JP3241135U - Back pain countermeasure cushion and portable cushion - Google Patents

Abstract

[Problem] A lumbago characterized by allowing the user to exercise naturally in a sitting state by allowing the air enclosed in the hollow portion to move freely according to the movement of the center of gravity of the body when the patient is seated. Provide countermeasure cushions and portable cushions. SOLUTION: This cushion consists of a non-breathable sheet (1) and can enclose air in a hollow part (5). A hollow part (5) in which air can move is provided at a position corresponding to two bulges of the left and right buttocks, and the thickness is thinner than the hollow part (5) when air is enclosed, making it impossible for air to move. and a fixed portion (6). [Selection diagram] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a cushion for back pain and a portable cushion.

Conventionally, various cushions and floor cushions have been used, and portable ones that can be easily folded and carried have also been developed.
The main components of a cushion or the like are a cover that covers the outside like a bag and a cushioning material that fills the inside. By using, at the time of use, those that are inflated with air are used.

Utility Model Registration No. 3089470 JP-A-10-313970 JP-A-2008-6234 JP-A-2002-272563

For example, Japanese Utility Model Registration No. 3089470 entitled "Zoom Cushion with Air Package" discloses a cushion that maintains and retains the cushioning effect by accommodating connected air capsules in the cushion.
According to this invention, the floor cushion is provided with an opening for inserting and removing the air package, and the air package connected from the opening is accommodated or exchanged to maintain the cushioning effect at all times.

By the way, in modern times, many people suffer from back pain due to sitting in a chair in the office, etc., or maintaining the same posture while driving a car, and it has been pointed out that this is increasing due to the progress of the aging society. ing.
According to a recent survey, around 28 million people suffer from back pain, and around 30% of both men and women are suffering from back pain. Chairs and cushions have also been developed.

For example, Japanese Patent Application Laid-Open No. 10-313970, "Backrest for Preventing Lumbago," discloses a cushion with a backrest to prevent the occurrence of lumbago by keeping the body in a correct posture when sitting on a chair or the like. It is
According to the present invention, a pillow made of a deformable air cushion is applied to the sacral vertebrae, a fixing part is placed under the buttocks, and the sacral vertebrae are supported from the rear, so that the body is kept in a correct posture and the occurrence of lumbago is prevented. It is said that it will be done.

In addition, various types of chairs and cushions for alleviating lumbago are available on the market.
For example, in order to support the pelvis in the correct shape, a chair-like cushion with a backrest and a seat that match the shape of the body, and a three-dimensional seat that matches the shape of the buttocks and thighs. In addition, there are cushions with moderate repulsive force.
As another example, there are those in which the entire chair is shaped like a ball so that balance exercise can be exercised while sitting, and in which the installation portion of the chair is shaped like a hemisphere.

However, most of the various chairs and cushions for relieving back pain have large-scale structures and sizes that match the shape of the body in order to support the correct shape of the pelvis and spine. Foamed urethane and other solid elastic materials are used to exhibit
These conventional commercially available products fix the waist and posture or provide resistance and support, and support spinal exercises that lead to measures such as improvement and prevention of back pain and improvement of physical performance. It was not effective.
In addition, due to its large-scale structure, size, and volume, it could not be applied to portable cushions that can be easily carried around, such as deflating the air when not in use.

For example, Japanese Unexamined Patent Application Publication No. 2008-6234 "Cushion for hip-lifting effect, activation of brain power, improvement of lumbago, etc." uses air as a cushioning material.
The present invention achieves both a necessary and sufficient effect of dispersing sitting pressure and a point pressure (shiatsu) effect at the same time, and can solve physical pains such as reduction of lumbago, sagging of the buttocks (buttocks), distortion of the back muscles, etc. It's a cushion.
Although air is used as the cushioning material in this invention, soft rubber spheres made of natural rubber or the like are combined to maintain the seat pressure dispersion effect even when sitting for long periods of time or in the same posture. The point pressure (acupressure) effect is obtained by the appropriate and sufficient repulsive force of the rubber sphere.
However, in order to prevent or improve low back pain, and to obtain the effect of improving physical performance, it is important to have an exquisite sense of stability that balances moderate stability and instability.
In the above invention, since a structure is adopted in which a plurality of spheres are arranged to provide a soft cushioning property and a sense of stability when sitting, such an effect is not exhibited.

