JPH0675454U - Wheelchair mattress - Google Patents

Abstract

(57) [Summary] [Purpose] Seating stability, smoothness in changing seating posture,
Providing a wheelchair mattress that has excellent functions such as proper seat pressure distribution, pressure ulcer prevention, lightness, resilience, cleanability, and durability, is comfortable to use, and is economical. The purpose is to [Structure] The cushion body (2) is contained in the outer cover (11), the lower surface outer cover (12), the front surface outer cover (13), and the side members (14) and (14). Is a mattress that accommodates. The upper surface side and front surface side jackets (11) and (13) are water-impermeable elastic sheets in which cloth (11b) and (13b) are laminated on at least the upper surface.
It consists of (11a) and (13a). The lower surface side jacket (12) is preferably an elastic sheet (12c) whose lower surface is formed as a non-slip surface (12c).
a) consists of. The side members (14), (14) are
1) An elastic body (14a) which is thicker and harder than the cushion body (2). The inner surfaces of the side members (14), (14) and the end surface of the cushion body (2) are adhered to each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wheelchair mattress which has various functions, is comfortable to use, and has a small economical burden.

[0002]

[Prior art]

 Conventionally, as a mattress for wheelchairs, one in which a cushion body of a suitable thickness is detachably inserted into a cushion cover, or one in which a surface material is integrally fixed to the surface of the cushion body is used. In this case, considering the seating of a person with a lower half of the body (especially a person with thin meat covering the ischium due to a spinal disorder), the greatest consideration should be given to the selection of the thickness and material of the cushion body. Has been paid. Here, as the cushion body, a material having durability and appropriate elasticity such as a foam body such as a flexible polyurethane foam or a cotton-like material is used.

As a special one, a cushion cover in which a cushion made up of many air chambers is housed has been developed. It is also possible to perform the following work on this cushion. (A) By combining cells with different heights, the height of the left and right sides and the front part is made higher than that of other parts to increase stability. (B) Divide the whole into blocks and adjust the air pressure for each block. (C) Air having a high seat pressure is moved to the surrounding cells. (D) Do not send air to the cells where you do not want them to come into contact with your body.

[0004]

[Problems to be solved by the device]

 A mattress in which a cushion body of a suitable thickness is detachably inserted in the cushion cover, or a mattress in which a surface material is integrally fixed to the surface of the cushion body has a certain function and is relatively inexpensive to manufacture. It is widely used due to its low price, but it is not always comfortable to use for people with lower body disabilities, especially those with thin meat covering the ischium due to spinal disorders and patients with tilted buttocks. I can't say that.

In this respect, the mattress in which the cushion composed of a large number of air chambers is housed in the cushion cover is excellent in terms of stability when seated, seat pressure distribution, and pressure ulcer prevention. There is room for improvement in the smoothness of changes in seating posture and cleanability, and since prices are extremely high, there is a tendency to hesitate to purchase for economic reasons. It is also an important requirement that the wheelchair mattress that is used daily does not become an economical burden, as people with disabilities are often unable to control their income and incur medical expenses.

Under such circumstances, the present invention provides stability during sitting, smoothness in changing seating posture, proper sitting pressure distribution, pressure ulcer prevention, lightness, resilience, cleanability, and durability. The purpose of the present invention is to provide a mattress for wheelchairs that has excellent functions in terms of the above, is comfortable to use, and is economical.

[0007]

[Means for Solving the Problems]

 The wheelchair mattress of the present invention comprises an upper jacket (11), a lower jacket (12), a front jacket (13) and side members (14), (14) inside a jacket (1). A mattress having a cushion body (2) housed in it, wherein the upper and front jackets (11), (13) are impermeable to water with at least the upper surface covered with cloth (11b), (13b). It consists of elastic sheets (11a), (13a), the lower surface side jacket (12) consists of elastic sheet (12a), and the side members (14), (14) are thicker than the upper surface side jacket (11). And the cushion body (2) is made of an elastic body (14a) that is harder than the cushion body (2), and the inner surfaces of the side members (14) and (14) and the end surface of the cushion body (2) are bonded together. It is characterized by that.

