TW201907833A - Mattress structure - Google Patents

Abstract

Provided is a mattress structure which eliminates the unsettled sensation characteristic of fluid-filled mattresses which are filled with a fluid such as air or water, and provides a sense of stability and improved lying comfort. This mattress structure is provided with a fluid-filled mat layer having a plurality of fluid cells and a cushion layer laminated on the upper surface of the fluid-filled mattress layer. The cushion layer has a fluid cell control means which comprises slits, protruding parts or protruding and recessed parts on the lamination surface opposite the fluid-filled mat layer. The mattress structure is configured so that with the interior of the fluid cells of the fluid-filled mat layer filled with the fluid, valleys between adjacent expanded fluid cells oppose the fluid cell control means on the cushion layer.

Description

Mattress structure

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mattress structure that can be used as a cushioning material for a bedding, a seat, or a chair, and more particularly to a mattress structure that can also be used in emergency evacuation or outdoor use.

Background of the Invention From the past, a fluid-filled seat cushion filled with a fluid such as air or water has been widely used. The characteristics of the fluid-filled seat cushions are excellent in body-pressure dispersibility. Therefore, in medical institutions, care facilities, and the like, the user is used for a long-term bed rest for the purpose of suppressing the occurrence of pressure sores. Moreover, since the hardness can be adjusted by increasing or decreasing the filling amount of the fluid, and it can be stored in a small size when not in use, and it is easy to carry, it is also used in emergency evacuation or outdoors.

As an example of a disaster reserve product or an outdoor product, there is an air bed which can be folded and stored in a small size at ordinary times, and the opening material is filled with air inside during use. For example, Patent Document 1 discloses an air mattress which is a simple mattress for disaster storage and is formed by providing a sheet of a cylindrical body obtained by laminating a plurality of synthetic resin sheets. a sheet, flatly folding the sheet, blocking both end portions, and splicing a plurality of roots in a predetermined length of the short side direction of the folded sheet to set a partition portion excluding the communication hole portion, and surrounding Install a check valve air injection hole at any point. Prior Technical Literature Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 9-154673

SUMMARY OF THE INVENTION Problems to be Solved by the Invention An air bed according to Patent Document 1 has a plurality of air chambers partitioned by a partition, and as shown in Fig. 12, each air chamber 2a' and an adjacent air chamber 2a 'Connected to each other by the communication portion 2c'. The cushioning material in the air bed is air filled in each of the air chambers 2a', and the air fluidity is high, so that the damping effect is small compared with the foamed resin or the spring. Therefore, the movement of the air between the air cells 2a' occurs every time the user moves, and the shape of the air cells 2a' changes frequently. For example, even if the slight movement such as "lifting the head slightly", the load P applied to each of the air chambers 2a' changes, and therefore, the air chamber 2a' to which the load P is applied is rapidly discharged due to the air. As the size becomes smaller, the adjacent air chambers 2a' become larger due to the rapid inflow of air.

Further, since each of the gas cells 2a' is divided one by one by the partition portion, each of the gas cells 2a' can move relatively freely. Therefore, as shown in Fig. 12, each of the air cells 2a' is easily oscillated in the horizontal direction in response to the movement of the air, the movement of the user, or the vibration around the surroundings. This phenomenon also occurs in medical air-conditioning, on a stationary air bed or water bed for general household use.

On the other hand, as shown in Fig. 13, there is also an air bed in which the air cells 2a' are not communicated with each other, and the air cells 2a' formed by the independent bag bodies are arranged in parallel. The air bed is mainly used for preventing or mitigating acne (pressure sores) of a user who is in a state of being in a bed for a long time in medical facilities or nursing facilities, and the air chamber 2a' is alternately expanded and contracted by the air pump. To use. Therefore, as shown in Fig. 13, the expanded air chamber 2a' adjacent to the air chamber 2a' which is reduced in contraction is likely to be shaken in the horizontal direction.

As described above, the fluid chamber of the air mattress (hereinafter also referred to as "fluid chamber") may be sensitively changed in shape, or fluid, accompanying the movement of the user or the movement of the fluid such as the air to be filled. The room itself will shake. Therefore, if a fluid is used to fill the mattress, there will be a unique floating feeling, a lack of stability, and a situation in which the posture of the body becomes unstable due to difficulty in obtaining a balance on the mattress.

Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a mattress structure which eliminates the unique floating feeling of a conventional fluid-filled mattress, has a stable feeling, and has an improved sleep experience. Means to solve the problem

As a result of active research by the inventors of the present invention, it has been found that the valley portion 2d' between the adjacent expanded gas chambers 2a' shown in Figs. 12 and 13 does not hinder the gas chamber 2a'. Braking is performed within the range of expansion and contraction, thereby suppressing the shaking of the respective air chambers 2a'. Based on this knowledge, the present invention has finally been completed.

In order to solve the above problems, the mattress structure of the present invention includes: a fluid filling cushion layer having a plurality of fluid chambers; and a buffer layer laminated on an upper surface side of the fluid filling cushion layer, the buffer layer having a buffer layer disposed on the fluid filling pad a fluid chamber control mechanism formed by a slit, a convex portion or a concave-convex portion of a layer between layers, and formed between adjacent expanded fluid chambers in a state in which a fluid chamber of the fluid filling cushion is filled with a fluid The valleys, as well as the fluid chamber control mechanisms of the buffer layer, are configured to be opposite.

