JP2009106723A - Bedsore preventing cushion for chair - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bedsore preventing cushion for a chair, capable of eliminating unstableness in transferring, while preventing bedsore caused by sitting for a long period of time. <P>SOLUTION: The bedsore preventing cushion 1 for the chair to be used by placement on the seat surface of the chair C includes a cushion body 10 including: a first area 11 having body pressure distribution property; and a second area 12 which surrounds the first area 11 and is harder than the first area 11. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a chair slip prevention cushion for a chair.

  2. Description of the Related Art Conventionally, those who are forced to live in a wheelchair often have a so-called floor slip in the buttocks because of a long sitting posture, and various cushions have been proposed to prevent this.

For example, as a cushion for supporting a buttock, a cushion that includes a plurality of air cells and can expand and contract the air cells by air supply and exhaust to prevent bed slippage due to prolonged sitting (for example, patents) is known. See references 1 and 2).
JP 2005-261817 A JP 2007-167558 A

  However, since these conventional cushions have a plurality of air cells arranged in the entire cushion, for example, when these are placed on the seat surface of a wheelchair, when transferring to the wheelchair from a bed or the like, the side end portion of the cushion However, it was difficult to transfer because the state became unstable.

  In particular, wheelchair users often use a transfer board when transferring, and if there is an air cell up to the side edge of the cushion, the end of the transferred transfer board will sink into the air cell and the transfer board will not be stable In addition, the air cell could be damaged by the end of the transfer board.

  Therefore, an object of the present invention is to provide a chair slip prevention cushion for a chair that can eliminate instability during transfer while preventing floor slip.

  (1) In order to solve the above-described problem, the present invention provides a chair floor slip prevention cushion that is used by being placed on a seat surface of a chair, and includes a first region having body pressure dispersibility and the first region. In addition, a cushion misalignment prevention cushion for a chair, comprising a cushion body having a second region that is harder than the first region.

  (2) Further, the present invention is the invention described in (1) above, wherein the first region is formed by arranging a plurality of air cells that can be freely supplied and exhausted, while the second region is a foam material. It is formed by.

  (3) Further, in the present invention described in the above (2), the second region is a frame formed by the foam material, and is formed at an end portion of the air cell by the frame. The first region is surrounded with the heel portion sandwiched therebetween.

  (4) Moreover, the present invention is characterized in that, in the invention according to any one of (1) to (3), a region having a difference in pressing force is defined in the first region. And

  (5) Moreover, this invention is the invention in any one of said (1)-(4), In the said 1st area | region, the area | region which gave the degree of stimulation force with respect to the thigh of a seated person Is formed.

  (6) Further, in the invention according to any one of (1) to (5), the present invention is characterized in that a recess is formed at a position corresponding to the thigh of the seated person in the second region. And

  (7) Moreover, this invention arrange | positions a base cushion on the lower side of the cushion main body in any one of said (1)-(6), and arrange | positions a cover cushion on the upper side, The said cover cushion, It is characterized by being made of a material having a lower repulsion than the base cushion.

  (8) In the invention described in (3) above, the present invention includes a control unit that controls an air supply / exhaust operation of the air cell, and a cushion cover that covers the cushion body, and the cushion cover includes at least It has the accommodating part which accommodates the said control unit in the part which covers the surrounding side surface of the said frame.

  (9) Moreover, the present invention is characterized in that, in the invention described in (8) above, the storage portion is arranged on a peripheral side surface on the front side of the seated person.

  According to the present invention, the cushion body has the second region surrounding the first region having body pressure dispersibility, and the second region is harder than the first region. The instability at the time of transfer can be eliminated while preventing the floor slip of the person.

[About the first embodiment]
First, a first embodiment of a chair slip prevention cushion for a chair according to the present invention will be described.

  The chair floor slip prevention cushion according to the present embodiment is used by being placed on the seat surface of the chair, and surrounds the first region having body pressure dispersibility and the first region, and A cushion body having a second region that is harder than the first region.

  The first region is formed of a relatively soft material such as a synthetic resin, and has a so-called body pressure dispersibility, that is, the ability to disperse a heavy load locally on the seated person's buttocks and thighs. With this first region, the chair slip prevention cushion for the chair according to the present embodiment can prevent the seat slip of the seated person who has been seated for a long period of time.

  And the floor slip prevention cushion for chairs concerning this embodiment has the 2nd field formed with the material harder than the 1st field, and this 2nd field surrounds the 1st field. It is arranged to do. By adopting such a configuration, for example, when the cushion is placed on the seat surface of the wheelchair, when the seated person uses the transfer board to transfer from the bed or the like to the wheelchair, for example, the end of the transfer board is Since it can be stably installed in the second region, it is possible to eliminate the difficulty of transfer, which was a problem with conventional cushions.

  In addition, the chair floor slip prevention cushion according to the present embodiment is formed by arranging a plurality of air cells in which the first area having body pressure dispersibility is freely supplied and exhausted, while the second area is made of a foam material. Forming.

  That is, in the first region, the plurality of arranged air cells are expanded and contracted by air supply / exhaust, respectively. Therefore, the load applied by concentrating on a specific part of the body of the seated person is more dispersed, and the floor slip of the seated person is effectively prevented. Can be prevented. In addition, by forming the second region with a foam material, it is possible to eliminate the difficulty of transfer while maintaining good comfort as a cushion.

  Moreover, the 2nd area | region in the floor slip prevention cushion for chairs concerning this embodiment is made into the frame formed of the foam material. In this state, the first region is surrounded in a state in which the flange formed at the end of the air cell is sandwiched by the frame. As the foam material, urethane foam or the like is a suitable material.

  That is, the cushion main body is formed without narrowing the first region for receiving the user's buttocks and thighs by sandwiching the buttocks of the first region by the second region formed in a frame shape. For example, when it is placed on a wheelchair or the like where the seating surface is limited, the effective area of the first region having body pressure dispersibility can be taken as wide as possible. it can. Furthermore, with the above-described configuration, the first area and the second area can be integrated, and the comfort and usability of the cushion body can be improved.

  Further, the chair floor slip prevention cushion according to this embodiment forms a region in the first region with a difference in the pressing force.

  In other words, many conventional cushions are simply designed to disperse body pressure, and those who mainly live on wheelchairs still have further improvements. Therefore, in the present embodiment, for example, a part of the first region, such as the buttocks and thighs, where the weight is concentrated and located at such a part is defined as a specific region, and the part of the specific region to the body is formed. By making the degree of pressing force (reaction force from the cushion) smaller than the pressing force in other areas, for example, the pressing force concentrated on a specific location such as the sciatic area of the seated person is reduced, The body pressure dispersibility in the first region can be further improved.

  Further, the chair floor slip prevention cushion according to the present embodiment forms a region in which the degree of stimulation force on the thigh of the seated person is given a difference in the first region.

  That is, for example, by providing a small protrusion at a position corresponding to the thigh of the seated person in the first region, the thigh can be stimulated to obtain a massage effect. In addition, when the first region is formed of a plurality of air cells that can be freely supplied and exhausted, by making the supply / exhaust timing of the air cell at the position corresponding to the thigh faster than the supply / exhaust timing of other air cells The thigh can be stimulated to promote the blood flow promoting effect.

  In addition, the chair floor slip prevention cushion according to the present embodiment has a recess formed at a position corresponding to the thigh of the seated person in the second region, whereby the body pressure dispersion performance of the first region is achieved. Can be exhibited more effectively.

  In addition, the chair floor slip prevention cushion according to the present embodiment has a base cushion on the lower side of the cushion body and a cover cushion on the upper side, and the cover cushion is made of a material having a low resilience than the base cushion. Yes.

  By adopting such a configuration, for example, even when the cushion is applied to a chair such as a foldable wheelchair where the seat surface largely sinks due to the weight of the seated person, the base cushion can The shape can be maintained moderately, and further, the comfort of sitting can be maintained by forming the cover cushion with a low repulsion material than the base cushion.

  Hereinafter, the floor slip prevention cushion for a chair according to the present embodiment will be described more specifically with reference to the drawings. FIG. 1 is an explanatory view showing a use state of a chair slip cushion according to the present embodiment, and FIG. 2 is an exploded perspective view of the cushion. In addition, here, as an example, the case where the chair floor slip prevention cushion is placed on the seat surface of the wheelchair will be described, but the present invention is not limited to this, and various types such as an office chair and a folding chair can be used. Applicable for chairs.

  As shown in FIG. 1, the chair floor slip prevention cushion (hereinafter simply referred to as “cushion 1”) according to the present embodiment is used by being placed on the seating surface of the wheelchair C, and prevents dirt. Therefore, it is covered with the cushion cover 2. The cushion cover 2 may be made of a washable moisture permeable material.

  The cushion 1 includes a cushion main body 10 having a cell unit 11 as a first area and a side cushion 12 as a second area, and further, a base cushion 20 is provided below the cushion main body 10 and an upper side thereof. The cover cushion 30 is formed by superposition. That is, the cushion 1 is in a state in which the cell unit 11 is built with the cover cushion 30, the side cushion 12, and the base cushion 20 as exteriors.

  As shown in FIG. 2, the base cushion 20 is a member that becomes a base of the cushion 1, and is formed by using a high-density material among foamed materials such as urethane foam. In addition, the base cushion 20 is formed with step portions 89 and 90 along the shape of the lower surface of the cell unit 11 so that the substantially lower half of the cell unit 11 can be stored.