Hereinafter, the present invention will be described in detail.

The wheelchair mattress of the present invention has a basic structure in which the cushion body (2) is housed in the outer cover (1).

The outer cover (1) includes an upper surface side outer cover (11), a lower surface side outer cover (12), a front side outer cover (13), and side members (14), (14). The rear surface side does not necessarily have to be provided with the outer cover, but the rear surface side outer cover (15) is usually provided.

Here, as the upper surface-side and front-surface-side jackets (11) and (13), water-impermeable elastic sheet (11a) and (11a) and (13b) on which cloths (11b) and (13b) are laminated at least on their upper surfaces are used. 13a) is used. The thickness of the upper surface side and the front surface side jackets (11), (13) is often about 1.5 to 15 mm, considering the seat pressure distribution. Water repellency or waterproofness may be imparted to the cloths (11b) and (13b) on the upper surfaces of the upper surface side and front surface side outer jackets (11) and (13). The front-side jacket (13) can be provided independently of the top-side jacket (11), but it is usually formed by bending the top-side jacket (11) to the front side.

As the lower surface side jacket (12), an elastic body sheet (12a) whose lower surface is formed as a non-slip surface (12c) is preferably used, and a cloth (12b) is optionally provided on the inner surface side. It may be laminated. It is preferable to form the lower surface as the non-slip surface (12c) in order to prevent the slippage during use of the wheelchair and ensure the adhesion. The thickness of the lower surface side jacket (12) is not particularly limited and can be set to any thickness.

As the side members (14), (14), an elastic body (14a) which is thicker than the upper surface side jacket (11) and harder than the cushion body (2) is used. It is desirable that the width of the side members (14), (14) is, for example, about 15 to 40 mm in order to ensure stability when seated. The height should be the same as the thickness of the cushion body (2) described later.

Elastic body sheets (11a), (13a) constituting the upper surface side and front surface side casings (11), (13), an elastic body sheet (12a) constituting the lower surface side casing (12), side The elastic body (14a) that constitutes the members (14), (14) and the elastic body sheet (15a) that constitutes the rear side outer cover (15) are particularly useful as cushioning, moderate elasticity, and lightness. It is a foam sheet made of chloroprene rubber that has closed cells that are excellent in terms of tensile strength, frictional strength, antifouling property, water impermeability (waterproofing), tear strength, etc., as well as polyurethane elastomer and chlorosulfonate. It is also possible to use various elastic foam sheets such as polyethylene, or non-foam elastic sheet.

As the cloths (11b) and (13b) to be laminated on the elastic sheets (11a) and (13a) in the upper surface side and front surface side jackets (11) and (13), various kinds of woven cloth, knitted cloth or Nonwoven fabric is used. Laminating the cloths (11b) and (13b) on the upper surface of the elastic sheets (11a) and (13a) prevents the elastic sheets (11a) and (13a) from being excessively stretched and improves the touch. It is also advantageous in terms of improving aesthetics. It is preferable that these cloths (11b) and (13b) have some elasticity so that they can follow the deformation of the elastic sheets (11a) and (13a). Therefore, the fibers themselves have elasticity. Use the one that is manufactured by using the knitting or weaving method that can obtain a cloth having elasticity or elasticity.

As the cushion body (2), foamed materials such as flexible polyurethane foam, expanded polyethylene and recycled foam are preferably used. The cushion body (2) can be composed of two or more layers of the same material or different materials.

In the present invention, the inner surfaces of the side members (14) and (14) described above and the end surface of the cushion body (2) are integrated by adhesion. By this adhesion and integration, the pressure applied from above the upper surface side jacket (11) is dispersed appropriately, and the seat pressure distribution is optimized.