The fluid chamber control mechanism disposed in the buffer layer is at least opposite to the valley portion disposed between the adjacent expanded fluid chambers, thereby forming a protrusion between the slits of the fluid chamber control mechanism when the load is loaded The portion, the convex portion, or the concave and convex portion enters the valley portion between the adjacent expanded fluid chambers, so that the action of the valley portion is suppressed. Thereby, the shaking of the fluid chamber is controlled. In addition, when a change in load due to the action of the user occurs, the fluid chamber control mechanism enters the valley between the fluid chambers in the direction of the load change in response to the load change, and therefore, the fluid generated by the load change The impulsive deformation of the chamber is suppressed, and the sensitive shape change of the fluid chamber generated by the user's micro-actions is also reduced. By these actions, the unique floating feeling of the fluid-filled mattress can be eliminated, and a stable mattress structure can be obtained. Further, although the fluid chamber control means is formed as a protruding portion, a convex portion or a concave-convex portion formed between the slits, it is not fixed to the valley portion, and therefore does not hinder the shape change of each fluid chamber, and the mattress as a whole Fit will be maintained.

Further, the fluid chamber control means provided in the buffer layer of the mattress structure is preferably a slit, a convex groove or a concave-convex groove which is continuously formed in one direction. Thereby, a suitable configuration will be selected as the fluid chamber control mechanism. In this case, the plurality of fluid chambers constituting the fluid-filled cushion layer are preferably arranged substantially parallel to the slit direction, the convex groove or the concave-convex groove direction of the fluid chamber control means.

Moreover, it is preferable that the fluid chamber control means provided in the buffer layer of the mattress structure is a slit formed in a lattice shape or an uneven portion arranged in a line. Thereby, a suitable configuration can be selected as the fluid chamber control mechanism. In this case, the arrangement of the plurality of fluid chambers constituting the fluid-filled cushion layer is preferably arranged to be substantially parallel to the longitudinal slit direction or the transverse slit direction of the lattice-like slit of the fluid chamber control means or the column direction of the uneven portion. .

The cushion layer of the mattress structure is preferably a resin foam having a hardness of 10 to 500 N (according to JIS K6400-2 "Soft foam material: hardness and compressive stress - strain characteristics" (25% compression)) Or a three-dimensional network structure. Thereby, a suitable material as a buffer layer constituting the mattress structure of the present invention can be selected.

Further, in the mattress structure, it is preferable to further include a second buffer layer laminated on the lower surface side of the fluid filling mat layer. Thereby, the overall cushioning property of the mattress structure can be improved, and the durability of the fluid filling cushion can be improved.

In the second buffer layer described above, it is preferable that a second fluid chamber control mechanism selected from the slit, the convex portion, and the uneven portion is provided on the layer formed on the fluid-filled mat layer. Thereby, in addition to the upper side of the fluid filling mat, the valley between the adjacent fluid chambers can be braked from the lower side, so that the shaking of the fluid chamber can be controlled more.

Further, the second buffer layer is preferably a resin foam having a hardness of 200 N or more (according to JIS K6400-2 "soft foaming material: hardness and compressive stress − strain characteristic (25% compression) or A three-dimensional network structure is formed, whereby a suitable material as the second buffer layer constituting the mattress structure of the present invention can be selected.

The plurality of fluid chambers of the fluid-filled mat of the mattress structure preferably divide at least one of the pockets to form a fluid communication with the adjacent fluid chamber. When the load is applied, the protruding portion, the convex portion, or the uneven portion formed between the slits of the fluid chamber control mechanism enters the valley portion between the adjacent fluid chambers, and also brakes the movement of the adjacent fluid chamber. The rapid shape change of the fluid chamber that communicates with each other can be suppressed, and the shape becomes slowly changed. Therefore, the unique floating feeling of the fluid-filled mattress can be eliminated, and a stable mattress structure can be obtained.

Further, the plurality of fluid chambers of the fluid-filled cushion layer are preferably formed of bags which are free from expansion and contraction and which are independent of each other. The protruding portion, the convex portion, or the uneven portion formed between the slits of the fluid chamber control mechanism enters the valley portion between the fluid chambers for performing the expansion and contraction operation, and the vibration generated by the expansion and contraction operation of each fluid chamber Or shake down. Therefore, the unique floating feeling of the fluid-filled mattress can be eliminated, and a stable mattress structure can be obtained. Effect of the invention

According to the present invention, it is possible to provide a mattress structure having the following excellent effects. (1) It is possible to obtain a mattress structure in which the unique floating feeling of the fluid-filled mattress is eliminated, the sense of stability, and the sleep experience are improved. (2) Since the fluid-filled cushion has a laminated structure in which a buffer layer is laminated, the heat retaining property and the durability of the fluid-filled cushion portion are also improved. (3) After use, it can be folded or rolled into a tubular shape or the like to be stored in a small size.

