Cushion

Abstract

To provide a comfortable cushion to be easily handled.SOLUTION: A cushion includes first to third elements. The first element includes side parts and a body part which are separably joined with the other adjacent elements. When the first to third elements are folded, the cushion becomes a first folding state where a backrest and a seat surface are formed. When the body part of the first element and the second and third elements are folded and also the side parts of the second element and the first element are aligned along the third elements, the cushion becomes a second folding state where the backrest, armrests, and the seat surface are formed.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a cushion.

Background Art

[0002] As described in Patent Document 1, a sofa bed that can be used as a sofa and a mattress is known. The sofa bed of Patent Document 1 includes a main body part and an auxiliary part, and can be deformed into a sofa and a bed by changing the positions of a first main body piece and a second main body piece included in the main body part and two auxiliary pieces in the auxiliary part.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the sofa bed of Patent Document 1 is configured as a separate member in which the main body part and the auxiliary part are separated, and there has been a hassle in handling when deforming it into a sofa or a bed.

[0005] In one aspect of the present disclosure, an object is to provide a cushion that is easy to handle and has high comfort.

Means for Solving the Problems

[0006] One aspect of the present disclosure is a cushion comprising A (A is an integer of 3 or more) cushioning elements that can be arranged to form a mattress that extends in a first direction from a first end to a second end and extends in a second direction orthogonal to the first direction. Each of the A elements is arranged in the first direction and is coupled to another adjacent element so that it can be folded so as to overlap in the thickness direction of the mattress. The A elements include B (B is an integer of 1 or more) first elements, one second element, and C (C is an integer of 1 or more) third elements. The second element is located between the first element and the third element. The first element is located between the first end of the mattress and the second element. The third element is located between the second end of the mattress and the second element. The first element has side portions located at one or both ends in the second direction and a main body portion, and the side portions and the main body portion are arranged in the second direction. Each of the side portions and the main body portion is separated and is coupled separately to another adjacent element. The cushion becomes a first folded state in which at least the first and second elements and the third element adjacent to the second element are folded so that the first and second elements form a backrest and the third element forms a seating surface. Further, the cushion becomes a second folded state in which at least the main body portion of the first element, the second element, and the third element adjacent to the second element are folded, and the second element and the side portions of the first element are arranged along the third element, so that the main body portion and the second element form a backrest, the side portions form armrests, and the third element forms a seating surface.

[0007] According to the above configuration, a mattress and a sofa can be formed by arranging and folding each element. Further, when the cushion is used as a sofa, the presence or absence of armrests can be selected by changing the position of the side portions of the first element. Therefore, the cushion can be easily deformed into a mattress or a sofa, and when the cushion is used as a sofa, the presence or absence of armrests can be selected, and the user can sit or lie down on the cushion in various postures. Accordingly, a cushion that is easy to handle and has high comfort can be provided.

[0008] One aspect of the present disclosure may define a state in which a mattress is formed by A elements as a deployed state. In the deployed state and the first folded state, a first coupling portion capable of coupling a side portion and a main body portion of the first element may be further provided.

[0009] According to the above configuration, when in the deployed state or the first folded state, it is possible to suppress the side portion from separating from the main body portion. Therefore, the usability of the cushion is improved. In one aspect of the present disclosure, the A elements may include one first element. Outer surfaces forming the first end of the mattress in the main body portion and the side portion of the first element may be defined as the main body back surface and the side back surface, respectively. The first coupling portion may be provided on one of the main body back surface and the side back surface and may be detachable from the other.

[0010] According to the above configuration, when in the deployed state or the first folded state, the side portion and the main body portion can be satisfactorily coupled. In one aspect of the present disclosure, on the side portion, an outer surface facing the main body portion in the first folded state may be defined as an inner surface. The first coupling portion may be provided on the side back surface and may further be detachable from the inner surface.

[0011] According to the above configuration, when in the second folded state, by attaching the first coupling portion to the inner surface, it is possible to suppress the first coupling portion from separating from the side portion forming the armrest, and the usability of the cushion is improved.

