JP2001017507A - Auxiliary device for bath care - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the subject device inexpensive, easy to operate and durable by providing an elastic means to produce an urging force to rotate a link upward through a rod, namely to support the weight of a bather so that the urging force may act on the other end of the rod. SOLUTION: When a transport seat is lowered, it is pulled up by a lower support, a horizontal link, a bell crank and a longitudinal crank. In addition, in accordance with an ascending or descending position, the angle of linking action between a coil spring 29 and a shaft 27 displaces, namely, the angle formed by the direction of action of the elastic force of the coil spring 29 and the direction of extension of a rod 31 and the angle formed by the direction of extension of the rod 31 and the direction of extension of a lever 28 and the elastic force of the coil spring 29 change, whereby when the transport seat lowers sufficiently and dips into a bath, the moment of the coil spring 29 acting through the rod 31 and the lever 28 decreases in accordance with the size of float acting on the transport seat and maintains a bather in a state of soaking in a bath.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathing care assisting device, and more particularly, to a bathing care assisting device for moving a bather up and down to take a bath in a bathtub.

[0002]

2. Description of the Related Art Conventionally, in a bathing care assisting device, as a mechanism for raising and lowering a bather between a bathtub and above a bathtub, a trapezoidal screw mechanism is used, and a seat is raised and lowered by turning a manual handle. The one using a hydraulic cylinder as the driving force source or the one using an electric motor as the driving force source for the elevating mechanism is commercially available.

[0003]

However, when a trapezoidal screw mechanism is used as the elevating mechanism, there is a problem that it is necessary to turn the manual handle many times to elevate the seat.

[0004] When a hydraulic cylinder is used as the driving force source of the elevating mechanism, there is a problem that the cost is increased and the apparatus is complicated.

In addition, when an electric motor is used as a driving force source for the lifting mechanism, the cost increases, and the electric appliance is used in an atmosphere of high humidity and water, which may cause problems in safety and durability. There is.

[0006] It is an object of the present invention to make it easy to operate at low cost,
An object of the present invention is to provide a bathing care assistance device having high durability.

[0007]

According to the present invention, there is provided a bathing care assistance device comprising: a column capable of holding a seat on which a bather sits;
A link connected to the support so that the support moves basically in parallel, a link for raising and lowering the seat held by the support together with the bather between the inside of the bathtub and the upper part of the bathtub, and a shaft that rotates integrally with the link, A lever that rotates integrally with the shaft,
The lever is provided with a rod pivoted at one end, and a biasing force is applied to the other end of the rod, through which the link is pivoted upward, that is, to support the weight of the bather. An elastic means for generating an acting biasing force;
Having.

According to this bathing care assisting device, elastic means (for example, a coil spring) is used as a power source for supporting the weight of a bather. Thereby, the configuration of the bathing care assistance device can be simplified. Further, the cost of the device can be reduced, and the safety and durability in use of the device are further improved. Further, at an arbitrary lifting position, the sum of the moment due to the elastic means applied to one end of the link, the moment mainly applied to the other end of the link due to the weight of the bather, and the moment due to buoyancy acting in the opposite direction to this moment. The levers, rods and resilient means can be arranged relative to each other. Therefore, the bather can be raised or lowered or moved with a small manual operation force, and can be bathed in hot water.

In particular, according to the present invention, when a bather seated on a seat is immersed in hot water due to a displacement of a link operating angle between the elastic means and the shaft, a moment generated by buoyancy acting on the seat is generated. Imbalance can be suppressed. As a result, the phenomenon that the bather floats on the surface of the bath is prevented, the bather stays in the bath, and the operation force required of the caregiver is stabilized throughout the entire process. Is improved.

Another object of the present invention is to provide a bogie for carrying a seat and transferring the seat to a counterpart, a movable leg capable of supporting the seat so as to be detachable and capable of moving up and down, and a moving leg for moving the bogie. Provided is a bogie having a handle that is a handle and is pivotable with respect to a bogie base by operation, and a mechanism that couples the handle and the movable leg so that the movable leg moves up and down in accordance with the pivotal operation of the handle. . According to this cart, the seat is transferred from the cart to the support column by lowering the movable leg by pivoting the handle in a state where the seat is supported by the support column of the bathing care assistance device. Can be.

[0011] Other aspects and features of the present invention are as described in each claim, and the duplicate description will be omitted with reference to the claims. Thus, the features of each claim are deemed to be as set forth herein.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described.