  Further, notches 81, 82, 83 are formed at the seated person's buttocks, particularly at the center of the ischia and at the left and right thighs, at the bottom of the step portions 89, 90, respectively. Yes. Thus, by providing the notches 81, 82, and 83 at positions corresponding to portions where the body weight is intensively applied to the seated person such as the buttocks and thighs, the pressing force applied to the buttocks and thighs is reduced. be able to. Moreover, these notches 81, 82, 83 have a simple configuration in which the base cushion 20 is simply notched in a rectangular shape, and can be manufactured at a low cost.

  Note that the notches 81, 82, 83 are not necessarily formed by notching the base cushion 20, and may be, for example, recesses having a predetermined depth. By setting it as this structure, the intensity | strength of the base cushion 20 increases and stability of the cushion 1 whole can be improved. Here, as the predetermined depth, it is desirable that the depth is such that the lower surface of the cell unit 11 does not come into contact with the recess when the seated person is seated.

  The base cushion 20 is provided with a notch 84 on the left side of the rear portion of the base cushion 20 as a space for storing various members (such as an air supply / exhaust device) for supplying and exhausting the cell unit 11 described later. .

  The cover cushion 30 is a plate-like member, and is formed of a foam material having a lower density and a lower resilience than the foam material used for the base cushion 20. The cover cushion 30 is easily adapted to the body of the seated person, and distributes the body pressure of the cell unit 11. I try not to disturb sex as much as possible.

  In addition, as described above, the cushion 1 is formed of a low-repulsive material than the base cushion 20 because the cover cushion 30 is formed of a material having a low resilience. Even when the cushion 1 is applied to such a chair, the shape of the cushion 1 as a whole can be appropriately maintained by the base cushion 20, and the sitting comfort can be maintained by the cover cushion 30.

  The cushion body 10 includes a cell unit 11 having body pressure dispersibility and a side cushion 12 that is harder than the cell unit 11.

  The cell unit 11 is a member made of synthetic resin, and is formed by arranging a plurality of rectangular box-shaped air cells 100. The air cell 100 is configured such that air can be supplied and discharged therein. In the present embodiment, the plurality of air cells 100 are divided into two systems in which air is supplied and discharged at alternate timings. The air cells 101 belonging to the first system and the air cells 102 belonging to the second system are arranged adjacent to each other. Thus, the cell unit 11 can obtain a body pressure dispersion effect by expanding and contracting the air cell 101 and the air cell 102 at alternate timings by supplying and discharging air. This will be described later.

  Further, the cell unit 11 is formed with a flange 120 at an end portion of a region where a plurality of air cells 100 are arranged. Further, air is supplied to and discharged from each air cell 100 on the flange 120. The supply / discharge pipes 130 and 140 are formed.

  The side cushion 12 is a frame formed of a foam material such as urethane foam that is harder than the cell unit 11, and is configured to surround the cell unit 11.

  A stepped portion 76 is provided at the bottom of the side cushion 12.

  Further, concave portions 71 and 72 are respectively formed at positions corresponding to both thighs of the seated person in the side cushion 12, thereby reducing a load intensively applied to the part and reducing a floor slip. It is possible to prevent. Further, on the left side of the rear portion of the side cushion 12, a notch 73 is provided as a space for storing various members for supplying and exhausting the cell unit 11 described later.

  The cushion 1 is formed by laminating the members thus formed in this order from the base cushion 20, the cell unit 11, the side cushion 12, and the cover cushion 30.

  And when each member is laminated | stacked, the cushion 1 is the cell unit 11 by the area | region which consists of the upper end part 88 and the step part 89 in the base cushion 20, and the area | region which consists of the lower end part 75 and the step part 76 of the side cushion 12. It is set as the structure by which the collar part 120 is clamped.

  Next, the mechanism of air supply / exhaust of the air cell 100 in the cell unit 11 will be specifically described with reference to FIGS. 3 is a schematic explanatory diagram of the cell unit 11, FIG. 4 is a control block diagram of the air cell 100 in the cushion 1, and FIG. 5 is an explanatory diagram of the air cell supply / exhaust timing.

  As shown in FIG. 3, the cell unit 11 divides the plurality of air cells 100 into a first air cell 101 and a second air cell 102 in which air supply and discharge are performed at alternate timings. And the second air cell 102 are disposed adjacent to each other. In the figure, reference numeral 130 denotes a first supply / exhaust pipe for supplying / exhausting air to / from the first air cell 101, and 140 denotes a second supply / exhaust pipe for supplying / exhausting air to / from the second air cell 102. The pipes 130 and 140 are connected in communication with the air supply / exhaust device 5. The first and second supply / discharge pipes 130 and 140 communicate with the air cells 101 and 102 via communication pipes 131 and 141, respectively. In the figure, reference numerals 137 and 147 denote exhaust valves, which are used when the air cell 100 is exhausted manually. As described above, the cell unit 11 concentrates the connecting portions of the supply / exhaust pipes 130 and 140 with the air supply / exhaust device 5 and the exhaust valves 137 and 147 all at one place on the left rear side of the cell unit 11. By adopting the configuration, the appearance of the cushion 1 as a whole can be maintained and the usability can be improved.

  The air supply / exhaust device 5 is a device that supplies / discharges air to / from each air cell 100 using a built-in pump. The air supply / exhaust device 5 is controlled so as to switch the air supply passage every predetermined time set in advance. When the air supply passage communicating with the pump is closed, the air supply / exhaust device 5 is opened to the atmosphere. It is comprised so that.

  With the above configuration, when the air supply / exhaust device 5 is driven, the first air cell 101 and the second air cell 102 are alternately filled with air. As described above, the air cells 101 and 102 are deflated by the weight of the seated person when not filled with air, and are expanded when the air is filled. It will be possible to prevent bed slip.

  In addition, the first air cell 101 and the second air cell 102 are arranged so as to be adjacent to each other, and the replacement of the portion holding the body of the seated person is also performed in the vicinity, so that the body pressure is applied to the seated person. It is possible to maintain good comfort without being aware of changes in

  Here, the structure of the air supply / exhaust device 5 is demonstrated using FIG.4 and FIG.5.

  In FIG. 4, P is a pump for supplying air to each air cell 100. The pump P includes a first supply electromagnetic valve 61, a second supply electromagnetic valve 62, a first supply / exhaust pipe 130, The first air cell 101 and the second air cell 102 are connected in communication with each other via the two supply / discharge pipes 140.

  A first pressure sensor S1 is provided in the middle of the first supply / discharge pipe 130, and a second pressure sensor S2 is provided in the middle of the second supply / discharge pipe 140. Further, a first exhaust solenoid valve 63 is provided between the first supply solenoid valve 61 and the first pressure sensor S1, and a second exhaust solenoid valve 62 is provided between the second supply solenoid valve 62 and the second pressure sensor S2. 2 Exhaust solenoid valve 64 is provided.

  These electromagnetic valves 61 to 64, pressure sensors S1 and S2, and pump P are controlled by the control unit 7.

  That is, based on the sensing signals from the pressure sensors S1 and S2, the first air cell 101 and the first air cell 101 and the second pump P are driven and stopped and the opening and closing operations of the solenoid valves 61 to 64 are performed with timing. Air is alternately supplied to and discharged from the two air cells 102.

  In the figure, V is a household power supply (AC 100 V), which feeds power to the pump P and is connected to the control unit 7 via the transformer T.

  Here, the control unit 7 includes a stimulation mode and a body pressure dispersion mode, and the stimulation mode and the body pressure dispersion mode are alternately performed as shown in FIG.

  That is, as indicated by the solid line, the control unit 7 first supplies air to the first air cell 101, maintains the inflated state for a predetermined time (about 5 seconds), and then exhausts air for a predetermined time.

  Furthermore, the control unit 7 starts supplying air to the second air cell 102 at the same time as exhausting the first air cell 101, and maintains the expanded state of the second air cell 102 for a predetermined time (about 5 seconds). Exhaust for a predetermined time. This series of operations is set as a stimulation mode.

  In addition, not all of the air cells 101 and 102 are exhausted, but the air cells 101 and 102 are maintained for a predetermined second (about 20 seconds) with some air remaining in each of the air cells 101 and 102. The This state is referred to as a body pressure dispersion mode. In order to maintain a part of the air, it may be defined by the exhaust time, but it may be controlled by the pressure sensors S1 and S2 so as to maintain a predetermined pressure.

  The air supply / exhaust device 5 alternately performs the stimulation mode and the body pressure dispersion mode as described above. The cushion 1 can exhibit a further bed slip prevention effect by regularly executing different modes in this manner.

  In addition to the stimulation mode and the body pressure dispersion mode, the control unit 7 is provided with a high-pressure stationary mode in which all the air cells 100 provided in the cell unit 11 are expanded by supplying air and the expanded state is maintained. . This high-pressure stationary mode is used when a seated person transfers, and since all the air cells 100 are inflated to maintain a high-pressure state, more stable transfer is possible.

  Furthermore, since the expanded state of not only the air cell 100 but also the supply / discharge pipes 130 and 140 is maintained during the high-pressure stationary mode, the transfer using a transfer board or the like can be performed more stably. This will be described later.

  In addition, the cell unit 11 is partitioned and formed with a difference in the pressing force. Hereinafter, such a configuration will be described in more detail with reference to FIGS. 6 is a schematic explanatory view of the cell unit 11, FIG. 7 is a sectional view taken along line AA in FIG. 6, FIG. 8 is a sectional view taken along line BB in FIG. 6, and FIG. It is explanatory drawing which shows the modification of 100. FIG.

