JP3230901U - Japanese cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushion which is not significantly impaired in appearance, is excellent in usability, and reduces the burden on the body when sitting. SOLUTION: A cushion 1 includes a cushion main body including a plurality of rod-shaped members 10A to 10C provided in parallel in the front-rear direction X, and a bag body 3 provided below the cushion main body capable of allowing air to flow in and out. The bag body 3 has a first air bag and a second air bag 8 connected to the first air bag by a tube connector 7, and air is introduced into the first air bag and the second air bag 8. By being injected, the bulge portion 9 is formed at a position corresponding to the instep portion A or the buttock portion B of the user H's foot. [Selection diagram] Fig. 3

Description

The present invention relates to a cushion that reduces the burden on the body when sitting.

In recent years, the number of foreign tourists experiencing Japan's unique tatami culture is increasing. In tatami culture, people often sit on cushions, and for foreigners who are not accustomed to sitting on cushions, sitting in an unfamiliar posture puts a strain on their legs and hips. In particular, if you continue to sit upright, your legs will become numb. So far, cushions have been disclosed that minimize the burden on the legs and hips when sitting upright (for example, Patent Document 1 and Patent Document 2).

Patent Document 1 discloses a knee-folding cushion that can be easily assembled when sitting upright with knee-folding and whose height can be adjusted according to individual differences in the body shape of the user. The knee-folded cushion includes a cushion and a butt pillow fixed to the top of the cushion. The butt pillow is removable from the cushion, and when the knee-folded cushion is not used, it is removed from the cushion and stored. When the user of this knee-folding cushion sits upright, the load on the legs can be reduced and the pain of sitting upright can be relieved by placing the buttocks on the pillow.

Patent Document 2 discloses a water cushion that can reduce the burden on the legs and hips when sitting upright on the floor. The water cushion features a frame and a mattress infused with tap water inside the frame. When the user of this water cushion sits upright, the mattress is deformed according to the rising shape of both feet due to buoyancy, so that the pressure on both feet can be dispersed. Then, the blood flow in the capillaries of the user is not obstructed, and the occurrence of numbness in both legs can be reduced.

Japanese Unexamined Patent Publication No. 2012-249688 JP-A-2017-164436

Since the knee-folded cushion described in Patent Document 1 has a butt pillow behind and above the cushion, the appearance of the cushion at the time of use is significantly changed, and the unique taste of the cushion is impaired.
On the other hand, since the water cushion described in Patent Document 2 uses water, if it is used for a long period of time, water may leak due to deterioration of the mattress. In addition, since the weight of water is much larger than the weight of the cushion material normally used for cushions, labor is required for transportation, which is not convenient.

Therefore, an object of the present invention is to provide a cushion that does not significantly impair the appearance, is excellent in usability, and reduces the burden on the body when sitting.

The cushion according to the present invention includes a cushion main body including a plurality of rod-shaped members provided in parallel in the front-rear direction and a bag body provided below the cushion main body and capable of allowing air to flow in and out. It has a first air bag and a second air bag connected to the first air bag by an air passage member, and air is injected into the first air bag and the second air bag to allow the user's foot. It is characterized in that a bulge is formed at a position corresponding to the instep or the buttocks of the bag.

The cushion according to the present invention is characterized in that a mesh sheet is provided below the cushion body.

The cushion according to the present invention has a rod-shaped member having a first rod-shaped member, a second rod-shaped member having a volume smaller than that of the first rod-shaped member, and a third rod-shaped member having a volume smaller than that of the second rod-shaped member. Since the first rod-shaped member, the second rod-shaped member, and the third rod-shaped member contain granular wool containing air inside, the first rod-shaped member, the second rod-shaped member, and the third rod-shaped member are elastic. The second rod-shaped member is provided adjacent to the front of the first rod-shaped member, the third rod-shaped member is provided adjacent to the front of the second rod-shaped member, and at least the first rod-shaped member is provided. By being provided at a position facing the bag body, the height of the bulge is secured, the angle of the user's ankle is maintained, and the user's sitting posture is tilted forward, so that the user's sitting position It is characterized by changing the way its own weight is applied in the posture of.

