Seat cushions, clothing and seats

Abstract

To provide a seat cushion that reduces the load on the body caused by a hunched shoulder posture. [Solution] The seat cushion includes an upper support portion that supports the upper part of the seated occupant's back where the right and left shoulder blades are located, and a lower support portion that supports the lower part of the seated occupant's back that is below the upper part. The upper support portion has a right shoulder blade support portion, a left shoulder blade support portion, and an upper spine support portion that supports the upper part of the spine. The lower support portion has a right lower support portion, a left lower support portion, and a lower spine support portion that supports the lower part of the spine. The upper spine support portion is formed thicker than the right and left shoulder blade support portions. The right lower support portion and left lower support portion are formed thicker than the lower spine support portion.

Description

[Technical field]

[0001] This specification discloses technology relating to seat cushions, clothing and seats. [Background technology]

[0002] For vehicle drivers, physical stress such as stiff shoulders, lower back pain, and back pain is a problem. In order to alleviate this problem, various seat cushions have been proposed (for example, see Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4374719 [Patent Document 2] Patent No. 5995455 Summary of the Invention [Problem to be solved by the invention]

[0004] Vehicle drivers tend to have rounded shoulders because they drive with their arms out in front of them. This rounded shoulder posture is thought to be one of the causes of stiff shoulders, lower back pain, and back pain. Therefore, there was room for improvement in the seat cushion from the perspective of reducing the load on the body caused by the rounded shoulder posture. [Means for solving the problem]

[0005] The technology disclosed in this specification can be realized in the following forms. One embodiment disclosed in the present specification is a seat cushion to be fitted between a vehicle seat and a seated person. The seat cushion includes an upper support part supporting an upper part of the back of the seated person where the right and left shoulder blades are located, and a lower support part supporting a lower part of the back of the seated person from a part adjacent to the lower part of the upper back to a lumbar region. The upper support part includes a right scapula support part supporting the right scapula of the upper back, a left scapula support part supporting the left scapula of the upper back, and an upper spine support part positioned between the right scapula support part and the left scapula support part and supporting an upper part of the spine between the right scapula and the left scapula. The lower support part has a right lower support part that supports the right side of the lower part of the spine continuing from the upper part of the spine in the lower back from below the right shoulder blade to the lumbar region, a left lower support part that supports the left side of the lower part of the spine in the lower back from below the left shoulder blade to the lumbar region, and a lower spine support part that is located between the right lower support part and the left lower support part and supports the lower part of the spine in the lower back. The upper spine support part is formed thicker than the right scapula support part and the left scapula support part. The right lower support part and the left lower support part are formed thicker than the lower spine support part. With this seat cushion, the upper spine support part pushes the upper part of the spine between the right and left shoulder blades of the seated person forward, thereby correcting rounded shoulders of the seated person, while allowing the lower part of the spine that protrudes backward due to the rounded shoulders to escape to the lower spine support part between the right and left lower support parts, thereby reducing pain in the lower spine caused by the lower part of the spine hitting the seat. As a result, this seat cushion can reduce the load on the body of the seated person caused by the rounded shoulder posture.

[0006] (1) One embodiment disclosed in this specification is a seat cushion to be fitted between a vehicle seat and a seated person. The seat cushion includes an upper support part supporting an upper part of the seated person's back where the right and left shoulder blades are located, and a lower support part supporting a lower part of the seated person's back below the upper part of the back. The upper support part includes a right shoulder blade support part supporting the right shoulder blade of the upper part of the back, a left shoulder blade support part supporting the left shoulder blade of the upper part of the back, and an upper spine support part positioned between the right shoulder blade support part and the left shoulder blade support part and supporting an upper part of the spine between the right shoulder blade and the left shoulder blade. The lower support part includes a right lower support part supporting the right side of a lower part of the spine continuing from the upper part of the spine in the lower part of the back, a left lower support part supporting the left side of the lower part of the spine in the lower part of the back, and a lower spine support part positioned between the right lower support part and the left lower support part and supporting the lower part of the spine in the lower part of the back. The upper spine support portion is thicker than the right and left shoulder blade support portions. The right and left lower support portions are thicker than the lower spine support portion. With this seat cushion, the upper spine support portion pushes the upper part of the spine between the right and left shoulder blades of the seated person forward, correcting the rounded shoulders of the seated person, while allowing the lower part of the spine that protrudes backward due to the rounded shoulders to escape to the lower spine support portion between the right and left lower support portions, thereby reducing pain in the lower spine caused by the lower spine hitting the seat. As a result, the seat cushion can reduce the load on the body of the seated person caused by the rounded shoulder posture.

[0007] (2) In the seat cushion of the above embodiment, the upper spine support portion may be configured to have an adjustable thickness. With this seat cushion, the degree to which the upper spine is pushed forward by the upper spine support portion can be adjusted according to the body shape of the seat sitter.

