mat

Abstract

Provided is a mat (1) that can promote breathing in a supine position. A mat 1 supports at least the region of a supine person 50 corresponding to the pelvis PV, the mat comprising a pair of iliac support parts 11 for supporting the regions of the supine person 50 corresponding to the pair of iliac bones LM, and a sacrum support part 12 for supporting the region of the supine person 50 corresponding to the sacrum S of the supine person 50. Each of the iliac support parts 11 has an iliac-lower-part-supporting part 11a for supporting the region of the supine person 50 corresponding to a portion of the iliac bone LM that is below the sacroiliac joint J1, and an iliac-upper-part-corresponding part 11b that corresponds to a portion of the iliac bone LM of the supine person 50 that is above the sacroiliac joint J1. The body pressure from the sacrum support part 12 and the body pressure from the iliac-upper-part-corresponding part 11b are configured to be lower than the body pressure from the iliac-lower-part-supporting part 11a.

Description

[Technical Field]

[0001] The present invention relates to a mat, and more particularly to a mat that allows for promotion of breathing when lying on one's back. [Background technology]

[0002] As a result of extensive research into how to promote breathing when lying on one's back, focusing on the movement of the pelvis, the inventor discovered that promoting a nodding movement (anterior rotation) (see arrow S1) in which the sacrum S, located between a pair of iliac bones LM in the pelvis PV, tilts forward at the sacroiliac joint JI, as shown in Figures 5A and 5B, leads to the invention of the mat disclosed in Patent Document 1.

[0003] The mat disclosed in Patent Document 1 includes a pair of ilium support parts that support the areas corresponding to the pair of iliac bones of a person lying on their back, and a sacrum support part that supports the area corresponding to the sacrum of a person lying on their back, and the vertical height of the sacrum support parts is set to a lower vertical height than the vertical height of the ilium support parts, which reduces body pressure on the sacrum and allows for smoother nodding movements of the sacrum compared to a uniformly flat mat.

[0004] However, as shown in Figures 5A and 5B, when the sacrum S makes a nodding movement (forward rotation) (see arrow S1), a pair of iliac bones LM (a pair of hip bones HB) makes a rearward tilting, rising movement (backward rotation) (see arrow LM1). Therefore, it has been found that simply reducing the body pressure on the sacrum S, as with the mat disclosed in Patent Document 1, only limits the nodding movement of the sacrum S and is not very effective, leaving room for improvement. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6971516 Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above circumstances, and has as its object to provide a mat that makes it possible to promote breathing when lying on one's back. [Means for solving the problem]

[0007] The mat of the present invention is a mat that supports at least the area corresponding to the pelvis of a person lying on their back, and is equipped with a pair of ilium support portions that support the areas corresponding to the person's pair of iliac bones, and a sacrum support portion that supports the area corresponding to the person's sacrum, and the ilium support portions have a lower ilium support portion that supports the area corresponding to the part of the person's ilium below the sacroiliac joint, and an upper ilium corresponding portion that corresponds to the part of the person's ilium above the sacroiliac joint, and is configured so that body pressure from the sacrum support portions and body pressure from the upper ilium corresponding portions is lower than body pressure from the lower ilium support portions. [Brief explanation of the drawings]

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5A

Figure 5B

[0009] Hereinafter, a mat according to an embodiment of the present invention will be described with reference to the drawings.

[0010] (Summary of Mat 1) The mat 1 according to the embodiment of the present invention shown in FIG. 1 can be used by placing it on a futon or a mattress for a bed, or as a mattress for a futon or a bed. The mat 1 is formed in a rectangular parallelepiped shape from a resilient material such as urethane. A person 50 can lie on the mat 1 in the same way as a futon or a mattress for a bed. The mat 1 may be used covered with a cover (not shown). In this case, it is preferable that the cover be made of a fabric with excellent flexibility in order for the mat 1 to perform the functions described below.

