JP4166763B2 - Open bathtub - Google Patents

Description

  TECHNICAL FIELD The present invention relates to an open / close bathtub, and more particularly to an open / close bathtub suitable for bathing a person having a physical disability, an elderly person (hereinafter referred to as a disabled person), a healthy person, and the like.

  Conventionally, for example, in a bathtub for home use, if the height of the bathtub body is high when taking a bath, children, elderly people, or disabled people may not be able to enter the bathtub easily. The height of the bathtub main body with respect to the floor surface is lowered by dropping the bathtub main body into the recessed portion and installing it. As a result, anyone can easily bathe across the side wall of the bathtub body.

In addition, as a bathtub that has improved such drawbacks, Patent Document 1 below proposes a bathtub that is installed on the floor so that a disabled person or the like can be transferred to a bathtub from a wheelchair or a transfer stand. ing.
In such a bathtub, there is one in which an opening is formed in the side wall of the bathtub body and a door is provided so as to be slidable in the vertical direction with respect to the opening. When taking a bath for the handicapped, etc., the bathing chair on which the person with the handicapped is placed with the opening of the side wall opened is moved sideways on the rail base in the bathtub body from the transfer stand placed adjacent to the bathtub body. Then, the door portion is closed and the opening of the bathtub body is closed.
When a disabled person or the like is transferred into the bathtub body, the amount of hot water in the bathtub overflowing when the door is opened or closed is temporarily transferred to the tank, and the hot water in the tank is returned to the bathtub after the door is closed. Therefore, the adjustment of hot water in and out of the bathtub accompanying bathing and bathing by the bather is about half of the hot water stored in the bathtub at the time of bathing, greatly reducing the transfer of hot water accompanying bathing. be able to.
Japanese Patent Publication No. 6-7848

By the way, in the prior art in which a bathtub main body is dropped on the floor surface dug, there is a problem that it takes time and construction costs to dug the floor surface for dropping the bathtub main body.
In addition, in the prior art in which an opening is provided in the bathtub, the bather is transferred from the stretcher or the transfer stand to the rail base in the bathtub through the opening of the bathtub body while being placed on the bath chair. Therefore, a large transfer space is required for the bathroom and the bathtub main body, which is not suitable for a relatively small bathroom or bathtub for home use.

  The present invention has been made in consideration of such circumstances, and an object of the present invention is to provide an open / close bathtub capable of bathing without taking a large space.

The open / close bathtub according to the present invention opens and closes the opening by moving up and down along the height direction of the first side wall, the opening provided on the upper side of the first side wall of the bathtub main body a retractable bathtubs with a door portion for a retractable seat against rotatable around a vertical axis the opening, and a lower end vicinity of the opening of the seating portion in the bathtub body And a lift mechanism that moves up and down between the bottom wall of the bathtub body .
According to the present invention, the bather can be seated on the seat portion of the lift mechanism through the opening with the door portion opened, and the seat portion can be rotated and the bather can be transferred into the bathtub body, A bather can be made into a bathing state in a bathtub main body by closing an opening part with a door part. The height of the seating section can be adjusted in the bathtub body by driving the lift mechanism, so that persons with disabilities can easily bathe in hot water without requiring a large space in the bathroom or bathtub body. You can put it on. That is, a disabled person or the like can take a bath by an assistant, or a disabled person (or a healthy person) can take a bath by himself / herself. In addition, when bathing, hot water can be supplied in advance so that the hot water surface does not exceed the opening, and hot water may be added after the door is closed.

Moreover, the lift mechanism may be provided so that a movement along the 2nd side wall facing the opening part of the 1st side wall of a bathtub main body is possible.
By adjusting the position of the lift mechanism in advance so that the seating part provided on the lift mechanism is located on either the left or right side with respect to the opening, for example, the bather is inconvenienced on either the left or right side Even in such a case, the body can be rotated and moved into the bathtub body using the other half body that moves freely in the state of being seated on the seat.
In addition, the lift mechanism detects the drive unit, a cord-like body that raises and lowers the seating portion in the height direction of the bathtub body by driving the drive unit, and detects that the tension of the cord-like body has decreased, and stops the drive unit. It is preferable to have tension detecting means.
The seating part can be raised and lowered in the bathtub by driving the driving part of the lift mechanism to wind up or feed the cord-like body. Also, when the seating part is lowered, if the bather's lower limbs are caught between the seating part and the bottom wall of the bathtub body, the tension of the cord-like body is loosened. Can be stopped, and the problem of pinching the lower limbs of the bather can be reliably prevented.
Note that an appropriate linear member such as a wire or a chain can be adopted as the cord-like body.

