JPH1189679A - Cushion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it compact, and comfortably watch a baseball game by the cushioning action of fluid by injecting air on the spot by putting a cushion inside material in a space formed between an upper sheet and an intermediate sheet, and forming a fluid taking in and out space between the intermediate sheet and a lower sheet. SOLUTION: A cushion 1 is constituted by forming a thin rubber cylinder in a doughnut shape, and swells in a doughnut shape when air is injected and filled inside, and can be easily folded up since it becomes flat when the air is let out. A first space 3 and a second space 4 are formed inside an outer cylinder 2 of the cushion 1, and the respective ones form a doughnut-shaped space in the circumferential direction. The spaces 3 and 4 are separately formed in a communicating shape by a porous sheet-like partition wall 5. The first space 3 is a space in which air from an injection port 6 flows and which reserves this air, and becomes one of cushions. The second space 4 is a space which houses a small chip-shaped elastic material 8 and to/in which air from the first space 3 is introduced/filled through pores.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables easy installation on seats of baseball stadiums and the like, even if the chair is made of plastic or the like, so that it is easy to watch without fatigue and can be widely used for other purposes. Regarding cushions.

[0002]

2. Description of the Related Art For example, a baseball stadium is provided with a seat for watching a game, but since this sheet is made of plastic, it generally has a hard feel. In the case of baseball, such as when playing for a long period of time, it was quite tired.

[0003]

In order to deal with such a problem, it is only necessary to carry a simple seat cushion.
It is quite difficult to carry because the crowd is crowded.

The present invention has been made to solve the above-mentioned problems, and can be carried in a compact form, and can be used if air or the like is injected on the spot. An object of the present invention is to provide a cushion that is easy to use.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is used for seating or the like which has a fluid inlet which can be opened and closed and has an internal space for receiving a fluid. The internal space is partitioned into a plurality of parts so as to communicate with each other, and as the plurality of spaces, a space in which an elastic material is placed and the fluid is also placed, and the fluid is guided into the same space. It is characterized in that there is a space inside the self that holds the fluid.

According to a second aspect of the present invention, in the first aspect, the whole is donut-shaped, and its cross section orthogonal to the circumferential direction is divided into two upper and lower sections so as to be communicated with each other, and one of the spaces is provided. While the space is a space in which the elastic material is put, the other space is a space for guiding and retaining the fluid.

[0007] The invention described in claim 3 is claim 1 or 2.
, A projection is formed on the outer surface.

According to a fourth aspect of the present invention, in any one of the first to third aspects, a plurality of components are connected to each other or can be connected to each other.

According to a fifth aspect of the present invention, in the fourth aspect, the plurality of connecting portions are fluid communication passages.

According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the fluid is air.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. 1 and 2 show a preferred embodiment of the present invention. FIG. 1 is a plan view of the cushion 1, FIG. 2 shows both the internal structure and the side appearance of the cushion 1, and FIG. It is a side view which shows a use state.

The cushion 1 is made of a thin rubber cylinder having a donut shape. The cushion 1 expands into a donut shape when air, which is a fluid, is injected and filled therein. When the air is removed, the cushion 1 is flattened and folded. It becomes free. still,
The outer cylinder 2 may be formed to have an uneven shape in an expanded state.

A first space 3 and a second space 4 are formed inside the outer cylinder 2 of the cushion 1, each of which forms a donut-shaped space in the circumferential direction. The upper and lower spaces 3 and 4 are separated and formed by a porous sheet-shaped partition wall 5 in a communicating manner, and an air (fluid) inlet 6 is formed on an outer surface corresponding to the lower first space 3. . The inlet 6 has a stopper 7
Are detachably fitted.

The stopper plug 7 is fitted into the inlet 6, and when the lip 7a is pulled out with a certain force or more, the stopper plug 7 comes out of the inlet 6 and the inlet 6 is opened. The air is injected by an air supply means, for example, an air pump, through the opened inlet 6. The injection port 6 may be of a type that maintains a closed state even when the stopper plug 7 is pulled out, and that is opened only by picking the injection port 6. The inlet 6 may be provided with a simple pump.

