JP6763507B2 - Pillow manufacturing method and pillow manufacturing equipment - Google Patents

Description

The present invention relates to a pillow manufacturing method and a pillow manufacturing apparatus for manufacturing a pillow optimal for a subject.

For example, pillows are indispensable bedding for comfortable sleep, and medical personnel have proposed that the posture of sleeping on the pillow in the supine position is close to the natural standing posture.

The conventional pillow manufacturing method measures the one-dimensional or two-dimensional shape of the subject's neck and occipital region in a standing position, and pillows so as to fill the gap between the mattress (bedding) and the subject's neck and occipital region. Determine the shape of. Therefore, there is no space between the pillow and the subject's neck. The above-mentioned measurement of the standing posture is realized by measuring the dimensions of the neck and the back of the head with respect to the extension of the back with the face tilted by about 5 ° with respect to the extension of the back of the subject (see: Patent Document). 1, 2).

Jikkenhei 6-87802 Japanese Unexamined Patent Publication No. 2006-334299

However, according to the above-mentioned conventional pillow manufacturing method, since the shape of the pillow is determined so that the pillow contacts the neck of the subject, there is a problem that the optimum sleeping comfort of the subject cannot be actually obtained. is there. In addition, based on the one-dimensional shape or two-dimensional shape of the subject's neck and back of the head in the standing posture, the subject selects the optimum pillow from a plurality of pillows in which the filling material is adjusted to change the pillow rigidity. As a result, the production of pillows becomes complicated, and as a result, there is also a problem that the production cost of pillows is high.

To solve the problems described above, the pillow manufacturing method according to the present invention extracts a ridge line curve of the subject's neck and back of the head during standing posture, calculated as the most concave portion of the neck recess depth for occipital Neck dent depth calculation process, target pillow neck height calculation process corresponding to the subject's neck according to the neck dent depth only , and cervical dent depth calculation process The target pillow occipital height calculation process corresponding to the subject's occipital region and the pillow cervical height of the pillow cervical position and occipital position corresponding to the subject's neck and occipital region And the pillow back head height reaches the target pillow neck height and the target pillow back head height, and the load at the pillow neck position and back head position reaches the predetermined neck load and the predetermined back head load larger than the predetermined neck load. It is provided with a filler filling step of filling the pillow with a filler, and a design gap having a height corresponding to the depth of the neck dent is provided between the neck of the subject and the neck position of the pillow . actually sleep subject cervix disappeared voids in design in the posture of the subject is obtained by the so that to fit the neck position of the pillow.

Further, the pillow manufacturing apparatus according to the present invention has a plurality of rods having a tip pressed against the neck and the back of the head of the subject in a standing position and a rear end with a marker, and each rod is parallel to each other in two dimensions. A rod holding mechanism that holds the pillows in an array, a camera that captures the markers of each rod, a filler filling unit for filling the pillow with filler, and a neck from the position of each marker photographed by the camera to the back of the head of the subject. It is equipped with a control unit that calculates the depth of the recess and controls the filler filling unit based on the depth of the neck recess, and the length of the rod is different so that the markers of each rod photographed by the camera do not overlap. A design gap with a height corresponding to the depth of the cervical dent is provided between the subject's neck and the position of the pillow's neck, and the design gap disappears in the subject's actual sleeping posture. The subject's neck is adapted to fit the neck position of the pillow .

According to the present invention, since a gap is provided between the neck of the subject and the neck of the pillow according to the depth of the neck dent with respect to the back of the head of the subject, the optimum sleeping comfort of the subject can be obtained. In addition, regardless of the type of filler (magnitude of rigidity), the shape of the pillow is determined only by the depth of the neck recess with respect to the back of the head of the subject, so that the pillow manufacturing is simple, and as a result, the pillow manufacturing cost is also high. Can be lowered. Further, since the filler is filled until the subject's favorite predetermined neck load and predetermined occipital load are reached, the pillow can be manufactured with the subject's favorite filler (magnitude of rigidity).

