JPH03218755A - Human body transfer device - Google Patents

Abstract

PURPOSE:To constitute the device so that even an aged person does not feel a sense of fear, it can be used easily even in a toilet and a bathroom, and also, the transfer can be helped by force of one person by constituting the device so that a head of a transferring person does not go down, his eye is not varied at a sharp angle, and he can be transferred in a natural posture. CONSTITUTION:Feet are put on a pedestal 1 of the transfer device and allowed to approach a position in which knees abut to a knee holder 11. A branch column 3 is tilted and a holding tool 4 is put on the belly part, and a belt 10 is turned to the back and tightened suitably. Subsequently, arms folded lightly are put on the holding tool 4. A helper steps on a pedal 5, and simultaneously, draws a handle 9 provided jointly on the holding tool toward this side. As a result, a person to be helped tilts his body, floats up the waist and transfers to the transfer device from the place where he seats himself until that time. Next, the pedestal 1 is drawn to this side, and allowed to approach the place where the body is put down by converting the direction and moving it to some extent. Thereafter, the lock is detached, and while stepping on the pedal 5, the branch column 3 is inclined to the side of a transferring person, and by an operation reverse to the time of the transfer, the transfer is completed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention is useful for transferring old people with weak legs, physically disabled people, etc. from a wheelchair to a bed, or a wheelchair and a shower chair with a toilet seat.
This is a human body transfer device used for mutual transfer between a sofa, a car seat, etc.

[Conventional technology]

A conventional transfer device of this type has a supporting column that is tiltably erected on a rotary disk, and a receiving plate is provided at the tip of the supporting column. (For example, Japanese Patent Publication No. 1-195857, Japanese Patent Application No. 153-1983)
(Refer to No. 180) [Problems to be Solved by the Invention] The above-mentioned transfer device is designed to improve the mental and
There are many cases where it cannot be used due to physical handicap or the narrowness of the room during home assistance. That is, (a) As shown in Figure 5, when transferring, the care recipient's head is tilted 9, and the line of sight changes suddenly as shown by the dotted line, causing a sense of fear and refraining from using the transfer device. There are many examples of elderly people refusing.

(Example) Living in bed or easy chair on a daily basis,
For people who use a wheelchair only for transportation, as long as the waist is strong (
There are many cases in which the refraction does not exceed 900 degrees. Assistive devices that require bending of the waist cannot be used for these people. (See Figure 5) (c) When using the device in a small room, especially in a bathroom or toilet, if the horizontal projection length 6 when lifting the body onto the transfer device is too large, the direction cannot be changed and the device may become unusable. many. (See Figure 5) (d) In the case of home assistance, statistics show that many of the caregivers are women who are powerless, and their age is also changing from middle-aged to elderly.

When such women reach down to the armpits of their caregivers and step on the pedals while pulling them, their posture becomes unstable as shown in Figure 5, and there are many cases where they are unable to use the pedals.

The present invention aims to eliminate these impeding factors that hinder the use of the transfer device and provide a transfer device that allows a woman to transfer by herself with peace of mind.

[Means to solve the problem]

As a means to achieve the above objective, we analyzed the behavior of a person sitting on a chair standing up.

The reason for this is the recognition that the posture and movements that allow a person to stand up easily are the ones that are most in line with the laws of nature, and should be suitable for the person being assisted. From the behavior analysis, we discovered the following.

As shown in Figure 4, if a person sitting on a chair slightly steps back and then stands up, it is relatively easy to stand up.

``Up to a certain transient height before standing up, only the angle θ of the knee joint changes, and the angle β between the thigh and trunk hardly changes, and β is approximately 90°. This is the phenomenon.

This means that as long as the center of rotation of the transfer device is located approximately near the knee joint, there is no problem even if the user maintains a normal sitting posture on the transfer device.

Of course, there will be some errors in the movements of machines and humans, but these errors can be absorbed by humans' flexibility.

As a result, (a) a main pillar 2 is installed on a pedestal 1 with casters, a tiltable branch pillar 3 is taken out from the main pillar at a position (0) approximately equivalent to knee height, and the body is placed at the tip of the branch pillar. A holder 4 is provided for fixing.

(Exposure) Pedal 5 is taken out from the midpoint (p) of the main pillar and linked to branch pillar 3 by link rod 6.

(c) Center of rotation of the branch column (0') and center of rotation of the pedal 5 (
A wheel is provided on each of I{), and the tilting movements of both are linked by a belt, chain, wire rope, etc. 7.

(d) The body holder 4 has an inverted L-shaped cross section along the abdomen and the lower side of the arms folded at right angles forward from the abdomen. Then, take out 7 belts to wrap around the back of the body from both sides of the holder.

[Effect]

With the above configuration, for example, transfer from a bed to a wheelchair and from a wheelchair to a bed is performed by an assistant in the following steps. (See FIG. 2) (a) Bring the transfer device close to the front of the care recipient who is in a sitting position, and bring the transfer device close to the position where the person's feet are placed on the pedestal 1 and the knees touch the knee pads 11.

(Opening) Tilt the branch post 3, place the holder 4 on the abdomen, and turn the belt 10 around the back to tighten it appropriately.

Then, place the arms lightly folded on the holder 4.

(c) The caregiver depresses the pedal 5 and at the same time pulls the handle 9 attached to the holder toward the user. As a result, the care recipient tilts his or her body, lifts his or her hips, and completely transfers from the place where he or she has been sitting to the transfer device.

(d) Next, pull the pedestal toward you, change its direction, or move it a little to bring it closer to the place where you will lower your body.

(E) After that, remove the lock, tilt the branch post toward the person to be transferred without stepping on the pedal, and complete the transfer by performing the reverse movement of the transfer.

