WO2013061552A1 - Sitting tool and chair - Google Patents
Sitting tool and chair Download PDFInfo
- Publication number
- WO2013061552A1 WO2013061552A1 PCT/JP2012/006686 JP2012006686W WO2013061552A1 WO 2013061552 A1 WO2013061552 A1 WO 2013061552A1 JP 2012006686 W JP2012006686 W JP 2012006686W WO 2013061552 A1 WO2013061552 A1 WO 2013061552A1
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- WIPO (PCT)
- Prior art keywords
- seat
- plate
- seating
- chair
- seated person
- Prior art date
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Classifications
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- 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
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/42—Support for the head or the back for the back of detachable or loose type
- A47C7/425—Supplementary back-rests to be positioned on a back-rest or the like
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- 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
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- 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
- A47C7/0213—Detachable or loose seat cushions detachably secured to seats, e.g. by ties or hook and loop straps
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- 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 sitting tool and a chair.
- FIGS. 17A and 17B are schematic views showing a part of the operator's skeleton when seated on a chair.
- the leg portions of the chair 7 are not shown in order to simplify the description.
- FIG. 17A shows the ideal posture of the worker.
- the pelvis 91 is supported by the seat plate 71 and the back plate 73 and is in an upright state.
- the spine 92 draws the same S-shaped curve as when the human body is standing, and the burden on the pelvis 91 and the spine 92 is reduced. If the operation can be continued while maintaining the S-shaped curve of the spine 92, chronic fatigue of the operator, such as lower back pain and lower back, can be considerably reduced.
- Patent Document 1 proposes a chair in which a seat plate and a back plate can be tilted backward at the same time. According to such a chair, by tilting the seat plate and the back plate backward, the pelvis is pressed against the back plate by the action of gravity, and the fatigue can be reduced.
- the present invention has been made in view of the above situation, and it is an object of the present invention to provide a sitting tool and a chair that can make a sitting posture of a seated person naturally good and can be comfortably seated. To do.
- the gist configuration of the present invention for achieving the above-described problems is as follows.
- the sitting tool of the present invention is In a sitting tool with a seat plate,
- the seat plate is The first seat, A second seating surface extending continuously from the first seating surface in the front direction of the sitting tool; With The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
- the stepped portion is restricted from moving forward by the step,
- the first seat surface extends over the entire length of the seat plate in the left-right direction of the sitting tool without being obstructed by the step.
- the seated position of the seated person can be naturally improved.
- the first seat surface extends over the entire length of the seat plate in the left-right direction of the sitting tool without being disturbed by the step, the first step surface does not press the left and right sides of the seated person's buttocks. As a result, the seated person can sit comfortably without feeling pressure on the buttocks.
- the end surface on the first seating surface side of the second seating surface is formed to be curved or bent so as to be convex in the front direction of the sitting tool when viewed in plan. According to this configuration, it is possible to absorb a slightly different sciatic position difference depending on the individual difference of the seated person, and to improve the seated posture of the seated person more effectively, and the step is an outline of the sciatic bone in a plan view. Since it becomes more conforming to the shape, the seated person can sit more comfortably.
- the seating tool in which the maximum length in the front-rear direction of the sitting tool in the region excluding the central region in the left-right direction of the sitting tool of the second seating surface excluding the end surface on the first seating surface side is the seating tool It is preferable to be shorter than the maximum length in the front-rear direction. According to this configuration, the upper part of the thigh of the seated person can be prevented from being widely pressed against the second seating surface, and the seated person can sit comfortably for a long time, and the sitting tool can be configured to be extremely compact. it can.
- the maximum length of the first seating surface in the front-rear direction of the sitting tool is 70 mm or more and 250 mm or less, and a central region in the left-right direction of the sitting tool of the second seating surface excluding the end surface on the first seating surface side. It is preferable that the maximum length of the sitting area in the front-rear direction of the sitting tool is 150 mm or less.
- the suitable size of the first seating surface ensures a size that allows the seated person's buttocks to be placed on the first seating surface and suppresses the seat from moving forward.
- the sitting posture of the seated person can be improved.
- the upper part of the thigh of the seated person can be prevented from being widely pressed against the second seating surface, so that the seated person can sit comfortably for a long time, and the sitting tool can be configured to be extremely compact.
- a preferred example of the sitting tool of the present invention is: It further includes a back plate that extends from an end portion of the seat plate on the first seat surface side and extends at least partially at a substantially right angle to the seat plate. According to this configuration, the seating posture of the seated person can be improved even when there is no wall surface extending substantially perpendicular to the horizontal plane on which the seating tool should be placed, which should contact the sacrum of the seated person. Can do.
- a support for supporting the seat plate includes a bottom plate on which the seat plate is placed, and a back plate that extends from an end of the seat plate on the first seat surface side and extends at least partially at a right angle to the bottom plate. And have. According to this configuration, the seating posture of the seated person can be improved even when there is no wall surface extending substantially perpendicular to the horizontal plane on which the seating tool should be placed, which should contact the sacrum of the seated person. If the seat plate and the support are configured separately, the size of the pelvis that is slightly different depending on the individual difference of the seated person can be absorbed, and the seated posture of the seated person can be improved more effectively. Can do.
- the chair of the present invention In a chair with a seat plate, a back plate, and legs,
- the seat plate is The first seat, A second seat surface extending continuously from the first seat surface in the front direction of the chair; With A front surface of the back plate located on the side of the seat plate extends at least partially at a substantially right angle to the first seat surface;
- the second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side, When the first seat surface supports the buttocks of the seated person and the second seat surface supports the upper part of the thigh of the seated person, the back plate restricts the seated person's ischi from moving forward by the step.
- the first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step,
- An end surface of the second seat surface on the first seat surface side is formed to be curved or bent so as to be convex in the front direction of the chair when viewed in plan.
- the step does not press on the left and right sides of the seated person's buttocks.
- the seated person can sit comfortably without feeling a sense of pressure on the buttocks.
- the end surface of the second seat surface on the first seat surface side is formed to be curved or bent so as to be convex in the front direction of the chair when viewed in plan, it is subtle depending on the individual difference of the seated person. This makes it possible to absorb the difference in the position of the different sciatic bones and effectively improve the sitting posture of the seated person. Can sit on.
- the seat plate is The first seat, A second seat surface extending continuously from the first seat surface in the front direction of the chair; With A front surface of the back plate located on the side of the seat plate extends at least partially at a substantially right angle to the first seat surface;
- the second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side, When the first seat surface supports the buttocks of the seated person and the second seat surface supports the upper part of the thigh of the seated person, the back plate restricts the seated person's ischi from moving forward by the step.
- the first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step,
- the maximum length of the first seat surface in the front-rear direction of the chair is 70 mm or more and 250 mm or less, and the region of the second seat surface excluding the end surface on the first seat surface side excluding the central region in the left-right direction of the chair.
- the maximum length of the chair in the front-rear direction is 150 mm or less.
- the seating of the seated person is ensured by a suitable size of the first seating surface, while ensuring a size such that the buttocks of the seated person can be placed on the first seating surface.
- the posture can be improved.
- the upper thigh of the seated person can be prevented from being widely pressed against the second seat surface, so that the seated person can sit comfortably for a long time, and the chair can be configured to be extremely compact.
- the present invention it is possible to provide a sitting tool and a chair that can make a seated posture of a seated person naturally good and can be comfortably seated.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, showing a usage mode of the sitting tool of FIG.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, showing a usage mode of the sitting tool of FIG.
- FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, showing a usage mode of the sitting tool of FIG.
- It is a perspective view which shows 2nd embodiment of the sitting tool of this invention.
- It is a perspective view which shows 4th embodiment of the sitting tool of this invention.
- It is a perspective view which shows 5th embodiment of the sitting tool of this invention.
- It is a perspective view which shows 6th embodiment of the sitting tool of this invention.
- It is a perspective view which shows 8th embodiment of the sitting tool of this invention.
- FIG. 12A is a perspective view showing an eleventh embodiment of the sitting tool of the present invention
- FIG. 12B is a sectional view taken along the line CC of the sitting tool of FIG.
- FIG. 14 is a cross-sectional view taken along line BB in FIG. 13, showing a human body seated on the chair of FIG. 13.
- FIG. 14 is a perspective view which shows 2nd embodiment of the chair of this invention and the other chair of this invention.
- FIG. 1 It is a perspective view which shows 3rd embodiment of the chair of this invention, and the other chair of this invention. It is the longitudinal cross-sectional view which shows a mode that the human body sat down on the conventional chair, (a) is a longitudinal cross-sectional view which shows the state with which the human body maintained the favorable attitude
- FIG. 1 is a perspective view showing a first embodiment of the sitting tool of the present invention.
- FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a usage mode of the sitting tool of FIG.
- the sitting tool 1 of the present embodiment is used for a chair or the like that is seated with the knee of a human body bent, and is configured by a single seat plate 3.
- the seat plate 3 includes a seat surface 2 on which a person using the sitting tool 1 sits.
- the seat surface 2 includes a first seat surface 21 and a second seat surface 22. That is, the first seat surface 21 and the second seat surface 22 form one seat surface 2.
- the second seat surface 22 continues from the first seat surface 21 and extends in the front direction of the sitting tool 1.
- the second seating surface 22 has an inclined end surface 221 on the first seating surface 21 side and is adjacent to the first seating surface 21 at the end surface 221.
- the end surface 221 on the first seating surface 21 side in the second seating surface 22 is formed by having an inclination whose height decreases from the second seating surface 22 side toward the first seating surface 21 side. Yes, part of the second seating surface 22.
- the second seat surface 22 forms a step that is higher than the first seat surface 21 by the end surface 221 on the first seat surface 21 side.
- the 1st seat surface 21 and the 2nd seat surface 22 are provided with a substantially horizontal surface except the level
- a substantially horizontal surface that is the main part of the second seating surface and is continuous with the end surface (slope) on the first seating surface side is referred to as a “main surface”. There is.
- the width direction of the sitting tool 1 is referred to as the left-right direction
- the length direction of the sitting tool 1 (the depth is the direction in which the first seating surface 21, the end surface 221 and the main surface 10 are sequentially passed) is the front-rear direction.
- the left-right direction and the front-rear direction are orthogonal to each other.
- the 2nd seat surface 22 side is called the front direction or the front
- the 1st seat surface 21 side is called the back direction or the back.
- the terms “left-right direction”, “front (direction)”, and “rear (direction)” used in this specification are respectively “left-right direction” viewed from the seated person. ",” Front (direction) ", and” rear (direction) ".
- substantially horizontal surface includes not only a completely horizontal surface but also a surface with a slight curvature that matches the shape of the buttocks and upper thighs.
- the first seat surface 21 has a slight curvature, the first seat surface 21 is provided with a height difference only in the left-right direction of the sitting tool 1 (the width direction of the sitting tool 1), and the height difference in the front-rear direction. Is preferably not provided.
- the first seat surface 21 in this case has the same curvature as the arc surface of the large-diameter cylinder extending in the front-rear direction of the sitting tool 1, that is, the first seating surface 21 is curved in the left-right direction of the sitting tool 1, and has a concave arc surface at the center.
- An example of the curvature provided on the first seat surface 21 is 1800R (curvature on an arc surface having a curvature radius of 1800 mm), but is not particularly limited.
- the second seat surface 22 may be provided with the same curvature as the first seat surface 21.
- the curve provided in this way is extremely small, even if the curve is provided only on one of the first seat surface 21 and the second seat surface 22, both of them are substantially parallel. Absent.
- the “upper thigh” refers to the base part of the thigh of the human body.
- the end surface (slope) 221 of the second seat surface 22 on the first seat surface 21 side extends straight in the left-right direction. Further, the first seat surface 21 extends over the entire length of the seat plate 3 in the left-right direction of the sitting tool 1 without being disturbed by the step. In other words, the right and left sides of the first seat surface 21 are not provided with anything that restricts the pelvis 91 of the seated person.
- the seat plate 3 may be formed by combining a plurality of members by bonding them to each other, or may be formed by cutting a single plate-shaped member, or may be a thermoplastic elastomer (TPE) or Rubber or the like may be integrally formed by molding.
- TPE thermoplastic elastomer
- Rubber or the like may be integrally formed by molding.
- the seat plate 3 is formed of a plurality of members, for example, the first seat surface 21 side portion and the second seat surface 22 side portion may be formed of different members.
- the end surface 221 is not limited to the inclined surface, and is merely provided to form a step on the seating surface 2, so long as it has a height difference.
- the skeleton is described so as to come into contact with the sitting tool 1 and the wall surface 8, but this is a schematic for easy understanding. Since there is a body tissue such as muscle or skin between the wall surface 8, the skeleton, the sitting tool 1, and the wall surface 8 are not in direct contact with each other as a matter of course.
- the sitting tool 1 has a horizontal surface in a state where the rear edge portion 211 of the first seating surface 21 opposite to the second seating surface 22 is in contact with or in close proximity to the wall surface 8 extending upward.
- the wall surface 8 here may be a surface extending upward from the vicinity of the rear edge portion 211 of the first seating surface 21 of the sitting tool 1.
- the horizontal plane 9 here may be a plane extending in a horizontal direction from the wall surface 8 and extending from the seated person's sacrum to the back of the knee (popliteal).
- the pelvis 91 is not strongly pressed against the wall surface 8 as in the case of sitting with the knee straightly extended.
- the seating posture can be naturally improved.
- the wall surface 8 and the horizontal surface 9 correspond to the wall surface of the wall and the upper surface of the horizontal plate provided on the wall when the sitting tool 1 is used in a chair built on the wall of the building, for example.
- the wall surface 8 and the horizontal surface 9 correspond to the front surface of the back plate of the chair (that is, the surface facing the seated person) and the seat surface of the seat plate, respectively.
- the wall surface 8 and the horizontal surface 9 correspond to the front surface of the back plate and the seat surface of the seat plate, respectively, formed by reclining when the sitting tool 1 is used in a care bed (not shown) having a reclining mechanism. .
- the first seat surface 21 supports the seated person's buttocks
- the upper surface of the seated person is supported by the two seating surfaces 22.
- the pair of left and right sciatic bones 911 and 911 existing at the lower part of the pelvis 91 of the person to be seated abuts on the step formed by the end surface 221, and the step is forward (that is, in the direction toward the second seating surface 22). Movement is restricted. Further, the sacrum 912 existing on the rear part (back side) of the pelvis 91 of the seated person is in contact with the wall surface 8, and the backward movement is restricted by the front surface of the wall surface 8.
- the pelvis 91 is stable in a state in which the pair of sciatic bones 911 and 911 and the sacrum 912 are supported by the step formed by the end surface 221 and the wall surface 8 (hereinafter referred to as “three-point fixed state”). Thereby, it is suppressed that the pelvis 91 moves to the front (2nd seat surface 22 side direction) of the sitting tool 1, and the person who seats takes a posture as shown in FIG.17 (b). As a result, the posture of the seated person becomes naturally good, so that the spine 92 can maintain a good S-curve for a long time, and chronic fatigue to the lower back pain and the waist is reduced. Increased blood flow to the brain will also increase concentration.
- the first seat surface 21 extends over the entire length of the seat plate 3 in the left-right direction of the sitting tool 1 without being obstructed by the step.
- the right and left sides of the first seat surface 21 are not provided with anything that restricts the pelvis 91 of the seated person.
