JP2018149021A - Sitting posture holding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sitting posture holding tool capable of appropriately suppressing deviation of a user's sitting posture.SOLUTION: A sitting posture holding tool 1 includes: a bag-shaped cover 2 having a sitting part 2A and a back rest part 2B arranged side by side in a vertical direction; a bag-shaped air intake bag arranged within the cover 2 and having non-air permeability; an air intake mechanism 5 communicating with the inside of the air intake bag and serving to remove air from the air intake bag; and foam beads accommodated within the air intake bag. The sitting posture holding tool 1 can fix its shape by removing air from the air intake bag via the air intake mechanism 5. Thus, the sitting posture holding tool 1 can appropriately keep a sitting posture of a user in a sitting state.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sitting position holder used by being fixed to a chair.

  When a physically handicapped user sits on a chair or the like, the sitting posture is likely to be displaced, and the comfortable sitting posture often collapses. For this reason, a sitting position holder for preventing a deviation of the sitting position has been proposed. For example, Patent Document 1 discloses a cushion for holding a sitting position provided with a U-shaped cushion body. When the user sits down, the cushion for holding the sitting position sinks between the two straight portions of the cushion body. As a result, the upper body of the user is sandwiched from the left and right sides by the two straight portions of the cushion body. Moreover, a user's buttocks are hold | maintained from the lower side by the bending part of a cushion main body. For this reason, the position shift of the user's upper body and buttocks is suppressed.

JP 2017-6553 A

  In the sitting position holding cushion, the displacement of the sitting posture of the user is suppressed by the deformation of the cushion body according to the sinking between the two linear portions of the cushion body. Here, depending on the shape of the chair or the like on which the sitting position holding cushion is placed, the degree of the above-described depression may be reduced. In this case, the amount of deformation of the cushion body is also small, so that the user's body cannot be properly held. As described above, the cushion for holding the sitting position has a problem in that the shift of the sitting posture of the user may not be suppressed.

  An object of the present invention is to provide a sitting position holder that can appropriately suppress a shift in a sitting posture of a user.

  The sitting position holder of the present invention is a bag-like cover having a seat portion and a backrest portion, and a bag-like air intake bag having air permeability, and is disposed inside the seat portion of the cover, A seat bag forming a sealed space, an air bag having a back bag disposed inside the backrest portion of the cover and forming a second sealed space different from the first sealed space; and the cover Each of the seat portion and the backrest portion of the air bag and the boundary portion between the seat bag and the back bag of the air bag, and a foldable folding portion of the air bag. An air intake mechanism that communicates with the inside of the air bag and extracts air from the air bag, and a foam bead accommodated in the air bag.

  The sitting position retainer can fix the foam beads in close contact with each other in the intake bag by removing air from the intake bag via the intake mechanism. For this reason, for example, in a state where the user is seated on the sitting position holder, a part of the sitting position holder is deformed so as to be along the side portion of the leg of the user. Further, the other part of the sitting position holder is deformed along the side of the user's head and torso. Thereafter, air is extracted from the air intake bag. In this case, a part of the sitting position holder is fixed in a state along each side of the user's head, torso, and legs. That is, the entire body is supported by the sitting position holder while the user is seated. For this reason, the user's sitting posture is appropriately maintained by the sitting position holder. Therefore, the sitting position holder can appropriately suppress the deviation of the user's sitting posture.

  In addition, the sitting position holder can prevent the foam beads from moving between the seat bag and the backrest bag. Therefore, since the sitting position holding tool can prevent the uneven distribution of the foam beads, the entire body of the user can be supported uniformly. For this reason, the sitting position holding | maintenance tool can suppress further more appropriately that a user's seating attitude | position shifts | deviates.

  Furthermore, the user can arrange the seat portion along the seat surface of the chair, and arrange the backrest portion along the backrest of the chair by using the sitting position holder by folding it at the folding portion. it can. Moreover, since the sitting position holder can be reduced in size by being folded by the bent portion, it can be easily carried by the user.

  In the present invention, the backrest portion bag is two portions extending along the arrangement direction of the seat portion and the backrest portion of the cover, and is disposed separately in a direction orthogonal to the arrangement direction. A pair of body holding portions, and a head holding portion provided between the ends of the pair of body holding portions on the side opposite to the seat portion side in the arrangement direction. Good. In this case, the sitting position holder can appropriately support the user's torso from both the left and right sides by the portions corresponding to the pair of torso holders. Further, the sitting position holder can appropriately support the entire user's head by the portion corresponding to the head holding portion. Therefore, the sitting position holding tool can suppress the user's sitting posture from deviating by appropriately supporting the upper body of the user.

