KR101335750B1 - Anti-theft 2-layered zipper - Google Patents

Abstract

The present invention is to provide an anti-theft zipper configured so as not to tear the coupling means with a pointed object from the outside of the zipper. The anti-theft two-layer zipper according to the present invention, the first zipper tape comprising a first slider having a plurality of first coupling means arranged and engaging and separating the first coupling means, and a plurality of second coupling means And a second zipper tape comprising a second slider arranged and engaging the second coupling means. The first zipper tape and the second zipper tape are respectively disposed on an upper layer and a lower layer to form a two-layer structure. The second slider is coupled to at least a portion of the first slider and interlocks with the first slider. The width of the first coupling tape and the second coupling tape in the longitudinal direction of the first zipper tape and the second zipper tape is different from each other. When the width in the longitudinal direction of the first and second zipper tapes of the first coupling means is W ₁ and the width of the second coupling means is W ₂ , nW ₁ ≠ W ₂ (n = 1, 2 , 3, ...).

Description

Anti-theft zipper {Anti-theft 2-layered zipper}

The present invention relates to a zipper in which a zipper tape is arranged in two layers on an upper layer and a lower layer to prevent theft.

1 is a view showing one type of component of a general zipper. A plurality of metal or synthetic resin coupling means 13 is arranged on the zipper tape 11, and is composed of a slider 15 for coupling and separating the coupling means 13 on both sides. Attached to the slider 15 is a puller 17 that is held by hand to move the slider 15. In such a zipper, the coupling means 13 is embedded in the zipper tape 11, but in order to reduce manufacturing costs and light weight, in recent years, instead of attaching the teeth to the fabric tape individually, nylon in the form of a coiled nylon string is bonded to the fabric tape. Zipper is widely used.

At present, zippers are commercialized in various ways and are widely used in clothing, bags, shoes, and various other products due to their convenience. In particular, in the case of a travel bag, there are more opportunities for exposure to others, so that a lock (not shown) is provided on the slider 15 or the puller 17 to prevent theft of the internal items.

However, even if the coupling means 13 are strongly coupled to each other, and no matter how the lock is installed, the combined ones are easily opened by strongly poking between the coupling means with a pointed object such as an awl, a driver, a ballpoint pen, etc. from the outside. In other words, the engaging means are placed on both sides of the zipper tape is engaged between the engaging means or the nylon coil, the engaging means is separated. In this way, it is often the case to steal the contents by unzipping the bags at airports, terminals, etc.

An object of the present invention, to solve the problems posed above, to provide an anti-theft zipper configured not to tear the zipper even when trying to tear the zipper by hitting the coupling means with a pointed object from the outside.

In order to achieve the above object, an anti-theft two-layer zipper according to the present invention includes a first zipper tape including a plurality of first coupling means and a first slider for coupling and separating the first coupling means. And a second zipper tape comprising a second slider arranged in the second coupling means and including a second slider for coupling and separating the second coupling means. The first zipper tape and the second zipper tape are respectively disposed on an upper layer and a lower layer to form a two-layer structure. The second slider is coupled to at least a portion of the first slider and interlocks with the first slider. The width of the first coupling tape and the second coupling tape in the longitudinal direction of the first zipper tape and the second zipper tape is different from each other.

Each of the first coupling means and the second coupling means is a separate zipper tooth, and may be arranged to be embedded in the first zipper tape and the second zipper tape, and the first coupling means and the second coupling means are each formed of a continuous nylon in a coil form. As the wire rod, it may be installed on the first zipper tape and the second zipper tape, respectively, as in the general nylon zipper.

When the width in the longitudinal direction of the first and second zipper tapes of the first coupling means is W ₁ and the width of the second coupling means is W ₂ , nW ₁ ≠ W ₂ (n = 1, 2 , 3, ...). It may also be W ₁ <W ₂ or W ₁ <W ₂ .

In addition, the shape of each of the first coupling means and the second coupling means (ie, the width of the first zipper tape and the second zipper tape in the longitudinal direction) may be different from each other.

