Bathtub device

Abstract

The hot water flow / cold water flow generating part is used for generating hot water flow or cold water flow in hot water or cold water stored in a bathtub by supplying hot water or cold water into the bathtub, and the vibration generating part is used for generating vibration of the hot water or cold water stored in the bathtub without supplying hot water or cold water into the bathtub. This makes it possible to provide a fine and smooth feeling of comfort for a bather. The present invention is a bathtub device comprising: a bathtub capable of storing hot water or cold water; a hot water flow / cold water flow generation unit which is provided in the bathtub and generates a hot water flow or a cold water flow inside the hot water or the cold water stored in the bathtub by supplying hot water or cold water into the bathtub; and a vibration generating unit which is provided in the bathtub and which vibrates the hot water or cold water stored in the bathtub without supplying the hot water or cold water into the bathtub.

Description

Technical Field

[0001] The invention relates to a bathtub device. Background Art

[0002] It is known to provide a speaker in a bathtub so that the user can enjoy music while bathing. For example, Patent Document 1 proposes to fix a sound source unit to the back of a bathtub. Patent Document 2 discloses to separately control a sound generator (speaker) facing a water storage area in the bathtub and a sound generator (speaker) facing a space area above the water storage area.

[0003] In addition, it is known that by supplying a flow of hot water or cold water (somewhat violently) into a bathtub, a hot water flow or a cold water flow can be generated inside the hot water or cold water accumulated in the bathtub, and the water pressure stimulation caused by the hot water flow or the cold water flow provides a comfortable feeling to the bather, and this has been commercialized (TOTO's "Waist-Rake Soup" or "Highway Lotion"

[0004] ンズ”).

[0005] The inventors of the present invention have discovered that a hot water flow / cold water flow generating unit that generates a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub by supplying hot water or cold water into the bathtub, and a vibration generating unit that generates vibrations in the hot water or cold water accumulated in the bathtub without supplying hot water or cold water into the bathtub, can be combined to provide a delicate sense of comfort to the bather.

[0006] Patent Document 1: Japanese Patent Application Laid-Open No. 3-15423

[0007] Patent Document 2: Japanese Patent Application Publication No. 2006-128970 Summary of the invention

[0008] The present invention is created based on the above insights. The first and second aspects of the present invention aim to provide a bather with a delicate sense of comfort by combining a hot water flow / cold water flow generating unit that generates a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub by supplying hot water or cold water into the bathtub, and a vibration generating unit that generates vibrations in the hot water or cold water accumulated in the bathtub without supplying hot water or cold water into the bathtub.

[0009] In addition, the purpose of the third, fourth and fifth aspects of the present invention is to combine a water jet generating unit that generates a water jet by supplying hot water or cold water into the bathtub from above the hot water surface or cold water surface of the hot water or cold water accumulated in the bathtub, and a vibration generating unit that vibrates the hot water or cold water accumulated in the bathtub without supplying hot water or cold water into the bathtub, thereby providing a delicate sense of comfort for the bather.

[0010] The first aspect of the present invention is a bathtub device, characterized in that it comprises: a bathtub that can store hot water or cold water; a hot water flow / cold water flow generating unit, which is arranged in the bathtub and generates a hot water flow or a cold water flow inside the hot water or cold water stored in the bathtub by supplying hot water or cold water into the bathtub; and a vibration generating unit, which is arranged in the bathtub and generates vibrations in the hot water or cold water stored in the bathtub without supplying hot water or cold water into the bathtub.

[0011] According to the first aspect of the present invention, a relatively strong water pressure stimulation can be given to the bather by a hot water flow or a cold water flow in a manner as if penetrating into the inside of the body (muscles, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating unit can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather.

[0012] In the first embodiment of the present invention, it is preferred that the maximum value of the water pressure stimulation in the bathtub caused by the vibration imparted by the vibration generating unit is smaller than the maximum value of the water pressure stimulation in the bathtub caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating unit.

[0013] In this case, it is more reliably prevented that the vibration generated by the vibration generating unit hinders the action of the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating unit.

[0014] In addition, it is preferred that at a specified position set in the bathtub (for example, a position corresponding to the body surface of a bather sitting / lying down during bathing), the water pressure stimulation caused by the vibration imparted by the vibration generating unit is smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating unit.

[0015] In this case, excessive stimulation (which may cause discomfort) to the skin of the bather is effectively suppressed.

[0016] In addition, it is preferred that the hot water flow / cold water flow generating portion is disposed on the dorsal side wall surface of the bathtub, and the vibration generating portion (shoulder vibration generating portion in an embodiment described later) is also disposed on the dorsal side wall surface of the bathtub.

[0017] In this case, the bather can feel the comfort-improving effects of both the stimulation by the vibration and the stimulation by the hot water flow or the cold water flow on the back side of the body where the bather is more likely to feel stimulation.

[0018] Furthermore, in this case, it is preferable that the vibration generating unit is arranged above the hot water flow / cold water flow generating unit.

[0019] When the hot water flow / cold water flow generating unit is arranged on the back side wall of the bathtub, it is expected that the water force of the hot water flow or the cold water flow will cause the shoulder of the bather to be close to the back side wall of the bathtub. Therefore, by arranging the vibration generating unit in the area of ​​the back side wall close to the shoulder as described above, the comfort effect generated by the vibration of the vibration generating unit can be more easily felt at the shoulder.

[0020] Furthermore, in this case, the back side wall surface of the bathtub where the vibration generating unit is arranged is preferably inclined.

[0021] When the bather's shoulder is in a body posture close to the dorsal side wall of the bathtub, the dorsal side wall of the bathtub is inclined so that the dorsal side wall is along the bather's body. When a vibration generating part is arranged here, it is easier to feel the comfort effect generated by the vibration of the vibration generating part.

[0022] Furthermore, in this case, it is preferable that the direction of the vibration imparted by the vibration generating unit is an oblique vertical direction.

[0023] When the bather's shoulder is in a body posture close to the back side wall of the bathtub, if the vibration direction is diagonally up and down, the comfort effect of the vibration described above will be more easily felt at the shoulder.

[0024] In addition, in the first embodiment of the present invention, it is preferred that the direction of the vibration imparted by the vibration generating unit (the vibration generating unit for the buttocks, the left vibration generating unit, and the right vibration generating unit in the embodiments described later) is approximately at right angles to the direction of the hot water flow or cold water flow generated by the hot water flow / cold water flow generating unit.

[0025] This makes it easy to feel the comfort effects of both the stimulation brought about by the vibration and the stimulation brought about by the flow of hot water or cold water independently.

[0026] In addition, in the first embodiment of the present invention, the vibration generating part (the foot vibration generating part in the embodiment described later) is arranged on the foot side wall surface of the bathtub, and the vibration generating part and the hot water flow / cold water flow generating part are preferably arranged at positions offset in the height direction and / or the left and right direction.

[0027] This makes it easy to feel the comfort effects of both the stimulation brought about by the vibration and the stimulation brought about by the flow of hot water or cold water independently.

[0028] Next, a second aspect of the present invention is a bathtub device, characterized in that it comprises: a bathtub that can store hot water or cold water; a hot water flow / cold water flow generating unit that is disposed in the bathtub and generates a hot water flow or a cold water flow inside the hot water or cold water stored in the bathtub by supplying hot water or cold water into the bathtub; a vibration generating unit that is disposed in the bathtub and generates vibrations in the hot water or cold water stored in the bathtub without supplying hot water or cold water into the bathtub; and a control unit that links the operation of the hot water flow / cold water flow generating unit and the operation of the vibration generating unit.

[0029] According to the second embodiment of the present invention, a relatively strong water pressure stimulation can be given to the bather through a hot water flow or a cold water flow in a manner as if penetrating into the inside of the body (muscles, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating unit can be given with the surface of the body (skin, etc.) as the center. Thus, a delicate sense of comfort can be provided to the bather. In particular, the action of the hot water flow / cold water flow generating unit and the action of the vibration generating unit are linked (interrelated), thereby further improving the delicate sense of comfort for the bather.

[0030] For example, it is preferred that the control unit can be set to a simultaneous action blocking mode, in which the control unit does not start the action of the vibration generating unit if the hot water flow / cold water flow generating unit is in action, and does not start the action of the hot water flow / cold water flow generating unit if the vibration generating unit is in action.

[0031] In this case, it is reliably prevented that the operation of the hot water flow / cold water flow generating unit and the operation of the vibration generating unit interfere with each other.

[0032] Furthermore, in this case, in the simultaneous action blocking mode, the control unit preferably starts the action of the vibration generating unit after the action of the hot water flow / cold water flow generating unit is completed when the control unit receives an instruction to start the action of the vibration generating unit during the action of the hot water flow / cold water flow generating unit, and starts the action of the hot water flow / cold water flow generating unit after the action of the vibration generating unit is completed when the control unit receives an instruction to start the action of the hot water flow / cold water flow generating unit during the action of the vibration generating unit.

[0033] In this way, it is possible to reliably prevent the actions of the hot water flow / cold water flow generating unit and the vibration generating unit from interfering with each other, while achieving operation that respects the bather's operation content (intention to use the hot water flow / cold water flow generating unit or the vibration generating unit).

[0034] Here, regarding the termination of the action of the hot water flow / cold water flow generating unit or the vibration generating unit, for example, when the function in operation is a function that continues to operate for a pre-selected time, the action can be terminated after waiting for the selected time to pass, or the action can be terminated immediately after receiving the timing of the operation content that intends to use the function that is not in operation, such as issuing a message sound of "In order to implement the vibration function, stop the water spray function", or information can be visually conveyed to the user by using a display unit, etc. instead of using sound.

[0035] Furthermore, in this case, in the simultaneous action blocking mode, the control unit preferably starts the action of the vibration generating unit within a specified time after the action of the hot water flow / cold water flow generating unit is completed when an instruction to start the action of the vibration generating unit is received during the action of the hot water flow / cold water flow generating unit.

[0036] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the hot water flow / cold water flow generating unit remains, the change from water flow stimulation to vibration stimulation can be made with less discomfort to the user.

[0037] In this case, the predetermined time is preferably a time corresponding to 0% to 80% of the time required for the hot water flow or cold water flow remaining in the bathtub to disappear after the operation of the hot water flow / cold water flow generating unit is completed.

[0038] As a result, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0039] Alternatively, in the second mode of the present invention, the control unit can be set to a simultaneous action permission mode, and in the simultaneous action permission mode, the control unit preferably reduces the output intensity of the hot water flow / cold water flow generating unit to less than or equal to a specified value and starts the action of the vibration generating unit when the control unit receives an instruction to start the action of the vibration generating unit during the action of the hot water flow / cold water flow generating unit, and reduces the output intensity of the hot water flow / cold water flow generating unit to less than or equal to a specified value and starts the action of the hot water flow / cold water flow generating unit when the control unit receives an instruction to start the action of the hot water flow / cold water flow generating unit during the action of the vibration generating unit.

[0040] This can reliably prevent the situation in which the effect of the hot water flow / cold water flow generated by the hot water flow / cold water flow generating unit becomes too strong and the effect of the vibration generated by the vibration generating unit cannot be felt.

[0041] Next, the third aspect of the present invention is a bathtub device, characterized in that it comprises: a bathtub that can store hot water or cold water; a water jet flow generating unit that is disposed above the bathtub and generates a water jet flow by supplying hot water or cold water into the bathtub from above the hot water surface or the cold water surface of the hot water or cold water stored in the bathtub; and a vibration generating unit that is disposed in the bathtub and vibrates the hot water or cold water stored in the bathtub without supplying hot water or cold water into the bathtub.

[0042] According to the third aspect of the present invention, a relatively strong water pressure stimulation can be given to the bather by the water jet in a manner as if it penetrates into the inside of the body (especially the muscles around the head and shoulders, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating unit can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather.

[0043] In the third aspect of the present invention, it is preferred that, assuming that no hot water or cold water is accumulated in the bathtub, the water jet generated by the water jet generating unit impinges on a specified bottom surface impingement position on the bottom surface of the bathtub, and the vibration generating unit is arranged on the dorsal side compared to the specified bottom surface impingement position in the front-to-back direction.

[0044] The water jet generated by the water jet generating unit is usually designed to surround the head and shoulders of the bather, but the water jet that collides around the head and shoulders of the bather and passes through these areas mainly hits the hot water surface or the cold water surface on the front side (foot side) of the bather, causing turbulence inside the hot water or cold water in the bathtub. Based on this, if the setting position of the vibration generating unit is set to the back side compared with the specified bottom surface landing position based on the specified bottom surface landing position, it can effectively reduce the situation that the water pressure stimulation caused by the vibration given by the vibration generating unit is hindered by the water jet generated by the water jet generating unit.

[0045] Alternatively, in the third aspect of the present invention, the water jet generated by the water jet generating unit preferably impinges on a specified hot water surface / cold water surface impingement position of the hot water surface or the cold water surface when hot water or cold water is accumulated in the bathtub, and the vibration generating unit is arranged on the dorsal side compared to the specified hot water surface / cold water surface impingement position in the front-to-back direction.

[0046] As described above, the water jet generated by the water jet generating unit mainly hits the hot water surface or the cold water surface at the front side (foot side) of the bather, causing turbulence inside the hot water or the cold water in the bathtub. Based on this, if the setting position of the vibration generating unit is set to the back side compared with the specified hot water surface / cold water surface hitting position based on the specified hot water surface / cold water surface hitting position, it is possible to more effectively reduce the situation that the water pressure stimulation caused by the vibration given by the vibration generating unit is hindered by the water jet generated by the water jet generating unit.

[0047] Next, the fourth aspect of the present invention is a bathtub device, characterized in that it comprises: a bathtub that can store hot water or cold water; a water jet flow generating unit that is disposed above the bathtub and generates a water jet flow by supplying hot water or cold water into the bathtub from above the hot water surface or the cold water surface of the hot water or cold water stored in the bathtub; a vibration generating unit that is disposed in the bathtub and vibrates the hot water or cold water stored in the bathtub without supplying hot water or cold water into the bathtub; and a control unit that links the operation of the water jet flow generating unit and the operation of the vibration generating unit.

[0048] According to the fourth aspect of the present invention, a relatively strong water pressure stimulation can be given to the bather through the water jet in a manner as if it penetrates into the inside of the body (especially the muscles around the head and shoulders, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating unit can be given with the surface of the body (skin, etc.) as the center. Thus, a delicate sense of comfort can be provided for the bather. In particular, the action of the water jet generating unit and the action of the vibration generating unit are linked (interrelated), thereby further improving the delicate sense of comfort for the bather.

