To provide a low-cost vehicular direction indicator which can sequentially perform lighting efficiently with an excellent appearance and a reduced number of components.SOLUTION: A vehicular direction indicator 1 includes: a columnar light guide member 10 extending in one direction; a light source 20 for supplying light to the light guide member 10; a shading member 30 having a cylindrical shape for covering the circumference of the light guide member 10; and a drive part 40 for rotating the shading member 30. When the light from the light source 20 is supplied to an inside from one end face 11 in a longitudinal direction and guided to a side face 12 along the longitudinal direction, the light guide member 10 emits the light in a belt-like shape. The shading member 30 includes an opening part 32 extending in an axial direction Da. The opening part 32 is formed in such a way that an opening width W in a circumferential direction Dc becomes larger as it goes from one end toward the other end in the axial direction Da, and that a maximum opening width Wmax in the circumferential direction Dc is smaller than a total circumferential length L of a side face 31 of the cylindrical shape. While the light source 20 is turned on and when the drive part 40 rotates the shading member 30, the vehicular direction indicator 1 sequentially performs lighting.SELECTED DRAWING: Figure 1
【課題】少ない部品で効率的に見栄え良く連鎖式に点灯可能な低コストの車両用方向指示器を提供する。【解決手段】車両用方向指示器1は、一方向に延びる柱状の導光部材10と、導光部材10に光を供給する光源20と、導光部材10の周囲を覆う円筒形状の遮光部材30と、遮光部材30を回転させる駆動部40と、を備える。導光部材10は、光源20からの光が長手方向の一端面11から内部に供給され長手方向に沿った側面12に導かれることで帯状に発光する。遮光部材30は、軸方向Daに延びる開口部32を有し、開口部32は、周方向Dcの開口幅Wが軸方向Daの一端から他端に向かうに従い大きくなり、且つ、周方向Dcの最大開口幅Wmaxが円筒形状の側面31の全周長Lよりも小さくなるように形成されている。車両用方向指示器1は、光源20が点灯状態で、駆動部40が遮光部材30を回転させることによって連鎖式に点灯する。【選択図】図1
VEHICULAR DIRECTION INDICATOR
車両用方向指示器
01.06.2022
Patent
Elektronische Ressource
Japanisch
IPC: | B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES |
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