JP2001017274A - Cushion material for chair or wheelchair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushion material for a chair or a wheelchair effective for resolving cold-blooded legs desired by the disabled or the aged who have trouble in their lower half or leg. SOLUTION: In a covering a, a seat 1 and a backrest 2 filled with a cushion layer 3 made of wool are connected so as to be foldable. Far infrared radiators 5 are embedded far from each other in the cushion layer 3 comprising the seat 1 and the backrest 2. A hollow part 6 for the correcting coccyx with a desired depth is placed on the part in which a user's coccyx is placed, when the user sits on the seat 1. The far infrared radiators 5 are embedded in the cushion layer 3 of the bottom of the hollow part. These far infrared radiators 5 emit dispersed far infrared radiation of 4 to 25 μm with the peak at 9.5 to 10.5 μm in a pattern which is extremely close to the blackbody radiation under a normal temperature, and also are water and moisture absorptive.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair and a cushion material for a wheelchair, and more particularly to a chair and a cushion material for a wheelchair useful for a disabled person or an elderly person.

[0002]

2. Description of the Related Art Conventionally, there are various types of cushioning materials for chairs and wheelchairs for the handicapped and elderly people, but both healthy people who have filled their skins with elastic materials such as urethane or tetron or chips thereof are used. It had the same structure as the target.

[0003] By the way, disabled people with lower body and lower limbs, especially elderly people who are in wheelchairs, have lower body movement dysfunction, and are generally classified into the following three physiological problems in terms of physical function compared with healthy people. It is said to have. (1) Lower body and lower limbs due to lower body blood circulation, which is a physiological effect on physical function. (2) Local compression sites increase in life, resulting in skin tissue disorders and pressure ulcers. (3) Compression load on the coccyx site.

Conventionally, cushioning materials for chairs and wheelchairs are not actually provided with means for solving the above-mentioned problems (1), (2) and (3). The above (1) slows down metabolism along with the physiological functions of the body. The above (2)
In particular, back bending due to weakness of the abdominal muscles, and what occurs due to prolonged sitting, the bending phenomenon, the back, and prolonged sitting, the seat buttocks, respectively, local pressure, it This causes blood circulation disorders, skin tissue disorders, and pressure ulcers. Here, a pressure ulcer is a skin disorder caused by pressure necrosis caused by the inability of blood circulation due to local vascular compression to stop oxygen and nutrients. It is a trigger. The above (3) is caused by thinning of the buttocks and the muscles near the buttocks, which presses the coccyx region during sitting and causes pain. And other problems. Unless the physiological problems (1), (2) and (3) are solved, not only the discomfort is perceived but also the chair user, especially the wheelchair occupant, progresses to the disease.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to solve the above-mentioned physiological problems long-awaited by persons with disabilities, the elderly and wheelchairs who have difficulty in lower body and lower limbs. An object of the present invention is to provide a cushioning material for a chair and a wheelchair.

[0006]

SUMMARY OF THE INVENTION As a technical measure taken to solve the above-mentioned object, a first aspect of the present invention is to provide a seat having a cushion layer made of a natural fiber in an epidermis, and a seat having a cushion layer formed therein. Infrared radiators are incorporated separately from each other, and at the time of sitting on the seat, a concave portion for coping with a desired depth of a desired depth to relieve a contact pressure with the coccyx region at a portion facing the coccyx region, The gist is that a far-infrared radiator is provided in the cushion layer at the bottom of the concave portion. Claim 2
The seat and the backrest that are filled with a cushion layer made of natural fibers in the epidermis are connected in a bendable manner, and a far-infrared radiator is mutually disposed in the cushion layer of the seat and the backrest. A recess for accommodating a coccygeus of a desired depth for relaxing contact pressure with the coccyx region at a portion opposed to the coccyx region when seated on the seat portion is provided in the cushion layer at the bottom of the crevice. It is assumed that a far-infrared radiator is installed in

[0007] Claim 1 is directed to a chair having only a seat portion and a cushion material for a wheelchair. Claim 2 is directed to a chair having a seat portion and a backrest portion and a cushion material for a wheelchair, respectively.
Far-infrared rays radiated from the far-infrared radiators scattered in the seat and the backrest toward the buttocks and the back are absorbed by the human body and promote metabolism together with blood circulation. The coccyx region is accommodated in the coccygeal recess of a desired depth, the contact pressure is reduced, and the pain at the time of sitting down due to lean muscle is reduced. Effectively heats the tailbone with far infrared rays. The thermal effect on the coccyx region not only reduces the pain, but also massages (micro-massages) the cell tissue in the vicinity including the coccyx region. This micro-massage is effective in warming the entire lower abdomen, and more than just activating the physiology of the pelvic organs and promoting metabolism, its thermal effect affects the tailbone to the dorsal column. Heating the coccyx, particularly the sacrum (located above the coccyx and between the anonymous bones), has two physiological effects on bodily functions. One is that the effects of the micro-massage affect the dorsal column through the bone marrow fluid and lymph fluid to the sacrum, lumbar spine, thoracic vertebra, and cervical vertebra, which link to activation of the nervous system derived from the dorsal column. Also. The coccyx and sacrum make up the pelvis of the two,
In particular, heating the sacrum heats the entire pelvis. In addition to this, the far-infrared radiator is applied to the seat buttocks with a thermal effect over the entire region, and the physiology of the pelvis internal organs is further activated. Thus, heating the coccyx and sacrum can exert an effective physiological action on the spine and pelvis, which are the most important structural bodies for the living body.

