Mattress cover

Abstract

To reduce the physical pressure felt by mattress users. [Solution] The mattress cover (10) according to the present disclosure serves as the exterior of a mattress (50). The mattress cover (10) comprises multiple mattress body storage compartments (11) formed from fabric in the shape of flat bags, stacked one on top of the other. The outer edges of adjacent mattress body storage compartments (11, 11) are joined together. The overlapping portions surrounded by the joints are in a non-jointed state.

Description

Technical Field

[0001] The present disclosure relates to a mattress cover that serves as an exterior of a mattress.

Background Art

[0002] Patent Document 1 shows a mattress in which a plurality of mattress bodies are vertically stacked and housed in one bag body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

[0005] , FIGS. 1, 2)

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the mattress of Patent Document 1, when used in a reclining bed or the like, a compressive force that shrinks the upper surface of the mattress in the longitudinal direction acts on the upper mattress body during the back-raising operation or the knee-raising operation. And, due to the influence of this compressive force, the abdomen of the user may be compressed, and a reduction in the user's sense of compression has been demanded.

Means for Solving the Problems

[0005] To solve the above problems, The first aspect of the invention is a mattress cover that serves as an exterior of a mattress, and includes a plurality of mattress body accommodating portions formed in a flat bag shape by a fabric and vertically stacked. The mattress body accommodating portions adjacent to each other vertically have their outer edge portions joined, and the portions that are surrounded by the joined portion and overlap each other are in a non-joined state and are in contact with each other.

[0006] The second aspect of the invention is that the fabric has elasticity, In the first aspect a mattress cover.

[0007] The third aspect of the invention The mattress body accommodating part is formed in a rectangular parallelepiped shape, and is formed by sewing together an upper fabric piece constituting the upper surface, a lower fabric piece constituting the lower surface, and side fabric pieces constituting the side surfaces. The upper fabric piece and the lower fabric piece have elasticity in the lateral direction rather than the longitudinal direction of the mattress body accommodating part, and the side fabric pieces have elasticity in the thickness direction rather than the direction along the outer periphery of the mattress body accommodating part. In the second aspect It is a mattress cover.

[0008] The fourth aspect of the invention The fabric is a mesh fabric. In any one of the first to third aspects It is a mattress cover.

[0009] In a fifth aspect of the invention, the mattress body accommodating part is formed in a rectangular parallelepiped shape, and is formed by sewing together an upper fabric piece constituting the upper surface, a lower fabric piece constituting the lower surface, and side fabric pieces constituting the side surfaces. In the mattress body accommodating parts adjacent to each other vertically, the lower fabric piece of the upper mattress body accommodating part, the side fabric piece of the upper mattress body Containing part The upper fabric piece of the lower mattress body accommodating part and the side fabric piece of the lower mattress body accommodating part are sewn together as a unit. It is a mattress cover according to any one of the first to fourth aspects.

Advantages of the Invention

[0010] In the invention of claim 1, since the lower surface of the upper mattress body accommodating part and the upper surface of the lower mattress body accommodating part are in non - joined contact with each other, during the back - raising operation or the knee - raising operation, the upper mattress body accommodating part slides relative to the lower mattress body accommodating part, so that the mattress body accommodated in the upper mattress body accommodating part can slide relative to the mattress body accommodated in the lower mattress body accommodating part. As a result, the compressive force acting on the upper mattress body is released, and the compression of the user's abdomen is suppressed. Thereby, the reduction of the user's sense of compression is achieved.

[0011] Here, the fabric preferably has slipperiness. Since the fabric has slipperiness, when performing a back-lifting operation or a knee-lifting operation, the upper mattress body accommodating portion can easily slide with respect to the lower mattress body accommodating portion. Further, the fabric preferably has stretchability (the invention of claim 2). Since the fabric has stretchability, even when the mattress body is packed into the mattress body accommodating portion without gaps, the mattress body accommodated in the upper mattress body accommodating portion is allowed to slide with respect to the mattress body accommodated in the lower mattress body accommodating portion. The mattress body accommodating portion is formed in a rectangular parallelepiped shape, and the upper fabric piece constituting the upper surface and the lower fabric piece constituting the lower surface have stretchability in the short side direction rather than the longitudinal direction of the mattress body accommodating portion, and the side fabric piece constituting the side surface preferably has stretchability in the thickness direction rather than the direction along the outer periphery of the mattress body accommodating portion (the invention of claim 3). According to this configuration, the mattress cover can follow the user's turning over or the like on the upper and lower surfaces, and can follow the back-lifting operation or the knee-lifting operation on the side surface.