In addition, in Japanese Patent Laid-Open No. 2002-272563 "Air Cushion and Chair Equipped with Air Cushion", it is possible to easily change the posture, and after the change, the air pressure is balanced and stably supported, and it is possible to sit for a long time. A comfortable air cushion and a chair with an air cushion are disclosed.
In this invention, at least two or more air chambers are juxtaposed in the left-right direction, and each air chamber is communicated with a narrow communication portion. With this configuration, the air can move between the air chambers through the narrowed communicating portion according to the change in the sitting position accompanying the change in posture, and the posture can be easily changed. After the posture is changed, the air pressure in the communicating air chambers is balanced so that the weight can be stably supported.
In the specification of the above invention, regarding conventional cushions and the like using air, it is stated that ``conventionally, in an air cushion in which air is enclosed between the upper and lower sheets, the inside has one air chamber, or a plurality of air chambers. ([0002]), and the conventional portable cushion described in [0002] of this specification is also like this.

In contrast to conventional portable cushions, Japanese Patent Laid-Open No. 2002-272563 states, "When you sit on an air cushion, the air cushion deforms according to your sitting posture, but the interior is an air chamber. or because it is partitioned into a plurality of independent air chambers, when the sitting position is changed and the posture is changed, the internal pressure cannot be changed correspondingly, making it difficult to change the posture. Therefore, there is a problem that it causes pain in office work, study, car, train, airplane, etc., which requires sitting for a long time.” ([0003]).

However, in order to solve such a problem, in the above-mentioned Japanese Patent Application Laid-Open No. 2002-272563, at least two or more air chambers are arranged side by side in the left-right direction, and each air chamber communicates with a narrow communication portion, thereby improving the posture. Air can move between the air chambers through narrowed communication parts according to the change in sitting position, and it is possible to easily change the posture, and after the change, the air pressure balances and supports it stably. To provide an air cushion that is comfortable to sit on, and a chair equipped with the air cushion that makes it easy to continue sitting for a long time” ([0004]).
For this reason, in the present invention, a plurality of walls partitioning the air chambers are provided in a fixed state.

However, even in this invention, a structure with cushioning properties and a sense of stability when sitting is adopted.
Therefore, it is not possible to obtain an exquisite sense of stability in which the range of motion of the pelvis, moderate stability, and instability are balanced, which is important for taking measures such as prevention and improvement of back pain and improving physical performance.
It does not have a structure or function that supports the movement of the spine, which is important for improving or preventing lumbago, and for obtaining the effect of improving physical performance.

Furthermore, in any of the above inventions, since they have a large-scale structure, size, and volume, they cannot be easily moved or carried, and are kept in a fixed place. Such a configuration cannot be deflated when not in use, and cannot be folded, resulting in a bulky volume.
For this reason, it has not been possible to apply the function of preventing lumbago to a portable cushion that can be easily carried around.

Therefore, in the present invention, we have solved the above-mentioned various problems, repeated improvements in the overall shape and structure, and created a cushion that allows the pelvis to be moved without applying unnecessary load to the waist, with a simple structure. To provide a cushion for taking measures against lumbago, for taking measures such as prevention and improvement of lumbago by loosening a stiffened body and preventing the body from stiffening.
In particular, by making the inside of the cushion one air chamber and moving the air inside the cushion, it is possible to easily maintain and change one's posture. Another object of the present invention is to provide a cushion for preventing lumbago, which allows the user to exercise naturally in a sitting state by allowing the air enclosed in the hollow part to move freely according to the movement of the center of gravity of the body. do.
Another object of the present invention is to provide a portable cushion for treating lumbago that can be used anytime and anywhere by allowing air to move inside the cushion and allowing the air to flow in and out. It is to be.

