JP2018067845A - Sheet structure, manufacturing method therefor and method of application for three-dimensional structure body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet structure having excellent flexibility and high resistance to degradation in transmission characteristics even when being deformed.SOLUTION: A sheet structure 1000 is incorporated in a transmission sheet for transmitting information or electric power for use. The sheet structure 1000 includes a three-dimensional structure body 100. The three-dimensional structure body 100 includes a textile 110 applied with conductivity, a textile 120 and a connection string 131 for connecting the textile 110 with the textile 120.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sheet structure, a method for manufacturing the sheet structure, and a method for using the three-dimensional structure.

  Currently, transmission sheets for transmitting information and power are known. As such a transmission sheet, for example, a communication sheet that suppresses the emission of radio waves to a three-dimensional space and localizes radio waves on a two-dimensional sheet surface is known. Such a communication sheet is used, for example, as a medium for transmitting information to a receiving device arranged on the communication sheet. Such a communication sheet is disclosed in Patent Document 1, for example.

  The communication sheet structure disclosed in Patent Document 1 is composed of a planar base material having a relative dielectric constant of 1.0 to 15.0 at a frequency of 800 MHz to 10 GHz. Patent Document 1 discloses adopting a fiber structure as such a base material. By the way, at present, in order to make the transmission sheet as described above applicable to clothes and the like, there is a demand for making the transmission sheet flexible.

Japanese Patent No. 5432139

  However, the communication sheet structure disclosed in Patent Document 1 is not supposed to be applied to clothes or the like. For this reason, when the communication sheet structure disclosed in Patent Document 1 is applied to clothes or the like, the flexibility is insufficient, and the transmission characteristics are greatly reduced during deformation. For this reason, a sheet structure that has excellent flexibility and hardly deteriorates transmission characteristics when deformed is desired.

  The present invention has been made in view of the above problems, and has a sheet structure that has excellent flexibility and hardly deteriorates transmission characteristics when deformed, a method for manufacturing the sheet structure, and a method for using the three-dimensional structure The purpose is to provide.

In order to achieve the above object, a sheet structure according to the first aspect of the present invention includes:
A sheet structure used by being incorporated in a transmission sheet for transmitting information or power,
A three-dimensional structure including a first fabric imparted with conductivity, a second fabric, and a connecting thread that couples the first fabric and the second fabric is provided.

  The three-dimensional structure may be constituted by double raschel knitting.

In the first fabric,
A conductor layer formed by printing a paste-like conductor on the first fabric may be provided.

In the first fabric,
A base layer made of an elastic insulator covering the first fabric;
And a conductor layer formed by printing a paste-like conductor on the base layer.

In the first fabric,
A cover layer may be provided that is made of an elastic insulator and covers the conductor layer.

  The base layer may be made of an elastic synthetic resin.

  The cover layer may be made of an elastic synthetic resin.

  The elastic synthetic resin may include any of a polyurethane synthetic resin, a polyester synthetic resin, an acrylic silicon synthetic resin, and a fluorine synthetic resin.

  The conductor layer may be formed by screen printing the paste-like conductor.

In the first fabric,
A conductor layer made of conductive yarn fixed on the first fabric may be provided.

  The first fabric may be constituted by a knitted fabric in which conductive yarns are knitted.

In order to achieve the above object, a method for manufacturing a sheet structure according to the second aspect of the present invention includes:
A method for manufacturing a sheet structure used by being incorporated in a transmission sheet for transmitting information or power,
Generating a three-dimensional structure comprising a first fabric, a second fabric, and a connecting thread that connects the first fabric and the second fabric;
Conductivity is imparted to the first fabric.

In order to achieve the above object, a method of using the three-dimensional structure according to the third aspect of the present invention includes:
Information or electric power is transmitted through a three-dimensional structure including a first fabric imparted with conductivity, a second fabric, and a connecting thread that couples the first fabric and the second fabric. Used for transmission sheets.

  ADVANTAGE OF THE INVENTION According to this invention, it can provide the sheet | seat structure which has the outstanding softness | flexibility, and a transmission characteristic does not fall easily at the time of a deformation | transformation, the manufacturing method of a sheet structure, and the usage method of a three-dimensional structure.

It is a disassembled perspective view of the sheet structure concerning Embodiment 1 of the present invention. It is sectional drawing of the sheet | seat structure which concerns on Embodiment 1 of this invention. It is a figure which shows the stitch of the fabric which concerns on Embodiment 1 of this invention. It is a flowchart which shows the manufacturing process of the sheet | seat structure which concerns on Embodiment 1 of this invention. It is sectional drawing of the sheet | seat structure which concerns on the modification 1 of Embodiment 1 of this invention. It is sectional drawing of the sheet | seat structure which concerns on the modification 2 of Embodiment 1 of this invention. It is sectional drawing of the sheet | seat structure which concerns on the modification 3 of Embodiment 1 of this invention. It is a perspective view of the sheet structure concerning Embodiment 2 of the present invention. It is a front view of the three-dimensional structure by which the conductor layer was fixed to the fabric. It is a rear view of the three-dimensional structure by which the conductor layer was fixed to the fabric. It is a perspective view of the sheet structure concerning Embodiment 3 of the present invention. It is a figure which shows the stitch of the fabric which concerns on Embodiment 3 of this invention.

(Embodiment 1)
First, with reference to FIG. 1 and FIG. 2, the structure of the sheet | seat structure 1000 which concerns on Embodiment 1 of this invention is demonstrated easily. FIG. 1 is an exploded perspective view of a sheet structure 1000 according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the sheet structure 1000 taken along an XZ plane (a plane perpendicular to the Y axis) passing through the central portion of the sheet structure 1000 in the Y-axis direction. In the present embodiment, the direction in which the layers of the sheet structure 1000 are stacked is the Z-axis direction, the X-axis direction is a direction orthogonal to the Z-axis direction, and the Y-axis direction is orthogonal to the X-axis direction and the Z-axis direction. Direction. As shown in FIG. 2, in the sheet structure 1000, a cover layer 500, a conductor layer 200, a base layer 400, a fabric 110, an intermediate layer 130, a fabric 120, and a conductor layer 300 are sequentially stacked. Configured. Here, the fabric 110, the intermediate layer 130, and the fabric 120 constitute the three-dimensional structure 100.

  The sheet structure 1000 is a sheet-like medium used for a transmission sheet. The sheet form means a shape having a two-dimensional surface spread and a small thickness. Examples of the transmission sheet include a communication sheet, a power supply sheet, and a circuit sheet. The communication sheet is a sheet for transmitting radio waves as information. The power supply sheet is a sheet for transmitting radio waves as power or transmitting DC voltage as power. The circuit sheet is a sheet for processing and transmitting an electrical signal as information.