  In the present invention, the seat bag is two portions extending along the arrangement direction of the seat portion and the backrest portion of the cover, and is arranged separately in a direction orthogonal to the arrangement direction. A pair of first leg holding portions and a second leg holding portion provided between ends of the pair of first leg holding portions opposite to the backrest side in the arrangement direction. You may have. In this case, the sitting position holder can appropriately support the portion from the user's waist to the base of the leg from both the left and right sides by the pair of first leg holding portions. Moreover, the sitting position holder can appropriately support the knee back portion of the user's leg by the portion corresponding to the second leg holding portion. Therefore, the sitting position holder can suppress the user's seating posture from deviating by appropriately supporting the lower body of the user.

  In this invention, you may further provide the backrest cushioning material provided in the position corresponding to the part between a pair of said body holding | maintenance parts among the said covers. In this case, when the user is seated on the sitting position holder, the backrest cushioning material can be brought into contact with the back of the user. For this reason, the sitting position holder can relieve an impact when the user is seated or can prevent bed slippage.

  In this invention, you may further provide the seat cushioning material provided in the position corresponding to the part between a pair of said 1st leg holding | maintenance parts among the said covers. In this case, when the user is seated on the sitting position holder, the seat cushioning material can be brought into contact with the user's buttocks. For this reason, the sitting position holder can relieve an impact when the user is seated or can prevent bed slippage.

  In the present invention, the foamed beads may be accommodated and further provided with a plurality of bag-shaped partition bags having air permeability, and the air intake bag may store the plurality of partition bags. In this case, the sitting position holder can prevent the foam beads from being unevenly distributed in the intake bag. Therefore, when the air is extracted from the intake bag, the sitting position holder can be fixed over the entire area of the intake bag, so that the user can be uniformly supported by the entire sitting position holder. For this reason, the sitting position holding | maintenance tool can suppress further more appropriately that a user's seating attitude | position shifts | deviates.

  In the present invention, each of the partition bags may include a partition portion that partitions the internal space and divides it into two. In this case, the sitting position holder can appropriately prevent the foam beads from being unevenly distributed in the partition bag.

  In the present invention, the intake mechanism may include a seat intake mechanism for extracting air from the seat bag and a backrest intake mechanism for extracting air from the backrest bag. In this case, the sitting position holder can evacuate air separately from each of the seat bag and the backrest bag. Therefore, the sitting position holder can be in a state where only the lower half of the user is supported by the portion corresponding to the seat bag. Similarly, the sitting position holder can be in a state where only the upper body of the user is supported by the portion corresponding to the backrest portion bag. Furthermore, the sitting position holding tool can separately perform an operation of extracting air from the seat portion bag and an operation of extracting air from the backrest portion bag. Therefore, the user can efficiently perform each operation of extracting air from the sitting position holder.

  In this invention, you may further have a belt inserted in the through-hole provided in each of the said cover and the said suction bag. In this case, the sitting position holder can fix the cover and the air intake bag to the chair by the belt, so that the sitting position holder can be prevented from shifting from the chair. Further, the sitting position holding tool can prevent the relative position between the cover and the intake bag from shifting by the belt.

  In the present invention, the cover may have a pocket capable of accommodating a cold insulation agent. In this case, the sitting position holding tool can cool the user's local portion with the cooling agent while maintaining the user's sitting posture.

It is the perspective view which looked at the sitting position holder 1 from the front side. It is the perspective view which looked at the sitting position holder 1 from the rear side. 3 is a front view of a cover 2. FIG. 4 is a rear view of the cover 2. FIG. 3 is a front view of the intake bag 3. FIG.

  An embodiment embodying the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, for example, the sitting position holder 1 is used by being fixed to the chair 9 in a state in which a boundary portion between a seat portion 2A and a backrest portion 2B of a cover 2 described later is bent. The seating posture is maintained by the user sitting on the sitting position holder 1 fixed to the chair 9. In the following description, it is assumed that the object to which the sitting position holder 1 is fixed is the chair 9. However, the object to which the sitting position holder 1 is fixed is not limited to the chair 9 and may be fixed to, for example, a wheelchair. The sitting position holder 1 includes a cover 2, an intake bag 3 (see FIG. 5), an intake mechanism 5, and a belt 6.

<Cover 2>
The cover 2 has a bag shape formed by sewing the peripheral portions of two opposing substantially rectangular fabrics. The cover 2 accommodates an air intake bag 3 (see FIG. 5) described later. The cover 2 has a seat portion 2A and a backrest portion 2B. The seat 2A is placed on the seat surface 9A of the chair 9. The backrest 2 </ b> B is fixed to the backrest 9 </ b> B of the chair 9. Hereinafter, in order to facilitate the description, the direction of the cover 2 in a state where it is not bent is defined. The upper side, the lower side, the left side, the right side, the front side, and the rear side of FIG. 3 correspond to the upper side, the lower side, the left side, the right side, the front side, and the rear side, respectively, of the cover 2 that is not bent. As shown in FIG. 3, the front surface of the cover 2 is referred to as a “front surface 21”. As shown in FIG. 4, the rear surface of the cover 2 is referred to as “rear surface 22”.