It is a figure explaining the cervical dent depth with respect to the occipital region in the mid-sagittal plane (left-right central plane) of the standing posture of the subject according to this invention. It is a figure which shows the relationship between the supine posture of a subject and a pillow for demonstrating the principle of this invention. It is a graph showing the relationship between the neck height H _n of the subject of the neck recess depth d and optimal pillow FIG. It is a graph which shows the relationship between the neck dent depth d of the subject of FIG. 2 and the occipital height H _h of an optimum pillow. It is a graph which shows the relationship between the neck dent depth d of the subject of FIG. 2 and the optimum pillow difference ΔH = H _n −H _h . It is a photograph which shows the embodiment of the pillow manufacturing apparatus which concerns on this invention. It is a photograph which shows the actual state of the pillow manufacturing apparatus of FIG. It is a photograph for demonstrating the standing posture of the subject by the pillow manufacturing apparatus of FIG. It is a perspective view which shows the detail of the filler filling unit of FIG. It is a flowchart for demonstrating the operation of the control unit of FIG. It is a figure which shows the S-shaped curve of the mid-sagittal plane in step 1102 of FIG. It is a detailed flowchart of the mid-sagittal plane calculation step of FIG. It is a photograph which shows the example of the camera image acquired in step 1301 of FIG. It is binary data of the color marker extracted in step 1302 of FIG.

FIG. 1 is a diagram illustrating a neck depression depth d with respect to the occipital region in the mid-sagittal plane (left and right central planes) of the standing posture of the subject according to the present invention.

In FIG. 1, 11 is the neck of subject 1, 12 is the back of the head of subject 1, and the cervical recess depth d is the neck 11 of subject 1 and the ridge curve S of the back of the head 12 with respect to the back of the head 12. It is defined by the depth of the most concave part.

FIG. 2 is a diagram showing a state in which a subject is sleeping in a supine position for explaining the principle of the present invention.

In FIG. 2, subject 1 is sleeping in a supine position on a pillow 3 on a mattress 2. At this time, the pillow shape P of the pillow 3 filled with the filler F has a gap between the pillow 3 and the neck 11 of the subject 1 having a difference D corresponding to the neck dent depth d and the subject. It is determined to be in contact with the back of the head 12 of 1. Therefore, in order to produce the optimum pillow shape P, the neck height H _n and the occipital height H _h are adjusted with the respective loads of the neck 11 and the occipital region 12 of the subject 1 being 0.85 kgf and 2.12 kgf. We asked 3 to 7 subjects to select the pillow that they felt most comfortable with. This selection method was a dichotomy. In other words, we asked the subjects to select the pillow that best suits them by comparing and searching for the best pillow at the moment and pillows of different shapes one after another. These selection results will be described with reference to FIGS. 3 to 6.

FIG. 3 is a graph showing the relationship between the neck dent depth d of the subject 1 of FIG. 2 and the optimal neck height H _n of the pillow 3. As shown in FIG. 3, the neck height H _n of the pillow 3 is a regression line:
H _n (mm) = -0.25d + 73 (1)
Contribution R ² = 0.26
In it represented, in this case, the contribution R ² in the neck recess depth d was great.

FIG. 4 is a graph showing the relationship between the neck dent depth d of the subject 1 of FIG. 2 and the optimum occipital height H _h of the pillow. As shown in FIG. 4, the occipital height H _h of the pillow 3 is a regression line:
H _h (mm) = 0.15d + 43 (2)
Contribution R ² = 0.04
In it represented, in this case, the contribution R ² in the neck recess depth d is smaller.

FIG. 5 is a graph showing the relationship between the neck dent depth d of the subject 1 of FIG. 2 and the difference ΔH = H _h −H _n of the optimum pillow 3. As shown in FIG. 5, the difference ΔH of the pillow 3 is the regression line:
ΔH (mm) = −0.40d + 31 (3)
Contribution R ² = 0.32
In it represented, in this case, the contribution R ² in the neck recess depth d was great.