- the step does not press the left and right sides of the occupant's buttocks, and the first seating surface 21 supports the occupant's buttocks, so that the occupant can sit comfortably without feeling a sense of pressure on the buttocks. Can do.
- the step length in the left-right direction is the distance between the pair of ischials 911, 911.
- the length of the step in the left-right direction can be shortened to be equal to the distance between the pair of ischies 911 and 911, and the sitting tool 1 can be configured compactly.
- the pair of sciatic bones 911 and 911 can be reliably locked by the step formed by the end surface 221, so that the pelvis 91 can be stably fixed.
- the term “substantially horizontal” includes not only a horizontal plane but also a very small curved arc surface.
- the sitting tool 1 is provided with a step formed by the end surface 221 to stabilize the posture of the pelvis 91, the shapes of the first seating surface 21 and the second seating surface 22 are determined depending on the weight of the person sitting on the sitting tool 1. It is desirable that the shape of the end surface 221 and the step height are maintained without being deformed. From such a viewpoint, it is preferable that the seat plate 3 is made of a material that does not easily cause dents due to the weight of the user. As such a material, it is possible to use a high-density fabric with small shrinkage such as wood or canvas, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, or the like.
- TPE thermoplastic elastomer
- the hardness is preferably 5 to 120.
- “hardness” in this specification refers to the hardness obtained by measuring by a method defined in K6253 using an A type durometer defined in K6253 of JIS standard. By setting the hardness within this range, it is possible to prevent the seat plate 3 from being undesirably deformed by using the seat plate 3 for a long period of time while ensuring the comfort of the seated person. From the same viewpoint, the hardness is more preferably 40 to 90. In addition, it is desirable that the hardness of at least the portion on the second seating surface 22 side, particularly the stepped portion formed by the end surface 221 is within the above preferable range, particularly the above further preferable range.
- the first seat surface 21 has a function of suppressing the sitting tool 1 from moving forward by being pressed by the weight applied from the buttocks. For this reason, the length of the first seat surface 21 in the front-rear direction, that is, the length L 1 from the rear edge portion 211 of the first seat surface 21 to the lower end of the end surface 221 is such a length that the weight from the buttocks is sufficiently applied. Need to be.
- the longitudinal length L 1 of the first monodentate surface 21 is too long, it can not be achieved with three-point fixed state of the pelvis 91. From this viewpoint, the length L 1 in the front-rear direction of the first seat surface 21 is preferably 70 mm or greater and 250 mm or less.
- the length L 1 in the front-rear direction of the first seating surface 21 is, for example, 100 mm or more and 200 mm or less in order to be able to support adult men and adult women having a standard body shape. Is preferably 150 mm or more and 170 mm or less, and preferably 70 mm or more and 150 mm or less in order to be able to handle, for example, children under elementary school age. Further, the length L 1 is, for example, because the spine 92 is that as much as possible even sitting position a elderly like bent convexly backward satisfactory is preferably 250mm or less than 200mm .
- the second seating surface 22 supports the upper part of the thigh of the seated person with the main surface 10 and has a function of restricting the pair of ischials 911 and 911 from moving forward by forming a step formed by the end surface 221.
- longitudinal length of the main surface 10 of the second seating surface 22 that is, the leading edge from 222 to the upper end of the end surface 221 length L 2 is too long for the second seating surface 22, the second seat surface 22, the upper part of the thigh of the seated person is pressed widely.
- longitudinal length L 2 of the main surface 10 of the second seating surface 22 is preferably 150mm or less, more preferably 90mm or less, and more preferably 40mm or less.
- longitudinal length L 2 of the main surface 10 of the second seating surface 22 is too short, if hardness is used relatively low material, by weight applied from the seat occupant the second seating surface 22 becomes easily deformed On the contrary, when a material having a relatively high hardness is used, the comfort of the seated person is reduced because the portion of the second seating surface 22 bites into the upper part of the thigh of the seated person.
- longitudinal length L 2 of the main surface 10 of the second seating surface 22 is preferably 3mm or more.
- the sitting tool 1 locks the pair of sciatic bones 911, 911, and the wall surface 8 locks the sacrum 912, so that the pelvis 91 of the sitting person can be stably fixed. Accordingly, if the sitting tool 1 itself moves in the front-rear direction, the action of stably fixing the pelvis 91 is diminished. Therefore, it is preferable to provide a known anti-slip means (not shown) on the back surface 11 of the sitting tool 1.
- the non-slip means may be formed by forming the back surface 11 of the sitting tool 1 in a concavo-convex surface, attaching a non-slip sheet to the back surface 11 of the sitting tool 1, or applying an adhesive to the back surface 11 of the sitting tool 1. Etc. can be realized.
- the height H 1 of the step formed by the end surface 221 is preferably 3 mm or more and 30 mm or less, more preferably 3 mm or more and 20 mm or less, and further preferably 8 mm or more and 15 mm or less.
- the angle ⁇ 1 formed between the end surface 221 and the first seat surface 21 decreases, the person sitting on the sitting tool 1 feels uncomfortable.
- the angle ⁇ 1 formed between the end surface 221 and the first seat surface 21 is too large, the pair of ischials 911 and 911 can easily get over the step, and the forward movement of the pelvis 91 can be sufficiently restricted. become unable.
- the angle ⁇ 1 formed by the end face 221 and the first seating surface 21 is preferably 90 ° or more and 165 ° or less, more preferably 90 ° or more and 140 ° or less, and 90 ° or more. More preferably, it is 120 ° or less.
- the length W 1 in the left-right direction of the end surface 221 (that is, the length in the left-right direction of the first seating surface 21 in the example of FIG. 1) needs to be longer than the distance between the pair of ischials 911, 911, From the viewpoint of obtaining a compact sitting tool 1, it is preferably 100 mm or more and 500 mm or less, more preferably 150 mm or more and 400 mm or less, and further preferably 250 mm or more and 300 mm or less.
- the length L 1 in the front-rear direction of the first seat surface 21 is set to 0. 0 of the length W 1 in the left-right direction of the end surface 221. It is preferably 40 to 0.60 times, and more preferably 0.46 to 0.51 times.
- the length L 2 in the front-rear direction of the main surface 10 of the second seating surface 22 is the left and right of the end surface 221. It is preferably 0.01 to 0.26 times the length W 1 in the direction, and more preferably 0.01 to 0.10 times.
- the sitting tool 1 has a horizontal projection surface formed in a rectangular shape. Therefore, the length in the left-right direction of the sitting tool 1 is determined from the front edge portion 222 of the sitting tool 1. Constant up to the trailing edge 211.
- the shape of the horizontal projection surface of the sitting tool 1 is not limited to a rectangular shape, and can be any shape such as a circle, an ellipse, a trapezoid, a sector, or a combination of some of these shapes.
- the length of the sitting tool 1 in the left-right direction may vary from the front edge 222 to the rear edge 211 of the sitting tool 1.
- the edge part extended in the left-right direction of the sitting tool 1 between the main surface 10 and the end surface 221 of the 2nd seat surface 22 is not curved in the curved surface shape in the cross section shown in FIG. Forming. Thereby, it can suppress that a seated person's sciaticus 911 slips ahead on the said edge part, and rides on the 2nd seat surface 22.
- the seat occupant comfortably sits only by installing the sitting tool 1 on the horizontal surface 9 with the rear edge 211 of the sitting tool 1 in contact with or in close proximity to the wall surface 8.
- a three-point fixed state can be achieved, and the seated posture of the seated person can be corrected.
- the distance between the wall surface 8 and the sitting tool 1 can be adjusted, so that the user can adjust the pelvis. Even if the sizes of 91 are different, a three-point fixed state can be achieved.
- the sitting tool 1 is more compact than a chair, and is excellent in storage and portability.
- the sitting tool 1 can be used for various chairs. For example, in addition to chairs built in buildings, office chairs, nursing chairs and nursing beds, table chairs, public benches, car seats, aircraft seats, ski lift chairs, wheelchairs, etc. Can be used for
- end surface 221 on the first seating surface 21 side of the second seating surface 22 may be formed by a concave curved surface recessed forward or a convex curved surface projecting rearward, instead of being formed by an inclined surface.
- FIG. 3 is a perspective view showing a second embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the seating tool 1A of the present embodiment includes a seating board 3A having the same configuration as the seating board 3 constituting the seating tool 1 of the first embodiment already described, and an end of the seating board 3A on the first seating surface 21 side.
- (Back edge portion 211) that is, a back plate 31 extending substantially perpendicularly upward with respect to the seat plate 3A from the end of the first seat surface 21 of the seat plate 3A opposite to the second seat surface 22.
- the seat plate 3A and the back plate 31 may be integrally formed, or may be formed separately and fixed to each other by adhesion, fastening, or the like. Further, the back plate 31 may extend from the end portion of the seat plate 3A on the first seat surface 21 side, and may extend substantially perpendicularly upward with respect to the seat plate 3A only at a part thereof.
- the front surface of the back plate 31 abuts against and supports the sacrum 912 present at the rear part of the pelvis 91 of the seated person, and restricts the pelvis 91 from moving backward.
- the pelvis 91 of the seated person is regulated by the step formed by the end surface 221 so that the forward movement of the pair of sciatic bones 911 and 911 is regulated, and the backward movement of the sacrum 912 is regulated by the front surface of the back plate 31. Stable in state.
- the height H 2 of the back plate 31 with respect to the first seat surface 21 is preferably 50 mm or more and 350 mm or less, More preferably, it is 100 mm or more and 210 mm or less.
- the lateral direction of the length of the end surface 221 i.e., in the example of FIG. 3 , it is preferable that the left-right direction is 0.16 to 1.16 times the length) W 1 of the first monodentate surface 21, more preferably from .33 to .70 times.
- the angle formed between the back plate 31 and the seat plate 3A that is, the angle ⁇ 2 formed between the front surface of the back plate 31 and the first seat surface 21 is substantially a right angle so that a three-point fixed state can be achieved. Specifically, it is preferably 90 ° or more and 120 ° or less, and more preferably 90 ° or more and 95 ° or less.
- the length L 3 in the front-rear direction of the first seat surface 21 is preferably 70 mm or greater and 250 mm or less. More specifically, the length L 3 in the front-rear direction of the first seating surface 21 is, for example, 100 mm or more and 200 mm or less in order to be compatible with adult men and adult women having a standard body shape. Is preferably 150 mm or more and 170 mm or less, and preferably 70 mm or more and 150 mm or less in order to be able to handle, for example, children under elementary school age.
- the length L 3 is, for example, because the spine 92 is that as much as possible even sitting position a elderly like bent convexly backward satisfactory is preferably 250mm or less than 200mm . Further, in view of the functions of the first seat surface 21 and the back plate 31, the length L 3 in the front-rear direction of the first seat surface 21 is 0 of the height H 2 of the back plate 31 with respect to the first seat surface 21. The ratio is preferably 70 to 0.90 times, more preferably 0.75 to 0.85 times.
- the back plate 31 causes the first seat surface 21 to be
- a three-point fixed state can be achieved by forming a wall surface extending substantially perpendicularly upward.
- the seat plate 3A is composed of a lower seat plate that forms the first seat surface 21 and an upper seat plate that is provided on the lower seat plate and that forms the second seat surface 22. configured, by fixing the upper seating plate from moving in the longitudinal direction in the lower seating plate, it may be provided adjusting means for adjusting the longitudinal length L 3 of the monodentate surface 21. Thereby, even if the magnitude
- the adjusting means can be realized, for example, by fixing the lower seat plate and the upper seat plate with a hook-and-loop fastener.
- the seat plate 3A and the back plate 31 are configured separately, and both are connected by a hinge (not shown) or the like so that the back plate 31 can be tilted forward or backward with respect to the seat plate 3A. May be.
- a hinge not shown
- 1 A of sitting implements will be comprised by folding type, and a stowability improves.
- FIG. 4 is a perspective view showing a third embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the first seat surface 21B that supports the seated person's buttocks is formed as the upper surface of the rear seat plate 12, and the second seat surface 22B that supports the upper part of the thigh of the seated person is formed in the left-right direction. It is formed as the upper surface of the uneven sheet 13 formed by connecting a plurality of extending cylindrical fillers 224 in the front-rear direction.
- the rear seat plate 12 and the concavo-convex sheet 13 are connected to each other by sewing or bonding them to form the seat plate 3B.
- the rear seat plate 12 having the first seat surface 21B is made of a material that hardly causes dents due to the weight of the user.
- a material such as a high-density fabric with small shrinkage such as wood or canvas, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, or the like.
- TPE thermoplastic elastomer
- the hardness is preferably 5 to 120, and more preferably 40 to 90.
- the cylindrical filler 224 is formed by inserting a core material 225 into the internal space of the cylinder 223.
- the cylindrical fillers 224 are connected to each other by sewing or bonding the cylinders 223 together.
- the cylinder 223 is formed of a material having a lower hardness than the core material 225, for example, a cloth.
- the core material 225 is made of a material having such a strength as not to be crushed by the weight of the person sitting, such as a hard rubber bar, a rubber tube, and a wooden bar.
- the core material 225 may have either a columnar shape or a polygonal column shape, and the uneven shape of the second seating surface 22B is formed according to the shape and size thereof.
- a portion of the internal space of the cylinder 223 that is not occupied by the core material 225 can be filled with a cushion material.
- a cushioning material a foamed material such as cotton or sponge, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, a high-density fabric, or the like having cushioning properties can be used. Thereby, a seated person's comfort can be improved.
- the sitting tool 1B of the present embodiment also includes a step that regulates the movement of the pair of sciatic bones 911 and 911 of the person who sits down.
- Step height H 3 of the end surface 221B similarly to the step height H 1 of the end face 221 of the seat device 1 according to the first embodiment, more that preferably at 3mm than 30mm or less, 3mm or more 20mm or less Preferably, it is 8 mm or more and 15 mm or less. Further, due to the core material 225 existing inside the cylindrical filler 224, this step is not lost even if the user of the sitting tool 1B is seated.
- the sitting tool 1B according to the third embodiment has a trapezoidal horizontal projection surface. Therefore, the length of the sitting tool 1B in the left-right direction is from the front edge 222B toward the rear edge 211B. It is gradually decreasing.
- the shape of the horizontal projection surface of the sitting tool 1B is not limited to a trapezoid, and can be any shape such as a rectangle or a sector.
- the connecting portion between the cylindrical fillers 224 has flexibility. Therefore, in addition to the effects of the first embodiment, when the sitting tool 1B is not used, it is possible to store the concavo-convex sheet 13 by winding it in the front-rear direction or folding it at the connecting portion of the concavo-convex sheet 13.
- the second seating surface 22B is formed by the surface of the tube 223 made of a relatively soft material, so that the comfort of the seated person can be improved.
- the second seating surface 22B may be configured using a hollow member such as a rubber hose instead of the cylindrical filler 224.
- the core material 225 may be curved or bent so as to be convex in the front direction or the rear direction.
- the cylindrical filler 224 is also curved or bent so as to be convex in the forward direction or the backward direction.
- the back plate 31 of the sitting tool 1A according to the second embodiment may be provided on the rear edge portion 211B of the sitting tool 1B.
