mattress

Abstract

To provide a mattress which not only has excellent body pressure dispersion properties but also reduces pressure on the shoulders of a user when the user is in a lateral position and assists the user in turning over in bed. [Solution] The mattress of the present invention comprises a foamed resin mattress body 2 having a first layer 21 and a second layer 22 arranged above the first layer 21, a lower slit S1 extending upward from the bottom surface 211 of the first layer 21, and an upper slit S2 extending downward from the top surface 221 of the second layer 22, wherein the density of the first layer 21 is greater than the density of the second layer 22, the lower slit S1 has a lower vertical slit S1x and a lower horizontal slit S1y, and the upper slit S2 has an upper vertical slit S2x and an upper horizontal slit S2y, the mattress body 2 has a shoulder support portion A that supports the shoulders of a user in a lateral position, and the shoulder support portion A has a plurality of upper vertical slits S2x and a plurality of lower horizontal slits S1y.

Description

[Technical Field]

[0001] This invention relates to a foam mattress. [Background technology]

[0002] Mattresses made of a laminate of multiple polyurethane foams have been proposed as mattresses with excellent body pressure distribution properties.

[0003] Patent Document 1 discloses a mattress made by laminating soft polyurethane foams with different physical properties, characterized in that a high-elasticity polyurethane foam layer with a resilience of more than 50% is laminated with a surface layer of soft polyurethane foam with a resilience of 25% or less and a hysteresis loss rate of 35% or less. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-353 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the mattress in Patent Document 1 does not consider the pressure on the shoulders when the user is in a lateral position, and if the shoulders are compressed when the user is in a lateral position, it becomes difficult to turn from the supine position to the lateral position. Therefore, the object of the present invention is to provide a mattress that not only has excellent body pressure distribution but also reduces the pressure on the shoulders when the user is in a lateral position, thereby assisting the user in turning over. [Means for solving the problem]

[0006] The mattress of the present invention comprises a foamed resin mattress body having a first layer and a second layer placed on top of the first layer; a lower slit extending upward from the bottom surface of the first layer; and an upper slit extending downward from the top surface of the second layer, wherein the density of the first layer is greater than the density of the second layer; the lower slit has a plurality of lower vertical slits extending along the length of the mattress body and a plurality of lower horizontal slits extending along the width of the mattress body; the upper slit has a plurality of upper vertical slits extending along the length of the mattress body and a plurality of upper horizontal slits extending along the width of the mattress body; the mattress body has a shoulder support section that supports the shoulders of a user in a lateral position, and the shoulder support section has the plurality of upper vertical slits and the plurality of lower horizontal slits.

[0007] With this configuration, since the density of the first layer is greater than that of the second layer, the body pressure can be dispersed while maintaining the user's posture. Furthermore, the multiple upper vertical slits and the multiple lower horizontal slits provided in the shoulder support portion can reduce pressure on the shoulders of the user in a lateral position and assist the user in turning over.

[0008] In the present invention, it is preferable that the mattress body has a buttocks support section that supports the buttocks of the user, and that the plurality of upper vertical slits and the plurality of upper horizontal slits are provided in the buttocks support section, and that the plurality of lower horizontal slits are not provided in the buttocks support section.

[0009] This configuration can assist the user in turning over while supporting the buttocks, which are the area where the user places the greatest load on the mattress.

[0010] In the present invention, it is preferable that the plurality of lower horizontal slits provided in the shoulder support portion have a plurality of depths.

[0011] This configuration further reduces pressure on the shoulders of the user in the lateral position, and further assists the user in turning over.

[0012] In the present invention, the plurality of depths of the plurality of lower horizontal slits provided in the shoulder support portion are of two types, a first depth and a second depth, and it is preferable that the lower horizontal slits of the first depth and the lower horizontal slits of the second depth are provided alternately in the shoulder support portion.

[0013] This configuration further reduces pressure on the shoulders of the user in the lateral position, and further assists the user in turning over.

