JPH1059591A - Three-dimensional meshlike sheet wound in roll shape - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the process number, and reduce manufacturing cost by winding a long size three dimensional meshlike sheet having a three-dimensional meshlike structure by accumulating and joining mutual fibers, in a roll shape in a condition of being compressed in the thickness direction. SOLUTION: A long size sheet 1 premanufactured by a manufacturing line 4 is wound as a roll-shaped sheet 1A while compressing it into about 1/5 of a former thickness by torque transmitted by a pair of driving rollers 71 and 71 while applying tension by auxiliary rollers 72 in respective winding units 7a, 7b and 7c of a compressive winder 5. A winding diameter of a roll sheet 1A is set to 400mm to 700mm from the relationship of a carry, and after it is cut in parallel in the width direction crossing the lengthwise direction P, a pressure sensitive adhesive tape is stuck to the other end (the rear end) being a winding tail end part as a fixing member, and is fixed and held so that the other end is not naturally rewound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to, for example, glass fibers,
Rolled three-dimensional mesh that can be used as a heat insulating material, a sound insulating material, or a sound absorbing material that has rock wool fiber, synthetic resin fiber, etc. as a constituent fiber, and has functions such as heat insulation, heat insulation, condensation prevention, and freezing prevention. Shape sheet.

[0002]

2. Description of the Related Art Conventionally, a three-dimensional mesh sheet (hereinafter, referred to as a sheet) used as a heat insulating material, a sound insulating material, or a sound absorbing material having functions of keeping heat, keeping cool, preventing dew condensation, and preventing freezing, has been known. , A bulky structure. Therefore, when the manufactured sheet is stored in a warehouse or transported to the site of use, it can be handled easily,
Care is taken to reduce logistics costs.

That is, after being manufactured on a manufacturing line, for example, as shown in FIG. 14, a three-dimensional mesh-like sheet (hereinafter, referred to as a bulky structure) having a bulky structure in which a plurality of sheets are cut in a predetermined size and stacked in the thickness direction The sheet 1h is reduced in size to 1/3 or less by being decompressed in a state where the periphery thereof is covered with an airtight bag (not shown), and becomes a reduced sheet 1H.
The reduced sheet 1H is kept in the reduced state by closing the opening of the airtight bag.

[0004] In this way, the sheet is held in a reduced state, and the periphery is covered with a packing material to form a single package.

[0005]

[Problems to be solved by the invention]

(1) A plurality of sheets 1h manufactured in the above-mentioned manufacturing line are stacked in the thickness direction, stored in an airtight bag, and reduced by reducing the pressure in the airtight bag to a predetermined pressure. In addition, the operation of covering the periphery of the reduced sheet 1H with the packing material requires a large facility, and the operation is troublesome, and the operation cost is high. (2) At the sheet use site, the reduced sheet 1H
When the package is unpacked, the inside of the airtight bag, which has been decompressed until now, is opened, and the inside rapidly shifts from the decompressed state to the atmospheric pressure.

For this reason, the reduced sheet 1H expands in such a manner that the pressure inside the constituent fibers of the sheet increases at a stretch, and the function quickly returns to the original thickness. Then, a part of the constituent fibers of the sheet is scattered by the momentum. In this case, extra work such as collecting and collecting the scattered fibers is required. Therefore, extra cost may be required, and it may not be possible to quickly shift to the next operation (eg, an operation of arranging the heat insulating material, the dew condensation preventing material, the soundproofing material, or the like at a required location).

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the number of steps is small and the manufacturing cost can be reduced even when the sheet is reduced so that a bulky and thick sheet is easily conveyed. It is another object of the present invention to provide a three-dimensional mesh sheet wound in a roll shape in which constituent fibers do not scatter when unpacking.

[0008]

According to a first aspect of the present invention, there is provided a three-dimensional mesh sheet in which fibers are integrated and joined, and a long three-dimensional mesh sheet having a three-dimensional mesh structure is compressed in a thickness direction. It is characterized by being wound in a roll shape in a state of being folded. A three-dimensional mesh sheet according to a second aspect of the present invention is the three-dimensional mesh sheet wound into a roll according to the first aspect, wherein perforations are formed at intervals in the longitudinal direction.

