Method for producing pillow with sheet

A pillow with a sheet is designed to adjust feel by differing compression hardness and resilience between the pillow and sheet, ensuring stable head support and comfort.

JP2026031786APending Publication Date: 2026-02-24INOAC CORP
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Patent Information

Application Number
JP2025247383
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-08-24
Filing Date
2025-12-12
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing pillows made of a single homogeneous material struggle to adjust the feel based on user preference without compromising the manipulative effect of maintaining proper head support.

Method used

A pillow with a sheet is manufactured by selecting materials for the pillow and sheet such that there is a difference in compression hardness and rebound resilience of at least 5% and 5N, respectively, allowing for adjustable feel and support.

Benefits of technology

The pillow with a sheet allows easy adjustment of feel without compromising the manipulative effect, providing stable head support and comfort through varying tactile sensations.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a pillow with a sheet and the sheet capable of easily adjusting the touch of the pillow without damaging a body conditioning effect.SOLUTION: A pillow with a sheet includes a pillow and a foamed resin sheet stacked on the pillow. The sheet is overlaid on a surface of the pillow on which the head is placed, and is made of a foamed resin.SELECTED DRAWING: Figure 1
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Description

[Technical Field]

[0001] The present disclosure relates to a method for manufacturing a pillow with a sheet. [Background technology]

[0002] BACKGROUND ART Pillows made of highly resilient materials are known (see, for example, Patent Document 1).

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-110062 Summary of the Invention [Problem to be solved by the invention]

[0004] The pillow in Patent Document 1 discloses a structure that provides a manipulative effect to the user. This pillow is made of a highly resilient material, which prevents the back of the head from sinking unnecessarily when in use. This allows the pillow to adjust the user's posture when in use, providing a manipulative effect.

[0005] On the other hand, the pillow in Patent Document 1 is made of a single homogeneous material, which means that if the user feels that the pillow is hard, it may be difficult to adjust the feel.

[0006] The object of the present disclosure is to provide a pillow with a sheet and a sheet that allow the feel of the pillow to be easily adjusted without compromising the manipulative effect. [Means for solving the problem]

[0007] A method for manufacturing a pillow with a sheet according to one embodiment of the present disclosure is a method for manufacturing a pillow with a sheet comprising a pillow and a resin sheet laid on the pillow, wherein the pillow and / or the sheet are selected after confirming that the difference in 40% compression hardness between the pillow and the sheet is 5N or more, and / or the pillow and / or the sheet are selected after confirming that the difference in rebound resilience between the pillow and the sheet is 5% or more. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a pillow with a sheet and a sheet that allow the feel of the pillow to be easily adjusted without compromising the manipulative effect. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a pillow with a sheet according to an embodiment of the present disclosure. [Figure 2] 1 is a schematic diagram showing a state in which a pillow with a sheet according to an embodiment of the present disclosure is used. [Figure 3] 1A and 1B are a top view, a cross-sectional view, and a side view of a seat according to an embodiment of the present disclosure. [Figure 4] FIG. 10 is a top view showing a seat according to another embodiment of the present disclosure. [Figure 5] FIG. 10 is a top view showing a seat according to another embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. In this embodiment, a pillow with a sheet 1 that supports the back of the head of a user M will be described as an example.

[0011] The sheet-attached pillow 1 of this embodiment is placed on a mattress or a futon. As shown in FIG. 1, the sheet-attached pillow 1 is formed with dimensions in the width direction W, the front-to-back direction L, and the height direction H. The sheet-attached pillow 1 of this embodiment is placed so that the width direction W roughly coincides with the width direction of the mattress or futon (not shown). In addition, the front-to-back direction L roughly coincides with the length direction of the mattress or futon. Note that, as shown in FIG. 2, the front-to-back direction L is described as the side that supports the shoulders of the user M in use being the front, and the side that supports the area around the top of the head being the rear.

[0012] As shown in FIGS. 1 and 2, the sheet-attached pillow 1 includes a pillow body (an example of a pillow) 2, a sheet 4, and a cover 6.

[0013] A part of the body of the user M is placed on the pillow body 2 via a sheet 4 and a part of the cover 6, which will be described later. The pillow body 2 of this embodiment supports mainly the back of the head of the user M when in use. This allows the pillow body 2 to help the user M to assume a stable posture.

