JP6980539B2 - Cushion body for bedding - Google Patents

Description

The present invention relates to a bedding cushion body that constitutes a bedding such as a mattress or a mattress, and more particularly to a bedding cushion body that can be used for sleeping in a sideways posture.

Most people lie on their backs when they go to bed, but if they continue to lie on their backs, blood circulation in the area where body pressure is applied deteriorates, so they should turn over during sleep, including when they fall asleep. It is important to do.

Japanese Patent No. 3564598

However, since turning over is performed when the brain is close to awakefulness, there is a demand for a cushion body for bedding that can turn over without burden in order to suppress halfway awakening.

In addition, many conventional mattresses and mattresses are supposed to sleep on their backs, and when they take a sideways posture, the contact area between the body and the mattress or mattress becomes smaller, and the body pressure distribution is poor, and the shoulders There was a problem that the burden on the waist and the waist became large.

As a method for improving the body pressure dispersibility, for example, as in the mattress described in Patent Document 1, it is conceivable to change the size of the protrusion according to the part of the body that touches the ground, but the size of the protrusion is considered. It is necessary to manufacture a single mattress by combining a plurality of different cushion members, which causes problems of poor productivity and high manufacturing cost. In addition, there was room for improvement in body pressure dispersibility when taking a sideways posture.

Therefore, in view of the above problems, the present inventor provides a cushion body for bedding that is excellent in productivity, easy to turn over, and has excellent body pressure dispersibility even when a sideways posture is taken. That is the issue.

The cushion body for bedding according to the present invention has a rectangular cushion member made of foamed resin and a groove formed in the cushion member, and the groove extends in the longitudinal direction of the cushion member. in a region located outside the left and right sides 10cm or more from the center in the width direction of the cushion member, possess 4 or more deep grooves than the groove in the width direction inside the adjacent deep grooves than the groove in the width direction inside said adjacent formation In the area located outside the width direction, the groove has four or more shallower grooves than the adjacent inner groove in the width direction, the groove is deeper than the inner groove in the adjacent width direction, and the inner groove is adjacent to the width direction. It is assumed that the groove shallower than the groove and the bottom of each groove formed between these grooves are formed so as to be located on a substantially arc.

The cushion body for bedding according to the present invention has a rectangular cushion member made of an aggregate of natural fibers or synthetic fibers, and a groove formed in the cushion member, and the groove is in the longitudinal direction of the cushion member. a groove extending in a region located outside the left and right sides 10cm or more from the center in the width direction of the cushion member, the inside in the width direction adjacent possess four or more deep grooves than the groove, in the width direction inside said adjacent In the region located outside the width direction where the groove deeper than the groove is formed, the groove has four or more shallower grooves than the adjacent inner groove in the width direction and is deeper than the adjacent inner groove in the width direction. It is assumed that the grooves shallower than the adjacent inner grooves in the width direction and the bottoms of the grooves formed between these grooves are formed so as to be located on a substantially arc.

The bedding cushion body may have a groove extending in the width direction.

In the bedding cushion body, the grooves extending in the longitudinal direction may be formed line-symmetrically in the width direction.

The cushion body for bedding according to the present invention has high cushioning property by having four or more grooves deeper than the inner groove in the width direction in the region located 10 cm or more on both the left and right sides from the center of the width direction of the cushion member. Therefore, it is easy to turn over, and even if you take a sideways posture, you can sink it along the contour of your body, so it has excellent body pressure distribution and reduces the burden on your shoulders and hips. be able to. Further, since it can be manufactured only by forming a groove in the cushion member, it is excellent in productivity.