A three-dimensional mesh sheet according to a third aspect is the three-dimensional mesh sheet wound into a roll according to the first aspect, wherein a long protective film is laminated. Claim 4
4. The three-dimensional mesh sheet according to claim 3, wherein the three-dimensional mesh sheet and the protective film are integrally perforated at intervals in the longitudinal direction. Is inserted.

The three-dimensional mesh sheet according to the fifth aspect is the three-dimensional mesh sheet wound in a roll shape according to the third aspect, is cut at intervals in a longitudinal direction, and is formed into a long shape as a whole by a protective film. Is held. The protective film according to claim 6 is the three-dimensional mesh sheet wound into a roll according to claim 5, comprising a base sheet and a cover sheet, and the cut three-dimensional mesh sheet is a base sheet and a cover sheet. And is held between.

A three-dimensional mesh sheet according to a seventh aspect of the present invention is the three-dimensional mesh sheet wound into a roll according to the first aspect, wherein glass fibers, rock wool fibers, or synthetic resin fibers are accumulated, and the fibers are connected to each other. They are formed by being joined together. The three-dimensional mesh sheet according to claim 8 is the roll-shaped three-dimensional mesh sheet according to claim 1, wherein the thickness of the compressed three-dimensional mesh sheet is a thickness in an uncompressed state. １ ／ or less.

According to a ninth aspect of the present invention, there is provided the three-dimensional mesh-like sheet according to the first aspect, further comprising a fixing member fixedly held in a roll-like state.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A three-dimensional mesh sheet is provided with bulky constituent fibers, and is excellent in functions such as heat insulation, heat insulation, dew condensation prevention and freezing prevention, and is used as a heat insulating material, a sound insulating material and a sound absorbing material. it can. The three-dimensional mesh sheet is, for example, a state in which fibers are accumulated and fibers are bonded to each other, and formed in a state in which fibers are entangled, a state in which fibers are stacked, or a state in which fibers are mixed. , And refers to a state of being three-dimensionally configured.

As the fibers, for example, glass fibers,
Rock wool fibers, synthetic resin fibers, and the like can be used. The long three-dimensional mesh sheet refers to an intermediate product in a state before being cut into a size manufactured on a manufacturing line and used as a product. The three-dimensional mesh sheet wound into a roll is rolled into a predetermined size (winding diameter) in a state where the long three-dimensional mesh sheet is compressed at a predetermined compression ratio in a thickness direction. It refers to what is wound in a shape.

The compression ratio can be variously set to a desired value according to the material and thickness of the long three-dimensional mesh sheet before compression. The base sheet and the cover sheet constituting the protective film include, for example, a polyethylene film, a polyethylene film having aluminum evaporated on its surface, a polypropylene film, a polyvinyl chloride film, a polystyrene film, a polyvinylidene chloride film, a polyethylene terephthalate film, a polyamide (nylon ) Films and other resin films can be used.

The width and length of the perforated cut according to the second aspect can be variously set according to the material and thickness of the protective film. The sheet has a depth of 3/5 to 4/5 of its thickness in the thickness direction of the sheet from the other surface opposite to the surface coated with the protective film at the same position as the perforated cut. Notches such as slits are provided. In order to form a perforated cut in the protective film, a cutting tool device having a perforated cut blade movably provided in a direction of pressing and releasing the surface of the protective film on which the perforated cut is to be formed. Is used.

The blade device is disposed in the width direction of the protective film or in the longitudinal direction orthogonal to the width direction, and is provided on the surface of a long plate that reciprocates in a direction approaching and moving away from the surface of the protective film. A cutting device with a perforated cutting edge at the opposite end, or a perforated cutting edge at the circumference that rotates clockwise or counterclockwise while moving in the direction of approaching and moving away from the surface of the protective film. It is possible to use a disk-shaped cutting tool device provided, a high-frequency heating device having a perforated pressing portion heated to a predetermined temperature and forming a perforated cut by heating.

