JP5266554B2 - Circulating bath equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulation type bathing apparatus highly efficiently cleaning a filter, retaining bathtub water and a pipe clean and economizing a manufacturing cost. <P>SOLUTION: A circulation mechanism 4 provided in a bathing apparatus 24 includes a pump 18, a filter 5, a switch-over conduit 7 for switching over a pipe 6 to the filter 5, and a downstream circulation valve 21 at the downstream pipe 6 of the filter 5. When the switch-over conduit 7 is opened and the downstream circulation valve 21 is closed, the pipe route is switched over to clean the filter 5 with hot water flowing the switched pipe 6, wherein the filter 5 is defined as a filter 8 with a centrifugal filtering function and the switch-over conduit 7 is defined as a discharge valve 10 provided at the filter 8 with the centrifugal filtering function. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a circulatory bathing apparatus that enables independent bathing of physically handicapped persons and elderly persons (hereinafter referred to as care recipients), particularly those who require a low degree of care.

The thing of patent document 1 of a conventional apparatus circulates and disinfects the hot water of a bathtub or a hot water tank.
A filter is provided in a pipeline through which hot water moves from the bathtub to the hot water tank, and backwashing of the filter is disclosed.
Japanese Patent No. 3007530

In the configuration described in Patent Document 1, the filter can be backwashed, but the cleanliness is incomplete because the pipe used for cleaning the filter is also used for hot water supply.
In addition, a three-way valve is required at both the entrance and exit of the filter, and this configuration is complicated and expensive to manufacture.

  The present invention has been made to solve these various problems, and an object of the present invention is to provide a circulating bath apparatus that can efficiently clean the filter, keep the bath water and piping clean, and reduce manufacturing costs. It is to provide.

The present invention that realizes the above object is provided in the circulation mechanism 4 provided in the bathing device 24, the pump 18, the filter 5, the change pipe 7 that changes the pipe 6 to the filter 5, and the pipe 6 downstream of the filter 5. A downstream circulation valve 21 is provided, and when the change pipe 7 is opened and the downstream circulation valve 21 is closed, the pipe path is changed, and the filter 5 is washed with hot water flowing through the changed pipe 6. 5 and centrifugal filtration function with a filter 8, the Ri name changing line 7 as a drain valve 10 provided in the centrifugal filtration function with a filter 8, the bathing unit 24, tub 2 and the power switch 46 is provided, bathing device 24, when cut after use or power switch 46, also to drain residual water in the filter 5 and the pipe 6 also opens drain valve 10 of the filter 5 and at the same time draining the hot water of the bathtub 2循It is an expression bathing equipment.
A circulation switch 9 for starting the circulation operation of the circulation mechanism 4, a circulation stop switch 38 for stopping the circulation operation of the circulation mechanism 4, and a drain valve timer 11 for controlling the drain valve 10 are additionally provided. The drainage valve 10 opens for a predetermined time set by the drainage valve timer 11 and the downstream circulation valve 21 closes for a predetermined time set by the drainage valve timer 11 by an instruction signal from the circulation stop switch 38. Then, hot water flows from the filter 8 with centrifugal filtration function to the drain valve 10, and the filter 8 with centrifugal filtration function is washed with the hot water.
Further, a discriminator 15 for discriminating the accumulation of dust in the filter 5 is additionally installed. With an instruction signal from the discriminator 15, the drain valve 10 opens for a predetermined time set by the drain valve timer 11, and the downstream circulation valve 21 It closes for a predetermined time set by the drain valve timer 11, hot water flows from the filter 8 with centrifugal filtration function to the drain valve 10, and the filter 8 with centrifugal filtration function is washed with the hot water.
Furthermore, the bathing device 24 includes the bathtub 2 and the hot water storage tank 3, and the circulation mechanism 4 circulates the hot water in the bathtub 2 to the hot water storage tank, and the hot water in the bathtub 2 moves by the circulation mechanism 4. However, the filter 5 is automatically washed each time it is moved, and the clogging of the filter 5 can be eliminated.
In addition, a maintenance window 17 is provided in the outer casing 16 of the bathing device 24 so that the state of collecting the dust in the filter 5 can be visually observed and removed .