[0008] Claim 3 is characterized in that the natural fiber constituting the cushion layer according to claim 1 or 2 is wool.

Wool is an organic compound having excellent characteristics as a natural fiber, and has excellent elasticity and bulkiness due to crimping, and has an increased air content (60% air content) and improved heat retention performance.

According to a fourth aspect of the present invention, there is provided a far-infrared radiator at the bottom of the recess for accommodating the coccyx, wherein an air-permeable center is interposed at an intermediate portion of the cushion layer in the seat portion according to any one of the first to third aspects. The gist of the invention is that the core is housed in a core hole formed by hollowing out the core, and another far-infrared radiator is supported on the upper surface of the core.

The core is preferably made of natural fibers. Then, the far-infrared radiator at the bottom of the concave portion corresponding to the coccyx is immovably fixed by the cushion layer (made of wool) in a state where it is set in the core hole formed by piercing the core.

According to a fifth aspect of the present invention, the far-infrared radiator according to any one of the first to fourth aspects has a peak at 9.5 to 10.5 μm and extremely approximates a blackbody radiation at 4 to 25 μm at room temperature. The gist of the present invention is to disperse and emit far-infrared rays in a pattern, and to have water absorption and hygroscopicity.

The far-infrared radiator is preferably formed by kneading clay, frog-eye viscosity, alumina, zirconium silicate, and water, forming the mixture, drying, and then firing at a temperature of about 600 ° C. to 1200 ° C. Pottery fired in a reducing atmosphere while gradually increasing the temperature to the order is used (Patent Registration No. 2506537). The far-infrared radiator (hereinafter, referred to as pottery) is formed in a disk shape having a desired size, and this is embedded in the seat portion, the seat portion, and the backrest portion separately from each other. As described above.

The wavelength band of the far-infrared radiator is called a resonance excitation region of water and organic polyatomic molecules, and the water and organic polyatomic molecules cause resonance and vibrational excitation and are activated by absorption of electromagnetic waves. . The non-thermal effect area of water and organic matter is a wavelength around 9.4 μm emitted by the human body, a spectrum desired by the living body, radiated to the human body and converted into heat energy, and the temperature of human body tissue is reduced. Produces a thermal sensation that can be obtained when raised moderately.

[0015]

Next, an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment of a cushion material for a chair and a wheelchair of the present invention, and FIG. 3 shows a second embodiment of the same.

The cushion material A for a chair or a wheelchair is composed of a seat portion 1 and a backrest portion 2. The seat portion 1 and the backrest portion 2 are connected to each other in a bendable manner, and both of them are provided in the skin a. It is composed of a cushion layer 3 to be filled, a core 4, a far-infrared radiator 5, and the like.

The skin a is a cloth or the like. This skin a
The periphery thereof is sewn with a flat area of such a size as to constitute the seat portion 1 and the backrest portion 2 so as to be hollow inside, and the internal space is a flat accommodation space a1.

The core 4 is made of a natural fiber and is thin and breathable, and both the seat portion 1 and the backrest portion 2 are interposed at an intermediate portion or a slightly lower portion of the accommodation space a1.

As the cushion layer 3, any fiber can be used as long as it is an organic natural fiber such as an animal fiber or a vegetable fiber, but wool is most suitable. Accommodation space a1 ′ and lower accommodation space a
1 "each.

Although the wool has a low thermal conductivity of 0.9 cal / cm, sec, the specific heat is small and the temperature rises immediately upon contact. Therefore, it immediately warms up at body temperature, and the heat is retained and does not escape. In other words, it has a property of being excellent in contact warmth and having extremely high heat retention. This wool is highly hygroscopic, 20 ° C
When the humidity is 65% and the moisture absorption is 15-16%, it has an extremely high moisture absorption in all fibers. Wool has a functional division in the main body and the skin, and this combination has a respiratory mechanism that absorbs moisture as the outside air changes and dissipates the moisture inside the fiber. Demonstrate good ventilation.

In addition, wool is characterized by being resistant to water-soluble stains. This is due to the water-repellent property (water-repellency) of the skin portion of the wool fiber. The epidermis of wool fiber has a scale-like scale, and its surface is covered with a thin film called epicuticle, which has a water-repellent property.
This water repellency protects the wool fibers from water-soluble dirt. The endocuticle and exocuticle inside are hydrophilic films that transmit the moisture and vaporized water that have passed through the fine holes of the epicuticle to the cortex (cortex), which is the main body of wool. In addition, wool has a high moisture content, so that it generates less static electricity and has less dirt due to dust and dust.
As described above, wool has a contradictory property of high moisture absorption and high water repellency.

