CUSHION SYSTEM PROVIDING ENHANCED CUSHIONING FUNCTION AND AERATION TECHNICAL FIELD The present invention relates, in general, to cushion systems and, more particularly, to a cushion system, designed to slowly and uniformly absorb external load, thus effectively distributing the load in its body, and slowly and smoothly restore its original shape when the external load is removed from the body, thus performing an effective shock absorbing action, and have air pockets in its interior so as to accomplish a desired ventilating effect.

The cushion system of this invention is not limited in its use to a specific application, but is widely and preferably used for a variety of applications, such as medical, leisure, domestic or various industrial applications, and is effectively recycled when necessary.

BACKGROUND ART As well known to those skilled in the art, each of conventional cushion systems, used as a variety of cushioning members, such as seats of chairs or bed mattresses, typically includes a thick sponge or strong springs therein, and is covered with a thick fabric cover.

However, such conventional cushion systems are designed to quickly absorb and distribute external load, quickly restore their original shapes when external load is removed from them, and have a large elastic deformation. The conventional cushion systems thus sometimes fail to provide desired convenience or desired operational stability to users or to furniture fabricated with such cushion systems. In addition, since the conventional cushion

systems are covered with thick fabric covers, it is almost impossible to provide a desired ventilating effect at the contact areas of the cushion systems and users.

Particularly during the summer season, such conventional cushion systems thus make users to be wet by perspiration at the parts of users'bodies, which are in contact with the fabric covers of the cushion systems.

In an effort to solve the problems experienced in the conventional cushion systems, thick fabric covers having several ventilating holes have been proposed to cover the cushion systems. However, such perforated fabric covers do not accomplish a desired ventilating effect of cushion systems since users inevitably seal the ventilating holes when they sit on the cushion systems.

It is thus evident that the conventional cushion systems only provide a low cushioning effect, and reduce pleasantness of users lying or sitting on cushion systems due to bad ventilation at the contact areas of the users and the cushion systems.

In addition, the fabric covers of the conventional cushion systems absorb sweat secreted from the skins of users, and become wet, thus gathering mold. The cushion systems are thus bad for users'health.

Another problem of the conventional cushion systems resides in that the sponge and fabric covers cannot be recycled, thus causing environmental pollution as well as excessive consumption of natural resources.

DISCLOSURE OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a cushion system, which has an enhanced and stable cushioning

function, and improves its ventilating effect at the contact area of a user and the cushion system by forming air pockets in its interior, and which is made of a recyclable material suitable for reducing environmental pollution as well as saving natural resources.

In order to accomplish the above object, the present invention provides a cushion system providing an enhanced cushioning function and ventilating effect, comprising: a plurality of X-axial modules each consisting of a plurality of first elastic units linearly and integrally arranged in an X-axial direction; a plurality of Y-axial modules cross-linked with the X-axial modules to form a cushion assembly having air pockets, and each consisting of a plurality of second elastic units linearly and integrally arranged in a Y-axial direction; and upper and lower covers respectively positioned at the top and bottom of the cushion assembly fabricated by cross-linking the X-axial and Y-axial modules, thus fixing the cross-linked X-axial and Y-axial modules in the cushion assembly.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which: Fig. 1 is a perspective view of a cushion system providing an enhanced cushioning function and ventilating effect in accordance with the primary embodiment of the present invention; Fig. 2 is a perspective view of an X-axial module included in the cushion system according to the primary embodiment of the present invention;

Fig. 3 is a perspective view of a Y-axial module included in the cushion system according to the primary embodiment of the present invention; Fig. 4 is a plan view of an upper cover included in the cushion system according to the primary embodiment of the present invention ; Fig. 5 is a sectional view of the upper cover taken along the line A-A of Fig. 4; Fig. 6 is a plan view of a lower cover included in the cushion system according to the primary embodiment of the present invention; Fig. 7 is a sectional view of the lower cover taken along the line B-B of Fig. 6; Fig. 8 is a sectional view, showing the assembled structure of the cushion system according to the primary embodiment of the present invention; Fig. 9 is a perspective view of a cushion system providing an enhanced cushioning function and ventilating effect in accordance with the second embodiment of the present invention; Fig. 10 is a perspective view of a Y-axial module included in the cushion system of Fig. 9; Fig. 11 is a sectional view, showing the assembled structure of the cushion system according to the second embodiment of the present invention, consisting of a cushion assembly fabricated with the Y-axial modules of Fig. 10 ; Fig. 12 is a sectional view, showing an elastic deformation of the cushion system according to the primary embodiment of the present invention when the system is loaded with weight on its upper surface; and

Fig. 13 is a sectional view, showing an elastic deformation of the cushion system according to the embodiment of the present invention when the system is loaded with weight on its upper weight.

