Abstract: A foot water-spouting device includes a foot-front water spouting section for spouting water toward the front side of a user's foot and a water-spouting section direction moving mechanism for reciprocating the destination of water spouting of the foot-front water spouting section along a longitudinal direction of the foot. A plurality of spouts may be arranged side-by-side in the foot instep width direction for each of the right and left feet. The pressure of water spouting at a water arrival point may be changed based on or the water spouting amount may be changed based on movement of the water arrival point.

Abstract: A water discharger according to the invention comprises a housing having a columnar space inside, a core having a core inner channel inside allowed to move in the space while dividing the columnar space into a first and a second pressure chamber, a water discharge tubular body having a water discharge channel communicating with the core inner channel and reaching the outside of the housing, a first water inlet port for introducing fluid to the first pressure chamber, a second water inlet port for introducing fluid to the second pressure chamber, a first introducing port for introducing fluid from the first pressure chamber to the core inner channel, a second introducing port for introducing fluid from the second pressure chamber to the core inner channel, a valve body for changing the opening of the first and the second introducing port, and control means for inverting the size relation of the opening of the first and the second introducing port when the core reverses its moving direction.

Abstract: A leg water-spouting device of the present invention comprises a foot-front water spouting section for spouting water toward the foot-front side of a user and a water-spouting section direction moving mechanism for reciprocating the destination of water spouting of the foot-front water spouting section along the longitudinal direction of the foot and more preferably, it has a plurality of spouts arranged side by side in the foot instep width direction in use for each of the right and left feet or the pressure of water spouting received by the water arriving point is changed according to the position of movement of the moving water arriving point or the water spouting amount is changed according to the position of movement of the moving water arriving point. According to the above construction, such a leg water-spouting device can be provided that the sensory receptors existing on the skin are effectively stimulated and greater comfort can be obtained.

Abstract: A cleaning water jetting device 40 formed so as to rotate a nozzle by a fluid pressure and capable of reducing the size of the drive part of a pump for feeding fluid to a chamber and an operation cost, comprising an upper side through-hole 6A recessedly formed in edge shape provided in the ceiling of the chamber 2 and a bottomed concave part 43 formed in round hole shape provided in the bottom surface thereof, wherein the nozzle 4 is installed by inserting a reduced diameter part 7 on a nozzle tip side at the nozzle tip side into the upper side through-hole 6A and the bottom portion 44 into the concave part 43, and kept in such a state in the upper side through-hole 6A as to face a cleaning fluid jetting port 5 toward the outside of the through-hole, to be rotated, and to allow the position thereof to be changed in a nozzle axis O direction, and can be revolved around the center axis thereof in the tilted attitude relative to the center axis P of the upper side through-hole 6A.

Abstract: A novel water jetting device achieves a water jet of a wide range and an economization of water without using an electric drive device. A water jetting body 10 is so vortex chamber 4 with its water jetting spout 11 confronting the outside of the force receiving member 12 that a force receiving member 12 can oscillate in a position inclined in the vortex chamber 4. A vortex flow thus established in the vortex chamber 4 is caused to make a flow velocity difference around the force receiving member 12, and a force generated on the basis of the flow velocity difference is exerted upon the force receiving member 12 to oscillate the water jetting body 10 in the inclined position in the vortex chamber 4 thereby to jet the cleaning water in the vortex chamber 4 from the water jetting spout 11.

Abstract: A cleaning water jetting device 40 formed so as to rotate a nozzle by a fluid pressure and capable of reducing the size of the drive part of a pump for feeding fluid to a chamber and an operation cost, comprising an upper side through-hole 6A recessedly formed in edge shape provided in the ceiling of the chamber 2 and a bottomed concave part 43 formed in round hole shape provided in the bottom surface thereof, wherein the nozzle 4 is installed by inserting a reduced diameter part 7 on a nozzle tip side at the nozzle tip side into the upper side through-hole 6A and the bottom portion 44 into the concave part 43, and kept in such a state in the upper side through-hole 6A as to face a cleaning fluid jetting port 5 toward the outside of the through-hole, to be rotated, and to allow the position thereof to be changed in a nozzle axis O direction, and can be revolved around the center axis thereof in the tilted attitude relative to the center axis P of the upper side through-hole 6A.

Abstract: A novel water jetting device achieves a water jet of a wide range and an economization of water without using an electric drive device. A water jetting body 10 is so assembled in a vortex chamber 4 with its water jetting spout 11 confronting the outside of the force receiving member 12 that a force receiving member 12 can oscillate in a position inclined in the vortex chamber 4. A vortex flow thus established in the vortex chamber 4 is caused to make a flow velocity difference around the force receiving member 12, and a force generated on the basis of the flow velocity difference is exerted upon the force receiving member 12 to oscillate the water jetting body 10 in the inclined position in the vortex chamber 4 thereby to jet the cleaning water in the vortex chamber 4 from the water jetting spout 11.

Abstract: A multi-layer disk fan with blades operates quietly. The multi-layer disk fan with blades is formed by laminating a multiplicity of annular disks in a measured spaced relation, the arrangement having such a feature that a multiplicity of blades are interposed between the annular disks and the ends of the respective blades. The blades are further positioned a circumferentially measured spaced apart distance inward of the outer peripheral edges of the annular disks. Turbulent air flow caused by peeling-off at the tips of the blades through the effect of laminar flow by the disks is effectively prevented. Likewise, distortion in outlet speed at the outer peripheral edges of the annular disks is controlled, reducing noises from turbulent flow and interference and resulting in quiet operation.

Abstract: Rotatable circular plates are stacked apart to form thin air layers therebetween. Rotation of the circular plates moves air over an air treatment material: catalyst or adsorbent. In one embodiment, the air treatment material is affixed to the surface of the circular plates. In another embodiment, the circular plates are formed from the air treatment material. The increased velocity of air relative to the circular plates causes separation of laminar flow, promotes boundary-layer turbulence near the plate surfaces, and promotes propagating stall in the air layers. These phenomena enhance the contact between the flowing air and the air treatment material.