[0014] In the present invention, it is preferable that the shoulder support portion is provided with a plurality of lower vertical slits having a plurality of depths.

[0015] This configuration further reduces pressure on the shoulders of the user in the lateral position, and further assists the user in turning over.

[0016] In the present invention, the depths of the lower vertical slits provided in the shoulder support portion are of two types, a third depth and a fourth depth, and it is preferable that the lower vertical slits of the third depth and the lower vertical slits of the fourth depth are provided alternately in the shoulder support portion.

[0017] This configuration further reduces pressure on the shoulders of the user in the lateral position, and further assists the user in turning over.

[0018] In the present invention, it is preferable that the multiple upper horizontal slits provided in the shoulder support portion have multiple depths, and the depth of the upper horizontal slit located in the center of the shoulder support portion is set deeper than the depth of the other upper horizontal slits located at the ends of the shoulder support portion.

[0019] This configuration further reduces pressure on the shoulders of the user in the lateral position, and further assists the user in turning over.

[0020] In the present invention, it is preferable that the multiple upper vertical slits provided in the shoulder support portion have multiple depths, and the depth of the upper vertical slit located in the center of the shoulder support portion is set deeper than the depth of the other upper vertical slits located at the ends of the shoulder support portion.

[0021] This configuration further reduces pressure on the shoulders of the user in the lateral position, and further assists the user in turning over. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a perspective view showing a mattress according to an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0023] A mattress 1 according to an embodiment of the present invention will be described with reference to Figures 1 to 5. The mattress 1 comprises a foamed resin mattress body 2 having a first layer 21 and a second layer 22 disposed above the first layer 21, a lower slit S1 extending upward from the bottom surface 211 of the first layer 21, and an upper slit S2 extending downward from the top surface 221 of the second layer 22. The size of the mattress 1 is, for example, 195 cm in length (longitudinal direction X) and 97 cm in width (transverse direction Y), and the thickness of the first layer 21 is, for example, 5 cm and the thickness of the second layer 22 is, for example, but is not limited to, these.

[0024] The mattress body 2 is divided into three members in the longitudinal direction X of the mattress 1: a first member 2a located in the center and two second members 2b located on either end of the first member 2a. The first member 2a and the two second members 2b are housed inside the mattress cover as filling materials, allowing these to be connected and folded into thirds. The two second members 2b can be swapped, which reduces wear and tear with use.

[0025] The mattress body 2 may be an integral structure without being divided, or may be a structure in which the ends of the first member 2a and the two second members 2b can be connected. Examples of materials for the mattress body include urethane foam.

[0026] The density of the first layer 21 is set to be greater than the density of the second layer 22. This allows the user's posture to be maintained while the body pressure is dispersed. The density of the first layer 21 is set to be 25D (kg / m 3 The density of the second layer 22 is preferably 20D to 55D.

[0027] The hardness of the first layer 21 is preferably 100N to 400N, and the hardness of the second layer 22 is preferably 40N to 200N. The rebound resilience of the first layer 21 is preferably 30% to 60%, and the rebound resilience of the second layer 22 is preferably 10% to 60%.

[0028] As shown in Fig. 3, the lower slits S1 provided in the first layer 21 of the mattress body 2 have a plurality of lower vertical slits S1x provided along the longitudinal direction X of the mattress body 2 and a plurality of lower horizontal slits S1y provided along the lateral direction Y of the mattress body. The depth of the lower vertical slits S1x is preferably 20 mm to 35 mm, and the width of the lower vertical slits S1x is preferably 10 mm. The depth of the lower horizontal slits S1y is preferably 25 mm to 40 mm, and the width of the lower horizontal slits S1y is preferably 10 mm.

[0029] The lower horizontal slit S1y preferably has a plurality of depths, and in this embodiment, there are two depths, a first depth D1 and a second depth D2, and the second depth D2 is set to be deeper than the first depth D1. The first depth D1 is preferably 25 mm, and the second depth D2 is preferably 40 mm.

