KR100944051B1 - Line with flexibility - Google Patents

Abstract

The present invention relates to an elastic wire rod having an elastic space portion, and more particularly, to provide an elastic wire rod having an elastic space portion formed to be provided with a space portion for stretching therein while being provided with elasticity in the longitudinal direction.

An elastic wire rod having an elastic space according to the present invention, the wire rod is configured to have a stretch in the longitudinal direction, comprising: a basic elastic wire composed of a predetermined length by a plurality of first bent portions formed along the longitudinal direction; And at least one additional stretchable line configured to have a predetermined length by a plurality of second curved portions formed along a longitudinal direction, and to have a second curved portion inserted between the first curved portions of the basic stretched line and correspondingly installed. It is configured to provide a space for stretching between the line and the additional stretched line, wherein the basic stretched line and the additional stretched line is composed of a linear member having a conductivity to enable the transmission of a variety of signals, such as energization of current and voice, video It features.

According to this invention, since it is configured to have an elastic space portion therein by a plurality of elastic lines having a bent portion, the longitudinal elasticity of the elastic wire rod is doubled while the elastic action of the elastic line is easily performed to this space portion. In addition, since the inside of the flexible wire is not a clogging structure, it has flexibility in the direction orthogonal to the longitudinal direction, so that the cushioning is performed and the overall weight is reduced. Accordingly, by applying widely to basic materials such as smart clothing, small electronic devices, etc., which require electrical weight while being conductive, it is possible to expect a breakthrough in related industries.

Extension space part, basic extension line, additional extension line, elastic wire rod

Description

Flexible Wire Rod with Stretched Space Part {LINE WITH FLEXIBILITY}

The present invention relates to an elastic wire rod having an elastic space portion, and more particularly, to an elastic wire rod having an elastic space portion formed to be provided with a space portion for stretching therein while being provided with elasticity in the longitudinal direction.

In general, a heating wire used as a heat source of a heater is used as a metal wire such as a copper wire that generates heat by itself due to its high resistance value, but a heating wire made of a metal wire has physical properties due to overheating when a heat generating time passes for a certain time or when an overload is applied. There was a problem that the heat transfer efficiency is rapidly lowered or there is a risk of fire, and the resistance value is unstable due to oxidation due to prolonged use and the size of the magnetic field is increased, causing harmful electromagnetic waves to the human body.

Accordingly, in recent years, a heating wire made of carbon fiber as a conductive wire is used in most cases. The heating wire includes a conductive wire made of an aggregate of carbon fiber yarns, an insulating layer overlaid on the outer circumferential surface of the conductive wire, and wrapped around the outer circumferential surface of the insulating layer. It consists of an outer layer.

However, such a conventional heating wire also has a rigid conductive wire is arranged in the longitudinal direction, so it is not stretchable, and thus the heating wire can be applied only to a heater that does not require elasticity such as an electric blanket or an electric blanket. There is a problem that can not be easily applied to the active clothing required for those who work in winter or frozen warehouses.

Accordingly, the present applicant has proposed a flexible heating wire as shown in Korean Patent Registration No. 10-0663328 to solve the above problems.

The flexible heating wire is a heating wire 20 in which a thermally conductive outer layer is overlaid on the outside of the conductive wire formed by a plurality of carbon fiber yarns, as shown in FIG. 1, so that the conductive wire 22 is wound around the inner center of the heating wire. An inner line 26 is formed separately, and the outer layer 24 overlying the outer line 26 and the conductive line 22 is formed of a stretchable insulating material and expands and contracts according to the tensile force acting in the longitudinal direction of the heating wire. It is proposed to shrink.

As shown in FIG. 2, an outer skin layer 54 made of a flexible material formed of a linear member having a through hole therein, and a polymer material and a polymer inserted into the inner through hole of the outer skin layer 54 and having electrical conductivity are formed. The flexible heating wire 50 which consists of the conductive polymer resin layer 52 which has electroconductivity is proposed.