In order to solve the above problems, the invention according to claim 1 is
A cushion made of a non-breathable sheet and capable of enclosing air in a hollow part,
a hollow portion in which air is enclosed when in use;
a fixed part provided at a position corresponding to two bulges of the left and right buttocks and made unable to move air,
The cushion is made by stacking two air-impermeable sheets and then adhering the two sheets together at the outer peripheral portion and the adhering portion. Air is enclosed in the hollow portion during use. By doing so, the thickness of the hollow portion is at least greater than that of the fixing portion, and the cushion is a cushion for treating lumbago.

In addition, the device according to claim 2,
The two non-breathable sheets correspond to the left and right buttocks on the rear side of the body when sitting in alignment with the fixing parts provided at the positions corresponding to the two bulges of the left and right buttocks. The cushion for treating lumbago according to claim 1 is characterized by being formed in a shape having two rear bulges.

In addition, the invention according to claim 3,
The two non-breathable sheets correspond to the left and right thighs on the front side of the body when sitting in alignment with the fixing parts provided at the positions corresponding to the two bulges of the left and right buttocks. The cushion for treating lumbago according to claim 1 or 2, which is formed in a shape having two front bulges.

In addition, the device according to claim 4,
When the user sits in alignment with the two fixing parts provided at positions corresponding to the two bulges of the left and right buttocks, the bulges on the left and right sides of the buttocks are arranged on the respective fixing parts. 4. The cushion for treating lumbago according to any one of claims 1 to 3, which is formed in a substantially circular shape, a substantially concave circular shape, a substantially oval shape, or a substantially polygonal shape. .

In addition, the device according to claim 5,
When the person sits in alignment with the fixed portion provided at one position corresponding to the two bulges of the left and right buttocks, the left and right bulges of the buttocks are arranged on the left and right sides of the fixed portion. 4. The cushion for measures against lumbago according to any one of claims 1 to 3, which is formed in a shape of any one of a substantially circular shape, a substantially oval shape, a substantially gourd shape, and a substantially polygonal shape. do.

In addition, the device according to claim 6,
The portable cushion for treating lumbago according to any one of claims 1 to 5, wherein the cushion is provided with an air inlet/outlet and a plug capable of taking air in and out of the hollow portion and enclosing the air therein. do.

According to the present invention, by moving the air inside the cushion, it is possible to easily maintain and change one's posture. To provide a cushion for measures against lumbago and a portable cushion which enables natural movement in a sitting state by allowing air enclosed in a hollow part to move freely according to the movement of the body.

FIG. 1 shows an example of a preferred form of a portable cushion for treating lumbago according to the present invention, showing a state in which air is removed from a hollow portion, the top being a plan view and the bottom being a cross-sectional view. FIG. 2 is an example of a preferred form of a portable cushion for back pain countermeasures of the present invention, showing a state in which the maximum air capacity is sealed in the hollow portion, the top being a plan view and the bottom being a cross-sectional view. be. FIG. 3 shows an example of a preferred form of a portable cushion for treating back pain according to the present invention, showing a state in which the hollow portion is filled with less air than the maximum air capacity, the top being a plan view and the bottom being a cross-sectional view. is. FIG. 4 is an example of a preferred form of the portable cushion for back pain countermeasures of the present invention, showing a state in which the center of gravity of the body is moved in a state in which the hollow portion is filled with air smaller than the maximum air capacity. , the top is a plan view, and the bottom is a cross-sectional view. FIG. 5 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention. FIG. 6 is a plan view showing another example of the cushion for back pain countermeasures or the portable cushion of the present invention. FIG. 7 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention. FIG. 8 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention. FIG. 9 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention. FIG. 10 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention. FIG. 11 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention. FIG. 12 is a photograph substituting for a drawing, corresponding to a plan view showing a state in which the hollow portion is filled with less air than the maximum air capacity, which is an example of the preferred form of the portable cushion for treating low back pain of the present invention.