In the mattress structure 1 of the first embodiment of the present invention, the second buffer layer 6 and the fluid filling pad 2 are laminated from the lower side (floor side). And buffer layer 4. In the present specification, the upper and lower sides are set to mean the vertical direction in a state where the mattress structure 1 is placed on the ground, that is, the vertical direction in FIG.

The fluid filling mat 2 constituting the mattress structure 1 of the present embodiment will be described with reference to Fig. 1 . In the fluid-filled cushion layer 2 of the present embodiment, the first fluid-filled pad member 3A and the second fluid-filled pad member 3B are vertically overlapped, and both are formed on the outer peripheral end to form an integrated fluid. Fill the mat 2. Each of the first fluid filling pad member 3A and the second fluid filling pad member 3B is composed of a bag body formed by sealing the outer peripheral portions of the two sheets, and is arranged in a substantially rhombic shape at predetermined intervals. The connecting groove 2b is formed by dividing the two sheets into a plurality of substantially rhombic fluid chambers 2a. The adjacent fluid chambers 2a are configured to communicate with each other in the fluid chamber communication portion 2c that is not connected to the connection groove 2b, and are sealed with air or water such as water inside the fluid filling mat 2, and can communicate through the fluid chamber. The portion 2c moves between the adjacent fluid chambers 2a. In addition, the first fluid filling pad member 3A and the second fluid filling pad member 3B that are overlapped in the vertical direction are configured to be connected by a connector (not shown), and both of them are filled with air or the like from either one. Filled.

In the present embodiment, the linear connecting groove 2b provided in the first fluid filling pad member 3A is configured to be disposed in a line-like connecting groove provided in the second fluid filling pad member 3B when viewed in plan. 2b cross position. Thereby, the connection groove 2b on the upper side of the first fluid-filled pad member 3A and the connection groove 2b on the side of the lower second fluid-filled pad member 3B act as a cross-brace to stably support the user's body.

Although air or the like is filled in the fluid-filled cushion layer 2 of the present embodiment, the fluid chamber 2a expands. However, between the expanded fluid chamber 2a and the fluid chamber 2a, the valley portion 2d is formed along the linear connecting groove 2b (refer to Figure 1 (b)). In the middle, the valley portion 2d of the first fluid filling pad member 3A formed on the upper side is braked by the fluid chamber control mechanism 5 of the buffer layer 4 to be described later, and the sensitive shape change or shaking of the fluid chamber 2a is suppressed.

The sheet material constituting the fluid-filled cushion layer 2 is formed of a non-permeable sheet that does not permeate a fluid such as air or water, and can be easily bonded by a linear connecting groove 2b by welding. Next, from this point of view, a thermoplastic synthetic resin film such as urethane, polyethylene, polypropylene, polyvinyl chloride, nylon, or polyester is suitably used. In the present embodiment, a urethane film is used for the sheet material from the viewpoint of flexibility and weldability (adhesiveness). Further, in the following, the subsequent bonding by the adhesive is also included.

Further, the fluid filling pad 2 of the present embodiment is composed of two layers of the first fluid filling pad member 3A and the second fluid filling pad member 3B, but may be configured only by the first fluid filling pad member 3A. The one-layer structure may be formed by stacking three or more layers. Further, the pattern of the linear connecting grooves 2b is not limited to the diamond-shaped pattern shown in the present embodiment, but may be configured in various shapes.

In addition, as a fluid to be filled in the fluid-filled cushion layer 2 of the present embodiment, a gas such as air, a liquid such as water, a gel, or the like is exemplified, but air is most suitable from the viewpoint of ease of handling.

Next, the buffer layer 4 constituting the mattress structure 1 of the present embodiment will be described. As shown in Fig. 1 and Fig. 2(a), the buffer layer 4 of the present embodiment is provided with a fluid chamber control mechanism 5 on the lower surface side as a layer between the fluid-filled cushion layer 2. In the present embodiment, as the fluid chamber control means 5, a lattice-shaped slit 5a is formed. The lattice-shaped slit 5a is a slit formed by half-cutting in the thickness direction of the buffer layer 4. In the present embodiment, it is cut into about 2/3 of the thickness of the buffer layer 4 of 30 mm.

In order to brake the valley portion 2d formed between the adjacent fluid chambers 2a on the fluid filling mat 2, the fluid chamber control mechanism 5 of the buffer layer 4 is disposed at a position opposed to the valley portion 2d. In the present embodiment, the valley portion 2d is formed along the connection groove 2b of the fluid filling mat 2 (first fluid filling pad member 3A) on the upper side shown in Fig. 2(b), and therefore, the fluid of the buffer layer 4 The chamber control mechanism 5 is disposed at a position facing the connection groove 2b. Specifically, as shown in FIG. 2( a ), the lattice-shaped slits 5 a as the fluid chamber control means 5 are cut in parallel with the longitudinal and lateral directions of the buffer layer 4 and are continuously provided on the entire lower surface side of the buffer layer 4 . Further, as another example of the lattice-shaped slit 5a, as shown in Fig. 2(c), a lattice-like slit which is cut in parallel with the direction in which the connecting groove 2b of the valley portion 2d of the fluid filling mat 2 is formed may be formed. Sew 5a. Further, although the lattice-shaped slit 5a as the fluid chamber control means 5 is continuously provided on the entire lower surface side of the buffer layer 4 as shown in Figs. 2(a) and (c), it may be provided only partially in the meeting. A portion of the valley portion 2d of the fluid filling mat 2 is formed. Further, in the fluid chamber control unit 5, as in the example shown in the second embodiment, when the subsequent pattern of the linear connection groove 2b is continuous only in one direction, it can be formed as a slit which is continuously formed only in one direction. 5a.

