JP7246682B2 - cushion body - Google Patents

Description

The present disclosure relates to a cushion body against which a user's body rests.

2. Description of the Related Art Conventionally, various types of cushion bodies have been known which are applied to the user's body to make the user feel comfortable in bed. Japanese Unexamined Patent Application Publication No. 2015-84783 describes a mattress having uneven portions. The mattress has a plurality of protrusions arranged in a grid and a plurality of recesses arranged in a grid between the protrusions. Some of the plurality of recesses are formed with slit-like cut grooves that penetrate the mattress. The aforementioned publication also describes a mattress in which tubular grooves are formed in some of the plurality of recesses.

JP 2015-84783 A

In the mattress described above, one cut groove or one tubular groove is formed in one recess. Therefore, since only one through-hole is formed in one recess, the mattress may not exhibit sufficient flexibility even when the user lies on it, leaving room for improvement in cushioning properties.

In addition, when the number of through-holes is too large in the cushion body such as the mattress described above, the flexibility may be too high and the cushion body may easily become flattened. Furthermore, when the through-holes are randomly arranged in the cushion body, although the cushioning property of a specific portion is improved, the cushioning property of other than the specific portion may not be sufficiently improved. Thus, there is room for improvement in the uniformity of the cushioning properties as well.

An object of the present disclosure is to provide a cushion body that can uniformly form regions with high cushioning properties.

A cushion body according to one aspect of the present disclosure includes a plurality of protrusions arranged in a grid pattern, a plurality of recesses arranged in a grid pattern between the protrusions, and extending between the recesses. and a plurality of slits, wherein the recessed portion includes a first recessed portion having the slit and a second recessed portion having no slit, and the plurality of first recessed portions are formed by the protrusion and the recessed portion. It is arranged continuously in a direction inclined with respect to the direction in which it is arranged side by side, and includes a first rectangular region including a convex portion and a first concave portion, and a convex portion and a second concave portion, but does not include the first concave portion The second rectangular region and are both arranged in a grid pattern, and the cushion body has a rectangular shape extending in the longitudinal direction in a plan view and having a constant width in the width direction. The second rectangular regions are alternately arranged along each of the longitudinal direction and the width direction.
A cushion body according to another aspect of the present disclosure includes a plurality of protrusions arranged in a grid pattern, a plurality of recesses arranged in a grid pattern between the protrusions, and extending between the recesses. and a plurality of slits, wherein the recess includes a first recess having a slit and a second recess having no slit, the plurality of first recesses comprising a protrusion and a recess are arranged continuously in a direction inclined with respect to the direction in which they are arranged side by side, and include a first rectangular region including a convex portion and a first concave portion, a convex portion and a second concave portion, and a first concave portion. A second rectangular region is arranged, a first region including the first rectangular region and the second rectangular region, and a second region, and the number of slits formed in the first region is , the first region is softer than the second region, the cushion body is a mattress having a first region and a second region, and the second region is a mattress The first region is longitudinally adjacent to the second region.

The cushion body has a plurality of protrusions, a plurality of recesses, and a plurality of slits, the plurality of slits extending between the plurality of recesses. Therefore, by forming each slit to extend between the plurality of recesses, it is possible to enhance the cushioning properties of the recesses in which the slits are formed and the surroundings thereof. Also, the recess includes a first recess having a slit and a second recess having no slit. A plurality of first recesses having slits are arranged continuously in a direction inclined with respect to the direction in which the protrusions and recesses are arranged side by side. Therefore, since a plurality of first recesses having slits are continuously arranged, the cushioning properties of the first recesses and their surroundings can be further enhanced. In addition, the first rectangular regions including the first recesses and protrusions with slits and the second rectangular regions including the second recesses and protrusions without slits are both arranged in a grid pattern. Therefore, the first rectangular regions and the second rectangular regions are alternately arranged. Also, in the cushion body, the portions where the second rectangular regions having no slits are surrounded by the first rectangular regions having slits are uniformly formed. Therefore, since the second rectangular regions surrounded by the first rectangular regions having slits are uniformly arranged in the cushion body, the second rectangular regions with high cushioning properties can be uniformly arranged in the cushion body. . As a result, it is possible to uniformly form regions with high cushioning properties.