A Rear side of the body B Front side of the body 1 Non-air-permeable sheet 2 Peripheral portion 3 Rear bulge 4 Front bulge 5 Hollow portion 6 Attachment portion 7 Air inlet/outlet and plug

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The cushion or portable cushion for back pain countermeasures of the present invention is a cushion which is composed of a non-breathable sheet (1) and can enclose air in a hollow portion (5).

The air-impermeable sheet (1) is used to seal air in the hollow part (5) inside the cushion to keep it from leaking. As a preferable material, a polyvinyl chloride (PVC) resin sheet is adopted as a preferable example, and a sheet having a thickness of about 0.2 to 0.5 mm is desirable.
Other examples of materials for the non-breathable sheet (1) include various synthetic leathers/leathers, soft resins such as polyethylene and polypropylene, and soft rubbers such as ethylene/propylene rubber, silicone rubber, and chlorosulfonated polyethylene rubber. is given.

Moreover, the cushion main body may be a bag-like one integrally formed as a whole. Alternatively, the entirety may be formed into a bag shape, and the open mouth of the bag may be fixed by thermocompression bonding, adhesion, or other methods.
Alternatively, the cushion body may be formed by stacking two non-breathable sheets (1) and fixing the outer peripheral portion (2) by thermocompression bonding, adhesion, or other methods. In this case, the fixing portion (6), which will be described later, can also be made by fixing two sheets by thermocompression bonding, adhesion, or other methods, and has the advantage of being mass-produced at low cost.

Preferred embodiments of the back pain relief cushion or portable cushion of the present invention are described in more detail below.
FIG. 1 is an example of a preferable form of a portable cushion for treating lumbago according to the present invention, showing a state in which air is removed from a hollow portion (5), the top being a plan view and the bottom being a cross-sectional view. . A line connecting the left and right arrows shown in the upper plan view corresponds to the position of the lower cross-sectional view.
Although arrows are omitted in FIGS. 2 to 4, as in FIG. 1, they are cross-sectional views of positions including two fixing portions (6) provided corresponding to the left and right buttocks. there is
In each figure, A indicates the rear side of the body, and B indicates the front side of the body.
FIG. 2 is an example of a preferred form of the portable cushion for back pain countermeasures of the present invention, showing a state in which the maximum air capacity is sealed in the hollow portion (5), the top is a plan view, and the bottom is a plan view. It is a sectional view.
FIG. 3 is an example of a preferred form of the portable cushion for back pain countermeasures of the present invention, showing a state in which air less than the maximum air capacity is enclosed in the hollow portion (5). is a sectional view.
FIG. 4 shows an example of a preferred form of the portable cushion for back pain countermeasures of the present invention, showing a state in which the center of gravity of the body is moved in a state in which the hollow portion (5) is filled with less air than the maximum air capacity. 1 is a plan view on the top and a cross-sectional view on the bottom.
FIG. 12 is an example of a preferred form of the portable cushion for back pain countermeasures of the present invention, showing a state in which the hollow portion (5) is filled with less air than the maximum air capacity, corresponding to the plan view of FIG. It is a drawing substitute photograph.

The back pain relief cushion or portable cushion of the present invention has a size suitable for a person to sit on, and is formed so that the buttocks and part of the thighs are positioned on the cushion. The actual prototype cushion shown in FIG. 12 had a long dimension of about 350 mm, a short dimension of about 300 mm, and a maximum thickness of about 75 mm when air was enclosed.

As an example of a preferred embodiment of the cushion for back pain countermeasures or portable cushion of the present invention, the two non-breathable sheets (1), as shown in FIGS. It is formed in a shape with two rear bulges (3) corresponding to the left and right buttocks on the rear side of the body when the user sits in alignment with the fixing parts (6) provided at corresponding positions. is.
It is formed so that the buttocks are positioned on the cushion when the user is seated, and the air enclosed in the hollow part (5) moves freely according to the movement of the center of gravity of the body. It is designed to facilitate exercise naturally.