[0049] For example, the control unit can be set to a simultaneous action blocking mode. In the simultaneous action blocking mode, the control unit preferably does not start the action of the vibration generating unit if the water jet generating unit is in action, and does not start the action of the water jet generating unit if the vibration generating unit is in action.

[0050] In this case, it is possible to reliably prevent the operation of the water jet flow generating unit and the operation of the vibration generating unit from interfering with each other.

[0051] Furthermore, in this case, in the simultaneous action blocking mode, when the control unit receives an instruction to start the action of the vibration generating unit during the action of the water jet flow generating unit, the control unit starts the action of the vibration generating unit after the action of the water jet flow generating unit is completed, and when the control unit receives an instruction to start the action of the water jet flow generating unit during the action of the vibration generating unit, the control unit starts the action of the water jet flow generating unit after the action of the vibration generating unit is completed.

[0052] Thus, it is possible to reliably prevent the operation of the water jet generating unit and the operation of the vibration generating unit from interfering with each other, while achieving operation that respects the bather's operation content (intention to use the water jet generating unit or the vibration generating unit).

[0053] Here, regarding the termination of the action of the water jet generating unit or the vibration generating unit, for example, when the function in operation is a function that continues to operate for a pre-selected time, the action can be terminated after waiting for the selected time to pass, or the action can be terminated immediately after receiving the timing of the operation content that intends to use the function that is not in operation, such as issuing a message sound of "In order to implement the vibration function, stop the water jet function", or information can be visually conveyed to the user by using a display unit, etc. instead of using sound.

[0054] Furthermore, in this case, in the simultaneous action blocking mode, when the control unit preferably receives an instruction to start the action of the vibration generating unit during the action of the water jet generating unit, the control unit starts the action of the vibration generating unit within a specified time after the action of the water jet generating unit is completed.

[0055] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the water jet flow generating unit remains, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0056] In this case, the predetermined time is preferably a time corresponding to 0% to 80% of the time required for the hot water flow or the cold water flow remaining in the bathtub to disappear after the operation of the water jet flow generating unit is completed.

[0057] As a result, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0058] Alternatively, in the fourth mode of the present invention, the control unit can be set to a simultaneous action allowing mode, and in the simultaneous action allowing mode, when the control unit receives an instruction to start the action of the vibration generating unit during the action of the water jet generating unit, the control unit preferably reduces the output intensity of the water jet generating unit to less than or equal to a specified value and starts the action of the vibration generating unit, and when the control unit receives an instruction to start the action of the water jet generating unit during the action of the vibration generating unit, the control unit reduces the output intensity of the hot water flow / cold water flow generating unit to less than or equal to a specified value and starts the action of the water jet generating unit.

[0059] This can reliably prevent the situation in which the effect of the hot water flow / cold water flow generated by the water jet flow generating unit becomes too strong and the effect of the vibration generated by the vibration generating unit cannot be felt.

[0060] Next, the fifth aspect of the present invention is a bathtub device, characterized in that it comprises: a bathtub that can store hot water or cold water; a water jet flow generating unit that is arranged above the bathtub and supplies hot water or cold water into the bathtub from a nozzle arranged above the hot water surface or the cold water surface of the hot water or cold water stored in the bathtub, thereby generating a water jet flow; and a vibration generating unit that is arranged in the bathtub and vibrates the hot water or cold water stored in the bathtub without supplying hot water or cold water to the bathtub, the structure being that, when viewed from above or from the side, a propagation direction of the vibration generated by the vibration generating unit and a traveling direction of the water jet when sprayed from the nozzle intersect.

[0061] According to the present invention, a relatively strong water pressure stimulation can be given to the bather through the water jet in a manner as if it penetrates into the inside of the body (especially the muscles around the head and shoulders, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating unit can be given with the surface of the body (skin, etc.) as the center. Thus, a delicate sense of comfort can be provided to the bather. In particular, the propagation direction of the vibration generated by the vibration generating unit intersects with the traveling direction of the water jet when it is ejected from the nozzle, thereby effectively suppressing the water pressure stimulation caused by the vibration generated by the vibration generating unit from being hindered by the water jet.

[0062] In this specification, "the direction of vibration propagation" is the direction of a straight line connecting the center point of the surface where the vibration amplitude of the vibration generating part (specifically, its vibrator) is the largest (or the point where the vibration amplitude is the largest) when the vibration generating part (specifically, its vibrator) is vibrated by a signal of an octave band noise passing through a nominal center frequency specified in ISO266 (for example, any of 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, 8000 Hz, and 16000 Hz as a 1 / 1 octave band) and a point separated from the point by a specified distance and where the maximum sound pressure is measured.

[0063] Most likely, when the vibration generating unit is provided on the wall of the bathtub, it can be a direction perpendicular to the wall portion where the vibration generating unit is provided (including a range of ±10° in the present application); when the vibration generating unit is provided in a hole provided in the bathtub, it can be a direction extending in the vibration direction of the vibrator from the center point of the surface where the vibration amplitude of the vibrator is the largest (or the point where the vibration amplitude is the largest) (including a range of ±10° in the present application).

[0064] On the other hand, in this specification, "the direction of travel of (the) water jet when ejected from (the) nozzle" is the direction determined above if it can be determined by visual recognition, but approximately, it is a direction orthogonal to the opening surface forming the nozzle.

[0065] In addition, it is preferable that the structure is such that, when viewed in three-dimensional view, the propagation direction of the vibration generated by the vibration generating unit and the traveling direction of the jet flow when ejected from the ejection port do not intersect.

[0066] In this case, it is possible to more effectively suppress the situation in which the water pressure stimulation caused by the vibration generated by the vibration generating unit is hindered by the water jet flow.

[0067] Furthermore, it is preferable that the structure is such that, in a plan view or a side view, a propagation direction of the vibration generated by the vibration generating portion and a traveling direction of the jet flow when the water is ejected from the ejection port are substantially orthogonal.

[0068] In this case, it is possible to more effectively suppress the situation in which the water pressure stimulation caused by the vibration generated by the vibration generating unit is hindered by the water jet flow.

[0069] In the present specification, “substantially orthogonal” means a relationship of intersecting at an angle of 80° to 100°, and preferably a relationship of intersecting at an angle of 85° to 95°.

[0070] The bathtub device of the fifth aspect of the present invention may further include a hot water flow / cold water flow generating unit, which is provided in the bathtub and generates a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub by supplying hot water or cold water into the bathtub. In this case, it is preferably configured so that the propagation direction of the vibration generated by the vibration generating unit intersects with the traveling direction of the hot water flow or the cold water flow when viewed from above or from the side.

[0071] In this case, it is possible to effectively suppress the situation in which the water pressure stimulation caused by the vibration generated by the vibration generating unit is hindered by the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating unit.

[0072] In this specification, "the direction of travel of (the) hot water flow or (the) cold water flow" is the direction determined above if it can be determined by visual recognition, but approximately, it can be a direction orthogonal to the opening surface of the nozzle forming the (the) hot water flow or (the) cold water flow.

[0073] In addition, the following inventions are clearly described in the application serving as the basis for the priority claim.

[0074] That is, the invention clearly described in the application that serves as the basis for priority is a bathtub device, characterized in that it comprises: a bathtub that can store hot water or cold water; a water jet flow generating unit that is arranged above the bathtub and generates a water jet flow by supplying hot water or cold water into the bathtub from above the hot water surface or the cold water surface of the hot water or cold water stored in the bathtub; and a vibration generating unit that is arranged in the bathtub and causes the hot water or cold water stored in the bathtub to vibrate without supplying hot water or cold water to the bathtub, wherein the propagation direction of the vibration generated by the vibration generating unit is substantially orthogonal to the traveling direction of the water jet flow when the water impinges on the hot water surface or the cold water surface.

[0075] According to the present invention, a relatively strong water pressure stimulation can be given to the bather through the water jet in a manner as if it penetrates into the inside of the body (especially the muscles around the head and shoulders, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating unit can be given with the surface of the body (skin, etc.) as the center. Thus, a delicate sense of comfort can be provided to the bather. In particular, the propagation direction of the vibration generated by the vibration generating unit is roughly orthogonal to the traveling direction of the water jet when it hits the hot water surface or the cold water surface, thereby effectively preventing the water pressure stimulation caused by the vibration generated by the vibration generating unit from being hindered by the water jet.

[0076] In the present invention, it is preferred that a propagation direction of the vibration generated by the vibration generating unit and a ray extending in the traveling direction from a water impact position on the hot water surface or the cold water surface of the spray water flow do not intersect.

[0077] In this case, it is possible to more effectively suppress the situation in which the water pressure stimulation caused by the vibration generated by the vibration generating unit is hindered by the water jet flow.

[0078] In addition, the bathtub device of the present invention may also include a hot water flow / cold water flow generating unit, which is provided in the bathtub and generates a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub by supplying hot water or cold water into the bathtub. In this case, it is preferable that the propagation direction of the vibration generated by the vibration generating unit is substantially orthogonal to the traveling direction of the hot water flow or the cold water flow.

[0079] In this case, it is possible to effectively suppress the situation in which the water pressure stimulation caused by the vibration generated by the vibration generating unit is hindered by the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating unit.

[0080] Effects of the Invention

[0081] According to the first embodiment of the present invention, a hot water flow / cold water flow generating unit that generates a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub by supplying hot water or cold water into the bathtub, and a vibration generating unit that vibrates the hot water or cold water accumulated in the bathtub without supplying hot water or cold water into the bathtub are combined, thereby providing a delicate sense of comfort to the bather. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] Figure 1 It is a schematic cross-sectional view of a bathtub device according to Embodiments 1-1 to 5-1 of the present invention.

[0083] Figure 2 This is a schematic diagram of the structure of an example of a hot water flow / cold water flow generating unit.

[0084] Figure 3 This is a diagram showing an example of an operation image of a hot water flow / cold water flow generating unit.

[0085] Figure 4 This is a schematic diagram of the structure of another example of a bathtub equipped with a hot water flow / cold water flow generating unit.

[0086] Figure 5 It is a schematic configuration diagram showing an example of a vibration generating unit.

[0087] Figure 6 This is a diagram showing an example of an operation image of the vibration generating unit.

[0088] Figure 7 It is a diagram showing an operation image of another example of the vibration generating unit.

[0089] Figure 8 This is a schematic diagram of an example of a sensor for measuring water pressure stimulation.

[0090] Fig. 9 It is a schematic cross-sectional view of a bathtub device according to Embodiments 1-2 to 5-2 of the present invention.

[0091] Fig.10 This is a flowchart of an example of the simultaneous action blocking mode (1).

[0092] Fig.11 This is a flowchart of an example of the simultaneous operation permission mode (1).

[0093] Fig.12 This is a supplementary cross-sectional view of the bathtub device according to Embodiment 3-1 of the present invention.

[0094] Fig.13 This is a supplementary cross-sectional view of the bathtub device according to Embodiment 3-2 of the present invention.

[0095] Fig.14 This is a flowchart of an example of simultaneous action blocking mode (2).

[0096] Fig.15 This is a flowchart of an example of the simultaneous operation permission mode (2). DETAILED DESCRIPTION

[0097] (1-1st embodiment: arrangement structure)

[0098] Next, Embodiment 1-1 of the present invention will be described with reference to the drawings. Figure 1 It is a schematic cross-sectional view passing through the hot water flow / cold water flow generating portion 11 of the bathtub device 1 according to the 1-1 embodiment of the present invention.

[0099] like Figure 1 As shown, the bathtub device 1 of the first embodiment has a bathtub 2 capable of storing hot water or cold water. The bathtub 2 has a back side wall surface 2a, to which the back of the intended bather is directed, a foot side wall surface 2b, to which the feet of the intended bather are directed, a left side wall surface 2c, to which the left side of the intended bather is directed, and a right side wall surface 2d, to which the right side of the intended bather is directed.

[0100] The dimensions of the bathtub 2 are, for example, a roughly rectangular (approximately oblong) shape of 450 mm×1100 mm at the bottom, a roughly rectangular (approximately oblong) shape of 600 mm×1140 mm at the standard height surface (e.g., height 350 mm) when storing hot or cold water, and a roughly rectangular (approximately oblong) shape of 650 mm×1140 mm at the upper opening surface (e.g., height 500 mm).

[0101] × 1350mm roughly rectangular (roughly oblong). Figure 1 The right side region is not shown in the cross section, but the elements on the right side that are symmetrical are shown only by numbers in brackets.

[0102] Furthermore, the positions of the central axes of the left and right pairs of hot water flow / cold water flow generating parts 11 and 12 are positioned at a predetermined height position (e.g., a height position of 150 mm from the bottom surface) of the back side wall surface 2a, which is predetermined to correspond to the position of the waist of the bather. The back side wall surface 2a is inclined at approximately 3° relative to the vertical plane in the area where the hot water flow / cold water flow generating parts 11 and 12 are provided. The left and right pairs of hot water flow / cold water flow generating parts 11 and 12 are disposed symmetrically in the bathtub 2, and their respective central axes are separated from each other by 150 mm.

[0103] A pair of left and right hot water flow / cold water flow generating parts 11, 12 are each a device mechanism for generating a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub 2 by violently supplying hot water or cold water into the bathtub 2, and are visually identified in the dorsal side wall surface 2a as an annular element component with an outer diameter of 70mm, an inner diameter of 26mm, and a protruding height (thickness) of 11mm into the bathtub.

[0104] Specifically, if Figure 2 and Figure 3 As shown, the device mechanism has the function of spraying water in a manner of describing a circle through random curves to provide comfortable stimulation centered on the waist. Figure 2 1 is a schematic diagram showing an example of the hot water flow / cold water flow generating unit 11, 12. Figure 3 FIG. 1 is a diagram showing an example of an operation image of the hot water flow / cold water flow generating units 11 and 12 .

[0105] Back to Figure 1 On the left side wall portion 2c of the bathtub 2, water intake ports 9a, 9b for circulating water to the hot water flow / cold water flow generating portions 11, 12 are provided at two specified positions (for example, at a height of 90 mm from the bottom surface of the bathtub 2, and at a position 170 mm from the foot side and a position 780 mm from the lower end of the back side wall portion 2a on the foot side). Figure 1 The water inlets 9a and 9b of the example are annular element components having an outer diameter of 82 mm and a protruding height (thickness) of 14 mm into the bathtub.

[0106] exist Figure 2 and Figure 3 In one example of the hot water flow / cold water flow generating unit 11, 12 shown, no air is mixed in the hot water flow or the cold water flow. Figure 4 FIG. 2 is a schematic diagram showing another example of the hot water flow / cold water flow generating unit 11, 12. Figure 4 As shown, a device mechanism may be adopted in which a hot water flow or a cold water flow mixed with air is strongly supplied into the bathtub 2 , thereby generating a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub 2 .

