を変更した実施形態の他例について、その変更点を中心に図面を参照して説明し、前記実施形態と重複する説明、図示は省略する。
【００１９】
図６では、電極部２１ａ，２１ｂをピン受け金具１５ｂに一体的に設けて、接点２２ａ，２２ｂ、スイッチ部材２３ａ，２３ｂ等を不用とした例を示す。
すなわちこの例では、一対のピン受け金具１５ａ，１５ｂのうちの一方の金具１５ａに、口金ピン１１ａ，１１ｂを保持するための半円状の突環３０ａ，３０ａを設けて一方のピン受けホルダー１３ａ側に口金ピン１１ａ，１１ｂを差し込むようにし、他方のピン受けホルダー１３ｂ側に配したピン受け金具１５ｂに電極部２１ａ，２１ｂを一体に設け、さらに、ピン受けスプリング１６に代えてピン受けホルダー１３ａ，１３ｂ間に不図示のスプリングを介在させ、両ピン受け金具１５ａ，１５ｂが離間するように形成している。
【００２０】
そうして、作動レバー１８を倒した状態では押えバネ１７の押圧が解除され、不図示のスプリングの弾発力で一対のピン受けホルダー１３ａ，１３ｂと一対のピン受け金具１５ａ，１５ｂが離間し、ピン受け金具１５ａ，１５ａに対する口金ピン１１ａ，１１ｂの抜き差しが自在となると共に、ソケット２は非通電状態になる一方、作動レバー１８を起こした状態では押えバネ１７の押圧力により前後のピン受けホルダー１３ａ，１３ｂが閉動すると共に、ピン受け金具１５ａ，１５ａに差し込まれた口金ピン１１ａ，１１ｂの外周にピン受け金具１５ｂ，１５ｂが押圧して口金ピン１１ａ，１１ｂが挟持されると共に、ピン受け金具１５ａ，１５ｂが通電状態になるように形成されている。
【００２１】
よってこの例においても、前述の例と同様、電球１が不用意に高熱になることによる火傷や、間違ってピン受け金具１５ａ，１５ｂに作業者の指が触れてしまうことによる感電等が生じる虞れはない。さらにこの例では、電極部２１ａ，２１ｂをピン受け金具１５ｂ，１５ｂと一体に設けることで、接点２２ａ，２２ｂ、スイッチ部材２３ａ，２３ｂ、ピン受けスプリング１６等を不用として構成を簡素化し得る利点がある。
【００２２】
図７では、図６の変更例を示す。
すなわちこの例では、一方のピン受け金具１５ａ，１５ａに突環３０ａを設ける代わりに、その内周面を半円以上の曲面を持つと共に一部を開口１５ａ’とする略円筒形状の周面として、一方のピン受けホルダー１３ａ側に口金ピン１１ａ，１１ｂを差し込むようにしている。
又、他方のピン受けホルダー１３ｂ側に配したピン受け金具１５ｂには、電極部２１ａ，２１ｂを一体に設けると共に、前記ピン受け金具１５ａ，１５ａの開口１５ａ’に遊嵌する突部１５ｂ’を形成している。
【００２３】
そうして、作動レバー１８を倒した状態では押えバネ１７の押圧が解除され、不図示のスプリングの弾発力で一対のピン受けホルダー１３ａ，１３ｂと一対のピン受け金具１５ａ，１５ｂが離間し、ピン受け金具１５ａ，１５ａに対する口金ピン１１ａ，１１ｂの抜き差しが自在となると共に、ソケット２は非通電状態になる一方、作動レバー１８を起こした状態では押えバネ１７の押圧力により前後のピン受けホルダー１３ａ，１３ｂが閉動すると共に、ピン受け金具１５ａ，１５ａに差し込まれた口金ピン１１ａ，１１ｂの外周にピン受け金具１５ｂ，１５ｂの突部１５ｂ’が押圧して口金ピン１１ａ，１１ｂが挟持されると共に、ピン受け金具１５ａ，１５ｂが通電状態になるように形成されている。
よってこの例においても、図６の例と同様、電球１が不用意に高熱になることによる火傷や、間違ってピン受け金具１５ａ，１５ｂに作業者の指が触れてしまうことによる感電等が生じる虞れはないと共に、電極部２１ａ，２１ｂをピン受け金具１５ｂ，１５ｂと一体に設けることで、接点２２ａ，２２ｂ、スイッチ部材２３ａ，２３ｂ、ピン受けスプリング１６等を不用として構成を簡素化し得る利点がある。
【００２４】
以上、本発明の実施形態の数例を説明したが、本発明はこれら図示例に限定されるものではなく、特許請求の範囲に記載された技術的思想の範疇において種々の変更が可能であることは言うまでもない。
【００２５】
【発明の効果】
本発明に係る電球用ソケット及びこれを内蔵した照明装置は以上説明したように構成したので、作動レバーを倒さなければ電球の着脱を行うことが出来ず、作動レバーを倒した状態ではソケットは非通電状態になるので、電球の着脱に際し火傷や感電の心配がなく、安全性の高い製品を提供することができる。
また、電極部をピン受け金具と一体的に形成した場合は構造を簡素化してソケットの製作コストの低減が期待できる等の効果がある。
【図面の簡単な説明】
【図１】本発明の実施形態の一例を示す簡略断面図。
【図２】図１に示す電球用ソケットの拡大断面図。
【図３】図２に示す電球用ソケットの平面図。
【図４】図１に示す電有用ソケットの拡大断面図で、電球の脱着状態を表す。
【図５】図１に示す電球用ソケットのソケットケースを省略して示す分解斜視図。
【図６】本発明の実施形態の他例における電球用ソケットのソケットケースを省略して示す分解斜視図。
【図７】本発明の実施形態の他例における電球用ソケットのソケットケースを省略して示す分解斜視図。
【符号の説明】
Ａ：照明装置
１：電球
２：ソケット
１１ａ，１１ｂ：口金ピン
１２：ソケットケース
１３ａ，１３ｂ：ピン受けホルダー
１５ａ，１５ｂ：ピン受け金具
１８：作動レバー
２０ａ，２０ｂ：給電コード
２１ａ，２１ｂ：電極部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a light bulb socket for a lighting device such as a spotlight used in, for example, a theater stage or a television studio, and a lighting device incorporating this light bulb socket, and more specifically, to a socket in a lamp body of the lighting device. The present invention relates to an improvement in a detachable structure of a light bulb that is replaceably mounted.
[0002]
[Prior art]
