JP6984267B2 - Bathtub device - Google Patents

Description

Aspects of the invention generally relate to bathtub devices.

A bathtub device that circulates bathtub water by pumping bathtub water from a suction port provided inside the bathtub with a single pump and discharging water from the first spouting section and the second spouting section into the bathtub. It is known (for example, Patent Document 1).

The first water spouting unit discharges hot water toward the waist of the bather, for example. The second water spouting unit discharges hot water toward the shoulder or neck of the bather, for example. By spouting hot water toward the body of the bather in this way, for example, a massage effect can be imparted to the body of the bather, and a relaxation effect at the time of bathing can be enhanced.

In such a bathtub device, bathtub water is guided from a suction port to a common headrace via a water supply channel and one pump, and this common headrace branches into a first headrace and a second headrace. .. The first water discharge unit sprays the bathtub water supplied from the first water guide unit toward the waist of the bather or the like. The second water discharge unit discharges the bathtub water supplied from the second water guide unit to the shoulders and neck of the bather.

However, in the configuration as described above, when the suction port is clogged with a foreign substance such as hair, the amount of water discharged from the water discharge portion may be significantly reduced and the water discharge may be stopped. In addition, the negative pressure in the common headrace increases, which may make it difficult to remove foreign matter.

Therefore, in the bathtub device, even if the suction port is clogged, it is desired that the water discharge does not stop and the clogging of the suction port can be easily cleared to improve the usability.

Japanese Unexamined Patent Publication No. 2016-7344

The present invention has been made based on the recognition of such a problem, and provides an easy-to-use bathtub device that can easily clear the clogging of the suction port without stopping the water discharge even when the suction port is clogged. The purpose is.

The first invention is a basin device provided in a tub for storing hot water, from a first and second water discharge portions for discharging hot water into the tub, and a first suction port provided in the tub. A first flow path for supplying hot water to the first water discharge section, a second flow path for supplying hot water from the second suction port provided in the bathtub to the second water discharge section, and the first flow path. A pump provided on the path of the flow path, sucking hot water in the bathtub from the first suction port and supplying it to the downstream side, and between the first water discharge portion and the pump from the first flow path. A jet pump unit provided on the branched branch path and the path of the second flow path and connected to the pump via the branch path, and contains hot water supplied from the second suction port inside. A water storage unit that can store water, a suction pipe that sucks hot water stored in the water storage unit and supplies it to the second water discharge unit, and hot water stored in the water storage unit are sucked into the suction pipe by a jet pump action. A jet pump unit having an injection unit for injecting hot water supplied from the pump into the suction pipe, the first flow path on the upstream side of the pump, and the jet pump unit. When the first suction port is clogged by connecting to the second flow path on the upstream side, the amount of hot water supplied from the first suction port to the pump is larger than the amount of hot water supplied from the second suction port. The bathtub device is provided with a bypass flow path that constantly communicates the first flow path and the second flow path so that the amount of hot water supplied to the pump is larger.

According to this bathtub device, even if the suction flow rate from the first suction port is reduced due to the clogging of the first suction port with foreign matter such as hair or dust, the first from the second flow path via the bypass flow path. Hot water can be supplied to the flow path. Further, even when the second suction port is clogged, hot water can be supplied from the first flow path to the jet pump unit and the second water discharge portion via the branch path. Therefore, even when the first suction port or the second suction port is clogged, the negative pressure in the first flow path or the second flow path is suppressed from increasing, and the first suction port or the second suction port is clogged. It is possible to easily remove foreign matter. Furthermore, even when the first suction port or the second suction port is clogged, water discharge from at least one of the first water discharge unit and the second water discharge unit can be continued without stopping the pump. As described above, even if the first suction port or the second suction port is clogged, the bathtub device is easy to use and can easily clear the clogging of the first suction port or the second suction port without stopping the water discharge. can do. Further, it is not necessary to provide a negative pressure detecting means for detecting the negative pressure, and the device itself can be made compact and has an inexpensive configuration.

Further, in this bathtub device, a jet pump unit (flow rate amplification technology utilizing the phenomenon of entraining the fluid around the jet jet) for amplifying the discharge water flow rate is provided on the path of the second flow path. As a result, the space behind the bathtub (the space between the bathtub and the wall surface of the bathroom) required for installing the bathtub device is compared with the case where the pump is provided on each of the first flow path and the second flow path. Can be suppressed. In other words, it is possible to prevent the space where the bather enters the bathtub and takes a bath from becoming narrow due to the installation of the bathtub device. For example, when spouting water from each of the first spouting section and the second spouting section at the same time while saving the installation space, a sufficient spouting flow rate is provided in each of the first spouting section and the second spouting section. Obtainable.

In the second invention, in the first invention, the pressure loss of the hot water passing through the bypass flow path passes through the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path. The bath device is characterized in that the first flow path and the bypass flow path are configured so as to be larger than the pressure loss of the hot water.

According to this bathtub device, the pressure loss of hot water passing through the bypass flow path is larger than the pressure loss of hot water passing through the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path. As described above, since the first flow path and the bypass flow path are configured, the pump provided on the path of the first flow path is normally used when the first suction port and the second suction port are not clogged. A large amount of hot water is sucked from the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path having a smaller pressure loss than the bypass flow path. Therefore, when the first suction port and the second suction port are not clogged, a large amount of hot water is supplied from the first suction port to the pump provided on the path of the first flow path from the second suction port. It is possible to suppress the creation of such situations. Therefore, in a normal time when the first suction port and the second suction port are not clogged, the hot water sucked from the second suction port can be supplied to the jet pump unit and stably discharged from the second water discharge portion. can.

In the third aspect of the invention, in the second invention, the minimum flow path cross-sectional area of the bypass flow path is the minimum of the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path. It is a bathtub device characterized by being smaller than the cross-sectional area of the flow path of.

According to this bathtub device, the pressure loss on the bypass flow path side can be surely made larger than the pressure loss on the first flow path side with a simple configuration.

In the fourth aspect of the invention, in any one of the first to third aspects, the pressure loss of the hot water passing through the bypass flow path is on the upstream side of the confluence position with the bypass flow path in the second flow path. It is a bathing device characterized in that the second flow path and the bypass flow path are configured so as to be larger than the pressure loss of hot water passing through the second flow path.

According to this tub device, the pressure loss of hot water passing through the bypass flow path is larger than the pressure loss of hot water passing through the second flow path on the upstream side of the confluence position with the bypass flow path in the second flow path. As described above, since the second flow path and the bypass flow path are configured, the hot water sucked from the second suction port is pumped in the normal time when the first suction port and the second suction port are not clogged. Even if it is sucked to the bypass flow path side, the pressure loss in the bypass flow path becomes large, so that at least a part of the hot water sucked from the second suction port is suppressed from being supplied to the bypass flow path side. be able to. Therefore, the suction of the pump provided on the path of the first flow path does not flow into the bypass flow path from the hot water passing upstream from the confluence position with the bypass flow path in the second flow path from the second suction port. Hot water can be reliably supplied to the jet pump unit by the jet action of the jet pump unit. Therefore, in a normal time when the first suction port and the second suction port are not clogged, the hot water sucked from the second suction port can be supplied to the jet pump unit and stably discharged from the second water discharge portion. can.

