WO2020213533A1 - Method for determining pillow height and measuring tool for determining pillow height - Google Patents

Abstract

A method for determining a pillow height according to an embodiment comprises: a step of detecting a first intersection point C1 being a point of intersection between a first straight line L1 extending downward from a cheekbone M1 of a user M facing frontward and a second straight line L2 extending laterally from a mouth M3 of the user M; a step of detecting a second intersection point C2 being a point of intersection between the second straight line L2 and a contour M4 of the face of the user M; a step of detecting a length X between the first intersection point C1 and the second intersection point C2, or an angle θ between the first straight line L1 and a third straight line L3 connecting the cheekbone M1 and the second intersection point C2; and a step of determining a height of a part to be in contact with a cheek from the length X or the angle θ.

Description

Pillow height determination method and pillow height determination measuring tool

The present disclosure relates to a pillow height determination method and a pillow height determination measuring tool.
This application claims priority based on Japanese Application No. 2019-077379 of April 15, 2019, and incorporates all the contents described in the Japanese application.

Japanese Unexamined Patent Publication No. 2017-64107 describes a bedding shape measuring device used when selecting a pillow. The bedding shape measuring device acquires the shapes of the back of the head and the neck of the subject who is the purchaser of the pillow as shape data. The bedding shape measuring device has a function of automatically selecting and displaying a pillow suitable for the subject based on the acquired body shape data of the subject.

The bedding shape measuring device includes a plurality of rod-shaped bodies applied to the back of the head and neck of the subject, a plurality of sensors arranged on one side of each rod-shaped body in the longitudinal direction, and a rod-shaped body obtained by the sensors. It is provided with a substrate for acquiring shape data of the back of the head and the neck from the position. In this bedding shape measuring device, the shape data is automatically acquired from the position of each rod-shaped body by acquiring the information of the back of the head and the neck as shape data from the positions of the rod-shaped bodies detected by a plurality of sensors. .. Then, in the bedding shape measuring device, a list of pillows is displayed on the information terminal according to the heights of the measured occipital region and neck of the subject.

JP-A-2007-64107

The above-mentioned bedding shape measuring device acquires shape data of the back of the head and neck based on the positions of a plurality of rod-shaped bodies, and displays a list of pillows on an information terminal based on the acquired shape data. In this bedding shape measuring device, it is possible to acquire the body shape data of the subject lying on his back by acquiring the shape data of the back of the head and the neck of the subject.

By the way, if the pillow is not suitable for the user who sleeps sideways, it may press the cheeks of the user when sleeping sideways. If the cheeks are compressed when lying sideways on a pillow, the pressure may be concentrated on the cheekbones, blocking blood flow in the cheeks and preventing the maintenance of healthy skin. However, in the above-mentioned bedding shape measuring device, no consideration is given to the acquisition of the body shape data of the subject when lying sideways.

It is an object of the present disclosure to provide a pillow height determination method and a pillow height determination measuring tool that can propose a pillow suitable for lying sideways.

The pillow height determination method according to the present disclosure is a pillow height determination method for determining the height of the portion of the pillow where the user's cheeks touch when the user sleeps sideways on the pillow, and faces the front. The process of detecting the first intersection, which is the intersection of the first straight line extending downward from the cheekbone of the user and the second straight line extending laterally from the mouth of the user, the second straight line, and the face of the user. The length between the step of detecting the second intersection, which is the intersection of the contours, and the first intersection and the second intersection, or the angle formed by the third straight line and the first straight line connecting the cheekbone and the second intersection. It is provided with a step of detecting the above and a step of determining the height of the portion where the cheek touches from the length or the angle.