[0107] On the other hand, the positions of the center axes of the left and right pair of shoulder vibration generating parts 21, 22 are positioned at a predetermined height position (for example, a height position of 400 mm from the bottom surface of the bathtub 2) of the dorsal side wall surface 2a that is predetermined to correspond to the position of the bather's shoulders. The dorsal side wall surface 2a is inclined at approximately 20° relative to the vertical plane in the area where the shoulder vibration generating parts 21, 22 are provided. The left and right pair of shoulder vibration generating parts 21, 22 are arranged symmetrically in the bathtub 2, and their respective center axes are separated from each other by 250 mm. The vibration direction of the shoulder vibration generating parts 21, 22 is adjusted to a direction perpendicular to the dorsal side wall surface 2a, and as a result, the vibration direction of the shoulder vibration generating parts 21, 22 becomes an oblique up and down direction inclined at approximately 20°.

[0108] In addition, the positions of the central axes of the left and right pair of foot vibration generating parts 23 and 24 are positioned at a predetermined height position (e.g., a height position of 200 mm from the bottom surface of the bathtub 2) of the foot side wall surface 2b of the bathtub 2. The left and right pair of foot vibration generating parts 23 and 24 are disposed symmetrically in the bathtub 2, and their central axes are separated from each other by 250 mm.

[0109] In addition, the positions of the central axes of the left and right pair of buttocks vibration generating parts 25 and 26 are positioned at a predetermined position (e.g., a position 350 mm from the lower end of the back side wall surface 2a) on the bottom surface of the bathtub 2 and predetermined to correspond to the position of the buttocks of the bather. The left and right pair of buttocks vibration generating parts 25 and 26 are arranged symmetrically in the bathtub 2, and their central axes are separated from each other by 250 mm.

[0110] In addition, the positions of the center axes of the left vibration generating part 27 and the right vibration generating part 28 are respectively positioned at the left and right wall surfaces 2c and 2d of the bathtub 2 and at specified positions (for example, at a height of 200 mm from the bottom surface of the bathtub 2 and at a position 250 mm from the lower end of the back wall surface 2a on the foot side).

[0111] The shoulder vibration generating units 21 and 22 , the foot vibration generating units 23 and 24 , the buttocks vibration generating units 25 and 26 , the left vibration generating unit 27 , and the right vibration generating unit 28 may have a common device structure, and may employ a common speaker or the like.

[0112] Figure 5 2 is a schematic diagram showing an example of the structure of the vibration generating units 21 to 28. Figure 5In the vibration generating unit of the form shown, the magnitude of the vibration force is represented by the Lorentz force (F=IBL). F is the magnitude of the vibration force, I is the current value flowing in the coil, B is the magnetic flux density generated at this time, and L is the length of the core. When the vibration generating units 21 to 28 are directly mounted on the walls of the bathtub 2, the walls of the bathtub 2 themselves directly vibrate, imparting vibration to the water accumulated in the bathtub 2.

[0113] Figure 6 2 is a diagram showing an example of an operation image of the vibration generating units 21 to 28. Figure 6 As shown, when the vibration generating parts 21 to 28 are directly mounted on the walls of the bathtub 2, the walls of the bathtub 2 themselves directly vibrate, thereby imparting vibration to the water stored in the bathtub 2. Alternatively, Figure 7 FIG. 2 is a diagram showing another example of an operation image of the vibration generating units 21 to 28. Figure 7 As shown, it is also possible to manufacture the vibration generating parts 21 to 28 as dedicated units, respectively, provide holes for mounting on the walls of the bathtub 2, and mount the units in the holes.

[0114] (1-1st embodiment: control structure)

[0115] In the present embodiment, the maximum value of the water pressure stimulation in the bathtub 2 caused by the vibrations imparted by the vibration generating units 21 to 28 (usually the water pressure stimulation in the area closest to each vibration generating unit 21 to 28) is set to be smaller than the maximum value of the water pressure stimulation in the bathtub 2 caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 (usually the water pressure stimulation in the area closest to the hot water flow / cold water flow generating units 11 and 12).

[0116] Furthermore, in the present embodiment, it is set that at a specified position set in the bathtub 2 (for example, a position corresponding to the body surface of a bather sitting / lying down during bathing), the water pressure stimulation caused by the vibrations imparted by the vibration generating units 21 to 28 is smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11, 12.

[0117] These settings can be achieved by adjusting the electrical signals driving the vibration generators 21 to 28 and the electrical signals driving the hot water flow / cold water flow generators 11 and 12 (particularly the electrical signals supplied to the built-in motors for spraying hot water or cold water).

[0118] In addition, the "water pressure stimulation" used as an indicator for adjusting these signals is evaluated (measured) according to the following <Water Pressure Stimulation Measurement Method> as an example. In addition, according to "JIS5532:2014", the measurement was performed when a 50 Hz sine wave and pink noise were input to the shoulder vibration generating parts 21, 22, the foot vibration generating parts 23, 24, the left vibration generating part 27, and the right vibration generating part 28.

[0119] <Water pressure stimulation measurement method>

[0120] A new sensor having a sphere placed in a transparent tube is provided at a predetermined position inside the hot or cold water stored in the bathtub 2, and the distance moved by the sphere in the tube is measured as "water pressure stimulation". Figure 8 : is a schematic diagram of an example of the sensor. For example, the cylinder is made of polypropylene, with an outer diameter of 50 mm, an inner diameter of 40 mm, and a length of 500 mm, and the sphere is made of foamed polystyrene, with a diameter of φ30 mm. The cylinder is arranged parallel to the water flow direction of the hot water flow / cold water flow generating parts 11, 12, the vibration direction of the shoulder vibration generating parts 21, 22, the vibration direction of the foot vibration generating parts 23, 24, or the vibration direction of the left vibration generating part 27 and the right vibration generating part 28.

[0121] Will Figure 8 One end of the tube shown is arranged at a position separated by 1 mm from the hot water flow / cold water flow generating parts 11, 12, the shoulder vibration generating parts 21, 22, the foot vibration generating parts 23, 24, or the left vibration generating part 27 and the right vibration generating part 28. Figure 8 The sphere housed inside the tube shown is set to be in contact with the hot water flow / cold water flow generating parts 11, 12, the shoulder vibration generating parts 21, 22, the foot vibration generating parts 23, 24, or the left vibration generating part 27 and the right vibration generating part 28, respectively. The tube is further kept parallel to the water flow direction of the hot water flow / cold water flow generating parts 11, 12, the vibration direction of the shoulder vibration generating parts 21, 22, the vibration direction of the foot vibration generating parts 23, 24, or the left vibration generating part 27 and the right vibration generating part 28, respectively, so that the hot water flow / cold water flow generating parts 11, 12, the shoulder vibration generating parts 21, 22, the foot vibration generating parts 23, 24, or the left vibration generating part 27 and the right vibration generating part 28 respectively move in the following manner, and the moving distance of the sphere after a specified time from the start of the action, for example, after 5 seconds, is measured.

[0122] First, the hot water flow / cold water flow generating parts 11 and 12 are driven at "strong output", "medium output" and "weak output", respectively. The moving distance of the sphere is about 500 mm or more.

[0123] Here, in the "strong output" of the hot water flow / cold water flow generating parts 11, 12, 70 liters of hot water / cold water are sprayed out per minute, in the "medium output" of the hot water flow / cold water flow generating parts 11, 12, 60 liters of hot water / cold water are sprayed out per minute, and in the "weak output" of the hot water flow / cold water flow generating parts 11, 12, 50 liters of hot water / cold water are sprayed out per minute.

[0124] Next, the shoulder vibration generating parts 21 and 22 are driven by input of a 50 Hz sine wave or pink noise. The moving distance of the sphere is about 15 mm.

[0125] Next, the foot vibration generators 23 and 24 are driven by input of a 50 Hz sine wave or pink noise. The movement distance of the ball is about 15 mm.

[0126] Next, the left vibration generating unit 27 and the right vibration generating unit 28 are driven by input of a 50 Hz sine wave or pink noise. The moving distance of the sphere is about 15 mm.

[0127] As described in the present embodiment, the movement distance of the sphere in the area closest to the hot water flow / cold water flow generating parts 11, 12 when the hot water flow / cold water flow generating parts 11, 12 are driven by the "strong output", "medium output" and "weak output" respectively, is longer than the movement distance of the sphere in the area closest to the shoulder vibration generating parts 21, 22 when the shoulder vibration generating parts 21, 22 are driven by the input of a 50 Hz sine wave or pink noise, or the movement distance of the sphere in the area closest to the foot vibration generating parts 23, 24 when the foot vibration generating parts 23, 24 are driven by the input of a 50 Hz sine wave or pink noise, or The state in which the movement distance of the sphere in the area closest to the left vibration generating unit 27 and the right vibration generating unit 28 when driven by the sine wave or pink noise input to the left vibration generating unit 27 and the right vibration generating unit 28 is large satisfies the condition that "the maximum value of the water pressure stimulation in the bathtub caused by the vibration imparted by the vibration generating unit is smaller than the maximum value of the water pressure stimulation in the bathtub caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating unit". In addition, the condition that "at a specified position set in the bathtub, the water pressure stimulation caused by the vibration imparted by the vibration generating unit is smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating unit" is satisfied.

[0128] In addition, in the present embodiment, the sphere is made of foamed polystyrene, but it may be made of a material having a specific gravity substantially equal to that of water (e.g., within ±5%), such as a sphere filled with a nylon member. By making the sphere as described above, for example, the vibration having a vertical component generated by the buttocks vibration generating parts 25, 26, etc. can also be accurately measured.

[0129] The driving of the hot water flow / cold water flow generating units 11, 12, the selection of the output intensity (strong, medium, weak) of the hot water flow / cold water flow generating units 11, 12, the driving of each of the vibration generating units 21 to 28, etc. are controlled by the control unit 35, for example, based on the input operation from the bather via the remote control operating unit 30.

[0130] (1-1st embodiment: effect)

[0131] According to the bathtub device 1 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather in a manner as if penetrating into the inside of the body (muscles, etc.) by the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11 and 12, and on the other hand, a delicate water pressure stimulation caused by the vibration from the vibration generating parts 21 to 28 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather.

[0132] In addition, according to the bathtub device 1 of the present embodiment, the maximum value of the water pressure stimulation in the bathtub 2 caused by the vibrations imparted by the vibration generating units 21 to 28 is adjusted to be smaller than the maximum value of the water pressure stimulation in the bathtub 2 caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11 and 12.

[0133] This more reliably prevents the vibrations generated by the vibration generators 21 to 28 from hindering the action of the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 .

[0134] In addition, according to the bathtub device 1 of the present embodiment, at a specified position set in the bathtub 2 (for example, a position corresponding to the body surface of a bather seated during bathing), the water pressure stimulation caused by the vibration imparted by the vibration generating units 21 to 28 is adjusted to be smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11, 12.

[0135] This effectively suppresses excessive stimulation (which may cause discomfort) to the skin of the bather.

[0136] According to the bathtub device 1 of this embodiment, the hot water flow / cold water flow generating parts 11 and 12 are arranged on the back wall surface 2 a of the bathtub 2 , and the shoulder vibration generating parts 21 and 22 are also arranged on the back wall surface 2 a of the bathtub 2 .

[0137] As a result, the bather can feel the comfort-enhancing effects of both the stimulation by the vibration and the stimulation by the hot water flow or the cold water flow on the back side of the body which is easily stimulated.

[0138] Furthermore, according to the bathtub device 1 of the present embodiment, the shoulder vibration generating parts 21 and 22 are arranged above the hot water flow / cold water flow generating parts 11 and 12 .

[0139] The hot water flow / cold water flow generating parts 11, 12 are arranged on the dorsal side wall surface 2a of the bathtub 2. It is expected that the body posture of the bather's shoulder side is close to the dorsal side wall surface 2a of the bathtub 2 due to the water force of the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11, 12. As a result, since the shoulder vibration generating parts 21, 22 are arranged in the area of ​​the dorsal side wall surface close to the shoulder side as described above, the comfort effect generated by the vibration of the shoulder vibration generating parts 21, 22 is more easily felt at the shoulder side.

[0140] Furthermore, according to the bathtub device 1 of the present embodiment, the back side wall surface portion 2a of the bathtub 2 where the shoulder vibration generating parts 21 and 22 are arranged is inclined.

[0141] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 2a of the bathtub 2, the dorsal side wall surface 2a of the bathtub 2 is inclined so that the dorsal side wall surface 2a is along the bather's body. Since the shoulder vibration generating parts 21 and 22 are arranged here, it is easier to feel the comfort effect generated by the vibration of the shoulder vibration generating parts 21 and 22.

[0142] Furthermore, according to the bathtub device 1 of the present embodiment, the direction of the vibrations applied by the shoulder vibration generating parts 21 and 22 is the oblique up-and-down direction.

[0143] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 2a of the bathtub 2, if the direction of the vibration generated by the shoulder vibration generating parts 21 and 22 is obliquely in the upward and downward directions, the comfort effect generated by the above-mentioned vibration will be more easily felt at the shoulder side.

[0144] In addition, according to the bathtub device 1 of this embodiment, the direction of the vibration imparted by the buttocks vibration generating parts 25, 26, the left vibration generating part 27 and the right vibration generating part 28 is substantially at right angles to the direction of the hot water flow or cold water flow generated by the hot water flow / cold water flow generating parts 11, 12.

[0145] In the present invention, "substantially a right angle" is defined as an angle including not only 90 degrees but also, for example, 70 to 110 degrees.

[0146] As a result, the users can easily and independently feel the comfort-enhancing effects of both the stimulation caused by the vibrations generated by the vibration generating units 22 to 28 and the stimulation caused by the hot water flow or cold water flow from the hot water flow / cold water flow generating units 11 and 12 .

[0147] According to the bathtub device 1 of this embodiment, the foot vibration generators 23 and 24 are arranged on the foot side wall surface 2 b of the bathtub 2 , and the foot vibration generators 23 and 24 and the hot water flow / cold water flow generators 11 and 12 are arranged at positions offset in the height direction.

[0148] As a result, it is easy to independently feel the comfort effects of both the stimulation brought by the vibration from the foot vibration generating parts 23 and 24 and the stimulation brought by the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11 and 12.

[0149] Here, the foot vibration generating parts 23, 24 and the hot water flow / cold water flow generating parts 11, 12 are replaced by offsets in the height direction, or, on this basis, offsets in the left and right directions are also suitable (for example, a left and right pair of foot vibration generating parts 23, 24 are arranged symmetrically in the bathtub 2, and their respective center axes can be separated from each other by 250 mm).

