JP2003093252A - Jet bath apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jet bath apparatus capable of preventing hair from being sucked into a sucking port during use. SOLUTION: This jet bath apparatus is provided with a sucking port cover 15 detachably attached on the sucking port 9 for sucking hot water in a bathtub having a mesh 19 on its surface part, and a safe guard 21 having a second porous opening part 20 fixed to the sucking port 9 in a state of the sucking port cover 15 being removed. Therefore, the mesh 19 attached to the sucking port cover 15 prevents the hair from being sucked directly into the sucking port 9. Even if a user removes the sucking port cover 15 to clean the mesh 19 of the sucking port cover 15 clogged with dust and then operates this apparatus without attaching the sucking port cover 15, the safety guard 21 prevents the hair from being sucked into the sucking port 9, thus ensuring the safety in the case of wrong use of the apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety device for a jet suction port of a jet bath device.

[0002]

2. Description of the Related Art A conventional jet bath device of this type is disclosed in Japanese Patent Laid-Open No.
There was a thing as described in Japanese Patent No. 319776. As shown in FIGS. 16 and 17, this jet bath device has a structure in which it is sucked by a pump 3 from a jet suction port 2 provided in a bathtub 1 and jetted from a jet port 4, and hot water sucked from the suction port 2 flows. A suction valve section 6 for sucking air from the outside into the suction pipe 5 when a negative pressure equal to or higher than a set pressure is generated in the suction pipe 5 is provided.

When hair or the like is sucked into the suction port 2 while the pump 3 is operating, the negative pressure in the suction pipe 5 increases. Due to this increase in the negative pressure, the valve 7 of the intake valve unit 6 opens against the force of the spring 8 to suck the external air into the pipe. As a result, the pump 3 becomes idle, the suction force is almost eliminated, the sucked hair and the like can be easily peeled off, and a highly safe jet bath device can be provided.

[0004]

However, in the conventional jet bath device as described above, when the entire suction port 2 is covered with hair or the like, the negative pressure in the pipe 5 increases and the hair is effectively operated. When sucked into a part of the suction port 2, the negative pressure does not increase so much and the suction valve unit 6 may not operate. At this time, the pump 3 continues to operate, the hair is sucked into the inside of the pipe 5, and the hair is not separated from the suction port 2 by the force of the infant, so that it cannot be said to be a reliable safety device.

[0005]

In order to solve the above problems, the present invention has a construction in which a small porous opening is provided at the suction port in two stages and hot water is sucked from these pores.

According to the above invention, even when the hair is sucked, the small holes do not disturb the hair so that it does not enter the inside of the pipe, and the hair is not sucked directly into the suction port. In addition, the cover is removed to remove dust clogging the perforated opening of the cover, and even if the user forgets to put it on, a safety guard with a second perforated opening is provided, so that the user can Safety can be secured even if used by mistake.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A jet bath apparatus according to claim 1 of the present invention is a bathtub, a jet outlet provided in the bathtub for jetting a jet flow, a suction port for sucking hot water in the bathtub, and a suction port for sucking the hot water. A pump device that guides hot water to the spout and spouts it, a suction port cover that is detachably mounted on the suction port and has a first porous opening on the surface, and is fixed to the suction port with the suction port cover removed. And a safety guard having an opened second porous opening.

With this configuration, the first cover provided on the suction port cover
Prevents hair from being directly sucked into the suction port because the porous opening of the hose interferes. In addition, the suction port cover was removed in order to clean dust and the like stuck in the porous opening part of the suction port cover, and a safety guard having a second porous opening part was provided even if the vehicle was forgotten to put it on when operating. Because of the configuration, it is possible to ensure safety even if the user mistakenly uses it.

A jet bath device according to a second aspect of the present invention includes a bathtub, a jet port provided in the bathtub for jetting a jet flow, and
A suction port for sucking the hot water in the bathtub, a pump device for guiding the hot water sucked from the suction port to the jet port and jetting it, and a suction port which is detachably provided on the suction port and has a first porous opening portion on the surface portion. The pump device includes a cover and a safety guard having a second porous opening fixed to the suction port in a state where the suction port cover is removed, and the pump device has a rotation speed of the drive motor for a predetermined time. It is configured to have a rotation speed detection circuit that stops the operation when the speed is out of the rotation speed range.