In the present embodiment, the far-infrared radiator 5 has a desired diameter, and as shown in FIG.
And is fixed to the upper surface of the center core 4 scattered on the backrest portion 2 and is disposed substantially at an intermediate portion of the entire thickness. In this method of fixing the far-infrared radiator 5, it is easy to adhere and fix to the core 4 with an adhesive, but a pocket is formed in the core 4 for both the seat portion 1 and the backrest portion 2 and the pocket is formed. It is possible to fix it immovably by storing it, and claims 1 to 3 include embedding and embedding in the cushion layer 3 to be filled without using the core 4.

The center core 4 may be provided over the entire cushion member A for a chair or a wheelchair as shown in the figure, but in the backrest 2, the far-infrared radiator 5 is arranged. It may be provided in multiple strips, chairs,
If the cushioning material A for a wheelchair is quilted and divided into a large number of cells, and the far-infrared radiators 5 are embedded in the cushion layer 3 one by one in the compartments, the far-infrared radiators 5 can be almost It is possible to fix it immovably. In the present embodiment, the backrest portion 3 is divided into three band-shaped portions by sewing as shown in the figure, and the seat portion 1 and the backrest portion 2 are bent by sewing of a continuous portion. is there.

In any case, by disposing the far-infrared radiator 5 in the cushion layer 3 made of wool, the feeling of discomfort of the far-infrared radiator 5 when using the cushion material A for a chair or a wheelchair is reduced. In addition to avoiding the water, the far-infrared radiator 5 can absorb the water-repellent moisture of the cushion layer 3 and improve the evaporative drying.

The location of the far-infrared radiator 5 is a location corresponding to the back, waist, buttocks, buttocks and tailbone. By dispersing various diameters at an appropriate arrangement density, it is possible to further reduce the uncomfortable feeling of the far-infrared radiator 5.

In the present embodiment, the seat 1 is arranged at equal intervals on the same circumference as shown in the drawing so that far infrared rays can be radiated over the entire seat buttocks in the sitting position. is there.

According to the present invention, a coping portion 6 for coping with the coccyx at the portion corresponding to the coccyx portion at the time of sitting is used to reduce the contact pressure with the coccyx portion.
Is recessed. The recess 6 for the coccyx corresponds to the center core 4.
The bottom portion is made one step lower than the other portion of the seat portion 1 or the upper surface level of the backrest portion 1 by eliminating the gap, and the far infrared radiator 5 is also provided in the cushion layer 3 at the bottom of the recess. Is arranged. Specifically, the core 4 facing the coccyx region at the time of sitting is partially cut out, and the cut-out portion and the wool filled in the upper and lower portions are made slightly smaller than other portions, and the cut-out portion is used. The far-infrared radiator 5 is accommodated in a certain core hole 14, and the hole edge of the core hole 14 is sewn from above and below to form a concave portion 6 for a tailbone corresponding to a circular shape in plan view as shown in the figure. I have. The form in plan view is not limited to a circular shape, but may be of course an elliptical shape or a rectangular shape in plan view. The depth of the concave portion 6 for coccyx is
It is determined in consideration of the balance between the cushioning property and the compression load of the coccyx, the use feeling of the chair user and the individual in the wheelchair, the health condition, and the like.

The far-infrared radiator 5 is, as described above,
This pottery has a peak at 9.5 to 10.5 μm, emits far-infrared rays in a pattern very similar to blackbody radiation at room temperature between 4 and 25 μm, and has water absorption and hygroscopicity. This far-infrared radiator 5 is first made of 38% by weight of clay at room temperature,
A mixture of 16% by weight of frog and 8% by weight of alumina is mixed with 32% by weight of water and 6% by weight of zirconium silicate, and the whole is kneaded with good stirring, and an appropriate amount of the obtained kneaded product is mixed with a desired molding means. After being molded in a room, it is naturally dried in a room for about 120 hours. Then, the process proceeds to the step of firing the dried molded article. After firing at about 600 ° C. for about 2 hours, the firing temperature is raised to about 1200 ° C. over about 2 hours, and 1200 ° C. Bake for 1 hour. This firing step is performed in a reducing atmosphere. Based on the above manufacturing method, the present inventor conducted various trial experiments on the clay, frog-grain viscosity, alumina, zirconium silicate, water mixing ratio and firing process, and as a result of repeating the research, found that the zirconium silicate mixing and firing temperature When the firing temperature reaches the transformation point of alumina by firing in a reducing atmosphere while raising the temperature stepwise, transformation by heating occurs in alumina,
When heated to 500 ° C., the water of crystallization is lost, and γ-alumina, so-called activated alumina, is obtained. The activated alumina becomes porous in which the refinement of the crystal grain size is promoted, and the refined alumina-based metal is obtained. It is possible to obtain a highly dense porous material that enables efficient absorption and emission of far-infrared rays in which a new crystal structure is formed by elements. This far infrared radiator 5
Indicates that the measured value of the radiant energy at 30 ° C. based on the Vienna's displacement rule u = ν 3 f (ν / T) and the blank constant h = (E / ν) is 4 to 25 μm with the peak at 10 to 11 μm.
At a room temperature at a normal temperature in a pattern very close to blackbody radiation. Therefore, a non-thermal effect region that is a vibrationally excited region of water and organic substances is realized, and furthermore, the alumina contained including the frog-like viscosity is activated to form a new crystal structure of an alumina-based metal element, A more dense porous structure was achieved, and its physical properties were 17.2
%, Moisture absorption 0.8%, specific gravity 2.81, specific heat 0.213
(40 ° C.), and also has excellent adsorption properties to ammonia, as shown in Table 1 below.