In recent years, bi-post type (bipolar protruding type) halogen light bulbs are frequently used as light bulbs for lighting devices. In addition, as a bulb socket for mounting this type of halogen bulb in the lamp body in a replaceable manner, the front and rear two pin receiving holders are slidably held in the socket case, and the inner sides of these pin receiving holders facing each other. A pair of pin receiving brackets disposed opposite to each other, a spring that elastically urges the pin receiving bracket in a separating direction, a pressing spring that presses the pin receiving holder in the clamping direction, and activation of the pressing spring It has an actuating lever that is pressed to release by slack, and when the actuating lever is tilted, both pin holders are separated so that the bulb can be inserted and removed, and when the actuating lever is raised, both There is known a structure in which a pin holder is pressed in a holding direction by a holding spring so that a cap pin of a light bulb is held between a pair of pin fittings (for example, Shokai 5). See JP, etc. -288).
[0003]
[Problems to be solved by the invention]
According to the above conventional bulb socket, if the bulb is replaced while the socket is energized, such as forgetting to unplug the power cable, burns caused by the bulb becoming hot, There is a risk of electric shock or the like caused by touching a finger.
The present invention has been made in view of such a conventional situation, and the intended process is that the bulb is replaced while the socket is energized by forgetting to unplug the power supply. Another object of the present invention is to provide a highly safe light bulb socket that does not cause burns or electric shock.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the socket for a light bulb according to the present invention is characterized in that, in claim 1, the front and rear two pin receiving holders (13a, 13b) are slidably held in the socket case (12) . pin pair of pins disposed relative to the inner side and opposite the holder receiving receiving metal (15a, 15b) and, a spring (16) for resiliently urging the two pin receiving metal in separating direction, the pin A presser spring (17) that presses the receiving holder in the clamping direction, an operating lever (18) that is disposed so as to press the presser spring when it is actuated and is released by a slack movement, and an electrode portion (21a ) to which a power supply cord is connected 21b)
In a state where defeated work kinematic lever (18), both pin receiving holder (13a, 13b) together to freely connect or disconnect the then separated bulb (1), the electrode portions (21a, 21b) and the pin receiving metal ( 15a and 15b) are electrically separated from each other, and the pin bracket is not energized .