BEST MODE FOR CARRYING OUT THE INVENTION Reference should now be made to the drawings, in which the same reference numerals are used throughout the different drawings to designate the same or similar components.

Figs. 1 to 8 show a cushion system providing enhanced cushioning function and ventilating effect in accordance with the primary embodiment of the present invention. As shown in the drawings, the cushion system according to the primary embodiment of this invention comprises a plurality of X-axial modules 100 each having air pockets therein and consisting of a plurality of first elastic units linearly and integrally arranged in a direction. A plurality of Y- axial modules 200, each having air pockets therein and consisting of a plurality of second elastic units linearly and integrally arranged in a direction, are cross- linked with the X-axial modules 100 to form a cushion assembly. Upper and lower covers 300 and 350 are respectively positioned at the top and bottom of the cushion assembly fabricated by cross-linlcing the X-axial modules 300 and the Y- axial modules 350, thus fixing the cross-linked X-axial and Y-axial modules 300 and 350 in the cushion assembly.

In a detailed description of the X-axial modules 100 with reference to Fig. 2, each of the X-axial modules 100 consists of a desired number of first elastic units, which are linearly and integrally arranged in a direction. Each of the first elastic units includes an X-axial upper plate 112, which has a first

central hole 110 and is horizontally positioned in the first elastic unit. An X- axial lower plate 122, having a second central hole 120 corresponding to the first central hole 110 of the X-axial upper plate 112, is arranged under the X-axial upper plate 112 while being parallel to and concentric with the X-axial upper plate 112. An X-axial upper concave rib 114 integrally extends outward from each side end of the X-axial upper plate 112 while having a concave shape. The first elastic unit also includes an X-axial lower convex rib 124, which integrally extends outward from each side end of the X-axial lower plate 122 and is integrated with the X-axial upper concave rib 114 at their concave bottom and convex top. The above-mentioned first elastic units are linearly and integrally arranged in an X-axial direction to form a desired X-axial module 100.

In each of the X-axial modules 100, the X-axial upper plate 112 preferably has an oval plate shape, with the first central hole 110 formed at the center of the plate 112. A first annular seat 116 is concentrically formed along the lower edge of the first central hole 110. The X-axial lower plate 122 preferably has an oval plate shape, and is arranged to be concentric with the X- axial upper plate 112, with the second central hole 120 formed at the center of the plate 122. A second annular seat 126 is concentrically formed along the upper edge of the second central hole 120. In each of the X-axial modules 100, a plurality of X-axial upper plates 112 and a plurality of X-axial lower plates 122 are linearly arranged along the top and bottom of the module 100, respectively, such that the X-axial upper plates 112 and X-axial lower plates 122 are parallel to and concentric with each other.

In each of the X-axial modules 100, the X-axial upper concave rib 114 integrally extends between two neighboring X-axial upper plates 112 while forming a downwardly concave arc-shaped profile. The X-axial lower convex

rib 124 integrally extends between two neighboring X-axial lower plates 122 while forming an upward convex arc-shaped profile. The X-axial upper concave ribs 114 are integrated with the X-axial lower convex ribs 124 into a single structure at their concave bottoms and convex tops.

In a brief description, each of the X-axial modules 100 is produced by linearly and integrally arranging a desired number of first elastic units, each consisting of an X-axial upper plate 112, an X-axial lower plate 122, an X-axial upper concave rib 114 and an X-axial lower convex rib 124, in a direction (X- axial direction) as described above.

In each end of each X-axial module 100, a first side concave rib 118 integrally extends between the outermost upper and lower plates 112 and 122 while forming an inwardly concave arc-shaped profile.

The Y-axial modules 200 are cross-linked with the X-axial modules 100 at right angles to form a desired cushion assembly. The construction of each of the Y-axial modules 200 will be described herein below with reference to Fig. 3.

