摘要 |
<p>PROBLEM TO BE SOLVED: To make a device having a smoke exhaust function and a sunlight collecting function possible to operate without using a commercial power supply. SOLUTION: This device 1 has a lower frame 2, an upper frame 3 which covers the lower frame 2 when it is descending, and an automatic opening/ closing device 4 which moves the upper frame 3 vertically. The upper frame 3 has two light collecting prisms 33a, 33b, a transparent cover which covers the prisms, rotational driving devices 34a, 34b which rotate the prisms, and a controller 35 which controls the rotational driving devices so as to rotate the prisms in a proper angle corresponding to the position of the sun, and a solar battery 36 which supplies electric power to the rotational driving device and the controller is placed in the transparent cover 31. The automatic opening/ closing device 4 has X-arms 41, 42 and an elevating motor 46, the motor 46 is supplied with electric power by the solar battery 36 by operation of a operating switch to rotate and swing the arms 41, 42 to move the upper frame 3 vertically.</p> |