LIGHTING DEVICE

• Main Authors: HONJO SHIGERU, IKARUGI HIROAKI, KANEKO KENTARO
• Format: Patent
• Language: English; Japanese
• Published: 25.04.2019
• Subjects: BLASTING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

To provide a ceiling lighting device in which a coil spring hardly disturbs wiring work and which has favorable safety and workability.SOLUTION: Between a base unit 2 and a cover part 3, the cover part is provided in a suspendable manner with respect to the base unit via a suspension mechanism. The suspension mechanism has two spring arms 7c extending in the longer direction of a ceiling lighting device, and it has a one-side coil spring which is provided rotatably so as to energize a single operation part 7d formed at tips of the spring arms 7c to a cover part bottom plate side via a coil part 7a formed only on a side part of one of the spring arms. At the base unit, a fixing metal fitting 9 is provided having a window formed so that the one-side coil spring can be inserted via the operation part. A bracket 9e is provided which can be engaged with two spring arms of the one-side coil spring in an insertion state to the fixing metal fitting and the single operation part, so that the cover part can be raised to the base unit side via the bracket.SELECTED DRAWING: Figure 9 【課題】コイルバネが配線作業の邪魔になることが少なく、安全性と作業性の良好な天井照明装置を提供する。【解決手段】ベースユニット２とカバー部３の間に、吊り下げ機構を介してカバー部をベースユニットに対して吊下自在に設ける。吊り下げ機構は、カバー部に、天井照明装置の長手方向に伸延する２本のバネ腕７ｃを有し、それらバネ腕７ｃの先端に形成された単一の操作部７ｄをバネ腕の一方の側部にのみ形成されたコイル部７ａを介して、カバー部底板側に付勢する形で回動自在に設けられた片側コイルバネを設け、ベースユニットに、片側コイルバネを操作部を介して挿入自在に形成された窓を有する固定金具９を設けると共に、固定金具に挿入状態にある片側コイルバネの２本のバネ腕及び単一の操作部と係合し得るブラケット９ｅを設け、ブラケットを介してカバー部をベースユニット側に引き上げ得るように構成する。【選択図】図９