In the state where the operating lever (18) is raised , both the pin receiving holders (13a, 13b) are pressed in the holding direction by the holding springs (17) , and the cap pins (11a, 11b) of the bulb are paired with the pin receiving metal fittings. (15a, 15b) and the electrode portions (21a, 21b) and the pin brackets (15a, 15b) are electrically connected to energize the pin brackets. .
In claim 2, the front and rear two pin receiving holders (13a, 13b) are slidably held in the socket case (12), and a pair of the pin receiving holders are disposed opposite to each other. Pin receiving metal fittings (15a, 15b), a spring for elastically urging the two pin receiving metal parts in a separating direction, a presser spring (17) for pressing the pin receiving holder in the clamping direction, and starting the presser spring The electrode lever (21a) integrally formed with either one of the pair of pin receiving metal fittings (15b) and the operating lever (18) disposed so as to be pressed by the lever and opened by the slanting movement and the feeding cord are connected. , 21b), and the base pin (11a, 11b) is inserted into the other pin receiving metal fitting (15a) not provided with an electrode part,
In a state where the operating lever (18) is tilted, both the pin receiving holders (13a, 13b) are separated so that the bulb (1) can be freely inserted and removed, and the pin receiving metal fitting (15b) provided with the electrode part, The pin receiving metal fitting (15a) into which the cap pin is inserted is separated from the cap pin (11a, 11b) and no power is supplied to the cap pin (11a, 11b).
In the state where the operating lever (18) is raised, both the pin receiving holders (13a, 13b) are pressed in the holding direction by the holding spring (17), and the cap pins (11a, 11b) are paired with the pair of pin receiving brackets (15a). 15b), and the pin receiving metal fitting (15b) provided with the electrode portion and the pin receiving metal fitting (15a) into which the base pin is inserted come into contact with each other so that the base pins (11a, 11b) are energized. It is formed.
[0005]
According to such a configuration, the light bulb can be attached to and detached from the socket in a state where the operation lever is tilted, and the socket is in a non-energized state. On the other hand, when the actuating lever is raised, the light bulb is held in the socket, and the socket is energized only in this state. Therefore, there is no risk of burns or electric shock when the bulb is attached or detached.
[0006]
In the present invention, the electrode portion may be selected from either an aspect (Claim 1) formed separately from the pin receiving metal fitting or an aspect (Claim 2) formed integrally with any one of the pair of pin receiving metal fittings. can do.
[0007]
Further, in claim 1 or 2 of the present invention, the light bulb is not particularly limited, but today, in a lighting device such as a spotlight, a bi-post type light bulb is frequently used, and when a bi-post type light bulb is used. Correspondingly, a pair of pin brackets in the socket are arranged in two places on the left and right sides (Claim 3) .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view schematically showing an example of an embodiment of a light bulb socket and a lighting device incorporating the same according to the present invention. A lighting device A includes a socket 2 to which a light bulb 1 is mounted, a reflecting mirror 3, and a lens. 4. The lamp 5 is configured to store and hold these components and shield unnecessary light.
[0009]
The light bulb 1 is a bi-post type halogen light bulb that is frequently used in lighting devices, and as shown in FIG. 4 and the like, it has two-pole base pins 11a and 11b protruding from the lower surface side of a base 10 made of an insulating material such as porcelain. ing.
[0010]
The socket 2 is for the light bulb 1, and as shown in FIGS. 2 to 5, the front and rear two pin receiving holders 13a and 13b made of an insulating material such as porcelain are slidably held in the socket case 12, These holders 13 a and 13 b are loosely fitted on a shaft 14 that spans the central portion of the socket case 12, and are held so as to be slidable along the shaft 14.
[0011]
Reference numerals 15a and 15b denote a pair of pin receiving brackets disposed opposite to each other inside the pin receiving holders 13a and 13b, respectively, and in this example, a pair of pin receiving brackets so as to correspond to the bi-post type halogen light bulb 1. 15a and 15b are arranged in two places on the left and right.
[0012]
The pin receiving brackets 15a and 15b have semicircular inner surfaces on which the cap pins 11a and 11b can be slidably contacted. Protrusions (not shown) are formed on the outer surfaces of the pin receiving brackets 15a and 11b. It is slidably held between the front and rear pin receiving holders 13a and 13b by loosely fitting into recesses (not shown) formed in 13a and 13b. The pair of pin receiving brackets 15a and 15b are connected by a pin receiving spring 16 that is curved in a U-shape, and is urged outwardly to separate the two pin receiving brackets 15a and 15b.