[0150] (1st-2nd embodiment: arrangement structure)

[0151] The following describes the first and second embodiments of the present invention with reference to the accompanying drawings. Unless otherwise specified, the configuration structure of the bathtub device involved in the first and second embodiments of the present invention is the same as that of the bathtub device described in the accompanying drawings. Figures 1 to 7 The bathtub device 1 according to the 1-1 embodiment of the present invention described above has the same arrangement structure.

[0152] Fig. 9 It is a schematic irregular cross-sectional view passing through the hot water flow / cold water flow generating portion 111 (arranged on the left side in the left-right direction) and the water suction port 109 (arranged in the center in the left-right direction) of the bathtub device 101 according to the first and second embodiments of the present invention.

[0153] The bathtub 102 has a deep bottom surface corresponding to the buttocks of the bather, and has a plane shape of 900mm×1690mm at a standard height surface (for example, 210mm from the lowest bottom surface corresponding to the buttocks) when storing hot or cold water. Fig. 9The right side region is not shown in the cross section, but the elements on the right side that are symmetrical are shown only by numbers in brackets.

[0154] Furthermore, the positions of the central axes of the left and right pairs of hot water flow / cold water flow generating parts 111 and 112 are positioned at a predetermined height position (e.g., a height position of 45 mm from the bottom surface) of the back side wall surface 102a, which is predetermined to correspond to the position of the waist of the bather. The back side wall surface 102a is inclined at approximately 50 degrees relative to the vertical plane in the area where the hot water flow / cold water flow generating parts 111 and 112 are provided. The left and right pairs of hot water flow / cold water flow generating parts 111 and 112 are disposed symmetrically in the bathtub 102, and their respective central axes are separated from each other by 140 mm.

[0155] A pair of left and right hot water flow / cold water flow generating parts 111, 112 are respectively device mechanisms for generating hot water flow or cold water flow inside the hot water or cold water accumulated in the bathtub 102 by violently supplying hot water or cold water into the bathtub 102, and are visually identified in the dorsal side wall surface 102a as an annular element component with an outer diameter of 70mm, an inner diameter of 28mm, and a protruding height (thickness) of 9mm into the bathtub.

[0156] Back to Fig. 9 On the foot side wall surface 102b of the bathtub 102, a water intake port 109 for circulating water to the hot water flow / cold water flow generating parts 111, 112 is provided at a specified position (for example, at a height of 180 mm from the bottom surface of the bathtub 102 and at the center position in the left and right directions). Fig. 9 The water suction port 109 of the example is an annular element component having an outer diameter of 90 mm and a protruding height (thickness) of 12 mm into the bathtub.

[0157] exist Figure 2 and Figure 3 In one example of the hot water flow / cold water flow generating unit 111, 112 shown, no air is mixed in the hot water flow or the cold water flow. Figure 4 FIG. 2 is a schematic diagram of another example of the hot water flow / cold water flow generating unit 111, 112. Figure 4 As shown, the following device mechanism may also be used, that is, by violently supplying a hot water flow or a cold water flow mixed with air into the bathtub 102, a hot water flow or a cold water flow is generated inside the hot water or cold water accumulated in the bathtub 102 (this is a device mechanism installed in TOTO products already on the market under the name of "ブローバス", etc.).

[0158] On the other hand, the positions of the center axes of the left and right pair of shoulder vibration generating parts 121, 122 are positioned at a predetermined height position of the dorsal side wall surface 102a that is predetermined to correspond to the position of the bather's shoulders (for example, a height position of 250 mm from the lowest bottom surface of the bathtub 102). The dorsal side wall surface 102a is inclined at approximately 50° relative to the vertical plane in the area where the shoulder vibration generating parts 121, 122 are provided. The left and right pair of shoulder vibration generating parts 121, 122 are arranged symmetrically in the bathtub 102, and their respective center axes are separated from each other by 250 mm. The vibration direction of the shoulder vibration generating parts 121, 122 is adjusted to a direction perpendicular to the dorsal side wall surface 102a, and as a result, the vibration direction of the shoulder vibration generating parts 121, 122 becomes an oblique up and down direction inclined at approximately 50°.

[0159] In addition, the positions of the central axes of the left and right pair of foot vibration generating parts 123, 124 are positioned at a predetermined height position (e.g., a height position of 300 mm from the lowest bottom surface of the bathtub 102) of the foot side wall surface 102b of the bathtub 102. The left and right pair of foot vibration generating parts 123, 124 are disposed symmetrically in the bathtub 102, and their central axes are separated from each other by 250 mm.

[0160] In addition, the positions of the central axes of the left and right pair of buttocks vibration generating parts 125 and 126 are positioned at a predetermined position (e.g., a position 150 mm from the lower end of the back side wall surface 102a) on the bottom surface of the bathtub 102 and predetermined to correspond to the position of the buttocks of the bather. The left and right pair of buttocks vibration generating parts 125 and 126 are arranged symmetrically in the bathtub 102, and their central axes are separated from each other by 250 mm.

[0161] In addition, the positions of the center axes of the left vibration generating unit 27 and the right vibration generating unit 28 are respectively positioned at the left and right wall portions 102c and 102d of the bathtub 102 and at specified positions (for example, at a height of 200 mm from the lowest bottom surface of the bathtub 102 and at a position 50 mm from the lower end of the dorsal side wall portion 102a close to the shoulder side).

[0162] The shoulder vibration generating units 121, 122, the foot vibration generating units 123, 124, the buttocks vibration generating units 125, 126, the left vibration generating unit 127, and the right vibration generating unit 128 can be a common device structure, and a common speaker or the like can be used. Figures 5 to 9 The description regarding the vibration generating units 21 to 28 described above can also be applied to the vibration generating units 121 to 128 .

[0163] (1st-2nd embodiment: control structure)

[0164] In the present embodiment, it is also set that the maximum value of the water pressure stimulation in the bathtub 102 caused by the vibrations imparted by the vibration generating units 121 to 128 (usually the water pressure stimulation of the area closest to each vibration generating unit 121 to 128) is smaller than the maximum value of the water pressure stimulation in the bathtub 102 caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111, 112 (usually the water pressure stimulation of the area closest to the hot water flow / cold water flow generating units 111, 112).

[0165] Furthermore, in the present embodiment, it is also set that at a specified position set in the bathtub 102 (for example, a position corresponding to the body surface of a bather sitting / lying down during bathing), the water pressure stimulation caused by the vibrations imparted by the vibration generating units 121 to 128 is smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111, 112.

[0166] These settings can be achieved by adjusting the electrical signals driving the vibration generators 121 to 128 and the electrical signals driving the hot water flow / cold water flow generators 111 and 112 (particularly the electrical signals supplied to the built-in motors for spraying hot water or cold water).

[0167] The "water pressure stimulation" used as an index for adjusting these signals can be evaluated (measured) by, for example, the <water pressure stimulation measurement method> described above. Furthermore, for example, the vibration intensity described in paragraphs 0098 to 0106 can be adjusted in advance.

[0168] The driving of the hot water flow / cold water flow generating units 111, 112, the selection of the output intensity (strong, medium, weak) of the hot water flow / cold water flow generating units 111, 112, the driving of each of the vibration generating units 121~128, etc. are controlled by the control unit 135, for example, based on the input operation from the bather of the remote control operating unit 130.

[0169] (1st-2nd embodiment: effect)

[0170] According to the bathtub device 101 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather in a manner as if penetrating into the inside of the body (muscles, etc.) by the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 111 and 112, and on the other hand, a delicate water pressure stimulation caused by the vibration from the vibration generating parts 121 to 128 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather.

[0171] In addition, according to the bathtub device 101 of this embodiment, the maximum value of the water pressure stimulation in the bathtub 102 caused by the vibration imparted by the vibration generating units 121 to 128 is adjusted to be smaller than the maximum value of the water pressure stimulation in the bathtub 102 caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111 and 112.

[0172] This more reliably prevents the vibrations generated by the vibration generators 121 to 128 from hindering the action of the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating units 111 and 112 .

[0173] In addition, according to the bathtub device 101 of the present embodiment, the water pressure stimulation caused by the vibration imparted by the vibration generating units 121 to 128 at a specified position set in the bathtub 102 (for example, a position corresponding to the body surface of a bather sitting in the bath) is adjusted to be smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111, 112.

[0174] This effectively suppresses excessive stimulation (which may cause discomfort) to the skin of the bather.

[0175] In addition, according to the bathtub device 101 of this embodiment, the hot water flow / cold water flow generating parts 111 and 112 are also arranged on the back side wall surface 102a of the bathtub 102, and the shoulder vibration generating parts 121 and 122 are also arranged on the back side wall surface 102a of the bathtub 102.

[0176] As a result, the bather can feel the comfort-enhancing effects of both the stimulation by the vibration and the stimulation by the hot water flow or the cold water flow on the back side of the body which is easily stimulated.

[0177] Furthermore, according to the bathtub device 101 of the present embodiment, the shoulder vibration generating parts 121 and 122 are also arranged above the hot water flow / cold water flow generating parts 111 and 112 .

[0178] The dorsal side wall surface 102a of the bathtub 102 is provided with hot water flow / cold water flow generating parts 111, 112, and it is expected that the body posture of the bather's shoulder side is close to the dorsal side wall surface 102a of the bathtub 102 due to the water force of the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 111, 112. As a result, since the shoulder vibration generating parts 121, 122 are arranged in the area of ​​the dorsal side wall surface close to the shoulder side as described above, the comfort effect generated by the vibration of the shoulder vibration generating parts 121, 122 is more easily felt at the shoulder side.

[0179] Furthermore, according to the bathtub device 101 of the present embodiment, the back side wall surface 102a of the bathtub 102 where the shoulder vibration generating parts 121 and 122 are arranged is also inclined.

[0180] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 102a of the bathtub 102, the dorsal side wall surface 102a of the bathtub 102 is inclined so that the dorsal side wall surface 102a is along the bather's body. Since the shoulder vibration generating parts 121 and 122 are arranged here, it is easier to feel the comfort effect generated by the vibration of the shoulder vibration generating parts 121 and 122.

[0181] Furthermore, according to the bathtub device 101 of the present embodiment, the direction of the vibrations imparted by the shoulder vibration generating parts 121 and 122 is also the oblique vertical direction.

[0182] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 102a of the bathtub 102, if the direction of the vibration generated by the shoulder vibration generating parts 121 and 122 is obliquely in the upward and downward directions, the comfort effect generated by the above-mentioned vibration will be more easily felt at the shoulder side.

[0183] In addition, according to the bathtub device 101 of this embodiment, the direction of the vibration imparted by the buttocks vibration generating units 125, 126, the left vibration generating unit 127 and the right vibration generating unit 128 is also approximately at right angles to the direction of the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111, 112.

[0184] As a result, the user can easily and independently feel the comfort-enhancing effects of both the stimulation caused by the vibrations generated by the vibration generating units 122 to 128 and the stimulation caused by the hot water flow or cold water flow from the hot water flow / cold water flow generating units 111 and 112 .

[0185] In addition, according to the bathtub device 101 of this embodiment, the foot vibration generating parts 123 and 124 are also arranged on the foot side wall surface 102b of the bathtub 102, and the foot vibration generating parts 123 and 124 and the hot water flow / cold water flow generating parts 111 and 112 are arranged at positions offset in the height direction.

[0186] As a result, it is easy to independently feel the comfort effects of both the stimulation brought by the vibration from the foot vibration generating parts 123 and 124 and the stimulation brought by the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 111 and 112.

[0187] (Implementation Example 2-1: Arrangement Structure)

[0188] Next, the 2-1st embodiment of the present invention will be described with reference to the accompanying drawings. Figures 1 to 7 The bathtub device 1 according to the 1-1 embodiment of the present invention described above has the same arrangement structure.

[0189] (Embodiment 2-1: Control Structure)

[0190] In this embodiment, the hydraulic pressure stimulation caused by the vibrations imparted by the vibration generating units 21 to 28 and the hydraulic pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 do not interfere with each other.

[0191] These settings can be achieved by adjusting the supply timing of the electrical signals driving the vibration generating units 21 to 28 and the electrical signals driving the hot water flow / cold water flow generating units 11 and 12 (especially the electrical signals supplied to the built-in motors for spraying hot water or cold water).

[0192] The "water pressure stimulation" used as an index for adjusting these signals is evaluated (measured) by, for example, the aforementioned <water pressure stimulation measurement method>. Furthermore, for example, the vibration intensity described in paragraphs 0098 to 0106 can be adjusted in advance.

[0193] The driving of the hot water flow / cold water flow generating units 11, 12, the selection of the output intensity (strong, medium, weak) of the hot water flow / cold water flow generating units 11, 12, the driving of each of the vibration generating units 21 to 28, etc. are controlled by the control unit 35, for example, based on the input operation from the bather via the remote control operating unit 30.

[0194] Here, the control unit 35 of the present embodiment is configured to link the operations of the hot water flow / cold water flow generating units 11 and 12 and the operations of the vibration generating units 21 to 28 (mutually relate to each other).

[0195] Specifically, the control unit 35 can be set to the simultaneous motion blocking mode (1) based on the input operation from the bather via the remote control operation unit 30, for example. Fig.10As shown, the control unit 35 is configured so that, in the simultaneous operation blocking mode (1), if the hot water flow / cold water flow generating units 11 and 12 are in operation, the vibration generating units 21 to 28 are not started, and if the vibration generating units 21 to 28 are in operation, the hot water flow / cold water flow generating units 11 and 12 are not started. More specifically, the control unit 35 is configured so that, in the simultaneous operation blocking mode (1), when the hot water flow / cold water flow generating units 11 and 12 are in operation, when an instruction to start the operation of the vibration generating units 21 to 28 is received, the vibration generating units 21 to 28 are started after the operation of the hot water flow / cold water flow generating units 11 and 12 is completed, and when the instruction to start the operation of the hot water flow / cold water flow generating units 11 and 12 is received, the operation of the hot water flow / cold water flow generating units 11 and 12 is started after the operation of the vibration generating units 21 to 28 is completed.

[0196] In this way, it is possible to reliably prevent the actions of the hot water flow / cold water flow generating parts 11, 12 and the actions of the vibration generating parts 21 to 28 from interfering with each other, while achieving operation that respects the bather's operation content (the intention to use the hot water flow / cold water flow generating parts 11, 12 or the vibration generating parts 21 to 28).

[0197] Here, regarding the termination of the action of the hot water flow / cold water flow generating units 11, 12 or the vibration generating units 21 to 28, for example, when the function in operation is a function that continues to operate for a pre-selected time, the action can be terminated after waiting for the selected time to pass, or the action can be terminated immediately after receiving the timing of the operation content that intends to use the function that is not in operation, such as issuing a message sound of "in order to implement the vibration function, stop the water spray function", or information can be visually conveyed to the user by using a display unit, etc. instead of using sound.