In this pillow height determination method, the height of the pillow where the user's cheeks hit when the user sleeps sideways on the pillow is determined. In this pillow height determination method, a first straight line extending downward from the user's face from the front-facing user's cheekbone, a second straight line extending laterally from the front-facing user's mouth, and the second straight line. The third straight line extending from the second intersection, which is the intersection of the two straight lines and the contour of the face, to the cheekbone is obtained. The cheekbones, the first intersection and the second intersection form a right-angled triangle. In the pillow height determination method, the height of the part where the cheek of the pillow hits is determined from the length between the first intersection and the second intersection, or the angle formed by the third straight line and the first straight line forming the hypotenuse. .. The length between the first intersection and the second intersection, and the angle between the third straight line and the first straight line, are both the degree of inclination of the third straight line with respect to the first straight line extending downward from the cheekbone, that is, from the cheekbone. It corresponds to the degree of inclination of the part extending toward the jaw. Specifically, when the length is long or the angle is large, the face is tightened from the cheekbone to the chin, and when the length is short or the angle is small, the face is from the cheekbone to the chin. The part facing toward is covered with gills, showing a thick face. Therefore, it is possible to determine whether the user's face is thin or thick by detecting the length or the angle. Therefore, by determining the height of the portion where the cheeks of the pillow hit when sleeping sideways from the length or the angle, it is possible to propose a pillow suitable for sleeping sideways according to the shape of the user's face. Further, in the pillow height determination method, since the shape of the user's face facing the front may be measured, it is not necessary to lie down on the bedding or the like. Therefore, it is possible to eliminate the need for a dedicated space for arranging the bedding and the like, and it is possible to realize space saving.

The pillow height determining measuring tool according to the present disclosure is a pillow height determining measuring tool used when determining the height of a portion of the pillow where the cheek of the user touches, and is used by the user facing the front. Detects a first straight line extending downward from the cheekbone, a second straight line extending laterally from the user's mouth, and a third straight line extending from the intersection of the second straight line and the contour of the user's face to the cheekbone. ..

This pillow height determination measuring tool has a first straight line extending downward from the user's cheekbone facing the front, a second straight line extending laterally from the user's mouth, a second straight line, and the user's face. A third straight line extending from the intersection with the contour of the cheekbone is detected. Therefore, it is possible to form a right triangle including a first straight line extending downward from the cheekbone, a second straight line extending laterally from the mouth, and a third straight line extending from the intersection of the second straight line and the contour of the face to the cheekbone. it can. Therefore, the length from the first intersection, which is the intersection of the first straight line and the second straight line, to the second intersection, which is the intersection of the second straight line and the third straight line, or the angle formed by the third straight line and the first straight line. By obtaining the above, the height of the portion where the cheeks of the pillow touches can be determined in the same manner as the above-described pillow height determination method. As a result, since the height of the portion where the cheeks of the pillow touches can be determined from the length or the angle, it is possible to propose a pillow suitable for lying sideways according to the shape of the user's face. Further, since the shape of the user's face facing the front may be measured, the shape can be measured efficiently. That is, the shape of the user's face facing the front may be measured, and it is not necessary to lie down on the bedding or the like for the measurement. Therefore, since the bedding and the like for measurement can be eliminated, the space for measurement can be saved.

According to this disclosure, it is possible to propose a pillow suitable for lying sideways.

It is a figure which shows the example of the pillow to which the pillow height determination method and the pillow height determination measuring tool which concerns on 1st Embodiment are applied. Each of (a), (b) and (c) is a diagram exemplifying the type of face shape of the user. It is a front view of an exemplary user for demonstrating the pillow height determination method which concerns on 1st Embodiment. It is a figure which shows the example of the pillow height determination method using the pillow height determination measuring tool which concerns on 1st Embodiment. It is a front view which shows the measuring tool for determining the pillow height of FIG. It is a figure which shows the example of the pillow height determination method using the pillow height determination measuring tool which concerns on 2nd Embodiment. It is a front view which shows the example measuring tool for pillow height determination of FIG. It is a figure which shows the experimental result of the experiment which used the pillow height determination method and the pillow height determination measuring tool which concerns on Example. It is a graph which shows the relationship between the maximum pressure value obtained for each type of the face shape of the user obtained in the experiment of FIG. 8 and the number of pads. It is a graph which shows the relationship between the average pressure value obtained for each type of the face shape of the user obtained in the experiment of FIG. 8 and the number of pads.

In the following, the pillow height determination method and the pillow height determination measuring tool according to the present disclosure will be described with reference to the drawings. The present disclosure is not limited to the following examples, and is shown in the claims and is intended to include all modifications within the scope of the claims. In the description of the drawings, the same or corresponding elements are designated by the same reference numerals, and duplicate description will be omitted as appropriate. In addition, the drawings are partially simplified or exaggerated for easy understanding, and the dimensional ratios and the like are not limited to those described in the drawings.

