JPH05199928A - Cushion member and production thereof - Google Patents

Abstract

PURPOSE:To provide the cushion material of an integral structure type which can save a stage for winding helical wires, etc., does not generate the squeaking sounds of springs, is simple in construction, has good air permeability, can maintain the perfect independence of the respective coil springs and enables the reutilization of used fibers and the process for production thereof. CONSTITUTION:This process for production consists in erecting and arranging the many coil springs 2 to projecting parts 3 for supporting the coil springs of a supporting plate 1 disposed within a lower mold 15 for molding in such a manner as to space the springs vertically and horizontally from each other. The vegetable fibers (more particularly, palm fibers) and/or animal fibers 5 coated with an adhesive are thereafter packed into the lower mold for molding or the adhesive is applied on the vegetable fibers, etc., after packing the fibers and thereafter, the upper mold is closed and the molds are heated to integrally adhere the respective fibers to each other. The use of a hardness regulating material is possible as well. The compounding of functional fibers, such as antimicrobial fibers, high water-absorptive fibers, etc., with the vegetable fibers, etc., is also possible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material and a method for manufacturing the same, and more specifically, it has a simple structure and is light in weight, eliminates the squeaking noise of springs, has good breathability, and is excellent in human health. TECHNICAL FIELD The present invention relates to an integral structure type cushioning material and a method for manufacturing the same. The present invention is a bed mattress, a chair,
Used for automobile sofas and other mattresses.

[0002]

2. Description of the Related Art In a conventional cushioning material such as a mattress, a plurality of coil springs arranged in rows and columns are connected to each other by a helical wire to form a plurality of spring units. An outer frame line is provided around the upper and lower surfaces of the spring, and the outer frame line and the upper surface of each spring are fixed by a connecting member. Then, the elastic body is arranged on the spring unit.

[0003]

However, in the above-mentioned conventional mattress, a step of winding a helical wire is necessary, and the helical wire may come out by being used. In addition, the outer frame line is necessary, which makes it heavy, and since each joining member is attached, the process is complicated. Furthermore, when arranging the coil springs, it is substantially difficult to change the diameter or the number of the springs to form a functional structure. In addition, since the spring unit and the elastic bodies arranged above and below the spring unit are not integrated, buttoning or the like is required in a later step, and there is a problem that the structure is complicated. . On the other hand, as the mattress material, one using foamed polyurethane is also known,
This also had the drawback of being inferior in breathability.

The present invention overcomes the above problems and can eliminate the step of winding a helical wire,
Cushion material of integral structure type with no squeaking noise of spring, simple structure, good breathability, capable of maintaining complete independence of each coil spring, and reusing used fibers, and manufacturing thereof The purpose is to provide a method.

[0005]

The method for manufacturing a cushion material according to the first to fifth inventions and the cushion material according to the sixth to ninth inventions include:
It is shown in each item of the claims.

In the present invention, "arranging a number of coil springs vertically and horizontally so as to be spaced from each other" means
Standing up each independent coil spring one by one,
This means that they are arranged vertically and horizontally with a space so that they do not touch each other. For example, as shown in (A) FIG. 15 and FIG. 16, the above-mentioned “standing and arranging” means a protrusion for coil spring support for vertically arranging a large number of vertically and horizontally directly on the support plate of the lower mold 15 for molding. A coil spring may be erected on the portion 3 (FIG. 16) or the recess 31 (FIG. 15), or (B) a coil spring supporting protrusion for vertically arranging many coil springs vertically and horizontally. Support plate 1 having a portion 3 (shown in FIG. 2) or a recess (not shown)
May be disposed in the lower molding die 15 and may be erected on the protruding portion 3 or the recessed portion. The number of the protrusions may be one (FIG. 16), two (FIG. 2) or more,
Various thicknesses and lengths are selected. Further, instead of the above-mentioned "projection or depression for supporting coil spring", a magnetic plate for supporting coil spring using a magnet may be used.

The above-mentioned "vegetable fiber" means fruit fiber using palm, areca, etc., or leaf vein fiber using manila hemp, sisal hemp, palm, etc., and one or more of them are used. be able to. These can form a high porosity suitable for a cushioning material, can also promote weight reduction, and have an effect of excellent breathability and hygroscopicity as compared with chemical fibers. The “animal fiber” refers to human hair (hair etc.), pig hair or horse hair (mane, tail hair etc.) and the like, and one or more of these can be used. When this is used, a relatively hard layer can be formed.