In a preferred embodiment of the device according to the invention, the struts are divided into an upper strut and a lower strut, and the seat is lowered so that the bather can bathe in the bathtub with the legs slightly bent. Accordingly, a link is formed between the upper and lower supports and the main body so as to rotate the lower support that holds the seat.

In a preferred embodiment of the device according to the present invention, (a) the magnitude of the elastic force generated by the elastic means differs according to the rotational position of the shaft, that is, the position of the seat, and (b) the elastic force. The angle between the rod and the direction of the elastic force exerted by the means is different, and (c) the angle between the rod and the lever is different. By adjusting these elements (a) to (c), according to the buoyancy acting on the seat, the moment acting on the shaft by the elastic means on the shaft via the rod and the lever can be reduced. can do.

In a preferred embodiment of the device according to the present invention, the transfer seat is releasably engaged with a truck serving as a kind of wheelchair, and the transfer seat is transported from the carriage to the column side with the bather on. Then, it is locked on the column side.

In a preferred embodiment of the apparatus according to the present invention, a mechanism for moving or rotating the apparatus or the apparatus main body in a horizontal direction is used.

An apparatus according to a preferred embodiment of the present invention includes a cart for transporting a bather to a position near a bathtub while sitting on a seat. Further preferably, the bogie includes a movable leg capable of supporting a seat and raised and lowered by an operation, and operating means for pivotally operating to raise and lower the movable leg. In this embodiment, when the seat is transferred from the bogie side to the column side, the seat supported by the movable leg portion is delivered to the column side at the ascending position of the movable leg portion and held there, and the movable leg portion is operated. Is lowered to separate the movable leg from the seat held on the column side, and then the carriage is retracted.

In a preferred embodiment of the device according to the invention, the column is provided with a seat guide which can extend in the horizontal direction. In this embodiment, when the seat is transferred from the trolley side to the column side, the seat supported by the movable leg on the trolley side while the bather is seated extends horizontally. Delivered and supported on the guide,
Subsequently, the movable leg is lowered by operation to separate the movable leg from the seat supported on the seat guide.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the preferred embodiments of the present invention described above, an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a bathing care assistance device according to an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG.

[Overall Structure] Referring to FIGS. 1 to 3, a rail column 12 and a holding pipe 13 are installed in a bathroom. Upper and lower rails 17 and 18 are provided on the rail post 12.
Is attached. Upper and lower rails 17, 18
Extends between the wash basin and the location of the bathtub 90. The main body 1 is movably engaged with the upper and lower rails 17 and 18. On the other hand, the upper and lower columns 3, 5 extend in the vertical direction. A pair of parallel links 2 and 4 are connected between the main body 1 and the upper and lower supports 3 and 5 so that the main body 1 and the upper and lower supports 3 and 5 move basically in parallel. A transfer seat 15 is detachably engaged with a lower end of the lower support 5 via a seat guide 6. With the bather sitting on the transfer seat 15, the transfer seat 15 is horizontally moved and further moved up and down by the caregiver's operation, and the bather is bathed in the bathtub 90.

[Connecting Structure of Main Body and Prop] Here, the main body 1
The connection configuration between the upper and lower supports 3 and 4 will be described. Body 1
A pair of parallel links 2 and 4 are connected between the upper support 3 and the upper support 3 so that the two move in parallel. One end of each of the pair of parallel links 2 and 4 is pivotally supported with respect to the main body 1, and the other end is each pivotally supported by the upper column 3. One end of the horizontal link 8 is pivotally supported on the main body 1 above the one parallel link 2. A bell crank 7 is pivotally supported on the upper column 3 coaxially with the pivot of one of the parallel links 2. The other end of the horizontal link 8 is pivotally supported at one end of the bell crank 7,
One end of a vertical link 9 extending along the upper column 3 is pivotally supported at the other end of the bell crank 7. Upper column 3 of lower column 5
In the vicinity of the pivot, a projection is formed on the opposite side of the main body 1 with the upper and lower columns 3 and 5 interposed therebetween. The other end of the vertical link 9 is pivotally supported by this projection.

[Main Body] Here, the main body 1 will be described. FIG. 4 is a front view showing the inside of the main body, FIG.
6A and 6B are partially omitted side views of the inside of the main body.