The cushion according to the present invention is characterized in that a mat member is provided in front of the rod-shaped member.

The cushion according to the present invention is characterized in that the air passage member is T-shaped.

In the cushion according to the present invention, air is injected into the first air bag and the second air bag, and a bulge is formed at a position corresponding to the instep and buttocks of the user. Then, the pressure applied from the instep and the buttocks due to its own weight is dispersed in the first air bag and the second air bag through the bulge, and the ischium and coccyx of the user can be decompressed. Therefore, it is possible to reduce the burden on the user's body when sitting.

In particular, when the user sits upright, he / she can sit around the instep along the bulge. Therefore, the pressure applied to the area around the instep due to its own weight is distributed to the first air bag and the second air bag through the bulge, and the feeling of pressure on the foot is reduced, so that the foot is numb without obstructing blood flow. Is reduced.

It is a plane schematic view of the cushion which concerns on 1st Embodiment of this invention. It is a side view of the cushion which concerns on 1st Embodiment of this invention. It is a figure which shows the use state (seiza) of the cushion which concerns on 1st Embodiment of this invention. It is a top view of the plan of the cushion which concerns on the 2nd Embodiment of this invention. It is a side view of the cushion which concerns on the 2nd Embodiment of this invention. It is a figure which shows the other use state (cross-legged) of the cushion of this invention. It is a figure which shows the other use state (sideways) of the cushion of this invention.

The cushion according to the present embodiment is used to reduce the burden on the user's body. Hereinafter, in the first embodiment and the second embodiment, an example in which the user is used in a sitting posture, and in other examples, an example in which the user is used in a cross-legged posture and a lying posture. Each will be explained.

[First Embodiment]
The cushion according to the present embodiment will be described with reference to FIGS. 1 to 3.
The front-back direction X, the up-down direction Y, and the left-right direction Z are defined with reference to the cushions of FIGS. 1 and 2.

As shown in FIGS. 1 and 2, the cushion 1 includes a cushion body 2 having a plurality of rod-shaped members (supporting members) 10, a bag body 3 provided below and behind the cushion body 2, and a cushion body 2. It also includes a cushion cover 4 in which the bag body 3 is housed, and a mesh sheet 5 provided below the cushion body 2 and inside the cushion cover 4.

[Cushion body 2]
The cushion body 2 is made of a cushioning material. The cushion main body 2 is connected to a first rod-shaped member 10A, a second rod-shaped member 10B having a volume smaller than that of the first rod-shaped member 10A, and a third rod-shaped member 10C having a volume smaller than that of the second rod-shaped member 10B. It is configured. Specifically, the third rod-shaped member 10C, the first rod-shaped member 10A, the second rod-shaped member 10B, the third rod-shaped member 10C, and the third rod-shaped member 10C are connected in this order from the rear to the front in the front-rear direction X. ing. The rear third rod-shaped member 10C and the first rod-shaped member 10A are arranged on the bag body 3.
Each rod-shaped member 10 is formed by encapsulating granular wool in a cover, and its cross section is circular or elliptical. The hardness and the shape of the cross section of the rod-shaped member 10 are appropriately adjusted depending on the amount of granular wool to be packed. This granular wool is made into granular wool using felt-prevented wool wadding so that the yarns do not get entangled with each other by chemical treatment, and contains air inside. The first rod-shaped member 10A, the second rod-shaped member 10B, and the third rod-shaped member 10C have elasticity because the granular wool, which is a special material, is contained therein.
The rod-shaped members 10 may be connected to each other and formed as one body, or may be formed as separate bodies.