For this reason, when the suction port cover or the safety guard is filled with foreign matter or clogged with dirt, it is detected that the load on the pump is reduced and the rotation speed is increased, and the pump operation is stopped. be able to.

A jet bath device according to a third aspect of the present invention includes a bathtub, a jet port provided in the bathtub for ejecting a jet flow,
A suction port for sucking the hot water in the bathtub, a pump device for guiding the hot water sucked from the suction port to the jet port and jetting it, and a suction port which is detachably provided on the suction port and has a first porous opening portion on the surface portion. The pump device comprises a cover and a safety guard having a second porous opening fixed to the suction port with the suction port cover removed, and the pump device has a drive current of a drive motor for a predetermined period of time. It is configured to have a drive current detection circuit that stops the operation when it is out of the range.

For this reason, when the suction port cover or the safety guard is blocked with foreign matter or clogged with dirt, it is detected that the load on the pump is reduced and the drive current of the motor is reduced, and the pump is operated. You can stop.

A jet bath device according to a fourth aspect of the present invention includes a bathtub, a jet port provided in the bathtub for ejecting a jet flow, and
A suction port for sucking the hot water in the bathtub, a pump device for guiding the hot water sucked from the suction port to the jet port and jetting it, and a suction port which is detachably provided on the suction port and has a first porous opening portion on the surface portion. A cover, a safety guard having a second porous opening fixed to the suction port with the suction port cover removed, and a suction flow passage extending from the suction port to the pump device to detect the internal water pressure The pump device has a suction pressure safety device that stops operation when the pressure detected by the pressure sensor deviates from a predetermined pressure.

For this reason, when the suction port cover and the safety guard are filled with foreign matter or clogged with dirt, it is possible to detect that the negative pressure in the suction passage has increased and stop the pump operation. it can.

A jet bath device according to a fifth aspect of the present invention comprises a bathtub, a jet port provided in the bathtub for ejecting a jet stream,
A suction port for sucking the hot water in the bathtub, a pump device for guiding the hot water sucked from the suction port to the jet port and jetting it, and a suction port which is detachably provided on the suction port and has a first porous opening portion on the surface portion. A cover, a safety guard having a second porous opening fixed to the suction port with the suction port cover removed, and water flowing in the suction channel extending from the suction port to the pump device. The pump device is configured to have a suction flow rate safety device that stops operation when the flow rate detected by the water amount sensor falls below a predetermined flow rate.

Therefore, when the suction port cover or the safety guard is covered with foreign matter or clogged with dirt, it is possible to detect that the flow rate in the suction passage is low and stop the pump operation. .

A jet bath device according to a sixth aspect of the present invention includes a bathtub, a jet port provided in the bathtub for ejecting a jet flow,
A suction port for sucking the hot water in the bathtub, a pump device for guiding the hot water sucked from the suction port to the jet port and jetting it, and a suction port which is detachably provided on the suction port and has a first porous opening portion on the surface portion. The pump device includes a cover, a safety guard having a second porous opening fixed to the suction port with the suction port cover removed, and a cover sensor for detecting removal of the suction port cover. The intake cover safety device is provided to stop the operation upon receiving a signal from the cover sensor.

Therefore, it is possible to stop the pump by detecting the removal of the suction port cover.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a configuration diagram showing a jet bath device of Embodiment 1 of the present invention, FIG. 2 is a sectional view of a suction port of the jet bath device, and FIG. 3 is a perspective view thereof.

In FIGS. 1 to 3, reference numeral 1 denotes a bathtub having a suction port 9 and a jet port 10 on its side surface. The ejection port 10 may be provided at a plurality of locations instead of one location as shown in the figure. The hot water in the bath tub 1 is circulated by the pump device 11 through the suction pipe 12 and the ejection pipe 13.

The suction port 9 is attached so as to sandwich the bathtub 1 with a waterproof packing 14 interposed therebetween, and is covered with a removable suction port cover 15. In the embodiment of FIG. 2, the suction port cover 15 is attached to the screw 16 provided on the outer circumference of the suction port 9 by screwing, but the configuration is not limited to this, and various types such as a fitting type and a bayonet type are used. The following configurations are possible.

The suction port cover 15 has openings 17 and 18 on its side surface and front surface, and a mesh 19 is embedded in the openings 17 and 18 as shown in FIG. The mesh 19 may be a fine porous opening, and is not limited to a mesh.

