| 摘要 |
PURPOSE:To facilitate the tube escape action, tube displacement, and the transfer between suction and discharge sides by forming a pumping tube made of an elastic material in a U-shape so that squeeze rollers can roll and press the tube by their revolution. CONSTITUTION:A pumping tube 2 made of an elastic material is internally inserted in a U-shape, and when squeeze rollers 4, 4' are revolved, they are rolled and press the tube interior and convey a transported material from a suction side A to a discharge side B. That is, when a support arm 3 is rotated counter- clockwise as shown by an arrow NA, the material to be transferred is conveyed from the arrow A direction to the arrow B direction, therefore the side of tightening metals 7a, 7b is made the suction side and the side of tightening metals 7'a, 7'b is made the discharge side. In this case, swaying levers 10, 11 are fixed, swaying levers 12, 13 are pulled at a fixed spring force by tensile springs 22, 23, thus the swaying levers 12, 13 are held at a predetermined position.
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