[0008] "Filling" vegetable fibers and the like means, for example,
The entire internal space within the spring may be filled as shown in FIG. 12 or the entire space between the inside of the spring and the adjacent springs (see FIG. 17), or as shown in FIG. And only the lower part may be filled. The former is excellent in that it exhibits a double spring action, and the latter is also sufficiently equipped with the detachment and movement preventing action of the coil spring and the excellent appearance, and the amount of the plant fiber etc. It is possible to reduce the weight and weight.
In particular, in this latter case, as shown in FIG. 3, the entire circumference of the coil spring array filled with plant fibers or the like is
An excellent appearance can be obtained by covering with a plant fiber or the like coated with an adhesive. Further, as shown in FIG. 2, not only the entire inside of the coil spring array (that is, the inside of the coil spring and all between the coil springs) but also the entire outer surface of the upper and lower sides and the entire side circumference may be covered. it can. In this case, the aesthetic appearance, integrity, double elasticity and the like of the entire cushion material are further excellent.

The above-mentioned "heating" is for bonding the fibers coated with the adhesive or the like. As the adhesive, a rubber-based adhesive that secures rubber elasticity and is inexpensive is usually used, but the adhesive is not limited to this and various known adhesives can be used. As the heating means, hot water, steam, moist heat means such as high-pressure steam, hot air, drying means such as a heating furnace, far-infrared heating, high-frequency heating, or the like can be used, or they can be used in combination. it can. Further, the heating can be performed by introducing the above-mentioned heated air or heated steam not only in the atmosphere but also in a vacuum. Further, usually, a predetermined array body (combination body) is arranged by pressing in a predetermined mold and heated. As a reference example, it is also possible to heat only the upper part or only the upper part and the lower part while pressing them with a predetermined plate-like body or belt, without particular molding. Further, it is also possible to heat the array as it is without any such thing. However,
In order to obtain a molded product having a desired shape, it is preferable to heat using a mold.

In the present invention, the "hardness adjusting material" is a resin-made plate-like or sheet-like body having a lattice or stitch structure, or a plate-like or sheet-like hard palm fiber aggregate, etc. It is to adjust the height. In addition, at least one of an antibacterial fiber, a super absorbent fiber, a deodorant fiber, a perfume fiber, and an antistatic fiber can be blended with the above-mentioned plant fiber or the like. Furthermore, an antibacterial fiber, a super absorbent fiber, and
By arranging a sheet-shaped or plate-shaped functional fiber assembly containing at least one of deodorant fiber, scented fiber and antistatic fiber, it is laminated with an adhesive and heated to a desired position. The functional fiber integrated layer can be integrally formed. The functional fiber aggregate may be composed of only the functional fibers, or may be composed of plant fibers, animal fibers, or mixed fibers containing other fibers. Also,
It may be a composite layer in which functional fiber layers made of functional fibers are laminated. In addition, functional fibers other than those described above (antifungal property, etc.) can be blended.

As the above-mentioned "antibacterial fiber", for example, a kneading type antibacterial fiber produced by kneading an inorganic antibacterial agent into a fiber raw material polymer and spinning it can be used. As this inorganic antibacterial agent, those obtained by adding and absorbing a bactericidal metal ion to zeolite, further kneaded with a simple substance of an inorganic compound having an antibacterial action, and those adsorbed on the fiber surface are used. be able to. And since these things have heat resistance, they can be heated in a later process with peace of mind.

Examples of the "superabsorbent fiber" include, for example,
Fibers and the like made of various superabsorbent polymers such as starch type, cellulose type, and synthetic polymer type can be selected and used according to the intended use. The amount of super absorbent fibers used is 10 in total of the above-mentioned plant fibers and super absorbent fibers.
It is preferable to mix 10 to 20 parts by weight with respect to 0 parts by weight. If the amount used is less than 10 parts by weight, the water absorption cannot be remarkably improved. On the other hand, if the amount used is more than 20 parts by weight, it becomes uneconomical and rather reduces the cushioning action (reduction in elastic force). ..