  As shown in FIG. 6, the cell unit 11 has regions 150, 151, and 152 (indicated by gray in the drawing) due to the air cell 100 that has a smaller pressing force on the body part of the seated person than the other air cells 100. (Region) is defined. These regions are provided at positions corresponding to the occupant's buttocks, right thigh, and left thigh, respectively, and the load applied to these portions can be dispersed intensively.

  In the present embodiment, the height of the air cell 100 in the region is formed to be lower than the height of the other air cells 100 so that the degree of pressing force is made different.

  That is, as shown in FIG. 7, the air cell 100 belonging to the region 150 corresponding to the seated person's buttocks (hereinafter referred to as “buttock support region 150”) is formed slightly lower than the other air cells 100. Yes. Further, as shown in FIG. 8, a region 151 corresponding to the right thigh of the seated person (hereinafter referred to as “right thigh support region 151”) and a region 152 corresponding to the left thigh of the seated person. The air cell 100 belonging to (hereinafter referred to as “left thigh support region 152”) is also formed to be slightly lower than the other air cells 100, similarly to the air cell 100 belonging to the buttocks support region 150. By adopting such a configuration, the pressing force by the air cell 100 belonging to the buttocks support region 150, the right thigh support region 151, and the left thigh support region 152 can be made smaller than the pressing force by the other air cells 100, Therefore, the pressing force to the buttocks and thighs where the weight of the seated person is concentrated can be reduced, the body pressure dispersibility in the cell unit 11 can be further improved, and bed slip can be prevented. In the air cell 100 belonging to the buttocks support region 150, the upper cell 51 and the lower cell 52 are formed at different heights, but the lower cell 52 is formed at the same height as the upper cell 51. Also good.

  Furthermore, the base cushion 20 is provided with notches 81, 82, and 83 at positions corresponding to the buttocks and thighs of the seated person. That is, the air cell 100 belonging to the buttocks support region 150, the right thigh support region 151, and the left thigh support region 152 does not receive a repulsive force from the base cushion 20, and further, the cushion 1 according to the weight of the seated person. When the arm is bent, it sinks into the space formed by the notches 81, 82, and 83, so that the pressing force to the seated person's buttocks and thighs can be further reduced.

  Moreover, since the air cells 100 other than the air cell 100 in each region 150, 151, 152 (that is, the air cell 100 around each region 150, 151, 152) is supported by the step 90 of the base cushion 20, When the weight of the seated person is applied, the weight can be reliably received by the repulsive force from the base cushion 20. It is also possible to prevent the entire cell unit 11 from being bent excessively.

  By the way, as shown in FIG. 7, the cushion 1 includes the cell unit 11 by a region including the upper end portion 88 and the step portion 89 of the base cushion 20 and a region including the lower end portion 75 and the step portion 76 of the side cushion 12. It is set as the structure which clamps the collar part 120 of this. Here, the space formed by the step portion 89 of the base cushion 20 and the step portion 76 of the side cushion 12 is a storage space for the supply / discharge pipes 130 and 140 provided in the flange portion 120 of the cell unit 11.

  In this way, by adopting a configuration in which the flange portion 120 of the cell unit 11 is sandwiched between the side cushion 12 and the base cushion 20, the cushion body 10 can be made compact without narrowing the area formed by the air cell 100 in the cell unit 11. For example, when placed on a wheelchair or the like having a limited seating area, the effective area of the first region having body pressure dispersibility can be made as wide as possible. Furthermore, the unity between the cell unit 11 and the side cushion 12 is enhanced by the above-described configuration, and the comfort and usability of the cushion body 10 can be improved.

  Here, when the pipes 130 and 140 are filled with air and inflated in the high-pressure stationary mode described above, the supply and discharge pipes 130 and 140 are expanded into the stepped portion 76 of the side cushion 12 and the stepped portion 89 of the base cushion 20. It is comprised so that it may contact | abut. With this configuration, even when a load is applied from above, the stepped portion 76 of the cover cushion 30 and the side cushion 12 is supported by the supply / discharge pipes 130 and 140. When transferring using the transfer board or the like, the end of the cushion 1 is not easily deformed by the load of the transfer board or the like, and the seated person can perform transfer stably.

  In the present embodiment, as described above, the flange portion 120 of the cell unit 11 is sandwiched between the side cushion 12 and the base cushion 20, but only the side cushion 12 is used as shown in FIG. It is good also as pinching.

  That is, as shown in FIG. 9, the side cushion 12 ′ is formed in a substantially U-shaped frame body in cross-section, and the flange portion 120 of the cell unit 11 is inserted into the U-shape, thereby It is assumed that 120 is sandwiched between the side cushions 12 '. Further, the base cushion 20 ′ has a shape in which notches 81, 82, 83 corresponding to the seated person's buttocks and both thighs are provided on a plate-like member made of the same material as the base cushion 20. With this configuration, the shapes of the side cushion 12 'and the base cushion 20' can be simplified, and the cushion 1 can be manufactured at a lower cost.

  In the present embodiment, the weight of the seated person on the air cell 100 belonging to the buttock support region 150 can be more naturally transmitted to another air cell 100 by disposing the cover cushion 30 on the upper part of the cell unit 11. .

  In the present embodiment, the degree of pressure applied to the buttocks and thighs is made different by changing the height of the air cell 100. Instead, for example, each of the regions 150, 151, and 152 is used. The pressure of the air cell 100 is made softer than that of the other air cells 100, or the thickness of the air cells 100 belonging to the regions 150, 151, and 152 is made thinner than the thickness of the other air cells 100. The air cells 100 belonging to the regions 150, 151, 152 may be supplied and exhausted separately from the other air cells 100 by changing the arrangement of the communication pipes 131, 141, etc. In addition, the amount of air supplied to the air cells 100 belonging to the regions 150, 151, and 152 is set to be higher than the amount of air supplied to the other air cells 100. By controlling with supply and exhaust device 5 to eliminate, it is also possible to put a degree difference in the pressing force.

  Further, in the right thigh support region 151 and the left thigh support region 152, it is also possible to form a region with a degree of difference in stimulation force on the thigh of the seated person.

  That is, the air cell 100 belonging to the right thigh support region 151 and the left thigh support region 152 is supplied and exhausted by a system different from that of the other air cells 100, and the right thigh support region 151 and the left thigh The air supply / exhaust device 5 is controlled such that the air cells 100 belonging to the support region 152 are supplied and exhausted at a timing faster than the air supply and exhaust of other air cells 100. With such a configuration, the air cell 100 belonging to the right thigh support region 151 and the left thigh support region 152 can intensively stimulate the thigh and obtain a massage effect that promotes blood flow.

  Further, as shown in FIG. 10, a protrusion 55 may be provided on the upper side of the cell 51 above the air cell 100 belonging to the right thigh support region 151 and the left thigh support region 152. By setting it as this structure, the said processus | protrusion 55 can irritate | stimulate a thigh and can accelerate | stimulate the blood flow promotion by a vase pushing effect.

  In the present embodiment, the base cushion 20 is provided with the notches 81, 82, and 83 to distribute the load applied intensively to the buttocks and thighs. You may provide the recessed part according to the shape from a buttocks to a thigh.

  That is, as shown in FIG. 11, a recess 85 having a shape along the shape of the buttocks is formed at the bottom of the base cushion 20 at a position corresponding to the buttocks of the seated person. That is, the bottom portion of the recess 85 is formed in a curved shape centering on the sciatic portion of the seated person, and the side surface of the recess 85 is inclined along the side surface of the buttocks. Similarly, concave portions 86 and 87 having a shape along the shape of the thigh are formed at a position corresponding to the thigh of the seated person. And the recessed parts 86 and 87 are following the recessed part 85 via the protruding part formed along the seated person's body. By adopting such a configuration, the integrity with the body of the seated person can be increased, and the feeling of use and the effect of dispersing body pressure can be improved. The recesses 85, 86, and 87 may be cutout portions that penetrate the bottom surface portion. With such a configuration, material costs can be reduced.

  In the present embodiment, the height of the air cell 100 in the buttocks support region 150, the right thigh support region 151, and the left thigh support region 152 is formed to be lower than the height of the other air cells 100. Although the degree difference is given to the pressing force, the notches 81, 82, 83 provided in the base cushion 20 can be formed without forming the area where the degree difference is given to the cell unit 11 as described above. Thus, it is possible to make a difference in the pressing force.

  In this way, the cell unit 11 is configured not to partition the area where the pressing force is given, but to give the pressing force only by the notches 81, 82, 83 of the base cushion 20. For example, when manufacturing a cushion 1 having different sizes of areas with a difference in pressing force depending on age and sex, such as for adults, children, or women, the notches 81, 82, 83 of the base cushion 20 Since only the size needs to be changed, the manufacturing cost can be reduced. Moreover, since these notches 81, 82, 83 have a simple configuration in which the base cushion 20 is simply notched, the degree of freedom in design can also be improved.

[About the second embodiment]
By the way, the chair floor slip prevention cushion 1 described in the above embodiment has a cushion 1, a cord and the like for performing on / off of the air cell supply / exhaust operation and adjusting the degree of expansion / contraction of the air cell by the seated person. It is also possible to provide a remote control device connected via the.

  However, when such a remote control device is provided, a seated person may have trouble placing the remote control device. In particular, when the cushion 1 is applied to a wheelchair, there are many cases where the wheelchair does not have a space for storing small items such as a remote control device. It is inconvenient because it must be placed on the knee. In addition, when the seated person sits on the chair or leaves the chair, the cord may get in the way, which causes a problem in appearance.

  Thus, in the chair floor slip prevention cushion according to the second embodiment of the present invention, the above-described problems are solved by providing the cushion cover with the storage portion of the remote control device.