[0198] And, if Fig.10 As shown, the control unit 35 is configured so that in the simultaneous action blocking mode (1), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started within a specified time after the action of the hot water flow / cold water flow generating units 11, 12 is completed.

[0199] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the hot / cold water flow generating units 11 and 12 remains, the change from water flow stimulation to vibration stimulation can be made with less discomfort to the user.

[0200] In the present embodiment, the predetermined time is set to a time corresponding to 75% of the time required for the hot water flow or cold water flow remaining in the bathtub 2 to disappear after the operation of the hot water flow / cold water flow generating units 11 and 12 is completed.

[0201] As a result, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0202] In the present embodiment, the time required until the hot water flow or cold water flow remaining in the bathtub 2 disappears after the operation of the hot water flow / cold water flow generating units 11 and 12 is completed is about 25 seconds when the hot water flow / cold water flow generating units 11 and 12 are driven at "strong output", about 20 seconds when the hot water flow / cold water flow generating units 11 and 12 are driven at "medium output", and about 15 seconds when the hot water flow / cold water flow generating units 11 and 12 are driven at "weak output". In the present embodiment, the state in which the hot water flow or cold water flow remaining in the bathtub 2 disappears is, for example, the state in which the shaking of the water surface of the hot water accumulated in the bathtub 2 disappears.

[0203] If about Fig.10 To explain in detail, when the operation start instruction of the vibration generating units 21 to 28 is received (YES in STEP11), it is determined whether the hot water flow / cold water flow generating units 11 and 12 are in operation (STEP12). Moreover, when the hot water flow / cold water flow generating units 11 and 12 are in operation (YES in STEP12), the operation of the hot water flow / cold water flow generating units 11 and 12 is waited to be completed (STEP13), and the operation of the vibration generating units is started within a prescribed time from the completion of the operation (STEP14). If the hot water flow / cold water flow generating units 11 and 12 are not in operation (NO in STEP12), the operation of the vibration generating units 21 to 28 is immediately started (STEP15).

[0204] Roughly symmetrically, when the operation start instruction of the hot water flow / cold water flow generating units 11 and 12 is received (YES in STEP21), it is determined whether the vibration generating units 21 to 28 are in operation (STEP22). Furthermore, when the vibration generating units 21 to 28 are in operation (YES in STEP22), the operation of the hot water flow / cold water flow generating units 11 and 12 is started after waiting for the operation of the vibration generating units 21 to 28 to be completed (STEP23). If the vibration generating units 21 to 28 are not in operation (NO in STEP22), the operation of the hot water flow / cold water flow generating units 11 and 12 is started immediately (STEP24).

[0205] Furthermore, the control unit 35 of the present embodiment can be set to the simultaneous operation permission mode based on, for example, an input operation from the bather via the remote controller operation unit 30. Fig.11 As shown, the control unit 35 is configured such that in the simultaneous action permission mode, when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started after the output intensity of the hot water flow / cold water flow generating units 11, 12 is forcibly switched to "weak output", and when an instruction to start the action of the hot water flow / cold water flow generating units 11, 12 is received during the action of the vibration generating units 21 to 28, the action of the hot water flow / cold water flow generating units 11, 12 is started after the output intensity of the hot water flow / cold water flow generating units 11, 12 is forcibly switched to "weak output".

[0206] This can reliably prevent the hot water flow / cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 from having too strong an influence and making it impossible to feel the effect of the vibration generated by the vibration generating units 21 to 28 .

[0207] If about Fig.11 To explain in detail, when the operation start instruction of the vibration generating units 21 to 28 is received (YES in STEP31), it is determined whether the hot water flow / cold water flow generating units 11 and 12 are in operation (STEP32). Furthermore, when the hot water flow / cold water flow generating units 11 and 12 are in operation (YES in STEP32), it is determined whether the output intensity of the hot water flow / cold water flow generating units 11 and 12 is other than "weak" or "weak" (STEP33). Furthermore, when the output intensity of the hot water flow / cold water flow generating units 11 and 12 is other than "weak" (YES in STEP33), the output intensity of the hot water flow / cold water flow generating units 11 and 12 is forcibly switched to "weak" (STEP34), and the operation of the vibration generating units 21 to 28 is started (STEP35). If the hot water flow / cold water flow generating units 11 and 12 are not in operation (NO in STEP32), the operation of the vibration generating units 21 to 28 is immediately started (STEP35). In addition, even if the output intensity of the hot water flow / cold water flow generating units 11 and 12 is "weak" (NO in STEP33), the operation of the vibration generating units 21 to 28 is immediately started (STEP35).

[0208] Symmetrically, when the operation start instruction of the hot water flow / cold water flow generating unit 11, 12 is received (YES in STEP41), it is determined whether the vibration generating units 21 to 28 are in operation (STEP42). Furthermore, when the vibration generating units 21 to 28 are in operation (YES in STEP42), it is determined whether the output intensity (selection) of the hot water flow / cold water flow generating unit 11, 12 is other than "weak" or "weak" (STEP43). Furthermore, when the output intensity (selection) of the hot water flow / cold water flow generating unit 11, 12 is other than "weak" (YES in STEP43), the output intensity of the hot water flow / cold water flow generating unit 11, 12 is forcibly switched to "weak" (STEP44), and the operation of the hot water flow / cold water flow generating unit 11, 12 is started (STEP45). If the vibration generating units 21 to 28 are not in operation (NO in STEP 42), the operation of the hot water flow / cold water flow generating units 11 and 12 is immediately started (STEP 45). In addition, even if the output intensity of the hot water flow / cold water flow generating units 11 and 12 is "weak" (NO in STEP 43), the operation of the hot water flow / cold water flow generating units 11 and 12 is immediately started (STEP 45).

[0209] (Embodiment 2-1: Function and Effect)

[0210] According to the bathtub device 1 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather in a manner as if penetrating into the inside of the body (muscles, etc.) through the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11 and 12, and on the other hand, a delicate water pressure stimulation caused by the vibration from the vibration generating parts 21 to 28 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather. In particular, the action of the hot water flow / cold water flow generating part and the action of the vibration generating part are linked (interrelated), thereby further improving the delicate sense of comfort for the bather.

[0211] In addition, according to the bathtub device 1 of the present embodiment, the control unit 35 can be set to the simultaneous action blocking mode (1), and the control unit 35 is configured such that, in the simultaneous action blocking mode (1), if the hot water flow / cold water flow generating units 11, 12 are in action, the vibration generating units 21 to 28 are not started, and if the vibration generating units 21 to 28 are in action, the hot water flow / cold water flow generating units 11, 12 are not started.

[0212] This reliably prevents the operations of the hot water flow / cold water flow generating units 11 and 12 and the operations of the vibration generating units 21 to 28 from interfering with each other.

[0213] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 is configured so that, in the simultaneous action blocking mode (1), when a command to start the action of the vibration generating units 21 to 28 is received during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started after the action of the hot water flow / cold water flow generating units 11, 12 is completed, and when a command to start the action of the hot water flow / cold water flow generating units 11, 12 is received during the action of the vibration generating units 21 to 28, the action of the hot water flow / cold water flow generating units 11, 12 is started after the action of the vibration generating units 21 to 28 is completed.

[0214] In this way, it is possible to reliably prevent the actions of the hot water flow / cold water flow generating parts 11, 12 and the actions of the vibration generating parts 21 to 28 from interfering with each other, while achieving operation that respects the bather's operation content (the intention to use the hot water flow / cold water flow generating parts 11, 12 or the vibration generating parts 21 to 28).

[0215] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 is configured so that, in the simultaneous action blocking mode (1), when receiving an instruction to start the action of the vibration generating units 21 to 28 during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started within a specified time after the action of the hot water flow / cold water flow generating units 11, 12 is completed.

[0216] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the hot / cold water flow generating units 11 and 12 remains, the change from water flow stimulation to vibration stimulation can be made with less discomfort to the user.

[0217] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 can be set to a simultaneous action permission mode, and the control unit 35 is configured such that, in the simultaneous action permission mode, when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started after the output intensity of the hot water flow / cold water flow generating units 11, 12 is forcibly switched to "weak output", and when an instruction to start the action of the hot water flow / cold water flow generating units 11, 12 is received during the action of the vibration generating units 21 to 28, the action of the hot water flow / cold water flow generating units 11, 12 is started after the output intensity of the hot water flow / cold water flow generating units 11, 12 is forcibly switched to "weak output".

[0218] This can reliably prevent the hot water flow / cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 from having too strong an influence and making it impossible to feel the effect of the vibration generated by the vibration generating units 21 to 28 .

[0219] In addition, in the present embodiment, when the hot water flow / cold water flow generating unit 11, 12 receives an instruction to start the operation of the vibration generating unit 21-28, the output intensity of the hot water flow / cold water flow generating unit 11, 12 is forcibly switched to "weak output" and then the operation of the vibration generating unit 21-28 is started. When the hot water flow / cold water flow generating unit 11, 12 receives an instruction to start the operation of the vibration generating unit 21-28, the output intensity of the hot water flow / cold water flow generating unit 11, 12 is forcibly switched to "weak output" and then the operation of the vibration generating unit 21-28 is started. For example, when the hot water flow / cold water flow generating units 11, 12 receive an instruction to start the operation of the vibration generating units 21 to 28, a water flow with an output intensity smaller than that of the "weak output" may be generated; or when the vibration generating units 21 to 28 receive an instruction to start the operation of the hot water flow / cold water flow generating units 11, 12, a water flow with an output intensity smaller than that of the "weak output" may be generated.

[0220] (Implementation 3-1: Configuration)

[0221] Next, the 3-1st embodiment of the present invention will be described with reference to the accompanying drawings. Figures 1 to 7 The arrangement structures of the bathtub devices 1 according to the 1-1 embodiment and the 2-1 embodiment of the present invention described above are substantially the same.

[0222] However, in this embodiment, if Fig.12 As shown, the bottom surface position of the slit-shaped water jet flow generating portion 13 extending in the left-right direction is positioned at a predetermined height position (for example, a height position of 500 mm from the bottom surface) of the dorsal side wall surface 2a corresponding to the position above the shoulders of the bather (including the back side of the head).

[0223] The slit-shaped water jet flow generating portion 13 extending in the left-right direction is a device mechanism installed in the TOTO product already on the market under the name of "Kangaraku-yu". It is a device mechanism that generates a water jet flow from above the hot water surface or cold water surface of the hot water or cold water accumulated in the bathtub 2 by violently supplying hot water or cold water into the bathtub 2. In the dorsal side wall surface 2a, it is visually recognized as a slit-shaped area with a length of 440 mm in the left-right direction and an opening height of 2 mm.

[0224] On the left side wall surface 2c of the bathtub 2, at two predetermined positions (for example, at a height of 90 mm from the bottom surface of the bathtub 2, and at a position 170 mm from the lower end of the back side wall surface 2a, and at a position 780 mm from the lower end of the back side wall surface 2a, water suction ports 9a, 9b for circulating water to the hot water flow / cold water flow generating parts 11, 12 and the water jet flow generating part 13 are provided. The water suction ports 9a, 9b are annular element components with an outer diameter of 82 mm and a protruding height (thickness) of 14 mm into the bathtub.

[0225] In addition, Fig.12 In FIG. 1 , the bottom surface water landing position of the bottom surface of the bathtub 2 is recorded in addition, assuming that hot water or cold water is not stored in the bathtub 2 .

[0226] (Embodiment 3-1: Control Structure)

[0227] The control structure of the bathtub device according to the embodiment 3-1 of the present invention and the reference Figure 8 The control structure of the bathtub device 1 according to the 1-1 embodiment of the present invention described above is the same.

[0228] (Implementation 3-1: Control Structure (2))

[0229] Furthermore, in the present embodiment, when the water jet flow generating unit 13 is driven at the "strong output", assuming that no hot water or cold water is stored in the bathtub 2, the water jet generated by the water jet flow generating unit 13 is caused to hit the bottom surface of the bathtub 2 at a predetermined bottom surface impact position (e.g., a position 400 mm from the lower end of the back side wall surface 2a on the foot side). Therefore, the vibration generating units 21 to 22, 25 to 28 of the present embodiment are arranged on the back side in the front-back direction relative to the bottom surface impact position when the water jet flow generating unit 13 is driven at the "strong output".

[0230] Furthermore, in the present embodiment, when the water jet flow generating unit 13 is driven at the "strong output", the water jet generated by the water jet flow generating unit 13 impinges on the hot water surface or the cold water surface at a predetermined hot water surface / cold water surface impingement position (for example, a position hanging down (projected) to the bottom surface of the bathtub 2 from the lower end of the back side wall surface 2a at a distance of 200 mm from the foot side) in a state where hot water or cold water is accumulated in the bathtub 2 (the recommended standard water surface height is, for example, 350 mm). Therefore, the vibration generating units 21-22, 25-28 of the present embodiment are arranged on the back side in the front-back direction compared to the hot water surface / cold water surface impingement position when the water jet flow generating unit 13 is driven at the "strong output".

[0231] In the same manner, in the present embodiment, when the water jet flow generating unit 13 is driven at the "middle output", assuming that no hot water or cold water is stored in the bathtub 2, the water jet generated by the water jet flow generating unit 13 is caused to hit the bottom surface of the bathtub 2 at a predetermined bottom surface impact position (e.g., a position 300 mm from the lower end of the back side wall surface 2a on the foot side). Therefore, the vibration generating units 21 to 22, 25 to 28 of the present embodiment are arranged on the back side in the front-back direction relative to the bottom surface impact position when the water jet flow generating unit 13 is driven at the "middle output".

[0232] Furthermore, in the present embodiment, when the water jet flow generating unit 13 is driven at the "middle output", the water jet generated by the water jet flow generating unit 13 impinges on the hot water surface or the cold water surface at a predetermined hot water surface / cold water surface impingement position (for example, a position hanging down (projected) to the bottom surface of the bathtub 2 from the lower end of the back side wall surface 2a at a distance of 150 mm from the foot side). Therefore, the vibration generating units 21 to 22, 25 to 28 of the present embodiment are arranged on the back side in the front-back direction compared to the hot water surface / cold water surface impingement position when the water jet flow generating unit 13 is driven at the "middle output".

[0233] On the other hand, in the present embodiment, when the water jet flow generating unit 13 is driven at "weak output", assuming that there is no hot or cold water in the bathtub 2, the water jet generated by the water jet flow generating unit 13 is impacted on the bottom surface of the bathtub 2 at a predetermined bottom surface impaction position (e.g., a position 250 mm from the lower end of the back side wall surface 2a on the foot side). (Therefore, the vibration generating units 25 to 28 of the present embodiment cannot be said to be arranged on the back side relative to the bottom surface impaction position when the water jet flow generating unit 13 is driven at "weak output".)