[0011] In this specification and drawings, to represent directions on the mat 1, a depth direction X (head side X1, leg side X2) corresponding to the up-down direction in which the body of the person 50 lying on their back extends, a width direction Y (right side Y1, left side Y2) corresponding to the left-right direction of the body of the person 50 lying on their back, and a vertical up-down direction Z (upper side Z1, lower side Z2) corresponding to the front-to-back direction (ventral side, back side) of the body of the person 50 lying on their back are defined.

[0012] As shown in FIG. 1, the mat 1 includes a flat rectangular parallelepiped base portion 2 and three portions protruding upward Z1 from an upper surface 2a of the base portion 2, namely a back support portion 3, a pelvis support portion 4, and a leg support portion 5. The back support portion 3 supports the back of a person 50 lying on their back. The pelvis support portion 4 is located on the leg side X2 of the back support portion 3, and supports a region corresponding to the pelvis PV (see FIGS. 3 and 4) of the person 50 lying on their back. The leg support portion 5 is located on the leg side X2 of the pelvis support portion 4, and supports the thighs of the person 50 lying on their back.

[0013] A head placement area 6 is formed on the mat 1 on the head side X1 of the back support section 3, where the head of the person 50 lying on their back is placed. In the head placement area 6, the upper surface 2a of the base section 2 is exposed. A pillow P for supporting the head of the person 50 lying on their back is placed in the head placement area 6. On the leg side X2 of the mat 1 on the leg support section 5, a knee, lower leg and foot placement area 7 is formed, where the portion of the person 50 lying on their back from the knees to the toes is placed. In the knee, lower leg and foot placement area 7, the upper surface 2a of the base section 2 is exposed.

[0014] (Explanation of pelvic PV) The pelvic PV supported by the pelvic support section 4 will now be described. As shown in Figures 3 to 4, 5A, and 5B, the pelvic PV is an overall skeleton that is a truncated cone-shaped ring that tapers downward. The pelvic PV is composed of four bones: the sacrum S, the coccyx CC, and a pair of ilium HB. The sacrum S is a triangular bone that tapers downward and forms the posterior wall of the pelvic PV. The coccyx CC is the lowest bone of the spine SC and is attached to the lower end of the sacrum S. The pair of ilium HB is a pair of flat bones that form the anterior and left and right walls of the pelvic PV. The ilium HB is composed of the ilium LM, the pubis PB, and the ischium SN. The ilium LM forms the upper part of the ilium HB. The pubis PB forms the anterior and inferior part of the ilium HB. The ischium SN forms the posterior and inferior part of the ilium HB. At the anterior of the pelvic PV, the pair of pubic bones PB join along the midline of the body to form the pubic symphysis PBa. At the back of the pelvis PV, a pair of ilia LM joins with the sacrum S located between them to form a pair of sacroiliac joints J1. The pair of sacroiliac joints J1 are formed when a pair of auricular surfaces LMa located on the posterior-inferior sides of the upper parts of the pair of ilia LM (iliac wings) join with a pair of auricular surfaces Sa located on the left and right sides of the sacrum S.

[0015] (Explanation of pelvic support part 4) In order to support the region corresponding to the pelvis PV of the person 50 lying on his / her back, the pelvis support portion 4 of this embodiment is configured as follows.

[0016] As shown in FIGS. 1 to 4, the pelvis support portion 4 includes a pair of ilium support portions 11 spaced apart from each other in the width direction Y, a sacrum support portion 12 disposed between the pair of ilium support portions 11, and a pair of sacrum support portions 12 disposed closer to the legs X2 than the pair of ilium support portions 11. Sit It has a bone support portion 13.

[0017] The pair of iliac support portions 11 are located below Z2 the regions corresponding to the pair of iliac bones LM of the person 50 lying on his / her back, and individually support these regions from below Z2.

[0018] The sacral support portion 12 is disposed between the pair of ilium support portions 11, and is located below Z2 the region corresponding to the sacrum S of the person 50 lying on his / her back, and supports that region from below Z2.