In addition, in the present invention, the longitudinal axis in which the first coupling means is arranged in the longitudinal direction and the longitudinal axis in which the second coupling means is arranged in the longitudinal direction may be arranged to be shifted from each other in a predetermined interval in the transverse direction.

In the upper and lower two-layer zipper structure according to the present invention, even when hitting the upper zipper with a pointed object such as a ballpoint pen, awl, driver, etc. from the outside, the zipper on the upper layer is not easily torn apart from the conventional one-layer zipper structure.

If the upper zipper is torn apart, the upper zipper is pushed toward the lower zipper so that it is severely angled, so that the coupling parts of the zipper coupling means (zip teeth, or in the case of nylon zippers, the nylon coil protrusions) must be separated from each other. The forward and backward directions of the zipper should extend far wider than the upper zipper. However, due to the structure, the lower zipper can not be stretched more than the upper zipper in the front and rear or left and right, so the repelling force is generated and the upper zipper can not be folded to the extent that the uneven portion formed by combining the zipper teeth is separated.

Even if the zipper on the upper layer is torn off, the zipper on the lower layer will not be torn off to prevent theft of the contents of the bag.

1 is a schematic view of a typical zipper.
Figure 2 is a block diagram of a two-layer zipper according to the present invention.
Figure 3 is a longitudinal sectional view of a two-layer zipper according to the present invention.
4 is a longitudinal sectional view of another embodiment of a two-layer zipper in accordance with the present invention.
5 is a conceptual diagram for explaining the principle of the two-layer zipper according to the present invention.
6 is a view for comparing the size of the upper coupling means and the lower coupling means.
Figure 7 is a cross-sectional view showing another embodiment of a two-layer zipper according to the present invention.

A specific embodiment of the present invention will be described with reference to FIG. Figure 2 shows a perspective view of the anti-theft two-layer zipper according to the present invention, Figure 3 shows a longitudinal cross-sectional view of the two-layer zipper of the structure shown in FIG. 4 is a longitudinal cross-sectional view of an embodiment different from FIG. 3. In the following description, for convenience of illustration, the shape of the zipper coupling means is illustrated as individual zipper teeth, in fact, the zipper coupling means includes not only zipper teeth, but also nylon coil protrusions of the nylon zipper, It is self-evident to those of ordinary knowledge in Esau.

2 to 4, the first zipper tape 21 and the second zipper tape 21 ′ are positioned on the upper and lower layers, respectively, to form a two-layer structure. The second slider 23 'of the second zipper tape 21' is coupled with the first slider 23 to be operated together when the first slider 23 is operated. That is, the first slider 23 and the second slider 23 'interlock with each other.

In the embodiment shown in FIG. 2, the first slider 23 and the second slider 23 ′ are represented as being coupled by a connecting portion 24, but in another embodiment, the first slider 23 and the first slider 23 ′ are combined without the connecting portion 24. The slider 23 and the second slider 23 ′ may be directly coupled to each other or may be manufactured integrally. In this connection, in Fig. 2, the length of the connecting portion 24 is exaggerated. That is, the distance between the first zipper tape 21 and the second zipper tape 21 'is widely described for ease of understanding.

Also, FIGS. 2 and 3 represent components of the connection part 24 to conceptually indicate that the first slider 23 and the second slider 23 'are interlocked. You can combine the sliders in different ways. For example, it may be manufactured integrally using a single mold, or may be separately manufactured and then coupled to the connecting portion 24 using fastening means (screws, rivets, welding, bonding, etc.). In other words, as shown in FIG. 4, the first zipper tape 21 and the second zipper tape 21 ′ may be arranged in two layers closer than this. In fact, disposing the first zipper tape 21 and the second zipper tape 21 'as close as possible as shown in FIG. 4 may further help to achieve the object of the present invention.

On the other hand, the first coupling means 25 and the second coupling means 25 are made of metal (made of bronze, bronze such as bronze, aluminum, or the like), respectively, which are arranged by being separately driven to the first zipper tape and the second zipper tape. It may be a synthetic resin "zipper teeth".

