Toilet stool usable in sitting posture

• US 6,745,417 B2
• Filed: 09/27/2002
• Issued: 06/08/2004
• Est. Priority Date: 10/22/2001
• Status: Active Grant

• Current Assignee: Hideo Sumino
• Original Assignee: Hideo Sumino
• Inventors: Sumino, Hideo
• Primary Examiner(s): Bennett, Henry
• Assistant Examiner(s): KOKABI, AZADEH
• Application Number:
  US10/255,681
• Publication Number:
  US 20030074731A1
• Time in Patent Office: 620 Days
• Field of Search: 466/2, 423/3, 422/9, 422/3, 422/2, 466/7, 423/7, 297/DIG.10
• US Class Current: 4/662
• CPC Class Codes: A47K 13/10 Devices for raising and lowering, e.g. tilting or lifting mechanismsthereby controlling flushing valves E03D5/04; Collapsible or rotating seats or covers
• CPC Class Codes: A47K 13/302 Seats with cleaning devices apparatus for cleaning toilet bowls or whole toilets E03D9/002

Abstract

A toilet stool capable of using comfortably without cleaning is provided. The toilet stool comprises a main body 10, a seat 11, a cover 12, injection means 41 and 42, and a control means. The main body 10 can preserve stool temporarily therein. The seat 11 is formed on the main body 10. The cover 12 performs opening and closing operations by rotating about a horizontal axis with respect to the main body 10. The injection means 41 and 42 perform a cleaning operation by injecting pressure liquid for cleaning. The control means causes the injection means 41 and 42 to perform the cleaning operation on the condition that the cover is closed.

Claims

1. A toilet stool usable in a sitting posture, comprising:

a main body capable of reserving stool temporarily;

a seat provided on said main body;

a cover that performs opening and closing operations by rotating about a horizontal axis with respect to said main body;

injection means for performing a cleaning operation by injecting pressure liquid for cleaning; and

control means that causes said injection means to perform said cleaning operation on the condition that said cover is closed,

wherein said injection means are provided on an inner surface of said cover, said injection means comprising;

a first nozzle injecting said liquid into an inner surface of said main body; and

a second nozzle injecting said liquid to a top surface of said seat,

wherein said control means controls injection of said liquid by said first nozzle and second nozzle so that injection of said liquid by said first nozzle completes after injection of said liquid by said second nozzle has completed.

2. A toilet stool usable in a sitting posture, comprising:

a main body capable of reserving stool temporarily;

a seat provided on said main body;

a cover that performs opening and closing operations by rotating about a horizontal axis with respect to said main body;

injection means for performing a cleaning operation by injecting pressure liquid for cleaning; and

control means that causes said injection means to perform said cleaning operation on the condition that said cover is closed,

wherein said injection means are provided on an inner surface of said cover, said injection means comprising;

a first nozzle injecting said liquid into an inner surface of said main body; and

a second nozzle injecting said liquid to a top surface of said seat,

wherein said second nozzle is connected to a decompression valve, said decompression valve decreasing liquid pressure so that liquid discharge pressure of said second nozzle id kept smaller than that of said first nozzle.

3. A toilet stool usable in a sitting posture, comprising:

a main body capable of reserving stool temporarily;

a seat provided on said main body;

a cover that performs opening and closing operations by rotating about a horizontal axis with respect to said main body;

injection means for performing a cleaning operation by injecting pressure liquid for cleaning; and

control means that causes said injection means to perform said cleaning operation on the condition that said cover is closed,

wherein said injection means are provided on an inner surface of said cover, said injection means comprising;

a first nozzle injecting said liquid into an inner surface of said main body; and

a second nozzle injecting said liquid to a top surface of said seat,

wherein said second nozzle is connected to a decompression valve, said decompression valve decreasing liquid pressure so that liquid discharge pressure of said second nozzle is kept smaller than that of said first nozzle,

wherein said decompression valve can adjust liquid pressure and said control means controls said decompression valve so that liquid pressure reduce by said decompression valve is decreased gradually during said injection.

4. A toilet stool usable in a sitting posture, comprising:

a main body capable of reserving stool temporarily;

a seat provided on said main body;

a cover that performs opening and closing operations by rotating about a horizontal axis with respect to said main body;

injection means for performing a cleaning operation by injecting pressure liquid for cleaning; and

control means that causes said injection means to perform said cleaning operation on the condition that said cover is closed,

wherein said injection means are provided on an inner surface of said cover, said injection means comprising;

a first nozzle injecting said liquid into an inner surface of said main body; and

plural second nozzle being formed to be rotatable about substantially vertical axes that are apart from one another in the horizontal direction and rotating due to liquid pressure,

wherein said plural second nozzles are provided on an inner surface of said cover and set to inject the liquid at least in the horizontal direction,

whereby said plural second nozzle inject said liquid to a top surface of said seat and clean one another.

5. A toilet stool usable in a sitting posture, comprising:

a main body capable of reserving stool temporarily;

a seat provided on said main body;

a cover that performs opening and closing operations by rotating about a horizontal axis with respect to said main body;

injection means for performing a cleaning operation by injecting pressure liquid for cleaning;

control means that causes said injection means to perform said cleaning operation on the condition that said cover is closed,

elevating means for elevating or lowering said seat;

detection means for detecting load information to determine whether a user has sat down on said seat or not;

first determination means for determining that said user has sat down in the case where output from said detection means falls within a first prescribed range; and

second determination means for determining condition of said user is stable in the case where output from said detection means falls within a second prescribed range,

wherein said control means controls said elevating means so as to start lowering said seat when it is determined that said user has sat down as a result of a determination by said first determination means, and then

said control means controls said elevating means so as to go on lowering said seat when it is determined that sitting condition of said user is stable as a result of a determination by said second determination means, and so as to decrease a speed of lowering said seat or stops lowering said seat when it is determined that sitting condition of said user is unstable as a result of determination by said second determination means.