(First Embodiment)
First, an example of a pillow to which the pillow height determination method and the pillow height determination measuring tool according to the present embodiment are applied will be described with reference to FIG. As shown in FIG. 1, the pillow 1 according to the present embodiment is, for example, a pillow body used in a state of being housed in a pillow cover for preventing stains. As an example, the pillow 1 is used by being placed on a bedding such as a mattress or a mattress. The pillow 1 has a pair of long sides 2 extending in the first direction D1 and a pair of short sides 3 extending in the second direction D2 intersecting the first direction D1. The first direction D1 is the longitudinal direction of the pillow 1, and the second direction D2 is the width direction of the pillow 1.

For example, the first direction D1 and the second direction D2 are orthogonal to each other. The long side 2 includes a first long side 2b located on one side of the second direction D2 and a second long side 2c located on the other side of the second direction D2. The second long side 2c is, for example, a portion on which the neck of the user M (see FIG. 2) is placed. The short side 3 includes a first short side 3b located on one side of the first direction D1 (left side in FIG. 1) and a second short side 3c located on the other side of the first direction D1 (right side in FIG. 1). including. In the present specification, the "user" refers to a person who may use the pillow 1, for example, a person who tries the pillow 1 before purchasing the pillow 1.

The pillow 1 is, for example, a pair of first partition portions 5 located on both end sides of the first direction D1 and a second partition portion located on the corner portion 10b side of the side ground 10 with respect to each first partition portion 5. 6 and. Each first partition portion 5 partitions the internal space of the pillow 1. A first portion P1 on which the cheek of the user M is placed is provided between each first partition portion 5 and each second partition portion 6, and is used on the corner portion 10b side of each second partition portion 6. A second portion P2 on which a portion extending from the cheek to the chin of the person M is placed is provided.

For example, the second partition portion 6 partitions only the surface of the side ground 10, and a sheet-shaped height adjusting member 8 can be taken in and out on the back side of the surface of the side ground 10 in each second portion P2. .. As an example, the second portion P2 has a pocket shape into which a sheet-shaped height adjusting member 8 can be taken in and out. The thickness of the height adjusting member 8 is, for example, 0.5 cm or more and 2.0 cm or less, and 1.0 cm as an example. By moving the height adjusting member 8 in and out of the second portion P2, the height of the second portion P2 with respect to the first portion P1 can be appropriately adjusted.

The material of the height adjusting member 8 contains, for example, at least one of cotton and urethane. When the material of the height adjusting member 8 is cotton, the height adjusting member 8 can be easily washed. Further, when the material of the height adjusting member 8 is urethane, the shape of the height adjusting member 8 can be made more stable, so that the height adjusting member 8 can be made easier to put in and take out from the second portion P2. Is.

In the pillow height determination method and the pillow height determination measuring tool according to the present embodiment, the height of the second portion P2 of the pillow 1 is determined according to the shape of the face of the user M. As an example, the facial shape of the user M is a thin face type A that is tightened from the cheekbone M1 toward the jaw M2 as shown in FIG. 2 (a) and a cheekbone as shown in FIG. 2 (c). It is divided into a thick face type C with an ella stretched from M1 to the chin M2 and a medium thin face type B as shown in FIG. 2 (b).

In the present embodiment, the height of the second portion P2, which is the portion where the cheek of the user M of the pillow 1 hits when the user M sleeps sideways on the pillow 1, is determined. For example, as in the above type A, type B and type C, we propose a pillow 1 in which the height of the second portion P2 is changed according to the face type of the user M. The pillow height determination method and the pillow height determination measuring tool for classifying the face type of the user M will be described below.

First, the pillow height determination method will be explained. As shown in FIG. 3, a first straight line L1 extending downward from the cheekbone M1 of the user M facing the front and a second straight line L2 extending laterally from the mouth M3 of the user M are defined. As used herein, the term "downward" refers to the downward direction of the face, for example, the direction extending from the eyebrows toward the mouth, the downward direction of the face in a standing or sitting posture, or the vertical downward direction. The “mouth” refers to the mouth and the portion around the mouth, for example, the portion between the bottom of the nose and the chin M2.

As used herein, the term "lateral direction" refers to the lateral direction of the face, for example, the direction extending from one of the two eyes to the other, and the lateral direction of the face in a standing or sitting posture. Directional or horizontal direction. After defining the first straight line L1 and the second straight line L2, the first intersection C1 which is the intersection of the first straight line L1 and the second straight line L2 is detected (step of detecting the first intersection). The first intersection C1 may be the intersection of the perpendicular line drawn from the cheekbone M1 to the second straight line L2 and the second straight line L2.