  That is, the floor slip prevention cushion for a chair according to the second embodiment includes a control unit that controls the air cell supply / exhaust operation and a cushion cover that covers the cushion body, and the cushion cover is formed at least on the frame body. It was set as the structure which has an accommodating part which accommodates a control unit in the part which covers the surrounding side surface of 2 area | region.

  Here, the control unit is a remote control device for the seated person to operate the air cell air supply / exhaust operation. The control unit includes a pump, a control unit, a solenoid valve, etc., and a cord of a predetermined length. By connecting via, the seated person can operate the air cell at hand.

  The chair floor slip prevention cushion according to the present embodiment is provided with a storage portion for storing the control unit in the cushion cover, so that the seat of the control unit can be placed even when the seated person does not use the control unit. I am trying not to be troubled.

  Moreover, since the storage portion is provided at a position corresponding to the peripheral side surface of the cushion cover including the second region (frame body) in the cushion cover, the seated person can easily take out and store the control unit. Can be done.

  In particular, in the chair floor slip prevention cushion according to the present embodiment, the storage portion is disposed at a position corresponding to the peripheral side surface of the second region on the front side of the seated person in the cushion cover.

  That is, usually, there is a certain gap between the seating person's front side of the chair floor slip prevention cushion and the seated person's calf, and by disposing the storage part at this position, Wasteful space can be used effectively.

  Further, in the previous embodiment, the air supply / exhaust device was disposed on the rear side of the seated person and separately from the cushion main body, but in this embodiment, it is disposed on the front side of the seated person of the cushion main body. In addition, it is configured to be accommodated in the cushion cover together with the cushion body and the like. Therefore, even when the operation is performed without removing the control unit from the storage portion, the control unit comes into contact with the second region or the air supply / exhaust device made of a hard material, so that the control unit is stable and easy to operate. It can be carried out.

  Below, the floor slip prevention cushion for chairs concerning this embodiment is demonstrated more concretely, referring drawings. FIG. 12 is an exploded perspective view of the chair floor slip prevention cushion according to the second embodiment, and FIG. 13 is a side view of the front side of the seated person of the cushion cover according to the second embodiment. FIG. 14 is a diagram showing variations of the storage unit according to the second embodiment, and FIG. 15 is a diagram for explaining the shape of the supply / discharge pipe of the cell unit according to the second embodiment. FIG. 17 is a view showing a modification of the chair floor slip prevention cushion according to the second embodiment.

  As shown in FIG. 12, the chair floor slip prevention cushion 3 (hereinafter simply referred to as “cushion 3”) according to the present embodiment includes a cushion main body 210, a base cushion 220, a cover cushion 230, and a bottom seat 240. And an air supply / exhaust device 250, a cushion cover 260 covering these, and a remote control device 270 as a control unit.

  That is, the cushion 3 according to this embodiment is different from the cushion 1 according to the first embodiment mainly in that the remote control device 270 is provided, the lower side cushion 213 and the bottom seat 240 are newly provided, and This is different in that the storage portion 261 is provided in the cushion cover 260.

  The cushion body 210 includes a cell unit 211 having body pressure dispersibility, and an upper side cushion 212 and a lower side cushion 213 as side cushions harder than the cell unit 211.

  The cell unit 211 performs the same function as the cell unit 11 according to the first embodiment, but does not have a supply / exhaust pipe communicating with the exhaust valves 137 and 147, and a predetermined communication pipe. It differs from the cell unit 11 according to the first embodiment in that an orifice is formed. This will be described later.

  The upper side cushion 212 and the lower side cushion 213 are frame bodies formed of the same material as the side cushion 12 according to the first embodiment, and are configured to surround the cell unit 211.

  Here, a notch 215 is formed in a part of the bottom surface portion of the upper side cushion 212, and a step 218 is formed in a part of the upper end portion 214 of the lower side cushion 213. The space 215 and the stepped portion 218 form a space for accommodating the supply / discharge pipes 251 and 251 that connect the cell unit 211 and the supply / exhaust device 250.

  The base cushion 220 is a plate-like member that becomes the base of the cell unit 211, and is formed of the same material as the base cushion 20 according to the first embodiment. That is, the base cushion 220 is formed of a foam material having a higher density and higher resilience than the foam material used for the cover cushion 230.

  The upper side cushion 212, the lower side cushion 213, and the base cushion 220 can be formed of the same material. Moreover, the cover cushion 230 can use the same thing as the cover cushion 30 which the cushion 1 concerning 1st Embodiment has.

  The bottom sheet 240 is a plate-like member that serves as a foundation for the entire cushion 3, and is formed of a flexible and rigid material. By adopting such a configuration, the pressure below the cushion 3 by the cell unit 211 is absorbed by the bottom sheet, improving the stability of the cushion 3 as a whole and improving the followability to the chair on which the cushion 3 is placed. Is possible.

  In the cushion 3, the members formed in this manner are arranged in the order of the bottom sheet 240, the base cushion 220, the lower side cushion 213, the cell unit 211, the upper side cushion 212, and the cover cushion 230 from the bottom. In addition, the cell unit 211 is built in with the cover cushion 230, the upper side cushion 212, the lower side cushion 213, and the base cushion 220 as exteriors.

  In addition, when the members are stacked, the cushion 3 includes the region of the upper side cushion 212 and the region of the upper side cushion 212 that includes the lower end portion 216 and the step portion 217 of the cell unit 211. The collar portion 280 is sandwiched.

  The air supply / exhaust device 250 is configured by incorporating a pump, a control unit, a solenoid valve, and the like in a rectangular case, and is connected to the cell unit 211 via supply / exhaust pipes 251 and 251, and has a cord 271. Is connected to the remote control device 270.

  Here, in the present embodiment, the air supply / exhaust device 250 is accommodated in the cushion cover 260.

  That is, the cushion 3 is formed on a part of the base cushion 220 when the bottom seat 240, the base cushion 220, the lower side cushion 213, the cell unit 211, and the upper side cushion 212 are placed on top of each other. A predetermined space is formed by the rectangular cutout portion 221 and the opening portion 219 formed in the lower side cushion 213, and the air supply / exhaust device 250 is accommodated in this space. The air supply / exhaust device 250 can be accommodated in the cushion cover 260 integrally with each cushion, the cell unit 211, and the like.

  In the cushion 3 according to the present embodiment, the side on which the air supply / exhaust device 250 is stored is the front side of the seated person.

  Moreover, since the internal structure of the air supply / exhaust device 250 is the same as the internal structure of the air supply / exhaust apparatus 50 in the first embodiment, the description thereof is omitted.

  The remote control device 270 controls the air supply / exhaust operation of the air cell provided in the cell unit 211 according to the operation of the seated person, so that the seated person can operate the cell unit 211 with his / her hand. It is connected to the exhaust device 250 via a cord 271 having a predetermined length.

  Further, the remote control device 270 is provided with a power button 272 for performing ON / OFF operation of the air supply / exhaust device 250 and a selection button 273 for determining the degree of the air supply / exhaust operation of the cell unit 211. An instruction corresponding to the button is transmitted to a control unit built in the air supply / exhaust device 250 via a cord 271.

  The remote control device 270 incorporates a power source (for example, a lithium battery) of the air supply / exhaust device 250, and the electric power obtained from this power source is supplied to the air supply / exhaust device 250 via the cord 271. Will be supplied.

  The cushion cover 260 is a rectangular cover that can accommodate the cushion main body 210, the base cushion 220, the cover cushion 230, the bottom sheet 240, and the air supply / exhaust device 250 that are arranged in a superposed manner, and is a material that is excellent in waterproofness and air permeability. Is formed.

  And the peripheral side surface of the said cushion cover 260, ie, the part which covers these peripheral side surfaces in the state which accommodated the cushion main body 210, the base cushion 220, the cover cushion 230, the bottom seat 240, and the air supply / exhaust device 250 in the cushion cover 260. In addition, a storage portion 261 for storing the remote control device 270 is provided.

  As shown in FIG. 13, the storage portion 261 has both ends of a belt-like member formed of the same material as the cushion cover 260 at the upper edge of the cushion cover 260 and the lower edge of the fastener guard 263 formed on the cushion cover 260. The remote controller 270 can be inserted and stored in a substantially cylindrical space formed between the belt-like member and the cushion cover 260.

  Here, the fastener guard 263 is a member for concealing the fastener 262 provided over substantially the entire circumference of the cushion cover 260 and is formed of the same material as the cushion cover 260, and one end of the fastener guard 263 is attached to the fastener 262. It is integrally formed with the cushion cover 260 by being sewn to the cushion cover 260 above the attachment position.

  By adopting such a configuration, when the cushion body 210 or the like is accommodated in the cushion cover 260 or when the cushion body 210 or the like is taken out from the cover 260, the fastener guard 263 is turned up until the fastener 262 is exposed. Since the band-shaped member forming the storage portion 261 is also turned up together with the fastener guard 263, the storage portion 261 does not get in the way, and these operations can be performed smoothly and easily.

  As described above, since the cushion 3 according to the present embodiment is configured to include the storage portion 261 for storing the remote control device 270, even when the seated person does not use the remote control device 270, it is difficult to place the remote control device 270. There is no.

  In addition, since members formed of a relatively hard material such as the upper side cushion 212 and the lower side cushion 213 are disposed on the peripheral side surface of the cushion 3, the remote controller 270 is stored in the storage unit 261. Even in such a case, the hard member acts as a resistance against the pressing force generated when the seated person performs the remote control operation, and the remote control device 270 can be operated more stably. It becomes.