In addition, as shown in FIG. 3, the heating wire 60 has an outer shell layer 64 made of a flexible insulating material formed of a linear member having a through hole therein, and an inner line 62 made of a stretchable material formed inside the outer shell layer 64. And a through hole 66a formed in a straight line or a spiral shape in the inner line 62 and filled with a sol-type conductive solution 68 containing a conductive polymer material on the through hole 66a. And the like have been proposed.

According to the elastic heating wire proposed by the applicant as shown in Figure 1 to 3 can be used as a material that can be given elasticity in the longitudinal direction to produce active clothing, equipment, etc., or cables or products requiring stretching It can be used for various purposes such as the conductive line.

However, the flexible heating wires 20, 50, and 60 shown in Figs. 1 to 3 have inner lines 26, conductive polymer resin layers 52, and inner lines 62 at the inner centers, respectively, to fill the inner centers. It is formed in a clogging structure. Accordingly, since the total weight of the flexible heating wire is relatively increased, handling and use are inconvenient, resulting in an increase in manufacturing cost. In addition, there is a disadvantage of increasing the weight of the electric and heat-transfer products using such a flexible heating wire, making it difficult to manufacture and handling and increase the cost.

In addition, since the elastic heating wires 20, 50, and 60 shown in Figs. 1 to 3 have a clogging structure in which the inner center is filled as described above, it is difficult to contract and expand against external force acting in a direction perpendicular to the longitudinal direction. This weakness has a problem. This lack of cushioning has a disadvantage in that when the elastic heating wire is formed of a cloth or pad, the cushioning action in a direction orthogonal to the longitudinal direction is not smooth. In addition, if you want to use as a material of the clothing has a disadvantage that the touch is not very soft and remarkably poor.

The present invention has been conceived to solve the conventional problems as described above, by providing a space portion for expansion and contraction while being provided in the longitudinal direction, the elasticity in the longitudinal direction can be further improved, with respect to the longitudinal direction It is an object of the present invention to provide a stretchable wire rod having an elastic space that can be used in various directions because the overall weight is reduced and the cushioning action can be performed in an orthogonal direction.

An elastic wire rod having an elastic space portion for achieving the object of the present invention as described above, in the wire rod configured to have elasticity in the longitudinal direction, composed of a predetermined length by a plurality of first bent portions formed along the longitudinal direction Basic stretch line; And at least one additional stretchable line configured to have a predetermined length by a plurality of second curved portions formed along a longitudinal direction, and to have a second curved portion inserted between the first curved portions of the basic stretched line and correspondingly installed. It is configured to provide a space for stretching between the line and the additional stretched line, wherein the basic stretched line and the additional stretched line is composed of a linear member having a conductivity to enable the transmission of a variety of signals, such as energization of current and voice, video It features.

Here, the first curved portion and the second curved portion may be formed in a spiral shape, and may be configured to form a hollow space portion in a longitudinal direction at an inner center thereof in a state where the basic elastic line and the additional elastic line are coupled to each other. .

The first curved portion and the second curved portion may be formed to have a corrugated structure, and may be configured to provide a space portion for expansion and contraction between the first curved portion and the second curved portion.

The basic stretchable line and the additional stretched line may include a linear member formed of a shape memory alloy, and a conductive coating layer formed by coating any one metal selected from conductive metals on the outer surface of the linear member.

The basic stretchable wire and the additional stretched wire may include a fiber yarn and a conductive coating layer formed by coating and forming any one of a conductive metal on an outer surface of the fiber yarn.

The basic stretchable wire and the additional stretched wire may include a conductive linear member and a shape memory alloy coating layer formed by coating and forming a shape memory alloy on an outer surface of the conductive linear member.

In addition, the basic stretch line and the additional stretch line, the shape memory fiber yarn; It may include a conductive linear member that is integral with the shape memory fiber yarn and integrally conductive.

