Title:
DISPENSER
Document Type and Number:
WIPO Patent Application WO/2018/004002
Kind Code:
A1
Abstract:
Provided is a dispenser whereby leakage of contents from a nozzle tip can be suppressed when spouting of contents is stopped. This dispenser 1 is provided with: a syringe body 10 having a charging space M for contents and a spouting hole 45a at a distal end thereof; a plunger 20 for spouting the contents in the charging space M from the spouting hole 45a, the plunger 20 being slid inside the syringe body 10 by application of a pushing force thereto; and a piston 30 provided to a distal-end portion of the plunger 20, the piston 30 being formed from an elastic material; the dispenser 1 being characterized in that a gap G is provided between the internal peripheral surface of the syringe body 10 and the external peripheral surface of the piston 30, the gap G is deformed so as to narrow by the pushing in of the plunger 20, and the rear leakage risk equal to (gap (G) area/final spouting hole area) after deformation of the piston 30 is from 0 to less than 1.
Inventors:
KITA HIROTAKA (JP)
YOSHIMURA KAZUHISA (JP)
TOMA TORU (JP)
YOSHIMURA KAZUHISA (JP)
TOMA TORU (JP)
Application Number:
PCT/JP2017/024251
Publication Date:
January 04, 2018
Filing Date:
June 30, 2017
Export Citation:
Assignee:
KURARAY NORITAKE DENTAL INC (JP)
YOSHINO KOGYOSHO CO LTD (JP)
YOSHINO KOGYOSHO CO LTD (JP)
International Classes:
B05C5/00; B05C17/01; B65D83/76
Foreign References:
| JP2011115585A | 2011-06-16 | |||
| JP2010142573A | 2010-07-01 | |||
| JP2009240427A | 2009-10-22 | |||
| JP2005237780A | 2005-09-08 | |||
| JPS60151020A | 1985-08-08 | |||
| JPS5817862A | 1983-02-02 |
Other References:
See also references of EP 3479909A4
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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