Water closet device

Patent metadata

Field	Value
Publication number	US-9670658-B2
Application number	US-201615040284-A
Country	US
Kind code	B2
Filing date	Feb 10, 2016
Priority date	Feb 13, 2015
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

A switching mechanism is configured to switch an advancing direction of water injected from a nozzle by moving between a first position and a second position. The switching mechanism is held at the second position by a force received from the water injected by the nozzle during the tank water feeding process. A refill mechanism has a refill pipe for causing the water injected from the nozzle during the tank water feeding process and whose advancing direction is switched by the switching mechanism to flow in through an inflow port on one end side. The refill pipe is configured to lead the water having flowed in through the inflow port to a toilet stool body without flowing through a suction port of a throat pipe.

First claim

What is claimed is:

1. A water closet device in which a toilet stool body is washed by washing water, comprising:
a toilet stool body having a bowl portion for receiving waste and a trap portion for accepting the waste discharged from the bowl portion and storing water as sealing water;
a tank for storing water inside;
a jet pump unit arranged in a state at least partially sunk inside the tank, the jet pump unit including:
a throat pipe having a suction port formed and arranged to supply water that flows in through the suction port as the washing water to the toilet stool body, and
a nozzle for injecting water toward the inside of the throat pipe through the suction port and inducing a jet pump action to thereby increase a flow rate of the water flowing through the throat pipe to more than the flow rate of the water injected by the nozzle;

a switching mechanism for switching an advancing direction of the water injected by the nozzle to thereby sequentially perform:
a washing process of increasing the flow rate of the water injected by the nozzle mainly by the jet pump unit and supplying the water as the washing water to the toilet stool body, and
a tank water feeding process of supplying and storing the water injected by the nozzle mainly inside the tank; and

a refill mechanism for supplying the sealing water to the toilet stool body during the tank water feeding process, wherein
the switching mechanism is configured to switch the advancing direction by moving between a first position corresponding to the washing process and a second position corresponding to the tank water feeding process, the switching mechanism being held at the second position by a force received from the water injected by the nozzle during the tank water feeding process;
the refill mechanism has a refill pipe for causing the water injected from the nozzle during the tank water feeding process, and that had its advancing direction switched by the switching mechanism to flow in through an inflow port on one end side; and
the refill pipe is configured to lead the water that flows in through the inflow port to the toilet stool body without flowing through the suction port of the throat pipe.

2. The water closet device according to claim 1 , wherein
the inflow port is positioned below a water level when the tank is full; and
at least a part of the refill pipe is positioned above the water level when the tank is full.

3. The water closet device according to claim 2 , wherein
the refill mechanism has a collecting portion formed having a tapered shape for collecting the water that had its advancing direction switched by the switching mechanism and directing the water to the inflow port of the refill pipe.

4. The water closet device according to claim 2 , wherein
the refill mechanism has a guide wall for leading the water that had its advancing direction switched by the switching mechanism to the inflow port of the refill pipe.

5. The water closet device according to claim 2 , wherein
the switching mechanism switches the advancing direction at the second position so that the water injected from the nozzle advances in one direction.

6. The water closet device according to claim 2 , wherein
the tank has an overflow port through which the overflow water flows if water is supplied when the tank is full; and
the tank is configured such that the water that flows into the refill pipe is supplied from the overflow port to the toilet stool body.

Assignees

• Toto Ltd

Inventors

• Ishimaru Ryoko
• Kitaura Hidekazu
• Maruyama Takahiro

Classifications

• E03D5/01 Primary

  using flushing pumps · CPC title

• E03D1/36

  Associated working of inlet and outlet valves · CPC title

• E03D2201/40

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