A safety guard 21 having a second perforated opening 20 on the front side is provided so that the suction pipe 12 does not directly open even if the suction port cover 15 is removed from the suction port 9.
Is embedded. The porous portion of the safety guard 21 may also have a net attached.

Reference numeral 22 is a packing for eliminating the gap between the suction port and the bath 1 when the bar 15 is attached to the suction port 9.

Next, the operation and action will be described. Normally, the suction port cover 15 is used with the suction port cover 9 attached to the suction port 9. Therefore, the pump 11 is operated to suck the hot water in the bathtub 1 from the mesh 19 of the suction port cover 15 through the porous opening 20 of the safety guard 21 through the suction pipe 12 and jet from the jet pipe 13 as a jet jet at the jet port 10. To be done.

In general, the jet flow rate from the jet port 10 is 4 per minute.
It is said that a jet of about 0 to 50 L is comfortable. Spout 1
Even when there are a plurality of 0s, the suction port 9 is often concentrated in one place, and a large amount of water flow is sucked into the suction port 9. Therefore, dust and dirt during bathing are concentrated in the suction port 9 and deteriorate the pump 11. In addition, when a woman with long hair is sucked into the suction port 9 during bathing and gets tangled inside the suction pipe 12, it may not be possible to easily pull out the hair.

In the present invention, as described with reference to FIGS. 2 and 3, the suction port 9 is provided with the suction port cover 15, and the hot water is sucked through the mesh 19 provided on the surface of the suction port cover 15. As a result, dust in the hot water sucked to the suction port 9 remains at the mesh 19 and does not enter the pump 11 through the suction pipe 12. Similarly, since the hair also sticks to the surface of the mesh 19 but does not get inside, it can be easily peeled off.

Since the surface of the mesh 19 of the suction port cover 15 accumulates dust and dirt, the user needs to clean it regularly. In the embodiment, the suction port cover 15 is of a screw-in type so that it can be easily removed and cleaned.

At this time, in order to prevent the effect of the mesh 19 from being lost if the user forgets to clean the suction port cover 15 and forgets to attach it, in order to prevent the effect of the mesh 19 from being lost, the porous opening 20 having a coarser mesh than the mesh of the suction port cover 15 is provided. Safety guard 21 with
This prevents dust and hair from entering. The safety guard 21 is fixed to the suction port 9 and cannot be removed by the user. For normal dust and dirt, suction port cover 15
Since it is protected by the mesh 19 described above, dust hardly adheres to the safety guard 21, so that the user does not have to remove and clean it.

(Second Embodiment) FIG. 4 is a control block diagram of a jet bath device according to a second embodiment of the present invention, and FIG. 5 is a flow chart showing a control operation of the jet bath device. The second embodiment differs from the first embodiment in that when the mesh 19 of the suction port cover 15 and the porous opening 20 of the safety guard 21 are blocked by dust or hair, the load on the pump 11 is lightened and the rotation speed is different. Pump 11 is automatically detected when
It has a configuration with a safety function to stop the operation of. The same reference numerals as those in the first embodiment have the same structure, and the description thereof will be omitted.

Next, the operation and action will be described.
Is a motor for driving the pump 11 in FIG.
When a signal is sent to the controller 25 by operating the stop switch 24, the operation of the motor 23 is controlled through the motor drive circuit 26.

The motor 23 may be a DC or AC motor, but the structure of the motor drive circuit 26 changes depending on the type of these motors. 27 is a motor 23
2 shows a rotation speed detection circuit for detecting the rotation speed of the.

The operation of the above configuration will be described with reference to the flowchart of FIG. The operation check unit 28 checks the operation of the operation / stop switch 24, and if the operation determination unit 29 does not input the operation ON signal, the pump stop unit 30 returns to the operation check unit 28 without operating the pump 11. When an operation signal is input from the operation switch 24, the pump operation unit 31 starts the operation of the drive motor 23 of the pump 11. Next, a rotation speed check unit 32 that detects the rotation speed of the motor 23
The rotation speed of the motor 23 is detected by.

