JP2577471Y2 - Vehicle seat air cushion - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cushion for a vehicle seat, and more particularly, to a seat, a backrest,
The present invention relates to an air cushion for a vehicle seat disposed inside a headrest or the like.

[0002]

2. Description of the Related Art Conventionally, various types of air cushions have been devised as seats, backrests, headrests and the like in vehicle seats of passenger cars, buses, ships, airplanes and the like. In some of them, a synthetic resin sheet formed in a bag shape is used as an air chamber, which is filled with air to inflate the air chamber. Such an air cushion can reliably seal the air chamber by means such as an adhesive made of synthetic resin or welding, has high reliability without air leakage, and can be manufactured at low cost. It is. However, if the air chamber is formed of a synthetic resin sheet, the elasticity of the synthetic resin sheet itself is not sufficient, and the air filled in the air chamber cannot be reliably discharged using this elasticity. For this reason, the synthetic resin sheet must be pressed down by the user's hand or by the weight, which is extremely troublesome.

Therefore, as shown in FIG. 15, a rubber plate having excellent elasticity, that is, a resilient force, is adhered to a bottom plate made of an aluminum plate or the like, or two rubber plates are laminated and adhered, so that the bottom plate and the rubber plate are joined together. There is an air cushion in which an air chamber is formed by two rubber plates. Such an air cushion, when discharging the air filled in the air chamber, forcibly discharges the air due to the excellent restoring force of the rubber, and is simple and reliable regardless of the work of the user. The air in the air chamber can be discharged. In addition, the elasticity of the rubber plate allows the shape of the air chamber to freely change according to the physique of the person sitting on the vehicle seat, or to give a comfortable elasticity to the person sitting on the vehicle seat, such as a sightseeing bus or airplane. It is suitable as an air cushion for a vehicle seat used for a long time.

[0004]

However, in the conventional air cushion as described above, since the rubber plate and the bottom plate or the rubber plates are bonded to each other with an adhesive, the air cushion is firmly and securely provided. Can not be adhered to, the adhesive part peels off due to the pressure of air, peeling or cracking occurs in the adhesive part due to deterioration of the adhesive due to long-term use,
There is a problem that air in the air chamber leaks.

Further, as shown in FIG. 16, a frame member and a bottom plate provided on the upper surface of the rubber plate are fixed to each other with rivets or the like, and the rubber plate is sandwiched between the bottom plate and the frame member to form a rubber plate and a bottom plate. In some cases, the air chamber is tightly adhered and the air chamber is sealed. However, in such an air cushion, although the rubber plate and the bottom plate can be brought into close contact with each other without using an adhesive, air leaks from the rivet portion or the bottom plate or the frame material due to long-term use. There is a problem that a gap is formed between the rubber plate and the bottom plate due to warpage or the like and air leaks. Furthermore, since a rivet setting process is required, there is a problem that a complicated process is required in manufacturing.

The present invention has been made in view of such a situation, and an object thereof is to reliably and firmly seal an air chamber formed by a rubber plate. The air cushion of the vehicle seat, which has excellent durability without air leakage and can fully utilize the advantages of the air chamber formed by the rubber plate,
It is to be provided by a simple structure.

[0007]

Means taken to solve the above problems by means of the present invention will be described with reference to the reference numerals used in the drawings. First, the invention of claim 1 is described as "Vehicle Air cushion 1 of vehicle seat 200 disposed inside seat 220, backrest 210, headrest, etc. of seat 200
00, a bottom plate 10, a rubber plate 20 having an outer shape smaller than the bottom plate 10 and disposed on the bottom plate 10, and a synthetic resin plate having an outer shape larger than the rubber plate 20. And a frame member 30 having an opening 31 for exposing a part of the inside thereof. The outer edge of the frame member 30 is extended from the outer edge of the rubber plate 20 and the rubber plate 20. The air cushion 1 of the vehicle seat 200, wherein an air chamber 40 is formed between the bottom plate 10 and the rubber plate 20 by being adhered to the outer edge of the bottom plate 10.
00 ”.