[Horizontal Operation Mechanism] Referring particularly to FIGS. 4 and 5, an upper roller mechanism 20 is provided on the upper portion of the main body 1 so as to be able to run on the upper rail 17 and engage therewith. The lower part of the main body 1 is provided with a lower roller mechanism 21 which is engaged with one of the lower rails 18 so as to be able to run on the lower rail 18. The upper and lower roller mechanisms 20 and 21 each have a roller 22 that is supported by the main body 1 via a roller shaft 23 and engages with the upper rail 17 or the lower rail 18.

Referring particularly to FIG. 4, a brake mechanism is provided on the upper part of the main body 1. In this brake mechanism, one end of a brake arm 44 is pivotally supported on the upper part of the main body 1 via a pin 46, and a brake pad 45 is attached to the other end of the brake arm 44. A brake spring 47 is interposed between the brake arm 44 and a spring seat nut 48 (position adjustable) screwed to the main body 1. By the urging force of the brake spring 47, the brake pad 45 normally comes into sliding contact with the lower surface of the upper parallel rail 17, thereby stopping the horizontal movement of the main body 1. Further, one end of a travel brake wire 52 is connected to the brake pad 45, and a grip lever 53 is connected to the other end of the travel brake wire 52. The grip lever 53 is covered by a cover 11 attached to a side surface of the main body 1. Caregiver grip lever 5
By gripping 3, the travel brake wire 52 is pulled, whereby the brake pad 45 is separated from the upper parallel rail, and the main body 1 can travel in the horizontal direction.

[Connecting Structure of Main Body and Parallel Link] Referring particularly to FIG. 4, a shaft 27 extending in the horizontal direction passes through the left and right sides of the main body 1 in FIG.
It is pivotally supported with respect to the main body 1 via 5, 26. This shaft 27 becomes the pivot of one parallel link 2 and the entire parallel link mechanism. One parallel link 2 is fixed to one end of the shaft 27 via a boss 25 so as to rotate integrally with the shaft 27. 4, a horizontal link 8 is pivotally supported above the shaft 27, and the other parallel link 4 is pivotally supported below the shaft 27. At the right side of the main body 1 in FIG.
One end of the lifting handle 10 is releasably engaged with the other end (see FIG. 2).

[Elevation Lock Mechanism] Referring particularly to FIGS. 4 and 5, at one end of the shaft 27, inside one of the parallel links 2, a fan-shaped lock plate 43 is mounted so as to rotate integrally with the shaft 27. Have been. The lock plate 43 has a plurality of holes formed at predetermined positions along the rotation direction. The positions where the plurality of holes are formed correspond to, for example, the washing place, the height above the bathtub 90, and the height inside the bathtub 90.

On the other hand, locking brackets 40, 40 are fixed to the main body 1 on the left side in FIG. A lock lever 41 is pivotally supported between the lock brackets 40,40. A lock plate 43 is provided at one end of the lock lever 41.
And a pin engageable with the plurality of holes. The lock lever 41 is urged toward the lock plate 43 by a spring provided on the main body 1 side such that the engagement between the pin and the hole is maintained. One end of a lifting brake wire 51 is connected to the other end of the lock lever 41.
The other end of the lifting brake wire 51 is connected to a lifting lock lever 54.
(See FIG. 7A). Lifting handle 1
When the elevating lock lever 54 on the zero is not operated, the pin of the lock lever 41 is fitted in any one of the plurality of holes of the lock plate 43, and the rotation of the shaft 27 is prevented. In this fitted state, the transfer seat 15 is locked in the vertical direction at any one of a plurality of predetermined positions, for example, at a washing place, above the bathtub 90, or inside the bathtub 90. On the other hand, while the lifting lock lever 54 is being released, the fitting is released, and the rotation of the shaft 27 is allowed. In this state, the transfer seat 15 can be moved up and down.

[Structure Inside the Main Body] In particular, FIGS.
Referring to FIG. 6A and FIG. 6B, a pair of levers 28 and 2 are provided at an intermediate portion of the shaft 27 in the main body 1.
One end of 8 is fixed so as to rotate integrally with the shaft 27. A pin 3 is provided inside the other end of the pair of levers 28, 28.
A pair of rods 30, 30 are pivotally supported via 1, 31. A spacer 32 is arranged between the pair of rods 30. A pair of plates 35, 35 having a pair of guide grooves 35a, 35a extending in the vertical direction are formed in the lower portion inside the main body 1. A pair of rods 30, 3
A guide pin (trunnion) 34 is attached between the other ends of the “0”. The guide pin 34 has a pair of guide grooves 35.
a, 35a. Thereby, the shaft 2
With the rotation of 7, that is, the rotation of the pair of levers 28, 28, the pair of rods 30, 30 swing and slide in the vertical direction.