In the fifth aspect of the invention, in the fourth aspect, the minimum flow path cross-sectional area of the bypass flow path is the minimum of the second flow path on the upstream side of the confluence position with the bypass flow path in the second flow path. It is a bathtub device characterized by being smaller than the cross-sectional area of the flow path of.

According to this bathtub device, the pressure loss on the bypass flow path side can be surely made larger than the pressure loss on the second flow path side with a simple configuration.

A sixth invention is a basin device provided in a tub for storing hot water, from a first and second spouting portions for discharging hot water into the tub, and a first suction port provided in the tub. A first flow path for supplying hot water to the first water discharge section, a second flow path for supplying hot water from the second suction port provided in the bathtub to the second water discharge section, and the first flow path. A first pump provided on the path of the flow path, which sucks hot water in the bathtub from the first suction port and supplies it to the downstream side, and a first pump provided on the path of the second flow path, in the bathtub. A second pump that sucks hot water from the second suction port and supplies it to the downstream side, the first flow path on the upstream side of the first pump, and the second flow on the upstream side of the second pump. When the first suction port is clogged by connecting to the road, the amount of hot water supplied from the first suction port to the first pump is larger than the amount of hot water supplied from the second suction port to the first pump. When the amount of hot water to be pumped is larger and the second suction port is clogged, the amount of hot water supplied from the second suction port to the second pump is larger than the amount of hot water supplied from the first suction port to the first. 2 The bathtub device is provided with a bypass flow path that constantly communicates the first flow path and the second flow path so that the amount of hot water supplied to the pump is larger. ..

According to this bathtub device, even if the suction flow rate from the first suction port is reduced due to the clogging of the first suction port with foreign matter such as hair or dust, the first from the second flow path via the bypass flow path. Hot water can be supplied to the flow path. Similarly, when the second suction port is clogged, hot water can be supplied from the first flow path to the second flow path via the bypass flow path. Therefore, even when the first suction port or the second suction port is clogged, the negative pressure in the first flow path or the second flow path is suppressed from increasing, and the first suction port or the second suction port is clogged. It is possible to easily remove foreign matter. Furthermore, even when the first suction port or the second suction port is clogged, water discharge from at least one of the first water discharge unit and the second water discharge unit can be continued without stopping the pump. As described above, even if the first suction port or the second suction port is clogged, the bathtub device is easy to use and can easily clear the clogging of the first suction port or the second suction port without stopping the water discharge. can do. Further, it is not necessary to provide a negative pressure detecting means for detecting the negative pressure, and the device itself can be made compact and has an inexpensive configuration.

A seventh aspect of the invention is characterized in that, in any one of the first to sixth aspects, the second suction port is provided at a position laterally displaced with respect to the first suction port. It is a bathtub device.

According to this bathing device, by horizontally shifting the first suction port and the second suction port, for example, when the bather's hair is long, the hair hanging down due to gravity is used as the first suction port and the second suction port. It is possible to prevent the suction port from being blocked at the same time.

In the eighth aspect of the invention, in the seventh aspect, the inner wall surface of the bathtub has a backrest surface that supports the back of the bather, and one of the first suction port and the second suction port is of the bathtub. It is provided behind the center in the front-rear direction with respect to the backrest surface, and the other of the first suction port and the second suction port is more than the center in the front-rear direction with respect to the backrest surface of the bathtub. It is a bathtub device characterized by being provided on the front side.

According to this bathing device, one of the first suction port and the second suction port is arranged on the head side of the bather whose back is in contact with the backrest surface, and the other of the first suction port and the second suction port. Is placed on the leg side of the bather with his back in contact with the backrest surface. As a result, it is possible to more reliably prevent the first suction port and the second suction port from being blocked by the hair of the bather or the like at the same time.

According to the aspect of the present invention, there is provided an easy-to-use bathtub device that can easily clear the clogging of the suction port without stopping the water discharge even when the suction port is clogged.

It is a perspective view which shows typically the bathtub and the bathtub apparatus which concerns on embodiment. It is a top view schematically showing the bathtub and the bathtub apparatus which concerns on embodiment. It is a block diagram which shows typically the bathtub and the bathtub apparatus which concerns on embodiment. It is a block diagram which shows a part of the bathtub apparatus which concerns on embodiment. It is a perspective view which shows typically the 1st suction part which concerns on embodiment. It is a block diagram schematically showing the modification of the bathtub apparatus which concerns on embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In each drawing, similar components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate.
FIG. 1 is a perspective view schematically showing a bathtub and a bathtub device according to an embodiment.
FIG. 2 is a plan view schematically showing the bathtub and the bathtub device according to the embodiment.
As shown in FIGS. 1 and 2, the bathtub device 10 is provided in the bathtub 100 for storing hot water. The bathtub device 10 is used in a state of being attached to the bathtub 100.

The bathtub 100 includes a bathtub body 102. The bathtub body 102 has an inner wall surface 104. The inner wall surface 104 has a backrest surface 106 that supports the back of the bather. Here, in the present specification, the upper part is referred to as "upper", the lower part is referred to as "lower", the front is referred to as "front", and the rear is referred to as "rear" when viewed from the bather whose back is in contact with the backrest surface 106. , The right side is "right side" and the left side is "left side".

FIG. 3 is a block diagram schematically showing a bathtub and a bathtub device according to an embodiment.
FIG. 4 is a block diagram schematically showing a part of the bathtub device according to the embodiment.
As shown in FIGS. 1 to 4, the bathtub device 10 includes a first water discharge unit 11, a second water discharge unit 12, a pump 14, a branch path 16, a jet pump unit 18, and a first flow path 21. And a second flow path 22 and a bypass flow path 24. In the bathtub device 10, for example, each part such as the pump 14, the branch path 16, the jet pump unit 18, the first flow path 21, the second flow path 22, and the bypass flow path 24 is a space on the back side of the bathtub body 102 (bathtub). It is provided in the space between the main body 102 and the wall surface of the bathroom).

The first water discharge unit 11 and the second water discharge unit 12 discharge hot water into the bathtub main body 102. Hot water stored in the bathtub main body 102 is supplied to the first water discharge unit 11 and the second water discharge unit 12. The first water discharge unit 11 and the second water discharge unit 12 discharge the supplied hot water into the bathtub main body 102. As a result, the first water discharge unit 11 and the second water discharge unit 12 circulate the hot water stored in the bathtub main body 102.

