| 摘要 |
PURPOSE:To form a desired mark on a road surface by molten paint having viscosity while a running truck is allowed to run. CONSTITUTION:A molten paint storage tank 2 is provided on a running truck 1 and molten paint injection orifices 3a, 3b are formed to the bottom wall 20 of the storage tank 2 and pistons 4a, 4b injecting the molten paint in the storage tank 2 from the injection orifices 3a, 3b are arranged so as to be reciprocally movable in the axial direction thereof with respect to the injection orifices 3a, 3b. The moving direction of the pistons 4a, 4b and the axial direction of the injection orifices 3a, 3b are set to the synthetic vector direction of the vector in the running direction of the running truck 1 and the vector in the gravity direction acting on the molten paint. |