[Bag body 3]
The bag body 3 is made of an elastic body, and expands to a predetermined size by injecting air from the outside (for example, a manual pump). The bag body 3 is connected to a first air bag 6 provided on the right side in the left-right direction Z, the first air bag 6 and a T-shaped tube connector (air passage member) 7, and is left in the left-right direction Z. It has a second air bag 8 provided on the side. The bag body 3 is attached to the mesh sheet 5 via a hook-and-loop fastener.
The first air bag 6 is arranged at a location corresponding to the vicinity of the instep A of the right foot when the user H sits upright, and the second air bag 8 is located at a location corresponding to the vicinity of the instep A of the left foot of the user H. It is arranged in (Fig. 3). The first air bag 6 and the second air bag 8 are sandwiched by the cushion body 2 (rod-shaped member 10) from above and the mesh sheet 5 from below. The shapes of the first air bag 6 and the second air bag 8 are appropriately designed to be square, rectangular, or the like according to the size of the cushion 1.
In addition, in this embodiment, the periphery of the instep means a portion including the instep and the tibia of the foot.

The tube connector 7 serves as a passage for air injected into the bag body 3 (first air bag 6 and second air bag 8). The tube connector 7 is made of, for example, an olefin resin such as polypropylene or borosilicate glass.
One end of the tube connector 7 projects to the outside of the cushion 1, and a manual pump (not shown) is connected to the tip thereof, for example. When the cushion 1 is used, air is injected into the first air bag 6 and the second air bag 8 through the tube connector 7 by a manual pump. The tip of the tube connector 7 is housed inside the cushion cover 4 when it is not connected to the manual pump.
Note that FIG. 2 shows a state in which air is not injected into the bag body 3 (hereinafter, also referred to as an unused state), and in the unused state, the upper surface of the cushion 1 is substantially flat.

An opening is formed behind the cushion cover 4, and the cushion body 2 and the bag 3 are housed inside the cushion cover 4 through the opening. After storage, the opening is closed with a fastener.
It is preferable that the mesh sheet 5 has substantially the same size as the cushion main body 2, has good breathability, and has appropriate elasticity. For the mesh sheet 5, for example, a wave mesh sheet (wave mesh fabric) or a three-dimensional structure mesh sheet can be used. The wave mesh sheet is, for example, a polyester fiber and exhibits a three-dimensional wave shape in which warp and weft are entwined.

Next, the usage state and the action and effect of the cushion 1 will be described.

Air is injected from the outside of the cushion 1 by a manual pump to inflate the first air bag 6 and the second air bag 8. Then, as shown in FIG. 3, the rear of the cushion main body 2, specifically, the first rod-shaped member 10A and the third rod-shaped member 10C swell upward in the vertical direction Y, and the bulging portion 9 is formed. The user H puts the instep A on the bulge 9 and sits upright.

When the instep A is placed on the bulge 9 and sits upright, the pressure applied to the periphery of the instep A and the ischial bone by its own weight is dispersed to the first air bag 6 and the second air bag 8 via the bulge 9. The feeling of pressure on the feet is reduced. When the feeling of pressure on the legs is reduced, blood flow is not obstructed compared to when sitting upright on a normal cushion. Therefore, it is possible to reduce or avoid numbness of the legs when sitting upright, and the burden on the body of the user H is reduced. In addition, the numbness of the legs can be reduced.

Further, in the cushion 1 according to the present embodiment, since the first rod-shaped member 10A having the largest volume is provided at a position facing the bag body 3, the height of the bulging portion 9 in the vertical direction Y is secured. Can be done. By ensuring the height of the bulge portion 9, the angle of the ankle of the user H can be maintained when the user H puts his / her foot on the bulge portion 9 and takes a sitting posture. By maintaining the angle of the ankle, it is possible to prevent the blood flow in the ankle from being obstructed and reduce the burden on the foot. Further, when the user H puts the instep A and the buttocks B on the bulge 9 and takes a sitting posture, the sitting posture of the user H becomes forward leaning, so that the sitting posture of the user H It is possible to change how the weight is applied in the posture (the part where the weight is applied), and the burden on the legs can be reduced.

