KR102345411B1 - Seasonal adaptive mattress structure - Google Patents

Abstract

The present invention is a bedding mat technology that maintains cleanliness and comfort by circulating air inside according to the seasons. The bed mattress structure includes a mattress and an outer skin surrounding the upper surface portion and the side portion of the mattress. Here, the outer skin has a ventilation structure to allow external air to communicate between the upper surface portion and the side surface portion, and the upper surface portion is a surface corresponding to the human body.

Description

Seasonal adaptive mattress structure

The present invention is a bedding mat technology that maintains cleanliness and comfort by circulating air inside the mattress according to the seasons. It is characterized in that the cooling and heating effect experienced by the human body is different according to the opening and closing of the air passages of the upper and side parts.

Bedding has been originally used to secure a certain cushion from the floor or to preserve warmth. It is mainly used as an auxiliary cushion on a bed, such as a bed, or for warmth on the floor, such as an ondol, to improve the comfort and comfort of sleeping. It is used in the form of wrapping the top. However, on the contrary, there are 3D mesh mats in the form of meshes that are used in summer to provide comfort that prevents sweat and moisture.

Bed mats are mainly manufactured in the form of placing a coil spring in the form of an offset or pocket in the frame of a rectangular metal frame, making it the basic bed frame, and then overlaying a cushion material and a supplement cover on the outer surface. Here, the cushioning material is a member for improving the comfort and is made of a sponge foam type material that gently assists the elasticity of the spring.

In the present invention, a hard skeleton such as a metal spring is referred to as a hard skeleton, and an outer peripheral frame made of mainly cloth material for accommodating a cushioning material and a supplement on its outer surface is referred to as a soft skeleton.

Cushioning material is a material that provides comfort on the bed and is mainly manufactured using a sponge foamed with synthetic resin, etc. or latex or fiber foamed with natural rubber. These cushion materials are easy to control physical properties, so density, hardness, and rebound cushioning feeling can be freely modified. The cover will act as an envelope in the form of a supplement to block the wind.

Just as common bedding consists of duvets and futons, such mats have a thermal insulation function, so it is common to see unwanted perspiration when people fall asleep on them in hot summer days. In particular, since the sponge acts as an insulator with the floor, when the synthetic action of the filler and the sponge occurs, even if the floor is cool, the person on the mat feels the heat because the warmth from the human body cannot be radiated to the outside. Even when a fan or air conditioner is used, air cannot communicate through the floor, so the temperature difference between the mat on the lower side that comes into contact with the skin and the upper atmospheric layer where the air comes into contact may become large.

The 3D mesh type mat consists of a fabric plate made of warp and weft yarns as an upper plate and a lower plate, and is a three-dimensional fabric type that shows elasticity and breathability by connecting the upper plate and the lower plate using a connecting thread to maintain a constant distance between the two plates. It is a cushion material. In summer, if you put these 3D mesh mats on top of bedding, the heat is improved to some extent, but 3D mesh mats for effective air circulation require a certain volume. There is this. In addition, in the case of using a 3D mat, when sleeping for a long time with the air conditioner or fan turned on, the temperature may drop excessively due to three-dimensional air circulation, which may cause air conditioning disease. There is this. In other words, it is not possible to keep warm on the mesh-type mat while sleeping.

On the other hand, on a bed using a mattress, the duvet often falls or turns over due to tossing and turning while sleeping at night. It is very inconvenient to straighten an overturned duvet or pull up a spilled duvet to cover it in the dark at night.

In short, a mattress cover for a bed made of general supplementary material is suitable for winter, but it has a drawback in that it cannot cool the sweat on the part in contact with the bedding in summer. On the other hand, the 3D mesh type mat is beneficial in hot summer, but it is not suitable for use as a warming function in winter. There is an inconvenience of having to remove the mesh mat and store it separately. In particular, since it is not possible to take action on the mat while sleeping, the 3D mat in a fixed form entails some inconvenience.

The present invention is an invention that was conceived to be used as a single mat for summer or winter in consideration of the resolution of these problems and the need for convenience, and further extended the mattress structure to fixing the duvet.

Korean Patent Application No. 10-2016-0078303 (June 22, 2016)

A first object of the present invention is to provide a technical means for use while controlling coolness for summer and warmth for winter.