[0012] Further, from the viewpoint of air permeability, the fabric is preferably a mesh fabric (the invention of claim 4). Further, depending on the shape, size, etc. of the mesh holes, the stretchability of the fabric can be improved.

[0013] According to the invention of claim 5, the sewing portions of the two fabric pieces constituting the lower surface and the side surface of the upper mattress body accommodating portion and the sewing portions of the two fabric pieces constituting the upper surface and the side surface of the lower mattress body accommodating portion can be combined, and it is possible to reduce the labor of sewing.

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiment for Carrying out the Invention

[0015] As shown in FIGS. 1 and 2, a mattress 50 according to an embodiment of the present disclosure includes a mattress body 40 and a mattress cover 10 that houses the mattress body 40 and serves as the exterior of the mattress 50.

[0016] The mattress body 40 is formed in a flat shape having a rectangular shape in plan view. In the present embodiment, the mattress body 40 is made of soft foam urethane.

[0017] The mattress cover 10 is formed by stacking a plurality of mattress body housing portions 11 vertically. The mattress body housing portion 11 is formed in a flat bag shape and houses the mattress body 40. In the present embodiment, the mattress body housing portion 11 is formed in a rectangular parallelepiped shape, and the planar shape of the mattress body housing portion 11 is a rectangular shape having substantially the same size as the planar shape of the mattress body 40. Note that the number of mattress bodies 40 housed in one mattress body housing portion 11 may be one or a plurality. Also, between two different mattress body housing portions 11, the number of mattress bodies 40 housed in the mattress body housing portions 11 may be the same or different.

[0018] The mattress body housing portion 11 is formed of a fabric and has a slipperiness higher than that of the mattress body 40. Specifically, the fabric forming the mattress body housing portion 11 is composed of chemical fibers such as polyester and nylon, cotton, or a mixture thereof. Also, the two mattress body housing portions 11 are in contact with each other by the fabrics forming those mattress body housing portions 11. Specifically, the lower fabric piece 22 of the upper mattress body housing portion 11 and the upper fabric piece 21 of the lower mattress body housing portion 11 are in contact with each other in a non-joined state.

[0019] On the outer peripheral surface of each mattress body accommodating portion 11, a fastener 12 extending along the circumferential direction thereof is provided, and an opening formed when the fastener 12 is opened serves as an entrance and exit for the mattress 40. Note that the number of mattresses 40 accommodated in the mattress body accommodating portion 11 may be one or a plurality.

[0020] The mattress body accommodating portion 11 is formed by sewing together a plurality of fabric pieces. As shown in FIG. 3, the plurality of fabric pieces include an upper fabric piece 21 constituting the upper surface of the accommodating portion 11, a lower fabric piece 22 constituting the lower surface of the accommodating portion 11, a pair of first side fabric pieces 23, 23 facing each other in the long side direction of the outer peripheral surface of the accommodating portion 11, and a pair of second side fabric pieces 24, 24 facing each other in the short side direction of the outer peripheral surface of the accommodating portion 11. The upper fabric piece 21 and the first side fabric piece 23 have their edges overlapped with each other, and the overlapped portion is sewn together as a sewing margin (see FIG. 4). The other fabric pieces are sewn together in the same manner. The sewing margins between the fabric pieces are folded back inside the mattress cover 10.

[0021] In this embodiment, the above-described fastener 12 is provided straddling the first side fabric piece 23 and the second side fabric piece 24 and has an L shape. Specifically, the first side fabric piece 23 is a fabric piece with a fastener in which a first upper fabric piece 23A and a first lower fabric piece 23B that sandwich the fastener 12 up and down are sewn to the fastener 12, and the second side fabric piece 24 is a fabric piece with a fastener in which a second upper fabric piece 24A and a second lower fabric piece 24B that sandwich the fastener 12 up and down are sewn to the fastener 12.

[0022] As shown in FIG. 4, in the mattress cover 10 of the present embodiment, the outer edges of the adjacent mattress body accommodating portions 11, 11 above and below are sewn and joined together. Specifically, the outer edges of the lower fabric piece 22 of the upper mattress body accommodating portion 11 and the upper fabric piece 21 of the lower mattress body accommodating portion 11 are sewn together. And in those two mattress body accommodating portions 11, 11, the portions that overlap each other inside the joint portion, that is, the portions arranged inside the seam in the lower fabric piece 22 of the upper mattress body accommodating portion 11 and the upper fabric piece 21 of the lower mattress body accommodating portion 11 are in a non-joined state and are in contact with each other.