[0029]

[Table 1]

When the far-infrared radiator 5 is used in the form of a plate having a certain size, the far-infrared radiator 5 has a larger heat capacity and a higher heat storage property than those used as a powder, a fluid, or a fine piece. When heated, high levels of radiant energy can persist for long periods of time.

Incidentally, the wavelength band of far-infrared rays is called a resonance excitation area of polyatomic molecules of water and an organic substance, and these molecules absorb far-infrared wavelengths inherent in the substance. The wavelength band of far-infrared rays emitted by the pottery (far-infrared radiator) at room temperature corresponds to the resonance excitation region of water and organic polyatomic molecules, and water and organic polyatomic molecules resonate due to absorption of electromagnetic waves of this wavelength. Causes vibrational excitation and activates. Hereinafter, the action of the non-thermal effect region wavelength on a living body will be described. The living body is a far-infrared absorber and a radiator. The wavelength emitted by the human body is around 9.4 μm, which is said to be the spectrum desired by living organisms.

When the human body is irradiated with the far infrared rays, it is converted into heat energy, and the converted heat energy raises the temperature of the surrounding tissue. The sensation obtained when the temperature of human body tissue rises moderately is called the thermal sensation, but the irradiance that causes this thermal sensation depends on the infrared wavelength,
The far-infrared ray (the non-thermal effect area) having a longer wavelength produces a higher thermal sensation at a lower irradiance than the near-infrared ray.

The far-infrared absorption spectrum of the organic compound is 6 to 12 μm. The main organic compound for living organisms is proteins, and the management of living organisms can be concentrated on the management of water and proteins. However, the absorption wavelength of water is 3 μm and 6 to 11 μm, and the wavelength range that matches both (non-thermal effects) Region) is said to be the growing wavelength region that has nurtured life.

The absorption of far-infrared rays into the human body penetrates through the skin, exerts a uniform warming effect on cells such as muscle layers, blood vessels, lymph vessels, and nerves on the body surface, causing resonance of vibrational molecular motion, Acts on micro-massage to cell tissue and activation of intracellular chemicals. As a result, warming from inside the body as a biological reaction, dilation of capillaries, micro-arteries and veins,
It activates the blood circulation of the whole body, that is, enhances metabolism, removes disorders of fluid circulation and enhances tissue regeneration. In addition, as an action on blood, electric resonance occurs in molecular motion due to resonance vibration of water molecules, causing a self-heating phenomenon to increase the temperature of a low temperature portion. This self-heating is due to the lower back,
The temperature of the lower limb is raised to the body's central temperature, which results in faster blood flow to peripheral blood vessels.

In addition, it activates self-perspiration and promotes metabolic activity. The promotion of the sweating action enhances the sweat gland function of both the eccrine gland (regulating body temperature) and the apoclinic gland (eliminating lipid waste), cleanses the skin and skin tissues, and enhances the ability of the human body to maintain homeostasis. Further, the promotion of the sweating action promotes the excretion of waste products from the skin surface and reduces the burden on the organs for excretion of waste products in the body.

As described above, in the present invention, it is extremely important that the far-infrared radiator 5 emits far-infrared rays in the non-thermal effect region wavelength. It is desirable that the far-infrared radiator 5 be buried in the wool which is the cushion layer 3 and that the seat portion 1 reduce the contact pressure with the coccyx region. It is equally important to provide a recess for the tailbone corresponding to the depth and to dispose the far-infrared radiator in the cushion layer at the bottom of the recess.