A second object of the present invention is to provide a technical means for switching between the ventilation cover function and the heat insulation cover function in the sleeping state of a person on the mat, and to provide a convenient means for preventing the duvet from falling on the bed .

The present invention for the above purpose,

“The outer frame that makes up the shape of the mattress;

The upper part constituting the upper part of the mattress;

The lower part constituting the lower part of the mattress;

Cushion unit constituting the cushion member of the mattress;

Outer skin covering the mattress cushion unit;

In the cushion part, ventilation parts are formed at regular intervals and sizes,

The outer skin is composed of a ventilation member for controlling the communication of air in the upper end and the side portion, the upper end and the side portion bed mattress, characterized in that it comprises a configuration that can selectively attach and detach a member for suppressing the flow of air. ” begins.

Here, the outer frame includes a hard skeleton made of a metallic spring and a frame, the frame has a soft skeleton that can detach the outer skin, and the soft skeleton has a cover detachable means made of a zipper or the like.

In addition, the upper surface portion; and a side part; the cushion part on which the ventilation part is formed is built-in, and the ventilation part may be manufactured by punching a hole in the sponge foam.

In addition, the outer skin constitutes a first outer skin layer part covering the outside of the cushion part with a mesh-shaped member and a second outer skin layer part covering the outer surface of the first outer skin layer part with a closed member, wherein the first outer skin layer part or the second outer skin layer part At least one of the parts may include a configuration detachable from the soft skeleton.

When the second outer skin layer part is removed from the soft skeleton part, it may include a configuration so that the amount can be selectively adjusted and opened by a certain area of the upper or lower part.

In the ventilation part attached to the side part, the air inlet to the ventilation part automatically opens by the force applied by wind from a fan, etc., and automatically closes if no wind force is applied. can do.

The ventilation part attached to the side part may include a configuration that is automatically opened or closed by the temperature and the weight of a person.

At least one of the corners of the mattress positioned on the upper surface of the soft skeleton to the mattress may further include a configuration for adding a means for fixing the quilt.

According to the present invention,

One mat can be used for cool in summer and warm in winter, but when the sensible temperature changes during sleep, the air circulation under the bed can be blocked and controlled without waking up the person sleeping in the bed. Through these functions, the present invention has the effect that it can be used as a bed mattress that is conveniently used by adapting to the four seasons of spring, summer, autumn, and winter.

Furthermore, if you use the fan's wind and the opening/closing control action of the side ventilation part, you can get the effect of blowing wind into the mattress when you need it and blocking the entrance when you don't need it, just with the timer of a regular fan without adding any structural means. .

The side ventilation part of the present invention not only provides coolness in summer, but also provides air communication inside the bedding by pumping when a person lies down or gets up at any time of the year, so it removes moisture inside the mattress to remove harmful insects such as mites inside the bed The effect of suppressing the form can be obtained. In addition, if you put incense materials inside the mattress, you can get the effect of pumping out the scent every time a person wakes up.

In addition, according to the present invention, the blanket does not flow down from the bed even when tossing and turning during sleep.

1 is a perspective view and a side cross-sectional view showing a conventional bed mattress structure.
2 to 5 are perspective and side cross-sectional views, respectively, showing an example used while controlling the entire or partial for air circulation or heat preservation.
6 is a side cross-sectional view illustrating a state in which an air passage is formed inside the mattress structure while disassembling the hard skeleton and the soft skeleton of the present invention.
7 is a side cross-sectional view showing a structure in which a cushion member having an air vent, a mesh member, and a heat insulating member are sequentially arranged on the base of the hard skeleton constituting the mattress structure and the soft skeleton surrounding it.
8 to 10 are side cross-sectional views showing an example of the use of a mattress structure that can be used while adapting to the seasons for summer, spring, autumn and winter.
11 is a cross-sectional view showing a configuration additionally applied to the present invention, showing the action of opening the ventilation unit in the wind of the fan.
12 and 13 are cross-sectional views illustrating an embodiment in which the detachable means to be attached to the soft skeleton of the present invention is described in more detail and the detachable means is expanded as a means for fixing the quilt.