The outer cylinder 2 and the like are made of a soft elastic material such as nylon, polyester, or cloth in addition to rubber.
Of course, other materials may be used. Further, on the surface of the outer cylinder 2, for example, a team mark or a mascot mark may be attached.

The first space 3 is a space for receiving air from the inlet 6 and for retaining the air, and serves as one of the cushions. The second space 4 is a space in which small chip-shaped elastic members 8 are put and air is introduced from the first space 3 through the pores to be filled.
For example, a sponge tip or a rubber tip is used for the elastic members 8. The chip in this case includes a linear piece.

On the upper surface of the outer cylinder 2, a large number of separate projections 10 are arranged so as to form an annular shape.
The protrusions 10 may be formed integrally with the outer cylinder 2 as described above. The protrusions 10 may be attached to the bottom surface of the cushion 1, and the arrangement is not limited to the illustrated one. The cushion 1 may protrude entirely. The protrusions 10 are not only effective for promoting health but also for improving the degree of fixation of the cushion 1 to the seat 11.

The cushion 1 of the embodiment may be formed one or two times smaller than the seat 11 of FIG. This is because there is a preference for large, small, or intermediate sizes depending on the person sitting.

Further, a rubber mat is separately laid on the seat 11, a sheet fastener is attached to the mat, and a sheet fastener is attached to the cushion 1 side. May be fixed stably. Furthermore, the cushion 1 may be brought by a spectator, but it is also possible to lease the cushion 1..., For example, to systematize such that a fixed amount is returned when the cushion 1 is returned.

The cushion 1 has a hole in the center thereof, but a sheet may be stretched to close the hole. Here, the mark as described above may be large. In this case, it can be used as a substitute for an umbrella or a parasol. Therefore, a means (a string or the like) for fixing to the head may be provided on the back surface of the sheet. The above can be applied to the following embodiments as they are.

Another embodiment will be described with reference to FIGS. In the embodiment shown in FIG. 3, the cushion 3 is small as a whole, so that the hips of the occupant do not fall. In particular, the central hole is quite small. It should be noted that a net-like material can be stretched in this hole, or a sheet can be separately attached, or even if there is no hole and its corresponding portion is concave, or if there is no hole at all. Good. These can be applied to the following embodiments as they are.

Further, as can be said in the other embodiments, as shown by phantom lines in FIG. 3, the cushions 13 are connected to a plurality of members such as two members by a planar fastener or other connecting means. May be enabled. In this case, the cushions 13 may be connected by a communication tube so that the cushions 13 can be simultaneously injected into a plurality of cushions 13 from one injection port. In addition, 3 in FIG.
In the case of the one-piece type, the cushions 13 may be used by one person so that the cushions 13 correspond to the seat portion and the backrest portion of the seat.

In the embodiment shown in FIG. 4, the central hole 18 of the cushion 17 has a horizontally long elliptical shape so as to match the shape of the hip. An oval shape may be used.

The cushion 20 of the embodiment shown in FIG.
The inside of the hole is reinforced by the joint 21. Also in this case, matching is easy depending on the shape of the hip.

The cushion 23 of the embodiment shown in FIG.
The two seats are integrated into a single unit, and by changing the size of the entire seat to be large or small, one person can sit on one cushion 23 or two people can sit.

The cushion 25 of the embodiment shown in FIG.
It has a gourd shape. The cushion 27 of the embodiment shown in FIG. 8 has a triangular ring as a whole, and in the case of the cushion 27, a plurality of cushions 27 can be provided in series, and the holes can be changed from triangle to round. In this embodiment, the sides of the triangle are connected to each other, but the vertexes may be connected to each other. Also, make the whole cushion a diamond shape,
While this can be folded in two, it may be made into a diamond shape when inflated as shown in FIG.