As shown in the drawing, each of the Y-axial modules 200 consists of a plurality of second elastic units linearly and integrally arranged in a direction. Each of the second elastic units includes a Y-axial upper plate 212 having a third central hole 210, and a Y-axial lower plate 222 having a fourth central hole 220 and arranged under the Y-axial upper plate 212 while being parallel to and concentric with the Y-axial upper plate 212. A Y-axial upper concave rib 214 integrally extends outward from each side end of the Y-axial upper plate 212 while having a concave shape. A Y-axial lower convex rib 224 integrally extends outward from each side end of the Y-axial lower plate 222 while having a convex shape. A ring 230 is interposed between the Y-axial upper concave rib 214 and the Y-axial lower convex rib 224. A disc 240 is horizontally and centrally positioned

between two neighboring rings 230 such that the disc 240 is interposed between the Y-axial upper plate 212 and the Y-axial lower plate 222 while being parallel to and concentric with the Y-axial upper and lower plates 212 and 222, with a projection 250 formed on each of the upper and lower surfaces of the disc 240.

The above-mentioned second elastic units are linearly and integrally arranged in a Y-axial direction to form a desired Y-axial module 200.

In each of the Y-axial modules 200, the Y-axial upper plate 212 preferably has a circular plate shape, with the third central hole 210 formed at the center of the plate 212. A first rim 216 is formed along the lower edge of the third central hole 210. This first rim 216 is completely seated on the first annular seat 116 of the X-axial upper plate 112 when cross-linking the two types of modules 100 and 200 together. The Y-axial lower plate 222 preferably has a circular plate shape, and is arranged to be concentric with the Y-axial upper plate 212, with the fourth central hole 220 formed at the center of the plate 222 so as to be aligned with the third central hole 210 of the Y-axial upper plate 212.

A second rim 226 is formed along the upper edge of the fourth central hole 220.

This second rim 226 is completely seated on the second annular seat 126 of the X-axial lower plate 122 when cross-linking the two types of modules 100 and 200. In each of the Y-axial modules 200, a plurality of Y-axial upper plates 212 and a plurality of Y-axial lower plates 222 are linearly arranged along the top and bottom of the module 200, respectively, such that the Y-axial upper plates 212 and Y-axial lower plates 222 are parallel to and concentric with each other.

In each of the Y-axial modules 200, the Y-axial upper concave rib 214 integrally extends between two neighboring Y-axial upper plates 212 while forming a downwardly concave arc-shaped profile. The Y-axial lower convex rib 224 integrally extends between two neighboring Y-axial lower plates 222

while forming an upward convex arc-shaped profile.

The Y-axial upper concave ribs 214 are integrated with the Y-axial lower convex ribs 224 into a single structure at their concave bottoms and convex tops through the rings 230 each interposed between the two types of ribs 214 and 224.

The discs 240 are each horizontally and centrally positioned between two neighboring rings 230 such that the disc 240 is interposed between the Y-axial upper plate 212 and the Y-axial lower plate 222 while being parallel to and concentric with the Y-axial upper and lower plates 212 and 222. Such discs 240 thus maintain a desired gap between the rings 230.

The projection 250 is vertically formed on each of the upper and lower surfaces of the disc 240. When a desired number of X-axial modules 100 are cross-linked with a desired number of Y-axial modules 200 to form a desired cushion assembly, the projections 250 formed on the upper surfaces of the discs 240 are respectively inserted into the second central holes 120 of the X-axial lower plates 122. In such a case, the projections 250 formed on the lower surfaces of the discs 240 are respectively inserted into the first central holes 110 of the X-axial upper plates 112.

Therefore, each Y-axial module 200 is divided into two sections, that is, upper and lower sections, each having a plurality of cells. The upper and lower sections are defined between the upper plates 212 and the discs 240 and between the discs 240 and the lower plates 222, respectively. When cross-liking the X- axial modules 100 and the Y-axial modules 200 at right angles to form a desired cushion assembly, the two types of modules 100 and 200 cross each other in the cells of the upper and lower sections of the Y-axial modules 200.

The upper cover 300, which covers the top of the cushion assembly fabricated by cross-linking the X-axial modules 100 and the Y-axial modules 200,

is constructed as follows: As shown in Figs. 4 and 5, the upper cover 300 has an upper grid 310, which is seated on the top of the cushion assembly, with a plurality of hemispherical embossments 312 formed on the upper surface of the pper grid 310 in a regularly-spaced pattern. A plurality of upper fitting members 314, each having radial elasticity and being wedge-shaped, are formed on the lower surface of the upper grid 310.