In addition, a door portion locking mechanism that selectively takes a lock position for locking the door portion in a state where the opening portion is closed and a lock release position for allowing the door portion to move in a direction for opening the opening portion is provided. preferable.
By providing a door locking mechanism, when the bather leans against the door during bathing, the door does not open carelessly, so the hot water in the bathtub body flows out of the opening inadvertently. Can be prevented.
Moreover, the auxiliary drainage hole which discharges the hot water of the height exceeding an opening part may be provided in the bathtub main body.
When the bather is taking a bath or leaving, the hot water level can be reduced to the height of the opening by discharging some hot water from the auxiliary drain hole prior to opening the opening, and the door is opened. Therefore, it is possible to prevent hot water from overflowing from the opening to wet the caregiver or wash away the bather.
Further, it is preferable that a suspension mechanism having a load urging force balanced with the load of the door portion is connected to the door portion.
When opening and closing the door with respect to the opening, the load required to operate the door can be controlled by the suspension mechanism regardless of the movement position of the door, and the door always has a constant load. Therefore, it is possible to prevent inadvertent movement.

According to the present invention, a bathing person can be seated on the seating part of the lift mechanism during bathing, and the seating part can be rotated and transferred so that a disabled person or a healthy person can take a bath without requiring a large space. It can reduce the space in the bathroom and bathtub. Therefore, it can be used not only in a nursing facility but also in a bathroom at home. Moreover, a disabled person etc. can take a bath by a helper, or a disabled person etc. (and healthy person) can take a bath by himself.

Embodiments of the present invention will be described below with reference to the drawings. 1 to 11 show an open / close bathtub according to an embodiment of the present invention. FIG. 1 is a perspective view of the open / close bathtub with the door open, and FIG. 2 is a perspective view of the open / close bathtub with the door closed. FIG. 3 is a fragmentary plan view showing the door portion and its suspension mechanism, FIG. 4 is an explanatory view of a seal member provided on the inner surface of the door portion, and FIG. 5 shows a supply means for supplying air to the seal member. FIG. 6, FIG. 6 is a plan view of the main part showing the drive mechanism of the lift mechanism, FIG. 7 is a vertical cross-sectional view of the lift mechanism, FIG. 8 is a vertical cross-sectional view of the main part of the door locking mechanism, and FIG. The figure which shows the operation lever and locking state of a mechanism, (b) is a figure which shows the positional relationship of a top and a hole, FIG. 10 is a side view of a bathtub main body, FIG. 11 shows the state which a bather baths in and out of a bathtub main body It is explanatory drawing.
As shown in FIG. 1, the openable bathtub 10 according to the present embodiment includes a bathtub main body 11, an opening 12 provided in the upper half of the first side wall 11 a on the near side of the bathtub main body 11, and the first side wall 11 a. The door part 13 which can move along a height direction and opens and closes the opening part 12 is provided.
The bathtub body 11 has a substantially rectangular parallelepiped box shape with the upper part opened, and is formed by four side walls 11a to 11d and a bottom wall 11e. The opening 12 is formed by cutting out the first side wall 11a on the near side in FIGS. 1 and 2 from the upper side to the lower side of the side walls 11a to 11d in a rectangular shape. In the figure, the side walls 11a to 11d have a first side wall 11a and a second side wall 11c that are opposed to each other in a plan view, and a third side wall 11b and a fourth side wall 11d that are formed in a short side.

