URINAL WITH SANITATION DEVICE

• US 20140250577A1
• Filed: 03/05/2014
• Published: 09/11/2014
• Est. Priority Date: 03/06/2013
• Status: Active Grant

• Current Assignee: Toto Limited
• Original Assignee: Toto Limited
• Inventors: NAKAMURA, Yusuke, ARAKI, Yusuke, TOYODA, Koichi, ITAMI, Aiko, YAMAMOTO, Masahiro, TAKESHITA, Akemi, KAMESHIGE, Hiroyuki
• Granted Patent: US 9,267,277 B2
• Time in Patent Office: Days
• US Class Current: 4/309
• CPC Class Codes: E03D 13/00 Urinals without flushing devices A47K11/00 ; Means for connecting the urinal to the flushing pipe and the wastepipe; Splashing shields for urinals
• CPC Class Codes: E03D 13/005 Accessories specially adapted for urinals
• CPC Class Codes: E03D 5/105 touchless, e.g. using sensors
• CPC Class Codes: E03D 9/02 Devices adding a disinfecting, deodorising, or cleaning agent to the water while flushing apparatus for disinfection A61L2/00; treatment of water in general C02F
• CPC Class Codes: E03D 9/032 Devices connected to or dispensing into the bowl

Abstract

A urinal with a sanitation device capable of preventing the generation of a smell and urine scale with reliability without reducing a water conservation effect. In the urinal US, a liquid agent is ejected in different modes by predetermined timing according to areas on the urinal US.

Claims

1. A urinal with a sanitation device in which the whole of a trap unit having a water seal formed by urine or a component part constituting the trap unit is interchangeable, and in which a sanitary condition is maintained by using a chemical agent, the urinal comprising:

a bowl portion including a standing wall portion facing a user and a bottom surface portion that guides urine received by the standing wall portion to a drain hole;

a trap unit that retains urine flowing in from the drain hole to form a water seal, and that communicates with a drain tube;

a liquid agent ejection unit for ejecting to the urinal a liquid agent containing a chemical agent capable of inhibiting generation of an ammonia smell and urine scale from urine, or a liquid agent in which the chemical agent disposed in the urinal is dissolved; and

a control unit for controlling the liquid agent ejection unit,

wherein the control unit controls the liquid agent ejection unit so that the liquid agent is ejected in different forms by predetermined timing according to areas on the urinal.

2. The urinal with a sanitation device according to claim 1, wherein the control unit causes the liquid agent to be ejected in different forms to the bowl portion and the trap unit by predetermined timing.

3. The urinal with a sanitation device according to claim 2, wherein the control unit causes ejection of the liquid agent so that the spread of the ejected liquid agent is smaller when the liquid agent is ejected to the trap unit than when the liquid agent is ejected to the standing wall portion in the bowl portion.

4. The urinal with a sanitation device according to claim 3, wherein the control unit causes ejection of the liquid agent in such a manner that the amount of the liquid agent attached to the standing wall portion in the bowl portion is larger when the liquid agent is ejected to the standing wall portion than when the liquid agent is ejected to the trap unit.

5. The urinal with a sanitation device according to claim 4, wherein the control unit causes ejection of the liquid agent in such a manner that the particle size of the ejected liquid agent is smaller when the liquid agent is ejected to the standing wall portion in the bowl portion than when the liquid agent is ejected to the trap unit.

6. The urinal with a sanitation device according to claim 5, wherein the control unit causes ejection of the liquid agent to the trap unit so that that the liquid agent is ejected toward the chemical agent disposed in or above the trap unit.

7. The urinal with a sanitation device according to claim 1, wherein the chemical liquid ejection unit ejects a liquid agent containing the chemical agent to the urinal, and

wherein the control unit causes ejection of the liquid agent so that the liquid agent is ejected in different forms by predetermined timing according to areas in the bowl portion.

8. The urinal with a sanitation device according to claim 7, wherein the control unit causes ejection of the liquid agent in such a manner that the amount of the liquid agent attached to width-direction-opposite-side portions in the standing wall portion in the bowl portion is larger than the amount of the liquid agent attached to a width-direction-center portion in the standing wall portion.

9. The urinal with a sanitation device according to claim 8, wherein the control unit causes ejection of the liquid agent in such a manner that at least one of the ejection form and the ejection frequency is changed between the width-direction-center portion and the width-direction-opposite-side portions in the standing wall portion in the bowl portion, and the amount of the liquid agent attached to the width-direction-opposite-side portions is larger than the amount of the liquid agent attached to the width-direction-center portion.

10. The urinal with a sanitation device according to claim 9, wherein the control unit causes ejection of the liquid agent in such a manner that the frequency with which the liquid agent is ejected to the width-direction-opposite-side portions in the standing wall portion in the bowl portion is higher than the frequency with which the liquid agent is ejected to the width-direction-center portion.

11. The urinal with a sanitation device according to claim 9, wherein the control unit causes ejection of the liquid agent in such a manner that the flow velocity of the liquid agent at the width-direction-opposite-side portions in the standing wall portion in the bowl portion is higher than the flow velocity of the liquid agent at the width-direction-center portion.

12. The urinal with a sanitation device according to claim 9, wherein the control unit causes ejection of the liquid agent in such a manner that the particle size of the liquid agent ejected to the width-direction-opposite-side portions in the standing wall portion in the bowl portion is smaller than the particle size of the liquid agent ejected to the width-direction-center portion.