In order to brake the valley portion 2d formed between the adjacent fluid chambers 2a formed on the fluid filling mat 2 shown in Fig. 1(b), the fluid chamber control mechanism 5 of the buffer layer 4 is formed into a lattice-like slit 5a. The formed protruding portion 5b can enter the size of the valley portion 2d. Specifically, the length between the slits formed in the lattice-shaped slits 5a, that is, the length of the width 5W of the protruding portion 5b is equal to or less than the length of the width 2W of the valley portion 2d of the fluid filling mat 2 (2W≧) 5W). Further, although the slit depth of the lattice-like slit 5a, that is, the height 5H of the protruding portion 5b, varies depending on the thickness of the buffer layer 4 and the depth of the valley portion 2d between the fluid chambers 2a of the fluid filling mat 2 Change, but if the height 5H of the protruding portion 5b is too high (the slit depth of the slit 5a is too deep), the hardness of the buffer layer 4 itself becomes small to affect stability, and if the height 5H of the protruding portion 5b is too low ( When the slit depth of the slit 5a is too shallow, the force for pressing the valley portion 2d is weakened. From this point of view, it is preferably constituted by about 1/3 to 2/3 of the thickness of the buffer layer 4.

In addition, another example of the fluid chamber control mechanism 5 formed on the lower surface side of the buffer layer 4 will be described with reference to FIG. 3(a) and 3(b) are examples in which the fluid chamber control mechanism 5 is formed as a convex groove, FIG. 3(c) is an example in which the fluid chamber control mechanism 5 is formed as a concave-convex groove, and FIG. 3(d) is a fluid chamber control mechanism. 5 is formed by contour processing to form an uneven portion disposed on the same column. In this manner, the fluid chamber control mechanism 5 can be provided on the lower surface side of the buffer layer 4 in various forms. In any of the fluid chamber control mechanisms 5, in order to brake the valley portion 2d formed between the adjacent fluid chambers 2a formed on the fluid filling mat 2, the width 5W of the protruding portion 5b and the height 5H of the protruding portion 5b are adjusted to be convex grooves, The protruding portion 5b in the uneven groove or the uneven portion can enter the valley portion 2d of the fluid filling mat 2. Moreover, FIG. 3(e) shows an example in which the fluid chamber control means 5 is provided with a convex groove on the lower surface side of the buffer layer 4, and a convex groove is also provided on the upper surface side of the buffer layer 4. In this way, a convex groove, a slit, or the like is also provided on the upper surface side of the buffer layer, whereby an effect of improving the flexibility, preventing the sweltering during use, and raising the back (moving bed angle adjustment) can be obtained.

In terms of the material of the buffer layer 4, the hardness measured according to JIS K6400-2 "Soft foam material: hardness and compressive stress - strain characteristic" (25% compression) is preferably 10 to 500 N, which is 50~200N is better, especially 90~150N. The material of the buffer layer 4 is not particularly limited as long as it has the above hardness and has a cushioning property. However, the resin foam and the three-dimensional network structure are suitable for use, and it is easy to handle and process. From the viewpoint of degree, a resin foam is more desirable. Specific examples of the resin foam include foamed polyurethane, expanded polyolefin, and foamed silicone. Although not particularly limited in the present embodiment, the buffer layer 4 is formed of a foamed polyurethane having a thickness of 30 mm and a hardness of 120 N.

Here, the layer of the buffer layer 4 and the fluid filling mat 2 is preferably not fixed. The fluid chamber control mechanism 5 provided in the buffer layer 4 is not fixed to the fluid filling mat 2, whereby the protruding portion 5b of the fluid chamber control mechanism 5 can easily follow the shape change of each fluid chamber 2a, and is effectively formed on The valley portion 2d between the adjacent fluid chambers 2a on the fluid filling mat 2 is braked, and at the same time, the protruding portion 5b of the fluid chamber control mechanism 5 does not hinder the deformation of the fluid chambers, so that a good sense of stability can be obtained. Fit to the mattress as a whole. Further, the layer of the buffer layer 4 and the fluid filling mat 2 may be partially fixed in a range that does not impede such effects.

