ES2270780T3 - ZIP CLOSURE. - Google Patents

Abstract

Zip closure provided with a pair of zip closure bands (23, 23) to which coupling elements (1, 1) are attached along marginal areas facing a pair of support bands (10, 10) in the longitudinal direction and a cursor (17) that is susceptible to sliding along the coupling elements (1, 1) and which can couple or separate the coupling elements (1, 1) in which the coupling elements (1, 1) are formed of a synthetic resin monofilament, characterized in that a metal coating layer (20) is formed on an upper surface of the upper arm part of a coupling element (1) except for an outer side face of the same that can come into sliding contact with a guide tab (19) of the cursor (17).

Description

Zip closure.

Background of the invention 1. Field of the invention

The invention relates to a closure of zipper and more particularly to a zipper closure that includes coupling elements made of synthetic resin or metal provided with a surface coated with a layer of metal cladding so that they are lustrous and ornamental beautiful

2. Description of the related technique

According to a zip closure conventional disclosed in Japanese Patent Publication No. 7-110245, the entire surface of an element of helical coupling or zigzagging coupling element made of synthetic resin monofilament is coated with a metallic coating layer that presents a peculiar luster to the metal. According to a zipper closure released in the Japanese Patent No. 261380, a coupling element made in synthetic resin monofilament fixed to a support tape and an exposed area of a core cord that is inserted inside of the coupling element are coated with a layer of metal coating

In this last zip closure described, in which the exposed area of the coupling element that is seen is Coated metal clad layer as well as the closure of zipper on which the entire surface of the element of helical coupling or zigzagging coupling element It is coated with the metal coating layer, the layer of metal cladding formed on an outer face of the element of coupling is scratched by a guide tab when the cursor slide The reason is that some small burrs in a line of existing partition on an inner face of the guide tab of a cursor formed by die casting scratches the layer of metal coating formed in the coupling element and Spread its metallic powder. Therefore, if this closure of zipper is particularly used in clothing or bags that have to be fashionable, scratched metal dust adheres to the garment or bag. Therefore, certain people complain that this damages the value of the fashionable appearance of the garment or handbag. For this reason, it has been contemplated to improve the molding matrix for the manufacture of the cursor. However, no such invention has been invented. molding matrix capable of solving the previous problem.

The document EP-A-0 387 905 unveils coupling elements intended for use in a closure of zipper according to the preamble of claim 1 in the which, regardless of the quality of the material, a layer of metallic coating that presents excellent adhesiveness and a thickness between 0.001 and 1.0 µm has been formed simply and easy on the surface of an organ of elements of coupling, so that its surface receives the luster of a metal. The surface of the metal coating layer can be additionally formed with at least one coating layer of finishing in it. In addition, a zip closure is disclosed lightweight and flexible in which this organ of coupling elements is made of synthetic resin and provided with a metallic luster on its surface.

The document EP-A-0 299 500 unveils a photoreflective or luminous zipper closure that is provided with a photoreflective strip that includes a multiplicity of pearls of glass adhered to a row of coupling elements in each of a pair of support tapes. The strip extends longitudinally at least partly on the surfaces top of the row of coupling elements or runs from more extensive form on the surfaces of the elements to hide the elements in a substantially total way of sight when the zip closure is closed.

The document EP-A-0 384 318 unveils a Zip closure comprising a pair of support straps that carry rows of discrete coupling elements along their respective longitudinal inner edges and a cursor susceptible to reciprocating along the rows of elements to open and close the zip closure. A Decorative coating is deposited with heat and pressure on the coupling element and, specifically, extends so less partly in an extreme rear region of the element of coupling to ensure that the lining does not separate from the skin of the coupling element.

Summary of the invention

The invention has been achieved in view of the problems set forth above and an object of the invention is provide a zip closure that comprises an element of coupling in which when it is expected to form a layer of metallic coating on a coupling element made in synthetic resin or metal, the scratching phenomenon of the layer is avoided of metallic coating and the spreading of the metallic powder to cancel the formation of the metal coating layer on one side outer side of the coupling element with which it makes contact a guide tab of a cursor, which ensures a metal clad layer provided with an appearance beautiful.

Another object of the invention is to provide a Zip closure comprising a coupling element in the which avoids fears of spreading metal dust by also cancel the formation of the metal coating layer in an outer side face of a coupling head, which makes contact with a guide post for the coupling element, with which ensures a metal coating layer provided with A beautiful appearance.

