mattress

Abstract

To improve sleeping comfort of a mattress.SOLUTION: A mattress (1) stores a mattress body (3) formed of a filament three-dimensional connector extending in a front-back direction, which is a height direction of a lying person, a right-left direction, and a vertical direction in a mattress cover (2). A cushion body (4) in which a plurality of springs (18) softer than the hardness in a vertical direction of the mattress body (3) are aligned in a front-back direction and in a right-left direction is provided on the upper part of the mattress body (3). The mattress body (3) is formed by laminating a plurality of layers with different densities of the filaments vertically. The springs (18) of the cushion body (4) are made softer than the hardness in a vertical direction of a top layer (first upper layer 8) of the mattress body (3). Further, the thickness of the cushion body (4) is made smaller than the thickness of the top layer (first upper layer 8).SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mattress having a mattress body made of three-dimensional filament bonds extending in the front-to-back and left-to-right directions (which correspond to the height direction of a person lying down) and up-down directions, housed in a mattress cover. [Background technology]

[0002] Conventionally, a mattress body made of a three-dimensional bonded filament extending in the front-to-back direction (corresponding to the height direction of the person lying down), as well as the left-to-right direction and the up-to-down direction, has been used as the cushioning material inside the mattress (see, for example, Patent Document 1).

[0003] In this conventional mattress, filaments made of multiple molten thermoplastic resin fibers are lowered from above to fuse the filaments together into a three-dimensional net-like shape and then cooled to form the mattress, so that the density of the filaments in the vertical direction is constant. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-120743 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the above-mentioned conventional mattresses, since the mattress body is formed from filaments, a hard flat surface is formed on the upper end surface of the mattress body by the solidified filaments. Therefore, in a mattress that uses a mattress body made of a three-dimensional filament bond as is, the hard upper end plane of the mattress body presses against the body of a person lying down, making it difficult to sleep comfortably. [Means for solving the problem]

[0006] In the present invention according to claim 1, a mattress is provided in which a mattress body made of a three-dimensional filament bond extending in the front-back and left-right directions, which correspond to the height direction of a person lying down, and in the up-down direction is housed in a mattress cover, and a cushion body is provided on the top of the mattress body, in which a plurality of springs, which are softer than the mattress body in the up-down direction, are arranged in the front-back and left-right directions. The mattress body is formed by stacking a plurality of layers having different filament densities one above the other, the springs of the cushion body are softer than the vertical hardness of the top layer of the mattress body, and the thickness of the cushion body is thinner than the thickness of the top layer. I decided to do that. Effect of the Invention

[0009] The present invention provides the following advantages.

[0010] In other words, in the present invention, in a mattress which has a mattress body made of three-dimensional filament bonds extending in the front-to-back and left-to-right directions, which correspond to the height direction of a person lying down, as well as up-down, housed in a mattress cover, a cushion body is provided on the upper part of the mattress body, in which a plurality of springs which are softer than the hardness of the mattress body in the up-to-down direction are arranged in the front-to-back and left-to-right directions.As a result, a cushion body made of springs softer than the mattress body is interposed between the hard upper end plane of the mattress body made of three-dimensional filament bonds and the body of the person lying down, which eliminates the feeling of pressure on the body of the person lying down and improves sleeping comfort.

[0011] In particular, if the mattress body is formed by stacking multiple layers of different filament densities one on top of the other, and the springs in the cushion body are made softer than the vertical hardness of the top layer of the mattress body, when you lie down, your body will sink smoothly from the cushion body into the top layer of the mattress body, further improving sleeping comfort.

[0012] Furthermore, even if the thickness of the cushion body is made thinner than the thickness of the top layer, when lying down the body will smoothly sink from the cushion body into the top layer of the mattress body, further improving sleeping comfort. [Brief description of the drawings]

[0013] [Figure 1] 1 is a perspective view showing a mattress according to the present invention; [Diagram 2] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, a specific configuration of the mattress according to the present invention will be described with reference to the drawings.

[0015] As shown in Figures 1 and 2, the mattress 1 contains a mattress body 3 and a cushion body 4 inside a rectangular box-shaped bag-like mattress cover 2. In the mattress 1, the cushion body 4 is disposed on top of the mattress body 3 so that the cushion body 4 is interposed between the recumbent and the mattress body 3.