[0013]
Reference numeral 17 denotes a presser spring curved in a waveform, and the presser spring 17 is disposed at the front portion of the operating lever 18 rotatably supported by a connecting pin 18a pivotally supported on the open end side of the shaft 14. It is interposed between the collar 19 and the pin receiving holder 13b, and urges the pin receiving holder 13b in a direction to close the pin receiving holder 13a.
[0014]
The position where the actuating lever 18 is pivotally attached to the open end side of the shaft 14 by the connecting pin 18a is such that the presser spring 17 is moved in the direction of the pin receiving holder 13b via the collar 19 when the actuating lever 18 is directed perpendicularly upward with respect to the shaft 14. On the other hand, when the actuating lever 18 is tilted horizontally on the axis of the shaft 14, the pressing is released. As a result, when the operating lever 18 is raised, the front and rear pin holders 13a and 13b are closed by the pressing force of the presser spring 17, and the cap pins 11a and 11b inserted between the pair of pin receivers 15a and 15b. On the other hand, when the operating lever 18 is tilted, the pressing of the presser spring 17 is released, and the pair of pin receiving holders 13a and 13b and the pair of pin receiving brackets 15a and 15b are released by the elastic force of the pin receiving spring 16. The cap pins 11a and 11b are formed so as to be separated and freely inserted and removed.
[0015]
Further, inside the one pin receiving holder 13a, there are disposed cathode side and anode side electrode portions 21a, 21b to which power supply cords 20a, 20b are connected, and inside the other pin receiving holder 13b. In addition, contacts 22a and 22b electrically connected to the left and right pin brackets 15b and 15b are disposed, and switch members 23a and 23b are provided between the electrode portions 21a and 21b and the contacts 22a and 22b. The contacts 22a and 22b are arranged so as to be able to contact and separate.
[0016]
The switch members 23a and 23b are made of a metal plate bent into a substantially square shape. When the operating lever 18 is horizontally tilted on the axis of the shaft 14, it contacts only the electrode portions 21a and 21b as shown in FIG. As shown in FIG. 2, with the operating lever 18 facing upward at a right angle with respect to the shaft 14, the upper end side is deformed in the direction of the pin receiving holder 13b by being pushed by the protrusion 24 in the pin receiving holder 13b. It is formed so as to contact 22a and 22b. As a result, the switch members 23a, 23b and the contacts 22a, 22b are separated from each other when the operating lever 18 is tilted, and the pin receiving brackets 15a, 15b are in a non-energized state, while the switch member 23a is raised when the operating lever 18 is raised. , 23b and the contacts 22a, 22b come into contact with each other and the pin receiving brackets 15a, 15b are formed in an energized state.
[0017]
With the above configuration, the light bulb 1 can be freely attached to and detached from the socket 2 when the operating lever 18 is tilted, and the socket 2 is in a non-energized state, and the cap pins 11a and 11b are raised when the operating lever 18 is raised. Since the light bulb 1 is held by being pinched by the pin brackets 15a and 15b and the socket 2 is energized, burns due to the light bulb 1 being inadvertently heated up, or mistakenly attached to the pin brackets 15a and 15b. There is no possibility of electric shock or the like due to the operator's finger touching.
[0018]
Hereinafter, with respect to other examples of the embodiment in which the pin receiving brackets 15a and 15b, the electrode portions 21a and 21b, the contacts 22a and 22b, the switch members 23a and 23b, etc. in the configuration described with reference to FIGS. Description will be made with reference to the drawings at the center, and description and illustration overlapping with the above-described embodiment will be omitted.
[0019]
FIG. 6 shows an example in which the electrode portions 21a and 21b are integrally provided on the pin receiving bracket 15b, and the contacts 22a and 22b, the switch members 23a and 23b, and the like are unnecessary.
In other words, in this example, one metal fitting 15a of the pair of pin metal fittings 15a, 15b is provided with semicircular protruding rings 30a, 30a for holding the cap pins 11a, 11b, and one pin receiving holder 13a. The base pins 11a and 11b are inserted on the side, and the electrode portions 21a and 21b are integrally provided on the pin receiving bracket 15b arranged on the other pin receiving holder 13b side. Further, the pin receiving spring 13 is replaced with the pin receiving holder 13a. , 13b, a spring (not shown) is interposed between the two pin receiving brackets 15a, 15b.