If the number of revolutions is within the predetermined upper limit n2 and lower limit n1, the operation is continued through the safety timer reset unit 33 described later. The lower limit threshold value n1 of the rotation speed n is for the purpose of detecting that the rotation speed of the motor 23 has stopped or significantly decreased due to a failure or lock accident of the motor 23. As described in FIGS. 2 and 3, the upper limit threshold value n2 is such that dirt is attached to the suction port,
When it is covered with hair or the human body and the suction port is blocked,
It is detected that the load of the pump 11 is lightened, the idling state is generated, and the number of revolutions is increased.

If the number of revolutions n is less than or equal to the threshold value n1, or n
When it becomes 2 or more, the safety timer unit 34 starts counting the safety timer. The safety timer is a timer that stops the motor 23 when the abnormality in the rotation speed n continues for a certain time or longer, ignores the instantaneous abnormality in the rotation speed, and prevents malfunction. Therefore, the pump stop unit 30 stops the operation of the motor 23 when an abnormality occurs in the safety timer determination unit 35 continuously for a predetermined time (several seconds). At this time, it is easy to provide the abnormality display 36 and the notification function.

With the above configuration, when the rotational speed becomes abnormal after the pump 11 is operated, the operation of the pump 11 is automatically stopped. Therefore, even when dust is attached to the suction port cover 15 or hair is sucked. It is safe to stop the pump 11. Further, this function exerts exactly the same effect even if the suction port cover 15 is forgotten to be used and dust or hair is adsorbed to the safety guard 21.

(Embodiment 3) FIG. 6 is a control block diagram of a jet bath apparatus according to Embodiment 3 of the present invention, and FIG. 7 is a flow chart showing the control operation of the jet bath apparatus. The third embodiment is different from the second embodiment in that the drive current value of the motor 23 is detected by the drive current detection circuit 37 instead of detecting the rotation speed of the motor 23, and the drive current is out of a predetermined range. The point is that the motor 23 is stopped when it is determined to be abnormal.

The same reference numerals as those in the second embodiment have the same structure, and the description thereof will be omitted.

Since the operation and action are almost the same as those of the second embodiment, only the changes will be described. In the flowchart of FIG. 7, the drive current check unit 38 detects the drive current of the motor 23. Since the drive current (load current) of the motor 23 changes according to the load, when the suction port 9 is closed, the load becomes light and the current value decreases. It also acts to abnormally stop when the winding of the motor 23 is short-circuited or current leaks to increase the current value above a predetermined value. The threshold values i1 and i2 of the drive current i are set to values taking these abnormalities into consideration.

In the structure for detecting the rotation speed of the second embodiment, it is necessary to provide a function of detecting the rotation speed of the motor 23. However, the drive current detection method detects a current value flowing in the motor 23, and therefore a new sensor is required. It can be realized with a simple configuration without the need to add functions.

(Embodiment 4) FIG. 8 is a block diagram showing a jet bath device according to a fourth embodiment of the present invention, FIG. 9 is a structural diagram of a pressure sensor 39 of the jet bath device, and FIG. 10 is control of the jet bath device. It is a block diagram. The fourth embodiment differs from the first embodiment in that the suction pipe 12 is provided with a pressure sensor 39 for detecting the water pressure inside the pipe. FIG. 9 shows an example of the pressure sensor 39. The pressure in the suction pipe 12 is derived from the discharge pipe 4
It is led to the detection chamber 41 through 0. The detection chamber 41 is separated from the air chamber 43 by a diaphragm 42. Air chamber 4
3 communicates with the atmosphere through a small hole 44. A load cell 45 is attached to the diaphragm 42. The pressure sensor 39 configured as described above guides the pressure in the suction pipe 12 from the outlet pipe 40 to the detection chamber 41, and the diaphragm 42 moves up and down according to the differential pressure between the detection chamber 41 and the air chamber 43. Since the air chamber 43 is always at atmospheric pressure due to the small hole 44, the diaphragm 42 moves according to the pressure P in the suction pipe 12. The movement of the diaphragm 42 is changed to an electric resistance value by the load cell 45 and a signal is output. The pressure sensor 39 is not limited to the configuration shown in FIG. 9, but may be any configuration that electrically detects the pressure P inside the suction pipe 12.

FIG. 10 shows a block diagram of this control circuit. The same numbers are assigned to blocks that operate in the same manner as in FIG. Also, the description will be focused on the parts different from those in FIG. The signal of the pressure sensor 39 is input to the suction pressure safety device 46, and the suction pressure safety device 46 compares the signal of the pressure sensor 39 with a predetermined set pressure 47, and the pressure sensor 39 decreases with respect to the set pressure 47. At that time, a signal for stopping the motor 23 of the pump 11 is output to the motor drive circuit 26.

