WO2019176525A1 - Cushion - Google Patents

Abstract

This cushion (1) is provided with: a first cushion structure (10) which has a plurality of containing sections (11a, 12a) and a plurality of communication sections (11b, 12b), the plurality of communication sections (11b, 12b) providing communication between the containing sections, and has an elastic member (13) contained therein; and a second cushion structure (20) which is in contact with the first cushion structure (10) from below, has a plurality of containing sections (21a, 22a) and a plurality of communication sections (21b, 22b), the plurality of communication sections (21b, 22b) providing communication between the containing sections, and has an elastic member (13) contained therein. The provided cushion can provide comfortable elasticity.

Description

cushion

The present invention relates to a cushion, and more particularly, to a cushion that can be easily installed and is comfortable to use for a user.

Cushions placed on a seat such as a chair or sofa or used as a mattress for a bed are often used for a long time. For this reason, it is required that the comfort remains even a little during use. In particular, cushions used by patients are expected to play a major role in reducing the burden on patients and improving the quality of life. Therefore, cushions having various structures using gases and liquids have been proposed in order to generate a pressure dispersion effect, rather than simply using a material made of an elastic member such as urethane.
The applicant of the present application has proposed cushions having various structures that improve comfort (for example, Patent Document 1, Patent Document 2, etc.).

Table No. 2016-051832 JP 2014-226219 A

Cushion is used in various applications, but depending on the application, there is a demand not only for a cushion that is thinner and more functional but also for a larger thickness. In the cushion of the structure disclosed in Patent Documents 1 and 2 and the like, if the thickness in the vertical direction is simply increased, the plurality of accommodating portions extend in the vertical direction, so the user moves the center of gravity in the horizontal direction Then, each of the accommodating portions is bent in that direction. In addition to causing breakage of the housing portion due to such bending, a comfortable reaction force cannot be given to the user, and a comfortable elasticity cannot be given.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a cushion capable of giving a comfortable elasticity.

The cushion according to the present invention includes a plurality of storage portions and a plurality of communication portions that communicate between predetermined storage portions of the plurality of storage portions, and an elastic member is stored inside the storage portion. One cushion structure, a lower part of the first cushion structure, a plurality of storage portions, and a plurality of communication portions that connect predetermined storage portions among the plurality of storage portions; And a second cushion structure in which an elastic member is accommodated inside the accommodating portion. By having such a configuration, the thickness can be increased while maintaining the user's comfort.

Furthermore, it is preferable that the first cushion structure and the second cushion structure have a structure that allows the horizontal displacement of each other within a predetermined range. By having such a structure, even if a shearing force is generated when the user's center of gravity moves in the horizontal direction, it becomes possible to follow and relax the movement of the center of gravity.

Further, it is desirable that the accommodating portion of the first cushion structure and the accommodating portion of the second cushion structure are communicated by a communicating portion. Thereby, not only the conventional horizontal direction but also the vertical direction is distributed, and pressure distribution is executed more effectively.

Furthermore, it is desirable that the communication portion that communicates the accommodating portion of the first cushion structure and the accommodating portion of the second cushion structure is composed of a plurality of communicating portions that communicate adjacent accommodating portions. . Thereby, pressure dispersion is performed more quickly.

Further, it is desirable that the housing portion of the second cushion structure is larger in the top view than the housing portion of the first cushion structure. With such a configuration, the entire cushion can be stabilized.

Further, the gap between the accommodating portions adjacent to each other in the first cushion structure may be larger than the gap between the accommodating portions adjacent to each other in the second cushion structure. With such a configuration, the housing portion of the first cushion structure close to the user is more likely to fall, and can follow the movement without being rubbed even when the user moves.

Furthermore, it has a plurality of accommodating portions that are in contact under the second cushion structure and communicate with each other among the plurality of accommodating portions, and inside the accommodating portion. It is good to provide the 3rd cushion structure in which the elastic member was stored. With such a configuration, the thickness can be increased while maintaining the user's comfort.

Here, it is preferable that the third cushion structure includes an air tank that is positioned on the outer side in the horizontal direction with respect to the housing portion of the first cushion structure and the second cushion structure. With such a configuration, the entire cushion can be stabilized.

The second cushion structure may have more accommodating portions than the first cushion structure, and the cushion upper surface may be an inclined surface by arranging the accommodating portions in a step shape. . Thereby, the inclination | tilt angle of the cushion upper surface with respect to a floor surface can be adjusted easily.

Furthermore, a sheet-like member and air amount adjusting means are provided, and a plurality of cell blocks including at least the first cushion structure and the second cushion structure are provided on the upper surface of the sheet-like member so that the vicinity of the center is lowered. It may be arranged, and the air amount for each cell block may be adjusted to an arbitrary amount by the air amount adjusting means. Thereby, the posture of the user who is lying on the sheet-like member can be easily converted.

Further, a control means may be provided, and the control means may execute control of the air amount by the air amount adjusting means. Thereby, a user's body posture can be changed without a human intervention.

The cushion according to the present invention includes a plurality of storage portions and a plurality of communication portions that communicate between predetermined storage portions of the plurality of storage portions, and an elastic member is stored inside the storage portion. One cushion structure, a lower part of the first cushion structure, a plurality of storage portions, and a plurality of communication portions that connect predetermined storage portions among the plurality of storage portions; The seat surface includes a first cushion including a second cushion structure in which an elastic member is accommodated inside the accommodating portion, and a plurality of accommodating portions and predetermined accommodating portions among the accommodating portions A fourth cushion structure body in which an elastic member is housed inside the housing portion, a lower portion of the fourth cushion structure body, and a plurality of housing portions, Predetermined accommodating parts among a plurality of accommodating parts And a plurality of communicating portions for passing a second cushion and a fifth cushion structure elastic member inside the accommodation portion is accommodated with the back, a seat cushion. When having such a configuration, comfort when sitting can be improved.

Here, the first cushion structure body or the second cushion structure body and the fourth cushion structure body or the fifth cushion structure body are communicated with each other through a communication section. Is desirable. With such a configuration, the outer shape of the cushion can be changed not only on the seating surface but also on the back surface according to the movement of the sitting user, and the comfort can be further improved.

The elastic member may not be provided in some of the storage units described above. In other words, the plurality of accommodating portions may include a accommodating portion in which the elastic member is inserted and an accommodating portion in which the elastic member is not included. Here, the elastic member can relieve a feeling of bottoming to some extent even when the air pressure in the accommodating portion (cell) becomes zero, and by the repulsive force of the elastic member when the center of gravity moves. There is also an auxiliary role to restore the compressed air. Furthermore, the feeling of use can be improved by changing the hardness of the elastic body accommodated in the plurality of accommodating portions.

According to the present invention, a cushion capable of giving comfortable elasticity can be provided.