[0016] The mattress body 3 is formed by a three-dimensional filament bonded body into a rectangular plate shape extending in the front-to-rear direction (left-to-right direction in FIG. 1), which corresponds to the height direction of a person lying down, and in the left-to-right and up-to-down directions perpendicular thereto. Here, the three-dimensional filament bonded body is formed by filaments made of multiple thermoplastic resin fibers in a molten state being fused together into a three-dimensional net shape and then being cooled. Thermoplastic resin materials such as polyethylene and polypropylene are used as the filaments.

[0017] This mattress body 3 has an upper layer 5 formed on the upper side and a lower layer 6 formed on the lower side, with an intermediate layer 7 formed between the upper layer 5 and the lower layer 6 by bonding them together. The upper layer 5 and the lower layer 6 may be formed of a single layer or multiple layers. Here, the intermediate layer 7 consisting of one layer is provided between the upper layer 5 consisting of six layers and the lower layer 6 consisting of two layers.

[0018] The upper layer 5 is composed of the first to sixth upper layers 8 to 13, from the top, with the first upper layer 8 having the lowest filament density among the upper layers 5 and the sixth upper layer 13 having the highest filament density among the upper layers 5, and the filament density gradually (in steps) increasing in the order of the first to sixth upper layers 8 to 13 as they approach the intermediate layer 7.

[0019] In addition, the upper layer 5 is configured such that the first upper layer 8 has the thinnest vertical thickness among the upper layers 5, and the sixth upper layer 13 has the thickest vertical thickness among the upper layers 5, and the vertical thicknesses of the first to sixth upper layers 8-13 are the same or gradually (stepwise) thicker in order as they approach the intermediate layer 7.

[0020] In this way, when the upper layer 5 is formed of multiple layers (the first to sixth upper layers 8-13), the filament density of each layer (the first to sixth upper layers 8-13) forming the upper layer 5 is made to gradually increase toward the intermediate layer 7 side, and the vertical thickness (height) of each layer (the first to sixth upper layers 8-13) forming the upper layer 5 is made to be the same or gradually increase toward the intermediate layer 7 side.

[0021] The lower layer 6 is composed of first and second lower layers 14, 15, from the bottom up. The first lower layer 14 has the lowest filament density among the lower layers 6, the second lower layer 15 has the highest filament density among the lower layers 6, and the filament density of the first and second lower layers 14, 15 increases gradually (in steps) in the order from the bottom up toward the intermediate layer 7.

[0022] In addition, the first lower layer 14 has the thinnest vertical thickness among the lower layers 6, and the second lower layer 15 has the thickest vertical thickness among the lower layers 6, and the vertical thicknesses of the first and second lower layers 14, 15 are the same or gradually (in steps) thicker in that order as they approach the intermediate layer 7.

[0023] In this way, when the lower layer 6 is formed of multiple layers (first and second lower layers 14, 15), the filament density of each layer (first and second lower layers 14, 15) forming the lower layer 6 is made gradually higher toward the intermediate layer 7, and the vertical thickness (height) of each layer (first and second lower layers 14, 15) forming the lower layer 6 is made uniform or gradually thicker toward the intermediate layer 7.

[0024] The intermediate layer 7 has a higher filament density and a greater thickness in the vertical direction than the first to sixth upper layers 8 to 13 constituting the upper layer 5 and the first and second lower layers 14, 15 constituting the lower layer 6.

[0025] The mattress body 3 is constructed as described above, with the number of layers in the upper layer 5 being greater than the number of layers in the lower layer 6 and the thickness of the upper layer 5 being greater than the thickness of the lower layer 6. When used as the mattress 1, the upper layer 5 receives the load (body weight) of the person lying down and expands and contracts, while the lower layer 6 receives the load (reaction force) from the bed base and expands and contracts.

[0026] As a result, in the mattress body 3, the upper layer 5 and lower layer 6 sandwiching the middle layer 7 expand and contract in response to the load of the person lying down, and the mattress has cushioning properties that exhibit an N value that changes smoothly in response to the load, similar to that of a pocket coil, thereby improving the sleeping comfort of the person lying down.

[0027] The upper end surface of this mattress body 3 (first upper layer 8) is formed with a hard, flat surface by solidified filaments.

