Tank device

Patent metadata

Field	Value
Publication number	US-11718981-B2
Application number	US-202117476193-A
Country	US
Kind code	B2
Filing date	Sep 15, 2021
Priority date	Sep 18, 2020
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

Provided is a tank device capable of restraining splashing of flush water during water supply to suppress a water slapping sound. A tank device for supplying flush water stored therein to a flush toilet comprises: a tank main unit for storing flush water in an internal space 24C thereof defined by an inner wall surface which comprises a transverse surface 27B extending in a transverse direction and a standing surface 27A extending in an up-down direction; and a water supply member 26 for supplying flush water from a water supply port 26A to the internal space of the tank main unit, the water supply member 26 being configured to spout flush water toward the inner wall surface defining the internal space 24C, wherein the tank main unit comprises a flow rectifying portion 46 provided in a region of the inner wall surface to which flush water is spouted, the flow rectifying portion 46 having a convex part 46A and a concave part 46B each formed on the inner wall surface.

First claim

The invention claimed is:

1. A tank device for supplying flush water stored therein to a flush toilet, comprising:
a tank main unit for storing flush water in an internal space thereof defined by an inner wall surface which comprises a transverse surface extending in a transverse direction and a standing surface extending in an up-down direction; and
a water supply member for supplying flush water, which is used for cleaning the flush toilet, from a water supply port to the internal space of the tank main unit,
wherein the water supply member is configured to spout flush water toward the inner wall surface defining the internal space,
wherein the tank main unit comprises a flow rectifying portion provided in a region of the inner wall surface to which flush water is spouted, the flow rectifying portion having a concave part and/or a convex part each formed on the inner wall surface, and
wherein the water supply member is configured to spout the flush water toward the standing surface, and the flow rectifying portion is formed on the standing surface.

2. The tank device according to claim 1 , wherein the concave part and/or the convex part extend toward a downstream side of a flow of the flush water.

3. The tank device according to claim 1 , wherein at least the region of the inner wall surface provided with the flow rectifying portion is formed to protrude outwardly.

4. The tank device according to claim 1 , wherein the inner wall surface of the tank main unit located on a downstream side of a flow of the flush water with respect to the flow rectifying portion is linearly formed in sectional view.

5. The tank device according to claim 1 , wherein the inner wall surface includes an inclined surface located on an upstream side of a flow of the flush water with respect to the flow rectifying portion, the inclined surface inclining from an inward side toward an outward side in sectional view.

6. The tank device according to claim 1 , wherein the tank main unit comprises: a connection tank in which the water supply port is disposed; and a water storage tank for storing therein the supplied flush water, and wherein the flow rectifying portion is formed on an inner wall surface of the connection tank.

7. A tank device for supplying flush water stored therein to a flush toilet, comprising:
a tank main unit for storing flush water in an internal space thereof defined by an inner wall surface which comprises a transverse surface extending in a transverse direction and a standing surface extending in an up-down direction; and
a water supply member for supplying flush water from a water supply port to the internal space of the tank main unit,
wherein the water supply member is configured to spout flush water toward the inner wall surface defining the internal space,
wherein the tank main unit comprises a flow rectifying portion provided in a region of the inner wall surface to which flush water is spouted, the flow rectifying portion having a concave part and/or a convex part each formed on the inner wall surface, and
wherein the water supply member is configured to spout the flush water toward the standing surface, and the flow rectifying portion is formed on the standing surface.

8. A tank device for supplying flush water stored therein to a flush toilet, comprising:
a tank main unit for storing flush water in an internal space thereof defined by an inner wall surface which comprises a transverse surface extending in a transverse direction and a standing surface extending in an up-down direction; and
a water supply member for supplying flush water from a water supply port to the internal space of the tank main unit,
wherein the water supply member is configured to spout flush water toward the inner wall surface defining the internal space,
wherein the tank main unit comprises a flow rectifying portion provided in a region of the inner wall surface to which flush water is spouted, the flow rectifying portion having a concave part and/or a convex part each formed on the inner wall surface, and
wherein the inner wall surface includes an inclined surface located on an upstream side of a flow of the flush water with respect to the flow rectifying portion, the inclined surface inclining from an inward side toward an outward side in sectional view.

9. A tank device for supplying flush water stored therein to a flush toilet, comprising:
a tank main unit for storing flush water in an internal space thereof defined by an inner wall surface which comprises a transverse surface extending in a transverse direction and a standing surface extending in an up-down direction; and
a water supply member for supplying flush water from a water supply port to the internal space of the tank main unit,
wherein the water supply member is configured to spout flush water toward the inner wall surface defining the internal space,
wherein the tank main unit comprises a flow rectifying portion provided in a region of the inner wall surface to which flush water is spouted, the flow rectifying portion having a concave part and/or a convex part each formed on the inner wall surface, and
wherein the tank main unit comprises: a connection tank in which the water supply port is disposed; and a water storage tank for storing therein the supplied flush water, and wherein the flow rectifying portion is formed on an inner wall surface of the connection tank.

Assignees

• Toto Ltd

Inventors

• Tone Yusuke
• Kashirajima Shu
• Shinohara yuuki
• Shibuya Koji

Classifications

• E03D1/012 Primary

  Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators {(mounting frames with incorporated cisterns E03D11/146)} · CPC title

• E03D1/26

  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

• E03D2201/20

  Noise reduction features · CPC title

• E03D1/28 Primary

  Bowl integral with the flushing cistern · CPC title

• E03D1/38

  Adaptations or arrangements of flushing pipes (noise-absorbing means in pipe systems F16L55/00 {; noise-reducing means in the flushing mechanism not in combination with flushing valves E03D11/00; provisions in the flushing pipe for evacuating leakage water from the cistern}) · CPC title