| 摘要 |
PURPOSE:To enable a self-luminous type road tack to be easily tacked in snowy areas and may not interfere with the snow removing work during the snow season. CONSTITUTION:A compound semiconductor thin film solar battery 3, a coin type small capacity storage battery 4, a luminous body 2 and a controller 5 are stored in a tack body 1 and the tack body 1 is made compact. During non-snow seasons, the tack body 1 is fitted in a storage case 7, which is buried in the road, protrusively beyond a road surface 13. During snow seasons, the tack body 1 is stored and fitted inside the storage case 7 upside down so that its back may be about level with the road surface 13. |