In the present invention, the circulation mechanism 4 provided in the bathing device 24 is provided with a filter 5 and a change pipe 7 for changing the pipe to the filter 5, and the change pipe 7 is opened to change the pipe. is intended to clean the filter 5 in hot water flowing through the pipes 6, the filter 5 to a centrifugal filtration function with a filter 8, Ri Na as a drain valve 10 which is provided with the change line 7 to centrifugal filtration function with a filter 8 The bathing device 24 is provided with the bathtub 2 and the power switch 46. The bathing device 24 drains the hot water of the bathtub 2 after use or when the power switch 46 is turned off, and simultaneously opens the drain valve 10 of the filter 5. Since the residual water of the filter 5 and the pipe 6 is also drained , the dust of the filter 8 with a centrifugal filtration function can be efficiently removed and washed, and the hot water in the bathtub 2 can be cleaned, which is convenient.
Further, since the pipe for cleaning the filter 8 with centrifugal filtration function is different from the pipe 6 for normal use, the water used for cleaning does not enter the pipe 6 for hot water supply, which is clean and convenient.
Furthermore, when the hot water in the bathtub 2 is drained after the bathing device 24 is used, the drain valve 10 of the filter 5 is opened simultaneously with the drainage, and the residual water in the filter 5 is drained. It is possible to prevent easy germs from being generated by drainage, maintain hot water cleanly and safely, and allow comfortable and comfortable bathing.
Furthermore, when the power switch 46 is turned off, the drain valve 10 opens, and the residual water in the pipe 6 and the filter 5 is drained. Therefore, it is possible to prevent generation of germs in the filter 5, which is convenient.

In addition, it is easy to manufacture the piping 6 around the filter 8 with centrifugal filtration function, and the number of valves used around the filter 5 at the time of manufacture is smaller than that of the conventional device, which is advantageous in terms of cost reduction. is there.
Moreover, the residual water of the filter 8 with a centrifugal filtration function and piping connected to this can be drained by the drain valve 10, and therefore the piping 6 can be kept clean, which is convenient.

  In addition, the drain valve 10 opens for a predetermined time set by the drain valve timer 11 and cleans the filter 8 with the centrifugal filtration function by the instruction of the circulation switch 9 to start the circulation operation. The filter 5 can be washed and dust can be reliably removed, and the function of the filter 5 can be fully exhibited, which is convenient.

  Further, the discriminator 15 according to the present invention discriminates the state of dust accumulation in the filter 5, and the filter 8 with centrifugal filtration function is washed by the instruction signal of the discriminator 15, so that the dust can be surely removed. It can be removed and clean hot water can be transferred, which is convenient.

Further, according to the present invention, the entire amount of hot water in the bathtub 2 is processed by the circulation mechanism 4 so that the filter 5 is automatically washed each time it is moved. It is.
Further, since the entire amount of hot water is moved, the time required for the movement is almost constant, so that the clogging condition of the filter 5 can be known from the time lapse condition, and the replacement time of the filter 5 can be known conveniently.

  Since the maintenance window 17 is provided in the outer casing 16 of the bathing device 24 so that the state of dust accumulation and clogging of the filter 5 can be visually observed, maintenance work such as removal, inspection, cleaning and replacement of the filter 5 is facilitated.

Moreover, since this invention discards the hot water slightly left in the bottom part of the bathtub 2 at every use, it can remove the stain | pollution | contamination of hot water, and is convenient .

For the purpose of providing a circulating bath 1 that can efficiently clean the filter 5, keep the bath water and piping clean, and reduce manufacturing costs, the circulating mechanism 4 provided in the bath 24 has a pump 18, A filter 5, a change pipe 7 for changing the pipe 6 to the filter 5, and a downstream circulation valve 21 are provided in the pipe 6 downstream of the filter 5. When the change pipe 7 is opened and the downstream circulation valve 21 is closed, the pipe The path is changed and the filter 5 is washed with hot water flowing through the changed pipe 6. The filter 5 is used as a filter 8 with a centrifugal filtration function, and the changed pipeline 7 is provided in the filter 8 with a centrifugal filtration function. It was drain valve 10 and to Ri Na, the bathing unit 24, tub 2 and the power switch 46 is provided, bath device 24, when cut after use or power switch 46, the tub 2 Open also drain valve 10 of the filter 5 and at the same time draining with a circulating bath apparatus residual water filter 5 and pipe 6 is also drained, it was realized.

