JP2018121844A - Bathing assistance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathing assistance device which can improve mobility, can be installed on a bathtub of various sizes, and ensures safety in moving.SOLUTION: A bathing assistance device includes: a body placed at a prescribed position on a rim of a bathtub; a seat surface part provided on the body; and an ascending and descending device for ascending and descending the seat surface part in a first direction between a seat surface ascending and descending upper limit position where the seat surface part is not positioned on the rim in a top view and is positioned above the rim in a side view and a seat surface ascending and descending lower limit position on a bathtub bottom part side. The bathing assistance device includes a slide moving means for slidably moving the seat surface part in a second direction between a seat surface transfer position where at least a part of the seat surface part is positioned on the rim in the top view and the seat surface part is positioned closest to a rim side in the top view and the seat surface ascending and descending upper limit position. The body has width adjusting means which can adjust a width of the body in the second direction, and when the width is adjusted by the width adjusting means, a sliding moving distance of the seat surface part is not changed.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bathing assistance device.

  There is a bathing assistance device that is installed on the upper surface of a rim of a bathtub, the seat surface is raised and lowered, and supports standing in the bathtub (for example, Patent Document 1). In this bathing assistance device, a user (a person being assisted) sits from the washing area side, crosses the rim of the bathtub, and then moves laterally to the center of the seat surface that moves up and down. Then the seating surface descends and you can take a bath.

JP 2000-237272 A

However, when moving laterally from the seat surface position (seat surface transfer position) on the washing area to the seat surface position (upper limit for seat surface lifting / lowering position) that can be lifted or lowered, Burdens to move sideways by itself. Therefore, reduction of these assistance loads is desired. Therefore, it is conceivable to provide a mechanism that can slide the seat surface. Thereby, a supporter can slide to a raising / lowering position only by pushing the person to be supported on a seat surface, without raising a person to be supported.
However, during the lateral movement from the seating surface transfer position of the seating surface to the seating surface lifting upper limit position, the attendant may fall from the seating surface. I want to support the lateral movement by sliding while supporting. Therefore, it is desirable that the time for assisting the lateral movement by the slide movement is as short as possible. That is, the moving distance from the seating surface transfer position to the seating surface raising / lowering upper limit position should be as short as possible.
On the other hand, since there are bathtubs of various sizes, there is a desire to be able to install a bathing assistance device regardless of the size of the bathtub.
However, normally, when the bathing assistance device can be installed in various sized bathtubs, the movement distance from the seat surface transfer position to the seat surface elevation upper limit position is short and large in the case of a small bathtub. In the case of a bathtub, the movement distance from a seat surface transfer position to a seat surface raising / lowering upper limit position becomes long. Therefore, especially in the case of a large bathtub, the movement distance from the seating surface transfer position to the seating surface elevating upper limit position becomes longer. Therefore, safety during movement from the seating surface transfer position to the seating surface elevating upper limit position should be ensured. Becomes difficult.
Therefore, in the present invention, even if the mobility from the seat surface transfer position to the seat surface up / down upper limit position is improved, and it can be installed in various sizes of bathtubs with different widths, the seat surface transfer It aims at providing the bathing assistance apparatus which can ensure the safety | security at the time of the movement from a position to a seat surface raising / lowering upper limit position.

  The bathing assistance apparatus according to the first aspect of the present invention is such that the main body placed at a predetermined position on the rim of the bathtub, the seat surface portion provided on the main body, and the seat surface portion are not positioned on the rim in a top view. And the raising / lowering device which raises / lowers in the 1st direction within the raising / lowering section between the seat surface raising / lowering upper limit position located above the rim in the side view, and the seat surface raising / lowering lower limit position on the bathtub bottom side, Prepare. The bathing assistance device is configured such that at least a part of the seat surface portion is positioned on the rim in a top view, and the seat surface transfer position in which the seat surface portion is closest to the rim side in the top view. And a slide moving means for slidably moving in a second direction intersecting the first direction between the seat surface raising / lowering upper limit position. The main body includes a width adjusting unit capable of adjusting a width of the main body along the second direction, and the slide moving unit is configured to move the slide distance of the seating surface portion even if the width is adjusted by the width adjusting unit. Is configured so as not to change. According to 1st invention, since a main body is equipped with the width adjustment means which can adjust the width | variety of the main body along a 2nd direction, it can install in the bathtub of various magnitude | sizes from which the width | variety of a bathtub differs. Furthermore, the slide moving means is configured so that the slide moving distance of the seat surface portion does not change even if the width of the main body is adjusted by the width adjusting means, so that the slide moving means can be installed in bathtubs of various sizes. Even if it exists, the safety | security at the time of the movement from a seat surface transfer position to a seat surface raising / lowering upper limit position can be ensured. Therefore, even if the mobility from the seat surface transfer position to the seat surface up / down upper limit position is improved, and it can be installed in various sizes of bathtubs with different widths, the seat surface transfer position can be It is possible to ensure safety when moving to the upper limit position.

  In a second aspect based on the first aspect, the main body protrudes forward from one end side in the second direction and protrudes forward from the other end side in the second direction. A second arm portion provided, wherein the width adjusting means changes a distance along the second direction between the first arm portion and the second arm portion; Even if the width is adjusted by the adjusting means, the relative positional relationship between the position of the seat surface portion and the position of the first arm portion at the seat surface transfer position is not changed. And According to the second invention, even if the width of the main body is adjusted by the width adjusting means, the relative positional relationship between the position of the seat surface portion and the position of the first arm portion at the seat surface transfer position does not change. Since it is comprised, even if it adjusts the width | variety of a main body largely with the width | variety adjustment means according to the magnitude | size of a bathtub, the seat surface transfer position on which a caregiver sits does not become far. Therefore, it can install in the bathtub of various magnitude | sizes, without reducing transferability.

According to a third invention, in the second invention, in the state where the main body is placed on the bathtub in a state where the width that can be adjusted by the width adjusting means is the maximum width, When the seat surface portion is lowered from the seat surface ascending / descending upper limit position, the seat surface portion is configured to move toward the center in the second direction of the bathtub.
According to the third invention, the elevating device is configured so that the seat surface portion is moved from the seat surface ascending / descending upper limit position in a state where the main body is placed on the bathtub with the maximum width adjustable by the width adjusting means. Since the seat surface is configured to move toward the center of the second direction of the bathtub when lowered, the seat surface even if the sliding distance of the seat surface is constant regardless of the width of the body. A raising / lowering lower limit position is located in the center side in the 2nd direction of a bathtub. Therefore, even when the width that can be adjusted by the width adjusting means is in the maximum width state, it is possible to bathe in a comfortable posture during bathing.