The aforementioned cushion body has a first area including a first rectangular area and a second rectangular area, and a second area, and the number of slits formed in the first area is equal to the number of slits formed in the second area. More than the number of slits, the first regions may be softer than the second regions. In this case, the cushion body comprises a soft first region and a second region harder than the first region. Therefore, the cushioning property can be uniformly enhanced in the first region, and the shape of the cushion body can be more reliably maintained in the second region.

The aforementioned cushion body may be a mattress having the first area and the second area. In this case, it is possible to provide a mattress that includes a first region with uniformly enhanced cushioning properties and a second region that is harder than the first region.

In the aforementioned cushion body, the second region may be longitudinally centrally located in the mattress, and the first region may be longitudinally adjacent to the second region. In this case, the second region of the mattress is longitudinally centered and the first region is provided adjacent to the second region. Therefore, by placing the waist of the user on the second region and the shoulders on the first region, the user's waist can be firmly supported by the hard second region, and the body pressure of the shoulders can be dispersed by the soft first region. It can be realized with certainty. As described above, since the cushioning property is uniformly enhanced in the first region, high cushioning property can be exhibited in the first region no matter how the user tosses and turns. As a result, it is possible to provide the user with a uniformly high cushioning property and to further improve the sleeping comfort.

A slit may pass through the mattress and be formed in the second region. In this case, a slit is formed through a second region located in the longitudinal center of the mattress. Therefore, when the waist of the user is placed on the second region, it is possible to enhance the cushioning properties and breathability around the waist. Therefore, it is possible to improve the breathability of the waist portion, which tends to get stuffy, thereby contributing to a further improvement in sleeping comfort for the user.

According to the present invention, it is possible to uniformly form regions with high cushioning properties.

FIG. 1 is a plan view schematically showing the cushion body according to the first embodiment. FIG. 2 is a perspective view schematically showing the surface of the cushion body of FIG. 1. FIG. 3 is a plan view showing an example of slits formed in the cushion body of FIG. 1. FIG. 4 is a perspective view showing the first region, the second region and the third region of the cushion body of FIG. 1. FIG. FIG. 5(a) is a cross-sectional view showing unevenness formed in the first region of FIG. FIG. 5(b) is a cross-sectional view showing unevenness formed in the second region of FIG. FIG. 6 is a plan view schematically showing the cushion body according to the second embodiment. 7 is an enlarged plan view of a slit formed in the cushion body of FIG. 6. FIG. 8 is a cross-sectional view showing an example of the layer structure of the cushion body of FIG. 6. FIG. FIG. 9 is a plan view schematically showing a cushion body according to the third embodiment. FIG. 10( a ) is an experimental result exemplifying the pressure when the examinee lies on his back on the cushion body according to the example. FIG. 10(b) is an experimental result exemplifying pressure distribution when a subject lies on his/her back on the cushion body according to the comparative example. FIG. 11(a) is an experimental result exemplifying the pressure when the subject lays on the cushion body according to the example while lying sideways. FIG. 11(b) is an experimental result exemplifying the pressure when the subject lays sideways on the cushion body according to the comparative example.

Below, the cushion body according to the embodiment will be described with reference to the drawings. In the description of the drawings, the same or corresponding elements are denoted by the same reference numerals, and duplicate descriptions are omitted as appropriate. In addition, the drawings may be partially simplified or exaggerated for easy understanding, and the dimensional ratios and the like are not limited to those described in the drawings.

(First embodiment)
FIG. 1 is a plan view schematically showing the cushion body 1 according to the first embodiment. FIG. 2 is a partially enlarged plan view of the cushion body 1 of FIG. The cushion body 1 is used as bedding such as a mattress, a futon, or a cushion, for example. In this embodiment, an example in which the cushion body 1 is a mattress will be described. The cushion body 1 is used, for example, housed in a dirt-preventing cover. The cushion body 1 is used as bedding, for example, by being applied to the user's body. The cushion body 1 has a rectangular shape extending in the longitudinal direction D1 in plan view. The cushion body 1 has a constant width in the width direction D2 and a constant thickness in the height direction.

