JP2024010303A - pillow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pillow facilitating adjustment of a partial height and hardness, finely corresponding to the body type and preference of a user, and capable of obtaining an optimum feeling of sleeping.

SOLUTION: A pillow 1 having a central part 2 and an outer peripheral part 3 surrounding the central part in a transverse direction comprises: a plurality of partition members 4 for partitioning an inside of a cover 10 into a plurality of internal spaces in the outer peripheral part 3, and extending in a thickness direction; a plurality of sheets of three-dimensional net-like structure bodies stored in the plurality of internal spaces so as to be superposed on each other; an opening disposed in the cover 10 so as to make the three-dimensional net-like structure bodies attachable/detachable to/from the cover 10; and an opening/closing member for opening/closing the opening. At least one of the plurality of sheets of three-dimensional net-like structure bodies stored in the same internal space has hardness different from hardness of the other three-dimensional net-like structure body.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a pillow, and particularly to a pillow whose height and hardness can be partially adjusted according to the user's body shape and preferences.

In recent years, from the perspective of maintaining and promoting health, there has been increasing interest in selecting pillows that suit an individual's body shape and preferences. Patent Document 1 proposes a pillow that is compatible with supine and sideways postures and can provide sleeping comfort that corresponds to individual differences in users. This pillow has an occipital resting part that is formed in a concave shape to follow the shape of the occiput, and a cervical vertebra resting part that is placed in front of the occipital resting part and is formed higher than the occipital resting part. an upper core material having a temporal resting part arranged on both sides of the occipital resting part, formed higher than the occipital resting part, and on which the temporal region is placed; The height can be easily changed depending on the thickness of the lower layer core material and the presence or absence of the lower layer core material.

Patent Document 2 discloses a first pillow having an outer bag made of cotton fabric and a polyester inner material, a second pillow having an outer bag made of linen fabric and a polyester inner material, and an outer bag made of cotton fabric and a feather inner material. A pillow set including a third pillow having a material is proposed, and it is described that the height and firmness can be adjusted.

Patent Document 3 discloses a pillow in which contents are stored in an internal space inside a side fabric, and includes a plurality of partitions that partition the internal space, and the plurality of partitions extend from one short side to the other. A pillow is described that includes a first partition extending to a short side and a pair of second partitions extending from the first partition to one long side. With each of the first, second and third fasteners provided in the partitioned area open, the cylindrical first, second and third fabric parts are pulled from inside the side fabric. The amount of the contents can be adjusted by taking out and taking out the granular contents through the first cloth part, the second cloth part, or the third cloth part.

Japanese Patent Application Publication No. 2015-150373 Utility model registration No. 3236777 Japanese Patent Application Publication No. 2020-115996

However, with the pillow of Patent Document 1, although the height of the entire pillow can be changed, partial height adjustment is not possible, and the difference in height between regions cannot be changed. Further, in the pillow of Patent Document 1, the upper layer core material and the lower layer core material are integrally welded, and the height cannot be adjusted after purchase according to the user, the user's preference, or physical condition. Furthermore, it was not possible to partially adjust the hardness. Further, the pillow disclosed in Patent Document 2 also allows adjustment of the height and hardness of the entire pillow, but partial adjustment is not possible.

Therefore, the pillows of Patent Documents 1 and 2 are insufficiently compatible with the head shape and physique of users facing upward or sideways. Also, when you sleep on your back, the height matches, but when you sleep on your side, the height doesn't match, and conversely, when you sleep on your side, the height matches, but when you sleep on your back, the pillow doesn't match. There were cases where they did not match.

In the pillow of Patent Document 3, the height can be partially adjusted by adjusting the amount of granular filling, but in order to adjust the height, the cylindrical fabric part is pulled out from the side fabric, The work of taking out the contents of the tube is complicated, and the manufacturing of the cylindrical cloth part also requires complicated work. Furthermore, it was not possible to partially adjust the hardness. Furthermore, when adjusting the height with such a granular filling, a partition member should be formed over the entire boundary between the areas, or a partition member should be formed across each area so that the granular filling does not go back and forth between the areas. It was necessary to prepare an inner bag to accommodate the stuffing. As described above, there is room for improvement in conventional pillows in order to obtain a good night's sleep with a simple operation.