The present invention may have various embodiments in addition to the description below, and specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, since this is not intended to limit the present invention to specific embodiments, it should be understood that the configurations disclosed below include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. Although similar reference numerals are used for similar components while describing each drawing, for example, terms such as first and second are used only for the purpose of distinguishing one component from other components, and this component It should not be understood as being limited by attaching terms to the first, second, etc. Without departing from the scope of the present invention, the first component may be referred to as a second component, and in the same way, the second component may also be referred to as a first component without departing from the scope of the present invention.

In accordance with the above principle, embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Objects and features of the present invention will become more apparent from the following detailed description.

1 is a perspective view (A) and a side cross-sectional view (B) showing a conventional bed mattress structure (10).

In Fig. 1, reference numeral 11 denotes a needle frame in the vertical plane, 12 denotes a needle frame in a horizontal plane, 13 a mattress on the needle frame, and 14 denotes a leg supporting the needle frame. 16 indicates the upper surface of the mattress having a cushion function. Each structure is a concept in which the upper surface 16 of the mattress provides a cushion on the bed at a constant height from the floor. For this, since the structure and function are well known in this field, a detailed detailed description thereof will be omitted.

However, it is premised that the present invention described below may be used as a structure deployed on the floor as well as on the bed.

Figure 2 is a perspective view (A) and a side cross-sectional view (B) showing the present invention bed mattress structure (20).

In particular, FIG. 2 shows the shape of the mattress placed on the bed, in which the upper surface part 26-1 and the side part 27-1 of the mattress have an air communication cover structure in which air is closed to the human body through the inside and outside of the mattress.

In such a configuration, the air mainly introduced from the side portion exits the upper surface portion, thereby cooling the human body of the person lying on the upper surface portion. That is, a three-dimensional air circulation type bed mattress structure is provided, and by using it, it is possible to feel cool and comfortable by preventing the unpleasant feeling of sweat forming on the skin in contact with the mattress in summer. This configuration prevents moisture and reduces the possibility of inhabiting harmful organisms such as mites inside the mattress structure because air is directly communicated inside the mattress structure. If the incense material is built in, the scent can be effectively cut into the body in a lying position.

In FIG. 2, reference numeral 21 denotes a vertical acicular frame, 22 denotes a horizontal acicular frame, 23 denotes a mattress on a horizontal acicular frame, and 24 denotes a leg supporting the acicular frame. Reference numeral 23-2 denotes a soft skeleton for coupling the upper surface portion 26-1 and the side surface portion 27-1, which will be described later. The soft skeleton part 23-2 and the air communication covers 26-1 and 27-1 may be connected to each other by sewing or detachable Velcro tape, a zipper, a fastener, or the like.

In the configuration of FIG. 2 , since air can freely circulate to the side and upper surfaces of the mattress 23 , a person seated there can feel a cool feeling of use while floating in the air as if using a hammock having a mesh structure.

3 shows a state in which the upper surface of the mattress 23 is covered with a heat insulating material or air blocking cover 26-2 while leaving the side portion of the mesh cover as it is. In the present invention, the member cover for heat preservation is referred to as the heat insulating cover (26-2, 27-2), and the cover for venting air in the form of a mesh member is referred to as the air communication cover (26-1, 27-1). .

At this time, the soft skeleton part 23-2 is a skeleton that is the basis for attaching and detaching the thermal insulation covers 26-2 and 27-2. For example, by using a zipper, the thermal insulation covers 26-2 and 27-2 may be attached thereto. Furthermore, if necessary, the air communication covers 26-1 and 27-1 may also be detachably attached in the same manner.

According to (B) of Figure 3, the upper surface of the body on which the human body lies, the insulating cover (26-2) is in contact with the human body, the lower end of the air is introduced through the air communication cover (27-1), so the person using this is like a cloth. You will feel as if you are lying on a hammock. In other words, it is to control the temperature of the part in contact with the human body to an appropriate temperature by dissipating a portion of the thermal insulation cover from the bottom while suppressing the cleanliness of the air flowing into the bed and the growth of harmful organisms inside the bed.

4 shows an example in which the upper surface is arranged as the air communication cover 26-1, and the side portion is differentially applied as the thermal insulation cover 27-2. In this case, the air is not circulated up and down, but is circulated inside the mattress to a certain extent, so that the upper part can be used to prevent sweat. That is, it is a proper method to use in spring and autumn.

5 shows an example in which both the upper surface part and the side part are applied as the thermal insulation cover (27-2). In this case, since all air is blocked, it becomes a mattress structure suitable for warmth in winter.