[0028] Therefore, in the mattress 1, a rectangular thin plate-like cushion body 4 having the same size as the upper surface of the mattress body 3 in a plan view is laid on top of the hard upper end flat surface of the mattress body 3.

[0029] The cushion body 4 has coil springs 18 arranged at intervals on the front, back, left and right sides between upper and lower rectangular sheets 16, 17, and the upper and lower sheets 16, 17 are attached to the spaces between adjacent springs 18, 18 and at the outer periphery. As a result, each spring 18 is housed in a pocket 19 formed between the upper and lower sheets 16, 17 (pocket coil).

[0030] The cushion body 4 has springs 18 arranged in the front-rear and left-right directions, the springs 18 having a softer hardness than the average hardness in the vertical direction of the mattress body 3. Moreover, the springs 18 are softer than the average hardness in the vertical direction of the top layer (first upper layer 8) of the mattress body 3.

[0031] Moreover, the cushion body is designed to be thinner (lower) than the thickness (height) of the uppermost layer (first upper layer 8) of the mattress main body 3.

[0032] As described above, the mattress 1 has a mattress body 3 which has 4 upper layers consisting of one or more layers, and a lower layer 6 consisting of one or more layers, with an intermediate layer 7 provided between the upper layer 5 and lower layer 6. Therefore, when lying on one's side, the cushioning in the vertical direction becomes smooth according to the load, improving the sleeping comfort.

[0033] In addition, by configuring the mattress 1 so that the filament density is higher in the middle layer 7 than in the upper layer 5 and lower layer 6, or by configuring the filament density of each layer (first to sixth upper layers 8 to 13, first and second lower layers 14, 15) forming the upper layer 5 consisting of multiple layers or the lower layer 6 consisting of multiple layers to gradually increase toward the middle layer 7, the cushioning in the vertical direction when lying down becomes smooth according to the load, thereby improving the comfort of sleeping.

[0034] Furthermore, the mattress 1 is configured such that a cushion body 4 is provided on the upper part of the mattress body 3, and the cushion body 4 has a plurality of springs 18 arranged in the front-rear and left-right directions, the springs 18 being softer than the mattress body 3 in the up-down direction.

[0035] Therefore, in the above mattress 1, a cushion body 4 made of springs 18 which is softer than the mattress body 3 is interposed between the hard upper end plane of the mattress body 3 made of a three-dimensional filament bond and the body of the person lying down, eliminating the feeling of pressure on the body of the person lying down and improving the sleeping comfort.

[0036] In addition, the mattress 1 is formed by stacking multiple layers (upper layer 5, middle layer 7, lower layer 6) with different filament densities in the mattress body 3, and is configured so that the springs 18 of the cushion body 4 are softer than the vertical hardness of the top layer (first upper layer 8) of the mattress body 3.

[0037] Therefore, with the mattress 1 configured as described above, when lying down, the body smoothly sinks from the cushion body 4 into the top layer (first upper layer 8) of the mattress body 3, further improving sleeping comfort.

[0038] Moreover, the mattress 1 is configured so that the thickness of the cushion body 4 is thinner than the thickness of the uppermost layer (first upper layer 8).

[0039] Therefore, with the mattress 1 configured as described above, when lying down, the body smoothly sinks from the cushion body 4 into the top layer (first upper layer 8) of the mattress body 3, further improving sleeping comfort. [Explanation of symbols]

[0040] 1 Mattress 2 Mattress cover 3 Mattress body 4 Cushion body 5 Upper layer 6 Lower layer 7 Middle layer 8~13 1st~6th upper layers 14,15 1st and 2nd lower layers 16,17 Upper and lower sheets 18 Spring 19 Pocket

Claims

[Claim 1] A mattress body made of a three-dimensional filament bond extending in the front-back direction, left-right direction, and up-down direction, which correspond to the height direction of a person lying down, is contained in a mattress cover. A cushion body is provided on the upper part of the mattress body, in which a plurality of springs, which are softer than the mattress body in the vertical direction, are arranged in the front-rear and left-right directions; The mattress body is formed by stacking a plurality of layers having different filament densities one on top of the other, and the springs of the cushion body are made softer than the vertical hardness of the topmost layer of the mattress body; The mattress is characterized in that the thickness of the cushion body is thinner than the thickness of the uppermost layer.

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