[0019] The distance between the pair of iliac bones LM increases from the rear (back side) to the front (ventral side), and the width of the sacrum S also increases from the rear (back side) to the front (ventral side). The sacrum S fits between the upper posterior parts of the pair of iliac bones LM, so the upper posterior parts of the pair of iliac bones LM overlap the rear of the left and right ends of the sacrum S. The coccyx CC is attached to the lower end of the sacrum S. The sacral support part 12 considers the upper posterior parts of the pair of iliac bones LM and the coccyx CC to be part of the sacrum S, and is located below Z2 the part corresponding to the sacrum S, supporting that part from below Z2.

[0020] a pair Sit The bone support portion 13 is disposed on the leg side X2 of the pair of iliac support portions 11, and Sit It is located below Z2 of the area (buttocks) corresponding to the bone SN, and supports that area from below Z2.

[0021] The ilium support portion 11 has a lower ilium support portion 11a that supports a portion of the ilium LM corresponding to a portion below the sacroiliac joint JI (auricular surface LMa), and an upper ilium corresponding portion 11b that corresponds to a portion of the ilium LM above the sacroiliac joint J1 (auricular surface LMa), and the vertical height of the sacrum support portion 12 and the vertical height of the upper ilium corresponding portion 11b are set to be lower than the height of the lower ilium support portion 11a. This configuration makes it possible for the body pressure exerted from the sacrum support portion 12 to a portion corresponding to the sacrum S of a person 50 lying on their back, and the body pressure exerted from the upper ilium corresponding portion 11b to a portion of the ilium LM of a person 50 lying on their back above the sacroiliac joint J1, to be lower than the body pressure exerted from the lower ilium support portion 11a to a portion of the ilium LM of a person 50 lying on their back, below the sacroiliac joint JI.

[0022] The lower ilium support portion 11a is located below Z2 a portion of the pair of iliac bones LM of the supine person 50 that corresponds to the portion below the sacroiliac joints JI, and supports that portion from below Z2.

[0023] The upper ilium corresponding portion 11b is located below Z2 a region corresponding to a portion of the pair of iliac bones LM of the supine person 50 above the sacroiliac joints JI, and supports that region from below Z2.

[0024] Sit The sacrum support portion 12 is configured so that the vertical height thereof is lower than the vertical height of the lower ilium support portion 11a. The sacrum support portion 12 applies body pressure to a portion corresponding to the sacrum S of the person 50 lying on his / her back from the pair of ischial support portions 13. Sit It is configured to be lower than the body pressure applied to the area corresponding to the bone SN.

[0025] The pelvic support part 4 is made up of five parts, namely, a pair of iliac support parts 11, each of which corresponds to the upper part of the iliac bone 11b, a sacral support part 12, and a pair of pelvic support parts 11a, 11b ... Sit With the exception of the pelvic bone support portion 13, the pelvic support portion 4 is formed at the same vertical height as the back support portion 3 and the leg support portion 5. As a result, the lower ilium support portion 11a of each of the pair of ilium support portions 11 in the pelvic support portion 4 is formed at the same vertical height as the back support portion 3 and the leg support portion 5. The five portions of the pelvic support portion 4, namely, the upper ilium corresponding portions 11b of each of the pair of ilium support portions 11, the sacrum support portion 12, and the pair of Sit The bone support portion 13 is formed by a recess of the same depth provided in the pelvic support portion 4. As a result, the upper ilium corresponding portions 11b of the pair of ilium support portions 11 and the sacrum support portion 12 are Sit The sacral support portion 13 is formed to the same vertical height, and is formed to a vertical height lower than the lower ilium support portion 11a of each of the pair of ilium support portions 11. As a result, the vertical height of the sacral support portion 12 and the vertical height of the upper ilium corresponding portion 11b are set to a vertical height lower than the vertical height of the lower ilium support portion 11a, so that the body pressure from the sacral support portion 12 and the body pressure from the upper ilium support corresponding portion 11b are lower than the body pressure from the lower ilium support portion 11a, SitThe vertical height of the bone support part 13 is set to a vertical height lower than the vertical height of the lower ilium support part 11a, so that the body pressure from the ischium support part 13 is lower than the body pressure from the lower ilium support part 11a.