On the other hand, in recent years, a nylon zipper, which is produced by embedding a continuous coil-shaped wire rod made of nylon into a zipper tape for weight reduction and cost reduction, has been widely used. Nylon zippers have zipper teeth on only one side, and there are no zipper teeth on the other side, and zipper teeth on both sides. Of course, in the case of such a nylon zipper can be applied to the anti-theft two-layer zipper according to the present invention. As a result, the anti-theft two-layer zipper structure according to the present invention can be applied to all existing types of zippers.

In particular, the weight of the bag is increased because two zippers are mounted up and down in the application of the present invention, which is to counter the efforts to reduce the weight of any travel bag even 1g. Applying the present invention to the nylon zipper will be able to reduce the weight increase of the bag even a little.

The principle of the anti-theft action of the present invention will be described with reference to FIG. 5 (a) to 5 (c) are enlarged X portions indicated by dashed lines in FIG. 4 and are schematic conceptual views of the zipper teeth engaged in the upper and lower layers from the side. (a) is a diagram showing that the first zipper tape 21 and the second zipper tape 21 'are arranged in the upper and lower two layers at intervals of d, and (b) shows the first zipper tape 21 in the upper layer. When the zipper engaging means (i.e., the zipper teeth) are stabbed by a pointed object 28 such as a ballpoint pen or awl, the first and second zipper tapes 21 and 21 ' It is a figure for demonstrating virtually. (c) is a figure for demonstrating the situation where it is very difficult for the 1st zipper tape 21 to fall down by the external blow.

When the first zipper tape 21 is knocked down when the first zipper tape 21 is knocked down by hitting the first zipper tape 21 on the upper layer with the pointed object 28 in the state of FIG. Let G be the minimum interval of. Assuming that the pointed object 28 descends strongly and falls down to the second zipper tape 21 'in the lower layer, the gap between the second zipper tape 21' is much larger than G as shown in Fig. (B). Will be However, the figure (b) is exaggeratedly drawn on the assumption that the second zipper tape 21 'is next, in fact, the longitudinal ends and the transverse ends of the first zipper tape 21 and the second zipper tape 21'. Since the position of the second zipper tape 21 'hardly changes since the direction edge is fixed to the bag body, the situation as shown in Fig. (B) cannot occur. Rather, as shown in (c), the lower second zipper tape 21 'remains and only the upper first zipper tape 21 descends, but immediately below the lower second zipper tape 21'. Since there is, there is much more possibility that the first zipper tape 21 does not actually open. That is, according to the present invention, since the second zipper tape 21 'positioned below the first zipper tape 21 has the effect of reinforcing the rigidity of the first zipper tape 21, the first zipper tape 21 ) Is significantly less likely to be knocked out by external blows than conventional one-layer zippers.

Next, FIG. 6 is a view for showing that the sizes of the first coupling means 25 and the second coupling means 25 'are different from each other. Specifically, the widths W ₁ and W _{2 in} the longitudinal direction of the first zipper tape 21 and the second zipper tape 21 ′ are different from each other.

The reason for doing this is that the second zipper tape 21 'in the lower layer is firmly supported even if the first zipper tape 21 in the upper layer is torn by the same principle as in FIG. This is to exclude the possibility that the tape 21 'is torn off. That is, a sharp object that penetrates between the first coupling means 25 and the second coupling means 25 'engaged with each other, which is located in the upper and lower two layers, is the second coupling means 25' of the second zipper tape 21 '. This is to prevent the second coupling means 25 'of the second zipper tape 21 from being torn by being caught by the body of the second coupling means 25' without being directly contacted between the coupling portions of the second coupling means 25 '.

In addition, in order to double this purpose, in the embodiment shown in FIG. 6, the width W ₁ of the first coupling means 25 and the width W ₂ of the second coupling means 25 ′ are nW ₁ ≠ W _2. It was designed so that (n = 1, 2, 3, ...), that is, there is no drainage relationship with each other. In this way, when the arrangement of the first coupling means 25 and the arrangement of the second coupling means 25 'are folded, there is no point where the gaps between the teeth coincide, so that the first coupling means 25 in the upper layer is provided. It is possible to minimize the possibility that the pointed object penetrated between the between the second coupling means (25 ') in the lower layer.