[0020]
Then, when the operating lever 18 is tilted, the pressing of the presser spring 17 is released, and the pair of pin receiving holders 13a and 13b and the pair of pin receiving brackets 15a and 15b are separated by the elastic force of a spring (not shown). The cap pins 11a and 11b can be freely inserted into and removed from the pin holders 15a and 15a, and the socket 2 is in a non-energized state. On the other hand, when the operating lever 18 is raised, the front and rear pin holders are pressed by the pressing force of the presser spring 17. While the holders 13a and 13b are closed, the pin holders 15b and 15b are pressed against the outer periphery of the base pins 11a and 11b inserted into the pin receivers 15a and 15a so that the base pins 11a and 11b are sandwiched. The metal fittings 15a and 15b are formed so as to be energized.
[0021]
Therefore, in this example as well, as in the above-described example, there is a risk that a burn due to the light bulb 1 being inadvertently heated or an electric shock due to an operator's finger touching the pin receiving brackets 15a and 15b by mistake. There is no. Furthermore, in this example, by providing the electrode portions 21a and 21b integrally with the pin receiving brackets 15b and 15b, there is an advantage that the configuration can be simplified without using the contacts 22a and 22b, the switch members 23a and 23b, the pin receiving spring 16 and the like. is there.
[0022]
FIG. 7 shows a modified example of FIG.
That is, in this example, one of the pin receiving metal 15a, instead of providing the突環30a to 15a, as the peripheral surface of the substantially cylindrical shape of a portion with the opening 15a 'with the inner peripheral surface thereof with a semicircular or more curved The base pins 11a and 11b are inserted into one pin receiving holder 13a side.
Further, the pin receiving bracket 15b arranged on the other pin receiving holder 13b side is provided with electrode portions 21a and 21b integrally, and a protrusion 15b ′ which is loosely fitted into the opening 15a ′ of the pin receiving bracket 15a and 15a. Forming.
[0023]
Then, when the operating lever 18 is tilted, the pressing of the presser spring 17 is released, and the pair of pin receiving holders 13a and 13b and the pair of pin receiving brackets 15a and 15b are separated by the elastic force of a spring (not shown). The cap pins 11a and 11b can be freely inserted into and removed from the pin holders 15a and 15a, and the socket 2 is in a non-energized state. On the other hand, when the operating lever 18 is raised, the front and rear pin holders are pressed by the pressing force of the presser spring 17. While the holders 13a and 13b are closed, the protrusions 15b 'of the pin receiving brackets 15b and 15b are pressed against the outer periphery of the base pins 11a and 11b inserted into the pin receiving brackets 15a and 15a so that the base pins 11a and 11b are sandwiched. In addition, the pin receiving brackets 15a and 15b are formed so as to be energized.
Therefore, in this example as well, as in the example of FIG. 6, there are burns caused by inadvertently high temperature of the light bulb 1, electric shock caused by an operator's finger touching the pin receiving brackets 15 a and 15 b by mistake. There is no fear, and by providing the electrode portions 21a and 21b integrally with the pin receiving brackets 15b and 15b, the contact 22a and 22b, the switch members 23a and 23b, the pin receiving spring 16 and the like can be omitted, thereby simplifying the configuration. There is.
[0024]
As mentioned above, although several examples of embodiment of this invention were demonstrated, this invention is not limited to these illustration examples, A various change is possible in the category of the technical idea described in the claim. Needless to say.
[0025]
【The invention's effect】
Since the light bulb socket and the lighting device incorporating the light bulb according to the present invention are configured as described above, the light bulb cannot be attached or detached unless the operating lever is tilted. Since it is energized, there is no risk of burns or electric shock when attaching or detaching the light bulb, and a highly safe product can be provided.
Further, when the electrode portion is formed integrally with the pin bracket, there is an effect that the structure can be simplified and the manufacturing cost of the socket can be expected to be reduced.
[Brief description of the drawings]
FIG. 1 is a simplified cross-sectional view showing an example of an embodiment of the present invention.
2 is an enlarged cross-sectional view of the light bulb socket shown in FIG. 1. FIG.
3 is a plan view of the light bulb socket shown in FIG. 2. FIG.