[0030] The lower vertical slit S1x preferably has a plurality of depths, and in this embodiment, there are two depths, a third depth D3 and a fourth depth D4, and the fourth depth D4 is set to be deeper than the third depth D3. The third depth D3 is preferably 20 mm, and the fourth depth D4 is preferably 35 mm.

[0031] As shown in Fig. 2, the upper slits S2 provided in the second layer 22 of the mattress body 2 have a plurality of upper vertical slits S2x provided along the longitudinal direction X of the mattress body 2 and a plurality of upper horizontal slits S2y provided along the lateral direction Y of the mattress body 2. The depth of the upper vertical slits S2x is preferably 20 mm to 30 mm, and the width of the upper vertical slits S2x is preferably 10 mm. The depth of the upper horizontal slits S2y is preferably 25 mm to 30 mm, and the width of the upper horizontal slits S2y is preferably 10 mm.

[0032] The lower slits S1 and the upper slits S2 can improve the breathability of the mattress body 2, and at the same time, can assist the user in turning over in bed and reduce pressure on the shoulders of a user in a side-lying position.

[0033] As shown in FIGS. 1 to 3 , the two second members 2b of the mattress body 2 have shoulder support portions A that support the shoulders of a user in a lateral position. The shoulder support portions A are provided with a plurality of upper vertical slits S2x and a plurality of lower horizontal slits S1y. These slits improve the breathability of the mattress body 2, encourage the user to turn over, and reduce pressure on the shoulders of a user in a lateral position. In the mattress body 2 of this embodiment, the shoulder support portions A are further provided with a plurality of upper horizontal slits S2y and a plurality of lower vertical slits S1x. These slits further improve the breathability of the mattress body 2, encourage the user to turn over, and reduce pressure on the shoulders of a user in a lateral position. In the mattress body 2 of this embodiment, the shoulder support portions A have six upper vertical slits S2x, eight upper horizontal slits S2y, eleven lower vertical slits S1x, and fifteen lower horizontal slits S1y.

[0034] As described above, in this embodiment, the lower horizontal slits S1y provided in the shoulder support portion A have two depths, the first depth D1 and the second depth D2, and the lower horizontal slits S1y with the first depth D1 and the lower horizontal slits S1y with the second depth D2 are arranged alternately. This configuration further reduces pressure on the shoulders of a user in a lateral position, thereby further assisting the user in turning over.

[0035] As described above, in this embodiment, the lower vertical slits S1x provided in the shoulder support portion A have two depths, the third depth D3 and the fourth depth D4, and the lower vertical slits S1x of the third depth D3 and the lower vertical slits S1x of the fourth depth D4 are arranged alternately. This configuration further reduces pressure on the shoulders of a user in a lateral position, thereby further assisting the user in turning over.

[0036] In this embodiment, the multiple upper horizontal slits S2y provided in the shoulder support part A have multiple depths, and the depth of the upper horizontal slit S2y located in the center of the shoulder support part A is set deeper than the depth of the other upper horizontal slits S2y located at the ends of the shoulder support part A. This configuration further reduces pressure on the shoulders of the user in the lateral position and further assists the user in turning over.

[0037] In this embodiment, the multiple upper vertical slits S2x provided in the shoulder support part A have multiple depths, and the depth of the upper vertical slit S2x located in the center of the shoulder support part A is set deeper than the depth of the other upper vertical slits S2x located at the ends of the shoulder support part A. This configuration further reduces pressure on the shoulders of the user in the lateral position and further assists the user in turning over.

