JP2017038932A - Bath care device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bath care device which allows a cared person to enjoy in a bath to a sufficient depth.SOLUTION: A bath care device of the invention is a bath care device for assisting bath at a bathtub of a user and comprises: a device body which is attached to the bathtub; a lifting mechanism which is provided on the device body; and a chair which is vertically moved to the device body by the lifting mechanism, and which can be arranged in the bathtub. The chair comprises: a backrest part; and a seat part which is connected to a lower end of the backrest part. A part including at least the seat part in the chair can be tilted to the device body when receiving force from a lower direction or a rear direction of the seat part.SELECTED DRAWING: Figure 21

Description

  The present invention relates to a bathing care apparatus capable of bathing an elderly person or a disabled person who is difficult to walk, for example, while sitting on a chair.

  Conventionally, various bathing care devices for assisting caregivers in bathing have been proposed. Hereinafter, as an example, a bathing care apparatus disclosed in Patent Document 1 will be described with reference to FIGS. 27 and 28. FIG. 27 is a perspective view of a conventional bathing care apparatus, and FIG. 28 is a diagram schematically illustrating a use state of the apparatus of FIG. 28A is a state before the first rail portion and the second rail portion are connected and the lift chair unit is moved to the second rail portion side, and FIG. FIG. 28 (c) shows a state in which the chair is lowered into the bathtub.

  As shown in FIGS. 27 and 28, this bathing care apparatus includes a lift chair unit 200 for moving a care receiver in a seated state, and a rail for moving the lift chair unit 200 in and out of a bathtub 800. Part 100 and a carriage 300 that supports a part of the rail part 100. The lift chair unit 200 includes a chair 600 on which a care recipient sits, and a lift device 700 that lifts and lowers the chair 600 while supporting the chair 600 so as to be movable with respect to the rail portion 100. The rail part 100 has a first rail part 400 attached to the support part 310 of the carriage 300 and a second rail part 500 attached to the bathtub 800. The first rail portion 400 is configured to be detachably connected to the second rail portion 500. When the rail portions 400 and 500 are connected, the first rail portion 400 is connected so as to extend in a straight line. The elevating device 700 can move on the rail portions 400 and 500.

  This bathing care apparatus is used as follows. First, as shown to (a) of FIG. 28, the trolley | bogie 300 is arrange | positioned in the vicinity of the bathtub 800, and the 1st rail part 400 of the trolley | bogie 300 is connected with the 2nd rail part 500 of the bathtub 800. FIG. At this time, the lifting device 700 is disposed on the first rail part 400. That is, after the lifting / lowering chair unit 200 is disposed on the cart 300 side, the lifting / lowering device 700 adjusts the height of the chair 600 to a height at which a care recipient can easily sit. When the cared person sits on the chair 600, the height of the chair 600 is adjusted by the lifting device 700 to a height that allows the chair 600 to move to the bathtub 800 side. Subsequently, as shown in FIG. 28 (b), the lifting device 700 is slid toward the second rail portion 500. Accordingly, the chair 600 is arranged so as to get over the edge of the bathtub 800 and face the bathtub 800. Next, as shown in FIG. 28C, the chair 600 is lowered by the lifting device 700. Thereby, the cared person sitting on the chair 600 can be bathed in the hot water in the bathtub 800.

Japanese Patent Laying-Open No. 2015-58054

  However, when the bathing care apparatus is used, when the chair 600 reaches the bottom of the bathtub 700, the position of the buttocks of the cared person seated on the chair 600 is the thickness of the seat of the lift chair unit 200 from the bottom of the bathtub. It gets higher by the minute. Therefore, there is a problem that the cared person sitting on the chair 600 cannot soak up to the position of the nipple, for example, and cannot sufficiently soak in the hot water of the bathtub 800.

  Then, in view of the said situation, this invention aims at providing the bathing care apparatus which users, such as a cared person, can bathe to sufficient depth.

  The bathing care apparatus according to the present invention is a bathing care apparatus for assisting a user in bathing in a bath, wherein the apparatus main body is attached to the bathtub, an elevating mechanism provided in the apparatus main body, and the elevating and lowering apparatus. A chair that moves up and down with respect to the apparatus main body by a mechanism and that can be placed in a bathtub, and the chair includes a backrest part and a seat part connected to a lower end part of the backrest part. In the chair, at least a portion including the seat is configured to be tiltable with respect to the apparatus main body when receiving a force from below or behind the seat.

  In the bathing care apparatus, the backrest portion includes an upper backrest portion and a lower backrest portion rotatably connected to a lower portion of the upper backrest portion, and the lower backrest portion includes The upper backrest part can be configured to be inclined with respect to the apparatus main body together with the seat part.

  Each said bathing care apparatus WHEREIN: When the said chair is lowered | hung by the said raising / lowering mechanism from the state which the said chair is contacting with the bottom face of the said bathtub, the part which contains at least the said seat part by the force received from the bottom face of the said bathtub However, it can be configured to slide along the bottom surface of the bathtub and to incline away from the apparatus main body.

  The said bathing care apparatus WHEREIN: The said chair can further have a roller which can contact the bottom face of the said bathtub on the lower surface side of the said seat part.

  In the bathing care apparatus, the lower backrest and the seat may be turnable so as to overlap the upper backrest.

  Each said bathing care apparatus can further be provided with the foot mounting part for the said user to mount a leg | foot, and the support arm which supports the said foot mounting part with respect to the said chair.

  In each of the above bathing care devices, the support arm includes a bathing posture position in which the footrest portion is brought close to the seat portion, and a chair sitting posture in which the footrest portion is further away from the seat portion than the bathing posture position. It can be configured to be selectively arranged at the position.

  Each of the above bathing care devices can further include a drive mechanism that drives the support arm so that the footrest moves between a bathing posture position and a chair sitting posture position.

  In each of the above bathing care devices, the driving means may include a linear member connected to the support arm, and pulling the linear member to move the footrest from the chair sitting posture position. It can be configured to be displaced to the bathing posture position.

  In each of the above bathing care devices, at least a portion including the seat portion can be tilted with respect to the device main body by further pulling the linear member from the state where the foot placement portion is in the bathing posture position. Can be configured.

  In each of the above bathing care devices, the chair may further include armrests disposed on both sides of the seat portion in the width direction, and the linear member may be disposed along the armrests.

  Each of the bathing care devices further includes a rail unit that supports the device main body, the rail unit supporting the device main body together with the chair, and a fixed rail portion supported by a tub of the bathtub. It has a slide support part which can choose the bathing position where the chair faces the inside of the bathtub, and the transfer position outside the bathtub by sliding along the rail part, and the slide support part is the fixed rail part A slide support body that is slidable on the floor, a support leg that supports the slide support body on the washing floor adjacent to the bathtub, and a lower end of the support leg. A wheel that rolls on the floor surface of the washing place along with the slide can be provided.

  In order to achieve the above object, a bathing care apparatus according to the present invention (hereinafter referred to as “the bathing care apparatus of the present invention”) lowers a chair into a bathtub by a chair lifting device, and allows a person to sit on the chair. A bathing care apparatus adapted to bathe in a bathed state, wherein the chair has a backrest portion pivoted to the upper backrest portion via an upper backrest portion and a pivot shaft, and the pivot shaft A lower backrest portion that pivots in the front-rear direction of the seat portion, and the upper backrest portion is supported by the chair elevating device so as to elevate along the elevating axis of the chair elevating device. It is characterized by.

  The bathing care apparatus of the present invention preferably includes a lower backrest rotating means for rotating the lower backrest about the pivot shaft by power. That is, it is not necessary for the caregiver to lift the seat by hand or to press the lower backrest in the direction of rotation, so that the caregiver can be reduced and one person can work alone. . Although it does not specifically limit as said motive power, An electric motor, a hydraulic device, etc. are mentioned.

The chair preferably has a structure in which the seat is integrated with the lower backrest, and the seat also rotates around the pivot shaft as the lower backrest rotates.
In other words, the lower backrest pivots around the pivot axis toward the front of the seat, and at the same time the seat also pivots at the same angle with respect to the lower backrest, and the front end of the seat pivots Is lifted upward. Therefore, the person sitting on the seat can smoothly lift the toe side upward while maintaining a stable posture at the waist.

  Further, the bathing care apparatus of the present invention is a bathing care apparatus in which a chair is lowered into a bathtub by a chair elevating device so that a person can take a bath while sitting on the chair, and the chair has a backrest. A chair body having a head and a seat, and a foot support, the foot support being a foot placement part on which a person sitting on the chair body places a foot, and a foot placement part support for supporting the foot placement part An arm, and the footrest support arm includes a bathing posture position in which the footrest portion is close to the front end of the seat portion of the chair body, and a person who is seated is held in a folded posture. The seat portion is formed so as to be able to select a chair posture position which is located below the bathing posture position with respect to the seat portion.

  In the present invention, the chair sitting posture position refers to the chair body in a state where the entire backrest portion is disposed substantially parallel to the lifting direction of the chair lifting device and the seating surface of the seat portion is substantially horizontal. This means a posture in which the legs are received by the foot resting section after the person has been transferred and the legs are suspended from the seat portion in a substantially vertical state. The position in which the thigh is folded means a position in which the thigh and the chest are close to each other as compared to the chair sitting position, and it is as close as possible to the position of the thigh and the chest in the chair sitting position in order to reduce the burden. preferable. In addition, as a method of making the above thigh folded, a method of bending only the spine so that the chest approaches the thigh, a method of lifting the femur in the chest direction around its joint, or bending the spine, Any method of lifting the femur around the joint in the direction of the chest may be used.

  As described above, the mechanism for selectively setting the foot placement portion to the bathing posture position or the chair sitting posture position is not particularly limited, but for example, the foot placement portion of the foot placement portion support arm is opposite to the foot placement portion. A mechanism that pivots the end portion to the rear end side of the seat portion or the lower end side of the backrest portion and rotates the foot placement portion support arm, on the side opposite to the placement portion of the foot placement portion support arm The end portion is provided along the backrest portion, and the portion along the backrest portion is supported by the backrest portion so as to be slidable in the vertical direction, and the foot placement portion is separated from and attached to the seat portion by the slide. A mechanism or a combination of these two mechanisms can be used.

  The bathing care apparatus of the present invention includes a footrest support arm drive mechanism that drives the footrest support arm so that the footrest moves between the bathing posture position and the chair sitting posture position. preferable. In other words, when the seated person's foot is folded over the knee and the heel of the bathtub is moved over, the caregiver does not have to support the leg or move the foot support, simplifying care work. can do.

  Further, the foot placement portion support arm drive mechanism is not particularly limited, but, for example, a rope body or a belt-like body having one end connected to the foot support, and a mechanism for winding or pulling up the rope body or the belt-like body The thing which has is mentioned. In addition, the foot placement part may be provided so as not to change the angle with the support part, or may be provided so that the angle can be changed.

  In the bathing care apparatus of the present invention, the chair preferably has armrests on both sides in the width direction of the seat.

  Although the said armrest is not specifically limited, It is preferable that the armrest use position and the retraction position which does not become an obstacle when a person transfers to a seat from the width direction of a seat are provided so that selection is possible. In other words, if the armrest is in the retracted position, when the chair is outside the bathtub, the person carried by the wheelchair easily moves from the side to the seat by placing the wheelchair or the like on the seat. be able to. Therefore, the transfer can be performed safely and the care work by the caregiver can be facilitated.