The first water discharge unit 11 has a first water discharge port 11a for discharging the supplied hot water. The first water discharge portion 11 is provided on the backrest surface 106. The first water discharge portion 11 is attached so as to penetrate the bathtub body 102, for example, at the portion of the backrest surface 106. As a result, the first water discharge unit 11 discharges hot water toward the inside (front) of the bathtub body 102.

The first water discharge unit 11 sprays hot water toward, for example, the waist of a bather whose back is in contact with the backrest surface 106. The first water discharge unit 11 sprays hot water, for example, aiming at the position of the erector spinae muscle, which is the anti-gravity muscle of the bather. As a result, the waist of the bather can be stimulated and the relaxation effect at the time of bathing can be further enhanced.

The bathtub device 10 has two first water discharge units 11. The two first water discharge portions 11 are provided side by side on the backrest surface 106. The number of the first water discharge portions 11 is not limited to two, and may be one or three or more.

The second water discharge portion 12 is provided on the upper end (rim surface) connected to the backrest surface 106. The second water discharge unit 12 is provided above, for example, the first water discharge unit 11. The second water discharge unit 12 discharges hot water toward the inside of the bathtub body 102. That is, the second water discharge unit 12 discharges hot water toward the front. The second water discharge unit 12 discharges hot water toward the neck and shoulders of a bather whose back is in contact with the backrest surface 106, for example. Thereby, for example, the neck and shoulders of the bather can be warmed more, the neck and shoulders of the bather can be given a massage effect, and the relaxation effect at the time of bathing can be further enhanced.

The second spouting portion 12 has a slit-shaped second spouting port 12a extending in the left-right direction. As a result, the second water discharge unit 12 discharges a strip-shaped water flow extending in the left-right direction from the second water discharge port 12a. The length of the second spout 12a in the left-right direction is, for example, 20 cm or more. The left-right length of the second spout 12a is, for example, longer than the average width of the human neck. As a result, hot water can be appropriately applied to the neck and shoulders of the bather whose back is in contact with the backrest surface 106. Further, the length of the second spout 12a in the left-right direction is shorter than, for example, the width of the space inside the bathtub body 102 in the left-right direction. As a result, hot water can be appropriately discharged into the bathtub body 102.

The bathtub device 10 may have, for example, a plurality of second water discharge units 12. For example, it may have a second spouting unit 12 that discharges hot water on the right shoulder of the bather and a second spouting unit 12 that discharges hot water on the left shoulder of the bather.

Further, the second water discharge unit 12 has a light source unit 12b. The light source unit 12b irradiates light toward the front. Thereby, the appearance of the bathtub 100 can be further improved. The light source unit 12b is provided as needed and can be omitted.

Contrary to the above, hot water may be spouted from the first spouting unit 11 toward the shoulder of the bather or the like, and hot water may be spouted from the second spouting unit 12 toward the waist or the like of the bather. Further, the first water discharge unit 11 and the second water discharge unit 12 are not limited to the above, and may be, for example, a water discharge unit provided on the bottom surface portion of the bathtub main body 102 and discharging hot water toward the legs of the bather. The first water discharge unit 11 and the second water discharge unit 12 may be any water discharge unit that discharges hot water toward the inside of the bathtub main body 102.

The bathtub device 10 further includes, for example, a first suction unit 31 and a second suction unit 32 (see FIG. 1). The bathtub body 102 is provided with a through-hole-shaped mounting hole, and the first suction portion 31 and the second suction portion 32 are attached to the mounting hole so as to penetrate the bathtub body 102 in the bathtub body 102. It is attached.

The first suction unit 31 has a first suction port 31a for sucking hot water stored in the bathtub main body 102. The second suction unit 32 has a second suction port 32a for sucking the hot water stored in the bathtub main body 102.

The first suction unit 31 and the second suction unit 32 are provided on the left side surface of the inner wall surface 104 of the bathtub main body 102. As described above, the first suction unit 31 and the second suction unit 32 are provided on the surface of the bathtub main body 102 different from the first water discharge unit 11 and the second water discharge unit 12. The first suction port 31a and the second suction port 32a are provided on different surfaces from the first water discharge unit 11 and the second water discharge unit 12. In other words, the first suction port 31a and the second suction port 32a are provided so as to face different directions from the first spout port 11a and the second spout port 12a. As a result, it is possible to prevent the first suction port 31a and the second suction port 32a from being blocked by the hair of a bather whose back is in contact with the backrest surface 106.

The first suction unit 31 and the second suction unit 32 are not limited to the left side surface, but may be provided on the right side surface of the inner wall surface 104, may be provided on the front surface facing the backrest surface 106, or may be provided on the bottom surface. You may.

The second suction unit 32 is provided at a position displaced horizontally with respect to the first suction unit 31. That is, the second suction port 32a is provided at a position displaced in the horizontal direction with respect to the first suction port 31a. In this example, the second suction port 32a is displaced in the front-rear direction with respect to the first suction port 31a. For example, when the first suction portion 31 and the second suction portion 32 are provided on the front surface, the bottom surface, or the like, the second suction port 32a may be provided at a position shifted in the left-right direction with respect to the first suction port 31a. ..

Further, one of the first suction port 31a and the second suction port 32a is provided on the rear side of the central CL in the front-rear direction. The other of the first suction port 31a and the second suction port 32a is provided on the front side of the central CL in the front-rear direction. In this example, the first suction port 31a is provided on the rear side of the central CL, and the second suction port 32a is provided on the front side of the central CL. On the contrary, the first suction port 31a may be provided on the front side of the central CL, and the second suction port 32a may be provided on the rear side of the central CL.

In this example, the first suction unit 31 and the second suction unit 32 are provided in the bathtub device 10, but the first suction unit 31 and the second suction unit 32 are configured to be attached to the bathtub body 102 itself. May be good.

The first flow path 21 is a flow path for supplying hot water from the first suction port 31a provided in the bathtub main body 102 to the first water discharge portion 11. The second flow path 22 is a flow path for supplying hot water to the second water discharge portion 12 from the second suction port 32a provided in the bathtub main body 102. The first flow path 21 and the second flow path 22 are composed of, for example, a plurality of pipes, a fluid machine, or the like. A fluid machine is any device that allows hot water to pass through, such as a pump or valve.

The first flow path 21 has, for example, a first water supply pipe 33. One end of the first water supply pipe 33 is connected to the first suction port 31a via the first suction portion 31. The other end of the first water supply pipe 33 is connected to the pump 14. As a result, the hot water sucked from the first suction port 31a is supplied to the pump 14 via the first water supply pipe 33.

The second flow path 22 has, for example, a second water supply pipe 34. One end of the second water supply pipe 34 is connected to the second suction port 32a via the second suction portion 32. The other end of the second water supply pipe 34 is connected to the jet pump unit 18. As a result, the hot water sucked from the second suction port 32a is supplied to the jet pump unit 18 via the second water supply pipe 34.