With the above construction, the internal pressure P of the suction pipe 12 is normally a negative pressure because it is sucked by the pump 11, and the set pressure 47 is set in consideration of this. When the suction port 9 is clogged with foreign matter, this negative pressure acts in the direction of increasing, and the suction pressure safety device detects this and outputs a stop signal of the motor 23. Therefore, the mesh 19 of the suction port cover 9 and the porous opening 20 of the safety guard 21
Stop operation if hair or dust adheres to the. At this time, it is easily conceivable to add a display circuit or a notification circuit.

The set pressure 47 is the first threshold P1 for stopping the operation of the motor 23 and the second threshold P lower than P1.
A configuration in which the signal P of the pressure sensor 39 exceeds 2 is displayed or notified as a clogging sign when it exceeds P2 and a signal is output to the motor drive circuit 26 when it exceeds P1 is easily conceivable.

(Fifth Embodiment) FIG. 11 is a structural diagram of a water amount sensor 48 according to a fifth embodiment of the present invention, and FIG. 12 is a control block diagram of the fifth embodiment. The fifth embodiment differs from the fourth embodiment in that a water amount sensor 48 is provided in place of the pressure sensor 39 provided in the suction pipe 12 in FIG.

In FIG. 11, the water amount sensor 48 provided in the suction pipe 12 is provided with a water wheel 49 that rotates by the water (hot water) flowing inside, and the water wheel 49 rotates substantially in proportion to the water amount F flowing inside. The suction flow safety device 51 electrically detects the number of revolutions of the central shaft 50 of the water turbine 49, compares it with the set flow rate 52, and when the water amount F falls below a predetermined value, foreign matter is found in the suction port 9. When it is determined that it is covered, the operation of the motor 23 of the pump 11 is stopped.

The water amount sensor 48 has been described here as a structure using a water turbine, but the structure is not limited to this, and it is possible to electrically detect a signal proportional to the amount of water flowing inside. Good.

With the above structure, the amount of water that normally flows inside the suction pipe 12 is roughly determined by the suction force of the pump 11.

When a foreign substance is clogged in the suction port 9, this flow rate is reduced, so the suction flow rate safety device 51 detects this and outputs a stop signal for the motor 23. Therefore, when hair or dust adheres to the mesh 19 of the suction port cover 9 or the porous opening 20 of the safety guard 21, the operation is stopped.
At this time, it is easily conceivable to add a display circuit or a notification circuit.

Further, the set flow rate 52 is the first threshold value F1 for stopping the operation of the motor 23 and the second threshold value F which is larger than F1.
2 and displays or informs as a clogging sign when the signal F of the water amount sensor 48 becomes lower than this F2.
A configuration in which a signal is output to the motor drive circuit 26 when the value is lower than 1 is easily conceivable.

The specific operation of the controller 25 of the fourth and fifth embodiments is the same as that of the flow charts of FIGS. 5 and 7, and it can be said that only the signal source for detecting an abnormality is different, and therefore the description thereof is omitted here.

(Sixth Embodiment) FIG. 13 is a sectional view showing the structure of the suction port 9 of the sixth embodiment of the present invention, and FIG. 14 is a control block diagram of the sixth embodiment. The sixth embodiment differs from the first embodiment in that a magnet 53 is provided on the back surface of the suction port cover 15, and the reed switch 5 is located at a position facing the magnet of the suction port 9.
4 are arranged. When the suction port cover 15 is attached to the suction port 9, the magnet 53 approaches the reed switch 54,
The contact of the reed switch 54 is turned on. When the suction port cover 15 is removed, the magnet 53 separates from the reed switch 54 and the contact is turned off. In FIG. 14, the controller 25 controlling the operation of the pump 11 detects the signal of the reed switch 54 with the suction port cover safety device 58,
The pump is operated only when the signal of the reed switch 54 is ON, and the pump is not operated when the signal is OFF.

With the above construction, the pump 11 is operated only when the suction port cover 15 is correctly attached to the suction port 9. Therefore, if the suction port cover 15 is detached and left for cleaning, the pump 11 will not operate. A highly safe jet bath device can be realized.