[0026] The upper ilium corresponding portions 11b of the pair of iliac support portions 11 and the sacrum support portion 12 and the pair Sit The upper surface 2a of the base portion 2 is exposed at the bone support portion 13. The vertical height of each of the upper ilium corresponding portions 11b of the pair of ilium support portions 11 and the vertical height of the sacrum support portion 12 are Sit The vertical height of the bone support portion 13 is set to the same vertical height as the vertical height at which the upper surface 2a of the base portion 2 is exposed, but it may be set to a different vertical height from that vertical height. Sit The vertical heights between the bone support portion 13 may be different.

[0027] The sacrum support portion 12 is made up of a hole 12a of the same shape as the sacrum support portion 12, which is provided in a portion of the base portion 2 corresponding to the sacrum support portion 12, and a sacrum support member 12b which is made of an elastic material such as urethane that has a weaker elasticity (softer) than the material of the mat 1 other than the sacrum support portion 12 and is fitted into the hole 12a. As a result, the sacrum support portion 12 applies body pressure to the portion corresponding to the sacrum S of the person 50 lying on their back through the pair of ischial support portions 13. Sit It is configured to be lower than the body pressure applied to the area corresponding to the bone SN.

[0028] The sacral support portion 12 may be configured such that its vertical height is set lower than that of the pair of ischial support portions 13, so that the body pressure from the sacral support portion 12 is lower than the body pressure from the pair of ischial support portions 13.

[0029] In the pelvic support part 4, the triangular recessed part that narrows at the leg side X2 provided in the center of the pelvic support part 4 and the triangular part that narrows at the leg side X2 of the base part 2 located directly below this part Z2, i.e., the sacrum support part 12b, are located below Z2 the part corresponding to the sacrum S of the person 50 lying on their back, form the sacrum support part 12, and support the part corresponding to the sacrum S of the person 50 lying on their back from below Z2.

[0030] In the pelvic support part 4, a pair of rectangular convex parts located on the widthwise outer sides Y1, Y2 of the triangular recess that narrows on the leg side X2 in the sacrum support part 12 and a pair of rectangular parts of the base part 2 located directly below these parts Z2 are located below Z2 the part of the pair of iliac bones LM of the person 50 lying on their back that corresponds to the part below the sacroiliac joints JI, and form the respective lower ilium support parts 11a of the pair of ilium support parts 11, which support the part of the pair of iliac bones LM of the person 50 lying on their back from below Z2.

[0031] In the pelvic support portion 4, a pair of rectangular concave portions located on the head side X1 of the rectangular convex portions of each lower ilium support portion 11a of the pair of ilium support portions 11 and a pair of rectangular portions of the base portion 2 located directly below these portions Z2 are located below Z2 of the portion corresponding to the portion above the sacroiliac joint JI of the pair of iliac bones LM of the person 50 lying on their back, and form the upper ilium corresponding portions 11b of each of the pair of ilium support portions 11, which support the portion corresponding to the portion above the sacroiliac joint JI of the pair of iliac bones LM of the person 50 lying on their back from below Z2.

[0032] In the pelvic support portion 4, the upper ilium corresponding portions 11b of the pair of iliac support portions 11 are connected together at a position X1 on the cranial side relative to the sacral support portion 12, and are integrated into one body.

[0033] In the pelvis support part 4, a pair of rectangular recessed parts on the leg side X2 of the rectangular protruding parts of each of the lower iliac support parts 11a of the pair of iliac support parts 11 and a pair of rectangular parts of the base part 2 located directly below the rectangular recessed parts Z2 are positioned so as to fit the pair of pelvises of the person 50 lying on their back. Sit It is located in the lower Z2 area (buttocks) corresponding to the bone SN, and has a pair of SitThe bone support 13 is a pair of bones of a person 50 lying on their back. Sit The area corresponding to the bone SN is supported from below Z2.