The pump 14 is provided on the path of the first flow path 21. The pump 14 sucks the hot water in the bathtub body 102 from the first suction port 31a and supplies it to the downstream side. The input port of the pump 14 is connected to the first water supply pipe 33. The pump 14 sucks hot water from the first suction port 31a via the first water supply pipe 33. The pump 14 is, for example, an electric pump. For example, the pump 14 sucks the hot water in the bathtub body 102 by the rotation of the impeller (not shown) directly connected to the electrically driven electric motor (not shown), and the sucked hot water is sent to the downstream side. Pump.

The bathtub device 10 further includes, for example, a pipe 40, a switching valve 42, and a pipe 44. One end of the pipe 40 is connected to the output port of the pump 14. The other end of the pipe 40 is connected to the input port of the switching valve 42. The switching valve 42 has one input port and two output ports. The switching valve 42 selectively switches between a state in which hot water supplied from the input port flows to only one output port, a state in which it flows to only the other output port, and a state in which it flows to each of the two output ports. .. The switching valve 42 may be replaced with, for example, a bifurcated pipe that does not have a flow path switching function.

One end of the pipe 44 is connected to one output port of the switching valve 42. The other end of the pipe 44 is connected to the first water discharge portion 11. The other end of the pipe 44 is bifurcated and is connected to each of the two first water discharge portions 11. As a result, the hot water sucked from the first suction port 31a in response to the drive of the pump 14 passes through the first suction unit 31, the first water supply pipe 33, the pump 14, the pipe 40, the switching valve 42, and the pipe 44. It is supplied to each first water discharge unit 11. That is, in this example, the first flow path 21 is formed by the first suction unit 31, the first water supply pipe 33, the pump 14, the pipe 40, the switching valve 42, and the pipe 44. The configuration of the first flow path 21 is not limited to the above, and may be any configuration capable of supplying hot water to the first water discharge unit 11.

The branch path 16 branches from the first flow path 21 between the first water discharge unit 11 and the pump 14. One end of the branch path 16 is connected to the other output port of the switching valve 42. The other end of the branch path 16 is connected to the jet pump unit 18. In other words, the switching valve 42 is provided at the branch portion between the first flow path 21 and the branch path 16. In other words, the switching valve 42 has a path for supplying hot water supplied from the pump 14 only to the first water discharge unit 11, a path for supplying only the second water discharge unit 12, and the first water discharge unit 11 and the second. The route for supplying to both of the water discharge units 12 is selectively switched.

The jet pump unit 18 is provided on the path of the second flow path 22, and is connected to the pump 14 via a branch path 16. In this example, the jet pump unit 18 is provided between the second water discharge unit 12 and the switching valve 42. The jet pump unit 18 is provided, for example, directly below the second water discharge unit 12.

The jet pump unit 18 has a water storage unit 50, a suction pipe 52, and an injection unit 54. The water storage unit 50 has a container shape and can store hot water in the internal space. The water storage unit 50 is connected to the other end of the second water supply pipe 34. As a result, the water storage unit 50 stores the hot water supplied from the second suction port 32a inside. Further, the water storage unit 50 is connected to the switching valve 42 via the branch path 16. The branch road 16 is connected to, for example, the lower part of the water storage unit 50.

The suction pipe 52 is a pipe for sucking the hot water stored in the water storage unit 50. The suction pipe 52 is connected to the upper part of the water storage unit 50, facing the branch path 16, for example. The suction pipe 52 extends upward from the water storage unit 50 and is connected to the second water discharge unit 12. As a result, in this example, the second flow path 22 is formed by the second suction section 32, the second water supply pipe 34, the water storage section 50, and the suction pipe 52. The configuration of the second flow path 22 is not limited to the above, and may be any configuration capable of supplying hot water to the second water discharge unit 12.

The injection unit 54 is provided at the connection portion between the water storage unit 50 and the branch path 16. The injection unit 54 sucks the hot water supplied from the pump 14 via the switching valve 42 and the branch passage 16 into the suction pipe 52 so that the hot water stored in the water storage unit 50 is sucked into the suction pipe 52 by the action of a jet pump. Spray on. As a result, the hot water supplied from the pump 14 is supplied to the second water discharge unit 12, and the hot water supplied from the second suction port 32a and stored in the water storage unit 50 is brought into the suction pipe 52 by the jet pump action. The hot water drawn in and stored in the water storage unit 50 is also supplied to the second water discharge unit 12. As a result, even when the pump 14 is made relatively small, a large flow rate of hot water can be supplied to the second water discharge unit 12. For example, hot water having a flow rate equal to or higher than the flow rate supplied from the pump 14 can be supplied to the second water discharge unit 12.

The bathtub device 10 further includes, for example, a control unit 60 and an operation unit 62. The control unit 60 is connected to the pump 14, the switching valve 42, and the operation unit 62. The operation unit 62 is used by being attached to, for example, a bathtub body 102 or a wall surface of a bathroom. The operation unit 62 has a switch, a sensor, and the like, and can input various operation instructions to the control unit 60 in response to an operation by a bather or the like. The operation unit 62 is a so-called remote controller. The electrical communication between the control unit 60 and the operation unit 62 may be wired or wireless.

The control unit 60 controls the operation of the pump 14 and the switching valve 42 in response to the operation instruction input from the operation unit 62. When the control unit 60 is instructed by the operation unit 62 to discharge hot water from the first water discharge unit 11, the control unit 60 starts driving the pump 14 and switches the switching valve 42 to the first water discharge unit 11 side. Hot water is discharged from the water discharge unit 11.

When the control unit 60 is instructed by the operation unit 62 to inject hot water from the second water discharge unit 12, the control unit 60 starts driving the pump 14 and switches the switching valve 42 to the second water discharge unit 12 side. Hot water is sprayed from the water discharge unit 12.

Further, when the control unit 60 is instructed by the operation unit 62 to simultaneously discharge water from the first water discharge unit 11 and the second water discharge unit 12, the control unit 60 starts driving the pump 14 and sets the switching valve 42 to the first water discharge unit 11 and the first water discharge unit 12. By communicating with both of the second water discharge units 12, hot water is discharged from the first water discharge unit 11 and hot water is ejected from the second water discharge unit 12.

Then, the control unit 60 stops the driving of the pump 14 when instructed to stop the hot water discharge from the first water discharge unit 11 or stop the injection of the hot water from the second water discharge unit 12. Further, the control unit 60 changes the output (driving force) of the pump 14 according to, for example, an operation instruction input from the operation unit 62. The control unit 60 changes the rotation speed of the pump 14, for example. Thereby, the flow rate of the hot water discharged from the first water discharge unit 11 and the second water discharge unit 12 can be changed. For example, the operation mode can be switched such as "weak operation" with a small flow rate, "strong operation" with a larger flow rate than the weak operation, and "medium operation" with a flow rate between the weak operation and the strong operation.

