WO2017204467A1 - Multi-sleeve for cable protection device and cable protection device including same - Google Patents

Abstract

The present invention relates to a multi-sleeve for a cable protection device and a cable protection device including the same. Specifically, the present invention relates to a multi-sleeve for a cable protection device and a cable protection device including the same, wherein the multi-sleeve not only can protect and more stably support cables used for a movable body, such as a working machine, an electronic device, an industrial robot, or a transport machine, which repeatedly moves, so as to prevent the cables from being damaged, but also has excellent durability so as not to be damaged even by repeated curved movement, thereby having high reliability. As a result, the multi-sleeve can prevent a process error and damage to cables due to dust, and are thus suitable for a process of producing a high-precision and high-purity product, such as a semiconductor wafer.

Description

Multiple sleeves for cable protectors and cable protectors including them

The present invention relates to a multiple sleeve for a cable protection device and a cable protection device comprising the same. Specifically, the present invention can prevent damage to the cables by protecting and more stably supporting the cables used in moving objects such as machine tools, electronic devices, industrial robots, conveying machines, etc. that perform repetitive movements. In addition, it has high durability and is not damaged by repeated bending movements, so it is highly reliable and can suppress process errors and cables damage caused by dust, which is suitable for the production process of ultra-precision and high-purity products such as semiconductor wafers. The present invention relates to a multi-sleeve and a cable protection device including the same.

Flexible cables and hoses (hereinafter, referred to as "cables"), such as electric wire cables, optical fiber cables, and fluid supply hoses, which are used for moving objects such as machine tools, electronic devices, industrial robots, conveying machines, etc. Since the cables may be damaged by the warping of the cables, friction between the cables, or tensile force and bending force applied to the cables, damage to the cables used for the moving body by protecting and stably supporting the cables. Cable protectors are used to prevent this.

Conventional cable protectors include flexible multiple sleeves including one or more pods into which cable cables, fluid supply hoses, and the like corresponding to the cables are inserted, and the multiple sleeves are typically designed to achieve flexibility. It may be made of a polymer material, and the upper flexible member and the lower flexible member constituting the multiple sleeves may be partially bonded to form the at least one pod.

However, the flexible multi-sleeve included in the conventional cable protection device is an upper flexible constituting the flexible multi-sleeve as it repeatedly bends when applied to a moving body such as a machine tool, an electronic device, an industrial robot, a conveying machine, and the like. The junction of the male member and the lower flexible member may be locally damaged, and a gap may be formed between the upper flexible member and the lower flexible member at the damaged joint, through which the interior of the pod is opened. Dust may leak to the outside, causing process errors in the production of ultra-precision and high-purity products, or adjacent cables may be damaged by friction with each other.

Therefore, by protecting and more stably supporting cables used in moving objects such as machine tools, electronic devices, industrial robots, conveying machines, etc., which perform repetitive movements, damage of the cables can be prevented and durability is also improved. As it is excellent and is not damaged by repeated bending movements, it is highly reliable and consequently suppresses process error and cable damage caused by dust, so that multiple sleeves for cable protection devices suitable for the production process of high precision and high purity products such as semiconductor wafers and There is an urgent need for a cable protection device including the same.

The present invention includes a multi-sleeve for the cable protection device that can prevent damage to the cables by protecting and more stably supporting the cables used in moving objects such as machine tools, electronic devices, industrial robots, conveying machines, and the like An object of the present invention is to provide a cable protection device.

In addition, the present invention has excellent durability and is not damaged by repeated bending movements, which is highly reliable, and consequently can suppress process errors and cables damage due to dust, which is suitable for the production process of ultra-precision and high-purity products such as semiconductor wafers. It is an object of the present invention to provide multiple sleeves for current protection devices and cable protection devices including the same.