The cushion 29 of the embodiment shown in FIG.
The whole is a quadrilateral. Although this hole is round, it may be quadrilateral, and a recess 30 may be formed. Further, for continuous connection, side edges are used or vertices are used.

The cushion 32 of the embodiment shown in FIG.
Is a polygon and may be a hexagon or the like, but in this embodiment, it is an octagon. Joint 3
3 can be connected continuously.

The embodiment shown in FIGS. 11 to 15 shows another example of the cross-sectional shape of the cushion.
In the embodiment shown in FIG. 11, the inside of the outer cylinder 35 is formed by a first space 36 between the upper and lower sides and a second space 37 above and below the outer space 35, and these are partitioned by upper and lower two-layer porous partition walls 38, 38. It is. Reference numerals 39... Are elastic members placed in the second space 37. The projections 40 are arranged above and below the cushion. It is easy to inject air when the inlet is made to correspond to the first space 36, but it is free to make it correspond to the second space 37.

In the embodiment shown in FIG. 12, projections 44 are formed integrally with the outer cylinder 43, and the outer cylinder 43 is integrally provided with irregularities. The embodiment shown in FIG.
In order to protect No. 6, a protective sheet 50 is attached to the same cylindrical surface. As shown by the imaginary line, the spaces 48 and 49 may be formed inside and outside with the partition wall 47 being oriented vertically.

In the embodiment shown in FIG. 14, the outer cylinder 51 has an elliptical shape. It may be a vertically long ellipse like a virtual line. In the embodiment shown in FIG. 15, the outer cylinder 53 has a horizontally elongated cocoon-shaped cross section. The embodiment shown in FIGS. 11 to 15 can be directly applied to other embodiments.

FIG. 16 shows an embodiment in which the cushion 55 is folded in two so as to extend over the seat portion 56 and the backrest portion 57 of the seat 55. It should be noted that, in addition to the illustration, three or more foldable types may be used. Further, if a magnet is provided on the side that comes to the backrest portion 57 (actually, it is not specified which of the seat portions 56 corresponds to the cushion portion 58), health can be improved.

FIG. 17 shows an outer cylinder 60 having irregularities 61 formed on the surface thereof. The unevenness 61 may be separately provided so as to surround the cushion. Note that, as in the embodiment shown in FIG. 18, it is not possible to connect the balloon 65 to the injection port 64 of the cushion 63 and compress the cushion 63 to inflate the air inside by inserting the balloon 65. Be free.

FIG. 19 shows a structure in which a plurality of cushions 67 such as hexagons are connected in a ring shape.
Reference numeral 8 denotes an inlet, and reference numeral 69 denotes a connecting portion. The connecting portion 69 may be a communication path. In this case, a connection method that can be inserted and removed as shown in the drawing may be used. The cushion 67 of this embodiment is effective for outdoor use.

The embodiment shown in FIG. 20 can be used not only as a cushion but also as a hat (also used as an umbrella). A flexible and deformable sheet 72 is provided at the center of the outer cylinder 71 so that the hole at the center of the outer cylinder 71 fits into the head, and the sheet 72 becomes a cover. As shown in FIG. 22, a plurality of outer cylinders 74 may be formed in a ring shape, and these may be brought together inside and outside to form a single surface, and a sheet 75 may be attached thereto to form a cushion / cap. It should be noted that a sheet for avoiding the sun may be provided on the upper side of the outer cylinders 71 and 74. Further, water may be put in the outer cylinders 71 and 74.

The cushion may be used as a mat for preventing bedsores. In this case, a magnet or a deodorizing means may be provided. The cushion can be used as a floating wheel or as a vehicle seat cushion. Further, a shape memory plastic or an alloy may be provided as the inner space of the outer cylinder or the inner layer of the outer cylinder sheet itself, so that the cushion may be expanded.