[0034] In the pelvic support part 4, a pair of Sit The bone support portion 13 is connected to the sacrum support portion 12 at a position closer to the leg X2 than the sacrum support portion 12 and is integrated.

[0035] In the pelvic support portion 4, the sacrum support portion 12 is a pair of integrally connected legs X2 closer to the sacrum support portion 12. Sit The end of the leg side X2 of the sacrum support part 12 is formed in a protruding state within the bone support part 13.

[0036] The pelvic support portion 4 has seven portions, namely, the lower ilium support portions 11a of the pair of iliac support portions 11, the upper ilium corresponding portions 11b of the pair of iliac support portions 11, the sacrum support portion 12, and the pair of iliac support portions 11a and 11b. Sit The body pressure applied from the pelvic support parts 13 to the corresponding parts of the person 50 lying on his / her back is set by the vertical height of each part, but it may be set by the elasticity of the material of each part. For example, the pelvic support part 4 has five parts, namely, the upper ilium corresponding parts 11b of the pair of iliac support parts 11, the sacrum support part 12, and the pair of pelvic support parts 13. Sit The bone support portion 13 is formed by recesses provided in the pelvis support portion 4, but the portions corresponding to these recesses may be formed with an elastic material such as urethane that has a weaker elasticity (softer) than the other materials forming the mat 1 so as to eliminate (fill in) these recesses, thereby configuring the body pressure from the sacrum support portion 12 and the body pressure from the upper ilium corresponding portion 11b to be lower than the body pressure from the lower ilium support portion 11a, and also configuring the body pressure from the ischium support portion 13 to be lower than the body pressure from the lower ilium support portion 11a. In this case, the sacrum support portion 12 may be formed from a pair of SitBy using an elastic material such as urethane that has a weaker elasticity (softer) than the material forming the bone support portion 13, it is possible to configure the body pressure from the sacrum support portion 12 to be lower than the body pressure from the ischium support portion 13. This makes it possible to omit the hole 12a and the sacrum support portion 12b.

[0037] (Relationship between exhalation and nodding movement of the sacrum S) The sacrum S is closely related to breathing and moves with breathing. If this movement of the sacrum S is stopped, breathing will be impaired. When a person 50 lying on their back exhales (exhales), the upper body curls forward, and as shown in Figures 5A and 5B, the sacrum S tilts forward at the sacroiliac joint JI in a nodding motion (anterior rotation) (see arrow S1), causing the pair of iliac bones LM (pair of hip bones HB) to tilt backward and rise up (posterior rotation) (see arrow LM1). Furthermore, when a person 50 lying on their back inhales (inhales), the upper body leans backward, and as shown in Figure 5A, the sacrum S tilts backward at the sacroiliac joint JI in a rise up motion (posterior rotation), causing the pair of iliac bones LM (pair of hip bones HB) to tilt forward and rise up (posterior rotation). If the pair of iliac support portions 11 are uniformly flat, the upright movement of the pair of iliac bones LM is inhibited by the uniformly flat pair of iliac support portions 11, and as a result, the nodding movement of the sacrum S is limited.

[0038] (Features of this embodiment) (1) The inventor has discovered that in order to promote breathing when lying on one's back, encouraging the sacrum S, located between a pair of iliac bones LM in the pelvis PV, to nod (anterior rotation) (see arrow S1) in such a way that it tilts forward at the sacroiliac joint JI, as shown in Figures 5A and 5B, leads to promotion of breathing. The inventor has invented a mat that includes a pair of iliac support parts that support the areas corresponding to the pair of iliac bones of a person lying on their back, and a sacral support part that supports the areas corresponding to the sacrum of a person lying on their back, and in which the vertical height of the sacral support parts is set to a lower vertical height than the vertical height of the iliac support parts. However, as shown in Figures 5A and 5B, when the sacrum S makes a nodding movement (forward rotation) (see arrow S1), the pair of iliac bones LM (pair of hip bones HB) makes a rearward tilting, rising movement (posterior rotation) (see arrow LM1). Therefore, it was found that conventional mats that only reduce the body pressure on the sacrum S only limit the nodding movement of the sacrum S and are not very effective, which led to the invention of the mat 1 with the above configuration.