The door part 13 is for opening and closing the opening part 12, and is attached to the bathtub body 11 so as to be movable along the first side wall 11a. As shown in FIGS. 3 and 8, the door portion 13 is provided with cylindrical guide portions 15 at both ends via mounting plates 14, and the guide portions 15 are the third and fourth side walls 11 b of the bathtub body 11. It moves up and down along the support shafts 16 respectively provided in 11d. The door part 13 closes the opening part 12 by raising the guide part 15, and the opening part 12 is opened by descending from the closed position.
A suspension mechanism 17 is connected to the guide portion 15 provided in the door portion 13. As shown in FIGS. 3 and 8, the suspension mechanism 17 is provided in each of the left and right third and fourth side walls 11b and 11d (only one is shown in FIG. 3) adjacent to the first side wall 11a, and the door. The plate-shaped spiral spring 18 is connected to the guide portion 15 of the portion 13.
One end of the spiral spring 18 formed in a spiral shape is fixed to a support pin 19 provided on each of the side walls 11b and 11d, and the spiral spring 18 is wound around the support pin 19 a plurality of times and then the other outermost one is fixed. The end is fixed to the guide portion 15 via the bracket 20. The spring force (biasing force) is balanced with the weight of the door portion 13. Therefore, the spring load (load) of the spiral spring 18 is maintained equal to the load of the door portion 13 regardless of the lift position when the door portion 13 is moved up and down. As a result, when the door portion 13 is opened and closed with respect to the opening portion 12, it can be moved with a load equivalent to the load of the door portion 13, that is, with an equivalent force, over the entire stroke of the opening and closing operation.

In FIG. 3, a drain hole 21 is provided in the bottom wall 11 e of the bathtub body 11. Moreover, in FIG. 1, the subdrain hole 21a is provided in the upper end part both sides of the 2nd side wall 11c, and the overflow water of the bathtub main body 11 is drained.
Moreover, as shown in FIG. 4, in order to prevent the hot water of the bathtub main body 11 from leaking, the sealing member 22 is provided in the inner surface of the door part 13 of the bathtub main body 11 in substantially U shape or U shape. . As shown in FIG. 5, the seal member 22 is provided with pedal-type supply means 23 for supplying air.
The seal member 22 is made of a synthetic resin or rubber member that can be expanded and contracted, and when the door portion 13 is in a state of closing the opening portion 12, the seal member 22 expands when air is supplied to the third side wall 11 b and the fourth side wall. The hot water in the bathtub main body 11 fulfill | performs the sealing effect which does not leak from the opening part 12 by contacting with the end surface of 11d.
As shown in FIG. 5, the supply means 23 is provided at a lower position on the outer peripheral side of the bathtub body 11, and includes a pump part 24 and a pedal part 25. The pedal part 25 is stepped downward by a human foot or the like. When this is repeated a plurality of times, air is sent to the pump portion 24, and air is supplied to the hollow portion of the seal member 22 shown in FIG. 4 through an air supply path (not shown).

As shown in FIG. 1, the bathtub main body 1 is provided with a seating portion 29 for a bather to sit on and a lift mechanism 30 that raises and lowers the seating portion 29 within the bathtub main body 11.
The seating portion 29 is made of, for example, a synthetic resin and is formed in a disc shape, and is used by a bather or the like for sitting. The seat 29 is slidable in a direction (arrow a direction) that advances and retreats with respect to the opening 12 of the bathtub body 11, and is rotatable about the vertical axis (arrow b direction) around the center. Yes. Further, as will be described later, when not used, it can be folded (raised) in the direction of the second side wall 11c (in the direction of arrow c) (see FIG. 7).
As shown in FIGS. 6 and 7, the lift mechanism 30 mainly includes a drive unit 31, an elevating body 39 to which the seat 29 is attached, and the elevating body 39 according to the drive of the drive unit 31. And a wire 32 (cord-like body) that moves up and down along the height direction.

As shown in FIG. 6, the drive unit 31 is installed on a base 33 provided on the upper surface of the second side wall 11 c in the bathtub main body 11, and is driven via the control unit C with electric power from the battery 34. An electric actuator 31a is provided. The rod 31b moves forward and backward in the length direction (horizontal direction) of the second side wall 11c by the electric actuator 31a. As shown in FIG. 7, the control unit C and the battery 34 are installed above the drive unit 31 and are surrounded by a cover or the like so that water or the like does not enter.
In addition, the control part C drives the drive part 31 by selecting and operating the switch part provided in the operation panel P shown in FIG.1 and FIG.2 when raising / lowering the seating part 29. FIG. In addition, you may make it drive also by operating the remote controller which is not shown in figure.
As shown in FIG. 6, one end of the wire 32 is fixed to the fixed portion 33a of the base 33 and is rotatably supported on the movable pulley 35 and the base 33 provided at the tip of the rod 31b of the drive portion 31. It extends in the direction of the bottom wall 11e of the bathtub body 11 through the rollers 36 and 37 that are orthogonal to each other.
As shown in FIG. 7, a guide shaft 38 connected to the base 33 is fixedly arranged in the vertical direction in the cylindrical main body portion 30 </ b> A extending in the vertical direction of the lift mechanism 30. A cylindrical elevating body 39 guided in the vertical direction along the guide shaft 38 is provided so as to be vertically movable with a bearing interposed therebetween. The other end of the wire 32 extending downward from the rollers 36 and 37 is connected to an elevating body 39.