1 is a cross-sectional view illustrating a schematic structure of a cushion according to a first embodiment. 1 is a cross-sectional view illustrating a schematic structure of a cushion according to a first embodiment. FIG. 3 is a top view showing a schematic structure of each component of the cushion according to the first embodiment. FIG. 3 is a top view showing a schematic structure of each component of the cushion according to the first embodiment. FIG. 3 is a top view showing a schematic structure of each component of the cushion according to the first embodiment. 1 is a partial cross-sectional view of a cushion according to a first embodiment. It is a figure for demonstrating the structure of the one component of the cushion concerning Embodiment 1. FIG. It is a figure for demonstrating the structure of the one component of the cushion concerning Embodiment 1. FIG. It is a figure which shows the external appearance of the one component of the cushion concerning Embodiment 1. FIG. It is a figure which shows the external appearance of the one component of the cushion concerning Embodiment 1. FIG. It is a figure which shows the external appearance of the one component of the cushion concerning Embodiment 1. FIG. It is a figure which shows the external appearance of the one component of the cushion concerning Embodiment 1. FIG. It is explanatory drawing which showed the use condition of the cushion. It is a perspective view which shows the external appearance of the cushion concerning Embodiment 2. FIG. It is a perspective view which shows the external appearance of the cushion concerning Embodiment 2. FIG. It is a perspective view which shows the external appearance of the cushion concerning Embodiment 3. FIG. It is a figure which shows the piping structure of the cushion concerning Embodiment 3. FIG. It is a figure which shows the piping structure of the cushion concerning Embodiment 3. FIG. It is sectional drawing which shows the schematic structure of the cushion concerning Embodiment 4. It is sectional drawing which shows the schematic structure of the cushion concerning Embodiment 5. FIG. It is sectional drawing which shows the schematic structure of the cushion concerning Embodiment 6. FIG. It is sectional drawing which shows the schematic structure of the cushion concerning Embodiment 7.

Embodiment 1 of the Invention
Embodiments of the present invention will be described below with reference to the drawings.
Hereinafter, embodiments to which the present invention can be applied will be described. The following description is to describe the embodiment of the present invention, and the present invention is not limited to the following embodiment. For clarity of explanation, the following description is omitted and simplified as appropriate. Moreover, those skilled in the art can easily change, add, and convert each element of the following embodiments within the scope of the present invention.

FIG. 1 is a cross-sectional view showing the structure of the cushion according to the first embodiment. FIG. 1 shows a schematic structure from the viewpoint of ease of explanation. The cushion 1 is used, for example, by placing it on a seating surface of a chair or a sofa. Moreover, the cushion 1 may be installed and used in the seat surface and back surface of the seat chair installed in vehicles, such as a motor vehicle and a train. Moreover, it may be used not only when the user sits down but also when sleeping, in which case it is placed on bedding such as a bed. Further, the cushion 1 may be used to fix the posture of the patient in an operation performed in an orthopedic hospital. In addition, the cushion 1 may be used as a pad used to change the posture of a patient or a care recipient in a medical or nursing care field. That is, the cushion 1 according to the present embodiment can be applied to all kinds of cushions used when taking a posture in which a person sits or a flannel posture. The cushion 1 may be fixed to the installation surface by means such as a hook-and-loop fastener during use.

As shown in the drawing, the cushion 1 has a first cushion structure 10, a second cushion structure 20, and a third cushion structure 30 that are arranged so that their principal surfaces are parallel and in contact with each other. It has. The third cushion structure 30 is provided on the lowermost side, and the second cushion structure 20 is provided on the upper side thereof. The first cushion structure 10 is provided on the upper side of the second cushion structure 20.

Each of the structures 10, 20, and 30 is in a bulging state, for example, 400 to 600 mm in the front-rear and left-right directions, and 30 to 60 mm in the up-down direction (thickness direction). Accordingly, the thickness of the cushion 1 is, for example, 90 mm to 180 mm.

The first cushion structure 10 is provided with a plurality of accommodating portions 11a and 12a spaced apart from each other in the horizontal direction. The accommodating portions 11a and 12a are also referred to as air cells. The first cushion structure 10 as a whole has a quadrangular shape in plan view, and the upper surface thereof has a flat shape having a plurality of irregularities. An elastic member is accommodated in the plurality of accommodating portions 11a and 12a.

The elastic member is a molded body made of porous urethane, for example. The elastic member is compressed according to external pressure, and when the pressure load is released, the elastic member expands and restores its original shape. The elastic member itself may have a so-called waffle structure, lattice structure, honeycomb structure, or the like. The hardness of the elastic member may be different for each storage unit or for each group of a plurality of storage units, or may be the same. The shape of the elastic member may be different for each storage unit or for each group of a plurality of storage units, or may be the same. The elastic member is also provided in the second cushion structure 20 and the third cushion structure 30, but the description thereof is omitted because it is the same material.

The first cushion structure 10 is basically formed by joining together a lower sheet made of a resin film such as a thermoplastic urethane film and a predetermined portion of the upper sheet. For example, the lower sheet is a rectangular sheet in plan view. Further, the upper sheet is composed of a concave and convex sheet in which square columnar convex portions are discretely arranged on the front, rear, left and right. Note that the shape of the convex portion may not be a quadrangular prism shape, but may be another polygonal column shape or a circular dome shape. Further, the shape of the convex portion may be a trapezoidal shape or a stepped shape having a step on the side portion. The first cushion structure 10 according to the first embodiment can also be configured by combining two sets of structures, and the specific structure will be described in detail later.

The second cushion structure 20 is provided with a plurality of accommodating portions 21a and 22a spaced apart from each other in the horizontal direction. The second cushion structure 20 as a whole has a quadrangular shape in plan view, and the upper surface thereof has a flat shape having a plurality of irregularities. An elastic member is accommodated in the plurality of accommodating portions 21a and 22a.

The second cushion structure 20 is basically formed by joining a predetermined portion of a lower sheet and an upper sheet, both of which are made of EVA film. For example, the lower sheet is a rectangular sheet in plan view. Further, the upper sheet is composed of a concave and convex sheet in which square columnar convex portions are discretely arranged on the front, rear, left and right. Note that the shape of the convex portion may not be a quadrangular prism shape, but may be another polygonal column shape or a circular dome shape.

The third cushion structure 30 is provided with a plurality of accommodating portions 31a and a plurality of air tanks 32 spaced apart from each other in the horizontal direction. The second cushion structure 20 as a whole has a quadrangular shape in plan view, and the upper surface thereof has a flat shape having a plurality of irregularities. Elastic members are housed inside the plurality of housing portions 31 a and the plurality of air tanks 32.

The third cushion structure 30 is basically formed by joining a predetermined portion of the lower sheet and the upper sheet, both of which are made of EVA film. For example, the lower sheet is a rectangular sheet in plan view. Further, the upper sheet is composed of a concavo-convex sheet in which square columnar convex portions are formed in a discrete manner on the left and right. Note that the shape of the convex portion may not be a quadrangular prism shape, but may be another polygonal column shape or a circular dome shape.