- FIG. 5 is a perspective view showing a fourth embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1C of this embodiment is provided with a surface member 4 having cushioning properties on the upper surface of a sitting board 3C having the same configuration as the sitting board 3 constituting the sitting tool 1 of the first embodiment already described. is there. That is, the first seat surface 21C and the second seat surface 22C in the sitting tool 1C are formed by the upper surface of the surface member 4 having cushioning properties. For this reason, 1 C of sitting tools of this embodiment can improve the comfort of the person who seats, and can reduce the fatigue
- the surface member 4 is preferably composed of, for example, a cushion, a foam such as a cloth, a high-density fabric, or a sponge, a plastic material such as rubber, a thermoplastic elastomer (TPE), or an EVA resin.
- the thickness of the surface member 4 is substantially constant over the entire surface member. Therefore, the seat surface 2C formed by the surface member 4 is substantially parallel to the upper surface of the seat plate 3C. Accordingly, the step height H 4 of the end surface 221C and the preferred value of the angle ⁇ 3 formed by the end surface 221C and the first seating surface 21C are respectively the step height H 1 of the end surface 221 in the sitting tool 1 according to the first embodiment. Or it becomes the same as angle (theta) 1 which the end surface 221 and the 1st seat surface 21 make. The same applies to the length of the first seat surface 21C in the front-rear direction, the length of the main surface 10C in the front-rear direction, the length of the end surface 221C in the left-right direction, and the ratio between them.
- the step provided on the seating surface is maintained when the user is seated. Therefore, material and thickness T 1 of the surface member 4, so that the step of desired height after the deformed end face 221C by weight of a person seated is formed, is adjusted.
- a preferable value of the thickness T 1 of the surface member 4 is 1 to 15 mm.
- the sitting tool 1C has a horizontal projection surface formed in a rectangular shape.
- the shape of the horizontal projection surface of the sitting tool 1C is not limited to a rectangular shape, and may be any shape such as a circle, an ellipse, a trapezoid, a sector, or a combination of some of these shapes.
- the comfort of the seated person can be improved and the fatigue of the buttocks can be reduced when sitting for a long time.
- the back plate 31 of the sitting tool 1A according to the second embodiment may be provided on the rear edge portion 211C of the sitting tool 1C.
- FIG. 6 is a perspective view showing a fifth embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1D of the present embodiment is composed of a single seat plate 3D, similar to the sitting tool 1 of the first embodiment.
- the seat plate 3D is different from the sitting tool 1 of the first embodiment in that the seat plate 3D includes a first seat surface 21D that is convex in an arc shape in the direction of the second seat surface 22D. Accordingly, an end surface 221D on the first seating surface 21D side of the second seating surface 22D, which is a stepped portion, is formed to be curved so as to protrude forward when viewed in plan.
- the sitting tool 1D of the present embodiment can be fixed so as to wrap the pair of sciatic bones 911 and 911 by the step.
- Absorbing can improve the sitting posture of the seated person more effectively, and the level difference along the contour shape of the sciatic bone in a plan view allows the seated person to sit more comfortably. it can.
- a preferable value of the radius of curvature of the edge portion on the front side of the end surface 221D when viewed in plan is, for example, 290 to 330 mm.
- the first seating surface 21D extends over the entire length of the seat plate 3D in the left-right direction of the sitting tool 1D without being interrupted by a step.
- the sitting tool 1D has a horizontal projection surface formed in a rectangular shape.
- the shape of the horizontal projection surface of the sitting tool 1D is not limited to a rectangular shape, and may be any shape such as a circle, an ellipse, a trapezoid, a sector, or a combination of some of these shapes.
- the slightly different ischial position difference depending on the individual difference of the seated person is absorbed, and the seated posture of the seated person is improved more effectively.
- the step can be more conformed to the contour shape of the ischia in plan view, so that the seated person can sit more comfortably.
- the step that is, the end surface 221D on the first seating surface 21D side of the second seating surface 22D is formed to be convex forward when viewed in plan.
- the shape in which the end surface 221D is convex forward is not limited to the arc shape as described above, and may be, for example, a U shape.
- the end surface 221D on the first seating surface 21D side of the second seating surface 22D may be bent so as to be convex in a polygonal shape in the forward direction when viewed in plan.
- the back plate 31 of the sitting tool 1A according to the second embodiment may be provided on the rear edge portion 211D of the sitting tool 1D.
- FIG. 7 is a perspective view showing a sixth embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1E of the present embodiment forms a seat plate 3E by folding a thick fabric 5 having a small contractibility such as a cushion or a mat.
- the cushion or mat can be made of, for example, a cloth, a high-density fabric, a foamed material such as sponge, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, or the like.
- the seat plate 3E has a first seat surface 21E that supports the seated person's buttocks and a second seat surface 22E that supports the upper part of the seated person's thigh.
- the sitting tool 1E folds the thick dough 5 in the length direction and, further, folds the fold portion toward the rear of the sitting tool 1E by about half, so that the abutting surfaces are in contact with each other. It is fixed by bonding or sewing.
- the 2nd seat surface 22E has the convex curved surface 221E which protrudes back as an end surface by the side of the 1st seat surface 21E.
- the convex curved surface 221E has a function of forming a step with respect to the first seating surface 21E and restricting the pair of sciatic bones 911, 911 of the seated person to move forward.
- the step height H 5 of the convex surface 221E is similar to the step height H 1 of the seat member 1 of the end face 221 of the first embodiment, is preferably 3mm or more 30mm or less, 3mm or more 20mm or less It is more preferable that it is 8 mm or more and 15 mm or less.
- the shape of the horizontal projection surface is formed in the rectangular shape.
- the shape of the horizontal projection surface of the sitting tool 1E is not limited to a rectangular shape, and an arbitrary shape such as a trapezoid is possible.
- the sitting tool 1E can be easily manufactured. Further, since the seat surface of the sitting tool 1E is formed of a relatively soft material such as a cushion or a mat, the comfort of the seated person can be improved.
- the back plate 31 of the sitting tool 1A according to the second embodiment may be provided on the rear edge portion 211E of the sitting tool 1E.
- FIG. 8 is a perspective view showing a seventh embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1F of the present embodiment includes a seat plate 3F having the same shape as the sitting tool 1 of the first embodiment. And the sitting tool 1F has the seat surface 2F which consists of the 1st seat surface 21F which supports a seated person's buttocks, and the 2nd seat surface 22F which supports a seated person's upper thigh.
- the second seating surface 22F has an end surface 221F and a main surface 10F.
- the end surface 221F and the front and rear portions thereof are formed of a hard material seat plate 230F made of a relatively hard material, and the rear portion of the hard material seat plate 230F is formed of a hard material seat. It is formed of a soft material seat plate 232F made of a relatively soft material softer than the plate 230F.
- the hard material seat plate 230F and the soft material seat plate 232F are fixed by adhering the contact surfaces with an adhesive or sewing them together.
- the hard material seat plate 230F and the soft material plate 232F constitute one seat plate 3F.
- the upper surface of the hard material seat plate 230F has an end surface 221F at an intermediate portion in the front-rear direction. Then, the upper surface of the hard material seat plate 230F is a portion on the rear side of the end surface 221F, forms the first seat surface 21F together with the upper surface of the soft material seat plate 232F, and other portions (the end surface 221F and the main surface 10F).
- the second seating surface 22F is formed.
- the material of the hard material seat plate 230F is preferably a material that is unlikely to cause dents due to the weight of the human body, like the seat plate 3 constituting the sitting tool 1 according to the first embodiment.
- a high-density fabric with small shrinkage such as wood or canvas, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, or the like.
- TPE thermoplastic elastomer
- the hardness is preferably 5 to 120, and more preferably 40 to 90.
- the material of the soft material seat plate 232F is preferably softer than the hard material seat plate 230F and has a cushioning property.
- a material for example, a cloth, a high-density cloth, a foamed material such as a sponge, a rubber material, a plastic material such as a thermoplastic elastomer (TPE), an EVA resin, or the like having cushioning properties can be used.
- the forward movement of the pair of sitting bones 911 and 911 of the seated person is restricted by the end face 221F.
- the upper thigh and the sciatic bone of the seated person are supported by the hard material seat plate 230F.
- the three-point fixed state of the pelvis 91 can be achieved.
- the step height of the end surface 221F can be made constant before and after the weight of the seated person is applied.
- the seated person's buttocks are supported by the soft material seat plate 232F. Thereby, the comfort in the buttocks of the seated person can be improved.
- the length L 8 in the front-rear direction of the portion extending rearward from the end surface 221F of the hard material seat plate 230F is preferably a length sufficient to support the pair of ischbones 991, 991. Is preferably 10 mm or more and 100 mm or less, and more preferably 30 mm or more and 50 mm or less.
- the preferred values of the length L 4 in the front-rear direction of the first seat surface 21F and the length L 3 in the front-rear direction of the main surface 10F of the second seat surface 22F are those of the sitting tool 1 described in the first embodiment.
- the length L 1 in the front-rear direction of the first seat surface 21 and the length L 2 in the front-rear direction of the main surface 10 of the second seat surface 22 are the same.
- the step height of the end surface 221F can be maintained constant before and after the seating tool 1F is subjected to the weight of the seated person while sitting.
- the comfort of the person's buttocks can be improved.
- the back plate 31 of the sitting tool 1A according to the second embodiment may be provided on the rear edge portion 211F of the sitting tool 1F.
- FIG. 9 is a perspective view showing an eighth embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1K of the present embodiment is composed of one seat plate 3K, similar to the sitting tool 1D of the fifth embodiment, and the seat plate 3K is convex in an arc shape in the direction of the second seating surface 22K.
- the first bearing surface 21K is provided. Accordingly, an end surface 221K on the first seating surface 21K side of the second seating surface 22K, which becomes a stepped portion, is formed to be curved or bent so as to be convex forward when viewed in plan.
- the sitting tool 1K of the present embodiment can be fixed so as to wrap the pair of ischials 911 and 911 by the step, and the difference in the sciatic position slightly different depending on the individual difference of the seated person.
- Absorbing can improve the sitting posture of the seated person more effectively, and the level difference along the contour shape of the sciatic bone in a plan view allows the seated person to sit more comfortably. it can.
- a preferable value of the radius of curvature of the edge on the front side of the end surface 221K when viewed in plan is, for example, 290 to 330 mm.
- the sitting tool 1K has a horizontal projection plane whose shape is an ellipse having a long axis in the left-right direction, and the lengths of the first seating surface 21K and the second seating surface 22K in the front-rear direction are the center in the left-right direction. It differs from the sitting tool 1D of the fifth embodiment in that it increases as it approaches the line (the chain line in FIG. 9).
- the main surface 10K (the second seating surface 22K excluding the end surface 221K on the first seating surface 21K side) of the second seating surface 22K is formed by a pair of left and right regions 301, 301 excluding the central region 300 in the left-right direction. Support the upper thigh.
- the length in the front-rear direction in the left and right side regions 301, 301 of the main surface 10K is long, the upper part of the thigh of the seated person is pressed against the main surface 10K and the comfort of the seated person is reduced. Accordingly, the length in the front-rear direction in the left and right side regions 301, 301 of the main surface 10K is preferably shorter.
- the main surface 10K of the second seating surface 22K, the left and right sides of the region 301 and 301, the maximum length L 10 of the front-rear direction, of the monodentate surface 21K, the maximum length L 11 of the longitudinal It is short.
- the upper part of the thigh of the seated person is prevented from being widely pressed against the second seating surface 22K, so that the seated person can sit comfortably for a long time, and the sitting tool 1K is configured to be extremely compact. be able to.
- the center region 300 in the left-right direction on the main surface 10K of the second seating surface 22K is located between the pair of upper thighs of the seated person and sandwiches the center line in the left-right direction of the main surface 10K.
- the first seating surface 21 ⁇ / b> K has a function of preventing the sitting tool 1 ⁇ / b> K from moving forward by being pressed by the weight applied from the buttocks. Therefore, the front-rear direction of the maximum length L 11 of the monodentate surface 21K is required weight from the buttocks is the applied length such sufficient. On the other hand, when the front-rear direction of the maximum length L 11 of the monodentate surface 21K is too long, it can not be achieved with three-point fixed state of the pelvis 91. In this respect, longitudinal direction of maximum length L 11 of the monodentate surface 21K is preferably 70mm or more 250mm or less.
- the maximum length L 11 in the front-rear direction of the first seating surface 21K is, for example, 100 mm or more and 200 mm or less in order to be able to support adult men and adult women having a standard body shape. It is preferably 150 mm or more and 170 mm or less, and for example, 70 mm or more and 150 mm or less is preferable in order to be able to cope with children such as elementary school students or less. Further, the maximum length L 11 is, for example, because the spine 92 is that as much as possible even sitting position a elderly like bent convexly backward good, it is 250mm or less than 200mm preferable.
- the second seating surface 22K supports the upper part of the thigh of the seated person in the regions 301 on both the left and right sides of the main surface 10K, and forms a step composed of the end surface 221K on the first seating surface 21K side. It has a function of restricting 911 from moving forward.
- the main surface 10K of the second seating surface 22K, the left and right sides of the region 301, the maximum length L 10 of the front-rear direction, and not involved in achieving a three-point fixed state also, the maximum length When the L 10 is long, undesirable that amount, it becomes possible to reduce the comfort of the seated person upper thigh wide pressed against by the occupant in the second seat surface 22K, from the viewpoint of compactness of the seat member .
- the maximum length L 10 is shorter it is preferable, it is preferable that in particular is 150mm or less, more preferably 90mm or less, and more preferably 40mm or less.
- the maximum length L 10 is too short, the case of using a relatively low material hardness, the second seat surface 22K by weight applied from the seat occupant is likely to deform, using a relatively high material hardness conversely In this case, the comfort of the seated person is reduced because the portion of the second seating surface 22K bites into the upper part of the thigh of the seated person. From this point of view, the length L 10 is preferably 3mm or more.
- the first seat surface 21K extends over the entire length of the seat plate 3K in the left-right direction of the sitting tool 1K without being obstructed by the step.
- the right and left sides of the first seat surface 21K are not provided with anything that restricts the pelvis 91 of the seated person.
- the step does not press the left and right sides of the occupant's buttocks, and the first seating surface 21K supports the occupant's buttocks so that the occupant can sit comfortably without feeling a sense of pressure on the buttocks. Can do.
- the length of the step in the left-right direction is equal to or equal to the distance between the pair of ischials. As long as it is more than that, the three-point fixed state can be achieved without problems. Therefore, for example, the length of the step in the left-right direction can be shortened to be equal to the distance between the pair of ischies, and the sitting tool 1K can be configured compactly.
- the end surface 221K on the first seating surface 21K side of the second seating surface 22K forms a step with respect to the first seating surface 21K, and has a function of restricting the pair of seated bones 911, 911 from moving forward.
- the step height H 11 of the end face 221K is similar to the step height H 1 of the end face 221 of the seat device 1 according to the first embodiment, preferably at 3mm than 30mm or less, at 3mm or 20mm or less More preferably, it is 8 mm or more and 15 mm or less.
- the size and material of the sitting tool 1K are the same as those of the sitting tool 1 of the first embodiment, and thus the description thereof is omitted.
- the value of the angle formed by the end surface 221K and the first seating surface 21K is a value measured in the longitudinal section of the sitting tool 1K passing through the center line in the left-right direction of the seating plate 3K (the one-dot chain line in FIG. 9). The value is the same as the angle ⁇ 1 formed in the first embodiment.
- the upper part of the thigh of the seated person can be prevented from being widely pressed against the second seating surface 22K, and the seated person can sit comfortably for a long time.