It is a cross-sectional view in the width direction of the cushion body for bedding which concerns on embodiment of this invention, (a) is the cross-sectional view in the supine position, (b) is the cross-sectional view in the time of lying down. A plan view of a cushion body for bedding according to an embodiment of the present invention (horizontal direction in the figure is the longitudinal direction). It is a schematic diagram showing the classification of the user's body shape, (1) is a schematic diagram showing the body shape of a person with a protruding back line curve, and (2) is a schematic diagram showing a person's body shape with a protruding buttock line curve. The schematic diagram shown, (3) is a schematic diagram showing a person's body shape in which the protrusion of the curve of the back line and the curve of the buttock line are almost the same. It is a longitudinal sectional view of the cushion body for bedding according to a preferable embodiment, (1) is a sectional view of the cushion body 1a for bedding, (2) is a sectional view of the cushion body 1b for bedding, (3). Is a cross-sectional view of the cushion body 1c for bedding. A partial cross-sectional view showing the depth of grooves and the spacing between grooves in regions B1 to B4 (including branch numbers) in cushion bodies 1a to 1c for bedding. The plan view which shows the region with different cushioning property generated by the combination of the groove 3 and the groove 5 of the cushion body for bedding. FIG. 3 is a body pressure distribution diagram when the cushion body for bedding according to Example 1 is used in a supine position. FIG. 3 is a body pressure distribution diagram when the cushion body for bedding according to Comparative Example 1 is used in a supine position. FIG. 3 is a body pressure distribution diagram when the cushion body for bedding according to Example 1 is used in a sideways posture. FIG. 3 is a body pressure distribution diagram when the cushion body for bedding according to Comparative Example 1 is used in a sideways posture. Body pressure distribution map when lying directly on the board in a supine position. Body pressure distribution map when lying directly on the board in a sideways posture.

Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1A and 1B are widthwise cross-sectional views of the bedding cushion body 1 according to the present embodiment, where FIG. 1A is a cross-sectional view when lying down and FIG. 1B is a cross-sectional view when lying down. Further, FIG. 2 is a plan view of the bedding cushion body 1 at the time of use as viewed from above.

As shown in FIGS. 1 and 2, the cushion body 1 for bedding according to the present embodiment has a rectangular cushion member 2 made of foamed resin and a groove formed in the cushion member 2, and the groove is formed. In the region A extending in the longitudinal direction of the cushion member 2 and located 10 cm or more on both the left and right sides from the center 6 in the width direction of the cushion member 2, four or more grooves 3 deeper than the adjacent inner groove in the width direction are formed. It has. The groove 3 deeper than the adjacent inner groove in the width direction means that the groove 3 is deeper than the inner groove of the groove 3 and the groove 3'is deeper than the groove 3 in FIG. Therefore, two grooves 3 deeper than the inner groove are arranged on the left and right, for a total of four grooves.

The material of the cushion member 2 is not particularly limited as long as it is a foamed resin, and examples thereof include polyurethane resin and polyethylene resin.

The cushion member 2 may have a single-layer structure, or may have a structure in which two or more members having different hardness and materials are laminated.

The hardness of the cushion member 2 is not particularly limited, but is preferably 60 to 170 N, more preferably 80 to 160 N, from the viewpoint of durability. Here, the hardness of the cushion member 2 is a value obtained by measuring the hardness at 25% constant compression in accordance with JIS K6400-2.

The thickness of the cushion member 2 is not particularly limited and may be appropriately selected depending on the depth of the groove to be formed, but is preferably 4 to 20 cm, more preferably 6 to 16 cm, for example. It is more preferably 8 to 11 cm. When it is 4 cm or more, it is excellent in cushioning property and durability, and when it is 20 cm or less, it is not too heavy and easy to handle.

The length of the cushion member 2 in the width direction and the length direction can be adjusted to a size such as a single size or a semi-double size.

The groove 3 deeper than the adjacent inner groove in the width direction is not particularly limited as long as it is formed in the region A located 10 cm or more on both the left and right sides of the center 6 in the width direction of the cushion member 2, but the center 6 in the width direction 6 It is preferably formed in a region located 10 to 40 cm outside on both the left and right sides, and more preferably formed in a region located 12 to 20 cm outside on both the left and right sides from the center 6 in the width direction. As shown in FIG. 1 (a), when the body lays on its back in the center in the width direction, the body hardly touches the region A, so that the formation of the groove 3 may affect the sleeping comfort when lying on its back. No. Further, in the region where the groove 3 is formed, the cushion member 2 gradually becomes softer toward the outside in the width direction and can sink along the contour of the body, so that it becomes easier to turn over and the cushioning property suddenly changes. Since it does not exist, it does not affect the comfort of sleeping.