  And in the bathing care apparatus provided with the foot rest part support arm drive mechanism using the above-mentioned striatum or band-like body, for example, this armrest from the side of the person sitting on the seat It has an armrest main body to be supported, and this armrest main body has a configuration in which a striated body or a belt-like body of the footrest support arm driving mechanism is slidably inserted from one end side to the other end side. It is preferable. That is, since the cord or band is inserted into the armrest body, the human body seated on the chair operates the cord or band smoothly and safely without contacting the cord or band. be able to.

  In addition, although it does not specifically limit as said rope body, For example, a wire rope, a resin rope, a chain etc. are mentioned. Although it does not specifically limit as a strip | belt-shaped object, For example, resin or a fiber reinforced resin tape, a rubber belt, a leather belt, a metal belt etc. are mentioned.

  In the bathing care apparatus of the present invention, the footrest support arm drive means may also serve as a lower backrest rotation means. That is, since only one power unit is required, the size of the device can be reduced and the cost can be reduced.

  In the bathing care apparatus of the present invention, it is preferable that the lower backrest part is pivotally supported together with the seat part so that the lower backrest part is almost superimposed on the upper backrest part. In other words, if the lower backrest is raised together with the seat until it almost overlaps the upper backrest, the length of the protrusion of the seat to the bathtub side can be shortened, so bathing care is required. The seat does not get in the way when the person who does not take a bath.

    The bathing care apparatus of the present invention includes a chair lifting device that supports a chair so that the chair can be lifted and a chair lifting device support, and the chair lifting device support includes a fixed rail portion that is supported by a bathtub tub, The chair lifting device is supported together with the chair, slides along the fixed rail portion, and has a slide support portion capable of selecting a bathing position where the chair faces the inside of the bathtub and a transfer position outside the bathtub, and the slide The support part is a slide support part body that is slidable on the fixed rail part, and supports the slide support part body. A wheel provided at a lower end of the slide support part body slides adjacent to the bathtub. It is good also as a structure provided with the support leg part which rolls on a floor surface. That is, since the load of the chair and the chair lifting / lowering device can be received by the bathtub tub and the floor of the washing place, when the bathing care device is installed, the bathroom is not remodeled and the construction cost can be reduced.

  In the bathing care apparatus of the present invention, it is preferable that the lower backrest part is pivotally supported together with the seat part so that it can be flipped up until it is almost overlapped with the upper backrest part.

  As described above, the bathing care apparatus of the present invention is a bathing care apparatus in which a chair is lowered into a bathtub by a chair elevating device and a person is seated on the chair to take a bath. The backrest portion has an upper backrest portion and a lower backrest portion that is pivotally supported by the upper backrest portion via a pivot shaft and rotates in the front-rear direction of the seat portion around the pivot shaft. And since the upper backrest is supported by the chair lifting device so as to move up and down along the lifting shaft of the chair lifting device, it was used when bathing in a small bathtub with a short length in the existing longitudinal direction. Even so, the person sitting on the chair can take a bath to a sufficient depth while sitting on the chair without taking a cramped posture.

  That is, as described above, the backrest portion is divided into an upper backrest portion and a lower backrest portion, and the lower backrest portion is pivotally supported at the lower end of the upper backrest portion via a pivot shaft. Thus, the posture of the upper backrest portion is constant, and only the lower backrest portion rotates about the pivot shaft. Therefore, by rotating the lower backrest portion in the forward direction of the seat portion, the heel portion of the person seated on the seat portion can move forward and can be lifted, so that it can be brought into the bathtub from outside the bathtub. There is no need to lift or lift the chair when moving it. In addition, since only the lower backrest part is only pivoted to the front side of the seat part, the size of the entire chair in the longitudinal direction of the seat part is not so large, so that a person is seated in a bathtub with a short longitudinal dimension. While being able to enter a bath, since the person who sat down is sleeping a little, it is possible to bathe to a sufficient depth.

  Also, the bathing care apparatus of the present invention is a bathing care apparatus that is configured to lower a chair into a bathtub by a chair lifting device and to take a bath while a person is seated on the chair, as described above. The chair includes a chair main body having a backrest portion and a seat portion, and a foot support. The foot support supports a foot placement portion on which a person sitting on the chair main body places a foot, and the foot placement portion. The footrest support arm includes a footrest support arm, and the footrest support arm is located near the front end of the seat body of the chair body, and a bathing posture position in which a seated person is held in a folded knee position. And the chair seating posture position in which the footrest portion is positioned below the bathing position relative to the bathing posture position is selectable, so that when the footrest portion is in the bathing posture position, The feet of the person who lifted up are lifted by the footrest and the body is slightly It can be held in posture, such as. Therefore, the person can be bathed to a sufficient depth while sitting on the chair.

  According to the present invention, a cared person can take a bath to a sufficient depth.

It is a perspective view of the bathing care device concerning a 1st embodiment of the present invention arranged in a bathroom. It is a perspective view of the part of the chair of the bathing care apparatus of FIG. It is a top view of the bathing care apparatus of FIG. It is a side view of the bathing care apparatus of FIG. It is a side view of the part of the chair which shows the state in the middle of making the leg mounting unit of the chair of the bathing care apparatus of FIG. 1 into a bathing posture position. It is a side view of the chair which shows the state which made the foot mounting unit of the chair of the bathing care apparatus of FIG. 1 into the bathing posture position. It is the perspective view which looked at the state which made the chair of the raising / lowering chair unit of the bathing care apparatus of FIG. 1 into the bathing position, and was slid to the bathtub side from the back side of the raising / lowering chair unit. It is sectional drawing of the raising / lowering chair unit of FIG. It is a partially notched perspective view showing the state which lowered | hung the chair in the bathtub. It is a side view of the state which folded the chair. It is a perspective view of the chair of the bathing care apparatus concerning a 2nd embodiment of the present invention. It is a rear view of the foot placement unit of the chair of FIG. It is the figure which looked at the state before sliding the lower arm of the leg | foot mounting unit of the chair of FIG. 11 upwards from the side surface side. It is the figure which looked at the state which made the lower arm of the leg | foot mounting unit of the chair of FIG. 11 slide upwards from the side surface. It is the figure which looked at the state rotated until the leg | foot mounting unit of the chair of FIG. 11 contacted the seat part from the side surface side. It is the figure which looked at the bathing attitude | position of the chair of FIG. 11 from the side surface side. It is a top view which illustrates roughly operation of the bathing care device concerning a 3rd embodiment of the present invention, and the figure (a) is the state where it has arranged the upper part so that a chair may face a bathtub, the figure (b) ) Represents a state in which the chair is lowered into the bathtub. FIG. 18A is a side view schematically illustrating the operation of the bathing care apparatus of FIG. 17, in which FIG. 17A shows a state in which the chair is arranged at the top so as to face the bathtub, and FIG. It shows the state of being lowered. It is a top view which illustrates roughly operation | movement of the bathing care apparatus which concerns on 4th Embodiment of this invention, Comprising: The figure (a) is the state which has arrange | positioned the chair in the position where the cared person M can seat, the figure (B) shows the state which has arrange | positioned a chair in the upper part so that it may face a bathtub, and the same figure (c) represents the state which lowered | hung the chair in the bathtub. FIG. 20A is a side view schematically illustrating the operation of the bathing care apparatus of FIG. 19, in which FIG. 19A shows a state in which the chair is placed in a position where the cared person M can be seated, and FIG. The state arrange | positioned at the upper part so that it may face a bathtub, the same figure (c) represents the state which lowered | hung the chair in the bathtub. It is a side view of the bathing care apparatus concerning this Embodiment 5 of this invention, The figure (a) is a side view in case the chair is contacting the bottom part of a bathtub in a bathing care apparatus, The figure (b) These are side views when the chair is further inclined with respect to the casing from the state of (a). It is sectional drawing of the casing vicinity of FIG. It is a side view which shows the modification of FIG. 21, The figure (a) is a side view in case the chair is contacting the bottom part of a bathtub in a bathing care apparatus, The figure (b) is the figure of (a). It is a side view in case a chair further inclines with respect to a casing from a state. It is the bathing care apparatus which concerns on the modification of this invention, The figure (a) is a side view in case the chair is contacting the bottom part of the bathtub in the bathing care apparatus which concerns on a modification, The figure (b) It is a side view in case the chair further inclines with respect to a casing from the state of (a). It is a figure explaining the bathing state of an Example. It is a figure explaining the bathing state of a comparative example. It is a perspective view of the conventional bathing care apparatus. It is a figure which illustrates the use condition of the apparatus of FIG. 27 schematically, Comprising: The same figure (a) connects a 1st rail part and a 2nd rail part, and moves an elevator chair unit to the 2nd rail part side. FIG. 4B shows a state where the lifting / lowering chair unit is moved to the second rail portion side, and FIG. 4C shows a state where the chair is lowered into the bathtub.

<1. First Embodiment>
Hereinafter, the bathing care apparatus according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of a bathing care apparatus according to a first embodiment arranged in a bathroom. FIG. 2 is a perspective view showing a chair of the bathing care apparatus of FIG. 3 is a plan view of the bathing care apparatus of FIG. FIG. 4 is a side view of the bathing care apparatus of FIG. FIG. 5 is a side view of a portion of the chair showing a state in the middle of setting the foot placement unit of the chair of the bathing care apparatus of FIG. 1 to the bathing posture position. FIG. 6 is a side view of the chair showing a state in which the foot placement unit of the chair of the bathing care apparatus of FIG. 1 is in the bathing posture position. FIG. 7 is a perspective view of a state where the chair of the lift chair unit of the bathing care apparatus of FIG. 1 is in a bathing posture and is slid to the bathtub side, as viewed from the back side of the lift chair unit. FIG. 8 is a cross-sectional view of the lift chair unit of FIG. FIG. 9 is a partially cutaway perspective view showing a state where the chair is lowered into the bathtub. In the following, the description will be made based on the directions shown in each figure in addition to FIG. However, the present invention is not limited by this orientation.

  As shown in FIG. 1, this bathing care apparatus A is for assisting a cared person M, who is a user, to enter or exit the bathtub 9 from the washroom or take a bath in the bathtub 9. The elevator chair unit 1 for raising and lowering the chair and the rail unit 2 for moving the elevator chair unit 1 are provided. Hereinafter, the lift chair unit 1 and the rail unit 2 will be described in detail.

(1) Lifting chair unit 1
As shown in FIG. 1, the lift chair unit 1 includes a chair 3a on which a cared person M is seated and a lift device 3b that lifts and lowers the chair 3a in the vertical direction.
(1-1) Chair 3a
As shown in FIG. 2, the chair 3 a includes a backrest portion 4, a seat portion 5, a foot support 6 a, a pair of armrests 7, and a support arm drive mechanism 8.