[0234] Furthermore, in the present embodiment, when the water jet flow generating unit 13 is driven at a "weak output", the water jet generated by the water jet flow generating unit 13 impinges on the hot water surface or the cold water surface at a predetermined hot water surface / cold water surface impingement position (e.g., a position 100 mm from the lower end of the back side wall surface 2a to the foot side at a position hanging down (projected) to the bottom surface of the bathtub 2). (Therefore, the vibration generating units 25 to 28 of the present embodiment cannot be said to be arranged on the back side relative to the hot water surface / cold water surface impingement position when the water jet flow generating unit 13 is driven at a "weak output".)

[0235] In addition, when the water flow generating unit 13 is in the "strong output", 65 liters of hot water / cold water are sprayed out every minute, when the water flow generating unit 13 is in the "medium output", 55 liters of hot water / cold water are sprayed out every minute, and when the water flow generating unit 13 is in the "weak output", 49 liters of hot water / cold water are sprayed out every minute.

[0236] (Implementation Example 3-1: Function and Effect)

[0237] According to the bathtub device 1 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather by the water jet from the water jet generating unit 13 in a manner as if penetrating into the inside of the body (especially the muscles around the head and shoulders, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating units 21 to 28 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather.

[0238] In addition, according to the bathtub device 1 of the present embodiment, the water jet generated by the water jet generating unit 13 driven by the "strong output" or "medium output" impinges on a predetermined bottom surface impingement position on the bottom surface of the bathtub 2, assuming that no hot water or cold water is accumulated in the bathtub 2, and the vibration generating units 21 to 22, 25 to 28 are arranged on the dorsal side in the front-to-back direction compared to the predetermined bottom surface impingement position.

[0239] This effectively reduces the situation in which the water pressure stimulation caused by the vibrations imparted by the vibration generating units 21 to 22 and 25 to 28 is hindered by the water jet flow generated by the water jet flow generating unit 13.

[0240] Furthermore, according to the bathtub device 1 of the present embodiment, the water jet generated by the water jet generating unit 13 driven by the "strong output" or "medium output" impinges on a specified hot water surface / cold water surface impingement position of the hot water surface or the cold water surface when hot water or cold water is accumulated in the bathtub 2, and the vibration generating units 21 to 22, 25 to 28 are arranged on the dorsal side in the front-to-back direction compared to the specified hot water surface / cold water surface impingement position.

[0241] This more effectively reduces the situation in which the water pressure stimulation caused by the vibrations imparted by the vibration generating units 21 to 22 and 25 to 28 is hindered by the water jet flow generated by the water jet flow generating unit 13.

[0242] In addition, the vibration generating parts 25 to 28 of the present embodiment cannot be said to be arranged on the back side relative to the bottom surface water-impacting position or even the hot water surface / cold water surface water-impacting position when the water jet generating part 13 is driven with "weak output". However, the degree to which the water jet generated by the water jet generating part 13 when driven with "weak output" impinges on the hot water surface or the cold water surface in front of the bather (foot side) and causes turbulence inside the hot water or cold water in the bathtub 2 is relatively small. Therefore, when the water jet generating part 13 is driven with "weak output", the vibration generated by the vibration generating parts 21 to 22 and 25 to 28 can be fully felt by the bather.

[0243] Furthermore, the foot vibration generating parts 23, 24 of the present embodiment are not arranged on the dorsal side relative to the bottom surface water impact position of the water jet generating part 13 or even the hot water surface / cold water surface impact position, but the vibrations generated by the foot vibration generating parts 23, 24 act on the feet of the bather at a position sufficiently far away from the bottom surface water impact position of the water jet generating part 13 or even the hot water surface / cold water surface impact position, and can therefore be fully felt by the bather.

[0244] In addition, according to the bathtub device 1 of the present embodiment, the maximum value of the water pressure stimulation in the bathtub 2 caused by the vibrations imparted by the vibration generating units 21 to 28 is adjusted to be smaller than the maximum value of the water pressure stimulation in the bathtub 2 caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11 and 12.

[0245] This more reliably prevents the vibrations generated by the vibration generators 21 to 28 from hindering the action of the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 .

[0246] In addition, according to the bathtub device 1 of the present embodiment, at a specified position set in the bathtub 2 (for example, a position corresponding to the body surface of a bather seated during bathing), the water pressure stimulation caused by the vibration imparted by the vibration generating units 21 to 28 is adjusted to be smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 11, 12.

[0247] This effectively suppresses excessive stimulation (which may cause discomfort) to the skin of the bather.

[0248] According to the bathtub device 1 of this embodiment, the hot water flow / cold water flow generating parts 11 and 12 are arranged on the back wall surface 2 a of the bathtub 2 , and the shoulder vibration generating parts 21 and 22 are also arranged on the back wall surface 2 a of the bathtub 2 .

[0249] As a result, the bather can easily feel the comfort-improving effects of both the stimulation by the vibration and the stimulation by the hot water flow or the cold water flow on the back side of the body where the bather is easily stimulated.

[0250] Furthermore, according to the bathtub device 1 of the present embodiment, the shoulder vibration generating parts 21 and 22 are arranged above the hot water flow / cold water flow generating parts 11 and 12 .

[0251] The hot water flow / cold water flow generating parts 11, 12 are arranged on the dorsal side wall surface 2a of the bathtub 2. It is expected that the body posture of the bather's shoulder side is close to the dorsal side wall surface 2a of the bathtub 2 due to the water force of the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11, 12. As a result, since the shoulder vibration generating parts 21, 22 are arranged in the area of ​​the dorsal side wall surface close to the shoulder side as described above, the comfort effect generated by the vibration of the shoulder vibration generating parts 21, 22 is more easily felt at the shoulder side.

[0252] Furthermore, according to the bathtub device 1 of the present embodiment, the back side wall surface portion 2a of the bathtub 2 where the shoulder vibration generating parts 21 and 22 are arranged is inclined.

[0253] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 2a of the bathtub 2, the dorsal side wall surface 2a of the bathtub 2 is inclined so that the dorsal side wall surface 2a is along the bather's body. Since the shoulder vibration generating parts 21 and 22 are arranged here, it is easier to feel the comfort effect generated by the vibration of the shoulder vibration generating parts 21 and 22.

[0254] Furthermore, according to the bathtub device 1 of the present embodiment, the direction of the vibrations applied by the shoulder vibration generating parts 21 and 22 is the oblique up-and-down direction.

[0255] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 2a of the bathtub 2, if the direction of the vibration generated by the shoulder vibration generating parts 21 and 22 is obliquely in the upward and downward directions, the comfort effect generated by the above-mentioned vibration will be more easily felt at the shoulder side.

[0256] In addition, according to the bathtub device 1 of this embodiment, the direction of the vibration imparted by the buttocks vibration generating parts 25, 26, the left vibration generating part 27 and the right vibration generating part 28 is substantially at right angles to the direction of the hot water flow or cold water flow generated by the hot water flow / cold water flow generating parts 11, 12.

[0257] As a result, the users can easily and independently feel the comfort-enhancing effects of both the stimulation caused by the vibrations generated by the vibration generating units 22 to 28 and the stimulation caused by the hot water flow or cold water flow from the hot water flow / cold water flow generating units 11 and 12 .

[0258] According to the bathtub device 1 of this embodiment, the foot vibration generators 23 and 24 are arranged on the foot side wall surface 2 b of the bathtub 2 , and the foot vibration generators 23 and 24 and the hot water flow / cold water flow generators 11 and 12 are arranged at positions offset in the height direction.

[0259] As a result, it is easy to independently feel the comfort effects of both the stimulation brought by the vibration from the foot vibration generating parts 23 and 24 and the stimulation brought by the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11 and 12.

[0260] Here, the foot vibration generating parts 23, 24 and the hot water flow / cold water flow generating parts 11, 12 are replaced by offsets in the height direction, or, on this basis, offsets in the left and right directions are also suitable (for example, a left and right pair of foot vibration generating parts 23, 24 are arranged symmetrically in the bathtub 2, and their respective center axes can be separated from each other by 250 mm).

[0261] (Implementation 3-2: Configuration)

[0262] Next, the 3-2nd embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 9 The arrangement structures of the bathtub devices 101 according to the first and second embodiments of the present invention described above are substantially the same.

[0263] However, in this embodiment, if Fig.13 As shown, the bottom surface position of the slit-shaped water jet generating portion 113 extending in the left-right direction is positioned at a specified height position (for example, a height position of 500 mm from the bottom surface) of a pillow-shaped raised area of ​​the dorsal side wall surface 102a corresponding to the position above the shoulders of the bather (including the back side of the head).

[0264] The slit-shaped water jet flow generating portion 113 extending in the left-right direction is a device mechanism for generating a water jet flow from above the hot water surface or the cold water surface of the hot water or cold water accumulated in the bathtub 102 by violently supplying hot water or cold water into the bathtub 102. In the dorsal side wall surface 102a, it is visually recognized as a slightly curved slit-shaped area with a left-right length of 250 mm and an opening height of 2 mm.

[0265] A water inlet 109 for circulating water to the hot water flow / cold water flow generating section 111, 112 and the water jet flow generating section 113 is provided at a predetermined position (e.g., a height position of 180 mm from the bottom surface of the bathtub 102 and a central position in the left-right direction) on the foot side wall surface 102b of the bathtub 102. The water inlet 109 is an annular element component having an outer diameter of 90 mm and a protruding height (thickness) of 12 mm into the bathtub.

[0266] In addition, Fig.13 In FIG. 1 , the bottom surface water landing position of the bottom surface of the bathtub 102 is recorded assuming that no hot water or cold water is accumulated in the bathtub 102 .

[0267] (3-2nd embodiment: control structure)

[0268] The control structure of the bathtub device according to the 3-2 embodiment of the present invention is the same as the control structure of the bathtub device 101 according to the 1-2 embodiment of the present invention.

[0269] (Implementation 3-2: Control Structure (2))

[0270] Furthermore, in the present embodiment, when the water jet flow generating unit 113 is driven at the "strong output", assuming that no hot water or cold water is stored in the bathtub 102, the water jet flow generated by the water jet flow generating unit 113 impinges on the bottom surface of the bathtub 102 at a predetermined bottom surface impingement position (e.g., a position 300 mm from the lower end of the back side wall surface 102a on the foot side). Therefore, the vibration generating units 121 to 122, 125 to 128 of the present embodiment are arranged on the back side in the front-back direction relative to the bottom surface impingement position when the water jet flow generating unit 113 is driven at the "strong output".

[0271] Furthermore, in the present embodiment, when the water jet flow generating unit 113 is driven at the "strong output", the water jet generated by the water jet flow generating unit 113 impinges on the hot water surface or the cold water surface at a predetermined hot water surface / cold water surface impingement position (for example, a position hanging down (projected) to the bottom surface of the bathtub 102 from the lower end of the back side wall surface 102a at a distance of 150 mm from the foot side) in a state where hot water or cold water is accumulated in the bathtub 102 (the recommended standard water surface height is, for example, 210 mm). Therefore, the vibration generating units 121-122, 125-128 of the present embodiment are arranged on the back side in the front-back direction compared to the hot water surface / cold water surface impingement position when the water jet flow generating unit 113 is driven at the "strong output".

[0272] In the same manner, in the present embodiment, when the water jet flow generating unit 113 is driven at the "middle output", assuming that no hot water or cold water is stored in the bathtub 102, the water jet generated by the water jet flow generating unit 113 is configured to hit the bottom surface of the bathtub 102 at a predetermined bottom surface impact position (e.g., a position 240 mm from the lower end of the back side wall surface 102a on the foot side). Therefore, the vibration generating units 121 to 122, 125 to 128 of the present embodiment are arranged on the back side in the front-back direction relative to the bottom surface impact position when the water jet flow generating unit 113 is driven at the "middle output".

[0273] Furthermore, in the present embodiment, when the water jet generating unit 113 is driven at the "medium output", the water jet generated by the water jet generating unit 113 impinges on the hot water surface or the cold water surface at a predetermined hot water surface / cold water surface impingement position (for example, a position hanging down (projected) to the bottom surface of the bathtub 102 from the lower end of the back side wall surface 102a and 120 mm closer to the foot side). Therefore, the vibration generating units 121-122, 127-128 of the present embodiment are arranged on the back side in the front-to-back direction compared to the hot water surface / cold water surface impingement position when the water jet generating unit 113 is driven at the "medium output". (The vibration generating units 125-126 of the present embodiment cannot be said to be arranged on the back side relative to the hot water surface / cold water surface impingement position when the water jet generating unit 113 is driven at the "medium output".)

[0274] On the other hand, in the present embodiment, when the water jet flow generating unit 113 is driven at "weak output", assuming that no hot water or cold water is stored in the bathtub 102, the water jet generated by the water jet flow generating unit 113 is impacted on the bottom surface of the bathtub 102 at a predetermined bottom surface impaction position (e.g., a position 180 mm from the lower end of the back side wall surface 102a on the foot side). (Therefore, the vibration generating units 125 to 128 of the present embodiment cannot be said to be arranged on the back side relative to the bottom surface impaction position when the water jet flow generating unit 113 is driven at "weak output".)

[0275] Furthermore, in the present embodiment, when the water jet flow generating unit 113 is driven at the "weak output", the water jet generated by the water jet flow generating unit 113 impinges on the hot water surface or the cold water surface at a predetermined hot water surface / cold water surface impingement position (e.g., a position hanging down (projected) to the bottom surface of the bathtub 102 from the lower end of the back side wall surface 102a at a distance of 90 mm from the foot side). (Therefore, the vibration generating units 125 to 128 of the present embodiment cannot be said to be arranged on the back side relative to the hot water surface / cold water surface impingement position when the water jet flow generating unit 113 is driven at the "weak output".)

[0276] (3-2nd embodiment: effect)

[0277] According to the bathtub device 101 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather by the water jet from the water jet generating unit 113 in a manner as if penetrating into the inside of the body (especially the muscles around the head and shoulders, etc.), and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating units 121 to 128 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather.

[0278] In addition, according to the bathtub device 101 of the present embodiment, the water jet generated by the water jet generating unit 113 driven by the "strong output" or "medium output" impinges on a specified bottom surface impingement position of the bottom surface of the bathtub 102, assuming that no hot water or cold water is accumulated in the bathtub 102, and the vibration generating units 121 to 122, 125 to 128 are arranged on the dorsal side in the front-to-back direction compared to the specified bottom surface impingement position.

[0279] This effectively reduces the situation in which the water pressure stimulation caused by the vibration imparted by the vibration generating units 121 to 122 and 125 to 128 is hindered by the water jet flow generated by the water jet flow generating unit 113.

