Title:
TUBE PUMP
Document Type and Number:
Japanese Patent JP2023184169
Kind Code:
A
Abstract:
To restrain pulsation from occurring in an elastic tube.SOLUTION: A tube pump 2 comprises a housing 11 in which a large-diameter tube 1a (elastic tube) is arranged along a side wall 11a formed in a nearly horseshoe shape, and a roller 13 to be moved along the side wall 11a of the housing 11. The side wall 11a is provided with a pressure relief section C having an arc with a larger radius than that of a blockage section A in which the large-diameter tube 1a is pressed and blocked, between the blockage section, and a separation section B having a shape gradually separating from a rotation center. While the roller 13 moves in the pressure relief section C, a communication port for establishing communication between a portion on the upstream side of the roller 13 and a portion on the downstream side is formed in the large-diameter tube 1a pressed by the roller 13, and the size of the communication port is kept constant.SELECTED DRAWING: Figure 1
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Inventors:
YOSHIMOTO KENSHI
MATSUZAKI MITSUMASA
MATSUZAKI MITSUMASA
Application Number:
JP2022098158A
Publication Date:
December 28, 2023
Filing Date:
June 17, 2022
Export Citation:
Assignee:
SHIBUYA KOGYO CO LTD
International Classes:
F04C5/00; F04C15/06
Attorney, Agent or Firm:
Makoto Kanzaki