JPH1057198A - Mat for automotive sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve hygroscopicity and deodorization functions by superposing air permeable and flexible outside layer materials to form plural closed spaces and housing inside layer materials formed by juxtaposing bags sealed with charcoal grains into these spaces. SOLUTION: Thin-film layers 3 consisting of non-woven fabrics having good slipperiness are formed on the inside surfaces of cushion materials 2 formed on the inside surfaces of mat fabrics 1. A pair of the mat fabrics 1, cushion materials 2 and thin-film layers 3 integrally subjected to quilting are disposed to face each other and the closed space parts 14 segmented to a rectangular shape in the transverse direction of the mat fabrics 1 are formed by seams 4 sewn at specified intervals. The inside layer materials 5 juxtaposed with the bags sealed therein with the charcoal grains C are respectively inserted into the space parts 14 and peripheral edges are sewn. Since the structure obtd. by inserting the inside layer materials 5 respectively into the plural independently formed space parts 14 is adopted, the inside layer materials 5 are evenly dispersed and arranged over the entire part of the mat. The gathering of the inside layer materials 5 at one point or the deviating of the inside layer materials is thus averted even if the mat receives strong vibration or is moved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat used in an automobile seat.

[0002]

2. Description of the Related Art When sitting on a seat of an automobile, it is often the case that a cushion or the like is laid and a person sits down on it. For this reason, various types of cushions have been conventionally developed and sold, and their designs, functions, materials, and the like are also diverse.

Further, conventional cushions have a structure in which a natural material such as cotton or wool or a synthetic resin foam such as sponge is covered with a sheet material such as cloth or nonwoven fabric.
It has appropriate elasticity, flexibility, and slight hygroscopicity according to the purpose of use.

[0004] Therefore, when sitting on the seat of an automobile, by using these cushions, a certain effect is obtained such that the seat is hardly tired even if the seat is kept for a long time, and the waist and buttocks are not hurt.

[0005]

By using a conventional cushion, effects such as reduction of fatigue and prevention of low back pain can be obtained. It often absorbs the smell of cigarettes and gives off foul odors, so it tends to be dirty.

Also, since microorganisms such as molds and ticks easily propagate in the cushion that has absorbed sweat and dirt, these dead bodies and excrement are radiated from the cushion into the vehicle.
It can also cause allergic diseases.

An object of the present invention is to provide a mat for an automobile seat having a moisture absorbing property, an adsorbing property, a deodorizing function and an effect of promoting blood circulation of a human body. The purpose is to improve work efficiency.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vehicle seat mat according to the present invention comprises a pair of outer layers having air permeability and flexibility, which are sewn together and sewn. A plurality of partitioned independent spaces are formed, and inner layer materials formed by arranging non-woven bags filled with crushed charcoal grains are respectively accommodated in the spaces, and a peripheral portion of the outer layer material is sewn. .

[0009] Charcoal produced by steaming oak, oak, larch, etc. is used not only as a fuel, but also has a deodorizing effect, a humidity control effect, and various effects by far-infrared rays using a human body temperature as a heat source. ing. Therefore, the present invention focuses on the adsorption and deodorization effects of charcoal, and uses them for automobile seat mats.

[0010] That is, by incorporating a nonwoven fabric bag in which crushed charcoal particles are enclosed in a mat for an automobile seat, the bag has a function of absorbing moisture, absorbing and deodorizing. Furthermore, since charcoal also has a far-infrared emission function, sitting on the vehicle seat mat of the present invention has the effect of promoting blood circulation.

[0011] Further, the mat for an automobile seat of the present invention comprises:
Since the outer layer material has flexibility and the inner layer material is accommodated in each of the independent space portions, it can be bent at the sewing portion. For this reason, the vehicle seat mat can be bent at an arbitrary sewn portion into an L shape, and used in accordance with the shape of the seat. Further, the vehicle seat mat of the present invention itself can be used in a state of being mounted on or built into a vehicle seat.

In the vehicle seat mat of the present invention, a plurality of independent spaces partitioned between the outer layer materials are formed by overlapping and sewing a pair of air-permeable outer layer materials, and each of the inner layers is formed in these spaces. Since the outer layer material is sewn at the periphery of the outer layer material, the inner layer material is evenly distributed between the outer layer materials. Also, since each space is a space independent of other spaces, the inner layer material moves even when the car seat mat is used upright or when the car seat mat receives strong vibration or moves. There is no gathering in one place or bias.