As described above, the grid 310 of the upper cover 300 covers the top of the cushion assembly fabricated by cross-linking the X-axial modules 100 and the Y-axial modules 200. This grid 310 preferably consists of a plurality of latticed walls, which continuously extend in two diagonal directions at an angle of 45° relative to both the X-axial direction along which the X-axial modules 100 are arranged in the cushion assembly, and the Y-axial direction along which the Y- axial modules 200 are arranged.

The hemispherical embossments 312 are regularly formed on the upper surface of the grid 310. In the present invention, it is preferred to form the embossments 312 at the intersections of the latticed walls of the grid 310.

Each of the upper fitting members 314, formed on the lower surface of the grid 310, is a single body consisting of a central rod 316 and a plurality of elastic legs 318. The elastic legs 318 are positioned around the central rod 316 while being regularly spaced from the rod 316, and each have an arrow-shaped axial cross-section.

The upper fitting members 314 must be designed such that the legs 318 are elastically closed and opened in a radial direction at their lower parts when the fitting members 314 are inserted into and locked to the central holes 110 and 210 of the X-axial and Y-axial upper plates 112 and 212 during a process of covering the cushion assembly with the upper cover 300. It is thus necessary to

produce the upper fitting members 314 including the legs 318 using an elastic material, for example, low-density polyester.

The lower cover 350, which covers the bottom of the cushion assembly fabricated by cross-linking the X-axial modules 100 and the Y-axial modules 200, is constructed as follows: As shown in Figs. 6 and 7, the lower cover 350 comprises a lower grid 360, which is seated on the bottom of the cushion assembly such that the grid 360 is parallel to the upper cover 300. A plurality of lower fitting members 364, having radial elasticity and being wedge-shaped, are formed on the upper surface of the lower grid 360.

In the same manner as that described for the grid 310 of the upper cover 300, the lower grid 360 of the lower cover 350 preferably consists of a plurality of latticed walls, which continuously extend in two diagonal directions at an angle of 45° relative to both the X-axial direction along which the X-axial modules 100 are arranged in the cushion assembly, and the Y-axial direction along which the Y- axial modules 200 are arranged.

In addition, each of the lower fitting members 364, formed on the upper surface of the lower grid 360, is a single body consisting of a central rod 366 and a plurality of elastic legs 368. The elastic legs 368 are positioned around the central rod 366 while being regularly spaced from the rod 366, and each have an arrow-shaped axial cross-section.

In the same manner as that described for the upper fitting members 314 of the upper cover 300, the lower fitting members 364 of the lower cover 350 must be designed such that the legs 368 are elastically closed and opened in a radial direction at their upper parts when the fitting members 364 are inserted into and locked to the central holes 120 and 220 of the X-axial and Y-axial lower plates 122 and 222 during the process of covering the cushion assembly

with the lower cover 350. It is thus necessary to produce the lower fitting members 364 including the legs 368 using an elastic material, for example, low- density polyester.

Fig. 9 is a view, showing the appearance of a cushion system providing an enhanced cushioning function and ventilating effect in accordance with the second embodiment of the present invention. In the cushion system according to this second embodiment, the construction of the X-axial modules, upper cover, and lower cover remains the same as that described for the primary embodiment, but each Y-axial module 400 of this second embodiment is changed in its construction from the Y-axial modules 200 of the primary embodiment, as shown in Fig. 10.

In a detailed description with reference to Figs. 10 and 11, each of the Y-axial modules 400 consists of a plurality of third elastic units linearly and integrally arranged in a direction. Each of the third elastic units includes a Y- axial upper plate 412 having a fifth central hole 410. A Y-axial lower plate 422 having a sixth central hole 420 is arranged under the Y-axial upper plate 412 while being parallel to and concentric with the Y-axial upper plate 412. A Y- axial upper concave rib 414 integrally extends outward from each side end of the Y-axial upper plate 412 while having a concave shape. A Y-axial lower convex rib 424 integrally extends outward from each side end of the Y-axial lower plate 422 while having a convex shape, and is integrated with the Y-axial upper concave rib 414 at the concave bottom of the Y-axial upper concave rib 414 and the convex top of the Y-axial lower convex rib 424. The above-mentioned third elastic units are linearly and integrally arranged in a Y-axial direction to form a desired Y-axial module 400.