The groove 3 is not particularly limited as long as four or more grooves 3 are formed on both the left and right sides in the region A.

The depth of the groove 3 is not particularly limited, but is preferably 1 to 7 cm, more preferably 2 to 5 cm.

The width of the groove 3 is not particularly limited, but is preferably 2 to 10 mm, more preferably 4 to 7 mm.

The distance between the grooves 3 can be appropriately selected depending on the hardness of the cushion member 2 and the part of the body that comes into contact with the cushion member 2.

In the region located on the outer side in the width direction from the region where the groove 3 is formed, it is preferable to have four or more grooves 4 shallower than the adjacent inner groove in the width direction as shown in FIG. The groove 4 shallower than the adjacent inner groove in the width direction is, in FIG. 1, the groove 4 is shallower than the inner groove of the groove 4, the groove 4'is shallower than the groove 4, and the groove 4 is shallower than the groove 4'. '' Means shallow. Therefore, three grooves 4 shallower than the inner groove are arranged on the left and right, for a total of six grooves.

That is, in the regions A on both the left and right sides in the cross section of the cushion member 2 in the width direction, the grooves 3, the grooves 4, and the bottoms of the grooves formed between the grooves 3 and the grooves 4 are located on substantially arcs. It is preferably formed. As shown in FIG. 1B, the cushion body 1 for bedding according to the present embodiment is used because each groove bottom is formed so as to be located on a substantially arc in the widthwise cross section of the cushion member 2. When a person takes a sideways posture, the cushion member 2 can sink in accordance with the contour of the body, and the body pressure dispersibility in the sideways posture is excellent. Further, in the region where the groove 4 is formed, the cushion member 2 gradually becomes harder toward the outside in the width direction, so that when the user shifts his / her weight further outward in the width direction from the sideways posture, the body is supported inward in the width direction. It is possible to prevent the cushion body 1 for bedding from falling off.

The groove 4 is not particularly limited as long as it is formed in a region located outside the region in which the groove 3 is formed, but is located 20 to 70 cm outside the center 6 in the width direction of the cushion member 2 on both the left and right sides. It is preferable that the region is located 25 to 50 cm outside from the center 6 in the width direction on both the left and right sides.

The depth of the groove 4 is not particularly limited, but is preferably 1 to 7 cm, more preferably 1 to 5 cm.

The width of the groove 4 is not particularly limited, but is preferably 2 to 10 mm, more preferably 4 to 7 mm.

The distance between the grooves 4 can be appropriately selected depending on the hardness of the cushion member 2 and the part of the body that comes into contact with the cushion member 2.

FIG. 3b is a longitudinal sectional view of the bedding cushion body 1 according to a preferred embodiment. The shape of the contact patch when lying down (the shape of the back surface when lying down, the shape of the side surface when lying down) differs from person to person. It is said that the ideal posture when lying down in a supine position is the same as when standing straight, and from the accumulated data of the back shape measured in a straight standing posture, the characteristics of the back shape are large. It can be divided into three categories. Specifically, as shown in FIG. 3a, the posture in which the ears 7, shoulders 8, large trousers 9, and buttocks 10 are located on substantially the same vertical plane 11 is regarded as a straight standing posture, and this vertical posture is set on the back. Classify by the angle formed by the line 12 (hereinafter referred to as the line connecting the back and the buttocks) connecting the most protruding part from the surface 11 and the most protruding part from the vertical surface 11 in the buttocks. Can be done.

In the bedding cushion body 1a shown in FIG. 3b (1), as shown in FIG. 3a (1), the line 12 connecting the back and the buttocks is inclined toward the back side of the body, and the curve of the back line protrudes. It was designed with people in mind. In the bedding cushion body 1b shown in FIG. 3b (2), as shown in FIG. 3a (2), the line 12 connecting the back and the buttocks is inclined toward the front side of the body, and the curve of the buttocks line protrudes. It was designed with people in mind. In the bedding cushion body 1c shown in FIG. 3b (3), as shown in FIG. 3a (3), the line 12 connecting the back and the buttocks is substantially parallel to the vertical plane 11 and has a curve of the back line. It was designed assuming that the protrusion of the curve of the buttock line is almost the same.