  When using a transmission sheet, for example, one device is used in a state where it is connected to the transmission sheet by a connector or placed on the transmission sheet, and another device is placed on the transmission sheet. Used in. For example, when transmitting a radio wave including information using a transmission sheet, a transmission device connected to the transmission sheet via a connector injects the radio wave into the transmission sheet via the connector and is disposed on the surface of the transmission sheet. The receiving device receives radio waves leaking from the surface of the transmission sheet.

  Also, for example, when transmitting a radio wave as power using a transmission sheet, a power source connected to the transmission sheet via a connector injects the radio wave into the transmission sheet via the connector and is disposed on the surface of the transmission sheet. The sensor receives the radio wave leaking from the surface of the transmission sheet. Also, for example, when transmitting a DC voltage as electric power using a transmission sheet, a power source connected to the transmission sheet via a connector applies a DC voltage between two conductor layers of the transmission sheet via the connector. A sensor arranged on the surface of the transmission sheet acquires a DC voltage applied between two conductor layers included in the transmission sheet.

  In the present embodiment, the sheet structure 1000 is used as a transmission sheet for transmitting radio waves. Accordingly, the sheet structure 1000 is a three-dimensional structure that is a dielectric body by the conductor layer 200 that is formed of a conductor and provided with a mesh-like opening, and the conductor layer 300 that is formed of a conductor and has a flat plate shape. 100 is sandwiched. According to such a configuration, it can be expected that the radio wave supplied to the transmission sheet efficiently propagates in the surface direction in which the transmission sheet spreads and is efficiently supplied to the devices on the transmission sheet.

  Here, the transmission sheet may be used in a folded state instead of a flat state. For example, when the transmission sheet is used as a power supply sheet that supplies power to a sensor that detects information related to a human body, it is preferable that the transmission sheet be configured to be wearable so that the transmission sheet can be easily attached to the human body. In this case, it is preferable that the transmission characteristic does not deteriorate even if the transmission sheet is bent. Here, the thickness of the dielectric layer is an element that affects the transmission characteristics. That is, if the thickness of the dielectric layer is uniform, the dielectric loss tangent and relative dielectric constant of the dielectric layer are uniform, the electric field distribution on the transmission sheet is uniform, and the transmission characteristics are good. On the other hand, if the thickness of the dielectric layer is not uniform, the dielectric loss tangent and relative dielectric constant of the dielectric layer are not uniform, the electric field distribution on the transmission sheet is not uniform, and the transmission characteristics are deteriorated. Therefore, a dielectric layer used for the transmission sheet is desired to have a thickness that does not easily change even when the transmission sheet is bent.

  In the present embodiment, as such a dielectric layer, the three-dimensional structure 100 including the fabric 110, the fabric 120, and the intermediate layer 130 including the connecting yarn 131 that connects the fabric 110 and the fabric 120 is used. adopt. The three-dimensional structure 100 is unlikely to change in thickness even when bent. That is, by using the sheet structure 1000 including the three-dimensional structure 100 as a transmission sheet, it is possible to suppress a decrease in transmission characteristics when the transmission sheet is bent.

  Moreover, when manufacturing a transmission sheet, it is necessary to form the conductor layer 200 and the conductor layer 300 on the three-dimensional structure 100 or to incorporate the conductor layer 200 on the three-dimensional structure 100. Forming or assembling methods include plating, bonding with an adhesive, screen printing, sewing with a thread, and braiding of a conductive thread. In this embodiment, an example in which the conductor layer 200 is formed on the three-dimensional structure 100 by screen printing and the conductor layer 300 is formed on the three-dimensional structure 100 by plating will be described.

  The three-dimensional structure 100 is a sheet-like insulator that constitutes a dielectric layer that propagates radio waves. It is desired that the three-dimensional structure 100 is flexible, has high transmission efficiency, has stable transmission characteristics, and can easily form the conductor layer 200 and the conductor layer 300. In order to improve the transmission efficiency, it is preferable to appropriately confine the radio wave in the transmission sheet, efficiently transmit the radio wave, and reduce the attenuation of the radio wave in the transmission sheet. In order to improve the transmission efficiency, it is preferable to employ the three-dimensional structure 100 having a high porosity and a small relative dielectric constant and dielectric loss tangent. For example, the three-dimensional structure 100 preferably has a relative dielectric constant of 1.0 to 15 at a frequency of 800 MHz to 5 GHz, more preferably 1.0 to 5.0, and 1.0 to 3. More desirably, it is zero. The three-dimensional structure 100 preferably has a dielectric loss tangent at a frequency of 800 MHz to 5 GHz of 0.01 or less, and more preferably 0.001 to 0.01.

  In addition, in order to obtain stable transmission characteristics, it is preferable to employ a material or shape that does not easily change its thickness even when bent as the three-dimensional structure 100. Further, in order to form the conductor layer 200 and the conductor layer 300, the portion where the conductor layer 200 and the conductor layer 300 are formed as the three-dimensional structure 100 is somewhat dense and has a certain degree of strength. Is preferred. In the present embodiment, double raschel knitting is adopted as the three-dimensional structure 100 that satisfies these conditions.

  The three-dimensional structure 100 includes a fabric 110, a fabric 120, and a connecting thread 131, and is provided between the conductor layer 200 and the conductor layer 300. The fabric 110 is a fabric that is arranged on the front side of the three-dimensional structure 100 (the side with the larger coordinate in the Z-axis direction). The fabric 120 is a fabric that is disposed on the back side of the three-dimensional structure 100 (the side on which the coordinates in the Z-axis direction are small). The fabric 110 and the fabric 120 are, for example, knitted fabrics.

  FIG. 3 is a diagram illustrating a stitch of the fabric 110. FIG. 3 shows a state in which the four non-conductive yarns 111, 112, 113, 114 are woven together while forming a loop in the longitudinal direction. The fabric 120 has basically the same configuration as the fabric 110. The thickness of the fabric 110 and the thickness of the fabric 120 are, for example, about several hundred μm to several mm. The connecting yarn 131 is a yarn that connects the fabric 110 and the fabric 120 so that the distance between the fabric 110 and the fabric 120 is uniform. For ease of understanding, FIG. 3 shows only the fabric 110 and does not show the connecting thread 131. The connecting yarn 131 is a monofilament connecting yarn, and forms an intermediate layer 130 between the fabric 110 and the fabric 120. The thickness of the intermediate layer 130 is about several mm to several cm.