In the middle part of the main body 1, a lever 28,
28, one spring receiving plate 91 extending in the horizontal direction is fixed. On the other hand, the guide pin 34
The female thread groove which penetrates its axis in the radial direction is formed in the middle part of the. In the female screw groove, a male screw rod 36 is provided.
Are screwed so as to be position-adjustable. The other spring receiving plate 33 is supported or connected to one end of the male screw rod 36. A coil spring 29 is interposed between one spring receiving plate 91 fixed to the main body 1 and the other spring receiving plate 33 connected to the pair of rods 30, 30. ing.

On one spring receiving plate 91, a pair of triangular plates 92, 92 extending in the vertical direction is provided.
Is fixed. A pair of damper mounting plates 93, 93 are fixed inside the pair of triangular plates 92, 92. Similarly, another pair of damper mounting plates 39 and 39 are fixed to the other spring receiving plate 33. Then, the pair of damper mounting plates 93, 93
A damper 37 is connected (pivotally supported) between the pair of damper mounting plates 39 and 39. As a result, the damper 37 is functionally connected between the main body 1 and the pair of rods 30, 30. The damper 37 has a function of preventing the transfer seat 15 on which the bather is seated from suddenly lifting because the elasticity of the coil spring 29 is greater during operation of the bathing assistance device. The operating speed is controlled by the damper 37.

[Elevation Handle] FIG. 7A is a plan view of the elevation handle, and FIG. 7B is a side view of the elevation handle. 7A and 7B, the shaft 2
A fixed boss 101 is fixed to the other end of 7. One end of the lifting handle 10 is loosely fitted to the fixed boss 101 via the handle support 102 so as to be engageable. An intermediate portion of a lever 108 is pivotally supported at one end of the lifting handle 10 via a pin 110. One end of the lever 108 is a grip portion, and the other end of the lever 108 is provided with a pin 107 extending along the axial direction of the shaft 27.
The tip of the pin 107 can be fitted through the through hole of the fixed boss 101 through the handle support 102. By this fitting, the elevating handle 10 and the shaft 27 are connected and can be integrally rotated. A compression spring 109 is compressionly interposed between the lever 108 and the handle support 102, and constantly urges the lever 108 so that the above-mentioned fitted state is maintained. Referring to FIG.
By pushing the lever 108 while the pin at the tip of the lock lever 41 is fitted into the hole, the lifting handle 10 and the shaft 27 can be relatively rotated, and the lifting handle 10 can be returned to the horizontal position.

At the intermediate portion of the lifting handle 10, the above-mentioned lifting lock lever 54 is connected via a bracket 54a.
The middle part of is pivoted. The other end of the lifting brake wire 51 is connected to one end of the lifting lock lever 54. The other end of the lifting lock lever 54 is a grip.

[Structure near Lower Support Pillar] FIG. 8A is a side view for explaining the structure of the lower support lower part, and FIG. 8B is a front view of the same structure. FIG. 9 is a partially enlarged side view for explaining the structure of the connecting portion between the bogie and the seat, and FIG. 10 is a partially omitted rear view of the seat.

8 (A) and 8 (B), a bearing 57 is formed at the other end of the lower support 5, and the seat guide 6 is pivotally supported on the bearing 57 via a pin. ing. Further, one end of a support arm 55 is pivotally supported via a pin 56 near the pivot point of the seat guide 6. The other end of the support arm 55 is slidably provided in the lower support 5. The other end of the support arm 55 is brought into contact with and locked by a stopper 5 a provided in the lower support 5, thereby defining the maximum opening of the seat guide 6.

The seat guide 6 has a pair of left and right frame portions 6a and 6b (see FIG. 2). The horizontal distance between the pair of left and right frame portions 6a and 6b is formed corresponding to the left and right width of the transfer seat 15, and the pair of left and right arm portions 6a and 6b is formed.
Can be fitted to a pair of guide grooves 15a, 15b (see FIG. 10) provided on the left and right sides under the transfer seat 15.