When the protective film is bonded to both sides of the sheet, a perforated cut is formed on the protective film on one side of the sheet, and the protective film on the other side of the sheet is formed on the protective film on the other side of the sheet. At the position facing the perforated cut, the cut in the thickness direction of the sheet is provided together with the sheet.
As the fixing member for fixing and holding the three-dimensional mesh sheet according to the ninth aspect in a rolled state, for example, the handling operation of simply attaching the three-dimensional mesh sheet to the roll-shaped end portion of the three-dimensional mesh sheet is simple. A suitable adhesive tape can be used.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments 1 to 4 of a three-dimensional mesh sheet wound into a roll according to the present invention will be described below with reference to FIGS. (Embodiment 1) A three-dimensional mesh-like sheet (hereinafter referred to as a roll-like sheet) 1 wound in a roll shape according to the embodiment 1 shown in FIG.
A is a bulky and thick (thickness t1 is about 50 mm) long three-dimensional mesh sheet (hereinafter, referred to as a long sheet) 1 shown in FIG. The minus end (tip) 10 of P is set to the winding center O side, and is compressed to about 1/5 while being wound, and is thinned to a thickness t1 of about 10 mm to a desired size (winding outer diameter). Is formed.

After the formed roll-shaped sheet 1A is cut off from the long sheet 1, an adhesive tape 2 as a fixing member is adhered to the other end (rear end) 11 serving as a winding end portion, and The other end 11 is fixed and held so as not to be unwound naturally. In order to form the roll-shaped sheet 1A, the long sheet 1 manufactured in advance on the manufacturing line 4 includes:
Glass fibers are accumulated and formed by joining fibers together, and the width W having a three-dimensional network structure is about 9
It is 10 mm.

In order to compress the long sheet 1 while winding it, a compression winding apparatus 5 shown in FIG. 3 is used. The compression winding device 5 is disposed at substantially equal angles in the circumferential direction on the outer periphery S of the roll-shaped sheet 1A with respect to the base 6, and the first winding held on the base 6 by a holding member (not shown). Unit 7a and the second winding unit 7
b, a third winding unit 7c.

The first winding unit 7a is held at a fixed position on the base 6. The second winding unit 7b and the third winding unit 7c are held movably in the radial direction with respect to the base 6 in accordance with the winding diameter of the rolled sheet 1A. That is, the second take-up unit 7b and the third take-up unit 7c are arranged in a radial outward direction (arrow S) to increase the take-up diameter of the rolled sheet 1A.
1) and a radially inward direction (see arrow S2) toward the center of the winding diameter.

Each of the winding units 7a, 7b, 7c
The roll-shaped sheet 1A has a driving unit 70 such as a motor, and rotates in conjunction with the driving unit 70, and has a rotation axis 710 arranged in parallel with the central axis O of the roll-shaped sheet 1A.
A pair of drive rollers 7 that abut against the outer periphery S of the roller and transmit the rotational force.
1, 71, an auxiliary roller 72 which abuts on the outer periphery S of the roll-shaped sheet 1A to apply tension, and changes its position with respect to the auxiliary roller 72 and urges or urges the auxiliary roller 72 toward the roll-shaped sheet 1A. It comprises a cylinder device 73 for releasing the state.

The long sheet 1 previously produced on the production line 4 is supplied to each winding unit 7 of the compression winding device 5.
a, 7b, and 7c, while being tensioned by the auxiliary roller 72, and being compressed to about 1/5 of the original thickness by the rotational force transmitted by the pair of driving rollers 71, 71 to form a roll-shaped sheet 1A. Taken. In addition, the winding diameter of the roll-shaped sheet 1A is 400 m from the relation of conveyance.
m to 700 mm, cut in parallel along the width W direction intersecting with the longitudinal direction P, and then affix an adhesive tape 2 as a fixing member to the other end (rear end) 11, which is a winding end portion,
In addition, the other end 11 is fixed and held so as not to be unwound naturally.

Next, the roll-shaped sheet 1A is covered with a bag-shaped packaging material (not shown) and supplied directly to the use site.
Alternatively, once stored in a predetermined storage place, it is supplied to the use site as needed. Here, in order to efficiently release the compressed state from the rolled sheet 1A whose thickness has been compressed as described above, the rewinding device 8 (see FIG. ) Is used.

That is, the rewinding device 8 is provided with a case 80 for forming an accommodating portion 8a for accommodating the rolled sheet 1A.
And a plurality of pinch rollers 81 which are axially supported in the accommodating portion 8a in parallel with the central axis O of the roll-shaped sheet 1A and are arranged so as to abut on the outer periphery S of the roll-shaped sheet 1A at equal intervals.
And a pair of upper and lower feed pinch rollers 82, 82 forming a take-out opening 8b communicating with the accommodating portion 8a.