  Embodiment 1 of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of the present invention. 1 is a piping system diagram, FIG. 2 is a detailed piping system diagram, FIG. 3 is a block diagram, and FIG. 4 is a front view showing the circulating bathing apparatus 1 in a state where the door 27 is moved to a predetermined lower position. FIG. 5 is a left side view of the circulating bath 1, and FIG. 6 is a plan view of the circulating bath 1.

The circulating bathing apparatus 1 shown in FIGS . 1 and 2 is provided by connecting a circulating mechanism 4 to a bathing apparatus 24.
A pump 18, a filter 5, and a downstream circulation valve 21 are sequentially connected to the circulation mechanism 4 through a pipe 6 to form a circulation path.
The filter 5 is provided with a change pipe 7 that changes the circulation path of the pipe 6. The change pipe 7 is provided with a drain valve 10. The change pipe line 7 is a filter in which the filter 5 is washed by the water passing through the pipe 6 when the drain valve 10 of the change pipe line 7 is opened and the pipe path is changed while passing through the pipe 6. is there. Hot water to the pipe 6 flows through the operation of the pump 18.
The filter 5 is a filter 8 with a centrifugal filtration function, and the change pipe 7 is a drain valve 10 provided in the filter 8 with a centrifugal filtration function.
The circulation mechanism 4 also has a configuration in which the second circulation mechanism is provided in the bathtub 2 so that only the hot water in the bathtub 2 is taken out and circulated in the presence of the circulation mechanism 4 that connects the bathtub 2 and the hot water storage tank 3 in communication. There is also a configuration in which a third circulation mechanism is provided in the hot water tank 3 so that only the hot water in the hot water tank 3 is taken out and circulated. The change pipeline 7 can also be provided in the second circulation mechanism and the third circulation mechanism.

In the piping system diagram shown in FIG. 2, bathing device 24 is connected to bathtub 2, hot water storage tank 3, circulation mechanism 4 that circulates hot water connected to bathtub 2 and hot water storage tank 3, and hot water is supplied to hot water storage tank 3. The hot water storage pipe 26 is used.
The pipe 6 and the forward pump 32 connected between the hot water tank 3 and the bathtub 2 move hot water from the hot water tank 3 to the bathtub 2.
The pipe 6, the pump 18 and the filter 5 connected between the bathtub 2 and the hot water tank 3 move hot water from the bathtub 2 to the hot water tank 3 and circulate it.

The circulating electrical circuit shown in FIG. 3 is an electrical circuit according to a configuration for circulating hot water stored in the bathtub 2 or the hot water storage tank 3, or the bathtub 2 and the hot water storage tank 3.
The circulation switch 9 is a switch that pours hot water into the pipe 6 and starts circulation of the hot water. When the circulation switch 9 is turned on, the upstream circulation valve 20 is opened, the pump 18 is driven, and the drain valve timer 11 is energized.

The drain valve timer 11 counts a predetermined time based on an instruction signal of the circulation switch 9 when the circulation switch 9 is turned on. The drain valve timer 11 is a predetermined time (5 to 10 seconds in the first embodiment) from the time when the circulation switch 9 is turned on. Only the drain valve 10 is energized, the drain valve 10 is opened, the downstream circulation valve 21 is cut off, and the downstream circulation valve 21 is closed. Under this state, hot water passing through the pipe 6 from the bathtub 2 is drained from the drain valve 10, but the filter 5 is washed by the hot water passing through the filter 5.
The filter 5 is the filter 8 with a centrifugal filtration function in the first embodiment. The filter 8 with a centrifugal filtration function has an inner shape so that a dust-like flow is formed inside the cylindrical cover by removing the dust on the surface of the mesh filter by providing a circular mesh filter inside the cylindrical cover and switching the flow path. In the formed filter, the change pipe 7 (= drain valve 10) is provided at the lower end of a filter 8 with a centrifugal filtration function installed vertically.
After a predetermined time has elapsed, the drain valve timer 11 shuts down the drain valve 10, closes the drain valve 10, energizes the downstream circulation valve 20, and opens the downstream circulation valve 20. Under this condition, the hot water flowing out of the bathtub 2 moves to the hot water tank 3 through the pipe 6.
The hot water that has moved to the bathtub 2 starting from the hot water tank 3 returns to the hot water tank 3 and circulates.