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a pillow that can easily partially adjust the height and firmness, precisely corresponds to the body shape and preferences of the user, and provides optimal sleeping comfort. With the goal.

The invention for solving the above problems is a pillow comprising a central part and an outer circumferential part surrounding the central part in the lateral direction, the inner part of the cover being partitioned into a plurality of internal spaces in the outer circumferential part, a plurality of partition members extending in the direction; a plurality of three-dimensional network structures that are stacked and accommodated in each of the plurality of internal spaces; and a plurality of three-dimensional network structures that are provided on the cover, and that the three-dimensional network structure is attached to and detached from the cover. At least one of the plurality of three-dimensional network structures housed in the same internal space includes an opening for opening and closing the opening, and an opening/closing member for opening and closing the opening. This pillow is characterized by having a hardness different from that of the body.

According to this configuration, the height can be adjusted by changing the number of three-dimensional network structures in each partitioned accommodation space. Further, in each housing space, the hardness can be adjusted by changing the vertical relationship of the three-dimensional network structures having different hardnesses. This makes it possible to provide a pillow that is comfortable to sleep on, with the optimal combination of height and firmness depending on the user's individual body shape and preferences, whether the user is lying on his or her back or on his side.

Preferably, the inside of the cover is partitioned into at least four internal spaces in the outer peripheral portion.

According to this, the height and hardness of the cervical vertebrae support part, the support part on the upper side of the back of the head, and the support part for the temporal region and cheekbones when lying sideways can be adjusted.

It is preferable that the end of the partition member on the side surface of the pillow be formed with a gap provided between it and the inner surface of the cover.

According to this, the three-dimensional network structure can be easily taken in and out, has good air permeability, and is easy to manufacture.

The thickness of the central portion is preferably smaller than the thickness of at least one three-dimensional network structure among the plurality of three-dimensional network structures accommodated in the same internal space.

According to this, since the central part is lower than the outer peripheral part, the cervical vertebrae are supported, thereby preventing strain on the muscles of the neck, shoulders, and chest, and ensuring comfortable sleeping comfort.

According to the pillow according to the present invention, it is possible to partially change the height and firmness during use, and it can be adjusted to the user's individual physique, preferences, and physical condition on the day, and is comfortable whether the user is lying on his back or side. It can provide a comfortable sleeping experience. In addition, partial height and hardness adjustments can be made easily.

FIG. 1 is a plan view of a pillow according to an embodiment of the present invention. FIG. 1 is a perspective view of a pillow according to an embodiment of the invention. FIG. 2 is an enlarged perspective view of corner A in FIG. 1. FIG. FIG. 2 is a developed plan view of the pillow shown in FIG. 1 with the core material removed. It is a perspective view of a state in which three-dimensional network structures are overlapped. FIG. 6 is a plan view of the three-dimensional network structure of FIG. 5 in an expanded state. It is a perspective view of a state in which the slide fastener is partially opened and the core material is taken out from the first region.

Embodiments of the pillow according to the present invention will be described below with reference to FIGS. 1 to 7.

As shown in FIGS. 1 and 4, the pillow 1 according to the present embodiment includes a core material 5 formed by laminating a plurality of three-dimensional network structures 51 and a cover 10 that covers the plurality of core materials 5. There is. The cover 10 is approximately rectangular in plan view, having a pair of long sides 11 and 12 extending in a first direction D1 and a pair of short sides 13 and 14 extending in a second direction D2 intersecting the first direction D1. . The cover 10 is preferably formed from a fabric with good breathability and excellent durability, such as a three-dimensional structured mesh, a fabric with a so-called double raschel structure, or the like. One long side 12 of the pair of long sides is slightly curved inward at the center.

The pillow 1 is, for example, approximately rectangular in plan view with long sides 11 and 12 measuring 50 to 70 cm and short sides 13 and 14 measuring 30 to 50 cm. However, the shape is not limited, and may be, for example, an ellipse with a major axis of 50 to 80 cm and a minor axis of 30 to 60 cm.