Further, since the inner layer material has a structure in which nonwoven bags filled with crushed charcoal particles are arranged side by side, the charcoal particles are uniformly distributed in each space formed between the outer layer materials. For this reason, even when the vehicle seat mat is used upright, or when the vehicle seat mat is subjected to strong vibration or moves, the charcoal particles are not concentrated on one place or biased.

Here, various sizes of the charcoal grains to be used can be considered. According to the tests of the present inventors, the excellent effects such as the deodorizing effect and the humidity control effect of the charcoal are as follows. It has been found that rather than powdered charcoal, granular charcoal having a particle diameter of 1 to 3 mm, which is chamfered after being crushed by a crusher, is more excellent.

[0015] For a clear reason, we have to wait for future research, but powdered charcoal has a particle size of 1 to 3 mm.
It is presumed that the porosity decreases as compared with the granular charcoal, and that the powdered charcoal adheres to each other to reduce the contact area with the outside air. In addition, it has been found that powdered charcoal has a poor usability and is halved in effect because the absorbed moisture and the powdered charcoal are easily mixed together to form a brim-like shape.

Therefore, the charcoal particles have the following effects in terms of the adsorption effect.
A material having a particle size of 1 to 3 mm, which is chamfered after being crushed by a rotary crusher, is used. If it is powdered charcoal, the porosity decreases, and the adsorption power of moisture and odor decreases,
In addition, when the particle size increases, the adsorption area decreases and the adsorption force decreases, so the particle size in the above range is desirable. Note that 11
Ubame oak charcoal carbonized at a high temperature of about 00 ° C. is hard and is suitable because it can maintain a particle size of 1 to 3 mm without being powdered even after long-term use.

When using non-pulverized charcoal particles, the charcoal particles have corners on the surface of the charcoal particles as compared with the powdered charcoal particles. There is a risk that the non-woven fabric will be broken by the corner and leak out. In addition, since local pressure is applied as compared with the case where powdered charcoal is used, there are difficulties in sitting comfort and touch.

Therefore, the charcoal grains used are crushed by a rotary crusher to a particle size of about 3 to 7 mm, and then chamfered so as to eliminate sharp corners.
The outer layer material of the automobile seat mat is formed by integrally quilting the mat fabric and the cushion material.

The cushioning material provided between the inner layer material containing the charcoal grains and the mat fabric absorbs and disperses local stress due to the corners of the charcoal grains, thereby effectively preventing damage to the inner layer material. To improve sitting comfort and usability. In addition, even if the inner layer material is damaged, the leaked charcoal particles will be enclosed in the space defined by the cushioning material, and the charcoal particles will leak out of the mat fabric, or directly on the back of the mat fabric. The corners of the charcoal grains do not come in contact with each other and do not impair sitting comfort and usability.

Here, as the cushioning material, elastic materials such as cotton, non-woven cotton, and rubber sponge can be used, but there is no leakage of the charcoal particles and the elasticity of the waist is high. A sponge such as a high-density polyurethane foam which is excellent in usability is desirable. The sponge made of high-density polyurethane foam has a special structure that is breathable and does not allow fine powder to pass through, so that charcoal particles do not leak.

On the other hand, when manufacturing the mat for an automobile seat of the present invention, in order to improve the efficiency in the manufacturing process, a pair of outer layer materials are sewn at a predetermined interval, and charcoal is put in the space formed thereby. A method of inserting the enclosed inner layer material is conceivable, but in this case, if the above-described cushion material is used, the cushion material and the inner layer material are not easily slipped, and the insertion efficiency is very poor.

Therefore, in the present invention, a thin film layer in which the inner layer material is slidable is formed on the inner surface of the cushion material with which the inner layer material contacts. By forming this thin film layer, the frictional force when inserting the inner layer material into the space is reduced, and the insertion efficiency is greatly improved. In particular, when using a sponge such as high-density polyurethane foam as the cushioning material,
The effect of reducing the frictional force by the thin film layer is remarkable.

The thin film layer needs to be made of a slippery material and have air permeability.
A linen cloth or a synthetic fiber cloth can be used, but a thin nonwoven fabric is desirable in terms of strength, hygiene, and price.