The upper surface side jacket (11), the front surface side jacket (13) and the lower surface side jacket (12) are adhered to the side members (14) and (14), but the cushion body ( Adhesion between the upper surface of 2) and the upper and front side jackets (11) and (13), or between the lower surface of the cushion body (2) and the lower surface side jacket (12) is not required. However, the difference in performance can be ignored even if it is not performed or is temporarily fixed.

The thickness of the entire wheelchair mattress having the above-mentioned structure, in which the cushion body (2) is housed in the outer cover (1), is preferably 35 to 120 mm, particularly about 40 to 100 mm.

Although the above-mentioned wheelchair mattress is prepared according to the size of the seat of the wheelchair (for example, large, medium, and small), the size of the seat is various, so all of them are available. It is not practical to have a mattress of the right size. Therefore, female surface fasteners (3B), (3B) have been attached to the outer surfaces of the side members (14), (14) in advance, while a male surface fastener (3A) has been provided separately from this mattress. It is desirable to have a spacer (4) as an option. By engaging the spacers (4), (4) with the side members (14), (14), a slight difference between the size of the seat and the size of the mattress is absorbed. As the spacer (4), for example, an elastic body (foam, etc.) with an appropriate thickness or one wrapped with a packaging material is used, and the height is the same as or slightly lower than the height of the mattress. To do.

Also, as described above, the outer covering (1) of the mattress may have the rear surface outer covering (15), but a female surface fastener is attached to the outer surface of the rear surface outer covering (15). (3B) can be attached, and in addition to this mattress, a backrest (5) attached with a male hook-and-loop fastener (3A) at the bottom can be optionally provided. In this way, the backrest (5) can be engaged with the rear surface outer covering (15) of the mattress with one touch if necessary.

[0022]

[Action]

 In the wheelchair mattress of the present invention, the upper and front outer covers (11) and (13) are made of a water-impermeable elastic sheet (11b) and (13b) laminated on at least the upper surfaces thereof. (1) Since it is composed of 1a) and (13a), it has appropriate elasticity and also has good feel to the touch, and also has appropriate slipperiness when seated. Even if it becomes dirty due to incontinence, it can be easily cleaned by cleaning, and drying after cleaning is quick.

A cushion body (2) is arranged inside the outer cover (1), and the side members (14) and (14) are thicker than the upper surface side outer cover (11) and the cushion body (2). The elastic body (14a) is made of a harder material, and the inner surfaces of the side members (14) and (14) are bonded to the end surfaces of the cushion body (2), so the top surface side is moderate when seated. The mattress as a whole is designed with sufficient consideration for stability when sitting, smooth seating posture change, proper seat pressure distribution, and pressure ulcer prevention. ing.

A spacer having female hook-and-loop fasteners (3B) and (3B) attached to the outer surfaces of the side members (14) and (14), and a male hook-and-loop fastener (3A) provided separately from this mattress. By providing (4) as an option, wheelchairs with various seat sizes can be dealt with.

Further, a female surface fastener (3B) is attached to the outer surface of the rear side outer cover (15), while a backrest (5) attached with a male surface fastener (3A) is attached to the lower portion, apart from this mattress. If it is provided as an option, the stability when sitting will be further improved.

[0026]

【Example】

 Next, the present invention will be further described with reference to examples.

Embodiment 1 FIG. 1 is a perspective view showing an example of a wheelchair mattress of the present invention, FIG. 2 is a sectional view taken in the depth direction of FIG. 1, and FIG. 3 is a sectional view cut in the width direction of FIG. FIG. 4 is a perspective view showing an example of the spacer (4), and FIG. 5 is a perspective view showing an example of the backrest (5).

Reference numeral (1) is a jacket, which includes a top surface jacket (11), a bottom surface jacket (12), a front surface jacket (13), side members (14), (14) and a rear surface jacket. Consist of (15).

