WO2004084679A1 - 座布団およびその評価方法 - Google Patents
座布団およびその評価方法 Download PDFInfo
- Publication number
- WO2004084679A1 WO2004084679A1 PCT/JP2003/012363 JP0312363W WO2004084679A1 WO 2004084679 A1 WO2004084679 A1 WO 2004084679A1 JP 0312363 W JP0312363 W JP 0312363W WO 2004084679 A1 WO2004084679 A1 WO 2004084679A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cushion
- evaluation
- tilt angle
- area
- pelvic tilt
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/16—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats of legless type, e.g. with seat directly resting on the floor; Hassocks; Pouffes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C15/00—Other seating furniture
- A47C15/004—Seating furniture for specified purposes not covered by main groups A47C1/00 or A47C9/00
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/08—Fluid mattresses or cushions
- A47C27/086—Fluid mattresses or cushions with fluid-like particles, e.g. filled with beads
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/12—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton
- A47C27/122—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with fibrous inlays, e.g. made of wool, of cotton with special fibres, such as acrylic thread, coconut, horsehair
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/021—Detachable or loose seat cushions
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions
Definitions
- the present invention relates to a cushion for providing a correction of a posture of a human body in a floor seat, wi:
- Patent Document 1 Japanese Utility Model Publication No. 60-9706 2 (page 1)
- Patent Document 2 Japanese Patent Application Laid-Open No. H11-155556 (pages 2 to 3) According to the above-mentioned prior art, when the user sits for a long time, The elastic repulsive force of the hard material has the disadvantage of causing muscle fatigue.In particular, if the shape does not fit the buttocks, there is a problem that the area for supporting the load is small, and it is not possible to withstand sitting .
- the present invention has been made based on the above problem, and as a result of obtaining based on many ergonomic experimental data, it is possible to maintain the spine in a correct posture (maintain a spine S-curve).
- the rear part of the cushion is made thicker so that the part that touches the buttocks is higher than the front side where the legs are assembled. It has a variable shape that fits easily, so it is hard to cause muscle fatigue even when sitting for a long time It aims to provide a cushion and its evaluation method.
- the invention according to claim 1 divides the inside of the cushion cushion into a buttocks support area and a leg assembly area, and fills the buttocks support area with cork chips.
- the hard foam resin layer has a three-layer structure surrounded by a soft foam resin layer, and the upper surface of the buttocks support area promotes the pelvis to lean forward. It is characterized by a thick structure that slopes toward the upper surface.
- the invention according to claim 2 relates to the cushion according to claim 1, wherein the hard foamed resin layer is a plate-shaped hard polyurethane layer, and the soft foamed resin layer is It is characterized by being a flexible foamed polyester layer.
- the invention according to claim 3 relates to the cushion according to claim 1 or 2, wherein the forward inclination angle of the upper surface of the buttocks support region is 5 to 30 degrees on average. It is characterized by
- the cushion according to any one of the first to third aspects, wherein the filling density of the cork chip (the space occupancy in the buttocks support area) is provided. Rate)
- the invention described in claim 5 relates to the cushion according to any one of claims 1 to 4, wherein the shape and dimensions of the cushion are based on a heart-shaped shape.
- the wide area at the top is a thick buttocks support area, and the narrow area at the bottom is a legged area.
- the area for women is larger than that for men.
- the invention described in claim 6 is an evaluation of the cushion described in any one of claims 1 to 5, wherein the measurement result of the pelvis inclination angle at the time of short-time sitting, the VTR Sensory evaluation results on imaging and sitting comfort, pelvic tilt angle fluctuations during long-term sitting, VTR imaging, simulation based on pelvic tilt angle frequency analysis and fatigue site survey results, and questionnaire surveys of various groups such as Westerners It is characterized in that evaluation is performed including information such as point information. Further, the invention described in claim 7 relates to the evaluation method of the cushion according to claim 6, wherein the pelvic tilt angle measurement is performed by applying a tilt angle sensor and a belt to a predetermined number of subjects. It is characterized by the relative comparison of the pelvic tilt angle of a commercially available cushion with a tatami cushion when seated.
- the invention described in claim 8 relates to the cushion evaluation method according to claim 6, wherein the sensory evaluation results relating to the seat comfort are obtained by distributing the obtained evaluation item data.
- the feature is to conduct a subject's subjective evaluation by subjecting the data to a radar chart using the factors aggregated using the analysis method.
- the invention according to claim 9 relates to the evaluation method of the cushion according to claim 6, wherein the fluctuation of the pelvic tilt angle at the time of sitting for a long time is 20 minutes after the start of measurement. After 40 minutes, measurement and evaluation are performed on the set burden site.