As shown in FIG. 3b, the bedding cushion body 1 according to the preferred embodiment may have a groove 5 extending in the width direction. At this time, the cushion member 2 can be designed by dividing it into a plurality of regions depending on which part of the user's body touches the ground in the longitudinal direction. B2 was divided into a region where the scapula and the abdomen of the abdomen touched the ground, B3 was divided into a region where the waist touched the ground, and B4 was divided into a region where the buttocks touched the ground. The depths of the grooves and the intervals between the grooves in the regions B1 to 4 of the bedding cushion bodies 1a to 1c shown in FIG. 3b can be shown in FIGS. 4 (a) to 4 (f), for example.

A person with a protruding back line curve shown in FIG. 3a (1) has poor body pressure dispersibility around the shoulder blades when lying on his back. Therefore, assuming such a user, for example, the cushion body 1a for bedding as shown in FIG. 3b (1) can be designed, and the curve of the back line and the buttocks shown in FIG. 3b (3) can be designed. Compared to the bedding cushion body 1c designed for people who have almost the same protrusion of the line curve, the depth of the groove 5 provided in the area B2 is deepened to improve the cushioning property of the area B2 and the shoulder. It is possible to improve the dispersibility of body pressure around the buttocks.

In addition, the person whose hip line curve is projected as shown in FIG. 3a (2) has poor body pressure dispersibility around the buttocks when lying on his back. Therefore, assuming such a user, for example, the cushion body 1b for bedding as shown in FIG. 3b (2) can be designed, and the curve of the back line and the buttocks shown in FIG. 3b (3) can be designed. Compared to the bedding cushion body 1c designed for people with almost the same line curve protrusion, the depth of the groove 5 provided in the area B4 is deepened to improve the cushioning property of the area B4 and the buttocks. It is possible to improve the dispersibility of body pressure around the area.

By forming the groove 5 extending in the width direction in addition to the groove extending in the longitudinal direction in this way, as shown in FIG. 5, the combination of the depth of each groove and the interval for forming the groove is different, that is, the cushioning property (that is, the cushioning property ( Regions with different repulsive forces) can be formed in one cushion member. Specifically, for example, the region C1 where the region B2 intersects with the region less than 10 cm on both the left and right sides from the center in the width direction, the region C2 where the region B3 intersects with the region less than 10 cm on both the left and right sides from the center in the width direction, and the left and right from the center in the width direction. Regions C3 where regions less than 10 cm on both sides intersect with regions B4, regions C4 where regions D and regions B2 where grooves 3 and 4 are formed intersect, regions C5 where regions D and regions B3 intersect, regions D and regions B4 Examples include intersecting regions C6.

The grooves 3 to 5 are preferably formed line-symmetrically in the width direction, and are preferably formed on the same surface of the cushion member 2.

The cushion body 1 for bedding of the present invention can be manufactured only by forming a groove in one cushion member 2 which has been conventionally used, and has been manufactured by combining a plurality of cushion members. Compared to the cushion body for bedding, the productivity is high and the manufacturing cost can be kept low.

In the above embodiment, the cushion member 2 made of foamed resin has been described, but the present invention is not limited to this, and a cushion made of an aggregate of natural fibers or synthetic fibers obtained by compression molding of natural fibers or synthetic fibers. It can also be applied to members.

Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. This embodiment and its modifications are included in the scope and gist of the invention as well as the invention described in the claims and the equivalent scope thereof.

