JP6700545B2 - Protective sleeve and manufacturing method thereof - Google Patents

Description

  The present invention relates to protective sleeves. In particular, the present invention relates to a protective sleeve that covers and protects a long object, and a manufacturing method thereof.

  Conventionally, when arranging a large number of wiring cords or long objects such as piping hoses in factory equipment, or when arranging long objects such as wiring cords and hoses in automobiles and ships, appearance and safety Due to problems such as the above, a protective sleeve that bundles adjacent objects into one is used.

  As such a protective sleeve, for example, a long tubular protective sleeve is known. Such a long protective sleeve is formed by weaving a tubular shape using warp threads and weft threads. In addition, the long protective sleeve is sold as, for example, a roll body that is pressed in the radial direction and is flatly folded, and that is wound in a roll shape once the protective sleeve is a starting point. A user who purchases the roll body pulls out the protective sleeve from the roll body by a predetermined length and cuts the roll sleeve, and then provides the long sleeve such as a large number of wiring cords and piping hoses.

  As a form of the protective sleeve, in addition to the above-mentioned tubular protective sleeve, a protective sleeve having a "V-shaped" cross section is also known. Such a protective sleeve is manufactured by weaving a sheet-shaped base material, and then passing it through a folding device and a heating chamber to warp the sheet-shaped base material.

  Since such a protective sleeve is used by appropriately cutting it according to the length of a long object such as a wiring cord or a piping hose, the length of the protective sleeve is matched to that of the long object. There was a problem that the weft was frayed from the part. When the weft is frayed in this manner, the frayed weft hangs down from the cut end of the protective sleeve and spoils the appearance. In addition, there is a risk that a person or an object will be caught by the hanging weft thread, which is not preferable from the viewpoint of safety. Further, when a person or an object is caught on the hanging weft, the weft is unraveled, and it becomes impossible to maintain a sufficient covering protection state for a long object such as a wiring cord or a piping hose.

  The present invention has been made to solve such a problem, and an object thereof is to provide a protective sleeve that can effectively prevent the weft from fraying from the cut end, and a method for manufacturing the same. And

  The above-mentioned object of the present invention is a protective sleeve for covering and protecting a long object, comprising a plurality of warp yarns arranged along a longitudinal axis and a plurality of warp yarns along a direction substantially perpendicular to the longitudinal direction of the warp yarns. A protective sleeve is provided, which comprises a base material formed by weaving arranged weft yarns, and the weft yarns include heat fusion yarns.

  In this protective sleeve, the weft thread is a composite thread including a plurality of thread materials, and the composite thread is composed of the heat fusion thread and a high melting point thread having a higher melting point than the heat fusion thread. preferable.

  Further, the composite yarn is preferably a twisted yarn of the heat fusion yarn and the high melting point yarn. Further, the composite yarn may be configured as an aligning yarn of the heat fusion yarn and the high melting point yarn.

  Further, the ratio of the heat fusion yarn to the composite yarn is preferably in the range of 10% to 30% by weight.

  Further, it is preferable that the heat fusion yarn is made of low melting point nylon fiber.

  Further, the material of the high melting point yarn is a material made of any one kind or a combination of two or more kinds of polyethylene (PE), nylon, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polypropylene (PP). Is preferred.

  The base material is preferably formed by weaving into a tubular shape.

  Further, the above-mentioned object of the present invention is a method for producing a protective sleeve for covering and protecting a long object, wherein a warp yarn and a weft yarn including a heat-sealing yarn are woven to obtain an extending direction of the warp yarn. And a heating step of heating the woven tubular base material to melt the heat-sealing yarn included in the weft yarn. This is achieved by the method of manufacturing the protective sleeve.

  In this method for manufacturing a protective sleeve, the weft yarn is a composite yarn including a plurality of thread materials, and the composite yarn includes the thermal fusion bonding yarn and a high melting point yarn having a higher melting point than the thermal fusion bonding yarn. It is preferably a twisted yarn.

  According to the present invention, it is possible to provide a protective sleeve that can effectively prevent the weft thread from fraying from the cut end, and a method for manufacturing the same.

It is a schematic structure perspective view of a protection sleeve concerning the present invention. It is a principal part enlarged view which shows the structure of the base material which comprises the protective sleeve shown in FIG. It is a schematic structure perspective view showing the modification of the protection sleeve concerning the present invention.

