Flush toilet apparatus

Patent metadata

Field	Value
Publication number	US-9328495-B2
Application number	US-201414228059-A
Country	US
Kind code	B2
Filing date	Mar 27, 2014
Priority date	Mar 27, 2013
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

A flush toilet apparatus includes a tank and a jet pump unit. A throat pipe of the jet pump unit includes a linear portion formed to linearly extend obliquely upward from a suction port that is an inlet of water. The suction port is formed so that the entire edge is along a horizontal surface.

First claim

What is claimed is:

1. A flush toilet apparatus that discharges waste to a drain pipe by wash water, the flush toilet apparatus comprising:
a toilet body comprising a bowl portion that receives waste, wherein a water conduit for guiding water supplied as wash water to the bowl portion is formed inside;
a tank storing water inside and arranged to be able to supply the water to an inlet of the water conduit,
the tank comprising:
a first tank portion; and
a second tank portion formed so as to extend part of a bottom wall of the first tank portion downward, wherein
a bottom wall of the second tank portion is located at a lower level than the bottom wall of the first tank portion; and
a jet pump unit arranged inside of the tank,
the jet pump unit comprising:
a throat pipe, wherein one end is connected to the inlet of the water conduit, a suction port is formed on the other end, and the throat pipe is arranged so that the suction port is positioned on a lower part of the inside of the tank; and
a nozzle that injects high-speed water toward the inside of the throat pipe from the suction port to induce a jet pump action, wherein
the throat pipe comprises a linear portion formed to linearly extend obliquely upward from the suction port, and
the suction port is formed so that an entire edge is along a horizontal surface and the suction port is arranged at a position overlapping with the second tank portion when viewed from the top.

2. The flush toilet apparatus according to claim 1 , wherein
when a water level of the water stored inside of the tank drops to be equal to or lower than a predetermined water level, supply of water injected from the nozzle to the suction port is stopped, and
the predetermined water level is set to a position higher than an upper end of the second tank portion.

3. The flush toilet apparatus according to claim 1 , wherein
the suction port is arranged at a position lower than the upper end of the second tank portion.

Assignees

• Toto Ltd

Inventors

• Kitaura Hidekazu
• Ishimaru Ryoko
• Iwabata Tomohiro
• Ota Yoshiki
• Yoshioka Takashi

Classifications

• E03D1/085 Primary

  by injection of air or water in the short leg of the siphon · CPC title