Next, the second buffer layer 6 will be described. In the mattress structure 1 of the present embodiment, the second buffer layer 6 is harder than the first buffer layer 4. By providing the second buffer layer 6, it is possible to prevent the bottom of the substrate from being excessively loaded, or to break the hole of the sheet of the fluid-filled mat 2, and to protect the fluid-filled underlayer 2, thereby improving durability. In the material of the second buffer layer 6, the hardness measured by JIS K6400-2 "soft foaming material: hardness and compressive stress - strain characteristic" (25% compression) is preferably 200 N or more. It is better for those above 300N, and especially for those above 400N. The second buffer layer 6 is not particularly limited as long as it has the above hardness and has a cushioning property. However, it is suitable to use a resin foam and a three-dimensional network structure, and it is easy to handle and process. From the point of view, resin foam is a better ideal. Specific examples of the resin foam include foamed polyurethane, expanded polyolefin, and foamed silicone. Although not particularly limited in the present embodiment, the second buffer layer 6 is formed of expanded polyethylene having a thickness of 10 mm and a compression hardness of 0.18 MPa (JIS K6767).

Further, as shown in the second embodiment to be described later, the second fluid chamber control mechanism can be provided in the second buffer layer 6. Specifically, the second fluid chamber control means is a slit, a convex portion, a concave-convex portion, and the like which are provided on the level (the upper surface side of the second buffer layer 6) between the second buffer layer 6 and the fluid filling pad 2 Composition. Thereby, the valley portion 2d formed between the adjacent fluid chambers 2a formed under the fluid filling mat 2 can be braked, and the shaking of the fluid chamber 2a can be further suppressed. Further, in order to reduce the size of the mattress structure 1, it is also possible to omit the second buffer layer 6 from the configuration.

When the mattress structure 1 of the present embodiment is loaded as shown in FIG. 4, the protruding portion 5b formed by the lattice slit 5a of the fluid chamber control mechanism 5 of the buffer layer 4 enters and is applied. The fluid chamber 2a of the load portion is adjacent to the valley portion 2d between the fluid chambers 2a. Thereby, the movement of the valley portion 2d between the adjacent fluid chambers 2a is suppressed, and the shaking of the fluid chamber 2a is controlled. Further, when a load change due to the user's motion occurs, the protruding portion 5b constituted by the fluid chamber control mechanism 5 enters the valley portion 2d between the fluid chambers 2a in the load change direction in response to the load change. Therefore, it is possible to suppress the sudden deformation of the fluid chamber 2a caused by the change in the load, and it is also possible to reduce the sensitive shape change of the fluid chamber 2a caused by the slight movement of the user. By these actions, the unique floating feeling of the fluid-filled mattress can be eliminated, and the mattress structure 1 having a stable feeling can be obtained.

As shown in Fig. 5, the mattress structure 1 of the present embodiment is housed in the outer cover 8 from the zipper 8b and covered by the outer cover 8, and is placed on the seat cushion 9 in three rows to form the mattress M. The adjacent mattress structure 1 is connected to each other by a connecting portion 8a formed of a fully open type zipper attached to a side surface portion of the outer cover 8. The seat cushion 9 and the mattress structure 1 can be coupled to the seat cushion connecting portion 8c provided at a portion corresponding to the outer cover 8 by a connecting zipper 9c provided at an end portion of the seat cushion 9 in the longitudinal direction, and can be fixed. Both. Further, the connecting portion 8a and the seat cushion connecting portion 8c may be replaced with a full-open zipper, and a connecting mechanism such as a devil felt or a clasp may be applied. In addition, it is also possible to adopt a configuration of a general three-fold mattress outer cover in which three outer covers 8 are joined by sewing. In this way, the mattress M is constituted by a plurality of mattress structures 1 , whereby a bulky mattress can be used as the mattress structure 1 , and air can be extracted and compressed, etc., and can be stored in a small size. When the link is used as the mattress M, it can also be used equally as a seat cushion or a cushion. In addition, the seat cushion 9 shown in FIG. 5 is configured to have a stretcher bar insertion portion 9b which is formed in a tubular shape at both end portions in the width direction (short side direction), and can be used as a so-called carrying pad. The stretcher bars are each inserted into the canister to be used as a stretcher. Moreover, it is designed such that the grip portions 9a of the seat cushion 9 can be formed at four positions at regular intervals in the width direction (short side direction) so that the fingers can pass therethrough. When the stretcher bar cannot be prepared, the plurality of people can grasp the grip portion 9a of the seat cushion 9 to carry it safely.

In addition, although the mattress structure 1 of the present embodiment is configured to form one mattress M in three, it is not limited thereto, and may be configured as a bed as described in the second embodiment to be described later. The size of the mat is used to form the mattress structure 1, and one mattress M is formed in one. At this time, the mattress structure 1 is housed in one outer cover 8, and can be used by being fixed to the seat cushion 9 as needed.

Next, the mattress structure 10 of the second embodiment will be described. As shown in Fig. 6, the mattress structure 10 of the present embodiment is configured by laminating a second buffer layer 60, a fluid filling pad 20, and a buffer layer 40 from the lower side (floor side). The fluid-filled cushion layer 20 of the present embodiment is formed by sealing a bag body formed on the outer peripheral portion of the two sheets, and is disposed in a line shape excluding the fluid chamber communication portion 20c in the short-side direction (width direction). The connecting groove 20b is followed by two sheets, whereby a plurality of fluid chambers 20a elongated in the short-side direction (width direction) are formed. The fluid chambers 20a adjacent to each other are configured to communicate with each other in a fluid chamber communication portion 20c that is not connected to the connecting groove 20b, and are sealed with a fluid such as air inside the fluid filling mat 20, and can communicate through the fluid chamber. The portion 20c moves between the adjacent fluid chambers 20a. As also shown in Fig. 12, such a fluid filling mat 20 is conventionally used for a disaster reserve mattress or an outdoor mattress.