Here, since the thermal insulation cover 26-2 of the upper surface or the thermal insulation cover 27-2 of the side part can be partially opened, it can also be selectively adjusted and used according to the changing seasons.

6 is a side cross-sectional view illustrating an exploded view of the inside and outside of the mattress.

6(A) shows the innermost structure, and shows an embodiment in which an offset or pocket spring is built in the outer frame 23-1 mainly made of metal. The figure shows the case where the pocket spring 28 is accommodated in sectional drawing. Here, the frame 23-1 is referred to as a hard skeleton in the present invention.

Figure 6 (B) shows a state in which the cushioning material (29-1, 29-2) is attached to the outside of the metallic hard skeleton. In the cushioning material, ventilation parts (29-1a, 29-2a) capable of ventilation are arranged at regular to non-regular intervals, and the spacing thereof is preferably about 5Cm to 15Cm.

6C shows the side cushioning material 29-2 and the ventilation part 29-2a attached to the hard skeleton part as an example of the side part.

Figure 6 (D) shows a state in which the cushion material is accommodated between the hard skeleton part and the soft skeleton part by attaching a cushioning material to the hard skeleton part and wrapping the soft skeleton part 23-2 to the outside thereof. As the configuration of these Figures 6 (A) to (D), a basic structure of a bed mattress with a cushion function through which air is communicated is made.

7 shows a structure in which the air communication covers 26-1 and 27-1 and the thermal insulation covers 26-2 and 27-2 are sequentially connected to the mattress soft skeleton 23-2 of the basic structure.

In order from the inside, the cushioning material 29-1 including the spring 28 installed on the hard skeleton part, the ventilation part 29-1a, the air communication covers 26-1 and 27-1 and/or the thermal insulation cover ( 26-2, 27-2) are coupled in the order of the connected soft skeleton part 23-2, and in particular, the insulating cover (26-2, 27-2) is a structure including a partial opening, and the soft skeleton part ( 23-2) can be partially opened or removed.

Detachment and attachment can be achieved not only with fasteners such as zippers, velcro tapes, magnetic buttons, etc., but also curtain-type opening control by pulling strings or the like. In addition, various means may be employed for the same purpose, but for the sake of principle description, other exemplary embodiments will be omitted.

8 shows a case in which the user removes and removes the insulating covers 26-2 and 27-2 and applies only the air communication covers 26-1 and 27-1 according to the structure of FIG. It is a suitable method for summer among the four seasons. At this time, the detachable thermal cover 27-2 can be rolled up on the side of the end of the mattress even when only a part or the whole is walked, so there is no burden of providing a separate storage place.

In FIGS. 8 (A) and (B), 23-2 represents the soft skeleton, and 23-2a illustrates the case of a zipper from which the thermal insulation cover is detachable. 8(B) is a cross-sectional view of the upper surface in a state in which the thermal insulation cover is removed. In this case, the soft skeleton 23-2 is relatively widely distributed to the central portion. That is, it shows an embodiment in which the air communication area is shaped to increase the force surrounding the bed member by taking only the central part.

9 shows that the upper part insulating cover 26-2 is removed and used in the same state as FIG. 9 and 10 (B) is a cross-sectional view of the upper surface.

11 shows a non-powered type air communication control method for automatically controlling the flow of air inside the bed mattress.

In this structure, it further includes an opening/closing control member (30b) for controlling the opening and closing of the air communication action of the ventilation unit (29-2a) added to the side cushioning material (29-2) inside the mattress, this opening/closing control unit (30b) is normally It is kept closed (see (A)), and when wind is blown by the fan 31, it is opened (see (B)) and has a structural characteristic in which air flows into and circulates.

With this configuration, the timer of the fan can be used, so even when a person sleeps for a long time, air is communicated only for an appropriate amount of time, and for the rest of the time, gentle air communication is possible only with circulation inside the mat.

On the other hand, according to the opening/closing control part 30b of the windshield function, it is normally kept closed (see (A)), but pumping occurs whenever a person goes up to the bed, so air flows into the mattress to prevent moisture inside. It is possible to maintain cleanliness for hygiene reasons.

