JP6906234B2 - Lifting bathing device - Google Patents

Description

The present invention relates to an elevating bathing device, and more particularly to an elevating bathing device equipped with a wheelchair-mounted elevating platform.

As a conventional elevating bathing device, for example, the configuration disclosed in Patent Document 1 is known. This elevating bathing device is configured so that the elevating table attached to the tip of the plunger of the hydraulic cylinder moves up and down in the bathtub. By lowering to the lowering position, the bather can take a bath.

Japanese Unexamined Patent Publication No. 7-31657

Since the stroke of the plunger that moves the elevating table up and down is constant, the conventional elevating bathing device has a problem that it cannot meet the needs such as changing the bathing height according to the posture of the bather.

Therefore, an object of the present invention is to provide an elevating bathing device capable of easily and surely changing the elevating stroke of an elevating table provided in a bathtub.

The object of the present invention is an elevating bathing device in which an elevating table is movably supported in a bathtub, and a cylinder in which at least a part is embedded in the bottom surface of the bathtub and a cylinder movably housed in the cylinder. The cylinder is provided with a cylindrical first piston and a second piston that is movably housed in the first piston and supports an elevating table. The cylinder has a base that closes the lower end and a base that closes the lower end. The first piston includes a cylindrical communication rod extending toward the upper end, and the first piston has a bottom portion that closes the lower end portion, and the communication rod penetrates a through hole formed in the bottom portion, whereby the communication rod is provided. A first communication passage that is slidable along the cylinder and communicates with the outside in the cylinder, and a second communication passage that communicates with the outside in the first piston via the communication rod are further provided. Achieved by an elevating bathing device.

In this elevating bathing device, it is preferable that the second piston is formed in a tubular shape so as to accommodate the communication rod, and the upper end thereof is closed.

The first communication passage and the second communication passage can be connected to the working water supply source via the first three-way valve and the second three-way valve, respectively, and the first three-way valve and the second three-way valve can be connected to each other. By switching the two-way valve to the water supply side, the working water is supplied from the working water supply source to the cylinder and the first piston, respectively, and the first three-way valve and the second three-way valve are moved to the drain side. By switching, the working water can be configured to be discharged from the cylinder and the first piston.

The second communication passage is preferably connected to the refill tank via the second three-way valve, and by switching the second three-way valve to the drain side, the inside of the first piston is said. It can be configured so that it communicates with the water replenishment tank and can replenish water in the first piston.

According to the present invention, it is possible to provide an elevating bathing device capable of easily and surely changing the elevating stroke of an elevating table provided in a bathtub.

It is a vertical cross-sectional view which shows the main part of the elevating bathing apparatus which concerns on one Embodiment of this invention. It is a vertical cross-sectional view which shows an example of the operating state of the elevating bathing apparatus shown in FIG. FIG. 3 is an overall configuration diagram of the elevating bathing device shown in FIG. It is a vertical cross-sectional view which shows another example of the operating state of the elevating bathing apparatus shown in FIG. It is a side view for demonstrating the use example of the elevating bathing apparatus shown in FIG. It is a side view for demonstrating another use example of the elevating bathing apparatus shown in FIG. It is a side view for demonstrating still another use example of the elevating bathing apparatus shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a vertical cross-sectional view showing a main part of an elevating bathing device according to an embodiment of the present invention, and FIG. 2 is a vertical cross-sectional view showing an example of an operating state of the elevating bathing device shown in FIG. be. As shown in FIGS. 1 and 2, the elevating bathing device 1 can move up and down in a cylinder 10, a tubular first piston 20 housed in the cylinder 10 so as to be vertically movable, and a first piston 20. A second piston 30 is provided, and an elevating table 2 on which a wheelchair or the like carrying a bather is mounted is supported by the second piston 30.

The cylinder 10 is configured such that the lower end of the main body 11 formed in a hollow cylinder shape is closed by the base portion 12. Inside the main body 11, a hollow tubular communication rod 13 extending from the center of the base 12 toward the upper end is provided. A flange portion 16 is provided on the upper outer periphery of the main body 11, and the flange portion 16 is a bolt or the like in a state where a portion below the flange portion 16 of the main body 11 is embedded in a pit formed on the bottom surface F of the bathtub. Is fixed to the floor surface F.

A first communication passage 14 and a second communication passage 15 are formed in the thick portion of the cylinder 10. One end side of the first communication passage 14 is opened above the flange portion 16 on the side surface of the main body 11 to form the first communication port 14a. The other end side of the first communication passage 14 is open to the upper surface of the base portion 12, and the internal space S1 of the cylinder 10 is communicated with the outside through the first communication passage 14.

One end side of the second communication passage 15 is opened above the flange portion 16 on the side surface of the main body 11 to form the second communication port 15a. The other end side of the second communication passage 15 opens to the upper end 15b of the communication rod 13 via the communication rod 13, and the internal space S2 of the second piston 20 passes through the second communication passage 15. It is communicated with the outside.