In a fourth aspect based on the third aspect, in the state where the main body is placed on the bathtub in a state where the width that can be adjusted by the width adjusting means is the minimum width, The seat surface portion is configured to move toward the center of the bathtub in the second direction when the seat surface portion is lowered from the seat surface up / down upper limit position.
According to the fourth aspect of the present invention, in the state where the width that can be adjusted by the width adjusting means is the minimum width and the main body is placed on the bathtub, the lifting device is configured to move the seat surface portion from the seat surface lifting upper limit position. When lowered, the seat surface is configured to move toward the center in the second direction of the bathtub. Therefore, even if the slide movement distance of the seat surface portion is shortened as much as possible in order to improve safety at the time of slide movement, the seat surface elevation lower limit position is located at the center side in the second direction of the bathtub. Even if the adjustable width is the minimum width, it is possible to bathe in a comfortable posture when bathing.

A fifth invention according to any one of the second to fourth inventions, further comprising a side cue portion provided on the second arm portion, wherein the seat surface portion at the seat surface transfer position in the second direction. And the position of the side clue part, the position of the seat surface part in the seat surface ascending / descending upper limit position, and the side clue part on the one end side in the second direction. It is formed so that it may incline toward.
According to 5th invention, it further has the side cue part provided in a 2nd arm part, and it is between the position of the seat surface part in a seat surface transfer position in the 1st direction, and the position of a side cue part. There is a position of the seat surface portion at the seat surface ascending / descending upper limit position, and the side cue portion is formed to be inclined upward and toward one end side in the second direction. Therefore, in order to fill the gap between the seat surface portion and the arm portion, even if the seat surface portion is provided with a flap, and the flap is placed on the arm portion, the bathtub is not hindered. Even if the size of the person is large, the person being assisted can safely perform the slide movement by using the side clue part during the slide movement.

In a sixth aspect based on the fifth aspect, the side clue is configured such that the side cue portion is in contact with the bottom surface of the second arm portion, and the side surface portion is in contact with the side surface on the other end side of the second arm portion. And an upper portion located above the second arm portion, the upper portion being formed to be inclined upward and toward the one end side in the second direction, The clue part is fixed to the second arm part at the bottom part.
According to the sixth aspect of the present invention, the upper part of the side cue part is formed so as to incline upward and toward one end in the second direction, and the side cue part is the bottom surface of the side cue part. Since the portion is fixed to the second arm portion, the strength of the side clue portion can be ensured by receiving the load received by the side clue portion on the bottom surface of the second arm portion. Furthermore, since the side cue portion is fixed to the second arm portion through the outside of the second arm portion (the other end side of the main body), it interferes with other members (for example, a flap or a lifting device). Can be prevented.

  According to the present invention, the sliding movement of the seat surface portion improves the mobility from the seat surface transfer position to the seat surface raising / lowering upper limit position, and further enables installation in bathtubs of various sizes with different bathtub widths. Even so, it is possible to provide a bathing assistance device capable of ensuring safety during movement from the seat surface transfer position to the seat surface up / down upper limit position.

Fig.1 (a)-FIG.1 (d) are typical perspective views which illustrate the bathing assistance apparatus which concerns on embodiment. FIG. 2A and FIG. 2B are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment. FIG. 3A and FIG. 3B are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment. FIG. 4A and FIG. 4B are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment. FIG. 5A and FIG. 5B are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment. FIG. 6A and FIG. 6B are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment. Fig.7 (a)-FIG.7 (g) are schematic diagrams which show the usage example of the bathing assistance apparatus which concerns on embodiment. Fig.8 (a) and FIG.8 (b) are schematic diagrams which show the usage example of the bathing assistance apparatus which concerns on embodiment. FIG. 9A and FIG. 9B are schematic views illustrating the main body of the bathing assistance apparatus according to the embodiment. Drawing 10 (a)-Drawing 10 (d) are mimetic diagrams illustrating the seat part and slide base of the bathing assistance device concerning an embodiment. Fig.11 (a)-FIG.11 (d) are schematic diagrams which illustrate the side cue part of the bathing assistance apparatus which concerns on embodiment.

  Hereinafter, embodiments will be described with reference to the drawings. In the drawings, the same elements are denoted by the same reference numerals.

Fig.1 (a)-FIG.1 (d) are typical perspective views which illustrate the bathing assistance apparatus which concerns on embodiment.
FIG. 1A and FIG. 1B illustrate a state where the bathing assistance device 110 is placed on the upper part of the bathtub 150. FIG.1 (c) and FIG.1 (d) have illustrated the bathing assistance apparatus 110. FIG. The bathing assistance device 110 has a seat surface transfer position state ST1 and a seat surface ascending / descending upper limit position state ST2. Fig.1 (a) and FIG.1 (c) have illustrated the seat surface transfer position state ST1. FIG.1 (b) and FIG.1 (d) have illustrated seat surface raising / lowering upper limit position state ST2.

  The bathing assistance device 110 includes a main body 10 and a seat surface portion 15.

  The main body 10 is placed at a predetermined position on the rim of the bathtub 150. For example, the bathtub 150 includes first to fourth rims 151a to 151d. The lengths of the first rim 151a and the second rim 151b are longer than the lengths of the third rim 151c and the fourth rim 151d, respectively. For example, the bathtub 150 is substantially rectangular.

  The main body 10 includes a first arm part 11, a second arm part 12, and a connection part 13. The second arm portion 12 is separated from the first arm portion 11 in the width direction Dw (second direction). The width direction Dw corresponds to, for example, the width direction (short direction) of the bathtub 150. The first arm part 11 and the second arm part 12 extend along the length direction (longitudinal direction) of the bathtub 150. This direction intersects with the width direction Dw. The connection part 13 is connected to one end of the first arm part 11 and one end of the second arm part 12. When the main body 10 is placed at a predetermined position on the rim of the bathtub 150, the first arm portion 11 is located on the first rim 151a, and the second arm portion 12 is located on the second rim 151b.

  The main body 10 has a width adjusting means described later. The width adjusting means can adjust the width of the main body 10 (length along the width direction Dw). By adjusting the distance along the width direction Dw between the first arm portion 11 and the second arm portion 12 by the width adjusting means, the width of the main body 10 changes. The width of the main body 10 is adjusted according to the width of the bathtub 150.