[0037]

Since the present invention is constructed as described above, it can be carried in a compact form and can be used by injecting air or the like on the spot. It is possible to provide a cushion that is easy to use.

[Brief description of the drawings]

FIG. 1 is a plan view of a cushion according to an embodiment of the present invention.

FIG. 2 is a side view showing the internal structure and the side appearance of the cushion together with the cushion in use.

FIG. 3 is a plan view showing an embodiment of a cushion adapted to a hip.

FIG. 4 is a plan view showing another embodiment of a cushion adapted to a hip.

FIG. 5 is a plan view showing an embodiment of a cushion with a joint.

FIG. 6 is a plan view showing an embodiment in which one cushion is constituted by a pair of rings.

FIG. 7 is a plan view showing an embodiment of a gourd-shaped cushion.

FIG. 8 is a plan view showing an embodiment of a cushion having a triangular ring shape.

FIG. 9 is a plan view showing an embodiment of a quadrilateral cushion.

FIG. 10 is a plan view showing an embodiment of a polygonal cushion.

FIG. 11 is a cross-sectional view showing another example of the cross-sectional structure inside the cushion.

FIG. 12 is a cross-sectional view showing another example of the cross-sectional structure inside the cushion.

FIG. 13 is a sectional view showing an example in which a protective sheet is attached to a cushion.

FIG. 14 is a cross-sectional view showing an embodiment in which the outer cylinder has an elliptical shape.

FIG. 15 is a transverse sectional view showing another sectional shape of the outer cylinder.

FIG. 16 is a side view of a cushion that can be installed on both the seat portion and the backrest portion of the seat.

FIG. 17 is a front view of a cushion having irregularities.

FIG. 18 is an explanatory view showing an example in which a balloon is inflated by air in a cushion.

FIG. 19 is a plan view showing an embodiment in which a plurality of cushions can be arranged in a ring.

FIG. 20 is a longitudinal sectional view showing a cushion that is also used as a hat.

FIG. 21 is a longitudinal sectional view showing another example of a cushion that also serves as a hat.

[Explanation of symbols]

1,13,17,20,23,25,27,32,5
8, 63 ... cushion 2, 35, 43, 46, 51, 60, 71, 74 ... outer cylinder 3, 4, 36, 37, 48, 49 ... space 5, 38 ...
Partition wall 6, 64, 68 ... Injection port 8, 39 ... Elastic material.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 24, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Cushion

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables easy installation on seats of baseball stadiums and the like, even if the chair is made of plastic or the like, so that it is easy to watch without fatigue and can be widely used for other purposes. Regarding cushions.

[0002]

2. Description of the Related Art For example, a baseball stadium is provided with a seat for watching a game, but since this sheet is made of plastic, it generally has a hard feel. In the case of baseball, such as when playing for a long period of time, it was quite tired.

[0003]

In order to deal with such a problem, it is only necessary to carry a simple seat cushion.
It is quite difficult to carry because the crowd is crowded.

The present invention has been made to solve the above-mentioned problems, and can be carried in a compact form, and can be used if air or the like is injected on the spot. An object of the present invention is to provide a cushion that is easy to use.

[0005]

According to a first aspect of the present invention, there is provided a fluid inlet which can be opened and closed.
And the inside is a space for fluid
A cushion used for seating, etc.
At least the upper sheet, the middle sheet, and the
And the lower soft sheet is polymerized.
The outer peripheral portions of the upper sheet are fixed to each other in a closed state.
The cushion formed in the space formed between
Material is inserted, and the middle sheet and lower sheet
In the meantime, fluid can enter and exit through the fluid inlet.
Characterized by having a space formed therein .

According to a second aspect of the present invention, in the first aspect, the middle sheet and the lower sheet are alternately provided at a central portion thereof.
Is fixed .