The first piston 20 is configured such that the lower end of the main body 21 formed in a hollow tubular shape is closed by the bottom portion 22. A through hole 22a is formed in the center of the bottom portion 22, and the communication rod 13 penetrates the through hole 22a. A sealing member 41 is provided on the inner peripheral surface of the through hole 22a, and the first piston 20 slides liquidtightly along the communication rod 13. Sealing members 42 and 43 are also provided on the inner peripheral surface of the cylinder 10 and the outer peripheral surface of the first piston 20, respectively, and the first piston 20 slides liquid-tightly along the inner surface of the cylinder 10. .. The stroke of the first piston 20 is defined by the distance between the steps formed on the upper inner surface of the cylinder 10 and the lower outer surface of the first piston 20 and capable of engaging with each other. This stroke can be set to a desired size by adjusting the height of the collar 46 interposed between the steps.

The second piston 30 is configured such that the upper end of the main body 31 formed in a hollow tubular shape is closed by a cap 32, and the communication rod 13 can be accommodated inside the main body 31. The cap 32 is attached to the center of the lower surface of the elevating table 2. Sealing members 44 and 45 are provided on the inner peripheral surface of the first piston 20 and the outer peripheral surface of the second piston 30, respectively, and the second piston 30 is liquid-tight along the inner surface of the first piston 20. Sliding on. The stroke of the second piston 30 is defined by the distance between the steps formed on the upper inner surface of the first piston 20 and the lower outer surface of the second piston 30 and capable of engaging with each other. This stroke can be set to a desired size by adjusting the height of the collar 47 interposed between the steps.

In the elevating bathing device 1 having the above configuration, when the pressurized working water is introduced into the first communication port 14a and the second communication port 15a from the state shown in FIG. 1, the internal space S1 of the cylinder 10 and the second communication port 15a are introduced. Working water is supplied to the internal space S2 of the first piston 20, both the first piston 20 and the second piston 30 are pushed up as shown in FIG. 2, and the lift 2 is raised. The working water can be supplied to only one of the first communication port 14a or the second communication port 15a, and can drive only one of the first piston 20 or the second piston 30.

FIG. 3 is an overall configuration diagram of the elevating bathing device 1. As shown in FIG. 3, the first communication port 14a of the cylinder 10 is supplied with water by the first water supply pipe 51 via the on-off valve 52, the first three-way valve 53, the on-off valve 54 and the pressurizing pump 55. It is connected to a working water supply source such as a pipe or a water storage tank, and by switching the first three-way valve 53 to the water supply side, pressurized tap water or the like is supplied. By switching the first three-way valve 53 to the drain side, the first communication port 14a can communicate with the drain pipe 59, and the working water in the cylinder 10 can be discharged from the drain pipe 59.

One side of the second water supply pipe 56 is connected to the second communication port 15a of the cylinder 10. An on-off valve 57 and a second three-way valve 58 are interposed in the second water supply pipe 56, and the other side of the second water supply pipe 56 is between the first three-way valve 53 and the on-off valve 54. It is connected to the first water supply pipe 51. By switching the second three-way valve 58 to the water supply side, the hydraulic water pressurized from the hydraulic water supply source is supplied to the second communication port 15a. The second three-way valve 58 is connected to the drain pipe 59 via the refill tank 61 by the connecting pipe 60, and by switching to the drain side, the second communication port 15a is connected to the drain pipe via the refill tank 61. The working water in the first piston 20 can be discharged from the drain pipe 59 by communicating with the 59. The hydraulic water is constantly stored in the water replenishment tank 61, and the water can be replenished in the first piston 20 in a state where the second three-way valve 58 is switched to the drainage side. The first three-way valve 53, the second three-way valve 58, and the on-off valves 52, 54, 57 are provided in the operation box 70.

In the elevating bathing device 1 having the above configuration, when it is desired to raise only the first piston 20, the first three-way valve 53 is switched to the water supply side with the on-off valves 52, 54, 57 open. , Switch the second three-way valve 58 to the drain side. As a result, as shown in FIG. 4A, working water is supplied into the cylinder 10 from the first communication passage 14, and the first piston 20 rises in the cylinder 10. The second piston 30 rises together with the first cylinder 20 without changing the relative positional relationship with the first cylinder 20.

As the first piston 20 rises, the amount of protrusion of the communication rod 13 into the first piston 20 decreases, so that the volume of the internal space S2 of the first piston 20 gradually increases. As a result, working water is replenished from the refill tank 61 shown in FIG. 3 into the first piston 20 via the second communication passage 15. In this way, by configuring the first piston 20 to be able to replenish water when the first piston 20 rises, it is possible to prevent the inside of the first piston 20 from becoming negative pressure, and the first piston 20 can be moved. It can be surely raised.