  Hereinafter, a protective sleeve according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a protective sleeve 1 according to the present invention. The protective sleeve 1 is a protective sleeve that covers and protects a long object. Specifically, when arranging and processing a large number of wiring cords, piping hoses, and other long items in factory equipment, or when arranging and processing long items such as wiring cords and hoses in construction machinery, automobiles, ships, etc. In terms of appearance and safety, for example, a protective sleeve used for the purpose of bundling adjacent things together or preventing oil from splashing from the hydraulic hose. As shown in FIG. 1, the tubular body has a tubular shape. Such a tubular protective sleeve is used by covering the surface of a long product by inserting one end of a long product such as a wiring cord or a piping hose from one open end. It should be noted that, for example, by separately using a binding means such as a binding band, the both are integrally fixed so that the installation position of the protective sleeve 1 with respect to the long object is not displaced.

  As shown in FIGS. 1 and 2, the protective sleeve 1 includes a plurality of warp threads 11 arranged along a longitudinal axis and a plurality of weft threads 12 arranged along a direction substantially perpendicular to the longitudinal direction of the warp threads 11. The base material 10 is formed by weaving and. The base material 10 is configured to have a tubular shape. The warp yarns 11 are yarns arranged along the longitudinal direction of the tubular substrate 10, and the weft yarns 12 are yarns arranged along the circumferential direction of the tubular substrate 10. Further, in FIG. 2, it is described that a gap is formed between the warp yarns 11 or between the weft yarns 12, but this is expressed by forming a gap in order to understand the configuration. In the actual protective sleeve 1, the warp threads 11 and the weft threads 12 are in close contact with each other.

  The weft thread 12 is a composite thread including a plurality of thread materials, and the composite thread is composed of a heat fusion thread and a high melting point thread having a higher melting point than the heat fusion thread. Here, the composite yarn may be configured as a twisted yarn of the heat fusion yarn and the high melting point yarn, or may be configured as an alignment yarn of the heat fusion yarn and the high melting point yarn. Further, the ratio of the heat fusion yarn to the composite yarn used as the weft yarn 12 is preferably set in the range of 10% to 30% by weight.

  The material of the heat fusion yarn constituting a part of the composite yarn is not particularly limited as long as it has a melting point lower than the melting point of the high melting point yarn, but for example, low melting point nylon fiber is preferably used. it can. Examples of commercially available heat-bonded yarns include a product name: Flor manufactured by Unitika Co., Ltd. having a melting point of about 120° C., a product name manufactured by Toray Co., Ltd.: Elder, and a product name manufactured by Fuji Spinning Co., Ltd.: Joiner. A heat-bonding yarn can be preferably used.

  The material of the high melting point yarn is not particularly limited as long as it is a material having a higher melting point than that of the heat fusible yarn. For example, polyethylene (PE), nylon, polyethylene terephthalate (PET), polybutylene terephthalate (PBT) It is preferable to use a material made of any one kind of polypropylene and polypropylene (PP) or a combination of two or more kinds.

  The warp yarn 11 is also made of a composite yarn including a plurality of thread materials. The composite yarn used as the warp yarn 11 is preferably formed of the same material as the high melting point yarn in the above-mentioned weft yarn 12. The composite yarn used as the warp yarn 11 may be configured to include the heat-fusible yarn and the high melting point yarn, similarly to the above-mentioned weft yarn 12.

  Further, the tubular base material 10 is formed by weaving the warp threads 11 and the weft threads 12 including the heat-sealing threads as described above, with the extending direction of the warp threads as the longitudinal axis (base material forming step). However, as the weaving method for the base material 10, for example, various weaving methods such as plain weave and satin weave can be adopted.

  The base material 10 formed in a tubular shape is subjected to heat treatment in order to melt the heat-sealing yarn included in the weft yarn 12 (heating step). The heat-fusible yarn melted by this heat treatment solidifies as the temperature decreases while penetrating into the high melting point yarns of the weft yarns 12 and the warp yarns 11 and the function of adhering the high melting point yarns of the weft yarns 12 together, 12 has a function of adhering the warp yarns 11 and the weft yarns 12 together, and even if the protective sleeve 1 is cut at an arbitrary position, it is possible to effectively prevent the weft yarns from fraying from the cut end. Become. The heat treatment can be performed, for example, by using a chamber-type heat treatment device and applying heat from the outside of the protective sleeve 1.

  Further, in the above-described embodiment, when the twisted yarn of the heat fusion yarn and the high melting point yarn having a higher melting point than the heat fusion yarn is used as the weft yarn 12, the weft yarn 12 includes the heat fusion yarn and the high melting point yarn. By having a structure in which they are held together, a strong fusion bonded structure can be obtained, and it is possible to effectively prevent the weft threads 12 from fraying from the cut end of the protective sleeve 1.