In the third cushion structure 30, the plurality of storage portions 31 a have substantially the same height, but the air tank 32 is higher than the plurality of storage portions 31 a, and the first cushion structure 10, In a state where the two cushion structures 20 are stacked, the cushion structure 20 has a thickness that is approximately the same height as the upper surface of the first cushion structure 10.

The pump 6 is connected to the air tank 32 through the intake / exhaust valve 5. The pump 6 may be a manual pump or an electric pump. When the pump 6 is constituted by an electric pump, a controller (not shown) may be further provided to control the intake / exhaust operation of the electric pump. The controller is configured by a CPU (Central Processing Unit), a memory such as a ROM, a RAM, and the like, and various functions are realized by the CPU reading and executing a control program stored in the memory. Further, instead of the intake / exhaust valve 5, a check valve and a pressure regulating valve may be provided as disclosed in Patent Document 2.

The first cushion structure 10, the second cushion structure 20, and the third cushion structure 30 may have a structure in which they are fixed to each other in a state where they are stacked on top of each other. It may be a structure that only exists. Furthermore, these structures 10, 20, and 30 may be temporarily fixed in a separable state. Such a relationship may be between some structures or between all structures.

As a structure for fixing these structures 10, 20, and 30 to each other, fixing by thermocompression bonding and fixing by an adhesive are exemplified. It is also possible to fix the structures by fitting or engaging each other. However, in the first embodiment, it is desirable that the horizontal shift is allowed within a predetermined range even when the structures 10, 20, and 30 are fixed to each other.

Even when these structures 10, 20, and 30 are not fixed to each other, relative displacement between structures is allowed. In a state where a load from the user is applied to the cushion 1, when a force in the horizontal direction is further applied to the load direction, a relative movement occurs when the static friction force between the structures is exceeded, and a shift occurs. The range of deviation is regulated by, for example, a cover (not shown) that covers the cushion 1. Furthermore, the members may be connected to each other by an elastic member or a non-elastic member so that the shift between the structures is within a predetermined range.

In order to temporarily fix these structures 10, 20, and 30 in a separable state, for example, a hook-and-loop fastener can be used. It is also possible to temporarily fix the structures by fitting or engaging each other. Furthermore, it can be temporarily fixed by another member other than the structures 10, 20, 30.

FIG. 2 is a diagram for explaining a connection relationship between the structures 10, 20, and 30 of the cushion 1. As shown in the figure, the structures 10, 20, 30 are connected to each other so that air can move.

A plurality of communication portions 41 are provided between the first cushion structure 10 and the second cushion structure 20. The typical communication part 41 is comprised by the tubular member, and connects the accommodating parts 11a and 12a of the 1st cushion structure 10, and the accommodating parts 21a and 22a of the 2nd cushion structure 20 mutually. More specifically, one end of the communication portion 41 is communicated with the bottom of the accommodating portions 11a and 12a, and the other end is communicated with the upper surfaces of the accommodating portions 21a and 22a. In addition, the communication part of the communication part 41 may be not only the bottom surface or the top surface but also the side surface of the housing part. The communication portion 41 is desirably formed of a bendable elastic member, but desirably has a hardness that does not bend and block the flow of air. The communication part 41 is formed from a synthetic resin, for example.

A plurality of communicating portions 42 are provided between the second cushion structure 20 and the third cushion structure 30. The typical communication part 42 is comprised by the tubular member, and connects the accommodating parts 21a and 22a of the 2nd cushion structure 20, and the accommodating part 31a of the 3rd cushion structure 30 mutually. More specifically, one end of the communication portion 42 is communicated with the bottom of the accommodating portions 21 a and 22 a, and the other end is communicated with the upper surface of the accommodating portion 30. Note that the communicating portion of the communicating portion 42 may be the side surface of the housing portion as well as the bottom surface and the top surface. The communication portion 42 is desirably formed of a bendable elastic member, but desirably has a hardness that does not bend and block the flow of air. The communication part 42 is formed from a synthetic resin, for example.

The communication portions 41 and 42 may be formed of tubular members having the same inner diameter, but may be different. For example, the communicating portions 41 and 42 for which the air passage amount is desired to be increased are formed into thick tubular members having a larger inner diameter.

Subsequently, the configurations of the first cushion structure 10, the second cushion structure 20, and the third cushion structure 30 will be further described with reference to the top view shown in FIG.

FIG. 3A shows a top view of the first cushion structure 10. Two types of accommodating portions 11a and 12a are alternately arranged on the front, rear, left and right. In this example, the adjacent accommodating portions 11a and 12a are arranged at equal intervals. In this example, four in the front-rear direction and six in the left-right direction are arranged, and a total of 24 accommodating portions 11a and 12a are provided. However, the number may be larger than 24, or 24. It may be less.

The accommodating portions 11a adjacent in the oblique direction communicate with each other so that the internal air can be moved by the communicating portion 11b. Accordingly, all the accommodating portions 11a in the first cushion structure 10 are in a state in which the internal air can be moved by the plurality of communicating portions 11b.

Further, the accommodating portions 12a adjacent in the oblique direction communicate with each other so that the internal air can be moved by the communicating portion 12b. Accordingly, all the accommodating portions 12a in the first cushion structure 10 are in a state in which the internal air can be moved by the plurality of communicating portions 12b.

The communication portions 11b and 12b are made of tubular members. The communication portions 11b and 12b in the present example extend in an oblique direction so as to connect the corner portions of the quadrangular columnar accommodating portions 11a and 12a in a top view. For this reason, the communication portions 11b and 12b intersect each other vertically.

FIG. 4 shows a IV-IV cross section of FIG. 3A. As shown in FIG. 4, the first cushion structure 10 is formed by joining predetermined portions of the lower seat 102 and the upper seat 101. Each of the accommodating portions 11a and 12a accommodates an elastic member 13 having a shape slightly smaller than the internal shape thereof. The elastic member 13 is not joined to either the upper sheet 101 or the lower sheet 102, and moves freely in the internal spaces of the accommodating portions 11a and 12a. Note that the elastic member 13 may be smaller in the vertical direction than the internal space of the accommodating portions 11a and 12a, for example, so as to have a height of 1/2 to 2/3. In such a configuration, the elastic force due to the internal air is transmitted to the user preferentially over the elastic force due to the elastic member 13. Moreover, you may make it the cross-sectional shape of accommodating part 11a, 12a become small as it goes upwards stepwise. In this case, the elastic member 13 has an outer shape that fits in the lowermost internal space, and is smaller than the upper internal space. By doing so, the elastic member 13 can be accommodated in the lower portion of the accommodating portions 11a, 12a, and the internal space of the upper portion can be configured such that only air exists.