At the point of use, the rolled sheet 1A is stored in a storage portion 8a of the rewinding device 8 while being wound in a roll shape, placed on a plurality of pinch rollers 82, and owing to its own weight. While maintaining the wound state, the adhesive tape 2 shown in FIG. 1 is peeled off, and the used length requiring the winding other end 11 is guided to the pinch rollers 82, 82 from the take-out opening 8b. And is returned to the original thickness t1 before being compressed and cut. The cut sheet 1a is used for a heat insulating material such as a wall, a ceiling, and a floor under a house, a soundproofing material, a sound absorbing material, and the like.

As described above, the rolled sheet 1A of the first embodiment
According to the method, since it is compressed into a roll and is not bulky and is in a unit of one roll, it can be easily carried on a shoulder at the time of transportation, and is easily transported. Furthermore, when the bulky long sheet 1 is compressed in the thickness direction to obtain the roll-shaped sheet 1A, it can be performed at atmospheric pressure without using a conventionally required pressure reducing means.

Therefore, when the compressed state of the rolled sheet 1A is released, the rolled sheet 1A expands gently and returns to the original thickness t1.
For this reason, in the case of Example 1, it is different from what was housed in the conventional airtight bag and sealed in a reduced pressure and reduced state, and abruptly increased to the atmospheric pressure from the reduced pressure state with the conventional unpacking. The problem that a part of the constituent fibers of the sheet scatters violently by the transfer can be solved.

(Embodiment 2) The roll sheet 1B of Embodiment 2 shown in FIG. 5 has the same configuration as the roll sheet 1A of Embodiment 1 except that a long sheet 1b before compression is used. is there. That is, the elongate sheet 1b is located at a distance L1 in the width direction W intersecting with the longitudinal direction P and in the thickness t1 direction from the first surface 12 toward the other surface 13, the thickness is 3/5 to 4% of the thickness. Width direction slit 1 with a cutting depth h1 of / 5
6 has the same configuration as the long sheet 1 of the first embodiment except that the sheet 6 is provided.

The width direction slit 16 has a cutting depth h1.
And the ratio of the uncut thickness h2 to the long sheet 1b
Can be set variously depending on the material and thickness t1. In addition, in order to provide the width direction slit 16, the width direction slit forming device 9 arranged at the position shown in FIG. 7 is used.

The width direction slit forming device 9 includes a blade support 90 disposed on the other surface 13 of the long sheet 1b and extending linearly along the width W direction of the long sheet 1b; Arrow Y from the one surface 12 side of the
1 and a cutting tool 91 reciprocating in the Y3 direction.
According to the roll-shaped sheet 1B of the second embodiment, the first embodiment
The same effect as that of the sheet 1A is obtained, and since a plurality of width direction slits 16 are provided at positions separated by an interval L1 in the longitudinal direction P, when the compressed state is released using the rewinding device 8, In addition, the width-direction slit 16 allows the operator to pull out quickly and obtain the required number of sheets only by pulling by the operator, so that the number of work steps can be reduced.

(Modified Example of Embodiment 2) The rolled sheet 1C of the modified example shown in FIG. 6 has a plurality of slits 16 in the width direction of the long sheet 1b and a longitudinal direction substantially at the center in the width direction W. The configuration is the same as that of the roll-shaped sheet 1B of Example 2 except that a long sheet 1c having a longitudinal slit 17 extending to P is used.

In order to form the longitudinal slit 17, the center of the elongate sheet 1 in the width direction W is substantially parallel to the longitudinal direction P at a position immediately after the width direction slit forming device 9 (see FIG. 7). A longitudinal slit forming apparatus provided with a disk-shaped cutting tool (not shown) which is installed and has a cutting blade formed in the entire circumferential area is used. That is, immediately after the width direction slit 16 is formed in the long sheet 1 by the width direction slit forming device 9, the disc-shaped cutting tool of the longitudinal direction slit forming device is pressed against the long sheet 1 while rotating. The width direction slit 16 is formed by making a cut in accordance with the cut depth h1 and the uncut thickness h2.