In this way, in the bathtub device 10, by driving the pump 14 and switching the path of the switching valve 42, hot water is discharged only from the first water discharge unit 11 and hot water is discharged only from the second water discharge unit 12. It is possible to switch between a state and a state in which hot water is discharged from both the first water discharge unit 11 and the second water discharge unit 12 at the same time. Further, the control unit 60 is connected to the light source unit 12b. The control unit 60 switches on and off the light source unit 12b according to the operation instruction input from the operation unit 62.

For example, the switching valve 42 is a manual type, and a state in which hot water is discharged only from the first water discharge unit 11, a state in which hot water is discharged only from the second water discharge unit 12, and a state in which the first water discharge unit 11 and the second water discharge unit 12 are discharged. It may be possible to manually switch between a state in which hot water is discharged from both sides at the same time. Further, the switching valve 42 may be replaced with a bifurcated pipe or the like so that hot water is always discharged from both the first water discharge unit 11 and the second water discharge unit 12 at the same time by driving the pump 14. Further, the switching valve 42 is not necessarily limited to one that enables simultaneous water discharge, and may be one that selectively discharges hot water from only one of the first water discharge unit 11 and the second water discharge unit 12.

As shown in FIG. 4, the bypass flow path 24 connects the first flow path 21 on the upstream side of the pump 14 and the second flow path 22 on the upstream side of the jet pump unit 18. The bypass flow path 24 connects, for example, the first water supply pipe 33 and the second water supply pipe 34. As a result, in the abnormal state in which the first suction port 31a is clogged, the bypass flow path 24 has, in other words, the pressure loss of the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21. However, when it becomes larger than the bypass flow path 24, the amount of hot water supplied to the pump 14 from the second suction port 32a is larger than the amount of hot water supplied to the pump 14 from the first suction port 31a. The first flow path 21 and the second flow path 22 are always communicated with each other so as to increase the number. The bypass flow path 24 communicates, for example, the first water supply pipe 33 and the second water supply pipe 34. Conversely, in a normal state where the first suction port 31a is not clogged, in other words, the pressure loss of the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21 is the bypass flow. When it is smaller than the pressure loss of the path 24, the amount of hot water supplied to the pump 14 has a relationship of 1st suction port 31a> 2nd suction port 32a.

In the first flow path 21 and the bypass flow path 24, the pressure loss of the hot water passing through the bypass flow path 24 passes through the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21. It is configured to be larger than the pressure loss of the hot water. In the second flow path 22 and the bypass flow path 24, the pressure loss of the hot water passing through the bypass flow path 24 passes through the second flow path 22 on the upstream side of the confluence position with the bypass flow path 24 in the second flow path 22. It is configured to be larger than the pressure loss of the hot water. The bypass flow path 24 is, for example, the first flow path 21 upstream of the confluence position with the bypass flow path 24 in the first flow path 21 and the second upstream side from the confluence position with the bypass flow path 24 in the second flow path. It has a pressure loss adjusting means such that the pressure loss is larger than that of the two flow paths.

Further, the pressure loss of the hot water flowing into the bypass flow path 24 from the second suction port 32a flows from the second suction port 32a into the second flow path 22 of the portion 22a between the bypass flow path 24 and the jet pump unit 18. Greater than the pressure loss of hot water. In other words, the portion 22a of the second flow path 22 is a portion between the bypass flow path 24 of the second water supply pipe 34 and the jet pump unit 18.

Similarly, the pressure loss of the hot water flowing into the bypass flow path 24 from the first suction port 31a flows from the first suction port 31a into the first flow path 21 of the portion 21a between the bypass flow path 24 and the pump 14. Greater than the pressure loss of hot water. In other words, the portion 21a of the first flow path 21 is a portion between the bypass flow path 24 of the first water supply pipe 33 and the pump 14.

The minimum flow path cross-sectional area d3 of the bypass flow path 24 is smaller than the minimum flow path cross-sectional area d2 of the second flow path 22 on the upstream side of the confluence position with the bypass flow path 24 in the second flow path 22. The minimum flow path cross-sectional area d3 of the bypass flow path 24 is, for example, smaller than the minimum flow path cross-sectional area of the second flow path 22 between the second suction port 32a and the jet pump unit 18. That is, the flow path cross-sectional areas d2 and d3 have a relationship of d2> d3. As a result, as described above, the pressure loss of the second flow path 22 on the upstream side of the bypass flow path 24 can be made smaller than the pressure loss of the bypass flow path 24.

If the minimum flow path cross-sectional area d3 of the bypass flow path 24 is made too small, it becomes difficult for hot water to flow into the bypass flow path 24. On the contrary, if the minimum flow path cross-sectional area d3 of the bypass flow path 24 is made too large, it becomes difficult for hot water to flow into the jet pump unit 18. Therefore, the minimum flow path cross-sectional area d3 of the bypass flow path 24 is preferably 29% or more and less than 100% of the minimum flow path cross-sectional area d2 of the second flow path 22.

The minimum flow path cross-sectional area d3 of the bypass flow path 24 is smaller than the minimum flow path cross-sectional area d1 of the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21. The minimum flow path cross-sectional area d3 of the bypass flow path 24 is, for example, smaller than the minimum flow path cross-sectional area of the first flow path 21 between the first suction port 31a and the pump 14. That is, the flow path cross-sectional areas d1 and d3 have a relationship of d1> d3. As a result, as described above, the pressure loss of the first flow path 21 on the upstream side of the bypass flow path 24 can be made smaller than the pressure loss of the bypass flow path 24. The minimum flow path cross-sectional area d3 of the bypass flow path 24 is preferably 29% or more and less than 100% of the minimum flow path cross-sectional area d1 of the first flow path 21.

The flow path cross-sectional area d2 of the second flow path 22 is set to, for example, the same as the flow path cross-sectional area d1 of the first flow path 21. Alternatively, the flow path cross-sectional area d2 of the second flow path 22 is larger than the flow path cross-sectional area d1 of the first flow path 21. That is, the flow path cross-sectional areas d1 and d2 are set in the relationship of d1 ≦ d2.

The relationship between the pressure loss between the first flow path 21, the second flow path 22, and the bypass flow path 24 is not limited to the flow path cross-sectional area, and is, for example, the first flow path 21, the second flow path 22, and the bypass flow. It may be set according to the shape of the road 24 or the like. For example, the first flow path 21 and the second flow path 22 are made as straight as possible, and the bypass flow path 24 is made into a curved line. Alternatively, the cross-sectional area of a part of the bypass flow path 24 may be set smaller than the minimum flow path cross-sectional area d1 of the first flow path 21 and the minimum flow path cross-sectional area d2 of the second flow path 22. Even when the shapes of the first flow path 21, the second flow path 22, and the bypass flow path 24 are devised in this way, the pressure loss of the first flow path 21 on the upstream side of the bypass flow path 24 is as described above. Can be smaller than the pressure loss of the bypass flow path 24. The pressure loss of the second flow path 22 on the upstream side of the bypass flow path 24 can be made smaller than the pressure loss of the bypass flow path 24.

