JP2001258959A - Standing up supporting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a standing up supporting device with which a user living on a Tatami (rush mat) can stand up by himself up to the position from which he can walk. SOLUTION: A driving mechanism 6 for moving a supporting surface 1 between a horizontal position P for supporting a user lying near the floor F and a standing position Q for supporting the user in a standing position from which he can walk is provided only on one side of the supporting surface 1 and the other side is left open in order that the user can easily transfer to the supporting surface 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rising assist device suitably used for assisting a user who has difficulty standing up by himself / herself to smoothly transition from a lying position to a standing position. Things.

[0002]

2. Description of the Related Art It is more difficult for an elderly person or a physically handicapped person to get up from a lying state to a walking state for a person with weak legs or a person who has difficulty putting his / her arms down than a normal person can imagine. That is what. For this reason, for example, a nursing bed has been conventionally used as a device for assisting an operation from a recumbent posture to a walking standing posture. Various types of such care beds have been devised so that the user can shift from a lying position lying down on the bed to a sitting position, and then drop down on the floor to shift to a standing position.

[0003]

By the way, such a nursing care bed is convenient for those who routinely lie on a bed. Using a nursing bed as described above is associated with mental and physical distress for tatami mats. Recently, a nursing care device has been considered for such a tatami living person, in which a back portion such as a tatami mat or a mattress laid on the floor is raised to raise the user from a lying position to a sitting position. However, in this case, the caregiver must assist the user in standing up from the sitting posture to the standing posture, and the physical burden on the caregiver is very large. That is, at present, there is almost no auxiliary device that enables a tatami resident to shift from the lying posture to the standing posture by himself.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a support surface for supporting a user is provided to solve the above-mentioned problems.
A drive mechanism for moving the support surface between a horizontal position for supporting the user in the lying state near the floor surface and an upright position for supporting the user in a walkable upright state, wherein the drive mechanism supports the drive mechanism. It is characterized in that it is provided only on one side of the surface.

In such a configuration, since the side of the support surface on which the drive mechanism is not provided is open, the support surface is laid on a tatami or floor next to the open side. By doing so, it is relatively easy for the user to move from the state lying on the futon to the support surface in the horizontal position. When the drive mechanism is actuated, the support surface is driven by the drive mechanism and automatically moves to the standing position where the user can walk, so that the user does not have to care for the caregiver. It is possible to easily take the posture of walking on its own.

[0006]

An embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, as shown in FIGS.
A support surface 1 for supporting the user, and a drive mechanism 6 for moving the support surface 1 from a horizontal position P where the support surface 1 is held substantially horizontally near the floor surface F to an upright position Q for supporting the user in a walkable state.
This is a rising assist device A comprising:

[0008] The support surface 1 is composed of four support plates, each of which has a substantially rectangular shape in plan view, for supporting each part of the user's body. Each support plate includes a head 11 that supports the user's head, a back 12 that supports the back, a seat 13 that supports the buttocks to the thighs, and a leg 14 that supports the lower part of the knee. Each of these parts is disposed substantially horizontally with the floor surface F at the horizontal position P, and has a thickness of about 4 corresponding to the thickness of a futon (not shown) arranged on the side of the apparatus A.
It is set to 0 mm. The head portion 11 serves as a pillow for the user, and is set to have a slightly larger thickness than the other portions.
It may be set to about 0 mm. The surfaces of the back portion 12, the seat portion 13, and the leg portion 14 are integrally connected by a flexible deformable upholstery.

The entire supporting surface 1 is supported by an L-shaped main body frame 2. That is, the main body frame 2 is a pair of front and rear standing portions 21 that stand substantially perpendicularly to the right side of the support surface 1 as viewed from the front, and horizontal portions extending from the lower ends of the both standing portions 21 so as to go under the support surface 1 respectively. The part 22 and the substantially horizontal connecting part 23 connecting the upper ends of the upright parts 21 are formed by retro-reflective processing of a round pipe member. Further on the right side of the upright portion 21, there is provided a U-shaped auxiliary leg portion 24 having a pair of front and rear wheels 24 a attached to a lower end portion. This device A can be moved by contacting with the floor surface F and rolling. In addition, the rear horizontal portion 22 is designed to prevent the device A from falling backward and to reduce the size of the device during storage.
A pair of overturn prevention bars 2 extending rearward and contacting the floor F
5 protrudes detachably. Further, the two horizontal portions 2
2 has a connecting rod 26 extending in the front-rear direction.
Are linked by These connecting rods 26 are provided with guide holes 26a that open in a long hole shape in the longitudinal direction.
In particular, a long plate-shaped slide rod 27 is attached to the connecting rod 26 on the tip end side so as to be slidable in the front-rear direction along the guide hole 26a. On the other hand, the connecting rod 26 on the base end side is provided with a thin slide rod 28 in the guide hole 26a.
It is slidably mounted in the front-rear direction.

