JP2023155526A - Sitting position holding chair - Google Patents

Abstract

To provide a sitting position holding chair that allows a sitting position to be held easily according to a degree of handicap, a state of development, and the size of the body of a sitting person, can be adjusted more finely, allows the sitting person to sit stably when in use, is less expensive than a marketed chair, and is light and easy to carry.SOLUTION: A sitting position holding chair includes: a seat plate as a seat part constituting a chair body; a back plate as a backrest part; and a pelvis adjustment plate for supporting the waist of a sitting person. The sitting position holding chair includes a footboard as a footrest place, an adduction-preventing rod, a removable table as needed, and the width, height, and depth can be adjusted.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a chair with a body position holding function that is suitable for people who are unable to maintain a sitting posture on their own, particularly for children.

Traditionally, chairs have been used by people with disabilities in their ability to maintain a sitting posture on their own, such as people with delayed motor development such as cerebral palsy or Down syndrome, or people with autism or developmental disabilities, especially those with physical disabilities. For chairs with a posture support function that supports the posture of children who are unable to sit on their own due to trunk or lower limb disorders, we make handmade chairs using cardboard, milk cartons, etc., or use commercially available chairs to make them easier to use. Adjusting the gap between the body and the seated person with a towel, etc., cutting a cushion (joint) mat to adjust the height and width of the back and armrests, and placing non-slip pads on the seat surface. Many of them were due to ingenuity. However, it is a heavy burden for individuals to prepare materials, etc., and it requires a lot of work, a lot of work, and a lot of effort and trial and error. Even if you go to great lengths to create a chair, you still need to make improvements to suit the growth, level of disability, and developmental status of the person sitting on it. In addition, it may not be possible to make a product that suits the seated person in the first place, and there is a risk that the seated person may not be satisfied with the seated person's body, such as the seated person's body tilting or the buttocks shifting.

On the other hand, there are also chairs commercially available for this purpose. Chairs with this type of posture support function can be adjusted in width, tilt, and height. For example, Patent Document 1 discloses a chair equipped with a support for a body position-maintaining pad whose height, width, and angle can be adjusted at once, and a body position-maintaining pad. This allows stepless height adjustment, width adjustment, and wide range angle adjustment, and especially in the case of children, more detailed adjustments can be made according to the degree of disability.

JP2021-142221A

However, such commercially available chairs are usually expensive. Especially for children, the period of use is short and the size of the chair changes as the child grows. Some are available for rent, but even rentals are expensive, costing tens of thousands of yen per month. In addition, it is extremely expensive, costing well over 100,000 yen when accessories are included, and this places an additional burden on the individual caregiver in addition to the burden of rehabilitation and treatment.

In view of the above-mentioned circumstances, the main problem of the present invention is to make it easier to maintain a sitting position according to the degree of disability, developmental state, and body size of the seated person, to enable more detailed adjustment, and to ensure that the seated person remains stable during use. To provide a seat-holding chair on which one can sit, which is cheaper than chairs currently on the market, and which is light and easy to carry.

In order to solve the above-mentioned problems, the sitting position holding chair of the present invention has a seat plate as a seat part that constitutes the chair body, a back plate as a backrest part, and a pelvis adjustment that supports the waist of the seated person. It is equipped with a treadle as a footrest, an adduction prevention bar, and a removable table, so that the width, height, and depth can be adjusted as needed.

In the seat-holding chair of the present invention, the height can be adjusted by moving at least one of the seat plate, the back plate, or the footboard in the vertical direction, and the width can be adjusted by moving the pelvis adjustment plate in the left-right direction. Furthermore, the depth can be adjusted by moving the adduction prevention rod and the back plate in the front-back direction, so the sitting position can be adjusted according to the degree of disability, growth and development status, and body size of the person sitting. Easy to hold and allows for finer adjustments.

In addition, since it is equipped with an adduction prevention bar, it prevents the seated person's buttocks from rolling on the seat plate, thereby preventing the seated person's entire body from rolling while using the sitting chair. be able to.

Furthermore, by attaching the table along the table guide, the posture of the table is stabilized even for children with delayed motor development such as those with cerebral palsy or Down's syndrome, children with autism or developmental disorders, and children who require assistance with meals, etc. By keeping the patient in a relaxed state, the patient can concentrate on eating, etc., and it is easier to provide assistance.