  By the way, if the storage portion is, for example, a pocket type having an opening in the upper portion, when the remote controller 270 is stored in the storage portion or taken out of the storage portion, the seated person's own foot becomes an obstacle, so the position of the foot There is a risk that you will have to move or raise your feet. However, such a movement is often difficult for a person with a disability such as a wheelchair user. Therefore, in the cushion 3 according to the present embodiment, the storage portion 261 has a cylindrical shape with both ends opened, and the remote controller 270 is slid from the lateral direction and inserted into the storage portion 261 from the opening. ing.

  As described above, the remote control device 270 is inserted into the storage portion 261 from the lateral direction and stored, so that the remote control device 270 is stored in the storage portion as in the case of the pocket type having an opening at the top. When the seat is stowed or taken out from the stowage, the seated person's own foot does not get in the way, and smoother stowage and takeout are possible.

  Further, as shown in FIG. 13A, the storage unit 261 is formed to be longer than the entire length of the remote control device 270, so that the remote control device 270 can be securely stored without protruding from the storage unit 261. ing.

  Further, as shown in FIG. 13B, the remote control device 270 can be used by pulling out the remote control device 270 from the opening opposite to the opening into which the remote control device 270 is inserted. At this time, the length of the cord 271 connecting the remote control device 270 and the air supply / exhaust device 250 is such that when the remote control device 270 is pulled out, the power button 272 and the selection button 273 are exposed from the storage portion 261. The connecting portion 274 between the 270 and the cord 271 is long enough not to be exposed, and preferably, the length of the center of gravity of the remote control device 270 is not exposed from the storage portion 261 to the outside.

  With this configuration, when the remote control device 270 is pulled out from the storage unit 261 and used, there is no possibility that the remote control device 270 falls from the storage unit 261.

  As shown in FIG. 12, the storage portion 261 is disposed at a position corresponding to the peripheral side surface on the front side of the seated person among the peripheral side surfaces of the cushion main body 210 and the like in the cushion cover 260.

  That is, usually, a certain amount of gap is formed between the circumferential surface of the cushion 3 on the front side of the seated person and the calf of the seated person, and by disposing the storage portion 261 at such a position, useless space is provided. Can be used effectively.

  In addition, as described above, the air supply / exhaust device 250 is disposed at a position corresponding to the circumferential side surface of the cushion 3 on the front side of the seated person among the members accommodated in the cushion cover 260. When the device 270 is operated in a state where the device 270 is stored in the storage unit 261, the air supply / exhaust device 250 is operated together with hard members such as the upper side cushion 212 and the lower side cushion 213 when the seated person performs a remote control operation. It becomes resistance to the generated pressing force, and the operation of the remote control device 270 can be performed more stably.

  Here, in the present embodiment, the storage portion 261 is formed of the same material as the cushion cover 260, but is not necessarily limited thereto, and can be formed of various materials and shapes.

  For example, as shown to Fig.14 (a), a part of strip | belt-shaped member which forms the accommodating part 261 can also be formed with transparent members, such as transparent vinyl.

  Specifically, of the band-shaped member, when the remote control device 270 is stored in the storage portion 261, a range in which the power button 272 and the selection button 273 of the remote control device 270 can be visually recognized from the outside is formed by a transparent member. And

  With such a configuration, it is possible to operate the remote control device 270 while visually recognizing the power button 272 and the selection button 273 without pulling out the remote control device 270 from the storage portion 261.

  In addition, it is good also as forming all the accommodating parts 261 with a transparent member.

  Further, as shown in FIG. 14B, the band-shaped member forming the storage portion 261 may be formed of a mesh material 265. By adopting such a configuration, the remote control device 270 is removed from the storage portion 261 in the same manner as described above. The remote controller 270 can be operated while visually recognizing the power button 272 and the selection button 273 without being pulled out. In addition, since the power button 272 and the selection button 273 can be directly touched, these buttons 272 and 273 can be pressed more reliably.

  Further, as shown in FIG. 14 (c), notches 266 are respectively formed at the positions where the power button 272 and the selection button 273 are located when the remote control device 270 is stored in the storage portion 261 in the band-shaped member forming the storage portion 261. 267 may be provided.

  With this configuration, it is possible to operate the remote control device 270 while visually recognizing the power button 272 and the selection button 273 without pulling out the remote control device 270 from the storage portion 261 as described above. In addition, since the power button 272 and the selection button 273 can be directly touched, these buttons 272 and 273 can be pressed more reliably.

  Further, by forming thick portions 268 and 269 around the notches 266 and 267, respectively, when trying to operate the power button 272 and the selection button 273 by the occupant's groping, the locations of these buttons 272 and 273 are changed. Can be easily identified. In addition, the thick portions 268 and 269 can prevent erroneous operation of the power button 272 and the selection button 273.

  By the way, the chair floor slip prevention cushion 3 according to the present embodiment is also characterized by the structure of the connecting pipe that connects the air cells in the cell unit 211.

  That is, as shown in FIG. 15, among the plurality of connecting pipes 283 provided in the cell unit, the connecting pipe 283 directly connected to the air cells 284 a to 284 i located at the center of the cell unit 211 has an orifice for pressure reduction. Is formed.

  By adopting such a configuration, the air in the air cells 284a to 284h at the position where the weight of the seated person is most likely to take is less likely to escape as compared with other air cells, so that the body pressure distribution performance by the cell unit 211 is more effective. Can be demonstrated.

  In the figure, reference numerals 281 and 282 denote supply / discharge pipes.

  By the way, for a wheelchair user, pressure massage covering the entire circumference of the thigh is dangerous. In other words, since wheelchair users often have no sense of the foot or are insensitive, blood pressure is stopped by pressure massage covering the entire circumference of the thigh, and it is impossible to add force There is a risk of not being aware and leading to a serious accident.

  Thus, the chair floor slip prevention cushion according to the present embodiment may be a cushion that performs pressure massage only from one direction.

  In this case, as shown in FIGS. 16A and 16B, the left air cell 510 for supporting the left thigh 6L of the seated person and the right thigh of the seated person are formed on the upper surface of the base cushion 530 formed in a plate shape. The cushion 500 is configured by integrally providing a cell unit 540 including a right air cell 520 that supports 6R.

  In the cushion 500, the cell unit 540 is connected to an air supply / exhaust device (not shown) via a connecting pipe 550 and a supply / discharge pipe 560. The left air cell 510 and the right air cell 520 communicate with each other in the vicinity of the connection pipe 550, and the air supplied from the air supply / exhaust device is supplied to the air cells 510 and 520 via the supply / discharge pipe 560 and the connection pipe 550, respectively. Will be sent.

  With this configuration, as shown in FIG. 16B, the cushion 500 is supplied with air from the air supply / exhaust device (not shown) to the air cells 510 and 520, so that the thighs 6L and 6R of the seated person can be obtained. In addition, a pressure in one direction can be applied upward.

  Further, the pressure applied to the thigh of the seated person does not necessarily have to be in one direction, and may be in two directions as shown in FIG.

  In such a case, as shown in FIGS. 17A and 17B, the cushion 600 has a left cell unit 610 that supports the left thigh 6L of the seated person and a seat on the upper surface of the base cushion 530 formed in a plate shape. The right cell unit 620 that supports the right thigh 6R of the person is used.

  The left cell unit 610 has the same configuration as the cushion 500 in FIG. 16, and is configured by integrally providing a left air cell 612 and a right air cell 613 on the upper surface of a base cushion 611 formed in a plate shape.

  Also, the right cell unit 620 has the same configuration as the cushion 500 in FIG. 16, and is configured by integrally providing a left air cell 622 and a right air cell 623 on the upper surface of a base cushion 621 formed in a plate shape. In the figure, 614 and 624 are communication pipes, and 615 and 625 are supply and discharge pipes.

  By adopting such a configuration, as shown in FIG. 17B, when the air is supplied to each cell unit 610, 620 from the air supply / exhaust device (not shown), the cushion 600 has the thighs 6L, 6R of the seated person. In addition, two-way pressures can be applied by the pressure from the left air cells 612 and 622 and the pressure from the right air cells 613 and 623, respectively.

  In this way, the above-described danger can be avoided by using pressure massage from only one direction or two directions.

  It should be noted that by providing the cushions 500 and 600 with storage portions, the same effects as in the present embodiment can be obtained.

[About the third embodiment]
Hereinafter, 3rd Embodiment of the floor slip prevention cushion for chairs concerning this invention is described.

  In the second embodiment described above, the storage portion 261 is provided on the peripheral side surface of the cushion cover 260, and the remote control device 270 is stored in the storage portion 261. However, the chair floor slip prevention cushion according to the third embodiment is described. Then, it replaces with this accommodating part 261, and it is set as the structure which provides the holding | maintenance part hanging from the surrounding side surface of a cushion main body, and hold | maintains a remote control device and an air supply / exhaust device with the said holding | maintenance part.

  That is, the chair floor slip prevention cushion according to the present embodiment includes a cushion main body having an air cell that expands and contracts by air supply and exhaust, and a functional unit that executes air supply and exhaust of the cushion main body. The holding unit holds the functional unit in a suspended state from a position corresponding to the peripheral side surface of the main body.

  Thus, by having a holding | maintenance part, there is no trouble in the storage place of a function part unit. Further, when the seated person sits on the chair or leaves the chair, the functional unit does not get in the way, and the appearance can be improved.

  In addition, the holding portion is configured to hold the functional unit in a suspended state from the peripheral side surface of the cushion body. By holding the functional unit with this holding portion, the cushion cover is moved by the weight of the functional unit. It is possible to make the cushion cover free from wrinkles and twists by being pulled.

