JP2020116309A - Passenger transfer support apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly transfer a cared person sitting on a chair to a transfer support device.
A transfer support device lifts and transfers a cared person while being held by a holding means. The transfer assist device includes a belt member for pulling a care receiver sitting on a chair toward the holding means, and a winding member for applying tension to the belt member so as to pull the care receiver toward the holding means by winding the belt member. A winding means and a control means for controlling the winding of the winding means are provided. The control means increases the tension applied to the belt member to draw the care receiver toward the holding means side, and when the force applied to the belt member due to the weight of the care recipient becomes equal to the tension of the belt member due to the winding means, the belt By controlling the winding means so as to stop the winding of the member, the care receiver is drawn to a position on the holding means.
[Selection diagram] Figure 1

Description

The present invention relates to a transfer support device for transferring a cared person.

There is known a transfer support device that lifts and transfers a cared person while holding the cared person (see, for example, Patent Document 1).

JP, 2017-170017, A

By the way, for example, the work of transferring a cared person sitting in a wheelchair to the transfer support device is generally a burden on the carer and the cared person, and there is a demand for smooth implementation of this work.

The present invention has been made in order to solve such a problem, and mainly provides a transfer support device capable of smoothly transferring a care receiver in a state of sitting on a chair to the transfer support device. To aim.

One aspect of the present invention for achieving the above object is
A transfer support device for lifting and transferring a cared person while being held by a holding means,
A belt member that pulls the care receiver in a state of sitting on a chair toward the holding means,
A winding unit that applies tension to the belt member so as to pull the care receiver toward the holding unit by winding the belt member,
Control means for controlling the winding of the winding means,
The control means increases the tension applied to the belt member to draw the cared person toward the holding means side, the force applied to the belt member by the weight of the cared person, and the belt member by the winding means. When the tension of the belt member is equal, the winding means is controlled to stop the winding of the belt member, thereby pulling the care receiver to a position on the holding means.
This is a transfer support device characterized by the above.

ADVANTAGE OF THE INVENTION According to this invention, the transfer assistance apparatus which can transfer the cared person who is sitting on the chair to the transfer assistance apparatus smoothly can be provided.

It is a front view showing a schematic structure of a transfer supporting device concerning one embodiment of the present invention. It is the side view which looked at the transfer assistance apparatus shown in FIG. 1 from the side. It is a block diagram showing a schematic system configuration of a transfer support device according to an embodiment of the present invention. It is a figure which shows operation|movement of a thigh support part. It is a flowchart which shows the flow of the transfer assistance method which concerns on one Embodiment of this invention. It is a figure for demonstrating the transfer assistance method. It is a figure for demonstrating the transfer assistance method. It is a figure for demonstrating the transfer assistance method. It is a figure for demonstrating the transfer assistance method.

Embodiments of the present invention will be described below with reference to the drawings. The transfer support device according to an embodiment of the present invention can hold, lift, or transfer a care receiver who is seated on a chair such as a wheelchair to a bed or the like.

FIG. 1 is a front view showing a schematic configuration of a transfer assistance device according to an embodiment of the present invention. FIG. 2 is a side view of the transfer support device shown in FIG. 1 viewed from the side. FIG. 3 is a block diagram showing a schematic system configuration of the transfer assistance device according to the present embodiment.

The transfer support device 1 according to the present embodiment includes a movable carriage portion 2, a main body portion 3 provided on the carriage portion 2, a thigh support portion 4 that supports a thigh of a care receiver, and a care recipient. The belt member 5 that pulls the person toward the thigh support portion 4 side, the winding mechanism 6 that winds the belt member 5, and the control unit 7 that controls the winding mechanism 6 are provided.

A pair of left and right front wheels 21 and a pair of left and right rear wheels 22 are rotatably provided on the carriage 2. Each rear wheel 22 may be configured as a drive wheel driven by a motor or the like. Each front wheel 21 may be configured as a steered wheel, and the dolly unit 2 can move in any direction by steering each front wheel 21.

The main body part 3 is provided with a telescopic mechanism 31 which expands and contracts in the vertical direction. The expansion/contraction mechanism 31 drives an actuator 32 such as a motor in accordance with a control signal from the control unit 7 to expand/contract in the vertical direction. A pair of left and right main body support portions 33 that support the thigh support portion 4 extend horizontally below the main body portion 3.

The winding mechanism 6 is provided at the tip of each main body support portion 33. A pair of left and right arm holders 34 extend in the horizontal direction on the upper side of the main body 3. The arm rest 34 is a plate-shaped member, and the arm of the care receiver can be placed on the upper surface thereof. As a result, the care receiver can be supported and the forward fall can be prevented. By the expansion and contraction of the expansion/contraction mechanism 31, the main body support portions 33 and the arm rest portions 34 move in the vertical direction.