  As will be described later, the width of the bathtub 150 (the length along the width direction Dw) varies. Since the width of the main body 10 is adjustable, the bathing assistance device 110 can be installed in various bathtubs 150.

  The bathing assistance device 110 includes slide moving means (the slide base 16 and the base 16A). A slide base 16 is provided on the base 16 </ b> A, and a seat surface portion 15 is attached on the slide base 16. The seat surface portion 15 is slidable on the slide base 16 along the width direction Dw. The base 16A can be connected to the main body 10 and can be detached from the main body 10. The base 16A can be expanded and contracted by width adjustment by the width adjusting means.

  As will be described later, mounting portions 11A and 11B (see FIG. 10A) are provided on the main body 10, and the base 16A is suspended from the first cable 16a and the second cable 16b connected to the mounting portions 11A and 11B. It is done. The slide base 16 is attached to the base 16 </ b> A, and the seat surface portion 15 is attached to the top of the slide base 16. The seat portion 15 is detachably provided on the main body 10 via the first cable 16a, the second cable 16b, the base 16A, and the slide base 16.

  The positional relationship between the bathtub 150 and the washing place changes depending on the installation state of the bathtub 150 in the bathroom. In the example shown in FIG. 1A, there is a washing place on the front side of the first rim 151a. In this case, the person being assisted enters the bathtub 150 across the first rim 151a. In this case, the base 16A (the seat surface portion 15 and the slide base 16) is attached to the main body 10 so that the seat surface portion 15 is disposed on the first rim 151a side.

  On the other hand, in another example, there is a washing place on the back side of the second rim 151b in FIG. In this case, the person being assisted enters the bathtub 150 across the first rim 151b. In this case, the base 16A (the seat surface portion 15 and the slide base 16) is attached to the main body 10 so that the seat surface portion 15 is disposed on the second rim 151b side.

  Hereinafter, the case shown in FIG. 1A (the case where there is a washing place on the front side of the first rim 151a and the seat surface portion 15 is arranged on the first rim 151a side) will be described.

  The seat portion 15 is movable along the width direction Dw (arrow AA) with respect to the main body 10. The position of the seat surface portion 15 in the seat surface transfer position state ST1 is different from the position of the seat surface portion 15 in the seat surface ascending / descending upper limit position state ST2. The seat surface portion 15 is between the seat surface transfer position P1 (see FIGS. 1 (a) and 1 (c)) and the seat surface up / down upper limit position P2 (see FIGS. 1 (b) and 1 (d)). A sliding movement is possible along the arrow AA. Furthermore, as will be described later, the seat surface portion 15 can move up and down between a seat surface elevating upper limit position P2 and a seat surface elevating lower limit position P3 (see FIGS. 3B and 4B). The position of the seat surface portion 15 in the vertical direction Dv (first direction) is variable.

  The person being assisted sits on the seat surface portion 15 at the seat surface transfer position P1. Thereafter, the person being assisted straddles the rim of the bathtub 150. Thereby, a person's leg enters into the inside of a bathtub. Then, by the sliding movement of the seat surface portion 15 from the seat surface transfer position P1 to the seat surface lifting upper limit position P2, the body (buttock) of the person being moved moves to the seat surface lifting upper limit position P2. Thereafter, the body of the person being assisted enters the hot water of the bathtub 150 by the movement of the seat surface portion 15 from the seat surface ascent / descent upper limit position P2 to the seat surface ascent / descent lower limit position P3.

  In the embodiment, as will be described later, even if the width of the main body 10 is adjusted by the width adjusting means, the sliding movement distance of the seat surface portion 15 (for example, between the seat surface transfer position P1 and the seat surface up / down upper limit position P2). The distance is unchanged.

  According to the embodiment, by providing the slide moving means, the person being assisted can be moved from the seat surface transfer position P1 to the seat surface ascending / descending upper limit position P2 simply by pressing a part of the body of the seat surface or the person being assisted. The mobility from the seat surface transfer position P1 to the seat surface up / down upper limit position P2 can be improved. Furthermore, since the width | variety of the main body 10 can be adjusted by providing a width adjustment means, it can install in the bathtub 150 of various magnitude | sizes. Even in such a case, since the slide moving means is configured so that the slide moving distance of the seat surface portion 15 does not change even if the width of the main body 10 is adjusted by the width adjusting means, the seat surface transfer position P1. Can be secured during the movement from the seat up / down upper limit position P2. According to the embodiment, even when the mobility from the seat surface transfer position P1 to the seat surface ascending / descending upper limit position P2 is improved, the bathtub can be installed in various sized bathtubs, Safety during movement from the seat surface transfer position P1 to the seat surface up / down upper limit position P2 can be ensured.

  When the person being assisted is sitting on the seat surface part 15 at the seat surface elevation upper limit position P2, the connecting portion 13 of the main body 10 is located behind the person being assisted. The direction from the connecting portion 13 toward the seat surface up / down upper limit position P2 corresponds to the front.

  The first arm portion 11 of the main body 10 is provided to protrude forward from one end side in the width direction Dw (second direction) of the main body 10 (connecting portion 13). The second arm portion 12 is provided to protrude forward from the other end side in the width direction Dw of the main body 10 (connecting portion 13).

  When the bathing assistance device 110 is placed on top of the bathtub 150, the orientation of the bathing assistance device 110 may be either front or back. The base 16 </ b> A on which the slide base 16 and the seat surface portion 15 are placed is detachable from the main body 10. By attaching / detaching the base 16 </ b> A to the main body 10, the slide seat portion 16 and the seat surface portion 15 are also attached / detached to / from the main body 10. The base 16A can be attached in either the front or rear direction. When the mounting direction of the base 16A changes, the direction of the seating surface portion 15 also changes. Based on the position of the washing place provided beside the bathtub 150, the mounting direction of the base 16A is set.

  The seat surface portion 15, the slide base 16, and the base 16A have a symmetric configuration. Regardless of whether the mounting position of the base 16A is front or rear, the person being assisted can stably sit on the seating surface portion 15.

