Title:
EMITTER AND TUBE FOR DRIP IRRIGATION
Document Type and Number:
WIPO Patent Application WO/2018/055977
Kind Code:
A1
Abstract:
An emitter according to the present invention includes a water intake part, a pressure-reducing flow path part, a first flow-rate adjusting part, a second flow-rate adjusting part, and a discharge part. The first flow-rate adjusting part includes a first valve seat, a first communication hole, a first diaphragm part, and a valve body. The valve body is disposed between the first diaphragm part and an opening of the first communication hole so as to leave a gap with respect to the opening of the first communication hole. The valve body moves toward the first communication hole as the first diaphragm part approaches the first valve seat. The shape of the valve body is such that, when the traveling distance of the valve body is less than or equal to a predetermined value, the gap decreases as the valve body moves and such that, when the traveling distance of the valve body exceeds the predetermined value, the gap increases as the valve body moves.
Inventors:
NOGUCHI KOJI
Application Number:
PCT/JP2017/030435
Publication Date:
March 29, 2018
Filing Date:
August 25, 2017
Export Citation:
Assignee:
ENPLAS CORP (JP)
International Classes:
A01G25/02; A01G25/06; A01G27/00
Domestic Patent References:
| WO2017098858A1 | 2017-06-15 | |||
| WO2015080127A1 | 2015-06-04 | |||
| WO2014050140A1 | 2014-04-03 |
Foreign References:
| JP2010046094A | 2010-03-04 | |||
| US20160057947A1 | 2016-03-03 |
Other References:
See also references of EP 3516952A4
Attorney, Agent or Firm:
WASHIDA, Kimihito (JP)
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