Further, as an example of a preferred embodiment of the cushion for back pain countermeasures or the portable cushion of the present invention, the two non-breathable sheets (1) are, as shown in FIGS. It is formed in a shape having two front bulges (4) corresponding to the left and right thighs on the front side of the body when sitting in alignment with the fixing parts (6) provided at positions corresponding to the bulges. It is a thing.
A part of the thigh is positioned on the cushion when the user sits down, and the air enclosed in the hollow portion (5) moves freely according to the movement of the center of gravity of the body. It is designed to make it easier to exercise naturally in a relaxed state.

The cushion or portable cushion for treating lumbago of the present invention has a hollow portion (5) in which the air can freely move around the right and left buttocks when the air is filled with a volume smaller than the maximum air capacity. Since the air can freely move inside the hollow part (5), the pelvis can be moved without putting unnecessary load on the waist.
In this invention, the overall shape and structure have been repeatedly improved, and even though the interior is an air chamber, the air moves inside the cushion, making it easy to maintain and change posture, and the air pressure is balanced. It is designed to support the waist with an exquisite sense of stability.

As shown in FIG. 2, when the hollow portion (5) is filled with the maximum air capacity, the hollow portion (5) is filled with the air so that the cushion is stretched. , it is difficult to move the air freely in the cavity (5).
Therefore, the preferable use condition of the cushion for treating low back pain or the portable cushion of the present invention is to adjust the amount of air as shown in FIG. Air can freely move inside the hollow portion (5). By doing so, the angle of the pelvis to be moved can be changed by adjusting the amount of air in the hollow portion (5). Users can adjust the cushion so that they can exercise comfortably according to the degree of their lower back pain and stiffness.

When the cushion for low back pain countermeasures of the present invention is used as a portable cushion, air is enclosed inside, so that the air can be kept enclosed during use. It is preferable to have a structure in which air can be taken in and out and air can be released when carried.
For this reason, if air is allowed to enter and exit, the cushion is provided with an air inlet and outlet and a plug (7) that allows air to enter, exit, and enclose the hollow portion (5).
The air inlet/outlet and the plug (7) can be those used in simple pillows, vinyl pools, etc., and other various materials, shapes, and structures.
In each drawing, the air inlet/outlet and the plug (7) are shown at visible positions for convenience of illustration, but in practice they may be provided at any other position. It is preferable to provide it at a position that is hard to see and not noticeable, a position that makes it difficult for the plug to come off, and a position that does not affect the cushioning properties or the movement of the body.

Next, the cushion or portable cushion for back pain countermeasures of the present invention is provided at positions corresponding to the two bulges of the left and right buttocks, and is thinner than the hollow portion (5) when air is enclosed, allowing the air to move. It has a disabled attachment (6).
As an example of a preferred embodiment of the cushion for treating low back pain or the portable cushion of the present invention, the fixing portion (6) is positioned corresponding to the two bulges of the left and right buttocks, as shown in FIGS. It is formed in a substantially circular shape so that the left and right bulges of the buttocks are arranged in the respective fixed portions when the user sits in alignment with the fixed portions (6) provided at two places in the body. Alternatively, it may be formed in any one of a substantially concave circular shape, a substantially oval shape, a substantially polygonal shape, and other shapes.
5, 6, and 7 are plan views showing an example of another form of the cushion for back pain countermeasures or portable cushion of the present invention.

8, 9, and 10 are plan views showing an example of another form of the cushion for back pain countermeasures or portable cushion of the present invention.
As an example of another preferred embodiment of the cushion for back pain countermeasures or the portable cushion of the present invention, as shown in FIGS. When sitting in alignment with the fixation part provided in one place corresponding to the bulge, the bulges on the left and right of the buttocks are arranged on the left and right of the fixation part. It is formed in a gourd shape, a substantially polygonal shape, or any other shape.
Here, the approximately gourd shape includes a shape formed by combining two approximately circular shapes into one as shown in FIG. It includes various shapes such as a flat shape, an elliptical or oval shape with a constricted central portion, and a shape with a figure 8 turned sideways.

