PROBLEM TO BE SOLVED: To provide a roller pump that can suppress occurrence of entrainment or breakage of a tube.SOLUTION: The roller pump includes: a sun gear 4 provided to the tip end of a drive shaft three rotating-revolving rollers 5 in which planetary gears 5a to be engaged with the sun gear 4 and an internal tooth 10 are formed and three revolving rollers 6 in which planetary gears 6a to be engaged with the sun gear 4 and the internal tooth 10 are formed, in the circular recessed part of a center part of a tube case 2. A tube 12 is pressed and held by a tube pressing face 5b, a ring roller 6c, and a guide face 11, and the liquid in the tube 12 is fed by the tube pressing face 5b and the ring roller 6c.COPYRIGHT: (C)2013,JPO&INPIT【課題】チューブの巻き込みや破損が生じることを抑制したローラポンプである。【解決手段】チューブケース2の中央部の円形状凹部内に、駆動軸の先端に設けられる太陽歯車4と、該太陽歯車4及び内歯10とに噛合する遊星歯車5aを形成した3個の自公転ローラ5と、前記太陽歯車4及び内歯10とに噛合する遊星歯車6aを形成した3個の公転ローラ6を備え、チューブ押圧面5b及びリングローラ6cとガイド面11とでチューブ12を押圧挟持して、チューブ押圧面5b及びリングローラ6cとでチューブ12内の流体を送液させる。【選択図】図1
