Title:
WASHING SYSTEM FOR URINAL
Document Type and Number:
Japanese Patent JP3670436
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To detect the presence of urination by a pressure sensor, to causes operation of a washing system even when a status is low like a child, to prevent the occurrence of malfunction due to spreading of a hand like an infrared ray sensor, and to prevent the damage of a pressure sensor.
SOLUTION: A washing system for an urinal comprises a trap part 5 arranged at the bottom of an urinal body 1 and temporarily storing a given amount of liquid; a washing water piping 7 to feed washing water to the urinal body 1; and a flow rate regulating valve 8 arranged in the washing water piping 7. In this case, the washing system is provided with a pressure sensor 10 to detect the change of a liquid level in the trap part 5, and a control means to regulate the opening of the flow rate regulation valve 8 according to the change of a liquid level in the trap part 5 detected by the pressure sensor 10. The pressure sensor 10 is arranged at the side of the trap part 5 and a pressure introduction pipe 13a of the pressure sensor 10 is opened directly to the trap part 5.
Inventors:
Keiichi Fujiwara
Hirofumi Arai
Hiroshi Ito
Hirofumi Arai
Hiroshi Ito
Application Number:
JP7665497A
Publication Date:
July 13, 2005
Filing Date:
March 13, 1997
Export Citation:
Assignee:
OMRON Corporation
Totou Equipment Co., Ltd.
Totou Equipment Co., Ltd.
International Classes:
E03D3/12; E03D5/10; E03D13/00; (IPC1-7): E03D5/10; E03D3/12; E03D13/00
Domestic Patent References:
| JP6049652Y2 | ||||
| JP61036614Y1 | ||||
| JP6043073U | ||||
| JP7068716B2 | ||||
| JP2814643B2 | ||||
| JP7189315A | ||||
| JP8013585A |
Attorney, Agent or Firm:
Teruo Aoki
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