In the cushion 1 according to the present embodiment, the tube connector 7 can be stored in the cushion cover 4 after injecting air. Then, the appearance of the cushion 1 is not significantly impaired, and the atmosphere of the cushion 1 is maintained. Further, since the cushion body 2, the bag body 3, and the mesh sheet 5 constituting the cushion 1 are lightweight, they are convenient to carry and easy to use.

In the cushion 1 according to the present embodiment, the degree of swelling of the bulging portion 9 (height of the bulging portion 9) can be adjusted by appropriately changing the amount of air injected into the first air bag 6 and the second air bag 8. Therefore, the degree of swelling can be adjusted according to the body shape and preference of the user H, and the user H can sit upright in the most comfortable and stable state.

In the cushion 1 according to the present embodiment, the first air bag 6 and the second air bag 8 are communicated with each other by the tube connector 7. Therefore, for example, when the user H moves to move his / her weight to the right side, pressure is applied to the first air bag 6, and the air inside the first air bag 6 is the second air via the tube connector 7. Move inside the bag 8. Then, the pressure applied to the right foot is dispersed, and the burden on the body of the user H is reduced even when the weight is transferred to the right side.

The mesh sheet 5 provided inside the lower surface of the cushion cover 4 of the cushion 1 according to the present embodiment serves as a cushioning material. By providing the mesh sheet 5, the cushion 1 can disperse the seat pressure and allow air to flow, which enhances the comfort, and the user H can comfortably take a sitting position.

In the cushion 1, members other than the bag body 3 and the tube connector 7 can be washed. Therefore, even if it gets dirty, it can be used many times by washing it.

[Second Embodiment]
The cushion 1A according to the present embodiment has a different configuration of the cushion main body 2 as compared with the cushion 1 of the first embodiment. Therefore, the same components as those of the cushion 1 are designated by the same reference numerals, the description thereof will be omitted, and the feature portions will be mainly described.

In the cushion 1A according to the present embodiment, as shown in FIGS. 4 and 5, the cushion main body 2 is composed of a plurality of rod-shaped members (support members) 20 and a mat member 21. The mat member 21 is provided in front of the rod-shaped member 20. The mat member 21 has a rectangular shape, and for this mat member 21, for example, a member packed with granular wool or a cushion made of urethane can be used.

On the other hand, five rod-shaped members 20 are provided adjacent to the front-rear direction X (from the rod-shaped member 20A to the rod-shaped member 20E) in the rear portion (at least the position corresponding to the periphery of the instep A) from the center of the cushion body 2. Has been done. The volume of the rod-shaped member 20B is larger than the volume of the other rod-shaped members 20A and the like, the amount of granular wool packed is large, and the weight is large.
In the cushion 1A, four rear rod-shaped members 20A to 20D are arranged on the bag body 3.
The rod-shaped members 20 may be connected to each other and formed as one body, or may be formed as separate bodies.

The cushion 1A according to the present embodiment reduces the feeling of pressure on the legs when sitting upright, can reduce or avoid numbness of the legs, and produces the following effects.

When pressure is applied, the rod-shaped member 20 of the cushion 1A according to the present embodiment deforms in shape along the shape of the instep A, so that the pressure from the foot applied to the cushion 1A can be efficiently dispersed.

Further, in the cushion 1A according to the present embodiment, since the cushion main body 2 is composed of the mat member 21 and the rod-shaped member 20, the cushion 1A can be made lighter than the cushion 1 and can be easily rolled up and stored. Further, since the cushion 1A is provided with the mat member 21 at the portion where the knee of the user H comes into contact when sitting upright, the cushioning property with respect to the knee portion is high.

<Other examples>
In the above embodiment, an example of reducing the burden on the body when sitting upright has been described, but the cushions 1 and 1A reduce the burden on the body of the user H even when sitting in a posture other than sitting upright. it can.