The cushion body 1 includes at least a first area 3 against which the user's shoulders are applied, a second area 4 against which the user's waist is applied, and a third area 5 against which the user's legs are applied. Furthermore, the cushion body 1 may further include a fourth region 2 on which the user's head and pillow are placed, and a fifth region 6 on which the tip of the user's feet is placed. For example, the fourth region 2, the first region 3, the second region 4, the third region 5, and the fifth region 6 are arranged in this order from one end to the other end in the longitudinal direction D1.

As an example, the second region 4 may be positioned in the center of the cushion body 1 in the longitudinal direction D1, and the cushion body 1 may be mutually symmetrical with respect to the second region 4 . That is, the fourth region 2 and the fifth region 6 may be arranged symmetrically with respect to the second region 4, or the first region 3 and the third region 5 may be arranged with respect to the second region 4. They may be arranged so as to be symmetrical with each other. In this case, even if the direction of the longitudinal direction D1 of the cushion body 1 is reversed, it can be used in the same way as before it is reversed.

As an example, the length in the longitudinal direction D1 of the fourth region 2 is 15 cm or more and 45 cm or less, the length in the longitudinal direction D1 of the first region 3 is 20 cm or more and 60 cm or less, and the length in the longitudinal direction of the second region 4 is 20 cm or more and 60 cm or less. The length D1 is 25 cm or more and 70 cm or less, the length in the longitudinal direction D1 of the third region 5 is 20 cm or more and 60 cm or less, and the length in the longitudinal direction D1 of the fifth region 6 is 15 cm or more and 45 cm or less. is. The length (width) of the cushion body 1 in the width direction D2 is, for example, 80 cm or more and 200 cm or less. However, each of these length and width values can be changed as appropriate. Furthermore, at least one of the fourth area 2 and the fifth area 6 can be omitted.

The cushion body 1 includes a plurality of protrusions 11 projecting in the height direction and a plurality of recesses 12 recessed in the height direction. The second and fifth regions 6 may differ from each other in the manner of arrangement of the protrusions 11 and the recesses 12 . The projections 11 and the recesses 12 of the cushion body 1 are both arranged in a grid pattern, and the plurality of recesses 12 are arranged in a grid pattern between the plurality of projections 11 . In FIG. 1, the convex portions 11 are shown in gray and the concave portions 12 are shown in white for ease of explanation.

In a plan view, the convex portions 11 and the concave portions 12 are both arranged in respective rectangular regions (each gray or white square in FIG. 1), and are arranged in each of the longitudinal direction D1 and the width direction D2. are arranged along the FIG. 1 shows an example in which 78 such areas are arranged along the longitudinal direction D1 and 35 such areas are arranged along the width direction D2. However, the number of areas can be changed as appropriate. As an example, the length of each region in the longitudinal direction D1 is 2 cm or more and 7 cm or less, and the length of each region in the width direction D2 is 2 cm or more and 7 cm or less. However, the above length values can be changed as appropriate.

The first region 3 has a plurality of slits 13 and the third region 5 has a plurality of slits 14 . In the present embodiment, slits are not formed in the second area 4, the fourth area 2 and the fifth area 6, for example. The number and arrangement of the slits 13 and slits 14 may be the same or different. In this embodiment, an example in which the number and arrangement of the slits 13 and the slits 14 are the same will be described. Therefore, the slit 13 will be mainly described below, and the description of the slit 14 will be omitted as appropriate.

The slits 13 extend between the multiple recesses 12 . The slit 13 may, for example, extend obliquely in both the longitudinal direction D1 and the width direction D2, and penetrate the cushion body 1 in the height direction. For example, in the first region 3, a first set of slits 13 extending from the upper right to the lower left in a plan view and arranged along the width direction D2, and a plurality of slits 13 extending from the upper left to the lower right in the plan view and along the width direction D2. are arranged alternately along the longitudinal direction D1. As an example, three first sets may be provided, two second sets may be provided, and the first sets and the second sets may be alternately arranged along the longitudinal direction D1. . However, the number and arrangement of these sets can be changed as appropriate.