12 is an embodiment in which the detachable means 23-2a attached to the soft skeleton 23-2 of the present invention is described in more detail, and the detachable means is expanded into a duvet fixing means 33 for fixing the duvet. It is a cross-sectional view showing an example.

In Figure 12, 23-2a is a first fastener (23-2a) such as a zipper formed on the inner edge of the soft skeleton (23-2). As this first fastener, as shown in FIG. 12 (B), attach the insulating cover 27-2 to the side part or remove it and use the side part in the air communication cover 27-1 state as shown in FIG. 12(C). be able to

The longitudinal end of FIG. 12 (that is, the end of the direction in which the feet are positioned) shows that a second fastener 33 such as a zipper capable of fixing a duvet can be installed. This second fastener solves the problem of the duvet falling to the floor or the duvet turning upside down when tossing and turning while sleeping. In FIG. 12, unexplained reference numeral 32 denotes a quilt on a bed.

The first fastener 23-2a formed on the inner edge of the soft skeleton part 23-2 for detaching the cover and/or the second fastener for fixing the duvet includes fasteners such as Velcro tape or buttons in addition to the zipper. It can be used, and when using Velcro tape or fasteners, the convenience of use is improved by dividing it into at least two or more. The position of the second fastener 33 is located on the longitudinal or lateral side of the mattress as well as the upper surface of the illustrated mattress, or may consist of a pair of mattresses spread over the upper surface of the mattress, and FIG. 13 depicts this.

In particular, the first and second fasteners can utilize zippers, Velcro tapes, buttons, hooks, magnetic buttons, fasteners, etc., Figure 13 shows the configuration in which the second fastener 33 is engaged with Velcrotef with a ring. It is shown as a cross-sectional view of a representative embodiment. That is, if the Velcro tape 33 is installed on the edge of the mattress to be spread on the upper surface of the soft skeleton or bed, and the hook 33a is attached to the edge of the quilt that meshes with it, so that they can be tied together with a fastener concept, such as late at night, etc. It can be used to solve the problem of the duvet dripping from the bed mattress to the floor while sleeping.

13(A) shows an embodiment in which the Velcro tape 33 is fixed to the soft skeleton part and the hooks 33a attached to the side of the duvet are inserted into each other to be used as a fastener concept. (B) shows a case in which the yaw side 33 and the duvet side 33a are configured and used as a pair of second fasteners to mesh with each other.

That is, it is preferable that the second joint be configured to mesh with the concept of a comforter and a soft skeleton or a duvet and a mattress.

In the present invention, the air communication cover (26-1, 27-1) refers to a member in a state in which the flow of air is relatively smooth, and this is referred to as the first outer skin layer.

In the present invention, the thermal insulation cover (26-2, 27-2) refers to a thermal insulation member that inhibits the flow of air, which is referred to as a second outer skin layer.

In the present invention, the configuration for controlling the coolness of a person lying on the upper surface by opening and controlling the side thermal insulation cover 27-2 in the present invention is to partially open or open the side thermal insulation cover 27-2 without waking the sleeping person. It has the advantage of being able to control the warmth of a person lying on the upper surface by arbitrarily controlling the air traffic.

In the present invention, the air communication cover (26-1, 27-1) includes a cross-sectional mesh-type cover member as well as a 3D mesh-type cover.

In the present invention, the hard skeleton part is mainly composed of a metallic member, and the soft skeleton part is a soft member mainly of a fabric or synthetic fiber type, but refers to a member constituting the formwork from the outer shell to maintain the shape of the bed.

Through the above configuration, it is possible to use a mattress that adapts to the four seasons.

That is, the present invention literally means,

“The outer frame that makes up the shape of the mattress;

The upper part constituting the upper part of the mattress;

The lower part constituting the lower part of the mattress;

Cushion unit constituting the cushion member of the mattress;

Outer skin covering the mattress cushion unit;

In the cushion part, ventilation parts are formed at regular intervals and sizes,

The outer skin is composed of a ventilation member for controlling the communication of air at the upper end and the side portion, the upper end and the side portion comprising a soft skeleton configuration that can selectively attach and detach a member for suppressing the flow of air characterized in that Bed mattress structure.”

is arranged with

Here, the outer frame includes a hard skeleton made of a metallic spring and a frame, the frame has a soft skeleton that can detach the outer skin, and the soft skeleton has a first fastener that is a cover detachable means made of a zipper or the like. may include

In addition, the upper surface portion; and a side part; the cushion part on which the ventilation part is formed is built-in, and the ventilation part may be manufactured by punching a hole in the sponge foam.