FIG. 5 is a perspective view schematically showing the first suction unit according to the embodiment.
As shown in FIG. 5, the first suction unit 31 has a cover 35 that covers the first suction port 31a. The cover 35 has, for example, a side surface portion 35a and a front surface portion 35b. The side surface portion 35a extends in a direction perpendicular to the inner wall surface 104 of the bathtub body 102 and surrounds the first suction port 31a. The front surface portion 35b is provided at an end portion of the side surface portion 35a opposite to the inner wall surface 104, faces the first suction port 31a, and covers the first suction port 31a together with the side surface portion 35a.

Further, the cover 35 has a plurality of through holes 35c for inserting hot water. The plurality of through holes 35c are provided in the front surface portion 35b as well as in the side surface portion 35a.

The cover 35 is detachably attached to the main body of the first suction portion 31 having the first suction port 31a or the bathtub main body 102. The cover 35 is detachably attached to the main body of the first suction unit 31 or the bathtub main body 102 by a screw 35d. A plurality of screws 35d are provided. The cover 35 is screwed by a plurality of screws 35d. In this example, three screws 35d are shown. The number of screws 35d is not limited to three, and may be one or two, or four or more.

The method of attaching the cover 35 is not necessarily limited to the screw 35d. The cover 35 may be attached by using, for example, engagement. Alternatively, a female screw may be formed on the inner peripheral surface of the cover 35 itself, and a male screw may be formed on the outer peripheral surface of the main body portion, and the cover 35 may be attached by screwing these screws. The cover 35 may be attached by any method that allows the cover 35 to be detachably attached.

The configuration of the second suction unit 32 is substantially the same as the configuration of the first suction unit 31. The second suction unit 32 has a cover 36. The cover 36 has a side surface portion 36a, a front surface portion 36b, and a plurality of through holes 36c. Each through hole 36c is provided in each of the side surface portion 36a and the front surface portion 36b. The cover 36 is detachably screwed by a plurality of screws 36d.

By providing the covers 35 and 36 on the first suction portion 31 and the second suction portion 32 in this way, foreign matter such as hair can be removed from the first suction port 31a and the second suction port 32a to the first flow path 21 and the second. It is possible to prevent the flow path 22 from penetrating deep into the flow path 22. Therefore, even when foreign matter or the like is clogged in the first suction port 31a or the second suction port 32a, it is possible to easily remove the foreign matter or the like clogged in the first suction port 31a or the second suction port 32a.

Further, by providing the through holes 35c and 36c also in the side surface portions 35a and 36a, the first suction port 31a and the second suction port 31a and the second suction port are provided as compared with the case where the through holes 35c and 36c are provided only in the front surface portions 35b and 36b. It is possible to prevent the mouth 32a from being clogged with foreign matter or the like. For example, when the bather's hair is long, it is possible to prevent the first suction port 31a and the second suction port 32a from being completely blocked by the bather's hair.

Furthermore, by making the covers 35 and 36 removable, for example, cleaning and maintenance can be facilitated. At this time, by screwing the covers 35 and 36 with the screws 35d and 36d, it is possible to prevent the covers 35 and 36 from being unexpectedly removed. Therefore, it is possible to more reliably prevent the first suction port 31a and the second suction port 32a from being clogged with foreign matter or the like.

As described above, in the bathtub device 10 according to the present embodiment, the first suction port 31a is clogged with foreign matter such as hair and dust, so that it is upstream from the confluence position with the bypass flow path 24 in the first flow path 21. Even if the pressure loss of the first flow path 21 on the side increases and the suction flow rate from the first suction port 31a decreases, hot water is supplied from the second flow path 22 to the first flow path 21 via the bypass flow path 24. Can be supplied. Further, even when the second suction port 32a is clogged, the hot water is supplied from the first flow path 21 to the jet pump unit 18 via the branch passage 16, so that the hot water stored in the water storage unit 50 can be stored. Hot water that is drawn into the suction pipe 52 by the action of a jet pump and is newly supplied into the water storage unit 50 via the bypass flow path 24 can also be supplied to the second water discharge unit 12.

Therefore, even when the first suction port 31a or the second suction port 32a is clogged, it is possible to suppress an increase in the negative pressure in the first flow path 21 or the second flow path 22, and the first suction port 31a or the first suction port 32a. 2 Foreign matter stuck in the suction port 32a can be easily removed. Furthermore, even when the first suction port 31a or the second suction port 32a is clogged, water discharge from at least one of the first water discharge unit 11 and the second water discharge unit 12 is continued without stopping the pump 14. Can be done.

As described above, even when the first suction port 31a or the second suction port 32a is clogged, the water discharge does not stop and the clogging of the first suction port 31a or the second suction port 32a can be easily cleared. The bathtub device 10 can be provided. Further, it is not necessary to provide a negative pressure detecting means for detecting the negative pressure, and the device itself can be made compact and has an inexpensive configuration.

Further, in the bathtub device 10, a jet pump unit 18 for amplifying the discharge water flow rate is provided on the path of the second flow path 22. As a result, the space behind the bathtub required for installing the bathtub device 10 can be suppressed as compared with the case where the pump 14 is provided on each of the first flow path 21 and the second flow path 22. In other words, it is possible to prevent the space in which the bather enters the bathtub main body 102 and takes a bath from becoming narrow due to the installation of the bathtub device 10. For example, even when water is discharged from each of the first water discharge unit 11 and the second water discharge unit 12 at the same time while saving the installation space, each of the first water discharge unit 11 and the second water discharge unit 12 is sufficient. It is possible to obtain a large discharge water flow rate.

Further, in the tub device 10, the pressure loss of the hot water passing through the bypass flow path 24 is the pressure loss of the hot water passing through the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21. Since the first flow path 21 and the bypass flow path 24 are configured so as to be larger than the above, the first flow path 21 is normally not clogged with the first suction port 31a and the second suction port 32a. The hot water toward the pump 14 provided on the path is from the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21 having a smaller pressure loss than the bypass flow path 24. It is sucked a lot. Therefore, in a state where the first suction port 31a and the second suction port 32a are not clogged, hot water from the first suction port 31a to the pump 14 provided on the path of the first flow path 21 from the second suction port 32a. It is possible to suppress the creation of a situation in which a large amount of water is supplied. Therefore, in a normal time when the first suction port 31a and the second suction port 32a are not clogged, the hot water sucked from the second suction port 32a is supplied to the jet pump unit 18 and is stabilized from the second water discharge unit 12. Can spit water.

In the bathtub device 10, the minimum flow path cross-sectional area d3 of the bypass flow path 24 is smaller than the minimum flow path cross-sectional area d1 of the second flow path 21. As a result, the pressure loss on the bypass flow path 24 side can be surely made larger than the pressure loss on the first flow path 21 side with a simple configuration.