The recessed portion 12 includes a first recessed portion 12a in which a slit 13 is formed and a second recessed portion 12b in which no slit 13 is formed. The first region 3 includes a first rectangular region A1 including at least the convex portion 11 and the first concave portion 12a, and a second rectangular region A2 including the convex portion 11 and the second concave portion 12b but not including the first concave portion 12a. have

For example, the first rectangular area A1 and the second rectangular area A2 both have 3×3 protrusions 11 and recesses 12 . The slit 13 extends obliquely between the three recesses 12 in the first rectangular area A1. As an example, the first rectangular regions A1 and the second rectangular regions A2 are alternately arranged along the longitudinal direction D1 and the width direction D2. That is, the plurality of first rectangular regions A1 and the plurality of second rectangular regions A2 are both arranged in a lattice, and the plurality of first rectangular regions A1 are arranged between the plurality of second rectangular regions A2. arranged in a grid.

FIG. 3 is a plan view showing an example of a plurality of slits 13. FIG. Each slit 13 extends, for example, in a direction forming an angle of 45° with respect to both the longitudinal direction D1 and the width direction D2. As an example, each slit 13 has a wavy portion 13a that extends while curving in a curved shape, and enlarged diameter portions 13b that are enlarged in diameter at both ends of the wavy portion 13a in the longitudinal direction. The shape of the enlarged diameter portion 13b is, for example, circular, but may be elliptical, oval, or polygonal, and can be changed as appropriate. However, when the enlarged diameter portion 13b has a circular, elliptical, or oval shape, it does not have sharp corners, so tearing of the slit 13 can be suppressed more reliably.

Since the slit 13 has the curved wavy portion 13a, the displacement of the slit 13 in the length direction can be suppressed. However, the slit 13 may have a linear portion instead of the curved wave portion 13a. Since the slit 13 has the enlarged diameter portion 13b, the periphery of the slit 13 is more easily deformed, so that the cushioning properties and air permeability of the periphery of the slit 13 can be further enhanced.

4 is a perspective view showing the first area 3, the second area 4 and the third area 5. FIG. In FIG. 4, illustration of the slits 13 and 14 is omitted for easy understanding. As shown in FIGS. 1 and 4, the second region 4 includes a convex portion 11 and a concave portion 12 in the same manner as the regions other than the second region 4 of the cushion body 1, but the convex portion 11 is different in height and height. It further includes convex portions 15 having different widths. For example, a plurality of protrusions 15 are arranged in a grid pattern between the plurality of protrusions 11 .

By the way, when the slits 13 are formed in the cushion body 1, the deformation of the cushion body 1 due to external force increases and the cushion body 1 tends to become softer than when the slits 13 are not formed. In addition, the higher convex portion 11 tends to be more deformed by an external force and softer than the convex portion 15 .

The second region 4 is harder than the first region 3 (the third region 5) because it does not have the slits 13. As shown in FIG. Furthermore, since the height and width of the protrusions 15 of the second region 4 are smaller than the height and width of the protrusions 11 of the first region 3 (third region 5), the first region 3 (third region 5) The difference between the hardness of the second region 4 and the hardness of the second region 4 is more pronounced. Since the second area 4 is harder than the first area 3 (the third area 5 ), the waist of the user placed on the second area 4 can be firmly supported. In addition, since the first region 3 is softer than the second region 4, the shoulders of the user who sleeps sideways can be flexibly supported by the first region 3. Therefore, it is possible to provide the user with a soft feeling, thereby improving the sleeping comfort.

FIG. 5A is a cross-sectional view showing the convex portion 11 and the concave portion 12 of the first region 3. FIG. FIG. 5B is a cross-sectional view showing the protrusions 11 and 15 and the recess 12 of the second region 4. As shown in FIG. As shown in FIG. 5( a ), in the first region 3 , the protrusions 11 and the recesses 12 are sinusoidal, for example. The height and width may be the same. On the other hand, as shown in FIG. 5B, in the second region 4, the convex portions 11, the concave portions 12, and the convex portions 15 are formed in a curved wave shape. However, for example, the height H2 and width B2 of the protrusion 15 are approximately half the height H1 and width B1 of the protrusion 11, and the height H2 and width B2 of the protrusion 15 are equal to the height of the protrusion 11. smaller than H1 and width B1.