[0012] One aspect of the present disclosure may further include a second coupling portion capable of coupling the second element and any one of the third elements in the first and second folded states. According to the above configuration, in the first and second folded states, it is possible to couple the element forming the backrest and the element forming the seat. For this reason, it is promoted that the first and second folded states are maintained, and the usability of the cushion is improved.

[0013] In one aspect of the present disclosure, the outer surfaces forming the sides of the mattress in the second and third elements may be the second and third sides, respectively. The second coupling portion may be provided on one of the second and third sides and may be detachable from the other.

[0014] According to the above configuration, when in the first and second folded states, the second element and the third element can be well coupled. One aspect of the present disclosure may further include a holding portion for holding the second coupling portion on the second or third side provided with the second coupling portion.

[0015] According to the above configuration, when in the unfolded state, it is possible to suppress the second coupling portion from being separated from the second or third side provided with the second coupling portion, improving the usability of the cushion. In one aspect of the present disclosure, each element may be a bag-shaped portion into which fluid can be injected and from which the fluid filled inside can be discharged.

[0016] According to the above configuration, when not in use, the fluid filled in each element can be discharged and each element can be shrunk, making it easy to store and carry the cushion.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0018] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that the embodiments of the present disclosure are not limited to the following embodiments, and various forms can be adopted as long as they belong to the technical scope of the present disclosure.

[0019] [1. Outline of Cushion] The cushion 1 includes first to third elements 2 to 4 that can be arranged to form a rectangular parallelepiped-shaped mattress (see FIGS. 1 and 2). Hereinafter, the first to third elements 2 to 4 will be simply referred to as elements. Each element has cushioning properties, and the cushion 1 is provided with A (A is an integer of 3 or more) elements. In the present embodiment, as an example, A is 4.

[0020] The mattress extends in the first direction 16 from the first end 10 to the second end 11 and also extends in the second direction 17 orthogonal to the first direction 16. Further, hereinafter, the surfaces of the mattress that extend in the first direction 16 and the second direction 17 will be referred to as the first and second surfaces 12 and 13, and the surfaces located at both ends of the mattress in the second direction 17 will be referred to as the side surfaces 14 and 15.

[0021] In the present embodiment, as an example, the first and second surfaces 12 and 13 are rectangular, and the first direction 16 corresponds to the longitudinal direction. However, the present invention is not limited to this, and the first direction 16 may be the short side direction, or the first and second surfaces 12 and 13 may be square.

[0022] Each element extends from one end to the other end of the second direction 17 and is arranged in the first direction 16. Further, each element is coupled to another adjacent element via first and second connecting portions 60 and 61 so that it can be folded so as to overlap in the thickness direction 18 orthogonal to the first and second surfaces 12 and 13 of the mattress (see FIG. 3). Hereinafter, the state in which the elements 2 to 4 are arranged to form the mattress will be described as the deployed state.

[0023] [Configuration of Elements] Each element has, as an example, a hexahedral cushion body 5 and a cover 6 covering the cushion body 5 (see Fig. 3). And each element is coupled to other elements by a coupling portion provided on the cover 6 (details will be described later). Further, an entrance (not shown) that can be opened and closed by a wire fastener or the like is provided on the cover 6, and the cushion body 5 is disposed inside the cover 6 through the entrance.

[0024] The cushion body 5 may be, for example, urethane, or may be a bag-shaped portion (hereinafter referred to as a bag body) filled with granulated cotton, small pieces of urethane, etc., or may be a bag body filled with a fluid such as air or liquid. Further, the cushion body 5 may be configured as a bag body into which a user can inject and discharge a fluid. More specifically, the cushion body 5 may be configured as an airbag into which air can be injected and discharged. Also, in such a case, the cushion body 5 may be made of a waterproof material. Further, when a bag body is used as the cushion body 5, each element may not include the cover 6. And the elements may be coupled to each other in the same manner by a coupling portion provided on the bag body.

[0025] Also, in each element forming the mattress, the outer surfaces forming the first and second surfaces 12 and 13 are respectively defined as the first and second main surfaces, and the outer surface facing another adjacent element is defined as the butting surface. Also, the first and second main surfaces are collectively referred to as the main surface.