[0014] The pillow body 2 is roughly the same size as the outer shape of the sheet-attached pillow 1. The pillow body 2 is formed so that the size in the width direction W is approximately 500 mm to 1400 mm. The size in the width direction W of the pillow body 2 may also be approximately 200 mm to 1800 mm. The pillow body 2 of this embodiment is formed so that it roughly matches the size in the width direction of the mattress or futon on which the sheet-attached pillow 1 is placed. This allows the head of the user M to be stably supported even if the user M moves around by turning over in bed, etc.

[0015] The pillow body 2 is formed so that its size in the front-to-back direction L roughly matches the length from the head to the shoulders of the user M. Furthermore, the pillow body 2 is formed so that its size in the front-to-back direction L is larger than that of the sheet 4, which will be described later. That is, the pillow body 2 is formed so that its size in the front-to-back direction L is approximately 350 mm to 800 mm. Furthermore, the size of the pillow body 2 in the front-to-back direction L may be approximately 100 mm to 900 mm.

[0016] The thickness of the pillow body 2 in the height direction H is set to a height that can support the curvature of the back of the head of the user M. In this embodiment, the thickness of the pillow body 2 in the height direction H is set to about 30 mm to 200 mm. Alternatively, the thickness of the pillow body 2 in the height direction H may be about 10 mm to 300 mm.

[0017] As described above, in this embodiment, the pillow body 2 has a generally rectangular parallelepiped shape with a length in the width direction W longer than in the front-rear direction L and a thickness in the height direction H. The pillow body 2 becomes thinner from the rear side to the front side in the front-rear direction L. This allows the pillow body 2 to stably support the head of the user M along the curves of the user M's body when in use. However, the pillow body 2 is not limited to this rectangular parallelepiped shape and can be modified into various shapes. For example, the pillow body 2 may become thinner from the front side to the rear side in the front-rear direction L, or may be flat all over.

[0018] The pillow body 2 is formed from a foamed resin material such as polyurethane foam, or a bag filled with feathers, buckwheat husks, resin pipes, beads, etc. The pillow body 2 of this embodiment is formed from soft polyurethane foam or semi-rigid polyurethane foam with an open-cell structure.

[0019] However, the pillow body 2 may be made of materials other than polyurethane foam, which is generally used for pillows, such as feathers, cotton, or resin. The pillow body 2 may also be made of recycled materials such as polyurethane foam pulverizer compressed with a binder (adhesive). In any case, the pillow body 2 may be made of any material that can be used for a pillow. The hardness and resilience of the material are selected appropriately depending on its relationship with the sheet 4, which will be described later.

[0020] The pillow body 2 has a surface 21, which is the surface on which the head of the user M is placed. The surface 21 is the surface on which the head of the user M is placed when the sheet-equipped pillow 1 is in use. In other words, it goes without saying that the surface 21 can extend over the entire surface of the pillow body 2 extending in the width direction W and the front-rear direction L, not just the area where the head of the user M is in direct contact.

[0021] In use, part of the body of the user M, from the back of the head to the neck and shoulders, is placed on the surface 21 via the seat 4 and part of the cover 6. The surface 21 of this embodiment slopes downward from near the center in the front-rear direction L to the front end.

[0022] The sheet 4 is used by being placed on the surface 21 of the pillow body 2. The sheet 4 has a roughly rectangular shape extending in the width direction W and the front-to-back direction L. However, the sheet 4 is not limited to such a rectangular shape and can be changed into various shapes. For example, the sheet 4 may be an ellipse or a circle that covers part of the surface 21 of the pillow body 2. Furthermore, the thickness of the sheet 4 may change from the front side to the rear side in the front-to-back direction L, or it may be flat over the entire surface.

[0023] The sheet 4 is arranged so as to cover a part or the whole of the surface 21 of the pillow body 2. In this embodiment, the sheet 4 is arranged so as to cover the vicinity of the center of the pillow body 2 in the front-rear direction L. In addition, the sheet 4 is arranged so as to cover the entire pillow body 2 in the width direction W.