The upper surface-side and front-side jackets (11), (13) are, for example, water-impermeable elastic sheet (11a), (10a) made of an elastic foam sheet made of chloroprene rubber having closed cells. It consists of nylon jersey cloth (11b) and (13b) stretched on the upper surface of 13a). The front surface side outer cover (13) is formed by bending the upper surface side outer cover (11).

The rear-side jacket (15) is made of, for example, an elastic sheet (15a) made of a 10 mm thick elastic foam sheet made of chloroprene rubber having closed cells.

The lower surface side jacket (12) is, for example, a cloth (12b) made of nylon jersey on the inner surface side of a 5 mm thick elastic body sheet (12a) made of an elastic foaming sheet made of chloroprene rubber having closed cells. It consists of a stretched one. This cloth (12b) may be omitted, but it is preferable that it has tear strength. The lower surface of the elastic sheet (12a) is formed into fine irregularities and serves as a non-slip surface (12c).

The side members (14), (14) are made of, for example, an elastic body (14a) made of chloroprene rubber having closed cells and having a width of 20 mm and a height of 60 mm. This elastic body (14a) is thicker than the upper surface side and front surface side jackets (11), (13) and harder than the cushion body (2) described below.

Reference numeral (2) is a cushion body, which is made of, for example, a foam sheet made of a soft polyurethane foam having a thickness of 60 mm. The cushion body (2) may be composed of a plurality of layers, for example, a soft polyurethane foam on the upper side and a chip foam made of recycled waste polyurethane foam on the lower side.

The inner surfaces of the side members (14) and (14) and the end surface of the cushion body (2) are bonded together by using a rubber adhesive.

The upper surface side jacket (11), the front surface side jacket (13), the lower surface side jacket (12) and the side members (14), (14) are also bonded using a rubber adhesive. I am doing it. It should be noted that the side members (14), (14) and the rear surface side outer cover (15) are provided with small through holes (6) for venting air during mattress production. Adhesion between the upper surface of the cushion body (2) and the upper and front side jackets (11), (13) and between the lower surface of the cushion body (2) and the lower surface jacket (12) does not occur. Not attached, but may be glued.

The overall size of the mattress having the above structure is set to have a thickness of 80 mm, a width of 370 mm, and a depth of 360 mm, for example, but various sizes can be used.

The seat pressure distribution of the mattress having the above structure is shown in FIG. FIG. 7 shows the seat pressure distribution of a mattress having the same structure except that the inner surfaces of the side members (14) and (14) and the end surface of the cushion body (2) are not bonded. The measurement of the seat pressure distribution was performed on a patient with a lower body disability. The seat pressure distribution data by the computer is actually displayed in 13 steps of colors from dark blue to blue to green to yellow to red depending on the low pressure to the high pressure. In FIG. 7, the color is converted to the dot size and displayed.

From the comparison between FIG. 6 and FIG. 7, when the inner surfaces of the side members (14) and (14) and the end surface of the cushion body (2) are integrated by adhesion, such integration is achieved. It can be seen that the seat pressure distribution is more appropriate than when it was not performed. Note that the difference between the seat pressure distributions in the original diagram in which the seat pressure distribution is displayed in color becomes clearer than in FIGS.

Female surface fasteners (3B), (3B) are attached to the outer surfaces of the side members (14), (14). Also, a female surface fastener (3B) is attached to the outer surface of the rear surface side outer cover (15).

FIG. 4 shows a spacer (4), which is formed by covering a foamed polyethylene sheet with an elastic foamed sheet made of chloroprene rubber having a thickness of 1 mm and wrapped with a cloth made of nylon jersey. A male surface fastener (3A) is provided on the spacer (4). The spacer (4) can be engaged with the outer surfaces of the side members (14), (14) in a one-touch manner, if necessary.

FIG. 5 shows a backrest (5), which is formed by covering a foamed polyethylene sheet with an elastic foamed sheet made of chloroprene rubber having a thickness of 2 mm and covered with a cloth made of nylon jersey. The backrest (5) is provided with a male surface fastener (3A). This backrest (5) can be engaged with the outer surface of the rear surface side outer cover (15) with one touch if necessary.

