| 摘要 |
PURPOSE: To facilitate the adjustment of gear meshing of light collecting prisms and a driving roller to attain the sure meshing with a sunlight collecting device which is arranged with one piece of the light collecting prism or plural pieces of the light collecting prisms at prescribed intervals in a light collecting section and is constituted to emit the sunlight refracted by the light collecting prisms always in a prescribed direction by controlling the rotating angle of the light collecting prisms according to the altitude and bearing of the sun. CONSTITUTION: Three driving rollers 8a, 8b, 8c are positioned around a driving roller 21 of a rotating ring 30 holding the light collecting prisms 20, one piece on the inner side of the rotating ring 30 and two pieces on the outer side thereof. Guide fittings 40a, 40b, 40c are disposed nearly equally spaced positions in the circumferential direction of the rotating ring 30 outside the range occupied by these rollers. The one driven roller is positioned on the same axial line as the axial line of the driving roller and further, sliding bearings or rolling bearings are disposed within the range occupied by the guide fittings and the rollers. |