The above-mentioned "deodorant fiber" means a fiber having a deodorant function. Even when an odorless compound is produced by directly reacting with a malodorous substance, it may be one which plays the role of a catalyst and promotes the deodorizing reaction without directly reacting with the malodorous substance. For example, phthalocyanine is dispersed and fixed in the fiber to exert a catalytic effect. The above-mentioned "perfumed fiber" refers to a fiber in which an aromatic substance is contained in the fiber so as to be gradually released. Specifically, it refers to a material in which a main component such as a lavender is kneaded into a thick hollow fiber thread. The above-mentioned “antistatic fiber” refers to a fiber that can suppress the generation of static electricity, and is, for example, one in which conductive carbon particles are mixed with a material polymer.

[0014]

EXAMPLES The present invention will be specifically described below with reference to examples. Example 1 In this example, as shown in FIGS. 1, 2, 7, 17, and 18, a cushion material for a mattress for a bed is manufactured. A supporting board disposed on the bottom plate of the lower molding die 15 [provided with a large number of coil spring supporting projections 3 for vertically arranging coil springs and ventilation holes 16]. )] 1, 234 coil springs (for example, drum-shaped, 5 windings, diameter of both sides about 65 mm, diameter of central part about 40 mm, wire thickness about 2 mm, total height 140 m)
m) 2 are erected vertically and horizontally [for example, 9 rows × 26 pieces (1 row)] while locking the coil springs 2 to the coil spring supporting protrusions 3, respectively. Prepare 4. Here, as shown in FIGS. 1 and 2, the coil spring supporting protrusions 3 are needle pins that are erected on the support board 1 at an interval slightly smaller than the ring diameter of the coil spring 2 so as to stand on one coil spring 2. Is becoming Therefore, the individual coil springs 2 can be installed upright by being inserted into the pair of coil spring supporting projections 3 and 3 without being connected to other coil springs by helical wires or the like. The lower mold 15 is also provided with holes so as to communicate with the ventilation holes 16 provided in the support board 1.

In the present embodiment, the coil spring supporting projections 3 are provided on the support board 1 so that the coil springs 2 and 2 which are adjacent to each other are spaced from each other by 5 to 50 mm, so that the coil springs do not come into contact with each other. It has a structure. Then, 234 of these coil springs are vertically assembled to form the coil spring array body 4. Inside this coil spring array 4, and further to the side,
Palm fiber (vegetable fiber, usually used for beds,
(Fiber length: about 70 to 200 mm) While unraveling the rope-like material made by twisting 5, unfold the palm fibers 5 and then cover with a rubber-based adhesive (natural rubber emulsion or synthetic rubber emulsion). It was This filling may be performed by spraying palm fibers together with the air flow, or may be performed manually. It should be noted that the palm fibers coated with the adhesive may be filled. These are 160-200 ℃ in the mold
At about 30 to 60 minutes, and the plant fibers were adhered to each other with an adhesive to be integrally molded to manufacture the cushioning material shown in FIG.

Here, as shown in FIG. 2, before the coil spring 2 is erected in advance, plant fibers are spread over the roots of the coil spring supporting protrusions 3, and then an adhesive is applied to the bed. It is also possible to form a layer to be the surface layer 71. After that, each coil spring 2 is erected while being locked to the coil spring supporting projection 3, and the plant fibers 5 are filled and bonded to the inside and the upper part of the coil spring array 4 composed of this coil spring assembly. By spraying and covering with the agent and heating them, the bed surface layers 61, 7
1 and a coil spring array 4 filled with plant fibers 5
A cushion material (shown in FIG. 18) that is configured integrally with is formed.

Further, before the coil spring 2 is erected as shown in FIG. 3, a nonwoven fabric 7 made of punched vegetable fiber is provided.
Is laid on each root of the coil spring supporting protrusion 3, an adhesive is applied to form a layer which becomes the bed surface layer 71, and then the coil spring is erected and punched on the upper surface thereof. It is also possible to cover with a non-woven fabric 6 made of vegetable fibers and then apply an adhesive to this so that the bed surface layer 61 can be formed at the time of thermoforming. The cushion material produced in this case is shown in FIG. In this case, instead of one of the non-woven fabrics 6 and 7, desired plant fibers or the like may be spread.

In these non-woven fabrics, the palm fibers are made relatively thick by a mechanical joining method by soft punching. The non-woven fabric made of soft-punched palm fibers has a higher density than the plant fibers filled in the coil springs and also has a surface finish, which is excellent in the texture, feel, smoothness of the surface, etc. If you cover it, you can construct a cushioning material for beds. Of course, depending on the situation, a thin urethane foam sheet may be attached to the surface of the bed surface layer (61 and / or 71). This is to get a comfortable feel.