Hereinafter, examples of the present invention will be shown, but the present invention is not limited to these examples. [Examples, comparative examples]
Grooves 3 to 5 are formed on the urethane resin cushion member 2 having a hardness (at 25% constant compression): 166 N, a thickness: 90 mm, a longitudinal direction: 2000 mm, and a width direction: 1000 mm, as shown in FIGS. 1 and 2. It was referred to as Example 1. Specifically, the depth of the groove extending in the longitudinal direction of the cushion member 2 is the inner groove in the width direction adjacent to the groove 3: 30 mm, the groove 3: 40 mm, the groove 3': 50 mm, and the width direction adjacent to the groove 4. The inner groove was 50 mm, the groove was 4: 40 mm, the groove was 4': 30 mm, the groove was 4'': 10 mm, and the distance between the grooves was 40 mm. Further, the grooves 5 extending in the width direction of the cushion member 2 are formed in the shapes, intervals, and depths shown in FIGS. 4A, 4C, and 4E. The body pressure dispersibility of the obtained cushion body for bedding was measured according to the following method.

-Body pressure dispersibility: "SR Soft Vision (registered trademark)" manufactured by Sumitomo Riko Co., Ltd. is laid on the cushion member as a body pressure dispersion measurement system, and the curve of the back line of height: 177 cm and weight: 66 kg protrudes. Was measured as a subject. As shown on the right side of the body pressure distribution diagram of FIGS. 6 to 11, it is shown that the darker the color tone, the higher the body pressure. Further, the body pressure dispersion measurement system is provided with 1600 body pressure sensing sensors, and the larger the number of sensors that have detected the body pressure (hereinafter referred to as the ground contact point), the larger the ground contact area and the body pressure. Shows excellent dispersibility.

As Comparative Example 1, grooves having a depth of 36.6 mm are formed at equal intervals (41 mm) in the longitudinal direction of the same cushion member 2 as in Example 1, and grooves having a depth of 36.6 mm are formed at equal intervals (region B1) in the width direction. The area corresponding to the region is formed with an interval of 41 mm, and the area corresponding to the areas B2, 3 and 4 is formed with an interval of 56.9 mm). A cushion body for bedding, which is a groove (as in the mattress described in Patent Document 1, the shape of the protrusion has a flat top surface, and a curved groove is provided between the protrusions. , The lower part of the protrusion is constricted because it is a cushion), and as Comparative Example 2, the body pressure dispersibility when lying directly on the board was measured.

The measurement results are as shown in Table 1, and the grounding point of Example 1 when lying down is the same as that of Comparative Example 1 with no difference of 9 points, and the grounding point of Example 1 when lying down is. It was 22 points higher than that of Comparative Example 1, and was excellent in body pressure dispersibility. The ground contact point of Comparative Example 2 was lower than that of Example 1 and Comparative Example 1 in both the supine and lying positions, and the body pressure dispersibility was significantly inferior.

Further, in Example 1, when the patient lay on his / her back in the center of the width direction, the same result as that of Comparative Example 1 was obtained from the comparison of the body pressure dispersion diagrams of FIGS. It turns out that it is excellent. Further, when lying down in the sideways posture in the region D where the grooves 3 and 4 are formed, the area of the region where the body pressure is 63 mmHg or more is smaller than the body pressure dispersion diagram of FIG. 8, and FIG. 9 shows. It can be seen that the body pressure dispersibility when lying down is superior to that of Comparative Example 1 shown. From the body pressure distribution diagrams of FIGS. 10 and 11, when lying directly on the plate, the area of the region where the body pressure is 63 mmHg or more is large in both the supine and lying positions, and Comparative Example 2 is Example 1. And the body pressure dispersibility was significantly inferior to that of Comparative Example 1.

Further, except that the grooves 5 extending in the width direction of the cushion member 2 are formed in the form, spacing, and depth shown in FIGS. 4 (a), (b), (d), and (f), the same as in Example 1. Example 2 is the same as that produced, and the grooves 5 extending in the width direction of the cushion member 2 are formed in the shapes, intervals, and depths shown in FIGS. 4 (a), (b), (d), and (e). Example 3 was prepared in the same manner as in Example 1 except that it was formed.

The hardness of regions C1 to C6 was measured for the obtained Examples 1 to 3, and the results are shown in Table 2. The measuring method was based on JIS K6400-2, and the hardness at 25% constant compression was measured.

As shown in Table 2, it was found that the hardness of the cushion member 2 can be partially changed by appropriately combining the depths of the grooves and the spacing between the grooves.

