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Protective tube
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a technology of protective tubes and tubes, applied in the field of protective tubes, can solve the problem of additional costs
Inactive Publication Date: 2013-08-29
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Abstract
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Benefits of technology
The present invention relates to a protection tube for cables and other elongated elements. The tube is made of a braided thread and has at least part of its threads made of a heat shrink material. This feature allows for a simpler and faster way to secure the tube to the element it protects, as it doesn't require any additional elements. The heat shrink material can be applied to the tube using a hot melt resin or adhesive. The protection tube can be used on its own or in combination with other protection methods, such as braiding or knitting. The technical effect of this invention is to provide a protection tube that is secured to the element it protects in a faster and simpler manner, without needing to incorporate additional elements.
Problems solved by technology
One problem with the installation of these protection tubes is that they can move in respect of the elongated element it protects over the course of time.
This sheath presents the disadvantage of requiring an additional element aside from the sheath itself, the joint, to allow it to be secured to the element to be protected, which represents an additional cost.
Method used
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first embodiment
[0014] at least part of said threads is impregnated with said hot melt material. Preferably, all threads are impregnated with said hot melt material. In such case, said hot melt material is preferably a hot melt resin or adhesive, or any suitable material. For example, said hot melt resin or adhesive may be a polyurethane-based adhesive.
[0015]According to an alternative embodiment, at least part of said threads is made of a hot melt material. In this case, said hot melt material is synthetic rubber, or polyethylene, polypropylene, polyamide or polyester, with a low melt point.
DESCRIPTION OF PREFERRED EMBODIMENTS
[0016]Below is a description of preferred embodiments of the protection tube of the present invention by way of a non-limiting example.
[0017]According to a first embodiment, the protection tube of the present invention is a braided thread tube manufactured according to the following parameters:[0018]Number of spools: 32;[0019]Threads per spool: 2;[0020]Density: 25 stitches in...
second embodiment
[0026] the protection tube of the present invention can be carried out with a braiding machine in the following way:[0027]1) 3 spindle heads of PET polyester of 0.22 mm and 1 spindle head of hot melt thread of 0.18 mm; and / or[0028]2) 3 spindle heads of PET polyester of 0.22 mm.
[0029]All bobbins may be according to option 1) or may be 25% according to option 1) and the remaining 75% according to option 2), and any combination thereof.
[0030]The material of the protection tube may be polyester or any other plastic material with polyamide.
[0031]It must be stated that the protection tube of the present invention can be manufactured on circular gathering machines, circular warping machines, on braiding machines and on looms, using braiding, warp knitting, stitch gathering or fabric weaving techniques.
[0032]Also, the materials of the threads may be any plastic fibre, for example polyamide or polyester.
[0033]The method used for heating and shrinking the tube can be any conventional method, ...
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Abstract
The protection tube comprises a plurality of threads braided together or interwoven, and is characterised in that at least part of said threads comprises hot melt material. At least part of said threads is impregnated in said hot melt material or is made of hot melt material.It allows the protection tube to be joined, totally or partially, to the element to be protected without requiring the use of any additional element.
Description
[0001]The present invention relates to a protection tube, in particular for protecting cables, which is secured at one end, at both ends or across the entire length of the element to be protected.BACKGROUND OF THE INVENTION[0002]In the state of the art the use of protection tubes over elongated elements, for example car cables, is known.[0003]These protection tubes are made of a number of threads braided or knitted together, in such a way that they provide appropriate mechanical and thermal protection.[0004]One problem with the installation of these protection tubes is that they can move in respect of the elongated element it protects over the course of time.[0005]One solution for this problem is described, for example, in patent EP-A-0 784 181. This patent describes a braided sheath sleeve which includes a certain quantity of adhesive between the filaments of one expanded end of the sheath and which is surrounded by a joint made of hot shrink plastic material.[0006]To secure the ex...
Claims
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Application Information
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Patent Type & Authority Applications(United States)
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