- the sitting tool 1K can be configured to be extremely compact.
- FIG. 10 is a perspective view showing a ninth embodiment of the sitting tool of the present invention.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1M of the present embodiment includes a seat plate 3M and a support body 157 that is installed on a horizontal surface 9 such as a seat surface of a chair (not shown) and supports the seat plate 3M.
- the seat plate 3M has the same structure as the seat plate 3K constituting the sitting tool 1K according to the eighth embodiment shown in FIG. Since the shape, size, and material of the seat plate 3M are the same as those of the seat plate 3K, description thereof is omitted.
- the support body 157 is placed on the horizontal plane 9.
- the support 157 includes a bottom plate 157A on which the seat plate 3M is placed, and a back plate 157B extending from the end of the bottom plate 157A on the first seating surface 21M side of the seat plate 3M substantially perpendicularly to the bottom plate 157A. And have.
- the bottom plate 157A and the back plate 157B are integrally formed.
- the back plate 157B may extend from the end of the bottom plate 157A on the first seating surface 21M side of the seat plate 3M, and may extend substantially perpendicular to the bottom plate 157A only at a part thereof.
- the bottom plate 157 ⁇ / b> A of the support body 157 has a function of supporting the seat plate 3 ⁇ / b> M on the upper surface thereof while being placed on the horizontal surface 9.
- the seat plate 3M is fixed on the bottom plate 157A of the support body 157 using an adhesive or a fastener.
- FIG. 10 when the shape of the horizontal projection surface of the bottom plate 157A is formed substantially the same as the shape of the horizontal projection surface of the seat plate 3M, a compact sitting tool 1M can be obtained.
- the back plate 157B of the support body 157 has a function of restricting the movement of a person sitting on the seat plate 3M to the rear of the sacrum 912.
- the pelvis 91 of the seated person is supported by the step of the end surface 221M on the first seating surface 21M side of the second seating surface 22M of the seat plate 3M while the forward movement of the pair of sciatic bones 911 and 911 is restricted.
- the back movement of the sacrum 912 is restricted by the back plate 157B of the body 157, and a three-point fixed state is achieved.
- the angle formed between the bottom plate 157A and the back plate 157B is preferably substantially perpendicular, specifically 90 °.
- the angle is preferably 120 ° or less and more preferably 90 ° or more and 95 ° or less.
- the height H 12 of the back plate 157B is for the first monodentate surface 21M, it preferably at least 50mm 350mm or less, and 100mm or more 210mm or less Is more preferable.
- the support body 157 is preferably made of a material that is unlikely to cause a dent in the bottom plate 157A or the back plate 157B to fall backward depending on the weight of the user.
- plastic materials such as wood and fiber reinforced plastic (FRP) can be used.
- FRP wood and fiber reinforced plastic
- the sitting tool 1M when using the sitting tool 1M using a chair, a person who sits down makes the back plate 157B of the support 157 face the wall surface 8 such as the front surface of the back plate of the chair (not shown), The sitting tool 1M is placed on the horizontal surface 9. At this time, it is preferable to align the front edge portion 222M of the seat plate 3M with the front edge portion of the horizontal surface 9 opposite to the wall surface 8. Thereby, when the human body is seated on the sitting tool 1M, it is possible to avoid the portion on the back side of the knee of the thigh from being placed on the horizontal plane 9, and to improve the comfort of the seated person.
- the maximum distance L 12 front-rear direction of the seat device 1M is a three-point fixed state Is preferably 70 mm or more and 250 mm or less. More specifically, the distance L 12 is, for example, in order to enable corresponding adult male and adult female with standard type is preferably 100mm or more 200mm or less, is 150mm or more 170mm or less More preferably, for example, 70 mm or more and 150 mm or less is preferable in order to be able to cope with a child or the like of an elementary school student or less. Further, the distance L 12 is, for example, because the spine 92 is that as much as possible even sitting position a elderly like bent convexly backward satisfactory is preferably 250mm or less than 200 mm.
- the seat plate of the chair (not shown) is formed of a soft material, the back plate of the chair is greatly inclined backward, and further, the chair is not used. Even when 3M is placed on a horizontal surface such as a seat surface of a chair and the three-point fixed state cannot be achieved, the three-point fixed state can be achieved only by installing the sitting tool 1M on the horizontal surface.
- the sitting tool 1M can be configured to be smaller than the chair, so that the storage property is good and the carrying is convenient.
- the seat plate 3M and the support 157 may be configured separately without being fixed to each other. Accordingly, when the user is seated, the lower end portion of the back plate 157B of the support body 157 and the first seat surface 21M side of the second seat surface 22M of the seat plate 3M according to the size of his / her pelvis. the end surface 221M, can be adjusted in the longitudinal direction up to a distance L 12 of the seat member 1M. Accordingly, it is possible to cope with a slightly different size of the pelvis 91 depending on individual differences of seated persons. In this case, anti-slip means (not shown) may be provided on the back surface of the seat plate 3M.
- the anti-slip means can be realized, for example, by forming the back surface on an uneven surface or attaching an anti-slip sheet to the back surface.
- position adjusting means (not shown) for adjusting the position of the seat plate 3M in the front-rear direction with respect to the support body 157 may be provided instead of providing the anti-slip means.
- the position adjusting means forms a slit extending in the front-rear direction on the bottom plate 157A of the support body 157 at the center in the left-right direction of the support body 157, and a protrusion extending downward from the bottom surface of the seat plate 3M on the seat plate 3M.
- anti-slip means may be provided on the back surface of the bottom plate 157A of the support 157.
- the anti-slip means can be realized, for example, by forming the back surface on an uneven surface, attaching a non-slip sheet to the back surface, or applying an adhesive to the back surface.
- the seat plate 3 constituting the sitting tool 1 according to the first embodiment
- the seat plate 3B constituting the sitting tool 1B according to the third embodiment
- the fourth embodiment A seat plate 3C (FIG. 5) constituting the sitting tool 1C, a seat plate 3D (FIG. 6) constituting the sitting tool 1D according to the fifth embodiment, and a seat plate 3E (see FIG. 6) constituting the sitting tool 1E according to the sixth embodiment. 7) or a seat plate 3F (FIG. 8) constituting the seat 1F according to the seventh embodiment may be used instead of the seat plate 3M of the seat 1M according to this embodiment.
- FIG. 11 is a perspective view which shows 10th Embodiment of the sitting tool of this invention with the example of its usage.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1J of the present embodiment is installed on the seat plate 3J, the seat surface of the chair 156, and is provided vertically on the front surface of the back plate 152B of the support member 152 and the support member 152 that supports the seat plate 3J. And a pair of cushions 153, 154.
- the seat plate 3J has the same structure as the seat plate 3K constituting the sitting tool 1K according to the eighth embodiment shown in FIG. Since the shape, size, and material of the seat plate 3J are the same as those of the seat plate 3K, description thereof is omitted.
- the support body 152 is placed on the seat surface of the chair 156.
- the support body 152 includes a bottom plate 152A on which the seat plate 3J is placed, and a back plate 152B extending from the end portion of the bottom plate 152A on the first seating surface 21J side of the seat plate 3J substantially perpendicularly to the bottom plate 152A.
- the bottom plate 152A and the back plate 152B are integrally formed with each other. Note that the back plate 152B may extend from the end of the bottom plate 152A on the first seating surface 21J side of the seat plate 3J and may extend substantially perpendicularly upward with respect to the bottom plate 152A only at a part thereof.
- the bottom plate 152 ⁇ / b> A of the support body 152 has a function of supporting the seat plate 3 ⁇ / b> J on the upper surface thereof while being placed on the seat surface of the chair 156. From this viewpoint, it is preferable that the upper surface of the bottom plate 152A has an area equal to or larger than the seat plate 3J.
- the back plate 152B of the support body 152 has a function of restricting the movement of a person sitting on the seat plate 3J to the rear of the sacrum 912 via the lower cushion 153.
- the pelvis 91 of the seated person is restricted from moving forward by the pair of sciatic bones 911 and 911 by the step formed by the end surface 221J of the second seating surface 22J of the seat plate 3J on the first seating surface 21J side.
- the back movement of the sacrum 912 is restricted by the back plate 152B of the support body 152 via the side cushion 153, and a three-point fixed state is achieved.
- the angle formed between the bottom plate 152A and the back plate 152B is preferably substantially perpendicular, specifically, 90 °.
- the angle is preferably 120 ° or less and more preferably 90 ° or more and 95 ° or less.
- the height of the back plate 152B with respect to the first seating surface 21J when the seat plate 3J is placed is preferably 50 mm or greater and 350 mm or less, and more preferably 100 mm or greater and 210 mm or less.
- the support body 152 is preferably made of a material that is unlikely to cause a dent in the bottom plate 152A or the back plate 152B to fall backward depending on the weight of the user.
- plastic materials such as wood and fiber reinforced plastic (FRP) can be used.
- FRP wood and fiber reinforced plastic
- the seat plate 3J can be used as the seat of the chair 156 such that the seat plate 156A of the chair 156 is formed of a soft material, or the back plate 156B of the chair 156 is greatly inclined backward. Even if the three-point fixed state cannot be achieved even when placed on the surface, the three-point fixed state can be achieved.
- the seat plate 3J is fixed on the bottom plate 152A of the support 152 by a fixing means 155 such as an adhesive.
- a pair of cushions 153 and 154 are vertically attached to the front surface of the back plate 152B of the support body 152, that is, the surface facing the human body.
- the rear surfaces of the cushions 153 and 154 are fixed to the back plate 152B of the support body 152 with an adhesive or the like.
- the front surfaces of the cushions 153 and 154 are preferably parallel to the front surface of the back plate 152B of the support 152.
- the lower cushion 153 is in contact with the sacrum 912 of the person to be seated to fix the position of the sacrum 912 and has a function of mitigating an impact when the sacrum 912 is pressed against the back plate 152B.
- the lower cushion 153 is 50 mm or more and 350 mm from the first seating surface 21J of the seat plate 3J when the seat plate 3J is placed so that the lower cushion 153 can contact the sacrum 912 of the person seated on the seat plate 3J. It is preferable to arrange within the following height range, and more preferably within the height range of 100 mm to 210 mm.
- the upper cushion 154 has a function of urging the seated person to maintain the natural S-shaped curve of the spine 92 and mitigating an impact when the spine 92 is pressed against the back plate 152B.
- the seat plate 3J has an elliptical shape with a horizontal projection surface that is long in the left-right direction.
- the shape of the horizontal projection surface of the seat plate 3J is not limited to an ellipse, and can be any shape such as a rectangle, a circle, a trapezoid, a sector, or a combination of some of these shapes.
- the maximum distance in the front-rear direction of the sitting tool 1J between the lower cushion 153 and the end surface 221J on the first seating surface 21J side of the second seating surface 22J of the seat plate 3J is preferably 70 mm or more and 250 mm or less.
- the distance is preferably 100 mm or more and 200 mm or less, and preferably 150 mm or more and 170 mm or less in order to be able to cope with adult men and adult women having a standard body shape.
- the distance is preferably 200 mm or more and 250 mm or less in order to make the sitting posture as good as possible even for an elderly person whose back 92 is bent convexly rearward.
- the lower cushion 153 abuts against the sacrum 912 of the person to be seated to fix the position of the sacrum 912 and the sacrum 912 is the back plate.
- the impact when pressed against 152B can be reduced.
- the upper cushion 154 prompts the seated person to maintain the natural S-shaped curve of the spine 92, and also reduces the impact when the spine 92 is pressed against the back plate 152B. it can.
- only one of the lower cushion 153 and the upper cushion 154 may be provided.
- the height of the back plate 152B of the support body 152 can be lowered accordingly, and the sitting tool 1J can be further reduced in size.
- the support body 152 and the seat plate 3J may be configured as separate bodies without being fixed to each other. Accordingly, when the user is seated, the distance between the lower cushion 153 and the end surface 221J on the first seating surface 21J side of the second seating surface 22J of the seat plate 3J is determined according to the size of his / her pelvis. Can be adjusted. Accordingly, it is possible to cope with a slightly different size of the pelvis 91 depending on individual differences of seated persons.
- anti-slip means (not shown) may be provided on the back surface of the seat plate 3J. The anti-slip means can be realized, for example, by forming the back surface on an uneven surface or attaching an anti-slip sheet to the back surface.
- position adjusting means for adjusting the position of the seat plate 3J in the front-rear direction with respect to the support body 152 may be provided instead of providing the anti-slip means.
- the position adjusting means for example, forms a slit extending in the front-rear direction on the bottom plate 152A of the support 152 at the center in the left-right direction of the support 152, and a protrusion extending downward from the bottom surface of the seat plate 3J on the seat plate 3J. It can be realized by providing the projection so that the projection can be displaced in the front-rear direction in the slit.
- the position adjusting means it is possible to adjust the distance between the lower cushion 153 and the end surface 221J of the seat plate 3J, while preventing the seat plate 3J from being undesirably displaced in the left-right direction with respect to the support body 152. can do.
- anti-slip means may be provided on the back surface of the bottom plate 152A of the support 152.
- the non-slip means is realized by, for example, forming the back surface of the bottom plate 152A as an uneven surface, attaching a non-slip sheet to the back surface of the bottom plate 152A, or applying an adhesive to the back surface of the bottom plate 152A. Can do.
- the seat plate 3 constituting the sitting tool 1 according to the first embodiment
- the seat plate 3B constituting the sitting tool 1B according to the third embodiment
- the fourth embodiment A seat plate 3C (FIG. 5) constituting the sitting tool 1C, a seat plate 3D (FIG. 6) constituting the sitting tool 1D according to the fifth embodiment, and a seat plate 3E (see FIG. 6) constituting the sitting tool 1E according to the sixth embodiment. 7) or a seat plate 3F (FIG. 8) constituting the seat tool 1F according to the seventh embodiment may be used instead of the seat plate 3J of the seat tool 1J according to this embodiment.
- FIGS. 12 (a) and 12 (b) are a perspective view which shows 11th embodiment of the sitting tool of this invention.
- FIG. 12B is a CC cross-sectional view of the sitting tool of FIG.
- the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
- the sitting tool 1N of this embodiment includes a seat plate 3N and a support body 158 that is installed on a horizontal surface such as a seat surface of a chair and supports the seat plate 3N.
- the seat plate 3N is different from the seat plate 3K constituting the sitting tool 1K according to the eighth embodiment shown in FIG. 9 in that the portion on the first seating surface 21N side is mainly formed in a wave shape.
- the portion on the first seating surface 21N side of the seat plate 3N has a curved protrusion and a curved recess extending in the front-rear direction on the upper surface (first seating surface 21N) and the rear surface in the left-right direction.
- the wave shape is connected alternately.
- the first seat surface 21N side portion and the second seat surface 22N side portion are integrally formed.
- the material of the seat plate 3N is preferably a material that is unlikely to cause dents due to the weight of the human body.
- a material such as a material, it is possible to use a high-density fabric with small shrinkage such as wood or canvas, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, or the like.
- TPE thermoplastic elastomer
- the hardness is preferably 5 to 120, and more preferably 40 to 90.
- the seat plate 3N is undesirably deformed by using the seat plate 3N for a long period of time while ensuring the comfort of the seated person moderately by setting the hardness within the above preferable range, in particular, the above further preferable range. Can be prevented.