[0008] (3) In the seat cushion of the above embodiment, the right lower support portion and the left lower support portion may be configured to have adjustable thicknesses. With this seat cushion, the degree to which the right and left lower support portions push the lower back forward can be adjusted according to the body shape of the seated occupant.

[0009] The technology disclosed in this specification is not limited to seat cushions, but can be realized in the form of, for example, clothing, seats, etc. Each of the clothing and seats in such forms includes an upper support portion and a lower support portion, similar to the above-mentioned seat cushion. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is an explanatory diagram showing the seat cushion as viewed from the front side. [Diagram 2] FIG. 4 is an explanatory diagram showing the seat cushion as viewed from the back side. [Diagram 3] 3 is a cross-sectional view of the seat cushion taken along the cross section F3-F3 in FIG. 2. [Figure 4] 4 is a cross-sectional view of the seat cushion taken along the cross section F4-F4 in FIG. 2. [Diagram 5] 3 is a cross-sectional view of the seat cushion taken along the cross section F5-F5 in FIG. 2. [Figure 6] FIG. 11 is a cross-sectional view showing an upper spine support part in a modified example. [Figure 7] 13 is a cross-sectional view showing a lower right support portion and a lower left support portion in a modified example. FIG. [Figure 8] FIG. 11 is an explanatory diagram showing a garment according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Fig. 1 is an explanatory diagram showing the seat cushion 100 as viewed from the front side. Fig. 2 is an explanatory diagram showing the seat cushion 100 as viewed from the back side. Fig. 3 is a cross-sectional view of the seat cushion 100 as viewed from the cross section F3-F3 in Fig. 2. Fig. 4 is a cross-sectional view of the seat cushion 100 as viewed from the cross section F4-F4 in Fig. 2. Fig. 5 is a cross-sectional view of the seat cushion 100 as viewed from the cross section F5-F5 in Fig. 2.

[0012] The seat cushion 100 is a device that is attached between a seat 800 of a vehicle (not shown) and a seated person BD. The seat cushion 100 is mainly made of a synthetic resin foam. The seat cushion 100 includes an upper support portion 110, a lower support portion 120, and a lumbar support portion 130.

[0013] The upper support portion 110 of the seat cushion 100 is a portion that supports an upper back portion 910 of the back 900 of the seated person BD, where a right shoulder blade 914 and a left shoulder blade 916 are located. The upper support portion 110 has an upper spine support portion 112, a right shoulder blade support portion 114, and a left shoulder blade support portion 116.

[0014] The right scapula support part 114 of the upper support part 110 is a part that supports the right scapula 914 of the upper back 910. The left scapula support part 116 of the upper support part 110 is a part that supports the left scapula 916 of the upper back 910.

[0015] The upper spine support part 112 of the upper support part 110 is a part located between the right scapula support part 114 and the left scapula support part 116. The upper spine support part 112 supports the upper part of the spine 912 between the right scapula 914 and the left scapula 916. As shown in FIG. 3, the upper spine support part 112 is formed to be thicker than the right scapula support part 114 and the left scapula support part 116.

[0016] The lower support portion 120 of the seat cushion 100 is a portion that supports a lower back portion 920 of the back 900 of the seated person BD, which is below an upper back portion 910. The lower support portion 120 has a lower spine support portion 122, a right lower support portion 124, and a left lower support portion 126.

[0017] The lower spine support portion 122 of the lower support portion 120 is a portion located between the right lower support portion 124 and the left lower support portion 126. The lower spine support portion 122 supports a lower spine 922 continuing from the upper spine 912 in a lower back portion 920.

[0018] The right lower support part 124 of the lower support part 120 supports a right lower back part 924 located to the right of the lower spine part 922 in the lower back part 920. The left lower support part 126 of the lower support part 120 supports a left lower back part 926 located to the left of the lower spine part 922 in the lower back part 920. The right lower support part 124 and the left lower support part 126 are formed to be thicker than the lower spine part support part 122, as shown in FIG.

[0019] In this embodiment, as shown in FIG. 4, the lower support portion 120 of the seat cushion 100 has a right thin portion 125 and a left thin portion 127. The right thin portion 125 is a portion located to the right of the right lower support portion 124. The left thin portion 127 is a portion located to the left of the left lower support portion 126. The right thin portion 125 and the left thin portion 127 have a thickness similar to that of the lower spine support portion 122. In another embodiment, the lower support portion 120 of the seat cushion 100 may not have the right thin portion 125 and the left thin portion 127. In this case, the right lower support portion 124 and the left lower support portion 126 may be extended to each end of the lower support portion 120.