The first cushion structure 10 in this example may be configured by combining two sets of structures 110 and 120 as shown in FIGS. 5A and 5B. The two sets of structures 110 and 120 can be provided with a communication portion or the like through which air can be taken in and out, respectively. Thereby, the air inflow amount of one structure and the other structure can be changed. FIG. 5A shows the lower structure 110. The lower structure 110 includes a plurality of accommodating portions 11a, a communicating portion 11b that allows them to communicate with each other, and an outer frame 11c that is integrated with the accommodating portion 11a that is located outside. The upper structure 120 shown in FIG. 5B includes a plurality of accommodating portions 12a, a communicating portion 12b that allows them to communicate with each other, and an outer frame 12c that is integrated with the accommodating portion 12a that is located outside.

When the upper structure 120 is overlaid on the lower structure 110, the accommodation portion 11a of the lower structure 110 protrudes from the gaps between the plurality of accommodation portions 12a in the upper structure. The first cushion structure 10 can be formed by joining the outer frame body 11c and the outer frame body 12c in the state of being overlapped in this manner.

The external appearance of the first cushion structure 10 is shown in FIG. 6A is a top view, FIG. 6B is a front side view, FIG. 6C is a right side view, and FIG. 6D is a perspective view. The accommodating portions 11a and 12a of the first cushion structure 10 in this example have rounded corners.

FIG. 3B is a top view showing the configuration of the second cushion structure 20. Two types of accommodating portions 21a and 22a are alternately arranged on the front, rear, left and right. In this example, the adjacent accommodating portions 21a and 22a are arranged at equal intervals. In this example, two in the front-rear direction and three in the left-right direction are arranged, and a total of six accommodating portions 21a and 22a are provided. However, the number may be larger than six, or six. It may be less.

The accommodating portions 21a adjacent to each other in the oblique direction communicate with each other so that the internal air can move through the communicating portion 21b. Therefore, all the accommodating parts 21a in the second cushion structure 20 are in a state in which the internal air can be moved by the plurality of communicating parts 21b.

Further, the accommodating portions 22a adjacent to each other in the oblique direction communicate with each other so that the internal air can be moved by the communicating portion 22b. Accordingly, all the accommodating portions 22a in the second cushion structure 20 are in a state in which the internal air can be moved by the plurality of communicating portions 22b.

The communication portions 21b and 22b are constituted by tubular members. The communication portions 21b and 22b in the present example extend in an oblique direction so as to connect the corner portions of the quadrangular columnar accommodating portions 21a and 22a in a top view. For this reason, the communication portions 21b and 22b cross each other vertically.

The accommodating portions 21a and 22a have the same size. Each of the accommodating portions 21a and 22a is larger than the accommodating portions 11a and 12a of the first cushion structure 10 in a top view. In this example, the outer surfaces of the four accommodating portions 11a and 12a in the arranged state have a size that matches the outer surface of one of the accommodating portions 21a and 22a. In other words, each of the accommodating portions 21a and 22a in this example has a size that is four times or more that of the accommodating portions 11a and 12a. Thus, the size of the accommodating portions 21a and 22a of the second cushion structure 20 located in the lower stage is larger than the size of the accommodating portions 11a and 12a of the first cushion structure 10 located in the upper stage, The second cushion structure 20 can hold the first cushion structure 10 more stably.

Each of the accommodating portions 21a and 22a accommodates an elastic member having a shape slightly smaller than the internal shape thereof. The elastic member is not joined to either the upper sheet or the lower sheet, and moves freely in the internal space of the accommodating portions 21a and 22a. Note that the elastic member may be made smaller in the vertical direction than the internal space of the accommodating portions 21a, 22a, for example, to be 1/2 to 2/3. In such a configuration, the elastic force due to the internal air is transmitted to the user preferentially over the elastic force due to the elastic member. Moreover, you may make it the cross-sectional shape of accommodating part 21a, 22a become small as it goes upwards stepwise. In this case, the elastic member has an outer shape that fits in the lowermost internal space, and is smaller than the upper internal space. By doing so, the elastic member can be accommodated in the lower portion of the accommodating portions 21a, 22a, and the internal space of the upper portion can be configured such that only air exists.

The second cushion structure 20 may be configured by combining two sets of structures in the same manner as the first cushion structure 10.

FIG. 3C is a top view showing the configuration of the third cushion structure 30. Two accommodating portions 31a are arranged on the left and right. Further, an air tank 32a is provided outside the accommodating portion 31a. In this example, the adjacent accommodating parts 31a are arranged at equal intervals. Moreover, in this example, although the two accommodating parts 31a are provided in the left-right direction, there may be more than two. The accommodating portions 31a communicate with each other so that the internal air can move through the communicating portion 31b. The accommodating portion 31a and the air tank 32a are also communicated so that the internal air can be moved by the communicating portion 31c. The communication portions 31b and 31c are constituted by tubular members.

The accommodating portions 31a have the same size. Each of the accommodating portions 31a is larger than the accommodating portions 11a and 12a of the first cushion structure 10 in a top view, and further larger than the accommodating portions 21a and 22a of the second cushion structure 20. Each size of the accommodating part 31a in this example has the magnitude | size of 2 times or more of one of the accommodating parts 21a and 12a. Thus, since the size of the accommodating portion 31a of the third cushion structure 30 located in the lower stage is larger than the size of the accommodating portions 21a and 22a of the second cushion structure 20 located in the upper stage, the third This cushion structure 30 makes it possible to hold the first cushion structure 10 and the second cushion structure 20 more stably.

Each of the accommodating portion 31a and the air tank 32a accommodates an elastic member having a shape slightly smaller than the internal shape thereof. The elastic member is not joined to either the upper sheet or the lower sheet, and moves freely on the internal space of the accommodating portion 31a and the air tank 32a. Note that the elastic member may be made smaller in the vertical direction than the internal space of the accommodating portion 31a and the air tank 32a, for example, to be 1/2 to 2/3. In such a configuration, the elastic force due to the internal air is transmitted to the user preferentially over the elastic force due to the elastic member. Moreover, you may make it the cross-sectional shape of the accommodating part 31a and the air tank 32a become small as it goes upwards stepwise. In this case, the elastic member has an outer shape that fits in the lowermost internal space, and is smaller than the upper internal space. By doing so, the elastic member can be accommodated in the lower portion of the accommodating portion 31a and the air tank 32a, and the internal space of the upper portion can be configured such that only air exists.

As described above, each of the first cushion structure 10, the second cushion structure 20, and the third cushion structure 30 stacked in the vertical direction includes a plurality of accommodating portions that accommodate elastic members. . The plurality of accommodating portions communicate with each other so that air can be moved by the communicating member. Further, the structures 10, 20, 30 communicate with each other so that the air can move through the communication portion. Since the cushion 1 has such a structure, all of the accommodating portions of the structures stacked in a multilayer form one space in which air can move. Therefore, when the weight of the user is added to the cushion 1, the pressure dispersion effect is generated by the so-called Pascal principle regardless of the external shape of a part of the user in contact with the cushion 1. Equivalent pressure is applied.