The thigh support part 4 is a specific example of a holding means. The thigh support portion 4 supports the buttocks from the back of the thighs of the care receiver in a sitting state. FIG. 4 is a diagram showing the operation of the thigh support portion. The thigh support 4 is composed of a pair of left and right plate members 41.

The outside of each plate member 41 is bent upward. As shown in FIG. 4, each plate member 41 is configured to be movable in the left-right direction. Therefore, each plate member 41 can be moved and easily inserted between the back of the thigh and the seat surface of the care receiver. The thigh support 4 is moved in the vertical direction by the expansion/contraction mechanism 31 of the main body 3. Thereby, the cared person held by the thigh support 4 can be lifted to an arbitrary height.

The belt member 5 pulls the care receiver toward the thigh support portion 4 side, thereby pulling the care receiver on the thigh support portion 4. The belt member 5 includes a pair of winding belts 51 having one end connected to each winding mechanism 6, a sling 52 connected to the other end of each winding belt 51 and held from the waist to the back of the care receiver, and a sling 52. It has a pair of upper belts 53 connected to both upper ends and extending from the tips of the arm rests 34.

By winding each winding belt 51 by each winding mechanism 6 and pulling the sling 52 toward the thigh support portion 4 side, the care receiver can be pulled toward the thigh support portion 4 side. The upper belt 53 may also be wound up similarly to the winding belt 51.

The winding mechanism 6 is a specific example of winding means. The take-up mechanism 6 applies tension to the take-up belt 51 of the belt member 5 so as to pull the care receiver toward the thigh support 4 side by taking-up the take-up belt 51. The winding mechanism 6 includes, for example, a rotor 61 that winds or unwinds the winding belt 51, and an actuator 62 such as a motor that rotationally drives the rotor 61.

The actuator 62 rotationally drives the rotor 61 according to a control signal from the control unit 7. The actuator 62 is provided with an encoder 63 that detects rotation information (rotation angle and the like) of the actuator 62. The encoder 63 outputs the detected rotation information of the actuator 62 to the control unit 7.

The control unit 7 is a specific example of control means. The control unit 7 controls the actuator 62 of the winding mechanism 6 based on the rotation information of the actuator 62 from the encoder 63. The control unit 7 controls the winding of the winding belt 51 by the winding mechanism 6 by transmitting a control signal to the actuator 62 of the winding mechanism 6.

The control unit 7 includes, for example, a CPU (Central Processing Unit) 71 that performs control processing, arithmetic processing, and the like, a ROM (Read Only Memory) and a RAM (Random Access Memory) that store a control program executed by the CPU 71, an arithmetic program, and the like. ), a memory 72, an interface (I/F) 73 for inputting/outputting signals to/from the outside, and the like. The CPU 71, the memory 72, and the interface unit 73 are connected to each other via a data bus or the like.

By the way, for example, the work of replacing a cared person sitting in a wheelchair with a transfer support device is generally a burden on the carer and the cared person. In particular, when inserting the thigh support portion into the buttocks or the back of the thighs of the care recipient, the posture change when the care recipient is lifted by a holding tool or the posture maintenance when the care recipient is lifted is a burden on the care recipient. On the other hand, the adjustment of the holder for each care recipient requires a caregiver to increase the number of steps and to be proficient. Therefore, there is a demand to smoothly implement such work.

On the other hand, in the present embodiment, the control unit 7 gradually increases the tension applied to the belt member 5 and draws the care receiver toward the thigh support unit 4 side. When the force applied to the belt member 5 due to the weight of the cared person and the tension of the belt member 5 by the winding mechanism 6 become equal, the control unit 7 controls the winding mechanism 6 to stop the winding of the belt member 5. By controlling, the cared person is drawn to a position on the thigh support 4.

As a result, the cared person sitting on the wheelchair or the like can be gradually pulled up to the position on the thigh support 4 by the belt member 5 while maintaining the sitting posture, and the cared person is transferred from the wheelchair or the like. The support device 1 can be smoothly replaced. Therefore, the burden on the cared person and the caregiver described above can be reduced. Further, it is possible to automatically perform the adjustment suitable for the cared person regardless of the body shape and the sitting posture of the cared person. Therefore, it is possible to prevent falls and posture collapse due to caregiver adjustment errors.

FIG. 5 is a flowchart showing a flow of the transfer support method according to the present embodiment. For example, as shown in FIG. 6, the cared person is sitting in a wheelchair. In this state, most of the weight of the cared person rests near the buttocks.