Referring particularly to FIGS. 9 and 10, a shaft 79 extends behind the transfer seat 15 along the front-back direction of the seat. One end of the shaft 79 is a bearing 8
The other end is supported by a bearing 81 with respect to the transfer seat 15. The handle 66 is attached to one end of the shaft 79.
Is attached. A cam plate 82 is fixed to the other end of the shaft 79. One ends of seat locking rods 83, 83 extending on both left and right sides of the transfer seat 15 are pivotally supported at corners of the cam plate 82 facing each other. One ends of lock pins 78, 78 are pivotally supported at the other ends of the seat locking rods 83, 83, respectively. Lock pin 7
The other ends of 8, 78 are guided by bearings formed on the transfer seat 15, respectively. Left and right frame part 6 of seat guide 6
a, 6b are engaged with the guide grooves 15a, 15b,
By rotating the handle 66, the lock pin 7
The lock pins 78, 78 are recessed into or below the guide grooves 15a, 15b, and the lock pins 78, 78 and the guide grooves 15a, 15b.
Left and right frame portions 6a and 6b are sandwiched between the lower surfaces. Thus, the movement of the transfer seat 15 with respect to the seat guide 6 is prevented.

[Bogie as a Kind of Wheelchair] Here, since the structure of the bogie is basically symmetrical, only the structure on one side will be mainly described.

Referring particularly to FIG. 9, a pipe lever 62 is pivotally supported below the frame (base) 60 of the carriage 14. The lower end of the push handle 16 can be inserted into and removed from the pipe lever 62. Therefore, the bather can be seated on the transfer seat 15 on the carriage 14 with the push handle 16 removed. The push handle 16 can be attached to either the front or rear side of the carriage 14. A lock lever 63 (see FIG. 1) is pivotally supported by the pipe lever 62. The lock lever 63 is releasably engaged with a pin on the frame 60, and the rotation of the push handle 16 is locked by this engagement.

Referring particularly to FIGS. 1 and 9, one end of a rod 74 extending from the front to the back in the carriage 14 is pivotally supported on the outer periphery of the pipe lever 62. One end of a lever 72 is pivotally supported at the other end of the rod 74. On the other hand, a connecting shaft 70 is supported by a triangular plate formed on the lower side of the upper part of the frame 60 of the carriage 14. The other end of the lever 72 is fixed on the end of the connecting shaft 70.

Inside the lever 72, the connecting shaft 70
One end of a pair of arms 68 is fixed on the upper side (see FIG. 13B). One end of an arm 69 is pivotally supported between the other ends of the pair of arms 68. Arm 6
The other end of 9 is pivotally attached to a movable leg 61a of a leg 61 on which the transfer seat 15 is placed and held. In the movable leg 61a,
The fixed leg 61b fixed to the frame 60 is fitted to guide the movable leg 61a up and down.

A seat lock lever 75 is pivotally supported above the movable leg 61a. By operating the handle 65 (see FIG. 9) and engaging the seat lock lever 75 with a pin formed on the side of the transfer seat 15, the transfer seat 1 is moved.
5 can be locked to the carriage 14.

[Explanation of Operation] Next, the operation of the bathing care assisting device described above will be described for a case where a bather is bathed in a bathtub. The reverse operation will be clarified by the following description of the case of taking a bath, and therefore the description is omitted.

FIGS. 11A and 11B are operation diagrams of the device shown in FIG. 1, FIG. 11A is a plan view, and FIG. 11B is a side view. FIG. 12 is an operation diagram subsequent to FIG. FIG. 13A is a partially enlarged side view of the vicinity of the connecting portion between the bogie and the seat shown in FIG. FIG.
(B) is a view on arrow BB of FIG. 13 (A). FIG. 14 is an operation diagram following FIG.

In particular, FIGS. 2, 11A and 11
With reference to (B), (1) the caregiver sits the bather on the transfer seat 15 held by the carriage 14 and transports the carriage 14 to the washing place beside the bathtub 90; (2) the caregiver Moves the trolley 14 in the direction a in FIG. 11B and stops the trolley 14 at a position where the transfer seat 15 can be transferred onto the seat guide 6.