In addition, the first cushion structure 10 and the second cushion structure 20 and the second cushion structure 20 and the third cushion structure 30 are respectively communicated by a plurality of communication portions, Since the adjacent accommodating parts communicate with each other so that the communication part is shortened, the air flow can be minimized and pressure dispersion can be achieved more quickly.

Here, the state when the user uses the cushion 1 according to the present embodiment will be described with reference to FIG.
In order to make the cushion 1 usable, the pump 6 is operated and air is supplied to the accommodating portion. Basically, air is supplied to all the accommodating portions, and the pump 6 is stopped when a predetermined air pressure is reached. At this time, the cushion 1 is in an inflated state with no load applied.

FIG. 7 shows a state where the user is sitting on the cushion 1. When the user sits on the cushion 1, the cushion 1 is compressed in the vertical direction by the weight W of the user. In detail, the elastic member accommodated in the accommodating part of the cushion 1 located under and around the user's buttocks is compressed in the vertical direction. As for this, not only the 1st cushion structure 10, but the elastic member accommodated in the accommodating part of the 2nd cushion structure 20 or the 3rd cushion structure 30 is compressed up and down.

When the elastic member is compressed, the air a inside the elastic member is also compressed, and the elastic member moves toward a smaller load, that is, a direction in which the elastic member has fewer dents. The air a further moves between the first cushion structure 10, the second cushion structure 20, and the third cushion structure 30.

When the weight W of the user and the force obtained by adding the elastic force sf of the elastic member and the pressure af of the air a are balanced, the cushioning property of the cushion 1 is maintained constant, and the cushion 1 Since the contact area with the buttocks increases and the body pressure is dispersed, it is possible to give comfort to the user.

Furthermore, when the user moves not only in the vertical direction (normally the vertical direction) to which the weight W is applied but also moves the center of gravity, a force in the front / rear / right / left direction (horizontal direction) is applied to the cushion 1. When such a force is applied, if the cushion is fixed on the bottom surface, a shearing force is temporarily generated. In the case of a cushion with a relatively thick integral structure, if the cushion itself is highly flexible, it is greatly deformed by the shearing force, and the user's comfort is deteriorated. Further, if the cushion itself has a high hardness, the deformation hardly occurs even by the shearing force, and the bottom surface slips. This also deteriorates the user's comfort.

The cushion 1 according to the present embodiment has a configuration that can allow a horizontal shift within a predetermined range among the one cushion structure 10, the second cushion structure 20, and the third cushion structure 30. Therefore, even if a shearing force is temporarily applied, it can be mitigated, and it is possible to prevent deterioration of the user's comfort.

Embodiment 2 of the Invention
The cushion according to the second embodiment of the invention is used to lift the lower body of the patient by a predetermined angle on the operating table. More specifically, the patient puts this cushion so that the toes are higher on the lower side of the leg from the thigh to the toes when lying on the skin. By using this cushion, the patient's body can form a natural S-shaped curve in side view.

8 and 9, the configuration of the cushion 1 according to this embodiment will be described. As shown in FIG. 8, the cushion 1 is composed of ten cushion structures 10-100. The cushion structure 10 has six accommodating portions arranged in a line. The cushion structure 20 has twelve storage portions arranged in two rows. The cushion structure 30 has 18 accommodating portions arranged in three rows. Similarly, as the cushion structures 40 to 100 are also moved downward, the accommodating portions are arranged so as to increase one by one. Since the structure of the accommodating part is the same as that of the first embodiment, detailed description thereof is omitted.

The ten cushion structures 10 to 100 are arranged so as to be stacked in the vertical direction in use. At this time, since the cushion structures 10 to 100 increase by one row as they go downward, the rightmost row in FIG. 8 has ten stages of accommodating portions stacked. In the column on the left, there are nine stacks of storage. Similarly, the number of steps decreases toward the left. Thus, the cushion 1 concerning this embodiment comprises the inclined surface inclined on the stairs.

The patient support 7 is mounted on the inclined surface of the cushion 1. The patient support 7 and the cushion structure 100 located at the lowermost position are joined to each other in such a manner that the angle of both is variable. The lower surface of the patient support 7 is in contact with the upper corners of the accommodating portions of the cushion structures 10 to 90, but they are not joined.

The housing part of the cushion 1 can adjust the internal air pressure using a pump, a valve, and the like, as in the first embodiment of the invention. Here, each of the accommodating portions may be connected to one tubular member as a whole so that the air pressure can be adjusted by one pump and valve. It may be connected to.

If the air pressure in the accommodating part of the cushion 1 is adjusted, the angle of the patient support 7 can be adjusted. That is, when air is supplied from the pump so as to increase the air pressure of the housing portion, the housing portion swells greatly, and the amount increases accordingly. In the cushion 1 according to the present embodiment, since the number of steps of the housing portion increases toward the right side, the increase in height increases as it goes to the right side. Since the number of accommodating portions increases for each row, the increase in height also increases accordingly. That is, when the air pressure of the housing portion is increased, the angle of the upper surface of the cushion 1 with respect to the floor surface is increased by that amount while maintaining a straight line in a side view. In other words, the amount of air injected and the angle of the upper surface of the cushion 1 (the angle of the main surface of the patient support 7) are substantially directly proportional. In the state shown in FIG. 8, the angle of the main surface of the patient support base 7 with respect to the floor surface is about 20 degrees. When the angle of the upper surface of the cushion 1 is about 20 degrees, the patient's leg is lifted to the heel side about the hip joint or the like by about 20 degrees. In the state shown in FIG. 9, the angle of the main surface of the patient support 7 with respect to the floor surface is about 30 degrees. When the angle of the upper surface of the cushion 1 is about 30 degrees, the patient's leg is lifted to the heel side about the hip joint or the like by about 30 degrees.

As described above, according to the cushion according to the present embodiment, the cushion structure having a plurality of accommodating portions is stacked in a plurality of layers, and the accommodating portion constituting the upper surface of the cushion is stepped. In addition, since the number of accommodating portions included in each cushion structure is different, the inclination angle of the upper surface of the cushion can be adjusted very easily by adjusting the air pressure of the accommodating portion. Conventionally, the inclined surface is formed by stacking and shifting a plurality of cushions made of urethane, but compared to this, the inclined surface can be formed extremely accurately and easily.

In particular, if the pipe is configured so that the air flows to the plurality of accommodating portions communicate with each other, it becomes easy to adjust the plurality of accommodating portions to the same air pressure, so that the inclined surface can be made closer to a flat surface, The same reaction force can be generated even when gravity is applied.