  As shown in FIG. 3, the cover 2 has a first bent portion 20 that can be bent. The first bent portion 20 is formed by a seam extending linearly in the left-right direction. The first bent portion 20 is disposed below the center of the cover 2 in the vertical direction. The seating surface 9 </ b> A corresponds to a portion of the cover 2 that is lower than the first bent portion 20, and the backrest portion 2 </ b> B corresponds to a portion of the cover 2 that is higher than the first bent portion 20. The seat 2A and the backrest 2B are arranged side by side in the vertical direction. The length of the seat portion 2A in the vertical direction is approximately ½ of the length of the backrest portion 2B in the vertical direction.

  As shown in FIGS. 3 and 4, through holes 23 </ b> A and 23 </ b> B (collectively referred to as “through holes 23”), 24 </ b> A and 24 </ b> B (collectively referred to as “through holes 24”), 25 </ b> A on the side surface of the cover 2. , 25B (collectively referred to as “through hole 25”). The through holes 23 are provided on the left and right sides of the seat portion 2 </ b> A of the cover 2. The through holes 24 and 25 are provided on both the left and right sides of the backrest portion 2 </ b> B of the cover 2. The through hole 24 is disposed above the through hole 25. The through holes 23A, 24A, and 25A are respectively provided on the left side of the cover 2, and the through holes 23B, 24B, and 25B are respectively provided on the right side of the cover 2. The belt 6 </ b> A is inserted through the through hole 23. The belt 6B is inserted through the through hole 24. The belt 6 </ b> C is inserted through the through hole 25. The belts 6A to 6C are collectively referred to as “belt 6”.

  As shown in FIG. 3, a rectangular plate-shaped cushioning material (referred to as “seat cushioning material”) 26 is provided at a substantially central portion of the seat 2 </ b> A in the front surface 21 of the cover 2. A rectangular plate-shaped cushioning material (referred to as “backrest cushioning material”) 27 is provided at a substantially central portion of the backrest 2 </ b> B of the front surface 21 of the cover 2. The seat cushioning material 26 and the backrest cushioning material 27 are each made of urethane. A substantially rectangular pocket 211 is provided on the front side of the backrest cushioning material 27. The pocket 211 can contain a cooling agent.

<Intake bag 3>
As shown in FIG. 5, the intake bag 3 has substantially the same shape as the cover 2 (see FIGS. 3 and 4). The intake bag 3 is accommodated in the cover 2. Hereinafter, assuming that the intake bag 3 is accommodated in the cover 2, the definition of each direction of the cover 2 is also applied to the intake bag 3.

  The air intake bag 3 has a bag shape formed by laminating the peripheral portions of two opposing substantially rectangular non-breathable materials. The front surface and the rear surface of the intake bag 3 are joined to each other by the joint portion 30 at a position corresponding to the first bent portion 20 (see FIG. 3) while being accommodated in the cover 2. The joint portion 30 is disposed along the lower bisector among two bisectors that divide the intake bag 3 into three equal parts in the vertical direction. The joint portion 30 extends linearly in the left-right direction. The internal space of the air intake bag 3 is divided into two by the joint portion 30, and each forms an independent sealed space. The intake bag 3 can be bent at the position of the joint 30. That is, the portion of the intake bag 3 corresponding to the joint portion 30 functions as the second bent portion 30A.

  The front surface and the rear surface of the air intake bag 3 are joined to each other in a rectangular region 31 below the joint portion 30 and substantially in the center in the left-right direction. For this reason, a sealed space (referred to as “first sealed space”) below the joint portion 30 in the intake bag 3 is formed in a substantially U shape. A portion of the intake bag 3 below the joint portion 30 is referred to as a “seat portion bag 3A”. In addition, the area | region 31 opposes the back side with respect to the seat cushioning material 26 (refer FIG. 3) provided in 2 A of seats of the cover 2. As shown in FIG.

  The seat bag 3A has a pair of first leg holding part 360 and second leg holding part 363. The pair of first leg holders 360 includes a first leg holder 361 that extends in the vertical direction on the left side of the region 31, and a first leg holder 362 that extends in the vertical direction on the right side of the region 31. The first leg holding portions 361 and 362 are separated in the left-right direction across the region 31. The second leg holding portion 363 extends in the left-right direction across the lower ends of the first leg holding portions 361 and 362.

  The first sealed space of the seat bag 3A is filled with foam beads. The expanded beads are polystyrene beads having a spherical shape with a diameter of several mm. The foam beads are movable in a state where air is not removed from the first sealed space of the seat bag 3A. For this reason, the shape of the seat bag 3A can be freely deformed according to the movement of the foam beads.