In this cushioning material, the coil spring array body is covered with the palm fibers, and they are integrally formed. Further, not only the frame line and the retaining clip but also the helical line are unnecessary. The weight can be reduced and the manufacturing thereof is extremely simple. In particular, plant fibers made of palm fibers have a high porosity and can further reduce weight and ensure excellent air permeability. The cushion material integrally formed by covering the coil spring with such a palm fiber can maintain a stable state without losing its shape, and exhibits strong durability.

When the surface layer of the cushion material is made of a non-woven fabric made by soft punching, when it is used as a cushion material for beds or the like, it has an excellent feel and has good breathability and is spacious. You can relax and have a good night's sleep. In the non-woven fabric made of palm fibers as in this embodiment, since it has an elastic structure and a small compression residual strain, the waist is less liable to stick and the cushioning material is also excellent in shape retention. Regarding the cushioning property, the palm fibers having an elastic action are also present in the coil spring, and the elasticity of the palm fiber part is added to the elasticity of the coil spring part (double elasticity). In particular, the cushioning effect is slightly stiff, and the cushioning effect is highly uniform as a whole.

Further, since the coil springs are vertically arranged so as to be spaced from each other and the coil springs do not rub against each other, there is no squeaking noise generated from the coil. In addition, the step of constructing a plurality of coil spring units connected by a helical wire is omitted, and the coil spring is purchased separately, which not only reduces the cost but also facilitates the stock management of the coil spring. In particular, since a single coil spring can be freely installed upright according to the design, a cushion material having a desired shape corresponding to the cavity shape of the mold can be easily manufactured. Further, in the cushioning material according to the present invention, the coil springs are separated during the incineration disposal, so that the processing thereof is remarkably reduced. Furthermore,
Since the used protruding portion for supporting the coil spring is composed of a thin pin, no space or unevenness is formed inside or on the surface of the cushion material, and the surface is excellent in appearance.

In this embodiment, when the bed surface layer is formed on the upper surface or the lower surface of the coil spring array body, the non-woven fabric is laid, but instead of the non-woven fabric, the palm fiber may be laid as it is. Further, although the adhesive is applied after filling the palm fibers or the like, the palm fibers previously coated with the adhesive may be filled or the like. Further, except for the bed surface layer portion of the cushion material, it is also possible to fill the cut fibers and the like discharged from the manufacturing process as the palm fibers to be used. This is for recycling and effective use of resources.

Example 2 In this example, as shown in FIG. 4, palm fiber (vegetable fiber)
The hardness adjusting material 9 is arranged on the upper surface of the coil spring array 4 which is filled and arranged inside and on the upper and lower surfaces, and the cushion material, which is an integrally molded product shown in FIG. To do. This hardness adjusting material 9 is shown in FIG.
As shown in, the fiber adhesive coating 13 is integrally formed inside. Here, the fiber adhesive coating 13 is
An adhesive is applied to the palm fibers and is formed integrally by adhering the palm fibers to each other by heating. In this embodiment, the hardness adjusting material 9 is applied before the adhesive is applied.
Is placed inside the palm fibers, but the palm fibers are soft punched to form a layered non-woven fabric, a hardness adjusting material 9 is arranged between the layers, an adhesive is applied, and the layers are integrated by heating. It may be configured as.

The hardness adjusting material 9 has a mesh of 20 to 40 m.
m, the width of the constituent line portion is 3 to 5 mm, and the thickness is 2 to
A sheet-like material (insulator) having a 4 mm resin lattice can be used. The material of the hardness adjusting material, the size of the mesh, the line width, etc. can be variously changed and used depending on the purpose and application. This cushion material has the effects of the first embodiment, and the hardness of the cushion is appropriately adjusted,
Suitable as a bed cushion. Further, even when such a hardness adjusting material is used, since it has a mesh, it is completely fixed between the adhesive fibers and has excellent integrity.

It should be noted that another sheet-like body can be arranged in a layered manner between the coil spring array body filled with the plant fibers and the hardness adjusting material. It is also possible to dispose a hardness adjusting material on the coil spring array and to dispose another sheet-like body on the upper surface thereof. As the "other sheet-like body", palm fibers made of soft-punched tropical plants such as palm and palm are usually used. This is because the sheet-like body obtained by soft punching the palm fibers has excellent elasticity, has a property of not easily causing waist fatigue, and has excellent shape retention.