The pillow 1 includes a central part 2 on which the back of the user's head is placed, and an outer peripheral part 3 that surrounds the central part 2 in the lateral direction (D1 and D2 directions), and the inside of the cover 10 in the outer peripheral part 3 is partitioned. The member 4 partitions into a plurality of (here, four) internal spaces. The partition member 4 is a fabric whose upper side is sewn to the upper fabric of the cover 10, whose lower side is sewn to the lower fabric of the cover 10, and which extends in the thickness direction of the pillow 1. Further, the internal space of the central portion 2 and the internal space of the outer circumferential portion 3 are partitioned by a suture portion 21 .

As shown in FIGS. 1 and 4, the internal space inside the cover 10 at the outer peripheral portion 3 is divided into a first region 31, a second region 32, a third region 33, a fourth region It is partitioned into regions 34, and a core material 5 is accommodated in each region. The partition member 4 includes a partition member 41 that is adjacent to the outer periphery of the central portion 2 and extends substantially linearly from one short side 13 to the other short side 14 substantially parallel to the long side 11; It includes partition members 42 and 43 that extend in the opposite direction of the partition member 41 and extend toward both ends of the long side 12.

Here, the partition member 4 is for fixing the lateral position of the core material 5 (three-dimensional network structure 51) accommodated therein, and it is not necessary to arrange it at all the boundaries between each area. Instead, it may form part of the boundary. Therefore, it becomes easy to attach the partition member 4 to the cover 10, and as a result, the pillow can be manufactured easily. As shown in FIG. 7, in this embodiment, for the purpose of ease of putting in and taking out the core material 5 and breathability, the partition member 41 is placed on the side surface of the pillow 1 (i.e., on the side edge of the partition member 41). There is a gap It is located on the extension line of the member 41, and is formed with a gap Y provided between it and the sewn portion 21 of the central portion 2. The gaps X and Y are preferably about 1 to 7 cm in the lateral direction. Although not shown in the drawings, the partition members 42 and 43 are also formed with gaps X and Y provided on the outer circumferential side and the center side, similarly to the partition member 41.

As shown in FIG. 1, in plan view, the first region 31 has an elongated substantially rectangular shape with one long side 11 of the pillow 1 and the partition member 41 as long sides, and the first region 31 has an elongated substantially rectangular shape with one long side 11 of the pillow 1 and one long side Located on the 11th side. The second area 32 has a substantially triangular shape with one side being the other long side 12 of the pillow 1 and two sides being the partition members 42 and 43 extending from both ends toward the central part 2. The region 34 is formed as a substantially trapezoid sandwiched between the first region, the second region, and the central portion, with the short sides 13 and 14 of the pillow as one side. It is preferable that the inside of the outer circumferential portion 3 is divided into at least four regions, and six or eight regions are also possible. However, considering the ease of putting in and taking out the core material 5 (three-dimensional network structure 51), it is most preferable to divide it into four parts. In this case, considering the pillow 1 as a whole, it is divided into a central part 2 and first to fourth regions of an outer peripheral part 3, for a total of five regions.

The center part 2 has a circular shape, on which the back of the head of the user when lying on his back is placed, and the upper and lower cover fabrics are sewn together at a seam part 21 serving as the peripheral part. In order to ensure the height inside the outer peripheral part 3, a gusset was provided as a partition member 4, but in the central part 2, the upper and lower fabrics are directly sewn together because the height may be low. .

The height of the central part 2 is preferably lower than any area of the outer peripheral part 3 when one or more core materials 5 are stacked and housed inside the outer peripheral part 3. For example, the height of the central part 2 is lower than that of any area of the outer peripheral part 3. It is preferably 2 mm to 10 mm. The inner space of the central part 2 may or may not contain objects. The thickness of the central portion 2 is set smaller than the thickness of at least one three-dimensional network structure 51 among the three-dimensional network structures 51 stacked. If at least one three-dimensional network structure 51 is accommodated in each region of the outer circumferential portion 3, the outer circumferential portion 3 supporting the cervical vertebrae will be higher than the central portion 2 where the back of the head is placed, so the bed mat It fills the gap between the mattress and the back of the head to the cervical vertebrae, preventing strain on the muscles of the neck, shoulders, and chest, ensuring a comfortable night's sleep. Furthermore, it is preferable that the thickness of the central portion 2 is set smaller than the thickness of any one of the three-dimensional network structures 51 stacked.