  Through holes 311H and 312H (collectively referred to as “through holes 31H”) are provided below the center of the region 31 in the vertical direction. The through holes 311H and 312H are arranged side by side in the left-right direction. The through hole 311H is disposed on the left side with respect to the through hole 312H. A belt 6A (see FIG. 3) inserted through the through hole 31H through the through hole 23 (see FIG. 3) of the cover 2 is inserted. Specifically, the belt 6A is inserted into the cover 2 through the through hole 23A of the cover 2, passes through the rear side of the first leg holding portion 361 of the intake bag 3, and passes through the through hole 311H from the rear side to the front side. It is inserted toward The belt 6A passes through the front side of the region 31 of the intake bag 3 from the through hole 311H to the through hole 312H. The belt 6A is inserted through the through hole 312H from the front side toward the rear side, passes through the rear side of the first leg holding portion 362 of the intake bag 3, and is removed outside the cover 2 through the through hole 23B of the cover 2. The

  The front surface and the rear surface of the intake bag 3 are joined to each other in a rectangular region 32 that is located above the joint portion 30 and substantially in the center in the left-right direction. For this reason, the sealed space (referred to as “second closed space”) above the joint portion 30 in the intake bag 3 is formed in a substantially inverted U shape. A portion of the intake bag 3 above the joint portion 30 is referred to as a “backrest portion bag 3B”. In addition, the area | region 32 opposes the back side with respect to the backrest buffer material 27 (refer FIG. 3) provided in the backrest 2B of the cover 2. FIG.

  The backrest bag 3 </ b> B has a pair of body holding portions 370 and a head holding portion 373. The pair of body holding portions 370 includes a body holding portion 371 that extends in the vertical direction on the left side of the region 32, and a body holding portion 372 that extends in the vertical direction on the right side of the region 32. The body holding portions 371 and 372 are separated in the left-right direction across the region 32. The head holding portion 373 extends in the left-right direction across the upper end portions of the body holding portions 371 and 372.

  Division bags 381, 382, 383, and 384 (collectively referred to as “compartment bags 380”) are accommodated in the second sealed space of the back bag 3B. The division bag 380 has a bag shape formed by bonding the peripheral portions of two opposing substantially rectangular breathable materials. The compartment bag 380 is filled with foam beads. The partition bag 381 is accommodated in the body holding portion 371. The partition bag 382 is accommodated in the body holding part 372. The partition bag 383 is accommodated on the left side of the center of the head holding portion 373 in the left-right direction. The partition bag 384 is accommodated on the right side of the center of the head holding portion 373 in the left-right direction. The surface of the division bag 380 is bonded to the inner wall of the backrest bag 3B at each position. For this reason, the movement of the division bag 380 in the backrest part bag 3B is suppressed.

  The division bag 380 has the front surface and the rear surface joined to each other by the partition portion 39 at a position substantially in the center in the vertical direction. The partition part 39 extends linearly in the left-right direction. The inner space of the partition bag 380 is divided into two in the vertical direction by the partition portion 39, and each forms an independent space. Each of the two internal spaces of the compartment bag 380 is filled with foam beads. The foam beads can move in the partition bag 380 in a state where air is not removed from the second sealed space of the backrest portion bag 3B. For this reason, the shape of the backrest bag 3B can be freely deformed according to the movement of the foam beads in the partition bag 380.

  Through holes 321H and 322H (collectively referred to as “through holes 32H”) are provided near the upper end of the region 32. The through holes 321H and 322H are arranged side by side in the left-right direction. The through hole 321H is arranged on the left side with respect to the through hole 322H. A belt 6B (see FIG. 3) inserted through the through hole 32H through the through hole 24 (see FIG. 3) of the cover 2 is inserted into the through hole 32H. Specifically, the belt 6B is inserted into the cover 2 through the through hole 24A of the cover 2, passes through the rear side of the body holding portion 371 of the intake bag 3, and directs the through hole 321H from the rear side to the front side. Inserted. The belt 6B passes through the front side of the region 32 of the intake bag 3 from the through hole 321H to the through hole 322H. The belt 6 </ b> B is inserted through the through hole 322 </ b> H from the front side toward the rear side, passes through the rear side of the body holding portion 372 of the intake bag 3, and is extracted outside the cover 2 through the through hole 24 </ b> B of the cover 2.

<Intake mechanism 5>
The seat intake mechanism 5A is connected to the center of the first leg holding portion 361 in the vertical direction of the seat bag 3A of the intake bag 3. The seat intake mechanism 5A is a hose-like intake valve for extracting air from the first sealed space of the seat bag 3A. The backrest portion intake mechanism 5B is connected to the left end portion of the head holding portion 373 in the backrest portion bag 3B of the intake bag 3. The backrest intake mechanism 5B is a hose-like intake valve for extracting air from the second sealed space of the backrest bag 3B. Hereinafter, the seat portion intake mechanism 5A and the backrest intake mechanism 5B are collectively referred to as the “intake mechanism 5”. The intake mechanism 5 can individually evacuate air from the seat bag 3A and the backrest bag 3B.