FIG. 15 shows another embodiment for detecting attachment of the suction port cover 15. A reflection plate 55 is attached to the back surface of the suction port cover 15, and a light emitting element 56 and a light receiving element 57 are arranged in the suction port 9 facing the reflection plate 55. When the suction port cover 15 is properly mounted, the light emitted from the light emitting element 56 is reflected by the reflecting plate 55 and returns to the light receiving element 57. If the suction port cover 15 is not attached, the reflection plate 55 is eliminated, so that the light emission of the light emitting element 56 does not return to the light receiving element 57. Therefore, it becomes possible to detect whether or not the suction port cover 15 is attached by the signal of the light receiving element 57.
Similar to 4, it is possible to realize the operation of operating the pump 11 only when the suction port cover 15 is attached.

Further, the structure of the sixth embodiment and the second to fifth embodiments.
It is also possible to easily realize a configuration in which the configurations described in 1 are combined.

[0057]

As described above, in the jet bath device according to the present invention, even if hair or the like approaches the suction port, the hair is not directly sucked into the suction port. Even if you drive in a forgotten state, the safety guard prevents the hair from being sucked into the suction port and is safe. In addition, the suction port cover and the safety guard prevent dust and the like in the bathtub from reaching the pump device, so that the pump device is less likely to malfunction.

Further, in the jet bath device according to the second aspect, when hair or dirt adheres to the suction port cover, the suction flow rate from the suction port decreases and the rotation speed of the pump device increases. Since the rotation speed detection circuit detects and stops the operation of the pump device, it has an effect of having a double safety function. The same effect can be obtained when the rotation speed detection circuit is used with the suction port cover removed and the second porous opening of the safety guard is closed. In addition to this, the rotation speed detection circuit has an effect of stopping the operation of the pump device even when the rotation speed of the drive motor is lowered for some reason such as pump lock.

Further, in the jet bath device according to the third aspect, when hair or dirt adheres to the suction port cover, the suction flow rate from the suction port is reduced and the driving current of the pump device is reduced. Since the current detection circuit detects and stops the operation of the pump device, it has an effect of having a double safety function. Also, the same effect can be obtained when the drive current detection circuit is used with the suction port cover removed and the second porous opening of the safety guard is closed. In addition, the drive current detection circuit has an effect of stopping the operation of the pump device even when the drive current of the drive motor abnormally rises for some reason such as a short circuit of the motor winding.

Further, in the jet bath device according to the fourth aspect, when hair or dirt adheres to the suction port cover, the suction flow rate from the suction port is reduced and the internal pressure of the suction pipe is reduced. Since it is detected by the sensor and the operation of the pump device is stopped by the suction pressure safety device, there is an effect of having a double safety function. The same effect can be obtained when the suction pressure safety device is used with the suction port cover 15 removed and the second porous opening of the safety guard is closed.

Further, in the jet bath device according to the fifth aspect, when hair or dirt adheres to the suction port cover, the water flow rate sensor detects that the suction flow rate from the suction port has decreased, and the suction flow rate safety device. Since the operation of the pump device is stopped by this, there is an effect of having a double safety function. The same effect can be obtained when the suction flow safety device is used with the suction port cover removed and the second porous opening of the safety guard is closed.

Further, in the jet bath device according to the sixth aspect of the present invention, the operation of the pump device is stopped when the suction port cover is not attached by the suction port cover safety device which receives the signal from the reed switch and stops the operation. Since the pump device operates only when the suction port cover is properly attached, it is possible to prevent the cover from being removed and forgetting to attach it again for cleaning.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a jet bath device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a suction port portion of the jet bath device.

FIG. 3 is a perspective view of a suction port portion of the jet bath device.

FIG. 4 is a control block diagram of a jet bath device according to a second embodiment of the present invention.

FIG. 5 is a flowchart showing a control operation of the jet bath device.

FIG. 6 is a control block diagram of a jet bath device according to a third embodiment of the present invention.

FIG. 7 is a flowchart showing a control operation of the jet bath device.

FIG. 8 is a configuration diagram of a jet bath device according to a fourth embodiment of the present invention.

FIG. 9 is a structural diagram of a pressure sensor of the jet bath device.

FIG. 10 is a control block diagram of the jet bath device.

FIG. 11 is a structural diagram of a water amount sensor of a jet bath device according to a fifth embodiment of the present invention.