[0026] In each element, a coupling portion is provided at both or one of the first and second positions on the cover 6. Note that the first position corresponds to an edge adjacent to the first main surface on the butting surface, and the second position corresponds to an edge adjacent to the second main surface on the butting surface. Also, the coupling portion provided at the first position is referred to as the first coupling portion 60, and the coupling portion provided at the second position is referred to as the second coupling portion 61.

[0027] And for the element located between the two elements, one adjacent element is coupled by the first coupling portion 60, and the other adjacent element is coupled by the second coupling portion 61. As a result, these elements are each folded such that the first main surfaces thereof contact one adjacent element, and are folded such that the second main surfaces thereof contact the other adjacent element. Further, by the butting surfaces of each element facing (in other words, contacting) the butting surfaces of the other adjacent element, each element is deployed with respect to the other adjacent element.

[0028] Also, in the present embodiment, as an example, the number of the first and second elements 2 and 3 is one, and the number of the third elements 4 is two. And the second element 3 is located between the first element 2 and the third elements 4. Further, the first element 2 is located at the first end 10 of the mattress, and the third elements 4 are arranged from the second end 11 toward the second element 3.

[0029] The third element 4 has a rectangular parallelepiped shape, and each butting surface is orthogonal to the main surface. On the other hand, the deployed first and second elements 2 and 3 form a rectangular parallelepiped shape, and the butting surfaces facing each other are inclined at X° with respect to the thickness direction 18. As an example, X is 7, but the value of X is determined as appropriate.

[0030] Also, the first and second elements 2 and 3 are shorter in length in the first direction 16 than the third element 4. [3. Configuration of First Element] The first element 2 includes a main body portion 20 and two side portions 21 (see FIGS. 1, 2, 4 to 7). The main body portion 20 is located at the center in the second direction 17. Each side portion 21 is located at both ends in the second direction 17 and is adjacent to the main body portion 20.

[0031] The main body portion 20 and the two side portions 21 are separated and can be folded separately with respect to the third element 4. That is, the cushion bodies 5 in each of the main body portion 20 and the two side portions 21 are separated members, and covers 6 that cover each of these cushion bodies 5 are provided. And each part of the main body portion 20 and the two side portions 21 is separately coupled to the second element 3 via the second coupling portion 61 of the cover 6 that covers the part.

[0032] [4. First and Second Folded States] By folding each element in the unfolded state, a sofa (or, in other words, a chair) is formed (see FIGS. 5 to 8).

[0033] That is, by folding all of the first to third elements 2 to 4 and stacking them in the thickness direction 18, the first folded state is formed (see FIGS. 5 and 6). In the first folded state, the main body portion 20 and the two side portions 21 of the first element 2 are all folded and overlap the second element 3.

[0034] At this time, the seat 8 is formed by the two overlapping third elements 4, and the seat surface 80 is formed by the first main surface of the third element 4 adjacent to the second element 3. Also, the butting surfaces of the first and second elements 2 and 3 are flush, and due to the above-described X° inclination of these butting surfaces, the inclination of the backrest 7 protruding from the seat surface 80 is formed.

[0035] On the other hand, while folding the main body portion 20 of the first element 2 and the second and third elements 3 and 4, the side portions 21 of the first element 2 and the second element 3 are unfolded and arranged along the first main surface of the third element 4 adjacent to the second element 3, thereby forming the second folded state (see FIG. 7).

[0036] Also in the second folded state, the seat 8 and the seat surface 80 are formed in the same manner as in the first folded state. Further, the butting surface of the main body portion 20 of the first element 2 and the butting surface of the third element 4 are flush, and due to the above-described X° inclination of these butting surfaces, the inclination of the central backrest 70 protruding from the seat surface 80 is formed. Also, two armrests 71 are formed by the side portions 21 of the first element 2. Note that one of the side portions 21 of the first element 2 and the third element 4 may be unfolded to form one armrest 71.