The bathing device 24 shown in FIG. 3 includes a bathtub 2 and a hot water tank 3, and the circulation mechanism 4 circulates all the hot water in the bathtub 2 to the hot water tank.
The entire amount of hot water in the bathtub 2 is processed by the circulation mechanism 4 to be moved, but the filter 5 is washed each time the hot water is moved, and the clogging of the filter 5 can be eliminated.

When the hot water in the bathtub 2 is moved to the hot water storage tank 3, the pump 18 is stopped in a state where it remains a little, and then the remaining water is drained by opening the bathtub drain valve 48. The valve 10 is also opened, and the remaining water in the filter 5 and the pipe 6 is drained.
Also, after using the bathing device 24 and when the power switch 45 is turned off, the drain valve 10 of the filter 5 opens, drains the hot water in the bathtub 2 and drains the remaining water in the filter 5 and the pipe 6.

Further, the bathing device 24 is additionally provided with a drainage flow meter 33 for measuring the amount of water drained from the changed pipeline 7 and a hot water storage pipe 26 for supplying new hot water to the bathing device 24.
The same amount of hot water drained through the change pipe 7 is automatically supplied from the hot water storage pipe 26 to the bathing device 24.

In another example of the configuration for cleaning the filter 5, the drain valve 10 is opened and the piping path is changed for the count time of the drain valve timer 11, but the output signal of the circulation switch 9 is replaced with the drain valve timer 11. The combination of the sensor switch 31 can change the piping path for a predetermined time. That is, the drain valve 10 is opened by the ON signal of the circulation switch 9 to change the piping path, the filter 5 is washed, and when the operation signal from the sensor switch 31 is obtained, the drain valve 10 is closed and the piping path is restored.
In another example, instead of the drain valve timer 11, the piping path can be changed for a predetermined time by a combination of the output signal of the circulation stop switch 38 and the sensor switch 31.
In still another example, the drain valve 10 is opened by the ON signal of the circulation switch 9 to change the piping path and clean the filter 5. When a certain amount of hot water flows from the drain valve 10, the drain valve 10 obtains an output signal of the flow meter 13 and closes it, returns the piping path to the original state, and finishes the cleaning of the filter 5.
In addition, there is a sensor switch 31 as another configuration relating to a member that gives a signal to the drain valve timer 11.
When the instruction signal enters the drain valve timer 11 from the sensor switch 31, the drain valve timer 11 starts counting time.
The sensor switch 31 is a switch that is provided in the bathtub 2 and is turned on when the amount of hot water stored in the bathtub 2 becomes small (in the specific example, a float switch installed below the bathtub 2).
When the water level drops and the sensor switch 31 is turned on, the pump 18 is driven as it is, the drain valve timer 11 is started, the drain valve 10 is energized, the drain valve 10 is opened, the downstream circulation valve 20 is blacked out, and the The downstream circulation valve 20 is closed.
The hot water stored in the bathtub 2 reaches the filter 5 through the pipe 6 and is drained while washing the filter 5.

Further, a circulation stop switch 38 is another configuration related to a member that gives a signal so that the drain valve timer 11 starts counting.
The instruction signal from the circulation stop switch 38 activates the drain valve timer 11.
The drain valve timer 11 counts a predetermined time based on an instruction signal from the circulation stop switch 38 when the circulation stop switch 38 is turned on. The drain valve 10 is energized only for a second), the drain valve 10 is opened, the downstream circulation valve 21 is cut off, and the downstream circulation valve 21 is closed. Water passing through the pipe 6 is drained from the drain valve 10 to wash the filter 5. After a predetermined time has elapsed, the drain valve 10 is closed and the downstream circulation valve 20 is opened, but the pump 18 is stopped and the hot water circulation is stopped.