[0020] The lumbar support portion 130 of the seat cushion 100 is a portion that supports the lumbar region 930, which includes the right ilium 934 and the left ilium 936 of the lower back 920. As shown in Fig. 5, the right lower support portion 124 and the left lower support portion 126 are provided overlapping on the lumbar support portion 130. In other embodiments, the seat cushion 100 may not include the lumbar support portion 130. The lumbar support portion 130 may be configured to be detachable.

[0021] The seat cushion 100 further includes an attachment string 182 and a fixing band 184. The attachment string 182 is a pair of strings provided on the upper part of the seat cushion 100. By fastening the attachment string 182 between a headrest 810 and a seat back 820 of the seat 800, the upper part of the seat cushion 100 can be fixed to the seat 800. The fixing band 184 is a band-shaped portion extending from the lower part of the seat cushion 100. By sandwiching the fixing band 184 between the seat back 820 and the seat surface 830 of the seat 800, the lower part of the seat cushion 100 can be fixed to the seat 800.

[0022] According to the seat cushion 100 described above, the upper spine support portion 112 pushes forward the upper spine 912 between the right shoulder blade 914 and the left shoulder blade 916 of the seated person BD, thereby correcting the rounded shoulders of the seated person BD, while allowing the lower spine 922, which has become hunched and protrudes backward due to the rounded shoulders, to escape to the lower spine support portion 122 between the right lower support portion 124 and the left lower support portion 126, thereby reducing pain in the lower spine 922 caused by the lower spine 922 hitting the seat 800. As a result, the seat cushion 100 can reduce the load on the body of the seated person BD caused by the rounded shoulder posture.

[0023] Fig. 6 is a cross-sectional view showing the upper spine support part 112 in a modified example. The cross-sectional view in Fig. 6 corresponds to the cross-section F3-F3 in Fig. 2. The upper spine support part 112 in the modified example is configured so that the thickness can be adjusted by inserting and removing a plurality of adjustment members 112p. According to the seat cushion 100 in the modified example in Fig. 6, the degree to which the upper spine support part 112 pushes the upper spine 912 forward can be adjusted according to the body shape of the seated person BD.

[0024] FIG. 7 is a cross-sectional view showing the right lower support part 124 and the left lower support part 126 in the modified example. The cross-sectional view in FIG. 7 corresponds to the cross-section F4-F4 in FIG. 2. The right lower support part 124 in the modified example is configured to be adjustable in thickness by inserting and removing a plurality of adjustment members 124p. The left lower support part 126 in the modified example is configured to be adjustable in thickness by inserting and removing a plurality of adjustment members 126p. According to the seat cushion 100 in the modified example in FIG. 7, the degree to which the right lower back part 924 and the left lower back part 926 of the lower back part 920 are pushed forward by the right lower support part 124 and the left lower back part 926 can be adjusted according to the body shape of the seated person BD.

[0025] The technology disclosed in this specification is not limited to the above-mentioned embodiment, example, and modification. The technology disclosed in this specification can be realized in various configurations without departing from the spirit of the invention. Among the technical features in the above-mentioned embodiment, example, and modification, those corresponding to the technical features in each form described in the Summary of the Invention column can be replaced and combined to solve some or all of the above-mentioned problems or to achieve some or all of the above-mentioned effects. In addition, technical features that are not described as essential in this specification can be deleted as necessary.

[0026] For example, the seat cushion 100 of the above-described embodiment is configured to be detachable from the seat 800. In other embodiments, the seat 800 may be integrally provided with the upper support portion 110 and the lower support portion 120 having the same configuration as the seat cushion 100.

[0027] 8 is an explanatory diagram showing a garment 500 in another embodiment. The garment 500 is worn by a seated person BD sitting in a vehicle seat 800. The garment 500 includes a back-side fabric 502, an upper support part 510, and a lower support part 520. The back-side fabric 502 is a fabric that forms the back side of the garment 500.

[0028] The upper support part 510 has an upper spine support part 112, a right scapula support part 114, and a left scapula support part 116, similar to the seat cushion 100. The upper support part 510 is formed by joining the resin foam constituting the upper spine support part 112 to the inside of the back side fabric 502. In other embodiments, the upper support part 510 may be formed by joining the resin foam constituting the upper spine support part 112 to the outside of the back side fabric 502.

[0029] The lower support part 520 has a lower spine support part 122, a lower right support part 124, and a lower left support part 126, similar to the seat cushion 100. The lower support part 520 is formed by joining the resin foam constituting the lower right support part 124 and the lower left support part 126 to the inside of the back side fabric 502. In other embodiments, the lower support part 520 may be formed by joining the resin foam constituting the lower right support part 124 and the lower left support part 126 to the outside of the back side fabric 502.