Although air or the like is filled in the fluid filling mat 20 of the present embodiment, the fluid chamber 20a expands, but between the expanded fluid chamber 20a and the fluid chamber 20a, the valley portion 20d is formed along the linear connecting groove 20b ( Refer to Figure 6(b)). This valley portion 20d is braked by the fluid chamber control mechanism 50 of the buffer layer 40 to be described later, and the sensitive shape change of the fluid chamber 20a is suppressed.

Next, the buffer layer 40 constituting the mattress structure 10 of the present embodiment will be described. As shown in FIG. 6 and FIG. 7(a), the buffer layer 40 of the present embodiment is provided with a fluid chamber control mechanism 50 on the lower surface side which is an integrated layer with the fluid filling mat 20. In the present embodiment, as the fluid chamber control means 50, an elongated slit 50a is formed in the short-side direction of the buffer layer 40. The slit 50a is formed by a slit formed by half-cutting in the thickness direction of the buffer layer 40.

In order to brake the valley portion 20d formed between the adjacent fluid chambers 20a formed on the fluid filling mat 20, the fluid chamber control mechanism 50 of the buffer layer 40 is disposed at a position opposed to the valley portion 20d. That is, the valley portion 20d is formed along the connection groove 20b of the fluid filling mat 20 shown in FIG. 7(b). Therefore, the fluid chamber control mechanism 50 of the buffer layer 40 is disposed opposite to the connecting groove 20b. position. In the present embodiment, as shown in Fig. 7(a), the slit 50a of the fluid chamber control means 50 is cut in parallel with the width direction of the buffer layer 40, and is only connected to the fluid filling mat 20 in the opposite direction. The groove 20b and a portion in the vicinity thereof are provided. Further, the slit 50a as the fluid chamber control means 50 may be continuously provided on the entire lower surface side of the buffer layer 40 as in the first embodiment described above.

In order to brake the valley portion 20d between the adjacent fluid chambers 20a of the fluid filling mat 20 shown in Fig. 7(b), the fluid chamber control mechanism 50 of the buffer layer 40 is formed to protrude by the slit 50a. The portion 50b can enter the size of the valley portion 20d. Specifically, the length between the slits of the slits 50a, that is, the length of the width 50W of the protruding portion 50b is formed to be less than the length of the width 20W of the valley portion 20d of the fluid filling mat 20 (20 W ≧ 50W). Further, although the slit depth of the slit 50a, that is, the height 50H of the protruding portion 50b varies depending on the thickness of the buffer layer 40 and the depth of the valley portion 20d between the fluid chambers 20a of the fluid filling mat 20, If the height 50H of the protruding portion 50b is too high (the slit depth of the slit 50a is too deep), the hardness of the buffer layer 40 itself becomes small to affect stability, and if the height 50H of the protruding portion 50b is too low (slit 50a) If the depth of the slit is too shallow, the force for pressing the valley portion 20d is weakened. From this point of view, it is preferably constituted by about 1/3 to 2/3 of the thickness of the buffer layer 40.

Next, the second buffer layer 60 constituting the mattress structure 10 of the present embodiment will be described. As shown in Fig. 6, the second buffer layer 60 of the present embodiment is provided with a second fluid chamber control mechanism 70 on the upper surface side of the layer between the fluid-filled mat layer 20. In the second embodiment, the second fluid chamber control unit 70 is formed with a concave-convex groove that is elongated in the short-side direction on the upper surface side of the second buffer layer 60. Thereby, the valley portion 20d formed between the adjacent fluid chambers 20a under the fluid filling cushion layer 20 can be braked, and the shaking of the fluid chamber 20a can be further suppressed.

When the mattress structure 10 of the present embodiment is loaded as shown in Fig. 8, the projection 50b formed by the slit 50a of the fluid chamber control mechanism 50 of the buffer layer 40 enters and applies a load. A portion of the fluid chamber 20a is adjacent to the valley portion 20d on the upper side between the fluid chambers 20a. Similarly, the protruding portion of the uneven groove of the second fluid chamber control mechanism 70 of the second buffer layer 60 also enters the lower valley portion 20d. Thereby, the movement of the valley portion 20d between the adjacent fluid chambers 20a is suppressed, and the shaking of the fluid chamber 20a is controlled. Further, when a load change due to the user's motion occurs, the protruding portion 50b constituted by the fluid chamber control mechanism 50 enters the valley portion 20d between the fluid chambers 20a in the load changing direction in response to the load change. Therefore, it is possible to suppress the rapid deformation of the fluid chamber 20a caused by the change in the load, and it is also possible to reduce the sensitive shape change of the fluid chamber 20a caused by the user's operation. By these actions, the unique floating feeling of the fluid-filled mattress can be eliminated, and a stable mattress structure 10 can be obtained.