[0024] The size of the sheet 4 in the width direction W is the same as or shorter than the sheet-attached pillow 1 and the pillow body 2. The sheet 4 is formed so that the size in the width direction W is approximately 500 mm to 1400 mm. The size in the width direction W of the sheet 4 may also be approximately 200 mm to 1600 mm. Furthermore, the size in the width direction W of the sheet 4 may extend over the entire length of the pillow body 2 in the width direction W.

[0025] The sheet 4 of this embodiment has a size in the width direction W that is approximately the same as that of the sheet-attached pillow 1 and the pillow body 2. As a result, when in use, the sheet 4 is stably positioned between the head of the user M and the pillow body 2 regardless of the position of the user M.

[0026] Furthermore, the size of the sheet 4 in the front-to-back direction L is smaller than that of the pillow with sheet 1 and the pillow body 2. The sheet 4 is formed so that the size in the front-to-back direction L is approximately 150 mm to 250 mm. Furthermore, the size in the front-to-back direction L of the sheet 4 may be approximately 30 mm to 500 mm. Furthermore, the size in the front-to-back direction L of the sheet 4 may extend over the entire length of the pillow body 2 in the front-to-back direction L.

[0027] The sheet 4 is formed so that its thickness in the height direction H is 25 mm or less. The thickness of the sheet 4 in the height direction H may be approximately 2 mm to 15 mm. Alternatively, the thickness of the sheet 4 in the height direction H may be approximately 0.1 mm to 25 mm.

[0028] It should be noted that the thicker the sheet 4, the more the tactile sensation that the sheet-attached pillow 1 gives to the user M in use will depend on the material of the sheet 4. Therefore, the user M can greatly adjust the tactile sensation of the pillow body 2 by using a thick sheet 4 or multiple sheets 4. On the other hand, the thicker the sheet 4, the more easily the user M will sense any unevenness caused by the thickness of the sheet 4. For this reason, in this embodiment, the thickness of the sheet 4 in the height direction H is formed to be in the range of approximately 3 mm to 10 mm.

[0029] The sheet 4 is formed of a resin material such as polyurethane, acrylic, melamine, or an olefin-based resin such as polyethylene. The sheet 4 of this embodiment is formed of a foamable resin material, such as a flexible polyurethane foam or semi-rigid polyurethane foam having an open-cell structure.

[0030] However, the sheet 4 may also be an elastic material such as rubber or elastomer, a gel-like resin material, or a gel-like resin material packaged in a bag. The sheet 4 may be a foamed or non-foamed material, but a foamed material is more preferable. Furthermore, the sheet 4 may be made of recycled materials such as polyurethane foam pulverizers compressed with a binder (adhesive). The hardness and resilience of the sheet 4 are appropriately selected depending on its relationship with the pillow body 2, which will be described later.

[0031] The sheet 4 has a front surface 41, a back surface 42, and a plurality of through holes 43. The front surface 41 is the surface that the head of the user M comes into contact with during use. The back surface 42 is the surface opposite to the front surface 41, and is arranged on the front surface 21 side of the pillow body 2.

[0032] Fig. 3(a) is a top view showing the sheet 4 of this embodiment. Fig. 3(b) and Fig. 3(c) are a cross-sectional view and a side view, respectively, showing the sheet 4 of this embodiment. Note that the top view, bottom view, right side view, and left side view of the sheet 4 of this embodiment are each expressed in the same way.

[0033] As shown in Figures 3(a) to (c), the multiple through-holes 43 penetrate from the front surface 41 to the back surface 42. As a result, the through-holes 43 allow ventilation between the front surface 41 and the back surface 42. Therefore, the through-holes 43 can prevent air from stagnating between the sheet 4 and the pillow body 2, or between the sheet 4 and the head of the user M. As a result, the sheet 4 can prevent the user M from feeling uncomfortable, such as stuffy, between the sheet 4 and the pillow body 2 when in use.

[0034] The through hole 43 has a linear shape extending along the front-rear direction L. The size of the through hole 43 in the width direction W may be approximately 5 mm to 20 mm. The size of the through hole 43 in the width direction W may also be approximately 0.5 mm to 50 mm. In this embodiment, the size of the through hole 43 in the width direction W is approximately 10 mm.

[0035] Furthermore, the size of the through hole 43 in the front-to-rear direction L may be smaller than that of the seat 4. The size of the through hole 43 in the front-to-rear direction L may be approximately 50 mm to 200 mm. The size of the through hole 43 in the front-to-rear direction L may be approximately 0.5 mm to 450 mm. In this embodiment, the size of the through hole 43 in the front-to-rear direction L is approximately 130 mm.

