Title:
TRIGGER SPRAYER
Document Type and Number:
WIPO Patent Application WO/2022/145305
Kind Code:
A1
Abstract:
Provided is a trigger sprayer having excellent spray response and spray stability. The present invention is a trigger sprayer (100) comprising a base body (10) having a main cylinder part (2) in which liquid can be stored and a sub cylinder part (3), a piston part (20) which is slidable along an inner wall of the main cylinder part (2), a trigger (30) for sliding the piston part (20), a first valve (V1) which opens and closes in accordance with the pressure inside the main cylinder part (2), and a second valve (V2) which opens and closes in accordance with the pressure of the liquid, wherein: the second valve (V2) has a second valve piston part (11a) which is slidable along an inner wall (3a) of the sub cylinder part (3), and a dome spring part (11b) having an inverted dome shape for biasing the second valve piston part (11a); and the dome spring part (11b) is configured to be elastically deformed.
Inventors:
SHAZUKI MITSUAKI (JP)
Application Number:
PCT/JP2021/047552
Publication Date:
July 07, 2022
Filing Date:
December 22, 2021
Export Citation:
Assignee:
CANYON CORP (JP)
International Classes:
B05B11/00; B65D47/34
Domestic Patent References:
| WO2013079418A1 | 2013-06-06 |
Foreign References:
| US20140319244A1 | 2014-10-30 | |||
| JP2018069186A | 2018-05-10 | |||
| JP2007289840A | 2007-11-08 | |||
| JP2016026862A | 2016-02-18 | |||
| JP2013057311A | 2013-03-28 | |||
| EP0798050A1 | 1997-10-01 |
Attorney, Agent or Firm:
SHIRASAKI Shinji (JP)
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