| 摘要 |
PURPOSE:To have effective transportation of parts by installing two vibration systems each of which vibrates in two directions, exciting one of the vibration systems through excitation of the other system, and by producing a phase difference between the two systems. CONSTITUTION:When a voltage is impressed on piezo elements 17, 17 through leads 18, 18, a lief spring 14 is excited sideways to cause excitation of another lief spring 16 in the vertical direction. This brings an upper mass 12 and a parts container 11 into rotary, twisting and vertical vibrations. Because this lief spring 16 is inclined from the horizontal state a certain angle down with its right side, the period delay of the vertical vibration of the lief spring 14 with resped to its horizontal vibration will become oriented rightward to produce a long elliptical vibration in the direction of arrow B, and the parts advance counterclockwise. This configuration allows use of the device at a frequency in the neighborhood of the resonance point to assure an effective transportation. |