Then, the second intersection C2, which is the intersection of the second straight line L2 and the contour M4 of the face of the user M, is detected (step of detecting the second intersection). By detecting the second intersection C2 and connecting the cheekbone M1 and the second intersection C2 with the third straight line L3, a right triangle T having the cheekbone M1, the first intersection C1 and the second intersection C2 as vertices is formed. To. In the present specification, the "right triangle" is not limited to the case where one angle of the triangle is exactly 90 °, and the angle is slightly deviated from 90 ° (for example, the angle of the angle is 80 °). The case where the temperature is 100 ° or less, etc.) is also included. After the right triangle T is formed, the length X of the line segment between the first intersection C1 and the second intersection C2, which is the base T1 of the right triangle T, or the cheekbone M1 and the second intersection C2 are connected. The angle θ formed by the third straight line L3 and the first straight line L1 which are the oblique sides T2 is calculated.

The length X and the angle θ correspond to the degree of inclination of the third straight line L3 with respect to the first straight line L1. Specifically, the larger the respective values of the length X and the angle θ, the larger the degree of inclination of the third straight line L3, and the smaller the respective values of the length X and the angle θ, the smaller the degree of inclination of the third straight line L3. .. The degree of inclination of the third straight line L3 with respect to the first straight line L1 corresponds to the fineness of the portion extending from the cheekbone M1 of the user M toward the jaw M2. That is, the larger the degree of inclination of the third straight line L3, the tighter the face from the cheekbone M1 toward the chin M2, and the smaller the degree of inclination of the third straight line L3, the closer the portion from the cheekbone M1 to the chin M2. It shows that it has a thick face with chin.

In the present embodiment, the height of the portion where the cheek of the pillow 1 touches, that is, the height of the second portion P2 is determined according to the degree of inclination of the third straight line L3 with respect to the first straight line L1. Specifically, the height of the second portion P2 is determined from the above-mentioned value of the length X or the value of the angle θ (step of determining the height). For example, the value of the length X is 0 mm or more and 25 mm or less. In the present embodiment, the value of the length X is 16 mm or more and 25 mm or less as type A, the value of length X is 6 mm or more and less than 16 mm as type B, and the value of length X is 0 mm or more and less than 6 mm as type C. Classify.

Then, in the case of type A, two height adjusting members 8 are housed in each second portion P2, and in the case of type B, one height adjusting member 8 is housed in each second part P2. In the case of type C, the height adjusting member 8 is not accommodated. As described above, the height of the pillow 1 is determined by determining the number of height adjusting members 8 to be accommodated in the second portion P2, and then a series of steps is completed.

Next, the pillow height determination measuring tool according to the present embodiment will be described with reference to FIGS. 4 and 5. As shown in FIGS. 4 and 5, the pillow height determining measuring tool 21 includes a frame portion 22 in which the face of the user M can be inserted, and a scale portion 23 displayed on the frame portion 22. .. The frame portion 22 has, for example, a rectangular frame shape, and the face of the user M is inserted inside the frame portion 22. The scale portion 23 is, for example, a scale in millimeters shown on each of the vertical side 22b and the horizontal side 22c forming the frame portion 22.

As an example, in the pillow height determination measuring tool 21, 0 is described in the lower left corner portion 21b of the rectangular frame-shaped frame portion 22, and numerical values corresponding to the distance from the corner portion 21b are the vertical side 22b and the horizontal side. It has a scale portion 23 described in each of 22c. For example, the face of the user M placed in the frame portion 22 is photographed by the camera R, and the camera R photographs the scale portion 23 of the frame portion 22 together with the face of the user M. The camera R may be a smartphone as an example.

Then, in the image of the face of the user M taken together with the scale portion 23, the first straight line L1 extending downward from the cheekbone M1, the second straight line L2 extending laterally from the mouth M3, and the second straight line L2 are used. The third straight line L3 extending from the second intersection C2, which is the intersection with the contour M4 of the face of the person M, to the cheekbone M1 is detected. For example, the first straight line L1 is detected as a straight line extending parallel to the vertical side 22b from the detected cheekbone M1, the second straight line L2 is detected as a straight line extending parallel to the horizontal side 22c from the detected mouth M3, and the third straight line L2 is detected. The straight line L3 is detected as a straight line extending from the second intersection C2 between the second straight line L2 and the detected facial contour M4 to the cheekbone M1.