For example, as shown in FIG. 6, when the user H puts the buttock B on the bulge 9 and sits in a cross-legged posture, the pressure applied to the buttock B is distributed to the bag 3 via the bulge 9. be able to. Then, the pressure applied to the ischium and the coccyx can be reduced, and the burden applied to the body of the user H can be reduced.

Further, as shown in FIG. 7, when the user H lies down, the instep A and the buttocks B can be placed on the bulge 9 and can sit down. Then, the pressure applied to the instep A and the buttocks B can be dispersed to the bag 3 via the bulge 9. Therefore, by using the cushions 1, 1A, the sitting pressure applied to the body of the user H can be reduced.

Although the present embodiment has been described above, other than this, the configuration described in the above embodiment can be selected or changed as appropriate without departing from the gist of the present invention. .. In the present embodiment, the case of using in a sitting posture, cross-legged posture, and lying posture has been described, but other postures such as a long sitting posture and a standing knee posture can also be used.

In the present embodiment, an example in which the cushion body 2 is used upward and the mesh sheet 5 is used downward has been described, but it can also be used upside down, with the cushion body 2 facing downward and the mesh sheet 5 facing upward. The effect can be obtained even when used.

Further, in the present embodiment, an example in which the bag body 3 (first air bag 6, second air bag 8) is provided below the cushion body 2 is shown, but the bag body 3 is provided above the cushion body 2. You can also.

Further, the cross sections of the rod-shaped members 10 and 20 described in the second embodiment and the third embodiment may be triangular or square, and the number and size of the rod-shaped members 10 and 20 can be changed as appropriate. Further, in the present embodiment, an example of injecting air by using a manual pump has been described, but it is also possible to provide an air plug at the end of the tube connector 7 and inject air from the mouth. A balloon of a sphygmomanometer can be used as the manual pump.

1,1A Cushion 2 Cushion body 3 Bag body 4 Cushion cover 5 Mesh sheet 6 First air bag 7 Tube connector (air passage member)
8 Second air bag 9 Inflated part 10 Rod-shaped member (support member)
10A First rod-shaped member 10B Second rod-shaped member 10C Third rod-shaped member 20 Rod-shaped member (support member)
20A to 20E Rod-shaped member 21 Matte member A Instep B Buttocks H User X Front-back direction Y Vertical direction Z Left-right direction

Claims (5)

Cushion body including multiple rod-shaped members provided in parallel in the front-rear direction,
A bag body provided below the cushion body and capable of allowing air to flow in and out is provided.
The bag body has a first air bag and a second air bag connected to the first air bag by an air passage member.
By injecting the air into the first air bag and the second air bag, a bulge is formed at a position corresponding to the instep of the user's foot or the buttocks of the user.
A cushion that is characterized by that. A mesh sheet is provided below the cushion body.
The cushion according to claim 1. The rod-shaped member includes a first rod-shaped member, a second rod-shaped member having a volume smaller than that of the first rod-shaped member, and a third rod-shaped member having a volume smaller than that of the second rod-shaped member.
The first rod-shaped member, the second rod-shaped member, and the third rod-shaped member contain granular wool containing air inside, so that the first rod-shaped member, the second rod-shaped member, and the third rod-shaped member are contained. The third rod-shaped member has elasticity and
The second rod-shaped member is provided adjacent to the front of the first rod-shaped member, and the third rod-shaped member is provided adjacent to the front of the second rod-shaped member.
By providing at least the first rod-shaped member at a position facing the bag body, the height of the bulging portion is secured, the angle of the ankle of the user is maintained, and the sitting posture of the user is maintained. Is tilted forward, so that it is possible to change how the weight is applied in the sitting posture of the user.
The cushion according to claim 1 or 2, wherein the cushion is characterized in that. A mat member is provided in front of the rod-shaped member.
The cushion according to claim 1 or 2, wherein the cushion is characterized in that. The air passage member has a T shape.
The cushion according to any one of claims 1 to 4, wherein the cushion is characterized in that.

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