In the examples shown in FIGS. 8 and 9, the number of accommodating portions is set so that the number of accommodating portions decreases by one step for each column from the right side to the left side. You may make it decrease more. Moreover, you may make it reduce one step | paragraph or two steps | paragraphs or more for every several rows. Furthermore, even if the inclined surface formed by the upper surface of the cushion is not a flat surface, it can be an arbitrary surface (curved surface, stepped surface, etc.) by changing the number and position of the accommodating portions of each cushion structure. Is possible.

Furthermore, in the example shown in FIGS. 8 and 9, the size of the accommodating portion is the same for each cushion structure, but it is better to increase the size downward. In other words, the upper portion is a housing portion smaller than the lower cushion structure. And it is good to supply air with respect to the cushion structure of a comparatively big accommodating part so that it may be transmitted to the upper cushion structure little by little. With such a structure, since the accommodating portion having a large volume swells first, it swells first from the side of the cushion structure (for example, the cushion structure 90 or 100) in contact with the lower side of the patient support base 7. Accordingly, the lifting force from below is transmitted from the cushion structure to the position where the patient support base 7 is low, that is, the position where it is gradually increased from the root position. For this reason, when the patient support base 7 has a certain degree of flexibility, the patient feels that the patient can be lifted little by little from the lower thigh portion to the higher foot portion. You can feel the touch

Embodiment 3 of the Invention
The cushion according to the present embodiment functions as a postural change pad used in medical treatment or nursing care. Preferably, this cushion is used for patients and care recipients who need to change their sleeping position, for example every 2 hours, to prevent pressure ulcers.

FIG. 10 is a perspective view of the cushion according to the present embodiment. As shown in the figure, six cell blocks 8 a to 8 f are installed on the upper surface of the sheet-like member 800. Since each cell block 8a to 8f has basically the same configuration, the cell block 8a will be described as a representative.

The cell block 8a is composed of three cushion structures, each of which is stacked in the vertical direction. The cushion structure located in the uppermost layer has a structure in which three accommodating portions are arranged in a line. The cushion structure located in the middle has a structure in which three accommodating portions are arranged in two rows. The cushion structure located in the lower layer has a structure in which three accommodating portions are arranged in three rows. These three cushion structures are arranged and integrated so that a row in which the accommodating portions overlap in three stages, a two-tiered row, and a single-tiered row are arranged in the vertical direction. As a result, the cell block 8a is stepped as shown in FIG. The accommodating part accommodates the elastic member as in the first embodiment.

The cell blocks 8a, 8c, 8e are arranged in the longitudinal direction along the side portion of the sheet-like member 800. These cell blocks 8a, 8c, 8e are arranged in such a direction that the upper surface becomes lower toward the vicinity of the center of the sheet-like member 800. The cell blocks 8b, 8d, and 8f are arranged in the longitudinal direction along the side portion of the sheet-like member 800. These cell blocks 8b, 8d, and 8f are arranged in such a direction that the upper surface becomes lower toward the vicinity of the center of the sheet-like member 800.

The cushion 1 is used as a so-called mattress, and a patient or the like is used while sleeping in the longitudinal direction of the cushion 1. In other words, the head of the patient or the like is positioned closer to the end side in the longitudinal direction than the cell blocks 8a and 8b, and the vicinity of the shoulder of the patient or the like is positioned near the cell blocks 8a and 8b. The cell blocks 8c and 8d support the vicinity of the waist of a patient or the like. The cell blocks 8e and 8f support the vicinity of the knee from the upper leg of a patient or the like.

Fig. 11 shows the connection of the piping of the cushion 1 and the pump. FIG. 11A shows a top view and FIG. 11B shows a side view. As shown in the figure, each of the cell blocks 8a to 8f is connected to the pump 6 by a piping member 9, and the air pressure can be adjusted independently.

That is, in a preferred example, the pump 6 is provided for each of the cell blocks 8a to 8f, and six pumps are provided here. However, the number of pumps does not necessarily have to be the same as the number of cell blocks as long as the amount of air supplied to each cell block 8a to 8f and the exhaust amount can be adjusted. Adjustment of the air pressure (amount) by the pump can be automatically performed by a control unit (not shown). For example, control is performed to adjust the air amount of each cell block every predetermined time.

In one cell block 8, the upper layer accommodating portion 81, the middle layer accommodating portions 821, 822, and the lower layer accommodating portions 831, 832, 833 are all connected to the pump 6 by the piping member 9.

When the patient or the like is lying on the cushion 1, the force applied from the cushion 1 to the patient or the like and the position of the contact point can be changed by adjusting the air pressure (air amount) of the cell blocks 8a to 8f. For example, in FIG. 10, by making the air amount of the cell blocks 8a, 8c, 8e located on the left side larger than the cell blocks 8b, 8d, 8f located on the right side, It can be made higher than the upper surface of the part. At this time, since the inclination angle of the upper surface of the left accommodating portion is larger than the inclination angle of the upper surface of the right accommodating portion, the patient and the like can change their positions so that their left side is downward.

Furthermore, if the height of the head side cell blocks 8a and 8b is made higher than the other blocks, if the patient or the like is lying on his back, a force can be applied from below in the direction to get up.

According to the present embodiment, since the height and inclination angle of the cell block 8 can be changed, the posture of the patient or the like can be easily changed. Thereby, it is possible to prevent pressure ulcers of care recipients and to reduce the burden on caregivers and the like.

Embodiment 4 of the Invention
FIG. 12 is a cross-sectional view of the cushion according to the fourth embodiment. The cushion concerning this Embodiment 4 is a cushion used for the bed which a patient sleeps, for example. This cushion has the same size as the mattress. FIG. 12 schematically shows a cross section in the longitudinal direction. The cross section in the short direction has a similar structure. As shown in the figure, this cushion has a three-layer structure of cushion structures 201-203.

The cushion structure 201 is located in the lowermost layer and has a plurality of accommodating portions. The cushion structure 202 is located in the intermediate layer, and its accommodating portion is smaller than the accommodating portion of the cushion structure 201. The cushion structure 203 is located in the uppermost layer, and its accommodating portion is smaller than the accommodating portion of the cushion structure 202. The accommodating portion between the cushion structure 201 and the cushion structure 202 has a structure that allows air to flow in and out through the communication member. The accommodating portion between the cushion structure 202 and the cushion structure 203 also has a structure that allows inflow and outflow of air by the communication member. The accommodating portions in each of the cushion structures 201 to 203 are also communicated with each other by the communicating member.

Any of the cushion structures 201 to 203 may be connected to a manual or electric pump. Moreover, you may make it provide the valve which maintains the same air pressure as air | atmosphere, without connecting a pump.