Although it is difficult for individuals to purchase expensive commercially available sitting chairs, such as when the seated person is an infant and a disability cannot be determined yet, the sitting position holding chair of the present invention is made of inexpensive materials such as wood, and is relatively simple. By making the structure easy to process and assemble, it can be provided at a low price, so it can be purchased even without a disability notebook, making it a reasonable product. In addition, it is light and easy to carry, so it is easy to use at home depending on the necessary situation, easy to carry when going out, and suitable for rental.

FIG. 1 is a front view of the seat-holding chair of the present invention. FIG. 2 is a side view of the sitting chair of the present invention. FIG. 3 is a plan view of the seat-holding chair of the present invention. FIG. 4 is a photograph of the seat-holding chair of the present invention (A) with the table removed and (B) with the table attached.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a seat-holding chair according to the present invention will be described in detail below based on an embodiment shown in the drawings. Fig. 1 is a front view of the seat-holding chair of the present invention, Fig. 2 is a side view, Fig. 3 is a plan view (both with a table attached), and Fig. 4 shows (A) a state with the table removed, and (B) ) This is a photo with the table attached.

This sitting position holding chair includes a seat plate 1 as a seat part that constitutes the main body of the chair, a back plate 2 as a backrest part, a pelvis adjustment plate 3 that supports the waist from both left and right sides of the seated person, and a footrest. The footboard 4 is connected to the side plate 6 and fastened with fastening screws, bolts, and nuts. Further, the seat plate 1 is provided with an adduction prevention rod 5 on which the crotch of the seated person is located and prevents the seated person's entire body from rolling.

The height of the footboard 4 attached to the leg part 7 of the side plate 6 (the length from the back of the knee to the point where the heel touches the ground) can be adjusted by moving up and down. Further, the pair of pelvis adjustment plates 3 firmly support the waist and pelvis of the seated person from both the left and right sides. The width (the length of the pelvis in a sitting state) can be adjusted by moving the pelvis adjustment plate 3 in the left-right direction.

In this embodiment, only the tread plate 4 can be adjusted in height, but it is possible to adjust the height of not only the tread plate 4 but also the seat plate 1 and the back plate 2 by moving them in the vertical direction. It is preferable to Further, although the back plate 2 of the backrest portion is arranged to be perpendicular to the seat plate 1, the inclination and angle may be adjustable. Alternatively, the footboard 4 may not be provided, the foot may be placed directly on the floor, and the height may be adjusted using one or both of the seat plate 1 and the back plate 2. Although the pelvic adjustment plates 3 are provided in a pair on the left and right sides, they may be provided on one side. Although the tread plate 4 is arranged parallel to the seat surface, the angle of the tread plate 4 may be adjusted. In addition, by providing a handle on the back plate 2 as shown in the drawing, it becomes easier to carry the device. The handle may be hollowed out in the back plate 2, or may be attached separately.

By providing the adduction prevention rod 5 in the part of the seat plate 1 where the crotch of the seated person is located, the body is less likely to shift, the trunk can be supported from the pelvis, and the posture is stabilized. It also prevents contact between the knees due to tension in the adductor muscles of the hip joint. Furthermore, the seated person's buttocks are prevented from rolling on the seat plate, and the seated person's entire body is effectively prevented from rolling while using the seat-holding chair. Furthermore, by attaching a pad or the like as a cushioning material around the adduction prevention rod 5, it is less likely to cause pain and has an anti-slip effect. Additionally, some children run away when sitting on the chair, so this helps prevent escape. The adduction prevention rod 5 may be fixed, or the depth (the length from the back of the seated person to the back of the knee) may be adjusted by moving it in the front and back direction using a fastening screw or the like. Although the adduction prevention rod 5 is round in shape, it is not limited to this and may be in other shapes such as an oval or a trapezoid, and it may also be installed obliquely rather than at right angles to the seat plate 1, or the angle can be adjusted. good. Further, the depth may be adjusted by moving the back plate 2 in the front-back direction. In this case, the depth may be adjusted by moving both and/or either of the adduction prevention rod 5 and the back plate 2 in the front-rear direction.