As shown in FIG. 3, the above-mentioned right triangle T is obtained by detecting the first straight line L1, the second straight line L2, and the third straight line L3. Therefore, the length X of the line segment between the first intersection C1 and the second intersection C2, which is the base T1 of the right angle triangle T, or the third straight line L3, which is the oblique side T2 connecting the cheekbone M1 and the second intersection C2. It is possible to obtain the angle θ formed by the first straight line L1 and the first straight line L1.

Next, the pillow height determination method and the action and effect obtained from the pillow height determination measuring tool 21 according to the present embodiment will be described in detail. In the pillow height determination method according to the present embodiment, the height of the second portion P2 of the pillow 1, which is the portion where the user M's cheeks hit when the user M sleeps sideways on the pillow 1, is determined. In this pillow height determination method, a first straight line L1 extending downward from the cheekbone M1 of the user M facing the front and a second straight line L2 extending laterally from the mouth M3 of the user M facing the front are used. A third straight line L3 extending from the second intersection C2, which is the intersection of the second straight line L2 and the contour M4 of the face, to the cheekbone M1 is obtained.

The cheekbone M1, the first intersection C1 which is the intersection of the first straight line L1 and the second straight line L2, and the second intersection C2 which is the intersection of the second straight line L2 and the contour M4 of the face form a right triangle T. There is. In the pillow height determination method, the cheek of the pillow 1 hits from the length X between the first intersection C1 and the second intersection C2, or the angle θ formed by the third straight line L3 and the first straight line L1 forming the diagonal side. The height of the second part P2 is determined. The length X between the first intersection C1 and the second intersection C2 and the angle θ formed by the third straight line L3 and the first straight line L1 are both the third straight line with respect to the first straight line L1 extending downward from the cheekbone M1. It corresponds to the degree of inclination of L3, that is, the degree of inclination of the portion extending from the cheekbone M1 toward the jaw M2.

Specifically, when the length X is long or the angle θ is large, a thin face is shown that tightens from the cheekbone M1 to the jaw M2, and when the length X is short or the angle θ is small, the cheekbone M1 is used. It shows a thick face with Ella. Therefore, it is possible to determine whether the face of the user M is thin or thick by detecting the length X or the angle θ.

Therefore, by determining the height of the second portion P2 where the cheeks of the pillow 1 hit when sleeping sideways from the length X or the angle θ, a pillow 1 suitable for lying sideways according to the shape of the face of the user M is proposed. be able to. Further, in the pillow height determination method, since the shape of the face of the user M facing the front may be measured, it is not necessary to lay the user M on the bedding or the like. Therefore, it is possible to eliminate the need for a dedicated space for arranging the bedding and the like, and it is possible to realize space saving.

Further, the pillow 1 includes a first portion P1 on which the cheek of the user M is placed and a second portion P2 on which the portion from the cheek of the user M toward the chin M2 is placed, and the second portion with respect to the first portion P1. The height of P2 can be adjusted by the height adjusting member 8. That is, the height of the portion from the cheek to the chin M2 can be adjusted by the height adjusting member 8.

Therefore, for the user M with a thin face (for example, the user M in FIG. 2A) whose cheek to chin M2 is tight, the height of the second portion P2 is increased by the height adjusting member 8. However, for the user M with a thick face (for example, the user M in FIG. 2C), the second part P2 is lowered and the cheek to the chin M2 is stretched from the cheek to the chin M2. The contact area of the pillow 1 with respect to the portion facing toward can be increased. Since the pressure in the portion from the cheek to the chin M2 can be increased to relieve the pressure in the portion, it is possible to propose a pillow 1 suitable for lying sideways according to the shape of the face of the user M.

As a specific example, the face type of the user M is classified from the value of the length X or the value of the angle θ, and the number of height adjusting members 8 to be accommodated in the second portion P2 is determined according to the classified type. To do. In this way, by classifying the shape of the face of the user M into any of a plurality of types, the height of the second portion P2 can be changed more finely. Therefore, since it is possible to propose a pillow 1 in which the height of the second portion P2 is adjusted more finely according to individual differences, it is possible to propose a pillow 1 more suitable for lying sideways to the user M.

The pillow height determining measuring tool 21 has a first straight line L1 extending downward from the cheekbone M1 of the user M facing the front, a second straight line L2 extending laterally from the mouth M3 of the user M, and a second. A third straight line L3 extending from the second intersection C2, which is the intersection of the straight line L2 and the contour M4 of the user M's face, to the cheekbone M1 is detected. Therefore, a right triangle T including a first straight line L1 extending downward from the cheekbone M1, a second straight line L2 extending laterally from the mouth M3, and a third straight line L3 extending laterally from the second intersection C2 to the cheekbone M1 is formed. be able to.

