Sanitary washing device

Patent metadata

Field	Value
Publication number	US-11008746-B2
Application number	US-202016878717-A
Country	US
Kind code	B2
Filing date	May 20, 2020
Priority date	Jun 14, 2019
Publication date	May 18, 2021
Grant date	May 18, 2021

Abstract

A sanitary washing device is on a toilet including a bowl. The sanitary washing device includes a casing, a nozzle, a shielding plate, and a controller. The nozzle washes a human body private part. The nozzle is advanceable and retractable between a storage position and an advanced position. The shielding plate is rotatable with respect to the casing and positioned frontward of the nozzle when the nozzle is at the storage position. The controller controls an operation of the nozzle. The nozzle has a first spout hole squirting water. The shielding plate is at a first position when the nozzle is at the advanced position. The controller performs a frontward washing operation of squirting water after using the sanitary washing device. A part of the shielding plate is positioned frontward of a front end part of the nozzle in the frontward washing operation.

First claim

What is claimed is:

1. A sanitary washing device provided on a toilet including a bowl, the sanitary washing device comprising:
a casing;
a nozzle washing a human body private part, the nozzle being advanceable and retractable between a storage position and an advanced position, the nozzle being stored in the casing at the storage position, the nozzle being advanced from the casing at the advanced position;
a shielding plate provided rotatably with respect to the casing, the shielding plate being positioned frontward of the nozzle when the nozzle is at the storage position; and
a controller controlling an operation of the nozzle,
the nozzle having a first spout hole squirting water frontward and downward,
the shielding plate being at an initial position when the nozzle is at the storage position, and being at a first position rotated a first angle from the initial position when the nozzle is at the advanced position,
after a use of the sanitary washing device, the controller performing at least a frontward washing operation of squirting water from the first spout hole in a state in which the shielding plate is at a second position rotated a second angle from the initial position, the second angle being less than the first angle,
at least a part of the shielding plate being positioned frontward of a front end part of the nozzle in the frontward washing operation.

2. The sanitary washing device according to claim 1 , wherein
the shielding plate is rotatable by advancing and retracting the nozzle, and
the controller performs at least the frontward washing operation in the state in which the shielding plate is rotated from the initial position to the second position by advancing the nozzle from the storage position to a prescribed position between the storage position and the advanced position.

3. The sanitary washing device according to claim 1 , wherein the second angle is less than an advance angle of the nozzle with respect to a vertical plane.

4. The sanitary washing device according to claim 1 , wherein a lower end of the shielding plate when the shielding plate is at the second position is positioned lower than a center of the first spout hole or at a same height as the center of the first spout hole.

5. The sanitary washing device according to claim 1 , wherein a squirt region of the first spout hole overlaps the shielding plate when the shielding plate is at the initial position, and does not overlap the shielding plate when the shielding plate is at the second position.

6. The sanitary washing device according to claim 1 , further comprising:
a toilet seat; and
a seating detection sensor detecting a seated state of a user on the toilet seat,
the controller performing at least the frontward washing operation when the seating detection sensor changes from a state of the seated state being detected to a state of the seated state not being detected.

7. The sanitary washing device according to claim 1 , wherein the nozzle further has a second spout hole squirting water backward of the first spout hole.

8. The sanitary washing device according to claim 7 , wherein the controller performs at least a backward washing operation of squirting water from the second spout hole while rotating the shielding plate from the initial position to the second position.

9. The sanitary washing device according to claim 7 , wherein
the first spout hole and the second spout hole are positioned in the front end part of the nozzle, and
the second spout hole is positioned sideward of the first spout hole.

Assignees

• Toto Ltd

Inventors

• Ko Yuki
• Mochita Masayuki
• Koto Yoshihiro

Classifications

• E03D9/08 Primary

  Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting} · CPC title

• B05B12/32

  Shielding elements, i.e. elements preventing overspray from reaching areas other than the object to be sprayed (nozzles with integral shielding elements B05B1/28) · CPC title

• B05B1/28

  with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material · CPC title

• B05B15/16

  for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards · CPC title

• B05B15/70

  Arrangements for moving spray heads automatically to or from the working position · CPC title