  In the example shown in FIGS. 1A to 1D, a side clue portion 30 (for example, a handrail) is further provided. In addition, rear clues 40 and 40A are also provided. By such a clue part (the side clue part 30, the rear clue parts 40 and 40A), higher safety can be obtained in a series of operations at the time of transfer from the seat surface transfer position P1 to the seat surface lift upper limit position P2. . In this example, the upper body support portion 20 is provided at the connection portion 13 of the main body 10. The upper body support portion 20 can support the upper body of the person being assisted, and higher safety can be obtained.

  Hereinafter, some examples of the operation of the bathing assistance device 110 will be described.

2 (a), 2 (b), 3 (a), 3 (b), 4 (a), and 4 (b) are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment. FIG.
FIG. 2A is a top view corresponding to the seating surface transfer position state ST1. FIG. 2B is a top view corresponding to the seat surface elevation upper limit position state ST2. The seat surface portion 15 further has a seat surface elevation lower limit position state ST3. FIG. 3A is a transverse cross-sectional view corresponding to the seating surface elevation upper limit position state ST2. FIG. 3B is a transverse cross-sectional view corresponding to the seating surface elevation lower limit position state ST3. Fig.4 (a) is a longitudinal cross-sectional view in the center of the width direction Dw of a bathing assistance apparatus corresponding to the seat surface raising / lowering upper limit position state ST2. FIG.4 (b) is a longitudinal cross-sectional view in the center of the width direction Dw of the bathing assistance apparatus corresponding to the seat surface raising / lowering lower limit position state ST3.

  These drawings correspond to the case where the width of the bathtub 150 (the length in the width direction Dw) on which the bathing assistance device 110 is placed is the longest (Case 1). In other words, this corresponds to the case where the length along the width direction Dw between the first arm portion 11 and the second arm portion 12 is the longest. An example when the width of the bathtub 150 is short will be described later.

  As shown in FIG. 2A, in the seating surface transfer position state ST1, the seating surface portion 15 is in the seating surface transfer position P1. The seat surface portion 15 at the seat surface transfer position P1 is located at a position overlapping the rim of the bathtub 150 when viewed from above, and is closest to the rim 151a side (washing area side). In the seat surface transfer position P <b> 1, the end portion of the seat surface portion 15 is located outside the bathtub 150. That is, at the seat surface transfer position P1, the end portion of the seat surface portion 15 is located outside the bathtub 150 (outside the first arm portion 11). This makes it easier for the person being assisted to sit on the seat surface portion 15.

  The seat surface portion 15 is attached on the slide base 16. The seat surface portion 15 is movable on the slide base 16 between the seat surface transfer position P1 and the seat surface up / down upper limit position P2 along the width direction Dw.

  As shown in FIG. 2B, the seat surface portion 15 at the seat surface ascending / descending upper limit position P <b> 2 is located on the inner side of the bathtub 150 in the top view and is located above the rim of the bathtub 150 in the side view. The seat surface portion 15 at the seat surface ascending / descending upper limit position P2 does not overlap with the rim of the bathtub 150 in a top view. The movement between the seat surface transfer position P1 and the seat surface up / down upper limit position P2 is a slide movement. In this movement, the seat surface portion 15 does not substantially rotate. The sliding movement that does not substantially rotate simplifies the configuration of the bathing assistance device 110. Safety can also be improved.

  In the state where the person being assisted sits on the sliding surface part 15, the assistant pushes the seat part 15 or a part of the person's body in the width direction Dw, so that the body of the person being assisted (the buttocks) ) Moves from the seat surface transfer position P1 to the seat surface up / down upper limit position P2. From this seating surface raising / lowering upper limit position P2, the seating surface part 15 descends. That is, as shown in FIG. 3A, the seat surface portion 15 can move up and down along the arrow AB.

  In the seat surface elevation upper limit position state ST2 shown in FIGS. 3A and 4A, the seat surface portion 15 is in the seat surface elevation upper limit position P2. From this state, the seat surface portion 15 descends. In the seat surface ascending / descending upper limit position P2, the seat surface portion 15 is positioned above the upper surface of the rim of the bathtub 150 (for example, the first rim 151a).

  In the seat surface elevating lower limit position state ST3 shown in FIGS. 3B and 4B, the seat surface portion 15 is in the seat surface elevating lower limit position P3. The seat surface portion 15 at the seat surface elevation lower limit position P3 is located closer to the bottom of the bathtub 150 than the seat surface elevation upper limit position P2. The base 16A under the seat surface portion 15 is in contact with the bottom surface 152b of the bathtub 150 at the seat surface elevation lower limit position P3. The seat surface portion 15 is stabilized at the seat surface elevation lower limit position P3.

  As the seat surface portion 15 moves up and down, the person being assisted descends from the seat surface ascent / descent upper limit position P2 to the seat surface ascent / descent lower limit position P3. The body of the person being assisted enters the hot water of the bathtub 150 by the seat surface portion 15 being lowered from the seat surface ascent / descent upper limit position P2 to the seat surface ascent / descent lower limit position P3. In this way, by providing the lifting device, it is possible to assist the operation in the vertical direction Dv until the bath 150 enters the hot water, so that a safe person can take a bath.

  The vertical movement of the seat surface portion 15 between the seat surface elevation upper limit position P2 in FIG. 3A and the seat surface elevation lower limit position P3 in FIG. 3B is a cable connecting the main body 10 and the base 16A. Is done. As shown in FIG. 3B, the first cable 16 a is connected to the first arm portion 11. A second cable 16 b is connected to the second arm portion 12. The first cable 16a and the second cable 16b are connected to the base 16A. The base 16A is suspended by these cables. When the length between the first arm portion 11 and the base 16A of these cables and the length between the second arm portion 12 and the base 16A are increased, the cables are attached to the base 16A via the base 16A and the slide base 16. The seat surface portion 15 is lowered. When the lengths of these cables are shortened, the base 16A, the slide base 16, and the seat surface portion 15 rise.

  In this example, a first contact portion 17a (for example, a wheel) is provided at one end of the base 16A. A second contact portion 17b (for example, a wheel) is provided at the other end of the base 16A. The direction from the first contact portion 17a toward the second contact portion 17b is along the width direction Dw. The first contact portion 17a can contact the inner wall surface 151af of the first rim 151a of the bathtub 150. The second contact portion 17b can contact the inner wall surface 151bf of the second rim 151b of the bathtub 150.

  In the vertical movement of the seat surface portion 15 (and the slide base 16 and the base 16A), the first contact portion 17a is in contact with the inner wall surface 151af of the first rim 151a of the bathtub 150, and the second contact portion 17b is the second rim 151b of the bathtub 150. This is performed in contact with the inner wall surface 151bf. The seat portion 15 can move up and down in a stable posture by moving up and down while these contact portions are in contact with the inner wall surface.