  As shown in FIG. 1, the seat portion intake mechanism 5 </ b> A and the backrest portion intake mechanism 5 </ b> B each protrude outward from a hole provided on the left side surface of the cover 2 in a state where the intake bag 3 is accommodated in the cover 2. To do. A backflow prevention valve 50 is provided at the tip of each of the seat intake mechanism 5A and the backrest intake mechanism 5B to prevent the air from flowing back into the intake bag 3 after the air is extracted from the intake bag 3.

<How to use sitting position holder 1>
With reference to FIGS. 1 and 2, the case where the sitting position holder 1 is placed on the chair 9 and used will be described as an example. The sitting position holder 1 is bent at the positions of the first bent portion 20 and the second bent portion 30A (see FIG. 5) so that the angle formed by the seat portion 2A of the cover 2 and the backrest portion 2B is approximately 90 degrees. It is done. The sitting position holder 1 is placed on the chair 9 in a state where a portion corresponding to the seat portion 2A of the rear surface 22 (see FIG. 4) of the cover 2 is in contact with the seat surface 9A of the chair 9 from above. A portion of the rear surface 22 of the cover 2 corresponding to the backrest portion 2B contacts the backrest 9B of the chair 9 from the front side. That is, the rear surface 22 of the cover 2 of the sitting position holder 1 is disposed along the chair 9.

  Both end portions of the belt 6A are guided to the lower side of the seating surface 9A of the chair 9. Fasteners (not shown) provided at both ends of the belt 6A are connected to each other. In this state, the length of the belt 6A is adjusted. As a result, a portion of the sitting position holder 1 corresponding to the seat portion 2 </ b> A of the cover 2 is fixed to the seat surface 9 </ b> A of the chair 9. Both end portions of the belt 6B are guided to the back side of the backrest 9B of the chair 9. As shown in FIG. 2, fasteners 62 provided at both ends of the belt 6B are connected to each other. In this state, the length of the belt 6B is adjusted. Thereby, the part corresponding to the backrest 2 </ b> B of the cover 2 in the sitting position holder 1 is fixed to the backrest 9 </ b> B of the chair 9.

  In the state where the sitting position holder 1 is fixed to the chair 9 as described above, the user sits on the sitting position holder 1. The part corresponding to a pair of 1st leg holding | maintenance part 360 (refer FIG. 5) of the suction bag 3 among the sitting position holders 1 is bent to the front side. Thereby, the sitting position holder 1 is disposed along the side portion of the portion from the user's waist to the base of the leg. A portion corresponding to the second leg holding portion 363 (see FIG. 5) of the intake bag 3 in the sitting position holder 1 is bent forward. Accordingly, the sitting position holder 1 is disposed along the back of the user's knee. The part corresponding to a pair of trunk | drum holding | maintenance part 370 (refer FIG. 5) of the suction bag 3 among the sitting position holders 1 is bent to the front side. Thereby, the sitting position holding tool 1 is arrange | positioned along the side part of a user's torso. The left and right ends of the portion corresponding to the head holding portion 373 (see FIG. 5) of the intake bag 3 in the sitting position holder 1 are bent forward. Thereby, the sitting position holder 1 is disposed along the side portion of the user's head.

  The air in the first sealed space of the seat portion bag 3A of the intake bag 3 is extracted through the seat portion intake mechanism 5A. As a result, the foam beads filled in the seat bag 3A are in close contact with each other and cannot be moved. The sitting position holder 1 is fixed in a state in which portions corresponding to the pair of first leg holding portions 360 (see FIG. 5) and second leg holding portions 363 (see FIG. 5) of the air intake bag 3 are bent forward. . The part corresponding to the pair of first leg holding parts 360 of the intake bag 3 in the sitting position holding tool 1 supports the part from the user's waist to the base of the leg from both the left and right sides. The part corresponding to the 2nd leg holding | maintenance part 363 (refer FIG. 5) of the inhalation bag 3 among the sitting position holding tools 1 supports a user's knee back part from the lower side. Accordingly, the lower body of the seated user is supported by the sitting position holder 1.

  The air in the second sealed space of the backrest portion bag 3B of the intake bag 3 is extracted through the backrest portion intake mechanism 5B. Thereby, the foam beads in the division bag 380 accommodated in the backrest portion bag 3B are in close contact with each other and cannot be moved. The sitting position holder 1 is fixed in a state in which portions corresponding to the pair of body holding portions 370 (see FIG. 5) and the head holding portion 373 (see FIG. 5) of the intake bag 3 are bent forward. The part corresponding to the pair of body holding portions 370 of the intake bag 3 in the sitting position holding tool 1 supports the user's body from the left and right sides. The part corresponding to the head holding part 373 (see FIG. 5) of the intake bag 3 in the sitting position holder 1 supports the side part of the user's head from both the left and right sides. Thus, the upper body of the seated user is supported from both the left and right sides by the sitting position holder 1.