Other descriptions relating to the mattress M formed by using the fluid-filled cushion layer 20, the buffer layer 40, the second buffer layer 60, and the mattress structure 10 of the present embodiment are the same as those of the first embodiment described above. The effect is the same.

Next, the mattress structure 11 of the third embodiment will be described. As shown in Fig. 9, the mattress structure 11 of the present embodiment is composed of a fluid-filled cushion layer 21 and a buffer layer 41. In the mattress structure 11 of the present embodiment, the second buffer layer shown in the above embodiment is not provided. However, it is needless to say that the second buffer layer may be provided. The fluid filling mat 21 of the present embodiment is different from the fluid filling mats 2, 20 described in the above embodiments, and the adjacent fluid chambers 21a are not in communication with each other, and are fluid chambers composed of independent pouches. 21a is a plurality of so-called "pressure switching type" fluid filling mats formed in parallel. The air in the fluid chamber 21a is interactively expanded and contracted by an air pump (not shown).

After the air is filled in the fluid filling mat 21 of the present embodiment, the fluid chamber 21a expands and contracts alternately, but a large valley portion 21d is formed between the expanded fluid chambers 21a (see Fig. 9(b)). . This valley portion 21d is braked by the fluid chamber control mechanism 51 of the buffer layer 41 to be described later, and the shaking of the respective fluid chambers 21a is suppressed.

Next, the buffer layer 41 constituting the mattress structure 11 of the present embodiment will be described. As shown in Fig. 9 and Fig. 10(a), the buffer layer 41 of the present embodiment is provided with a fluid chamber control mechanism 51 on the lower surface side of the layer between the fluid-filled mat layer 21. In the present embodiment, as the fluid chamber control unit 51, a slit 51a that is elongated in the short-side direction of the buffer layer 41 is formed. The slit 51a is constituted by a slit formed by half-cutting in the thickness direction of the buffer layer 41.

In order to brake the valley portion 21d formed between the expanded fluid chambers 21a formed on the fluid filling mat 21, the fluid chamber control mechanism 51 of the buffer layer 41 is disposed at a position opposed to the valley portion 21d. That is, the valley portion 21d is formed along the shape of each fluid chamber 21a of the fluid filling mat 21 shown in FIG. 10(b), and therefore, the fluid chamber control mechanism 51 of the buffer layer 41 is disposed in each fluid chamber. 21a relative position. In the present embodiment, as shown in Fig. 10(a), the slit 51a as the fluid chamber control means 51 is provided so as to be cut in parallel with the width direction of the buffer layer 41 on the lower surface side of the buffer layer 41, and the fluid filling pad. The layer 21 fluid chambers 21a are opposed to each other.

Further, in order to brake the valley portion 21d formed between the expanded fluid chambers 21a formed on the upper surface of the fluid filling mat 21, the fluid chamber control mechanism 51 of the buffer layer 41 is formed so that the protruding portion 51b formed by the slit 51a can enter. The size of the valley 21d. Specifically, the length between the slits of the slit 51a, that is, the length of the width 51W of the protruding portion 51b is formed to be equal to or less than the length 21W of the valley portion 21d of the fluid filling mat 21 (21 W ≧ 51 W) ). Further, although the slit depth of the slit 51a, that is, the height 51H of the protruding portion 51b varies depending on the thickness of the buffer layer 41 and the depth of the valley portion 21d between the fluid chambers 21a of the fluid filling mat 21, If the height 51H of the protruding portion 51b is too high (the slit depth of the slit 51a is too deep), the hardness of the buffer layer 41 itself becomes small to affect stability, and if the height 51H of the protruding portion 51b is too low (slit 51a) If the depth of the slit is too shallow, the force for pressing the valley portion 21d is weakened. From this point of view, it is preferably configured to be about 1/3 to 2/3 of the thickness of the buffer layer 41.

When the mattress structure 11 of the present embodiment is loaded as shown in Fig. 11, the protruding portion 51b formed by the slit 51a of the fluid chamber control mechanism 51 as the buffer layer 41 enters the expanded fluid chamber 21a. Between the valleys 21d. Thereby, the action of the expanded fluid chamber 21a adjacent to the contracted fluid chamber 21a is suppressed, and the shaking of the fluid chamber 21a is controlled. Further, when a load change due to the user's motion occurs, the protruding portion 51b constituted by the fluid chamber control mechanism 51 enters the valley portion 21f between the fluid chambers 21a in the load change direction in response to the load change. Therefore, it is possible to suppress the sudden deformation of the fluid chamber 21a caused by the change in the load, and it is also possible to reduce the load on the fluid chamber 21a caused by the user's operation. By these actions, the respective operations of the fluid chamber 21a are controlled, and the mattress structure 11 having a stable feeling can be obtained.

The other descriptions relating to the mattress M formed by using the cushion layer 41, the second buffer layer, and the mattress structure 11 in the present embodiment are the same as those in the first and second embodiments described above. The effect is the same.

The present invention is not limited to the above-described embodiments, and the technical scope thereof also includes various modifications of the design made without departing from the scope of the invention described in the scope of the patent application.