In order to solve the above problems, the present invention,

Multiple sleeves for cable protection comprising one or more pods into which a cable, fluid supply hose or guide chain can be inserted and received, said multiple sleeves being adapted to the partial joining of the upper flexible member and the lower flexible member. And the pod is formed by an unbonded portion between the joint portions of the upper flexible member and the lower flexible member, and the upper flexible member is a stretchable layer made of a flexible resin, the stretchable layer of A wear-resistant layer disposed on each of the upper and lower surfaces and having a low coefficient of friction, and an adhesive layer formed by an adhesive composition bonding the elastic layer and the wear-resistant layer to each other, wherein the stretchable layer of the wear-resistant layer is The wear resistant layers disposed on the lower surface of the layer to form the inner surface of the pod are of equal or different lengths of spacing. And a plurality of wear resistant layer columns spaced apart from each other, wherein the outermost wear resistant layer columns on the left and right of the plurality of wear resistant layer columns have their outer ends equal from the outline of the left and right ends of the multiple sleeves, respectively. Or spaced at intervals of different lengths, wherein the lower flexible member has a laminated structure symmetrical with the upper flexible member, the gap formed between and at the ends and between the wear resistant layer columns included in the upper flexible member, and the lower flexible member. A plurality of sleeves are provided, in which the bonding portions are formed by bonding the adhesive compositions that each flow out between the wear-resistant layer columns included in the flexible member and through gaps formed at the ends thereof are bonded to each other.

Here, the wear-resistant layer forming the inner surface of the pod provides a multiple sleeve, characterized in that to satisfy the condition of the following equation (1).

[Equation 1]

y = ax + 0.15 [bd + 1] ± 0.15

In Equation 1,

d is the diameter (mm) of the circle having the same cross-sectional area as the maximum cross-sectional area of the cables inserted into any pod,

x is the width length (mm) of the wear resistant layer column forming the pod,

y is the interval between the wear resistant layer column and the other wear resistant layer column or the gap between the outermost wear resistant layer column ends in mm,

a is 0.08 to 0.12,

* b is 0.09 to 0.10.

In addition, the diameter (d) of the circle having the same cross-sectional area as the maximum cross-sectional area of the cable to be inserted into the pod is 3.8 to 10.0 mm, the width length (x) of the wear-resistant layer column forming the pod is 15 to 23 mm, The spacing between the wear resistant layer column and the other wear resistant layer column or the gap y of the outermost wear resistant layer column ends is 1.5 to 2.5 mm, providing multiple sleeves.

On the other hand, the thickness of the elastic layer is 0.2 to 0.4 mm, the thickness of the wear-resistant layer is 0.05 to 0.15 mm, the thickness of the adhesive layer is 0.025 to 0.075 mm, it provides a multiple sleeve.

And, the stretch layer provides a multiple sleeve, characterized in that containing a polyurethane resin.

Furthermore, the wear resistant layer provides multiple sleeves, characterized in that it comprises expanded polytetrafluoroethylene (ePTFE) resin.

In addition, the adhesive composition provides a multiple sleeve, characterized in that it comprises a hot melt.

The at least one wear-resistant layer includes a porous resin in which a plurality of micropores are formed, and at least some of the plurality of micropores includes antistatic particles.

Here, the antistatic particles provide a multiple sleeve, characterized in that it comprises one or more positively or negatively charged particles selected from the group consisting of conductive nano carbon, conductive nano metal, conductive polymer and ionomer.

In addition, the at least one wear-resistant layer comprises a polymer resin formed in a fine mesh form by combining small units in a chain or a net form, characterized in that the antistatic particles are attached to the fine mesh form tissue, Provide a sleeve.

Furthermore, in the bonding portion, both the adhesive layer and the stretchable layer is characterized in that the molten bonded to provide a multiple sleeve.

On the other hand, the multiple sleeves; A guide chain inserted into and received in one or more pods of the multiple sleeves; And clamps disposed at both ends of the multiple sleeves to fix and seal both ends of the pod.