On the other hand, the shape and size of the back pain countermeasure cushion or portable cushion of the present invention are not limited to those described above, and can be of various shapes, numbers, and sizes.
Furthermore, the shape, number, and size of the fixing portions (6) are not limited to those described above, and various shapes, numbers, and sizes are possible. Three or more fixing portions (6) may be provided.
FIG. 11 is a plan view showing an example of another form of the back pain countermeasure cushion or portable cushion of the present invention.

When the fixed part (6) is formed by superimposing two non-breathable sheets (1) on the cushion body and fixing the outer peripheral part (2) by thermocompression bonding, adhesion, or other methods. In the fixing part, assuming that two sheets are fixed by thermocompression bonding, adhesion, or other methods, the thickness is thinner than the hollow part (5) when air is enclosed, and the air cannot move. All you have to do is
In addition, since the fixed part (6) is thinner than the hollow part (5) when the air is enclosed, it is sufficient that the air cannot be moved. It may be enclosed.

By adopting the above structure, if the cushion or the portable cushion for treating low back pain of the present invention is used, the air enclosed in the hollow part (5) can be freely released according to the movement of the center of gravity of the body when sitting. By moving, it is possible to exercise naturally while sitting.
An example of how to use it will be described.
As shown in FIG. 2, when the hollow portion (5) is filled with the maximum air capacity, the hollow portion (5) is filled with the air so that the cushion is stretched. It is difficult to freely move the air in the hollow part (5), but when it is troublesome or painful to continue to exercise naturally, the air is filled to the maximum in this way and used as a normal cushion. can do.

On the other hand, if you want to exercise naturally while sitting, adjust the amount of air as shown in FIG. 5) By allowing air to move freely inside, the body always feels naturally when sitting in alignment with the fixed parts (6) provided at positions corresponding to the two bulges of the left and right buttocks. Since it moves, you can prevent back pain from staying still in the same position and keep your pelvis and spine healthy.
In addition, as shown in FIG. 4, the center of gravity of the body is shifted to the left and right, and active exercise is adopted by repeating the left and right movements. It is possible to incorporate positive exercise by continuing the state of repeating the spiral rotation of the center of gravity.
An example of a preferable exercise method is to tilt the pelvis (tilt forward/backward/tilt the pelvis to the right/left/rotate the pelvis) without moving the head position. By not moving the head, the center of gravity moves slightly while remaining almost in the center. Due to the structure of the cushion of the present invention, even such a slight movement of the center of gravity increases the range of motion of the pelvis, moves the interlocking spine, and softens (relaxes) the surrounding muscles.
In this way, you can naturally prevent back pain and exercise while sitting and doing other things at any time. Moreover, since it is portable, it can be used anywhere.

The configurations of the cushion for back pain countermeasures and the portable cushion of the present invention have been described above. Now, the measurement results of the physical performance of subjects using the cushion of the present invention for a certain period of time will be described.
Since the spinal column (backbone) is at the center of the body and is involved in all movements, daily exercise of the spinal column is expected to contribute to improvements in flexibility and muscle output.
Therefore, as a research and effect verification test by a physical therapist, the subject was a member of the I high school baseball club in Tokyo as a subject, and the cushion of this invention was installed on a chair and used for 2 weeks.・Physical functions after use were measured.
Tables 1 to 6 below show the results of physical function measurement before and after use of the cushion of the present invention by 33 subjects A to Z and a to g.

Table 1 shows the measurement of the straight leg range of hip joint flexion (Straight Leg Range) as a comparison of body flexibility before and after use.

Table 2 shows the measurement of the interthalamic distance (FFD) as a comparison of the angle at which the leg can be lifted with one knee extended before and after use.

Table 3 shows the measurement of Heel Hip Distance (HHD) as a comparison of the distance between the floor and fingers in a standing position before and after use.

Table 4 shows the measurements of the distance between the heel and the buttocks with one knee bent in the prone state, before and after use, and the measurement of the Middle finger Distance between the middle fingers.

Table 5 compares the distance between the fingertips of the left and right middle fingers when the fingers of both hands are approached obliquely from above and below on the back in a standing position as a comparison before and after use. be.

