Title:
DRAIN VALVE DEVICE
Document Type and Number:
Japanese Patent JP2019052442
Kind Code:
A
Abstract:
To provide the drain valve device that can suppress occurrence of variation in an amount of washing water supplied from a washing water tank to a bedpan, and can suppress reduction in overflow capacity.SOLUTION: A throttle part 53 for reducing an open cross-sectional area of a drain flow passage 50 is provided on an inner surface 52c of a side wall part 52 of a drain portion body member 48 over whole circumference of the inner surface 52c, and the throttle part 53 is formed with a notch part 53a that is cut out in a direction (outside) in which the open cross-sectional area of the drain flow passage 50 spreads.SELECTED DRAWING: Figure 6
Inventors:
TANIMOTO HIDEKI
SHINOHARA KOKI
KOGA HARUKA
HIEJIMA TAKASHI
SHINOHARA KOKI
KOGA HARUKA
HIEJIMA TAKASHI
Application Number:
JP2017175861A
Publication Date:
April 04, 2019
Filing Date:
September 13, 2017
Export Citation:
Assignee:
TOTO LTD
International Classes:
E03D1/34
Domestic Patent References:
| JP2016172985A | 2016-09-29 | |||
| JP2013209812A | 2013-10-10 | |||
| JP2016069873A | 2016-05-09 |
Foreign References:
| KR100890385B1 | 2009-03-25 |