1,10,11‧‧‧ mattress structure

2, 20, 21‧‧‧ fluid filling cushion

2a, 20a, 21a, 2a'‧‧‧ fluid chamber (air chamber)

2b, 20b‧‧‧ connection trench

2c, 20c, 2c'‧‧‧ fluid chamber communication (air chamber connection)

2d, 20d, 21d, 2d’‧‧‧ Valley

2W, 20W, 21W‧‧‧ Width of the valley

3A‧‧‧1st fluid filling pad member

3B‧‧‧2nd fluid filling pad member

4, 40, 41‧‧‧ buffer layer

5, 50, 51‧ ‧ fluid chamber control mechanism

5a, 50a, 51a‧‧ slit

5b, 50b, 51b‧‧‧ protruding parts

5W, 50W, 51W‧‧‧ protrusion width

5H, 50H, 51H‧‧‧ protrusion height

6, 60‧‧‧2nd buffer layer

70‧‧‧2nd fluid chamber control mechanism

8‧‧‧ Cover

8a‧‧‧Connecting Department

8b‧‧‧ zipper

8c‧‧‧Cushion Joints

9‧‧‧Cushion (carrying pad)

9a‧‧‧ grip

9b‧‧‧ Stretcher rod insertion

9c‧‧‧link zipper

M‧‧‧Mattress

P‧‧‧Load

Fig. 1 (a) is an exploded perspective view of the mattress structure of the first embodiment, and Fig. 1 (b) is a cross-sectional view thereof. Fig. 2 (a) is a view showing a slit provided on the lower surface side of the cushion layer of the mattress structure of the first embodiment, and Fig. 2 (b) is a view showing the upper side of the fluid filling mat, and Fig. 2 (c) is a view showing another slit pattern provided on the lower surface side of the buffer layer. 3 is a cross-sectional view showing another example of a fluid chamber control mechanism provided in a buffer layer. Fig. 4 is an explanatory view showing a use state of the mattress structure of the first embodiment. Fig. 5 (a) is a side view showing a mattress using the mattress structure of the first embodiment, and Fig. 5 (b) is an exploded perspective view thereof. Fig. 6 (a) is an exploded perspective view of the mattress structure of the second embodiment, and Fig. 6 (b) is a cross-sectional view thereof. Fig. 7 (a) is a view showing a slit provided on the lower surface side of the cushion layer of the mattress structure of the second embodiment, and Fig. 7 (b) is a view showing the upper surface side of the fluid filling mat. Fig. 8 is an explanatory view showing a use state of the mattress structure of the second embodiment. Fig. 9 (a) is an exploded perspective view of the mattress structure of the third embodiment, and Fig. 9 (b) is a cross-sectional view showing a state of pressure switching. Fig. 10 (a) is a view showing a slit provided on the lower surface side of the cushion layer of the mattress structure of the third embodiment, and Fig. 10 (b) is a view showing the upper surface side of the fluid filling mat. Fig. 11 is an explanatory view showing a use state of the mattress structure of the third embodiment. Fig. 12 is an explanatory view showing an operation of a gas chamber in a conventional connected air bed. Fig. 13 is an explanatory view showing an operation of a gas chamber in a conventional pressure-switching type air bed.

Claims (9)

A mattress structure comprising: a fluid filling cushion layer having a plurality of fluid chambers; and a buffer layer laminated on an upper surface side of the fluid filling cushion layer, wherein the buffer layer has a fluid filling pad disposed on the fluid filling pad a fluid chamber control mechanism formed by a slit, a convex portion, or a concave-convex portion of a layer between layers, and formed in an adjacent expanded fluid chamber in a state where a fluid is filled in the fluid chamber of the fluid filling cushion layer The between the valleys and the fluid chamber control mechanism of the aforementioned buffer layer are arranged to be opposite. The mattress structure according to claim 1, wherein the fluid chamber control means provided in the buffer layer is a slit, a convex groove or a concave-convex groove continuously formed in one direction. The mattress structure according to claim 1, wherein the fluid chamber control means provided in the buffer layer is a slit formed in a lattice shape or an uneven portion arranged in a line. The mattress structure according to any one of claims 1 to 3, wherein the buffer layer has a hardness of 10 to 500 N (according to JIS K6400-2 "soft foaming material: hardness and compressive stress - strain characteristic" (25% compression) of a resin foam or a three-dimensional network structure. The mattress structure according to any one of claims 1 to 3, further comprising a second buffer layer laminated on a lower side of the fluid filling mat. The mattress structure according to claim 5, wherein in the second buffer layer, a second fluid chamber control mechanism selected from the slit, the convex portion, and the uneven portion is provided on an integrated layer with the fluid filling mat. The mattress structure according to claim 5, wherein the second buffer layer has a hardness of 200 N or more (according to JIS K6400-2 "soft foaming material: hardness and compressive stress - strain characteristic" (25% compression) A resin foam or a three-dimensional network structure. A mattress construction according to any one of claims 1 to 3, wherein said plurality of fluid chambers of said fluid-filled cushion layer are formed by dividing at least one pocket to form a fluid communication with an adjacent fluid-filled chamber. The mattress structure according to any one of claims 1 to 3, wherein the plurality of fluid chambers of the fluid filling cushion layer are formed by a bag body which is freely expandable and contractible independently of each other.