Table 6 shows the measured internal and external rotation angles of the hip joints before and after use when the hip joints are flexed in the supine position.

In any of the measurement results shown in Tables 1 to 6, when the cushion of the invention developed this time was placed on a chair and used for 2 weeks, the change in the numerical value measured before and after use was , As a result of statistical processing of these figures, significant changes were seen from the viewpoint of improvement in physical performance.
From the results of using the cushion and portable cushion of this invention for a certain period of time, it is expected that daily exercise of the spine will contribute to improvement of flexibility and muscle output, etc., and is also expected to be effective as a countermeasure against back pain. It can be said that it is supported to some extent that the present invention can be done, and these are due to the action different from the above-described conventional invention.

As explained in detail above, according to the present invention, the overall shape and structure have been repeatedly improved to provide a cushion with a simple structure that allows the pelvis to be moved without applying unnecessary load to the waist. It is possible to provide a cushion for preventing or improving lumbago by loosening the stiffened body and preventing the stiffening of the body.
In particular, by making the inside of the cushion one air chamber and moving the air inside the cushion, it is possible to easily maintain and change one's posture. In addition, it is possible to provide a cushion for preventing lumbago, which allows the user to exercise naturally in a sitting state by allowing the air enclosed in the hollow part to move freely according to the movement of the center of gravity of the body.
As a result, it is possible to exercise comfortably while sitting down anytime and anywhere, and effects such as prevention and improvement of lumbago and improvement of physical ability can be obtained simply by sitting.
Further, according to the present invention, there is provided a portable cushion for treating lumbago that can be used anytime and anywhere by allowing air to move inside the cushion and allowing the air to flow in and out. can be done.
Furthermore, by adopting the preferred form of the present invention, it becomes possible to inexpensively manufacture and provide a large number of portable cushions for relieving lumbago of the present invention.

Claims (6)

A cushion made of a non-breathable sheet and capable of enclosing air in a hollow part,
a hollow portion in which air is enclosed when in use;
a fixed part provided at a position corresponding to two bulges of the left and right buttocks and made unable to move air,
The cushion is made by stacking two air-impermeable sheets and then adhering the two sheets together at the outer peripheral portion and the adhering portion. Air is enclosed in the hollow portion during use. By doing so, the thickness of the hollow portion is at least greater than that of the fixing portion, and the cushion for measures against lumbago. The two non-breathable sheets correspond to the left and right buttocks on the rear side of the body when sitting in alignment with the fixing parts provided at the positions corresponding to the two bulges of the left and right buttocks. 2. The cushion for treating low back pain according to claim 1, wherein the cushion is formed in a shape having two rear bulges. The two non-breathable sheets correspond to the left and right thighs on the front side of the body when sitting in alignment with the fixing parts provided at the positions corresponding to the two bulges of the left and right buttocks. 3. The cushion for treating lumbago according to claim 1 or 2, wherein the cushion is formed in a shape having two forward bulges. When the user sits in alignment with the two fixing parts provided at positions corresponding to the two bulges of the left and right buttocks, the bulges on the left and right sides of the buttocks are arranged on the respective fixing parts. 4. The cushion for treating lumbago according to any one of claims 1 to 3, wherein the cushion is formed in any one of a substantially circular shape, a substantially concave circular shape, a substantially oval shape, and a substantially polygonal shape. When the person sits in alignment with the fixed portion provided at one position corresponding to the two bulges of the left and right buttocks, the left and right bulges of the buttocks are arranged on the left and right sides of the fixed portion. 4. The cushion for treating lumbago according to any one of claims 1 to 3, characterized in that the cushion is formed in any one of a roughly circular shape, a roughly oval shape, a roughly gourd shape, and a roughly polygonal shape. The cushion according to any one of claims 1 to 5, characterized in that the cushion is provided with an air inlet/outlet and a plug capable of taking air in and out of the hollow portion and enclosing the air therein, and is made portable by extracting the air when not in use. A portable cushion for measures against lumbago according to any one of the above.

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