TUBE PUMP

摘要

There is provided a tube pump including: a first roller unit and a second roller unit that rotate around an axis while being in contact with a tube; a drive shaft coupled to the first roller unit; a drive cylinder arranged on an outer peripheral side of the drive shaft and coupled to the second roller unit; a first drive unit that rotates a first drive shaft around a first axis; a second drive unit that rotates a second drive shaft around a second axis; and a transmission mechanism that transmits a drive force of the second drive shaft to an outer peripheral surface of the drive cylinder, in which the first drive unit and the second drive unit are arranged so that a first arrangement position of the first drive unit and a second arrangement position of the second drive unit in a first axis direction overlap with each other.

主权项

1. A tube pump comprising:
a first contact member that rotates around a first axis while being in contact with a tube arranged in a circular-arc shape around the first axis; a second contact member that rotates around the first axis while being in contact with the tube; a shaft member that is arranged on the first axis and is coupled to the first contact member; a cylindrical member that is rotatably arranged around the first axis independently from the shaft member on an outer peripheral side of the shaft member, and is coupled to the second contact member; a first drive unit that has a first drive shaft arranged on the first axis and coupled to the shaft member, and rotates the first drive shaft around the first axis; a second drive unit that has a second drive shaft arranged on a second axis parallel to the first axis, and rotates the second drive shaft around the second axis; and a transmission unit that transmits a drive force of the second drive shaft around the second axis to an outer peripheral surface of the cylindrical member, and rotates the cylindrical member around the first axis, wherein the first drive unit and the second drive unit are arranged so that a first arrangement position of the first drive unit and a second arrangement position of the second drive unit in a first axis direction along the first axis overlap with each other.