[0037] Note that in the first and second folded states, the side surfaces of the backrest 7 and the seat 8 are formed by the outer surfaces of the plurality of elements 2 to 4, and these side surfaces are flush. In addition to this, in the first or second folded state, while folding the first and second elements 2 and 3 and the third element 4 adjacent to the second element 3, the two third elements 4 may not be folded and may be left unfolded (see FIG. 8). Even in such a case, the backrest 7, the central backrest 70, and the armrest 71 are formed in the same manner.

[0038] [5. First Coupling Portion] The cushion 1 is provided corresponding to each side portion 21 of the first element 2 and includes a first coupling portion 62 capable of coupling the side portion 21 and the main body portion 20 in the unfolded state and the first folded state (see FIG. 6). Hereinafter, the outer surfaces forming the first end 10 of the mattress in the main body portion 20 and each side portion 21 are defined as the main body portion back surface 20A and the side portion back surface 21A, respectively. Also, in each side portion 21, the outer surface facing the main body portion 20 in the first folded state is defined as the inner surface 21B (see FIG. 7).

[0039] The first coupling portion 62 is, for example, a belt-like portion, and a peripheral portion at one end is joined to the side portion back surface 21A of the side portion 21, and a detachable portion is provided near the other end. Also, on the main body portion back surface 20A, detachable portions 62A are provided near each end in the second direction 17. Also, detachable portions 62A are provided on the inner surface 21B of each side portion 21.

[0040] And the detachable portion of the first coupling portion 62 of each side portion 21 is detachable from the detachable portion 62A of the main body portion back surface 20A adjacent thereto and the detachable portion 62A of the inner surface 21B of the side portion 21. Note that these detachable portions may be configured as a hook-and-loop fastener, for example.

[0041] Therefore, in the unfolded state and the first folded state, the detachable portion of the first coupling portion 62 can be attached to the detachable portion 62A of the main body portion back surface 20A, whereby the side portion 21 and the main body portion 20 are coupled. Also, in the second folded state, in the side portion 21 unfolded with respect to the second element 3, the detachable portion of the first coupling portion 62 can be attached to the detachable portion 62A of the inner surface 21B, whereby the first coupling portion 62 is held on the inner surface 21B.

[0042] In addition, by joining the peripheral portion of one end of the first coupling portion 62 near each end of the second direction 17 on the back surface 20A of the main body portion and providing the detachable portion 62A on the side back surface 21A, the side portion 21 and the main body portion 20 may be coupled. Of course, the present invention is not limited to this, and the first coupling portion 62 may be provided at various portions of the side portion 21 and the main body portion 20.

[0043] Also, the first coupling portion 62 may be provided only on one side portion 21. Further, the first coupling portion 62 may be configured as, for example, a string-like portion or the like. Further, the above-described detachable portion is not limited to a hook-and-loop fastener, and for example, detaching and attaching may be realized using a hook or the like.

[0044] [6. Second coupling portion] The cushion 1 includes a second coupling portion 63 that can couple the second element 3 and the third element 4 adjacent to the second element 3 at both ends in the second direction 17 in the first and second folded states (see FIGS. 1, 2, 5, 7, and 8). Hereinafter, the outer surfaces forming the side surfaces 14 and 15 of the mattress in these second and third elements 3 and 4 are defined as the second and third side surfaces 30 and 40, respectively.

[0045] The second coupling portion 63 is, as an example, a belt-like portion and is provided on each second side surface 30. One end of the second coupling portion 63 is joined to the second side surface 30 (more specifically, near the second main surface of the second side surface 30), and a detachable portion is provided near the other end. Further, a detachable portion 63A is provided on each third side surface 40 (more specifically, near the second main surface of the third side surface 40).

[0046] The detachable portion of the second coupling portion 63 on each second side surface 30 is detachable from the detachable portion 63A on the third side surface 40 adjacent to the second side surface 30. Note that these detachable portions may be configured as a hook-and-loop fastener as an example. Thereby, in the first and second folded states, the second element 3 and the third element 4 adjacent thereto can be coupled.