In addition, the outer skin constitutes a first outer skin layer part covering the outside of the cushion part with a mesh-shaped member and a second outer skin layer part covering the outer surface of the first outer skin layer part with a closed member, wherein the first outer skin layer part or the second outer skin layer part At least one of the parts may include a configuration detachable from the soft skeleton.

When the second outer skin layer part is removed from the soft skeleton part, it may include a configuration in which the amount can be selectively adjusted and opened by a certain area of the upper or lower part.

In the ventilation part attached to the side part, the air inlet to the ventilation part automatically opens by the force applied by wind from a fan, etc., and automatically closes if no wind force is applied. can do.

The ventilation part attached to the side part may include a configuration that is automatically opened or closed by the weight of a person.

At least one of the corners of the soft skeleton may further include a second fastener for fixing the quilt and means for configuring the quilt to mesh with it.

The above-described embodiments of the present invention have been disclosed for purposes of illustration, and various modifications, changes, and additions will be possible within the spirit and scope of the present invention by those skilled in the art having ordinary knowledge of the present invention, and such modifications, changes and additions should be considered as belonging to the following claims.

The present invention can be industrially used not only as a bed mattress, but also as a quilt for a mattress that can be engaged with the second fastener formed in the soft skeleton. Furthermore, the configuration using the second fastener of the present invention can be industrialized as a set of futons and quilts or a set of soft skeletons and quilts.

11, 21 ; vertical plane bed frame
12, 22; horizontal plane bed frame
13, 23; mattress on bed frame
14, 24; legs supporting the bed frame
16, 26 ; Cushioning mattress top
26-1; upper air duct cover
27-1; side air duct cover
26-2; top insulation cover
27-2; side heat cover
23-1; (metallic) hard skeleton
23-2; (Textile properties) Soft skeleton
28 ; spring
29-1; cushion material
29-1a; ventilation
23-2a; Cover detachment means, first joint
30b; opening/closing control
31 ; fan
32 ; bedding
33, 33a; Duvet fixing means, 2nd fastener

Claims (9)

Mattress - The mattress includes a cushion portion having a cushion member, the cushion portion is formed with a ventilation portion;
Including an outer skin surrounding the upper surface and side portions of the mattress,
The outer skin has a ventilation structure so that external air can communicate between the upper surface portion and the side portion, and the upper surface portion is a surface corresponding to the human body,
The outer skin is
a first outer skin layer located on the outside of the cushion unit and having a mesh-like structure, covering the cushion unit to the outside; and
A second outer skin layer portion covering the outer surface of the first outer skin layer portion with a hermetic member,
External air can be communicated through the first outer skin layer,
The ventilation unit is normally maintained in a closed state, but is opened by a pumping action by the weight of a person, and bed mattress structure, characterized in that to introduce air into the mattress.
delete According to claim 1, wherein the second outer skin layer portion is partially openable bed mattress structure, characterized in that the amount of air to be communicated can vary depending on the season. The method of claim 1,
an outer formwork constituting the shape of the mattress and having a hard skeleton made of a metallic spring and a frame; and
Further comprising a soft skeleton that can be detached from the outer skin,
The soft skeleton part is formed in the frame, and at least one of the first outer skin layer part and the second outer skin layer part is detachable from the soft skeleton part,
When the second outer skin layer is removed from the soft skeleton part, bed mattress structure, characterized in that it includes a configuration that can be set open to control the amount selectively by a certain area of the upper or lower part. 5. The method of claim 4, wherein the soft skeleton comprises a first fastener that is a detachable means of the second outer skin layer,
In summer, the bed mattress structure, characterized in that the portion corresponding to the side of the mattress of the second outer skin layer is removed through the first fastener. The bed mattress structure according to claim 1, wherein the cushion part is manufactured by punching a hole in the sponge foam. The method of claim 1, wherein the cushion portion is formed with a ventilation portion,
In the ventilation portion corresponding to the side portion of the mattress, the air inlet to the ventilation portion is automatically opened by the force applied by wind from a fan, etc., and automatically closed if no wind force is applied. A bed mattress structure comprising a.
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