Next, functions and effects obtained from the cushion body 1 according to the first embodiment will be described in detail. As shown in FIG. 1 , the cushion body 1 has a plurality of protrusions 11 , a plurality of recesses 12 and a plurality of slits 13 , and the plurality of slits 13 extend between the plurality of recesses 12 . Therefore, by forming each slit 13 to extend between the plurality of recesses 12, the recess 12 (first recess 12a) in which the slit 13 is formed and its surroundings can be cushioned and ventilated. can be done.

The recesses 12 include first recesses 12a having slits 13 and second recesses 12b having no slits 13, and the plurality of first recesses 12a having slits 13 extend in both the longitudinal direction D1 and the width direction D2. It is arranged so as to be continuous in the direction in which it is inclined. Therefore, since the plurality of first recesses 12a having the slits 13 are continuously arranged, it is possible to further enhance the cushioning properties and air permeability of the first recesses 12a and their surroundings.

In addition, both the first rectangular area A1 including the first concave portion 12a having the slit 13 and the convex portion 11 and the second rectangular area A2 including the second concave portion 12b and the convex portion 11 without the slit 13 are lattice-like. are placed in Therefore, the first rectangular areas A1 and the second rectangular areas A2 are alternately arranged. Also, in the first area 3, the second rectangular area A2 without the slit 13 is surrounded by the first rectangular area A1 with the slit 13, and the area is uniformly formed.

That is, in the first region 3, a region (second rectangular region A2) having no slit 13 surrounded by a region (first rectangular region A1) having the slit 13 is uniformly formed in the first region 3. Therefore, the second rectangular regions A2 having high cushioning properties can be uniformly arranged in the first region 3. As shown in FIG. As a result, a region having high cushioning properties and air permeability can be uniformly formed in the first region 3 .

The cushion body 1 includes a first region 3 including a first rectangular region A1 and a second rectangular region A2, and a second region 4. The number of slits 13 formed in the first region 3 is the second The first region 3 may be softer than the second region 4 with more slits formed in the region 4 . In this case, the cushion body 1 comprises a soft first region 3 and a second region 4 harder than the first region 3 . Therefore, the cushioning properties and air permeability can be uniformly improved in the first region 3, and the shape of the cushion body 1 can be more reliably maintained in the second region 4. As shown in FIG.

The cushion body 1 may be a mattress having a first area 3 and a second area 4 . In this case, it is possible to provide a mattress that includes the first region 3 with uniformly enhanced cushioning properties and breathability and the second region 4 that is harder than the first region 3 .

In the cushion body 1, the second region 4 may be centrally located in the longitudinal direction D1 of the mattress, and the first region 3 may be adjacent to the second region 4 in the longitudinal direction D1. In this case, the second region 4 of the mattress is centrally located in the longitudinal direction D1 and the first region 3 is provided adjacent to the second region 4 .

Therefore, by placing the waist of the user on the second area 4 and the shoulders on the first area 3, the hard second area 4 can firmly support the waist and the soft first area 3 can support the shoulders. body pressure distribution can be reliably realized. As described above, since the first region 3 has uniformly enhanced cushioning properties and breathability, the first region 3 exhibits high cushioning properties and breathability no matter how the user tosses and turns. Therefore, it is possible to provide the user with uniformly high cushioning properties and breathability, and further improve the sleeping comfort.

(Second embodiment)
Next, a cushion body 21 according to a second embodiment will be described with reference to FIGS. 6 to 8. FIG. In the cushion body 21, the slits 23, 24, 25 are different in shape and arrangement from the first embodiment. In the following description, the description overlapping with that of the first embodiment will be omitted as appropriate. In the cushion body 21 , the first region 3 has a plurality of slits 23 , the third region 5 has a plurality of slits 24 , and the second region 4 has a plurality of slits 25 . The shape, number and arrangement of the slits 23 and 24 may be the same or different.

