Flush toilet apparatus

Patent metadata

Field	Value
Publication number	US-9476193-B2
Application number	US-201414228072-A
Country	US
Kind code	B2
Filing date	Mar 27, 2014
Priority date	Mar 27, 2013
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

This flush toilet apparatus includes a traveling-direction switching mechanism switching a mode between a toilet washing mode and a tank storage mode. This traveling-direction switching mechanism includes: a shield portion directing jet water to an outside of a throat pipe at a time of the tank storage mode; a moving mechanism moving the shield portion from a position at a time of the toilet washing mode in a first direction to a position at the time of the tank storage mode; and a guide surface switching a traveling direction of the jet water so that after the traveling direction is switched, a flow rate of the jet water is higher in a second direction opposite to the first direction than in the first direction.

First claim

What is claimed is:

1. A flush toilet apparatus for discharging waste to a drain pipe by wash water, comprising:
a toilet body including a bowl portion that receives the waste; and a water conduit for introducing water supplied as the wash water to the bowl portion;
a tank storing therein water, and provided to allow supply of the water to the water conduit; and
a jet pump unit arranged in a state in which at least a part of the jet pump unit is submerged inside of the tank, wherein
the jet pump unit includes:
a throat pipe having a suction port formed in one end portion of the throat pipe, and arranged in such a manner that the water flowing into the throat pipe from the suction port is supplied to the water conduit;
a nozzle triggering a jet pump action by injecting jet water at a high flow velocity toward inside of the throat pipe from the suction port; and
a traveling-direction switching mechanism switching a mode between a toilet washing mode for supplying the jet water to the water conduit and a tank storage mode for supplying the jet water into the tank by switching a traveling direction of the jet water from the inside of the throat pipe to an outside of the throat pipe,
the traveling-direction switching mechanism includes:
a shield portion switching the traveling direction of the jet water to the outside of the throat pipe by shielding the traveling jet water at a time of the tank storage mode; and
a moving mechanism moving the shield portion from a position at a time of the toilet washing mode in a first direction to a position at the time of the tank storage mode, and
the shield portion includes a guide surface switching the traveling direction of the jet water so that after the traveling direction is switched during the process of switching from the toilet washing mode to the tank storage mode, a flow rate of the jet water is higher in a second direction opposite to the first direction than in the first direction, and
the guide surface has: a strike portion against which the jet water injected from the nozzle strikes; a block portion blocking the side of the strike portion in the first direction; and an opening portion opening the side of the strike portion in the second direction; in order that the jet water is suppressed to travel in the first direction and the jet water travel in the second direction during and after the process of the traveling-direction switching.

2. The flush toilet apparatus according to claim 1 , wherein the guide surface is provided in an end portion in the first direction side of the shield portion so that after the traveling direction is switched, almost all the jet water travels in the second direction.

3. The flush toilet apparatus according to claim 1 , wherein the guide surface is formed to have a concave cross-section so as to suppress diffusion of the jet water after the traveling direction is switched.

4. The flush toilet apparatus according to claim 1 , wherein the guide surface extends to have a curve shape so as to suppress deceleration of the jet water resulting from switching of the traveling direction of the jet water.

5. The flush toilet apparatus according to claim 1 , wherein the guide surface is configured to switch the traveling direction of the jet water to the outside of the throat pipe without disturbing a flow of the jet water injected from the nozzle at a time of supplying the water into the tank by switching the traveling direction.

6. The flush toilet apparatus according to claim 5 , wherein the guide surface is configured to direct the jet water downward in the tank, the traveling direction of the jet water being switched.

7. The flush toilet apparatus according to claim 6 , wherein the traveling-direction switching mechanism includes an air-contact suppression portion suppressing the jet water from contacting the air present inside of the throat pipe at the time of supplying the water into the tank.

8. The flush toilet apparatus according to claim 7 , wherein the tank includes a water-surface-falling suppression portion suppressing a water surface in the tank from falling by the jet water at the time of supplying the water into the tank.

9. The flush toilet apparatus according to claim 8 , wherein the water-surface-falling suppression portion includes a tank-water-contact suppression portion suppressing the jet water from contacting the water present above the jet water inside of the tank at the time of supplying the water into the tank.

10. The flush toilet apparatus according to claim 8 , wherein the water-surface-falling suppression portion includes an underwater mixing portion mixing the jet water underwater at the time of supplying the water into the tank.

11. A flush toilet apparatus for discharging waste to a drain pipe by wash water, comprising:
a toilet body including a bowl portion that receives the waste; and a water conduit for introducing water supplied as the wash water to the bowl portion;
a tank storing therein water, and provided to allow supply of the water to the water conduit; and
a jet pump unit arranged in a state in which at least a part of the jet pump unit is submerged inside of the tank, wherein
the jet pump unit includes:
a throat pipe having a suction port formed in one end portion of the throat pipe, and arranged in such a manner that the water flowing into the throat pipe from the suction port is supplied to the water conduit;
a nozzle triggering a jet pump action by injecting jet water at a high flow velocity toward inside of the throat pipe from the suction port; and
a traveling-direction switching mechanism switching a mode between a toilet washing mode for supplying the jet water to the water conduit and a tank storage mode for supplying the jet water into the tank by switching a traveling direction of the jet water from the inside of the throat pipe to an outside of the throat pipe,
the traveling-direction switching mechanism includes:
a shield portion switching the traveling direction of the jet water to the outside of the throat pipe by shielding the traveling jet water at a time of the tank storage mode; and
a moving mechanism moving the shield portion from a position at a time of the toilet washing mode in a first direction to a position at the time of the tank storage mode, and
the shield portion includes a guide surface switching the traveling direction of the jet water so that after the traveling direction is switched during the process of switching from the toilet washing mode to the tank storage mode, a flow rate of the jet water is higher in a second direction opposite to the first direction than in the first direction, and
the guide surface is generally L-shaped in order that the jet water is suppressed to travel in the first direction and the jet water travel in the second direction during and after the process of the traveling-direction switching.

12. The flush toilet apparatus according to claim 11 , wherein the guide surface extends to have a curved shape.

13. A flush toilet apparatus for discharging waste to a drain pipe by wash water, comprising:
a toilet body including a bowl portion that receives the waste; and a water conduit for introducing water supplied as the wash water to the bowl portion;
a tank storing therein water, and provided to allow supply of the water to the water conduit; and
a jet pump unit arranged in a state in which at least a part of the jet pump unit is submerged inside of the tank, wherein
the jet pump unit includes:
a throat pipe having a suction port formed in one end portion of the throat pipe, and arranged in such a manner that the water flowing into the throat pipe from the suction por

Assignees

• Toto Ltd

Inventors

• Kitaura Hidekazu
• Ishimaru Ryoko
• Iwabata Tomohiro

Classifications

• E03D11/08

  Bowls with means producing a flushing water swirl · CPC title

• E03D5/01 Primary

  using flushing pumps · CPC title

• E03D2201/40

  Devices for distribution of flush water inside the bowl · CPC title