  An annular belt 6C is arranged on the front side of the chest and abdomen of the user. Both ends of the belt 6 </ b> C are passed under both sides of the user and further inserted into the through holes 25 (see FIGS. 3 and 4) of the cover 2 of the sitting position holder 1. Both ends of the belt 6 </ b> C are connected inside the cover 2 of the sitting position holder 1. Thereby, the seated user is supported from the front side.

<Main functions and effects of this embodiment>
As described above, the sitting position holder 1 can fix the foam beads in close contact with each other in the intake bag 3 by extracting air from the intake bag 3 through the intake mechanism 5. For this reason, for example, in a state where the user is seated on the sitting position holder 1, a part of the sitting position holding tool 1 corresponding to the seat portion 2A of the cover 2 is positioned along the side of the user's leg. Can be folded. Moreover, a part of part corresponding to the backrest part 2B of the cover 2 among the sitting position holding | maintenance tools 1 is bend | folded to the front side so that a user's head and the side part of a torso may be met. Thereafter, air is extracted from the intake bag 3. In this case, the sitting position holder 1 is fixed in a state along each side of the user's head, torso, and legs. That is, the user is supported by the sitting position holder 1 from the left and right sides. For this reason, the sitting posture of the user is appropriately maintained by the sitting position holder 1. Therefore, the sitting position holder 1 can appropriately suppress the user's sitting posture from shifting. In addition, since the intake mechanism 5 includes the backflow prevention valve 50, the intake mechanism 5 can be held for a long time in a state where air is removed from the intake bag 3.

  In the sitting position holder 1, the intake bag 3 is divided by the joint portion 30 to form a seat portion bag 3A and a backrest portion bag 3B. The seat portion bag 3 </ b> A is disposed inside the seat portion 2 </ b> A of the cover 2. The backrest bag 3 </ b> B is disposed inside the backrest 2 </ b> B of the cover 2. The seat bag 3A and the backrest bag 3B form an independent sealed space. In this case, the sitting position holder 1 can prevent the foam beads from moving between the seat portion bag 3A and the backrest portion bag 3B. Accordingly, the sitting position holder 1 can prevent the foam beads from moving from the backrest portion bag 3B side to the seat portion bag 3A side due to gravity, for example, and being unevenly distributed. For this reason, since the sitting position holder 1 can uniformly support the entire body of the user, it is possible to more appropriately suppress the deviation of the sitting posture of the user.

  The backrest portion bag 3 </ b> B of the intake bag 3 has a pair of body holding portions 370 and a head holding portion 373. The body holding portions 371 and 372 are separated in the left-right direction. The head holding portion 373 extends in the left-right direction across the upper end portions of the body holding portions 371 and 372. In this case, the sitting position holder 1 can appropriately support the user's torso from both the left and right sides by the portions corresponding to the torso holding parts 371 and 372. Further, the sitting position holder 1 can appropriately support the user's head from both the left and right sides by a portion corresponding to the head holding portion 373. Therefore, the sitting position holder 1 can suppress the user's seating posture from deviating by appropriately supporting the upper body of the user.

  The seat bag 3A of the intake bag 3 has a pair of first leg holding part 360 and second leg holding part 363. The first leg holding portions 361 and 362 are separated in the left-right direction across the region 31. The second leg holding portion 363 extends in the left-right direction across the lower ends of the first leg holding portions 361 and 362. In this case, the sitting position holder 1 can appropriately support the portion from the user's waist to the base of the leg from both the left and right sides by the portions corresponding to the first leg holding portions 361 and 362. Further, the sitting position holder 1 can appropriately support the knee back portion of the user's leg by the portion corresponding to the second leg holding portion 363. Therefore, the sitting position holder 1 can suppress the user's sitting posture from being shifted by appropriately supporting the lower body of the user.

  The cover 2 has a foldable first bent portion 20 at a boundary portion between the seat portion 2A and the backrest portion 2B. The intake bag 3 has a second bent portion 30 </ b> A at a position corresponding to the first bent portion 20. In this case, the user uses the seat holder 1 by folding it at the first bent portion 20 and the second bent portion 30A to place the seat portion 2A along the seat surface 9A of the chair 9, and The bent portion 2B can be arranged along the backrest 9B of the chair 9. Moreover, since the sitting position holder 1 can be reduced in size by being folded by the first bent portion 20 and the second bent portion 30A, it can be easily carried by the user.