- the upper ridge 140N on the first seating surface 21N side portion of the seat plate 3N can be slightly recessed depending on the weight of the user. This prevents excessive deformation in the stepped portion due to the high hardness of the seat plate 3N, and the portion of the seat plate 3N functions as a cushion when the first seating surface 21N side portion is slightly recessed. Therefore, the sitting comfort of the seated person can be improved.
- the preferred values of the maximum length L 14 in the front-rear direction of the one seat surface 21N, the length W 6 in the left-right direction of the end surface 221N of the second seat surface 22N, and the height H 12 of the step formed by the end surface 221N are shown in FIG.
- the height H 12 of the step consisting of the end surface 221N shall be construed as of the end face 221N, a height as measured from the upper end of the upper surface of the projecting portion 140N of the monodentate surface 21N.
- the first seating surface 21N of the seating plate 3N extends over the entire length of the seating plate 3N in the left-right direction of the sitting tool 1N without being obstructed by the step by the end surface 221N, and the end surface 221N is a flat surface. Since it is the same as the seat plate 3K shown in FIG. 9 in that it is curved or bent so as to protrude forward when viewed, the description thereof is omitted.
- the support body 158 placed on the horizontal plane has a bottom plate 158A on which the seat plate 3N is placed, a first back plate portion 158C, and a second back plate portion 158B.
- the first back plate portion 158C is formed integrally with the bottom plate 158A and extends upward from the rear end portion of the bottom plate 158A.
- the second back plate portion 158B is configured separately from the bottom plate 158A and the first back plate portion 158C, and is fixed to the front surface of the first back plate portion 158C by an arbitrary fixing means. Accordingly, the first back plate portion 158C and the second back plate portion 158B substantially constitute the back plate of the support body 158 of the sitting tool 1N.
- the back plate of the seating tool 1N extends from the end of the bottom plate 158A on the first seating surface 21N side of the seat plate 3N, and is substantially perpendicular to the bottom plate 158A at the second back plate portion 158B. It extends.
- the bottom plate 158A, the first back plate portion 158C, and the second back plate portion 158B may be integrally formed.
- the support body 158 is different from the support body 157 shown in FIG. 10 mainly in that a plurality of grooves 159 extending in the front-rear direction are formed on the upper surface of the bottom plate 158A.
- the groove 159 is fitted with the protrusion 141N on the back surface side of the seat plate 3N, and the seat plate 3N slides on the bottom plate 157A of the support body 157 in the front-rear direction. Dimensioned to get.
- the user can adjust the position of the seat plate 3N in the front-rear direction with respect to the second back plate portion 158B of the support body 158 when seated, and the seat plate 3N is not supported with respect to the support body 158. It is possible to suppress displacement in the left-right direction as desired.
- the groove 159 of the support 158 when the length in the front-rear direction of the groove 159 of the support 158 is formed longer than the length in the front-rear direction of the seat plate 3N, the protrusion 141N on the back surface side of the seat plate 3N When sliding in the groove 159, the groove 159 guides it more stably.
- the seat plate 3N can slide on the support body 158 in the front-rear direction while fitting with the support body 158.
- the position of the seat plate 3N in the front-rear direction with respect to the second back plate portion 158B of the support 158 can be adjusted, and the seat plate 3N is undesirably left and right with respect to the support 158. Displacement can be suppressed.
- the non-slip means is realized by, for example, forming the back surface of the bottom plate 158A as an uneven surface, attaching a non-slip sheet to the back surface of the bottom plate 158A, or applying an adhesive to the back surface of the bottom plate 158A. Can do.
- the seating tool 1N is configured by combining the seating board 3N and the support body 158.
- the seating tool may be configured only by the seating board 3N without using the support body 158.
- any of the sitting tools according to the first to eleventh embodiments described above may include a cover (not shown) that covers the entire sitting tool.
- a cover can be composed of, for example, a sheet made of stretchable cloth or the like.
- the chair of the present invention and the other chair of the present invention basically have the same seating surface as the seating surface of the sitting tool of the present invention described above. Therefore, the seat surface of the sitting tool according to each embodiment described above can be applied to the chair of the present invention and the other chair of the present invention.
- FIG. 13 is a perspective view which shows 1st embodiment of the chair of this invention and the other chair of this invention.
- 14 is a cross-sectional view taken along the line BB of FIG. 13 showing a human body seated on the chair of FIG.
- the chair 101 of this embodiment includes a first seat plate 108 that forms a first seat surface 21G, a second seat plate 109 that forms a second seat surface 22G, a back plate 103, legs 104, and a coupling plate 105. .
- the first seat plate 108 and the second seat plate 109 form one seat plate 110.
- the coupling plate 105 couples the first seat plate 108, the second seat plate 109, and the legs 104 to each other.
- a pair of legs 104 and coupling plates 105 are provided on the left and right sides of the chair 101, respectively, and each leg 104 branches to the front and rear of the chair 101. Thereby, the chair 101 is supported by four legs and becomes independent.
- the back plate 103 and the seat plate 110 are such that the front surface of the back plate 103 located on the side of the seat plate 110 (the surface facing the human body) is substantially upward above the first seat surface 21G. They are combined so as to extend at right angles, and are connected by being sandwiched between coupling plates 105 and 105 from both the left and right sides.
- the back plate 103, the first seat plate 108, the second seat plate 109, and the coupling plate 105 coupled to each other are coupled to the leg portion 104 by fastening the coupling plate 105 and the leg portion 104 with, for example, a bolt 106. Is done.
- the front surface of the back plate 103 may extend only substantially at a right angle upward with respect to the first seat surface 21G.
- the second seat surface 22G extends from the first seat surface 21G in the forward direction of the chair 101.
- the second seating surface 22G forms a step at a position higher than the first seating surface 21G by the end surface 221G on the first seating surface 21G side.
- the seating surface 2G includes a first seating surface 21G that is convex in an arc shape in the direction of the second seating surface 22G, similarly to the seating surface 2D of the sitting tool 1D according to the fifth embodiment shown in FIG. Accordingly, the end surface 221G on the first seating surface 21G side of the second seating surface 22G is formed to be curved or bent so as to be convex in the front direction of the chair 101 when viewed in plan.
- the seat surface 2G is different from the seat surface 2D in that the length of the second seat surface 22G in the front-rear direction is the longest in the vicinity of the center line in the left-right direction (the chain line in FIG. 13).
- the first seat plate 108 and the second seat plate 109 are connected to each other in a state where the second seat plate 109 overlaps the front portion of the surface of the first seat plate 108 by a pair of fasteners 107 such as left and right bolts. It is concluded.
- the first seat surface 21G is formed by a portion of the surface of the first seat plate 108 that does not overlap the second seat plate 109.
- the second seating surface 22G is the upper surface of the second seating plate 109.
- the second seating surface 22G has a rear end surface, that is, an end surface 221G on the first seating surface 21G side as an inclined surface, and is adjacent to the first seating surface 21G at the end surface 221G.
- the seated person When a human body is seated on the chair 101, the seated person places his buttocks on the first seating surface 21G and places the upper thigh on the second seating surface 22G. The seated person's buttocks are supported and the second seating surface 22G supports the seated person's upper thigh.
- the pair of sciatic bones 911 and 911 of the seated person are in contact with the end surface 221G, and the forward movement is restricted by the step by the end surface 221G, and the seated person's sacrum 912 is brought into contact with the front surface of the back plate 103. In contact therewith, the movement of the back is restricted by the front surface of the back plate 103, and a three-point fixed state is achieved.
- the first seat surface 21G extends over the entire length of the seat plate 110 in the left-right direction of the chair 101 without being obstructed by the step. For this reason, the step does not press the left and right sides of the seated person's buttocks, and the first seating surface 21G supports the seated person's buttocks, so that the seated person can sit comfortably without feeling a sense of pressure on the buttocks. Can do.
- the end surface 221G on the first seating surface 21G side of the second seating surface 22G is formed to be curved so as to protrude forward when viewed in plan.
- the chair 101 according to the present embodiment is provided with such a step due to the end surface 221G, so that the pair of sciatic bones 911 and 911 can be fixed so as to wrap around the step 221G. Absorbing the difference, the seating position of the seated person can be improved more effectively, and the level difference along the contour of the sciatic bone is seen in plan view, so that the seated person sits more comfortably. be able to.
- a preferable value of the radius of curvature of the edge on the front side of the end surface 221G when viewed in plan is, for example, 290 to 330 mm.
- the main surface 10G of the second seating surface 22G (the second seating surface 22G excluding the end surface 221G on the first seating surface 21G side) is formed by a pair of left and right regions 303, 303 excluding the center region 302 in the left-right direction. Support the upper thigh. If the length in the front-rear direction in the left and right side regions 303, 303 of the main surface 10G is long, the upper part of the thigh of the seat occupant is widely pressed against the main surface 10G, and the comfort of the seat occupant is reduced. Therefore, it is preferable that the length in the front-rear direction in the left and right side regions 303, 303 of the main surface 10G is shorter.
- the main surface 10G of the second seat surface 22G, the left and right sides of the region 303 and 303, the front-rear direction of the maximum length L 7 is, of the monodentate surface 21G, the maximum length L 6 of the front-rear direction It is short.
- the upper thigh of the seated person can be prevented from being widely pressed against the second seating surface 22G, and the seated person can sit comfortably for a long time, and the chair 101 can be configured to be extremely compact. Can do.
- the central region 302 in the left-right direction on the main surface 10G of the second seating surface 22G is located between the pair of upper thighs of the seated person and sandwiches the center line in the left-right direction of the main surface 10G.
- An area having a quarter width with respect to the length of the main surface 10G in the left-right direction is referred to.
- the maximum length L 6 longitudinal direction of the chair 101 of the monodentate surface 21G is set to be 70mm or 250mm or less.
- the maximum length L 6, for example, in order to enable corresponding adult male and adult female with standard type is preferably 100mm or more 200mm or less, 150 mm or more 170mm More preferably, it is preferably 70 mm or more and 150 mm or less in order to be able to cope with a child or the like of elementary school students or less.
- the second seating surface 22G supports the upper part of the thigh of the seated person by the regions 303 and 303 on both the left and right sides of the main surface 10G, and forms a step composed of the end surface 221G on the first seating surface 21G side. 911, 911 has a function of restricting movement forward.
- the maximum length L 7 in the front-rear direction of the chair 101 in the left and right regions 303 of the main surface 10G of the second seating surface 22G is not involved in achieving the three-point fixed state, When the maximum length L 7 is long, correspondingly, and thus reducing the comfort of the seated person thigh upper it is pressed wide seated person to a second seat surface 22G.
- the maximum length L 7 are shorter are preferred, in the present embodiment is specifically being a 150mm or less.
- the maximum length L 7 is more preferably 90mm or less, and more preferably 40mm or less.
- the maximum length L 7 is too short, if hardness is used relatively low material, the second seat surface 22G by weight applied from the seat occupant is likely to deform, using a relatively high material hardness conversely In this case, the comfort of the seated person is reduced because the portion of the second seating surface 22G bites into the upper part of the thigh of the seated person. From this point of view, the length L 7 is preferably 3mm or more.
- the height H 6 of the back plate 103 with respect to the monodentate surface 21G is preferably at least 50mm 350mm or less, still more preferably 100mm or more 210mm or less.
- the angle ⁇ 7 formed by the front surface of the back plate 103 and the first seating surface 21G is preferably substantially a right angle so that a three-point fixed state can be achieved, specifically 90 ° to 120 °. It is preferable that it is 90 ° or more and 95 ° or less.
- the maximum length in the front-rear direction of the seating surface 2G is, for example, 150 mm or more and 170 mm or less, and substantially the same as the length from the sacrum 912 to the upper thigh when the human body is seated. be able to.
- the chair 101 according to this embodiment has a length in the front-rear direction of the seating surface that is substantially the same as the length from the sacrum to the lower thigh when the human body is seated. It becomes compact and can be stored more easily.
- the first seat plate 108 and the second seat plate 109 may be integrally formed.
- the fastener 107 may be provided with an adjusting mechanism (not shown) for adjusting the separation width between the back plate 103 and the second seating surface 22G.
- the first seat plate 108 and / or the second seat plate 109 are provided with slits (through holes) corresponding to the size of the separation width to be adjustable so that the fastener 107 can move in the front-rear direction. Is exemplified.
- a tilting mechanism that tilts the back plate 103, the seat plate 110, and the coupling plate 105 integrally with respect to the leg 104 may be provided using the bolt 106 as a rotation axis.
- the leg portions 104 are provided on both sides of the chair 101, but the leg portions may be provided near the center of the back side of the seating surface (center of gravity).
- a known lifting means such as a gas cylinder may be provided on the leg.
- Storability may be further improved by configuring the chair 101 in a foldable manner.
- the length in the front-rear direction is as shown in FIG. It may be longer than 303.
- the longitudinal length of the main surface 10G, over the entire right and left direction it is preferably formed shorter than the maximum length L 7 of the longitudinal direction of the monodentate surface 21G.
- the sitting tool 1 according to the first embodiment (FIGS. 1 and 2), the sitting tool 1B according to the third embodiment (FIG. 4), the sitting tool 1C according to the fourth embodiment (FIG. 5), and the sixth embodiment.
- Sitting tool 1E (FIG. 7) according to the seventh embodiment sitting tool 1F according to the seventh embodiment (FIG. 8), sitting tool 1K according to the eighth embodiment (FIG. 9), sitting tool 1N according to the eleventh embodiment (FIG. 12) can be used instead of the seat 2G of the chair 101 according to the present embodiment.
- FIG. 15 is a perspective view showing a second embodiment of the chair of the present invention and another chair of the present invention.
- the chair 131 according to this embodiment includes a seat plate 135 having a seat surface 2H, a back plate 133, legs 134, and a fixture 138 for fixing the back plate 133 to the seat plate 135.
- the seat surface 2H has the same structure as the seat surface of the sitting tool 1D according to the fifth embodiment shown in FIG. Specifically, the seat surface 2H includes a first seat surface 21H and a second seat surface 22H.
- the end surface 221H on the first seating surface 21H side of the second seating surface 22H is formed to be curved so as to protrude forward when viewed in plan.
- the second seat surface 22H forms a step by the end surface 221H on the first seat surface 21H side.
- the fixture 138 has a pair of poles extending in the vertical direction and spaced apart from each other in the horizontal direction, and is attached to the rear end surface of the seat plate 135.
- the front surface of the back plate 133 located on the seat plate 135 side extends upward at a substantially right angle with respect to the first seat surface 21H. That is, the angle ⁇ 4 formed by the front surface of the back plate 133 and the first seat surface 21H in the longitudinal cross section in the front-rear direction is substantially perpendicular so as to achieve a three-point fixed state, specifically 90 °.
- the angle is preferably 120 ° or less and more preferably 90 ° or more and 95 ° or less.
- the back plate 133 is spaced apart from the seat plate 135 in the vertical direction, but has the same function as the back plate 103 in the chair 101 according to the first embodiment. That is, the position of the back plate 133 in the vertical direction with respect to the first seat surface 21H is set so as to be able to contact the sacrum 912 of the seated person.
- vertical distance H 7 between the lower edge and the monodentate surface 21H of the back plate 133 is preferably 10mm or more 250mm or less, and more preferably 30mm or more 70mm or less.