In addition, in one embodiment of the present invention, the size of the first coupling means 25 and the second coupling means (25 '), the size of the coupling means located in the upper layer is smaller than the size of the coupling means located in the lower layer. That is, it is configured so that W ₁ <W ₂ . On the other hand, it may be configured such that W _1> W _2. In this case, the zipper on the lower layer is different from the zipper on the upper layer. Instead of being directly hit by a sharp object, the zipper needs to be pulled back and forth along the moving direction of the zipper slider. By doing so, it is possible to minimize the weight increase of the bag product with the two-layer zipper.

In addition, in order to make the bag as light as possible, for example, the upper zipper is composed of a conventional zipper, but the lower zipper may be considered a way to configure a lighter zipper.

In another embodiment of the present invention, not only the size but also the shape of the first coupling means 25 and the second coupling means 25 'are designed differently. This further doubles the effect of the present invention.

7 shows the longitudinal axis in the longitudinal direction in which the first coupling means 25 is arranged and the longitudinal axis in the longitudinal direction in which the second coupling means 25 'are arranged so as to be offset from each other by L in the lateral direction. As an example, the XX cross-sectional view of FIG. 4 is shown. By doing so, even if a pointed object penetrates between the coupling means 25 of the first zipper tape 21 in the upper layer, there is an effect that it does not directly contact the coupling means 25 'of the second zipper tape 21. .

The anti-theft zipper according to the present invention has been described above with reference to the accompanying drawings, but various modifications and changes can be made without departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the following claims and their equivalents.

Zipper tape (11) Coupling means (13) Slider (15) Puller (17) First zipper tape (21) Second zipper tape (21 ') First slider (23) Second slider (23') Connecting portion 24 First coupling means 25 Second coupling means 25 'Zipper tape edge holder 27 Pointed object 28

Claims (8)

A first zipper tape comprising a plurality of first coupling means and including a first slider for coupling and separating the first coupling means, and a plurality of second coupling means arranged and combining the second coupling means; A second zipper tape including a second slider to separate,
The first zipper tape and the second zipper tape are located in the upper and lower layers, respectively, to form a two-layer structure,
The second slider is coupled to at least a portion of the first slider and interlocks with the first slider,
The first coupling means and the second coupling means, characterized in that the width of the first zipper tape and the second zipper tape in the longitudinal direction are different from each other, anti-theft zipper. 2. The anti-theft zipper of claim 1, wherein the first coupling means and the second coupling means are respectively embedded in the first zipper tape and the second zipper tape. The anti-theft zipper of claim 1, wherein the first coupling means and the second coupling means are respectively installed on the first zipper tape and the second zipper tape as coil-shaped continuous wires. The width of the first coupling tape and the length of the first zipper tape and the second zipper tape in the longitudinal direction of the first coupling means is W ₁ , and the width of the second coupling means is W ₂ . When the anti-theft two-layer zipper, characterized in that nW ₁ ≠ W ₂ (n = 1, 2, 3, ...). The width of the first coupling tape and the length of the first zipper tape and the second zipper tape in the longitudinal direction of the first coupling means is W ₁ , and the width of the second coupling means is W ₂ . Theft two-layer zipper, characterized in that W ₁ <W ₂ . The width of the first coupling tape and the length of the first zipper tape and the second zipper tape in the longitudinal direction of the first coupling means is W ₁ , and the width of the second coupling means is W ₂ . Theft two-layer zipper, characterized in that when W ₁ > W ₂ . The anti-theft two-layer zipper according to any one of claims 1 to 3, wherein the first coupling means and the second coupling means have different shapes. The transverse direction according to any one of claims 1 to 3, wherein the first longitudinal axis in which the first coupling means is arranged in the longitudinal direction and the second longitudinal axis in which the second coupling means is arranged in the longitudinal direction are in the transverse direction. The double-layered zipper for theft prevention that assumes that there is a difference.

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