The region C1'where the region B2-2 according to the first embodiment intersects with the region less than 10 cm on both the left and right sides from the center 6 in the width direction has a lower hardness and a higher cushioning property as compared with the second and third examples, and the scapula. Excellent body pressure dispersibility around. Further, the region C4'where the region B2-2 and the region D intersect has a higher cushioning property and is also excellent in body pressure dispersibility in a sideways posture.

The region C3'where the region B4-2 according to the second embodiment intersects with the region less than 10 cm on both the left and right sides from the center 6 in the width direction has a lower hardness and a higher cushioning property as compared with the first and third embodiments, and the area around the buttocks. Has excellent body pressure dispersibility. Further, the region C6'where the region B4-2 and the region D intersect has a higher cushioning property and is also excellent in body pressure dispersibility in a sideways posture.

1 ... Cushion body for bedding 2 ... Cushion member 3 ... Groove extending in the longitudinal direction and deeper than the adjacent inner groove in the width direction 4 ...・ Groove extending in the longitudinal direction and shallower than the adjacent inner groove in the width direction 5 ・ ・ ・ ・ ・ Groove extending in the width direction 6 ・ ・ ・ ・ ・ Center in the width direction 7 ・ ・ ・ Ear 8 ・・ ・ ・ ・ Shoulder 9 ・ ・ ・ Large trousers 10 ・ ・ ・ ・ Cushions 11 ・ ・ ・ ・ Ears, shoulders, large trousers, and ankles are located on substantially the same plane. Line connecting the most protruding part from the vertical surface 11 on the back and the most protruding part from the vertical surface 11 on the buttocks A ... Region B1 located 10 cm or more on both the left and right sides from the center in the width direction of the cushion member.・ ・ ・ ・ Region B2 where the head and feet touch in the longitudinal direction of the cushion member B2 ・ ・ ・ ・ Region B3 where the shoulder blade and the abdomen touch in the longitudinal direction of the cushion member Region B4 where the waist touches in the longitudinal direction ... Region C1 where the buttocks touch in the longitudinal direction of the cushion member ... Region C2 where the region B2 intersects the region less than 10 cm on both the left and right sides from the center in the width direction. ... Area C3 where the area B3 intersects with the area less than 10 cm on both the left and right sides from the center in the width direction ... Area C5 where the area B2 intersects ... Area C6 where the area D and the area B3 intersect ... Area D where the area D and the area B4 intersect ... The area where the grooves 3 and 4 are formed.

Claims (4)

It has a rectangular parallelepiped cushion member made of foamed resin and a groove formed in the cushion member.
The groove extends in the longitudinal direction of the cushion member, and has four or more grooves deeper than the adjacent inner groove in the width direction in a region located 10 cm or more on both the left and right sides of the center of the cushion member in the width direction. death,
In the region located outside the width direction where the groove deeper than the adjacent inner groove in the width direction is formed, the region has four or more grooves shallower than the adjacent inner groove in the width direction.
The bottom of each groove deeper than the adjacent inner groove in the width direction, shallower than the inner groove in the adjacent width direction, and the groove formed between these grooves is formed so as to be located on a substantially arc. Cushion body for bedding , which is characterized by being made. It has a rectangular parallelepiped cushion member made of an aggregate of natural fibers or synthetic fibers, and a groove formed in the cushion member.
The groove extends in the longitudinal direction of the cushion member, and has four or more grooves deeper than the adjacent inner groove in the width direction in a region located 10 cm or more on both the left and right sides of the center of the cushion member in the width direction. death,
In the region located outside the width direction where the groove deeper than the adjacent inner groove in the width direction is formed, the region has four or more grooves shallower than the adjacent inner groove in the width direction.
The bottom of each groove deeper than the adjacent inner groove in the width direction, shallower than the inner groove in the adjacent width direction, and the groove formed between these grooves is formed so as to be located on a substantially arc. Cushion body for bedding , which is characterized by being made. The cushion body for bedding according to claim 1 or 2 , wherein the cushion body has a groove extending in the width direction. The cushion body for bedding according to any one of claims 1 to 3 , wherein the groove extending in the longitudinal direction is formed line-symmetrically in the width direction.

Images