In particular, referring to FIGS. 11 (A) and 11 (B) to FIG. 12, (3) the caregiver operates the handle 65 to release the seat lock lever 75 and the carriage of the transfer seat 15 (4) The caregiver releases the lock lever 63 and rotates the push handle 16 toward the front; (5) As a result, the rod 74, the lever 72, the arm 68, and the arm 69 are moved. The movable leg 61a of the leg 61 rotates
(See FIGS. 13A and 13B), the transfer seat 15 is transferred from the truck 14 to the seat guide 6 side, and the lower surfaces of the guide grooves 15a and 15b are left and right frame portions 6a and 6b. Supported on top. At this time, the coil spring 29 generates an assisting force that balances the weight of the bather,
The bather sitting on the transfer seat 15 held on the lower support 5 side is held at a predetermined balance position. In addition, seat guide 6
Cannot rise above the position shown in FIG.

In particular, referring to FIG. 12, (6) the caregiver rotates the handle 66 on the transfer seat 15 side to protrude the lock pins 78, 78 (see FIG. 10), and the seat guide 6 Left and right frame parts 6a, 6b
(See FIG. 11 (A)). (7) The caregiver retracts the cart 14 backward as shown in the direction b of FIG.

(8) The caregiver pushes the transfer seat 15 on which the bather is seated to the bathtub 90 side while holding the clip lever 53 (see FIG. 3), and moves the bather together with the main body 1 to the bathtub 9.
0 (see FIG. 2).

In particular, referring to FIG. 14, (9) Subsequently, the caregiver operates the lifting handle 10 to release the lock, and further rotates the lifting handle 10 downward to thereby transfer the transfer seat. The bather on 15 is lowered into hot water stretched in bathtub 90. During this time, damper 3
7 (see FIGS. 4 and 6 (A)) acts to slow down the sudden drop of the bather, so that the lowering operation is performed at an appropriate speed, thereby preventing the bather from being uncomfortable.

Here, when the transfer seat 15 is lowered, the lower support 5
The transfer seat 15 is tilted rearward by a predetermined angle by being pulled upward by the horizontal link 8, the bell crank 7 and the vertical link 9 so that the bather can take a bathtub with the legs bent. 90. As a result, the burden on the body of the bather is reduced, and the body becomes easier to wash.

In addition, the link operating angle between the coil spring 29 and the shaft 27 is displaced in accordance with the position of the transfer seat 15 being moved up and down, ie, the direction in which the elastic force of the coil spring 29 acts (axial direction) and the rod The angle formed by the extending direction of the rod 31, the angle formed by the extending direction of the rod 31 and the extending direction of the lever 28, and the elastic force of the coil spring 29 change (see FIGS. 6A and 6B). ). Thereby, the coil spring 29 is attached to the shaft 27 via the rod 31 and the lever 28 according to the magnitude of the buoyancy acting on the transfer seat 15 when the transfer seat 15 is sufficiently lowered and immersed in hot water. The resulting moment acting in the direction to raise the transfer seat 15 becomes smaller, and the bather stays in the bath. By considering the buoyancy in this way, the operating force required of the caregiver is as described in (1) to above.
It is stabilized through the process of (9).

[0052]

According to the present invention, there is provided a bathing care assisting device which is easy to operate at low cost and has high durability.

[Brief description of the drawings]

FIG. 1 is a side view of a bathing care device according to an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a partially omitted front view of FIG. 1;

FIG. 4 is a front view showing the inside of the main body shown in FIG. 1;

FIG. 5 is a side view of FIG. 4;

6 (A) and (B) are partially omitted side views showing the inside of the main body shown in FIG. 4;

FIG. 7A is a plan view of a lifting handle, and FIG. 7B is a side view of the lifting handle.

8A and 8B are views for explaining the structure of the lower portion of the lower support in the device shown in FIG. 1, wherein FIG. 8A is a side view and FIG. 8B is a front view.

FIG. 9 is a partially enlarged side view for explaining a structure of a connecting portion between a bogie and a seat in the apparatus shown in FIG. 1;

FIG. 10 is a partially omitted rear view of the seat shown in FIG. 9;

11 is an operation diagram of the device shown in FIG. 1, (A) is a plan view, and (B) is a side view.

FIG. 12 is an operation diagram following FIG. 11 (B).

13A is a partially enlarged side view of the vicinity of a connecting portion between the bogie and the seat shown in FIG. 12, and FIG. 13B is a BB view of FIG.
It is an arrow view.