By laminating the thin film layer made of the nonwoven fabric or the like together with the mat fabric and the cushioning material and integrally quilting the same, it is possible to manufacture without a significant change in the working process, and furthermore, the inner layer in which the charcoal grains are encapsulated. The material can be inserted efficiently, and the work efficiency of the mat manufacturing process can be improved.

Further, in the vehicle seat mat of the present invention, when the mat is used, a fixing belt for fixing the mat to the vehicle seat is detachably attached to a peripheral portion of the sewn outer layer material. I have. As a means for detachably attaching, a hook-and-loop fastener or a snap hook can be used.

By making the fixing belt detachably attachable, the belt can be replaced according to the size of the sheet, and if the belt is damaged, it can be replaced with a spare belt. If one side becomes dirty or damaged, you can turn the mat over and replace the belt.

[0027]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a partially cutaway perspective view showing an automobile seat mat according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG.

In these figures, 10 is a mat for an automobile seat (hereinafter simply referred to as a mat), 1 is a mat fabric for forming an outer layer, and 2 is a high-density polyurethane foam cushion material provided on the inner surface of the mat fabric 1. is there. Further, a thin film layer 3 made of a non-woven fabric having good slip properties is formed on the inner surface of the cushion material 2. These, mat cloth 1,
The cushion material 2 and the thin film layer 3 are integrally quilted.

Reference numeral 4 denotes stitches sewn at regular intervals with a pair of quilted mat fabric 1, cushion material 2, and thin film layer 3 facing each other. It forms an independent space section 14 partitioned into a rectangular shape. Since the mat 10 can be bent at the seam 4, it can be used by bending it into a free shape. For example, the mat 10 is bent into an L shape as shown in FIG. Can also.

The plurality of space portions 14 independently formed in the mat 10 are crushed by a rotary crusher to a particle size of 3 to 7 mm, and then chamfered.
The inner layer material 5 having the bag bodies 5a in which the charcoal granules C are enclosed is inserted, and the periphery is sewn. Since the inner layers 5 are inserted into a plurality of independently formed spaces 14, the inner layers 5 are evenly distributed over the entire mat. Even if it is performed, the inner layer material 5 does not gather in one place or is not biased.

As shown in the perspective view of FIG. 4, the inner layer material 5 forms a bag 5a, which is an independent storage space, in a nonwoven fabric continuous in the longitudinal direction. C is enclosed. When the inner layer material 5 has such a structure, the charcoal grains C can be evenly arranged in each of the spaces 14 without biasing, so that the charcoal grains C can be evenly dispersed throughout the mat. Thereby, even when the mat member 10 vibrates or moves during use, the charcoal particles C do not concentrate or become unbalanced in one place. Moreover, the operation of enclosing the charcoal particles C in the bag body 5a can be automated by a machine.

When the bag body 5a constituting the inner layer material is broken, the leaked charcoal particles C are sealed in the space 14 defined by the cushion material 2 and the seam 4. It is a material that has air permeability and does not allow fine powder to pass through it so that it does not leak to the outside in the folded state. In addition, the thin film layer 3 not only reduces the frictional force when the inner layer material 5 is inserted into the space to improve the slip, but also when the charcoal particles C leak, the charcoal particles C are directly applied to the cushion material 2. It also has the role of preventing contact. Thereby, the bag body 5a
Even if the charcoal particles C are leaked due to the damage, the thin film layer 3 prevents the cushion material 2 from being damaged.

Here, the manufacturing process of the mat 10 will be described. First, as described above, the mat fabric 1, the cushion material 2, and the thin film layer 3 are overlapped, and quilting is performed on the whole. Then, a pair of the processed members are arranged so as to face each other such that the thin film layer 3 is on the inner side, and the stitches 4 are formed at a slightly wider width than the inner layer material 5 and at equal intervals in one direction. Then, as shown in FIG. 4, the inner layer material 5 formed by arranging the bag main bodies 5 a in which the charcoal grains C are sealed is inserted into the rectangular space 14 formed by the stitches 4.

At this time, in order to reduce the frictional force when inserting the inner layer material 5 into the space portion 14, the slidable thin film layer 3 is formed, so that the inner layer material 5 can be used as the cushion material 2 having poor slipperiness. It can be inserted efficiently without direct contact. Thereafter, the periphery of the mat fabric 1 is sewn to complete the mat 10 as shown in FIG.