(A) Backrest 4
As shown in FIG. 1 and FIG. 2, the backrest portion 4 has an upper backrest portion 41, a lower backrest portion 42 disposed below the upper backrest portion 41, and an upper backrest portion 41 and a lower backrest portion 42 that are rotatable. And the lower backrest part 42 is integrally connected to a seat part 5 to be described later. The upper backrest part 41 is formed in a planar shape extending in the vertical direction, and mainly supports the upper part of the back of the cared person M. In addition, the upper backrest part 41 may incline from back to front as it goes from the upper part to the lower part. As shown in FIGS. 2 and 4 and the like, a chair support member 44 is attached to the upper back portion 41 on the back surface (rear surface). The chair support member 44 is connected to the lifting device 3b and is moved in the vertical direction by the lifting device 3b. Accordingly, the entire chair 3a including the upper backrest portion 41 moves in the vertical direction. This will be described later.

  The lower backrest part 42 is located below the upper backrest part 41 and is formed in a flat shape so as to mainly support the lower part of the back of the cared person M. The lower backrest portion 42 may be formed in a flat shape slightly inclined forward with respect to the upper backrest portion 41. And the lower end of the upper backrest part 41 and the upper end of the lower backrest part 42 are connected by the rotating shaft 43 extended in a horizontal direction. As a result, the lower backrest portion 42 rotates in the vertical direction with respect to the upper backrest portion 41 around the rotation shaft 43. The rotation of the lower backrest portion 42 occurs when the belt support bar 63 moves up and down, which will be described later.

  The vertical length from the lower end of the lower backrest portion 42 (seat surface of the seat portion 5) to the upper end is not particularly limited, but is the average length of the Japanese from the upper end of the sacrum to the lower scapular angle. ˜45 cm is preferred. That is, if the length in the vertical direction is too short, the lower backrest portion 42 rotates upward with respect to the upper backrest portion 41 at the waist position of the cared person M seated on the seat portion 5. Therefore, if the rising angle (bending angle) of the lower backrest portion 42 with respect to the upper backrest portion 41 is increased, a large burden is placed on the waist of the cared person M seated on the seat portion 5. As a result, when the burden on the cared person M is taken into consideration, the lower backrest part 42 cannot be greatly raised relative to the upper backrest part 41. Therefore, it is difficult to bathe the cared person M to a sufficient depth with an easy posture. On the other hand, if the length of the lower backrest portion 42 in the vertical direction is too long, the lower backrest portion 42 becomes the upper backrest portion 41 in a place where the upper body of the care receiver M seated on the seat portion 5 is difficult to bend. Rotate upward. For this reason, for example, a large burden is placed on the neck of the cared person M. Furthermore, since the length of the lower backrest portion 42 in the vertical direction is large, when the lower backrest portion 42 rotates upward, the lower backrest portion 42 protrudes forward and is not suitable for the bathtub 9 having a short longitudinal dimension. From the above viewpoint, it is preferable to set the length of the lower backrest part 42 as described above.

(B) Seat 5
As described above, the seat portion 5 is continuous with the lower end side of the lower backrest portion 42 and is formed integrally with the lower backrest portion 42. The seat portion 5 is formed in a planar shape, extends in the front-rear direction so as to bend with respect to the lower backrest portion 42, and mainly supports the care receiver M's buttocks. Since the seat portion 5 is continuous with the lower backrest portion 42, the seat portion 5 rotates together with the lower backrest portion 42. In addition, while the upper backrest 41 and the lower backrest 42 are separated, the upper backrest 41, the lower backrest 42, and the seat portion 5 form a continuous surface as a whole, so that care is taken. The buttocks are stably supported from the back of the person M.

(C) Foot support 6a
The foot support 6 a is disposed below the seat portion 5. The foot support 6a includes a pair of left and right flat plate-like foot placement portions 62 on which both feet of the care recipient M can be placed, a support arm 61 that supports the foot placement portion 62, and a belt support bar 63. ing.

  As shown in FIG. 5, the support arm 61 is a rod-shaped member, and the upper end portion thereof is fixed to the lower backrest portion 42. Specifically, the upper end portion of the support arm 61 is rotatably attached to an arm pivot shaft 60 that is provided near the center of the back surface of the lower backrest portion 42 and extends to the left and right. The support arm 61 extends from the back surface of the lower backrest portion 42 to the front of the seat portion 5 through the lower portion of the seat portion. That is, the support arm 61 is bent so as to correspond to the bending of the seat portion 5 with respect to the lower backrest portion 42. And the both leg mounting part 62 is connected with the lower end part of the support arm 61 rotatably. Specifically, the lower end portion of the support arm 61 is rotatably connected between the rectangular foot placement portions 62 arranged in the horizontal direction.

  The bending angle of the support arm 61 is larger than the bending angle between the lower backrest part 42 and the seat part 5. Thereby, in the side view of FIG. 5 in which the lower backrest part 42 and the support arm 61 overlap each other, the foot support arm 61 is bent downward from the seat part 5 as it goes forward.

  The belt support bar 63 is a rod-shaped member extending in the left-right direction. The belt support bar 63 is connected to the vicinity of the bent portion of the support arm 61 extending in the front-rear direction as shown in FIGS. The belt support bar 63 moves up and down in response to a pull from a belt 82 described later. The support arm 61 rotates in the vertical direction about the arm pivot shaft 60 described above as the center of rotation as the belt support bar 63 moves in the vertical direction.

(D) Armrest 7
The armrest 7 is provided on each of the left and right sides of the chair, and includes an armrest main body 71 that extends so that the arm can be placed thereon, and a main body pivot portion 72 that is integrally provided at the base end of the armrest main body 71. ing. The armrest body 71 has a width and a length that allow the cared person M to place both arms. And the main-body pivot part 72 is attached to the both ends of the rotating shaft 43 of the chair 3 mentioned above so that rotation is possible. Further, a cavity is formed in the interior from the main body pivot part 72 to the tip of the armrest body 71, and the belt 82 is inserted into this cavity. In order to smoothly slide the belt (linear member) 82 in the cavity, for example, an insertion start portion of the belt 82 into the main body pivotal support portion 72 and a feeding portion of the belt 82 from the armrest main body 71 (a distal end portion of the armrest main body). A guide roller (not shown) is provided inside.

  In addition, the armrest 7 can take a retracted position and a use position when not in use by the main body pivot portion 72 rotating around the rotation shaft 43. That is, as shown by a two-dot chain line in FIG. 4, in the retracted position, the main body pivot part 72 is arranged extending in the vertical direction so that the main body pivot part 72 is arranged at the upper part and the armrest main body 71 is arranged at the lower part. At this time, the armrest body 71 is substantially parallel to the lower backrest portion 42. On the other hand, when the armrest 7 is set to the use position, as shown by a solid line in FIG. 4, the main body pivot 72 is rotated with respect to the rotation shaft 43, and the armrest main body 71 extends forward from the main body pivot 72. To do. Although not shown, the armrest 7 can be fixed at a use position or a retracted position by a lock means such as a lock pin.

(E) Support arm drive mechanism 8
Next, the support arm mechanism will be described. The support arm mechanism 8 moves the belt support bar 63 described above up and down. As shown in FIG. 2, the support arm drive mechanism 8 includes a hanger part 81, a hanger part raising / lowering motor (not shown), and a pair of left and right belts 82. The hanger portion 81 is a plate-like member that is disposed on the back surface of the upper backrest portion 41 and extends in the left-right direction, and corresponds to the width between the left and right armrest main bodies 71 described above in the left-right direction of the upper backrest portion 41. It sticks out. A belt-like belt 82 is connected to each of the left and right end portions of the hanger portion 81. These belts 82 are inserted from the left and right ends of the hanger portion 81 into cavities inside the left and right main body pivot portions 72 and the armrest main body 71, respectively. The belt 82 drawn from the tip of the armrest main body 71 is connected to both ends of the belt support bar 63, respectively. The belt 82 is not particularly limited, and examples thereof include a resin such as polyester fiber or a fiber-reinforced resin tape, a rubber belt, a leather belt, and a metal belt.

  As shown in FIG. 5, the hanger part 81 is attached between the upper backrest part 41 and the chair support member 44, and is connected to the hanger part raising / lowering motor. The hanger part 81 moves up and down along the back surface of the upper backrest part 41 together with the chair support member 44 by driving of the hanger part lifting motor. When the hanger portion 81 moves up and down, the belt support bar 63 connected to the hanger portion 81 via the belt 82 also moves up and down.

  When the belt support bar 63 rises, the support arm 61 swings upward about the arm pivot shaft 60, and the portion of the support arm 61 from the arm pivot shaft 60 to the belt support bar 63 as shown in FIG. Comes into contact with the back surface of the lower backrest portion 42. Thereby, the belt support bar 63 is positioned with respect to the lower backrest part 42 and the seat part 5, and the position of the foot rest part 62 with respect to the seat part 5 is fixed. As shown in FIG. 5, the support arm 61 may not contact the back surface of the lower backrest portion 42, but the support arm 61 may contact the back surface of the seat portion 5. You may contact | abut to the back surface of both the backrest part 42 and the seat part 5. FIG.

  When the belt support bar 63 is pulled further upward from the state of FIG. 5, the support arm 61 that is in contact with the back surface of the lower backrest portion 42 pushes the lower backrest portion 42 upward. At this time, the lower backrest portion 42 receives a force from below by the support arm 61 and rotates together with the seat portion 5 about the rotation shaft 43. Here, as shown in FIGS. 4 and 5, a state in which the inclination direction of the upper backrest portion 41 and the inclination direction of the lower backrest portion 42 substantially coincide, that is, the inclination direction of the upper backrest portion 41 and the lower backrest. A state where the angle formed by the inclination direction of the portion 42 is large (a state close to 180 degrees) is defined as a first state. On the other hand, a state where the angle formed by the inclination direction of the upper backrest portion 41 and the inclination direction of the lower backrest portion 42 is reduced, that is, the state of FIG. 6 in which the lower backrest portion 42 is bent with respect to the upper backrest portion 41. Is in the second state. As described above, the lower backrest portion 42 is rotated by moving the belt support bar 63 up and down, and the state of the backrest portion 4 can be switched at least between the first state and the second state.

  The seat portion 5 and the lower backrest portion 42 are rotated by the vertical movement of the belt support bar 63, and the foot placement portion 62 is rotated at the distal end portion of the support arm 61. For example, as shown in FIGS. 4, 5, and 6, when the seat portion 5 swings upward, the footrest portion 62 is gradually inclined upward from the horizontal direction. Thereby, since the foot placement part 62 inclines according to the state of the backrest part 4, the cared person M can sit on the chair 3a in a more stable state and can place the foot on the foot placement part 62. is there. For example, when moving the chair 3a beyond the upper frame 91 of the bathtub 9, the effort which moves the footrest part 62 can be saved, and care work can be simplified.

(1-2) Lifting device 3b
Next, the lifting device will be described. As shown in FIG. 1 etc., the raising / lowering apparatus 3b raises / lowers the chair 3a to the up-down direction, and it penetrates this casing 31 in the up-down direction, and the casing (apparatus main body) 31 formed in plate shape and extended up and down. A trapezoidal screw 33 and a pair of guide shafts 35 disposed on the front surface of the casing 31 are provided. The casing 31 extends in the vertical direction corresponding to the back surface of the upper backrest portion 41, and has an internal space in which various members can be accommodated. Examples of various members housed in the casing 31 include the above-described trapezoidal screw 33, a chair lifting motor, a hanger lifting motor, a battery, and a control device (not shown). The various motors can be driven by operating a remote controller and various switches, for example.