In the case of this modified example, in addition to the effect of the rolled sheet 1B of the second embodiment, the sheet 1a (see FIG. 4) cut off by the width direction slit 16 is further cut by the longitudinal direction slit 17. This is convenient when the sheet 1a is divided into a plurality and used. (Embodiment 3) Roll-shaped sheet 1D of Embodiment 3 shown in FIG.
Has the same configuration as the roll-shaped sheet 1A of Example 1 except that the long sheet 1d before compression is used.

That is, the long sheet 1d is separated by the distance L1.
A width direction slit having a cutting depth h1 of 3/5 to 4/5 of the thickness in the width direction W intersecting the longitudinal direction P and in the thickness t1 direction from the other surface 13 to the one surface 12 16a, a protection film 3a is joined to one surface 12, and a width direction perforation 18a is provided in the protection film 3a at a position facing the width direction slit 16a. It has the same configuration as the long sheet 1.

As the protective film 3a, a polyethylene film is used. In order to provide the width direction slit 16a and the width direction perforated cut 18a, FIG.
Width direction slit forming device 9 arranged at the position shown in FIG.
a is used. The width direction slit forming device 9a is disposed on the other surface 13 side of the long sheet 1d, extends linearly along the width W direction, and faces the other surface 13 of the long sheet 1d in the directions of arrows Y2 and Y4. Tool 90a reciprocating in the direction
And a blade 91a (or a high-frequency heating member 9) disposed on one surface 12 side of the long sheet 1d and reciprocating in the directions of the arrows Y1 and Y3 toward the one surface 12 of the long sheet 1d.
2a).

In order to form the long sheet 1d of the third embodiment, the protection film 3a sent from the protection film supply device 3A is joined to one surface 12 of the unprocessed long sheet 1, and then the width direction is formed. Blade tool 91a of slit forming device 9a
Thus, the width direction slit 16a is provided on the other surface 13 and the width direction perforated cut 18a is provided on the protective film 3a by the cutting tool 91a (or the high frequency heating member 92a). This long sheet 1d
Is wound into a predetermined size by the compression winding device 5 as in the case of the long sheet 1 of the first embodiment, and is formed as a roll sheet 1D.

According to the roll-shaped sheet 1D of the third embodiment,
The same effect as that of the sheet 1B of the second embodiment can be obtained, and since the protective film 3a is joined to the one surface 12, the sheet itself can be protected and strengthened, and the durability can be increased. Can be easily separated because the width direction perforated cut 18a is provided at a position facing the width direction slit 16a.

(Modification of Embodiment 3) A roll-shaped sheet 1E of a modification shown in FIG.
In addition to the plurality of perforated cuts 17a in the width direction of the protective film 3a bonded to the longitudinal sheet P, the perforated cuts 1 in the longitudinal direction parallel to the longitudinal direction P at substantially the center in the width direction W of the long sheet 1.
8b is formed on the other surface 13 of the long sheet 1
The configuration is the same as that of the roll-shaped sheet 1D of Example 3, except that a long sheet 1e having a longitudinal slit 17a indicated by a dotted line is used.

In order to form the longitudinal perforated cuts 18b, a position parallel to the longitudinal direction P is substantially at the center of the width direction w at the one surface 12 side of the long sheet 1 immediately after the width direction slit forming device 9a. And a perforated cut provided with a disk-shaped cutting tool (not shown) in which the circumferential portion is formed as a perforated cut immediately after forming the widthwise perforated cut 18a on the long sheet 1. By using a forming apparatus and pressing the disc-shaped cutting tool against the long sheet 1 while rotating, the perforated cut 18b in the longitudinal direction is formed.

In order to form the longitudinal slits 17a, the longitudinal sheet P is disposed at a position on the other surface 13 side of the long sheet 1 immediately after the width direction width direction slit forming device 9a and substantially parallel to the longitudinal direction P at the center in the width direction W. And a longitudinal slit forming apparatus provided with a disc-shaped cutting tool (not shown) in which the entire circumferential portion is formed as a cutting blade. In the case of this modification, in addition to the effect of the roll-shaped sheet 1D of the third embodiment, the sheet 1a (see FIG. 4) cut by the width-direction slit 16a and the width-direction perforation cut 18a is further cut into the longitudinal direction slit 1a.
Since it is possible to cut the sheet 1a into a plurality of pieces, since the sheet 1a can be cut at 7a and the longitudinal direction perforated cut 18b.