  In this way, by making the cushion cover free from wrinkles and kinks, not only the appearance of the cushion can be improved, but also the air cell and the cushion cover overlap uniformly, so that the air cell can be The thigh can be surely brought into contact, and the body pressure dispersion performance by the air cell can be exhibited more effectively.

  Further, the holding portion is provided at a position corresponding to the peripheral side surface of the cushion main body on the front side of the seated person in the cushion cover.

  That is, as described above, there is usually a predetermined gap between the circumferential surface of the cushion body on the front side of the occupant and the calf portion of the occupant, and the holding portion is disposed at this position. Thus, this wasteful space can be used effectively and the functional unit can be held in a place where it does not interfere with the seated person.

  In addition, since the holding part is connected to the upper edge of the peripheral side surface of the cushion body, the holding part is continuously attached to the cushion cover without a step, and the appearance and sitting of the chair floor slip prevention cushion as a whole There is no loss of comfort. In addition, the cushion cover can be more reliably removed from wrinkles and twists.

  Furthermore, since the holding portion is provided over the entire width of the peripheral side surface on the front side of the seated person, the strength of the holding portion can be sufficiently maintained, and the holding portion is damaged when a large force is applied. Can be prevented. Moreover, since it can be pulled over the entire width, wrinkles and twists of the cushion cover can be taken more uniformly.

  Moreover, the holding part has a unit storage part for storing the functional part unit, and this unit storage part has an opening on the back side of the seated person.

  With this configuration, the functional unit stored in the unit storage portion is difficult to visually recognize from the outside, and thus the appearance of the chair floor slip prevention cushion as a whole is not impaired.

  In addition, the cushion body is composed of a first region composed of air cells and a second region composed of a frame formed of a foam material, as in the above embodiments, and is formed at the end of the air cell by the frame. The air cell is surrounded with the buttocks sandwiched.

  By adopting such a configuration, each of the plurality of air cells arranged in the first region expands and contracts due to air supply / exhaust, so that the load applied to the seated person's body is more concentrated by being concentrated on a specific part of the seated person's body. Bed slip can be effectively prevented.

  Further, by adopting a configuration in which the buttock of the first region is sandwiched by the second region formed in a frame shape, the cushion body without narrowing the first region that receives the buttock or thigh of the seated person Can be made compact, for example, when it is placed on a seat of an automobile with a limited seating area, the effective area of the first region having body pressure dispersibility is taken as wide as possible. be able to. Furthermore, with the above-described configuration, the first area and the second area can be integrated, and the comfort and usability of the cushion body can be improved.

  The holding portion may be configured to be detachable from the cushion cover. With this configuration, the holding portion can be detachable from the cushion cover. Thus, for example, when the chair floor slip prevention cushion is simply used as a cushion without performing air supply / exhaust operation by the air cell, that is, when the functional unit is unnecessary, the chair floor slip prevention cushion is removed by removing the holding portion. Can be used more comfortably.

  Hereinafter, the floor slip prevention cushion for a chair according to the present embodiment will be described more specifically with reference to the drawings. FIG. 18 is a view showing the use state of the chair slip prevention cushion for the chair according to the third embodiment, FIG. 19 is an exploded perspective view of the chair slip prevention cushion for the chair according to the third embodiment, and FIG. It is a back perspective view of the floor slip prevention cushion for chairs concerning embodiment, FIG.21 and FIG.22 is a modification of the holding | maintenance part concerning 3rd Embodiment, FIG.23 is the floor slip for chair concerning 3rd Embodiment. It is a modification of a prevention cushion.

  Here, as an example, a case where the chair floor slip prevention cushion is placed on a car seat will be described, but the present invention is not limited to this.

  As shown in FIG. 18, the chair floor slip prevention cushion 4 (hereinafter simply referred to as “cushion 4”) according to the present embodiment is used by being placed on the seat surface of a seat C ′ of an automobile. The cushion body 310 having an air cell that expands and contracts by air supply and exhaust, the cover cushion 320 placed on the cushion body 310, and the cushion body 310 are placed on the lower part of the cushion body 310. And a functional unit 330 for supplying and exhausting the cushion body 310 and a holding unit 340 for holding the functional unit 330 in a suspended state from the peripheral side surface of the cushion body 310. It is provided and configured.

  The cushion cover 300 is a substantially rectangular cover formed of a material excellent in waterproofness and air permeability.

  Further, in the present embodiment, the functional unit 330 is configured by a supply / exhaust device 350 incorporating a pump, a control unit, a solenoid valve, and the like, and a remote control device 360 for a seated person to operate an air cell supply / exhaust operation. By connecting the remote control device 360 to the air supply / exhaust device 350 via a cord 361 having a predetermined length, the seated person can operate the air cell at hand.

  In the figure, reference numerals 351 and 352 denote supply / exhaust pipes for supplying air from a pump built in the supply / exhaust device to the air cell, and reference numeral 362 denotes a power supply for performing ON / OFF operation of the supply / exhaust device 350. Buttons 363 are selection buttons for determining the degree of the supply / exhaust operation.

  The holding part 340 is a flat member formed of the same material as the cushion cover 300, and the width of the upper end is formed to be the same as the width of the cushion cover 300, and the upper end is the upper end of the peripheral side surface of the cushion cover 300. It is integrated with the cushion cover 300 by being attached to the edge. At this time, the lower end of the holding portion 340 is suspended from the cushion cover 300. Note that the holding portion does not necessarily have to be suspended from the cushion cover 300.

  The holding unit 340 is formed with a unit storage unit 341 for storing the air supply / exhaust device 350 as the functional unit 330 and the remote control device 360 at the lower end, and the air supply / exhaust device 350 is stored in the unit storage unit 341. And by storing the remote control device 360, these can be held in a detachable state in a suspended state.

  By adopting such a configuration, the seated person can be easily taken out as needed without being troubled by the place where the air supply / exhaust device 350 and the remote control device 360 are placed.

  Further, the cushion 4 accommodates the air supply / exhaust device 350 and the remote control device 360 in the unit storage portion 341 and holds them in a suspended state, so that the weight of the air supply / exhaust device 350 and the remote control device 360 is reduced. When the cushion cover 300 is pulled, the cushion cover 300 can be in a state free from wrinkles and twists.

  Accordingly, not only the appearance of the cushion 4 as a whole can be improved, but also the air cell accommodated in the cushion cover 300 and the cushion cover 300 can be uniformly overlapped. It becomes possible to make it contact | abut reliably by a thigh.

  Further, the holding portion 340 is provided at a position in the cushion cover 300 corresponding to the peripheral side surface of the cushion main body 310 on the front side of the seated person.

  That is, as described above, there is usually a predetermined gap between the circumferential surface of the cushion 4 on the front side of the occupant and the calf portion of the occupant, and the holding portion is disposed at this position. Thus, this useless space can be used effectively, and the functional unit 330 can be held in a place that does not disturb the seated person.

  Further, since the holding portion 340 is connected to the upper end edge of the peripheral side surface of the cushion body 310, the holding portion 340 is continuously attached to the cushion cover 300 without a step, and the appearance of the cushion 4 as a whole or There is no loss of comfort. Moreover, the wrinkles and twists of the cushion cover 300 can be removed more reliably.

  Furthermore, the holding | maintenance part 340 is provided over the full width of the surrounding side surface of a seated person front side. With this configuration, the strength of the holding portion 340 can be sufficiently maintained, and a situation in which the holding portion is damaged when a large force is applied can be prevented. In addition, the wrinkles and twists of the cushion cover 300 can be removed more uniformly.

  Next, the configuration of the cushion main body 310, the cover cushion 320, and the bottom sheet 400 housed in the cushion cover 300 will be described with reference to FIG.

  As shown in FIG. 19, the cushion body 310 includes a cell unit 370 having body pressure dispersibility and a side cushion 380 that is harder than the cell unit 370. The cell unit 370 has the same configuration as the cell unit 211 according to the second embodiment, and is arranged so that the air cell 371 belonging to the first system and the air cell 372 belonging to the second system are adjacent to each other. ing.

  The side cushion 380 is a frame formed of the same material as the side cushion 12 according to the first embodiment, and is configured to surround the cell unit 370. In the drawing, reference numeral 381 denotes a cutout portion for forming an accommodation space for the supply / discharge pipes 351 and 351 that connect the cell unit 370 and the supply / exhaust device 350.

  The same cover cushion 320 as the cover cushion 30 of the cushion 1 according to the first embodiment can be used.

  The bottom sheet 400 is a plate-like member that serves as a foundation for the cushion 4 as a whole, and is formed of a flexible and rigid material. By adopting such a configuration, the pressure below the cushion 4 by the cell unit 370 is absorbed by the bottom sheet, improving the stability of the cushion 4 as a whole and improving the followability to the chair on which the cushion 4 is placed. Is possible.

  The cushion 4 is superposed and disposed so that the cell unit 370 is incorporated with the bottom sheet 400, the cover cushion 320, and the side cushion 380 as exteriors.

  As described above, by housing the hard side cushion 380 in the cushion cover 300, when the cushion cover 300 is pulled by the weight of the air supply / exhaust device 350 or the remote control device 360 stored in the unit storage portion 341, As a result, the cushion cover 300 is less likely to be bent, so that the cushion cover 300 can be more effectively wrinkled and twisted.

  Moreover, since the side cushion 380 is formed in a frame shape, the cross-sectional shape of the upper end edge of the peripheral side surface of the cushion 4 is almost right-angled, the edge is wrinkled, the suspension force works well, By making the shape of the upper edge straight, a suspension force can be applied more.