As described above, the neck height H _n and the contribution R ² to the difference ΔH of the neck depression depth d are significant values, and therefore the neck depression depth d and the neck height H _n and the difference D ( There is a correlation with = d−ΔH). On the other hand, although the contribution ^{R 2} for occipital height _{H h} of the neck recess depth d is small, the difference between the occipital height optimal pillows 3 _{H h} and neck height _{H n ΔH (= H} h -H _{Since n} ) has a correlation with the neck dent depth d as shown in FIG. 5, it is considered that the equation (2) is still effective. Therefore, it is considered that there are a neck height H _n and an occipital height H _h that provide an optimum sleeping comfort with respect to the neck dent depth d. At this time, a difference D = d−ΔH corresponding to the neck dent depth d occurs between the neck 11 of the subject 1 and the pillow by design. However, in the actual sleeping posture of the subject, the load of the occipital region 12 is applied to the occipital region of the pillow, so that the occipital region of the pillow is deformed and the occipital region 12 of the subject sinks. As a result, the subject's neck 11 fits into the neck portion of the pillow.

FIG. 6 is a photograph showing an embodiment of the pillow manufacturing apparatus according to the present invention (see: Japanese Patent Application No. 2014-215571 and drawings). However, in order to facilitate the explanation of the operation, the pillow manufacturing device of FIG. 6 is made smaller than the actual pillow manufacturing device shown in FIG. 7 for the subject of the original large pillow. In FIG. 7, a rod group 101 composed of vertical × horizontal = 40 × 5 rods R is provided, and a color marker M is attached to the rear end of the rods R. Further, an electric pump 106 for bringing the rod holding mechanism 102 into a rod sliding state and a rod fixed state (brake state) is connected to the rod holding mechanism 102. Further, two cameras 104 for photographing the color marker M are provided. In this case, the upper camera 104 captures the upper half color marker M, and the lower camera 104 captures the lower half color marker M.

In FIG. 6, the rod group 101 is composed of 5 × 5 rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R, which are made of a rigid material such as stainless steel. _It is composed of ₅₂ , ..., R ₅₅ , and these rods are held by the rod holding mechanism 102 in a two-dimensional manner at equal intervals. Rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ ,, ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ The right tip of FIG. 6 is the pillow shown in FIG. Pressed against the subject's neck and occipital region, while after rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ . Specific colors such as red color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ are attached to the ends. In addition, two or more specific colors, for example, red and blue may be alternately attached to the marker.

The rod holding mechanism 102 is supported by the frame mechanism 103. Frame mechanism 103 rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., Color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , at positions facing M ₅₅ . ..., M ₂₅ ; ...; A camera 104 for photographing M ₅₁ , M ₅₂ , ..., M ₅₅ is provided, and the camera 104 is connected to a control unit 105 composed of a microcomputer.

Rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ ,, ..., R ₂₅ ; ...; The lengths of R ₅₁ , R ₅₂ , ..., R ₅₅ are the color markers M ₁₁ taken by the camera 104. , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ are different so that they do not overlap. For example
L ₁ <L ₂ <L ₃ <L ₄ <L ₅
L _2- L ₁ = L _3- L ₂ = L _4- L ₃ = L _5- L ₄ ≧ ΔL
However, L ₁ is the length of rods R ₁₁ , R ₁₂ , ..., R ₁₅ ...
L ₂ is the length of rods R ₂₁ , R ₂₂ , ..., R ₂₅ ,
L ₃ is the length of rods R ₃₁ , R ₃₂ , ..., R ₃₅ ,
L ₄ is the length of rods R ₄₁ , R ₄₂ , ..., R ₄₅ ,
L ₅ is the length of rods R ₅₁ , R ₅₂ , ..., R ₅₅ ,
ΔL is set as a positive value determined by the measurement target. As a result, the lengths of the rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R _{55 become} larger as they are farther from the camera 104. The color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ captured by the camera 104 will not overlap. ..