FIG. 14 is an operation diagram following FIG. 12;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 One parallel link 3 Upper support 4 The other parallel link 5 Lower support 5a Stopper 6 Seat guide 6a, 6b Left and right frame part 7 Bell crank 8 Horizontal link 9 Vertical link 10 Lifting handle 11 Cover 12 Rail pillar 13 Holding pipe 14 Dolly (a kind of wheelchair) 15 Transfer seat 15a, 15b Guide groove 16 Hand push handle 17 Upper rail 18 Lower rail 20 Upper roller mechanism 21 Lower roller mechanism 22 Roller 23 Roller shaft 25, 26 Boss 27 Shaft 28 Lever 29 Coil spring 30 Rod 31 Pin 32 Spacer 33 The other spring receiving plate 34 Guide pin (Trunnion) 35 Plate 35a Guide groove 36 Male thread rod 37 Damper 39 Another pair of damper mounting plates 40 Locking bracket 41 Lock Bar 43 Lock plate 44 Brake arm 45 Brake pad 46 Pin 47 Brake spring 48 Spring seat nut 51 Elevating brake wire 52 Traveling brake wire 53 Clip lever 54 Elevating lock lever 54a Bracket 55 Support arm 56 Pin 57 Bearing 60 Bogie frame (base) 61 Seat Leg 61a Movable Leg 61b Fixed Leg 63 Lock Lever 65 Handle (for Locking between Dolly and Seat) 66 Handle (for Locking Between Main Body and Seat) 68 Arm 69 Arm 70 Connecting Shaft 72 Lever 74 Rod 75 Seat lock lever 78 Lock pin 79 Shaft 80 Bearing 82 Cam plate 83 Seat lock rod 90 Bathtub 91 One spring receiving plate 92 Triangular plate 93 A pair of damper mounting plates 101 Fixed boss 102 Handle support 107 Pin 108 Lever 109 Compression spring 110 Pin

Claims (6)

[Claims] A main body; a mechanism for horizontally moving the main body so as to move a bather between on and off the bathtub; a column capable of holding a seat on which the bather sits; A link connected between the struts so that the main body and the struts move in a basically parallel motion, and for raising and lowering the seat held by the struts together with the bather in the bathtub and above the bathtub; A shaft pivotally supported by the main body and integrally rotating with the link; a lever integrally rotating with the shaft; a rod having one end pivotally supported by the lever; the other end of the rod and the main body; And a resilient means for generating a moment acting to support the weight of the bather by rotating the link upward and supporting the weight of the bather. 2. A bell crank, comprising: an upper column and a lower column pivotally supported with each other; a bell crank pivotally supported coaxially with a pivot axis of the link pivoting integrally with the shaft with respect to the column; A vertical link pivotally supported between one end of the bell crank and the other end of the bell crank and the lower support, and the link is turned downward. The bathing care assistance device according to claim 1, wherein the seat is inclined by moving and the lower support pivots with respect to the upper support. 3. A movable leg which is provided on the column and can be extended in a horizontal direction, is capable of supporting the seat and is moved up and down by operation, and operating means for moving the movable leg up and down; In the ascending position of the movable leg, a seat supported by the movable leg is transferred to the seat guide extending horizontally in a state where a bather is seated. The bathing care assistance device according to claim 1 or 2, wherein the movable leg is lowered by an operation to separate the movable leg from the seat supported on the seat guide. 4. When the bather is bathed, the moment acting on the shaft by the elastic means in the direction of raising the seat on the shaft via at least the rod is small according to the buoyancy acting on the seat. The bathing care assistance device according to any one of claims 1 to 3, characterized in that: 5. A column that can hold a seat on which a bather sits, and a link that is pivotally supported by the column and pivots to move the seat held by the column up and down between the bathtub and above the bathtub. Resilient means provided to apply a moment to the pivot of the link, and generating a moment to support the weight of a bather seated on the seat held on the column via the pivot and the link. A bathing care assistance device characterized by the following. 6. A bogie for carrying a seat and delivering the seat to a counterpart, wherein the movable leg supports the seat in a detachable manner and can move up and down with respect to a base of the bogie. A fixed leg fixed to the base of the carriage, for guiding the movable leg up and down; a handle for moving the carriage, and a handle pivotable with respect to the base of the carriage by operation; And a mechanism for connecting the handle and the movable leg so that the movable leg moves up and down in response to the pivoting operation of the handle, wherein the seat is supported by the counterpart, A bogie characterized in that the seat is delivered from the bogie side to the counterpart side by pivoting a handle to lower the movable leg.