  In the arrangement of the bathing assistance device 110 in the bathtub 150, the seat surface transfer position P1 may be in a position overlapping the first rim 151a (first arm portion 11) in the top view, or the seat surface transfer position P1. However, it may be in a position overlapping the second rim 151b (second arm portion 12) in a top view. In the above example, the seating surface transfer position P1 is at a position overlapping the first rim 151a when viewed from above. In this case, at least the first contact portion 17a is in contact with the inner wall surface 151af, and the seat surface portion 15 (and the slide base 16) is in the lifting section between the seat surface lifting upper limit position P2 and the seat surface lifting lower limit position P3. Moves up and down. When the seat surface transfer position P1 is in a position overlapping the second rim 151b in a top view, at least the second contact portion 17b is in contact with the inner wall surface 151bf, and the seat surface elevating upper limit position P2 and the seat surface elevating lower limit position P3. The seat surface portion 15 (and the slide base 16) moves up and down in the ascending / descending section.

  Thus, in the embodiment, the seat surface portion 15 moves up and down while the two contact portions (the first contact portion 17a and the second contact portion 17b) of the base 16A are along the inner wall surface of the bathtub 150. Thereby, stable vertical movement is obtained.

  In general, in the bathtub 150, the distance between two opposing inner wall surfaces decreases from the top to the bottom. The inner wall surface has such an inclination.

  Thus, when the seat surface portion 15 (and the slide base 16) descends with one of the two contact portions along the inner wall surface of the bathtub 150, the position of the seat surface portion 15 changes from the outside of the bathtub 150 to the center of the bathtub 150. Move in the direction toward. This movement towards the center is based on the above inclination of the inner wall surface.

  Thus, in this example, the width W1 of the bathtub 150 in the width direction Dw (see FIG. 3A) is the maximum width to which the bathing assistance device 110 can be applied. At this time, when the main body 10 is placed on the bathtub 150 (rim) and the seat surface portion 15 is lowered, the seat surface portion 15 moves toward the center in the width direction Dw of the bathtub 150.

  Thereby, regardless of the width of the main body 10, even if the sliding distance of the seat surface portion 15 is constant, the seat surface lifting lower limit position P <b> 3 is located on the center side in the width direction Dw of the bathtub 150. Therefore, even when the width that can be adjusted by the width adjusting means is in the maximum width state, it is possible to bathe in a comfortable posture during bathing.

  For example, when the main body 10 is placed on the bathtub 150 and the seat surface portion 15 is lowered, the seat surface portion 15 moves in the direction from the first arm portion 11 toward the second arm portion 12. This movement is based on, for example, the expansion and contraction of the base 16A in a state where the contact portion is in contact with the inner wall surface of the bathtub 150. Stable descent and rise can be realized.

  After the person being assisted takes a bath, the seat surface portion 15 rises to the seat surface ascent / descent upper limit position P2, slides from the seat surface ascent / descent upper limit position P2 to the seat surface transfer position P1, and returns to the original position. The person being assisted rises from the seating surface portion 15 and the series of operations ends.

  As described with reference to FIGS. 3A and 3B above, the lifting device (such as the motor 13M and the cable illustrated in FIG. 9A) is configured so that the seat surface portion 15 is positioned as the seat surface lifting upper limit position P2. In the raising / lowering section between the seat bottom raising / lowering lower limit position P3 on the bathtub bottom side, it is raised and lowered in the first direction (vertical direction Dv). The seating surface raising / lowering upper limit position P2 is not located on the rim of the bathtub 150 in a top view, and is located above the rim in a side view. The seating surface elevation lower limit position P3 is the position of the seating surface portion 15 when the base 16A is in contact with the bottom surface 152b of the bathtub 150.

FIG. 5A, FIG. 5B, FIG. 6A, and FIG. 6B are schematic views illustrating the operation of the bathing assistance apparatus according to the embodiment.
These drawings correspond to the case where the width of the bathtub 150 (the length in the width direction Dw) on which the bathing assistance device 110 is placed is the shortest (Case 2). That is, the width W2 of the bathtub 150 in Case 2 (see FIG. 6A) is shorter than the width W1 of the bathtub 150 in Case 1 (see FIG. 3A). 5 (a), FIG. 5 (b), FIG. 6 (a) and FIG. 6 (b), the length along the width direction Dw between the first arm portion 11 and the second arm portion 12 is Corresponds to the shortest case.

  FIG. 5A is a top view corresponding to the seating surface transfer position state ST1. FIG. 5B is a top view corresponding to the seating surface elevation upper limit position state ST2. FIG. 6A is a transverse cross-sectional view corresponding to the seating surface elevation upper limit position state ST2. FIG. 6B is a transverse cross-sectional view corresponding to the seating surface elevation lower limit position state ST3. A vertical cross-sectional view corresponding to the seating surface elevation upper limit position state ST2 in Case 2 is the same as FIG. A longitudinal sectional view corresponding to the seat surface elevation lower limit position state ST3 in Case 2 is the same as FIG.

  Also in Case 2, as shown in FIG. 5A, the seat surface portion 15 is at the seat surface transfer position P1 in the seat surface transfer position state ST1. In the seat surface transfer position P <b> 1, the end portion of the seat surface portion 15 is located outside the bathtub 150.

  As shown in FIG.5 (b), the seat surface part 15 slides between the seat surface transfer position P1 and the seat surface raising / lowering upper limit position P2. Also in this case, the seat surface portion 15 does not substantially rotate. As shown in FIGS. 2A, 2B, 5A, and 5B, the sliding distance d1 of the seat surface portion 15 in the case of Case 1 is equal to that of the seat surface portion 15 in the case of Case 2. It is the same as the slide movement distance d2.

  That is, in both Case1 and Case2, the seating surface transfer position P1 is on the first rim 151a. In other words, in both Case 1 and Case 2, the seat surface portion 15 at the seat surface transfer position P1 is located at a position overlapping the rim of the bathtub 150 in the top view, and is closest to the rim 151a side (washing area side). . And in both Case1 and Case2, the seat surface part 15 moves only the same distance (slide distance) from the seat surface transfer position P1.

  Thereby, the safety | security at the time of the movement from the seat surface transfer position P1 to the seat surface raising / lowering upper limit position P2 is securable.