[0047] Note that one end of the second coupling portion 63 may be joined to a portion near the second side surface 30 on the first or second main surface of the second element 3. Further, one end of the second coupling portion 63 may be similarly joined to the third side surface 40 or the vicinity thereof, and a detachable portion 63A may be provided on the second side surface 30, so that the second coupling portion 63 may couple the second element 3 and the third element 4. Further, the second element 3 and the third element 3 located at the second end 11 may be coupled by the second coupling portion 63 having the same configuration.

[0048] Further, the second coupling portion 63 may be provided only on one of the second side surfaces 30. Further, the second coupling portion 63 may be configured as, for example, a string-like portion. Further, the above-described detachable portion is not limited to a hook-and-loop fastener, and detachment and attachment may be realized using, for example, a hook or the like.

[0049] [7. Holding portion] A holding portion 64 for holding the second coupling portion 63 provided on the second side surface 30 is provided on each second side surface 30 (see FIGS. 1, 2, 5, 7, and 8). The holding portion 64 is, as an example, a belt-like portion and is provided so as to extend in the first direction 16. Further, as an example, both ends of the holding portion 64 are joined to both ends of the second side surface 30 in the first direction 16.

[0050] And, between the holding portion 64 and the second side surface 30, the second coupling portion 63 in a state of not being attached to the detachable portion 63A of the third side surface 40 can be accommodated. And, by accommodating the second coupling portion 63 in this way, the second coupling portion 63 is held by the second side surface 30. A part of the accommodated second coupling portion 63 protrudes from the holding portion 64. Further, the second coupling portion 63 can be accommodated in various states, such as a folded state, a wound state, or a rolled state.

[0051] Note that when the second coupling portion 63 is attached to the detachable portion 63A of the third side surface 40, the second coupling portion 63 may be disposed between the holding portion 64 and the second side surface 30 (see FIGS. 5, 7, and 8), or may be disposed so as to cover the holding portion 64.

[0052] Further, the holding part 64 can have various configurations capable of holding the second coupling part 63 on the second side surface 30, not limited to the belt-shaped part. Further, when one end of the second coupling part 63 is joined to the third side surface 40, a holding part 64 may be provided on the third side surface 40 so that the second coupling part 63 is held on the third side surface 40 in the same manner.

[0053] [8. Effects] (1) The cushion 1 of the above embodiment can form a mattress and a sofa by arranging or folding each element. Further, when the cushion 1 is used as a sofa, the presence or absence of the armrest 71 can be selected by changing the position of the side part 21 of the first element 2. Therefore, the cushion 1 can be easily deformed into a mattress or a sofa, and when the cushion is used as a sofa, the presence or absence of the armrest 71 can be selected, and the user can sit or lie down on the cushion 1 in various postures. Accordingly, a cushion 1 that is easy to handle and has high comfort can be provided.

[0054] (2) Also, in the unfolded state or the first folded state, the first coupling part 62 can favorably couple the side part 21 and the main body part 20. Therefore, separation of the side part 21 from the main body part 20 can be suppressed, and the usability of the cushion 1 is improved.

[0055] (3) Also, in the second folded state, the first coupling part 62 of each side part 21 can be attached to the inner side surface 21B of the side part 21. Therefore, separation of the first coupling part 62 from the side part 21 forming the armrest 71 can be suppressed, and the usability of the cushion 1 is improved.

[0056] (4) Also, in the first and second folded states, the second coupling part 63 can favorably couple the element forming the backrest 7 and the element forming the seat 8. Therefore, it is promoted that the first and second folded states are maintained, and the usability of the cushion 1 is improved.

[0057] (5) Also, when in the deployed state, the holding portion 64 can suppress the second coupling portion 63 from separating from the second side surface 30. Therefore, the usability of the cushion 1 is improved. (6) Further, when each element is constituted by a bag body capable of injecting and discharging a fluid such as air, each element can be contracted when not in use. Therefore, the storage and carrying of the cushion 1 become easy, and for example, it becomes possible to use the cushion 1 during outdoor activities such as camping.