The invention of claim 2 is based on the idea that “the air cushion 10 of the vehicle seat 200 is disposed inside the seat 220, the backrest 210, the headrest, etc. of the vehicle seat 200.
0, a bottom plate 10, a middle plate 11 having an outer shape smaller than the bottom plate 10 and disposed on the bottom plate 10, and both side edges of the middle plate 11 disposed on the middle plate 11 opposite to the middle plate 11. A rubber plate 20 that forms an open portion 22 at both ends of the intermediate plate 11 by folding the open portion 22
A plate member 32 made of a synthetic resin disposed thereon, wherein the middle plate 11 and a folded portion of the rubber plate 20 are bonded to the bottom plate 10, and the plate member 32 is attached to the open portion 22 of the rubber plate 20. And the bottom plate 10 extending from the rubber plate 20
A vehicle seat 20 characterized in that an air chamber 40 is formed between the middle plate 11 and the rubber plate 20 by being bonded to an outer edge portion of the vehicle seat 20.
0 air cushion 100 ".

[0009]

The operation of the air cushion 100 of the vehicle seat 200 according to the present invention will now be described.

First, a vehicle seat 2 according to the invention of claim 1
The air cushion 100 of FIG.
Since the air chamber 40 is formed between them, the advantage of the air chamber 40 formed by the rubber plate 20, which is a material having excellent elasticity, is fully utilized.

The rubber plate 20 arranged on the bottom plate 10 has an outer shape smaller than that of the bottom plate 10, and the frame member 30 arranged on the rubber plate 20 has an outer shape that is smaller than that of the rubber plate 20. It is larger. Therefore, the bottom plate 10 and the frame member 30 extend from the rubber plate 20. Here, the frame member 30 is formed of a synthetic resin plate, and its outer edge is adhered to the outer edge of the rubber plate 20, and the portion of the outer edge extending from the rubber plate 20 is similarly formed on the rubber plate 20.
Is adhered to the outer edge of the bottom plate 10 extending from the bottom plate. For this reason, the rubber plate 20 and the bottom plate 10 are firmly integrated by the frame material 30 at the outer end of the rubber plate 20, and the air chamber 40 formed between the rubber plate 20 and the bottom plate 10 is securely formed. Will be sealed.

On the other hand, the frame member 30 has an opening 31 for exposing a part of the inside of the rubber plate 20. Therefore, when the air chamber 40 is filled with air, the portion of the rubber plate 20 exposed from the opening 31 expands due to the pressure of the air,
A cushion having excellent elasticity is formed. When the air chamber 40 is filled with air, a cushion 100 having a shape corresponding to the opening 31 of the frame member 30 is formed. By changing the shape of the opening 31, a cushion having a desired shape can be easily formed. Will be obtained.

In the manufacture, a rubber plate 20 is disposed on the bottom plate 10 and a frame material 3 is further placed on the rubber plate 20.
If the frame member 30 is adhered to the bottom plate 10 and the rubber plate 20 by, for example, a so-called autoclave or the like that adheres by applying heat and pressure in a vacuum state so as to prevent air bubbles and the like from being generated in the adhered portion, And it can be manufactured reliably and at low cost.

Next, a vehicle seat 2 according to the invention of claim 2 is described.
The air cushion 100 of FIG.
Since the air chamber 40 is formed between the air chamber 40 and the air cushion 100 according to the present invention, the advantage of the air chamber 40 formed by the rubber plate 20 which is a material having excellent elasticity is sufficiently obtained. It has become a good use of.

Meanwhile, an intermediate plate 11 is disposed on the bottom plate 10, and a rubber plate 20 is disposed on the intermediate plate 11. Then, both side edges of the rubber plate 20 disposed on the middle plate 11 are folded into the opposite side of the middle plate 11,
And the folded portion of the rubber plate 20 are adhered to the bottom plate 10. For this reason, the rubber plate 20 is firmly sandwiched between the bottom plate 10 and the middle plate 11 at both side edges, and the air chamber 40 formed between the middle plate 11 and the rubber plate 20 is
Is more securely sealed at the folded portion of

When the side edges of the rubber plate 20 are folded into the middle plate 11, the open portions 22 of the rubber plate 20 are formed at both ends of the middle plate 11.
A plate 32 made of a synthetic resin is disposed on the upper side, and the plate 32 is adhered to the outer edge of the open portion 22 of the rubber plate 20 and the outer edge of the bottom plate 10 extending from the rubber plate 20.
For this reason, in the open portion 22 of the rubber plate 20, the rubber plate 20 and the bottom plate 10 are integrated by the plate material 32 made of synthetic resin, as in the case of the air cushion 100 of the above-described claim 1, and the air chamber 40 is reliably formed. Will be sealed.

As described above, in the air cushion 100 according to the invention of claim 2, in addition to the operation of the air cushion 100 according to the invention of claim 1, a rubber plate 20 is provided.
The rubber plate 20 is divided into the middle plate 11 and the bottom plate 1
Therefore, the air chamber 40 can be firmly tightly sealed with the air chamber 40.

Further, since the bottom plate 10 and the middle plate 11 which hold the rubber plate 20 are adhered to each other on a wide surface, the bottom plate 10 and the middle plate 11 are firmly integrated.
It will be firmly pinched. And the rubber plate 20
Since the folded portions of both side edges are adhered to the bottom plate 10 and are firmly held by the bottom plate 10 and the middle plate 11 in this portion, the adhesion portion of the rubber plate 20 is hardly peeled or cracked even after many years of use, It will be excellent in durability.
Furthermore, since the middle plate 11 is adhered to the bottom plate 10,
This middle plate 11 can also reinforce the bottom plate 10.

[0019]

Next, embodiments of the air cushion 100 of the vehicle seat 200 according to the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an embodiment of an air cushion 100 of a vehicle seat 200 according to the present invention. A rubber plate 20 having an outer shape smaller than the bottom plate 10 is arranged on the bottom plate 10, and an air chamber 40 is formed between the bottom plate 10 and the rubber plate 20. Further, on the rubber plate 20, a frame member 30 is arranged so as to extend from the outer edge of the rubber plate 20, and the frame member 30 is adhered to the rubber plate 20 and the bottom plate 10 to be integrated, The air chamber 40 is sealed. In the present embodiment, the bottom plate 10 and the frame member 30 are formed of a fiber-reinforced plastic having excellent strength, and the bottom plate 10 and the frame member 30 are adhered to each other and firmly integrated by heating and pressing. It is so. The invention is not limited to this, and at least the frame member 30 may be formed of a synthetic resin so that it can be firmly bonded to the rubber plate 20 and the bottom plate 10. The bottom plate 10 is formed of an aluminum plate, another metal plate, or the like. Is good. Further, the bottom plate 10 may be formed by a rubber plate.

In order to form a plurality of air chambers 40, the frame member 30 has openings 31 that are separated and exposed from the rubber plate 20.
Is formed between the bottom plate 10 and the rubber plate 20, an air pipe 50 for supplying air to the air chamber 40 and discharging air from the air chamber 40, and the air chamber 40 and the air chamber 40. And a communication pipe 51 for communicating the Then, when air is supplied from the air pipe 50, as shown in FIG. 2, the rubber plate 20 of each air chamber 40 communicated by the communication pipe 51.
Expand under the pressure of air to form a cushion.

FIG. 3 shows a vehicle seat 200 according to the present invention.
Another embodiment of the air cushion 100 is shown. This air cushion 100 has two rubber plates 20 stacked on each other,
Frame material 3 having an outer shape larger than rubber plate 20 on both sides
0, that is, the frame member 30 extending from the outer edge of the rubber plate 20
And the upper rubber plate 20 and the upper frame member 30 are bonded together at the outer edge of the rubber plate 20, and the lower rubber plate 20 and the lower frame member 20 are similarly bonded to the outer edge of the rubber plate 20. The frame members 30 are adhered to each other at portions extending from the rubber plate 20. That is, in this air cushion 100, the bottom plate 10 is formed from the rubber plate 20 and the frame member 30 of the air cushion 100 shown in FIG. 40
Is formed. The air pipe 50 and the communication pipe 51 as described above are inserted between the two rubber plates 20, and when air is supplied from the air pipe 50, as shown in FIG. The two rubber plates 20 of each air chamber 40 connected by 51 expand by the pressure of air to form a cushion.

The frame member 30 of the upper rubber plate 20
More exposed portions are pads 21 made of rubber.
Is attached to the rubber plate 20 where the pad 21 is attached, and the rubber plate 2 where the pad 21 is not attached.
The expansion coefficients are different from each other. For this reason,
When the air chamber 40 is filled with air, as shown in FIG. 5, it expands into a shape corresponding to the pad 21 to which the rubber plate 20 is attached, and a cushion having a desired shape can be easily obtained. I have.

FIGS. 6 and 7 show an example of a vehicle seat 200 in which the air cushion 100 shown in FIG. 1 is disposed inside a backrest 210 and the air cushion 100 shown in FIG. Is shown. As shown in FIG. 8, the air cushion 100 of the backrest 210 is provided with the connecting pipes 5 respectively.
A first air chamber group 41 composed of a plurality of air chambers 40 connected by the first air chamber group 40 and a similar second air chamber group 42 are provided. A group 43 and a fourth air chamber group 44 are provided. The first to fourth air chamber groups 41, 42, 43, 44
By controlling the air from the individually arranged air pipes 51, they are individually expanded or contracted.

As shown in FIG. 6, the air supplied to each of the air chamber groups 41, 42, 43, and 44 is controlled by a control switch 60 disposed on the side of the vehicle seat 200. Source compressor 68 and each air chamber group 4
As shown in FIG. 10, the air tubes 51 of 1, 42, 43, and 44 are connected via a control switch 60.

The operation of the control switch 60 will now be described. First, supply or discharge of air to or from each of the air chamber groups 41, 42, 43, and 44 is determined by pressing a supply switch 66 or a discharge switch 67 provided in the control switch 60. These supply switch 66 and discharge switch 67
Is connected to the switching valve 65 and the supply switch 6
When 7 is pressed, the switching valve 65 is operated using the air from the compressor 68 as a drive source, and the air from the compressor 68 can be supplied to each of the air chamber groups 41, 42, 43, 44. When the discharge switch 66 is pressed, the switching valve 65 is operated in the same manner, and each air chamber 4
It becomes possible to discharge the air from 1, 42, 43 and 44. Since the switching valve 65 operates using air from the compressor 68 as a driving source, it has a simple structure that does not require control of an electric system such as an electromagnetic valve.

Next, the control switch 60 includes a first switch 61, a second switch 62, and a third switch for opening and closing the air pipes 51 of the first to fourth air chamber groups 41, 42, 43, and 44, respectively. A switch 63 and a fourth switch 64 are provided, and the switches 61, 62, 63, 64 are used to select the air chamber groups 41, 42, 43, 44 for supplying or discharging air. That is, by pressing the first to fourth switches 61, 62, 63, 64, the air pipe 50 connected thereto is opened, and the state of the switching valve 65 at this time is changed to the state in which air can be supplied. Air tube 5
0 is supplied to the air chamber groups 41, 42, 43, and 44 via the
Air is discharged from the air chamber groups 41, 42, 43, and 44 via the “0”.

In this embodiment, a precision regulator 69 is provided between the compressor 68 and the control switch 60, and the precision regulator 69 controls the supply pressure of the air below the breaking pressure of the rubber plate 20. It is like that. For this reason, even if the first to fourth switches 61, 62, 63, and 64 are continuously pressed to supply air, the rubber plate 20 is not broken.

On the other hand, the bottom plate 10 of the air cushion 100 disposed inside the backrest 210 is made of fiber reinforced plastic and has excellent strength. As shown in FIG. Is also configured. For this reason, the vehicle seat 200 has a simplified configuration. Further, as shown in FIG. 9, the air cushion 100 disposed inside the seat 220 has:
It is stored in the die-cut urethane pad 230,
The urethane pad 230 and the air cushion 100 can keep the complex shape of the seat 220.

As shown in FIG. 7, a urethane pad 230 is provided on the upper layer of each of the air cushions 100 of the seat 220 and the backrest 210, so that the vehicle seat 200 has good air permeability. A surface material (not shown) made of cloth, leather, or the like is provided on the surface of the vehicle seat 200. Usually, the surface material is held on a frame or the like of the vehicle seat 200 by a tension cloth having no elasticity. But
The surface material of the portion provided with each air cushion 100 is held by an elastic rubber band.
Even if the shape of each air cushion 100 changes depending on the degree of air filling, the surface material does not wrinkle and has excellent aesthetics.

Next, FIGS. 11, 12 and 13 show an embodiment of the air cushion 100 of the vehicle seat 200 according to the invention of claim 2. FIG. On the bottom plate 10, a middle plate 11 having an outer shape smaller than the bottom plate 10 is arranged,
In the middle plate 11, both side edges of the rubber plate 20 are folded into the opposite sides of the middle plate 11. Then, the middle plate 11 and the rubber plate 2
0 is bonded to the bottom plate 10 with an adhesive 12, and an air chamber 40 is provided between the middle plate 11 and the rubber plate 20.
Is formed. Here, in the present embodiment, a thermosetting resin is adopted as the adhesive 12, and the middle plate 11 in which both side edges of the rubber plate 20 are folded on the bottom plate 10.
Bottom plate 10 by a simple operation of placing and heating and pressing
The middle plate 11 and the folded portion of the rubber plate 20 can be bonded to each other.

When both side edges of the rubber plate 20 are folded into the middle plate 11, the open portions 22 of the rubber plate 10 are formed at both ends of the middle plate 11.
On the upper side, a plate member 32 is arranged so as to extend from the outer edge of the rubber plate 20. The plate member 32 is bonded to the rubber plate 20 and the bottom plate 10 to integrate the rubber plate 20 and the bottom plate 10, and the air chamber 40 formed between the middle plate 11 and the rubber plate 20 is sealed. is there. An air pipe 50 is inserted between the rubber plate 20 and the middle plate 11 forming the air chamber 40, and when air is supplied from the air pipe 50,
The portion of the rubber plate 20 to which the plate member 32 is not adhered expands to form a cushion.

In this embodiment, the bottom plate 10 and the middle plate 11 are formed of an aluminum plate, and the plate 32 is formed of a so-called glass prepreg in which a glass fiber cloth is impregnated with a synthetic resin varnish such as an epoxy resin. Then, by a simple operation of heating and pressing the plate member 32, the rubber plate 20
The plate member 32 can be bonded to the bottom plate 10.
However, the present invention is not limited to this.
0 and the bottom plate 10 may be more firmly integrated.

In FIG. 14, two air cushions 100 shown in FIG. 11 are used, and the bottom plates 10 are connected by hinges 13 and stacked on each other to form a two-layer air chamber 40.
Is formed. In this way, the air chambers 4 of the two air cushions 100 are stacked.
By supplying air to the zero, the whole can be more greatly expanded. Further, if the air pressure of each air cushion 100 can be individually controlled, the lower air cushion 1 can be controlled.
By controlling the air cushion 100 and the upper air cushion 100 individually, the shape of the entire air cushion 100 can be adjusted more variously.

As described above in detail, the air cushion of the vehicle seat according to the first aspect of the present invention has an air chamber formed of a rubber plate having excellent elasticity, and is formed of a synthetic resin. The frame material is bonded to a rubber plate and a bottom plate to integrate the rubber plate and the bottom plate, and the air chamber is sealed. The rubber chamber and the bottom board are firmly integrated without using an adhesive or a rivet as in the prior art, and the air chamber is securely sealed.

Next, the air cushion of the vehicle seat according to the second aspect of the present invention has an air chamber formed of a rubber plate also having excellent elasticity. Is folded and the both side edges of the rubber plate are sandwiched between the middle plate and the bottom plate, whereby the rubber plate is firmly integrated with the bottom plate so that the air chamber can be more securely sealed.