[0280] Furthermore, according to the bathtub device 101 of the present embodiment, the water jet generated by the water jet generating unit 113 driven by the "strong output" impinges on a specified hot water surface / cold water surface impingement position of the hot water surface or the cold water surface when hot water or cold water is accumulated in the bathtub 102, and the vibration generating units 121 to 122, 125 to 128 are arranged on the dorsal side compared to the specified hot water surface / cold water surface impingement position in the front-to-back direction.

[0281] As a result, the situation in which the water pressure stimulation caused by the vibration imparted by the vibration generating units 121 to 122 and 125 to 28 is hindered by the water jet flow generated by the water jet flow generating unit 113 is more effectively reduced.

[0282] In addition, the vibration generating units 125 to 128 of the present embodiment cannot be said to be arranged on the back side relative to the bottom surface water-impacting position or even the hot water surface / cold water surface water-impacting position when the water jet generating unit 113 is driven at "weak output". However, the degree to which the water jet generated by the water jet generating unit 113 during "weak output" driving impinges on the hot water surface or the cold water surface at the front side (foot side) of the bather and causes turbulence inside the hot water or cold water in the bathtub 102 is relatively small. Therefore, when the water jet generating unit 113 is driven at "weak output", the vibration generated by the vibration generating units 121 to 122 and 125 to 128 can be fully felt by the bather.

[0283] Furthermore, the foot vibration generating parts 123, 124 of the present embodiment are not arranged on the dorsal side relative to the bottom surface water impact position of the water jet generating part 113 or even the hot water surface / cold water surface impact position, but the vibrations generated by the foot vibration generating parts 123, 124 act on the feet of the bather at a position sufficiently far away from the bottom surface water impact position of the water jet generating part 113 or even the hot water surface / cold water surface impact position, and can therefore be fully felt by the bather.

[0284] In addition, according to the bathtub device 101 of this embodiment, the maximum value of the water pressure stimulation in the bathtub 102 caused by the vibration imparted by the vibration generating units 121 to 128 is adjusted to be smaller than the maximum value of the water pressure stimulation in the bathtub 102 caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111 and 112.

[0285] This more reliably prevents the vibrations generated by the vibration generators 121 to 128 from hindering the action of the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating units 111 and 112 .

[0286] In addition, according to the bathtub device 101 of the present embodiment, the water pressure stimulation caused by the vibration imparted by the vibration generating units 121 to 128 at a specified position set in the bathtub 102 (for example, a position corresponding to the body surface of a bather sitting in the bath) is adjusted to be smaller than the water pressure stimulation caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111, 112.

[0287] This effectively suppresses excessive stimulation (which may cause discomfort) to the skin of the bather.

[0288] In addition, according to the bathtub device 101 of this embodiment, the hot water flow / cold water flow generating parts 111 and 112 are also arranged on the back side wall surface 102a of the bathtub 102, and the shoulder vibration generating parts 121 and 122 are also arranged on the back side wall surface 102a of the bathtub 102.

[0289] As a result, the bather can easily feel the comfort-improving effects of both the stimulation by the vibration and the stimulation by the hot water flow or the cold water flow on the back side of the body where the bather is easily stimulated.

[0290] Furthermore, according to the bathtub device 101 of the present embodiment, the shoulder vibration generating parts 121 and 122 are also arranged above the hot water flow / cold water flow generating parts 111 and 112 .

[0291] The dorsal side wall surface 102a of the bathtub 102 is provided with hot water flow / cold water flow generating parts 111, 112, and it is expected that the body posture of the bather's shoulder side is close to the dorsal side wall surface 102a of the bathtub 102 due to the water force of the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 111, 112. As a result, since the shoulder vibration generating parts 121, 122 are arranged in the area of ​​the dorsal side wall surface close to the shoulder side as described above, the comfort effect generated by the vibration of the shoulder vibration generating parts 121, 122 is more easily felt at the shoulder side.

[0292] Furthermore, according to the bathtub device 101 of the present embodiment, the back side wall surface 102a of the bathtub 102 where the shoulder vibration generating parts 121 and 122 are arranged is also inclined.

[0293] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 102a of the bathtub 102, the dorsal side wall surface 102a of the bathtub 102 is inclined so that the dorsal side wall surface 102a is along the bather's body. Since the shoulder vibration generating parts 121 and 122 are arranged here, it is easier to feel the comfort effect generated by the vibration of the shoulder vibration generating parts 121 and 122.

[0294] Furthermore, according to the bathtub device 101 of the present embodiment, the direction of the vibrations imparted by the shoulder vibration generating parts 121 and 122 is also the oblique vertical direction.

[0295] When the bather's shoulder side is in a body posture close to the dorsal side wall surface 102a of the bathtub 102, if the direction of the vibration generated by the shoulder vibration generating parts 121 and 122 is obliquely in the upward and downward directions, the comfort effect generated by the above-mentioned vibration will be more easily felt at the shoulder side.

[0296] In addition, according to the bathtub device 101 of this embodiment, the direction of the vibration imparted by the buttocks vibration generating units 125, 126, the left vibration generating unit 127 and the right vibration generating unit 128 is also approximately at right angles to the direction of the hot water flow or cold water flow generated by the hot water flow / cold water flow generating units 111, 112.

[0297] As a result, the user can easily and independently feel the comfort-enhancing effects of both the stimulation caused by the vibrations generated by the vibration generating units 122 to 128 and the stimulation caused by the hot water flow or cold water flow from the hot water flow / cold water flow generating units 111 and 112 .

[0298] In addition, according to the bathtub device 101 of this embodiment, the foot vibration generating parts 123 and 124 are also arranged on the foot side wall surface 102b of the bathtub 102, and the foot vibration generating parts 123 and 124 and the hot water flow / cold water flow generating parts 111 and 112 are arranged at positions offset in the height direction.

[0299] As a result, it is easy to independently feel the comfort effects of both the stimulation brought by the vibration from the foot vibration generating parts 123 and 124 and the stimulation brought by the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 111 and 112.

[0300] Here, the foot vibration generating parts 123, 124 and the hot water flow / cold water flow generating parts 111, 112 are replaced by offsets in the height direction, or, on this basis, offsets in the left and right directions are also suitable (for example, a left and right pair of foot vibration generating parts 123, 124 are arranged symmetrically in the bathtub 102, and their respective center axes can be separated from each other by 250 mm).

[0301] (Implementation 4-1: Configuration)

[0302] Embodiment 4-1 of the present invention will be described below with reference to the drawings. The arrangement structure of the bathtub device according to Embodiment 4-1 of the present invention is also substantially the same as the arrangement structure of the bathtub device 1 according to Embodiments 1-1, 2-1, and 3-1 of the present invention.

[0303] (Embodiment 4-1: Control Structure)

[0304] The control structure of the bathtub device according to the 4-1 embodiment of the present invention is the same as the control structure of the bathtub device according to the 2-1 embodiment and the 3-1 embodiment of the present invention.

[0305] (Implementation 4-1: Control Structure (3))

[0306] Furthermore, in the present embodiment, the water pressure stimulation by the vibrations imparted by the vibration generating units 21 to 28 and the water pressure stimulation by the hot water flow or cold water flow generated by the water jet flow generating unit 13 do not interfere with each other.

[0307] These settings can be achieved by adjusting the supply timing of the electric signal driving each of the vibration generating units 21 to 28 and the electric signal driving the water jet generating unit 13 (especially the electric signal supplied to the built-in motor for spraying hot or cold water).

[0308] In detail, the driving of the water jet generating unit 13, the selection of the output intensity of the water jet generating unit 13 (strong, medium, weak), the driving of each of the vibration generating units 21 to 28, etc. are controlled by the control unit 35 based on, for example, the input operation from the bather via the remote control operating unit 30. As a result, the control unit 35 of this embodiment links the operation of the water jet generating unit 13 and the operation of the vibration generating units 21 to 28 (interrelated).

[0309] Specifically, the control unit 35 can be set to the simultaneous motion blocking mode (2) based on the input operation from the bather through the remote control operation unit 30, for example. Fig.14 As shown, the control unit 35 is configured so that, in the simultaneous operation blocking mode (2), if the water jet flow generating unit 13 is in operation, the vibration generating units 21 to 28 are not started, and if the vibration generating units 21 to 28 are in operation, the water jet flow generating unit 13 is not started. More specifically, the control unit 35 is configured so that, in the simultaneous operation blocking mode (2), when the water jet flow generating unit 13 receives an instruction to start the operation of the vibration generating units 21 to 28, the vibration generating units 21 to 28 are started after the operation of the water jet flow generating unit 13 is completed, and when the vibration generating units 21 to 28 receive an instruction to start the operation of the water jet flow generating unit 13, the water jet flow generating unit 13 is started after the operation of the vibration generating units 21 to 28 is completed.

[0310] In this way, it is possible to reliably prevent the movement of the water jet generating unit 13 and the movement of the vibration generating units 21 to 28 from interfering with each other, while achieving operation that respects the bather's operation content (the intention to use the water jet generating unit 13 or the vibration generating units 21 to 28).

[0311] Here, regarding the termination of the action of the water jet generating unit 13 or the vibration generating units 21 to 28, for example, when the function in operation is a function that continues to operate for a pre-selected time, the action can be terminated after waiting for the selected time to pass, or the action can be terminated immediately after receiving an operation content that indicates a desire to use a function that is not in operation, such as issuing a message sound such as "In order to implement the vibration function, stop the water jet function." Information can also be conveyed visually to the user by using a display unit, etc., without using sound.

[0312] And, if Fig.14 As shown, the control unit 35 is configured so that in the simultaneous action blocking mode (2), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the water jet flow generating unit 13, the action of the vibration generating units 21 to 28 is started within a specified time after the action of the water jet flow generating unit 13 is completed.

[0313] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the water jet flow generating unit 13 remains, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0314] In the present embodiment, the predetermined time is set to a time corresponding to 75% of the time required for the hot water flow or the cold water flow remaining in the bathtub 2 to disappear after the operation of the water jet flow generating unit 13 is completed.

[0315] As a result, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0316] In addition, in the case of the present embodiment, the time required for the hot water flow or cold water flow remaining in the bathtub 2 to disappear after the operation of the water jet flow generating unit 13 is completed is approximately 25 seconds when the water jet flow generating unit 13 is driven with a "strong output", approximately 20 seconds when the water jet flow generating unit 13 is driven with a "medium output", and approximately 15 seconds when the water jet flow generating unit 13 is driven with a "weak output".

[0317] If about Fig.14 To explain in detail, when the operation start instruction of the vibration generating units 21 to 28 is received (YES in STEP51), it is determined whether the water jet generating unit 13 is in operation (STEP52). Furthermore, when the water jet generating unit 13 is in operation (YES in STEP52), the operation of the water jet generating unit 13 is waited to be completed (STEP53), and the operation of the vibration generating unit is started within a prescribed time from the completion of the operation (STEP54). If the water jet generating unit 13 is not in operation (NO in STEP52), the operation of the vibration generating units 21 to 28 is immediately started (STEP55).

[0318] In a roughly symmetrical manner, when the water jet flow generating unit 13 receives the operation start instruction (YES in STEP61), it is determined whether the vibration generating units 21 to 28 are in operation (STEP62). Furthermore, when the vibration generating units 21 to 28 are in operation (YES in STEP62), the operation of the water jet flow generating unit 13 is started after the operation of the vibration generating units 21 to 28 is completed (STEP63). If the vibration generating units 21 to 28 are not in operation (NO in STEP62), the operation of the water jet flow generating unit 13 is started immediately (STEP64).

[0319] Furthermore, the control unit 35 of this embodiment can be set to the simultaneous motion permission mode (2) based on the input operation from the bather through the remote control operation unit 30, for example. Fig.15As shown, the control unit 35 is constructed so that in the simultaneous action allowing mode (2), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the water jet generating unit 13, the action of the vibration generating units 21 to 28 is started after the output intensity of the water jet generating unit 13 is forcibly switched to "weak output", and when an instruction to start the action of the water jet generating unit 13 is received during the action of the vibration generating units 21 to 28, the action of the water jet generating unit 13 is started after the output intensity of the water jet generating unit 13 is forcibly switched to "weak output".

[0320] This can reliably prevent the situation in which the effect of the hot water flow / cold water flow generated by the water jet flow generating unit 13 becomes too strong and the effect of the vibration generated by the vibration generating units 21 to 28 cannot be felt.

[0321] If about Fig.15 To explain in detail, when the operation start instruction of the vibration generating units 21 to 28 is received (YES in STEP71), it is determined whether the water jet generating unit 13 is in operation (STEP72). Furthermore, when the water jet generating unit 13 is in operation (YES in STEP72), it is determined whether the output intensity of the water jet generating unit 13 is other than "weak" or "weak" (STEP73). Furthermore, when the output intensity of the water jet generating unit 13 is other than "weak" (YES in STEP73), the output intensity of the water jet generating unit 13 is forcibly switched to "weak" (STEP74), and the operation of the vibration generating units 21 to 28 is started (STEP75). If the water jet generating unit 13 is not in operation (NO in STEP72), the operation of the vibration generating units 21 to 28 is immediately started (STEP75). Even if the output intensity of the water jet flow generating unit 13 is "weak" (NO in STEP 73), the operation of the vibration generating units 21 to 28 is immediately started (STEP 75).

[0322] Symmetrically, when the water jet flow generating unit 13 receives the operation start instruction (YES in STEP81), it is determined whether the vibration generating units 21 to 28 are in operation (STEP82). Furthermore, when the vibration generating units 21 to 28 are in operation (YES in STEP82), it is determined whether the output intensity (selection) of the water jet flow generating unit 13 is other than "weak" or "weak" (STEP83). Furthermore, when the output intensity (selection) of the water jet flow generating unit 13 is other than "weak" (YES in STEP83), the output intensity of the water jet flow generating unit 13 is forcibly switched to "weak" (STEP84), and the operation of the water jet flow generating unit 13 is started (STEP85). If the vibration generating units 21 to 28 are not in operation (NO in STEP82), the operation of the water jet flow generating unit 13 is immediately started (STEP85). Even if the output intensity of the water jet flow generating unit 13 is "weak" (NO in STEP 83), the operation of the water jet flow generating unit 13 is immediately started (STEP 85).

[0323] (Embodiment 4-1: Function and Effect (1))

[0324] According to the bathtub device 1 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather in a manner as if penetrating into the inside of the body (muscles, etc.) through the hot water flow or cold water flow from the hot water flow / cold water flow generating parts 11 and 12, and on the other hand, a delicate water pressure stimulation caused by the vibration from the vibration generating parts 21 to 28 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather. In particular, the action of the hot water flow / cold water flow generating part and the action of the vibration generating part are linked (interrelated), thereby further improving the delicate sense of comfort for the bather.