A table guide 8 is provided on the side plate 6, and a table 9 is made removable, which is useful during meals. The table 9 has a substantially U-shaped cutout in the portion facing the torso of the seated person, and by inserting the fitting member 10 provided at the bottom of the table along the table guide 8 provided on the left and right side plates 6, It is made removable. This prevents the table 9 from shifting to the left or right with respect to the side plate 6. The fitting members 10 provided at the bottom of the table 9 are installed on the left and right sides, but in addition to this, a tilting member is also installed on the front side facing the seated person (the back side when viewed from the seated person), and the fitting members 10 are aligned with the fitting members 10. By attaching it in a lever shape, the table 9 can be prevented from shifting with respect to the side plate 6 in the direction toward the seated person. A pad or the like may be attached as a cushioning material to the portion of the table facing the torso of the seated person (the U-shaped cutout portion). Note that the shape of the table is not limited to this. The table position may be fixed by attaching fastening screws, bolts, or nuts to the table guide 8, table 9, and fitting member 10.

Although the pelvic adjustment plate 3, adduction prevention rod 5, and table 9 are not essential to the present invention, they are useful for people with disabilities, especially children, depending on the degree of disability, body size, and growth and development. It is desirable that the device be adjustable and removable depending on the situation and purpose. These may be attached and adjusted after the seated person is seated.

Although the seat-holding chair of the present invention has the functions necessary for holding the sitting position as described above, it has a relatively simple structure, making it easy to process and assemble. Further, by using an inexpensive material such as wood, it can be provided at a low price.

Hereinafter, an example of use of the seat-holding chair of the present invention will be described using a child with Down syndrome as an example. Children with Down syndrome generally develop slowly. When feeding baby food, etc., it is necessary to choose a chair that matches the state of motor development. Therefore, by using the sitting position support chair according to the present invention, it is easy to feed baby food, and the child can also adjust and maintain a posture that makes it easy for the child to eat baby food. By keeping your posture stable, you can move your tongue more effectively. In order to be able to move the tongue properly, postural support is essential so that the neck and back, which are connected to the tongue, remain straight. The sitting position holding chair of the present invention firmly supports the child's waist and pelvis from both sides by adjusting the width by moving the pair of pelvis adjustment plates 3 in the left and right directions. Furthermore, by moving the adduction prevention rod 5 in the front-rear direction to adjust the depth, the body is less likely to shift, the trunk can be supported from the pelvis, and the posture is stabilized. Sitting in a way that doesn't stabilize your core can lead to poor posture, which can lead to decreased hand function, which can also have a major impact on your intelligence. Here, an unstable sitting posture refers to a sitting posture such as hunching over, kneeling upright, or sitting cross-legged on one side because the unstable body requires support.

By the time a child with Down syndrome has become accustomed to baby food, he or she has reached a state of motor development, such as being able to sit up with his hands on the floor, crawling on all fours, and begin to crawl. Although it stabilizes, it is still a difficult period to sit on a regular chair. Therefore, you need to choose a chair with support that allows you to maintain a firm sitting position. The sitting chair of the present invention is also useful during this period. If you cannot maintain your posture and your body is wobbly, you will not be able to move your mouth properly, so by firmly stabilizing your posture with the pelvic adjustment board 3, adduction prevention rod 5, back board 2, etc., you can move your mouth. I can concentrate on things. It is also necessary to ensure that the feet are firmly on the floor and that the legs are not spread too far apart.The height of the seat-holding chair of the present invention can be adjusted by moving the footboard 4 in the vertical direction. This is suitable because the feet can be firmly attached to the footboard 4 and the pelvis adjustment board 3 can prevent the feet from opening too much. By adjusting the height according to motor development and growth, the soles of the feet (heels) can be firmly planted on the ground, resulting in stable posture. Additionally, children with Down syndrome often have hypersensitivity and do not like the soles of their feet touching the ground, so it is useful to help them get used to the soles of their feet touching the ground. Although the angle of the back plate of the seat-holding chair of the present invention cannot be adjusted, in the case of a child with Down's syndrome, it is effective to make the back plate at a right angle without adjusting the angle to help stabilize the posture.

By the time children with Down syndrome become their main source of nutrition, they have reached a state of motor development where they can crawl long distances, stand on their own, and begin to walk. By this time, children with Down syndrome will be able to maintain their posture on their own without the support of a chair, but children with Down syndrome often have low muscle tone and a flexible body, so maintaining their posture is more taxing than normal. . Therefore, choosing a chair with support for your hands, such as a table, will make it easier to maintain your posture. Therefore, the seat-holding chair of the present invention is useful because it allows the user to maintain a sitting position and is equipped with a removable table.

