Flush toilet

Patent metadata

Field	Value
Publication number	US-11486122-B2
Application number	US-202017025776-A
Country	US
Kind code	B2
Filing date	Sep 18, 2020
Priority date	Sep 27, 2019
Publication date	Nov 1, 2022
Grant date	Nov 1, 2022

Abstract

A flush toilet includes a toilet main body, a tank device provided behind the toilet main body, and a private part washing device configured to wash a private part of a user, the private part washing device being provided on a rear upper surface of the toilet main body behind the bowl. The tank device includes a water supply part configured to supply flush water supplied from a water supply source, a storage tank for storing the flush water supplied from the water supply part, the storage tank being located behind the private part washing device and above a floor surface, a pump configured to feed the flush water in the storage tank to the toilet main body, and a controller configured to control operation of the water supply part and the pump, and the controller is disposed on an outer upper surface of the storage tank.

First claim

What is claimed is:

1. A flush toilet for flushing and discharging waste with flush water, the flush toilet comprising:
a toilet main body including a bowl configured to receive waste, a rim formed on a top edge of the bowl, and a discharge trap configured to discharge the waste in the bowl;
a tank device configured to supply flush water to the toilet main body, the tank device being provided behind the toilet main body; and
a private part washing device configured to wash a private part of a user, the private part washing device being provided on a rear upper surface, of the toilet main body, behind the bowl,
wherein the tank device includes a water supply part configured to supply flush water that is supplied from a water supply source, a storage tank configured to store the flush water supplied from the water supply part, the storage tank being located behind the private part washing device and above a floor surface, a pump configured to feed the flush water in the storage tank to the toilet main body, and a controller configured to control operation of the water supply part and the pump, and
the controller is disposed on an outer upper surface of the storage tank and the controller is disposed behind the pump.

2. The flush toilet according to claim 1 , wherein an upper surface of the controller is located at a position higher than an upper surface of the rim of the toilet main body.

3. The flush toilet according to claim 1 , further comprising a holding member configured to hold the private part washing device, the holding member being disposed behind the bowl and on the rear upper surface of the toilet main body, wherein
the holding member includes a front base above which a private part washing-side housing region for housing a functional unit of the private part washing device is formed, and a rear base below which a tank-side housing region for housing the storage tank is formed, the rear base being provided behind the front base, and
in the rear base, a part configured to surround a periphery of the controller protrudes on a side of the private part washing-side housing region higher than a base surface of the front base so that the controller is housed in the tank-side housing region.

4. The flush toilet according to claim 1 , wherein the discharge trap extends, in a plan view, in a front-back direction from an inlet connected to the bowl to an outlet behind the bowl, and
the storage tank is disposed in a manner surrounding an upper part of the discharge trap from both left and right sides and from behind.

5. The flush toilet according to claim 1 , wherein the storage tank has a left-right asymmetrical shape including a large tank section and a small tank section, the large tank section being a large-capacity side of the storage tank that is divided into two at a center in a left-right direction, the small tank section being a small-capacity side of the storage tank that is divided into two at the center in the left-right direction.

6. The flush toilet according to claim 5 , wherein the large tank section includes a rear large tank section disposed behind the discharge trap, a front large tank section that extends forward from the rear large tank section and that is disposed on one of left and right sides of the discharge trap, and a lower large tank section extending downward from the rear large tank section,
the small tank section includes a rear small tank section disposed behind the discharge trap, and a front small tank section that extends forward from the rear small tank section and that is disposed on another one of the left and right sides of the discharge trap,
a front end of the front large tank section is disposed more forward than a front end of the front small tank section,
a bottom surface of the lower large tank section is located at a position that is lower than a bottom surface of each of the rear small tank section and the front small tank section, and
the controller is provided on an outer upper surface of the rear large tank section and/or an outer upper surface of the rear small tank section.

7. The flush toilet according to claim 1 , wherein the controller is configured to control so as to drive the pump while water is being supplied from the water supply part to the storage tank.

Assignees

• Toto Ltd

Inventors

• Kawazu yukari
• Umeno Toshiro
• Kashirajima Shu

Classifications

• E03D5/01

  using flushing pumps · CPC title

• E03D1/26 Primary

  Bowl with flushing cistern mounted on the rearwardly extending end of the bowl (shape or material of the cistern E03D1/01; constructional features of the bowl E03D11/02 - E03D11/12) · CPC title

• E03D9/00 Primary

  Sanitary or other accessories for lavatories (hand tools for cleaning the toilet bowl A47K11/10; seats or covers for closets A47K13/00; body supports, other than seats for closets A47K17/02; devices for preventing contamination of drinking-water pipes E03C1/10 ){; Devices for cleaning or disinfecting the toilet room or the toilet bowl; Devices for eliminating smells (cleaning, disinfecting or deodorising the seat A47K13/30)} · CPC title

• E03D11/13

  Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls {, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing} · CPC title

• E03D9/08

  Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting} · CPC title