Further, the gap between the adjacent accommodating portions in the cushion structure 203 is larger than the gap between the adjacent accommodating portions in the cushion structure 202 and the cushion structure 201. Therefore, when a horizontal force, that is, a shearing force is applied to the cushion, the housing portion of the uppermost cushion structure 203 is more likely to fall sideways than the housing portions of the cushion structures 202 and 201.

Therefore, when such a shearing force is applied, the accommodating portions of the cushion structure 201 and the cushion structure 202 are unlikely to fall sideways, so that the patient can be supported stably. On the other hand, since the accommodating portion of the cushion structure 203 is relatively easy to fall sideways, the accommodating portion of the cushion structure 203 easily follows the direction of movement even when the patient moves sideways on the bed. For this reason, since the rubbing hardly occurs between the upper surface of the cushion structure 203 and the patient's body, the patient's skin can be protected.

In addition, since the accommodating portion of the cushion structure is smaller as it goes to the upper layer, when air is introduced from the cushion structure 201, 202 of the lowermost layer or the middle layer, the cushion structure 203 of the uppermost layer swells last. In other words, the cushion structure 203 swells later than the lowermost or middle-layer cushion structures 201 and 202 and swells later. This is because the accommodating portion is small and more accommodating portions exist, so that there are more wall surfaces that obstruct the air flow. Therefore, if the inflow of air is stopped before completely inflating the accommodating portions of all the cushion structures 201 to 203, even if the cushion structure 201 and the cushion structure 202 are almost completely inflated, The cushion structure 203 is in a soft state. For this reason, since the shape of the uppermost cushion structure 203 changes along the shape of the body of the patient or the like, a so-called grip is generated, and the patient can receive a wrapped sensation from the cushion.

The elastic members are accommodated in the cushion structures 201 to 203 as in the first embodiment of the invention. As the elastic member, materials having different elastic forces can be used. For example, urethane materials, styrene materials, 3D mesh materials, breath air materials, and hollow fiber materials having different elastic forces can be used. By using materials having different elastic forces, the change in size when air is introduced can be changed. For example, when air is introduced from a state in which air is evacuated, the accommodating portion that accommodates an elastic member having a relatively large elastic force is larger than the accommodating portion that accommodates an elastic member having a relatively small elastic force. It will swell quickly.

For example, if the elastic force of the elastic member accommodated in the accommodating portion is reduced as it goes to the upper layer, it swells first from the lower layer, and later swells as it goes to the middle layer and upper layer. By adopting such a structure, after the lower layer stably swells, the container part that comes into contact with the patient finally swells, so that the container part of the uppermost layer may change to a shape along the patient's body. It becomes possible.

Embodiment 5 of the Invention
FIG. 13 is a cross-sectional view of the cushion according to the fifth embodiment. The cushion according to the fifth embodiment is attached to, for example, a train or an aircraft seat. In addition, the cushion may be attached to a seat such as a passenger car or a truck, or a chair, although the size and the mounting position are different.

This cushion is attached to the seat plate 300a and the back plate 400a. That is, this cushion is installed on the seat surface and the back surface of the seat. The angle between the seat plate 300a and the back plate 400a may be varied by a reclining mechanism (not shown).
Four layers of cushion structures 301 to 304 are provided on the upper surface of the seat plate 300a. Basically, the larger the cushion structure, the smaller the size of the accommodating portion. The accommodating portion between the cushion structure 301 and the cushion structure 302 has a structure that allows air to flow in and out through the communication member. The accommodating portion between the cushion structure 302 and the cushion structure 303 also has a structure that allows air to flow in and out through the communication member. The accommodating portion between the cushion structure 303 and the cushion structure 304 also has a structure that allows inflow and outflow of air by the communication member. The accommodating portions in each of the cushion structures 301 to 304 are also communicated with each other by the communicating member.

Three layers of cushion structures 401 to 403 are provided on the upper surface of the back plate 400a. Basically, the size of the accommodating portion is smaller as the upper cushion structure (the cushion structure closer to the user's back). The accommodating portion between the cushion structure 401 and the cushion structure 402 has a structure that allows air to flow in and out through the communication member. The accommodating portion between the cushion structure 402 and the cushion structure 403 also has a structure that allows inflow and outflow of air by the communication member. The accommodating portions in each of the cushion structures 401 to 403 are also communicated with each other by the communicating member. The accommodating part accommodates the elastic member as in the first embodiment.

In addition, the structure between the cushion structures 301 to 304 attached to the seat plate 300a and the cushion structures 401 to 403 attached to the back plate 400a allows air to flow in and out by the communication member. is doing. For example, the communication member is provided between the cushion structure 301 and the cushion structure 401.

Since this cushion has such a structure, for example, when a user sits down and pressure is applied to the cushion structure on the seat plate, air flows to the cushion structure side attached to the back plate. When the user performs an operation of re-sitting, an air flow is generated between the plurality of storage units, so that each of the storage units changes into a shape corresponding to the user's sitting posture. As a result, the force received by the user from the cushion changes, so that comfort can be maintained even when sitting on the cushion for a long time.

In addition, since the accommodating portion of the cushion structure is smaller toward the upper layer, when air is introduced from the lowermost or middle cushion structure 301, 302, the upper cushion structure 303, 304 swells later. Therefore, if the inflow of air is stopped before completely inflating the accommodating portions of all the cushion structure bodies 301 to 304, even if the cushion structure body 301 and the cushion structure body 302 are almost completely inflated, The cushion structures 303 and 304 are in a soft state. For this reason, since the shape of the cushion structures 303 and 304 changes along the outer shape of the user's body, a so-called grip feeling is generated, and the user can receive a wrapped feeling from the cushion.

Embodiment 6 of the Invention
The cushion according to the present embodiment shown in FIG. 14 is used as a mattress for a passenger ship. As shown in the figure, this cushion has a three-layer structure of cushion structures 501 to 503.

The cushion structure 501 is located in the lowermost layer and has a plurality of accommodating portions. The cushion structure 502 is located in the intermediate layer, and its accommodating portion is smaller than the accommodating portion of the cushion structure 501. The cushion structure 503 is located in the uppermost layer, and its accommodating portion is smaller than the accommodating portion of the cushion structure 502. The accommodating portion between the cushion structure 501 and the cushion structure 502 has a structure that allows air to flow in and out through the communication member. The accommodating portion between the cushion structure 502 and the cushion structure 503 also has a structure that allows inflow and outflow of air by the communication member. The accommodating portions in the respective structures of the cushion structures 501 to 503 are also communicated with each other by the communicating member. The accommodating part accommodates the elastic member as in the first embodiment.

The cushion structures 501 to 503 are not connected to a pump and are provided with a valve that maintains the same air pressure as the atmosphere.

The cushion according to the present embodiment can also achieve the same effects as the fifth and sixth embodiments.

Embodiment 7 of the Invention
FIG. 15 is a cross-sectional view of the cushion according to the seventh embodiment. The cushion according to the seventh embodiment functions as a mattress of a bed on which a patient sleeps. The bed to which the cushion of the seventh embodiment is attached has a back plate that supports the back when the patient sits down.