[0030] 8, when a seated person BD wears the garment 500 and sits on a seat 800, the upper spine support portion 112 pushes forward the upper spine 912 between the right shoulder blade 914 and the left shoulder blade 916 of the seated person BD, similarly to the seat cushion 100, thereby correcting the rounded shoulders of the seated person BD, while allowing the lower spine 922, which has become hunched and protrudes backward due to the rounded shoulders, to escape to the lower spine support portion 122 between the right lower support portion 124 and the left lower support portion 126, thereby reducing pain in the lower spine 922 caused by the lower spine 922 hitting the seat 800. As a result, the garment 500 can reduce the load on the body of the seated person BD caused by the rounded shoulder posture. [Explanation of symbols]

[0031] 100…Seat cushion 110…Upper support part 112…Upper spine support 112p…Adjustment member 114…Right shoulder blade support 116…Left shoulder blade support 120…Lower support section 122…Lower spine support 124…Lower right support part 124p…Adjustment parts 125...Right side thin section 126…Lower left support part 126p…Adjustment parts 127…Left side thin section 130…Lumbar support section 182…Attachment cord 184…Fixed belt 500...Clothing 502...Back fabric 510…Upper support section 520…Lower support section 800…seats 810…Headrest 820…Seat back 830…Seat 900…Back 910…Upper back 912…Upper spine 914…Right shoulder blade 916…Left shoulder blade 920…Lower back 922…Lower spine 924…Right side lower back 926…Left lower back 930...lower back 934…Right ilium 936…Left ilium BD…Seated person

Claims

1. A seat cushion that is installed between a vehicle seat and a seated person, An upper support part that supports an upper part of the back of the seated person where the right shoulder blade and the left shoulder blade are located; a lower support part that supports a lower part of the back of the seated person from below the upper back to a lumbar region; Equipped with The upper support portion is A right shoulder blade support part that supports the right shoulder blade of the upper back; A left shoulder blade support part that supports the left shoulder blade of the upper back; an upper spine support part that is located between the right scapula support part and the left scapula support part and supports an upper part of the spine between the right scapula and the left scapula; having The lower support portion is A right lower support part that supports the right side of the lower part of the spine continuing from the upper part of the spine from below the right shoulder blade to the waist in the lower back part; A left lower support part that supports the left side of the lower part of the spine in the lower back from below the left shoulder blade to the lower back; a lower spine support part located between the right lower support part and the left lower support part and supporting the lower spine in the lower back; having The upper spine support portion is formed to be thicker than the right scapula support portion and the left scapula support portion, The seat cushion, wherein the right lower support portion and the left lower support portion are formed to be thicker than the spine lower support portion.

2. The seat cushion according to claim 1 , wherein the upper spine support portion is configured so that a thickness thereof is adjustable.

3. 3. The seat cushion according to claim 1, wherein the right lower support portion and the left lower support portion are configured so that their thicknesses are adjustable.

4. A garment worn by a person sitting in a seat of a vehicle, An upper support part that supports an upper part of the back of the seated person where the right shoulder blade and the left shoulder blade are located; a lower support part that supports a lower part of the back of the seated person from below the upper back to a lumbar region; Equipped with The upper support portion is A right shoulder blade support part that supports the right shoulder blade of the upper back; A left shoulder blade support part that supports the left shoulder blade of the upper back; an upper spine support part that is located between the right scapula support part and the left scapula support part and supports an upper part of the spine between the right scapula and the left scapula; having The lower support portion is A right lower support part that supports the right side of the lower part of the spine continuing from the upper part of the spine from below the right shoulder blade to the waist in the lower back part; A left lower support part that supports the left side of the lower part of the spine in the lower back from below the left shoulder blade to the lower back; a lower spine support part located between the right lower support part and the left lower support part and supporting the lower spine in the lower back; having The upper spine support portion is formed thicker than the right scapula support portion and the left scapula support portion, The garment, wherein the right lower support portion and the left lower support portion are formed to be thicker than the spine lower support portion.

5. A seat of a vehicle, An upper support part that supports the upper part of the back of the seated person where the right and left shoulder blades are located; a lower support part that supports a lower part of the back of the seated person from below the upper back to a lumbar region; Equipped with The upper support portion is A right shoulder blade support part that supports the right shoulder blade of the upper back; A left shoulder blade support part that supports the left shoulder blade of the upper back; an upper spine support part that is located between the right scapula support part and the left scapula support part and supports an upper part of the spine between the right scapula and the left scapula; having The lower support portion is A right lower support part that supports the right side of the lower part of the spine continuing from the upper part of the spine from below the right shoulder blade to the waist in the lower back part; A left lower support part that supports the left side of the lower part of the spine in the lower back from below the left shoulder blade to the lower back; a lower spine support part located between the right lower support part and the left lower support part and supporting the lower spine in the lower back; having The upper spine support portion is formed thicker than the right scapula support portion and the left scapula support portion, A seat, wherein the right lower support portion and the left lower support portion are formed to be thicker than the spine lower support portion.

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