Children with Down syndrome often have small bodies. The sitting position holding chair of the present invention can be adjusted in width, height, and depth, and the table is also removable and can be adjusted in the depth direction, so it can be adjusted to an appropriate position to match the body size of the person sitting. It has become. For children with Down syndrome, it is important to choose a chair that is developmentally appropriate to provide firm support for the seat and trunk, which serves as a base. By choosing a chair that matches the state of motor development, the person sitting on the chair will be able to maintain a stable posture without falling over, making it easier to eat. Easier to provide assistance, such as making it easier to feed baby food. As described above, the seat-holding chair of the present invention is useful for those who require assistance in maintaining their sitting position, especially for children. Not only when eating, but with the sitting chair of the present invention, children can place both feet firmly on the floor and stabilize their bodies, allowing children to use their hands effectively and enjoy playing with toys while sitting. You can spend a considerable amount of your day sitting in this chair, playing, drawing, etc. It also has the effect of increasing your confidence and motivation, making it easier to demonstrate your various abilities.

Note that although the above-described embodiment and Example 1 are examples of preferred forms of the present invention, the present invention is not limited thereto, and various modifications can be made without departing from the gist of the present invention. In addition, in the above embodiment, an example is given in which the chair is applied as a special chair useful for people who need assistance in maintaining a sitting position, but the application is not necessarily limited to special chairs, and is usually used. It is also possible to apply the present invention to a child's chair or an adult's chair requiring assistance.

In the examples and drawings, wood is used as the material, but the material is not limited to this, and other materials such as plastic resin, metal, and cardboard may also be used.Cushions and pads may be used in the contact area between the seated person and the chair. It is also possible to devise a way to soften the degree of contact with the seated person by providing such a cover. Further, a cushion, a pad, or a non-slip sheet may be provided on the seat surface (seat plate), and the height of the pelvis adjustment plate itself may be changed. Furthermore, a headrest that supports the head and whose height and angle can be adjusted may be attached, or an armrest portion may be provided. In addition, it is preferable that the fastening screw be a screw with a grip so that it can be easily operated without tools such as a screwdriver or spanner, but of course, it is also possible to tighten it with a tool such as a screwdriver or spanner as a normal screw without a grip. It may also be operated.

The chair described in this example and the drawings is a prototype, and was manufactured using wood. The prototype of this example could be manufactured for about 30,000 yen including material and processing costs. The weight is 5 kg, which is not a problem for carrying around, and it is possible to make it even lighter by devising materials, etc. Furthermore, it has a handle, making it easy to carry. If it becomes possible to mass-produce this chair, there is a good chance that it will be possible to further reduce costs and offer it at a lower price. For mass production, it is desirable to have a chair with an optimal shape, such as having fewer protruding parts such as bolts and nuts to ensure safety, and using cushioning material for the back and seat.

Further, if necessary, a chest belt, shoulder belt, waist belt, etc. may be provided to further fix the posture of the seated person. Providing casters on the legs 7 makes it easier to move and carry. In addition, adding a locking function to the casters will be a safety measure. If necessary, the length of the leg portions 7 can be changed or the leg portions 7 can be made into a telescoping structure so that the height can be adjusted, thereby expanding the range of uses.

Since the seat-holding chair of the present invention is relatively light and has a handle, it is suitable for carrying and can be used for various purposes at home or carried when going out. It can also be leased to treatment centers, childcare facilities, etc. Although this example is a prototype, by setting up a system for mass production, costs can be reduced and the product can be provided at a low price.

1 Seat plate 2 Back plate 3 Pelvis adjustment plate 4 Step plate 5 Adduction prevention rod 6 Side plate 7 Leg portion 8 Table guide 9 Table 10 Fitting member

Claims (9)

A chair characterized by comprising a seat plate as a seat part, a back plate as a backrest part, and a pelvis adjustment plate to support the waist of a seated person. The chair according to claim 1, wherein the chair is provided with a footboard as a footrest. The chair according to claim 1, wherein the chair is provided with an adduction prevention rod. The chair according to claim 1, characterized in that the chair is provided with a removable table. The chair according to any one of claims 1 to 4, wherein the width is adjusted by moving the pelvis adjustment plate in the left-right direction. The chair according to any one of claims 1 to 4, characterized in that the height is adjusted by moving the seat plate and/or the back plate in a vertical direction. 3. The chair according to claim 2, wherein the height is adjusted by vertically moving the footboard. 4. The chair according to claim 3, wherein the depth is adjusted by moving the adduction prevention rod and/or the back plate in a front-back direction. The chair according to claim 3 or 8, wherein the angle of the adduction prevention rod and/or the back plate is adjustable.