Therefore, the length X from the first intersection C1 which is the intersection of the first straight line L1 and the second straight line L2 to the second intersection C2 which is the intersection of the second straight line L2 and the third straight line L3, or the third straight line L3. By obtaining the angle θ formed by the first straight line L1 and the first straight line L1, the height of the second portion P2 where the cheek of the pillow 1 hits can be determined in the same manner as the above-described pillow height determination method. As a result, the height of the second portion P2 where the cheeks of the face of the pillow 1 hit can be determined from the length X or the angle θ, so that the pillow 1 suitable for lying sideways according to the shape of the face of the user M can be obtained. I can make a suggestion.

Furthermore, since the shape of the face of the user M facing the front may be measured, the shape can be measured efficiently. That is, the shape of the face of the user M facing the front may be measured, and it is not necessary to lay the user M on the bedding or the like for the measurement. Further, since the bedding and the like for measurement can be eliminated, the space for measurement can be saved.

(Second Embodiment)
Next, the pillow height determining measuring tool 31 according to the second embodiment will be described with reference to FIGS. 6 and 7. In the following description, the description overlapping with the first embodiment described above will be omitted as appropriate. As shown in FIGS. 6 and 7, the pillow height determining measuring tool 31 has a scale member 32 located behind the user M. The scale member 32 has, for example, a plurality of vertical lines 32b and a plurality of horizontal lines 32c arranged in a grid pattern, and the vertical lines 32b are along the vertical direction and the horizontal lines 32c are along the horizontal direction on the wall W. It can be pasted. As an example, the scale member 32 may be graph paper.

For example, the face of the user M arranged in front of the scale member 32 is photographed by the camera R, and the camera R photographs the scale member 32 together with the face of the user M. Then, in the image of the face of the user M taken together with the scale member 32, the first straight line L1 extending downward from the cheekbone M1, the second straight line L2 extending laterally from the mouth M3, and the second straight line L2 are used. The third straight line L3 extending from the second intersection C2, which is the intersection with the contour M4 of the face of the person M, to the cheekbone M1 is detected.

For example, the first straight line L1 is detected as a straight line extending parallel to the vertical line 32b of the scale member 32 from the detected cheekbone M1, and the second straight line L2 is detected as a straight line extending parallel to the horizontal line 32c from the detected mouth M3. , The third straight line L3 is detected as a straight line extending from the second intersection C2 between the second straight line L2 and the detected facial contour M4 to the cheekbone M1.

As described above, in the pillow height determining measuring tool 31 according to the second embodiment, the first straight line L1 extending downward from the cheekbone M1, the second straight line L2 extending laterally from the mouth M3, and the cheekbone from the second intersection C2. A right triangle T including a third straight line L3 extending to M1 can be formed. Therefore, as in the first embodiment described above, the height of the second portion P2 where the cheeks of the face of the pillow 1 hit can be determined from the length X or the angle θ, so that it depends on the shape of the face of the user M. It is possible to propose a pillow 1 suitable for lying sideways. Then, since the shape of the face of the user M facing the front may be measured, the shape can be measured efficiently and the space for measurement can be saved.

The pillow height determination method and the embodiment of the pillow height determination measuring tool according to the present disclosure have been described above. However, the present disclosure is not limited to the above-described embodiments, and can be appropriately changed without changing the gist described in each claim. That is, the content and order of each step of the pillow height determination method, and the shape, size, material, number, and arrangement mode of each part of the pillow height determination measuring tool can be appropriately changed without departing from the above gist. Is.

For example, in the above-described embodiment, the pillow 1 including the pair of the first portion P1 and the pair of the second portion P2 has been described. However, the pillow height determination method and the pillow height determination measuring tool according to the present disclosure are also applicable to pillows other than pillow 1. That is, the shape, size, and material of the pillow to which the pillow height determination method and the pillow height determination measuring tool are applied can be appropriately changed. Further, the shape, size, material, number and arrangement mode of the height adjusting member are not limited to the above-described embodiment and can be appropriately changed. For example, the height adjusting member may have a shape other than the sheet shape.

Further, in the above-described embodiment, an example in which the face of the user M is photographed by the camera R and the camera R photographs the scale portion 23 or the scale member 32 together with the face of the user M has been described. In the case of this example, since a scale capable of measuring the length of each part of the face is photographed together with the face of the user M, the value of the length X or the angle θ of the right triangle T can be calculated based on the photographed scale. It will be possible.