  The air supply / exhaust device 350 is configured by incorporating a pump, a control unit, a solenoid valve, and the like in a rectangular case, and is connected to the cell unit 370 via supply / exhaust pipes 351 and 352, The remote controller 360 is connected via a cord 361.

  The remote control device 360 controls the air supply / exhaust operation of the air cell 371 provided in the cell unit 370 according to the operation of the seated person, so that the seated person can operate the cell unit 370 with his / her hand. It is connected to the air supply / exhaust device 350 via a cord 361 having a predetermined length.

  Further, the remote control device 360 is provided with a power button 362 for performing ON / OFF operation of the air supply / exhaust device 350 and a selection button 363 for determining the degree of air supply / exhaust operation of the cell unit 370. An instruction corresponding to the button is transmitted to a control unit built in the air supply / exhaust device 350 via a cord 361.

  The remote control device 360 has a built-in power source (for example, a lithium battery) for the air supply / exhaust device 350, and the electric power obtained from this power source is supplied to the air supply / exhaust device 350 via the cord 361. Will be supplied. The remote control device 360 does not necessarily have a built-in power supply, and power may be supplied to the cushion 4 via a predetermined cable from a cigar pocket provided in the automobile.

  In the present embodiment, the total length of the remote control device 360 is shorter than the total length of the air supply / exhaust device 350.

  Next, a more specific configuration of the unit storage unit 341 provided in the holding unit 340 will be described with reference to FIG.

  As shown in FIG. 20A, the unit storage portion 341 is a pocket-shaped member formed at the lower end of the holding portion 340, and the opening that can store the air supply / exhaust device 350 and the remote control device 360 is located behind the seat. Have on the side.

  With this configuration, the functional unit 330 housed in the unit housing portion 341 is difficult to visually recognize from the outside, so that the appearance of the cushion 4 as a whole is not impaired.

  Further, the unit storage portion 341 is provided with a hook-and-loop fastener 342 on the surface on the back side of the seated person, and the upper end edge of the unit storage portion 341 is provided with a substantially belt-like cover body 343 attached with one end thereof. A hook-and-loop fastener 344 is provided on the surface of the cover body that faces the unit storage portion 341.

  And the holding | maintenance part 340 is comprised so that the opening part of the unit accommodating part 341 may be partially closed as shown in FIG.20 (b) by making these hook-and-loop fasteners 342 and 344 contact and adhere. Has been.

  By adopting such a configuration, for example, even when the vehicle having the seat C ′ on which the cushion 4 is placed passes through a gravel road and the unit storage portion 341 is greatly shaken, it is stored in the unit storage portion 341. The air supply / exhaust device 350 and the remote control device 360 are not likely to jump out of the unit storage portion 341, and even if the holding portion 340 is provided on the front side of the seated person, it does not hinder driving.

  In the figure, reference numeral 301 denotes a fastener that is opened and closed when the cushion body 310 and the cover cushion 320 housed in the cushion cover 300 are taken in and out. The fastener 301 is supplied from a gap formed by slightly opening the fastener 301. The exhaust pipes 351 and 352 are inserted through the cushion cover 300.

  The unit storage portion 341 has a structure in which the width thereof is gradually and uniformly narrowed toward the lower end of the holding portion 340. Specifically, the width of the opening of the unit storage unit 341 is the same as the upper end of the holding unit 340 (that is, the same width as the cushion cover 300), and the width of the bottom of the unit storage unit 341 (that is, the holding unit). The width of the lower end of the part 340 is equal to the entire length of the air supply / exhaust device 350.

  As described above, by forming the unit storage portion 341 in a tapered shape, when the air supply / exhaust device 350 and the remote control device 360 are stored in the unit storage portion 341, the air supply / exhaust device 350 and the remote control device 360 are stored by the wide opening. In addition, it can be prevented from shaking in the unit storage portion 341 after being stored.

  In addition, by uniformly narrowing the width of the unit storage portion 341 toward the lower end, the air supply / exhaust device 350 and the remote control device 360 are positioned in the approximate center of the holding portion 340 when viewed from the front. The twist can be taken more uniformly.

  Here, as the overall shape of the holding portion 340 including the unit storage portion 341, for example, an inverted trapezoidal shape whose width is gradually narrowed downward from the upper edge of the peripheral side surface of the cushion cover 300 may be used. However, in such a shape, a force in a direction along the shape of the holding portion 340 is applied to both ends of the upper end edge of the peripheral side surface of the cushion cover 300, so that the force applied to the upper end edge of the peripheral side surface of the cushion cover 300 Is not uniform, and there is a possibility that the effect of removing the wrinkles and twists of the cushion cover 300 may be hindered.

  Therefore, in this embodiment, the overall shape of the holding portion 340 including the unit storage portion 341 is a so-called home base shape in which the width from the upper end edge of the holding portion 340 to the opening portion of the unit storage portion 341 is the same. It is said.

  In this way, the width of the holding portion 340 is not narrowed from the upper end edge of the holding portion 340 but is narrowed from a lower position than the upper end edge of the holding portion 340, thereby being applied to the upper end edge of the peripheral side surface of the cushion cover 300. The difference in force can be eliminated as much as possible, and the cushion cover 300 can be more effectively creased and twisted.

  Moreover, by making the width of the upper end edge of the holding portion 40 and the width of the opening of the unit storage portion 41 the same, the opening of the unit storage portion 41 can be formed wider, and the air supply / exhaust device 50 and the remote control device 60 In addition to making it easier to put in and out, the supply and discharge pipes 51 and 52 can be made less visible from the outside, and the appearance of the cushion 1 as a whole can be improved.

  At this time, in the home base-shaped holding portion 340, the length of the straight portion from the upper end edge of the holding portion 340 to the opening of the unit storage portion 341 is set to be equal to or greater than the thickness of the cushion 4, and is equal to or greater than the thickness of the cushion 4. It is preferable to provide an opening at the position. If this is an inverted trapezoidal shape that tapers from the upper end of the holding portion 340, the opening / closing of the functional unit 330 is suspended when the opening of the unit storage portion 341 is provided at the upper end portion of the peripheral side surface of the cushion cover 300. It is difficult to perform in the state, and is difficult to perform unless the cushion 4 is turned upside down. Also, if the opening of the unit storage portion 341 is provided in the middle of the taper, the opening becomes narrow, and the functional unit 330 Is difficult to store. On the other hand, if the holding portion 340 has the above-described configuration, the opening of the unit storage portion 341 is a wide opening that is the same as the width of the cushion 4, so that the functional unit 330 can be easily stored and the holding portion Since the lower end of 340 has the same width as that of the functional unit 330, the functional unit 330 can be prevented from rattling in the unit storage unit 341.

  Here, the holding portion 340 may be configured to be detachable from the cushion cover 300. In such a case, as shown in FIG. 21A, the cushion cover 300 and the holding portion 340 may be connected by a wire fastener 302.

  That is, the dentitions 303 and 345 are provided on the upper end edge of the circumferential side of the cushion cover 300 on the front side of the seated person and the upper end edge of the holding portion 340, respectively, and the slider 304 that engages these dentitions 303 and 304 is provided. The configuration is as follows.

  With this configuration, for example, when the cushion 4 is simply used as a cushion without performing the air supply / exhaust operation by the cell unit 370, that is, when the air supply / exhaust device 350 and the remote control device 360 are unnecessary, the slider 304 is used. Since the holding portion 340 can be removed from the cushion cover 300 by moving in the predetermined direction along the tooth rows 303 and 345 to release the meshing state of these service tooth rows 303 and 345, the seated person can use the cushion 4 Can be used more comfortably.

  In the present embodiment, the holding portion 340 is formed of the same material as that of the cushion cover 300, but is not necessarily limited to this, and can be formed of various materials and shapes.

  For example, a part of the holding portion 340 can be formed of a transparent member such as transparent vinyl.

  Specifically, of the holding unit 340, when the remote control device 360 is stored in the unit storage unit 341, a range in which the power button 362 and the selection button 363 of the remote control device 360 are visible from the outside is formed of a transparent member. I decided to.

  With such a configuration, it is possible to operate the remote control device 360 while visually recognizing the power button 362 and the selection button 363 without removing the remote control device 360 from the unit storage portion 341.

  It should be noted that all of the unit storage portion 341 may be formed of a transparent member.

  In addition, the holding unit 340 may be made of a mesh material. By adopting such a configuration, the power button 362 and the selection button 363 can be visually recognized without removing the remote control device 360 from the unit storage unit 341 as described above. The remote controller 360 can be operated. In addition, since the power button 362 and the selection button 363 can be directly touched, these buttons 362 and 363 can be pressed more reliably.

  In addition, the holding unit 340 may have a configuration in which notches are provided at locations where the power button 362 and the selection button 363 are located when the remote control device 360 is stored in the unit storage unit 341.

  With this configuration, as described above, it is possible to operate the remote control device 360 while visually recognizing the power button 362 and the selection button 363 without removing the remote control device 360 from the unit storage portion 341. In addition, since the power button 362 and the selection button 363 can be directly touched, these buttons 362 and 363 can be pressed more reliably.

  Further, by making the periphery of each notch portion thick, when trying to operate the power button 362 or the selection button 363 by searching for a seated person, the location of these buttons 362 and 363 can be easily specified. In addition, such a configuration can prevent erroneous operation of the power button 362 and the selection button 363.

  In the present embodiment, the holding portion 340 has a unit storage portion 341 having an opening on the back side of the seated person, and the functional portion unit 330 is stored and held in the unit storage portion 341. It is not limited to this.

  For example, the holding portion may have a cylindrical shape with both ends open.