[0036] The multiple through holes 43 are arranged evenly on the left and right sides, sandwiching the center in the width direction W. In this embodiment, a total of eight through holes 43 are provided, four on the right and four on the left side as you face the sheet 4. The distance between two through holes 43 arranged across the center is larger than the distance between other adjacent through holes 43. The distance, number and arrangement of the through holes 43 can be changed to various values ​​and arrangements according to the dimensions of the pillow body 2 and the sheet 4.

[0037] The cover 6 is a knitted bag that covers the pillow body 2 and the sheet 4. The cover 6 has a main body cover 61 and a sheet storage section 62. The main body cover 61 stores the pillow body 2. The sheet storage section 62 is sewn integrally to the main body cover 61 and stores the sheet 4. This allows the cover 6 to prevent the pillow body 2 and the sheet 4 from shifting positions when the sheet-equipped pillow 1 is in use. The cover 6 in this embodiment is made of knitted material, but is not limited to this and the cover 6 can be made of cotton, rayon, and other fiber materials.

[0038] Next, the materials of the pillow body 2 and the sheet 4 will be described.

[0039] The pillow body 2 and the sheet 4 are formed so that the difference in 40% compression hardness, which is the stress when compressed to a constant 40% compression according to JIS K 6400-2;2012, is 5N or more, preferably 15N or more, more preferably 30N or more, even more preferably 60N or more, and particularly preferably 90N or more. Furthermore, the pillow body 2 and the sheet 4 are formed so that the difference in resilience according to JIS K 6400-3;2012 is 5% or more, preferably 10% or more, more preferably 20% or more, even more preferably 30% or more, and particularly preferably 40% or more. The breathability of the pillow body 2 may be any value as long as it is a generally acceptable value.

[0040] Hereafter, compression hardness and rebound resilience values ​​will be listed based on JIS K 6400-2; 2012 and JIS K 6400-3; 2012. These values ​​will be converted appropriately when applying the international standard ISO 8307 or other standards.

[0041] First, we will explain the case where the compression hardness of the sheet 4 is harder than the compression hardness of the pillow body 2. In such a case, the pillow body 2 is formed so that the 40% compression hardness is 10N to 75N. However, the 40% compression hardness of the pillow body 2 is not limited to this range, and may be within the range of 7N to 110N, or even within the range of 5N to 140N.

[0042] Furthermore, the sheet 4 is formed so that its 40% compression hardness is 100N to 200N. The 40% compression hardness of the sheet 4 may also be within the range of 75N to 300N, or even within the range of 30N to 500N. In any case, the compression hardness of the pillow body 2 and the sheet 4 may be any value that can be selected within a range that satisfies the difference in compression hardness between the pillow body 2 and the sheet 4 described above.

[0043] Furthermore, the resilience of the pillow body 2 and the sheet 4 may be the same value or different values. That is, the resilience of the pillow body 2 may be higher than that of the sheet 4, or the resilience of the sheet 4 may be higher than that of the pillow body 2. If there is a difference in resilience between the pillow body 2 and the sheet 4, it is preferable to select within a range that satisfies the difference in resilience between the pillow body 2 and the sheet 4 described above.

[0044] In this way, when creating a difference between the resilience of the pillow body 2 and the resilience of the sheet 4, the resilience of the pillow body 2 should be 1 to 15%, more preferably 4 to 15%, and even more preferably 8 to 15%. In this case, the resilience of the sheet 4 should be 16 to 96%, more preferably 20 to 70%, and even more preferably 30 to 65%, and a value that satisfies the difference in resilience between the pillow body 2 and the sheet 4 should be selected within this range.

[0045] With this pillow body 2 and sheet 4, the user M can use a combination of a soft pillow body 2 and a hard sheet 4. This allows the user M to have body pressure distributed by the pillow body 2, and also gives the user M the feeling that the head is supported by the sheet 4 in the area around the head that is in contact with the sheet 4. As a result, the feel of the sheet-attached pillow 1 can be adjusted without compromising the manipulative effect of the pillow body 2.