Example 3 In Example 1, all the palm fibers were used, but in this Example, mixed fibers prepared by blending the palm fibers and the antibacterial fiber were used. Others were the same as in Example 1 to produce a cushioning material for mattresses for beds. Here, in this example, a mixed fiber was prepared in which the antibacterial fiber was mixed at a ratio of 30 to 50 parts by weight with respect to a total of 100 parts by weight of the palm fiber and the antibacterial fiber. The antibacterial fiber used in this example is obtained by kneading an inorganic antibacterial agent into polyester fiber (fineness 2 denier × 51 mm). This cushion material also produces no bad odor and has the same effect as that of Example 1. Further, since it contains 30 to 50 parts by weight of antibacterial fiber, it is obvious that it exhibits an antibacterial effect and has a high function. It can be called a health cushion.

In this embodiment, the antibacterial layer 12 is limited to the surface layer of the cushion material as shown in FIG. Further, a mixed fiber obtained by mixing palm fiber and antibacterial fiber was used for the surface layer of the cushion material, but a sheet-shaped functional fiber aggregate was separately composed only of the antibacterial fiber, and this was used as a cushion material. You may laminate | stack on the surface using an adhesive agent and may integrally form by heating.

Example 4 In this example, instead of the palm fiber used in Example 1, a mixed fiber composed of the palm fiber and the superabsorbent fiber was used, and the heating temperature was 120 to 140 ° C. Heating time 3
A mattress cushioning material for beds was manufactured in the same manner as in Example 1 except that the time was 0 minutes to 1 hour.

Here, in this embodiment, the superabsorbent fiber (hydrolyzate of acrylic fiber, 5 denier, 51 mm, 51 mm) was used in a ratio of 10 to 30 parts by weight based on 100 parts by weight of the total palm fiber. ) Was mixed (FIG. 1).
4). According to this, it is possible to improve the water absorption capacity of the Kwon material, the ammonia adsorption performance, the comfort of use, and the like, which is extremely useful for human health. Also in this embodiment, the water absorption layer 12
14 is limited to the surface layer of the cushion material as shown in FIG. here,
At least one of a deodorant fiber, a scented fiber and an antistatic fiber may be blended in place of the super absorbent fiber used in this example. Further, instead of using the mixed fiber composed of the palm fiber and the super absorbent fiber, a functional fiber aggregate such as the super absorbent fiber is separately configured, and the functional fiber aggregate is adhered and fixed to the surface of the cushion material to be integrated. May be turned into.

The present invention is not limited to the specific examples described above, and various modifications may be made within the scope of the present invention depending on the purpose and application. That is,
The shape and size of the coil spring, the thickness of the wire used, etc.
The size of the coil spring array, the presence / absence of lamination, the type of vegetable fiber, the packing density, etc. can be selected variously depending on the purpose and application. Further, if the bed surface layer is to be made thick, any number of layers may be laminated, or the thickness may be made thick.

Further, in the cushion material and the method of manufacturing the same according to this embodiment, the packing density can be changed by the amount of the adhesive used, the length of the palm fiber, and the like, and the wire of the coil spring to be arranged can be changed. The cushioning property can be changed by the diameter and the double coil.
Therefore, the portion of the central portion where the person lies down may be a hard cushion portion, and the surrounding portion may be a slightly soft cushion portion. The cushion material is not limited to the bed cushion material, but may be an automobile cushion material as shown in FIG. 10 or the like, and can be freely designed by using a mold according to the target shape. Also in FIG. 10, the a portion can be made hard and the b portion can be made soft. In this case, at the portion a, the palm fibers used in the above examples are hard punched and hardened, while at the portion b, the softness is obtained by soft punching or filling the palm fibers as they are. Can be given.

Further, these hardness adjusting materials can be arranged in a desired portion to be hardened. Even in this case, the hardness adjusting material is integrally fixed and held in the fiber adhesive coating. Further, as shown in FIG. 11, an assembled body in which cushioning materials having different hardnesses are manufactured and arranged according to the purpose, for example, the centrally arranged one (A) is more than the other one (B). It can also be a hardened configuration.