  In this case, as shown in FIG. 22, the holding portion 346 is formed by folding a vertically long belt-shaped member 347 and attaching the both ends to the upper edge of the peripheral side surface of the cushion cover 300 in a state where both ends are in contact with each other. Is done.

  As a result, a cylindrical space is formed in the holding portion 346, so that this space can be used as the unit storage portion 348.

  By setting it as this structure, a holding | maintenance part and a unit accommodating part can be formed with a simpler member, and it becomes possible to manufacture the floor slip prevention cushion for chairs concerning this embodiment more cheaply.

  Further, since the holding portion 346 has an opening in the left-right direction of the seat C ′, the functional unit 330 is easily put in and out as compared with the holding portion 340 having an opening on the back side of the seated person. be able to.

  In addition, the cushion 4 can be manufactured at a lower cost by adopting a configuration in which the cushion 4 has a structure in which the effect of dispersing the body pressure by the cell unit is given only to the periphery of the thigh.

  In such a case, as shown in FIG. 23, the cushion 4 may be configured such that the cell unit 390 accommodated inside the cushion cover 300 is provided only around the thigh.

  At this time, the height of the air cell provided in the cell unit 390 is configured so as to gradually decrease from the thigh of the seated person toward the buttocks. That is, as shown in FIG. 23, the height of the air cell 392 arranged on the back side of the seated person is lower than that of the air cell 391 arranged on the front side of the seated person. The air cell 393 arranged at the position is configured to have a lower height.

  By adopting such a configuration, it is possible to eliminate as much as possible the level difference between the portion where the cell unit 390 is disposed and the portion where the cell unit 390 is not disposed, so that the sitting comfort of the seated person is not impaired. .

  Note that the size and shape of the cushion cover 300 are changed in accordance with the shape of the cell unit 390 for the side cushion and the cover cushion.

  In addition, the chair floor slip prevention cushion 4 according to the present embodiment is assumed to be used by being placed on a seat C ′ of an automobile, and the cushion cover 300 is provided so that the overall thickness is reduced to some extent. Only the cell unit 370, the side cushion 380, the cover cushion 320, and the bottom sheet 400 are accommodated, but a lower side cushion, a base cushion, and the like may be provided separately.

  In the present embodiment, the functional unit 330 includes the air supply / exhaust device 350 and the remote control device 360. However, a unit in which the air supply / exhaust device 350 and the remote control device 360 are integrally formed may be used. .

  In addition, the chair floor slip prevention cushion 4 according to the present embodiment is also characterized by the structure of the electromagnetic valve built in the air supply / exhaust device.

  That is, the conventional solenoid valve is a so-called normally-closed pressure reducing solenoid valve, and the plunger that opens and closes the valve body is energized in a direction against the pressure from the pump by the energizing force of the spring. However, in such a configuration, when the seated person sits on the cushion 4, the pressure from the air cell and the biasing force by the spring are more than the electromagnetic force for moving the plunger against the biasing force of the spring. There was a risk that the resultant force won and the solenoid valve did not operate normally.

  Therefore, in this embodiment, such a situation is prevented by setting the structure of the exhaust solenoid valve to a state in which the plunger is biased in a direction against the pressure from the air cell by the spring.

  With this configuration, even if a large seated person sits on the cushion 4 and the air cell is subjected to a pressure higher than expected, the urging force of the spring acts in a direction against the pressure from the air cell, so the electromagnetic force is insufficient. There is no risk of accidents.

  Further, with the configuration as described above, the solenoid valve can also have a function as a safety valve.

  That is, for example, when the urging force by the spring is 10 kPa, if the pressure from the air cell is 8 kPa, the urging force by the spring is superior and the valve will not open. In addition, when a seated person sits on the cushion 4 and the pressure from the air cell increases to 20 kPa, the plunger moves against the urging force of the spring to open the valve, which is unexpected in the air cell. It is possible to prevent a situation in which a large pressure is applied and burst.

  According to the embodiments described above, the following chair floor slip prevention cushion can be realized.

  In the chair floor slip prevention cushion used by being placed on the seat of a chair (for example, wheelchair C), the first region (for example, the cell unit 11) having body pressure dispersibility and the first region are surrounded. The floor slip prevention cushion (1) for a chair comprising a cushion body (10) having a second region (for example, the side cushion 12) that is harder than the first region.

  A chair in which the first region (for example, the cell unit 11) is formed by arranging a plurality of air cells (100) that can be freely supplied and exhausted, while the second region (for example, the side cushion 12) is formed of a foam material. Anti-floor cushion (1).

  The second region (for example, the side cushion 12) is a frame formed of a foam material, and the second region (for example, the side cushion 12) holds the flange (120) formed at the end of the air cell (100) with the frame. A chair floor slip prevention cushion (1) surrounding one region (for example, the cell unit 11).

  A cushion for preventing a floor slip for a chair (1) in which a region (for example, the regions 150, 151, and 152) having a difference in pressing force is defined in the first region (for example, the cell unit 11).

  A chair floor slip prevention cushion (1) in which areas (for example, areas 151 and 152) in which the degree of stimulation force on the thigh of the seated person is given a difference are formed in the first area (for example, the cell unit 11).

  The chair floor slip prevention cushion (1) in which a recess (71, 72) is formed at a position corresponding to the thigh of the seated person in the second region (for example, the side cushion 12).

  A base cushion (20) is placed on the lower side of the cushion body (10), and a cover cushion (30) is placed on the upper side, and the cover cushion (30) is made of a material having a lower resilience than the base cushion (20). Anti-floor cushion for chairs (1).

  The air cell (284) includes a control unit (for example, a remote control device 270) that controls the air supply / exhaust operation, and a cushion cover (260) that covers the cushion body (210), and the cushion cover (260) is at least a frame ( For example, the chair floor slip prevention cushion (3) which has the storage part (261) which stores a control unit in the part which covers the surrounding side surface of the upper side cushion 212).

  A storage part (261) is a floor slip prevention cushion (3) for chairs arranged on the peripheral side surface on the front side of the seated person.

  As mentioned above, some of the embodiments of the present invention have been described in detail with reference to the drawings. However, these are merely examples, and the present invention is described in other forms in which various modifications and improvements are made based on the knowledge of those skilled in the art. It is possible to carry out the invention.

It is explanatory drawing which shows the use condition of the floor slip cushion for chairs which concerns on this embodiment. It is a disassembled perspective view of the cushion. It is a typical explanatory view of the 1st field in the cushion. It is a control block diagram of the air cell in the cushion. It is explanatory drawing of the supply / exhaust timing of the air cell in the cushion. It is a typical explanatory view of the 1st field in the cushion. It is sectional drawing in the AA of FIG. It is sectional drawing in the BB line of FIG. It is explanatory drawing which shows the modification of a side cushion and a base cushion. It is explanatory drawing which shows the modification of an air cell. It is explanatory drawing which shows the modification of the base cushion in the cushion. It is a disassembled perspective view of the floor slip prevention cushion for chairs concerning 2nd Embodiment. It is a side view of the seated person front side of the cushion cover in the cushion. It is a figure which shows the variation of the accommodating part in the cushion. It is a figure for demonstrating the shape of the supply / discharge pipe of the cell unit in the cushion. It is a modification of the cushion. It is a modification of the cushion. It is a use condition figure of the floor slip prevention cushion for chairs concerning a 3rd embodiment. It is a disassembled perspective view of the cushion. It is a back perspective view of the cushion. It is a modification of the holding | maintenance part in the same cushion. It is a modification of the holding part in the cushion. It is a modification of the cushion.

Explanation of symbols

C, C ′ Chair 1, 3, 4 Chair slip prevention cushion 2, 260, 300 Cushion cover 10, 210, 310 Cushion body 11 First region 12 Second region 20, 220 Base cushion 30, 230, 320 Cover Cushion 100, 211, 370 Air cell 120, 280 Saddle 261 Storage part 250, 350 Air supply / exhaust device 270, 370 Remote control device

Claims (9)

In the chair floor slip prevention cushion used by being placed on the seat surface of the chair,
A first region having body pressure dispersibility;
A second region surrounding the first region and being harder than the first region;
A cushion misalignment prevention cushion for a chair, comprising a cushion body having the above.   2. The chair floor slip prevention cushion according to claim 1, wherein the first region is formed by arranging a plurality of air cells that can be supplied and exhausted, and the second region is formed of a foam material.   The second region is a frame formed of the foam material, and the first region is surrounded in a state in which a flange formed at an end of the air cell is sandwiched by the frame. The floor slip prevention cushion for chairs according to claim 2.   The chair floor slip prevention cushion according to any one of claims 1 to 3, wherein a region having a difference in pressing force is defined in the first region.   5. The chair floor slip prevention cushion according to claim 1, wherein a region with a degree of difference in stimulation force with respect to a thigh of a seated person is formed in the first region. .   6. The chair floor slip prevention cushion according to claim 1, wherein a recess is formed at a position corresponding to the thigh of the seated person in the second region.   A base cushion is disposed on the lower side of the cushion main body according to any one of claims 1 to 6, a cover cushion is disposed on the upper side, and the cover cushion is formed of a low-rebound material than the base cushion. An anti-floor cushion for chairs. A control unit for controlling the supply / exhaust operation of the air cell;
A cushion cover covering the cushion body,
The cushion cover is
The floor slip prevention cushion for a chair according to claim 3, further comprising a storage portion for storing the control unit in a portion covering at least a peripheral side surface of the frame body.   The chair floor slip prevention cushion according to claim 8, wherein the storage portion is disposed on a peripheral side surface on the front side of a seated person.