And another object of the invention is to provide a zipper closure comprising a coupling element in which forms a metallic coating layer provided with a beautiful appearance different depending on it specifying the shape of the coupling element.

Another object of the invention is also provide a zip closure that comprises an element of coupling in which a metal coating layer is formed provided with a different beautiful appearance depending on it specifying the shape of the zip closure.

Another object of the invention is to provide a Zip closure in which you can make a layer of metal cladding formed in the coupling element function effectively specifying thread configuration sewing, knitting threads and knitting threads by warp for joining and fixing the coupling element to a tape of support.

And another object of the invention is to provide a zipper closure in which it can be effectively protected the metal coating layer formed on the surface of the coupling element by using a cursor formed by die casting or injection molding which, as already said, It has defects.

To achieve the above objectives, in accordance with the main aspect of the invention, a zipper closure is provided provided with a pair of zipper closure bands to which coupling elements are fixed along marginally facing areas of a pair of support tapes in the longitudinal direction and a cursor that is susceptible to sliding along the coupling elements and can engage or separate the coupling elements, in which the coupling elements are formed of a monofilament of synthetic resin and a metal coating layer is formed on an upper surface of a part of the upper arm of a coupling element except for an outer side face that can come into sliding contact with a guide flange of the
cursor.

Preferably, the coating layer metallic is formed on the upper surface of the element of coupling made of synthetic resin or metal fixed to the tape of support, except on an outer side face of a head of coupling of the coupling element in contact with a post of cursor guide.

Preferably, the coupling element, intended to be fixed to the support tape and comprising the layer of metallic coating, is constituted by elements of helical coupling formed by winding a monofilament of synthetic resin in spiral form.

Alternatively, the coupling element intended to be fixed to the support tape 10 and comprising the layer of metallic coating, it is constituted by elements of Zigzag coupling formed by folding a monofilament of Zigzag synthetic resin.

Preferably, the coupling element, which comprises the metal coating layer, is sewn to a side edge of the support tape with sewing threads, so a metallic luster is ensured.

Alternatively, the coupling element, comprising the metal coating layer, is incorporated by weaving on a side edge of the support tape with threads of weave, which ensures a metallic luster.

As yet another alternative, the element of coupling, which comprises the metal coating layer, is Built-in knitting on a side edge of the support tape with warp knitting threads, which ensures a metallic luster

Preferably, the sewing thread, the thread of knitting and knitting yarn by warp, arranged on the coupling element provided with the coating layer metal, in order to fix the coupling element to the belt support, consists of a transparent thread or a thread provided with a color similar to that of the coating layer metallic, thereby improving the function of the coating layer metallic

Preferably, the cursor is formed by die casting or injection molding with the use of metal or synthetic resin, which achieves a metallic luster.

Brief description of the drawings

Figure 1 is a perspective view of a helical coupling element made of resin synthetic

Figure 2 is a front view of a closure of zipper comprising the helical coupling element.

Figure 3 is a sectional view of the closure zipper comprising the helical coupling element of Figure 2.

Figure 4 is a sectional view of a band Zip closure that carries the coupling element helical.

Figure 5 is a side view of a band of Zip closure that carries the coupling element helical of Figure 4.

Figure 6 is a sectional view of a band Zip closure that carries the coupling element helical without core cord.

Figure 7 is a perspective view of a zigzag coupling element made of resin synthetic

Figure 8 is a front view of a band of Zip closure comprising the coupling element in zig Zag.

Figure 9 is a sectional view of a band zipper closure comprising the coupling element in zigzag of Figure 8.

Figure 10 is a front view of a band Woven zipper closure.

Figure 11 is a front view of a band Zip closure of knitwear.

Description of the preferred embodiments

They will be described in detail below. the preferred embodiments of a zipper closure of according to the invention and with reference to the attached drawings.