[0023] Specifically, at the stitching portion between the upper fabric piece 21 of the lower mattress body accommodating portion 11 and the lower fabric piece 22 of the upper mattress body accommodating portion 11, a total of four fabric pieces, which are the two fabric pieces constituting the upper surface and the side surface of the lower mattress body accommodating portion 11 and the two fabric pieces constituting the lower surface and the side surface of the upper mattress body accommodating portion 11, are stitched together. According to this configuration, the stitching portion of the two fabric pieces constituting the lower surface and the side surface of the upper mattress body accommodating portion 11 and the stitching portion of the two fabric pieces constituting the upper surface and the side surface of the lower mattress body accommodating portion 11 can be combined, and it becomes possible to reduce the labor of stitching. The sewing allowance of the four fabric pieces is folded back inside one of the mattress body accommodating portions 11, either the upper mattress body accommodating portion 11 or the lower mattress body accommodating portion 11.

[0024] Incidentally, in the present embodiment, the plurality of fabric pieces 21, 22, 23, 24 that constitute the mattress body housing portion 11 are formed by warp knitting. As shown in FIG. 5(A), the upper surface fabric piece 21 and the lower surface fabric piece 22 are arranged such that the warp threads extend along the longitudinal direction of the mattress body housing portion 11. Further, the first side surface fabric piece 23 and the second side surface fabric piece 24 are arranged such that the warp threads extend along the outer periphery of the mattress body housing portion 11. Here, generally, in warp-knitted fabrics, the direction perpendicular to the warp threads is more likely to stretch than the extending direction of the warp threads. Therefore, the upper surface fabric piece 21 and the lower surface fabric piece 22 have stretchability in the lateral direction rather than the longitudinal direction of the mattress body housing portion 11, and the first side surface fabric piece 23 and the second side surface fabric piece 24 have stretchability in the thickness direction rather than the direction along the outer periphery of the mattress body housing portion 11.

[0025] Also, in the present embodiment, in order to improve the breathability of the mattress cover 10, the plurality of fabric pieces 21, 22, 23, 24 that constitute the mattress body housing portion 11 are mesh fabrics, and a plurality of mesh holes 27 are formed in each fabric piece. The mesh holes 27 are formed in an elliptical shape or a water droplet shape that is long in the extending direction of the warp threads. Thereby, in each fabric piece 21, 22, 23, 24, the stretchability in the direction perpendicular to the warp threads is improved. Note that the size of the mesh holes 27 is 2 to 3 [mm] in the longitudinal direction and 1 to 2 [mm] in the lateral direction. Also, the mesh holes 27 may be formed in a circular shape.

[0026] As shown in FIG. 6, the mattress 50 is used for a reclining bed 70. The reclining bed 70 includes a plurality of floor boards 72 on a main frame 71, and the mattress 50 is laid on the plurality of floor boards 72. The plurality of floor boards 72 are composed of, for example, a back floor board 72A, a lumbar floor board 72B, a fixed floor board 72C, a knee floor board 72D, and a leg floor board 72E. By rotating the back floor board 72A with respect to the fixed floor board 72C, the back is raised, and by rotating the knee floor board 72D with respect to the fixed floor board 72C, the knees are raised. Note that when the back is raised, the lumbar floor board 72B is interlocked with the back floor board 72A, and when the knees are raised, the leg floor board 72E is interlocked with the knee floor board 72D.

[0027] Here, when the upper body is lifted or the knees are lifted and the lower surface of the mattress 50 is bent, a compressive force that shrinks the upper surface of the mattress 50 acts on the upper mattress body 40. Then, due to this force, there may arise a problem that the upper body or the lower body of the user lying on the mattress 50 is drawn into the abdomen, and the abdomen of the user is compressed. However, in the mattress cover 10 of the present embodiment, a plurality of mattress body accommodating portions 11 are stacked one above the other, and the mattress body 40 is accommodated in each mattress body accommodating portion 11. And, the lower fabric piece 22 of the upper mattress body accommodating portion 11 and the upper fabric piece 21 of the lower mattress body accommodating portion 11 are sewn together only at the outer edge portion, and the portions arranged inside the seam are in a non-joined state and are in contact with each other. Therefore, when the upper mattress body accommodating portion 11 slides relative to the lower mattress body accommodating portion 11, the mattress body 40 accommodated in the upper mattress body accommodating portion 11 slides in the longitudinal direction relative to the mattress body 40 accommodated in the lower mattress body accommodating portion 11. As a result, the compressive force acting on the upper mattress body 40 is released.

