Toto Ltd.

Katsuya Nagata

Kiyotake Ukigai

Minoru Sato

Yutaka Aihara

Shuhei Hayata

Minami Okamoto

Takahiro Ohashi

Masateru Miyazaki

Koji Takeda

Kei Watanabe

Nao Tanizaki

Hiroshi Nishijima

Yasufumi Uemura

Junki Hamada

Yuki Ko

A sanitary washing device includes a casing, a nozzle, and a nozzle drive unit. The nozzle drive unit advances and retracts the nozzle between a storage position and an advanced position. The nozzle drive unit includes a supporter, a gear, and a cable rack. The supporter includes a rail allowing the nozzle to slide. The gear applies a drive force to advance and retract the nozzle. The cable rack is connected with the nozzle and meshes with the gear. The cable rack includes a nozzle connection part connected with the nozzle. The gear and the cable rack mesh at a meshing part. The meshing part is positioned at a same position in a longitudinal direction as the nozzle connection part or further frontward than the nozzle connection part when the nozzle is at the storage position.

Sanitary washing device

The present invention is a spout apparatus (), including: a shower head main body (), and an oscillation inducing element () for discharging water while allowing it to oscillate reciprocally, wherein the oscillation inducing element includes: a water supply passageway (), a water collision portion () for generating vortexes of alternately mutually opposing circulations; a vortex street passageway () for guiding and growing vortexes formed by the water collision portion; a discharge passageway () for causing water guided by the vortex street passageway to be discharged; a bypass passageway () for allowing water to detour the water collision portion and flow into the vortex street passageway; and a flow volume ratio adjusting member (), capable of varying the flow volume ratio of water flowing into the vortex street passageway through the water collision portion to water flowing into the vortex street passageway through the bypass passageway.

Spout apparatus causing reciprocal oscillations

The present invention is a spout apparatus including: a spout forming member configured to form a spout; a flow-guiding member provided inside the spout forming member, configured to guide water on an upstream side of the spout; an exposed flow-guiding member provided inside the spout forming member and on a spout side of the flow-guiding member, and exposed on a spout side of the exposed flow-guiding member; and a water channel configured to supply the water to an upstream side of the flow-guiding member. The exposed flow-guiding member and/or the spout forming member are configured to spout water from an outer periphery as an annular stream, among the water spouted from the spout. According to the above spout apparatus, the flow-guiding member can be effectively protected, and high guiding characteristics can be achieved in particular at an outer periphery of the spout.

Spout apparatus

The present invention is a spout apparatus () for discharging water, including a spouting apparatus main body () and an oscillation inducing element () for discharging water with reciprocating motion; wherein the oscillation inducing element has: a water supply passageway (); a water colliding portion () for generating vortexes of mutually opposing circulations at the downstream side thereof by the collision of hot or cold water; a vortex street passageway () having a tapered part, placed on the downstream side of the water supply passageway, which narrows in flow path cross section toward the downstream side; a separating portion () for suppressing the Coanda effect acting on the flow of water along the wall surface of a vortex street passageway; and a flow-aligning passageway () having an essentially fixed flow path cross section which aligns the flow of hot or cold water which has passed through the separating portion.

To provide a spout apparatus which is easily maintainable by a user even when, in a fluid device utilizing Karman vortices, scale adheres to the Karman vortex generating portion. A spout apparatus for discharging hot or cold water while causing it to reciprocally oscillate, having a spout apparatus body and an oscillating element; whereby the oscillating element has a water supply passage, a vortex generating passage, and a spout port passage; the spout port passage is formed of an elastically deformable soft member and is attached to the spout apparatus body so that a user can manipulate the spout port passage to deform it; and the vortex generating passage is formed of an elastically deformable soft member, and is integrally formed with the spout port passage so that deformations of the spout port passage can be transmitted to this vortex generating passage.