In the zipper closure according to the present invention, as shown in Figure 2, the closure of zipper is provided with a pair of zipper closure bands 23, 23, to which coupling elements 1, 1 are fixed to along side marginal portions facing a couple of support tapes 10, 10 in the longitudinal direction, the 10, 10 woven or knitted support straps with synthetic fiber like polyester or nylon, or natural fiber like cotton, and a cursor 17 which is susceptible to sliding along the elements of coupling 1, 1 and can couple or separate the elements of coupling 1, 1. And a coupling element 1 for closing Zipper is formed of synthetic resin like polyamide, polyester or similar As shown in Figure 1, the element of coupling 1 in a first embodiment of the invention forms a helical coupling element 2 by winding a synthetic resin monofilament in spiral form. This element of helical coupling 2 is constituted by a head of coupling 6, a part of the upper arm 7, a part of the arm bottom 8, and an inverted portion 9 to join a part of the arm upper 7 with the lower arm part 8. A layer of metal lining 20 is formed on an arm surface upper 7 except on an outer side face of the head of coupling 6, an outer side face of the inverted portion 9, and the lower arm part 8.

The metal coating layer 20 is formed depositing aluminum, chrome, nickel, stainless steel, gold, silver, copper, brass or similar in the form of a thin film or creating a metallic coating by vacuum deposition, silver ionic, sizzled, chemical silver or similar. Preferably this metal coating layer 20 is formed with a thickness in the range from 0.001 to 1.0 µm.

As shown in Figures 4 and 5, a cord of core 11 is inserted into the helical coupling element 2 which carries the metallic coating layer 20 after which it sew the coupling element 2 to a side edge of a tape of support 10 with the sewing thread 12 by means of a sewing system double ring using three wires with two needles to form a zipper closure band 23. As shown in Figures 2 and 3, a cursor 17 is placed to pick up the right bands and left 23 and right and left coupling heads 6 they engage each other to form the zipper closure to cause the cursor to slide 17.

The metallic cursor 17 is formed by die casting or the synthetic resin cursor is formed by injection. As seen in Figures 2 and 3, at cursor 17 a upper fin 33 and a lower fin 34 arranged so parallel on the side of a shoulder 31 are connected by a pole of guide 18, and an element guide groove36, in which you can insert the coupling element 2, it is provided between respective fins. A long guide tab 19 protruding towards the lower fin 34 is formed in both marginal portions sides of the upper fin 33. While a few short eyelashes guide that protrude slightly towards the upper fin 33 are also formed in both lateral marginal portions of the fin bottom 34 in the embodiment shown, if necessary Short guide tabs can be omitted. And a portion of trailing tongue fastener 32 is fixed to a surface of the upper flap 33, and a pull tab 35 is fixed to this so that it swings freely. The guide tab 19 before described of cursor 17 presents an appropriate form for the element helical coupling 2, but guide tabs arranged in the upper and lower fins 33, 34 protrude respectively towards the other fin with the same length, in the case of the element zigzag coupling 3 or coupling elements Discreet 4 and 5 made of metal or synthetic resin, which will describe later.

The metal coating layer 20 is formed on the surface of the upper arm part 7 of the helical coupling element 2 and does not form so positive on the outer side face of the coupling head 6 and on the outer side face of the inverted portion 9. Since small burrs often exist in the partition line in the inside face of guide tab 19 of cursor 17 formed by die casting or injection and even if the layer of metal lining 20 is formed on the surface of the element helical coupling 2, when the cursor 17 slides, the burrs on guide flange 19 scratch the coating layer metal 20 deposited from the inverted portion 9, whereby Spread metallic powder. In addition, the metal coating layer 20 can be exfoliated from the outer side face of the head of coupling 6, which comes into contact with the guide post 18 of the cursor 17, so there is a fear of dust spreading metal.

Therefore, when it is intended to provide the metallic coating layer 20 on the surface of the element of helical coupling 2, except that the layer of metal coating 20 on the outer side face of the portion inverted 9 and the outer side face of the coupling head 6, which come into contact with cursor 17 when it slides, does not any metal powder is spread, in this way, the desired purpose, so that this coupling element can preferably used in products that have to have benefits Fashionable face.

In addition, if the fashion aspect is taken into account of the zipper, when sewing the coupling element helical 2 to the support belt 10 with a sewing thread 12 which is transparent colorless or has a color similar to the layer of metal coating 20, favorably sewing thread 12 attracts a lot of attention in the helical coupling element 2 provided with the metal coating layer 20.