Under the elevating body 39, a receiving seat 28 for mounting the seating portion 29 is provided by a bracket 39a. The receiving seat 28 can be rotated, that is, can be raised and lowered (in the direction of the arrow c) with respect to the elevating body 39 via a hinge (not shown).
When the moving pulley 35 is pushed in accordance with the advance / retreat of the rod 31b of the driving unit 31, the lift mechanism 30 is pulled through the rollers 36 and 37 because the wire 32 having one end fixed by the fixing unit 33a is pulled in conjunction. Thus, the elevating body 39 is guided by the guide shaft 38 together with the receiving seat 28 and moves up and down with its own weight, so that the seat 29 moves up and down along the main body 30 </ b> A in the bathtub main body 11.
In addition, when the rod 31b of the drive unit 31 moves back and forth with a stroke of, for example, 150 mm, the seating portion 29 can be moved up and down by a substantially double distance (300 mm), and the moving distance of the seating portion 29 can be sufficiently increased with a short stroke. Can be secured.
A rotating shaft (not shown) is provided on the lower surface of the seating portion 29 and is slidably and rotatably fitted in a long hole (not shown) formed in the receiving seat 28. Therefore, as shown in FIG. 1, the seating portion 29 can rotate around the central axis of rotation with respect to the receiving seat 28 (in the direction of arrow b), and further slides in the direction of arrow a along the long hole of the receiving seat 28. It is supposed to be.

The lift mechanism 30 has guide means that moves in the length direction on the second side wall 11 c of the bathtub body 11. As shown in FIG. 7, the guide means includes rolling elements 41 and 42 that roll while sandwiching the upper part of the second side wall 11 c provided on the base 33 from the inside and the outside, and the second side wall provided on the lower part of the guide shaft 38. 11c and rolling elements 43 and 44 that roll on the bottom wall 11e. The rolling element 43 is rotatably supported by the lower part of the guide shaft 38 in contact with the second side wall 11c, and the rolling element 44 is in contact with the bottom wall 11e at the lower end of the guide shaft 38 so as to be rotatable. It is supported. Each of the rolling elements 41 to 44 has a rolling element shape that rotates about an axis.
In the lift mechanism 30, the rolling elements 41 and 42 roll on the upper part of the second side wall 11c in the length direction, and the rolling elements 43 and 44 roll on the lower part of the second side wall 11c and the bottom wall 11e, respectively. Thus, the entire lift mechanism 30 moves along the length direction between the one end side and the other end side of the second side wall 11c. Therefore, the seating portion 29 can be moved in the left-right direction with respect to the opening 12 of the bathtub body 11.
The lift mechanism 30 can be fixed by the fixing means 80 so as not to move unnecessarily when a force in the moving direction is applied carelessly. The entire lift mechanism 30 is surrounded by a cover (not shown) so that water and the like do not enter. further,

Further, as shown in FIG. 6, the lift mechanism 30 is provided with a tension detection means 50 that detects the tension of the wire 32 when the drive unit 31 drives the wire 32. The tension detecting means 50 includes a responding body 51 that abuts on a wire 32 stretched between the movable pulley 35 and the roller 36, and a limit switch 55 that is interlocked according to the movement of the responding body 51.
The responding body 51 is a plate-like member, and an intermediate portion thereof is pivotally supported by a pin 52 so as to be swingable. The idler 53 that contacts the wire 32 is rotatably supported at the tip of the responding body 51, and one end of the spring 54 is connected to the other end side so that the idler 53 of the responding body 51 is pressed against the wire 32 (clockwise). Rotating direction).
In this responding body 51, since the wire 32 is normally stretched with a predetermined tension, the idler 53 comes into contact with the wire 32 by a spring force, so that the other end of the responding body 51 is moved away from the limit switch 55. is there. When the tension of the wire 32 is reduced and loosened, the responding body 51 is rotated clockwise by the urging force of the spring 54, and the other end of the responding body 51 is operated by pushing the limit switch 55. The drive unit 31 is stopped.