  The thickness of the intermediate layer 130 is thicker than the thickness of the fabric 110 and the thickness of the fabric 120. Further, since the intermediate layer 130 is mostly composed of air, the porosity is extremely high. Therefore, the relative dielectric constant and dielectric loss tangent of the entire three-dimensional structure 100 are extremely low. Therefore, the three-dimensional structure 100 has good transmission efficiency. Further, when the three-dimensional structure 100 is bent, the strain is absorbed by the intermediate layer 130 formed by the connecting yarn 131, so that the thickness of the three-dimensional structure 100 is maintained substantially uniform. Therefore, the three-dimensional structure 100 has stable transmission characteristics. Moreover, since the three-dimensional structure 100 is comprised by knitting, it is rich in a softness | flexibility.

  Further, the fabric 110 can be finely rugged on the surface by making the stitches fine. Therefore, the base layer 400 or the conductor layer 200 can be appropriately fixed to the fabric 110. Similarly, the surface of the fabric 120 can be made finer by making the stitches finer. Therefore, the conductor layer 300 can be appropriately fixed to the fabric 120.

  When the three-dimensional structure 100 is a double raschel knitted fabric, the fabric 110, the fabric 120, and the intermediate layer 130 are simultaneously generated by double raschel knitting. The fabric 110, the fabric 120, and the connecting thread 131 may be made of the same material, or may be made of different materials. Double raschel knitting is a fiber structure obtained by three-dimensionally knitting yarn made of natural fiber, regenerated fiber, synthetic fiber, or the like. The natural fibers are, for example, cotton, silk, hemp, mohair, wool, and cashmere. Examples of the recycled fiber include acetate, cupra, rayon, and recycled polyester. Synthetic fibers are, for example, nylon, polyurethane, polyester, and fistop.

  The double raschel knitting is, for example, a warp knitting constituted by continuously knitting a loop in a vertical direction, and is a kind of knitting. Unlike woven fabrics, knitted fabrics are fabrics that are made by joining loops while creating a stitch from a single thread. Therefore, the knitted fabric is more stretchable and flexible than the woven fabric, and a soft fabric can be obtained. Further, warp knitting basically uses a plurality of reeds and knitted several yarns simultaneously on one needle, so that the knitted fabric is stable.

  The radio wave injected into the sheet structure 1000 leaks above the sheet structure 1000 from the opening provided in the conductor layer 200 while propagating through the three-dimensional structure 100 in the XY plane direction. For this reason, radio waves (evanescent waves) are leached into the leaching region 600 in the vicinity of the conductor layer 200, and a near field is generated. The amount of radio waves leached from the surface of the conductor layer 200, that is, the size of the leaching region 600 mainly depends on the interval between meshes formed on the conductor layer 200, the relative dielectric constant of the three-dimensional structure 100, and the three-dimensional structure 100. It depends on the thickness. In addition, since the radio wave transmitted through the three-dimensional structure 100 is shielded by the conductor layer 300, it does not leach from the conductor layer 300 side.

  The conductor layer 200 is a layer composed of a conductor, and has a mesh-shaped opening. In the conductor layer 200, a plurality of first straight portions (not shown) arranged at equal intervals and a plurality of second straight portions (not shown) arranged at equal intervals are orthogonal to each other. Composed. The first straight part is a part extending in the first direction. The second straight line portion is a portion extending in a second direction orthogonal to the first direction. The first direction is the X-axis direction, and the second direction is the Y-axis direction. Further, when the conductor layer 200 is formed in a lattice shape, it is preferable that the width of the lattice is 0.5 mm to 1.5 mm and the interval of the lattice is 5 mm to 10 mm. The thickness of the conductor layer 200 is, for example, about several μm to several hundred μm.

  The conductor layer 200 is provided on the base layer 400 by screen printing. Screen printing is a type of stencil printing. Stencil printing is a printing method in which holes are made in the plate itself and ink is rubbed from the plate itself, instead of printing with ink on the plate. Specifically, the screen printing is a printing method in which ink is transferred onto a screen obtained by solidifying an unnecessary portion with printing with an emulsion and rubbed with a squeegee. Fibers such as silk and nylon / tetron are used for the screen.

  More specifically, the screen is pulled around and fixed to a frame, and a film is formed on it by a method using manual work or a photograph, and a plate is created by closing the screen eyes other than the necessary picture. Next, ink is put into the frame and moved while pressing the upper surface of the screen with a rubber spatula called a squeegee. As a result, the ink passes through the screen of the portion without the film, and is pushed out and printed on the upper surface of the substrate to be printed placed under the plate.

  In this embodiment, first, a screen is fixed to a frame, and a plate in which screen meshes in a grid-like mesh portion are blocked is created. Then, put silver paste in the frame and move it while pressing the top of the screen with a spatula. Then, a silver paste having a pattern having a grid-like mesh is printed on the base layer 400. The silver paste is cured by heating or drying. Then, the conductor layer 200 made of silver is generated on the base layer 400.

  The conductor layer 300 is a shield layer that suppresses noise from entering the dielectric layer (three-dimensional structure 100) from the external space, for example. The conductor layer 300 may be any material as long as it has conductivity and can be fixed on the fabric 120. In this embodiment, the conductor layer 300 shall be the metal plate affixed on the back surface of the fabric 120 by plating. The metal plate is, for example, an aluminum plate, a copper plate, or a silver plate. The conductor layer 300 is a flat layer and is not a special shape like the conductor layer 200. Therefore, the conductor layer 300 can be formed by simple processing such as plating without screen printing like the conductor layer 200. The thickness of the conductor layer 300 is, for example, about several μm to several hundred μm.

  The base layer 400 is a layer that serves as a base for fixing the conductor layer 200 on the fabric 110. That is, the conductor layer 200 is fixed on the fabric 110 through the base layer 400. Accordingly, the base layer 400 has a material and shape that are more suitable for screen printing than the fabric 110. “Suitable for screen printing” means, for example, that it is easy to print ink at the time of printing, and that ink is difficult to peel off after printing. For this reason, for example, the base layer 400 is preferably a material that has less surface unevenness, has elasticity, and does not have conductivity.

  Having elasticity means that there is elasticity like rubber, for example, means that the elastic limit is equal to or greater than a threshold value. The elastic limit is a limit value of stress that returns to the original dimension when the strain caused by applying the stress is unloaded. The base layer 400 is made of, for example, an elastic synthetic resin. Examples of the synthetic resin having elasticity include polyurethane synthetic resin, polyester synthetic resin, acrylic silicon synthetic resin, and fluorine synthetic resin. The base layer 400 is formed on the surface of the fabric 110 by, for example, spraying. The thickness of the base layer 400 is, for example, about several μm to several 100 μm.