- the invention according to claim 10 relates to the evaluation method of the cushion according to any one of claims 6 to 9, wherein the weekly analysis of the pelvic tilt angle fluctuation is performed. It is characterized by performing frequency analysis on the pelvic tilt angle data using a time-series analysis model formula and performing time-lapse evaluation.
- FIG. 1 is a diagram showing a cushion according to an embodiment of the present invention, (a) is an overall perspective view, (b) is a side sectional view,
- FIG. 2 is a plan view of the cushion shown in FIG. 1,
- FIG. 3 is a diagram showing a use state of the cushion shown in FIG. 2,
- FIG. 4 is a diagram showing a comparison of the pelvic inclination angle between the cushion shown in FIG. 1 and the conventional example
- FIG. 5 is a diagram of a radar chart showing sensory evaluation results of the cushion shown in FIG. Yes
- Fig. 6 shows the results of sensory evaluation by gender for the comfort of stretching the back of the cushion shown in Fig. 1 y
- FIG. 4 is a diagram showing a comparison of the pelvic inclination angle between the cushion shown in FIG. 1 and the conventional example
- FIG. 5 is a diagram of a radar chart showing sensory evaluation results of the cushion shown in FIG. Yes
- Fig. 6 shows the results of sensory evaluation by gender for the comfort of stretching the back of the cushion shown in Fig. 1 y
- FIG. 4 is a diagram showing a comparison of the pelvic inclination angle between the cushion shown in FIG. 1 and the conventional example
- FIG. 5 is a diagram of a radar chart showing sensory evaluation results of the cushion shown in FIG. Yes
- Fig. 6 shows the results of sensory evaluation by gender for
- FIG. 7 is a diagram of the results of sensory evaluation by gender for the sitting comfort of the cushion shown in Fig. 1
- FIG. 8 is a diagram showing the change over time of the pelvic front-rear inclination angle when sitting on the cushion shown in FIG. 1 for a long time
- FIG. 9 is a diagram showing the time-dependent change of the pelvic front-rear inclination angle by the young subject of the cushion shown in FIG.
- FIG. 10 is a diagram showing the frequency analysis results of the pelvic front-back inclination angle of the cushion shown in FIG. 1
- FIG. 11 is a diagram showing the fatigue site adjustment of the cushion shown in FIG. Oh y
- FIG. 12 is a view showing the subjective evaluation of the cushion shown in FIG. 1 by Westerners. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 (a) shows an overall perspective view
- FIG. 1 (b) shows a side sectional view
- the cushion of the present invention includes a cushion 1, a buttocks support area 1A, and legs.
- the cork tip 2 is filled directly or with an inner bag in the buttocks support area 1A, and the rigid foam resin layer 3 is soft-foamed in the leg area 1B.
- the upper surface of the buttocks support region 1A is inclined toward the upper surface of the legged region 1B so as to encourage the pelvis to lean forward. Has become.
- the thickness of the buttocks support region is 6 cm on average.
- the hard foamed resin layer 1A uses a plate-shaped hard polyurethane layer as an actual material, and the soft foamed resin layer 1b is a soft foamed polyester layer.
- the forward tilt angle of the upper surface of the buttocks support region 1A be 5 to 30 degrees as an average value.
- the packing density of the cork chips space occupancy in the buttocks support area
- the chip diameter should be about 0.2 cm on average.
- alternative materials such as artificial cork, which has recently been struggled, may be used.
- a cushions for women and B cushions for men are shown in A and B of the 2nd country.
- the shape and dimensions of the cushions have been devised in consideration of gender differences. This usually means that the woman is in a sitting position or with her legs bent to both sides. This is because there are many re-bending postures, and men have many crosses.
- a newly developed tatami environment is constructed by assuming a tatami environment assuming a long-term sitting, and analyzing the pelvic tilt angle fluctuation data using a time-series analysis AR model (autoreguressive model).
- Product and product lineup of cushions (Ergo Za buton: trade name)
- the Interview configuration is performed to verify.
- the tilt angle sensor was attached using a belt so as to be located above the iliac bone of the subject.
- the size of the tilt angle sensor is 36 mm square, weighs 50 g, and is a small i5.
- the measurement error is ⁇ 0.5 degrees
- the measurement data is A / D recorded and recorded on the PC.
- the posture change of the subject was recorded from the side using a DV camera. pelvis
- the sensor output when standing was set to the reference value of 0 degrees, and the backward tilt was set to positive.
- the subjects were two male and female adults of average height (male / "170 cm, female 160 cm) (see Figure 4).
- the pelvis is inclined rearward when changing from the standing position to the sitting position.
- the cushion of No.1 in the pelvis had a pelvic rearward inclination of about 10 degrees less than that of a general cushion.
- the effect of sitting on the cushion 1 of the present invention for a long time on the body was examined.