Moreover, in the bathtub main body 11, when a bather carelessly pushes the door part 13 at the time of bathing and the door part 13 falls, the hot water in the bathtub main body 11 may flow out of the opening part 12, Therefore The door part 13 Is provided with a door locking mechanism 60 that locks the door 13 so that it does not inadvertently descend when it rises to a position that closes the opening 12.
For example, as shown in FIG. 8, the door locking mechanism 60 has an operation lever 61 projecting upward from the fourth side wall 11d, a spring material 66 for holding the operation lever 61 in a locked position, and a push on the operation lever 61. And a lock member 62 that unlocks the door 13 by moving.
A lock member 62 having a substantially L shape in side view is supported on the guide portion 15 that slides along the support shaft 16 to raise and lower the door portion 13 so as to be rotatable around a fulcrum 62a. A claw 63 provided at the tip of the arm portion can be engaged with and disengaged from an engagement portion 64 fixed to the support shaft 16. The lower end of the operation lever 61 can be brought into contact with the other interlocking arm portion 62 b of the lock member 62. The claw 63 and the guide portion 15 are connected by a spring member 66, and the claw 63 of the lock member 62 is urged in a locking direction by engaging with the engagement portion 64.

Then, with the claw 63 engaged with the engaging portion 64 of the support shaft 16, the door portion 13 connected to the lock member 62 via the guide portion 15 is locked in the closed state, and the operation lever 61 is pushed down. As a result, the interlocking arm portion 62b of the lock member 62 is pushed, and the lock member 62 rotates counterclockwise against the urging force of the spring member 66 around the fulcrum 62a. The lock member 62, the guide member 15, and the door portion 13 can be lowered.
Further, as shown in FIGS. 8 and 9A, the operation lever 61 can be moved up and down through the holes of the first fixing plate 82 and the second fixing plate 83, and fixed to the operation lever 61 in the middle thereof. A pair of spring members 85 are connected between the arm portion 84 and the first fixing plate 82. The operation lever 61 is formed with a top 61a protruding therefrom, and the second fixing plate 83 has a hole 83a into which the top 61a can be inserted.
As shown in FIG. 9B, the operation lever 61 is normally held at a position where the top 61a is separated from the hole 83a of the second fixing plate 83 by about 90 ° by the biasing force of the pair of spring members 85, 85. In this state, the operation lever 61 is locked so that it cannot be pushed down. Then, by rotating the operation lever 61 by 90 ° against the urging force of the pair of spring members 85, 85, the top 61 a can be fitted into the hole 83 a of the second fixing plate 83 and can be pushed down. The interlocking arm part 62b can be pushed.

In FIG. 8, if the door part 13 is raised from the 1st side wall 11a side to the raising position which closes the opening part 12, the guide part 15 of the door part 13 will also raise integrally along the support shaft 16 in connection with this. When the claw 63 of the lock member 62 climbs over the engagement portion 64 provided on the upper portion of the support shaft 16 and engages with the claw 63 of the lock member 62 when the door portion 13 is raised to the position where the opening portion 12 is closed, the engagement portion 64 is moved by the claw 63. The door 13 is locked by being locked.
Next, in order to release the locked state of the door portion 13, when the operation lever 61 is rotated 90 ° in the circumferential direction against the urging force of the pair of spring members 85, 85 in FIG. As shown in (b), the frame 61a is inserted into the hole 83a of the second fixing plate 83, and the operation lever 61 can be pushed down. When the operation lever 61 is pushed down, the lower end pushes the connecting shaft portion 62b of the lock member 62 to rotate the lock member 62 counterclockwise around the fulcrum 62a. 13 descents are possible.
Note that the lowering range of the operation lever 61 is limited by the pair of spring members 85 and 85 so that the top 61a does not fall out of the hole 83a.

Furthermore, when hot water is filled in the bathtub main body 11, the auxiliary drainage for lowering the hot water in the bathtub main body 11 to the height of the opening 12 before the door 13 is lowered and the opening 12 is opened. A hole 71 is provided (see FIG. 10). The auxiliary drain hole 71 is provided at a height of about half of the height direction of the bathtub body 11.
The auxiliary drain hole 71 can be opened and closed by a gate valve operating portion 72 provided in the upper part of the bathtub body 11.