The multi-sleeve for cable protection device according to the present invention is made of a flexible material and the cable is stably inserted into one or more pods of a specially designed shape, thereby protecting and supporting the cable more stably. It shows an excellent effect that can prevent damage of the kind.

In addition, the multi-sleeve for the cable protection device according to the present invention is highly reliable because it is durable through one or more pods of a specifically designed shape and is not damaged by repeated bending movements, resulting in process errors caused by dust. And an excellent effect of suppressing cable damage.

Figure 1 schematically shows one embodiment of a cable protection device according to the present invention.

FIG. 2 schematically illustrates one embodiment of the cable and the guide chain inserted into the multiple sleeves in the cable protection device shown in FIG.

FIG. 3 schematically illustrates the structure of the AA ′ cross section in FIG. 1.

Figure 4 schematically shows the cross-sectional structure of the clamp when the multiple sleeves according to the present invention is a multilayer.

Figure 5 schematically shows a cross-sectional structure and a manufacturing method of one embodiment of a multiple sleeve for a cable protection device according to the present invention.

FIG. 6 is an enlarged view of a portion partitioned by the solid line in FIG. 5.

Hereinafter, preferred embodiments of the present invention will be described in detail. However, the invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosure may be made thorough and complete, and to fully convey the spirit of the invention to those skilled in the art. Like numbers refer to like elements throughout.

Figure 1 schematically shows an embodiment of the cable protection device according to the present invention, Figure 2 is a view showing the cable and the guide chain is inserted into the multiple sleeves in the cable protection device shown in FIG. Figure 3 schematically shows the structure of the cross-section AA 'in Figure 1, Figure 4 schematically shows the cross-sectional structure of the clamp when multiple sleeves in accordance with the present invention is a multi-layer It is shown.

As shown in Figures 1 and 2, the cable protection device according to the present invention is one or more cables 200, guide chain 100, one or more that can be inserted and accommodated fluid supply hose (not shown), etc. Insert into a flexible multiple sleeve 500 comprising a pod 530, one or more pods 530 of the flexible multiple sleeve 500, preferably one or more outermost pods 530. And a guide chain 100 accommodated and a clamp 600 disposed at both ends of the flexible multiple sleeve 500 to fix and seal both ends of the pod 530.

The guide chain 100 is inserted into one or more pods 530 of the flexible multiple sleeves, preferably the outermost pod 530, to prevent sagging due to self-weight in the straight portion of the flexible multiple sleeves, and to flex It can perform the function of maintaining a constant radius of curvature in the part, it can be made of a material such as metal, plastic.

In addition, the clamp 600 may suppress the dust generated by friction between the inner surface of the pod 530 and the cables 200 inserted therein to be discharged to the outside, so that the ultra precision and high purity products such as semiconductor wafers may be prevented. It is suitable for use in production processes.

In addition, as shown in FIG. 3, the clamp 600 connects the guide chain 100 to the clamp and has an end cap 610 for sealing the end of the pod into which the guide chain 100 is inserted. In order to prevent the 500 from slipping out of the clamp, the anti-slip pad 620 may be further included to prevent slipping of the multiple sleeves 500. Here, the anti-slip pad 620 may be made of a soft rubber material to protect the cable, the bottom surface may be knurling treatment to prevent slipping.

Furthermore, as shown in FIG. 4, the multiple sleeves according to the present invention can be used in a multilayer structure in which two or more multiple sleeves are stacked with the same or different number of pods 530, and in this case, the multiple sleeve ends of the multiple layers The clamp 600 to be applied may also be formed in multiple layers. The clamp 600 applied to the multi-layered multiple sleeves includes an inner block 630 that fills the lateral void space of the multiple sleeves having a relatively small number of pods 530, and a lower clamp and an upper clamp to secure a space into which the multiple sleeves are inserted. It may further include a spacer 640 and the like inserted between.

FIG. 5 schematically illustrates a cross-sectional structure and a manufacturing method of one embodiment of a multiple sleeve for cable protection device according to the present invention, and FIG. 6 is an enlarged view of a portion partitioned by the solid line in FIG. 5.

As shown in FIG. 5, the multiple sleeve 500 according to the present invention may be formed by partial bonding of the upper flexible member 510 and the lower flexible member 520, and the upper flexible member 510. ) And a non-bonded portion between the joints of the lower flexible member 520, the pod 530 may be formed, wherein the upper flexible member 510 is made of a flexible resin such as polyurethane. Abrasion resistant layer made of a resin having excellent abrasion resistance, lubrication, etc., and a low friction coefficient on each of the upper and lower surfaces of the elastic layer 511, which relieve the stress acting upon repeated bending movement of the multiple sleeves. 512, 512 ′ may be formed by bonding an adhesive layer 513 formed from an adhesive composition such as hot melt, and the lower flexible member 520 may be formed in a symmetrical structure with the upper flexible member 520. It can be.

In addition, the wear resistant layers 512 'and 522' forming the inner surface of the pod 530 among the wear resistant layers 512, 512 ', 522 and 522' included in each of the flexible members 510 and 520 are the same or different. It may include a plurality of wear-resistant layer columns spaced at intervals of the length, the outermost wear-resistant layer columns of the left and right of the plurality of wear-resistant layer (512 ', 522') columns are each of their outer ends The plurality of sleeves 500 may be spaced apart from each other at the same or different lengths from the outlines of the left and right ends of the sleeve 500.

3 and 4, the upper flexible member 510 is bonded by an adhesive composition such as hot melt, which is eluted through a gap formed between the columns of the plurality of wear resistant layers 512 and 522 'and thermally bonded to each other. ) And the lower flexible member 520 may be locally bonded, and one or more pods 530 may be formed through which non-bonded portions between the joints may be inserted.

Since the inner surface of the pod 530 is made of wear- resistant layers 512 ', 522' made of a resin having excellent abrasion resistance, lubricity, etc., and a low friction coefficient, cables and the like inserted into the pod 530 are accommodated. The cables can be avoided or minimized from being damaged by friction, and the cables can be protected by allowing the cables to be easily inserted into the pod.

Specifically, the bonding is performed when the upper flexible members 510 and the lower flexible members 520 are laminated to each other by thermal fusion of an adhesive composition such as hot melt included in the respective adhesive layers 513 and 523, respectively. The hot melt portion may be thermally fused to an adhesive composition such as the hot melt at a high temperature and a high pressure. Preferably, the stretchable layers 511 and 521 are also melted together with the adhesive layers 513 and 523 formed from the adhesive composition at the bonded portion. As a result, the bonding strength may be further improved, and when the adhesive layers 513 and 523 and the elastic layers 511 and 521 are all made of the same urethane material, the bonding strength may be further improved.

The bonded portion is passed through a pair of rollers heated to 120 to 190 ℃, for example, after the first heat-sealed adhesive composition such as the hot melt in a pressurized state of 2 to 5 MPa, and then to 70 to 110 ℃ While passing between a pair of heated rollers, the adhesive composition such as hot melt may be secondary heat-sealed in a pressurized state of 2 to 5 MPa. Here, the second heat fusion may be further performed to improve the bonding strength of the portion joined by the first heat fusion and to remove surface wrinkles, etc. generated during the first heat fusion.

In particular, the wear resistant layers 512 ′ and 522 ′ may satisfy the condition of Equation 1 below.

[Equation 1]

y = ax + 0.15 [bd + 1] ± 0.15

In Equation 1,

d is the diameter of the circle (mm) with the same cross-sectional area as the maximum cross-sectional area of the cables inserted into any pod 530,

x is the width length in mm of the wear resistant layers 512 ', 522' forming the pod,

y is the interval between the wear resistant layer column and the other wear resistant layer column or the gap between the outermost wear resistant layer column ends in mm,

a is 0.08 to 0.12,

b is 0.09 to 0.10.

For reference, in Equation 1, [bd + 1] is a Gaussian function, and an integer discarding the prime of bd + 1.

The inventors have found that the wear- resistant layers 512 ', 522' form the pod according to the cross-sectional area of the cable that is inserted outside the condition of Equation 1, i.e., any pod 530. The width length (x) of the wear resistant layer 512 ', 522' columns and / or the spacing between the wear resistant layer column and another adjacent wear resistant layer column or the spacing y of the outermost wear resistant layer column ends In the case of less than the standard, the multiple sleeves for the cable protection device according to the present invention is greatly reduced in durability, in particular, because the durability of the joint of the upper flexible member and the lower flexible member is greatly reduced, so that the joint is locally The present invention was completed by empirically confirming that a gap may be formed between the upper flexible member and the lower flexible member in the damaged joint, and through the gap, the pod 530 may be damaged. Parts and dust can be discharged to the outside are causing a process error in a high-precision and high-purity product manufacturing processes, or respectively into the plurality of pods 530 and damage adjacent cables and the like to each other by friction.

On the other hand, in the multiple sleeve for the cable protection device according to the present invention, since each of the plurality of pods 530 can be inserted into the cable of a different cross-sectional area, each pod (assuming that the condition of Equation 1) is satisfied. Width x of the wear- resistant layer 512 ', 522' forming the pods, and / or the width of the different x and / or y, depending on the cross-sectional area of the cables inserted into the 530 The spacing between the wear layer column and the other alloy layer may be retained or the spacing y of the outermost wear layer column ends.

For example, the diameter d of a circle having the same cross-sectional area as the maximum cross-sectional area of the cables inserted into any pod 530 may be 3.8 to 10.0 mm, and the wear-resistant layer forming the pod ( 512 ', 522'), the width length (x) of the column is 15 to 23 mm, the spacing between the wear resistant layer column and the other wear resistant column or the gap (y) at the end of the outermost wear resistant layer column is 1.5 To 2.5 mm, the thickness of the stretchable layers 511 and 521 is 0.2 to 0.4 mm, the thickness of the wear resistant layers 512, 512 ', 522 and 522' is 0.05 to 0.15 mm, and the thickness of the adhesive layers 513 and 523 is 0.025 to 0.075 mm.

Since the wear resistant layers 512, 512 ′, 522, 522 ′ have excellent abrasion resistance, lubricity, and the like, the friction coefficient is low, when the wear layers 512, 512 ′, 522, 522 ′ are disposed on the inner surface of the pod 530, the wear layers 512, 512 ′, 522, 522 ′ It is possible to avoid or suppress damage caused by friction and at the same time suppress the occurrence of dust caused by the friction, while when disposed on the outer surface of the pod 530 is damaged by friction between the flexible multiple sleeve 500 It is possible to avoid or suppress this and at the same time suppress the generation of dust due to the friction.

The resin forming the wear resistant layers 512, 512 ', 522, 522' may be selected from, for example, polytetrafluoroethylene (PTFE), fluoroethylene propylene (FEP), polyfluoroalkoxy (PFA), and the like. Preferably polytetrafluoroethylene (PTFE), more preferably expanded polytetrafluoroethylene (ePTFE).

The expanded polytetrafluoroethylene (ePTFE) is a polymer material made by chemically bonding small units in the form of chains or nets, and has a porous structure in which micropores are formed, and has excellent heat resistance, chemical resistance, and a very low coefficient of friction. In particular, all chemicals are chemically resistant and their surfaces are smooth and their physical properties can be maintained over a wide temperature range.

However, since the expanded polytetrafluoroethylene (ePTFE) has a tendency to be charged with negative (-) charge and is easy to generate static electricity, dust in the air clings to the wear- resistant layers 512 and 522, or generated static electricity in the air. The discharge may cause a process error or the like, or may cause a signal or control error of a cable inserted into the pod 530.

Accordingly, the wear resistant layers 512, 512 ′, 522, 522 ′, in particular, the wear resistant layers 512, 522 disposed on the outer surface of the pod 530 may be antistatically treated. The antistatic treatment may be performed by dipping the material of the flexible multiple sleeve 500 into an antistatic agent or spraying an antistatic agent on the surface of the flexible multiple sleeve 500.

The antistatic agent may include an antistatic particle having a positive or negative charge such as conductive nano carbon or a metal or a conductive polymer or ionomer, a solvent in which the antistatic particle is dispersed, a surfactant which facilitates dispersion of the particle, and the like. .

Here, the conductive polymer or ionomer may be selected from polyacetylene, polypyrrole, polythiophene, polyphenylene, polyphenylene sulfide, polyaniline, and the like, and may preferably be a conductive polymer or ionomer including fluorinated particles. . In addition, the solvent may be a solvent such as an acrylic solvent such as acrylate and an alcohol solvent such as isopropyl alcohol.

After the antistatic agent penetrates into the micropores of the wear resistant layer, the solvent in the antistatic agent is volatilized, and the positively charged or negatively charged antistatic particles form the expanded polytetrafluoroethylene (ePTFE) constituting the wear resistant layer. By remaining in the micropores of, the chargeability of the expanded polytetrafluoroethylene (ePTFE) can be significantly lowered.

In addition, since the positively or negatively charged particles do not remain on the surfaces of the wear resistant layers 512, 512 ′, 522, 522 ′, they are also deposited on the structure of the internal fine meshes, and thus the wear resistant layers 512, 512 ′, 522, 522 ′. The antistatic function can be stably performed without lowering the physical properties of the wear resistant layers 512, 512 ′, 522, and 522 ′ without being removed by friction between the layers.

The hot melts included in the adhesive layers 513 and 523 are not particularly limited as long as they can be bonded by thermal fusion under the conditions described above. For example, polyurethane, thermoplastic polyurethane, polyethersulfone, polyamide, and ethylene vinyl Acetate-based hot melts can be applied.

EXAMPLE

After manufacturing multiple sleeves of specifications as shown in Table 1 below, one end of the seal was clamped and air was simultaneously injected into all the pods through the other end so that the junction of the upper flexible member and the lower flexible member was unbearable and localized. The air pressure at the time of bursting was measured. The measurement results are shown in Table 1 below.

	Example
New layer	Polyurethane (PU) resin, thickness 0.3mm
Wear Resistant Layer	Expanded polytetrafluoroethylene (ePTFE), thickness 0.1 mm
Adhesive layer	Thermoplastic Polyurethane Hot Melt, 0.05mm Thickness
Ford Inner Wear Resistant Column	6 columns, column width length (x) 19 mm, between end-of-wear layer columns and end spacing (y) 2 mm
Air pressure at the joint	0.30 MPa or more

As shown in Table 1, the multi-sleeve for the cable protection device according to the present invention was confirmed that the joint is not damaged even at high internal pressure because of the excellent durability of the joint of the upper flexible member and the lower flexible member, As a result, the joint is not damaged even after 10 million repeated bending movements, and dust inside the pod is leaked to the outside through a gap caused by the damage of the joint, causing process errors in the production process of ultra-precision and high-purity products. Each cable inserted into the plurality of pods and adjacent cables can be prevented from being damaged by friction with each other.

Although the present specification has been described with reference to preferred embodiments of the invention, those skilled in the art may variously modify and change the invention without departing from the spirit and scope of the invention as set forth in the claims set forth below. Could be done. Therefore, it should be seen that all modifications included in the technical scope of the present invention are basically included in the scope of the claims of the present invention.

Claims (12)

1. A multiple sleeve for a cable protector comprising one or more pods into which a cable, fluid supply hose or guide chain can be inserted and received,

   The multiple sleeves are formed by partial bonding of an upper flexible member and a lower flexible member,

   The pod is formed by an unbonded portion between the junctions of the upper flexible member and the lower flexible member,

   The upper flexible member is a stretchable layer made of a flexible resin, a wear-resistant layer disposed on each of the upper and lower surfaces of the stretchable layer and having a low coefficient of friction, and bonding them to each other between the stretched layer and the wear-resistant layer. Including the adhesive layer formed by the adhesive composition to make,

   The wear resistant layer disposed on a lower surface of the stretchable layer to form an inner surface of the pod includes a plurality of wear resistant layer columns spaced at intervals of the same or different length, and the plurality of wear resistant layers The outermost wear resistant layer columns on the left and right side of the column each have their outer ends spaced at equal or different lengths apart from the outlines of the left and right ends of the multiple sleeves,

   The lower flexible member has a laminated structure symmetrical with the upper flexible member,

   The bonding portion is bonded to each other by the adhesive composition flowing out between the gap formed between the end of the wear-resistant layer included in the upper flexible member and the gap formed between the end and the wear-resistant layer included in the lower flexible member are bonded to each other Is formed, multiple sleeves.
2. The method of claim 1,

   The wear-resistant layer forming the inner surface of the pod is characterized in that it satisfies the following Equation 1, multiple sleeve.

   [Equation 1]

   y = ax + 0.15 [bd + 1] ± 0.15

   In Equation 1,

   d is the diameter (mm) of the circle having the same cross-sectional area as the maximum cross-sectional area of the cables inserted into any pod,

   x is the width length (mm) of the wear resistant layer column forming the pod,

   y is the interval between the wear resistant layer column and the other wear resistant layer column or the gap between the outermost wear resistant layer column ends in mm,

   a is 0.08 to 0.12,

   b is 0.09 to 0.10.
3. The method of claim 2,

   The diameter (d) of the circle having the same cross-sectional area as the maximum cross-sectional area of the cables inserted into the pod is 3.8 to 10.0 mm, the width length (x) of the wear-resistant layer column forming the pod is 15 to 23 mm, the inner A multiple sleeve, characterized in that the spacing between the wear layer column and the other wear resistant layer column or the spacing y of the outermost wear resistant layer column end is 1.5 to 2.5 mm.
4. The method of claim 3,

   The thickness of the elastic layer is 0.2 to 0.4 mm, the thickness of the wear-resistant layer is 0.05 to 0.15 mm, the thickness of the adhesive layer is characterized in that the 0.025 to 0.075 mm, multiple sleeves.
5. The method of claim 1,

   The stretchable layer is characterized in that it comprises a polyurethane resin, multiple sleeves.
6. The method of claim 1,

   Wherein said wear resistant layer comprises expanded polytetrafluoroethylene (ePTFE) resin.
7. The method of claim 1,

   Wherein said adhesive composition comprises hotmelt.
8. The method of claim 1,

   At least one wear-resistant layer comprises a porous resin in which a plurality of micropores is formed, wherein at least some of the plurality of micropores, characterized in that the antistatic particles are included, multiple sleeves.
9. The method of claim 8,

   The antistatic particle is characterized in that it comprises one or more positively or negatively charged particles selected from the group consisting of conductive nano carbon, conductive nano metal, conductive polymer and ionomer.
10. The method of claim 1,

    The at least one wear-resistant layer comprises a polymer resin formed in a fine mesh form by combining small units in a chain or net form, and characterized in that the antistatic particles are attached to the fine mesh form tissue.
11. The method of claim 1,

    In the junction portion, both the adhesive layer and the stretch layer is characterized in that the melted and bonded, multiple sleeves.
12. Multiple sleeves of claim 1;

    A guide chain inserted into and received in one or more pods of the multiple sleeves; And

    And clamps disposed at both ends of the multiple sleeves to secure and seal both ends of the pod.

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