The back portion 12 is supported by a back frame 3 having a downward U-shape. This back frame 3
The lower end 31a of the left standing portion 31 is pivotally connected to the rear end 27a of the slide rod 27, and the right standing portion 32
Is pivotally attached to the rear end 28a of the slide rod 28. A rear end 4a of the armrest 4 extending in the front-rear direction is pivotally attached to a portion of the upright portion 31 on the left side of the back frame 3 slightly above the central portion in the longitudinal direction. The upper end portion 41 of the arm support rod 41 extending substantially parallel to the upright portion 31 of the back frame 3 at a position slightly behind the central portion of the armrest 4 in the front-rear direction.
a of the arm support rod 41.
b is pivotally attached to a portion of the slide rod 27 slightly forward of the center in the longitudinal direction. That is, the slide rod 27, the upright portion 31 of the back frame 3, the armrest 4, and the arm support rod 41 constitute a parallel link mechanism Z in which these parts are folded substantially horizontally at the horizontal position P shown in FIG. I have. The head 11 is fixed to the upper end of the back frame 3. The head 11 may be attached to the back frame 3 so that the height can be adjusted. Note that a switch sw for activating a drive mechanism 6 described later is provided outside the armrest 4.
1 is provided. It should be noted that the support surface 1 for ascending and descending 2
When the switches sw1 are provided, it is possible to prevent the erroneous operation and drive the proper raising / lowering operation of the support surface 1,
If three switches sw1 are provided and one of them is a stop switch, the support surface 1 can be stopped at an arbitrary angle to function as a reclining seat. In addition, such a switch may be one that activates the drive mechanism 6 by remote control operation.

The seat portion 13 is rotatably supported by a front end portion 5b of a substantially L-shaped seat frame 5 which stands on the left side of the seat portion 13 and extends to the bottom side. The rear end portion 5a of the seat frame 5 extends partly rearward and pivotally attaches to the upright portions 31, 32 of the back frame 3. On the other hand, at the front end of the seat frame 5,
The upper end of the leg 14 is rotatably mounted. On the inner surface of the face plate portion 51 provided on the upright portion of the seat frame 5, there is provided a front and rear switch which is capable of operating the drive mechanism 6 by operating simultaneously with the switch sw1 provided on the armrest 4. sw2 is provided. The reason why the switch sw2 is set to be elongated in this way is to enable an accurate switch operation even if the position of the user's hand slightly moves in accordance with the raising / lowering operation of the support surface 1. Further, at the rear end of the lower surface of the seat portion 13, an extendable gas cylinder 5 having a lower end pivotally attached to the upright portions 31, 32 of the back frame 3.
The upper end of the gas cylinder 52 is fixed, and the repulsive force of the gas cylinder 52 is set to be about 5 kg lower than the weight of the user. When the user stands up, a part of the user's load applied to the seat portion 13, that is, about 5 kg, which is the set value, is released, and at the same time, the seat portion 13 is pushed up by the gas cylinder 52 so as to lean forward. This makes it easy for the user to take a walking posture.

At the lower end of the leg 14, the other end of a link 29 having one end pivotally connected to the front ends of the slide rod 27 and the slide rod 28 is pivotally connected.
The movement following 3 is restricted to a predetermined movement. Also,
These links 29, slide rod 27 and slide rod 28
The auxiliary wheel 29a grounded to the floor F
Is provided, so that the forward and backward movement of the slide rod 27 and the slide rod 28 and the raising and lowering of the leg portion 14 are smooth.

The drive mechanism 6 is composed of a power actuator (not shown) housed in a box 61 supported by the upright portion 21 of the main frame 2 and a vertical guide portion 6x. The power actuator is disposed in the box 61 and the switches sw1 and sw
2 and an actuator driven to move vertically by the motor. The vertical guide portion 6x is provided in the box 31
An elongated rectangular guide groove 61a that opens vertically in the inner surface of the seat frame, and a slider that penetrates the guide groove 61a and has one end attached to the actuator and the other end attached to the outer surface of the face plate portion 51 of the seat frame 5. (Not shown). That is, when the actuator is driven, the seat frame 5 at the horizontal position P moves upward without changing the front-back position as the slider moves vertically along the guide groove 61a. In order to prevent the seat frame 5 from moving in the front-rear direction when the seat frame 5 is moved up and down, one end of the seat frame 5 is attached to the upright portion 2 on the front side of the main body frame 2.
Auxiliary guide arm 62 slidably mounted with respect to
Is fixed. In addition, on the outer surface of the box 31, in order to allow a caregiver to operate a drive mechanism,
A switch (not shown) capable of operating the drive mechanism 6 independently of the switches sw1 and sw2 is provided.