- the length of the main surface 10H of the second seat surface 22H in the front-rear direction is shorter than the maximum length of the first seat surface 21H in the front-rear direction over the entire region in the left-right direction. According to this configuration, the upper thigh of the seated person can be prevented from being widely pressed against the second seating surface 22H, the seated person can be comfortably seated for a long time, and the chair 131 can be configured to be extremely compact. Can do.
- the first seat surface 21H extends over the entire length of the seat plate 135 in the left-right direction of the chair 131 without being obstructed by the step.
- the right and left sides of the first seat surface 21H are not provided with anything that restricts the pelvis 91 of the seated person.
- the step does not press the left and right sides of the seated person's buttocks, and the first seating surface 21H supports the seated person's buttocks.
- the seated person can sit comfortably without feeling a sense of pressure on the buttocks. Can do.
- the three-point fixed state is satisfactory. Can be achieved. Therefore, for example, the length of the step in the left-right direction can be shortened to be equal to the distance between the pair of ischials, and the chair 131 can be configured compactly.
- Various dimensions such as the maximum length in the front-rear direction of the chair 131 in the area excluding the area are the same as those described in the first embodiment (FIG. 13).
- FIG. 16 is a perspective view showing a third embodiment of the chair of the present invention and another chair of the present invention.
- the chair 165 according to the present embodiment includes a seat plate 156A, a back plate 156B, a step forming member 161 fixed on the seat surface, and a wall surface forming member 163 fixed to the front surface of the back plate 156B.
- This chair 165 can be made by attaching a step forming member 161 and a wall surface forming member 163 to a known chair 156 whose back plate 156B is greatly inclined rearward. Then, the step forming member 161 and the portion of the seat plate 156A on the rear side of the step forming member 161 (the portion between the step forming member 161 and the back plate 156B) are combined to form one seat plate.
- the upper surface 170 and the rear end surface 171 of the step forming member 161 constitute the main surface of the second seat surface and the end surface on the first seat surface side similar to those in the sitting tool and chair according to each of the embodiments described above.
- the upper surface of the portion of the seat plate 156A on the rear side of the step forming member 161 and on the front side of the wall surface forming member 163 constitutes the first seat surface similar to that in the sitting tool or chair according to the above-described embodiments.
- the step forming member 161 forms a step with respect to the upper surface of the seat plate 156A.
- the seat 156A constituting the first seating surface supports the seated person's buttocks on the upper surface of the portion on the rear side of the step forming member 161 and on the front side of the wall surface forming member 163, and the second seat
- the upper surface 170 of the step forming member 161 constituting the surface supports the thigh of the seated person. Then, the forward movement of the pair of sciatica 911 and 911 is restricted by the end surface 171 on the rear side of the step forming member 161 that forms a step.
- step difference formation member 161 about the shape and dimension of the upper surface 170 of the level
- the step forming member 161 is attached to the upper surface of the seat plate 156A by a fixing means 162 such as an adhesive or a hook-and-loop fastener.
- the wall surface forming member 163 is attached to the front surface of the back plate 156B of the chair 156 by fixing means 164 such as an adhesive or a hook-and-loop fastener.
- the wall surface forming member 163 and the back plate 156B substantially constitute the back plate of the chair 165.
- a front surface of the back plate of the chair 165 located on the seat plate side is a front surface portion of the wall surface forming member 163 and extends upward at a substantially right angle with respect to the first seat surface.
- the movement of the person sitting on the chair 156 to the rear of the sacrum 912 is restricted by the front surface of the wall surface forming member 163.
- the wall surface forming member 163 is preferably disposed within a height range of 50 mm or more and 350 mm or less from the upper surface of the bottom plate 156A so that it can come into contact with the sacrum 912 of the person sitting on the chair 156. More preferably, it is arranged within the following height range.
- an angle ⁇ 6 formed by the front surface of the wall surface forming member 163 and the seat surface of the chair 156 in the longitudinal cross section in the front-rear direction is substantially a right angle, and specifically, 90 ° or more and 120 ° or less. Preferably, it is 90 degrees or more and 95 degrees or less.
- the step forming member 161 and the wall surface forming member 163 are preferably made of a material that does not easily cause dents due to the weight of the user.
- a material that does not easily cause dents due to the weight of the user.
- a high-density fabric with small shrinkage such as wood or canvas, a plastic material such as thermoplastic elastomer (TPE), rubber, EVA resin, or the like.
- TPE thermoplastic elastomer
- the hardness is preferably 5 to 120, and more preferably 40 to 90.
- the step forming member 161 and the wall surface forming member 163 are used over a long period of time while appropriately ensuring the comfort of the seated person. It is possible to prevent the member 161 and the wall surface forming member 163 from being undesirably deformed.
- the maximum length of the first seat surface in the front-rear direction of the chair 165 is 70 mm or more and 250 mm or less.
- the distance is preferably 100 mm or more and 200 mm or less, more preferably 150 mm or more and 170 mm or less, for example, in order to be able to cope with adult men and adult women having a standard body shape.
- it is preferably 70 mm or more and 150 mm or less.
- the distance is preferably 200 mm or more and 250 mm or less in order to make the sitting posture as good as possible even for an elderly person whose back 92 is bent convexly rearward.
- the user can maintain the three-point fixed state only by attaching the step forming member 161 and the wall surface forming member 163 to the chair 156 that cannot maintain the three-point fixed state. 165 can be obtained. Therefore, when attaching the step forming member 161 and the wall surface forming member 163, the user sets the maximum distance in the front-rear direction between the wall surface forming member 163 and the step forming member 161 according to the size of the pelvis 91. In the range of the above-mentioned value, it can adjust suitably.
- the wall surface forming member 163 may not be used.
- various dimensions such as the maximum length in the front-rear direction of the chair 165 in the second seat surface excluding the end surface on the first seat surface side, that is, the region excluding the central region in the left-right direction of the chair 165 of the main surface 170. Is the same as that described in the first embodiment (FIG. 13).
- the sitting tool and chair of the present invention are particularly suitable for application as a sitting tool and chair used for long-time work, driving, studying, theater play, sports watching, etc.
- Buildings, especially chairs built in large buildings such as auditoriums and stadiums, office chairs, nursing chairs, nursing beds, table chairs, public benches, car seats, aircraft seats, ski resorts It can be suitably used as a lift chair, a wheelchair or the like, or placed on them.
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- Orthopedics, Nursing, And Contraception (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
- Special Chairs (AREA)
Abstract
Description
座板を備えた座具において、
前記座板は、
第一座面と、
前記第一座面から連続して座具の前方向に延びる第二座面と、
を備え、
前記第二座面は、前記第一座面側の端面により、前記第一座面よりも高い位置に段差を形成し、
前記第一座面で着座者の臀部を支え、前記第二座面で着座者の大腿上部を支える際に、前記段差により着座者の坐骨が前方へ移動することを規制し、
前記第一座面は、座具の左右方向における前記座板の全長に渡って、前記段差に妨げられることなく延びていることを特徴とする。
上記本発明の座具によれば、段差により着座者の坐骨が前方へ移動することが規制されるので、着座者の着座姿勢を自然に良好なものとすることができる。
また、第一座面が、座具の左右方向における座板の全長に渡って、段差に妨げられることなく延びているので、段差は着座者の臀部の左右両側を圧迫せず第一座面で着座者の臀部を支えることとなる結果、着座者は臀部に圧迫感を感じることなく快適に着座することができる。 The sitting tool of the present invention is
In a sitting tool with a seat plate,
The seat plate is
The first seat,
A second seating surface extending continuously from the first seating surface in the front direction of the sitting tool;
With
The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
When the first seating surface supports the buttocks of the seated person and the second seating surface supports the upper part of the thigh of the seated person, the stepped portion is restricted from moving forward by the step,
The first seat surface extends over the entire length of the seat plate in the left-right direction of the sitting tool without being obstructed by the step.
According to the above-described seating tool of the present invention, since the seated person's sciatic bone is restricted from moving forward by the step, the seated position of the seated person can be naturally improved.
Further, since the first seat surface extends over the entire length of the seat plate in the left-right direction of the sitting tool without being disturbed by the step, the first step surface does not press the left and right sides of the seated person's buttocks. As a result, the seated person can sit comfortably without feeling pressure on the buttocks.
前記第二座面の前記第一座面側の端面が、平面視したときに、座具の前方向に凸となるように湾曲又は屈曲して形成されていることが好ましい。
この構成によれば、着座者の個人差によって微妙に異なる坐骨位置の違いを吸収して、より効果的に着座者の着座姿勢を良好にすることができるとともに、平面視で段差が坐骨の輪郭形状により沿ったものとなるために、着座者がより快適に着座することができる。 In the sitting tool of the present invention,
It is preferable that the end surface on the first seating surface side of the second seating surface is formed to be curved or bent so as to be convex in the front direction of the sitting tool when viewed in plan.
According to this configuration, it is possible to absorb a slightly different sciatic position difference depending on the individual difference of the seated person, and to improve the seated posture of the seated person more effectively, and the step is an outline of the sciatic bone in a plan view. Since it becomes more conforming to the shape, the seated person can sit more comfortably.
前記第一座面側の端面を除く前記第二座面の、座具の左右方向の中央領域を除く領域の、座具の前後方向の最大長さが、前記第一座面の、座具の前後方向の最大長さより短いことが好ましい。
この構成によれば、着座者の大腿上部が広く第二座面に押し付けられることを回避して、着座者が長時間快適に着座することができるとともに、座具を極めてコンパクトに構成することができる。 In the sitting tool of the present invention,
The seating tool in which the maximum length in the front-rear direction of the sitting tool in the region excluding the central region in the left-right direction of the sitting tool of the second seating surface excluding the end surface on the first seating surface side is the seating tool It is preferable to be shorter than the maximum length in the front-rear direction.
According to this configuration, the upper part of the thigh of the seated person can be prevented from being widely pressed against the second seating surface, and the seated person can sit comfortably for a long time, and the sitting tool can be configured to be extremely compact. it can.
前記第一座面の、座具の前後方向の最大長さが70mm以上250mm以下であり、前記第一座面側の端面を除く前記第二座面の、座具の左右方向の中央領域を除く領域の、座具の前後方向の最大長さが150mm以下であることが好ましい。
この構成によれば、第一座面の好適な大きさにより、着座者の臀部が第一座面上に載置され得るような大きさを確保し、座具が前方に移動するのを抑制しつつ、着座者の着座姿勢を良好にすることができる。また、着座者の大腿上部が広く第二座面に押し付けられることを回避して、着座者が長時間快適に着座することができるとともに、座具を極めてコンパクトに構成することができる。 Furthermore, in the sitting tool of the present invention,
The maximum length of the first seating surface in the front-rear direction of the sitting tool is 70 mm or more and 250 mm or less, and a central region in the left-right direction of the sitting tool of the second seating surface excluding the end surface on the first seating surface side. It is preferable that the maximum length of the sitting area in the front-rear direction of the sitting tool is 150 mm or less.
According to this configuration, the suitable size of the first seating surface ensures a size that allows the seated person's buttocks to be placed on the first seating surface and suppresses the seat from moving forward. However, the sitting posture of the seated person can be improved. Further, the upper part of the thigh of the seated person can be prevented from being widely pressed against the second seating surface, so that the seated person can sit comfortably for a long time, and the sitting tool can be configured to be extremely compact.
前記座板の前記第一座面側の端部から延びるとともに、少なくとも一部分で前記座板に対して略直角に延びる背板をさらに備える。
この構成によれば、着座者の仙骨を当接すべき、座具を載置すべき水平面に対して略直角に延在する壁面が存在しない場合でも、着座者の着座姿勢を良好にすることができる。 A preferred example of the sitting tool of the present invention is:
It further includes a back plate that extends from an end portion of the seat plate on the first seat surface side and extends at least partially at a substantially right angle to the seat plate.
According to this configuration, the seating posture of the seated person can be improved even when there is no wall surface extending substantially perpendicular to the horizontal plane on which the seating tool should be placed, which should contact the sacrum of the seated person. Can do.
前記座板を支持する支持体をさらに備え、
前記支持体は、前記座板が載置される底板と、該底板の前記座板の前記第一座面側の端部から延びるとともに、少なくとも一部分で前記底板に対して略直角に延びる背板とを有する。
この構成によれば、着座者の仙骨を当接すべき、座具を載置すべき水平面に対して略直角に延在する壁面が存在しない場合でも、着座者の着座姿勢を良好にすることができるとともに、座板と支持体とを別体に構成すれば、着座者の個人差によって微妙に異なる骨盤の大きさを吸収して、より効果的に着座者の着座姿勢を良好にすることができる。 Other preferred examples of the sitting tool of the present invention are:
A support for supporting the seat plate;
The support includes a bottom plate on which the seat plate is placed, and a back plate that extends from an end of the seat plate on the first seat surface side and extends at least partially at a right angle to the bottom plate. And have.
According to this configuration, the seating posture of the seated person can be improved even when there is no wall surface extending substantially perpendicular to the horizontal plane on which the seating tool should be placed, which should contact the sacrum of the seated person. If the seat plate and the support are configured separately, the size of the pelvis that is slightly different depending on the individual difference of the seated person can be absorbed, and the seated posture of the seated person can be improved more effectively. Can do.
座板、背板、及び脚部を備えた椅子において、
前記座板は、
第一座面と、
前記第一座面から連続して椅子の前方向に延びる第二座面と、
を備え、
前記背板の、前記座板側に位置する前面が、少なくとも一部分で、前記第一座面に対して略直角に延び、
前記第二座面は、前記第一座面側の端面により、前記第一座面よりも高い位置に段差を形成し、
前記第一座面で着座者の臀部を支え、前記第二座面で着座者の大腿上部を支える際に、前記段差により着座者の坐骨が前方へ移動することを規制するとともに、前記背板の前記前面により着座者の仙骨が後方へ移動することを規制し、
前記第一座面は、椅子の左右方向における前記座板の全長に渡って、前記段差に妨げられることなく延びており、
前記第二座面の前記第一座面側の端面が、平面視したときに、椅子の前方向に凸となるように湾曲又は屈曲して形成されていることを特徴とする。
上記本発明の椅子によれば、段差により着座者の坐骨が前方へ移動することが規制されるので、着座者の着座姿勢を自然に良好なものとすることができる。
また、第一座面が、椅子の左右方向における座板の全長に渡って、段差に妨げられることなく延びているので、段差は着座者の臀部の左右両側を圧迫せず第一座面で着座者の臀部を支えることとなる結果、着座者は臀部に圧迫感を感じることなく快適に着座することができる。
さらに、第二座面の第一座面側の端面が、平面視したときに、椅子の前方向に凸となるように湾曲又は屈曲して形成されているので、着座者の個人差によって微妙に異なる坐骨位置の違いを吸収して、効果的に着座者の着座姿勢を良好にすることができるとともに、平面視で段差が坐骨の輪郭形状に沿ったものとなるために、着座者が快適に着座することができる。 The chair of the present invention
In a chair with a seat plate, a back plate, and legs,
The seat plate is
The first seat,
A second seat surface extending continuously from the first seat surface in the front direction of the chair;
With
A front surface of the back plate located on the side of the seat plate extends at least partially at a substantially right angle to the first seat surface;
The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
When the first seat surface supports the buttocks of the seated person and the second seat surface supports the upper part of the thigh of the seated person, the back plate restricts the seated person's ischi from moving forward by the step. Restricting the sacrum of the seated person to move backward by the front of the
The first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step,
An end surface of the second seat surface on the first seat surface side is formed to be curved or bent so as to be convex in the front direction of the chair when viewed in plan.