FIG. 4 is an enlarged cross-sectional view of the electric useful socket shown in FIG.
FIG. 5 is an exploded perspective view showing the socket for the light bulb shown in FIG. 1 with the socket case omitted.
FIG. 6 is an exploded perspective view showing the socket for a light bulb in another example of the embodiment of the present invention with the socket case omitted.
FIG. 7 is an exploded perspective view showing the socket for a light bulb in another example of the embodiment with the socket case omitted.
[Explanation of symbols]
A: Lighting device 1: Light bulb 2: Socket 11a, 11b: Cap pin 12: Socket case 13a, 13b: Pin receiving holder 15a, 15b: Pin receiving bracket 18: Actuating lever 20a, 20b: Feeding cord 21a, 21b: Electrode section

Claims

A pair of pin receiving metal (15a, 15b) that sandwich the base pins of the bulb (1) (11a, 11b) a bulb socket having two pins before and after the socket casing (12) in the receiving holders (13a, the 13b) while slidably retained, these pin receiving opposite the pair of pins disposed relative to the inward support bracket holder (15a, 15b) and then, the elastic in the separating direction of the two pin receiving metal A spring (16) that urges and urges, a presser spring (17) that presses the pin receiving holder in the clamping direction, and an operating lever (18) that is arranged so as to press the presser spring when it is activated and release it when it is bent down. And electrode portions (21a, 21b) to which the feeding cord is connected,
In a state where defeated work kinematic lever (18), both pin receiving holder (13a, 13b) together to freely connect or disconnect the then separated bulb (1), the electrode portions (21a, 21b) and the pin receiving metal ( 15a, 15b) is a state in which current is not made to the electrically separated to pin receiving metal,
In the state where the operating lever (18) is raised , both the pin receiving holders (13a, 13b) are pressed in the holding direction by the holding springs (17) , and the cap pins (11a, 11b) of the bulb are paired with the pin receiving metal fittings. (15a, 15b) and the electrode portions (21a, 21b) and the pin brackets (15a, 15b) are electrically connected to energize the pin brackets. Light bulb socket.

A socket for a light bulb having a pair of pin receiving metal fittings (15a, 15b) for holding a cap pin (11a, 11b) of a light bulb (1), and two pin receiving holders (13a, 13b) is slidably held, and a pair of pin receiving brackets (15a, 15b) disposed opposite to each other inside the pin receiving holders, and both the pin receiving brackets are elastically moved away from each other. A spring for energizing, a presser spring (17) for pressing the pin receiving holder in the clamping direction, an operating lever (18) disposed so as to press the presser spring when it is activated and to be released by a slack movement; It has an electrode part (21a, 21b) integrally formed with either one of the pair of pin receiving metal fittings (15b), and the base pin (11a, 11b) is an electrode. Together are inserted into the other pin receiving metal without a (15a),
In a state where the operating lever (18) is tilted, both the pin receiving holders (13a, 13b) are separated so that the bulb (1) can be freely inserted and removed, and the pin receiving metal fitting (15b) provided with the electrode part, The pin receiving metal fitting (15a) into which the cap pin is inserted is separated from the cap pin (11a, 11b) and no power is supplied to the cap pin (11a, 11b).
In the state where the operating lever (18) is raised, both the pin receiving holders (13a, 13b) are pressed in the holding direction by the holding spring (17), and the cap pins (11a, 11b) are paired with the pair of pin receiving brackets (15a). 15b), and the pin receiving metal fitting (15b) provided with the electrode portion and the pin receiving metal fitting (15a) into which the base pin is inserted come into contact with each other so that the base pins (11a, 11b) are energized. A light bulb socket characterized by being formed .

The light bulb (1) is a bi-post type halogen light bulb having protruding two-pole base pins (11a, 11b), and the pair of pin brackets (15a, 15b) correspond to the base pins of the light bulb. The socket for light bulbs of Claim 1 or 2 distribute | arranged to right and left two places .

A light bulb socket (2) having a light bulb (1) having a cap pin, a pair of pin holders (15a, 15b) for holding the cap pin of the light bulb by a resilient opening / closing mechanism, a reflecting mirror (3), a lens An illumination device comprising optical parts such as (4) arranged at appropriate positions in the lamp body (5), wherein the bulb socket (2) is any one of claims 1 to 3. Is a lighting device.