  The cover layer 500 is a layer that covers the surface of the conductor layer 200. By covering the conductor layer 200 together with the base layer 400, the cover layer 500 prevents the conductor layer 200 from being divided or peeled off from the base layer 400 even when the three-dimensional structure 100 is deformed by bending or the like. To do. Therefore, the base layer 400, the conductor layer 200, and the cover layer 500 are fixed so as to be in close contact with each other. The cover layer 500 is made of an insulating material having elasticity. The cover layer 500 is made of, for example, a synthetic resin such as a polyurethane synthetic resin, a polyester synthetic resin, an acrylic silicon synthetic resin, or a fluorine synthetic resin. The cover layer 500 also has a function of protecting the surface of the conductor layer 200. That is, the cover layer 500 suppresses, for example, liquid such as water from adhering to the surface of the conductor layer 200 and excessive pressure from being applied to the surface of the conductor layer 200. The cover layer 500 is formed on the surface of the conductor layer 200 by spraying, for example. The cover layer 500 has a thickness of, for example, about several μm to several hundred μm.

  Next, a manufacturing process of the sheet structure 1000 according to the present embodiment will be described with reference to a flowchart shown in FIG. The manufacturing process of the sheet structure 1000 is, for example, a process executed by a user using a screen printing apparatus or the like.

  First, the user generates the three-dimensional structure 100 (step S101). For example, the user integrally forms the three-dimensional structure 100 including the fabric 110, the fabric 120, and the connecting yarn 131 using a knitting machine capable of double raschel knitting.

  As the double Russell knitting structure, for example, the following (1) to (3) can be adopted. (1) is a knitted structure in which both the front surface (fabric 110) and the back surface (fabric 120) are substantially flat (flat). (2) is a knitted structure in which the front surface (fabric 110) has a mesh shape and the back surface (fabric 120) has a substantially flat shape (flat plate shape). (3) is a knitted structure in which both the front surface (fabric 110) and the back surface (fabric 120) are meshed.

  Note that L1-L5 indicate five folds. For example, L1 and L2 are yarns constituting the fabric 110, L3 is a connecting yarn 131, and L4 and L5 are yarns constituting the fabric 120. The number 0-5 indicates the position of the eyelid. “Full set” indicates that all the yarns are fed to the guide arranged on the heel. Further, “× 2, ○ 2” indicates that two non-feed yarns and two yarn feeds are alternately performed on the guides arranged on the heel. In addition, “◯ 2, × 2” indicates that two yarns are supplied and two yarns are alternately supplied to the guides arranged on the heel. Further, “× 2, ○ 1, × 1” indicates that two yarns, one yarn, and one yarn are not alternately supplied to the guides arranged on the heel.

(1) Both sides are almost flat L1: 0000/3333/0000/3333/0000/3333/0000/3333 Full set L2: 1000/0111/1000/0111/1000/0111/1000/0111 Full set L3: 1010/0101 / 1010/0101/1010/0101/1010/0101 x2, ○ 1, x1
L4: 1110/0001/1110/0001/1110/0001/1110/0001 Full set L5: 3300/0033/3300/0033/3300/0033/3300/0033 Full set (2) Mesh on the back, almost flat on the back L1: 3345/5532/2245/5532/2210/0023/3310/0023 × 2, ○ 2
L2: 2210/0023/3310/0023/3345/5532/2245/5532 ○ 2, × 2
L3: 1010/0101/1010/0101/1010/0101/1010/0101 × 2, ○ 1, × 1
L4: 1110/0001/1110/0001/1110/0001/1110/0001 Full set L5: 3300/0033/3300/0033/3300/0033/3300/0033 Full set (3) Mesh on both sides L1: 1000/2333 / 1000/2333/4555/3322/2455/3222 ○ 2, × 2
L2: 4555/3222/2455/5322/1000/2333/1000/2333 × 2, ○ 2
L3: 1010/0101/1010/0101/1010/0101/1010/0101 Full set L4: 3345/5532/2245/5532/2210/0023/3310/0023 x2, ○ 2
L5: 2210/0023/3310/0023/3345/5532/2245/5532 ○ 2, × 2

  When the process of step S101 is completed, the user forms the base layer 400 on the fabric 110 (step S102). For example, the user injects a liquid synthetic resin (for example, polyurethane synthetic resin) onto the surface of the fabric 110 by spraying. Thereafter, the liquid synthetic resin is dried and cured to form the base layer 400 composed of the synthetic resin.

  When the process of step S102 is completed, the user generates a screen used for screen printing (step S103). For example, the user uses a screen printing apparatus to generate a screen that is a mold of the conductor layer 200 having a mesh-like opening.

  When the process of step S103 is completed, the user screen-prints the conductor layer 200 on the base layer 400 using the generated screen (step S104). For example, the user prints the silver paste on the base layer 400 by pressing the ink of the silver paste against the screen disposed on the base layer 400 using a screen printing apparatus. And a user forms the conductor layer 200 comprised with silver on the base layer 400 by heating and drying a silver paste using a screen printing apparatus. Conductivity is imparted to the fabric 110 by the process of step S104.

  When the process of step S104 is completed, the user forms the cover layer 500 on the conductor layer 200 (step S105). For example, the user injects a liquid synthetic resin (for example, polyurethane synthetic resin) onto the surface of the conductor layer 200 (the surface of the fabric 110 provided with the conductor layer 200) by spraying. Thereafter, the liquid synthetic resin is dried and cured to form the cover layer 500 made of the synthetic resin. The layer formed of the base layer 400, the conductor layer 200, and the cover layer 500, which is formed on the fabric 110, is a layer including a synthetic resin having conductivity and elasticity. The conductor layer 200 is sandwiched between the base layer 400 (undercoat) and the cover layer 500 (topcoat), thereby increasing durability and flexibility.

  When the process of step S105 is completed, the user forms the conductor layer 300 on the fabric 120 (step S106). For example, the user forms the conductor layer 300 made of aluminum on the fabric 120 by electroplating or vacuum deposition. Conductivity is imparted to the fabric 120 through the step S106. When the user completes the process of step S106, the manufacturing process of the sheet structure 1000 is completed.

  As described above, in the present embodiment, the three-dimensional structure 100 including the fabric 110, the fabric 120, and the connecting yarn 131 that connects the fabric 110 and the fabric 120 is used for the dielectric layer constituting the transmission sheet. It is done. Therefore, according to the present embodiment, it is possible to manufacture a transmission sheet that has excellent flexibility and hardly deteriorates transmission characteristics when deformed.

  In the present embodiment, a commercially available double raschel knitted fabric is employed as the three-dimensional structure 100. Therefore, according to the present embodiment, it is possible to reduce the manufacturing cost of the transmission sheet.

  In the present embodiment, the conductor layer 200 is formed on the base layer 400 provided on the fabric 110 by screen printing. Therefore, according to the present embodiment, it is possible to appropriately form the conductor layer 200 as compared with the case where the conductor layer 200 is directly formed on the fabric 110, and it is possible to extend the life of the conductor layer 200.

  In the present embodiment, the cover layer 500 is formed on the conductor layer 200, and the conductor layer 200 is sandwiched between the base layer 400 and the cover layer 500. Therefore, according to the present embodiment, the conductor layer 200 is prevented from being greatly deformed, and the life of the conductor layer 200 can be extended.

  In this embodiment, polyurethane is adopted as a material for the base layer 400 and the cover layer 500. Therefore, according to the present embodiment, the conductor layer 200 is appropriately prevented from being greatly deformed, and the life of the conductor layer 200 can be greatly extended.

(Modification 1 of Embodiment 1)
In the above embodiment, an example in which the cover layer 500 is provided on the conductor layer 200 and the conductor layer 200 is sandwiched between the base layer 400 and the cover layer 500 has been described. In the present invention, the cover layer 500 may not be provided. FIG. 5 is a cross-sectional view of the sheet structure 1100 according to the first modification example cut along an XZ plane (a plane perpendicular to the Y axis) passing through the center of the sheet structure 1100 in the Y-axis direction. As shown in FIG. 5, the sheet structure 1100 includes a conductor layer 200, a base layer 400, a fabric 110, an intermediate layer 130, a fabric 120, and a conductor layer 300 that are sequentially stacked.

  Also in the sheet structure 1100 according to the first modification, the conductor layer 200 is formed on the base layer 400 provided on the fabric 110 by screen printing. Therefore, also in the modified example 1, as in the first embodiment, the conductor layer 200 is appropriately formed by screen printing. Also in Modification 1, when the sheet structure 1100 is bent, the conductor layer 200 is suppressed from being greatly deformed by the action of the base layer 400. That is, also in the first modification, the life of the conductor layer 200 can be extended.

(Modification 2 of Embodiment 1)
In the above embodiment, an example in which the cover layer 500 is provided on the conductor layer 200 and the conductor layer 200 is sandwiched between the base layer 400 and the cover layer 500 has been described. In the present invention, the base layer 400 may not be provided. FIG. 6 is a cross-sectional view of the sheet structure 1200 according to the second modification example cut along an XZ plane (a plane perpendicular to the Y axis) passing through the center of the sheet structure 1200 in the Y-axis direction. As shown in FIG. 6, the sheet structure 1100 includes a cover layer 500, a conductor layer 200, a fabric 110, an intermediate layer 130, a fabric 120, and a conductor layer 300 that are sequentially stacked.

  In the sheet structure 1200 according to the second modification, the conductor layer 200 is formed on the fabric 110 by screen printing, but the cover layer 500 is provided on the conductor layer 200. Therefore, in the second modification, the conductor layer 200 is sandwiched between the fabric 110 and the cover layer 500. For this reason, also in the modified example 2, when the sheet structure 1200 is bent, the conductor layer 200 is suppressed from being largely deformed by the action of the cover layer 500. That is, in the second modification, it is possible to extend the life of the conductor layer 200.

(Modification 3 of Embodiment 1)
In the above embodiment, an example in which the cover layer 500 is provided on the conductor layer 200 and the conductor layer 200 is sandwiched between the base layer 400 and the cover layer 500 has been described. In the present invention, the base layer 400 and the cover layer 500 may not be provided. FIG. 7 is a cross-sectional view of a sheet structure 1300 according to Modification 3 cut along an XZ plane (a plane perpendicular to the Y axis) passing through the center of the sheet structure 1300 in the Y axis direction. As shown in FIG. 7, the sheet structure 1300 includes a conductor layer 200, a fabric 110, an intermediate layer 130, a fabric 120, and a conductor layer 300 that are sequentially stacked.

  In the sheet structure 1300 according to the modified example 3, the conductor layer 200 is formed on the fabric 110 by screen printing. Also in Modification 3, by making the fabric 110 a material and shape suitable for screen printing (for example, making the stitches of the fabric 110 finer), the conductor layer 200 is prevented from being greatly deformed. In addition, according to the third modification, a transmission sheet having excellent flexibility and whose transmission characteristics are not easily deteriorated at the time of deformation can be manufactured.

(Embodiment 2)
Embodiment 1 demonstrated the example which provides the conductor layer 200 on the three-dimensional structure 100 by screen printing. In the present invention, the method of providing the conductor layer 200 on the three-dimensional structure 100 is not limited to this method. In this embodiment, an example in which the thread member 211 is fixed on the three-dimensional structure 100 using the fixing thread 214 and the auxiliary thread 215 and the conductor layer 210 is configured by the thread member 211 will be described.

  FIG. 8 shows a perspective view of a sheet structure 1400 according to Embodiment 2 of the present invention. As shown in FIG. 8, the sheet structure 1400 includes a conductor layer 210, a fabric 110, an intermediate layer 130, a fabric 120, and a conductor layer 300 that are sequentially stacked. Here, the fabric 110, the intermediate layer 130, and the fabric 120 constitute the three-dimensional structure 100. The conductor layer 210 is fixed on the fabric 110. Furthermore, the conductor layer 300 is overlapped and fixed on the fabric 120.

  The conductor layer 210 is a layer having a mesh-shaped opening. The conductor layer 210 is composed of a thread-like member 211. A method of fixing the conductor layer 210 to the three-dimensional structure 100 will be described later. When the conductor layer 210 is formed in a lattice shape, it is preferable that the width of the lattice is 0.5 mm to 1.5 mm, and the interval of the lattice is 5 mm to 10 mm. The thickness of the conductor layer 210 is, for example, about several μm to several hundred μm.

  Next, with reference to FIGS. 9 and 10, a method for forming the conductor layer 210 on the three-dimensional structure 100 will be described. FIG. 9 is a front view of a mixed layer configured by forming a conductor layer 210 including a mesh-shaped opening formed by the thread-like member 211 on one surface of the three-dimensional structure 100. Here, conditions required for the mixed layer include (A) that radio waves can be properly propagated in the plane direction, and (B) that the flexibility of the sheet structure 1400 is not significantly reduced.

  In order to satisfy the condition (A), the conductor layer 210 needs to have conductivity. For this reason, the conductor layer 210 is constituted by a thread-like member 211 having conductivity. In order to satisfy the condition (A), the conductor layer 210 preferably has a mesh-shaped opening. Therefore, the conductor layer 210 includes a plurality of first straight portions 212 extending in the first direction (X-axis direction) and a plurality of second straight portions 213 extending in the second direction (Y-axis direction) orthogonal to each other. Thus, the thread-like member 211 is arranged. Here, the interval between the first linear portions 212 and the interval between the second linear portions 213 are equal. That is, the conductor layer 210 is formed in a square lattice shape. In FIG. 9, only one first straight line portion 212 and one second straight line portion 213 are denoted by reference numerals for easy understanding. However, in FIG. 9, there are six first straight portions 212 and two second straight portions 213, respectively.

  In order to satisfy the condition (A), the conductor layer 210 needs to be configured so that there are many straight portions and fewer curved portions. Here, in order to increase the linear portion, it is necessary not only to reduce the displacement in the X-axis direction or the Y-axis direction but also to reduce the displacement in the Z-axis direction. Therefore, the thread-like member 211 is not sewn to the three-dimensional structure 100 by sewing the thread-like member 211 to the three-dimensional structure 100, but the thread-like member 211 is attached to the three-dimensional structure 100 using the fixing thread 214 and the auxiliary thread 215. A method of fixing and fixing the conductor layer 210 to the three-dimensional structure 100 is employed. According to this method, the displacement in the Z-axis direction of the thread-like member 211 constituting the conductor layer 210 is reduced, and the radio wave can be prevented from being greatly attenuated.

  On the other hand, in the method in which the thread-like member 211 is sewn to the three-dimensional structure 100 and the conductor layer 210 is fixed to the three-dimensional structure 100, the displacement of the thread-like member 211 constituting the conductor layer 210 in the Z-axis direction increases. The radio wave is greatly attenuated in the part where is large. Moreover, in this method, in the part which the 1st straight line part 212 and the 2nd straight line part 213 cross | intersect, both straight line parts are arrange | positioned on both sides of the three-dimensional structure 100, and both straight line parts may not contact. is there. As a result, there is a possibility that the transmission efficiency of radio waves is reduced and the transmission unevenness of radio waves is increased.

  In order to satisfy the condition (B), it is necessary to provide the conductor layer 210 with flexibility in addition to adopting a flexible material for the three-dimensional structure 100. For this reason, instead of a method of forming the conductor layer 210 by hollowing out the opening from the metal plate, a method of forming the conductor layer 210 by the thread-like member 211 that is a thread-like member having conductivity is adopted. Hereinafter, a method of forming the mixed layer so as to satisfy the conditions (A) and (B) will be described. First, the thread-like member 211, the fixing thread 214, and the auxiliary thread 215 will be described.

  The thread-like member 211 includes a member having conductivity, and is an elongated member like a thread. The thread member 211 is, for example, a conductive thread or a metal wire. The conductive yarn is a yarn made conductive by plating metal or weaving metal powder on a yarn made of animal or plant fibers or artificial fibers. As the metal wire, a metal such as a copper wire or a nichrome wire is processed into an elongated shape. The cross section of the thread-like member 211 does not need to be circular, and may be a shape like an elongated rectangular parallelepiped. That is, the thread-like member 211 may be an elongated plate-like member. In the present embodiment, the thread member 211 is assumed to be a conductive thread. In the present embodiment, an example in which the conductor layer 210 is formed by one thread-like member 211 will be described.

  The fixing thread 214 is a thread for fixing the thread-like member 211 to the three-dimensional structure 100. The fixing thread 214 straddles the thread-like member 211 in a state where the thread-like member 211 is disposed on one surface of the three-dimensional structure 100 (the surface having the larger coordinate in the Z-axis among the two surfaces of the fabric 110). The three-dimensional structure 100 is sewn. The fixing thread 214 is, for example, a thread made of artificial fiber.

  The auxiliary thread 215 is a thread used to assist the fixing of the thread-like member 211 to the three-dimensional structure 100 by the fixing thread 214. The auxiliary yarns 215 are arranged in a zigzag manner at positions facing the thread-like member 211 on the other surface of the three-dimensional structure 100 (the surface of the two surfaces of the fabric 120 having the smaller coordinate in the Z axis). The auxiliary thread 215 is fixed to the three-dimensional structure 100 across the fixing thread 214 on the other surface of the three-dimensional structure 100. The auxiliary yarn 215 is, for example, a yarn made of artificial fiber.

  Next, a method of fixing the thread member 211 to the three-dimensional structure 100 using the fixing thread 214 and the auxiliary thread 215 will be described.

  First, as shown in FIG. 9, the thread-like member 211 is arranged on one surface of the three-dimensional structure 100 so as to form a mesh-like opening. That is, the thread-like member 211 is arranged on one surface of the three-dimensional structure 100 so as to constitute a plurality of first straight portions 212 extending in the X-axis direction and a plurality of second straight portions 213 extending in the Y-axis direction. Is done. On the other hand, as shown in FIG. 10, the auxiliary thread 215 is disposed in a zigzag manner so as to straddle the thread-like member 211 at a position facing the thread-like member 211 on the other surface of the three-dimensional structure 100.

  Then, as shown in FIG. 9, the fixing thread 214 is sewn to the three-dimensional structure 100 so as to straddle the thread-like member 211 on one surface of the three-dimensional structure 100. As a result, the fixing thread 214 fixes the thread-like member 211 in close contact with one surface of the three-dimensional structure 100.

  As shown in FIG. 10, the fixing thread 214 is sewn to the three-dimensional structure 100 so as to straddle the auxiliary thread 215 on the other surface of the three-dimensional structure 100. As a result, the fixing thread 214 fixes the auxiliary thread 215 in close contact with the other surface of the three-dimensional structure 100. Thus, in this embodiment, the thread-like member 211 and the three-dimensional structure 100 are sandwiched between the fixing thread 214 and the auxiliary thread 215 so that the thread-like member 211 is firmly fixed to the three-dimensional structure 100. . The auxiliary thread 215 may not be used for sewing the fixing thread 214 to the three-dimensional structure 100. In this case, the fixing thread 214 is sewn without straddling anything on the other surface of the three-dimensional structure 100. However, in this case, the portion straddled by the fixing thread 214 on the other surface of the three-dimensional structure 100 is easily broken. For this reason, in the present embodiment, a method is employed in which the auxiliary thread 215 is used to sew the fixing thread 214 to the three-dimensional structure 100.

  The sewing of the fixing thread 214 to the three-dimensional structure 100 may be performed manually by the user or by the user using a sewing machine. Such a sewing machine includes, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), a flash memory, and the like, and executes a sewing process according to a program stored in the ROM in advance. To do. That is, such a sewing machine sews the fixing thread 214 to the three-dimensional structure 100 while adjusting the positional relationship among the three-dimensional structure 100, the thread-like member 211, the fixing thread 214, and the auxiliary thread 215 according to the program. Execute.

  In this embodiment, since the fixing thread 214 is sewn to the three-dimensional structure 100, it is desirable that the thickness of the three-dimensional structure 100 is not too thick. For example, the three-dimensional structure 100 is preferably about 1 mm to 5 mm. In the present embodiment, the conductive property is imparted to the fabric 110 by fixing the conductor layer 210 formed of the conductive thread-like member 211 on the fabric 110. Moreover, in this embodiment, the conductive property 300 is provided to the fabric 120 by forming the conductor layer 300 on the fabric 120 by plating.

  As described above, in the present embodiment, the three-dimensional structure 100 including the fabric 110, the fabric 120, and the connecting yarn 131 that connects the fabric 110 and the fabric 120 is used as the dielectric layer constituting the transmission sheet. It is done. Therefore, according to the present embodiment, it is possible to manufacture a transmission sheet that has excellent flexibility and hardly deteriorates transmission characteristics when deformed.

  Moreover, in this embodiment, it is fixed on one surface of the cloth 110 so that at least a part of the thread-like member 211 is linear. Here, in the linear part of the thread-like member 211, radio waves and the like are not easily attenuated. Moreover, the conductor layer 210 is comprised by the threadlike member 211 which has a softness | flexibility. For this reason, according to this embodiment, the sheet structure 1400 which has a favorable electrical property and high softness | flexibility can be provided.

  In the present embodiment, the thread-like member 211 is fixed on one surface of the three-dimensional structure 100 by the fixing thread 214. For this reason, the thread-like member 211 is fixed on one surface of the three-dimensional structure 100 with a small displacement in the direction orthogonal to the three-dimensional structure 100 (Z-axis direction). Therefore, the linearity of the thread-like member 211 is maintained, and the radio wave transmission characteristics in the conductor layer 210 are improved. That is, according to the present embodiment, the electrical characteristics of the sheet structure 1400 are improved.

  In the present embodiment, the plurality of first straight portions 212 and the plurality of second straight portions 213 are in contact with each other, whereby the conductor layer 210 having a mesh-shaped opening is formed. Therefore, according to the present embodiment, it is possible to provide a sheet structure 1400 that has good electrical characteristics and high flexibility and can be applied to a transmission sheet.

  In this embodiment, a conductive thread is employed as the thread-like member 211. Therefore, according to this embodiment, it is possible to easily generate the sheet structure 1400 having good electrical characteristics and high flexibility.

(Embodiment 3)
In the second embodiment, the thread member 211 is fixed on the three-dimensional structure 100 using the fixing thread 214 and the auxiliary thread 215, and the conductor layer 210 is configured by the thread member 211. The example which gives is described. In the present invention, the method for imparting conductivity to the fabric 110 is not limited to this method. In the present embodiment, an example in which conductivity is imparted to the fabric 110 by configuring a part of the fabric 110 with conductive yarn will be described. More specifically, in the present embodiment, an example in which a three-dimensional structure 101 is formed by weaving conductive yarns and non-conductive yarns (ordinary yarns having no conductivity) and a conductor layer is provided in the three-dimensional structure 101. explain.

  FIG. 11 is a perspective view of a sheet structure 1500 according to Embodiment 3 of the present invention. As shown in FIG. 11, the sheet structure 1500 is configured by a fabric 140, an intermediate layer 130, and a fabric 150 being sequentially stacked. Here, the fabric 140, the intermediate layer 130, and the fabric 150 constitute the three-dimensional structure 101. In addition, the conductor layer 220 is provided in the fabric 140. Furthermore, the fabric 150 functions as a conductor layer (the conductor layer 300 in the first and second embodiments).

  FIG. 12 is a diagram showing the stitches of the fabric 140. FIG. 12 shows a state in which the fabric 140 is configured by knitting four yarns of the non-conductive yarn 141, the conductive yarn 142, the non-conductive yarn 143, and the non-conductive yarn 144. The conductive yarn 142 is a conductive yarn. The non-conductive yarn 141, the non-conductive yarn 143, and the non-conductive yarn 144 are non-conductive yarns, that is, yarns made of an insulator. The conductive yarn 142 constitutes a conductor layer 220 in the fabric 140. The conductor layer 220 is a layer having a mesh-like opening and composed of a conductor. The fabric 150 is configured by knitting conductive yarn (not shown). The conductive yarn (not shown) forms a conductor layer (conductor layer 300 in the first and second embodiments) not shown in the fabric 150. A conductor layer (not shown) is a layer composed of a flat conductor.

  Note that the three-dimensional structure 101 including the fabric 140, the intermediate layer 130, and the fabric 150 can be integrally formed using a knitting machine capable of double raschel knitting. In this case, for example, among the yarns used for double raschel knitting, a part of the yarns constituting the fabric 140 and all the yarns constituting the fabric 150 may be conductive yarns. As described above, in this embodiment, the conductive yarn is employed for some of the yarns used for weaving the fabric 140 to impart conductivity to the fabric 140, and the conductive yarn is applied to all the yarns used for weaving the fabric 150. By being adopted, conductivity is imparted to the fabric 150.

  As described above, in this embodiment, the three-dimensional structure 101 including the fabric 140, the fabric 150, and the connecting yarn 131 that connects the fabric 140 and the fabric 150 is used for the dielectric layer constituting the transmission sheet. It is done. Therefore, according to the present embodiment, it is possible to manufacture a transmission sheet that has excellent flexibility and hardly deteriorates transmission characteristics when deformed.

  In the present embodiment, the conductor layer 220 is configured in the fabric 140, and the conductor layer (not shown) is configured in the fabric 150. Therefore, according to this embodiment, the transmission sheet can have a simple configuration, and the flexibility of the transmission sheet can be increased.

(Modification)
As mentioned above, although embodiment of this invention was described, when implementing this invention, a deformation | transformation and application with a various form are possible.

  In the present invention, which part of the configuration, function, and operation described in the above embodiment is adopted is arbitrary. Further, in the present invention, in addition to the configuration, function, and operation described above, further configuration, function, and operation may be employed. Of course, materials, sizes, electrical characteristics, and the like that can be employed in the present invention are not limited to those shown in the above embodiment.

  For example, in the first embodiment, the example in which the sheet structure 1000 is applied to a transmission sheet used as a communication sheet has been described. In the present invention, the sheet structure 1000 can be applied to a transmission sheet used as a power supply sheet. When the transmission sheet supplies power by radio waves, the sheet structure 1000 can be employed. On the other hand, when this transmission sheet supplies electric power by a DC voltage, it is preferable that the conductor layer 200 constituting the sheet structure 1000 is constituted by a flat conductor. In this case, a predetermined voltage is applied between the conductor layer 200 and the conductor layer 300.

  In the present invention, the sheet structure 1000 can be applied to a transmission sheet used as a circuit sheet. In this case, the conductor layer 200 constitutes a wiring part of an electronic circuit (or an electric circuit), for example. That is, the conductor layer 200 is divided into a plurality of islands having the same coordinate in the Z-axis direction, and each of the plurality of islands constitutes a wiring in the electronic circuit. Thus, the conductor layer 200 may be divided into a plurality of electrically separated portions. On the other hand, the conductor layer 300 functions as a wiring to which a ground potential is applied, for example. Thus, the functions and shapes of the conductor layer 200 and the conductor layer 300 are not limited to the examples described in the embodiments. Moreover, when only one conductor layer is used in the transmission sheet, the sheet structure 1000 may not include the conductor layer 200 or may not include the conductor layer 300.

  In the first embodiment, the example in which the conductor layer 200 is formed by screen printing and the conductor layer 300 is formed by plating has been described. In the present invention, the method of forming the conductor layer 200 and the conductor layer 300 is not limited to this example. For example, the conductor layer 200 and the conductor layer 300 may be formed by screen printing, or the conductor layer 200 and the conductor layer 300 may be formed by plating.

  In the second embodiment, the method of fixing the conductor layer 210 formed by the thread-like member 211 to the three-dimensional structure 100 using the fixing yarn 214 and the auxiliary yarn 215 has been described. In the present invention, the method of fixing the conductor layer 210 constituted by the thread-like member 211 to the three-dimensional structure 100 is not limited to this example. For example, the conductor layer 210 constituted by the thread-like member 211 may be fixed to the three-dimensional structure 100 with an adhesive.

  Moreover, the method demonstrated in Embodiment 1-3 can be combined freely. For example, the conductor layer 200 may be fixed to the three-dimensional structure 100 by screen printing, and the conductor layer 300 may be fixed to the three-dimensional structure 100 using the fixing thread 214 and the auxiliary thread 215. Moreover, you may employ | adopt a different fixing method for every part which comprises the conductor layer 200 or the conductor layer 300. FIG. For example, the first straight part 212 extending in the first direction (X-axis direction) is formed in the fabric 140 by weaving, and the second straight part 213 extending in the second direction (Y-axis direction) is used as the fixing thread 214 and the auxiliary thread. You may fix on the fabric 140 using the thread | yarn 215. FIG.

  Embodiment 1 demonstrated the example in which the conductor layer 200 was formed in the pattern which has a square opening. In the present invention, the conductor layer 200 may be formed in a pattern having openings of other shapes (rectangle, rhombus, triangle, etc.). Moreover, the conductor layer 200 does not need to have an opening.

  In the first embodiment, the example in which the conductor layer 200 is formed by screen printing has been described. In the present invention, the method of forming the conductor layer 200 is not limited to this example. For example, the conductor layer 200 may be formed by other printing methods. Examples of other printing methods include letterpress printing, flexographic printing, offset printing, gravure printing, and ink jet printing. For example, the conductor layer 200 may be formed by bonding a sheet-like conductor onto the fabric 110 or the base layer 400 with an adhesive. The conductor layer 200 may be formed on the fabric 110 or the base layer 400 by plating.

  In the first embodiment, the example in which the base layer 400 or the cover layer 500 made of a synthetic resin is formed by drying the liquid synthetic resin injected and applied by spraying has been described. In the present invention, the method for forming the base layer 400 and the cover layer 500 is not limited to this example. For example, the base layer 400 and the cover layer 500 may be formed by bonding a sheet-like synthetic resin onto the fabric 110 or the conductor layer 200 with an adhesive. Alternatively, the base layer 400 and the cover layer 500 may be formed of a synthetic resin that is heated and melted and applied to the fabric 110 or the conductor layer 200 and solidified. Further, the base layer 400 and the cover layer 500 may be formed by printing using the various printing methods described above.

100, 101 Three-dimensional structure, 110, 120, 140, 150 Fabric, 111, 112, 113, 114, 141, 143, 144 Non-conductive yarn, 130 Intermediate layer, 131 Connecting yarn, 142 Conductive yarn, 200, 210, 220 , 300 Conductor layer, 211 Thread member, 212 First straight part, 213 Second straight part, 214 Fixing thread, 215 Auxiliary thread, 400 Base layer, 500 Cover layer, 600 Leaching area, 1000, 1100, 1200, 1300 , 1400, 1500 Sheet structure

Claims (13)

A sheet structure used by being incorporated in a transmission sheet for transmitting information or power,
Comprising a three-dimensional structure comprising a first fabric imparted with electrical conductivity, a second fabric, and a connecting thread connecting the first fabric and the second fabric;
Sheet structure. The three-dimensional structure is composed of double raschel knitting,
The sheet structure according to claim 1. In the first fabric,
A conductor layer formed by printing a paste-like conductor on the first fabric is provided,
The sheet structure according to claim 1 or 2. In the first fabric,
A base layer made of an elastic insulator covering the first fabric;
A conductor layer formed by printing a paste-like conductor on the base layer,
The sheet structure according to claim 1 or 2. In the first fabric,
It is composed of an insulator having elasticity, and a cover layer that covers the conductor layer is provided.
The sheet structure according to claim 3 or 4. The base layer is made of a synthetic resin having elasticity,
The sheet structure according to claim 4. The cover layer is made of a synthetic resin having elasticity,
The sheet structure according to claim 5. The synthetic resin having elasticity includes any of polyurethane synthetic resin, polyester synthetic resin, acrylic silicon synthetic resin, and fluorine synthetic resin.
The sheet structure according to claim 6 or 7. The conductor layer is formed by screen printing the paste-like conductor.
The sheet structure according to claim 3 or 4. In the first fabric,
A conductor layer made of conductive yarn fixed on the first fabric is provided,
The sheet structure according to claim 1 or 2. The first fabric is constituted by a knitted fabric in which conductive yarns are knitted,
The sheet structure according to claim 1 or 2. A method for manufacturing a sheet structure used by being incorporated in a transmission sheet for transmitting information or power,
Generating a three-dimensional structure comprising a first fabric, a second fabric, and a connecting thread that connects the first fabric and the second fabric;
Imparting electrical conductivity to the first fabric;
A manufacturing method of a sheet structure. Information or electric power is transmitted through a three-dimensional structure including a first fabric imparted with conductivity, a second fabric, and a connecting thread that couples the first fabric and the second fabric. Used for transmission sheet,
How to use a three-dimensional structure.

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