Further, another member (for example, a soft palm fiber sheet, a hard palm fiber sheet, a urethane sheet, needle punched felts, or the like) is formed on at least one of the upper and lower surfaces of the cushion material manufactured in each of the above inventions. Body sheets, etc.) can be adhesively laminated in various combinations. For example, as an example, a hard cushion of 1 to 10 mm (preferably 3 to 5 mm) on the base cushion material (for example, FIG. 17 or FIG. 18) manufactured in Example 1, and 10 to 20 mm ( g / cm ³ ;
Urethane sheet of 0.01 to 0.30 g / cm ³ or 20 to 30 mm (density: 0.03 to 0.05 g / c)
The soft palm sheet of m about ³⁾ may be configured to have adhered. As the adhesive, for example, a synthetic rubber solution adhesive or the like can be used. Further, the outermost surface may be covered with a cloth sheet or the like. In this case, the atmosphere can be easily changed by changing the sheet according to the purpose.

[0034]

As described above, according to the cushioning material and the method of manufacturing the same of the present invention, the cushioning material has a simple structure, is light in weight, and is easy to adjust in partial hardness. be able to. Further, since the individual coil springs are separated from each other without a frame line, a helical line, etc., the squeak noise of the springs due to the rubbing of the coil springs and the like is eliminated and comfort is provided. Further, since plant fibers made of palm fibers or the like are used, the porosity can be increased, the weight can be reduced, and the excellent air permeability can be secured. In particular, these fibers have excellent water absorbency and hygroscopicity, and also have excellent surface feel and smoothness, and if they are covered with sheets or the like as they are, a clean cushion material for beds or the like can be formed. And
Since a nonwoven fabric having an elastic structure using such a fiber does not have a flat waist, it is excellent in shape retention and can maintain safety and comfort. Also, used fibers can be used as used fibers,
In this case, resource reuse is excellent and cost reduction can be achieved.

Further, since the individual coil springs are erected independently, the cost can be reduced by purchasing the coil spring alone, and the space can be saved for inventory management. In particular, when the cushion material is incinerated and discarded, since the coil springs can be collected in a disjointed state, the disposal can be significantly facilitated. In addition, when molding is performed, a cushion material having a desired shape corresponding to the shape of the cavity can be easily manufactured. When the entire coil spring is filled with the palm fiber, it exhibits double elasticity and thus has an excellent cushioning effect, and in particular, shows a rather hard cushioning effect and a cushioning effect which is rich in uniformity as a whole.

Further, in the case of the cushion material containing the antibacterial fiber, generation of mites, Escherichia coli and the like can be suppressed, so that it is comfortable and excellent in human health. In the case of a cushion material containing super absorbent fibers, it absorbs and removes water discharged by humans and water in the environment, and is therefore similarly comfortable and good for health. Similarly, a cushioning material containing deodorant fibers, scented fibers, antistatic fibers, etc. is excellent in maintaining health.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a support plate having a protruding portion for supporting a coil spring used in a first embodiment.

FIG. 2 is an explanatory view showing a state in which a coil spring is arranged in the coil spring supporting ridge shown in FIG. 1 and vegetable fibers are filled therein.

FIG. 3 is a schematic explanatory diagram illustrating a method for manufacturing a cushion material according to the first embodiment.

FIG. 4 is a schematic explanatory view showing a method for manufacturing a cushioning material in Example 2.

FIG. 5 is a schematic explanatory view showing a method of manufacturing a cushioning material in Example 3.

FIG. 6 is a schematic explanatory view of a method for manufacturing a cushioning material showing another aspect of the third embodiment.

FIG. 7 is a partial explanatory cross-sectional view of the cushion material manufactured in Example 1.

FIG. 8 is a partial explanatory cross-sectional view of a cushion material manufactured in Example 2.

FIG. 9 is a partial explanatory cross-sectional view of a cushion material manufactured in Example 3.

FIG. 10 is a perspective view of a cushion material for an automobile.

FIG. 11 is an overall perspective view of an assembly body in which five cushion materials are combined.

FIG. 12 is a partial explanatory cross-sectional view showing a state where vegetable fibers are filled only in the coil spring.

FIG. 13 is a partial explanatory cross-sectional view showing a state where the upper part and the lower part of the internal space of the coil spring are filled with vegetable fiber.

FIG. 14 is a partial explanatory cross-sectional view of a cushioning material having an antibacterial action (high water absorption) used in Example 4 (or Example 5).

FIG. 15 is an explanatory diagram showing a state in which a coil spring is arranged in a depression portion for supporting a coil spring provided in a lower mold.

FIG. 16 is an explanatory view showing a state in which a coil spring is arranged on a coil spring supporting ridge portion showing another embodiment.

FIG. 17 is a partial explanatory cross-sectional view of another cushion material manufactured in Example 1.

FIG. 18 is a partial explanatory cross-sectional view of another cushion material manufactured in Example 1.

[Explanation of symbols]

1; Support board, 2; Coil spring, 3; Coil spring supporting projections, 4; Coil spring array, 5;
Vegetable fiber (palm fiber), 6, 7; Non-woven fabric (fiber aggregate), 61, 71; Bed surface layer, 9; Hardness adjusting material (insulator), 10; Sheet-like material, 12; Antibacterial layer (water absorbing layer) , 13; Fiber adhesive coating.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B29L 31:58 4F

Claims (9)

[Claims] 1. A plant fiber in which a large number of coil springs are vertically arranged in a molding lower mold so as to be vertically and laterally spaced from each other, and then (A) an adhesive is applied to the molding lower mold. And (B) at least one of vegetable fiber and animal fiber, and then an adhesive is applied, and then the upper mold is closed and heated to space between the fibers. A method of manufacturing a cushioning material, which comprises integrally bonding. 2. At least one of vegetable fiber and animal fiber coated with an adhesive is spread over each root of the coil spring supporting protrusion, or at least one of vegetable fiber and animal fiber. The method for manufacturing a cushioning material according to claim 1, wherein a nonwoven fabric, one of which is punched and coated with an adhesive, is laid. 3. A (A) adhesive is provided on at least the upper surface, the lower surface, and the inside of the coil springs of a coil spring array consisting of a plurality of coil springs arranged upright so as to be vertically and horizontally spaced from each other. At least one of the applied plant fiber and animal fiber is filled, or (B) at least one of the plant fiber and animal fiber is filled and then the adhesive is uniformly applied, and then the plant fiber and the A hardness adjusting material having a lattice or a mesh is disposed on at least one of the upper surface and the lower surface of the coil spring array body filled with at least one of animal fibers, and at least one of these array bodies is provided. At least one of vegetable fiber and animal fiber coated with an adhesive is spread on the upper surface and the lower surface, or among the vegetable fiber and the animal fiber. Laying at least one of which is coated with and adhesive is configured by punching a nonwoven, manufacturing method of a cushion member, characterized in that molded These were heated together. 4. At least one of the plant fiber and the animal fiber is further blended with at least one of antibacterial fiber, super absorbent fiber, deodorant fiber, fragrance fiber and antistatic fiber. The method for producing a cushioning material according to claim 1, wherein: 5. A sheet or plate containing at least one of antibacterial fiber, superabsorbent fiber, deodorant fiber, perfume fiber and antistatic fiber on at least one of the upper surface and the lower surface of the cushion material. The functional fiber aggregates in the form of a strip are arranged, laminated with an adhesive, heated, and integrally molded.
3. The method for manufacturing the cushion material according to item 3. 6. A plurality of coil springs arranged vertically and horizontally so as to be spaced from each other, and a plant fiber integrally formed with an adhesive agent so as to fill and cover the coil springs. And a fiber-adhesive coating body which is made of at least one of animal fibers and which has an adhesive heated to integrally bond the fibers, and a cushion material. 7. A hardness adjusting material having a lattice or a mesh is disposed inside a fiber adhesive coating portion located on at least one of the upper surface and the lower surface of the coil spring array, and the hardness adjusting material is arranged. 7. The cushion material according to claim 6, wherein the coil spring array and the fiber adhesive coating are integrally formed. 8. At least one of the plant fiber and the animal fiber is further blended with at least one of an antibacterial fiber, a super absorbent fiber, a deodorant fiber, a perfume fiber and an antistatic fiber. The cushioning material according to Item 6 or 7. 9. A functional fiber containing at least one of an antibacterial fiber, a super absorbent fiber, a deodorant fiber, a perfume fiber and an antistatic fiber on at least one of the upper surface and the lower surface of the cushion material. The cushioning material according to claim 6 or 7, wherein an integrated layer is formed.