| 摘要 |
PROBLEM TO BE SOLVED: To provide a jet bathing apparatus capable of providing whirling jet streams by a simple structure. SOLUTION: The jet bathing apparatus includes a bathtub; an intake opened on a bathtub wall of the bathtub for sucking bathtub water stored in the bathtub; a pressurizing device for sucking bathtub water from the intake to pressurize and spout the bathtub water; and a jet nozzle having a single-layered tube body held to the bathtub wall lower than the overflow edge of the bathtub for jetting bathtub water introduced into the tube body into the bathtub while changing the direction of jetting. A running water introduction part for introducing pressurized bathtub water fed from the pressurizing device and a chamber are disposed inside the tube body. The chamber has a channel section contracted part and a channel section acutely expanded part at the end on the upstream side, and a spout which faces the inside of the bathtub at the end on the downstream side. The channel section contracted part communicates with the running water introduction part on the downstream side of the running water introduction part, and the section of the channel is contracted relative to the channel introduction part. The channel section acutely expanded part communicates with the channel section contracted part on the downstream side of the channel section contracted part, and the channel section is acutely expanded relative to the channel section contracted part. COPYRIGHT: (C)2009,JPO&INPIT
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