[0046] Next, we will explain the case where the compression hardness of the pillow body 2 is harder than the compression hardness of the sheet 4. In such a case, the pillow body 2 may be made of polyurethane foam formed so that the 40% compression hardness is 90N to 200N. Furthermore, the 40% compression hardness of the pillow body 2 may be within the range of 50N to 300N, or even within the range of 30N to 500N.

[0047] The sheet 4 may also be made of polyurethane foam so that its 40% compression hardness is 10N to 75N. The 40% compression hardness of the sheet 4 may be in the range of 7N to 110N, or even in the range of 5N to 140N.

[0048] Even when the compression hardness of the pillow body 2 is harder than that of the sheet 4, the compression hardness of the pillow body 2 and the sheet 4 may be a value selectable within a range that satisfies the difference in compression hardness between the pillow body 2 and the sheet 4, just as when the compression hardness of the sheet 4 is harder than that of the pillow body 2. Furthermore, the resilience of the pillow body 2 and the sheet 4 may be the same value or different values. That is, the resilience of the pillow body 2 may be higher than that of the sheet 4, or the resilience of the sheet 4 may be higher than that of the pillow body 2.

[0049] This allows the user M to use the hard pillow body 2 in combination with the soft sheet 4. This allows the user M to feel that the pillow body 2 is firmly supporting the head, and also allows the sheet 4 to soften the sensation on the head in the area where the head comes into contact with the sheet 4. As a result, the feel of the sheet-equipped pillow 1 can be adjusted without compromising the manipulative effect of the pillow body 2.

[0050] Furthermore, the combination of the pillow body 2 and the sheet 4 may be such that a difference in resilience is provided between the pillow body 2 and the sheet 4, regardless of the compression hardness of the pillow body 2 and the sheet 4. In other words, the resilience of the sheet 4 may be higher than that of the pillow body 2 by the difference in resilience between the pillow body 2 and the sheet 4. Conversely, the resilience of the pillow body 2 may be higher than that of the sheet 4 by the difference in resilience between the pillow body 2 and the sheet 4.

[0051] As described above, according to the present disclosure, it is possible to provide a pillow with a sheet and a sheet that can adjust the feel without compromising the manipulative effect of the pillow body.

[0052] <Other embodiments> Although the embodiments of the present disclosure have been described above, the present disclosure is not limited to the above embodiments, and various modifications are possible within the scope of the gist of the invention. In particular, the multiple modifications described in this specification can be arbitrarily combined as necessary.

[0053] Furthermore, in the above embodiment, an example has been described in which a plurality of linear through-holes 43 are provided in the sheet 4, but the present disclosure is not limited to this.

[0054] That is, as shown in FIG. 4, the sheet 40 of the sheet-attached pillow in another embodiment may be formed without having any through-holes.

[0055] 5, the through-holes 431 of the sheet 401 of the sheet-attached pillow in another embodiment may be rod-shaped extending in the width direction W. The multiple through-holes 431 may be evenly arranged on the sheet 401 at predetermined intervals.

[0056] Furthermore, the through holes (not shown) may have an arc shape that bulges outward in the width direction W. For example, a through hole located on the right side as one faces the sheet 4 may be formed in an arc shape that bulges to the right. Conversely, a through hole located on the left side as one faces the sheet 4 may have an arc shape that bulges to the left. Note that the shape of the through holes can be a variety of shapes, such as a circle, an ellipse, a polygon, a star, etc., in addition to an arc shape.

[0057] Furthermore, in the above embodiment, an example has been described in which one sheet 4 is stacked on one pillow body 2, but the present disclosure is not limited to this. That is, the number of sheets 4 can be selected appropriately according to the preference of the user M, and for example, the sheet-attached pillow 1 may be used by stacking two or more sheets 4 on the pillow body 2. [Explanation of symbols]

[0058] 1: Pillow with sheet 2: Pillow body (pillow) 21 :Surface 4(40,401): Sheet 43(431):Through hole

Claims

[Claim 1] A method for manufacturing a pillow with a sheet, comprising: a pillow; and a resin sheet placed on the pillow, Select the pillow and / or the sheet by checking that the difference in 40% compression hardness between the pillow and the sheet is 5N or more; and / or Select the pillow and / or the sheet after confirming that the difference in resilience between the pillow and the sheet is 5% or more. Manufacturing method of a pillow with a sheet.