JPH11188063A - Movable lift for nursing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movable lift for nursing care so as to respect the self- reliance of the person who is cared. SOLUTION: Composition E of the lift consists of air cylinder 3 that is set at the wagon as it can freely turn around the core of pulley P that is attached to main body 30 of the cylinder, bellows actuators 3a and 3b that let the air cylinder turn by suction and exhaust of the air through wire W that is hanged from the pulley P and supporter E2 that mounts bellows type load detector 40 which can detect the load from the person to be lifted and is attached to the end of the am cylinder's output shaft or to its extended part so that it can turn around freely. If the composition E is in a state that it is movable by operation of operational part A, the air cylinder will round toward a described direction by expansion of bellows actuator as the bellows type load detector 40 detects the load that is smaller than its safety level. When the supporter is inclined against the horizontal level, the output shaft of the air cylinder is move back and forward in order to recover the horizontal state of the supporter.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile nursing assistance transfer device.

[0002]

2. Description of the Related Art When a cared person such as a physically handicapped person or an elderly person stands up or moves from a wheelchair or the like, the carer is usually required. Long hours of nursing labor often hurt your lower back.

[0003] In order to solve the above-mentioned problems, in recent years, many care assisting transfer devices that facilitate the transfer operation of a care receiver have been developed. For example, they are of the following types: Nursing assistance transfer machine of the type that takes up the wire by the electric motor drive and moves up and down in the manner of hanging the cared person The nursing care transfer machine of the type caused by human power The supporter section on which the cared person leans by the electric motor moves up and down However, these nursing assistance transfer devices are of the type that mechanically lift the cared person,
It does not have unity (human affinity) with a care receiver such as a caregiver. In other words, since the transfer device itself does not have the flexibility according to the movement of the care receiver, there is a possibility that an excessively large force is applied to the body of the care receiver.

[0004] In addition, in these transfer devices, the care receiver's independence, that is, the independence of trying to stand up and walk on its own is lost due to long-term use.

[0005] Therefore, among hospitals and cared persons, there is a long-awaited demand for development of a transfer device for mobile care assistance which is inexpensive, has human affinity and does not impair the independence of the cared person.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an inexpensive, mobile assisting transfer device which has human affinity and does not impair the independence of the cared person.

[0007]

According to the present invention, there is provided a transfer device for supporting a side part of a care receiver from a sitting position to a standing position or vice versa by supporting a side portion with a supporter, and the transfer device forming portion. A transfer mechanism for moving the front and rear, left and right, and a transfer unit for nursing care assistance, comprising: a transfer unit constituting unit and an operation unit that allows the transfer mechanism unit to be driven.
The transfer unit includes an air cylinder rotatably mounted on a seat base around a pulley core integrally mounted on the cylinder body, and a wire hung on the pulley by a force that expands and contracts by air supply and exhaust. And a supporter having a bellows-type load detector rotatably attached to an output shaft end of the air cylinder or an extension thereof and detecting a load from a care-receiver. In the state in which the transfer component can be driven by operating the operation unit, when the bellows type load detector detects a load within the safety range, the air cylinder is expanded and contracted by the bellows actuator. The supporter unit is rotated in a predetermined direction, and when the supporter unit is changed from the horizontal state to the inclined state, the supporter unit is returned to the horizontal state. The output shaft of the gas cylinder is adapted to advance and retreat.

The moving mechanism section has wheels, and the wheels are driven to rotate by an electric motor or an air motor.

The function of the transfer device for mobile nursing assistance of the invention described above will be described in the following embodiments of the invention.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a transfer device for mobile nursing assistance according to an embodiment of the present invention.

FIG. 3 to FIG. 5 show a transfer device for mobile care assistance according to an embodiment of the present invention, and FIG. 6 shows an air circuit employed in the transfer device. [Overall Configuration of Mobile Care Assistance Transfer Machine ] As shown in FIGS. 3 and 6, this mobile care assistance transfer device includes an operation unit A, an air pressure source B, a voltage source C, and a mobile device configuration. Part D
And a transfer machine component E, and a casing F surrounding substantially the entirety of the pneumatic pressure source B, the voltage source C, and the transfer / transfer mechanism units D and E. [About the operation unit A] As shown in FIG.
On the panel surface, a movement mode switch R, a transfer assist mode switch I, and a manual setting switch M
, A moving direction button G, and an emergency stop button ST. By pressing the switches R, I, and M, the mode is switched to each mode as shown in FIG. In this operation section A, for safety, the switches R, I, and M are not pressed at all, or when two or more switches are pressed, the mode is set to the fixed position stationary mode. [About Air Source B] As the air pressure source B, FIG.
As shown in the figure, a small compressor 1 driven by 24 V is adopted as a main device, and an accumulator 10 for an air motor, an accumulator 11 for an air cylinder, an accumulator 12 for a bellows actuator, and an accumulator for air collection are used as sub-devices. 13 and a bellows compressor 14.