(Embodiment 4) The roll sheet 1F of Embodiment 4 shown in FIG. 11 has the same configuration as the roll sheet 1D of Embodiment 3 except that a long sheet 1f before compression is used. is there. The long sheet 1f includes a second protective film 3b on the other surface 13 of the long sheet 1d of the third embodiment.
It has the same configuration as the long sheet 1d of the third embodiment except that it is joined to the region except for the width direction slit 16a.

Example 4 In order to form a long sheet 1f, as shown in FIG.
B, the protective film 3b sent out from B is joined to the other surface 13 of the unprocessed long sheet 1, and then the other surface 1 is cut by the blade tool 90a of the same width direction slit forming device 9a as in the third embodiment.
3 and the protective film 3b are formed in the same manner as in Example 3 except that the width direction slits 16a and 16b are provided.

This long sheet 1f has a protective film 3a joined to one surface 12 side and provided with a width direction perforation cut 18a and a protective film joined to the other surface 13 side and provided with a width direction slit 16b. Since it is sandwiched between the film 3b and the film 3b, the strength is high. The long sheet 1f is wound into a roll of a predetermined size in a compressed state by the compression winding device 5, and is formed as a roll sheet 1F.

The roll-shaped sheet 1F of the fourth embodiment is provided with a width-direction slit 16b,
In addition to the same effects as D, protective films 3a on both sides,
3b, the strength is excellent, and the protective film 3a,
3b, the width direction perforations 18a and the width direction slits 16b are formed together with the width direction slits 16a in use when the compressed state is released using the rewinding device 8 (see FIG. 4). Therefore, it is possible to quickly separate and obtain the required number of sheets only by the operation of pulling by the operator, so that the number of work steps can be reduced.

(Modification of Fourth Embodiment) A roll-shaped sheet 1G of a modification shown in FIG. 12 is a plurality of widthwise perforations of the protective film 3a joined to one surface 12 of the long sheet 1 of the third embodiment. In addition to the slit 18a, a longitudinal perforation 18b is formed substantially in the center of the width direction W of the long sheet 1 in parallel with the longitudinal direction P, and two points are formed on the other surface 13 of the long sheet 1. Example 4 except that a long sheet 1g formed with a longitudinal slit 17a indicated by a broken line (the same as the longitudinal slit 17a of the modification of Example 3) was used.
Has the same configuration as the roll-shaped sheet 1F.

In the case of this modified example, in addition to the effect of the roll-shaped sheet 1F of the fourth embodiment, the sheet 1a cut by the width direction slit 16a and the width direction perforation 18a is further cut into the longitudinal direction slit 17a and the longitudinal direction. Since the sheet 1a can be cut by the direction perforated cut 18b, it is convenient when the sheet 1a is divided into a plurality of pieces.

[0049]

As described above, according to the three-dimensional mesh sheet rolled into a roll according to the present invention, a heat insulating material or a sound insulating material having functions such as heat retention, cold retention, dew condensation prevention, and freeze prevention are provided.
In order to be used as a sound absorbing material, a long, three-dimensional mesh-like sheet made of thick and thick constituent fibers is wound into a roll in a state where it is compressed in the thickness direction to form one unit. Therefore, it is easy to handle and easy to transport.

In order to form the rolled three-dimensional mesh-like sheet, a long, thick, bulky three-dimensional mesh-like sheet manufactured in advance is rolled while being compressed in the thickness direction. When rolled, it is at atmospheric pressure and without reduced pressure. Then, when the compressed state of the three-dimensional mesh-like sheet wound into a roll is released, the three-dimensional mesh sheet gently expands due to the restoring force of the constituent fibers and returns to the original thickness.

For this reason, in the case of the present invention, unlike the conventional one which is housed in a hermetic bag and sealed in a reduced-pressure, reduced-size state, and is conventionally unpacked, the pressure is reduced from the reduced-pressure state to atmospheric pressure. The problem that a part of the constituent fibers of the sheet scatters violently due to the rapid transition can be solved. Therefore, according to the three-dimensional mesh sheet of the present invention, the number of steps is small and the manufacturing cost can be reduced even when the thickness is compressed so that a bulky and thick sheet can be easily conveyed.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a three-dimensional mesh sheet wound in a roll shape according to a first embodiment.

FIG. 2 is a perspective view showing a long three-dimensional mesh sheet and a three-dimensional mesh sheet compressed in a thickness direction and wound into a roll in Example 1.

FIG. 3 is an explanatory view showing a schematic process of forming the long three-dimensional mesh sheet shown in FIG. 1 by winding it into a roll while compressing it in the thickness direction.

FIG. 4 is a perspective view showing a step of decompressing the three-dimensional mesh-like sheet wound into a roll in FIG.

FIG. 5 is a perspective view showing a long three-dimensional mesh-like sheet and a three-dimensional mesh-like sheet compressed in the thickness direction and wound into a roll in Example 2.

FIG. 6 is a perspective view showing a modification of the second embodiment in FIG. 5;

FIG. 7 is an explanatory diagram showing a schematic process of forming the long three-dimensional mesh sheet in FIG. 5 by rolling it into a roll while compressing the sheet in the thickness direction.

FIG. 8 is a perspective view showing a long three-dimensional mesh sheet and a three-dimensional mesh sheet which is compressed in a thickness direction and wound into a roll in Example 3.

FIG. 9 is a perspective view showing a modification of the third embodiment in FIG. 8;

FIG. 10 is an explanatory view showing a schematic process of forming the long three-dimensional mesh sheet in FIG. 8 by winding it into a roll while compressing it in the thickness direction.

FIG. 11 is a perspective view showing a long three-dimensional mesh sheet and a three-dimensional mesh sheet which is compressed in the thickness direction and wound into a roll in Example 4.

FIG. 12 is a perspective view showing a modification of the fourth embodiment in FIG. 11;

13 is an explanatory view showing a schematic process of forming the long three-dimensional mesh sheet in FIG. 11 by winding it into a roll while compressing it in the thickness direction.

FIG. 14 is a view showing a state where a predetermined number of rectangular three-dimensional mesh-like sheets each having a predetermined width and length, which have been cut into predetermined lengths after being manufactured by a conventional manufacturing line, are compressed and reduced by a decompression method while being stacked in a predetermined number. FIG.

[Explanation of symbols]

 1A to 1G: Three-dimensional mesh sheet wound in a roll shape 1, 1b to 1g: Long three-dimensional mesh sheet 1a: Three-dimensional mesh sheet at the time of use 12: One face Other face: 13

Claims (9)

[Claims] 1. A roll wherein a long three-dimensional mesh sheet having a three-dimensional network structure in which fibers are integrated and bonded to each other is rolled in a state of being compressed in a thickness direction. Three-dimensional mesh sheet wound in a shape. 2. The three-dimensional mesh sheet wound on a roll according to claim 1, wherein the three-dimensional mesh sheet is provided with perforations at intervals in the longitudinal direction. 3. The three-dimensional net-like sheet according to claim 1, wherein said three-dimensional net-like sheet has a long protective film laminated thereon. 4. The three-dimensional mesh wound into a roll according to claim 3, wherein the three-dimensional mesh-like sheet and the protective film are integrally formed with perforated cuts at intervals in a longitudinal direction. Sheet. 5. The three-dimensional mesh wound into a roll according to claim 3, wherein the three-dimensional mesh-like sheet is cut at intervals in a longitudinal direction and held as a whole by the protective film. Sheet. 6. The roll according to claim 5, wherein the protective film comprises a base sheet and a cover sheet, and the cut three-dimensional mesh sheet is held between the base sheet and the cover sheet. Three-dimensional mesh sheet wound in a shape. 7. The three-dimensional mesh sheet is formed by accumulating glass fibers, rock wool fibers, or synthetic resin fibers, and joining the fibers to each other.
A three-dimensional mesh sheet wound in a roll shape as described. 8. The three-dimensional mesh sheet wound into a roll according to claim 1, wherein the thickness of the compressed three-dimensional mesh sheet is less than half the thickness of the three-dimensional mesh sheet in an uncompressed state. . 9. The three-dimensional mesh sheet wound into a roll according to claim 1, further comprising a fixing member fixedly held in a state wound into a roll.