  As shown in FIG. 8, the trapezoidal screw 33 extends in the vertical direction longer than the vertical length of the upper backrest portion 41 in the casing 31. A motor for raising and lowering the chair (not shown) is connected to the trapezoidal screw 33, and the trapezoidal screw 33 is rotated forward and backward by rotating the chair raising and lowering motor (not shown) in the forward and reverse directions. Note that the trapezoidal screw 33 may have a structure that can be manually rotated forward and backward from the outside of the casing 31 in the event of a motor failure.

  Further, as shown in FIGS. 1 and 9, a slit 31 a extending in the vertical direction is formed in a substantially central portion on the side of the casing 31 facing the upper backrest portion 41. The slit 31 a communicates with the internal space of the casing 31. Further, two guide shafts 35 are provided on both sides of the slit 31a. The guide shaft 35 is slidably fitted into a guide hole or a guide groove (not shown) provided in the chair support member 44 on the back surface of the upper backrest portion 41. Thereby, the chair support member 44 can move up and down with respect to the casing 31. Further, the chair support member 44 provided on the back surface of the upper backrest portion 41 is provided with a screw portion (not shown). The screw portion is inserted into the slit 31 a and meshed with the trapezoidal screw 33. Accordingly, when the trapezoidal screw 33 rotates, the chair support member 44 moves up and down along the guide shaft 35 together with the screw portion meshing with the trapezoidal screw 33. Thus, the upper backrest 41 moves up and down via the chair support member 44. With the above configuration, the entire chair 3a moves in the vertical direction along the guide shaft 35 while being restrained from tilting left and right. In addition, since the screw part of the chair support member 44 and the trapezoidal screw 33 are connected, the movement of the upper backrest part 41 in the front-rear direction is restricted. The trapezoidal screw 33, chair lifting motor, screw portion, guide shaft 35, guide groove, and the like correspond to the lifting mechanism of the present invention. This also applies to the following embodiments.

(2) Rail unit 2
Next, the rail unit 2 will be described. As shown in FIG. 1, FIG. 3, etc., the rail unit 2 includes a fixed rail portion 2a fixed to the bathtub 9, and a slide support portion 2b supported slidably on the fixed rail portion 2a. Hereinafter, each member will be described in detail.

(2-1) Fixed rail portion 2a
The fixed rail portion 2a includes a rail portion main body 21 and a pair of rail support arms 25 respectively connected to both ends of the rail portion main body. As shown in FIG. 1, the rail part main body 21 is attached to the bathroom wall surface W of the back surface of the raising / lowering chair unit 1 so that it may extend in the left-right direction and is located on the upper frame 91 of the bathtub 9 rear side. As shown in FIGS. 4 and 8, the rail portion main body 21 is composed of a set of rails, and the set of rails are arranged at intervals. The slide support 2b is slidably disposed between these rails. In addition, a large number of slide rollers 21a are attached to the inner walls of the two opposing rails of the rail portion main body 21 at substantially equal pitches in the left-right direction so as to face each other. The slide roller 21a rotates at its mounting position in accordance with the movement of the slide support portion 2b, and facilitates sliding of the slide support portion 2b with respect to the fixed rail portion 2a.

  The rail support arm 25 is formed in a plate shape, and is formed to extend forward from both ends of the rail portion main body 21 so as to be orthogonal to the rail portion main body 21. And these rail support arms 25 are arrange | positioned so that a plate-shaped surface may follow along the left-right upper frame 91 of the bathtub 9, and the load concerning the rail part main body 21 is supported by the upper frame 91 of the bathtub 9. FIG.

(2-2) Slide support portion 2b
The slide support portion 2 b includes a slide support body 22 that extends in the left-right direction, a movable rail portion 22 a that is fixed to the slide support body 22, and a support leg portion 23 that supports the slide support body 22. As shown in FIGS. 1, 4 and 8, the slide support main body 22 is attached to the lower part of the casing 31, and is disposed between the opposed rails of the fixed rail portion 2a as described above. The outer surface of the slide support main body 22 faces both rails of the rail portion main body 21, and the movable rail portion 22a described above is provided on the outer surface. The movable rail portion 22a is slidably engaged with the slide roller 21a of the rail portion main body 21, and supports the casing 31 so as to be movable in the left-right direction. Thereby, the raising / lowering chair unit 1 fixed to the casing 31 is also supported by the slide support part 2b so that the movement to the left-right direction is possible. Therefore, the lift chair unit 1 is movable in the left-right direction between the wash floor WF side and the bathtub 9 side. Moreover, the lifting / lowering chair unit 1 may be fixed by locking means such as a lock pin on each of the wash floor WF side and the bathtub 9 side.

  The support leg 23 supports the slide support main body 22. Therefore, the lift chair unit 1 attached to the slide support body 22 is also supported. The support leg 23 includes a vertical portion 23a extending in the vertical direction and a horizontal portion 23b extending horizontally from the lower end of the vertical portion. And the upper end of the vertical part 23a is being fixed to the left end part of the slide support main body 22 via the connection part 26, for example using the screw | thread. The vertical portion 23a extends downward from the connecting portion 26 to the vicinity of the washroom floor WF. And the horizontal part 23b is extended in the front-back direction along the washroom floor WF from the lower end part of the vertical part 23a. In addition, wheels 24 are attached to both front and rear ends of the horizontal portion 23b. These wheels 24 are configured to move while rotating on the washroom floor WF when the movable rail portion 22a moves along the fixed rail portion 2a.

  In addition, the horizontal distance between the outer side surface of the bathtub 9 and the wheel 24 can be adjusted according to the width of the washroom floor surface WF by changing the attachment position of the connecting portion 26 to the slide support main body 22. .

(3) Use Mode of Bathing Care Device A Next, the use mode of the bathing care device A will be described with reference to FIGS.

  First, the caregiver fits the slide support portion 2b from the left end portion of the fixed rail portion 2a, and arranges the lift chair unit 1 on the outer side (left side) of the bathtub 9, as shown in FIGS. . Next, adjustment is made to a first state in which the inclination direction of the upper backrest portion 41 and the inclination direction of the lower backrest portion 42 are substantially the same. Then, the caregiver operates the remote controller or the like to activate the chair lifting / lowering motor of the lifting / lowering device 3b, and sits the height of the lifting / lowering chair unit 1 including the seat portion 5 according to the length of the care receiver M. Adjust to an easy height.

  Next, manually or automatically, the armrest body 71 is rotated around the rotation shaft 43 to move the armrest body 71 downward to the retracted position so as to be in the state shown in FIGS. Thereby, when the caregiver puts the cared person M on the chair 3a, the armrest main body 71 does not get in the way. For example, the caregiver lays the cared person M on the wheelchair on the chair 3a and moves the cared person M from the wheelchair to the chair 3a. The cared person M may be placed on the chair 3a from the front of the chair 3a while the armrest body 71 is positioned at the use position.

  Thus, when the cared person M sits on the chair 3a, the armrest main body 71 is rotated around the rotation shaft 43 manually or automatically and moved to the use position shown in FIGS.

  Subsequently, the caregiver operates the remote controller and the like to operate the hanger lifting / lowering motor to change the posture of the chair 3a to the posture of FIG. 6, that is, the bathing posture through the postures of FIGS. Specifically, first, in the state of FIG. 4, the hanger part raising / lowering motor is operated to raise the hanger part 81, and the belt 82 connected to the hanger part 81 is pulled upward. As the belt 82 is pulled up, the belt support bar 63 is pulled up, and the support arm 61 rotates about the arm pivot shaft 60. When the belt 82 is further lifted upward from this state, as shown in FIG. 5, at least a part of the support arm 61 hits the back surface of the lower backrest portion 42, and the footrest portion 62 is against the seat portion 5. Positioned. The foot placement portion 62 is rotated in conjunction with the rotation of the support arm 61. In FIG. 5, the angle formed by the placement surface of the foot placement unit 62 and the horizontal direction is, for example, about 10 °.

  Thereafter, when the remote controller or the like is further operated, the belt support bar 63 is further lifted. As a result, a force including an upward component is applied to the lower backrest portion 42 and the seat portion 5 from below, and the rotation shaft 43 is supported while being supported by the support arm 61 connected to the belt support bar 63. It rotates upward to the center, and the state shown in FIG. 6 is obtained. The state of the cared person M at this time is the state of FIG. 8, and the upper part of the spine of the cared person M is supported by the fixed upper backrest part 41. On the other hand, the lower part of the spine of the cared person M, the lower back and the buttocks are supported by the lower back part 42 and the seat part 5 slid upward and forward, and the bathing posture such that the body of the cared person M sleeps a little. Become. At this time, as shown in FIG. 6, the angle formed by the horizontal direction with the placement surface of the foot placement portion 62 is, for example, about 40 °.

  In addition, the cared person M seated on the chair 3a in the bathing posture of FIG. 8 feels cramped when the angle formed between the spine near the hip bone and the femur is too small. On the other hand, if the aforementioned angle is too large, the distance between the footrest 62 and the seat 5 becomes long. Therefore, in the case of the bathtub 9 having a short longitudinal dimension, there is a possibility that the foot tip hits the inner wall of the bathtub 9. Therefore, it is preferable to rotate the lower backrest part 42 and the seat part 5 with respect to the upper backrest part 41 so that the angle between the spine near the hip bone and the femur is 75 ° to 80 °. More preferably, the angle between the spine near the hip bone and the femur is adjusted to be 76 ° to 78 °.

  Next, the remote controller or the like is further operated to operate the chair lifting / lowering motor of the lifting / lowering device 3b. Thereby, the chair 3a is raised until the lower end of the seat portion 5 is slightly higher than the upper frame 91 and the rail support arm 25 on the washing floor surface WF side. In this state, as shown in FIGS. 7 and 8, the lift chair unit 1 is slid rightward from the wash floor WF to the bathtub 9 side. At this time, the slide support body 22 moves to the right side together with the support leg 23 while being supported by the support leg 23. And if the chair 3a is located above the bathtub 9, it will lock in that position so that the raising / lowering chair unit 1 may not slide.

  Subsequently, as shown in FIG. 9, the caregiver operates the remote controller or the like to activate the chair lifting motor, and lowers the chair 3 a until the lower end of the foot support 6 a almost reaches the bottom of the bathtub 9. Thereby, the cared person M seated on the chair 3a is immersed in the hot water in the bathtub 9.

  When bathing is completed, the caregiver operates the remote controller or the like to operate the chair lifting motor to raise the chair 3a as shown in FIG. That is, the chair 3 a is raised to a position slightly higher than the upper frame 91 and the rail support arm 25. Next, the lock means is released, and the lifting / lowering chair unit 1 is slid out of the bathtub 9 and moved to the wash floor WF side. In this state, the lift chair unit 1 is locked at a position on the washing floor WF side by the locking means. Thereafter, the remote controller or the like is operated to operate the chair lifting motor to lower the chair 3a. Next, the armrest main body 71 is pushed down to be positioned at the retracted position. Then, the caregiver lays the wheelchair on the chair 3a and moves the cared person M to the wheelchair.