Similarly, the branch column 3 is extendable and retractable, and can be adjusted to suit the passenger. Also, when the branch post rotates to its upper limit, it hits the stopper (not shown here) and the lock automatically tilts and maintains that position.

〔Example〕

1, 2 and 3 show embodiments of the invention. In the figure, reference numeral 1 denotes a cart having casters 12, and both sides have lowered footrests 13.

An upright main pillar 2 is provided approximately in the center of the pedestal. The following three parts are attached to this main pillar: (a) One of them is the knee pad 11, which has a semicircular cross section and has a certain length, forming a pair, and is connected to the main pillar by a metal fitting l8. It is attached to a pillar.

(Explanation) The second is a branch post 3 that tilts around a point (0) roughly equivalent to the knee height of the main post and supports it.

(C) Part 3 is the pedal 5 from the point (p) below the point (0).
is out.

The lower part of the branch post 3 is turned upside down, and the free end at the tip ((1) and the midpoint of the pedal (rL) are linked by a link rod 6, and when the pedal is depressed, the branch post 3 tilts upward. It looks like this.

The body holder 4 is placed at the tip of the branch column, and the inside surface where the body rests is curved to match the shape of the abdomen, and this surface is bent upward at a right angle to provide a flat surface on which the body can be placed with both arms folded. Walls 8 are provided on three sides to prevent the arms from hanging down when tilting.

Furthermore, handles 9 are provided on both sides and are used when tilting or moving the transfer device.

By the way, in Fig. 2, this transfer device is located at point (0) of main pillar 2.
The body moves in a state of balance between the moments generated by the weight W of the caregiver and the body weight W of the person being cared for, which are distributed left and right around a vertical line passing through point (p).

There are two things to keep in mind here.

(b) One of them concerns the weight W1 of the person being assisted.

When the branch column of the present transfer device is tilted upward, the upper body is lifted together with the holder 4, but the lower legs remain stationary.

Since the knees are prevented from moving forward and from side to side by the knee pads 1l, which have a semicircular cross section, the legs themselves bear part of the weight. According to known weight distribution data, when the thighs lift off the seat during a lifting motion, this size is approximately 20% of the body weight.
It is estimated that

Accordingly, the weight W lifted by the transfer device is approximately 80% of the total weight.
%, the position of the center of gravity G1 also excludes the legs.

On the other hand, the weight of the caregiver is transmitted to the branch post as a combined moment of the pedal force from the pedal 5 and the tension from the handle 9, but as a result, 100% of the weight is used. Also, the center of gravity position G is l from the center.

The result is W x l! :) Be x J, Tonashi A caregiver can easily lift a person who is heavier than the caregiver with a pedal effort within the range of body weight W.

Further, when lifting the main column about the vertical axis mentioned above, the left and right moments are balanced and no overturning force acts on the pedestal.

The center of gravity Gl when lifted up is located close to the vertical axis. Even if the pedestal is made smaller accordingly, there is no risk of it falling over.

Figure 3 shows wheel (a) 16 at the knee height position (0') of the main pillar, and wheel (b) 1 at the intermediate point (p').
7 are provided, and each wheel has a branch column 3 and a pedal 5, and its shaft is fixed. Followed by wheel (a) and wheel (
When you put a belt, etc. on b) and step on the pedal, the branch post will tilt.

〔Effect of the invention〕

According to the present invention, a transfer device having the following features can be provided.

(1) The transferee does not have his or her head lowered or his/her line of sight changes sharply, and can be transferred in a very natural posture, so even elderly people do not feel frightened.

(2) Even people who sleep regularly and are unable to bend their hips more than 90 degrees can easily transfer to their lower back.

(3) Horizontal projected length when transferring the body to the transfer device (b
) is small, making it easy to use even in narrow toilets and bathrooms.

(See Figure 2) (4) In general, caregivers are often women and women who are lighter in weight and weaker than the person being assisted. Caregivers are also aging.

Even these people can easily perform transfer assistance by themselves without being forced into unnatural postures or physical strength.

(5) There is no risk of falling because the device is always mechanically balanced, both during transfer and after lifting.

Accordingly, the distance between the canutters, that is, the size of the base can be reduced, so a small transfer device that can be used satisfactorily within the space between the wheels of a wheelchair can be created.

[Brief explanation of drawings]

FIG. 1(a) is a front view of the transfer device of the present invention with the branch column tilted. FIG. 1(b) is a sectional view taken along line AA in FIG. 1(a). FIG. 1(C) mainly shows a plan view of the holder. FIG. 2 is an explanatory diagram of the transfer device and its use. FIG. 3 is a partial front view showing another example of the linkage mechanism between the branch post and the pedal. FIG. 4 is an explanatory diagram of a person's standing-up motion. FIG. 5 shows explanatory diagrams of conventional transfer devices. Figure 1 (a) Figure 2 Figure 3 Figure 5 Correction Written June 18, 1990 Sent June 19, 1990

Claims (4)

[Claims] (1) A pillar is erected on a pedestal with casters, a tiltable branch post is extended from the main post at a position approximately at knee height, and a body holder is provided at the tip of the branch post. human body transfer device. (2) A human body transfer device according to claim 1, characterized in that a tiltable pedal is provided from an intermediate point of the main column and is linked to the tilting of the branch column by a link mechanism. (3) A human body according to claim 1, characterized in that a wheel is provided at the rotation center of the tiltable column and at the center of the tiltable pedal, and the tilting movements of the two are linked by a belt, chain, wire rope, etc. Transfer device. (4) A human body according to claim 1, characterized in that a body holder having an L-shaped cross section is provided at the tip of the tiltable branch column, and the body is held together with belts extending from both sides of the body holder. Transfer device.