The overall appearance of the circulating bath 1 shown in FIG. 4 has a substantially rectangular parallelepiped shape, and the circulating bath 1 is provided with a circulating mechanism 4 in the bath 24.
The circulation bath 1 includes a bathtub 2, a hot water tank 3, and a circulation mechanism 4 including a pump 18, a pipe 6, and the like, which are disposed on the side surface of one long side of the bathtub 2 (the rear surface of the bathtub 2). Is the main component. The hot water storage tank 3 stores hot water to be supplied to the bathtub 2 and is connected to the bathtub 2 through the circulation mechanism 4.

  The front surface of the bathtub 2 relating to the bathing device 24 is configured by a substantially rectangular parallelepiped resin or stainless steel container having an opening 35.

  As shown in FIG. 5, the hot water tank 3 is supported by a support frame 34 on the rear surface side of the bathtub 2.

  Then, on the front side of the opening 35 of the bathtub 2, the door 27 that can close the opening 35 in a watertight manner is reciprocated between the predetermined upper position and the predetermined lower position by the door moving means 30. Is provided.

  A seal member 37 made of a soft rubber material is attached to the door surface (rear surface) facing the side wall surface 36 in a substantially inverted trapezoidal shape.

  A maintenance window 17 is provided in the outer casing 16 of the bathtub 2 so that the state of dust accumulation in the filter 5 can be visually observed, and the filter 5 can be easily detached and taken out.

The door moving means 30 reciprocates the door 27 in a direction along the side wall surface 36 in a section between a predetermined upper position and a predetermined lower position.
After the door 27 and the door moving means 30 are connected and the door 27 is moved to a predetermined upper position by the door moving means 30, the door 27 is pressed and moved in a substantially orthogonal direction with respect to the side wall surface 36 at the periphery of the opening 35. As a result, the opening 35 is watertightly closed by the door 27.

  The link pieces 29 and 29 are pivotally attached to the front side of the moving member 28. The upper and lower link pieces 29 and 29 form a four-bar parallel link and connect the door 27 and the moving member 28.

  When the door 27 is in a predetermined lower position, the seal member 37 and the side wall surface 36 on the rear surface of the door 27 are not in contact with each other, and the door 27 and the side wall surface 36 are spaced apart from each other in a parallel manner while maintaining a certain distance. .

When the door 27 shown in FIG. 4 is at a predetermined lower position, the door moving means 30 is in a contracted state.
When the door moving means 30 is operated in the extending direction, the moving member 28 moves upward.
Along with this movement, the door 27 connected to the moving member 28 through the upper and lower link pieces 29 moves upward along the side wall surface 36 while maintaining a parallel state with a certain distance from the side wall surface 36.

Even after the door 27 reaches the predetermined upper position, the extension operation of the door moving means 30 continues, so the moving member 28 continues to move further upward.
That is, the moving member 28 moves upward relative to the door 27. By the upward movement of the moving member 28, the entire door 27 is pressed and moved in a direction orthogonal to the side wall surface 36, and the opening 35 is closed watertight with the door 27.

Conversely, in order to move the door 27 shown in FIG. 4 downward, the door moving means 30 in the extended state may be operated in the contracting direction.
When the door moving means 30 is contracted, a four-node parallel link acts and the door 27 moves in a direction away from the side wall surface 36 by a certain distance while maintaining a parallel state with the side wall surface 36 (the closed state is released). , Transition to the state shown in FIG.

In addition to the power switch 45 of the circulating bathing apparatus 1, the bathtub 2 is connected to the bathtub 2 from the door movement switch 46 and the hot water storage tank 3 for instructing the upward movement and the downward movement of the door 27. There are provided an operation unit 19 (see FIG. 6) equipped with various switches such as a circulation switch 9 for instructing the start of hot water storage in the hot water, a hot water temperature display unit 47 for displaying the hot water temperature in the bathtub 2, and the like.
3, 22 is a circulating hot water supply switch, 23 is a circulating hot water supply valve, 25 is a chemical tank, 25 is a new hot water supply valve, 41 is a new hot water flow meter, 42 is a controller, 43 is a temperature sensor, 44 Is a temperature setter.

Next, the usage method of the circulation type bathing apparatus 1 of Example 1 is demonstrated.
The door 27 is moved to a predetermined upper position, and it is assumed that a predetermined volume of hot water is stored in the hot water tank 3.
The caregiver turns on the power switch 48 and then depresses the door movement switch 46 to move the door 27 to a predetermined lower position to open the door.
A care recipient seated on a transport device (not shown) such as a shower chair is guided to a position near the opening 35.