  If this bathing care apparatus A is used, it is difficult to stand, and it is possible to care for the care recipient M who cannot take a bath by himself.

  In addition, this bathing care apparatus A can be stored compactly as shown in FIG. 10 when not used for care. FIG. 10 is a side view of the chair folded. In FIG. 10, the lower backrest portion 42 and the seat portion 5 are lifted and held so as to overlap the upper backrest portion 41 around the rotation shaft 43. At this time, the armrest 7 is also stored so as to be close to the upper backrest 41 side.

  In this embodiment, one end of the belt 82 is connected to the belt support bar 63. For example, when the foot support 6a is not raised or lowered, one end of the belt 82 is removed from the belt support bar 63 and the lower backrest portion 42 or What is necessary is just to connect to the seat part 5.

(4) Features (4-1)
In the bathing care apparatus A, the backrest portion 4 includes an upper backrest portion 41 and a lower backrest portion 42, and the upper backrest portion 41 and the lower backrest portion 42 are formed as an entire backrest portion 4 by an elevating device 3b. It moves up and down along the casing 31 integrally. However, the upper backrest 41 moves only in the vertical direction and is fixed without rotating in the front-rear direction. On the other hand, the lower backrest portion 42 not only moves in the vertical direction along the casing 31 but also rotates around the rotation shaft 43 at the lower end of the upper backrest portion 41. As a result, the second state in which the upper backrest portion 41 and the lower backrest portion 42 are bent from the first state in which the upper surface extending from the upper backrest portion 41 to the lower backrest portion 42 extends in the vertical direction (FIG. 4 and the like). (Fig. 6 etc.).

  That is, the lower backrest part 42 is slightly bent upward, and the upper surface of the lower backrest part approaches the direction along the plane direction of the washroom floor WF. Therefore, the posture of the cared person M sitting on the upper backrest portion 41, the lower backrest portion 42, and the seat portion 5 is a bathing posture in which a little sleep is taken from the direction along the vertical direction. By immersing the cared person M in the bathtub 9 in such a bathing posture, even if the water surface of the bathtub 9 is low, all or most of the body of the cared person M is immersed in the hot water in the bathtub 9. be able to.

  At this time, when the lower backrest portion 42 is rotated upward about the rotation shaft 43, the integrally formed seat portion 5 is also rotated with the same angle with respect to the lower backrest portion 42 and is Lifted to. Therefore, the cared person M seated on the seat portion 5 can smoothly lift the toe side upward while maintaining a stable posture at the waist.

(4-2)
In the bathing care apparatus A of the above embodiment, when the care receiver M is in a bathing posture, the lower backrest portion 42 and the seat portion 5 of the backrest portion 4 are bent with respect to the upper backrest portion 41, The front end portion of the seat portion 5 moves forward. At this time, since the upper backrest part 41 does not move forward, the cared person M who is seated does not go too far forward. That is, it can suppress that the position of the seat part 5 and the footrest part 62 protrudes largely ahead compared with the case where both the upper backrest part 41 and the lower backrest part 42 protrude so that it may lie forward. Therefore, even in the bathtub 9 with a short dimension in the longitudinal direction, it is possible to suppress the feet of the care receiver M placed on the foot placement unit 62 from hitting the inner wall at the tip of the bathtub 9.

(4-3)
In the above-described embodiment, the footrest portion 62 is further rotated in the vertical direction while the lower backrest portion 42 and the seat portion 5 are rotated with respect to the upper backrest portion 41 by the driving of the hanger portion raising / lowering motor. Yes. Therefore, it is not necessary to separately provide the rotating means of the lower backrest part 42 and the seat part 5 and the rotating means of the footrest part 62, and the cost can be reduced.

(4-4)
The belt support bar 63 is pulled up by the belt 82 by the driving of the hanger part raising / lowering motor, and the support arm 61 hits the back surface of the lower backrest part 42. Thereby, the belt support bar 63 is positioned with respect to the lower backrest part 42 and the seat part 5, and the position of the foot rest part 62 with respect to the seat part 5 is fixed. Therefore, the cared person M sitting on the chair 3a can take a bath while maintaining a bathing posture such as sleeping a little in a stable state.

(4-5)
As the position of the armrest 7, a use position and a retracted position can be selected. When the cared person M is placed on the chair 3a, the armrest body 71 can be retracted. Thereby, an obstruction disappears in the side of the seat part 5 of the chair 3a, and it becomes easy to carry the cared person M from the side of the seat part 5. For example, when a wheelchair or the like is laid on the seat 5, the cared person M can easily and safely move the chair 3a from the wheelchair to the seat 5 and the burden on the cared person M and the carer can be reduced.

(4-6)
The belt 82 is guided to the back side of the backrest portion 4 through the inside of the armrest body 71, and the exposed area of the belt 82 is small. Therefore, it looks better than when many members are exposed and look complicated. Moreover, it can suppress that the belt 82 touches the cared person M seated on the chair 3a and is injured, and is excellent in safety.

(4-7)
As shown in FIG. 10, the chair 3 a can fold the lower backrest portion 42, the seat portion 5, the foot support 6 a, and the armrest 7 compactly upward so as to approach the upper backrest portion 41. Therefore, when a person who does not need care takes a bath, the chair 3a does not disturb the bath. Therefore, it is excellent in usability in a general household where people other than those who need care are also living.

(4-8)
In the bathing care apparatus A of the above embodiment, the care receiver M seated on the chair 3a can be moved up and down by the lifting device 3b. Therefore, it is not necessary to provide an elevating mechanism such as a lifting lift in the bathtub 9 and the vicinity thereof. Therefore, bathing care can be performed using the existing bathroom BR even in a general household where the bathroom BR is small, such as a low ceiling, and a small nursing facility.

<2. Second Embodiment>
Next, the structure of the bathing care apparatus B according to the second embodiment will be described with reference to FIGS. FIG. 11 is a perspective view of a chair of the bathing care apparatus according to the second embodiment of the present invention. 12 is a rear view of the foot placement unit of the chair of FIG. FIG. 13 is a view of a state before the lower arm of the foot placement unit of the chair of FIG. In the bathing care apparatus B according to the second embodiment, basically only the structure related to the chair 3c and the pulling wire 83 is different from the first embodiment. Therefore, below, the structure which is mainly different from 1st Embodiment is demonstrated, the same code | symbol is attached | subjected about the same structure as 1st Embodiment, and detailed description is abbreviate | omitted.

(1) Configuration of Bathing Care Device B As shown in FIGS. 11 to 13, the foot support 6 b according to the present embodiment includes an upper arm 65, a lower arm 64, and a foot placement unit 62. As shown in FIG. 12, the upper arm 65 is formed in a plate shape extending in the left-right direction. The upper arm 65 is rotatably attached to the back surface of the lower backrest portion 42. In addition, cylindrical slide holes 65 a extending in the vertical direction are formed at both the left and right ends of the upper arm 65.

  As shown in FIGS. 12 and 13, the lower arm 64 is provided below the upper arm 65. Specifically, the lower arm 64 includes a lower arm main body 64a, a pair of rod-shaped slide bars 64b, and a pair of pulling wire support bars 64c. As shown in FIG. 11, the lower arm main body 64a includes a plate-shaped first portion 64a1 extending in the left-right direction, a pair of second portions 64a2 extending upward from both left and right ends of the first portion 64a1, The first portion 64a3 has a third portion 64a3 extending obliquely downward and forward from the center of the first portion 64a1, and the first to third portions 64a1 to 64a3 are integrally formed. The lower ends of the pair of slide bars 64b described above are fixed to the second portion 64a2, respectively. The upper ends of the pair of slide bars 64b are slidably inserted into the slide holes 65a of the upper arm 65 described above. The slide bar 64b is provided with a stopper (not shown) at its upper end so as not to fall out of the slide hole 65a. With this configuration, the slide distance of the slide bar 64b is defined by the distance between the stopper and the second portion 64a2. In addition, a foot placement portion 62 is connected to the third portion 64a3.

  The pair of pulling wire support bars 64c are connected so as to protrude from the left and right ends of the first portion 64a1 of the lower arm body 64a. A pulling wire (wire material) 83 is connected to each end of each pulling wire support bar 64c. The pulling wire 83 has the same function as the belt 82 of the first embodiment, and is inserted into the armrest main body 71 like the belt 82 and can be rotated forward and backward by the driving force of an electric motor (not shown). Connected to a take-up roller (not shown). Therefore, when the pulling wire 83 is wound or fed out by driving the winding roller, the pulling wire support bar 64c connected to the pulling wire 83 is also moved up and down. The pulling wire 83 is not particularly limited, and examples thereof include a linear material such as a wire rope, a resin rope, and a chain. The pulling wire 83 may be the belt 82 of the first embodiment.

(2) Usage Mode of Bathing Care Device B Next, usage modes of the bathing care device B will be described with reference to FIGS. 14 to 16 in addition to FIGS. FIG. 14 is a side view of a state in which the lower arm of the foot placement unit of the chair of FIG. 11 is slid upward. FIG. 15 is a view of a state in which the foot placement unit of the chair of FIG. 11 is rotated from the side face until it hits the seat. FIG. 16 is a view of the bathing posture of the chair of FIG. 11 as viewed from the side.

  The procedure until the care receiver M is seated on the chair 3c is substantially the same as that in the first embodiment. That is, when the cared person M is put on the chair 3c, the take-up wire 83 is sent out by rotating the winding roller with a remote controller or the like. At this time, the pair of pulling wire support bars 64c connected to the pulling wire 83 is lowered, and accordingly, the lower arm main body 64a connected to the pair of pulling wire support bars 64c is also lowered. As a result, the slide bar 64b connected to the lower arm main body 64a is lowered until it comes into contact with the stopper, and the footrest 62 is lowered.

  Then, the cared person M is seated on the chair 3c as shown in FIG. 13, and the armrest body 71 is rotated and positioned at the use position. Next, the winding roller is rotated to gradually wind the pulling wire 83, and the lower arm main body 64a is lifted upward. At this time, when the pulling wire 83 is wound up, the slide bar 64b slides upward so as to be accommodated in the slide hole 65a of the upper arm 65, as shown in FIGS. When the lower arm main body 64a contacts the upper arm 65, the insertion of the slide bar 64b into the slide hole 65a is completed. As the slide bar 64b rises, the foot placement part 62 rises substantially parallel to the sliding direction of the slide bar 64b.

  Thereafter, in response to further pulling from the pulling wire 83, the lower arm main body 64a is pulled upward as shown in FIG. At this time, as the lower arm main body 64a is pulled upward, the upper arm 65 rotates on the back surface of the lower backrest portion. As a result, the lower arm main body 64 a abuts on the back surface of at least one of the lower backrest portion 42 and the seat portion 5. At this time, as the lower arm main body 64a is raised, the footrest 62 is also raised.

  Further, when the pulling wire 83 is wound up, as shown in FIG. 16, the lower arm body 64a is raised, and the lower backrest part 42 and the seat part 5 are pushed up from the back by the lower arm body 64a. Thereby, the lower backrest part 42 and the seat part 5 rotate upward with respect to the upper backrest part 41. As a result, the lower backrest part 42 and the seat part 5 are bent with respect to the upper backrest part 41, and the body of the cared person M sitting on the chair 3c takes a bathing posture.