  Further, although the protective sleeve 1 has a tubular shape, it is not particularly limited to such a configuration, and as shown in the schematic configuration perspective view of FIG. The protective sleeve 1 may be configured as the tubular body. Such a protective sleeve 1 having a “V-shaped” cross-section is arranged, for example, in a plurality of warp threads 11 arranged along the longitudinal axis and in a direction substantially perpendicular to the longitudinal direction of the warp threads 11. It is formed by deforming the sheet-shaped base material 10 formed by weaving the weft threads 12 and the weft threads 12. The weft yarn 12 includes the above-described heat-fusible yarn and a high-melting-point yarn that has a higher melting point than the heat-fusible yarn and is rich in heat shrinkability. By shrinking the high-melting point yarn having a high heat-shrinkability together with the melting, the sheet-shaped base material 10 is wound around the axis L parallel to the warp yarn 11 to obtain the protective sleeve 1 in which the central space portion 13 is defined. be able to. As the high melting point yarn having a high heat shrinkability, for example, a polyester high shrinkage yarn having a heat shrinkage rate of 45% to 50% at 120° C. for 10 minutes can be preferably used.

  Such a protective sleeve 1 having a "V-shaped" cross-section, for example, opens the free end portion 14 along the axis L from the one end side 1a in order, and a plurality of wiring cords and the like that are bundled together are protected sleeve 1 The protective sleeve 1 is used by finally arranging it in the central portion and covering a plurality of wiring cords and the like with the protective sleeve 1.

  Further, in the above embodiment, the color of the surface of the protective sleeve 1 may be, for example, yellow, cream, blue, white or the like. By configuring the protective sleeve 1 to have such a color, for example, when the protective sleeve 1 is used for surface coating protection of a hydraulic hose, it is used that a minute damaged portion is generated in the hydraulic hose. Can inform the person. More specifically, since the base material 10 of the protective sleeve 1 is formed by weaving the warp yarn 11 and the weft yarn 12 including the heat-sealing yarn, for example, a minute crack or hole is formed in the hydraulic hose. When the oil is generated and oozes out from the hydraulic hose, the oil oozing out from the hydraulic hose passes between the warp threads 11 and the weft threads 12 (texture) of the base material 10 to expose the protective sleeve 1. It will be guided to the front side. The color of the surface of the protective cover 1 is configured such that the oil leaked from the hydraulic hose can be visually recognized as described above (for example, yellow, cream, blue, white, etc.), The oil guided to the exposed surface side of the protective sleeve 1 can be visually recognized as a stain on the surface of the protective sleeve 1, so that it is possible to inform the user that a minute damaged portion has occurred in the hydraulic hose. Therefore, it is possible to prevent the minute damaged portion from developing to such a size that the oil flows out vigorously.

1 Protective Sleeve 10 Base Material 11 Warp 12 Weft 13 Central Space 14 Free End

Claims (5)

A protective sleeve that covers and protects the hydraulic hose,
A plurality of warp yarns arranged along the longitudinal axis, and a base material formed by weaving a plurality of weft yarns arranged along a direction substantially perpendicular to the longitudinal direction of the warp yarns,
The weft yarn includes a heat fusion yarn,
The weft yarn is a composite yarn including a plurality of yarn materials, and the composite yarn is a heat-fusible yarn, and a twisted yarn of a high melting point yarn having a higher melting point than the heat-fusible yarn,
The ratio of the heat fusion yarn to the composite yarn is in the range of 10% to 30% by weight, and the protective sleeve is characterized.   The material of the high-melting point yarn is a material made of any one kind or a combination of two or more kinds of polyethylene (PE), nylon, polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polypropylene (PP). The protective sleeve according to claim 1.   The protective sleeve according to claim 1 or 2, wherein the heat fusion yarn is made of a low melting point nylon fiber.   The protective sleeve according to claim 1, wherein the base material is formed by weaving into a tubular shape. A method of manufacturing a protective sleeve for covering and protecting a hydraulic hose, comprising:
A composite yarn comprising a heat-fusible yarn and a twisted yarn having a higher melting point than the heat-fusible yarn, wherein the ratio of the heat-fusible yarn to the twisted yarn is in the range of 10% to 30% by weight. As a weft, by weaving the weft and the warp, a base material forming step of forming a tubular base material whose longitudinal axis is the extending direction of the warp,
A heating step of heating the woven tubular base material to melt the heat-sealing yarn included in the weft yarn.

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