The formation of the recess 6 corresponding to the coccyx alleviates the pain of the coccyx region at the time of sitting down due to the thinning of the buttocks and the muscles in the vicinity thereof, especially of a wheelchair user, and radiates from the far-infrared radiator 5 at the bottom of the cobb. The tailbone is heated effectively by far infrared rays, and the cell tissue in the vicinity including the tailbone is massaged (micromassage). This micro massage is effective for warming the entire lower abdomen,
In particular, it activates the physiology of the pelvic viscera and affects the tailbone to the dorsal column. The coccyx, especially the sacrum (located above the coccyx,
Heating (between the anonymous bones) affects the dorsal column through the bone marrow and lymph fluid to the sacrum, lumbar, thoracic, and cervical vertebrae, which links to the activation of the nervous system derived from the dorsal column. Heating the sacrum warms the entire pelvis and adds a warming effect to the buttocks with each far-infrared radiator 5 over the entire area, thereby further activating the physiology of the pelvic organs. Thus, heating the coccyx and sacrum can exert an effective physiological action on the spine and pelvis, which are the most important structural bodies for the living body. In addition, the far-infrared radiator 5 functions to absorb the water-repellent water content of the wool, thereby increasing the moisture absorbing effect of the wool and maintaining the air permeability satisfactorily permanently. When moisture is absorbed, the vaporized water is liquefied, but the calorific value of the wool (moisture heat) is large, and in combination with the far-infrared radiator 5, the functional efficiency of the moist heat of the wool is the same as that of the wool alone. It is further enhanced compared to the action. If the amount of heat generated by moisture absorption is large,
It exhibits excellent heat retention when the temperature of the atmosphere decreases, but far-infrared rays emitted from the far-infrared radiator 5 cause a self-heating phenomenon in the moisture of wool, further enhancing the heat retention performance.

The far-infrared radiator 5 receives the wetting heat generated by the wool as a part of the input energy of the far-infrared radiation, and functions as radiation (radiation) having a wavelength in a non-thermal effect region. In the case of conduction and convection, the amount of heat transfer is a function of the temperature difference between the two objects, whereas in the case of radiation, the difference is the fourth power of the absolute temperature. It has a great effect on the amount (radiant energy).

Sweating includes eccrine glands (regulating body temperature) and apoclinic glands (discharging wastes such as lipids).
As described above, the far-infrared radiator 5 in the cushion material for wheelchairs has a deodorizing effect due to adsorption of ammonia.
The deodorant function of the device works. The far-infrared radiator 5
The water molecules also evaporate uniformly by the far-infrared radiation because the drying function of the far-infrared radiation emitted by the radiator also acts on this, and the decomposition and evaporation of oils and fats and bacteria and the odor removal progress in parallel by the drying by the transpiration. This means that the body odor can be removed and deodorized very effectively during Aza.

As described above, wool has a high air content and a low thermal conductivity, so that its heat retention is extremely high even in ordinary cases.
On the other hand, the far infrared radiator 5 has a specific gravity of 2.81 and a specific heat of 0.21.
3, the heat capacity of the pottery 5 is 0.6, which is 60% of the heat capacity of water. Therefore, the far-infrared radiator 5 incorporated in the wool is difficult to cool down, so that the cushioning material A for a chair or a wheelchair can keep the heat retention for a long time and the far-infrared radiation is maintained at that level during that time. This means that the transpiration and drying due to the far-infrared radiation are maintained during that time, and during that time, the humidification is continuously performed according to the outside temperature. This is a partial pressure phenomenon caused by a temperature difference and humidity in the air, and is performed during that time. The breathability, that is, the breathing action of moisture absorption and release is extremely abundant, so that the chair and the wheelchair cushion material A are hardly moist in daily life, and are extremely excellent in health and chairs and the wheelchair cushion material. A.

The chair and wheelchair cushion material A
Has a wheelchair on its backrest 2 and a band 7 for binding to the chair, and can be fixed by the band 7.

FIG. 3 shows a chair and a cushion material A for a wheelchair constituted only by the seat portion 1, and the same operation as in the first embodiment can be exerted except for the function of the backrest portion 2.

[0043]

As described above, the present invention has the following advantages. (Claim 1) (Claim 2) The radiation penetrating action of the far-infrared radiator scattered and embedded in the seat, the seat and the backrest to the human body promotes the physiological function and metabolism of the body, and weakens the abdominal muscles. It can prevent blood circulation disorders, skin tissue disorders, pressure ulcers, coldness, etc. due to localized compression of the back and the buttocks due to prolonged sitting in the seat for a long time, and thinning of the buttocks muscles especially for wheelchair residents The pain caused by the compression of the coccyx region caused by this can be prevented, and a comfortable sitting feeling can be enjoyed. In addition, the thermal effect of the coccyx region massages (micro-massage) the nearby cell tissue including the coccyx region
Activating the physiological function of the entire lower abdomen, especially the pelvic organs, further promotes metabolism, and massages the sacrum located between the anonymous bone located above the coccyx with the coccyx, through the bone marrow fluid and lymph fluid To the sacrum, lumbar, thoracic and cervical vertebrae to activate the nervous system derived from the dorsal column,
In addition, the sacrum is heated to heat the entire pelvis, and the warming effect of the far-infrared radiator over the entire hip region synergistically activates the physiology of the pelvis internal organs, which is the most important for the living body. It is possible to provide a suitable chair and a cushion material for a wheelchair, which give an effective physiological action to the spine and pelvis which are the structural skeleton and do not induce a disease.