- the experiment was conducted by constructing a floor seat environment using actual tatami mats.
- the pelvic tilt angle fluctuation for 40 minutes was measured under the two conditions of cushion type 1 (type-A) and sitting on a general cushion.
- the posture change of the subject was recorded from the side by video shooting.
- the burden site was 14 items: head, neck, shoulder, upper arm, elbow, arm, abdomen, back, waist, buttocks, thigh, elbow, lower leg, and foot.
- Each condition was performed at random and a sufficient time was measured.
- the subjects were six male college students (average 24H) and one male college teacher (65S).
- the experiment task presented video images and watched the movie in a crossed posture. For 65-year-old men, The experiment time was set to 20 minutes because of concerns about physical burden.
- Fig. 8 shows the results of comparing the posture change with the change of the pelvic front-back inclination angle due to the difference in the cushion of a 22-year-old male subject whose posture is stable and relatively durable.
- the pelvis is gradually tilting backward with the passage of time.Comparing the two conditions, the pelvic slope of the general cushion is 23 to 29 degrees, while The cushion 1 of the present invention has a small inclination angle of 22 to 24 degrees.
- the stable part was averaged every 5 minutes, and as shown in Fig. 9, the average of the change over time in young subjects was calculated.
- the pelvis basically repeats a pattern of gradually inclining backward over a measurement time of 40 minutes, and turning into an anterior inclination after a while. It can be seen that this posture change pattern appears in the general cushions around 5 minutes after the start of the experiment, but is stable up to about 15 minutes in cushions 1.
- the pelvic tilt angle data was subjected to frequency analysis using an AR model, which is one of the time series analyses.
- No. Figure 10 shows the results of frequency analysis of a 65-year-old male subject at 5 minutes and 15 minutes after the start of the experiment.
- the high-frequency spectrum component is large at 5 minutes, the fast B-gap is formed, and the amplitude is generally large.
- This frequent posture change can be considered as an operation for reducing the numbness of the lower limbs due to the crossing of the legs and the accumulated fatigue on various parts of the body such as the back and lower back, so that the cushion 1 of the present invention can be used to carry the body. It is considered that the effect to be postponed might be.
- Fig. 12 shows the seat cushion 1 for European and American participants, "Is the size appropriate? / Fitness”, “Is the back muscle easy to stretch? Back extension”, “Is the seat comfortable? The results of a five-point subjective evaluation of the three items “/ comfort” are shown, with 5 being the highest score. The size was normal, and a positive result was obtained with a score of 4 or more for ease of stretching of the back and comfort.
- the cushion 1 of the present invention has the following advantages as compared with ordinary cushions.
- Pelvic tilt angle measurement The back tilt of the pelvis is reduced by 5 to 10 degrees, the back is extended, and the posture is stable.
- the cushion 1 of the present invention will be a useful tool that supports traditional floor sitting and complements healthy and comfortable sitting comfort.
- results of the simulation and the product evaluation method described above can be sold collectively to a business operator as a design and manufacturing software for a cushion and a product of a cushion, Ergo-Zabuton. It is also very useful as presentation data when selling cushions.
- the inside of the cushion bag is divided into the buttocks support region and the leg assembly region, and the buttocks support region is filled with cork chips.
- the resin layer has a three-layer structure surrounded by a soft foamed resin layer, and the upper surface of the buttocks support region has a thick structure that is inclined toward the upper surface of the leg region so as to encourage the pelvis to lean forward.
- the back of the cushion is made thicker so that the spine can be maintained in the correct posture, and the part that touches the buttocks is higher than the front side where the legs are assembled.
- the buttock shape and the shape of each individual can be varied, so that the muscular fatigue is less likely to occur even when sitting for a long time.