  The sitting position holder 1 has a backrest cushioning material 27 at a position corresponding to the region 32 between the pair of body holding portions 370 on the front surface 21 of the cover 2. In this case, when the user sits on the sitting position holder 1, the backrest cushioning material 27 can be brought into contact with the back of the user. For this reason, the sitting position holder 1 can soften the impact when the user is seated by the backrest cushioning material 27, and can prevent bed slipping by the backrest cushioning material 27. In particular, since the region 32 of the intake bag 3 in the sitting position holder 1 is not filled with foam beads, it is preferable to provide the backrest cushioning material 27 in this portion because the feeling of bottoming can be suppressed.

  The sitting position holder 1 has a seat cushioning material 26 at a position corresponding to the region 31 between the pair of first leg holding portions 360 on the front surface 21 of the cover 2. In this case, when the user sits on the sitting position holder 1, the seat cushioning material 26 can be brought into contact with the user's buttocks. For this reason, the sitting position holder 1 can soften the impact when the user is seated by the seat cushioning material 26, or can prevent floor slippage by the seat cushioning material 26. In particular, since the region 31 of the air intake bag 3 in the sitting position holder 1 is not filled with foam beads, it is preferable to provide the seat cushioning material 26 in this portion because the feeling of bottoming can be suppressed.

  The partition bag 380 is accommodated in the second sealed space of the backrest bag 3B of the intake bag 3. The compartment bag 380 has air permeability and accommodates foam beads. The partition bag 380 is adhered to the inner wall of the backrest bag 3B. For this reason, the movement of the division bag 380 in the backrest part bag 3B is suppressed. In this case, the sitting position holder 1 can prevent the foam beads from being unevenly distributed in the backrest portion bag 3 </ b> B of the intake bag 3. Accordingly, the sitting position holder 1 can be fixed over the entire area of the backrest portion bag 3B when the air is extracted from the backrest portion bag 3B of the intake bag 3, so that the user can be made uniform throughout the sitting position holding device 1. Can be supported. For this reason, the sitting position holder 1 can further appropriately prevent the user's sitting posture from shifting.

  The partition bag 380 is provided with a partition portion 39 that partitions the internal space and divides it into two in the vertical direction. In this case, the sitting position holder 1 can appropriately prevent the foam beads from moving downward due to gravity in the partition bag 380 and being unevenly distributed.

  A seat portion intake mechanism 5A for extracting air from the first sealed space is connected to the seat portion bag 3A of the intake bag 3. A backrest portion intake mechanism 5 </ b> B for extracting air from the second sealed space is connected to the backrest portion bag 3 </ b> B of the intake bag 3. In this case, the sitting position holder 1 can separately evacuate air from each of the seat portion bag 3A and the backrest portion bag 3B of the intake bag 3. Therefore, the sitting position holder 1 can be in a state where only the lower half of the user is supported by the portion corresponding to the seat bag 3A. Similarly, the sitting position holder 1 can be in a state where only the upper body of the user is supported by the portion corresponding to the backrest bag 3B. Furthermore, the sitting position holder 1 can separately perform an operation of extracting air from the seat portion bag 3A and an operation of extracting air from the backrest portion bag 3B. Therefore, the user can efficiently execute each work of drawing air from the sitting position holder 1.

  The cover 2 includes through holes 23 and 24, and the air intake bag 3 includes through holes 31H and 32H. The belt 6A is inserted into the through holes 23 and 31H and fixed to the seat surface 9A of the chair 9. The belt 6B is inserted into the through holes 24 and 32H and fixed to the backrest 9B of the chair. In this case, since the sitting position holder 1 can fix the cover 2 and the intake bag 3 to the chair 9, the sitting position holder 1 can be prevented from being displaced from the chair 9. In addition, the sitting position holder 1 can prevent the relative positions of the cover 2 and the intake bag 3 from being shifted by the belts 6A and 6B.

  The cover 2 of the sitting position holding tool 1 is provided with a pocket 211 that can store a cooling agent. In this case, the sitting position holder 1 can cool the local part of the user with the cold insulation agent while maintaining the sitting posture of the user.

<Modification>
The present invention is not limited to the above embodiment, and various modifications can be made. The air intake bag 3 may not be divided by the joint portion 30. The air intake bag 3 may be configured such that the foam beads can be moved between the seat portion bag 3A and the backrest portion bag 3B. The seat bag 3A of the intake bag 3 may be divided so that portions corresponding to the pair of first leg holding part 360 and second leg holding part 363 each form a sealed space. The backrest portion bag 3B of the intake bag 3 may be divided so that portions corresponding to the pair of body holding portions 370 and the head holding portion 373 each form a sealed space.

  The pair of body holding portions 370 of the backrest bag 3B of the intake bag 3 may be provided over the entire region in the left-right direction without being divided in the left-right direction by the region 32. The pair of first leg holders 360 of the seat bag 3A of the intake bag 3 may be provided across the entire region in the left-right direction without being divided in the left-right direction by the region 31.