The transfer support device 1 is brought closer to the wheelchair of the care receiver (step S101). Next, as shown in FIG. 4, each plate member 41 of the thigh support 4 is laterally inserted into the back of the thigh of the care receiver (step S102). In this state, only part of the weight of the cared person rests on the thigh support portion 4, and the body portion of the weight rests near the buttocks. Therefore, it is not necessary to lift the cared person with a special holder or the like, and each plate member 41 of the thigh support 4 can be easily inserted into the back of the cared person's thigh. In addition, the care recipient will not be forced into an unreasonable posture.

As shown in FIG. 7, when the sling 52 is installed on the waist of the care receiver (step S103) and the care receiver puts his/her arm on the arm rest 34 (step S104), a part of the care receiver's weight is changed to the arm. Although it rests on the placing part 34, most of the weight of the cared person remains on the buttocks.

The control unit 7 controls the actuator 62 of the winding mechanism 6 to start winding the winding belt 51 of the belt member 5 (step S105).

The control unit 7 controls the torque of the actuator 62 so as to gradually increase the set torque. As a result, it is possible to prevent sudden winding of the winding belt 51 when there is a gap between the sling 52 and the waist of the care receiver.

As shown in FIG. 8, the cared person is gradually drawn horizontally toward the thigh support portion 4 while maintaining the sitting posture. Then, the weight of the care receiver on the sling 52 gradually increases, and the force applied to the belt member 5 by the weight of the care receiver also gradually increases. Further, as the care receiver approaches the thigh support portion 4, the weight of the care receiver on the thigh support portion 4 increases.

Based on the rotation information from the encoder 63, the control unit 7 determines whether the force applied to the sling 52 of the belt member 5 by the weight of the care-receiver and the tension of the winding belt 51 by the winding mechanism 6 become equal. Is determined (step S106).

When the control unit 7 determines that the rotation of the actuator 62 has stopped based on the rotation information from the encoder 63, the control unit 7 applies a force to the sling 52 of the belt member 5 depending on the weight of the care-receiver and the winding mechanism 6. It is determined that the tension of the take belt 51 has become equal (YES in step S106). In this case, the control unit 7 controls to stop the winding of the winding belt 51 by the actuator 62 of the winding mechanism 6 (step S107). In this state, most of the cared person's weight rests on the thighs and is supported by the thigh support portions 4.

Since the body of the care-receiver is supported by the thigh support portion 4, the sling 52, and the arm rest portion 34 from the start to the stop of the winding mechanism 6 as described above, it is possible to maintain the body shape without changing the posture. Become. Therefore, the load on the cared person can be reduced.

As shown in FIG. 9, the control unit 7 controls the actuator 32 of the expansion and contraction mechanism 31 to move the thigh support unit 4 upward and raise the care receiver (step S108).

As described above, the transfer assistance device 1 according to the present embodiment gradually increases the tension applied to the belt member 5 to draw the care receiver toward the thigh support portion 4 side, and the force applied to the belt member 5 depending on the weight of the care receiver. When the tension of the belt member 5 by the take-up mechanism 6 becomes equal, the take-up mechanism 6 is controlled so as to stop the take-up of the belt member 5, thereby pulling the care receiver to a position on the thigh support portion 4. .. As a result, the cared person sitting in a wheelchair or the like can be gradually pulled up to the position on the thigh support portion 4 by the belt member 5 while maintaining the sitting posture, and the cared person is transferred from the wheelchair or the like. The support device 1 can be smoothly replaced.

The present invention is not limited to the above-mentioned embodiments, but can be modified as appropriate without departing from the spirit of the present invention. In addition, this application is an application based on the results of the "next-generation robot society formation technology development project/robot field (robotic smart home where elderly people can live comfortably and comfortably)" by "knowledge base Aichi priority research project".

DESCRIPTION OF SYMBOLS 1 transfer support device, 2 truck part, 3 main body part, 4 thigh support part, 5 belt member, 6 winding mechanism, 7 control part, 21 front wheel, 22 rear wheel, 31 telescopic mechanism, 32 actuator, 33 main body support part, 41 plate member, 51 winding belt, 52 sling, 53 upper belt, 61 rotor, 62 actuator, 63 encoder

Claims (1)

A transfer support device for lifting and transferring a cared person while being held by a holding means,
A belt member that pulls the care receiver in a state of sitting on a chair toward the holding means,
A winding unit that applies tension to the belt member so as to pull the care receiver toward the holding unit by winding the belt member,
Control means for controlling the winding of the winding means,
The control means increases the tension applied to the belt member to draw the cared person toward the holding means side, the force applied to the belt member by the weight of the cared person, and the belt member by the winding means. When the tension of the belt member is equal, the winding means is controlled to stop the winding of the belt member, thereby pulling the care receiver to a position on the holding means.
A transfer support device characterized by the above.

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