The control unit 105 also controls the filler filling unit 107 for filling the pillow with the filler.

FIG. 9 is a perspective view showing the details of the filler filling unit 107 of FIG. In FIG. 9, the filler filling unit 107 is provided on the pedestal 1070 for supporting the pillow 3, the electric cylinder 1071 provided on the pedestal 1070 for defining the pillow neck height of the pillow 3, and the electric cylinder 1071. A load cell 1072 and an indenter 1073 provided at the lower end for detecting the load at the pillow neck position of the pillow 3, an electric cylinder 1074 provided on the pedestal 1070 for defining the height of the back of the pillow of the pillow 3, and electric power. A load cell 1075 and an indenter 1076 provided at the lower end of the cylinder 1074 for detecting the load at the back of the pillow of the pillow 3 and a filler such as buckwheat husks and a flexible resin pipe are inserted from the opening of the pillow 3 (not shown). It is composed of a filling machine 1077 for filling.

In the filler filling unit 107 of FIG. 9, the operator manually fixes the positions of the electric cylinders 1071 and 1074 to the neck position and the occipital position of the pillow 3 corresponding to the neck and occipital region of the subject as shown by arrows. Keep it. The control unit 105 align the bottom of the indenter 1073,1076 electric cylinder 1071,1074 target neck height _{H n} ', the target occipital height _{H h',} pillows neck height of the neck position and occipital position and pillow occipital height target neck height H _{n 'and} the target occipital height H _h' in the neck position and a predetermined neck load load occipital position e.g. 0.85kgf and predetermined occipital load reaches vital pillow 3 For example, the pillow 3 is filled with the filler through the opening (not shown) of the pillow 3 until it reaches 2.12 kgf. Each load can be detected by receiving the output signals of the load cells 1072 and 1075. After that, the opening of the pillow 3 is closed to fix the shape of the pillow 3.

FIG. 10 is a flowchart for explaining the operation of the control unit 105 of FIG. This flowchart is stored in the read-only memory (ROM) or the flash memory of the control unit 105. Further, before the operation of the control unit 105, the operator turns off the electric motor 106 and in the rod sliding state of the rod holding mechanism 102, the rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R. ₂₅ ; ...; The tips of R ₅₁ , R ₅₂ , ..., R ₅₅ are pressed against the back of the head and neck of the subject of the pillow, and then the electric motor 106 is turned on to fix the rod of the rod holding mechanism 102 (brake state). Then, with the camera 104, rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ , the rear end color markers M ₁₁ , M. ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ are photographed to obtain the camera image shown in FIG.

First, in step 1101, the mid-sagittal plane (left-right central plane) of the subject 1 of the pillow 3 is calculated. The mid-sagittal plane calculation step 1101 will be described later.

Next, in step 1102, the ridgeline curves S of the neck 11 and the occipital region 12 of the subject 1 shown in FIG. 11 are extracted from the mid-sagittal plane of the subject 1 calculated in step 1101, and the occipital region 12 in the ridgeline curve S. The depth of the most concave portion of the neck portion 11 with respect to the neck portion 11 is defined as the neck recess depth d.

Next, in step 1103, the target neck height of the pillow 3 _{H n} 'and the target occipital height _{H h'} a (1) is calculated by using the expression (2). That is,
H _n '(mm) ← -0.25d + 73
H _h '(mm) ← 0.15d + 43

The target neck height H _{n 'and} the target occipital height H _h' is generally Gotoku then expressed.
H _n '(mm) ← αd + β
H _h '(mm) ← γd + δ
However, α, β, γ, and δ are constants that satisfy | α |> | γ | and β> δ, and change according to the cervical load and the occipital load. As a result, a gap having a height corresponding to the neck dent depth d is formed between the neck of the subject 1 and the pillow. The cervical load and the occipital load are, for example, 0.85 kgf and 2.12 kgf for Japanese adults.