  The sitting position holder 1 may be held at a portion corresponding to the first bent portion 20 of the cover 2 in a state where the angle formed between the seat portion 2A and the backrest portion 2B is approximately 90 degrees. That is, the sitting position holder 1 may be in a state of being bent in advance at a position corresponding to the first bent portion 20 of the cover 2.

  The seat cushioning material 26 may be provided in a portion other than the portion corresponding to the region 31 of the intake bag 3 in the front surface 21 of the cover 2. For example, the seat cushioning material 26 may be provided over the entire area corresponding to the seat 2 </ b> A in the front surface 21 of the cover 2. The backrest cushioning material 27 may be provided in a portion other than the portion corresponding to the region 32 of the intake bag 3 in the front surface 21 of the cover 2. For example, the backrest cushioning material 27 may be provided over the entire area corresponding to the backrest 2 </ b> B of the front surface 21 of the cover 2. That is, the cushioning material may be provided over the entire front surface 21 of the cover 2.

  Needless to say, the number of compartment bags 380 filled with foam beads is not limited to the above embodiment. A compartment bag may be accommodated in the seat bag 3A of the intake bag 3. Moreover, the shape of the partition part 39 of the division bag 380 is not limited to a linear shape extending in the left-right direction, and may be another shape such as a curved shape or a zigzag shape. The partition part 39 may divide the internal space of the partition bag 380 in the left-right direction. The partition portion 39 may not be provided in the partition bag 380.

  The belt 6 may be directly connected to the cover 2 or may be directly connected to the intake bag 3. The sitting position holder 1 may have a member for fixing to the chair 9 separately from the belt 6. In this case, the sitting position holder 1 may not have the belt 6. The position of the pocket 211 provided in the cover 2 is not limited to the substantially central portion of the backrest portion 2B in the front surface 21 of the cover 2, and may be provided in another position. The cover 211 may not be provided with the pocket 211.

1: Sitting position holder 2: Cover 2A: Seat part 2B: Backrest part 3: Air intake bag 3A: Seat part bag 3B: Backrest part bag 5: Air intake mechanism 5A: Seat part intake mechanism 5B: Back part intake mechanism 6A 6B: Belt 20: First bent part 26: Seat cushioning material 27: Backrest cushioning material 30A: Second folded part 39: Partition part 211: Pocket 360, 361, 362: First leg holding part 363: First Biped holding part 370, 371, 372: Body holding part 373: Head holding part 380, 381, 382, 383, 384: Dividing bag

Claims (10)

A bag-shaped cover having a seat portion and a backrest portion;
A non-breathable bag-like air intake bag,
A seat bag disposed inside the seat portion of the cover and forming a first sealed space; and
An air intake bag having a backrest part bag disposed inside the backrest part of the cover and forming a second sealed space different from the first sealed space;
A folding part that is provided at each of a boundary part between the seat part and the backrest part of the cover and a boundary part between the seat bag and the backrest bag of the intake bag, and is foldable;
An air intake mechanism that communicates with the interior of the air intake bag and extracts air from the air intake bag;
A sitting position holder comprising foam beads accommodated in the inside of the intake bag. The backrest bag is
A pair of fuselage holding portions that are two portions extending along the arrangement direction of the seat portion and the backrest portion of the cover, and are spaced apart in a direction orthogonal to the arrangement direction, and the pair of fuselage The sitting position holder according to claim 1, further comprising a head holding portion provided between each of the holding portions and an end portion opposite to the seat portion side in the arrangement direction. The seat bag is
A pair of first leg holding portions, which are two portions extending along the arrangement direction of the seat portion and the backrest portion of the cover, and are spaced apart in a direction perpendicular to the arrangement direction; 2. A second leg holding portion provided between each of the first leg holding portions of the first leg holding portion and an end portion opposite to the backrest side in the arrangement direction. Or the sitting position holder of 2.   The sitting position holder according to claim 2, further comprising a backrest cushioning material provided at a position corresponding to a portion between the pair of body holding portions of the cover.   The sitting position holding tool according to claim 3, further comprising a seat cushioning material provided at a position corresponding to a portion between the pair of first leg holding portions of the cover. Containing the foam beads, further comprising a plurality of bag-shaped compartment bags having air permeability,
The sitting position holder according to any one of claims 1 to 5, wherein the intake bag accommodates the plurality of partition bags.   Each said division | segmentation bag was equipped with the partition part which partitions off internal space and is divided into two, The sitting position holding tool of Claim 6 characterized by the above-mentioned. The intake mechanism is
A seat intake mechanism for extracting air from the seat bag;
The sitting position holder according to any one of claims 1 to 7, further comprising a backrest intake mechanism for extracting air from the backrest bag.   The sitting position holder according to any one of claims 1 to 8, further comprising a belt that is inserted into a through hole provided in each of the cover and the intake bag.   The sitting position holder according to any one of claims 1 to 9, wherein the cover has a pocket capable of accommodating a cooling agent.

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