To provide a spout apparatus whereby expansion and deformation of the inner wall surface of the vortex generating portion such that a desired Karman vortex cannot be generated are prevented, even when the port portion is formed of an elastically deformable soft member. A spout apparatus for discharging hot or cold water with reciprocal motion, having a spout apparatus body and a vortex generating passage; whereby the oscillating element has a supply passage, a vortex generating passage, and a spout port passage, and the spout port passage is formed by an elastically deformable soft member, and is attached to the spout apparatus body so that a user can manipulate and deform the spout port passage, and the vortex generating passage is formed so as not to expand and deform even if internal pressure rises due to the supply of hot or cold water from the supply passage.

Spouting apparatus

In this shower apparatus, a part of an internal space thereof closer to the outer circumference thereof than an aeration unit is defined as a plurality of small spaces, and all of the small spaces have a uniform channel resistance, and all of the small spaces have a uniform ratio between a channel cross-sectional area at an inlet portion of each of the small spaces and a total opening area of nozzle holes that communicate the small space with an external space such that backflow water CF that returns from the respective small spaces consistently has a uniform flow rate at any point in time among the streams of the backflow water CF.

Shower apparatus

In this shower apparatus, a part of an internal space thereof closer to the outer circumference thereof than an aeration unit is defined as a plurality of small spaces, and all of the small spaces have a uniform channel resistance.

Provided is a shower apparatus which can stably supply bubbly water through all nozzle holes and can cause water droplets of large, uniform size to land continuously on the user so as to allow the user to enjoy a shower with a voluminous feel as if the user were being showered by large drops of rain. The shower apparatus includes a water supply unit, a throttle unit adapted to eject passing water downstream, an aeration unit adapted to produce bubbly water by aerating the water ejected through the throttle unit, and a nozzle unit provided with a plurality of nozzle holes used to discharge the bubbly water, wherein the throttle unit has a flat-shaped throttle channel and water ejected through the throttle channel plunges into an air-liquid interface as a sheet-like stream, thereby producing bubbly water, which is then discharged through the nozzle hole.

A shower apparatus Fincludes a water supply unit; a throttle unitinstalled downstream of the water supply unitand adapted to eject passing water downstream; an aeration unitprovided with an openingadapted to produce bubbly water by aerating the water ejected through the throttle unit; and a nozzle unitprovided with a plurality of nozzle holesadapted to discharge the bubbly water, wherein a virtual water ejection straight line obtained by extending an ejection direction of the water ejected through the throttle unitreaches a location where the nozzle holesare formed, without interfering with inner walls of the aeration unitand the nozzle unit

Provided is a shower apparatus which can stably produce and supply bubbly water to nozzle holes, causing finely divided water droplets of relatively large, uniform size to land continuously on a user so as to allow the user to enjoy a shower with a voluminous feel as if the user were being showered by large drops of rain. The shower apparatus includes a water supply unit, a throttle unit adapted to eject passing water downstream, an aeration unit adapted to produce bubbly water by aerating the water ejected through the throttle unit, and a nozzle unit provided with a plurality of nozzle holes used to discharge the bubbly water, wherein an ejection speed changing means is installed in the water supply unit to at least partially vary ejection speeds of the water ejected from respective throttle channels of the plurality of throttle channels of the throttle unit.

The present invention provides a shower apparatus which allows a user to enjoy spray of water with a voluminous feel even when a small volume of water is discharged as well as with a comfortable stimulus sensation of an instantaneous flow rate of the spray varying greatly. The shower apparatus periodically varies a volume of air taken into an aeration unit by periodically changing a traveling direction of a water stream ejected to the aeration unit from a throttle unit and produces pulsating spray by varying the instantaneous flow rate of bubbly water discharged from a nozzle unit.

Water discharge apparatus

The present invention provides a shower apparatus that allows the user to have a shower stream with a voluminous feel, even when a small volume of water is discharged, and also with a stimulus sensation arising from water being discharged in a pulsating manner. A shower apparatus Fperiodically changes the volume of air taken into an aeration unitby oscillating a main water stream ejected toward the aeration unitfrom a throttle unitin a direction crossing the direction of the ejection, so that the bubbly water discharged from a water discharge unitcreates a pulsating shower stream.

Growing community of inventors

Kitakyushu, Japan

Katsuya Nagata