Next, in step 1104, filling the filler F into the pillow 3 based on the target neck height H _{n 'and} the target occipital height H _h' which is calculated at step 1103. That is, the control unit 105 is the target neck height _{H n} of the position of each indenter 1073,1076 electric cylinder 1071,1074 the electric cylinder 1071,1074 drives of the filling material filling unit 107 ', the target occipital height _{H h} 'Fit to. Then, the neck position and the pillow neck height and the pillow occipital height target pillow neck height H _{n 'and} the target pillow occipital height H _h' to reach vital pillow neck position and the pillow occipital position of occipital position The pillow 3 is filled with the filler F from the filling machine 1077 until the load of the above reaches a predetermined neck load such as 0.85 kgf and a predetermined back head load such as 2.12 kgf. Also in this case, each load can be detected by receiving the output signals of the load cells 1072 and 1075. After that, the opening of the pillow 3 is closed and fixed.

Then, at step 1105, the routine of FIG. 10 ends.

Next, the mid-sagittal plane calculation step 1101 of FIG. 10 will be described with reference to FIG.

In step 1301, the camera image shown in FIG. 13 is acquired from the camera 104.

Next, in step 1302, from the specific colors of the color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ , FIG. The color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ as the binary data shown in the above are extracted.

Next, in step 1303, the number of color markers M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ is a predetermined number, for example. It is determined whether or not it is 25. If the rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ are operating normally, the number of color markers is 25. Therefore, only when the number of color markers is 25, the process proceeds to step 1304, and in other cases, the process proceeds to step 1308 and an error occurs.

In step 1304, the coordinates of the center of gravity of each color marker M ₁₁ , M ₁₂ , ..., M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ are calculated.

Next, in step 1305, the tip coordinates of rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ are set in step 1304. Calculated centroid coordinates and rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ , predetermined lengths L ₁₁ , L ₁₂ , ..., L ₁₅ ; L ₂₁ , L ₂₂ , ..., L ₂₅ ; ...; L ₅₁ , L ₅₂ , ..., L ₅₅ .

Next, in step 1306, the subject is based on the tip coordinates of rods R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R _55. Interpolate the mid-sagittal plane of.

Then, in step 1307, the process returns to step 1102 in FIG.

As described above, only obtain a neck recessed to give a depth d target neck height of the pillow 3 H _{n 'and} the target occipital height H _h' for occipital subject, the target value at a predetermined load condition H _n ' The amount of filler such as buckwheat husks, flexible resin pulp, etc. can be adjusted so as to achieve and H _h ', and as a result, the pillow shape and pillow rigidity of each subject can be realized. Therefore, it is not necessary to compare and select a plurality of pillows for each subject as in the conventional case.

Thirteen subjects of different ages, genders and body types experienced the pillows manufactured by the pillow manufacturing method and apparatus according to the present invention in the supine position. As a result of this experience, 11 subjects answered that they were comfortable to sleep. The occipital region of the skull was flat in the two subjects who answered that they were uncomfortable to sleep.

It should be noted that the present invention may apply any modification of the self-evident scope of the above-described embodiment.

1: Subject 11: Neck 12: Back of the head S: Ridge curve H _n : Neck height H _n ': Target neck height H _h : Back of the head height H _h ': Target back of the head height F: Filler 101: Rod group R, R ₁₁ , R ₁₂ , ..., R ₁₅ ; R ₂₁ , R ₂₂ , ..., R ₂₅ ; ...; R ₅₁ , R ₅₂ , ..., R ₅₅ : Rod 102: Rod holding mechanism 103: Frame mechanism 104 : Camera 105: Control unit 106: Electric pump 107: Filler filling unit 1070: Pedestal 1071: Electric cylinder 1072: Load cell 1073: Indenter 1074: Electric cylinder 1075: Load cell 1076: Indenter 1077: Filler M ₁₁ , M ₁₂ , ... , M ₁₅ ; M ₂₁ , M ₂₂ , ..., M ₂₅ ; ...; M ₅₁ , M ₅₂ , ..., M ₅₅ : Color marker