The calculation of the value of the length X or the angle θ may be performed automatically from the image taken by the camera R, or may be performed manually. When the value of the length X or the angle θ is calculated manually, for example, it is not necessary to use the camera R using only the frame portion 22 or the scale member 32. As described above, the configuration of the pillow height determination measuring tool and each step of the pillow height determination method can be appropriately changed.

Further, in the above-described embodiment, the length X value is 16 mm or more and 25 mm or less is type A, the length X value is 6 mm or more and less than 16 mm is type B, and the length X value is 0 mm or more and less than 6 mm. An example of classifying as type C has been described. However, the method of classifying the types based on the value of the length X is not limited to the above example and can be appropriately changed. For example, a length X value of 15 mm or more may be classified as type A, a length X value of 5 mm or more and less than 15 mm as type B, and a length X value of less than 5 mm as type C.

(Example)
Next, an example of the pillow height determination method and the pillow height determination measuring tool according to the present disclosure will be described. The present disclosure is not limited to the examples described later. In the experiment according to the example, the lengths X of a plurality of subjects were measured by using the pillow height determination measuring tool 21 described above. Specifically, as shown in FIG. 4, the frame portion 22 of the pillow height determining measuring tool 21 and the camera R are arranged side by side on a desk forming a horizontal table. At this time, both the frame portion 22 and the camera R were arranged so as to stand vertically from the upper surface of the table. A mobile phone was used as the camera R.

In this experiment, a straight line extending perpendicularly from the apex of the cheekbone M1 to the upper surface of the table is aligned with the vertical side 22b of the frame portion 22, and a straight line extending parallel to the upper surface of the table from the end of the mouth is lateral to the frame portion 22. The face of the user M was inserted into the frame portion 22 so as to match the side 22c. With the frame portion 22 and the camera R arranged in this way and the face of the user M placed in the frame portion 22, the face is photographed by the camera R, and the length of the base of the right triangle T of the subject is taken from the photographed image. An experiment was conducted to find the X. This experiment was performed on 60 subjects, and the length X of each of the 60 subjects was calculated. As a result, the minimum value of the length X was 0 mm, and the maximum value of the length X was 25 mm.

After obtaining the length X from the 60 subjects as described above, the shape of the subject's face is determined by the type A in which the value of the length X is 16 mm or more and 25 mm or less, and the value of the length X is It was classified into either type B having a length of 6 mm or more and less than 16 mm, and type C having a length X value of 0 mm or more and less than 6 mm.

Then, three subjects were extracted from each of type A, type B, and type C, and experiments were performed to measure the body pressure distribution when laid on the pillow 1, calculate the maximum pressure value, and calculate the average pressure value. Went by. In this experiment, the body pressure distribution was measured, the maximum pressure value was calculated, and the average pressure value was calculated using a pressure distribution measuring device manufactured by Xsenser.

The respective length X values of the three type A subjects were 23 mm, 20 mm, and 20 mm (average 21 mm), and the respective length X values of the three type B subjects were 12 mm. It was 10 mm and 10 mm (average 10.7 mm), and the values of the lengths X of each of the three type C subjects were 5 mm, 0 mm, and 0 mm (average 1.7 mm).

The material of the contents of the part other than the first part P1 of the pillow 1 is polyethylene pipe and urethane foam, the material of the outer material of the pillow 1 is 70% cotton and 30% silk, and the first part P1 and the second part P2 of the pillow 1 The material of the contents was 100% polyester. The material of the lining of the pillow 1 was 65% polyester and 35% cotton, and the height adjusting member 8 was a pad having a thickness of 1 cm and made of urethane foam. In the experiment, the number of height adjusting members 8 (pads) was changed to 0, 1 or 2 for the type A subject, the type B subject, and the type C subject. went.

The results of the body pressure distribution in the above experiments are shown in FIG. In FIG. 8, in the body pressure distribution of the subject, a portion having a dark color indicates a portion having a high pressure value, and a portion having a light color indicates a portion having a low pressure value. As shown in FIG. 8, in the case of type A with a thin face having a length X of 16 mm or more, when the number of pads is 0 or 1, it can be seen that high pressure is applied to Z around the cheeks. .. On the other hand, when the number of pads is two and the second portion P2 is increased, the pressure applied to the Z around the cheek is reduced.

