Title:
DISPENSER
Document Type and Number:
WIPO Patent Application WO/2021/059696
Kind Code:
A1
Abstract:
In a dispenser (1) according to the present invention, a pump chamber (30) is formed by means of a main body (32) having a recessed portion (39), and a lid (31) covering an opening portion (33) of the main body, wherein a liquid inside the pump chamber is caused to be discharged from a nozzle portion (4) by performing a discharge operation in which the lid (31) is deformed by being pressed toward the inside of the pump chamber, and liquid is caused to flow into the pump chamber (30) by releasing the discharge operation. A coil spring (7) which urges the lid (31) toward the outside of the pump chamber is provided inside the pump chamber (30), wherein the diameter (R1) of the coil spring is greater than the radius (R2) of the lid (31), and an amount of deformation (L1) of the lid (31) is at least equal to 1/3 of the diameter of the lid (31).
Inventors:
YAMADA TAKASHI (JP)
Application Number:
PCT/JP2020/027975
Publication Date:
April 01, 2021
Filing Date:
July 17, 2020
Export Citation:
Assignee:
KAO CORP (JP)
International Classes:
F04B9/14; B65D47/34; B65D83/00
Foreign References:
| JP2001180728A | 2001-07-03 | |||
| US20060049208A1 | 2006-03-09 | |||
| JPH0685253U | 1994-12-06 | |||
| JP2015520081A | 2015-07-16 | |||
| JP2007509827A | 2007-04-19 | |||
| JP2013543819A | 2013-12-09 | |||
| JP2001063781A | 2001-03-13 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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