[0028] Thus, in the mattress cover 10 of the present embodiment, since the lower surface of the upper mattress body accommodating portion 11 and the upper surface of the lower mattress body accommodating portion 11 are in contact with each other in a non-joined state, during the upper body lifting operation or the knee lifting operation, the compressive force acting on the mattress body 40 accommodated in the upper mattress accommodating portion 11 is released, and the compression of the user's abdomen is suppressed. Further, since the fabric constituting the mattress cover 10 has a slipperiness higher than that of the mattress body 40, during the upper body lifting operation or the knee lifting operation, the upper mattress body accommodating portion 11 easily slides relative to the lower mattress body accommodating portion 11.

[0029] In addition, since the fabric constituting the mattress cover 10 has elasticity, even when the mattress body 40 is packed into the mattress body accommodation part 11 without any gaps, the mattress body 40 accommodated in the upper mattress body accommodation part 11 is allowed to slide with respect to the mattress body 40 accommodated in the lower mattress body accommodation part 11. In particular, in the mattress cover 10 of the present embodiment, the upper surface fabric piece 21 and the lower surface fabric piece 22 of the mattress body accommodation part 11 have elasticity in the transverse direction rather than the longitudinal direction of the mattress body accommodation part 11, and the first side surface fabric piece 23 and the second side surface fabric piece 24 have elasticity in the thickness direction rather than the direction along the outer periphery of the mattress body accommodation part 11. Therefore, on the upper and lower surfaces, it is possible to follow the turning over of the user of the mattress 50, etc., and on the side surfaces, it is possible to follow the back-raising movement and the knee-raising movement.

[0030] [Other Embodiments] (1) The mattress cover 10 may include three or more mattress body accommodation parts 11. In this case, in at least two adjacent mattress body accommodation parts 11, 11 vertically, the outer edge parts thereof are joined, and it is sufficient that the parts surrounded by the joined part and overlapping each other are in a non-joined state and in contact with each other.

[0031] (2) The fastener 12 of the mattress cover 10 may be provided only on one side surface of the mattress cover 10. In this case, the fastener 12 is preferably provided on the first side surface fabric piece 23 extending in the longitudinal direction of the mattress 50.

[0032] (3) In the above embodiment, the outer edge parts of the upper mattress body accommodation part 11 and the lower mattress body accommodation part 11 are joined by sewing, but they may be joined by heat welding, or may be joined by surface fasteners, buttons, hooks, strings, etc.

[0033] (4) In the above embodiment, the plurality of fabric pieces 21, 22, 23, 24 of the mattress body accommodating portion 11 were made of the same type of fabric, but they may be made of different types of fabric. Specifically, the upper surface fabric piece 21 and the lower surface fabric piece 22 of the mattress body accommodating portion 11 may be made of a fabric with excellent slipperiness, and the first side surface fabric piece 23 and the second side surface fabric piece 23 of the mattress body accommodating portion 11 may be made of a fabric with excellent stretchability.

Explanation of Signs

[0034] 10 Mattress cover 11 Mattress body accommodating portion 21 Upper surface fabric piece 22 Lower surface fabric piece 23 First side surface fabric piece 24 Second side surface fabric piece 27 Mesh hole 40 Mattress body 50 Mattress 70 Reclining bed

Claims

1. A mattress cover that serves as the exterior of a mattress, comprising a plurality of mattress body accommodating portions formed in a flat bag shape by fabric, stacked one above the other, wherein the outer edge portions at both ends in the longitudinal direction of the mattress body accommodating portions adjacent to each other vertically are joined so that they can slide relative to each other in the longitudinal direction of the mattress. A mattress cover.

2. The mattress cover according to claim 1, wherein the fabric has elasticity.

3. The mattress cover according to claim 1 or 2, wherein the fabric is a mesh fabric.

4. The mattress body accommodating portion is formed in a rectangular parallelepiped shape, and an upper surface fabric piece constituting the upper surface, a lower surface fabric piece constituting the lower surface, and a side surface fabric piece constituting the side surface are sewn together. In the mattress body accommodating portions adjacent to each other vertically, the lower surface fabric piece of the upper mattress body accommodating portion, the side surface fabric piece of the upper mattress body accommodating portion, the upper surface fabric piece of the lower mattress body accommodating portion, and the side surface fabric piece of the lower mattress body accommodating portion are sewn together as a unit. The mattress cover according to any one of claims 1 to 3.

Images