  When the door 27 is at a predetermined lower position, the lower surface portion of the door 27 is inclined with respect to the upper surface portion at the rear of the bathtub 2, so that the door 27 is positioned in the vertical vertical direction, A care recipient or a caregiver can perform auxiliary work of the care recipient in a state where the care recipient or the caregiver is closer to the bathtub 2.

A care recipient with a low care requirement, for example, with a care requirement of 1, transfers from the opening 35 to the inner bottom surface 18 of the bathtub 2 by himself / herself.
In addition, in the case of a care recipient who has a high degree of care requirement of 3 or more, it may be transferred to the inner bottom surface 18 while receiving assistance from the caregiver.

At this time, since the vicinity of the upper surface of the door 27 does not protrude upward from the inner bottom surface, it does not hinder the transfer operation of the care recipient and the assistance work of the caregiver.
In addition, the height from the floor surface to the front end of the inner bottom surface is set to approximately the same height as the seating surface of the transport device, so care recipients must take significant effort to transfer from the transport device to the inner bottom surface. And can be transferred easily.

After confirming that the care recipient has completely entered the bathtub 1, the caregiver presses the door movement switch 46, moves the door 27 to a predetermined upper position, and closes it.
After the door 27 has reached a predetermined upper position by the door moving means 30, the door 27 is pressed and moved in a direction substantially orthogonal to the side wall surface 36 to close the opening 35 in a watertight manner.
The caregiver can close the opening 35 in a watertight manner only by an extremely easy operation of pressing down the door movement switch 46, and the operation burden on the caregiver's door movement is extremely small.

The circulating hot water switch 22 is pressed to supply hot water. That is, the operation of the forward pump 32 is started, and hot water previously stored in the hot water storage tank 3 is supplied and moved to the bathtub 2.
When the sensor switch 31 provided above the bathtub 2 is turned on, the hot water supply movement is automatically stopped.
Bathing care recipients.
When the care recipient is to take a bath, the circulation switch 9 is pushed and the hot water in the bathtub 2 is moved to the hot water tank 3. Empty the hot water in the bathtub 2.

The circulation mechanism 4 that moves and circulates the hot water in the bathtub 2 to the hot water storage tank 3 activates the drain valve timer 11, the upstream circulation valve 20, and the pump 18 when the circulation switch 9 is pressed.
The change pipeline 7 (the drain valve 10 in the specific example) is opened, and the downstream circulation valve 21 is closed.
The piping path is changed from the circulation path to the cleaning path. The filter 5 (in the specific example, the filter 8 with a centrifugal filtration function) is washed with hot water flowing through the changed pipe 6.

  Specifically, the drain valve 10 is opened for a predetermined time set by the drain valve timer 11 and the downstream circulation valve 21 is closed for a predetermined time set by the drain valve timer 11 by an instruction signal from the circulation switch 9, and hot water is centrifugally filtered. When circulating from the function-equipped filter 8 to the drain valve 10, the filter 8 with a centrifugal filtration function is washed with this hot water.

In another example, the instruction signal from the sensor switch 31 opens the drain valve 10 and closes the downstream circulation valve 21. When hot water flows from the filter 8 with a centrifugal filtration function to the drain valve 10, The filter 8 with a centrifugal filtration function is washed.
In another example, the instruction signal from the circulation stop switch 38 opens the drain valve 10 for a predetermined time set by the drain valve timer 11 and the downstream circulation valve 21 sets the predetermined time set by the drain valve timer 11. When the water is closed and hot water flows from the filter 8 with centrifugal filtration function to the drain valve 10, the filter 8 with centrifugal filtration function is washed with this hot water. When the predetermined time elapses, the pump 18 stops.

Further, the state of dust accumulation in the filter 5 is visually observed from the maintenance window 17 provided in the outer casing 16 of the bathing device 24. When it is confirmed that dust has accumulated in the filter 5, the filter 5 is taken out from the maintenance window 17, and cleaning, washing, replacement, or appropriate maintenance is performed.
The circulation mechanism 4 circulates the entire hot water in the bathtub 2 to the hot water storage tank. The entire amount of hot water in the bathtub 2 is processed by the circulation mechanism 4 to be moved, but the filter 5 is washed each time the hot water is moved, and the clogging of the filter 5 can be eliminated.