FIG. 12 is a control block diagram of the jet bath device.

FIG. 13 is a sectional view showing the structure of a suction port of a jet bath device according to a sixth embodiment of the present invention.

FIG. 14 is a control block diagram of the jet bath device.

FIG. 15 is a cross-sectional view showing another example of the structure of the suction port of the jet bath device.

FIG. 16 is a configuration diagram of a conventional jet bath device.

FIG. 17 is a sectional view of an intake valve portion of the jet bath device.

[Explanation of symbols]

1 bathtub 9 Suction port 10 spouts 11 Pump device 15 Suction port cover 19 mesh (first perforated opening) 20 Second perforated opening 21 Safety guard 23 Drive motor 27 Rotation speed detection circuit 34 Safety timer (predetermined time) 37 Drive current detection circuit 39 Pressure sensor 46 Suction pressure safety device 48 Water sensor 51 Suction flow safety device 53 Magnet (Cover sensor) 54 reed switch 55 Reflector 56 light emitting device 57 Light receiving element 58 Suction port cover safety device

Claims (6)

[Claims] 1. A bathtub, a jet outlet provided in the bathtub for jetting a jet flow, a suction port for sucking water or hot water in the bathtub, and a pump for guiding the water or hot water sucked from the suction port to the jet port. A device, a suction port cover detachably provided on the suction port and having a first porous opening on the surface, and a second porous unit fixed to the suction port with the suction port cover removed. A jet bath device comprising a safety guard having an opening. 2. A bathtub, a jet outlet provided in the bathtub for jetting a jet flow, a suction port for sucking water or hot water in the bathtub, and a pump for guiding the water or hot water sucked from the suction port to the jet port. A device, a suction port cover detachably provided on the suction port and having a first porous opening on the surface, and a second porous unit fixed to the suction port with the suction port cover removed. A jet bus including a safety guard having an opening, and the pump device having a rotation speed detection circuit for stopping the operation when the rotation speed of the drive motor is out of a predetermined rotation speed range for a predetermined time. apparatus. 3. A bathtub, a jet outlet provided in the bathtub for jetting a jet flow, a suction port for sucking water or hot water in the bathtub, and a pump for guiding the water or hot water sucked from the suction port to the jet port. A device, a suction port cover detachably provided on the suction port and having a first porous opening on the surface, and a second porous unit fixed to the suction port with the suction port cover removed. A jet bath device comprising a safety guard having an opening, and the pump device having a drive current detection circuit for stopping the operation when the drive current of the drive motor is out of a predetermined range for a predetermined time. 4. A bathtub, a jet outlet provided in the bathtub for jetting a jet flow, a suction port for sucking water or hot water in the bathtub, and a pump for guiding the water or hot water sucked from the suction port to the jet port. A device, a suction port cover detachably provided on the suction port and having a first porous opening on the surface, and a second porous unit fixed to the suction port with the suction port cover removed. A safety guard having an opening and a pressure sensor arranged in a suction flow path from the suction port to the pump device to detect water pressure inside, and the pump device has a predetermined pressure detected by the pressure sensor. A jet bath device having a suction pressure safety device that stops operation when the pressure deviates. 5. A bathtub, a jet outlet provided in the bathtub for jetting a jet flow, a suction port for sucking water or hot water in the bathtub, and a pump for guiding the water or hot water sucked from the suction port to the jet port. A device, a suction port cover detachably provided on the suction port and having a first porous opening on the surface, and a second porous unit fixed to the suction port with the suction port cover removed. A safety guard having an opening, and a water amount sensor that is arranged in a suction flow path from the suction port to the pump device and detects a water flow rate flowing in the flow path, and the pump device has a flow rate detected by the water amount sensor. A jet bath device having a suction flow safety device that stops operation when the flow rate falls below a predetermined flow rate. 6. A bathtub, a jet port provided in the bathtub for jetting a jet flow, a suction port for sucking water or hot water in the bathtub, and a pump for guiding the water or hot water sucked from the suction port to the jet port. A device, a suction port cover detachably provided on the suction port and having a first porous opening on the surface, and a second porous unit fixed to the suction port with the suction port cover removed. A configuration including a safety guard having an opening and a cover sensor that detects that the suction port cover has been removed, and the pump device has a suction port safety device that stops operation in response to a signal from the cover sensor. The jet bath device.