When lowering the first piston 10, both the first communication passage 14 and the second communication passage 15 are drained by switching the first three-way valve 53 shown in FIG. 3 from the water supply side to the drain side. Since it is communicated with the pipe 59, as shown in FIG. 4B, the weight of the elevating plate 2 promotes the discharge of working water from the internal space S1 of the cylinder 10 and the internal space S2 of the first piston 20. The first piston 10 can be smoothly lowered.

The vertical movement of only the second piston 30 can be performed by operating the second three-way valve 58 while maintaining the state in which the first three-way valve 53 is switched to the drain side. Further, by simultaneously switching the first three-way valve 53 and the second three-way valve 58 to the water supply side, the first piston 20 and the second piston 30 can be raised at the same time, and the first three-way valve 53 and the first three-way valve 53 and By simultaneously switching the second three-way valve 58 to the drain side, the first piston 20 and the second piston 30 can be lowered at the same time.

As described above, the elevating bathing device 1 of the present embodiment moves the first piston 20 and the second piston 30 up and down individually or simultaneously by operating the first three-way valve 53 and the second three-way valve 58. Therefore, the elevating stroke of the elevating table 2, which has been constant in the past, can be easily and surely changed according to the needs of the user.

For example, as shown in FIG. 5A, when the first piston 20 and the second piston 30 are in the ascending position, the elevating table 2 is configured to be flush with the upper end of the bathtub B and bathes. As shown in FIG. 5B, the bather U is bathed by lowering only the first piston 20 to the lowering position after mounting the person U on the elevating table 2 while lying on the stretcher S. It can be maintained at a bathing height suitable for.

On the other hand, as shown in FIG. 6A, when the bather U is mounted on the lift 2 while sitting on the wheelchair W, both the first piston 20 and the second piston 30 are lowered. By lowering to, as shown in FIG. 6B, the bather U can be maintained at a bathing height suitable for a sitting bath.

As described above, the elevating bathing device 1 of the present embodiment can easily and surely change the bathing height according to the posture of the bather. However, the elevating bathing device 1 is not used only when the bathing height is changed, and various variations are possible.

For example, with the first piston 20 in the ascending position and the second piston 30 in the descending position, the lift 2 is configured to be flush with the upper end of the bathtub, and from this state the second piston. By raising 30 to the ascending position, the elevating table 2 may be configured to be retractable above the bathtub. According to this configuration, the user can take a bath only by moving the first piston 20 up and down, while cleaning the bathtub has a rectangular plate shape as shown in FIG. 7A. The lift 2 formed and rotatably supported by the second piston 30 is raised by the drive of the second piston 30 and retracted above the bathtub B, and then retracted above the bathtub B, as shown in FIG. 7 (b). By rotating the elevating table 2 above the bathtub B to change the direction, an operator enters the bathtub B through a gap formed between the upper end edge of the bathtub B and the elevating table 2. The bottom surface of the bathtub B and the like can be easily cleaned.

1 Lifting bathing device 2 Lifting platform 10 Cylinder 12 Base 13 Communication rod 14 First communication passage 15 Second communication passage 20 First piston 22 Bottom 22a Through hole 30 Second piston 53 First three-way valve 58 2 three-way valve 60 refill tank

Claims (4)

An elevating bathing device in which an elevating table is supported so that it can move up and down in the bathtub.
With a cylinder that is at least partly buried in the bottom of the bathtub,
A cylindrical first piston housed in the cylinder so as to be vertically movable,
The first piston is provided with a second piston that is vertically movable and supports a lift.
The cylinder includes a base that closes the lower end and a tubular communication rod that extends from the base toward the upper end.
The first piston has a bottom portion that closes the lower end, and the communication rod penetrates a through hole formed in the bottom portion so that the first piston can slide along the communication rod.
An elevating bathing device further comprising a first communication passage that communicates with the outside in the cylinder and a second communication passage that communicates with the outside in the first piston via the communication rod. The elevating bathing device according to claim 1, wherein the second piston is formed in a tubular shape so as to accommodate the communication rod, and the upper end thereof is closed. The first passage and the second passage are connected to the working water supply source via the first three-way valve and the second three-way valve, respectively.
By switching the first three-way valve and the second three-way valve to the water supply side, the working water is supplied from the working water supply source to the cylinder and the first piston, respectively.
The elevating bathing device according to claim 1 or 2, wherein the working water is discharged from the cylinder and the first piston by switching the first three-way valve and the second three-way valve to the drain side. The second communication passage is connected to the refill tank via the second three-way valve.
The elevating bathing device according to claim 3, wherein by switching the second three-way valve to the drain side, the inside of the first piston is communicated with the water replenishment tank and water can be replenished in the first piston.

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