This cushion is attached to the floor board 600a and the back board 700a. The angle between the floor plate 600a and the back plate 700a may be varied by a reclining mechanism (not shown).
Two layers of cushion structures 601 and 602 are provided on the upper surface of the floor board 600a. Basically, the larger the cushion structure, the smaller the size of the accommodating portion. The accommodating portion between the cushion structure 601 and the cushion structure 602 has a structure that allows inflow and outflow of air by the communication member. The accommodating portions in the respective structures of the cushion structures 601 and 602 are also communicated with each other by the communication member.

Two layers of cushion structures 701 and 702 are provided on the upper surface of the back plate 700a. Basically, the upper layer cushion structure (the cushion structure closer to the patient's back) has a smaller size of the accommodating portion. The accommodating portion between the cushion structure 701 and the cushion structure 702 has a structure that allows air to flow in and out through the communication member. The accommodating portions in the respective structures of the cushion structures 701 and 702 are also communicated with each other by the communication member.

The cushion according to the present embodiment can also achieve the same effects as the fifth and sixth embodiments. Furthermore, according to this Embodiment, it has not only the function as a bed but the function as a seat chair, and especially a patient can move easily from the sleeping state to the sitting state.

Other embodiments.
Note that the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, although the cushion 1 uses air as a gas, the present invention is not limited thereto, and nitrogen, helium, other gases that are harmless to the human body may be used, or a mixture of these gases may be used. .

In the cushion 1 according to the first embodiment, air is supplied from the pump 6 to the air tank 32 as shown in FIG. 1, but is supplied to the housing portion of another structure. Also good. Further, the number of air supply means constituted by the pump 6 and the like is not limited to one and may be plural. For example, an air supply body may be provided for each of the first cushion structure 10, the second cushion structure 20, and the third cushion structure 30. Furthermore, you may make it supply air to several places using a branch pipe from one air supply body.

In the cushion 1 according to the first embodiment, the convex housing portions are connected to each other in a state of facing upward, but the present invention is not limited thereto. For example, the first cushion structure 10 and the third cushion structure may be combined so that the housing portion is positioned on the upper surface, and the second cushion structure 20 may be combined so that the housing portion is positioned on the lower surface.

The cushion 1 according to the first embodiment is configured by combining three structures of the first cushion structure 10, the second cushion structure 20, and the third cushion structure 30. It is sufficient if there are two or more. For example, it is possible to combine four structures or five structures.

In the cushion 1 according to the first embodiment, the sizes of the accommodating portions of the first cushion structure 10, the second cushion structure 20, and the third cushion structure 30 are changed for each structure. However, the present invention is not limited to this, any two structures may be the same, and all may be the same size.

This application claims priority based on Japanese Patent Application No. 2018-045085 filed on Mar. 13, 2018, the entire disclosure of which is incorporated herein.

1 cushion, 10 first cushion structure, 20 second cushion structure, 30 third cushion structure, 11a, 12a, 21a, 22a, 31a accommodating part, 32 air tank, 11b, 12b, 21b, 22b, 31b, 31c communication part, 41, 42 communication part

Claims (14)

1. A first cushion structure having a plurality of accommodating portions and a plurality of communicating portions communicating between predetermined accommodating portions of the plurality of accommodating portions, wherein an elastic member is accommodated inside the accommodating portion;
   The first cushion structure is in contact with the lower part of the cushion structure, and has a plurality of storage portions and a plurality of communication portions that connect predetermined storage portions among the plurality of storage portions, and an elastic member inside the storage portion. And a second cushion structure in which is housed.
2. 2. The cushion according to claim 1, wherein the first cushion structure and the second cushion structure have a structure that allows a horizontal displacement between the first cushion structure and the second cushion structure within a predetermined range. .
3. The cushion according to claim 1 or 2, wherein the accommodating portion of the first cushion structure and the accommodating portion of the second cushion structure are communicated by a communicating portion.
4. The communicating portion that communicates the accommodating portion of the first cushion structure and the accommodating portion of the second cushion structure is composed of a plurality of communicating portions that communicate adjacent accommodating portions. The cushion according to claim 3.
5. The cushion according to any one of claims 1 to 4, wherein the housing portion of the second cushion structure is larger in top view than the housing portion of the first cushion structure.
6. 6. The gap between adjacent accommodating portions in the first cushion structure is larger than the gap between adjacent accommodating portions in the second cushion structure. Cushion according to crab.
7. Furthermore, it has a plurality of accommodating portions that are in contact under the second cushion structure and communicate with each other among the plurality of accommodating portions, and inside the accommodating portion. The cushion according to claim 1, further comprising a third cushion structure in which an elastic member is accommodated.
8. The cushion according to claim 7, wherein the third cushion structure includes an air tank positioned on the outer side in the horizontal direction with respect to a housing portion of the first cushion structure and the second cushion structure.
9. The second cushion structure has a larger number of accommodating portions than the first cushion structure, and the cushion upper surface has an inclined surface by arranging the accommodating portions in a step shape. The cushion according to claim 1.
10. Furthermore, a sheet-like member and an air amount adjusting means are provided,
    A plurality of cell blocks including at least the first cushion structure and the second cushion structure according to claim 9 are arranged on the upper surface of the sheet-like member so that the vicinity of the center is low, and the air amount adjusting means The cushion which adjusted the air quantity with respect to each cell block to arbitrary quantity.
11. Furthermore, a control means is provided,
    The cushion according to claim 10, wherein the control means executes control of the air amount by the air amount adjusting means.
12. A first cushion structure having a plurality of accommodating portions and a plurality of communicating portions communicating between predetermined accommodating portions of the plurality of accommodating portions, wherein an elastic member is accommodated inside the accommodating portion;
    The first cushion structure is in contact with the lower part of the cushion structure, and has a plurality of storage portions and a plurality of communication portions that connect predetermined storage portions among the plurality of storage portions, and an elastic member inside the storage portion. A first cushion provided with a second cushion structure in which is stored,
    A fourth cushion structure having a plurality of accommodating portions and a plurality of communicating portions that communicate between predetermined accommodating portions of the plurality of accommodating portions, and an elastic member accommodated inside the accommodating portion;
    The elastic member is provided in contact with a lower portion of the fourth cushion structure and includes a plurality of housing portions and a plurality of communication portions communicating with predetermined housing portions among the plurality of housing portions. A second cushion provided with a fifth cushion structure containing
    Seat cushion.
13. The first cushion structure or the second cushion structure and the fourth cushion structure or the fifth cushion structure are characterized in that housing portions are communicated with each other by a communicating portion. The seat cushion according to claim 12.
14. The cushion according to any one of claims 1 to 13, wherein an elastic member is not provided in a part of the accommodating portions.

Images