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Zipper Chain
NO.:2863  Date:2010-9-25

The present invention discloses a zipper chain having a chain disposed separately on both sides of a fabric tape of a zipper.


A slide fastener or a zipper has the features of connecting an object or objects conveniently by opening or closing the zipper while providing a high reliability, and thus the slide fastener or zipper becomes an extensively used item in our daily life. Since the invention of zippers, zippers have become very popular and widely used in many areas including clothing, purses, sleeping bags, and tents, etc.


In general, a zipper has teeth chain disposed on a side of a tape, and a slider rides up and down between two teeth to open and close the zipper. Since the teeth are usually made of different materials, zippers are divided into metal zippers which are made of metals such copper and aluminum, nylon zippers which are made of nylon or polyester, and plastic zippers. In addition, some PVC zippers adopt ribs and slits for sliding the slider and some flat-tooth zippers adopt flat teeth for providing a smoother surface. There are various different kinds of zippers, and their manufacturing methods vary from each other. However, the ultimate purpose of these zippers is to connect or separate two sets of corresponding teeth by using the slider to open or close a zipper.


In a traditional zipper, regardless a nylon, metal, or plastic zipper, a teeth chain containing teeth (which are coil or spiral teeth for nylon zippers or equidistant identical teeth for metal and plastic zippers) is disposed on a side of a tape. The PVC zipper uses ribs and slits to close the teeth in the same direction, and each teeth chain of two tapes are provided for connecting the stitched object such as clothes and purses, etc.


The aforementioned method has been used for years to achieve the function of closing a zipper, but another side of the fabric tape is left unused, and thus the prior art zippers require further improvements.


In view of the shortcomings of the prior art, the inventor of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally invented a zipper chain in accordance with the invention.


Therefore, it is a primary objective of the present invention to provide a zipper chain to overcome the shortcomings of the prior art. Unlike the prior art that requires stitching four single-sided teeth chains onto the objects respectively in order to close a zipper for connecting two sets of objects, the preferred embodiment of the present invention simply requires two stitching processes (for sewing the outer sides), and thus the invention definitely can save the manufacturing time and provide a complete overall appearance.


While the invention has been described by way of examples and in terms of preferred embodiments, it is to be understood that the invention is not limited thereto. To the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.


In summation of the description above, the present invention complies with the patent application requirements and is submitted to the Patent and Trademark Office for review and granting of the commensurate patent rights.


More particularly for products with partitions such as a handbag, the invention just needs to connect the tape having teeth chains on both sides of the tape or work together with another traditional zipper to partially or selectively form a pulling device, so as to reduce the cutting and connecting (hot-pressing stitching) processes during the production of the zippers.

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