Title:
EMITTER AND DRIP IRRIGATION TUBE
Document Type and Number:
WIPO Patent Application WO/2021/039831
Kind Code:
A1
Abstract:
The present invention relates to providing an emitter capable of controlling a constant discharge of irrigation liquid over a wide range of pressure changes in a tube. A flow rate adjusting part of the emitter has a pedestal having a communication hole for allowing the irrigation liquid to flow to the discharge port, a flexible diaphragm portion that deforms toward the pedestal when receiving the pressure of the irrigation liquid in the tube, and a pedestal support portion that supports the pedestal so as to separate the pedestal from the diaphragm portion and the inner wall surface of the tube. The pedestal support portion is flexible and deforms so that the pedestal moves toward the inner wall surface of the tube when the diaphragm portion presses the pedestal. The pedestal has a first pedestal surface arranged to face the diaphragm portion and a second pedestal surface arranged to face the inner wall surface of the tube.
Inventors:
KIDACHI MASAHIRO
Application Number:
PCT/JP2020/032142
Publication Date:
March 04, 2021
Filing Date:
August 26, 2020
Export Citation:
Assignee:
ENPLAS CORP (JP)
International Classes:
A01G25/02
Domestic Patent References:
| WO2015080126A1 | 2015-06-04 |
Foreign References:
| US20050284966A1 | 2005-12-29 |
Attorney, Agent or Firm:
WASHIDA & ASSOCIATES (JP)
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