In each of the Y-axial modules 400, the Y-axial upper plate 412

preferably has a circular shape, with the fifth central hole 410 formed at the center of the plate 412. A third rim 416 is formed along the lower edge of the fifth central hole 410. This third rim 416 is completely seated on the first annular seat 116 of the X-axial upper plate 112 when cross-linking the two types of modules 100 and 400 together. The Y-axial lower plate 422 preferably has a circular shape, and is arranged to be concentric with the Y-axial upper plate 412, with the sixth central hole 420 formed at the center of the plate 422 so as to be aligned with the fifth central hole 410 of the Y-axial upper plate 412. A fourth rim 426 is formed along the upper edge of the sixth central hole 420. This fourth rim 426 is completely seated on the second annular seat 126 of the X- axial lower plate 122 when cross-linking the two types of modules 100 and 200.

In each of the Y-axial modules 400, a plurality of Y-axial upper plates 412 and a plurality of Y-axial lower plates 422 are linearly arranged along the top and bottom of the module 400, respectively, such that the Y-axial upper plates 412 and Y-axial lower plates 422 are parallel to and concentric with each other.

In each of the Y-axial modules 400, the Y-axial upper concave rib 414 integrally extends between two neighboring Y-axial upper plates 412 while forming a downwardly concave arc-shaped profile. The Y-axial lower convex rib 424 integrally extends between two neighboring Y-axial lower plates 422 while forming an upward convex arc-shaped profile. The Y-axial upper concave ribs 414 are directly integrated with the Y-axial lower convex ribs 424 into a single structure at their concave bottoms and convex tops, different from the primary embodiment.

In a brief description, each of the Y-axial modules 400 is produced by linearly and integrally arranging a desired number of third elastic units, each consisting of a Y-axial upper plate 412, a Y-axial lower plate 422, a Y-axial

upper concave rib 414, and a Y-axial lower convex rib 424, in a direction (Y-axial direction) as described above.

Two cushion systems, produced according to the primary and second embodiments of this invention, were subjected to several tests as follows, so as to measure their cushioning effects.

The X-axial modules, Y-axial modules, upper cover and lower cover of the cushion systems used in the tests were produced using low-density polyethylene, and each had an elastic modulus of 3.3 kgf/mm2, a Poisson's ratio of 0.4, a mass density of 0.915, a yield strength of 0.9 kgf/mm2, and a tensile strength of 1.0 kgf/mm2.

In the cushion systems used in the tests, the upper and lower covers were modeled as thin elements, and the X-axial and Y-axial modules were modeled as continuous bodies.

The first cushion system, which was produced according to the primary embodiment of this invention and subjected to tests, had a height of 76 mm.

The upper plate of each of the two types of modules was set to 2 mm in its thickness. The regular interval between the upper plates of the modules was set to 50 mm. This first cushion system also had a radius of curvature of 16.5 mm at the ribs, and a cross-sectional area of 12 mm x 3 mm at each elastic unit.

When 80 kgf/mm2 was uniformly loaded on the upper surface of the cushion system according to the primary embodiment in order to measure the cushioning effect of the system, the measured maximum elastic deformation of the system was 23.4 mm.

In accordance with the observed results, the cushion system according to the primary embodiment of this invention was not excessively deformed, and not buckled as shown in Fig. 12, and so the system was judged as providing a desired

cushion effect without structural failure.

The second cushion system, which was produced according to the second embodiment of this invention and subjected to testing, had a height of 29 mm. The upper plate of each of the two types of modules was set to 4 mm in its thickness. The regular interval between the upper plates of the modules was set to 75 mm. This second cushion system also had a cross-sectional area of 12 mm x 5 mm at each elastic unit.

When 80 kgf/mm2 was uniformly loaded on the upper surface of the cushion system according to the second embodiment in order to measure the cushioning effect of the system, the measured maximum elastic deformation of the system was 13.3 mm.

In accordance with the observed results, the cushion system according to the second embodiment of this invention was not excessively deformed, and not buckled as shown in Fig. 13, and so the system was judged as providing a desired cushion effect without structural failure.