Since the open / close bathtub 10 according to the present embodiment is configured as described above, the operation method thereof will be described below.
First, when bathing, as shown in FIG. 2, the bathtub body 11 has the door portion 11 in the raised position and the opening portion 12 is closed. In this state, the claw of the door portion locking mechanism 60 is shown in FIG. Assume that 63 is engaged with the engaging portion 64 and the door portion 13 is locked. And the hot water is kept in the state which filled the inside of the bathtub main body 11 to the lower surface of the opening part 12. FIG.
In this state, as shown in FIGS. 8 and 9, in the door portion locking mechanism 60, when the operation lever 61 is rotated 90 ° and pushed down, the top 61a coincides with the hole 83a of the second fixing plate 83 and is in the hole 83a. Enter. As a result, the connecting shaft portion 62b of the locking member 62 is pushed, and the locking member 62 rotates counterclockwise around the fulcrum 62a against the urging force of the spring member 66, so that the claw 63 is disengaged from the engaging portion 64. The door part 13 will be in a descent-able state.
When the door part 13 is pushed down manually, the spring force of the spiral spring 18 of the suspension mechanism 17 and the weight of the door part 13 are balanced, so the door part 13 is lowered with a predetermined force to open the opening part 12. You can open it. The lock member 62 moves integrally with the guide member 15 below the engaging portion 64 as the door portion 13 is lowered.

Here, the bather alone or with the assistance of the assistant sits on the seat 29 as shown in FIG.
At this time, the seating portion 29 is slidable in the front-rear direction of the bathtub body 11, and the bather H1 (or an attendant) opens the seating portion 29 to an appropriate position (for example, a stroke of about 170 mm at the maximum). The bather H1 can be seated before entering the bathtub main body 11 by sliding to the outside or the vicinity thereof.
Then, the bather H1 slides the seat 29 while changing the body direction while rotating the seat 29 around the vertical axis, and puts the lower body into the bathtub body 11, so that the two-dot chain line in FIG. In addition, the bather H2 can put the entire body into the bathtub body 11. At this time, if the bather cannot change his / her own direction, the attendant can put the bather's body and feet into the bathtub body 11 while moving the bather's body and legs.
Here, for example, when the bather is a handicapped person and the left half is inconvenient, the lift mechanism 30 may be moved in advance so that the seat 29 is positioned on the right side with respect to the opening 12. In this case, the body can be rotated and moved into the bathtub main body 11 by pushing the right side wall 11b of the bathtub main body 11 with a free right hand and right foot. On the contrary, if the right half of the bather is inconvenient, the lift mechanism 30 may be moved in advance so that the seat 29 is positioned on the left side with respect to the opening 12.

Thus, in any case where the bather changes the direction by himself or the bather changes the direction of the bather, the height is about half that of the bathtub body 11 with the opening 12 opened. Therefore, the direction of the body and legs can be easily changed through the opening 12. Thereafter, the bather H2 enters the bathtub main body 11 as shown in FIG. 11, and then the door 13 is lifted to a highest position as shown in FIG.
By raising the door 13, the guide member 15 rises along the support shaft 16, and the lock member 62 counterclockwise against the urging force of the spring member 66 with the claw 63 abutting against the engaging portion 64. , The claw 63 gets over the engaging portion 64. Then, the claw 63 is locked to the engaging portion 64 by the biasing force of the spring member 66. Therefore, by manually pushing up the door portion 13, the lock member 62 automatically returns to the locked state.
Then, when hot water is added and the amount of water is increased to above the bathtub body 11, hot water supply can be stopped and bathing can be performed. Even during this bathing, if necessary, the height of the seating portion 29 can be adjusted by driving the lift mechanism 30.
When the bathing is finished and the bath body 11 exits, first, half of the hot water is discharged from the auxiliary drain hole 71. Then, as described above, the operation lever 61 may be rotated and pushed to release the lock of the lock member 62 and to lower the door portion 13.
When the operation lever 61 is released, the top 61a is lifted by the urging force of the pair of spring members 85, 85 and is removed from the hole 83a, and rotated about 90 ° to return to the initial position.

As described above, according to the openable bathtub 10 according to the present embodiment, the opening 12 that can open and close the door portion 13 is provided, thereby ensuring the depth of the bathtub main body 11 without digging the bathtub main body 11 under the floor. Can be installed and bathed. Moreover, when the door portion 13 is opened, the bather can be easily put into the bathtub main body 11 by changing the posture from the outward sitting state by utilizing the rotation and slide of the seat portion 29.
Moreover, since bathing and bathing can be performed without using a wheelchair for bathing, even if the bathroom or bathtub main body 11 is narrow or the space is small, the handicapped person can use the helper's hand, or the handicapped person (or the healthy person) is independent. You can bathe in and out. In addition, since the height of the seating portion 29 can be adjusted in the bathtub body 11 by driving the lift mechanism 30, it can be used for bathing by persons with disabilities and the like.