According to the chair of the present invention described above, the seated person's sitting posture can be naturally improved because the seated person's sciatic bone is restricted from moving forward by the step.
Moreover, since the first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step, the step does not press on the left and right sides of the seated person's buttocks. As a result of supporting the seated person's buttocks, the seated person can sit comfortably without feeling a sense of pressure on the buttocks.
Furthermore, since the end surface of the second seat surface on the first seat surface side is formed to be curved or bent so as to be convex in the front direction of the chair when viewed in plan, it is subtle depending on the individual difference of the seated person. This makes it possible to absorb the difference in the position of the different sciatic bones and effectively improve the sitting posture of the seated person. Can sit on.
座板、背板、及び脚部を備えた椅子において、
前記座板は、
第一座面と、
前記第一座面から連続して椅子の前方向に延びる第二座面と、
を備え、
前記背板の、前記座板側に位置する前面が、少なくとも一部分で、前記第一座面に対して略直角に延び、
前記第二座面は、前記第一座面側の端面により、前記第一座面よりも高い位置に段差を形成し、
前記第一座面で着座者の臀部を支え、前記第二座面で着座者の大腿上部を支える際に、前記段差により着座者の坐骨が前方へ移動することを規制するとともに、前記背板の前記前面により着座者の仙骨が後方へ移動することを規制し、
前記第一座面は、椅子の左右方向における前記座板の全長に渡って、前記段差に妨げられることなく延びており、
前記第一座面の、椅子の前後方向の最大長さが70mm以上250mm以下であり、前記第一座面側の端面を除く前記第二座面の、椅子の左右方向の中央領域を除く領域の、椅子の前後方向の最大長さが150mm以下であることを特徴とする。
この本発明の他の椅子によれば、第一座面の好適な大きさにより、着座者の臀部が第一座面上に載置され得るような大きさを確保しつつ、着座者の着座姿勢を良好にすることができる。また、着座者の大腿上部が広く第二座面に押し付けられることを回避して、着座者が長時間快適に着座することができるとともに、椅子を極めてコンパクトに構成することができる。 Other chairs of the present invention
In a chair with a seat plate, a back plate, and legs,
The seat plate is
The first seat,
A second seat surface extending continuously from the first seat surface in the front direction of the chair;
With
A front surface of the back plate located on the side of the seat plate extends at least partially at a substantially right angle to the first seat surface;
The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
When the first seat surface supports the buttocks of the seated person and the second seat surface supports the upper part of the thigh of the seated person, the back plate restricts the seated person's ischi from moving forward by the step. Restricting the sacrum of the seated person to move backward by the front of the
The first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step,
The maximum length of the first seat surface in the front-rear direction of the chair is 70 mm or more and 250 mm or less, and the region of the second seat surface excluding the end surface on the first seat surface side excluding the central region in the left-right direction of the chair. The maximum length of the chair in the front-rear direction is 150 mm or less.
According to the other chair of the present invention, the seating of the seated person is ensured by a suitable size of the first seating surface, while ensuring a size such that the buttocks of the seated person can be placed on the first seating surface. The posture can be improved. In addition, the upper thigh of the seated person can be prevented from being widely pressed against the second seat surface, so that the seated person can sit comfortably for a long time, and the chair can be configured to be extremely compact.
以下、本発明の座具の第一~十一実施形態について、図1~図12を参照しながら説明する。なお、以下に述べる各実施形態は本発明の一例であり、本発明は以下の実施形態に何ら限定されるものではない。 <Sitting>
Hereinafter, first to eleventh embodiments of the sitting tool of the present invention will be described with reference to FIGS. Each embodiment described below is an example of the present invention, and the present invention is not limited to the following embodiment.
まず、本発明の座具の第一実施形態について、図1及び図2を参照しながら説明する。図1は、本発明の座具の第一実施形態を示す斜視図である。図2は、図1の座具の使用態様を示す、図1におけるA-A線断面図である。 [First embodiment]
First, a first embodiment of the sitting tool of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing a first embodiment of the sitting tool of the present invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, showing a usage mode of the sitting tool of FIG.
なお、材質を熱可塑性エラストマー、ゴム、又はプラスチック材とする場合は、その硬度が5~120であることが好ましい。ここで、本明細書において「硬度」とは、JIS規格のK6253に規定されているAタイプのデュロメータを用いて、当該K6253に規定された方法で測定することにより得られる硬度をいう。硬度をこの範囲に設定することで、着座者の快適性を適度に確保しつつ、座板3を長期間にわたって使用することにより座板3が不所望に変形することを、防ぐことができる。同様の観点から、上記硬度は40~90であることがさらに好ましい。なお、少なくとも第二座面22側の部分、特に端面221によって形成された段差部分の硬度を、上記好ましい範囲、特には、上記さらに好ましい範囲とすることが望ましい。 Since the sitting tool 1 is provided with a step formed by the
When the material is a thermoplastic elastomer, rubber, or plastic material, the hardness is preferably 5 to 120. Here, “hardness” in this specification refers to the hardness obtained by measuring by a method defined in K6253 using an A type durometer defined in K6253 of JIS standard. By setting the hardness within this range, it is possible to prevent the seat plate 3 from being undesirably deformed by using the seat plate 3 for a long period of time while ensuring the comfort of the seated person. From the same viewpoint, the hardness is more preferably 40 to 90. In addition, it is desirable that the hardness of at least the portion on the
次に、本発明の座具の第二実施形態について、図3を参照しながら説明する。図3は、本発明の座具の第二実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Second Embodiment]
Next, a second embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 3 is a perspective view showing a second embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第三実施形態について、図4を参照しながら説明する。図4は、本発明の座具の第三実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Third embodiment]
Next, a third embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 4 is a perspective view showing a third embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
なお、材質を熱可塑性エラストマー、ゴム、又はプラスチック材とする場合は、その硬度が5~120であることが好ましく、40~90であることがさらに好ましい。硬度を上記の好ましい範囲、特には、上記さらに好ましい範囲に設定することで、着座者の快適性を適度に確保しつつ、座板3Bを長期間にわたって使用することにより座板3Bが不所望に変形することを、防ぐことができる。 It is preferable that the
When the material is a thermoplastic elastomer, rubber, or plastic material, the hardness is preferably 5 to 120, and more preferably 40 to 90. By setting the hardness within the above preferable range, particularly the above preferable range, the
次に、本発明の座具の第四実施形態について、図5を参照しながら説明する。図5は、本発明の座具の第四実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Fourth embodiment]
Next, a fourth embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 5 is a perspective view showing a fourth embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第五実施形態について、図6を参照しながら説明する。図6は、本発明の座具の第五実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Fifth embodiment]
Next, a fifth embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 6 is a perspective view showing a fifth embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第六実施形態について、図7を参照しながら説明する。図7は、本発明の座具の第六実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Sixth embodiment]
Next, a sixth embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 7 is a perspective view showing a sixth embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第七実施形態について、図8を参照しながら説明する。図8は、本発明の座具の第七実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Seventh embodiment]
Next, a seventh embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 8 is a perspective view showing a seventh embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
なお、材質を熱可塑性エラストマー、ゴム、又はプラスチック材とする場合は、その硬度が5~120であることが好ましく、40~90であることがさらに好ましい。硬度を上記好ましい範囲、特には、上記さらに好ましい範囲に設定することで、着座者の快適性を適度に確保しつつ、座板3Fを長期間にわたって使用することにより、座板3Fの特に端面221F並びにその前側及び後側の部分で座板3Fが不所望に変形することを、防ぐことができる。 The upper surface of the hard
When the material is a thermoplastic elastomer, rubber, or plastic material, the hardness is preferably 5 to 120, and more preferably 40 to 90. By setting the hardness within the above preferable range, particularly the above preferable range, the
次に、本発明の座具の第八実施形態について、図9を参照しながら説明する。図9は、本発明の座具の第八実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Eighth embodiment]
Next, an eighth embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 9 is a perspective view showing an eighth embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第九実施形態について、図10を参照しながら説明する。図10は、本発明の座具の第九実施形態を示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Ninth embodiment]
Next, a ninth embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 10 is a perspective view showing a ninth embodiment of the sitting tool of the present invention. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第十実施形態について、図11を参照しながら説明する。図11は、本発明の座具の第十実施形態をその使用態様例とともに示す斜視図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Tenth embodiment]
Next, a tenth embodiment of the sitting tool of the present invention will be described with reference to FIG. FIG. 11: is a perspective view which shows 10th Embodiment of the sitting tool of this invention with the example of its usage. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
次に、本発明の座具の第十一実施形態について、図12(a)、図12(b)を参照しながら説明する。図12(a)は、本発明の座具の第十一実施形態を示す斜視図である。図12(b)は、図12(a)の座具のC-C断面図である。なお、本実施形態の説明において、既に説明した実施形態と重複する部分の構成及び作用の説明を省き、異なる部分を中心に説明する。 [Eleventh embodiment]
Next, an eleventh embodiment of the sitting tool of the present invention will be described with reference to FIGS. 12 (a) and 12 (b). Fig.12 (a) is a perspective view which shows 11th embodiment of the sitting tool of this invention. FIG. 12B is a CC cross-sectional view of the sitting tool of FIG. In the description of the present embodiment, the description of the configuration and operation of the same parts as those of the above-described embodiments will be omitted, and the description will focus on the different parts.
なお、材質を熱可塑性エラストマー、ゴム、又はプラスチック材とする場合は、その硬度が5~120であることが好ましく、40~90であることがさらに好ましい。硬度を上記好ましい範囲、特には、上記さらに好ましい範囲に設定することで、着座者の快適性を適度に確保しつつ、座板3Nを長期間にわたって使用することにより座板3Nが不所望に変形することを、防ぐことができる。 The material of the
When the material is a thermoplastic elastomer, rubber, or plastic material, the hardness is preferably 5 to 120, and more preferably 40 to 90. The
以下、本発明の椅子及び本発明の他の椅子の第一~三実施形態について、図13~図16を参照しながら説明する。なお、以下に述べる実施形態は本発明の一例であり、本発明は以下の実施形態に何ら限定されるものではない。 <Chair>
Hereinafter, first to third embodiments of the chair of the present invention and other chairs of the present invention will be described with reference to FIGS. The embodiment described below is an example of the present invention, and the present invention is not limited to the following embodiment.
本発明の椅子及び本発明の他の椅子の第一実施形態について図13~図14を参照しながら説明する。図13は、本発明の椅子及び本発明の他の椅子の第一実施形態を示す斜視図である。図14は、図13の椅子に人体が着座した様子を示す、図13のB-B線断面図である。本実施形態の椅子101は、第一座面21Gを形成する第一座板108、第二座面22Gを形成する第二座板109、背板103、脚部104、及び結合板105を備える。第1座板108と第2座板109とが、一つの座板110を形成する。結合板105は、第一座板108、第二座板109、及び脚部104を互いに結合する。脚部104及び結合板105は椅子101の左右にそれぞれ一対ずつ設けられ、それぞれの脚部104が椅子101の前方及び後方に分岐する。これにより、椅子101は四本の脚で支えられ、自立する。 [First embodiment]
A first embodiment of the chair of the present invention and another chair of the present invention will be described with reference to FIGS. FIG. 13: is a perspective view which shows 1st embodiment of the chair of this invention and the other chair of this invention. 14 is a cross-sectional view taken along the line BB of FIG. 13 showing a human body seated on the chair of FIG. The
次に、本発明の椅子及び本発明の他の椅子の第二実施形態について図15を参照しながら説明する。図15は、本発明の椅子及び本発明の他の椅子の第二実施形態を示す斜視図である。本実施形態の椅子131は、座面2Hを有する座板135、背板133、脚部134、及び背板133を座板135に対して固定するための固定具138を備える。 [Second Embodiment]
Next, a second embodiment of the chair of the present invention and another chair of the present invention will be described with reference to FIG. FIG. 15 is a perspective view showing a second embodiment of the chair of the present invention and another chair of the present invention. The
次に、本発明の椅子及び本発明の他の椅子の第三実施形態について、図16を参照しながら説明する。図16は、本発明の椅子及び本発明の他の椅子の第三実施形態を示す斜視図である。本実施形態に係る椅子165は、座板156Aと、背板156Bと、座面上に固定された段差形成部材161と、背板156Bの前面に固定された壁面形成部材163とを備える。この椅子165は、背板156Bが後方に大きく傾斜した公知の椅子156に、段差形成部材161及び壁面形成部材163を取り付けることにより作ることができる。そして、段差形成部材161と、座板156Aの、段差形成部材161より後側の部分(段差形成部材161と背板156Bとの間の部分)とを組み合わせて、一つの座板を形成する。 [Third embodiment]
Next, a third embodiment of the chair of the present invention and another chair of the present invention will be described with reference to FIG. FIG. 16 is a perspective view showing a third embodiment of the chair of the present invention and another chair of the present invention. The
なお、材質を熱可塑性エラストマー、ゴム、又はプラスチック材とする場合は、その硬度が5~120であることが好ましく、40~90であることがさらに好ましい。硬度を上記好ましい範囲、特には、上記さらに好ましい範囲に設定することで、着座者の快適性を適度に確保しつつ、段差形成部材161及び壁面形成部材163を長期間にわたって使用することにより段差形成部材161及び壁面形成部材163が不所望に変形することを、防ぐことができる。 The
When the material is a thermoplastic elastomer, rubber, or plastic material, the hardness is preferably 5 to 120, and more preferably 40 to 90. By setting the hardness within the above preferable range, particularly the above further preferable range, the
2、2B、2C、2D、2E、2F、2G、2H、2J、2K、2M、2N 座面
3、3A、3B、3C、3D、3E、3F、3J、3K、3M、3N 座板
4 表面部材
5 生地
7、101、131、156、165 椅子
8 壁面
9 水平面
10、10B、10C、10D、10E、10F、10G、10H、10J、10K、10M、10N 主面
11、11F、11J 裏面
12 後側座板
13 凹凸シート
21、21B、21C、21D、21E、21F、21G、21H、21J、21K、21M、21N 第一座面
22、22B、22C、22D、22E、22F、22G、22H、22J、22K、22M、22M 第二座面
31 座具の背板
71、110、135、156A 椅子の座板
72 椅子の座面
73、103、133、156B 椅子の背板
91 骨盤
92 背骨
104、134 脚部
105 結合板
106 ボルト
107 締結具
108 第一座板
109 第二座板
138 固定具
140N 上面側の突条部
141N 裏面側の突条部
152、157、158 支持体
152A、157A、158A 支持体の底板
152B、157B 支持体の背板
153 下側クッション
154 上側クッション
155、162、164 固定手段
158B 支持体の第二背板部分
158C 支持体の第一背板部分
159 溝
161 段差形成部材
163 壁面形成部材
170 段差形成部材の上面
171 段差形成部材の後側の端面
211、211B、211C、211D、211E、211F、211G、211H、211J、211K、211M、211N 後縁部
221、221B、221C、221D、221E、221F、221G、221H、221J、221K、221M、221N 第二座面の第一座面側の端面
222、222B、222C、222D、222E、222F、222G、222H、222J、222K、222M、222N 前縁部
223 筒
224 筒状充填体
225 芯材
230F 硬材質座板
232F 軟材質座板
300、302、304 中央領域
301、303、305 左右両側の領域(中央領域を除く領域)
911 坐骨
912 仙骨 1, 1A, 1B, 1C, 1D, 1E, 1F, 1J, 1K, 1M, 1N seating fixture 2, 2B, 2C, 2D, 2E, 2F, 2G, 2H, 2J, 2K, 2M, 2N seating surface 3, 3A, 3B, 3C, 3D, 3E, 3F, 3J, 3K, 3M, 3N Seat plate 4 Surface member 5 Fabric 7, 101, 131, 156, 165 Chair 8 Wall 9 Horizontal surface 10, 10B, 10C, 10D, 10E, 10F, 10G, 10H, 10J, 10K, 10M, 10N Main surface 11, 11F, 11J Back surface 12 Rear seat plate 13 Concavity and convexity sheet 21, 21B, 21C, 21D, 21E, 21F, 21G, 21H, 21J, 21K, 21M , 21N First seat surface 22, 22B, 22C, 22D, 22E, 22F, 22G, 22H, 22J, 22K, 22M, 22M Second seat surface 31 Back plate 71, 110 of the sitting tool 35, 156A Chair seat plate 72 Chair seat surface 73, 103, 133, 156B Chair back plate 91 Pelvis 92 Spine 104, 134 Leg 105 Binding plate 106 Bolt 107 Fastener 108 First seat plate 109 Second seat plate 138 Fixing tool 140N Upper surface side ridge portion 141N Back surface side ridge portion 152, 157, 158 Support body 152A, 157A, 158A Support body bottom plate 152B, 157B Support body back plate 153 Lower cushion 154 Upper cushion 155, 162, 164 fixing means 158B second back plate portion of support 158C first back plate portion of support 159 groove 161 step forming member 163 wall surface forming member 170 upper surface of step forming member 171 rear end surface 211 of step forming member, 211B, 211C, 211D, 211E, 211F, 211G, 211 , 211J, 211K, 211M, 211N Rear edges 221, 221B, 221C, 221D, 221E, 221F, 221G, 221H, 221K, 221M, 221N 222C, 222D, 222E, 222F, 222G, 222H, 222J, 222K, 222M, 222N Front edge 223 Cylinder 224 Cylinder filler 225 Core material 230F Hard material seat plate 232F Soft material seat plate 300, 302, 304 Central region 301 , 303, 305 Left and right side areas (excluding the center area)
Claims (8)
- 座板を備えた座具において、
前記座板は、
第一座面と、
前記第一座面から連続して座具の前方向に延びる第二座面と、
を備え、
前記第二座面は、前記第一座面側の端面により、前記第一座面よりも高い位置に段差を形成し、
前記第一座面で着座者の臀部を支え、前記第二座面で着座者の大腿上部を支える際に、前記段差により着座者の坐骨が前方へ移動することを規制し、
前記第一座面は、座具の左右方向における前記座板の全長に渡って、前記段差に妨げられることなく延びていることを特徴とする、座具。 In a sitting tool with a seat plate,
The seat plate is
The first seat,
A second seating surface extending continuously from the first seating surface in the front direction of the sitting tool;
With
The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
When the first seating surface supports the buttocks of the seated person and the second seating surface supports the upper part of the thigh of the seated person, the stepped portion is restricted from moving forward by the step,
The said 1st seat surface is extended over the full length of the said seat board in the left-right direction of a sitting tool, without being interrupted by the said level | step difference, The sitting tool characterized by the above-mentioned. - 前記第二座面の前記第一座面側の端面が、平面視したときに、座具の前方向に凸となるように湾曲又は屈曲して形成されている、請求項1に記載の座具。 The seat according to claim 1, wherein an end surface of the second seat surface on the first seat surface side is formed to be curved or bent so as to be convex in the front direction of the sitting tool when viewed in plan. Ingredients.
