| 摘要 |
PROBLEM TO BE SOLVED: To improve fun by inscribing recording grooves on the outer peripheral surface of a tapered cup body which allows grooving by means of a needle of a pickup for sound recording and reproducing which comes into pressurized contact with this outer peripheral surface to record sounds, returning this needle to a reproduction restarting position, changing the needle to a gentle needle angle and reproducing the waves of these recording grooves by the vibration of the needle. SOLUTION: The commercially marketed cup body 10 is fitted and fixed to a cup body fitting and holding section 6. When a rotating body 5 is rotated counterclockwise by pulley grooves 7, the rotating body 5 is moved rightward by the feed action of a long screw 3 and a long nut 2. When a user speaks loud by bringing his mouth closer to a cone 25 at this time, the needle 21 for sound recording and reproducing of the pickup 20 in pressurized contact with the tapered outer peripheral surface 11 of the cup body 10 vibrates and inscribes the recording grooves R on the outer peripheral surface 11, thereby recording the sounds. The pickup 20 is raised after the sound recording and the rotating body 5 is returned. The needle 21 is then changed to the needle angle gentler than that at the time of the sound recording and thereafter, the pickup is lowered and the rotating body 5 is rotated counterclockwise. As a result, the needle 21 and the cone 25 are vibrated by the recording grooves R, by which the recorded sounds are reproduced. The gramophone of a low cost in thus obtd. |