Of course, it should be understood that the above-mentioned data and dimensions only apply to the two cushion systems produced for measuring the cushioning effects of the systems according to the present invention, and so the cushion systems of this invention may be somewhat freely changed in their kinds of material, shapes, sizes, etc. , in accordance with a required cushioning effect without affecting the functioning of this invention.

The operational effect of the cushion system according to the present invention will be described herein below.

When a user sits or lies on the upper surface of the cushion system of this invention, weight of the user is primarily applied to the upper cover 300, and secondarily transmitted downward to the cross-linked X-axial and Y-axial

modules 100 and 200 (400) fixed to the upper cover 300.

In such a case, the load of a user's weight applied to the cross-linked X- axial and Y-axial modules 100 and 200 (400) is not further transferred downward since the lower surface of the cushion system is supported on a hard support surface, such as the support panel of a bed or a floor, at the lower cover 350.

Therefore, the load, applied to the cross-linked X-axial and Y-axial modules 100 and 200 (400), is dispersed horizontally in the modules 100 and 200 (400), thus expanding the modules 100 and 200 (400) in horizontal directions.

The modules 100 and 200 (400) thus effectively absorb the load, transmitted from the upper cover 350 thereto, while expanding in horizontal directions.

In such a case, the load, applied to the cross-linked X-axial and Y-axial modules 100 and 200 (400), is effectively, slowly and smoothly distributed to the modules 100 and 200 (400) in vertical directions and horizontal directions so as to be effectively, slowly and smoothly absorbed by the modules 100 and 200 (400).

The cushion system of this invention thus provides a desired high cushioning effect without causing a quick or large elastic deformation of the cross-linked X- axial and Y-axial modules 100 and 200 (400).

When a load is applied upward to the cushion system of this invention from the lower surface of the system with a user sitting or lying on the upper surface of the system, the load is primarily applied to the lower cover 350, and secondarily transmitted upward to the cross-linked X-axial and Y-axial modules 100 and 200 (400) fixed to the lower cover 350.

The load is, thereafter, transmitted to the upper cover 300 from the cross- linked X-axial and Y-axial modules 100 and 200 (400). However, the load is not further transferred upward from the upper cover 300 since the upwardly acting

load encounters the downwardly acting load of the weight of the user sitting or lying on the upper surface of the system.

Therefore, the load, applied upward to the cross-linked X-axial and Y- axial modules 100 and 200 (400), is dispersed horizontally in the modules 100 and 200 (400), thus expanding the modules 100 and 200 (400) in horizontal directions.

The modules 100 and 200 (400) thus effectively absorb the load while being changed in their heights and expanding in horizontal directions.

In the cushion system of this invention, a plurality of air pockets are defined between the cross-linked X-axial and Y-axial modules 100 and 200 (400), and effectively circulate fresh air in the cushion system.

The fresh air, circulating through the air pockets of the cushion system, effectively ventilates the contact areas of the cushion system and users, thus accomplishing a desired heat exchanging effect and providing a desired ventilating effect at the contact areas of the cushion system and the users. The cushion system of this invention thus gives pleasantness to users lying or sitting on the cushion system.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

INDUSTRIAL APPLICABILITY As described above, the present invention provides a cushion system providing an enhanced cushioning function and ventilating effect. In this

cushion system, a plurality of X-axial modules 100 and a plurality of Y-axial modules 200 (400) are appropriately cross-linked with each other to form a cushion assembly, which provides an enhanced cushioning function and forms air pockets therein. The air pockets, defined between the cross-linked X-axial and Y-axial modules of the cushion assembly, effectively circulate fresh air in the cushion system. The fresh air, circulating through the air pockets, effectively ventilates the contact areas of the cushion system and users, thus giving pleasantness to the users lying or sitting on the cushion system.

Due to the enhanced ventilating effect, the cushion system effectively and quickly removes sweat from the contact areas of the cushion system and the users, and so the cushion system maintains its dry state, and is less likely to gather mold. This cushion system is thus good for users'health.

The cushion system of this invention is produced using a low-density plastic material, such as polyethylene, which is capable of being recycled, and so the system reduces environmental pollution as well as saving natural resources.

The hemispherical embossments formed on the upper surface of this cushion system osteopathically press the muscles of users lying or sitting on the system at the contact areas of the cushion system and the users. This cushion system thus promotes users'health.

The cushion system of this invention is thus preferably used for a variety of applications, such as medical, leisure, domestic or various industrial applications.