In the mat 10, the local stress caused by the corners of the charcoal grains C is absorbed and dispersed by the cushioning material 2 provided between the inner layer material 5 containing the charcoal grains C and the mat fabric 1, whereby In addition, it is possible to effectively prevent damage to the bag body 5a constituting the inner layer material 5 and to improve the usability.

Further, if the bag body 5 constituting the inner layer material 5
Even if a is damaged, the leaked charcoal particles C are sealed in the space 14 defined by the cushioning material 2 and the seam 4, and the charcoal particles C leak out of the mat fabric 1. Also, the corners of the charcoal grains C do not directly contact the back surface of the mat fabric 1 to impair the feeling of use.

As described above, even when the charcoal particles C are used, the bag main body 5a constituting the inner layer material 5 is less likely to be damaged, and the feeling of use is good, and even if the bag main body 5a is damaged, the charcoal particles C leak outside. Because of this, it is possible to use a high-temperature fired hard charcoal having high adsorption effect and far-infrared effect.

Returning to FIG. 1, the fixing belt 6 is detachably attached to the mat 10 at four positions on the peripheral edge.
The fixing belt 6 attaches one end of a cloth belt body 6a used for a seat belt to a peripheral portion of the mat body via a hook-and-loop fastener 6b, and further, is attached to the back of an automobile seat (not shown). The other ends of the two left and right fixing belts 6 of the belt main body 6a are joined to each other via the hook-and-loop fastener 6b, so that the vehicle seat mat 10 is formed.
Is fixed to a car seat.

Since the fixing belt 6 can be detachably attached to the mat body, it can be replaced with a belt having a different length according to the size of the vehicle seat, or replaced with a spare belt when the belt is damaged. Or you can. In addition, when one side of the mat body becomes dirty or damaged due to long-term use, the mat can be turned over, and the belt can be changed in direction to replace the mat, so that a clean surface of the mat body can be used again.

Next, a method of using the mat 10 will be described with reference to FIG. FIG. 5 is a perspective view showing a use state of the mat 10.

FIG. 5 shows a state in which the mat 10 is bent into an L-shape, placed on the front seat 11 of the automobile, and the fixing belt 6 is turned to the back of the backrest and the back side of the seating surface. Is fixed to the sheet 11. If the mat 10 is used, the sweat or body odor of the driver or passenger, the odor in the room, etc. can be effectively absorbed by the charcoal particles C contained in the inner layer material 5, so that the interior of the vehicle is kept comfortable and clean. It is. In addition, since the mat 10 has a blood circulation promoting function, low back pain caused by riding for a long time,
It also has the effect of preventing muscle pain.

FIG. 5 shows a state in which the mat 10 is mounted on the front seat 11, but since the mat 10 is detachable, the rear seat 15 and the like can be used freely. In this case, the mat 10 can be prevented from being locally soiled or damaged by occasionally changing the bent portion during use, or changing the top and bottom or the front and back. Further, the mat 10 itself may be mounted on the front seat 11 or the rear seat 15 or may be built therein.

Next, other uses of the mat 10 will be described with reference to FIGS. 6 and 7 are perspective views showing each use state.

FIG. 6 shows a state in which the mat 10 is placed on the office chair 12 and the fixing belt 6 is turned around the backrest and the seat surface.
A state in which the mat 10 is fixed to the office chair 12 by joining the ends thereof is shown. The use of the mat 10 allows the built-in charcoal particles C to effectively absorb sweat, body odor, indoor odor, and the like of the worker, and the charcoal particles C provide a blood circulation promoting function to reduce back pain, muscle pain, It also has the effect of preventing hemorrhoids, swelling of the feet, and chilliness. In addition, since it has an electromagnetic wave shielding function, there is also an effect of reducing adverse effects on the human body caused by electromagnetic waves emitted from OA equipment and the like.

FIG. 7 shows a case where the mat 10 is mounted on the sofa 13. In the case of the sofa 13, since the movement of the seated person is small and the mat 10 does not largely shift, the fixing belt 6 is removed. Mat 1
By using 0, sweat, body odor, tobacco, indoor odor, etc. can be effectively absorbed, and blood circulation promoting function has the effect of preventing lower back pain, muscle pain, hemorrhoids, swelling of legs, chilliness, etc. is there. In addition, because it has an electromagnetic wave shielding function,
This also has the effect of reducing the adverse effects of electromagnetic waves emitted from home televisions, personal computers, and other AV equipment. In addition, mat 1
Since 0 is flexible and bendable, it can be used by folding it into an L-shape, but it can also be used by folding it into two as shown at 10a.