  In the above-described embodiment, one end of the pulling wire 83 is connected to the pulling wire support bar 64. For example, when the foot support 6b is not raised or lowered, one end of the pulling wire 83 is detached from the pulling wire support bar 64 and What is necessary is just to connect to the backrest part 42 or the seat part 5.

(3) Features In the chair 3c of the bathing care apparatus B, the foot support 6b includes the upper arm 65, the lower arm 64, and the foot placement portion 62. In particular, when the pulling wire 83 is wound, the slide bar 64 b of the lower arm 64 slides along the slide hole 65 a of the upper arm 65. In response to this, the foot placement section 62 rises substantially parallel to the direction in which the slide bar 64b extends the slide hole 65a. This is because when the slide bar 64b rises along the slide hole 65a, the foot placement portion 62 is restricted from moving forward of the seat portion 5. Thereby, in the bathing posture of FIG. 16, the foot placement portion 62 can be disposed at a position close to the tip of the seat portion 5. As a result, the length in the front-rear direction of the chair 3c in the bathing posture can be sufficiently reduced, and the chair 3c can be used even in the bathtub 9 having a short longitudinal dimension.

  Furthermore, even in the seated state of FIG. 14, the footrest 62 can be disposed almost directly below the distal end of the seat 5 so that the cared person M can stably sit on the chair 3c. . That is, when the pulling wire 83 is fed out, the pulling wire support bar 64c descends substantially parallel to the direction in which the slide bar 64b slides along the slide hole 65a. Here, the foot placement part 62 is connected to the lower arm main body 64a to which the pulling wire support bar 64c is attached. Therefore, the foot placement part 62 descends substantially parallel to the direction in which the slide bar 64b slides along the slide hole 65a. Therefore, the foot placement part 62 can be arranged almost directly below the tip of the seat part 5. That is, the foot placement portion 62 is not disposed at a position farther forward than the lower end of the seat portion 5 or is not disposed at a position behind the distal end of the seat portion 5. As a result, the cared person M can place his / her feet on the foot placement portion 62 at a position close to the seat portion 5 and can be seated stably.

  Thus, in this embodiment, since the slide bar 64b has a mechanism that slides along the slide hole 65a, it is stable even when the care receiver M is in the bathing position or seated on the chair 3c. It can be maintained in a state.

<3. Third Embodiment>
Next, the structure of the bathing care apparatus C according to the third embodiment will be described with reference to FIGS. 17 and 18. FIG. 17 is a plan view schematically explaining the operation of the bathing care apparatus C according to the third embodiment of the present invention, in which FIG. 17 (a) is a state in which the chair is arranged at the top so as to face the bathtub. FIG. 4B shows a state where the chair is lowered into the bathtub. FIG. 18 is a side view schematically illustrating the operation of the bathing care apparatus C of FIG. 17, in which FIG. 18 (a) is a state in which the chair is arranged at the upper part so as to face the bathtub, FIG. 18 (b). Represents a state where the chair is lowered into the bathtub. Constituent parts similar to those in the first embodiment are denoted by the same reference numerals, and hereinafter, different parts from the bathing care apparatus A of the first embodiment will be mainly described.

(1) Configuration of Bathing Care Device C As shown in FIGS. 17 and 18, the chair 3d of the bathing care device C according to this embodiment includes a backrest portion 4 similar to the chair 3a of the first embodiment, And a seat portion 5. That is, the backrest portion 4 includes an upper backrest portion 41, a lower backrest portion 42, and a rotation shaft 43. However, unlike the first embodiment, the bathing care apparatus C according to the present embodiment has a spring (not shown) that biases the lower backrest portion 42 forward, and a spring lock means (not shown) that regulates the bias of the spring. ). When the spring locking means for restricting the spring bias is released, an upward force is applied to the lower backrest portion 42 and the seat portion 5, and the lower backrest portion 42 is centered on the rotation shaft 43. The seat portion 5 is rotated upward with respect to the portion 41, and the seat portion 5 is also rotated upward.

  In the spring lock means, the position where the cared person M normally sits as shown in FIGS. 17 (a) and 18 (a) and the body of the cared person M shown in FIGS. 17 (b) and 18 (b) are a little. Fix the bathing position like sleeping. The installation position of the spring is not particularly limited as long as the lower backrest portion 42 can be urged forward. For example, the spring can be provided at a position adjacent to the rotation shaft 43 and the back surface of the lower backrest portion 42. Further, the position of the spring lock means only needs to be able to restrict the movement of the lower backrest portion 42 by the spring, and can be provided in the vicinity of the spring and the position adjacent to the lower backrest portion 42.

(2) Use Mode of Bathing Care Device C Next, the use mode of the bathing care device C will be described with reference to FIGS. 17 and 18 again. First, as shown in FIGS. 17 (a) and 18 (a), the chair 3d is placed at a position where the cared person M can easily sit, and the cared person M is seated on the chair 3d. At this time, the lower backrest 42 is restricted from being biased forward by the spring lock means.

  Next, by releasing the spring lock means, an upward force is applied by the biasing force of the spring, and the lower backrest portion 42 is moved forward together with the seat portion 5. Accordingly, as shown in FIGS. 17B and 18B, the lower backrest part 42 is rotated upward with respect to the upper backrest part 41 around the rotation shaft 43. At this time, the seat portion 5 also rotates upward together with the lower backrest portion 42. And the position of the lower backrest part 42 and the seat part 5 with respect to the upper backrest part 41 is fixed by locking with a spring lock means, and the chair 3d is made into a bathing posture. Subsequently, the lifting / lowering device 3b is operated using a remote controller or the like, and the chair 3d is lowered until the seat portion 5 is in contact with the substantially bottom surface of the bathtub 9, as shown in FIGS. 17 (b) and 18 (b).

  When bathing is completed, the lifting device 3b is operated to raise the chair 3d. Next, the caregiver removes the spring lock means and rotates the lower backrest portion 42 downward around the rotation shaft 43 while pressing the seat portion 5 against the urging force of the spring. Thus, when the backrest 4 and the seat 5 are returned to the state shown in FIGS. 17A and 18A, they are locked by the spring lock means. Thereafter, the caregiver moves to a wheelchair or the like on the wash floor WF side while supporting the cared person M sitting on the chair 3d.

(3) Features In the bathing care apparatus C, the lower backrest part 42 and the seat part 5 are rotated with respect to the upper backrest part 41 as in the previous embodiments, but this mechanism is a spring and spring lock means. The bathing care apparatus C can be reduced in cost by reducing the number of parts. Instead of the biasing means such as a spring, the lower backrest 42 may be rotated using power such as an electric motor. For example, power means such as an electric motor may be provided on the back surface of the lower backrest part 42, and the lower backrest part 42 and the seat part 5 may be moved by operating the power means.

<4. Fourth Embodiment>
Next, the structure of the bathing care apparatus D according to the fourth embodiment will be described with reference to FIGS. 19 and 20. FIG. 19 is a plan view for schematically explaining the operation of the bathing care apparatus according to the fourth embodiment of the present invention, in which FIG. 19 (a) shows the chair placed at a position where the cared person M can sit. A state, the figure (b), the state which has arrange | positioned a chair in the upper part so that it may face a bathtub, and the figure (c) represent the state which lowered | hung the chair in the bathtub. FIG. 20 is a side view schematically illustrating the operation of the bathing care apparatus of FIG. 19, in which FIG. 20 (a) shows a state where the chair is placed at a position where the cared person M can sit, ) Shows a state in which the chair is arranged at the top so as to face the bathtub, and FIG. 5C shows a state in which the chair is lowered into the bathtub. Constituent parts similar to those in the first embodiment are denoted by the same reference numerals, and hereinafter, different parts from the bathing care apparatus A of the first embodiment will be mainly described.

(1) Configuration of Bathing Care Device D As shown in FIGS. 19 and 20, in the bathing care device D according to the present embodiment, the chair 3e connects the chair body 36, the lifting device attachment portion 37, and these. And a hinge 38. The chair body 36 includes a backrest portion 4 and a seat portion 5. The backrest portion 4 includes an upper backrest portion 41, a lower backrest portion 42, and a rotating shaft 43, as in the above embodiments. The upper backrest portion 41 is attached to the lifting device attachment portion 37 via the hinge 38 and can be rotated in the horizontal direction. That is, the horizontal direction of the chair 3e can be changed. Further, the rotation of the upper backrest 41 via the hinge 38 can be fixed by a rotation lock means (not shown).

  The lifting device attachment portion 37 connects the upper backrest portion 41 of the chair body 36 and the trapezoidal screw 33 of the lifting device 3b. Therefore, the chair 3e moves up and down by driving the lifting device 3b, that is, by turning the trapezoidal screw 33. The bathing care apparatus D of the present embodiment is similar to the above-described bathing care apparatus C. A spring (not shown) that biases the lower backrest portion 42 forward, and a spring lock means (not shown) that restricts the biasing of the spring. (Omitted). Then, when the spring lock means for restricting the spring bias is released, the lower backrest portion 42 is applied with an upward force and rotates upward with respect to the upper backrest portion 41 about the rotation shaft 43. Accordingly, the seat portion 5 also rotates upward. Similar to the bathing care apparatus C described above, the spring and the spring lock means can be installed at various positions.

(2) Use Mode of Bathing Care Device D Next, the use mode of the bathing care device D will be described with reference to FIGS. 19 and 20 again. First, the rotation lock means is released, and the upper backrest portion 41 is rotated with respect to the lifting device attachment portion 37 via the hinge 38, as shown in FIGS. 19 (a) and 20 (a). The chair main body 36 is arranged so that 3e faces the outside of the bathtub 9, that is, the washroom floor WF (right side). At this time, the upper backrest portion 41 and the lower backrest portion 42 are positioned in the first state aligned in substantially the same plane, and the lower backrest portion 42 is restricted from being biased toward the seat portion 5 by the spring lock means. In this state, the caregiver seats the cared person M who has been transported to the bathroom by a wheelchair or the like on the chair body 36.

  Next, the rotation lock means is released, and the chair body 36 is rotated until the upper backrest portion 41 overlaps with the lifting device attachment portion 37 in the front view as shown in FIGS. 19 (b) and 20 (b). The chair 3e is arranged at a position facing the inside of the bathtub 9. That is, the care receiver seated on the chair 3e faces the front. In this state, the rotation of the chair body 36 is locked by the rotation lock means. Then, the spring locking means is released, and as shown in FIGS. 19C and 20C, an upward force is applied by the spring biasing force, and the lower backrest portion 42 is moved forward together with the seat portion 5. . Thereby, the lower backrest part 42 is rotated around the rotation shaft 43 with respect to the upper backrest part 41. The seat 5 also rotates with the lower backrest 42. And the position of the lower backrest part 42 and the seat part 5 with respect to the upper backrest part 41 is fixed by locking with a spring lock means, and the chair 3e is made into a bathing posture. Thereby, it becomes a bathing posture that the body of the cared person M sitting on the chair 3e is a little sleepy. And the raising / lowering apparatus 3b is operated and the chair 3e is lowered | hung until the seat part 5 contact | connects the substantially bottom face of the bathtub 9, as shown in FIG.19 (c) and FIG.20 (c).