In the tub device 10, the pressure loss of hot water passing through the bypass flow path 24 is larger than the pressure loss of hot water passing through the second flow path 22 on the upstream side of the confluence position with the bypass flow path 24 in the second flow path 22. Since the second flow path 22 and the bypass flow path 24 are configured to be large, suction is performed from the second suction port 32a in a normal time when the first suction port 31a and the second suction port 32a are not clogged. Even if the hot water is sucked to the bypass flow path 24 side by the pump 14, at least a part of the hot water sucked from the second suction port 32a due to the large pressure loss in the bypass flow path 24. , It is possible to suppress the supply to the bypass flow path 24 side. Therefore, the bypass in the hot water passing upstream from the confluence position with the bypass flow path 24 in the second flow path 22 from the second suction port 32a by the suction of the pump 14 provided on the path of the first flow path 21. The hot water that does not flow into the flow path 24 can be reliably supplied to the jet pump unit 18 by the jet action of the jet pump unit 18. Therefore, in a normal time when the first suction port 31a and the second suction port 32a are not clogged, the hot water sucked from the second suction port 32a is supplied to the jet pump unit 18 and is stabilized from the second water discharge unit 12. Can spit water.

In the bathtub device 10, the minimum flow path cross-sectional area d3 of the bypass flow path 24 is smaller than the minimum flow path cross-sectional area d2 of the second flow path 22. As a result, the pressure loss on the bypass flow path 24 side can be surely made larger than the pressure loss on the second flow path 22 side with a simple configuration.

In the bathtub device 10, the second suction port 32a is provided at a position displaced horizontally with respect to the first suction port 31a. This makes it possible to prevent the first suction port 31a and the second suction port 32a from being blocked at the same time by the hair hanging down due to gravity, for example, when the hair of the bather is long.

In the bathtub device 10, one of the first suction port 31a and the second suction port 32a is provided on the rear side of the central CL in the front-rear direction, and the other of the first suction port 31a and the second suction port 32a is in the front-rear direction. It is provided on the front side of the central CL of. As a result, one of the first suction port 31a and the second suction port 32a is arranged on the head side of the bather whose back is in contact with the backrest surface 106, and the first suction port 31a and the second suction port 32a are arranged. The other is arranged on the leg side of the bather whose back is in contact with the backrest surface 106. As a result, it is possible to more reliably prevent the first suction port 31a and the second suction port 32a from being blocked by the hair of the bather or the like at the same time.

In this example, the first suction port 31a is provided on the rear side, and the second suction port 32a is provided on the front side. In this case, for example, the distance between the first suction port 31a and the pump 14 can be shortened. In other words, the length of the first water supply pipe 33 can be shortened. Therefore, the pressure loss due to the first water supply pipe 33 can be suppressed.

Further, in this example, the second water discharge unit 12 is provided above the first water discharge unit 11. At this time, by providing the first suction port 31a on the rear side and the second suction port 32a on the front side, the first suction port 31a and the first water discharge portion 11 can be easily connected by the first flow path 21. In addition, the second suction port 32a and the second water discharge portion 12 can be easily connected by the second flow path 22. That is, the first flow path 21 and the second flow path 22 can have a simple shape. It is possible to prevent the first flow path 21 and the second flow path 22 from having a complicated piping shape, and to suppress the increase in size of the bathtub device 10. It is possible to prevent a large space from being required on the back side of the bathtub body 102.

On the other hand, contrary to the above, when the first suction port 31a is provided on the front side and the second suction port 32a is provided on the rear side, the first suction port 31a connected to the pump 14 is provided from the backrest surface 106. It is possible to more reliably prevent the first suction port 31a from being blocked by the hair of the bather or the like.

FIG. 6 is a block diagram schematically showing a modified example of the bathtub device according to the embodiment.
The same reference numerals are given to those having substantially the same functions and configurations as those of the above-described embodiment, and detailed description thereof will be omitted. Further, in FIG. 6, as in FIG. 4, only the main part of the bathtub device 80 is extracted and shown.
As shown in FIG. 6, the bathtub device 80 includes a first pump 81 and a second pump 82. The first pump 81 is provided on the path of the first flow path 21, sucks hot water in the bathtub body 102 from the first suction port 31a, and supplies it to the downstream side. The second pump 82 is provided on the path of the second flow path 22, and sucks the hot water in the bathtub body 102 from the second suction port 32a and supplies it to the downstream side. As the first pump 81 and the second pump 82, for example, the same pumps 14 as described in the above embodiment are used.

In the bathtub device 80, the bypass flow path 24 connects the first flow path 21 on the upstream side of the first pump 81 and the second flow path 22 on the upstream side of the second pump 82. As a result, when the first suction port 31a is clogged, the bypass flow path 24 has a second suction port 32a to the first pump 81 rather than the amount of hot water supplied from the first suction port 31a to the first pump 81. When the amount of hot water supplied to the second suction port 32a becomes larger and the second suction port 32a is clogged, the amount of hot water supplied from the second suction port 32a to the second pump 82 is larger than the amount of hot water supplied from the first suction port 31a. The first flow path 21 and the second flow path 22 are always communicated with each other so that the amount of hot water supplied to the second pump 82 is larger.

The pressure loss of the hot water flowing into the bypass flow path 24 from the first suction port 31a and the second suction port 32a is the first flow of the portion 21b between the bypass flow path 24 and the first pump 81 from the first suction port 31a. It is larger than the pressure loss of the hot water flowing into the passage 21 and the pressure loss of the hot water flowing into the second flow path 22 of the portion 22b between the bypass flow path 24 and the second pump 82 from the second suction port 32a.

The minimum flow path cross-sectional area d3 of the bypass flow path 24 is the minimum flow path cross-sectional area d1 between the first flow path 21 and the first pump 81, and between the second flow path 22 and the second pump 82. It is smaller than the minimum flow path cross-sectional area d2.

As described above, instead of the jet pump unit 18, the first pump 81 and the second pump 82 may be provided in the first flow path 21 and the second flow path 22, respectively. Even in this case, even if the bypass flow path 24 is provided so that the first suction port 31a is clogged with foreign matter such as hair or dust and the suction flow rate from the first suction port 31a is reduced, the bypass flow path 24 is also provided. Hot water can be supplied from the second flow path 22 to the first flow path 21 via the above. Similarly, when the second suction port 32a is clogged, hot water can be supplied from the first flow path 21 to the second flow path 22 via the bypass flow path 24. Therefore, even when the first suction port 31a or the second suction port 32a is clogged, it is possible to suppress an increase in the negative pressure in the first flow path 21 or the second flow path 22, and the first suction port 31a or the first suction port 32a. 2 Foreign matter stuck in the suction port 32a can be easily removed.

Further, even when the first suction port 31a or the second suction port 32a is clogged, at least one of the first water discharge unit 11 and the second water discharge unit 12 without stopping the first pump 81 and the second pump 82. Water can be continued to be discharged from. As described above, even when the first suction port 31a or the second suction port 32a is clogged, the water discharge does not stop and the clogging of the first suction port 31a or the second suction port 32a can be easily cleared. A bathtub device 80 can be provided. Further, it is not necessary to provide a negative pressure detecting means for detecting the negative pressure, and the device itself can be made compact and has an inexpensive configuration.