On the other hand, in the case of type C with a thick face whose length X is less than 6 mm, it can be seen that high pressure is applied to Z around the cheek when the number of pads is one or two. On the other hand, when the number of pads is set to 0 and the second portion P2 is lowered, the pressure applied to the Z around the cheek is reduced. Further, in the case of type B having an intermediate thickness of 6 mm or more and less than 16 mm in length X, it can be seen that the pressure applied to Z around the cheek is reduced when the number of pads is one. As described above, it was found that the pressure applied to Z around the cheek can be reduced by adjusting the number of pads according to the length X.

FIG. 9 is an experimental result showing the relationship between the number of pads and the maximum pressure value for each type A subject, type B subject, and type C subject. As shown in FIG. 9, in the case of type A with a thin face having a length X of 16 mm or more, the maximum pressure value is the smallest when the number of pads is two, and the maximum pressure value at this time is 18 (mmHg). ). In the case of type B having a length X of 6 mm or more and less than 16 mm, the maximum pressure value was the smallest when the number of pads was one, and the maximum pressure value at this time was about 15 (mmHg).

In the case of type C with a thick face having a length X of less than 6 mm, the maximum pressure value was the smallest when the number of pads was 0, and the maximum pressure value at this time was about 13 (mmHg). As described above, it was found that the maximum pressure value can be reduced by adjusting the number of pads according to the length X.

FIG. 10 is an experimental result showing the relationship between the number of pads and the average pressure value for each type A subject, type B subject, and type C subject. As shown in FIG. 10, in the case of type A with a thin face having a length X of 16 mm or more, the average pressure value was the smallest at about 8 (mmHg) when the number of pads was two. In the case of type B having a length X of 6 mm or more and less than 16 mm, the average pressure value was the smallest and was about 8 (mmHg) when the number of pads was one. In the case of type C with a thick face having a length X of less than 6 mm, the average pressure value was the smallest, about 6 (mmHg), when the number of pads was 0.

As described above, it was found that the average pressure value can be reduced by adjusting the number of pads according to the length X. Further, from the experimental results according to the above examples, when the value of the length X of the right triangle T is large (the portion from the cheek to the chin is thin), the number of pads is increased and the value of the length X is small (cheek). It was found that it is possible to obtain the optimum height of the second portion P2 for the subject by reducing the number of pads when the portion from the cheek to the chin is thick).

1 ... Pillow, 2 ... Long side, 2b ... 1st long side, 2c ... 2nd long side, 3 ... Short side, 3b ... 1st short side, 3c ... 2nd short side, 5 ... 1st partition, 6 ... 2nd partition, 8 ... Height adjusting member, 10 ... Side, 21,31 ... Measuring tool for determining pillow height, 21b ... Corner, 22 ... Frame, 22b ... Vertical side, 22c ... Horizontal side, 23 ... Scale part, 32 ... Scale member, 32b ... Vertical line, 32c ... Horizontal line, C1 ... 1st intersection, C2 ... 2nd intersection, D1 ... 1st direction, D2 ... 2nd direction, L1 ... 1st straight line, L2 ... 2nd straight line, L3 ... 3rd straight line, M ... user, M1 ... cheekbone, M2 ... jaw, M3 ... mouth, M4 ... contour, P1 ... 1st part, P2 ... 2nd part, R ... camera, T ... Right angle triangle, T1 ... base, T2 ... diagonal side, W ... wall, θ ... angle.

Claims (2)

1. It is a pillow height determination method for determining the height of the portion of the pillow where the user's cheeks touch when the user sleeps sideways on the pillow.
   A step of detecting a first intersection, which is an intersection of a first straight line extending downward from the user's cheekbone facing the front and a second straight line extending laterally from the user's mouth.
   A step of detecting a second intersection, which is an intersection of the second straight line and the contour of the user's face, and
   A step of detecting the length between the first intersection and the second intersection, or the angle formed by the third straight line connecting the cheekbone and the second intersection and the first straight line.
   The step of determining the height of the portion where the cheek touches from the length or the angle, and
   Pillow height determination method.
2. It is a pillow height measuring tool used to determine the height of the part where the cheek of the pillow user touches.
   The first straight line extending downward from the user's cheekbone facing the front,
   A second straight line extending laterally from the user's mouth,
   A third straight line extending from the intersection of the second straight line and the contour of the user's face to the cheekbone,
   A measuring tool for determining pillow height to detect.

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