[0038] As shown in Figures 1 to 3, the first member 2a of the mattress body 2 has a buttocks support section B that supports the buttocks of the user, and this buttocks support section B is provided with a plurality of upper vertical slits S2x and a plurality of upper horizontal slits S2y. These slits improve the breathability of the mattress body 2 and also assist the user in turning over in bed. In the mattress body 2 of this embodiment, in the buttocks support section B, six upper vertical slits S2x are provided on each side of the buttocks support section B, and six upper horizontal slits S2y are provided. Furthermore, in the mattress body 2 of this embodiment, eleven lower vertical slits S1x are provided on each side of the buttocks support section B.

[0039] No lower horizontal slits S1y are provided in the buttocks support section B. This configuration makes it possible to assist the turning motion while supporting the buttocks, which bear the greatest load from the user to the mattress body 2. Note that the buttocks support section B may also be provided with lower horizontal slits S1y, and the number of lower horizontal slits S1y provided in the buttocks support section B may be less than the number of lower horizontal slits S1y provided in the shoulder support section A.

[0040] The present invention is not limited to the above-described embodiments, and various modifications, substitutions, deletions, etc. can be made within the scope that does not deviate from the technical idea of ​​the present invention, and modifications, equivalents, substitutions, deletions, etc. are also included in the technical scope of the present invention. [Explanation of symbols]

[0041] 1. Mattress 2. Mattress body 21...1st layer 211... Bottom 22...2nd layer 221...Top surface 2a... First member 2b: Second member A...Shoulder support part B...buttock support part D1: First depth D2: Second depth D3: Third depth D4: Fourth depth S1: Lower slit S1x Lower vertical slit S1y Lower horizontal slit S2: Upper slit S2x: Upper vertical slit S2y: Upper horizontal slit X: Longitudinal direction Y: Short side direction

Claims

1. a foamed resin mattress body having a first layer and a second layer disposed on top of the first layer; a lower slit extending upward from the bottom surface of the first layer; an upper slit extending downward from the upper surface of the second layer; the density of the first layer is greater than the density of the second layer; The lower slit has a plurality of lower vertical slits arranged along the longitudinal direction of the mattress body and a plurality of lower horizontal slits arranged along the short direction of the mattress body, The upper slit has a plurality of upper vertical slits arranged along the longitudinal direction of the mattress body and a plurality of upper horizontal slits arranged along the short direction of the mattress body, the mattress body has a shoulder support portion that supports the shoulders of a user in a lateral position, A mattress characterized in that the shoulder support portion is provided with the plurality of upper vertical slits and the plurality of lower horizontal slits.

2. The mattress body has a buttocks support portion that supports the buttocks of the user, The buttocks support portion is provided with the plurality of upper vertical slits and the plurality of upper horizontal slits, The mattress of claim 1 , wherein the plurality of lower horizontal slits are not provided in the buttock support portion.

3. The mattress of claim 1 , wherein the plurality of lower horizontal slits provided in the shoulder support portion have a plurality of depths.

4. the plurality of depths of the plurality of lower horizontal slits provided in the shoulder support portion are of two types, a first depth and a second depth, The mattress according to claim 3, wherein the lower horizontal slits of the first depth and the lower horizontal slits of the second depth are alternately provided in the shoulder support portion.

5. The mattress of claim 1 , wherein the lower longitudinal slits have a plurality of depths in the shoulder support portion.

6. the plurality of depths of the plurality of lower vertical slits provided in the shoulder support portion are two types, a third depth and a fourth depth, The mattress according to claim 5, wherein the lower longitudinal slits of the third depth and the lower longitudinal slits of the fourth depth are alternately provided in the shoulder support portion.

7. the plurality of upper horizontal slits provided in the shoulder support portion have a plurality of depths; The mattress of claim 1, wherein the depth of the upper horizontal slit located in the center of the shoulder support portion is set deeper than the depth of the other upper horizontal slits located at the ends of the shoulder support portion.

8. The plurality of upper vertical slits provided in the shoulder support portion have a plurality of depths, A mattress as described in claim 1, wherein the depth of the upper vertical slit located in the center of the shoulder support portion is set deeper than the depth of the other upper vertical slits located at the ends of the shoulder support portion.

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