[0007] The invention described in claim 3 is claim 1 or 2.
, The space formed between the middle sheet and the lower sheet
Are fused in the upper and lower spaces to
Has been cut.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. 1 and FIG. 2 shows a preferred embodiment of the present invention, FIG. 1 is a plan view of the cushion 1, 2 same even as the show together the internal structure and a side appearance of the cushion 1 Use condition of cushion 1
FIG.

[0009] The cushion 1 is made of a thin-walled rubber cylinder.
It is made into a nut shape and air is injected into the inside.
When filled and filled, it swells into a donut shape, bleeding air
When you leave, it becomes flat and foldable. still,
The outer cylinder 2 is made to have an uneven shape in the expanded state.
You may.

A first empty space is provided inside the outer cylinder 2 of the cushion 1.
A space 3 and a second space 4 are formed, each of which is circumferentially
Form a donut-shaped space.

The upper and lower spaces 3 and 4 are divided into porous sheet-like partitions.
Separated and formed in a communication manner by the wall 5 and in the lower first space 3
An air (fluid) inlet 6 is formed on the corresponding outer surface.
Have been.

A stopper 7 is detachably attached to the inlet 6.
It is inserted.

[0013] The stopper plug 7 is fitted into the injection eye 6.
And pull out the lip 7a with a certain force or more.
Then, the stopper 7 is removed from the inlet 6 and the inlet 6 is opened.
Air supply through this open inlet 6
Air is injected by means, for example, an air pump
You.

The inlet 6 is closed even when the stopper 7 is removed.
It is like opening for the first time by keeping the state and picking the inlet 6
A method may be used. The inlet 6 is a simple pump
It may be attached.

The outer cylinder 2 and the like are made of a soft elastic material such as nylon, polyester, or cloth in addition to rubber.
Of course, other materials may be used. Further, on the surface of the outer cylinder 2, for example, a team mark or a mascot mark may be attached.

The first space 3 is a space for receiving air from the inlet 6 and for retaining the air, and serves as one of the cushions. The second space 4 is a space in which small chip-shaped elastic members 8 are put and air is introduced from the first space 3 through the pores to be filled.
For example, a sponge tip or a rubber tip is used for the elastic members 8. The chip in this case includes a linear piece.

On the upper surface of the outer cylinder 2, a large number of separate projections 10 are arranged so as to form an annular shape.
The protrusions 10 may be formed integrally with the outer cylinder 2 as described above. The protrusions 10 may be attached to the bottom surface of the cushion 1, and the arrangement is not limited to the illustrated one. The cushion 1 may protrude entirely. The protrusions 10 are not only effective for promoting health but also for improving the degree of fixation of the cushion 1 to the seat 11.

The cushion 1 of the embodiment may be formed one or two times smaller than the seat 11 of FIG. This is because there is a preference for large, small, or intermediate sizes depending on the person sitting.

Further, a rubber mat is separately laid on the seat 11, a sheet fastener is attached to the mat, and a sheet fastener is attached to the cushion 1 side. May be fixed stably. Furthermore, the cushion 1 may be brought by a spectator, but it is also possible to lease the cushion 1..., For example, to systematize such that a fixed amount is returned when the cushion 1 is returned.

The cushion 1 has a hole in the center thereof, but a sheet may be stretched to close the hole. Here, the mark as described above may be large. In this case, it can be used as a substitute for an umbrella or a parasol. Therefore, a means (a string or the like) for fixing to the head may be provided on the back surface of the sheet. The above can be applied to the following embodiments as they are.

Another embodiment will be described with reference to FIGS. In the embodiment shown in FIG. 3, the cushion 3 is small as a whole, so that the hips of the occupant do not fall. In particular, the central hole is quite small. It should be noted that a net-like material can be stretched in this hole, or a sheet can be separately attached, or even if there is no hole and its corresponding portion is concave, or if there is no hole at all. Good. These can be applied to the following embodiments as they are.