[0325] In addition, according to the bathtub device 1 of the present embodiment, the control unit 35 can be set to the simultaneous action blocking mode (1), and the control unit 35 is configured such that, in the simultaneous action blocking mode (1), if the hot water flow / cold water flow generating units 11, 12 are in action, the vibration generating units 21 to 28 are not started, and if the vibration generating units 21 to 28 are in action, the hot water flow / cold water flow generating units 11, 12 are not started.

[0326] This reliably prevents the operations of the hot water flow / cold water flow generating units 11 and 12 and the operations of the vibration generating units 21 to 28 from interfering with each other.

[0327] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 is configured so that, in the simultaneous action blocking mode (1), when a command to start the action of the vibration generating units 21 to 28 is received during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started after the action of the hot water flow / cold water flow generating units 11, 12 is completed, and when a command to start the action of the hot water flow / cold water flow generating units 11, 12 is received during the action of the vibration generating units 21 to 28, the action of the hot water flow / cold water flow generating units 11, 12 is started after the action of the vibration generating units 21 to 28 is completed.

[0328] In this way, it is possible to reliably prevent the actions of the hot water flow / cold water flow generating parts 11, 12 and the actions of the vibration generating parts 21 to 28 from interfering with each other, while achieving operation that respects the bather's operation content (the intention to use the hot water flow / cold water flow generating parts 11, 12 or the vibration generating parts 21 to 28).

[0329] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 is configured so that, in the simultaneous action blocking mode (1), when receiving an instruction to start the action of the vibration generating units 21 to 28 during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started within a specified time after the action of the hot water flow / cold water flow generating units 11, 12 is completed.

[0330] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the hot / cold water flow generating units 11 and 12 remains, the change from water flow stimulation to vibration stimulation can be made with less discomfort to the user.

[0331] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 can be set to the simultaneous action permission mode (1), and the control unit 35 is configured such that in the simultaneous action permission mode (1), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the hot water flow / cold water flow generating units 11, 12, the action of the vibration generating units 21 to 28 is started after the output intensity of the hot water flow / cold water flow generating units 11, 12 is forcibly switched to "weak output", and when an instruction to start the action of the hot water flow / cold water flow generating units 11, 12 is received during the action of the vibration generating units 21 to 28, the action of the hot water flow / cold water flow generating units 11, 12 is started after the output intensity of the hot water flow / cold water flow generating units 11, 12 is forcibly switched to "weak output".

[0332] This can reliably prevent the hot water flow / cold water flow generated by the hot water flow / cold water flow generating units 11 and 12 from having too strong an influence and making it impossible to feel the effect of the vibration generated by the vibration generating units 21 to 28 .

[0333] In addition, in the present embodiment, when the hot water flow / cold water flow generating unit 11, 12 receives an instruction to start the operation of the vibration generating unit 21-28, the output intensity of the hot water flow / cold water flow generating unit 11, 12 is forcibly switched to "weak output" and then the operation of the vibration generating unit 21-28 is started. When the hot water flow / cold water flow generating unit 11, 12 receives an instruction to start the operation of the vibration generating unit 21-28, the output intensity of the hot water flow / cold water flow generating unit 11, 12 is forcibly switched to "weak output" and then the operation of the vibration generating unit 21-28 is started. For example, when the hot water flow / cold water flow generating units 11, 12 receive an instruction to start the operation of the vibration generating units 21 to 28, a water flow with an output intensity smaller than that of the "weak output" may be generated; or when the vibration generating units 21 to 28 receive an instruction to start the operation of the hot water flow / cold water flow generating units 11, 12, a water flow with an output intensity smaller than that of the "weak output" may be generated.

[0334] (Embodiment 4-1: Function and Effect (2))

[0335] In addition, according to the bathtub device 1 of the present embodiment described above, a relatively strong water pressure stimulation can be given to the bather in a manner as if it penetrates into the inside of the body (especially the muscles around the head and shoulders, etc.) through the water jet from the water jet generating unit 13, and on the other hand, a delicate water pressure stimulation caused by the vibration generated by the vibration generating units 21 to 28 can be given centered on the surface of the body (skin, etc.). Thus, a delicate sense of comfort can be provided to the bather. In particular, the action of the water jet generating unit 13 and the action of the vibration generating units 21 to 28 are linked (interrelated), thereby further improving the delicate sense of comfort for the bather.

[0336] In addition, according to the bathtub device 1 of the present embodiment, the control unit 35 can be set to the simultaneous action blocking mode (2), and the control unit 35 is configured such that, in the simultaneous action blocking mode (2), if the water jet flow generating unit 13 is in action, the vibration generating units 21 to 28 will not be started, and if the vibration generating units 21 to 28 are in action, the water jet flow generating unit 13 will not be started.

[0337] This reliably prevents the operation of the water jet flow generating unit 13 and the operation of the vibration generating units 21 to 28 from interfering with each other.

[0338] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 is configured so that, in the simultaneous action blocking mode (2), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the water jet flow generating unit 13, the action of the vibration generating units 21 to 28 is started after the action of the water jet flow generating unit 13 is completed, and when an instruction to start the action of the water jet flow generating unit 13 is received during the action of the vibration generating units 21 to 28, the action of the water jet flow generating unit 13 is started after the action of the vibration generating units 21 to 28 is completed.

[0339] In this way, it is possible to reliably prevent the movement of the water jet generating unit 13 and the movement of the vibration generating units 21 to 28 from interfering with each other, while achieving operation that respects the bather's operation content (the intention to use the water jet generating unit 13 or the vibration generating units 21 to 28).

[0340] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 is configured so that, in the simultaneous action blocking mode (2), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the water jet flow generating unit 13, the action of the vibration generating units 21 to 28 is started within a specified time after the action of the water jet flow generating unit 13 is completed.

[0341] Thus, since vibration is performed within a predetermined time while the aftereffect of the water flow generated by the water jet flow generating unit 13 remains, it is possible to change from water flow stimulation to vibration stimulation with less discomfort to the user.

[0342] Furthermore, according to the bathtub device 1 of the present embodiment, the control unit 35 can be set to the simultaneous action permission mode (2), and the control unit 35 is configured such that in the simultaneous action permission mode (2), when an instruction to start the action of the vibration generating units 21 to 28 is received during the action of the water jet flow generating unit 13, the action of the vibration generating units 21 to 28 is started after the output intensity of the water jet flow generating unit 13 is forcibly switched to "weak output", and when an instruction to start the action of the water jet flow generating unit 13 is received during the action of the vibration generating units 21 to 28, the action of the water jet flow generating unit 13 is started after the output intensity of the water jet flow generating unit 13 is forcibly switched to "weak output".

[0343] This can reliably prevent the situation in which the effect of the hot water flow / cold water flow generated by the water jet flow generating unit 13 becomes too strong and the effect of the vibration generated by the vibration generating units 21 to 28 cannot be felt.

[0344] In addition, in the present embodiment, when an instruction to start the operation of the vibration generating units 21 to 28 is received during the operation of the water jet generating unit 13, the output intensity of the water jet generating unit 13 is forcibly switched to "weak output" and the operation of the vibration generating units 21 to 28 is started. When an instruction to start the operation of the water jet generating unit 13 is received during the operation of the vibration generating units 21 to 28, the output intensity of the water jet generating unit 13 is forcibly switched to "weak output" and the operation of the water jet generating unit 13 is started. However, this is not limited to the above. For example, when an instruction to start the operation of the vibration generating units 21 to 28 is received during the operation of the water jet generating unit 13, a water flow having an output intensity smaller than that of the "weak output" may be generated. Alternatively, when an instruction to start the operation of the water jet generating unit 13 is received during the operation of the vibration generating units 21 to 28, the output intensity of the water jet generating unit 13 may be switched to a water flow having an output intensity smaller than that of the "weak output".

[0345] (Implementation No. 5-1: Configuration)

[0346] Embodiment 5-1 of the present invention will be described below with reference to the drawings. The arrangement structure of the bathtub device according to Embodiment 5-1 of the present invention is also substantially the same as the arrangement structure of the bathtub device 1 according to Embodiments 1-1, 2-1, 3-1, and 4-1 of the present invention.

[0347] (Embodiment 5-1: Control Structure)

[0348] The control structure of the bathtub device according to the 5-1 embodiment of the present invention is the same as the control structure of the bathtub device 1 according to the 1-1 embodiment and the 3-1 embodiment of the present invention.

[0349] However, in this embodiment, the propagation direction of the vibration generated by at least a part of the vibration generating parts 21 to 28 is aligned with the traveling direction of the hot water flow or the cold water flow (see Figure 2 and Figure 3 ) are approximately orthogonal.

[0350] In addition, according to the bathtub device 1 of the present embodiment, the propagation direction of the vibrations generated by the vibration generating parts 21 to 24, 27 to 28 is approximately orthogonal to the traveling direction of the water jet when it is ejected from the jet outlet of the water jet generating part 13 (an example of "intersecting") when viewed from above or from the side, thereby effectively preventing the water pressure stimulation caused by the vibrations generated by the vibration generating parts 21 to 24, 27 to 28 from being obstructed by the water jet.

[0351] Furthermore, regarding the bathtub device 1 of this embodiment, the propagation direction of the vibration generated by the vibration generating parts 21 to 24, 27 to 28 is approximately orthogonal to the traveling direction of the water jet flow when the water hits the hot water surface or the cold water surface. Therefore, it can also be evaluated that the water pressure stimulation caused by the vibration generated by the vibration generating parts 21 to 24, 27 to 28 can be effectively suppressed from being hindered by the water jet flow.

[0352] Here, the propagation direction of the vibration generated by the buttocks vibration generating parts 25, 26 is only at an angle of approximately 40° to the traveling direction of the water jet flow when impinging on the hot water surface or the cold water surface. However, the vibration generated by the buttocks vibration generating parts 25, 26 acts on the buttocks of the bather at a position sufficiently away from the hot water surface / cold water surface impingement position of the water jet flow generating part 13, and can therefore be fully felt by the bather.

[0353] In addition, according to the bathtub device 1 of this embodiment, the propagation direction of the vibration generated by the vibration generating parts 21 to 28 and the traveling direction of the hot water flow or the cold water flow form an angle greater than or equal to 45 degrees. Therefore, it is possible to effectively prevent the water pressure stimulation caused by the vibration generated by the vibration generating parts 21 to 28 from being hindered by the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating parts 11 and 12.

[0354] Description of the label

[0355] 1 Bathtub device (1-1 embodiment, 2-1 embodiment, 3-1 embodiment, 4-1 embodiment, 5-1 embodiment)

[0356] 2 Bathtubs

[0357] 2a Dorsal side wall face

[0358] 2b Side wall of foot and face

[0359] 2c Left side wall

[0360] 2d Right side wall face

[0361] 9a, 9b water inlet

[0362] 11, 12 hot water flow / cold water flow generating part

[0363] 21, 22 shoulder vibration generating unit

[0364] Vibration generating unit for pins 23 and 24

[0365] 25, 26 Vibration generating part for buttocks

[0366] 27 Left vibration generating unit

[0367] 28 Right vibration generating unit

[0368] 30 Remote control operation unit

[0369] 35 Control Department

[0370] 101 Bathtub Device (1-2 Embodiment, 3-2 Embodiment)

[0371] 102 Bathtub

[0372] 102a Dorsal side wall face

[0373] 102b side wall of foot

[0374] 102c Left side wall

[0375] 102d Right side face

[0376] 109 Water Inlet

[0377] 111, 112 hot water flow / cold water flow generating unit

[0378] Vibration generating unit for pins 123 and 124

[0379] 125, 126 Vibration generating part for buttocks

[0380] 127 Left vibration generating unit

[0381] 128 right vibration generating unit

[0382] 130 Remote control operation unit

[0383] 135 Control Department

Claims

1. A bathtub device, characterized in that: have: Bathtubs, which can hold hot or cold water; a hot water flow / cold water flow generating unit provided in the bathtub, which generates a hot water flow or a cold water flow inside the hot water or cold water accumulated in the bathtub by supplying hot water or cold water into the bathtub; and The vibration generator is provided in the bathtub and vibrates the hot water or cold water stored in the bathtub without supplying the hot water or cold water into the bathtub.

2. The bathtub device according to claim 1, characterized in that: The maximum value of the water pressure stimulation in the bathtub caused by the vibration imparted by the vibration generating unit is smaller than the maximum value of the water pressure stimulation in the bathtub caused by the hot water flow or cold water flow generated by the hot water flow / cold water flow generating unit.

3. The bathtub device according to claim 1, characterized in that: At a predetermined position set in the bathtub, the water pressure stimulation caused by the vibration imparted by the vibration generating unit is smaller than the water pressure stimulation caused by the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating unit.

4. The bathtub device according to claim 1, characterized in that: The hot water flow / cold water flow generating portion is arranged on the back side wall surface of the bathtub. The vibration generating unit is also disposed on the back side wall surface of the bathtub.

5. The bathtub device according to claim 1, characterized in that: The direction of the vibration imparted by the vibration generating unit is substantially at right angles to the direction of the hot water flow or the cold water flow generated by the hot water flow / cold water flow generating unit.

6. The bathtub device according to claim 1, characterized in that: The vibration generating part is arranged on the foot side wall surface of the bathtub, The vibration generating unit and the hot water flow / cold water flow generating unit are arranged at positions offset in the height direction and / or the left-right direction.

7. The bathtub device according to claim 1, characterized in that: A control unit is further provided, which links the operation of the hot water flow / cold water flow generating unit and the operation of the vibration generating unit.

8. The bathtub device according to claim 1, characterized in that: A water jet flow generating unit is also provided, which is arranged above the bathtub and generates a water jet flow by supplying hot water or cold water into the bathtub from above the hot water surface or cold water surface of the hot water or cold water accumulated in the bathtub.

9. The bathtub device according to claim 8, characterized in that: A control unit is further provided, which links the operation of the water jet flow generating unit and the operation of the vibration generating unit.

10. The bathtub device according to claim 8, characterized in that: The water jet flow generating unit generates a water jet flow by supplying hot water or cold water into the bathtub from a jet outlet provided above a hot water surface or a cold water surface of the hot water or cold water stored in the bathtub. The structure is such that, in a plan view or a side view, a propagation direction of the vibration generated by the vibration generating portion and a traveling direction of the jet flow when the water is ejected from the ejection port intersect with each other.

11. The bathtub device according to claim 1, characterized in that: The structure is such that, when viewed from above or from the side, a propagation direction of the vibration generated by the vibration generating unit intersects with a traveling direction of the hot water flow or the cold water flow.

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