[0058] [9. Other Embodiments] (1) In the above embodiment, two or more first elements 2 may be arranged side by side between the first end 10 and the second element 3, or one or three or more third elements 4 may be arranged side by side between the second end 11 and the second element 3. Also, even in such a case, similarly, a main body portion and side portions are provided for each first element 2, and in the first and second folded states, the backrest 7, the central backrest 70, or the armrest 71 may be formed. Also, corresponding to all or part of the first elements 2, the first coupling portion 62 and the detachable portion 62A may be provided. Also, the third element 4 coupled to the second element 3 by the second coupling portion 63 can be appropriately determined.

[0059] (2) In the above embodiment, a side portion 21 may be provided at one end of the first element 2 in the second direction 17. (3) A plurality of functions of one component in the above embodiment may be realized by a plurality of components, or one function of one component may be realized by a plurality of components. Also, a plurality of functions of a plurality of components may be realized by one component, or one function realized by a plurality of components may be realized by one component. Also, a part of the configuration of the above embodiment may be omitted. Also, at least a part of the configuration of the above embodiment may be added to or replaced with the configuration of other above embodiments.

Explanation of Reference Numerals

[0060] 1…cushion, 10, 11…first and second ends, 12, 13…first and second surfaces, 16, 17…first and second directions, 18…thickness direction, 2…first element, 20…main body, 20A…back surface of the main body, 21…side part, 21A…back surface of the side part, 21B…inner surface, 3…second element, 30…second side surface, 4…third element, 40…third side surface, 62…first coupling part, 63…second coupling part, 64…holding part, 7…backrest, 70…central backrest, 71…armrest, 8…seat, 80…seat surface.

Claims

1. A cushion, comprising A (where A is an integer of 3 or more) cushioning elements that can be arranged to form a mattress that extends in a first direction from a first end to a second end and also extends in a second direction orthogonal to the first direction, each of the A elements being coupled to an adjacent other element so as to be arranged in the first direction and foldable so as to overlap in the thickness direction of the mattress, the A elements including B (where B is an integer of 1 or more) first elements, one second element, and C (where C is an integer of 1 or more) third elements, the second element being located between the first element and the third element, the first element being located between the first end of the mattress and the second element, the third element being located between the second end of the mattress and the second element, the first element having side portions located at one or both ends in the second direction and a main body portion, the side portions and the main body portion being arranged in the second direction, each of the side portions and the main body portion being separated and coupled separately to an adjacent other element, the cushion being in a first folded state in which at least the first and second elements and the third element adjacent to the second element are folded so that the first and second elements form a backrest and the third element forms a seating surface, and being in a second folded state in which at least the main body portion of the first element, the second element, and the third element adjacent to the second element are folded, and the second element and the side portions of the first element are arranged along the third element so that the main body portion and the second element form a backrest, the side portions form armrests, and the third element forms a seating surface cushion.

2. The cushion according to claim 1, wherein a state in which the A elements form the mattress is defined as a deployed state, and further comprising a first coupling portion that can couple the side portion and the main body portion of the first element in the deployed state and the first folded state. cushion.

3. The cushion according to claim 2, wherein the A elements include one first element, outer surfaces of the main body portion and the side portion of the first element that form the first end of the mattress are defined as a main body portion back surface and a side portion back surface, respectively, and the first coupling portion is provided on one of the main body portion back surface and the side portion back surface and is detachable from the other. Cushion.

4. The cushion according to claim 3, wherein, on the side portion, the outer surface facing the main body portion in the first folded state is taken as the inner surface, the first coupling portion is provided on the back surface of the side portion and is further detachable from the inner surface Cushion.

5. The cushion according to any one of claims 1 to 4, further comprising a second coupling portion capable of coupling the second element and any one of the third elements in the first and second folded states Cushion.

6. The cushion according to claim 5, wherein the outer surfaces forming the side surfaces of the mattress in the second and third elements are taken as the second and third side surfaces, respectively, the second coupling portion is provided on one of the second and third side surfaces and is detachable from the other Cushion.

7. The cushion according to claim 6, further comprising a holding portion for holding the second coupling portion on the second or third side surface where the second coupling portion is provided Cushion.

8. The cushion according to any one of claims 1 to 7, wherein each element is a bag-shaped part into which fluid can be injected and from which the fluid filled inside can be discharged Cushion.

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