Further, as can be said in the other embodiments, as shown by phantom lines in FIG. 3, the cushions 13 are connected to a plurality of members such as two members by a planar fastener or other connecting means. May be enabled. In this case, the cushions 13 may be connected by a communication tube so that the cushions 13 can be simultaneously injected into a plurality of cushions 13 from one injection port. In addition, 3 in FIG.
In the case of the one-piece type, the cushions 13 may be used by one person so that the cushions 13 correspond to the seat portion and the backrest portion of the seat.

In the embodiment shown in FIG. 4, the central hole 18 of the cushion 17 has a horizontally long elliptical shape so as to match the shape of the hip. An oval shape may be used.

The cushion 20 of the embodiment shown in FIG.
The inside of the hole is reinforced by the joint 21. Also in this case, matching is easy depending on the shape of the hip.

The cushion 23 of the embodiment shown in FIG.
The two seats are integrated into a single unit, and by changing the size of the entire seat to be large or small, one person can sit on one cushion 23 or two people can sit.

The cushion 25 of the embodiment shown in FIG.
It has a gourd shape. The cushion 27 of the embodiment shown in FIG. 8 has a triangular ring as a whole, and in the case of the cushion 27, a plurality of cushions 27 can be provided in series, and the holes can be changed from triangle to round. In this embodiment, the sides of the triangle are connected to each other, but the vertexes may be connected to each other. Also, make the whole cushion a diamond shape,
While this can be folded in two, it may be made into a diamond shape when inflated as shown in FIG.

The cushion 29 of the embodiment shown in FIG.
The whole is a quadrilateral. Although this hole is round, it may be quadrilateral, and a recess 30 may be formed. Further, for continuous connection, side edges are used or vertices are used.

The cushion 32 of the embodiment shown in FIG.
Is a polygon and may be a hexagon or the like, but in this embodiment, it is an octagon. Joint 3
3 can be connected continuously.

The embodiment shown in FIGS. 11 to 15 shows another example of the cross-sectional shape of the cushion.
In the embodiment shown in FIG. 11, the inside of the outer cylinder 35 is formed by a first space 36 between the upper and lower sides and a second space 37 above and below the outer space 35, and these are partitioned by upper and lower two-layer porous partition walls 38, 38. It is. Reference numerals 39... Are elastic members placed in the second space 37. The projections 40 are arranged above and below the cushion. It is easy to inject air when the injection eye corresponds to the first space 36, but it is free to make it correspond to the second space 37.

In the embodiment shown in FIG. 12, projections 44 are formed integrally with the outer cylinder 43, and the outer cylinder 43 is integrally provided with irregularities. The embodiment shown in FIG.
In order to protect No. 6, a protective sheet 50 is attached to the same cylindrical surface. As shown by the imaginary line, the spaces 48 and 49 may be formed inside and outside with the partition wall 47 being oriented vertically.

In the embodiment shown in FIG. 14, the outer cylinder 51 has an elliptical shape. It may be a vertically long ellipse like a virtual line. In the embodiment shown in FIG. 15, the outer cylinder 53 has a horizontally elongated cocoon-shaped cross section. The embodiment shown in FIGS. 11 to 15 can be directly applied to other embodiments.

FIG. 16 shows an embodiment in which the cushion 55 is folded in two so as to extend over the seat portion 56 and the backrest portion 57 of the seat 55. It should be noted that, in addition to the illustration, three or more foldable types may be used. Further, if a magnet is provided on the side that comes to the backrest portion 57 (actually, it is not specified which of the seat portions 56 corresponds to the cushion portion 58), health can be improved.

FIG. 17 shows an outer cylinder 60 having irregularities 61 formed on the surface thereof. The unevenness 61 may be separately provided so as to surround the cushion. Note that, as in the embodiment shown in FIG. 18, it is not possible to connect the balloon 65 to the injection port 64 of the cushion 63 and compress the cushion 63 to inflate the air inside by inserting the balloon 65. Be free.