  When bathing is completed, the lifting device 3b is operated to raise the chair body 36. Next, when the caregiver removes the spring lock means and presses down the seat portion 5 against the urging force of the spring and returns to the state shown in FIGS. 19B and 20B, the spring lock Lock by means. Next, the caregiver releases the rotation lock means. Then, the caregiver holds the chair 3e as shown in FIGS. 19 (a) and 20 (a) while supporting the seated person's M leg to be on the upper frame 91. Rotate to face the surface WF side. When the chair 3e faces the wash floor WF side, the caregiver fixes the chair 3e with the rotation lock means. Thereafter, the caregiver moves to a wheelchair or the like on the washing floor WF side while supporting the cared person M sitting on the chair 3e.

(3) Features In the bathing care apparatus D, the mechanism for moving the lower backrest part 42 and the seat part 5 has a simple configuration of springs and lock means, and the cost can be reduced by reducing the number of parts. Moreover, since the chair 3e can be rotated so as to face the washroom floor WF side, the cared person M can be easily moved from a wheelchair or the like. Instead of the biasing means such as a spring, the lower backrest part 42 may be rotated by applying a force including an upward component using power such as an electric motor, or the chair body 36 may be rotated. Alternatively, it may be performed using power such as an electric motor.

<5. Fifth Embodiment>
Below, the structure of the bathing care apparatus E which concerns on this Embodiment 5 is demonstrated using FIG. FIG. 21: is a side view of the bathing care apparatus which concerns on this Embodiment 5 of this invention, The figure (a) is a side view in case the chair is contacting the bottom part of a bathtub in the bathing care apparatus, Fig. (B) is a side view when the chair is further inclined with respect to the casing from the state of (a). FIG. 22 is a cross-sectional view showing a combined state of the casing and the chair. Constituent parts similar to those in the first embodiment are denoted by the same reference numerals, and hereinafter, different parts from the bathing care apparatus A of the first embodiment will be mainly described. In FIG. 21, the foot support and the armrest are omitted.

(1) Configuration and Usage of Bathing Care Device E The chair 3f of the bathing care device E according to the fifth embodiment includes a backrest portion 4 and a seat portion 5 as in the above embodiments. The backrest portion 4 includes an upper backrest portion 41, a lower backrest portion 42, and a rotating shaft 43 that rotatably connects the upper backrest portion 41 and the lower backrest portion 42. The seat portion 5 is integrally provided at the lower portion of the lower backrest portion 42.

  In this embodiment, since the mechanism of the vertical movement of the chair 3f is different from each said embodiment, this point is demonstrated. That is, in this embodiment. A plate-shaped moving member 320 is provided so as to be movable up and down with respect to the casing 310, and a chair 3 f is attached to the moving member 320. This point will be described in detail.

  First, as shown in FIG. 21, the front surface 311 of the casing 310 is an inclined surface, and is formed to extend forward as it goes downward. As shown in FIG. 22, plate-like brackets 312 extending in the vertical direction are provided on both sides of the front surface 311 of the casing 310, and the rollers 313 rotate at the upper and lower ends of each bracket 312. It is attached as possible. Specifically, two left and right shafts 314 are provided on the left and right outer surfaces of each bracket 312, and a roller 313 is rotatably attached to each of these shafts 314.

  On the other hand, the moving member 320 includes a main body portion 321 formed in a rectangular plate shape, and a pair of L-shaped guide portions 322 attached integrally to both side edges of the main body portion 321. The roller 313 described above is engaged with a groove formed between the main body portion 321 and the guide portion 322. Accordingly, the moving member 320 can move up and down with the roller 313 as a guide. Although not shown, a rack extending in the vertical direction is attached to the surface of the main body portion 321 facing the casing 310, and a pinion provided in the casing 310 is also omitted from the rack. Are engaged. The pinion is rotationally driven by the chair lifting motor described above, and the moving member 320 is moved up and down together with the chair 3f by the rotation of the pinion. At this time, since the front surface 311 of the casing 310 is an inclined surface, the moving member 320 moves up and down in an oblique direction along the inclined surface. That is, when descending, the moving member 320 and the chair 3f move slightly forward.

  In the present embodiment, of the backrest portion 4, the back surface of the upper backrest portion 41 is fixed to the front surface of the moving member 320, and the back surface of the lower backrest portion 42 is in contact with the front surface of the moving member 320. Yes. Therefore, the lower backrest part 42 is disposed so as to be inclined with the moving member 320 together with the upper backrest part 41. In addition, the lower backrest portion 42 rotates forward with respect to the upper backrest portion 41, but is in contact with the moving member 320, and thus rearward rotation is restricted.

  By the way, in each said embodiment, rotation centering on the rotating shaft 43 of the lower backrest part 42 arises when the leg drive mechanism 8 raises / lowers the belt support bar 63. As shown in FIG. However, in the bathing care apparatus E according to the present embodiment, the rotation of the lower backrest 42 is caused by the contact between the chair 3 f and the bottom surface 9 a of the bathtub 9. That is, when the moving member descends and the seat portion 5 is pressed against the bottom surface 9 a of the bathtub 9, the lower backrest portion 42 rotates upward with respect to the upper backrest portion 41 together with the seat portion 5 due to the reaction force. Move. On the other hand, when the moving member 320 rises, the lower backrest portion 42 together with the seat portion 5 rotates downward with respect to the upper backrest portion 41 as the seat portion 5 moves away from the bottom surface 9 a of the bathtub 9.

  Specifically, it is as follows. First, as shown to (a) of FIG. 21, the chair raising / lowering motor is driven and the chair 3f is lowered | hung until the back surface of the seat part 5 contacts the bottom face 9a of the bathtub 9. FIG. Then, as shown in FIG. 21B, the chair 3f is further lowered. As a result, the seat portion 5 is pressed against the bottom surface 9a of the bathtub 9 to receive a reaction force, and the lower backrest portion 42 and the seat portion 5 are separated from the moving member 320 and rotated as shown in FIG. It rotates so as to be bent with respect to the upper backrest 41 around the shaft 43. And if the chair 3f is further lowered | hung, while the lower backrest part 42 and the seat part 5 will rotate further, the seat part 5 will move ahead so that the bottom face 9a of the bathtub 9 may slide. Thereby, it becomes a bathing posture in which the body of the cared person M sitting on the chair 3f sleeps a little, and all or most of the body of the cared person M can be immersed in the hot water in the bathtub 9.

  On the contrary, when the chair 3f is raised in the order of FIG. 21B to FIG. 21A, the lower backrest portion 42 and the seat portion 5 rotate downward with respect to the upper backrest portion 41. . Then, when the lower backrest part 42 is rotated until it comes into contact with the moving member, after that, the upper backrest part 41 and the lower backrest part 42 exceed the upper frame 91 of the bathtub while being substantially along the inclined surface. Ascend to position.

  In addition, the bathing care apparatus E shown in FIG. 21 can be variously modified. For example, in order to make the seat portion slip easily at the bottom of the bathtub 9, a material with less friction can be disposed. Or it can deform | transform as shown in FIG. FIG. 23 is a side view showing a modification of FIG. 21, FIG. 23 (a) is a side view when the chair is in contact with the bottom of the bathtub in the bathing care apparatus, and FIG. It is a side view in case the chair further inclines with respect to a casing from the state of 23 (a).

  As shown in FIG. 23, the bathing care apparatus E is provided at the tip of the seat portion 5 in addition to the configuration of FIG. 21, and extends downward to a roller support portion 51 and a lower end portion of the roller support portion 51. And a roller 52 attached to the.

  As shown in FIG. 23A, when the chair 3f is lowered and the roller 52 comes into contact with the bottom surface 9a of the bathtub 9, and when the chair 3f is further lowered, the roller 52 is pressed against the bottom surface 9a of the bathtub 9. Upon receiving the reaction force, as shown in FIG. 23B, the lower backrest portion 42 and the seat portion 5 rotate upward with respect to the upper backrest portion 41 around the rotation shaft 43. With such a configuration, the seat 5 can easily slide on the bottom surface 9 a of the bathtub 9, and the lower backrest 42 and the seat 5 can be smoothly rotated with respect to the upper backrest 41.

(2) Features In the bathing care apparatus E, the lower backrest part 42 and the seat part 5 rotate upwardly about the rotation shaft 43 as the seat part 5 slides on the bottom surface 9 a of the bathtub 9. Therefore, the upper surface of most of the lower backrest part 42 and the seat part 5 can be brought close to a direction along the horizontal direction parallel to the bottom surface 9 a of the bathtub 9 with a simple configuration of the rotation shaft 43. Further, since the chair 3f can be further lowered from the position where the lower surface of the seat portion 5 is in contact with the bottom surface 9a of the bathtub 9, all or most of the body of the cared person M can be sufficiently stored in the hot water in the bathtub 9. Can be soaked.

<6. Modification>
As mentioned above, although embodiment of this invention was described, this invention is not limited to said each embodiment, A various change is possible unless it deviates from the meaning. For example, the following changes can be made. Moreover, the gist of the following modifications can be combined as appropriate.

<6-1>
In the above embodiment, the backrest portion 4 is composed of two members, an upper backrest portion 41 and a lower backrest portion 42. However, the backrest part 4 may be formed integrally.

  Below, the structure of the bathing care apparatus F which concerns on this modification is demonstrated using FIG. FIG. 24 is a bathing care apparatus according to a modification of the present invention, and FIG. 24A is a side view of the bathing care apparatus according to the modification when the chair is in contact with the bottom of the bathtub. (B) is a side view in case the chair further inclines with respect to a casing from the state of (a). In the bathing care apparatus F according to this modification, the chair 3g is integrally formed, and the entire chair 3g is inclined with respect to the moving member 320. Constituent parts similar to those of the first embodiment are denoted by the same reference numerals, and hereinafter, different parts from the bathing care apparatus A of the first embodiment will be mainly described. In FIG. 24, the foot placement unit and the arm placement unit are omitted.

  As shown in FIG. 24, the backrest part 4 of the chair 3g of the bathing care apparatus F is not separated into an upper backrest part and a lower backrest part, and is integrally formed including the seat part 5. Yes.

  A rotation shaft 45 extending in the left-right direction is provided on the back surface of the upper portion of the backrest portion 4, and the backrest portion 4 is fixed to the moving member 320 via the rotation shaft 45. Accordingly, in the chair 3g, the entire chair 3g including the backrest portion 4 can be rotated upward by the rotation shaft 45 from a state in which the back surface of the backrest portion 4 is in contact with the moving member 320.

  With this configuration, the operation is as follows. As shown in FIG. 24 (a), the chair 3 g is lowered in the bathtub 9 until the seat 5 comes into contact with the bottom surface 9 a of the bathtub 9. When the moving member 320 is further lowered from this state, the seat portion 5 is pressed from the bottom surface 9a of the bathtub 9, and the entire chair 3g rotates upward. As a result, the angle formed by the moving member 320 and the backrest part 4 of the chair 3g is larger than the reference inclination angle by the angle θ, and the posture of the cared person M sitting on the chair 3g is in the vertical direction. The bathing posture is like sleeping a little from the direction along. By immersing the cared person M in the bathtub 9 in such a bathing posture, even if the water surface of the bathtub 9 is low, all or most of the body of the cared person M is immersed in the hot water in the bathtub 9. be able to.