According to a zip closure band 23 of a second embodiment shown in Figure 6, the helical coupling element 2 is formed by winding a synthetic resin monofilament in spiral form. In this element of coupling 2, the metallic coating layer 20 is formed on the surface of the upper arm part 7 and is not formed on the outer side face of the coupling head 6, the face outer side of the inverted portion 9, and the arm part bottom 8. The helical coupling element 2 is sewn to the support tape 10 by a double sewing system ring without core cord, and a transparent thread is used colorless or white in color as sewing thread 12. This Zip closure band 23 also prevents exfoliation or scratching of the metal coating layer 20 and spreading of metal dust.

The coupling element 1 of a third embodiment of the present invention shown in Figure 7 is a zigzag coupling element 3 formed by folding a Zigzag-shaped synthetic resin monofilament and returning backward from its center. This coupling element zigzagging 3 is constituted by the coupling head 6, the upper arm part 7 and lower arm part 8 connected to the coupling head 6, and the inverted portion 9 of joining the parts of arms 7 and 8 to the adjacent ones. TO then, the metal coating layer 20 is formed in the surface of the upper arm part 7 except on the side face outside of the coupling head 6, the outer side face of the inverted portion 9 of the upper arm part 7 and the part of the lower arm 8 and the inverted portion 9 of the arm part lower 8, as in the first embodiment.

In this zigzagging coupling element 3, as seen in Figures 8 and 9, a side edge of the tape of support 10 is sandwiched between the upper arm part 7 and the lower arm part 8 and the upper arm parts e bottom 7 and 8 are sewn to the support tape 10 with the thread sew 12 arranging the double ring sewing system using two threads in a single needle mutually parallel, to form the zipper closure band 23. If a sewing thread 12 is used which is colorless transparent or has a color similar to that of the metallic coating layer 20, the metallic luster of the layer of Metal coating 20 presents a beautiful appearance. Further, it is permissible to arrange the loop wire and needle thread of the double ring sewing system upside down.

In the zigzagging coupling element 3 also, even when the guide tab 19 comes into contact with the outer side face of the inverted portion 9 of the part of the upper arm 7 or guide post 18 comes into contact with the face outer side of the coupling head 6 when the cursor 17 slide, there is no fear of eventual peeling or scratching of the metallic coating layer 20 by guide flange 19 or the guide post 18, because the metal coating layer 20 does not it is formed on the outer side face of the inverted portion 9 nor on the outer side face of the coupling head 6. Meanwhile, it is permissible to sew the coupling element zigzagging 3 to a side edge of the support tape 10 for stand in it.

In the zipper closure band 23 of a fourth embodiment of the invention shown in Figure 10, when the coupling element 1 is fixed and attached to the belt of support 10, the coupling element 1 is incorporated by weaving on a side edge of the support tape 10 with the thread knitting 13. More specifically, the core cord 11 is inserted inside the helical coupling element 2 shown in the Figure 1 and this helical coupling element 2 is incorporated by weaving on the support tape 10 with a warp thread 14 for knitting the support tape 10 and warp thread 15 of double pass. In this case, if a colorless transparent thread is used or a thread that has a color similar to that of the coating layer metal 20 for the warp thread 14 intended to be arranged in the upper face of the metal clad layer 20 of the element of helical coupling 2, the metallic luster of the metal coating layer 20. Since the layer of metal lining 20 does not directly affect the slip of cursor 17, there is no fear of eventual dust spreading metal.

In a zipper closure band 23 of a fifth embodiment of the invention shown in Figure 11, when the coupling element 1 is fixed and attached to the belt of support 10, the coupling element 1 is incorporated by knitting on a side edge of the support tape 10 with the thread knitwear by warp 16. More specifically, it incorporates the helical coupling element 2 shown in the Figure 1 by knitting on a side edge of the support tape 10 provided with a knitted warp knit structure with a warp knitting yarn 16 such as a knitting yarn chain, two-wire mesh thread, knitting yarn or similar. If a colorless transparent thread or a thread having a color similar to that of the metallic coating layer 20 for the warp knitting yarn 16 intended to be arranged in the upper face of the metal clad layer 20 of the element of helical coupling 2, the metallic luster of the metal coating layer 20. Since the layer of metal lining 20 does not directly affect the slip of cursor 17, there is also no fear of dust spreading metal.

In addition, by forming the coupling element 1 With colorless transparent material, it doesn't attract much attention to the fact that there is no metal coating layer 20 on the outer face of the coupling element 1, thereby improving the good Zipper closure appearance.

The zipper closure of the present invention presents the structure described above, and the effects are achieved following with this structure.