FIG. 19 shows a structure in which a plurality of cushions 67 such as hexagons are connected in a ring shape.
Reference numeral 8 denotes an inlet, and reference numeral 69 denotes a connecting portion. The connecting portion 69 may be formed as a communication path. The cushion 67 of this embodiment is effective for outdoor use.

The embodiment shown in FIG. 20 can be used not only as a cushion but also as a hat (also used as an umbrella). A flexible and deformable sheet 72 is provided at the center of the outer cylinder 71 so that the hole at the center of the outer cylinder 71 fits into the head, and the sheet 72 becomes a cover. As shown in FIG. 22, a plurality of outer cylinders 74 may be formed in a ring shape, and these may be brought together inside and outside to form a single surface, and a sheet 75 may be attached thereto to form a cushion / cap. It should be noted that a sheet for avoiding the sun may be provided on the upper side of the outer cylinders 71 and 74. Further, water may be put in the outer cylinders 71 and 74.

The cushion may be used as a mat for preventing bedsores. In this case, a magnet or a deodorizing means may be provided. The cushion can be used as a floating wheel or as a vehicle seat cushion. Further, a shape memory plastic or an alloy may be provided as the inner space of the outer cylinder or the inner layer of the outer cylinder sheet itself, so that the cushion may be expanded.

FIGS. 22 to 25 show another preferred embodiment.
State . FIG. 22 seats cushion 100
FIG. 23 is a cross-sectional view taken along line AA of FIG. 22,
24 is a bottom view, and FIG. 25 is an exploded view of the cushion 100.
Are respectively shown.

First, a description will be given with reference to an exploded view of FIG.
101 is the upper sheet, 102 is the middle sheet, 103 is the lower sheet
The sheets 101, 10 are shown respectively.
2, 103 is made of a soft resin sheet such as vinyl.
For example, the upper sheet 101 is a transparent sheet, a middle sheet
And the lower sheet 103 are colored red or the like.
Seats, these are all square and in the baseball field seats
It is made the same size that fits. The shape
Is shaped as shown in FIGS. 1 to 10 and FIG.
Is also good.

The middle sheet 102 and the lower sheet 103 are welded up and down such that the small square line in the plane coincides with the fusion line m. With the cushion inner member 104 interposed between the upper sheet 101 and the middle sheet 102, three upper and lower sheets 101, 102, 1
03 are superimposed and their outer peripheral edges are fused at a fusion line m. Of course, the outermost peripheral portion may be fused. It is appropriate that the cushion inner material is made of urethane or the like and has some surface shape and is flexible in itself. The cushion inner member 104 has a square or round through hole 104a in the center of the plane .

FIGS. 23 and 24 show the lower sheet 103.
Is mounted. And the same fluid
By opening the cap of the inlet 105 and blowing in the air
23, the middle sheet 102 and the lower sheet 103
The space 106 formed therebetween is made to expand flatly.
You.

Normally, air is evacuated through the fluid inlet 105.
Can be folded and carried around
For example, before placing on a baseball field sheet, fluid injection
As shown in FIG. 23, the air is filled through the port 105.
It swells and is ready for use.

The lower sheet 103 should face the sheet.
And set the cushion 100, and the viewer sits down
Then, the air in the space 106 and the cushion inner material 104
Acts together to take the hips softly. And inside
The central part between the sheet 102 and the lower sheet 103 is concave
In addition, the through hole 10 is also provided in the center of the cushion inner material 104.
4a is formed so that the hip is fixed when sitting down
Easy to wear.

The middle sheet 102 and the lower sheet 103
Are triangles, as in the embodiment shown in FIG.
Can be separated along the fusion line m that forms
You. In this case, the mutual space of the triangles
It is designed to communicate with each other.

[0044]

Since the present invention is constructed as described above, it can be carried in a compact form and can be used by injecting air or the like on the spot. It is possible to provide a cushion that is easy to use.