  Thus, in the bathing assistance apparatus 110 according to the embodiment, the main body 10 includes width adjusting means that can adjust the width of the main body 10 along the second direction. 150 can be installed. Further, since the slide moving means is configured so that the slide moving distance of the seat surface portion 15 does not change even if the width of the main body 10 is adjusted by the width adjusting means, it can be installed in the bathtub 150 of various sizes. Even in this case, safety during movement from the seating surface transfer position P1 to the seating surface elevation upper limit position P2 can be ensured. Therefore, even if it is a case where it can be installed in bathtub 150 of various sizes from which the width of a bathtub differs, improving mobility from seat surface transfer position P1 to seat surface raising / lowering upper limit position P2, it is seat surface transfer. Safety during movement from the position P1 to the seating surface lifting upper limit position P2 can be ensured.

  For example, even if the width of the main body 10 is adjusted by the width adjusting means, the relationship between the position of the seat surface portion 15 at the seat surface transfer position P1 and the position of one of the arm portions (for example, the first arm portion 11) (for example, both The distance between them does not change. Even if the width of the main body 10 is adjusted by the width adjusting means, the relationship between the position of the seat surface portion 15 and the position of one of the arm portions (for example, the first arm portion 11) at the seat surface ascending / descending upper limit position P2 (for example, between the two) The distance) does not change.

  Thereby, even if the width of the main body 10 is adjusted by the width adjusting means, the relative positional relationship between the position of the seat surface portion 15 and the position of the first arm portion 11 at the seat surface transfer position P1 is not changed. Therefore, even if the width of the main body 10 is greatly adjusted by the width adjusting means in accordance with the size of the bathtub 150, the seating surface transfer position P1 on which the person being assisted sits does not become far. Therefore, it can install in the bathtub 150 of various sizes, without reducing transferability.

  As shown in FIGS. 6A and 6B, in the case 2 as well, the body of the person being assisted is moved from the seat up / down upper limit position P2 to the seat up / down upper limit position P3 by the vertical movement of the seat surface portion 15. Descend to The body of the person being assisted enters the hot water of the bathtub 150 by the seat surface portion 15 being lowered from the seat surface ascent / descent upper limit position to the seat surface ascent / descent lower limit position. In this way, by providing the lifting device, it is possible to assist the operation in the vertical direction Dv until the bath 150 enters the hot water, so that a safe person can take a bath.

  As shown in FIG. 6A and FIG. 6B, even in the case of Case 2, one of the two contact portions (the first contact portion 17a and the second contact portion 17b) of the slide base 16 is The seat portion 15 (and the slide base 16) moves up and down in a state along the inner wall surface. When the contact portions 17a and 17b are in contact with the inclined inner wall surfaces 151af and 151bf of the bathtub 150, the contact portions 17a and 17b are pressed against the inner wall surface, and the position of the contact portion is stabilized, so that the position of the base 16A is stabilized. Thereby, stable vertical movement is obtained.

  For example, the width W2 of the bathtub 150 in the width direction Dw (see FIG. 6A) is the minimum to which the bathing assistance device 110 can be applied. Also at this time, when the main body 10 is placed on the bathtub 150 (rim) and the seat surface portion 15 is lowered, the seat surface portion 15 moves toward the center in the width direction Dw of the bathtub 150.

  For example, when the main body 10 is placed on the bathtub 150 and the seat surface portion 15 is lowered, the two contact portions (the first contact portion 17a and the second contact portion 17b) are along the inner wall surface of the bathtub 150. The seat surface portion 15 moves up and down. At this time, the seat surface portion 15 moves in a direction from the first arm portion 11 toward the second arm portion 12. As the contact portion moves up and down along the inner wall surface, stable lowering and raising can be realized.

  Even when the width in the width direction Dw of the bathtub 150 is between the maximum width and the minimum width, when the seat surface portion 15 is lowered, the seat surface portion 15 is directed toward the center in the width direction Dw of the bathtub 150. You may move.

  Thereby, for example, even if the slide movement distance of the seating surface portion 15 is made as short as possible in order to improve the safety at the time of sliding movement, the seating surface elevation lower limit position P3 is the center in the width direction (width direction Dw) of the bathtub 150. Because it is located on the side, you can bathe in a comfortable posture when bathing.

  In the embodiment, a side clue portion 30 is further provided. The side clue part 30 is provided on the second arm part 12. As shown in FIGS. 2 (a) and 5 (a), the side cues 30 are provided on the opposite side of the washing area (the side of the seating surface transfer position P1). That is, in the width direction Dw, the position of the seat surface portion 15 of the seat surface lifting upper limit position P2 is between the position of the seat surface portion 15 at the seat surface transfer position P1 and the position of the side clue portion 30. The side clue part 30 is formed so as to incline toward the one end (that is, the first arm part 11) side in the upper direction and the width direction Dw.

  As shown in FIGS. 1A, 1 </ b> B, 3 </ b> A, and 6 </ b> A, the side clue part 30 protrudes toward the inside of the bathtub 150. By providing such a side clue part 30, the person being assisted can perform the straddling operation and the slide movement more safely as described below.

Hereinafter, the usage example of the bathing assistance apparatus 110 which concerns on embodiment is demonstrated. When using the bathing assistance device 110, there are roughly four operations: a transfer (seating) operation, a straddling operation, a lateral (sliding) moving operation, and an elevating operation.
The following FIG. 7A to FIG. 7G illustrate transfer (sitting) operation, straddling operation, and lateral (slide) moving operation.

Fig.7 (a)-FIG.7 (g) are schematic diagrams which show the usage example of the bathing assistance apparatus which concerns on embodiment.
As shown in FIG. 7A, the seat surface portion 15 is in the seat surface transfer position P1 before the user 81 (a person being assisted) is seated.

  As shown in FIG. 7B, the user 81 sits backward on the upper surface of the seat surface portion 15. At this time, the user 81 supports the body by attaching a hand (in this case, the right hand) to the rear clue unit 40. In this way, safe seating is performed.

  As shown in FIG.7 (c), after sitting, the user 81 remove | releases a hand from the back clue part 40, for example.

  As shown in FIG. 7 (d), the user 81 passes one leg 81a over the rim of the bathtub 150 (in this example, the first rim 151a) and straddles it. At this time, the user 81 supports the body by attaching one hand to the rear clue 40 at the beginning of straddling. Since the direction of the body changes as the straddling operation proceeds, the hand is released from the rear clue 40 in the middle of straddling one foot 81a. Thereafter, when the direction of the body changes to reach a distance that can reach the side clue unit 30, the other hand holds the side clue unit 30 and supports the body. Thereby, a safe straddling operation is performed.