In addition, the mat 10 can also be used as a floor mat by keeping it on the floor as it is, and by changing its shape, a sleeping bag, a tabi, a slipper, a boot, or a boot having a cooling-preventing effect can be obtained. Waist,
It can be used for a wide range of applications such as health pads that wrap around the legs and arms.

[0047]

According to the present invention, the following effects can be obtained.

(1) A plurality of spaces partitioned between a pair of air-permeable outer layer materials are formed, and inner layer materials formed by arranging nonwoven fabric bags in which crushed charcoal particles are sealed are housed in the spaces, respectively. By doing so, it is possible to provide a mat having a moisture absorbing property, an adsorbing property, a deodorizing function, and a blood circulation promoting function of a human body.

(2) A plurality of divided spaces are formed, and the inner layer material, which is formed by arranging nonwoven fabric bags in which crushed charcoal particles are sealed, is accommodated in each space, so that the charcoal can be uniformly distributed over the entire surface. The charcoal grains are not concentrated or unevenly distributed even when vibrated or moved.

(3) By providing a cushioning material between the inner layer material and the mat fabric, the cushioning material absorbs and disperses local stress due to the corners of the charcoal grains, thereby effectively damaging the inner layer material. And the feeling of use is improved.

(4) Even when the inner layer material is damaged, the leaked charcoal particles are sealed in the space defined by the cushioning material and the seam, and the charcoal particles leak out of the mat cloth. Also, the corners of the charcoal grains do not come into direct contact with the back side of the mat fabric, and do not impair the feeling of use.

(5) By forming a slidable thin film layer with the inner layer material on the surface where the inner layer material is in contact with the cushion material, the insertion of the inner layer material is facilitated and the work efficiency in the mat manufacturing process is improved.

(6) Even if the inner layer material is damaged and the charcoal particles leak, the thin film layer prevents the cushion material from being damaged.

(7) The use of chamfered charcoal grains reduces the damage to the inner layer material and improves the feeling of use. Even if the inner layer material is broken, the charcoal particles do not leak to the outside. This makes it possible to use high-temperature fired hard charcoal with high effect and far-infrared effect.

(8) Since the fixing belt can be detachably attached to the mat body, it can be replaced with a belt having a different length according to the size of the sheet, or replaced with a spare belt when the belt is damaged. Or you can. In addition, when one side of the mat body becomes dirty or damaged due to long-term use, the mat can be turned over, and the belt can be changed in direction to replace the mat, so that a clean surface of the mat body can be used again.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a mat for an automobile seat according to an embodiment.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a perspective view of an inner layer material in which charcoal particles are sealed.

FIG. 5 is a perspective view showing a use state.

FIG. 6 is a perspective view showing a use state.

FIG. 7 is a perspective view showing a use state.

[Description of Signs] 1 Mat fabric 2 Cushion material 3 Thin film layer 4 Seam 5 Inner layer material 5a Bag body 6 Fixing belt 6a Belt body 6b Surface fastener C Charcoal granules 10, 10a Mat for car seat 11 Front seat 12 Office chair 13 sofa 14 space 15 back seat

Claims (5)

[Claims] 1. A nonwoven fabric bag in which a plurality of independent spaces defined between outer layer materials are formed by overlapping and sewing a pair of outer layer materials having air permeability and flexibility, and crushed charcoal grains are enclosed. An automotive seat mat in which the inner layer members arranged in a row are respectively housed in the space, and the peripheral edge of the outer layer member is sewn. 2. The automobile seat mat according to claim 1, wherein the outer layer material is formed by integrally quilting a mat fabric and a cushion material. 3. The automobile seat mat according to claim 1, wherein a thin film layer on which the inner layer material is slidable is formed on an inner surface of the cushion material with which the inner layer material contacts. 4. A belt for fixing to an automobile seat is detachably attached to a peripheral portion of the sewn outer layer material.
The mat for an automobile seat according to any one of claims 1 to 3. 5. The car seat mat according to claim 1, wherein the charcoal particles are charcoal particles obtained by grinding chamfered lump charcoal and then chamfering the charcoal particles.