  When the filter 5 is washed, a small amount of hot water is discarded. The same amount of hot water drained through the changed pipe 7 is automatically supplied from the hot water storage pipe 26 to the bathing device 24, and the bathing device 24 maintains a constant amount of hot water.

When the hot water in the bathtub 2 is moved to the hot water storage tank 3, the pump 18 is stopped in a state where it remains a little, and then the remaining water is drained by opening the bathtub drain valve 48. The valve 10 is also opened, and the remaining water in the filter 5 and the pipe 6 is drained.
Also, after using the bathing device 24 and when the power switch 45 is turned off, the drain valve 10 of the filter 5 opens, drains the hot water in the bathtub 2 and drains the remaining water in the filter 5 and the pipe 6.

  After the lower sensor switch 31 provided in the bathtub 2 detects that there is no remaining water in the bathtub 2, the downward movement of the door 27 is started and the door 27 is opened.

  The care recipient needs to take a bath with himself or with the assistance of the caregiver, transfer to the transport device, and complete the bath.

  In the second embodiment shown in FIG. 7, the circulation switch 9 that gives the count start signal to the drain valve timer 11 according to the first embodiment is replaced by the discriminator 15, and the count start signal is sent to the drain valve timer 11 by the output signal of the discriminator 15. It is something to give. That is, in the second embodiment, the drain valve timer 11 is started upon obtaining an instruction signal from the discriminator 15.

  A pressure gauge 12 for measuring the water pressure and a flow meter 13 for measuring the flow rate of the pipe 6 are sequentially connected to the pipe 6 on the upstream side of the filter 5. The outputs of the pressure gauge 12 and the flow meter 13 are input and connected to a discriminator 15 that discriminates the amount of dust accumulated in the filter 5, and the output of the discriminator 15 is connected to the drain valve 10 and the upstream circulation valve 20.

A discriminator based on the output value of the pressure gauge 12 or the flow meter 13 when the pressure of the pipe 6 exceeds a predetermined threshold value or when the flow rate of the pipe 6 decreases below the predetermined threshold value. 15 determines that dust has accumulated in the filter 5 and gives an instruction signal to the drain valve timer 11.
The drain valve timer 11 counts a predetermined time based on the instruction signal of the discriminator 15, and energizes the drain valve 10 for a predetermined time (5 seconds in the second embodiment) from when the instruction signal of the discriminator 15 is obtained. Then, the drain valve 10 is opened, the upstream circulation valve 20 is cut off, and the upstream circulation valve 20 is closed.
After a predetermined time has elapsed, the drain valve timer 11 shuts down the drain valve 10 to close the drain valve 10, energizes the upstream circulation valve 20, and opens the upstream circulation valve 20.

  In the third embodiment shown in FIG. 8, the pressure gauge 12 and the flow meter 13 that give signals to the discriminator 15 according to the second embodiment are replaced with a time counter 14. That is, in the third embodiment, the discriminator 15 discriminates the dust accumulation in the filter 5 based on the output of the time counter 14.

  The time counter 14 measures the time when the entire amount of hot water enters the hot water tank 3. The sensor switch 31 is provided in the bathtub 2 and operates when all of the hot water in the bathtub 2 has entered the hot water storage tank 3, and an output signal related to the operation enters the time counter 14, at which time the time counter 14 Ends the time measurement.

When the entire amount of hot water in the bathtub 2 enters the hot water storage tank 3 while passing through the pipe 6, the time counter 14 measures the time taken for the hot water storage.
Based on the output value of the time counter 14, the discriminator 15 discriminates that dust has accumulated in the filter 5.
When the measured value exceeds a predetermined required time, the discriminator 15 determines that dust has accumulated in the filter 5 and gives an instruction signal to the drain valve timer 11.