<6-2>
In the said embodiment, it does not mention whether the raising / lowering chair unit 1 is integral or separable with the rail unit 2. FIG. However, the lift chair unit 1 may be detachable from the rail unit 2. For example, the fixed rail part 2a and the slide support part 2b are separable, and the raising / lowering chair unit 1 is being fixed to the slide support part 2b. Thereby, the raising / lowering chair unit 1 supported by the slide support part 2b is isolate | separated from the fixed rail part 2a, for example, it can move to the bed where the care receiver M is sleeping. Further, since the chair 3a and the bed can be adjusted to a height at which each care receiver M can move by the lifting device 3b provided in the lifting chair unit 1, a separate lifting mechanism is not required for the bed.

<6-3>
Moreover, in the said embodiment, although the chair raising / lowering motor of the raising / lowering apparatus 3b is rotated forward / reversely, the chair 3a is raised / lowered, However, It is not limited to this. For example, the pinion gear may be rotated forward and backward by switching the clutch. In addition, the chair may be raised and lowered using, for example, a manual or automatic hydraulic jack.

<6-4>
In the above embodiment, the use position and the retracted position can be selected by rotating the armrest 7 about the rotation shaft 43. However, the use position and the retracted position may be selectable by sliding the armrest body 71 in parallel in the vertical direction.

<6-5>
In the above embodiment, the lower backrest portion 42 and the seat portion 5 are integrally formed, and the angle formed between the upper surface of the lower backrest portion 42 and the upper surface of the seat portion 5 is always constant, but is not limited thereto. For example, the angle formed by the lower backrest part 42 and the seat part 5 may be adjusted according to the degree of injury and the body shape of the cared person M who uses this apparatus.
<6-6>
In the above embodiment, the backrest portion 4 is composed of two members, that is, the upper backrest portion 41 and the lower backrest portion 42. However, the lower backrest part 42 may be composed of a plurality of divided members, and the divided members may be sequentially connected to each other via the respective rotation shafts. Thereby, the crossing angle of the upper surface can be varied for each divided member, and the upper surface of the lower backrest portion 42 can be curved as a whole.

<6-7>
In the said embodiment, the raising / lowering chair unit 1 is slid to the horizontal direction, and the raising / lowering chair unit 1 is moved to the bathtub 9 side from the washroom floor WF. However, the chair 3a may be suspended by a suspension device and moved from the wash floor WF to the bathtub 9 side. Further, the chair 3 a suspended by the arm may be lowered from the outside of the bathtub 9 into the bathtub 9.

<6-8>
In the above-described embodiment, the slide support portion 2b rotates and moves the washroom floor WF when the movable rail portion 22a moves along the fixed rail portion 2a and the lifting / lowering chair unit 1 including the casing 31 and the chair 3a moves. Wheel 24 to be included. However, as long as the movable rail portion 22a slides along the fixed rail portion 2a, the lift chair unit 1 may be movable, and the wheels 24 are not essential.
<6-9>
In the said embodiment, the hanger part raising / lowering motor for rotating the lower backrest part 42, and the chair raising / lowering motor which drives the raising / lowering apparatus 3b and raises / lowers the chair 3a are provided separately. However, the hanger part lifting motor and the chair lifting motor may be an integral drive motor. That is, the drive motor is shared by a plurality of mechanisms. Thereby, compared with the case where a drive part is provided in each mechanism, the space provided in the bathing care apparatus for the drive part can be reduced, and the cost can be reduced.

<6-10>
In the fifth embodiment, the lower backrest portion 42 is configured to rotate with respect to the upper backrest portion 41 by the reaction force from the bottom surface of the bathtub, that is, the force that the seat portion receives from below. You may make it rotate with force. For example, a protrusion such as a step may be provided in the bathtub 9, and the lower backrest 42 may be rotated by being pressed from behind by the protrusion as the chair descends.

Specific examples and comparative examples of the present invention will be described below with reference to FIGS. 25 and 26. FIG. FIG. 25 is a diagram illustrating a bathing state of the example. FIG. 26 is a diagram illustrating a bathing state of the comparative example.
(Example)
FIG. 25 shows a bathing state when the bathing care apparatus A of the first embodiment is set in the bathtub 9 having a longitudinal dimension of 1200 mm (substantially 1197 mm).
First, the cared person M is seated on the chair 3a of the bathing care apparatus A of the present invention. Thereafter, the lower backrest portion 42 is moved to the rotation shaft 43 so that the angle between the upper surface of the upper backrest portion 41 passing through the rotation shaft 43 and the upper surface of the lower backrest portion 42 passing through the rotation shaft 43 is about 22 degrees. It rotates as a center and moves to the front side of the seat portion 5. Next, the chair 3 a is lowered into the bathtub 9 and the cared person M is immersed in the bathtub 9. At this time, the folding angle between the spine and the femur near the hip bone of the cared person M sitting on the chair 3a was about 78 degrees. Further, the height from the bottom of the bathtub 9 to the nipple of the care recipient M was about 437 mm.

(Comparative example)
In the bathing care apparatus X of the comparative example of FIG. 26, the backrest portion 4x is not divided into an upper backrest portion and a lower backrest portion. The upper end of the backrest part 4x is rotatably attached to the member on the back surface of the backrest part 4x by the rotation shaft 47 at the upper end of the chair 3x. Therefore, in FIG. 26 of the comparative example, the entire backrest portion 4x and the seat portion 5 of the chair 3x rotate around the rotation shaft 47 and tilt forward. As shown in FIG. 26, in this bathing care apparatus X, the chair 3x is rotated about the rotation axis 47 so that the angle of the backrest 4x before and after the rotation is about 5 degrees around the rotation axis 47. Let In this state, the chair 3x is lowered and the cared person M is immersed in the bathtub 9. At this time, the folding angle between the spine and the femur near the hip bone of the cared person M sitting on the chair 3x was about 66 degrees. Moreover, the height from the bottom of the bathtub 9 to the nipple of the care recipient M was about 500 mm.

  When the bathing care apparatus A of the present invention is used, the lower backrest 42 is rotated with respect to the upper backrest 41 while the upper backrest 41 is fixed. By doing in this way, as shown in the said Example, even if the bathing care apparatus A of this invention is installed in the small bathtub 9, the care receiver M seated on the chair does not fold the femur greatly. You can bathe in an easy posture. In addition, the body of the cared person M can be deeply immersed in the bathtub 9.

  On the other hand, in the bathing care apparatus X of the comparative example, the entire backrest portion is configured to rotate. In this case, as shown in the comparative example, the cared person M must greatly fold the femur and bathe in a cramped posture. Moreover, in the case of the bathing care apparatus X of the comparative example, if the backrest part 4 is rotated so as to sleep greatly, the body approaches the sleeping position, but the foot in front of the seat part 5 hits the wall of the bathtub, and the chair 3x cannot be lowered.

1: Lifting chair unit 2: Rail unit 2a: Fixed rail portion 2b: Slide support portions 3a, 3c-3g: Chair 3b: Lifting device (lifting mechanism)
3x: Chair 4: Backrest 5: Seat 6a: Foot placement unit 6b: Foot placement unit 7: Arm placement unit 8: Foot drive mechanism (foot drive)
9: Bath 21: Rail body 21a: Slide roller 22: Slide support body 22a: Movable rail 31: Casing (apparatus body)
33: Trapezoidal screw 41: Upper backrest part 42: Lower backrest part 43: Rotating shaft (rotating mechanism)
44: Chair support member 45: Inclination shaft 46: Rotating auxiliary member 47: Rotating shaft 48: Back projection 51: Roller support portion 52: Roller 60: Foot rotation shaft 61: Foot support portion 62: Foot placement portion 63: Belt support bar 64: Lower arm (first arm)
65: Upper arm (second arm)
81: Hanger part 82: Belt 83: Pulling wires A to F: Bathing care device BR: Bathroom M: Care recipient W: Bathroom wall surface WF: Washing floor X: Bathing care device θ: Angle

Claims (12)

A bathing care device for assisting the user in bathing,
An apparatus main body attached to the bathtub;
An elevating mechanism provided in the apparatus body;
A chair that moves up and down with respect to the apparatus main body by the elevating mechanism and can be placed in a bathtub,
With
The chair includes a backrest and a seat connected to a lower end of the backrest,
In the chair, the bathing care device is configured such that at least a portion including the seat portion can be inclined with respect to the device body when receiving a force from below or behind the seat portion. The backrest portion includes an upper backrest portion and a lower backrest portion rotatably connected to the lower portion of the upper backrest portion,
The bathing care apparatus according to claim 1, wherein the lower backrest part is configured to be inclined with respect to the apparatus main body together with the seat part with respect to the upper backrest part.   When the chair is lowered by the elevating mechanism from a state where the chair is in contact with the bottom surface of the bathtub, at least a portion including the seat portion is formed on the bottom surface of the bathtub due to a force received from the bottom surface of the bathtub. The bathing care apparatus according to claim 1, wherein the bathing care apparatus is slid along and tilted away from the apparatus main body.   The bathing care apparatus according to claim 3, wherein the chair further includes a roller that can come into contact with the bottom surface of the bathtub on the lower surface side of the seat portion.   The bathing care apparatus according to claim 2, wherein the lower backrest part and the seat part are rotatable so as to overlap the upper backrest part. A foot placement section for the user to place a foot;
The bathing care apparatus according to any one of claims 1 to 5, further comprising a support arm that supports the footrest portion with respect to the chair.   The support arm is selectively placed in a bathing posture position that brings the footrest portion close to the seat portion, and a chair seating posture position that is farther from the seat portion than the bathing posture position. The bathing care apparatus according to claim 6, wherein the bathing care apparatus is configured to be arranged.   The bathing care apparatus according to claim 7, further comprising a drive mechanism that drives the support arm so that the footrest portion moves between the bathing posture position and the chair sitting posture position. The drive mechanism includes a linear member connected to the support arm,
The bathing care apparatus according to claim 8, configured to displace the footrest from the chair sitting position to the bathing position by pulling the linear member.   The portion including at least the seat portion is configured to be tiltable with respect to the apparatus main body by further pulling the linear member from the state where the foot placement portion is in the bathing posture position. 9. Bathing care apparatus according to 9. The chair further includes armrests arranged on both sides of the seat portion in the width direction,
The bathing care apparatus according to claim 9 or 10, wherein the linear member is disposed along the armrest. A rail unit for supporting the apparatus main body;
The rail unit is
A fixed rail portion supported by the tub of the bathtub;
The apparatus main body is supported together with the chair, and by sliding along the fixed rail portion, there is a slide support portion that can select a bathing position where the chair faces the inside of the bathtub and a transfer position outside the bathtub. And
The slide support is
A slide support body that is slidable on the fixed rail, and
A support leg for supporting the slide support body on the floor surface of the washing area adjacent to the bathtub;
A wheel that is attached to the lower end of the support leg and rolls on the floor surface of the washroom as the slide support body slides.
The bathing care apparatus according to claim 1, comprising: