KR950007577B1 - Chair air supporter and chair using the air supporter and manufacturing method thereof - Google Patents

Abstract

No content.

Description

[Name of invention]

Chair air supporter and chair using the air supporter and manufacturing method thereof

[Brief Description of Drawings]

1 to 22 show examples of use of the air support for chairs of the present invention, and FIGS. 1 to 3 show a first embodiment in which a single suspension cloth is used.

4 to 6 show the second embodiment using several suspension cloths.

7 and 8 show a third embodiment in which a plurality of suspension cloths are used and a surface is used in an uneven state.

9 and 10 illustrate a fourth embodiment in which the surface of the wave is formed in a wave shape using several suspension cloths as shown in FIG.

11 and 12 show a state in which an independent air chamber is used by using a plurality of suspension guns.

13 to 15 show an example in which an opening is provided at a portion thereof and used.

16 to 22 are seventh embodiments showing an example of using a tubular body as a suspension cloth.

23 to 29 show a manufacturing method when the air support for a chair of the present invention is used for a chair or the like, and the improved manufacturing method for FIGS. 70 to 74 is shown.

In addition, FIGS. 30-33 and 46-59 show a special suspension gun.

34 to 45 show examples of the air support of the present invention using a tapoorin material, specifically,

34 is a partially cutaway perspective view showing an air bag carried out using the tapoorin material of the present invention.

35 is a homogeneous cross-sectional view.

FIG. 36 is a partially cutaway perspective view showing a forming sheet for forming the airbag shown in FIG. 34; FIG.

37 is a longitudinal cross-sectional view.

38 is an embodiment using a tapoorin in the present invention, but partially cutaway perspective view showing an airbag devised to the circumference.

39 is the longitudinal cross-sectional view.

FIG. 40 is a partially cutaway perspective view showing a forming sheet for forming the airbag shown in FIG. 38; FIG.

41 is the same longitudinal cross-sectional view.

Fig. 42 is a partially cutaway perspective view showing an airbag to be used by further improving the peripheral portion.

43 is a longitudinal cross-sectional view.

FIG. 44 is a partially cutaway perspective view showing a forming sheet for forming the airbag shown in FIG. 42; FIG.

45 is a longitudinal cross-sectional view.

60 to 69 show an embodiment of a chair using an air support,

60 is a partially cutaway perspective view showing the inside of a vehicle seat equipped with an air support device according to the present invention;

61 is an X-ray cross-sectional view of FIG. 60;

62 is a sectional view taken along the line Y-Y of FIG. 60;

63 is a sectional view taken along the line Z-Z of FIG. 60;

64 is an enlarged view of a portion W of FIG. 63;

Fig. 65 is a partially cutaway perspective view showing the stretch body of the thigh support part.

Fig. 66 is a partially cutaway perspective view showing the stretchable body of the side support part of the back side.

Fig. 67 is a partially cutaway perspective view showing the stretchable body of the side support part of the sitting part.

Fig. 68 is a partially cutaway perspective view showing a forming sheet cut into a rectangle.

69 is a sectional view of a forming sheet.

75 to 77 are descriptions of the air support for the chair.

Detailed description of the invention

[Technical Field]

The present invention relates to an improvement of an air support used for an air support for a chair, particularly an automobile seat, and further studies of the improved air support for the use surface and manufacturing method.

[Background]

Conventionally, this type of air support is a simple air bag, and the air bag has been mainly used to inflate or exhaust air or the like to expand or expand the air bag.

For this reason, only one air support suited the user's body. In addition, since the air support is simply stored even when the air support is contained in the seat cushion or the seat bag, the surface of the seat cushion or the seat bag expands in a curved shape even when air or the like is injected. There was a defect in that it was not a perfect fit for the body, and the effect of relieving the fatigue of the seat occupant and fatigue was not sufficiently obtained.

The present invention aims to solve these conventional drawbacks.

[Initiation of invention]

First, according to the first aspect of the present invention, a chair is provided in an uneven shape by installing a mold blister over an upper facing surface and a lower facing surface or a side cloth of a stretchable airbag main body. It is an air support for use, and unlike the conventional airbag, it is possible to provide a chair that fits to the body by forming the surface in a proper irregularity shape. The configuration of the second aspect of the present invention provides a flexible airbag in the first invention. Since the air support is characterized by using a tarpaulin material over part or all of the main body and the suspension cloth, the airbag main body and the suspension cloth are deformed even if the force is exerted more than necessary for the first invention. In addition, durability is increased by retaining reinforcement.

Since the structure of 3rd invention is a chair air support body which inserts the breathable soft urethane foam body into the air support body for chairs in 1st invention, it is necessary to supply and supply air of air with respect to 1st invention. Therefore, a practical air support for chairs is obtained.

According to a fourth aspect of the present invention, in the air support main body for chair according to the first aspect of the present invention, the air support main body is formed by using a tarpaulin material for a part or all of the stretchable air bag main body and the suspension cloth. The air support for chairs formed by inserting a breathable soft urethane foam into the air support body has an external shape and does not necessarily require an air supply / exhaust device. Improvements were made.

The fifth aspect of the invention is a chair using an air supporter, wherein the air support body for chairs of the first to fourth inventions is sealed to one or both of the seat cushion or the seat bag. It is an invention which shows the use place of invention, and it is invention which specified that it is beneficial to use for the seat cushion, the seat bag, or both of chairs.

In the sixth invention, the air support of the first to fourth invention is housed in the center of the mold of the seat cushion or the seat bag, the liquid of the flexible foam material is injected over the entire circumference of the air support for the chair, and then the A method for manufacturing a chair with an air support, characterized in that the liquid of the flexible foam material is solidified and taken out from the molding mold to form a seat cushion or a seat bag. The air support of claim 1 to 4 is used. By showing the best way to manufacture a chair.

Next, the seventh aspect of the present invention provides an air pump for supplying air, a stretchable body that expands and contracts by supplying and discharging the air sent from the air pump built in a predetermined position of the vehicle sheet, and the vehicle sheet. The stretchable body, which is provided on the back surface of the surface layer member constituting the front surface part along a predetermined portion, is made of a support plate made of a retractable material in the sheet surface direction by the above-described stretching and contracting motion of the stretchable body. Two sheets of sheet formed by integrally thermal welding of two sheets of thermoplastic synthetic resin between two sheets of thermoplastic synthetic resin and sealing the edges of the air bag In addition, while polymerizing a plurality of the airbags, a predetermined portion in the contact surface of the airbags adjacent to each other is bonded to each other. A chair using an air support, which is formed by opening a ventilation hole communicating with the air chambers of the airbags described above in the mating portion, and related to the improvement of the use means according to the first to fourth aspects of the present invention. This ensures the elasticity on the surface of the chair by retaining certainty.

Best Mode for Carrying Out the Invention

First, some examples of embodiments of the present invention will be described based on the drawings.

EXAMPLE

In the first embodiment, the rectangular suspension cloth 2 is provided between the upper facing surface 1a and the lower facing surface 1b inside the airbag body 1, and the airbag body ( The cross-sectional shape at the time of expansion of 1) is made into rectangular shape. The airbag body 1 polymerizes two sheets of thermoplastic soft urethane resin, heat welds the entire circumference of the sheet to form a rectangular plane, and a pump not shown on one side of the front and back surfaces. An air supply / exhaust system 3 for connecting air is provided.

The suspension cloth 2 is made of the same material as that of the airbag body 1, and is arranged on or around the center line of the long side direction in the airbag body 1 as shown in FIG. As shown in. One piece is arranged on the center line of the short side direction in the airbag main body 1, and the upper and lower long sides are heat-welded to the upper facing surface 1a and the lower facing surface 1b inside the airbag body 1, respectively. It is. The length of the suspension cloth 2 is slightly shorter than the long side or the short side of the airbag main body 1, so that the air chamber in the airbag main body 1 is kept unbroken by the suspension cloth 2. In addition, you may use the suspension cloth 2 as a tubular shape.

13, 14 and 15, in order to facilitate folding, the suspension cloth 2 overlaps two bubbles and bonds one side to each other. It is good also as what crimped in the direction which overlaps from a center. As shown in Figs. 32 and 33, two bubbles are overlapped and bonded to each other to form a tubular shape, and the upper and lower center portions are adhered to the upper facing surface 1a and the lower facing surface 1b, respectively. You may use it.

In the airbag of the first embodiment as described above, if air is supplied from the air supply body 3 into the airbag main body 1, the airbag main body 1 faces the upper facing surface 1a by the suspension cloth 2 and faces the lower side. The intervals between the sides 1b are expanded and maintained evenly, and the cross-sectional shape at the time of expansion of the airbag main body 1 is preserved in a rectangular shape so that the front and back surfaces of the airbag main body become flat surfaces.

In addition, in this first embodiment, one suspension cloth is used. However, FIGS. 4, 5, 6, 7, 8, 9, 10, 11, and 12 As shown in Figs. 31 and 33, a plurality of suspension cloths may be provided in parallel, for example, two to three. When a plurality of suspension cloths are provided in this way, the prosthesis effect of the airbag main body becomes high, and the cross-sectional shape of the main body can be approximated to a more rectangular shape, and the main body surface can be reliably flat.

In the second embodiment, as shown in FIG. 4, the suspension cloth 2 provided on the upper facing surface 1a and the lower facing surface 1b inside the airbag main body 1 has a triangular shape, or As shown in FIG. 5 and FIG. 6, a plurality of rectangular suspension cloths 2 are arranged, for example, two of them, so as to unevenly divide the airbag main body 1 in the short side direction or the long side direction. The height of 2) is gradually increased in parallel direction. In the case of installing the triangular suspension cloth 2, the number of sheets may be one or more than one, but if the suspension cloth 2 is one, the suspension cloth 2 is placed in the short or the long side of the airbag body 1. It is preferable to arrange | position each suspension cloth 2 so that the airbag main body 1 may be divided | segmented evenly in a short side direction or a long side direction in the case of arrange | positioning on the center line of a direction, and in the case of multiple sheets.

In the second embodiment as described above, the space between the upper facing surface 1a and the lower facing surface 1b at the time of inflation of the airbag main body 1 is the suspension cloth 2 or the plurality of suspension cloths 2. Is preserved so as to gradually increase in the short side direction or the long side direction, the cross-sectional shape of the airbag body 1 becomes a triangle, and the main body surface becomes an inclined surface.

In the third embodiment, as shown in FIG. 7, the suspension cloth 2 is formed in a shape in which one long side of the rectangle is cut into an arc shape, and the suspension cloth 2 is in the short side direction of the airbag body 1 or The rectangular suspension cloth 2 is arranged so as to be arranged in plural sheets, for example, two in parallel in the long side direction, or evenly divide the airbag main body 1 in the short side direction or the long side direction as shown in FIG. A plurality of sheets, for example, four are arranged, and the height of each suspension cloth 2 is made higher on the outside and lower on the inside, respectively.

In the third embodiment as described above, the space between the upper facing surface 1a and the lower facing surface 1b at the time of inflation of the airbag main body 1 is a suspension cloth 2 or a plurality of suspension cloths 2. Is preserved so as to change in a secondary curve, and the cross-sectional shape of the airbag main body 1 becomes a shape in which one long side of the rectangle is recessed into an arc shape, and the main body surface becomes a concave surface.

In the fourth embodiment, as shown in FIG. 9, the suspension cloth 2 is cut out like a rectangular long side drawing a sine curve, and the suspension cloth 2 is made of an airbag main body. In the short side direction or long side direction of 1), a plurality of sheets may be arranged in parallel, or as shown in FIG. 10, the airbag body 1 may be divided into a rectangular or long side direction to be divided equally in a short side direction or a long side direction. A plurality of suspension cloths 2 are arranged, for example, five, and the height of each of the suspension cloths 2 is increased in the intermediate position and in both the outer position, while lowering the position between them. will be.

In the fourth embodiment as described above, the space between the upper facing surface 1a and the lower facing surface 1b of the airbag main body 1 when the airbag body 1 is inflated is the suspension cloth 2 or the plurality of suspension cloths 2. Is preserve | saved so that it may change sinusoidally, and the cross-sectional shape of the airbag main body 1 will become a shape which made one long side of a rectangle the sinusoidal curve, and a main body surface becomes a curved surface with a mountain part and a valley part.

The embodiment of the suspension cloth 2 may be used as shown in FIGS. 30 and 31, or 32 and 34. FIG. Thereby, the uneven surface can be easily installed on the upper facing surface 1a and the lower facing surface 1b, so that it can be well adapted to the human body.

11 and 12, the airbag main body 1 is provided with a rectangular suspension cloth 2 between the inner facing surfaces 1a and 1b, and on the rear surface thereof. An air supply / exhaust system 3 for connecting with a pump (not shown) is provided.

The suspension cloth 2 is made of the same material as that of the airbag body 1, and is arranged in parallel at a short distance in the direction of the main body 1, and the upper and lower edge portions thereof respectively have an upper facing surface inside the airbag body 1 ( 1a) is welded to the lower opposing surface 1b. The length of the suspension cloth 2 is slightly shorter than the long side of the airbag main body 1, so that the air chamber of the airbag main body 1 is interposed by the suspension cloth 2, and constitutes a small air chamber 4. Alternatively, the length of the suspension cloth 2 may be the length of the long side of the airbag body 1. The very small air chamber 7 arranges the strip-shaped sheet 5 cut to a predetermined width over the entire length of the above-mentioned heat-welded portion of the airbag body 1, and the edges of the entire circumference of the airbag body ( 1) It is formed by thermal welding on the surface.

In addition, the above-mentioned strip-shaped sheet 5 is a portion where the recesses of the grooves are formed at both sides of the groove-shaped recesses formed along the support of the suspension cloth 2 on the surface of the main body when the airbag main body 1 is inflated. The width | variety of the strip | belt-shaped sheet | seat 5 and the very small air chamber 7 is determined according to the width | variety of the said groove-shaped recessed part.

And the communication hole 6 is provided in the surface of the airbag main body 1 inside the very small air chamber 7, and the inside of the main body 1 and the very small air chamber 7 are communicated.

When the airbag main body 1 of the embodiment as described above supplies air from the air supply and exhaust air inlet 3, the airbag main body 1 expands while maintaining the opposing surface inside the airbag body 1 at regular intervals by the suspension cloth 2. The cross-sectional shape is kept in a rectangular shape so that the small air chamber 4 may be configured or connected independently. At this time, the tension of the suspension cloth 2 causes the suspension cloth 2 to rest on the surface of the airbag body 1. Groove-shaped recesses are formed along the supporting portion of the edge, but the recesses are covered by the band-like sheet 5 by expanding together with the main body 1 of the above-mentioned very small air chamber 7 provided along this portion. This fills the state.

In addition, in the above embodiment, the suspension cloth 2 may be reduced to one sheet or may be extended to three to four sheets, and it is of course also possible to arrange them toward the short side direction of the airbag body 1, Therefore, even in these cases, a very small air chamber 7 is provided in the support portion of the suspension cloth 2 on the surface of the airbag main body 1 so as to keep the surface of the main body 1 flat.

In addition, as shown in Figs. 13 and 14, holes 8 are provided in the upper facing surface 1a and the lower facing surface 1b of the airbag body 1, respectively, and these holes 8 Suspension cloth (2) is installed over the circumferential edge of the.

The airbag main body 1 overlaps two sheets made of thermoplastic soft urethane resin, and heat-welds the edges of the entire circumference of the sheet to form a rectangular plane, and one of the upper facing surface 1a or the lower facing surface 1b. The air supply / exhaust mechanism 3 connected with the pump which is not shown in figure is provided.

The holes 8 provided in the upper facing surface 1a and the lower facing surface 1b are oval or circular having the same diameter, respectively, and are located at the center of the upper facing surface 1a and the lower facing surface 1b. It has a relatively large opening area.

The suspension cloth 2 is made of the same material as the airbag body 1, and may be formed by heat welding the upper suspension cloth 2a and the lower suspension cloth 2b by using two strips of cloth. It is comprised so that folding is possible, and the upper and lower peripheral edges are heat-welded to the peripheral edge of the hole 8 mentioned above.

When the airbag main body 1 of the present embodiment as described above is supplied with air from the air supply exhaust pipe 3 to expand the main body 1, the suspending cloth 2 causes the upper facing surface 1a and the lower facing surface ( The distance between the peripheral edges of the hole 8 of 1b) is maintained uniformly, and the space keeping action extends to the upper facing surface 1a and the lower facing surface 1b around the hole 8, so that the upper facing face The spacing between the face 1a and the lower opposing face 1b is kept uniform. In the state where the airbag main body 1 is inflated, the upper facing surface 1a and the lower facing surface 1b of each surface become flat surfaces. At the time of contraction of the airbag main body 1, as shown in FIG. 13, the suspension cloth 2 is folded into the airbag main body 1 by the joint structure. FIG. 15 shows the contracted state of the embodiment shown in FIG.

In the following, description will be given based on the drawings of the embodiments of the present invention.

As shown in FIG. 16 and FIG. 17, the airbag main body 1 is provided with the tubular suspension cloth 2 between the upper upper facing surface 1a and the lower facing surface 1b.

The transparent surface sheet and the back sheet which are thermoplastic soft urethane resins forming the air bag main body 1 are polymerized, and then the suspension cloth 2 is thermally welded to a predetermined position on the opposite surface of both sheets, and then the above-mentioned amount is The entire circumference of the sheet is thermally welded to form a plane in a rectangular shape.

The suspension cloth (2) is formed in the tubular shape using the same material as the airbag body (1), the long side in the center between the upper facing surface (1a) and the lower facing surface (1b) of the airbag body (1) And spread out in two directions, and the top and bottom portions, which are the contact portions of the upper facing surface 1a and the lower facing surface 1b on the circumferential surface of the suspension cloth 2, are placed on the upper facing surface ( It is fixed by heat welding to 1a) and the lower opposing surface 1b with a predetermined width.

As described above, the top and bottom portions of the circumferential surface of the suspension cloth 2 are fixedly attached to the upper facing surface 1a and the lower facing surface 1b with a predetermined width as shown in FIGS. 16 and 17. As shown in FIG. 18, two spots on both sides of the fixed width on the periphery of the suspension cloth 2 are thermally welded linearly over the entire length of the suspension cloth 2, or as shown in FIG. (2) Thermal welding of the entire fixing width of the circumferential surface.

19, 20, 21 and 22, the process of actually welding the suspension cloth 2 to the upper facing surface 1a and the lower facing surface 1b by the former method will be explained based on the figures. do.

As shown in FIG. 19, the suspension cloth 2 is inserted into the rod-shaped lower electrode C1 to be retained, and the sheet-shaped upper facing surface 1a is placed on the suspension cloth 2 and positioned. Next, the upper electrode (C ₂ ) is pressed onto the upper facing surface 1a of the sheet shape, and the uppermost surface of the suspension cloth 2 and the upper facing surface 1a of the sheet shape are sandwiched by the lower electrode C ₁ . to support, by supplying current to the positive electrode _{(C 1), (C 2} ) is heat welded. Next, as shown in FIG. 20, the position where the lower electrode C ₁ is to be placed is separated so as not to overlap by a fixed fixed width in the circumferential direction of the suspension cloth 2, and the positive electrodes C ₁ and (C) are separated. ₂ ), the suspension cloth 2 and the sheet-shaped upper facing surface 1a are sandwiched between them, and then thermally welded as shown in FIG.

As described above, the suspension cloth 2 and the sheet-shaped upper facing surface 1a are thermally welded, and then the suspension table 2 is half-rotated with the lower electrode C ₁ interposed therebetween. The fixed attachment portion of the welded suspension cloth (2) and the opposite surface of the suspension cloth (2) face upward, and this portion is placed at the fixed attachment position of the sheet-shaped lower facing surface (1b) at the upper facing surface of the sheet shape. Thermal welding is carried out in the same manner as in (1a), and the suspension cloth 2 is fixedly attached across the upper and lower facing surfaces 1a and 1b.

Hanging cloth (2) is tubular so sandwiched lower electrode (C _1), bar-shaped, so pressing surface is naturally hanging cloth (2) held preserved in a state butted on the top of the inner surface of the electrode (C _1), the suspension The hassle of fitting the welded portion of the fabric 2 to the lower electrode C ₁ and the hassle of maintaining it in this state becomes unnecessary, and thus the sheet-shaped upper part of the suspension cloth 2 preserved and maintained in the above state is to the opposite surface (1a) determines the position with both hands, as a simple and easy operation by the support by inserting the upper electrode (C ₁₎ for energizing the upper and lower electrodes _{(C 1), (C 2} ) can be heat-welded.

After the thermal welding of the suspension cloth 2, the upper and lower facing surfaces 1a and 1b are thermally welded at their edges to form an airbag body 1 having a rectangular plane, and the main body 1 The air supply and exhaust pipe (3) is installed on the back side of the. At this time, both ends of the suspension cloth 2 are sandwiched between the upper and lower facing surfaces 1a and 1b and thermally welded at once.

As a result, both ends of the suspension cloth 2 are crushed in the contracting direction of the airbag main body 1, and the entire suspension cloth 2 is also maintained in the crushed state. As shown in FIG. 22, when the airbag main body 1 is contracted, the above-mentioned suspension cloth 2 is crushed together with the airbag main body 1 in a thin state, and thus the airbag main body 1 No unnecessary projections on the surface.

In addition, in the circumferential surface of the suspension cloth 2, the upper suspension cloth 2a and the lower suspension cloth 2b are extended in the expansion direction by the tension of the airbag main body 1 with the upper and lower fixed attachment portions interposed therebetween, as shown in FIG. As one can see, the cross section is deformed rectangular. However, the air passage hole 9 is drilled in the circumferential surface of the suspension bag 2 so that the air in the air bag body 1 enters and exits the suspension bag 2 deformed by the expansion and contraction of the air bag body 1. It installs and frees deformation of the suspension cloth 2, and makes the small air chamber 4 independent.

In addition, the bent portion around the edge of the suspension cloth 2 may be wrinkled in advance so that the suspension cloth 2 may be easily crushed, and the length of the suspension cloth 2 is slightly shorter than the long side of the airbag body 1. Thus, the air chamber of the airbag main body 1 may be kept unitary as the suspension cloth 2 without clogging. At this time, it is not necessary to provide the passage hole 9 in the suspension cloth 2 above.

When the airbag main body 1 of the present embodiment as described above supplies air from the air supply and exhaust vent 3 inside thereof, the upper suspension cloth 2a and the lower suspension cloth 2b of the suspension cloth 2 together in the expansion direction. It spreads and becomes taut, and uniformly maintains the space | interval of the upper facing surface 1a and the lower facing surface 1b of the airbag main body 1. As shown in FIG. At this time, since both side portions of the suspension cloth 2 are tightened at a distance of a fixed attachment width to each other, the airbag main body 1 exhibits the same prosthesis effect as two suspension cloths are installed in parallel with the above-mentioned distance. The upper opposing surface 1a and the lower opposing surface 1b of U are uniformly stored in two places, and the cross-sectional shape of the air bag main body 1 is maintained in a more accurate rectangular shape than that of a single suspension cloth. The front and back surfaces form a shape close to the flat surface.

In addition, in the above-mentioned embodiment, the number of suspension cloths is two or three pieces, for example, and it is free of course to arrange them in parallel in the short side direction of the airbag main body 1, and is free. Thus, when a plurality of suspension cloths are provided, the prosthesis effect of the airbag main body 1 becomes higher.

In addition, the suspension cloth 2 may be provided independently of each other by using a + -shaped shape, or the passage hole 9 may pass through the suspension cloth 2.

In addition, the improvement of the suspension cloth 2 is demonstrated by FIG. 46-FIG. 53 by making it a summary that the anti-fogging cloth 10 was further provided between the suspension cloths 2, 46 and 47 and 48 show that the anti-reflective cloth 10 is bonded to the upper suspension cloth 2a, and FIGS. 49 and 50 show one of the upper suspension cloth 2a and the lower suspension cloth. Fig. 51 shows one of the ends of the anti-reversal cloth 10 bent and fixed to the center of the suspension cloth 2, respectively. FIG. 52 shows a state in which the suspension cloth 2 having a tubular shape is used, and FIG. 53 shows the basic invention of the present invention. 54 to 58 are views for explaining the further improved invention of the tubular suspension cloth 2, and the basic invention of FIG. 59 is shown to supplement the explanation. The tubular suspension cloth 2 shown in FIG. 59 is bulged in a state in which both front and back surfaces are curved outward when the airbag main body 1 expands, and both front and back surfaces of the main body 1 are circumscribed. Since it is rounded, this tubular suspension cloth 2 does not spread uniformly over the whole length, and wrinkles as shown in the surface of the suspension cloth 2 arise. In addition, the wrinkle part of the suspension cloth 2 is inverted by the change in the tension applied to the suspension cloth 2, and there is a defect that generates a loud noise every time. As shown in the figure, the anti-reversal hole 11 is provided to successfully prevent the generation of sound.

In addition, although the material used in a basic invention mainly used the sheet | seat made from a thermoplastic soft urethane resin, this invention is not limited to this, The thiaorolin material may be used as the 2nd invention. The effect is greater. When explaining the tapoorine material in detail, the airbag main body 1 shown in Figs. 34 and 35 is formed between the thermoplastic synthetic resin sheet on the front and back sides and the two sheets as shown in Fig. 36. A tapoorinic material (T) consisting of three layers with a cloth (1c) to be sandwiched is used. The thermoplastic synthetic resin sheet is, for example, a thermoplastic soft urethane resin sheet, and the cloth (1c) is nylon. Or the thing with polyester high tension property is used.

Moreover, as shown in FIG. 37, when forming the tapoorin material T, the urethane resin sheet is polymerized on both surfaces of this cloth 1c, centering on the cloth 1c, and these peripheral edges of these three are formed. The part is thermally welded to a predetermined width to form a sheet structure having a three-layer structure.

When forming the airbag main body 1, two sheets of said apo aorine material (T) are polymerized, and the suspension cloth 2 which consists of a tapo aorine material (T) is heat-welded on the superposition | polymerization surface as mentioned above. After that, the peripheral edges may be thermally welded again.

The airbag main body 1 was formed using a tapoorin material (T) heat-welded around the airbag main body 1, but the airbag main body 1 was composed of two pieces of cloth 1c and four pieces of urethane resin sheets in a predetermined order. It may be polymerized with a film, and the edges thereof may be formed by thermal welding at a time.

The airbag main body 1 shown in FIG. 38 is formed in the same manner as the above-mentioned airbag main body 1 by the taapoorin material T as shown in FIG. 40 and FIG.

42 and 43, the airbag main body 1 shown in Fig. 44 and 45 is formed in the same manner as the airbag main body 1 using the tapoorin material T as shown in Figs. It is shown.

The above-mentioned taapoorin material (T) polymerizes a urethane resin sheet on both sides of the cloth (1c) and the front and back cut so that the plane becomes a rectangle, and the three peripheral edge portions are sewn and attached as shown in FIG. After that, the seam seam surface is coated with a covering sheet made of thermoplastic synthetic resin such as thermoplastic soft urethane resin, and the seam seam between the covering sheet and the front and back side sheets is thermally welded to maintain the airtightness in this portion. .

The tapoolin material (T), which is considered to be the best, has a cross-sectional structure as shown in Figs. 68 and 69. The details are 50 to 100 microns in thickness, which combines non-elasticity and high tensile strength. 70-200 mesh-woven fabrics are sandwiched between two thermoplastic synthetic resin sheets, and both thermoplastic synthetic resin sheets are thermally welded to each other.

75 to 77, the urethane foam is inserted into the air bag main body 1 having the suspension cloth 2, and the air support for the chair is shown. When the urethane foam (U) produces the same effect as the suspension cloth (2), the above-mentioned suspension cloth is not necessarily required. One compounding example of the urethane foam (U) is shown below.

TABLE 1

The reaction temperature of this urethane foam (U) is about 60 to 70 degreeC, the density is 50 kg / m <^3> and the hardness is 20 kg.

Next, the invention using the air support for chair of this invention is demonstrated. As shown in FIG. 23 and FIG. 24, one or an appropriate number of seat air support for the chair which holds the air supply / exhaust 3 of air to be connected with the pump which is not shown in figure is seat cushion A or the seat bag B. Sealed inside) is used. In this sealed state, air is sent from the pump through the air supply / exhaust system (3) to inflate the seat cushion (A) or the seat bag (B) until the desired cushioning feel is felt, and when not in use, the air is extracted to normal condition. It is.

Referring to the invention of the method of manufacturing a chair using the air support, as shown in FIGS. 25, 26, and 27, the upper mold C and the lower mold are shown. (D) A mold is formed, and the air support for chairs (E) are placed in the center of the upper and lower molds, and the air supply / exhaust system 3 of the air support for chairs is set outside the mold.

Next, in this state, the stretchable foam material (F), for example, urethane, will be described.

1. Formulation of Urethane

Polyol: 100

Isocyanate: 40-50

Surface oxidation: heat stabilizer, foaming aid of vinyl chloride resin

Water + tertiary amine 3-4: blowing agent

Silicone foam stabilizer: 1 ~ 2

Tin catalyst: 0.2 ~ 0.4

The stretchable foamed material is injected into the mold, and the entire air perimeter of the chair air support E is covered with the stretchable foamed material, and then foamed and fixed. The physical properties of the flexible foamed material are shown as follows.

1.ASTM 52.3kg / ㎥

2. Hardness (JIS 50m / mt) 69m / mt

25% bending load 16.8kg / 314㎠

65〃 65〃

3. Tensile force (JIS) 1.23kg / ㎠

4. 145% elongation

5. Tensile Strength (ASTM) 0.97kg / ㎠

6. Resilience (JIS) 32.1%

7. Compressive residual (JIS) 3.9%

8. Repetitive Compression Residual 3.4%

Next, when the chair air support (e) is mounted independently and used for seat cushion (A) or seat bag (B) of the seat, the seat cushion (A) as shown in FIG. 28 and FIG. ) Or seat air support (E) for the seat at a suitable place of the seat bag (B), and the pipe portion of the air supply and exhaust pipe (3) passes through the seat cushion (A) or the seat bag (B), not shown. It connects with a pump and intakes and exhausts air.

Referring to the invention of a method of manufacturing a chair using another air support, Fig. 71 shows a molding frame of a conventional chair, Fig. 72 is a molding frame with an open lid, and Figs. 73 and 74 are used for the method of the present invention. The cross section of the shaping | molding die to be shown is shown, and the sheet bag completed by this is shown in FIG.

When explaining the features, the chair air support E is pre-inserted into the lower mold D as shown in FIG. 73 and molded, but the chair air support E in the lower mold D is shown in FIG. The convex part is set to make the sheet bag (B). This is also carried out in the same manner as in the case of forming the sheet cushion A. FIG. In addition, the support frame G may be set in a molding die, and then the elastic foamed material F may be injected and molded. One example of the stretchable foam material (F) at that time is as follows.

TABLE 2

The reaction temperature is about 180 ° C, the density is 35 kg / m 3, and the hardness is 15 kg.

Referring to the seventh invention, as shown in Figs. 60 to 69, as a vehicle seat equipped with the support device shown in Fig. 60, the seat cushion A, the seat back B, The head restraint portion d ₃ is integrally provided, and the seat back B swings back and forth from the connection portion with the seat cushion A. FIG. In addition, a support frame (G) serving as a skeleton of the seat cushion (A) and the seat bag (B) is formed by a pipe and a steel plate, and as shown in FIGS. 61 to 63, a flexible foam material having a required thickness ( It was constructed by covering it with the trim cover 104 of F).

The support device is a stretchable body (b ₁₎ which is stretched and operated by attaching and fixing to a predetermined position in the support frame (G) of the sheet, and supplying and exhausting the air sent from the air pump (a) described later. ), (b ₂ ), (b ₃ ), (b ₄ ), (b ₅ ) and each of the expansion bodies (b ₁ ) to (b ₅ ) directly or via an actuating mechanism, and the sheet Support boards (e ₁ ), (e ₂ ), (e ₃ ), (e ₄ ), and (e ₄ ) provided along each predetermined portion of the back surface of the flexible foam material (F) to be a surface layer member of ₅ ) and an air pump (a) for supplying air to the stretchable bodies (b ₁ ) to (b ₅ ).

Each of the stretching bodies b ₁ to b ₅ is attached to and fixed at each predetermined position of the support frame G of the sheet. Then, the air supply pipe 37 from the air pump a is branched to the required number via the branch valve 36, and these air supply pipes 37 are each stretched body b ₁ to the above-mentioned. by connecting the (b _5), partitioned by an air pump (a) branching an air valve 36 from is configured to any of the stretching member _{(b 1) ~ (b 5} ) to send air.

Each support plate (e ₁ ) to (e ₅ ) is for supporting each predetermined part of the body as described above, the support plate (e ₁ ) is in the thigh on the seating surface of the seat cushion (A) The corresponding part, the support board (e ₅ ) is the part which touches the back of the seat back (B) the back, and the support board (e ₃ ), (e ₄ ) is the thigh side of the seating surface and the waist of the back Both side portions and the support plate e ₅ are disposed on the surface of the headrest portion d ₃ . And each part which provided the support boards (e ₁ )-(e ₅ ) on the sheet surface is respectively femoral support 31 and lumbar support 32 according to each part of the body to support. ), The side support (33), 34, the head support (35).

Although the above-mentioned stretch bodies (b ₁ ) to (b ₅ ) and support boards (e ₁ ) to (e ₅ ) of each part select a structure, a surface shape and an operation configuration according to the part of the body to be supported, as it will be described later by polymerizing a plurality of the air bag body (1) stretching member (b ₁₎ ~ (b ₅₎ the configuration, the elastic member (b ₁ ~ (b ₅₎ to Suffolk Upper plate (e ₁₎ ~ (e ₅₎ a connection, by the above-described elastic body _{(b 1) ~ (b 5} ) the air fmf sent from an air pump (a) in the feed and discharge, connected to the stretching member _{(b 1) ~ (b 5} ) The support boards (e ₁ ) to (e ₅ ) have a basic configuration in which the support surfaces are mounted on and off of the sheet surface.

The stretchable bodies (b ₁ ) to (b ₅ ) are formed by using a three-layered taropoline material (T) as shown in FIG. 69. 2 sheets of thermoplastic synthetic resin sheet (g ₂ ), (g ₂ ) of 70-200 mesh fabrics woven from 50 to 100 micron-thick threads having both non-elasticity and high tensile strength, which are combined with this apo-porous material (T). ), And together, the thermoplastic synthetic resin sheets (g ₂ ) and (g ₂ ) are thermally welded to each other to form three characters (1c), (g ₂ ), and (g ₂ ) integrally. For the yarn constituting the above-mentioned wrapping material 1c, for example, polyester or polyamide is used, and thermoplastic synthetic urethane (g ₂ ) and (g ₂ ) are slightly harder than ordinary thermoplastic urethane. Resin thing is used.

While the taapoorinous material (T) of the above-described configuration is prevented from being stretched by the wrapping material (1c), it is possible to suppress the thickness of the tapoorinous material (T) itself to the extent that the flexibility of the sheet (T) is not impaired. have.

But. The airbag main body 1 formed using the tapoorin material T is less deformed when high pressure is applied to the air chamber h, and wrinkles due to lack of flexibility during expansion are generated. There is no work.

The stretchable body b ₁ and the support plate e _{1 of the} thigh support 31 are provided inside the frontmost part of the seating surface.

As described above, the stretchable body b ₁ of the femoral support 31 is cut in a substantially rectangular shape as shown in FIG. 68, and the taapoorin In addition to the polymerization of two pieces of ash (T), as shown in Figs. 64 and 65, both air bag bodies 1 are formed by thermal welding the peripheral edges thereof. These airbag main bodies 1 are polymerized, and both airbag main bodies 1 are integrally bonded by heat welding the central portion at both contact surfaces thereof, and the air chambers h1 of both airbag main bodies 1 are provided in the joint area. ) and (h1 ') are provided by providing vent holes (i ₁ ) and (i ₁ ) communicating with each other.

In addition, both of the above-described elastic body (b _1), the air bag body 1, the air bag body (1) at each end edge of the mounting projection 38 from the part 38 protruding hereinafter as well as to, at the top of the bottom of the At the edges, support protrusions 39 and 39, such as the attachment protrusions 38 and 38, are protruded and installed at the edges, and the air chamber of the air bag body 1 is located at the circumferential edge of the air bag body 1. h ₁ ) attaching and installing an air supply port 40 for introducing air into and out of the air supply pipe, and connecting the air supply pipe 37 ′ branched from the branch valve 30 to the air supply port 40. Connect via.

The attachment protrusions 38 and 38 are for attaching and fixing the stretchable body (b ₁ ) to the support frame G, and the attachment protrusions 38 and 38 are attached to a predetermined portion of the support frame G. It is fixed to the board | substrate 41 attached to the front end by the fixing fitting 12 or a screw.

Also, the support projection 39 of the air bag body 1, 39 is, the above-mentioned West Battery Upper plate (e ₁₎ intended to support contacts the surface of the air bag body (1), Suffolk Upper plate (e ₁ ) Is fixed to the fixing fittings 12 or by bonding to both ends of the back.

Above Suffolk Upper plate (e ₁₎ is made of a synthetic resin or steel plate, and also the surface formed in that natural surface matching the femoral side of the seating surface and, at the same time, in the normal time Suffolk Upper plate (e ₁₎ The surface is formed to be in contact with the rear surface of the flexible foam material (F) of the thigh support 31.

When air is supplied from the air supply port 40 of the air bag body 1, the air is vented through the air vents i ₁ and i ₁ from the air chamber h ₁ of the air bag body ₁ . It passes and flows into the air chamber h ₁ ′ of the airbag main body 1 to expand both of the airbag main bodies 1 and to expand and contract the elastic body b ₁ itself. As a result, the support plate (e ₁ ) connected to the surface of the stretchable body (b ₁ ) protrudes from the seating surface, and the thigh support part 31 of the seating surface is the stretchable body (b _1). It expands according to the amount of elongation.

The stretching bodies (b ₃ ) and (b ₃ ) of the side pots 33 on both sides of the thigh have a configuration method as shown in FIGS. 62 and 67.

The elastic material (b ₃₎ is, by the polymerization of the other apo cut out material (T) between cut into rectangular, superposed that the peripheral air bag body (1) constituted by heat-welding to each other, the long side of the of the two contact surfaces within the area of one part along the edges heat welded to bond the both air bag body (1) integrally, and the sealing portion are communicated to each other air chamber _{(h 3), (h 3} ') of the air bag body (1) It is constructed by drilling through holes (i ₃ ) and (i ₃ ).

The stretchable bodies b ₃ and b ₃ are attached to the surfaces of the substrates 13 and 13, which are standing inclined to the outside from both sides of the support frame G, with the joining side facing down. Screw the attachment protrusions 14, 14 protruding from one edge of the airbag body 1 of the telescopic bodies b ₃ and b ₃ to the surfaces of the substrates 13 and 13 described above. It is fixed by (15) and fixed to the surface of this board | substrate 13,13.

Further, the surfaces of the stretchable bodies b ₃ and b ₃ are brought into contact with the support plate e ₃ formed in accordance with the side support 33 surface of the seating surface, and both sides of the airbag main body 1. The support plate (e ₃ ) is stretched by fixing the attachment protrusions (16) and (16) protruding from the end portion of the support plate (e ₃ ) to the back surface of the support plate (e ₃ ). material _{(b 3), (b 3} ) is connected to the surface. In addition, the support plate (e ₃ ) connected to the surfaces of the stretchable bodies (b ₃ ) and (b ₃ ) is such that its surface is along the rear surface of the stretchable foam material (F) in the side support portion (33).

The air supply pipe 3 attached to one edge of the air bag main body 1 is connected to the air supply pipe 37 'branched from the branch valve 36 via a connection pipe 28, respectively. Put it.

Since the above-mentioned stretch bodies b ₃ and b ₃ are joined to portions along one edge of the air bag body 1, air is supplied to the stretch bodies b ₃ and b ₃ to supply air. When expanded in (1), the other edges of the stretchable bodies b ₃ and b ₃ are opened, and as shown in FIG. 62, the cross section is elongated so as to have a substantially V-shape. The support plate e ₃ , which is connected to the stretchable bodies b ₃ and b ₃ , protrudes so as to have an inclined angle toward the center of the seating surface, and the side support 33 surface is expanded in this manner.

Suffolk Upper plate (e ₄₎ of the as shown in claim 61 also, the sheet back (B) side Suffolk of p ort 34, elastic body (b _4), (b ₄₎ via the operating mechanism (j) the To connect.

The actuating mechanism j hangs the support shaft 18 between the shaft support pieces 20 and 20 standing up from the bearing plates 19 and 19 at both ends of the support frame G toward the sheet center. The arm plate 21 is rotatably supported by this support shaft 18, and is comprised. Then, the support plate (e ₄ ) formed by conforming to the curved surface of the side support (34) surface, the arm in the state facing the back of the stretchable foam material (F) of the side support (34), 34 part The plate 21 is fixed to the inner surface side of the tip portion.

Moreover, between the fixed surface 22a, 22a of the fixing piece 22, 22 which protruded in the L shape toward the center of the sheet | seat from the rear end part of the arm plate 21, and the bearing plates 19 and 19. The attachment protrusions 27 and 27 protruding from both ends of the airbag main body 1 on the fixing surfaces 22a and 22a by placing the elastic bodies b ₄ and b ₄ in the The fixing projections 22 and 29 are fixed to the fixing surfaces 22a and 22a as fixing fittings 12 and protruding from both ends of the airbag body 1 on the arm plate 21 side. It is fixed to the rear surface of the support plate by fixing fittings (12).

The stretching bodies b ₄ and b ₄ polymerize three air bag bodies 1, and heat-weld the center portion of the contact surface of the air bag body 1 to each air bag body 1. , The ventilation holes (i ₄ ), (i ₄ ) communicating with each of the air chambers (h ₄ ) and (h ₄ ′) (h ₄ 의) of the airbag main body 1 in the area of the joint portion. ), And the air supply unit 24 is attached to the air bag main body 1 on the fixed surface 22a side, and the air supply pipe 37 'branched from the branch valve 36 to the air supply unit 24. Is connected via the connection pipe 28, respectively.

Then, by supplying air to the expansion and contracting body (b ₄ ), (b ₄ ) of the side support 34, each air bag body (1) is inflated to extend the expansion and contraction (b ₄ ), (b ₄ ) , By pressing the rear end of the arm plate 21 to the outside to rotate the arm plate 21. In this case, the support plate e ₄ provided at the front end side of the arm plate 21 rotates toward the center of the sheet about the support shaft 18, and accordingly the side support 34 is provided. The face swells.

The stretchable body b ₂ and the support plate e _{4 of the} lumbar support 32 have the same configuration as the stretched body b ₁ and the support plate e1 of the femoral support 31. As shown in FIG. 60, as shown in FIG. 60, the back and forth boards are formed by hanging the telescopic body b ₂ composed of two air bag bodies 1 between the bearing plates 19 and 19 of the support frame G. The support plate (e ₂ ) formed by fixing to (25) and conforming to the curved surface of the lumbar support port (32) on the surface of the stretchable body (b2), and the screw or fixing fitting (12) And the air is supplied from the air vent 26 into the above-mentioned stretch body b ₂ , and the stretch body b ₂ is extended to extend the support plate e ₂ to the lumbar support 32 surface. The lumbar support 32 is formed to bulge by protruding from the lumbar support port 32.

Then, the head elastic member (b ₁₎ of the West Battery Upper 35 elastic body (b ₅₎ and Suffolk Upper plate (e ₅₎ Construction above femoral Suffolk Upper 31 and the lumbar Suffolk Upper 32 of the ( b ₂ ) and the structure of the support plate (e ₁ ), (e ₂ ), but the expansion body (b ₅ ) of the head support (35) is. The airbag main body 1 has a wide horizontal and vertical width so that the airbag main bodies 1 do not swing up, down, left and right when supporting it, and the area of the joint surface between the two airbag main bodies 1 is widened in a square shape. .

The support plate (e ₅ ) is also formed to be sufficiently large and naturally curved to conform to the hood portion. When the air is supplied into the stretchable body (b ₅ ) to expand the surface of the head support 35, It is designed to support the back of the head without shaking.

The branch valve 36 which distributes and supplies the air sent from the air pump a to each of the expansion bodies b ₁ to b _{5 of the} support units 31 to 35 described above is an air supply pipe. Five branch flow paths (not shown) are provided which branch the air flow paths (not shown) to communicate with the air pump a through 37, and each of these branch flow paths The three-way valves (not shown in the drawing) which open and close the flow path and discharge the air in the flow path to the outside are attached to each other. The operation of opening and closing of each of the three-way valves is operated by operation buttons k ₁ to k _{5. When the} desired support members 31 to 35 are expanded, the support is supported. Each air pipe in which the operation buttons k ₁ to k _{5 of the} haute portions 31 to 35 is set to the valve open position, and the air sent from the air pump a is connected to each of the branch flow paths described above. and (37 ') passing through the supplies to each of Suffolk Upper portion elastic member _{(b 1) ~ (b 5} ).

When an arbitrary support surface is expanded to a desired state, the operation buttons k ₁ to k ₅ of the support section are moved to the valve closing position to stop the supply of air.

In order to alleviate the swelling of the desired support portions 31 to 35 or to make the surface coincide with the other sheet surface in the original state, the operation buttons k ₁ to k _{2 of} the support portion described above are See the discharge position and, is performed by the Suffolk Upper portion elastic member _{(b 1) ~ (b 5} ) discharged from the branch through the inside air to the elastic member _{(b 1) ~ (b 5} ) flow to the outside.

The branch valve 36 is installed at the side of the air cushion A which the user's hand touches with the operation switch 27 of the air pump a.

In addition, although the air support apparatus mentioned above used all 7 sets of stretch body (b) and support plate (e), when the stretch body (b) and the support plate (e) are one or more sets, if several sets are installed, It is free and the installation position may be provided wherever it is a sheet surface. However, in the case where a plurality of sets of the expansion body b and the support plate e are provided, air from the air pump a must be distributed and supplied to any expansion body b so that the air support device As used for, the branch valve 36 is required.

In addition, in order to connect the support plate e to the expansion and contraction body b, the support body 31, 32, 33 and 35 of the support device can be connected to the expansion and contraction body b. It may be connected directly to the surface side, or may be connected via the operating mechanism j like the side support 34, and it selects according to a design request.

Claims (6)

The upper facing surface 1a and the lower facing surface 1b of the stretchable airbag body 1 or the entire circumferential edge of the side cloth are thermally welded and connected to either of the front and rear surfaces of the airbag body 1 described above. An air support for chairs provided by providing an air supply / exhaust system (3) for allowing air to be discharged, wherein one sheet is provided inside the air bag main body (1) including the upper facing surface (1a), the lower facing surface (1b), or the side cloth. Alternatively, each surface of the airbag main body 1, which is installed on the center line in the long side direction or the center line in the short side direction of the air bag main body 1, in which a plurality of predetermined-shaped suspension cloths 2 are installed, is provided with predetermined unevenness ( Iii) Air support for chair, characterized in that the shape. The air support for a chair according to claim 1, wherein a tapoorin material is used over part or all of the stretchable airbag main body (1) and the suspension cloth (2). 2. The air support for chair according to claim 1, wherein a breathable soft urethane foam is inserted into the air support body for a chair. The air support unit according to claim 1, wherein a part or all of the stretchable air bag main body 1 and the suspension cloth 2 are made of a tafoorin material to form an air support unit, and the breathable soft urethane in the air support unit main body. Air support for a chair, characterized in that made by inserting a foam. The air support for the chair according to claim 1, which is placed in the center of the forming frame of the seat cushion (A) or the seat bag (B) composed of the upper and lower molds (C) and (D), is stored and After discharging the air supply / exhaust system 3 of the supporter outside the molding frame, the liquid of the flexible foam material F is injected over the entire circumference of the chair air supporter, and then the stretched foam material A method for manufacturing a chair with an air support, characterized in that the liquid of (F) is foamed and fixed and taken out of the forming mold described above to form a sheet cushion (A) or a sheet bag (B). Air pumps for supplying air, new bodies (b ₁ ) to (b ₅ ) which expand and contract by supplying and discharging air sent from an air pump built-in at a predetermined position of the vehicle sheet and for electric vehicles. It is provided so as to follow the microscopic step on the back surface of the surface layer member constituting the surface portion of the sheet, and is moved forward and backward in the sheet surface direction by the stretching motion of the stretching bodies b ₁ to b ₅ described above. The stretchable body, which is composed of support boards (e ₁ ) to (e ₅ ), which is made of non-elastic and high-strength yarn, is sandwiched between two thermoplastic synthetic resins and thermally welded integrally. The airbag main body 1 is formed by enclosing the formed sheet together with two sheets of edges, polymerizing a plurality of the airbag main bodies, and adjoining surfaces of adjacent airbag main bodies. Bonding the government minutes, and air chamber of the air bag body wherein the bonding portion _{(h 1) ~ (h 5} ), (h 1 ') ~ (h 5') a vent hole (i ₁₎ in communication to each other - ( i ₅ ) The chair using the air support, characterized in that the opening is made.

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