The basic linear axis and the additional elastic line may be an insulating layer coated on the outer surface of the conductive linear member.

The basic linear axis and the additional elastic line is formed of a material having a higher tensile strength, the number of bends per unit length different from each other so as to have a different stretching ratio, and the number of the flexion of the basic linear axis and the additional elastic line is less can do.

In addition, at least one stretch length control line is embedded along the longitudinal direction in a form that is expandable to the basic stretch line and the additional stretch line, and the stretch length control line is unfolded by a tensile force acting in the length direction. It can be configured to adjust the stretch length while the basic stretch line and the additional stretch line is no longer stretched.

On the other hand, it characterized in that it further comprises an outer shell layer formed on a material having a stretchable and insulating property and covered on the outer surface of the basic elastic wire and the additional elastic wire.

The envelope layer may include conductive particles or conductive yarns having conductivity.

The outer skin layer may be a synthetic resin coating layer having insulation and elasticity, or may be in the form of a hose fitted on the outer surface of the basic elastic wire and the additional elastic wire and having insulation and elasticity.

In addition, the outer skin layer may be a braided layer braided and braided by a plurality of fibers having insulation and elasticity.

The flexible wire rod having an elastic space according to the present invention as described above is configured to have an elastic space therein by a plurality of elastic wires having a bent portion, so that the elastic wire can be easily stretched to the space side of the elastic wire rod. The longitudinal stretch is doubled. In addition, since the inside of the flexible wire is not a clogging structure, it has flexibility in the direction orthogonal to the longitudinal direction, so that the cushioning is performed and the overall weight is reduced. Accordingly, it is possible to expect a significant development of the related field industry by applying a wide range of basic materials such as smart clothing, small electronic devices, etc., which have conductivity and require weight reduction.

Best Mode for Carrying Out the Invention Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, FIGS. 4A to 6B, and like reference numerals designate like elements in FIGS. 4A to 6B. Meanwhile, the drawings and detailed descriptions of configurations, operations, and effects that can be easily understood by those skilled in the art from general technology in each drawing are briefly or omitted, and are illustrated based on parts related to the present invention.

4A and 4B are a perspective view and an exploded perspective view showing a stretchable wire rod having a stretch space according to a first embodiment of the present invention.

As shown in FIGS. 4A and 4B, the flexible wire rod 500 having the elastic space part according to the present invention includes a basic elastic wire 510 and an additional elastic wire 520 provided at the basic elastic wire 510. It is configured to be stretchable in the longitudinal direction, and when the basic expansion line 510 and the additional expansion line 520 is provided with a space portion (not shown) for the expansion and contraction in the longitudinal direction It is configured to have a double and at the same time have elasticity in the direction orthogonal to the longitudinal direction.

The basic stretchable line 510 is configured to have a predetermined length by a plurality of first bent portions 511 formed along the longitudinal direction by the fine linear member 512.

The additional elastic line 520 is configured to have a predetermined length by a plurality of second bent portions 521 formed along the longitudinal direction by the fine linear member 522, similar to the basic elastic line 510. The second bend 521 is inserted between the first bends 511 of the 510 to be coupled to each other. At this time, the additional stretch line 520 is composed of at least one.

In addition, the basic elastic wire 510 and the additional elastic wire 520 is composed of a linear member having a conductivity to enable the transmission of current and the transmission and reception of various signals such as audio and video. For example, it may be composed of a conductive yarn such as fine copper wire, carbon fiber, fiber yarn coated with a conductive material, or optical fiber (POF) capable of transmitting signals.

At this time, the diameter of the linear member can be used without limitation depending on the purpose or purpose, but when used as a material of the garment is preferably a linear unit of nano unit approaching the commercialization stage, but at least a linear unit having a diameter of micro unit It is preferable to use a member. In this case, the linear member may itself be a conductive wire, or the conductive metal may be coated on the wire having no conductivity by various methods such as plating (various plating such as electricity and chemistry) and vapor deposition.