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- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/550,513 US20070143927A1 (en) | 2003-03-26 | 2003-09-26 | Cushion and method of evaluating the cushion |
AU2003266656A AU2003266656A1 (en) | 2003-03-26 | 2003-09-26 | Cushion and method of evaluating the cushion |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-085794 | 2003-03-26 | ||
JP2003085794A JP2004290370A (ja) | 2003-03-26 | 2003-03-26 | 座布団およびその評価方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004084679A1 true WO2004084679A1 (ja) | 2004-10-07 |
Family
ID=33095041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/012363 WO2004084679A1 (ja) | 2003-03-26 | 2003-09-26 | 座布団およびその評価方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070143927A1 (ja) |
JP (1) | JP2004290370A (ja) |
AU (1) | AU2003266656A1 (ja) |
WO (1) | WO2004084679A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5622857B2 (ja) * | 2010-09-15 | 2014-11-12 | 川邉 研次 | 座位姿勢矯正座具 |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100908294B1 (ko) | 2007-09-28 | 2009-07-17 | 안재홍 | 앉은 자세 교정 기구 |
US20110296607A1 (en) * | 2009-02-20 | 2011-12-08 | Koninklijke Philips Electronics N.V. | System and method for bed height adjustment |
WO2011075771A1 (en) * | 2009-12-22 | 2011-06-30 | Gregory Commercial Furniture Pty Limited | Seat cushion |
US8902159B1 (en) | 2012-07-24 | 2014-12-02 | John Matthews | Ergonomic support apparatus having situational sensory augmentation |
CA2881878C (en) * | 2012-08-15 | 2018-04-24 | Loan KIM THI PHAM | A sitting device for prevention of spinal diseases |
US8875330B2 (en) * | 2012-12-06 | 2014-11-04 | Nikesha Nicole Wallace | Child safety and support pillow device |
US10869566B2 (en) | 2013-10-28 | 2020-12-22 | Alivia Kassab Arabo | Miniaturized travel cushion having inner opposing ledge configurations for providing spacing for a wearer's ears along with secondary directed pressure generating portions for treatment of trapezius back muscles |
USD756148S1 (en) * | 2014-09-18 | 2016-05-17 | Stadium Buttz, LLC | Strap on contoured stadium cushion |
USD756147S1 (en) * | 2014-09-18 | 2016-05-17 | Stadium Buttz, LLC | Strap on rounded stadium cushion |
USD787232S1 (en) * | 2015-08-27 | 2017-05-23 | Alivia Kassab Arabo | Pillow |
USD815861S1 (en) | 2016-12-12 | 2018-04-24 | Alivia Kassab Arabo | Memory pillow |
USD844346S1 (en) * | 2018-01-29 | 2019-04-02 | Shenzhen Lian Da Technology Industrial Co., Ltd. | Lumbar cushion |
USD944035S1 (en) * | 2020-09-17 | 2022-02-22 | Jingang YANG | Pillow |
USD1024618S1 (en) * | 2024-01-22 | 2024-04-30 | Xiaoyan Ye | Cushion |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0679349U (ja) * | 1993-04-28 | 1994-11-08 | 文雄 淺野 | 座蒲団 |
WO1996014004A1 (en) * | 1994-11-04 | 1996-05-17 | Graebe Robert H | Modular cushion construction with detachable pommel |
JPH11155696A (ja) * | 1997-11-27 | 1999-06-15 | Kokichi Ishida | 座布団 |
JP3063421U (ja) * | 1998-04-29 | 1999-11-05 | 元 植 申 | 脊椎保護矯正式左右均衡座布団 |
JP2001190384A (ja) * | 1999-08-11 | 2001-07-17 | Natural Foods & Life:Kk | 抱き蒲団 |
JP2002253392A (ja) * | 2001-02-28 | 2002-09-10 | Takashimaya Nippatsu Kogyo Co Ltd | ロボットシート及びこれを用いた車両用シートのカスタマイズオーダシステム |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0568358U (ja) * | 1991-11-11 | 1993-09-17 | 株式会社グローバルサービス | 座布団 |
-
2003
- 2003-03-26 JP JP2003085794A patent/JP2004290370A/ja active Pending
- 2003-09-26 US US10/550,513 patent/US20070143927A1/en not_active Abandoned
- 2003-09-26 AU AU2003266656A patent/AU2003266656A1/en not_active Abandoned
- 2003-09-26 WO PCT/JP2003/012363 patent/WO2004084679A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0679349U (ja) * | 1993-04-28 | 1994-11-08 | 文雄 淺野 | 座蒲団 |
WO1996014004A1 (en) * | 1994-11-04 | 1996-05-17 | Graebe Robert H | Modular cushion construction with detachable pommel |
JPH11155696A (ja) * | 1997-11-27 | 1999-06-15 | Kokichi Ishida | 座布団 |
JP3063421U (ja) * | 1998-04-29 | 1999-11-05 | 元 植 申 | 脊椎保護矯正式左右均衡座布団 |
JP2001190384A (ja) * | 1999-08-11 | 2001-07-17 | Natural Foods & Life:Kk | 抱き蒲団 |
JP2002253392A (ja) * | 2001-02-28 | 2002-09-10 | Takashimaya Nippatsu Kogyo Co Ltd | ロボットシート及びこれを用いた車両用シートのカスタマイズオーダシステム |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5622857B2 (ja) * | 2010-09-15 | 2014-11-12 | 川邉 研次 | 座位姿勢矯正座具 |
Also Published As
Publication number | Publication date |
---|---|
JP2004290370A (ja) | 2004-10-21 |
US20070143927A1 (en) | 2007-06-28 |
AU2003266656A1 (en) | 2004-10-18 |
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