(Claim 3) Moreover, wool has a small specific heat and immediately heats up when it comes into contact with it, thereby warming the body and retaining the heat so as not to escape. Therefore, it is effective in preventing cold.

(Fourth aspect) In addition, since the far-infrared radiator at the bottom of the concave portion for accommodating the coccyx has a structure in which the center is pierced and accommodated, the structure is simple.

(5) The far-infrared ray radiator emits far-infrared rays in a non-thermal effect area which exerts a particularly beneficial effect on a living body at room temperature and has excellent water absorption and hygroscopicity. The effect on the body by the non-thermal effect region wavelength is exerted permanently at the time of sitting on a chair or living in a wheelchair, and the effects of the above claims 1 and 2 can be more effectively enhanced,
Because it has water absorption and hygroscopicity, its far-infrared radiator effectively absorbs the water-repellent component of wool, improving the hygroscopic performance of wool and synergistically with the hygroscopicity of the far-infrared radiator itself In addition, it can increase the wettability of the wool, increase the heat insulation as a cushion material for chairs and wheelchairs, and further improve the heat insulation performance by the self-heating phenomenon of wool moisture by far infrared rays emitted by the far infrared radiator. It absorbs sweat and moisture, keeps the body dry (clean) and protects skin tissue. In this way, on the one hand, the far-infrared radiator absorbs the water-repellent component of wool to increase the hygroscopicity of the wool, and on the other hand, to improve the functional efficiency of the wetting heat of the wool and maintain excellent heat retention performance. To maintain the far-infrared radiation of the far-infrared radiator and also keep the transpiration and drying out, which enhances the moisture absorption of the cushioning material for chairs and wheelchairs and enhances the divergent breathing action to increase the breathability. It can improve moisture-absorbing properties as a cushion material for chairs and wheelchairs.

(Claim 6) A far-infrared radiator is formed by kneading clay, frog-eye viscosity, alumina, zirconium silicate, and water, forming the mixture, drying the mixture, and then sintering the mixture at a firing temperature of about 600 ° C. to 120 °.
Since it is a dense porous porcelain obtained by firing in a reducing atmosphere while gradually raising the temperature to about 0 ° C., the far-infrared radiator absorbs odors caused by perspiration, etc. Transpiration and drying, which is a function of infrared rays, decompose and evaporate oils and fats and bacteria, so that the body of chair users and wheelchair users can be kept clean.

As described above, according to the present invention, a recess for coping with a coccyx having a desired depth for relaxing contact pressure with the coccyx region is provided in a portion opposed to the coccyx region at the time of sitting, and a cushion at the bottom of the coccus is provided. A far-infrared radiator is arranged in the layer to prevent pain due to compression of the coccygeal region, especially caused by leaning of the buttocks of the wheelchair user. Massage (micro-massage) activates the physiology of the pelvic organs in particular and further promotes metabolism, and also affects the sacrum, lumbar spine, thoracic vertebra and cervical vertebra through the spinal column through the spinal column through the bone marrow fluid and lymph fluid. By devising to activate the derived nervous system, it exerts effective physiological effects on the most important structural skeleton, the back column and pelvis, and does not induce disease, and further, heats the body Especially in the lower half It keeps the body dry and keeps the body clean, while maintaining high ventilation, making it ideal for people with disabilities and the elderly who have disabilities in the lower body and lower limbs, especially those in wheelchairs. A cushion material for a chair or a wheelchair can be newly provided.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of the present invention.

FIG. 2 is a longitudinal sectional view showing the same use state.

FIG. 3 is a longitudinal sectional view showing a use state of the first embodiment.

[Explanation of symbols]

1: seat part 5: far-infrared radiator 3: cushion layer 6: recess for coccyx 2: backrest part a: epidermis 4: core 14: core hole A: cushion material for chairs and wheelchairs

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[Procedure amendment]

[Submission date] March 21, 2000 (200.3.2
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its object the purpose of the above-mentioned physiology which is demanded by disabled persons, elderly people, and wheelchair users who have lower body and lower limb disabilities. It is an object of the present invention to provide a chair and a wheelchair cushion material which are effective in solving a problem.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