In addition, the basic stretchable wire 510 and the additional stretched wire 520 include insulating layers 513 and 523 formed on the outer surface thereof to electrically insulate the conductive linear members 512 and 522.

Meanwhile, the basic elastic line 510 and the additional elastic line 520 may form the first bent part 511 and the second bent part 521 in a spiral shape (coil spring shape) as shown in FIG. 4A. Can be. By the spiral first bent portion 511 and the second bent portion 521, the basic elastic line 510 and the additional elastic line 520 is installed in a hollow shape along the longitudinal direction at the inner center thereof in a state corresponding to each other It will form a space portion of.

The method of winding the basic elastic wire 510 and the additional elastic wire 520 in a spiral form may be formed by a device for winding a wire rod in a coil form, such as a micro spring manufacturing apparatus applied to the manufacture of small articles such as semiconductors. Can be.

5A and 5B are diagrams illustrating first modified examples of the stretchable wire rod having the stretchable space according to the first embodiment of the present invention. Specifically, FIG. 5A and FIG. 5B are schematic perspective views showing a modified form of the basic stretch line and the additional stretch line. .

5A is a view illustrating a basic stretch line and an additional stretch line applied to a stretchable wire rod having a stretch space according to the present embodiment, and as shown therein, the basic stretch line 510 and the additional stretch line 520 are shown in FIG. In order to have different stretching ratios, any one of the basic stretch lines and the additional stretch lines has different numbers of bends per unit length. At this time, by forming a stretch line having a smaller tensile strength of the bent portion of the basic line and the additional stretch line made of a material having a greater tensile strength, the amount of the flexion portion is relatively small and the tensile strength is greater by the tensile force acting in the longitudinal direction When first unfolded in a straight line, no other stretch line can be stretched to prevent elastic breakage or damage within a certain tensile force range.

On the other hand, the flexible wire 500 according to the present invention is a linear member formed of a shape memory alloy so as to return to the initial state before being stretched at a specific transformation temperature at the time of use, and any one metal of the conductive metal on the outer surface of the linear member This may be composed of a conductive coating layer is selected, coated, formed. In this case, the shape memory alloy for forming the linear member may be a shape memory alloy composed of a composition ratio well known in the art. And, if the conductive coating layer has a conductivity, various metals can be adopted, but the comparatively high conductivity, gold (Au), silver that can ensure safety even if applied to any article, such as clothing, heating wire, electrical and communication cables, etc. (Ag) and copper (Cu) are preferable.

On the other hand, the basic stretch line 510 and the additional stretch line 520, although not attached in a separate drawing, the conductive material that is selected and coated with any one metal selected from a fiber yarn and a conductive metal on the outer surface of the fiber yarn A wire rod composed of a coating layer can be used. At this time, the fiber yarn may be selected and applied to any one of natural fiber yarn and synthetic fiber yarn according to the purpose and use of the stretchable wire, aramid fiber (Aramid fiber) having a high tensile strength, toughness, and heat resistance will be preferable.

The conductive coating layer may be formed by coating a conductive metal or coating a conductive polymer resin by various coating methods such as plating (various plating such as electricity and chemistry), vapor deposition, and coating.

The conductive polymer resin is a material formed by mixing a polymer having high electrical conductivity with a polymer and forming a resin. The polymer material may be one or more selected from metal nanoparticles, metal oxides, and metal oxide particles, and the polymer may be a silicone resin. (silicone resin), polyester, polyethylene terephthalate or copolymers thereof may be selected.

In addition, the basic stretchable line 510 and the additional stretched line 520 may be configured to form a shape memory alloy coating layer by coating the shape memory alloy on the outer surface of the conductive linear member by a deposition method. When the basic elastic wire 510 and the additional elastic wire 520 are configured in such a structure, even when the flexible wire is stretched in use, it returns to the original state before being stretched due to the shape memory alloy coating layer when the specific transformation temperature is reached. Therefore, it can be conveniently used as a basic material for clothing, precision equipment, etc., which requires accurate state of return.

In addition, the basic stretch line 510 and the additional stretch line 520 are integrally fused with the shape memory fiber yarns 514 and 524 and the shape memory fiber yarns 514 and 524, as shown in FIG. 5B. It may be composed of a conductive linear member (515, 525) having. At this time, at least one of the shape memory fiber yarns 514 and 524 and the conductive linear members 515 and 525 are spun together. The shape memory fiber yarns 514 and 524 may be formed of a shape memory polymer resin, or may be formed by coating a shape memory polymer resin on a conventional fiber yarn. In this case, the shape memory polymer resin may be formed of a shape memory polymer resin that is transformed at a predetermined temperature. As the shape memory polymer resin, Norrex may be applied.

5C to 5F are views showing second modified examples of the stretchable wire rod having the stretchable space according to the first embodiment of the present invention. More specifically, the outer layer is added to the outside of the basic stretched line and the added stretched line. A schematic perspective view showing the form of a.

As shown in FIGS. 5C to 5F, the second modified example of the stretchable wire rod having the stretchable space portion according to the present invention is a stretchable material which is overlaid on the outer surface of the basic stretchable line 510 and the additional stretched line 520. The outer layer of 530 is further included. The outer skin layer 530 should have elasticity so as to be interlocked at the time of expansion and contraction of the basic elastic wire and the additional elasticity accommodated therein, and should have waterproofness to prevent the inflow of moisture into the inside and insulation to enable electrical insulation. .

And. The outer skin layer 530 may include a plurality of conductive particles having conductivity as shown in FIG. 5D, or may include a plurality of conductive yarns 532 as shown in FIG. 5F. As described above, the conductive particles 531 or the conductive yarns 532 included in the outer skin layer 530 are used when the flexible wire rod 500 according to the present embodiment is used as a signal transmission cable of a sound or communication device. The additional elastic line 520 performs a function as a noise preventing means for preventing noise in the process of transmitting signals. At this time, the conductive particles 531 may be composed of metal nanoparticles, metal oxides, metal oxide particles, and the like, the conductive yarn 532 is a fine metal wire, such as copper wire, carbon fiber, and fibers coated with conductive particles on the fiber yarn Four or the like may be selected and configured.

As an example of the above-described outer skin layer 530, it may be easily configured as a synthetic resin coating layer having elasticity and insulation. In this case, the material of the outer layer may be formed of a stretchable silicone resin (silicone resin) to ensure sufficient stretch, or may be formed of polyester, polyethylene terephthalate or a copolymer thereof.

Another example of the outer skin layer 530 is a hose shape 530a having a hollow portion made of a material having an insulating property and elasticity, which is fitted onto the outer surface of the basic elastic wire 510 and the additional elastic wire 520 as shown in FIG. 5E. It can be configured as.

As described above, when the outer skin layer 530 is formed of a synthetic resin coating layer or is formed in a hose form 530a, it is preferable to include the conductive particles 531 as noise preventing means.

5F illustrates another example of the outer skin layer 530. As shown in FIG. 5F, the outer skin layer may be configured of a braided layer 530b that is braided and braided by a plurality of fibers having insulation and elasticity. Such a braided layer 530b may be formed by a braiding machine that manufactures length members in the form of various laces such as sneaker laces using fiber yarns. That is, the combination of the basic stretch line 510 and the additional stretch line 520 in the center of the braid is configured to braid so that the fiber yarn 534, etc. are woven around it. At this time, when the conductive layer 532 of any one of fine metal wire, carbon fiber yarn, and the fiber yarn coated with conductive particles into the fiber yarn is braided together as a noise preventing means to the outer layer 530, the function to prevent noise. Can be done.

5G and 5H are diagrams illustrating a third modified example of the flexible wire rod having the elastic space part according to the first embodiment of the present invention. More specifically, FIG. 5G and FIG. Perspective view and an exploded perspective view.

As shown in FIGS. 5G and 5H, the third modified example of the stretchable wire rod having the stretchable space portion according to the first embodiment is longitudinally stretchable to the basic stretchable line 510 and the additional stretchable line 520. Along the at least one stretched length control line 540 is constructed.

The stretch length control line 540 is a first type of stretch length control line 540 by the tensile force acting in the longitudinal direction by reducing the quantity of the bends (511,521) than the basic stretch line 510 and the additional stretch line 520 first When unfolded, the primary and secondary stretch lines are no longer stretched, so the stretch length of the stretchable wire rod can be adjusted.

6A and 6B are views illustrating a stretchable wire rod having a stretchable space part according to a second embodiment of the present invention, and more specifically, perspective views illustrating a form of a basic stretchable line and an additional stretched line.

As shown in FIG. 6A, the stretchable wire rod 600 including the stretchable space part according to the second embodiment of the present invention has a basic stretch formed by a predetermined length by a plurality of first bends 611 formed along the longitudinal direction. The second bent portion 621 is formed between the line 610 and the plurality of second bent portions 621 formed along the longitudinal direction, and is sandwiched between the first bent portions 611 of the basic stretchable line 610. At least one additional elastic line 620 is coupled to each other, and the first curved portion 611 and the second curved portion 621 are formed to have a wavy structure.

If the waveforms of the first and second bent portions 611 and 621 are waveforms that are stretched according to the application of the tensile force acting in the longitudinal direction, they are sin, cosine, and pulse waves (rectangular wave, triangular wave, semi-square). Wave, Gaussian wave, etc.), sawtooth wave, etc. can be variously formed.

The coupling direction of the basic elasticity 610 and the additional elasticity 620 may be orthogonal to each other as shown in FIG. 6A or coaxial with each other as shown in FIG. 6B, and in addition, inclined at a constant angle. It can be configured in the form.

In addition, the basic stretchable wire 610 and the additional stretched wire 620 include an insulating layer formed on an outer surface thereof for electrical insulation of the conductive linear member. In addition, as shown in FIG. 5A of the first embodiment, the number of bends per unit length of the basic stretchable line 610 and the additional stretched line 620 may be different from each other to form different stretch ratios.

In addition, although not specifically described, it is a matter of course that the modified examples shown in the above-described first embodiment can also be applied to the flexible wire rod according to the second embodiment.

FIG. 7 is a diagram illustrating a stretchable wire rod having a stretch space according to a third embodiment of the present invention.

Referring to FIG. 7, the stretchable wire rod 700 having the stretchable space portion according to the third embodiment of the present invention is a material having elasticity and disposed along a longitudinal direction to form a space portion 741 for stretching in a central portion. A plurality of basic elastic lines 710 formed of a plurality of, the elastic line between the plurality of basic elastic lines between the plurality of basic elastic lines are knitted and knitted line 720 to form a cylindrical elastic body 740, and the elastic body ( The additional elastic line 730 is integrally woven on the elastic body 740 in the knitting process by the knitting line while being wound to have elasticity on the outer surface of the 740.

The basic elastic line 710 is arranged to form a skeleton to form a hollow inside after braiding by the knitting line 720 by arranging three or more flexible linear members to form a space portion 741 of a predetermined shape in the center. do. If the basic elastic line 710 has elasticity, various kinds of linear members formed of rubber, silicone, or the like may be applied.

The additional elastic line 730 is formed in a spiral or wavy form on the elastic body 740 to have elasticity in the longitudinal direction with respect to the tensile force. The additional stretchable wire 730 is formed of at least one insulated conductive wire. In general, a linear member having a synthetic resin insulating coating layer formed on the copper wire may be selected.

At this time, the additional stretch line 730 is formed of a wire rod having a larger cross-sectional area than the knitted line 720 is formed to protrude to the outside of the stretch body 740.

The additional elastic line 730 may be configured in various forms in addition to the above-described structure. For example, the shape memory alloy may be coated on the outer surface of the conductive linear member to form a shape memory alloy coating layer.

In addition, as another example of the extension line 730, it may be composed of a shape memory fiber yarn and a conductive linear member that is integrally fused with the shape memory fiber yarn and conductive.

On the other hand, the stretchable wire rod 700 according to the third embodiment has to be configured such that the stretch range per unit length of the stretchable body 740 is smaller than the stretch range of the additional stretch line 730, the extension length of the additional stretch line. That is, since the stretch range of the stretch body 740 is smaller than the stretch line 730, when the stretch body 740 is stretched to the maximum, the stretch line 730 is no longer stretched and damage or breaks the stretch line 730. To protect against

In addition, the knitted wire 720 forming the stretchable body 740 may include conductive particles having conductivity, or may include a conductive yarn in some strands of the knitted wire 720. Such conductive particles or conductive yarns may perform a function of blocking noise of a signal transmitted to the additional stretchable wire 730. In addition, it is a matter of course that the additional stretching line 730 may include the above-described conductive particles and conductive yarns.

In addition, a conductive polymer polymer coating layer for shielding electromagnetic waves may be formed on surfaces of the stretchable body 740 and the additional stretchable line 730.

8 is a view showing a modified example of the stretchable wire rod having the stretch space according to the third embodiment of the present invention.

Referring to FIG. 8, the stretchable wire rod 700 including the stretchable space part according to the third exemplary embodiment of the present invention further includes an auxiliary stretchable member 750 that is stretched independently in the stretchable body 740. The auxiliary elastic member 750 is inserted into and installed in a space provided in the center of the elastic body 740.

The auxiliary elastic member 750 is braided in the form of a string so as to have a hollow portion in the center. Such, the auxiliary elastic member 750 may be braided only with a fiber yarn or mixed with a conductive yarn in the fiber yarn.

In addition, the stretchable wire rod 700 according to the third embodiment may be formed by a braid for manufacturing length members having various lace shapes such as sneaker laces using fiber yarns. That is, the basic elastic wire 710 is supplied to the knitting machine while applying tension from below to upward, and the knitted wire 720 is supplied around the basic elastic wire to form an elastic body, and at the same time, The additional elastic line 730 is supplied in contact with the supply side, and the additional elastic line 730 is woven to the elastic body 740 by the knitting line 720 to be manufactured.

As described above, the stretched wire rod having a stretchable space portion according to a preferred embodiment of the present invention is shown according to the above description and the drawings, but this is merely described, for example, without departing from the technical spirit of the present invention. It will be appreciated by those skilled in the art that various changes and modifications are possible.

1 to 3 is a separate perspective view showing a conventional flexible wire,

4A and 4B are perspective views illustrating an elastic wire rod having an elastic space part according to a first embodiment of the present invention, and an exploded perspective view;

5A and 5B are views showing first modifications of the flexible wire rod having the elastic space part according to the first embodiment of the present invention;

5C to 5F are views showing second modified examples of the stretchable wire rod having the stretchable space portion according to the first embodiment of the present invention;

5G and 5H are views showing a third modified example of the stretchable wire rod having the stretch space according to the first embodiment of the present invention;

6A and 6B are views illustrating a stretchable wire rod having a stretch space according to a second embodiment of the present invention;

7 is a view showing a stretchable wire rod having a stretch space according to a third embodiment of the present invention;

8 is a view showing a modification of the stretchable wire rod having a stretch space according to a third embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

500,600,700: Elastic Wire Rod

510,610,710: basic stretch line

511,611: First bend

512,515,522,525: conductive linear member

513,523: insulation layer

514,524: Shape Memory Fiber Yarn

520,620,730: Various stretch lines

521,621: the second bend

530: outer layer

531: conductive particles

532: Challenger

534: fiber yarn

540: stretch length control line

720: knitting line

740: elastic body

750: auxiliary extension member

Claims (15)

In the wire rod configured to have a stretch in the longitudinal direction, A basic stretchable line configured to have a predetermined length by a plurality of first bent portions formed along the longitudinal direction; And Comprising a plurality of second bent portion formed along the longitudinal direction has a predetermined length and has at least one or more additional extension line which is installed correspondingly between the second bend between the first bent portion of the basic elastic line, It is configured to provide a space for stretching between the additional stretch line, The basic elastic wire and the additional elastic wire is a flexible wire rod having an elastic space portion, characterized in that consisting of a linear member having a conductivity to enable the transmission of current and the transmission and reception of various signals such as audio, video. The method of claim 1, The first curved portion and the second curved portion is formed in a spiral shape, characterized in that configured to form a hollow space portion along the longitudinal direction in the inner center in the state that the basic expansion line and the additional expansion line is coupled to each other Flexible wire rod with space. The method of claim 1, The first wire and the second bend is formed to have a corrugated structure, the elastic wire rod having an elastic space portion, characterized in that the space portion for stretching between the first bend and the second bent portion is provided. The method of claim 1, The basic stretchable line and the additional stretched line, the stretch space comprising a linear member formed of a shape memory alloy, and a conductive coating layer formed by coating any one metal selected from the conductive metal on the outer surface of the linear member Flexible wire rod with a part. The method of claim 1, And said basic stretchable wire and said additional stretched wire are composed of a fiber yarn and a conductive coating layer formed by coating and forming any one of a conductive metal on the outer surface of the fiber yarn. The method of claim 1, And said basic stretchable wire and said additional stretched wire comprise a conductive linear member and a shape memory alloy coating layer formed by coating and forming a shape memory alloy on an outer surface of said conductive linear member. The method of claim 1, The basic stretch line and the additional stretch line, Shape memory fiber yarn; An elastic wire rod having an elastic space part, comprising a conductive linear member integrally fused to the shape memory fiber yarn and having conductivity. The method of claim 1, The basic line axis and the additional stretch line is a flexible wire rod having an elastic space portion, characterized in that the insulating layer is coated on the outer surface of the conductive linear member. The method of claim 1, The basic linear axis and the additional elastic line is formed of a material having a higher tensile strength, the number of bends per unit length different from each other so as to have a different stretching ratio, and the number of the flexion of the basic linear axis and the additional elastic line is less An elastic wire rod having an elastic space portion, characterized in that. The method of claim 1, At least one stretched length control line is embedded along the longitudinal direction in a form stretchable to the basic stretched line and the additional stretched line, and the stretched length control line is stretched in a straight line by the tension force acting in the lengthwise direction. An elastic wire rod having an elastic space part, characterized in that the elastic length is adjusted so that the basic elastic wire and the additional elastic wire are not extended. The method according to any one of claims 1 to 10, An elastic wire rod having an elastic space portion further comprising an outer shell layer formed on a material having elasticity and insulation and overlaid on the outer side of the basic elastic line and the additional elastic line. The method of claim 11, The outer sheath layer is a flexible wire rod having an elastic space portion, characterized in that it comprises conductive particles or conductive yarns having conductivity. The method of claim 11, The outer skin layer is a flexible wire rod having an elastic space portion, characterized in that the coating layer of synthetic resin having insulation and elasticity. The method of claim 11, The shell layer is a flexible wire rod having an elastic space portion, characterized in that the hose is fitted on the outer surface of the basic elastic wire and the additional elastic wire and has insulation and elasticity. The method of claim 11, The outer skin layer is a flexible wire rod having a stretchable space portion, characterized in that the braided layer is braided by a plurality of fibers having insulation and elasticity.

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