Further, in the bathtub device 80, for example, when there is a difference in suction performance between the first pump 81 and the second pump 82 and the first pump 81 has stronger suction performance, suction is performed from the second suction port 32a. Most of the generated hot water may go to the first pump 81 via the bypass flow path 24.

At this time, the cross-sectional area of the flow path is formed so that the bypass flow path 24 has a larger pressure loss than the first flow path 21 on the upstream side of the confluence position with the bypass flow path 24 in the first flow path 21. There is. Therefore, most of the hot water supplied to the first pump 81 is sucked from the first suction port 31a side where the pressure loss is small. Therefore, the suction of the first pump 81 leads to the suppression of suction of hot water from the second suction port 32a side to the first pump 81 side via the bypass flow path 24.

Therefore, in a normal state where the first suction port 31a and the second suction port 32a are not clogged, even if the first pump 81 has a stronger suction performance, most of the hot water sucked from the second suction port 32a is. , It is possible to suppress suction to the first pump 81 via the bypass flow path 24.

Further, in the bathtub device 80, the minimum flow path cross-sectional area d3 of the bypass flow path 24 is from the minimum flow path cross-sectional area d1 of the first flow path 21 and the minimum flow path cross-sectional area d2 of the second flow path 22. Is also small. As a result, the pressure loss on the bypass flow path 24 side can be surely made larger than the pressure loss on the first flow path 21 side and the pressure loss on the second flow path 22 side with a simple configuration.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. The above-mentioned embodiments which have been appropriately designed by those skilled in the art are also included in the scope of the present invention as long as they have the features of the present invention. For example, the shape, dimensions, material, arrangement, and the like of each element included in the bathtub devices 10, 80, and the like are not limited to those exemplified, and can be appropriately changed.
Further, the elements included in each of the above-described embodiments can be combined as long as technically possible, and the combination thereof is also included in the scope of the present invention as long as the features of the present invention are included.

10, 80 Bathing device, 11 1st spouting section, 12 2nd spouting section, 14 pump, 16 branch path, 18 jet pump unit, 21 1st flow path, 22 2nd flow path, 24 bypass flow path, 31 1st Suction section, 31a 1st suction port, 32 2nd suction port, 32a 2nd suction port, 33 1st water supply pipe, 34 2nd water supply pipe, 35, 36 cover, 40 pipes, 42 switching valve, 44 pipes, 50 water storage Part, 52 Suction pipe, 54 Injection part, 60 Control part, 62 Operation part, 81 1st pump, 82 2nd pump, 100 tub, 102 tub body, 104 inner wall surface, 106 backrest surface

Claims (8)

A bathtub device installed in a bathtub that stores hot and cold water.
The first and second spouting portions for spouting hot water into the bathtub,
A first flow path for supplying hot water from the first suction port provided in the bathtub to the first water discharge portion, and
A second flow path for supplying hot water from the second suction port provided in the bathtub to the second water discharge portion, and
A pump provided on the path of the first flow path, which sucks hot water in the bathtub from the first suction port and supplies it to the downstream side.
A branch path branched from the first flow path between the first water discharge portion and the pump,
A jet pump unit provided on the path of the second flow path and connected to the pump via the branch path.
A water storage unit that can store hot water supplied from the second suction port inside, and a water storage unit.
A suction pipe that sucks hot water stored in the water storage section and supplies it to the second water discharge section.
An injection unit that injects hot water supplied from the pump into the suction pipe so that the hot water stored in the water storage unit is sucked into the suction pipe by the action of a jet pump.
With a jet pump unit,
When the first flow path on the upstream side of the pump and the second flow path on the upstream side of the jet pump unit are connected and the first suction port is clogged, the first suction port is blocked. The first flow path and the second flow path are always connected so that the amount of hot water supplied from the second suction port to the pump is larger than the amount of hot water supplied to the pump. Bypass flow path to communicate with
A bathtub device characterized by being equipped with. The pressure loss of the hot water passing through the bypass flow path is larger than the pressure loss of the hot water water passing through the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path. The bathtub device according to claim 1, wherein the first flow path and the bypass flow path are configured. The minimum flow path cross-sectional area of the bypass flow path is smaller than the minimum flow path cross-sectional area of the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path. 2. The bathtub device according to claim 2. The pressure loss of the hot water passing through the bypass flow path is larger than the pressure loss of the hot water water passing through the second flow path on the upstream side of the confluence position with the bypass flow path in the second flow path. The bathtub device according to any one of claims 1 to 3, wherein the second flow path and the bypass flow path are configured. The minimum flow path cross-sectional area of the bypass flow path is smaller than the minimum flow path cross-sectional area of the second flow path on the upstream side of the confluence position with the bypass flow path in the second flow path. The bathtub device according to claim 4. A bathtub device installed in a bathtub that stores hot and cold water.
The first and second spouting portions for spouting hot water into the bathtub,
A first flow path for supplying hot water from the first suction port provided in the bathtub to the first water discharge portion, and
A second flow path for supplying hot water from the second suction port provided in the bathtub to the second water discharge portion, and
A first pump provided on the path of the first flow path, which sucks hot water in the bathtub from the first suction port and supplies it to the downstream side.
A second pump provided on the path of the second flow path, sucking hot water in the bathtub from the second suction port and supplying it to the downstream side,
When the first flow path on the upstream side of the first pump and the second flow path on the upstream side of the second pump are connected and the first suction port is clogged, the first. When the amount of hot water supplied from the second suction port to the first pump is larger than the amount of hot water supplied from the suction port to the first pump, and the second suction port is clogged. The first flow so that the amount of hot water supplied from the first suction port to the second pump is larger than the amount of hot water supplied from the second suction port to the second pump. A bypass flow path that constantly communicates the road with the second flow path,
Equipped with
The pressure loss of hot water passing through the bypass flow path is the pressure loss of hot water passing through the first flow path on the upstream side of the confluence position with the bypass flow path in the first flow path, and the second flow path. The first flow path, the second flow path, and the bypass so as to be larger than at least one of the pressure loss of the hot water passing through the second flow path on the upstream side of the confluence position with the bypass flow path in the above. A bathtub device characterized by having a flow path configured. The bathtub device according to any one of claims 1 to 6, wherein the second suction port is provided at a position laterally displaced from the first suction port. The inner wall surface of the bathtub has a backrest surface that supports the back of the bather.
One of the first suction port and the second suction port is provided on the rear side of the center in the front-rear direction with respect to the backrest surface of the bathtub.
The bathtub device according to claim 7, wherein the other of the first suction port and the second suction port is provided on the front side of the center in the front-rear direction with respect to the backrest surface of the bathtub.

Images