According to the invention, the layer of metal lining 20 is formed on the side surface upper of the coupling element 1, except on its side face exterior that makes contact with the guide tab 19 of the cursor 17 and the outer side face of the coupling head 6 which makes contact with guide post 18 of cursor 17. As a result, avoids the scratching phenomenon of the metal coating layer 20 and spreading metal dust by contact with small burrs existing in guide tab 19 or guide post 18. In this way, the coupling element 1 provided with a beautiful metallic luster can be used for a long period of time and you can provide a fashionable zipper closure and Economical to meet user requirements.

And the invention can be applied to different types of the coupling elements 1, such as the coupling element helical 2, the zigzagging coupling element 3, the injection molded coupling element 4, made in synthetic resin and discrete metal coupling elements 5. As a result, in addition to the effect of the first or second aspect, there is the effect of being able to supply different types of elements Coupling 1 provided with a beautiful metallic luster for meet the demands of the users.

In addition, the coupling element 1 is sewn a side edge of the support tape 10 with a sewing thread 12 or it is incorporated by weaving with knitting yarn 13 or incorporated by knitting with the knitted warp yarn 16. As result, the coupling element 1 provided with a beautiful Metallic luster can be easily applied to different types of zipper closure, so that you can produce a beautiful Zip closure.

And also, the sewing thread 12, the knitting thread 13 and the warp knitting yarn 16 intended for be arranged on the coupling element 1 to hold the coupling element 1 to the support tape 10 are formed by a transparent thread or a thread that has a color similar to that of the metal coating layer 20. As a result, the thread does not attracts a lot of attention, so that without hindering the function of the metal coating layer 20 of the coupling element 1, The beautiful metallic luster may seem more beautiful.

And even more, the cursor 17 is formed by die casting or injection molding with the use of metal or synthetic resin. As a result, even when a conventional cursor is used, there is no fear of being able to damage the metal coating layer 20 formed in the coupling element 1, so that the beautiful metal luster can be maintained for a long period of time. Therefore, the effects of the present invention are very
conspicuous

Claims (10)

1. Zip closure provided with a pair of zip closure bands (23, 23) to which coupling elements (1, 1) are fixed along marginal facing areas of a pair of support bands (10, 10) in the longitudinal direction and a cursor (17) that is susceptible to sliding along the coupling elements (1, 1) and which can couple or separate the coupling elements (1, 1) in which the elements of coupling (1, 1) are formed of a monofilament of synthetic resin, characterized in that a metal coating layer (20) is formed on an upper surface of the upper arm part of a coupling element (1) except for a side face outside of it that can come into sliding contact with a guide tab (19) of the cursor (17). 2. Zip closure, comprising a coupling element for a zip closure according to claim 1, characterized in that the metal coating layer (20) is formed on the upper surface of the coupling element (1) except for an outer side face of a coupling head (6) in contact with a guide post (18) of the cursor (17). 3. Zip closure, comprising a coupling element for a zip closure according to claim 1, characterized in that the coupling element (1) is formed by helical coupling elements (2) formed by winding a monofilament of synthetic resin in form of spiral 4. Zip closure, comprising a coupling element for a zip closure according to claim 1, characterized in that the coupling element (1) is formed by zigzagging coupling elements (3) formed by bending a monofilament of synthetic resin in form of zigzag 5. Zip closure according to claim 3 or 4, characterized in that the coupling element (1) is sewn to a side edge of a support tape (10) with sewing thread (12). 6. Zip closure according to claim 3 or 4, characterized in that the coupling element (1) is woven into a side edge of the support tape (10) with knitting yarn (13). 7. Zip closure according to claim 3 or 4, characterized in that the coupling element (1) is knitted on a side edge of the support tape (10) with warp knitting yarn (16). 8. Zip closure according to claim 5, 6 or 7, characterized in that the sewing thread (12), knitting thread (13) and warp knitting yarn (16) intended to be disposed on the upper part of the element of coupling (1) to fix the coupling element (1) to the support tape (10) is formed by a transparent thread or a thread having a color similar to that of the metal coating layer (20). 9. Zip closure according to claim 1, characterized in that the cursor (17) is formed by die casting or injection molding using metal or synthetic resin. 10. Zip closure according to claim 1, characterized in that the coupling element (1) is formed by colorless transparent material.