  As shown in FIG. 7E, the user 81 passes another leg 81b over the rim of the bathtub 150 (in this example, the first rim 151a) and straddles it. Thereby, both feet of the user 81 enter the inside of the bathtub 150. Also in the straddling operation of one leg 81b, the user 81 holds the body by grasping the side clue part 30 with one hand. In this way, a safe straddling operation is performed.

  As shown in FIG. 7F, after the straddling operation is finished, for example, the user 81 moves his hand away from the side clue unit 30. The user 81 may keep holding the side clue 30 to support the body.

  As shown in FIG. 7G, the seat surface portion 15 slides along the direction along the arrow AA (width direction Dw). For example, when the assistant pushes the seat surface portion 15 or a part of the person being assisted, the seat surface portion 15 slides. By the sliding movement, the seat surface portion 15 moves to the seat surface ascent / descent upper limit position P <b> 2, and the user's 81 body (buttock) moves toward the inside of the bathtub 150. During this sliding movement, the user 81 can continue to support the body by grasping the side clue 30. Therefore, the user 81 can be prevented from falling even when sliding from the seat surface transfer position to the seat surface up / down upper limit position.

  Thus, in the embodiment, the user 81 sits on the seat surface portion 15 at the seat surface transfer position P1, and thereafter, the user 81 straddles one leg at a time. Thereafter, the seat surface portion 15 slides to the seat surface ascending / descending upper limit position P2, and the body of the user 81 safely moves to the inside (center portion) of the bathtub 150. A series of operations at the time of transfer from the seat surface transfer position P1 to the seat surface up / down upper limit position P2 can be safely performed.

  At this time, since the body of the user 81 is stably supported by using the rear clue part 40 and the side clue part 30 described above, a safer straddling operation can be obtained. Even if the width of the bathtub 150 (the length in the width direction Dw) is wide, the side clue part 30 is provided, so that the user 81 uses the side clue part 30 when sliding. Thus, the slide movement can be performed safely.

  According to the embodiment, the safety of the user 81 is increased. The caregiver's operation is also facilitated. For example, in the straddling operation, when the assistant needs to support the weight of the person being assisted (user 81), the burden on the assistant is large and low back pain or the like is likely to occur. In the embodiment, since the slide moving means is provided, the caregiver simply presses the seat surface portion 15 or a part of the person being assisted, and the caregiver is moved from the seat surface transfer position P1 to the seat surface elevating upper limit. It can be slid to position P2. For this reason, the burden that a caregiver supports a person being assisted can be reduced.

  In the operations shown in FIGS. 7D to 7G, the upper body support portion 20 can support the upper body (for example, the back) of the user 81. Thereby, a series of operations at the time of transfer from the seat surface transfer position P1 to the seat surface up / down upper limit position P2 can be performed more safely.

  Thereafter, as will be described below, the seat surface portion 15 is lowered and the user 81 enters the hot water of the bathtub 150.

Fig.8 (a) and FIG.8 (b) are schematic diagrams which show the usage example of the bathing assistance apparatus which concerns on embodiment.
As shown in FIG. 8A, after the user 81 moves onto the bathtub 150 along with the sliding movement of the seat surface portion 15 to the seat surface lifting upper limit position P2, the user 81 moves to the seat surface lifting upper limit position P2. Sitting on the seating surface portion 15. From this state, the seat surface portion 15 is lowered.

  As shown in FIG. 8B, the seat surface portion 15 is lowered to the seat surface elevation lower limit position P <b> 3, and the user 81 enters the hot water of the bathtub 150. The user 81 takes a bath.

  After the user 81 has finished bathing, the seat surface portion 15 rises to the seat surface ascent / descent upper limit position P2, slides from the seat surface ascent / descent upper limit position P2 to the seat surface transfer position P1, and returns to the original position. . The user 81 stands up from the seating surface portion 15 and ends a series of operations.

Hereinafter, examples of the main body 10 and the width adjusting means will be described.
FIG. 9A and FIG. 9B are schematic views illustrating the main body of the bathing assistance apparatus according to the embodiment. In FIG. 9A and FIG. 9B, the cover of the main body is omitted. FIG. 9A is a perspective view. FIG. 9B is a top view.

  As shown in these drawings, the connection portion 13 of the main body 10 includes a first frame 13a, a second frame 13b, and a third frame 13c. These frames extend along the width direction Dw. For example, there is a third frame 13c between at least a part of the first frame 13a and at least a part of the second frame 13b. The first arm portion 11 is connected to the first frame 13a. The second arm portion 12 is connected to the second frame 13b.

  For example, the first frame 13a and the second frame 13b can slide and move relative to the third frame 13c. The distance between the first arm portion 11 and the second arm portion 12 can be changed by the relative movement of the frame. Thereby, the width | variety of the main body 10 is adjustable. For example, before the main body 10 is placed on the rim of the bathtub 150, a certain amount of width adjustment is performed. Thereafter, the main body 10 is placed on the rim of the bathtub 150, and then fixed at a predetermined position by a stopper (not shown) provided on each of the arm portions while performing fine adjustment.

  As shown in FIG. 9A, the connection portion 13 is provided with a winder 13P (may be a pulley). The winder 13P is rotated by a motor 13M. Thereby, the winder 13P can wind up the cables (the first cable 16a and the second cable 16b). A part of the cable is wound around the winder 13P, and another part of the cable is not wound around the winder 13P, but is connected to the attachment portions 11A and 12B for attaching the base 16A. By the rotation of the winder 13P by the motor 13M, the lengths of the portions where these cables are not wound can be changed. As already described, the seat surface portion 15 can be moved in the vertical direction Dv by changing the length of the cable (the length of the unrolled portion).

  The winder 13P and the motor 13M are omitted in FIG.

Hereinafter, examples of the seat surface portion 15 and the slide base 16 will be described.
Drawing 10 (a)-Drawing 10 (d) are mimetic diagrams which illustrate the seat part and slide base of the bathing assistance device concerning an embodiment.
FIG. 10A is a perspective view seen from the upper surface side (upper side). FIG. 10B is a top view (plan view). 10 (c) and 10 (d) are side views.

  The bathing assistance device 110 includes a seat surface portion 15 and a slide base 16.