The shape of the slit 23 may be the same as or different from the shape of the slit 25 . In this embodiment, an example will be described in which the slits 23 and 24 have the same shape, number, and arrangement, and the shape of the slit 23 is the same as the shape of the slit 25 . Therefore, the slit 23 will be mainly described below, and the description of the slits 24 and 25 will be omitted as appropriate.

The slit 23 extends between the plurality of recesses 12 and has, for example, an X shape that is inclined in both the longitudinal direction D1 and the width direction D2. The slit 23 penetrates the cushion body 21 in the height direction. In this way, the X-shaped slit 23 is more deformable than the slit 13 described above, and can exhibit higher cushioning properties and breathability.

As described above, the recess 12 includes a first recess 12a having a slit 23 and a second recess 12b having no slit 23. The first region 3 includes the protrusion 11 and the first recess. It has a first rectangular area A1 including 12a and a second rectangular area A2 including the convex portion 11 and the second concave portion 12b but not including the first concave portion 12a. In the first rectangular area A1, for example, the slit 23 extends in an X shape between the five recesses 12. As shown in FIG. Furthermore, in the second embodiment, the first rectangular area A1 does not have the second recess 12b.

In addition, in the cushion body 21 according to the second embodiment, the second region 4 has a first rectangular region A1 and a second rectangular region A2 in a region including the center of the cushion body 21 . For example, in the second region 4 of the cushion body 21, in the region including the center of the cushion body 21, a total of three second rectangular regions A2 and first rectangular regions A1 are arranged alternately along the longitudinal direction D1. , a total of five second rectangular regions A2 and first rectangular regions A1 are alternately arranged along the width direction D2.

That is, eight second rectangular regions A2 and seven first rectangular regions A1 are alternately arranged in a region including the center of the cushion body 21. As shown in FIG. Thus, in the cushion body 21 , the slit 25 is formed in the center of the second region 4 . In the second area 4, as in the first area 3, a plurality of first rectangular areas A1 and a plurality of second rectangular areas A2 are both arranged in a grid.

FIG. 7 is a plan view showing the slit 23. FIG. For example, the slits 23 (slits 24 and 25) include a central penetrating portion 23a and a plurality of slits (one example is and four straight portions 23b, and an enlarged diameter portion 23c at the end of each straight portion 23b opposite to the central through portion 23a. The shape of each enlarged diameter portion 23c is, for example, circular like the enlarged diameter portion 13b, but may be of another shape.

The slit 23 has an X-shape having a central through portion 23a and a plurality of straight portions 23b radially extending from the central through portion 23a. In particular, high cushioning properties are exhibited around the central through portion 23a and between the plurality of straight portions 23b. And the slit 23 can further improve cushioning property and air permeability by having the enlarged diameter part 23c.

FIG. 8 is a sectional view showing the layered structure of the cushion body 21. As shown in FIG. As shown in FIG. 8, the convex portion 11 of the cushion body 21 includes a first hard layer 26, a soft layer 27 softer than the first hard layer 26, and a second hard layer 28 harder than the soft layer 27, in order from the top. may be In this case, the cushion body 21 has a three-layer structure including a first hard layer 26, a soft layer 27 and a second hard layer . For example, the first hard layer 26 is a contact layer with which the user's body comes into contact, the soft layer 27 is a body pressure distribution layer that disperses the body pressure of the body, and the second hard layer 28 maintains the sleeping posture of the user. It corresponds to a sleeping posture holding layer.

As described above, the cushion body 21 has a three-layer structure consisting of the first hard layer 26, the soft layer 27 and the second hard layer 28, and is sandwiched between the first hard layer 26 and the second hard layer 28. Since the body pressure is dispersed by the soft layer 27, it is possible to keep giving the user a good feeling of fit even when lying on the cushion body 21 for a long time. The hardness of the first hard layer 26 and the hardness of the second hard layer 28 may be the same or different. Also, instead of the three-layer structure of the first hard layer 26, the soft layer 27 and the second hard layer 28, a three-layer structure of the first soft layer, the hard layer and the second soft layer may be provided. Further, the cushion body 1 of the first embodiment may have the first hard layer 26, the soft layer 27 and the second hard layer 28.