Therefore, according to the present invention, the air chamber formed by the rubber plate can be securely and firmly sealed.
An air cushion for a vehicle seat that has excellent durability without air leakage even after many years of use and that can fully utilize the advantages of an air chamber formed of a rubber plate can be provided with a simple structure.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of an air cushion of a vehicle seat according to the invention of claim 1;

FIG. 2 is a partial sectional view showing a state in which air is filled in an air chamber of the air cushion shown in FIG.

FIG. 3 is an exploded perspective view showing another embodiment of the air cushion of the vehicle seat according to the present invention.

FIG. 4 is a partial cross-sectional view showing a state in which air is filled in an air chamber of the air cushion shown in FIG.

FIG. 5 is a cross-sectional view showing a state in which air is filled in an air chamber in which a pad is attached to a rubber plate.

FIG. 6 is a perspective view showing an example of a vehicle seat employing the air cushion of the present invention.

7 is a cross-sectional view of the vehicle seat shown in FIG.

FIG. 8 is a perspective view showing an air cushion used in the vehicle seat shown in FIG. 6;

FIG. 9 is an exploded perspective view showing a seat of the vehicle seat shown in FIG. 6;

FIG. 10 is an air piping diagram of an air cushion of the vehicle seat shown in FIG. 6;

FIG. 11 is an exploded perspective view showing one embodiment of an air cushion of a vehicle seat according to the invention of claim 2;

FIG. 12 is a sectional view taken along line AA in FIG. 11;

FIG. 13 is a sectional view taken along the line BB in FIG. 11;

14 is a cross-sectional view showing an example in which a two-layer air chamber is formed using the air cushion shown in FIG.

FIG. 15 is an exploded perspective view showing a conventional air cushion.

FIG. 16 is an exploded perspective view showing a conventional air cushion.

[Explanation of symbols]

 Reference Signs List 10 bottom plate 11 middle plate 12 adhesive 13 hinge 20 rubber plate 21 pad 22 opening 30 frame 31 opening 32 plate 40 air chamber 41 first air chamber group 42 second air chamber group 43 third air chamber group 44 fourth Air chamber group 50 Air pipe 51 Communication pipe 60 Control switch 61 First switch 62 Second switch 63 Third switch 64 Fourth switch 65 Switching valve 66 Discharge switch 67 Supply switch 68 Compressor 69 Precision regulator 100 Air cushion 200 Vehicle seat 210 Backrest 220 Seat 230 Urethane pad

Claims (2)

(57) [Scope of request for utility model registration] 1. An air cushion for a vehicle seat disposed inside a seat, a backrest, a headrest, and the like of the vehicle seat, comprising: a bottom plate; and an outer shape smaller than the bottom plate and disposed on the bottom plate. And a frame member made of a synthetic resin plate having an outer shape larger than that of the rubber plate and having an opening formed on the rubber plate and exposing a part of the inner side thereof. An outer edge portion is bonded to an outer edge portion of the rubber plate and an outer edge portion of the bottom plate extending from the rubber plate to form an air chamber between the bottom plate and the rubber plate. Air cushion. 2. An air cushion for a vehicle seat disposed inside a seat, a backrest, a headrest, and the like of the vehicle seat, wherein the air cushion has a bottom plate and an outer shape smaller than the bottom plate, and is disposed on the bottom plate. A middle plate, a rubber plate which is arranged on the middle plate and has both side edges folded on opposite sides of the middle plate to form open portions at both ends of the middle plate, and the open portion of the rubber plate A plate made of a synthetic resin disposed thereon, wherein the middle plate and the folded portion of the rubber plate are bonded to the bottom plate, and the plate is bonded to an outer edge of an open portion of the rubber plate, and a rubber plate. An air cushion for a vehicle seat, characterized in that an air chamber is formed between a middle plate and a rubber plate by being bonded to an outer edge portion of a bottom plate extending from the bottom plate.