  A slide pedestal 16 is attached on a base 16A (see FIG. 1C, etc.), and a seat surface portion 15 is attached to an upper portion of the slide pedestal 16. The seat surface portion 15 is indirectly attached to the main body 10 by connecting the base 16 </ b> A to the main body 10. The seat surface portion 15 is attached to the upper portion of the slide base 16, and the seat surface transfer position P1 (see FIG. 1 (c)) and the seat surface up / down upper limit position P2 (FIG. 1 (d)) along the width direction Dw. ))).

  The seat portion 15 is attached to the slide base 16 so as not to move further in the right direction on the paper surface from the state shown in FIG. Further, the seat surface portion 15 is attached to the slide base 16 so as not to move further from the state shown in FIG. Thereby, even if the width | variety of the main body 10 is adjusted, a slide distance becomes fixed.

  By removing the base 16A from the main body 10 with the seat surface portion 15, the slide base 16 and the base 16A attached to each other, the seat surface portion 15 and the slide base 16 are also removed from the main body 10 together with the base 16A.

Fig.11 (a)-FIG.11 (d) are schematic diagrams which illustrate the side cue part of the bathing assistance apparatus which concerns on embodiment.
FIG. 11A to FIG. 11C are perspective views seen from different directions. FIG. 11D is a front view.
The side clue part 30 includes a bottom part 31, a side part 32, and an upper part 33. The bottom surface portion 31 is in contact with the bottom surface of the second arm portion 12. The side surface portion 32 abuts on the side surface of the second arm portion 12 on the other end side (the side opposite to the first arm portion 11). The upper part 33 is located above the second arm part 12. The upper portion 33 is formed so as to be inclined upward and toward one end side (first arm portion 11 side) in the second direction (width direction Dw). The side clue part 30 is fixed to the second arm part 12 at the bottom part 31.

  The upper part 33 of the side clue part 30 is formed so as to incline upward toward the one end side in the second direction (width direction Dw), and the side clue part 30 corresponds to the side clue part 30. The bottom surface portion 31 is fixed to the second arm portion 12. For this reason, the strength of the side clue part 30 can be ensured by receiving the load received by the side clue part 30 on the bottom surface of the second arm part 12. Further, since the side clue part 30 passes through the outside of the second arm part 12 (the other end side of the main body 10) and is fixed to the second arm part 12, other members (for example, a flap, a lifting device, etc.) Can be prevented.

  The above description regarding the main body 10, the width adjusting means, the slide base 16, the seat surface portion 15, and the side clue portion 30 is an example.

  The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to them, and various modifications can be made based on the technical idea of the present invention.

  DESCRIPTION OF SYMBOLS 10 ... Main body 11, 12 ... 1st, 2nd arm part, 13 ... Connection part, 13M ... Motor, 13P ... Winder, 13a-13c ... 1st-3rd frame, 15 ... Seat surface part, 16 ... Slide base, 16A ... Base, 16a, 16b ... First and second cables, 17a, 17b ... First and second contact parts, 20 ... Upper body support part, 30 ... Side clue part, 31 ... Bottom part, 32 ... Side part 33 ... Upper part, 40, 40A ... Back clue part, 81 ... User, 81a, 81b ... Leg, 110 ... Bathing assistance device, 150 ... Bathtub, 151a-151d ... First to fourth rims, 151af ... Inner wall surface 151bf ... inner wall surface, 152b ... bottom surface, AA, AB, AC ... arrow, Dv ... vertical direction, Dw ... width direction, P1 ... seat surface transfer position, P2 ... seat surface elevating upper limit position, P3 ... seat Lifting the lower limit position, ST1 ... seat surface ERROR position state, ST2 ... seat surface elevation upper limit position state, ST3 ... seat surface elevation limit position state, W1, W2 ... width, d1, d2 ... sliding distance

Claims (6)

A main body placed at a predetermined position on the rim of the bathtub;
A seat surface provided in the main body;
The seat surface portion is not positioned on the rim in a top view, and is lifted between a seat surface lift upper limit position that is positioned above the rim in a side view and a seat surface lift lower limit position on the bathtub bottom side. An elevating device for elevating in the first direction within the section;
In the bathing assistance device with
The seat surface portion, when viewed from above, at least a part of the seat surface portion is located on the rim, and when viewed from above, the seat surface portion is closest to the rim side, and the seat surface is moved up and down. A slide moving means for sliding in a second direction intersecting the first direction between the upper limit position and
The main body has width adjusting means capable of adjusting the width of the main body along the second direction,
The bathing assistance device according to claim 1, wherein the slide moving means is configured such that the slide moving distance of the seat surface portion does not change even if the width is adjusted by the width adjusting means. The body is
A first arm portion provided to project forward from one end side in the second direction;
A second arm portion provided to project forward from the other end side in the second direction;
With
Changing the distance along the second direction between the first arm portion and the second arm portion;
Even if the width is adjusted by the width adjusting means, the relative positional relationship between the position of the seat surface portion and the position of the first arm portion at the seat surface transfer position is not changed. The bathing assistance apparatus according to claim 1.   The elevating device lowers the seat surface portion from the seat elevating / lowering upper limit position in a state where the width adjustable by the width adjusting means is a maximum width and the main body is placed on the bathtub. The bathing assistance device according to claim 2, wherein the seating surface portion is configured to move toward a center in the second direction of the bathtub.   The elevating device lowers the seat surface portion from the seat surface elevating upper limit position in a state where the width adjustable by the width adjusting means is a minimum width and the main body is placed on the bathtub. The bathing assistance device according to claim 3, wherein the seating surface portion is configured to move toward the center of the bathtub in the second direction when the bath is placed. A side cue portion provided on the second arm portion;
In the second direction, between the position of the seat surface portion at the seat surface transfer position and the position of the side clue portion, there is a position of the seat surface portion at the seat surface lifting upper and lower position,
The bathing assistance device according to any one of claims 2 to 4, wherein the side clue portion is formed to be inclined upward and toward the one end side in the second direction. The side cue portion is positioned above the second arm portion, a bottom surface portion that contacts the bottom surface of the second arm portion, a side surface portion that contacts the side surface on the other end side of the second arm portion, and the second arm portion. An upper part,
The upper part is formed so as to be inclined upward and toward the one end side in the second direction,
The bathing assistance apparatus according to claim 5, wherein the side clue is fixed to the second arm at the bottom.

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