In addition, since the lift mechanism 30 can be moved in the left-right direction with respect to the opening 12 and the position can be adjusted, even when the bather is half-free, the operation for bathing can be easily performed, so that the usability is improved.
On the other hand, when the seating portion 29 is lowered during bathing, even if the lower limb of the bather is sandwiched between the seating portion 29 and the bottom wall 11e, the tension of the wire 32 is loosened, so that the tension detecting means 50 can detect this. Therefore, the drive unit 31 can be stopped and safety can be ensured.
Furthermore, since the door portion locking mechanism 60 is provided, the lock mechanism 62 can prevent the door portion 13 from being inadvertently lowered during bathing, and can be automatically locked by the lock mechanism 62 when the door portion 13 is raised.
Since the suspension mechanism 17 is configured to suspend the door portion 13 in balance with the weight of the door portion 13, when the door portion 13 is moved up and down, the opening / closing operation is performed with a force similar to the weight of the door portion 13. Can be done.

  In the above-described embodiment, the example in which the seal member 22 is disposed on the door portion 13 has been described. Moreover, although the example which expanded by air supply and performed the sealing effect was shown, other sealing materials, such as packing, can also be used. An electric actuator is used as the drive unit 31 of the lift mechanism 30, a cord-like body made of the wire 32 is used as a power transmission body, the tension detecting means 50 is provided, and rolling elements 41 to 44 as guide means are provided. Although the door part locking mechanism 60 etc. are used, those specific structures are not limited to the example of illustration.

It is a perspective view of the state where the door part of the opening-and-closing type bathtub by an embodiment of the invention was opened. It is a perspective view of the opening-and-closing type bathtub which closed the door part. It is a principal part fracture | rupture top view which shows a door part and its suspension mechanism. It is explanatory drawing which shows the sealing member provided in the inner surface of the door part, Comprising: (a) is sectional drawing, (b) is a partial front view. It is a figure which shows a supply means for supplying air to a sealing member. It is a principal part top view which shows the drive mechanism of a lift mechanism. It is a longitudinal cross-sectional view of a lift mechanism. It is a principal part longitudinal cross-sectional view of a door part locking mechanism. It is explanatory drawing which shows the operation lever of a door part locking mechanism, and a locking state, Comprising: (a) is a block diagram of an operation lever, (b) is a figure which shows the positional relationship of a top and a hole. It is a side view of a bathtub main body. It is explanatory drawing which shows the process in which a bather bathes in a bathtub main body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Open / close-type bathtub 11 Bath body 11a 1st side wall 11c 2nd side wall 12 Opening part 13 Door part 17 Lifting mechanism 18 Plate-like spring member 29 Seating part 30 Lifting mechanism 31 Drive part 32 Wire (cord-like body)
50 Tension detection means 60 Door locking mechanism
71 auxiliary drain hole

Claims (6)

Opening and closing provided with a bathtub main body, an opening provided on the upper side of the first side wall of the bathtub main body, and a door for moving up and down along the height direction of the first side wall to open and close the opening A bathtub,
A seating portion that is rotatable about a vertical axis and is movable back and forth with respect to the opening;
Retractable bath, characterized in that it comprises a lifting mechanism for lifting the the seating portion between the bottom wall near the lower end and said bath tank body of the opening in the bathtub body.   The open / close tub according to claim 1, wherein the lift mechanism is movably provided along a second side wall facing the opening of the bathtub body.   The lift mechanism detects a drive unit, a cable-like body that raises and lowers the seating part in the height direction of the bathtub body by driving the drive unit, and detects that the tension of the cable-like body has decreased, The open / close bathtub according to claim 1 or 2, further comprising tension detecting means for stopping.   A door portion locking mechanism that selectively takes a lock position for locking the door portion in a state in which the opening portion is closed and a lock release position for allowing the door portion to move in a direction to open the opening portion. The openable tub according to any one of claims 1 to 3.   The open / close-type bathtub according to any one of claims 1 to 4, wherein the bathtub body is provided with an auxiliary drainage hole for discharging hot water having a height exceeding the opening. The open / close bathtub according to any one of claims 1 to 5, wherein a suspension mechanism having a biasing force of a load balanced with a load of the door portion is connected to the door portion.

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