[MEANS FOR SOLVING THE PROBLEMS]
As technical measures taken in claim 1, claim 1
Fill the cushion layer made of natural fibers and
Breathable natural fiber in the middle of the
The far-infrared radiator is placed on the
At the time of sitting on this seat, the tailbone
Relieve contact pressure with the cochlear region at the part opposite to the site
A concave part for the tailbone with a desired depth is recessed, and the bottom of the concave part is
A far-infrared radiator is placed in the
The far-infrared radiator at the bottom of the recess is
Other far-infrared radiator housed in the core hole formed
Is characterized by being supported on the upper surface of the core. Contract
Claim 2 is to provide a cushion layer made of natural fibers in the epidermis.
Fill and natural in the middle of the cushion layer
A seat with an air-permeable core made of fiber,
Backrest filled with a cushion layer made of natural fibers in the skin
Can be folded Noh, the seat and backrest
Far infrared radiators are separated from each other in the cushion layer.
Storage, facing the coccyx region when sitting on the seat
The desired depth of the coccyx to relieve the contact pressure with the coccyx region
An application recess is recessed, and a far-red
An external radiator is arranged, and the far infrared rays at the bottom of
The radiator has a core formed by hollowing the core.
The other far-infrared radiator is housed in the hole,
It is characterized by being carried.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007] Claim 1 is directed to a chair having only a seat portion and a cushion material for a wheelchair. Claim 2 is directed to a chair having a seat portion and a backrest portion and a cushion material for a wheelchair, respectively.
Far-infrared rays radiated from the far-infrared radiators scattered in the seat and the backrest toward the buttocks and the back are absorbed by the human body and promote metabolism together with blood circulation. The coccyx region is accommodated in the coccygeal recess of a desired depth, the contact pressure is reduced, and the pain at the time of sitting down due to lean muscle is reduced. Effectively heats the tailbone with far infrared rays. In addition, the tailbone
The far-infrared radiator at the bottom of the corresponding recess is hollowed out of its core
Cushion layer (Example)
For example, wool). The thermal effect on the coccyx region not only reduces the pain, but also massages (micro-massages) the cell tissue in the vicinity including the coccyx region. This micro-massage is effective in warming the entire lower abdomen, and more than just activating the physiology of the pelvic organs and promoting metabolism, its thermal effect affects the tailbone to the dorsal column. Heating the coccyx, particularly the sacrum (located above the coccyx and between the anonymous bones), has two physiological effects on bodily functions. One of them is
The effect of the micromassage is exerted on the spinal column via the bone marrow fluid and lymph fluid to the sacrum, lumbar spine, thoracic spine, and cervical spine, which also acts to activate the nervous system derived from the spinal column. The coccyx and the sacrum make up the pelvis, and heating the sacrum in particular heats the entire pelvis. In addition to this, the far-infrared radiator is applied to the seat buttocks with a thermal effect over the entire region, and the physiology of the pelvis internal organs is further activated. Thus, heating the coccyx and sacrum can exert an effective physiological action on the spine and pelvis, which are the most important structural bodies for the living body.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

The natural fibers constituting the cushion layer are sheep
Hair is desirable. Wool has a low specific heat and heats up immediately upon contact.
Warm the body, keep the heat and do not miss. Therefore, get cold
It is effective in preventing.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Deleted

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Deleted

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

The far-infrared radiator has a peak at 9.5 to 10.5 μm , radiates far-infrared radiation in a pattern very similar to blackbody radiation at room temperature between 4 and 25 μm,
Those having hygroscopicity are preferred.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

The far-infrared ray radiator is formed by kneading potter's clay, frog-eye viscosity, alumina, zirconium silicate, and water, forming the mixture, drying the mixture, and then gradually increasing the firing temperature from about 600 ° C. to about 1200 ° C. While using ceramics fired in a reducing atmosphere (Patent Registration No. 2506537)
issue). As a result, the odor due to sweating etc.
The radiator absorbs, and furthermore, its far-infrared function, evaporative drying
Drying decomposes and evaporates oils and fats and bacteria.
Users and wheelchair users can keep their bodies clean
You. The far-infrared radiator (hereinafter, referred to as pottery) is formed in a disk shape having a desired size, and this is embedded in the seat portion, the seat portion, and the backrest portion separately from each other. As described above.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

The wavelength band of the far-infrared radiator is called a resonance excitation region of water and organic polyatomic molecules, and the water and organic polyatomic molecules cause resonance and vibrational excitation and are activated by absorption of electromagnetic waves. . The non-thermal effect area of water and organic matter is a wavelength around 9.4 μm emitted by the human body, a spectrum desired by the living body, radiated to the human body and converted into heat energy, and the temperature of human body tissue is reduced. Produces a thermal sensation that can be obtained when raised moderately. That is, far-red
Non-thermal effect areas where extraneous radiators have a particularly beneficial effect on living organisms
Radiates far-infrared rays at room temperature, and has excellent water absorption and hygroscopicity
To the body due to the far-infrared non-thermal effect region wavelength
The effect of the permanent exercise when sitting in a chair or living in a wheelchair,
The effect of claim 1 or 2 can be more effectively enhanced.
As well as water and moisture absorption,
The far-infrared radiator effectively absorbs the water-repellent component,
In addition to improving the moisture absorption performance of wool, the far infrared radiator itself has
Moisture absorption synergistically increases the moist heat of wool, chairs and wheelchairs
Insulation is enhanced as a cushion material for
Self-heating phenomenon of wool moisture due to far infrared rays emitted by projectiles
The heat insulation performance can be further improved by
Absorb sweat and moisture to keep your body dry (clean)
Can hold and protect skin tissue. To this
Therefore, on the other hand, the far-infrared radiator uses the water-repellent component of wool.
Absorbs and improves the moisture absorption of wool, while on the other hand the wetting of wool
Improve heat functional efficiency and maintain excellent heat retention performance
Provide a place for
Sustains far-infrared radiation and transpiration and drying.
Moisture absorption and divergent breathing of chair and wheelchair cushioning material
To improve the breathability by increasing the action chairs, the wheelchair click Tsu
To impart moisture-absorbing properties to the application material
Can be.