[0042]

[Effect of device]

 INDUSTRIAL APPLICABILITY The wheelchair mattress of the present invention is easy to sit on, has good stability when seated, feels good on the skin, changes the seating posture smoothly, is suitable in terms of proper seat pressure distribution and prevention of pressure ulcers. If it becomes dirty, it can be easily cleaned by washing. Therefore, it is extremely convenient for a person with thin meat covering the ischial bone due to a spinal disorder or a patient with a slant of the buttocks, does not cause fatigue, and can avoid the cause of pressure ulcer.

Further, since it can be manufactured at a relatively low cost regardless of having such excellent function and usability, there is also an advantage that the economical burden on the user and his family is also reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a wheelchair mattress of the present invention.

FIG. 2 is a sectional view taken along the depth direction of FIG.

FIG. 3 is a cross-sectional view taken along the width direction of FIG.

FIG. 4 is a perspective view showing an example of a spacer (4).

FIG. 5 is a perspective view showing an example of a backrest (5).

FIG. 6 Inner surface of side members (14), (14) and cushion body
It is a seat pressure distribution map of the mattress of Example 1 with which the end surface of (2) is adhered.

FIG. 7: Inner surface of side members (14), (14) and cushion body
It is a seat pressure distribution map of the mattress when the end surface of (2) is not adhered.

[Explanation of symbols]

(1) ... jacket, (11) ... upper surface jacket, (11a) ... elastic sheet, (11b) ... cloth, (12) ... lower surface jacket, (12a) ... elastic sheet, (12b) ... cloth, (12c) ... non-slip surface, (13) ... front side outer cover, (13a) ... elastic sheet, (13b) ... cloth, (14) ... side member, (14a) ... elastic body, (15) )… Rear side jacket, (15a)…
Elastic sheet, (2) ... cushion body, (3A) ... male surface fastener, (3B) ... female surface fastener, (4) ... spacer,
(5)… Backrest, (6)… Through hole

Claims (8)

[Scope of utility model registration request] 1. A jacket (1) comprising a top surface jacket (11), a bottom surface jacket (12), a front surface jacket (13) and side members (14), (14).
A mattress having a cushion body (2) housed therein, wherein the upper and front jackets (11), (13) are water-impermeable with at least the upper surface covered with cloth (11b), (13b). Of the elastic sheet (11a), (13a), the lower surface side jacket (12) is composed of the elastic sheet (12a), the side members (14), (14) are from the upper surface side jacket (11). It is made of an elastic body (14a) that is thicker and harder than the cushion body (2), and the inner surface of the side members (14) and (14) and the cushion body
A mattress for wheelchairs characterized in that it is adhered to the end face of (2). 2. The elastic sheet (11a), (13a) constituting the upper surface side and front surface side outer jackets (11), (13) is made of a chloroprene rubber foam sheet having closed cells. The wheelchair mattress according to claim 1. 3. An elastic body (1) constituting side members (14), (14)
The wheelchair mattress according to claim 1, wherein 4a) is made of a foam made of chloroprene rubber having closed cells. 4. The wheelchair mattress according to claim 1, wherein female hook-and-loop fasteners (3B), (3B) are attached to the outer surfaces of the side members (14), (14). 5. A spacer provided with a male surface fastener (3A)
The wheelchair mattress according to claim 4, further comprising (4) as an option. 6. The wheelchair mattress according to claim 1, wherein the outer cover (1) has a rear side outer cover (15). 7. A female hook-and-loop fastener on the outer surface of the rear-side jacket (15).
The wheelchair mattress according to claim 6, further comprising (3B). 8. The wheelchair mattress according to claim 7, further comprising a backrest (5) optionally provided with a male hook-and-loop fastener (3A) at a lower portion thereof.