[0039] In other words, the mat 1 of this embodiment is a mat that supports at least the area corresponding to the pelvis PV of a person 50 lying on their back, and is equipped with a pair of ilium support portions 11 that support the areas corresponding to the pair of iliac bones LM of the person 50 lying on their back, and a sacrum support portion 12 that supports the area corresponding to the sacrum S of the person 50 lying on their back, and the ilium support portion 11 has a lower ilium support portion 11a that supports the area corresponding to the part of the ilium LM of the person 50 lying on their back below the sacroiliac joint J1, and an upper ilium corresponding portion 11b that corresponds to the part of the ilium LM of the person 50 lying on their back above the sacroiliac joint J1, and is configured so that the body pressure from the sacrum support portion 12 and the body pressure from the upper ilium corresponding portion 11b is lower than the body pressure from the lower ilium support portion 11a.

[0040] With this configuration, the body pressure from the sacral support portion 12 and the body pressure from the upper ilium corresponding portion 11b are lower than the body pressure from the lower ilium support portion 11a, reducing the body pressure on the sacrum S and also reducing the body pressure on the part of the ilium LM above the sacroiliac joint J1.As a result, when the sacrum S makes a nodding movement, the upper ilium corresponding portion 11b sinks more easily than the lower ilium support portion 11a, making it easier for the pair of iliac bones LM to rise up.This makes it possible to promote the nodding movement of the sacrum S more effectively than conventional mats, and as a result, it is possible to promote the breathing of a person 50 lying on their back more effectively than conventional mats.

[0041] (2) In the mat 1 of this embodiment, a pair of people 50 lying on their backs Sit A pair of bones supporting the area corresponding to the SN Sit The seat is provided with a sacral support portion 13, and is configured so that the body pressure from the sacral support portion 12 is lower than the body pressure from the ischial support portion 13.

[0042] According to this configuration, the body pressure on the sacrum S can be reduced and the nodding movement of the sacrum S can be promoted.

[0043] As described above, the mat 1 of this embodiment can promote breathing when lying on one's back.

[0044] In the present invention, the pair of ilium support portions 11 need only support at least the portions of the pair of iliac bones LM of the person 50 lying on their back below the sacroiliac joints JI, and do not necessarily need to support the portions above the sacroiliac joints JI. The body pressure from the upper ilium corresponding portions 11b may be set to 0 (zero) or a value close to 0 (zero) and lower than the body pressure from the lower ilium support portions 11a. In this case, the upper ilium corresponding portions 11b may be set to a vertical height that is spaced apart from or lightly contacts the pair of ilium portions above the sacroiliac joints JI of the person 50 lying on their back, or by forming the portions of the mat 1 corresponding to the upper ilium corresponding portions 11b from an elastic material such as urethane, which has weaker elasticity (softer). [Explanation of symbols]

[0045] 1 Matt 4 Pelvic support 11 Iliac support 11a Lower ilium support 11b Upper iliac bone 12 Sacral support 13 Sit bone support 50 Person lying on his back PV Pelvis LM ilium S sacrum SN Sit bone

Claims

1. A mat that supports at least a region corresponding to the pelvis of a person lying on their back, A pair of iliac support parts that support regions corresponding to the pair of iliac bones of the person; a sacrum support portion that supports a portion corresponding to the human sacrum, the iliac support portion includes a lower iliac support portion that supports a portion of the ilium of the person that corresponds to a portion below the sacroiliac joint, and an upper iliac corresponding portion that corresponds to a portion of the ilium of the person that is above the sacroiliac joint, A mat characterized in that it is configured so that the body pressure from the sacral support portion and the body pressure from the upper ilium corresponding portion are lower than the body pressure from the lower ilium support portion.

2. The mat described in claim 1 is characterized in that it has a pair of ischial support portions that support areas corresponding to a pair of ischial bones of the person, and is configured so that body pressure from the sacral support portions is lower than body pressure from the ischial support portions.

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