Title:
VALVE MEMBER AND BREAST PUMP
Document Type and Number:
Japanese Patent JP2022090667
Kind Code:
A
Abstract:
To make a valve member easy to wash.SOLUTION: A valve member 41 which temporarily can store milk in an internal passage in a negative pressure state and can flow out the milk stored in a normal pressure state includes: a cap 42 which is provided with a partition wall 45 that is fitted to an end part 26a of the internal passage 23 and partitions it into a first space 46 on an inflow side of the milk and a second space 47 on an outflow side of the milk and a through-hole 53 connecting the first space 46 and the second space 47 on the partition wall 45; and a valve 43 which is arranged in the second space 47, closes the through-hole 53 when the negative pressure state is created, and opens the through-hole 53 in the normal pressure state. The valve 43 is provided with a plate part 57 for closing the through-hole 53 and a fitting projection 58 projecting from the plate part 57. The partition wall 45 is provided with a mounting hole 59 with which the fitting projection 58 is engaged.SELECTED DRAWING: Figure 3
Inventors:
ISHIKAWA TATSUYUKI
Application Number:
JP2020203094A
Publication Date:
June 20, 2022
Filing Date:
December 08, 2020
Export Citation:
Assignee:
PIGEON CORP
International Classes:
A61M1/06
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda