KR100768482B1 - Tube body and adhesive method for tube end - Google Patents

Abstract

A tube body and a method for bonding the end of the tube body are provided to prevent the tube body from being damaged due to low internal or external pressure by increasing bursting pressure by bonding an extended part with covering the end of the tube body. A tube body is composed of a fabric cloth(10) comprising upper and lower covers(11,12) and an inner space layer sealed up; an extended part(14) formed at the end of one of the upper and lower covers; and an air inflow/outflow port formed on at least one of the upper and lower covers to make the air flow in or out from the inner space layer. The extended part is bonded with covering the end of the other cover that does not have the extended part.

Description

Tube body and adhesive method for tube end

The following drawings attached to this specification are illustrative of preferred embodiments of the present invention, and together with the detailed description of the invention to serve to further understand the technical spirit of the present invention, the present invention is a matter described in such drawings It should not be construed as limited to

1 is a cutaway view schematically showing a tube body according to a preferred embodiment of the present invention.

2 is a perspective view schematically showing a tube body according to a preferred embodiment of the present invention.

3 is a cross-sectional view taken along line III-III 'of FIG. 2.

4 is a cutaway view schematically showing a tube body according to another preferred embodiment of the present invention.

5 is a perspective view schematically showing a tube body according to another preferred embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along the line VI-VI 'of FIG. 5.

7 is a perspective view schematically showing a tube body according to another preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10, 40, 70 ... fabric 11, 41, 71 ... top cover

12, 42, 72 ... Bottom cover 13, 43 ... Air outlet

14, 44, 74 ... Extension 15, 45 ... Inner Space Layer

16, 46 ... Boundary lines 18, 47, 48, 78 ...

100.200 ... tube body

The present invention relates to a method for adhering a tube body and an end of a tube body, and more particularly, a pressure in which a tube body bursts by an impact or pressure by bonding an end portion of a tube body used as an insulation, floating cover, and protective cover with an extension. It relates to a tube body and a tube body end bonding method with improved strength.

In general, a tube having a space layer for protecting the liquid material by floating on the upper surface of the liquid material, or for the effect of noise blocking, heat insulation, and impact mitigation has been used. Such tubes typically have an airtight structure and are hermetically sealed to form a space layer therein. In other words, it is used to seal the rim of the tube forming the body through heating, heat fusion, etc. where the above effects are needed. However, the tube body manufactured by joining the rims of the fabric, especially when made of a material such as polyethylene (PE), which is inelastic, is subjected to an internal pressure or an external pressure of about twice the pressure (2 to 4 psi). There is a problem that can not withstand the pressure burst. This bursting of the tubular body not only results in economic loss of having to replace the tubular body again, but also results in greater damage as the tube body loses its protection.

Accordingly, the present invention has been made in order to solve the above problems and to provide a better tube body, and the present invention has been devised under such technical background.

The present invention was devised to solve the above problems, and provides a tube body and a tube body end bonding method that can improve the strength of the burst pressure by bonding while wrapping the extension to the end where the burst phenomenon occurs by pressure. Its purpose is to.

In order to achieve the above object, the tube body according to the present invention, the upper cover and the lower cover, the fabric is sealed is formed an inner space layer; An extension part formed at one end of the upper cover or the lower cover; And an air outlet opening formed in at least one of the upper cover and the lower cover to allow the air to flow in and out of the inner space layer, wherein the extension part covers the other end of the cover which is not provided with the extension part and is bonded. It is characterized by having.

At this time, it is preferable that an adhesive portion is formed to bond the edges of the upper cover and the lower cover, and the end bonding of the upper cover and the lower cover is preferably performed by hot air, ultrasonic waves or high frequency heating.

According to the present invention, the upper cover and the lower cover are formed on a fabric manufactured using a tape yarn or a mono-filament yarn made of a single yarn of a polyolefin-based material. Extrusion coated tarpaulin; Or a waterproof coating coated with a fabric manufactured using a tape yarn or a monofilament yarn having a double yarn structure having a left and right welded structure of a polyolefin-based material.

In addition, it is preferable to have a structure in which a nylon film having a thickness of 10 to 30 micrometers (μm) is padded and laminated on at least one surface of the waterproof cloth to improve waterproofing and air permeability. If the thickness of the nylon film is less than the lower limit, it is not preferable due to lack of air permeability, and if the thickness exceeds the upper limit, it is not preferable because of the uneconomical cost increase.

The polyolefin-based material is preferably any one of high density polyethylene (HDPE) and polypropylene. On the other hand, the specification of the polyolefin-based material is preferably 500 to 2000 denier. If the lower limit of the specification of the polyolefin-based material is less than the lower limit, the strength is not preferable, and if the upper limit is exceeded, it is not preferable because of uneconomical cost increase. At this time, the weaving density of the fabric is preferably 10 to 30 neck per inch both warp and weft. If the fabric is less than the lower limit of the weaving density, the strength is not sufficient, and if the upper limit is exceeded, it is not preferable because it is uneconomical due to cost increase.

On the other hand, the extrusion coating is made of a polyolefin-based or co-polymer material, the polyolefin-based material is any one selected from low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and polypropylene, the extrusion coating It is preferable that the thickness of is 80 to 300 micrometers based on the cross section. If it is less than the lower limit of the thickness of the extrusion coating is not preferred due to lack of air defense, if it exceeds the upper limit it is not preferable because of uneconomical cost increase.

As an alternative to the material for the tube body of the present invention, the upper cover and the lower cover may be formed of polyvinyl chloride (polyvinyl chloride) in a fabric manufactured using a monofilament yarn or a multifilament yarn made of a single yarn structure of a polyester or nylon material. Or a fabric having a waterproof function coated with a liquid resin on a fabric manufactured using a monofilament yarn or a multifilament yarn made of a single yarn structure made of polyester or nylon material. It is waterproofed by laminating a nylon film with heat or adhesive on a fabric manufactured using a monofilament yarn or a multifilament yarn composed of a double yarn structure having a left and right welded structure of polyester or nylon material. Fabrics having a can be used.

In addition, the specification of the polyester-based or nylon-based material is preferably 210 to 2000 denier. If the lower limit of the specification of the polyester-based or nylon-based material is lower than the lower limit, the strength is not preferable, and if the upper limit is exceeded, it is not preferable due to the cost increase. At this time, the weaving density of the fabric is preferably 10 to 40 neck per inch both warp and weft. If the fabric is less than the lower limit of the weaving density, the strength is not sufficient, and if the upper limit is exceeded, it is not preferable because it is uneconomical due to cost increase.

The thickness of the film of the polyvinyl chloride-based or nylon-based material is preferably 25 to 300 micrometers based on the cross section. If the film is less than the lower limit of the film thickness, it is not preferable because it lacks air defense property, and if it exceeds the upper limit, it is not preferable because of uneconomical cost increase. On the other hand, the coating thickness of the liquid resin is preferably 25 to 300 micrometers based on the cross section. If it is less than the lower limit of the liquid resin coating thickness is not preferred due to lack of air permeability, if the upper limit is exceeded because it is uneconomical due to cost increase.

Tube body end bonding method for achieving the object of the present invention, (S10) preparing a fabric consisting of the upper cover and the lower cover; (S20) folding the fabric so that the upper cover and the lower cover correspond; And (S30) folding and extending an extension along a boundary line to surround the ends of the upper cover and the lower cover. On the other hand, after the step (S20), the step of adhering the edge of the upper cover and the lower cover; characterized in that it further comprises.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

1 is a cutaway view schematically showing a tube body according to a preferred embodiment of the present invention, Figure 2 is a perspective view schematically showing a tube body according to a preferred embodiment of the present invention, Figure 3 is FIG. III-III 'cross-sectional view.

Referring to the drawings, the tube body 100 according to the present invention, the upper cover 11 and the lower cover 12 is composed of a fabric 10, the inner space layer 15 is formed closed, the fabric 10 At least one air outlet 13 to allow air to flow in and out of the extended portion 14 and the enclosed space, which extends along the end of any one of the upper cover 11 and the lower cover 12 forming a). It is provided.

The upper cover 11 and the lower cover 12 are formed to correspond to each other, the end of any one of the upper cover 11 and the lower cover 12, that is, as shown in Figure 1, The extension part 14 is formed in three parts except the part which a cover abuts. For example, when the extension part 14 is formed in the lower cover 12, the upper cover 11 contacts the lower cover 12, and then the boundary line 16 separating the extension part 14 and the lower cover 12. By folding the extension 14 on the basis of the wrap around the end portion of the upper cover 11 is sealed structure. At this time, since the edge portion where the upper cover 11 and the lower cover 12 abut is most vulnerable to pressure, the extension portion 14 is preferably formed such that the edge portion of the cover is double-bonded (see A of FIG. 2). .

On the other hand, the adhesive portion 18 is set along the edge of the extension portion 14, the adhesive portion 18 is bonded to the upper cover 11 is made. On the other hand, although not shown, it is apparent that the entire area of the extension part 14 may be set as an adhesive part and may be surface bonded to the upper cover 11.

The air outlet 13 is provided to inject air into the inner space layer 15 formed by sealing the upper cover 11 and the lower cover 12, the upper cover 11 and It is formed by connecting the outside of the lower cover 12 and the inner space layer 15.

On the other hand, in the drawings represented in the present specification, the air outlet 13 is schematically represented and the number thereof is also expressed as one, but is not limited thereto and is generally used as long as it has a structure capable of injecting air from the outside. Air outlets of the type can also be used, and the number can also be selectively employed.

In addition, a cap (not shown) provided at the inlet of the air outlet opening 13 to prevent the air injected into the inner space layer 15 from leaking to the outside prevents the material from flowing out to the outside. Any form may be used as long as it has a function, and thus, the drawings are not separately shown in the drawings.

Optionally, in the present specification, the shape of the tube body 100 is represented by a rectangle, but is not limited thereto, and may be employed in various polygonal forms such as a circle, a triangle, and a pentagon.

At this time, the tube body 100 shown in Fig. 2 and 3, respectively, as a state in which air is injected into the inner space layer 15 is used as a heat insulating, floating and protective cover. That is, the tube body is used according to the user's choice by having physical properties such as heat insulation, water resistance and shock absorption. In addition, when the tube body is not in use, it is converted to a state where no air is injected, thereby ensuring ease of storage.

It is preferable that the tube body joining of this invention is performed by hot air, an ultrasonic wave, and high frequency heat compression.

The fabric 10 consisting of the upper cover 11 and the lower cover 12 of the tube body according to the present invention is produced using a tape yarn or monofilament yarn made of a single yarn of a polyolefin-based material Extrusion coating on the fabric is made of waterproof, airproof tarpaulin.

At this time, the polyolefin-based material is preferably any one of high density polyethylene (HDPE) or polypropylene (polypropylene), the specification of the high density polyethylene and polypropylene is more preferably 500 to 2000 denier. Further, the weaving density of the fabric is preferably 10 to 30 necks per inch for both warp and weft yarns.

On the other hand, the fabric made of the single yarn structure can be replaced by a left and right treated double yarn structure. In addition, a single yarn and a double yarn structure can be adopted simultaneously. For example, the fabric in which the warp yarn in the vertical direction and the weft yarn in the horizontal direction cross each other are woven, and the warp yarn may have a single yarn structure, and the weft yarn may have a double yarn structure.

As such, the tape yarn or monofilament yarn used as warp and weft yarn has a single yarn or a double yarn structure and can be made of various types of fabrics. Here, since the gist of the present invention is not a manufacturing method using a warp and weft yarn, various modifications made of such a configuration can be employed and can be selectively employed by a user. In addition, the use of the left and right welded double yarn structures reduces the weight of the cover relative to the top and bottom welded double yarn structures, thereby reducing the cost of the fabric to be manufactured.

Therefore, the tape yarn and monofilament yarn preferably have a single yarn or a double yarn structure made of any one of polyolefin-based materials selected from high density polyethylene and polypropylene.

On the other hand, it is possible to form a coating layer by the extrusion method on at least one side of the fabric so that the fabric is waterproof and airtight. The coating layer is preferably a polyolefin-based or polymeric polymer material is used. At this time, the polyolefin-based material used for the coating layer is preferably any one selected from low density polyethylene, linear low density polyethylene, and polypropylene. The coating layer is preferable because it can make the fabric have a waterproof, air-proof function. In addition, the extrusion coated tarpaulin may be prepared as a laminate padded with a nylon film of 10 to 30 micrometers thick. The extrusion coating layer preferably has a thickness of 80 to 300 micrometers on a cross-sectional basis.

The upper cover and the lower cover may be a polyvinyl chloride (PVC) -based film is thermally laminated on a fabric manufactured using monofilament yarn or multifilament yarn made of polyester or nylon-based single yarn. Alternatively, the fabric may be made of a tarpaulin coated with a liquid resin on the fabric surface, or may be made of a tarpaulin in which the nylon-based film is laminated using heat or an adhesive.

The polyester or nylon yarn is preferably 210 to 2000 denier, and the weaving density of the fabric is more preferably 10 to 40 necks per inch for both warp and weft yarns.

On the other hand, the fabric made of the single yarn structure can be replaced by a left and right treated double yarn structure. In addition, a single yarn and a double yarn structure can be adopted simultaneously. For example, a warp yarn may have a single yarn structure, a weft yarn may have a double yarn structure, and a weft yarn may have a double yarn structure on a fabric in which a vertical warp yarn and a horizontal weft yarn cross each other and are woven.

As such, monofilament yarns and multifilament yarns used as warp and weft yarns have a single yarn or a double yarn structure and can be made of various types of fabrics. Here, since the gist of the present invention is not a manufacturing method using a warp and weft yarn, various modifications made of such a configuration can be employed and can be selectively employed by a user.

On the other hand, the thickness of the film of the polyvinyl chloride-based or nylon-based material is 25 to 300 micrometers based on the cross section, the coating thickness of the liquid resin is preferably 25 to 300 micrometers based on the cross section.

Figure 4 is a cutaway view schematically showing a tube body according to another preferred embodiment of the present invention, Figure 5 is a perspective view schematically showing a tube body according to another preferred embodiment of the present invention, Figure 6 VI-VI 'sectional drawing of FIG.

Referring to the drawings, the upper cover 41 and the lower cover 42 is provided with a fabric 40, an extension 44 and the air outlet 43 is provided. However, the adhesive structure of the upper cover 41, the lower cover 42 and the extension portion 44 constituting the tube body 200 is different from the above-described embodiment will be described in detail below.

As shown in FIG. 4, an adhesive part 47 is further provided at edges of the upper cover 41 and the lower cover 42. The bonding is performed by hot air, ultrasonic waves, and high frequency heating and pressing, and the edges of the upper cover 41 and the lower cover 42 are bonded to the extension part 44 formed on the upper cover 41 or the lower cover 42. ) Is once again bonded. That is, since the end of the fabric 40 is double bonded, the sealing property is improved, and the structure of the tube body 200 due to pressure can be prevented more effectively. The boundary line 46 divides the extension part 44 from the cover, and the extension part 44 is folded along the boundary line 46.

Additionally, the edges of the upper cover 41 and the lower cover 42 are adhered to each other to bond the edges of the cover, which are vulnerable to pressure, but the edges of the cover are extended by the extension part 44 so as to have improved sealing property. It is preferable that it is formed to be more adhesive. An adhesive part 48 is set along an edge of the extension part 44, and the adhesive part 48 is bonded to the upper cover 41. On the other hand, although not shown, it is apparent that the entire area of the extension part 44 may be set as an adhesive part and thus may be surface bonded to the upper cover 41.

In FIGS. 1 and 4, the fabrics 10 and 40 have a structure in which the upper cover 11 and 41 and the lower cover 12 and 42 are integrally formed, but the upper cover 71 and the lower cover 72 are separated. It is also possible to adopt a structure made of a modified form (see Fig. 7). That is, the extension portions 74 extending along the edges of the upper cover 71 or the lower cover 72 are provided at four portions, respectively, and the upper cover and the lower cover are positioned to correspond to each other, and then the extension portion 74 is provided. It is made by a bonded structure, or after the edge of the cover is bonded to form a closed structure by the bonding of the extension portion 74 again. As shown, the adhesive region 78 set at the end of the extension portion 74 may be bonded to the upper surface of the upper cover 71. On the other hand, although not shown, all of the extension portion 74 may be set as an adhesive region to be in surface contact with the upper surface of the upper cover (71).

On the other hand, the above-described extension portion 14, 44, 74 is preferably the same as the material of the upper cover or the lower cover, but is not limited to this, any material can be employed as long as it can seal the end of the fabric.

Hereinafter, with reference to the drawings will be described in more detail with respect to the tube body end bonding method of the present invention.

First, the fabric 10 consisting of the upper cover 11 and the lower cover 12 is prepared. In this case, the fabric is any one selected from a tape yarn, a monofilament yarn, and a multifilament made of a polyolefin-based or polyester-based material, and has a single yarn or a double yarn welded to the left and right sides, and includes an upper cover 11 or a lower cover 12. Extension portion 14 is provided at the edge of the).

Subsequently, the fabric 10 is folded so that the upper cover 11 and the lower cover 12 correspond to each other. Preferably, it is folded based on the boundary line 16 which separates the extension part 14 and the cover.

Finally, the extension part 14 is folded and bonded along the boundary line 16 so as to surround the ends of the upper cover 11 and the lower cover 12. The bonded fabric is hermetically sealed to form the inner space layer 15.

Meanwhile, in the process of adhering the extension part, the edges of the upper cover and the lower cover may be adhered, and then the extension part may be folded and adhered again to manufacture a tube body.

As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

As described above, according to the tube body and the tube body end bonding method according to the present invention, an extension part is provided at the end of the fabric to seal the fabric and wraps around the end portion so that the bursting pressure due to pressure is increased. It is not easy to be damaged by low internal or external pressure, and thus the rework cost can be reduced and economic effect can be expected, and it can be selectively used as a role of insulation, floating and protective cover.

Claims (12)

A top cover and a bottom cover, the fabric being closed to form an inner space layer; An extension part formed at one end of the upper cover or the lower cover; And And an air outlet opening formed in at least one of the upper cover and the lower cover to allow the air to flow in and out of the inner space layer. The extension part has a structure bonded to the other end of the cover covering the other end portion having no extension. The method of claim 1, Tube body, characterized in that further comprising an adhesive portion on the edge of the upper cover and the lower cover. The method of claim 2, An end portion of the upper cover and the lower cover has a structure bonded by hot air, ultrasonic waves or high frequency heating. The method according to any one of claims 1 to 3, The upper cover and the lower cover, Tarpaulin extruded and coated on a fabric made using a tape yarn or monofilament yarn made of a single yarn of a polyolefin-based material; or And a waterproof cloth coated by extrusion coating on a fabric manufactured using a tape yarn or a monofilament yarn having a double yarn structure having a left and right welded structure of a polyolefin-based material. The method of claim 4, wherein A tube body characterized in that a nylon film having a thickness of 10 to 30 micrometers is laminated on at least one side of the tarpaulin. The method of claim 4, wherein The polyolefin-based material is any one selected from high density polyethylene or polypropylene, the specification of the selected polyolefin-based material is 500 to 2000 denier, the weaving density of the fabric is characterized in that all of the warp weft is 10 to 30 neck per inch Tube body to say. The method of claim 4, wherein The extrusion coating material on the tarpaulin, A polyolefin-based or polymerized polymer material, wherein the polyolefin-based material is any one selected from low density polyethylene, linear low density polyethylene and polypropylene, characterized in that the extrusion coating has a thickness of 80 to 300 micrometers. The method according to any one of claims 1 to 3, The upper cover and the lower cover, A fabric obtained by thermally laminating a polyvinyl chloride-based film on a fabric manufactured using a monofilament yarn or a multifilament yarn made of a single yarn structure of a polyester or nylon material; A fabric in which a liquid resin is applied to a fabric made using a monofilament yarn or a multifilament yarn made of a single yarn structure of polyester or nylon material; And A fabric in which a nylon-based film is laminated by heat or adhesive to a fabric manufactured using a monofilament yarn or a multifilament yarn made of a double yarn structure having a left and right welded structure of a polyester or nylon material; Tube body, characterized in that it is produced as one of the selected fabrics. The method of claim 8, The specification of the polyester-based or nylon-based material is 210 to 2000 denier, and the weaving density of the fabric is 10 to 40 neck per inch in both warp and weft. The method of claim 8, The thickness of the film of the polyvinyl chloride-based or nylon-based material is 25 to 300 micrometers based on the cross-section, the coating thickness of the liquid resin is 25 to 300 micrometers based on the cross section. delete delete

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