- 前記第一座面側の端面を除く前記第二座面の、座具の左右方向の中央領域を除く領域の、座具の前後方向の最大長さが、前記第一座面の、座具の前後方向の最大長さより短い、請求項1又は2に記載の座具。 The seating tool in which the maximum length in the front-rear direction of the seating tool in the region excluding the central region in the left-right direction of the seating tool of the second seating surface excluding the end surface on the first seating surface side is the seating tool in the first seating surface. The sitting tool according to claim 1 or 2, which is shorter than the maximum length in the front-rear direction.
- 前記第一座面の、座具の前後方向の最大長さが70mm以上250mm以下であり、前記第一座面側の端面を除く前記第二座面の、座具の左右方向の中央領域を除く領域の、座具の前後方向の最大長さが150mm以下である、請求項1~3のいずれか1項に記載の座具。 The maximum length of the first seating surface in the front-rear direction of the sitting tool is 70 mm or more and 250 mm or less, and a central region in the left-right direction of the sitting tool of the second seating surface excluding the end surface on the first seating surface side. The sitting tool according to any one of claims 1 to 3, wherein a maximum length in a front-rear direction of the sitting tool in an excluding region is 150 mm or less.
- 前記座板の前記第一座面側の端部から延びるとともに、少なくとも一部分で前記座板に対して略直角に延びる背板をさらに備える、請求項1~4のいずれか1項に記載の座具。 The seat according to any one of claims 1 to 4, further comprising a back plate extending from an end of the seat plate on the first seat surface side and extending at least partially at a substantially right angle to the seat plate. Ingredients.
- 前記座板を支持する支持体をさらに備え、
前記支持体は、前記座板が載置される底板と、該底板の前記座板の前記第一座面側の端部から延びるとともに、少なくとも一部分で前記底板に対して略直角に延びる背板とを有する、請求項1~4のいずれか1項に記載の座具。 A support for supporting the seat plate;
The support includes a bottom plate on which the seat plate is placed, and a back plate that extends from an end of the seat plate on the first seat surface side and extends at least partially at a right angle to the bottom plate. The sitting tool according to any one of claims 1 to 4, comprising: - 座板、背板、及び脚部を備えた椅子において、
前記座板は、
第一座面と、
前記第一座面から連続して椅子の前方向に延びる第二座面と、
を備え、
前記背板の、前記座板側に位置する前面が、少なくとも一部分で、前記第一座面に対して略直角に延び、
前記第二座面は、前記第一座面側の端面により、前記第一座面よりも高い位置に段差を形成し、
前記第一座面で着座者の臀部を支え、前記第二座面で着座者の大腿上部を支える際に、前記段差により着座者の坐骨が前方へ移動することを規制するとともに、前記背板の前記前面により着座者の仙骨が後方へ移動することを規制し、
前記第一座面は、椅子の左右方向における前記座板の全長に渡って、前記段差に妨げられることなく延びており、
前記第二座面の前記第一座面側の端面が、平面視したときに椅子の前方向に凸となるように湾曲又は屈曲して形成されていることを特徴とする、椅子。 In a chair with a seat plate, a back plate, and legs,
The seat plate is
The first seat,
A second seat surface extending continuously from the first seat surface in the front direction of the chair;
With
A front surface of the back plate located on the side of the seat plate extends at least partially at a substantially right angle to the first seat surface;
The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
When the first seat surface supports the buttocks of the seated person and the second seat surface supports the upper part of the thigh of the seated person, the back plate restricts the seated person's ischi from moving forward by the step. Restricting the sacrum of the seated person to move backward by the front of the
The first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step,
The chair according to claim 1, wherein an end surface of the second seat surface on the first seat surface side is curved or bent so as to be convex in the front direction of the chair when viewed in plan. - 座板、背板、及び脚部を備えた椅子において、
前記座板は、
第一座面と、
前記第一座面から連続して椅子の前方向に延びる第二座面と、
を備え、
前記背板の、前記座板側に位置する前面が、少なくとも一部分で、前記第一座面に対して略直角に延び、
前記第二座面は、前記第一座面側の端面により、前記第一座面よりも高い位置に段差を形成し、
前記第一座面で着座者の臀部を支え、前記第二座面で着座者の大腿上部を支える際に、前記段差により着座者の坐骨が前方へ移動することを規制するとともに、前記背板の前記前面により着座者の仙骨が後方へ移動することを規制し、
前記第一座面は、椅子の左右方向における前記座板の全長に渡って、前記段差に妨げられることなく延びており、
前記第一座面の、椅子の前後方向の最大長さが70mm以上250mm以下であり、前記第一座面側の端面を除く前記第二座面の、椅子の左右方向の中央領域を除く領域の、椅子の前後方向の最大長さが150mm以下であることを特徴とする、椅子。 In a chair with a seat plate, a back plate, and legs,
The seat plate is
The first seat,
A second seat surface extending continuously from the first seat surface in the front direction of the chair;
With
A front surface of the back plate located on the side of the seat plate extends at least partially at a substantially right angle to the first seat surface;
The second seating surface forms a step at a position higher than the first seating surface by the end surface on the first seating surface side,
When the first seat surface supports the buttocks of the seated person and the second seat surface supports the upper part of the thigh of the seated person, the back plate restricts the seated person's ischi from moving forward by the step. Restricting the sacrum of the seated person to move backward by the front of the
The first seat surface extends over the entire length of the seat plate in the left-right direction of the chair without being obstructed by the step,
The maximum length of the first seat surface in the front-rear direction of the chair is 70 mm or more and 250 mm or less, and the region of the second seat surface excluding the end surface on the first seat surface side excluding the central region in the left-right direction of the chair. The maximum length of the chair in the front-rear direction is 150 mm or less.
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EP12843509.6A EP2769645A4 (en) | 2011-10-23 | 2012-10-18 | Sitting tool and chair |
CN201280052109.9A CN103889277A (en) | 2011-10-23 | 2012-10-18 | Sitting tool and chair |
US14/353,592 US20140290667A1 (en) | 2011-10-23 | 2012-10-18 | Sitting tool and chair |
JP2013540642A JP6091423B2 (en) | 2011-10-23 | 2012-10-18 | Seats and chairs |
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Country | Link |
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US (1) | US20140290667A1 (en) |
EP (1) | EP2769645A4 (en) |
JP (1) | JP6091423B2 (en) |
CN (1) | CN103889277A (en) |
WO (1) | WO2013061552A1 (en) |
Cited By (6)
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CN104083017A (en) * | 2014-06-10 | 2014-10-08 | 郭赞兴 | Spine posture protection cushion |
WO2015196344A1 (en) * | 2014-06-24 | 2015-12-30 | 郭赞兴 | Cushion for protecting spinal posture |
WO2016052683A1 (en) * | 2014-09-30 | 2016-04-07 | 村上 潤 | Seating aid |
JP2016073563A (en) * | 2014-10-08 | 2016-05-12 | タカノ株式会社 | Work chair |
JP2016202838A (en) * | 2015-04-28 | 2016-12-08 | タカノ株式会社 | Work chair with caster |
JP2019058241A (en) * | 2017-09-25 | 2019-04-18 | フィールド・クラブ株式会社 | Cushion for wheelchair |
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US10478364B2 (en) | 2014-03-10 | 2019-11-19 | Stryker Corporation | Limb positioning system |
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US9951904B2 (en) | 2015-03-24 | 2018-04-24 | Stryker Corporation | Rotatable seat clamps for rail clamp |
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JP6745211B2 (en) * | 2016-12-28 | 2020-08-26 | 株式会社ジェイエスピー | Sheet core material |
CN108887961B (en) * | 2018-06-20 | 2021-10-15 | 新华网股份有限公司 | Seat and seat-based concentration evaluation method |
CN209219658U (en) * | 2018-07-04 | 2019-08-09 | 意网有限公司 | For improving the cushion of sitting posture |
KR102136560B1 (en) * | 2018-07-30 | 2020-07-22 | 박찬욱 | A seat board for chair, and a chair comprising the same |
US11744375B2 (en) | 2021-07-14 | 2023-09-05 | Anthro Form, Llc | Seat configuration |
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JPS59111566U (en) * | 1983-01-17 | 1984-07-27 | 楠 茂宣 | sitting cushion |
JPS6253614A (en) * | 1985-08-30 | 1987-03-09 | 中島 国恭 | Chair with inclined seat plate |
JPH08502914A (en) * | 1992-11-13 | 1996-04-02 | グレーベ,ロバート・エイチ | Water sprayed foam base |
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2012
- 2012-10-18 JP JP2013540642A patent/JP6091423B2/en active Active
- 2012-10-18 US US14/353,592 patent/US20140290667A1/en not_active Abandoned
- 2012-10-18 EP EP12843509.6A patent/EP2769645A4/en not_active Withdrawn
- 2012-10-18 WO PCT/JP2012/006686 patent/WO2013061552A1/en active Application Filing
- 2012-10-18 CN CN201280052109.9A patent/CN103889277A/en active Pending
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JPS59111566U (en) * | 1983-01-17 | 1984-07-27 | 楠 茂宣 | sitting cushion |
JPS6253614A (en) * | 1985-08-30 | 1987-03-09 | 中島 国恭 | Chair with inclined seat plate |
JPH08502914A (en) * | 1992-11-13 | 1996-04-02 | グレーベ,ロバート・エイチ | Water sprayed foam base |
JPH09504443A (en) * | 1993-08-13 | 1997-05-06 | ジェイ メディカル リミテッド | Self-adjusting seat device |
JPH1057178A (en) | 1996-08-20 | 1998-03-03 | Mitsuo Nagase | Supporting structure for chair with backrest |
JPH11253267A (en) * | 1998-03-13 | 1999-09-21 | Nissan Shatai Co Ltd | Automobile seat |
JPH11309047A (en) * | 1998-04-30 | 1999-11-09 | Imamura:Kk | Chair mat |
JP2000253946A (en) * | 1999-03-11 | 2000-09-19 | Munehiro Ikuta | Chair |
JP2003070844A (en) * | 2001-08-31 | 2003-03-11 | Fumie Sato | Cushion for wheelchair |
JP3089959U (en) * | 2002-05-14 | 2002-11-22 | 志保子 田村 | I enjoy my waist |
JP2004073713A (en) * | 2002-08-22 | 2004-03-11 | Molten Corp | Mat for chair |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104083017A (en) * | 2014-06-10 | 2014-10-08 | 郭赞兴 | Spine posture protection cushion |
WO2015196344A1 (en) * | 2014-06-24 | 2015-12-30 | 郭赞兴 | Cushion for protecting spinal posture |
WO2016052683A1 (en) * | 2014-09-30 | 2016-04-07 | 村上 潤 | Seating aid |
JPWO2016052683A1 (en) * | 2014-09-30 | 2018-02-08 | 村上 潤 | Seating aid |
JP2016073563A (en) * | 2014-10-08 | 2016-05-12 | タカノ株式会社 | Work chair |
JP2016202838A (en) * | 2015-04-28 | 2016-12-08 | タカノ株式会社 | Work chair with caster |
JP2019058241A (en) * | 2017-09-25 | 2019-04-18 | フィールド・クラブ株式会社 | Cushion for wheelchair |
Also Published As
Publication number | Publication date |
---|---|
EP2769645A4 (en) | 2015-07-01 |
EP2769645A1 (en) | 2014-08-27 |
CN103889277A (en) | 2014-06-25 |
JP6091423B2 (en) | 2017-03-08 |
US20140290667A1 (en) | 2014-10-02 |
JPWO2013061552A1 (en) | 2015-04-02 |
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