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

In the present embodiment, the far-infrared radiator 5 has a desired diameter, and as shown in FIG.
Interspersed backrest portion 2 is fixed to the wick 4 top and all
It is located almost in the middle of the body thickness.

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0043

[Correction method] Change

[Correction contents]

[0043]

The present invention is configured as described above,
There are the following advantages. (Claim 1) (Claim 2) The radiation penetrating action of the far-infrared radiator scattered and embedded in the seat, the seat and the backrest to the human body promotes the physiological function and metabolism of the body, and weakens the abdominal muscles. It can prevent blood circulation disorders, skin tissue disorders, pressure ulcers, coldness, etc. due to localized compression of the back and the buttocks due to prolonged sitting in the seat for a long time, and thinning of the buttocks muscles especially for wheelchair residents The pain caused by the compression of the coccyx region caused by this can be prevented, and a comfortable sitting feeling can be enjoyed. In addition, the far infrared radiator at the bottom of
The structure is simple because it is a structure that houses through the core
And is fixed in the cushion layer,
Good qualitative. In addition, the thermal effect of the coccyx region massages (micro-massages) the cell tissue in the vicinity including the coccyx region, activates the physiological functions of the entire lower abdomen, particularly the pelvic viscera, and further promotes metabolism, Massage the sacrum, located above the coccyx and between the anonymous bones, along with the coccyx, to the sacrum, lumbar spine, thoracic vertebra, and cervical vertebra through the bone marrow fluid and lymph fluid, and the nervous system derived from the dorsal column It activates and also heats the sacrum to heat the entire pelvis, and the thermal effect of the far infrared radiator over the entire hip area synergistically activates the physiology of the pelvis internal organs, and thus,
It is possible to provide a suitable chair and a wheelchair cushioning material that give an effective physiological action to the spine and pelvis, which are the most important structural bodies for the living body, and do not induce disease.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Deleted

[Procedure amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0045

[Correction method] Deleted

[Procedure amendment 15]

[Document name to be amended] Statement

[Correction target item name] 0046

[Correction method] Deleted

[Procedure amendment 16]

[Document name to be amended] Statement

[Correction target item name] 0047

[Correction method] Deleted

Claims (6)

[Claims] 1. A seat in which a cushion layer made of a natural fiber is filled in an epidermis, a far-infrared radiator is incorporated in the cushion layer of the seat part at a distance from each other, and the seat is placed in the coccyx region when seated on the seat part. A concavity corresponding to the coccyx having a desired depth to relieve the contact pressure with the cochlear region is formed in the opposing portion, and a far-infrared radiator is provided in the cushion layer at the bottom of the cove. Cushion material for chairs and wheelchairs. 2. A seat in which a cushion layer made of a natural fiber is filled in a skin and a backrest are connected in a bendable manner, and a far-infrared radiator is provided in the cushion layer of the seat and the backrest. The seats are separated from each other, and a recess corresponding to the coccyx of a desired depth for relaxing the contact pressure with the coccyx region at a portion facing the coccyx region at the time of sitting on the seat portion is provided. A cushion material for a chair or a wheelchair, wherein a far-infrared radiator is provided in the cushion layer. 3. The cushion material for a chair or a wheelchair according to claim 1, wherein the natural fibers forming the cushion layer are wool. 4. An air-permeable core is interposed in a middle portion of the cushion layer in the seat portion, and a far-infrared radiator at the bottom of the coccytic recess is provided with a core hole formed by piercing the core. The other far-infrared radiator is supported on the upper surface of the core.
The cushion material for a chair or a wheelchair according to any one of the preceding claims. 5. The far-infrared radiator has a size of 9.5 to 10.5 μm.
5. The method according to claim 1, wherein far-infrared rays are distributed and radiated in a pattern very similar to blackbody radiation at room temperature between 4 and 25 .mu.m, and have water absorption and hygroscopicity. 2. The cushion material for a chair or a wheelchair according to claim 1. 6. The method according to claim 1, wherein the far-infrared radiator is clay, frog-eye viscosity,
A ceramic which is formed by kneading alumina, zirconium silicate and water, forming, drying, and then firing in a reducing atmosphere while gradually increasing the firing temperature from about 600 ° C. to about 1200 ° C. Any one of items 1 to 5
The cushion material for the chair and the wheelchair described in the item.