In the present invention, the circulation mechanism 4 provided in the bathing device 24 is provided with a filter 5 and a change pipe 7 for changing the pipe to the filter 5, and the filter 5 is opened by changing the pipe by opening the change pipe 7. It can be applied to a circulation type bathing apparatus for washing.
In addition, this invention is not limited to the bathtub shown to FIG. 4 thru | or 6, It can implement also in the bathing apparatus for wheelchairs, a raising / lowering bathing apparatus, and another bathing apparatus.

It is a piping system diagram of Example 1 of the present invention. It is the piping system diagram which actualized Example 1, 2 of this invention. It is a block diagram which shows Example 1 of this invention. It is a front view of Example 1 of the present invention. It is a left view of Example 1 of this invention. It is a top view of Example 1 of the present invention. It is a block diagram which shows Example 2 of this invention. It is a block diagram which shows Example 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Circulation bath 2 Bathtub 3 Hot water tank 4 Circulation mechanism 5 Filter 6 Piping 7 Changed line 8 Filter with centrifugal filtration function 9 Circulation switch 10 Drain valve 11 Drain valve timer 12 Pressure gauge 13 Flow meter 14 Time counter 15 Discriminator 17 Maintenance window 18 Pump 21 Downstream circulation valve 24 Bathing device 26 Hot water storage pipe 31 Sensor switch 33 Drain flow meter 38 Circulation stop switch 48 Bathtub drain valve

Claims (6)

The circulation mechanism 4 provided in the bathing device 24 is provided with a pump 18, a filter 5, a change pipe 7 for changing the pipe 6 to the filter 5, and a downstream circulation valve 21 in the pipe 6 downstream of the filter 5, When the change pipe line 7 is opened and the downstream circulation valve 21 is closed, the pipe path is changed, and the filter 5 is washed with hot water flowing through the changed pipe 6.
The filter 5 to a centrifugal filtration function with a filter 8, Ri Na as a drain valve 10 which is provided with the change line 7 to centrifugal filtration function with a filter 8,
The bathing device 24 is provided with a bathtub 2 and a power switch 46.
The bathing device 24 is characterized by draining the hot water in the bathtub 2 after use or when the power switch 46 is turned off, and simultaneously opening the drain valve 10 of the filter 5 to drain the remaining water of the filter 5 and the pipe 6. Bathing device. A circulation switch 9 for starting the circulation operation of the circulation mechanism 4, a circulation stop switch 38 for stopping the circulation operation of the circulation mechanism 4, and a drain valve timer 11 for controlling the drain valve 10 are additionally installed.
With the instruction signal from the circulation switch 9 or the instruction signal from the circulation stop switch 38, the drain valve 10 opens for a predetermined time set by the drain valve timer 11, and the downstream circulation valve 21 is set by the drain valve timer 11. The circulating bath apparatus according to claim 1, wherein the circulating bath is closed for a predetermined time, and hot water flows from the filter with centrifugal filtration function 8 to the drain valve 10, and the hot filter is washed with the hot water.   A discriminator 15 for discriminating the accumulation of dust in the filter 5 is additionally installed. In response to an instruction signal from the discriminator 15, the drain valve 10 opens for a predetermined time set by the drain valve timer 11, and the downstream circulation valve 21 2. The filter is closed for a predetermined time set by the timer 11, and hot water flows from the filter 8 with centrifugal filtration function to the drain valve 10, and the filter 8 with centrifugal filtration function is washed with the hot water. Circulatory bathing equipment. Circulation mechanism 4 is intended to circulate the hot water of the bath 2 to the hot water storage tank, a bathtub 2 hot water will be treated so as to move the whole amount in circulation mechanism 4 filter 5 is cleaned automatically every time the mobile The circulating bath apparatus according to claim 1, wherein clogging of the filter 5 can be eliminated.   The circulating bath according to any one of claims 1 to 4, wherein a maintenance window 17 is provided in the outer casing 16 of the bathing device 24 so that the state of the dust accumulated in the filter 5 can be seen and removed. apparatus.   When the hot water in the bathtub 2 is moved to the hot water storage tank 3, the pump 18 is stopped in a state where it remains a little, and then the remaining water is drained by opening the bathtub drain valve 48. The circulating bathing apparatus according to any one of claims 1 to 5, wherein the valve 10 is also opened to drain the remaining water from the filter 5 and the pipe 6.

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