[Brief description of the drawings]

FIG. 1 is a plan view of a cushion according to an embodiment of the present invention.

FIG. 2 is a side view showing the internal structure and the side appearance of the cushion together with the cushion in use.

FIG. 3 is a plan view showing an embodiment of a cushion adapted to a hip.

FIG. 4 is a plan view showing another embodiment of a cushion adapted to a hip.

FIG. 5 is a plan view showing an embodiment of a cushion with a joint.

FIG. 6 is a plan view showing an embodiment in which one cushion is constituted by a pair of rings.

FIG. 7 is a plan view showing an embodiment of a gourd-shaped cushion.

FIG. 8 is a plan view showing an embodiment of a cushion having a triangular ring shape.

FIG. 9 is a plan view showing an embodiment of a quadrilateral cushion.

FIG. 10 is a plan view showing an embodiment of a polygonal cushion.

FIG. 11 is a cross-sectional view showing another example of the cross-sectional structure inside the cushion.

FIG. 12 is a cross-sectional view showing another example of the cross-sectional structure inside the cushion.

FIG. 13 is a sectional view showing an example in which a protective sheet is attached to a cushion.

FIG. 14 is a cross-sectional view showing an embodiment in which the outer cylinder has an elliptical shape.

FIG. 15 is a transverse sectional view showing another sectional shape of the outer cylinder.

FIG. 16 is a side view of a cushion that can be installed on both the seat portion and the backrest portion of the seat.

FIG. 17 is a front view of a cushion having irregularities.

FIG. 18 is an explanatory view showing an example in which a balloon is inflated by air in a cushion.

FIG. 19 is a plan view showing an embodiment in which a plurality of cushions can be arranged in a ring.

FIG. 20 is a longitudinal sectional view showing a cushion that is also used as a hat.

FIG. 21 is a longitudinal sectional view showing another example of a cushion that also serves as a hat.

FIG. 22 is a top view of a cushion showing another preferred embodiment;
FIG .

FIG. 23 is a sectional view taken along line AA of FIG. 22 ;

FIG. 24 is a bottom view of the cushion.

FIG. 25 is an exploded perspective view of the cushion.

FIG. 26 is a bottom view showing another cushion.

[Description of Signs] 1,13,17,20,23,25,27,32,5
8 , 63 , 100 ... cushions 2 , 35 , 43 , 4
6, 51, 60, 71, 74 ... outer cylinder 3, 4.36, 3
7.48, 49 ... space 5, 38 ... partition wall 6, 64,
68: injection port 8, 39: elastic material.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Added

[Correction contents]

FIG.

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Added

[Correction contents]

FIG. 23

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Added

[Correction contents]

FIG. 24

[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] Fig. 25

[Correction method] Added

[Correction contents]

FIG. 25

[Procedure amendment 6]

[Document name to be amended] Drawing

[Correction target item name] FIG. 26

[Correction method] Added

[Correction contents]

FIG. 26

Claims (6)

[Claims] 1. A cushion provided with a fluid inlet which can be opened and closed and used for seating or the like in which the inside is a space for containing a fluid, wherein the interior space is divided into a plurality of portions so as to communicate with each other. The plurality of spaces are characterized by a space in which an elastic material is put and the fluid is put in, and a space in which the fluid is guided in the space and which holds the fluid inside itself. And cushion. 2. The device according to claim 1, wherein the whole is donut-shaped, and its cross section orthogonal to the circumferential direction is partitioned into two upper and lower sections so as to communicate with each other, and an elastic material is placed in one of the spaces. The cushion is a space that can be used as a space while the other space is a space for guiding and retaining fluid. 3. The cushion according to claim 1, wherein a projection is formed on an outer surface. 4. The cushion according to claim 1, wherein a plurality of objects are connected to each other or can be connected to each other. 5. The cushion according to claim 4, wherein the plurality of connection portions are fluid communication passages. 6. The cushion according to claim 1, wherein the fluid is air.