Here, the bellows type compressor 14
As shown in FIGS. 3 and 6, the bellows pipe 14b is pushed by an eccentric cam 14a which rotates in conjunction with the rotation of the wheel 2. The air is used in combination with a check valve in an air circuit. The configuration is such that air is fed into the motor accumulator 10.

Further, in this mobile nursing assistance transfer device,
The small compressor 1 is not always driven during use, but is driven only when the pressure in the accumulators 10, 11, 12, 13 drops below a certain level. [Regarding Voltage Source C] As the voltage source C, a 24 V storage battery is adopted and is installed at the position shown in FIG. Note that this voltage source C includes a compressor, a switching valve, and air /
Voltage proportional valve (may be an air / current proportional valve; the same applies hereinafter)
Used to drive etc. [Regarding mobile device component D] The mobile device component D includes front and rear wheels 2 and an air motor 20 as shown in FIGS.
And an air clutch 21 for enabling connection / disconnection / switching between the axle of the wheel 2 and the air motor 20; and a vibration damping device 22.

The air motor 20, as shown in FIG.
Driven by air pressure from armature accumulator 10
Pneumatic / voltage proportional valve
V₁₁, V ₁₂Can be rotated forward and reverse by switching
You. Exhaust from the air motor 20 is reversed in the air circuit.
Due to the presence of the stop valve, the valve
And return to the accumulator 10 for air motor.
It is.

The air clutch 21 is, as shown in FIG.
Collecting Yes as is driven to the air pressure from the gas accumulator 13, it is as connection and separation and by switching the two switching valves V ₁₃ switching is performed.
Although not described in detail, the air-clutch 21 allows the mobile nursing assistance transfer device to move left, right, front and back.

The vibration damping device 22, as shown in FIGS. 3 and 6, are formed by feeding the bellows tube through the switching valve V ₉ air from a small compressor 1, vibration or wheel of the small compressor 1 This is to prevent the vibration from 2 from being transmitted to the transfer unit D as much as possible. Incidentally, keep the exhaust air of the bellows tube through the switching valve V ₁₀ when not using the mobile nursing auxiliary ERROR machine.

The mobile unit D can be moved only when the movement mode switch R of the operation unit A is pressed, and cannot be moved only by pressing the movement direction button G. [Configuration of transfer unit E]
As shown in FIG. 3, it is configured by an elevating unit E1 for lifting and lowering the care receiver and a supporter unit E2 provided at an output end of the elevating unit E1. The elevating unit E1 and the supporter unit E2 can be driven only when the transfer assist mode switch I of the operation unit A is pressed, but the elevating unit E1 moves up when it is in the down position, and moves up in the up position. It is designed to descend when in. (Structure of Elevating Unit E1) As shown in FIGS. 3 and 6, the elevating unit E1 is provided with a seat 90 to rotate synchronously around a core of a pulley P integrally attached to the cylinder body 30. And a bellows actuator 3 for rotating one of the air cylinders 3, 3 via a wire W wound on a pulley P.
a and 3b.

The air cylinder 3, as shown in FIG. 6, are employed those having an air brake is performed is supplied to the air brake by switching the air switching valve V ₁₅ from condensing vapor accumulator 13 There is. The air brake is activated during an emergency stop, that is, when a power failure occurs, that is, when the air goes down, or when the output shaft
This is a case where the supporter unit E2 described later does not return to a horizontal state even if the support 31 extends by the amount set by 31.

As shown in FIGS. 6 and 7, the bellows actuators 3a and 3b are constituted by bellows of an external pressure type. The bellows actuators 3a and 3b are contracted by supplying air to the space K outside the bellows, and exhausted from the space K outside the bellows. It is to be extended by.