Which of the first region 31 and the second region 32 should be used facing the user's body can be determined each time according to the user's preference. For example, if the user tends to change the head position when turning over in bed, the second area 32 can be used on the body side, and if not, the first area 31 can be used on the body side. The user's cervical vertebrae are placed on the first region 31 or the second region 32 located on the user's body side. On the other hand, the third region 33 and the fourth region 34 are where the temporal region and cheekbones are placed when the user sleeps sideways.

As shown in FIGS. 4 to 6, the internal spaces 31a, 32a, 33a, and 34a (other than 31a are not shown) of the first region 31, second region 32, third region 33, and fourth region 34 , a plurality of three-dimensional network structures 51 are accommodated in a stacked manner.

In this embodiment, a maximum of four three-dimensional network structures 51 are accommodated in each of the internal spaces 31a, 32a, 33a, and 34a. The stacked three-dimensional network structures 51 may all have the same thickness or may have different thicknesses. In each region, the three-dimensional network structures 51 accommodated include those having different hardnesses, and in descending order of hardness, the three-dimensional network structure 51a, the three-dimensional network structure 51b, and the three-dimensional network structure 51b. A body 51c is included. In addition to the three-dimensional network structure 51, the core material 5 may also include a sheet material made of another material, such as a urethane sheet or a nonwoven sheet. The hardness of the three-dimensional network structure 51 can be measured and compared by applying JIS K 6400-2:2012 A method.

The three-dimensional network structure 51 is a structure in which loops are formed by irregularly and partially welding continuous filaments made of thermoplastic resin with a filament diameter (diameter) of 0.3 mm to 1.5 mm. It is the body. As shown in FIGS. 5 and 6, the three-dimensional network structure 51 has a sheet shape with a thickness of 1.5 to 3 cm and a smooth and flat surface. The hardness of the three-dimensional network structure 51 can be changed by changing the bulk density (apparent density), wire diameter, synthetic resin material, etc. Although the bulk density is designed as necessary, it is preferably 0.025 g/cm ³ to 0.2 g/cm ³ . Control of the bulk density can be realized by controlling the resin extrusion speed of the extruder and the rotational speed of the take-off machine during production of the three-dimensional network structure 51.

The three-dimensional network structure 51 is formed into a shape that fits the area to be accommodated. Therefore, in the present embodiment, the plurality of three-dimensional network structures 51 accommodated inside the first region 31 are approximately rectangular in plan view, and the plurality of three-dimensional network structures 51 accommodated inside the second region 32 The plurality of three-dimensional network structures 51 housed inside the third region 33 and the fourth region 34 have a substantially trapezoidal shape in plan view.

Thermoplastic resins that serve as raw materials for the three-dimensional network structure 51 include polyethylene thermoplastic resins, polypropylene thermoplastic resins, polyester thermoplastic elastomers, polypropylene thermoplastic elastomers, polyethylene thermoplastic resins, and polyethylene thermoplastics. Preferably, it includes a mixture of elastomers, PVC, polyurethane elastomer, nylon elastomer, polystyrene elastomer, and the like.

As shown in FIGS. 3 and 4, the cover 10 is provided with a slide fastener 8 (opening/closing member) around the entire circumference of the side surface of the pillow 1, and an opening that opens wide by opening the slide fastener 8. 9, the three-dimensional network structure 51 can be easily taken in and out. Note that it is also possible to separately provide the slide fasteners 8 on the outer surfaces of each of the first region 31, the second region 32, the third region 33, and the fourth region 34. Furthermore, instead of the slide fastener 8, a hook-and-loop fastener, a snap button, or the like may be used as the opening/closing member.

The pillow 1 of the present invention can adjust the height by changing the number of three-dimensional network structures 51 in each area according to the user's preferences and body shape, and can adjust the height by changing the number of three-dimensional network structures 51 in each region, or It is possible to adjust the hardness by changing the order of directions. The hardness of the three-dimensional network structure 51 is changed depending on the wire diameter, material, bulk density, etc. of the filaments. The three-dimensional network structure 51 may have a surface layer that has a higher bulk density than the interior.