Claims (9)

A cervical dent depth calculation step of extracting the ridgeline curves of the subject's neck and occipital region in a standing posture and calculating the most concave portion with respect to the occipital region as the cervical dent depth.
A target pillow neck height calculation step for calculating a target pillow neck height corresponding to the subject's neck according to only the neck dent depth, and a step of calculating the target pillow neck height.
A target pillow occipital height calculation step for calculating the target pillow occipital height corresponding to the subject's occipital region only according to the neck dent depth, and
The pillow neck height and pillow occipital height of the pillow corresponding to the subject's neck and occipital region reach the target pillow neck height and the target pillow occipital height, and the pillow The subject is provided with a filler filling step of filling the pillow with a filler until the load at the neck position and the occipital position of the neck reaches a predetermined cervical load and a predetermined occipital load larger than the predetermined cervical load. A design gap having a height corresponding to the depth of the neck dent is provided between the neck and the neck position of the pillow, and the design gap disappears in the actual sleeping posture of the subject. A pillow manufacturing method in which the neck of the subject is fitted to the neck position of the pillow. In the target pillow neck height calculation step, the target pillow neck height is calculated using the first linear function of the neck recess depth.
The pillow manufacturing method according to claim 1, wherein the target pillow occipital height calculation step calculates the target pillow occipital height using a second linear function of the neck recess depth. The first linear function is
H _n '(mm) = αd + β
The second linear function is
H _h '(mm) = γd + δ
And
However, H n _'is the target pillow neck height,
H _{h'is the} target pillow occipital height,
d is the neck dent depth,
The pillow manufacturing method according to claim 2, wherein α, β, γ, and δ are constants that satisfy | α |> | γ |, β> δ. Multiple rods with a tip pressed against the subject's neck and occipital region in a standing position and a rear end with a marker.
A rod holding mechanism that holds the rods arranged in parallel in two dimensions,
A camera that photographs the marker of each rod, and
A filler filling unit for filling pillows with filler,
It is provided with a control unit that calculates the neck dent depth with respect to the back of the head of the subject from the position of each marker photographed by the camera and controls the filler filling unit based on the cervical dent depth.
The lengths of the rods are different so that the markers of the rods taken by the camera do not overlap , depending on the depth of the neck recess between the subject's neck and the pillow's neck position. A pillow manufacturing device in which a design gap having a height is provided so that the design gap disappears in the actual sleeping posture of the subject and the neck of the subject fits the neck position of the pillow. .. The pillow manufacturing apparatus according to claim 4, wherein the length of the rod is larger as the length is farther from the camera. The pillow manufacturing apparatus according to claim 4 or 5, wherein the length of the rod is different for each row in which the distance is relatively different from the camera in the two-dimensional arrangement of the rod. The pillow manufacturing apparatus according to claim 4, wherein the marker is a color marker. The marker is a color marker and
The pillow manufacturing apparatus according to claim 6, wherein at least two adjacent rows of color markers having different distances with respect to the camera have different colors. The filler filling unit is
A pedestal to support the pillow and
A first electric cylinder provided on the pedestal and defining the pillow neck height at the neck position of the pillow, and
A first load detecting means provided at the lower end of the first electric cylinder and for detecting a load at the neck position of the pillow,
A second electric cylinder provided on the pedestal and defining the height of the occipital region of the pillow at the position of the occipital region of the pillow,
A second load detecting means provided at the lower end of the second electric cylinder for detecting the load at the back of the head of the pillow, and
The pillow manufacturing apparatus according to any one of claims 4 to 8, further comprising a filling machine for filling the pillow with a filler.