Here, when the load FS from the care-receiver acts on the supporter E2, the lifting / lowering portion E1 switches the air pressure / voltage proportional valves V ₅ and V ₆ shown in FIGS. 6 and 7 to predetermined positions. Air is supplied to one of the bellows actuators 3a and 3b and exhausted from the other, whereby the bellows actuators 3a and 3b expand and contract to rotate the air cylinders 3 and 3. FIG. 8 shows a flowchart of the rotation control determination of the air cylinders 3, 3 when the elevating unit E1 is at the lowered position (the care receiver is in a sitting posture). In FIG. 8, "f" indicates the supporter unit E2 when the care receiver is in a dangerous state.
The lifting portion E1 rises when FS <f, and slightly descends when FS> f. Although not shown in the figure, the rotation control of the air cylinders 3, 3 when the elevating unit E1 is in the ascending position (the cared person is in the standing position) determines that the elevating unit E1 descends when FS <f. ,
When FS> f, it rises slightly. (Supporter E2) The supporter E2 is rotatably attached to the extension 32 of the output shaft 31 of the air cylinder 3 on the side directly driven by the bellows actuators 3a and 3b, as shown in FIGS. It comprises a bellows-type load detector 40 for detecting the load FS from the cared person and an armpit 41 sandwiched beside the cared person.

As shown in FIG. 7, the bellows type load detector 40 includes a frame 40a, two bellows 40b and 40c connected by a connecting member 40d, and a frame 40e connected to the connecting member 40d. And a frame body through the armpit 41
When a load FS is applied to 40e, the bellows 40b expands to reduce the internal pressure, and the bellows 40c contracts to increase the internal pressure. The load FS acting on the supporter E2 is detected from the pressure difference between the bellows 40b and 40c. The bellows type load detector 40
The air is supplied to the bellows 40b, 40c when in use and the air is exhausted from the bellows 40b, 40c when not in use by switching the two switching valves V ₃ , V ₄ in a predetermined manner. .

Here, the supporter portion E2 is provided when the side contact portion 41 changes from a horizontal state (θ = 90 °) to an inclined state (θ <90 °, θ> 90 °) as shown in FIGS. The potentiometer detects this, and the air pressure / voltage proportional valves V ₁ and V ₂ are switched to predetermined positions to move the output shafts 31 of the air cylinders 3 and 3 back and forth, thereby returning the armrest 41 to a horizontal state. FIG. 12 shows a flowchart for determining whether the output shafts of the air cylinders 3 and 3 are moving forward or backward.

The above-described air pressure / voltage proportional valve V ₁ ,
The exhaust gas of V ₂ , V ₅ and V ₆ is sent to the air collecting accumulator 13 by switching the switching valve V ₁₄ . [Actual operation of transfer unit E] First, a case where the care receiver in the sitting posture is changed to the standing posture as shown in FIGS. First, the control unit of this mobile nursing assistance transfer machine is shown in FIG.
The data representing the relationship between the care receiver's posture and "f" as shown in (1) is input in advance. As shown in FIG. 3, while sitting in a chair, the side contact portions 41 are applied to both sides, and the transfer assist moat switch I of the operation unit A is pressed.

In this state, if the care receiver puts his or her weight on the armrest 41, the air cylinders 3, 3 rotate in the direction in which the supporter E2 rises. At this time, when the side contact portion 41 is not in a horizontal state, that is, when the output shaft 31 of the air cylinder 3 is inclined backward, the output shaft 31 of the air cylinder 3 is contracted. Then, the armrest 41 is set in a horizontal state. With the rotation of the air cylinders 3, 3, the care receiver changes from the sitting posture shown in FIG. 3 to the middle waist posture shown in FIG.
During this time, the correction that the side contact portion 41 is in a horizontal state by the reciprocation of the output shaft 31 is performed, so that the care receiver can ensure that the center of gravity of the weight is above the position where the foot touches the ground. get up. Further, the air cylinders 3, 3 are rotated, and the care receiver changes from the middle waist posture shown in FIG. 4 to the standing posture shown in FIG.
Even during this time, the correction to make the side contact portion 41 horizontal by the advance and retreat of the output shaft 31 is performed, so that the care receiver takes a standing posture with the foot first touching the ground. In addition, in the case where the care receiver is in a dangerous state, the air cylinders 3, 3 rotate in the opposite direction, and the dangerous state of the care receiver can be avoided. at the worst case,
The care receiver releases the operation unit A, presses the emergency stop button ST, or presses two or more switches to stop the operation of the transfer unit E. When the care receiver is in the standing position, the movement mode switch R
By pressing the moving direction button G together, it is possible to walk left, right, front and back.