As shown in FIG. 6, a cushion body 21 according to the second embodiment includes a first rectangular region A1 including a first concave portion 12a having a slit 23 and a convex portion 11, and a second concave portion 12b having no slit 23. , and a second rectangular region A2 including the projections 11 are arranged in a grid pattern. Therefore, in the first area 3, the second rectangular area A2 without the slit 23 is surrounded by the first rectangular area A1 with the slit 23, forming a uniform area. Therefore, similarly to the first embodiment, it is possible to uniformly form a region having high cushioning properties and air permeability in the first region 3 .

In the cushion body 21 , slits 25 may be formed in the second region 4 while passing through the mattress. In this case, a slit 25 is formed through the second region 4 located in the center of the mattress in the longitudinal direction D1. Therefore, when the waist of the user is placed on the second region 4, it is possible to enhance the cushioning properties and breathability around the waist. Therefore, it is possible to improve the breathability of the waist portion, which tends to get stuffy, thereby contributing to a further improvement in sleeping comfort for the user. In addition, in the cushion body 1 according to the first embodiment, a slit 25 passing through the mattress may be formed in the second region 4 .

(Third embodiment)
Next, a cushion body 31 according to a third embodiment will be described with reference to FIG. The cushion body 31 according to the third embodiment differs from that of the second embodiment in the number and size of the first rectangular regions A31 and the second rectangular regions A32. That is, in the first and second embodiments, the width of the first rectangular area A1 in which the slits 13 and 23 are formed and the width of the second rectangular area A2 in which the slits 13 and 23 are not formed are the same. We have described an example where However, in the third embodiment, the width of the first rectangular area A31 in which the slits 23 are formed is narrower than the width of the second rectangular area A32 in which the slits 23 are not formed. Therefore, the number and density of the slits 23 of the third embodiment are smaller than the number and density of the slits 23 of the second embodiment.

As described above, in the cushion body 31 according to the third embodiment, the first rectangular regions A31 and the second rectangular regions A32 are both arranged in a grid pattern in the same manner as in the cushion bodies 1 and 21. Therefore, in the first region 3, A region with high cushioning properties and air permeability can be uniformly formed. Further, since the slits 25 penetrating the second region 4 are formed, it is possible to enhance the cushioning properties and air permeability around the waist.

Each embodiment of the cushion body according to the present disclosure has been described above. However, the present invention is not limited to the above-described embodiments, and may be modified without changing the gist of the claims. That is, the shape, size, material, number, and layout of each part of the cushion body can be changed as appropriate without changing the gist of the above. For example, in the above embodiment, the cushion body 1 having the first region 3, the second region 4, the third region 5, the fourth region 2 and the fifth region 6 was described. However, the number of regions that the cushion body has may be 1 or more and 4 or less, or 6 or more, and can be changed as appropriate.

In the above-described embodiment, an example in which the slit 13 has the curved wave portion 13a was described. However, at least one of slit 14, slit 23, slit 24, and slit 25 may have a wavy portion similar to wavy portion 13a. As a specific example, the slit 23 shown in FIG. 7 may have a wavy portion similar to the wavy portion 13a instead of the straight portion 23b. In this case, similarly to the above, it is possible to suppress the displacement of the wavy portion of the slit 23 in the length direction.

In the above-described embodiment, an example in which the cushion bodies 1, 21, 31 are mattresses has been described. However, the cushion body according to the present invention can also be applied to other than mattresses. It can also be applied to a seat for a transport machine, or a seat other than a transport machine such as a chair for nursing care.

(Example)
Below, the example of a cushion body is described. In addition, the present invention is not limited to the following examples. In the example, the body pressure distribution was measured when the cushion body 1 having the slit 13 formed in the first region 3 was used, and in the comparative example, the body pressure distribution was measured when the cushion body without the slit 13 formed in the first region was used. Pressure dispersion was measured.

FIG. 10(a) and FIG. 10(b) show the results of measuring body pressure dispersion in the above examples and comparative examples with the subject lying on his/her back on the bedding. Fig. 10(a) shows the measurement results when the subject is laid on his back on the cushion body 1 of the example, and Fig. 10(b) shows the measurement results when the subject is laid on his back on the cushion body of the comparative example. is shown. 10(a) and 10(b) show the values of the pressure applied to the cushion body in a matrix form, where high pressure is applied to dark-colored portions and low pressure is applied to light-colored portions. It shows that it is not applied.