In the present embodiment, in addition to the above-described structure, the back portion 12 is provided to reduce pressure on the abdomen of the user when the support surface 1 moves from the horizontal position P to the standing position Q. The sliding sheet portion 7 is formed. That is, as shown schematically in FIG. 4, the sliding sheet portion 7 has two through holes 12 a formed in the upper and lower portions of the back portion 12 corresponding to the user's shoulder and waist, and Hole 1
2a, insert both ends from the front and insert both ends into the back 1
The inner sheet 71 attached to the back side of the second unit 2 and both ends are inserted into the through holes 12a so as to cover the inner sheet 71 from the front, and both ends are fastened to each other on the back side of the back part 12 by fasteners 72a. The outer sheet 72 has a loop shape, and the outer sheet 72 can slide with respect to the inner sheet 71. In order to make the sliding operation of the outer sheet 71 smooth, a smooth material, that is, a polyester material is used in a portion where the inner sheet 71 and the outer sheet 72 are in contact with each other. On the front side of the outer sheet 72, the same material as that of the upholstery of the support surface 1 is used. In addition, such a sliding sheet portion 7 can be formed also in the head portion 11.

Next, the operation of this embodiment will be described.
When the stand-up assisting device A is at the horizontal position P shown in FIG. 3, the user lying on the futon laid on the floor or the tatami mats from the open left side of the support surface 1 near the floor surface F. When the user moves onto the support surface 1, it is supported on the support surface 1 in a lying state. Then, from this state, the user himself switches s.
When w1 and sw2 are turned on or the caregiver turns on the switch, the motor is operated to drive the actuator, and the seat frame 5 and the seat portion 13 start to rise vertically. Accordingly, as shown in FIG. 2, the slide rod 27 and the slide rod 28 are moved forward by being guided by the guide holes 26 a of the connecting rod 26, and the back frame 3 which forms a parallel link mechanism Z together with the slide rod 27. And the arm support rod 41 stands up while tilting forward,
The armrest 4 moves rearward while maintaining a substantially horizontal state rearward. By the operation of the parallel link mechanism Z, the back portion 12, the head portion 11, and the leg portion 14 stand up while tilting forward. The seat 13 and the back 12
The feeling of pressure on the abdomen of the user due to the change in the angle made
This is solved by the fact that the back of the user shifts as the outer sheet 72 of the sliding sheet portion 7 slides on the inner sheet 71 due to the load applied from the back of the user. Then, when the movement of the support surface 1 is stopped at the chair-like standing position Q as shown in FIG. 1, the user can start the rising operation by putting his / her hand on the armrest 4 and the upper end of the seat frame 5. At this time, the user
When the load on the seat portion 13 is reduced by lifting the waist from above, the seat portion 13 is urged by the gas cylinder 52 and the seat portion 13 tilts forward, so that it becomes easier for the user to step forward on the foot. On the other hand, when the user stands up again to lie down, the user may sit down on the seat 13 at the standing position Q and perform the opposite operation.

According to the present embodiment having the above-described configuration, the user can support the support surface 1 from one side of the open support surface 1.
It is possible to easily assist the user to stand up by himself without any help from the caregiver from the recumbent state to the walkable state by operating the drive mechanism 6 afterwards. .

Since one side of the support surface 1 is supported by the drive mechanism 6 and the main body frame 2 via the seat frame 5, the link parallel link mechanism Z is provided only on the other side of the support surface 1. However, the movement of the support surface 1 from the horizontal position P to the upright position Q can be restricted to a predetermined movement, and the movement of the support surface 1 without blurring can be made more reliable.

The present invention is not limited to the above embodiment as long as the drive mechanism is provided only on one side of the support surface. Various modifications are possible without departing from the scope.

[0019]

The present invention is embodied in the form described above and has the following effects.

That is, according to the rising assist device of the present invention, since the driving mechanism for moving the supporting surface from the horizontal position to the standing position is provided only on one side of the supporting surface, a user who is a tatami mat user can use the driving mechanism. It is possible to easily transfer to the support surface from a futon or the like spread on the other side of the support surface where the drive mechanism is not provided. Furthermore, by operating the drive mechanism, the support surface moves smoothly to the standing position, so that the user is automatically erected from the recumbent state to the walking state, and the user can stand up on his own without the help of the caregiver. It is possible to assist effectively. Therefore, the rising assist device of the present invention, which can smoothly and effectively assist the rising of the user in this way, can be extremely useful with little burden on tatami mats and caregivers.

[Brief description of the drawings]

FIG. 1 is a rear perspective view showing an upright position in one embodiment of the present invention.

FIG. 2 is a perspective view showing a transition state from a horizontal position to a standing position in the embodiment.

FIG. 3 is a perspective view showing a horizontal state in the embodiment.

FIG. 4 is a side sectional view schematically showing an enlarged sliding sheet portion in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Support surface 6 ... Driving mechanism A ... Rise assist device F ... Floor surface P ... Horizontal position Q ... Standing position

Claims (1)

[Claims] 1. A drive for moving the support surface between a support surface for supporting the user, a horizontal position for supporting the user in the vicinity of the floor in a reclined state, and a standing position for supporting the user in an upright walking state. And a drive mechanism provided on only one side of the support surface.