Next, as shown in FIGS. 3 to 5, a case will be described in which the care receiver in a standing posture is changed in sitting posture. In this case, the transfer assist moat switch I of the operation unit A is pressed. Then, while the correction to make the side contact portion 41 horizontal by the reciprocation of the output shaft 31 is performed, the air cylinders 3, 3 are changed so that the posture of the care receiver changes as shown in FIG. 5 → FIG. 4 → FIG. Rotates. Therefore, the care receiver takes the sitting posture with the foot first touching the ground. As described above, since the elevating unit E1 and the supporter unit E2 operate in accordance with the free movement of the cared person, there is almost no possibility that the cared person will be subjected to an excessively large force.
That is, this mobile nursing assistance transfer device is excellent in human affinity.

As shown in FIGS. 3 to 5, the care receiver always keeps his / her feet on the ground when changing the posture in a sitting position / standing position. Since the mobile device is moved to the left and right, this mobile nursing assistance transfer device does not impair the independence of the care receiver.

Further, since this mobile nursing assistance transfer device is constituted by an inexpensive air device, it can be manufactured relatively inexpensively.

Then, in this mobile nursing assistance transfer device, the manual operation can be switched by pressing the manual setting switch M of the operation section A.

[0029]

According to the embodiments of the present invention, it is possible to provide an inexpensive mobile assisting transfer device which has human affinity and does not impair the independence of the cared person.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an operation unit of a transfer device for mobile nursing assistance according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a basic flowchart of the transfer device for mobile nursing assistance.

FIG. 3 is an explanatory diagram showing a state in which a side abutment portion of a mobile nursing assistance transfer device is sandwiched beside a care receiver in a sitting posture.

FIG. 4 is an explanatory diagram showing a state in which the care receiver is placed in a mid-lumbar posture by the transfer device for nursing care assistance.

FIG. 5 is an explanatory view showing a state in which the care receiver is placed in a standing posture by the mobile care assistance transfer device.

FIG. 6 is an explanatory view of a pneumatic circuit used in the mobile nursing assistance transfer device.

FIG. 7 is an explanatory view showing a transfer unit of the mobile nursing assistance transfer device.

FIG. 8 is a view showing a flowchart of a rotation control judgment of the transfer device constituting unit.

FIG. 9 is a graph showing a relationship between a force acting on the supporter unit and a posture of the cared person when the cared person is in a dangerous state.

FIG. 10 is an explanatory diagram illustrating a state in which the supporter is inclined by an angle θ with respect to a horizontal line.

FIG. 11 is an explanatory diagram illustrating a state in which the supporter is inclined by an angle −θ with respect to a horizontal line.

FIG. 12 is a view showing a flowchart of a cylinder expansion / contraction determination of the transfer unit.

[Explanation of symbols]

 A operation unit D mobile unit configuration unit E transfer unit configuration unit P pulley W wire E1 supporter unit 2 wheels 3 air cylinder 3a bellows actuator 3b bellows actuator 20 air motor 30 cylinder body 40 bellows type load detector

Claims (2)

[Claims] 1. A transfer device for supporting a side part of a care receiver from a sitting position to a standing position or vice versa by supporting a side part with a supporter, and moving the transfer device fore and aft and left and right. A mobile nursing assistance transfer device comprising a mechanism portion and an operation portion that makes the transfer device component portion and the movement mechanism portion drivable, wherein the transfer component portion is integrated with a cylinder body. An air cylinder rotatably attached to the seat base around the core of the attached pulley, and a bellows actuator for rotating the air cylinder via a wire wound on the pulley by a force that expands and contracts by air supply and exhaust. A supporter unit rotatably attached to an output shaft end of the air cylinder or an extension thereof and having a bellows-type load detector for detecting a load from a care-receiver; In the state where the transfer component can be driven by the operation of the above, when the bellows type load detector is detecting the load within the safety range, the air cylinder is rotated in a predetermined direction by expansion and contraction of the bellows actuator, A mobile nursing assistance transfer device, wherein the output shaft of an air cylinder moves forward and backward to return the supporter unit to the horizontal state when the supporter unit changes from the horizontal state to the inclined state. 2. The moving mechanism section has wheels.
2. The transfer device according to claim 1, wherein the wheel is driven to rotate by an electric motor or an air motor.