As shown in FIG. 10(b), in the case of the comparative example without slits, high pressure is applied to the subject's shoulders and hips. On the other hand, as shown in FIG. 10(a), in the case of the embodiment using the cushion body 1 with slits 13, the pressure applied to the shoulders and waist is relieved, and the cushion body 1 allows the examinee to body pressure is distributed.

The maximum body pressure applied to the cushion bodies of the comparative examples was 30 mmHg to 35 mmHg, and the average body pressure was 8 mmHg to 10 mmHg. , mean body pressure ranged from 6 mmHg to 8 mmHg. Thus, it was found that the cushion body 1 with the slits 13 can reduce both the maximum body pressure and the average body pressure.

FIG. 11(a) shows, in a matrix form, the pressure values when the subject lays sideways on the cushion body 1 of the example, and FIG. The pressure values when lying on the side are shown in a matrix. As shown in FIG. 11(b), in the case of the comparative example without slits, high pressure is applied to the shoulders and hips of the subject lying on his side.

On the other hand, as shown in FIG. 11(a), in the case of the embodiment using the cushion body 1 with slits 13, the pressure applied to the shoulders and hips of the examinee lying sideways is relieved. It can be seen that the cushion body 1 distributes the body pressure of the subject lying sideways. Further, the maximum body pressure applied to the cushion body of the comparative example when lying on its side was about 35 mmHg, and the average body pressure was about 10 mmHg to 12 mmHg. The maximum body pressure was about 30 mmHg, and the average body pressure was about 8 mmHg. Thus, it was found that the cushion body 1 with the slits 13 can reduce both the maximum body pressure and the average body pressure even when lying on one's side.

1, 21, 31...Cushion body 2...Fourth area 3...First area 4...Second area 5...Third area 6...Fifth area 11...Convex part 12...Concave part 12a... First concave portion 12b Second concave portion 13, 14 Slit 13a Waveform portion 13b Expanded diameter portion 15 Convex portion 23, 24, 25 Slit 23a Center through portion 23b Straight portion , 23c... Expanded diameter portion 26... First hard layer 27... Soft layer 28... Second hard layer A1, A31... First rectangular area A2, A32... Second rectangular area B1, B2... Width, D1... longitudinal direction, D2... width direction.

Claims (3)

a plurality of protrusions arranged in a lattice;
a plurality of recesses arranged in a lattice between the plurality of protrusions;
a plurality of slits extending between the plurality of recesses;
A cushion body comprising
The recess includes a first recess having the slit and a second recess having no slit,
The plurality of first recesses are arranged continuously in a direction inclined with respect to the direction in which the protrusions and the recesses are arranged side by side,
A first rectangular region including the protrusion and the first recess, and a second rectangular region including the protrusion and the second recess but not including the first recess are both arranged in a grid pattern. cage,
The cushion body has a rectangular shape extending in the longitudinal direction in plan view and having a constant width in the width direction,
The first rectangular regions and the second rectangular regions are alternately arranged along each of the longitudinal direction and the width direction,
cushion body. a plurality of protrusions arranged in a lattice;
a plurality of recesses arranged in a lattice between the plurality of protrusions;
a plurality of slits extending between the plurality of recesses;
A cushion body comprising
The recess includes a first recess having the slit and a second recess having no slit,
The plurality of first recesses are arranged continuously in a direction inclined with respect to the direction in which the protrusions and the recesses are arranged side by side,
A first rectangular region including the protrusion and the first recess, and a second rectangular region including the protrusion and the second recess but not including the first recess are arranged,
A first region including the first rectangular region and the second rectangular region, and a second region,
The number of slits formed in the first region is greater than the number of slits formed in the second region,
The first region is softer than the second region,
The cushion body is a mattress having the first region and the second region,
The second region is located in the longitudinal center of the mattress,
the first region is longitudinally adjacent to the second region;
cushion body. The slit passes through the mattress and is formed in the second region,
The cushion body according to claim 2 .

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