FIG. 5 is an example of a stacked state of the three-dimensional network structure 51 accommodated in the third region or the fourth region, in which the softest three-dimensional network structure 51c is placed on top, and the middle one is placed below it. Two hard three-dimensional network structures 51b are placed below which is the hardest three-dimensional network structure 51a, and a total of four three-dimensional network structures 51 are stacked to form the core material 5. Here, the hard three-dimensional network structure 51a may be placed on top to change the hardness of the corresponding area, or the number of layers stacked may be two to lower the height of the corresponding area. It is possible.

The pillow 1 according to the present invention is sold as a set including the cover 10 and the maximum number of three-dimensional network structures 51 that can be accommodated, and the user can accommodate the pillow according to the individual's body shape and physical condition on that day. The number and hardness of the three-dimensional network structure can be selected and used by partially adjusting the structure. Since the height and firmness of the pillow according to the present invention can be partially and easily adjusted, it can be easily adapted to the user's body shape and preferences whether lying on the user's back or side, and can accommodate individual differences. You can get the appropriate sleeping comfort.

As an application example of the pillow 1, for example, a pipe connected to an air pump is branched, the branch pipe is inserted into a gap in a three-dimensional network structure, and air is supplied to the three-dimensional network structure and diffused throughout the pillow 1. It can also be applied to structures where Please refer to Japanese Patent No. 6,571,254 for the detailed branch pipe structure, air pump conditions, etc. This allows breathability and cooling effects to be maintained over a long period of time.

Since the core material 5 is made of a three-dimensional network structure 51 and the plurality of three-dimensional network structures 51 can be easily removed from the cover 10, the cover 10 and the three-dimensional network structure 51 can be washed with water, respectively. and can be used hygienically. Moreover, since the core material 5 is composed of the three-dimensional network structure 51, it is easy to take it in and take it out, and it is also easy to replace it.

The present invention is not limited to the embodiments described above, and various modifications, substitutions, deletions, etc. can be made without departing from the technical idea of the present invention, and modifications, equivalents, substitutions, deletions, etc. Loss etc. are also included within the technical scope of the present invention.

1: Pillow 2: Center part 3: Outer peripheral part 4, 41, 42, 43: Partition member 5: Core material 8: Slide fastener (opening/closing member)
9 : Opening part 10 : Cover 11 : Long side 12 : Long side 13 : Short side 14 : Short side 21 : Suture part 31 : First area 32 : Second area 33 : Third area 34 : Fourth area 51 : Tertiary Original network structure A: Corner D1: First direction D2: Second direction X: Gap Y: Gap

The invention for solving the above problems is a pillow comprising a central part and an outer circumferential part surrounding the central part in the lateral direction, wherein the inside of the cover is divided into a plurality of internal spaces in the outer circumferential part. A partition is formed by connecting the upper side and the lower side , and a plurality of planar partition members extending radially laterally from the central portion and also extending in the thickness direction are stacked and housed in each of the plurality of internal spaces. A three -dimensional network structure, which is a structure in which a plurality of continuous filaments made of thermoplastic resin are irregularly partially welded to form a loop, and a part of the outer periphery of the cover. The three-dimensional network structure is provided continuously around the entire circumference , and includes an opening for making the three-dimensional network structure detachable from the cover, and an opening/closing member for opening and closing the opening, and are housed in the same internal space. At least one of the plurality of three-dimensional network structures is a pillow characterized in that it has a hardness different from that of the other three-dimensional network structures.

Claims (4)

A pillow comprising a central part and an outer peripheral part surrounding the central part in the lateral direction,
a plurality of partition members that partition the inside of the cover into a plurality of internal spaces at the outer peripheral portion and extend in the thickness direction;
a plurality of three-dimensional network structures stacked and accommodated in each of the plurality of internal spaces;
an opening provided in the cover for allowing the three-dimensional network structure to be attached to and removed from the cover;
an opening/closing member that opens and closes the opening,
A pillow, wherein at least one of the plurality of three-dimensional network structures housed in the same internal space has a hardness different from that of the other three-dimensional network structures. The pillow according to claim 1, wherein the inside of the cover is partitioned into at least four internal spaces in the outer peripheral portion. 2. The pillow according to claim 1, wherein the end of the partition member on the side surface of the pillow is formed with a gap provided between it and the inner surface of the cover. According to claim 1, the thickness of the central portion is smaller than the thickness of at least one three-dimensional network structure among the plurality of three-dimensional network structures accommodated in the same internal space. Pillow as described.